tela super amoled vs tft lcd for sale

AMOLED and TFT are two types of display technology used in smartphones. AMOLED (active-matrix organic light-emitting diode) displays are made up of tiny organic light-emitting diodes, while TFT (Thin-Film Transistor) displays use inorganic thin-film transistors.

AMOLEDs are made from organic materials that emit light when an electric current is passed through them, while TFTs use a matrix of tiny transistors to control the flow of electricity to the display.

Refresh Rate: Another key difference between AMOLED and TFT displays is the refresh rate. The refresh rate is how often the image on the screen is updated. AMOLED screens have a higher refresh rate than TFT screens, which means that they can display images more quickly and smoothly.

Response Time: The response time is how long it takes for the pixels to change from one colour to another. AMOLED screens have a shorter response time than TFT screens..

Colour Accuracy/Display Quality: AMOLED screens are more accurate when it comes to displaying colours. This is because each pixel on an AMOLED screen emits its own light, which means that the colours are more pure and true to life. TFT screens, on the other hand, use a backlight to illuminate the pixels, which can cause the colours to appear washed out or less vibrant.

Viewing Angle: The viewing angle is the angle at which you can see the screen. AMOLED screens have a wider viewing angle than TFT screens, which means that you can see the screen from more angles without the colours looking distorted.

Power Consumption: One of the main advantages of AMOLED displays is that they consume less power than TFT displays. This is because the pixels on an AMOLED screen only light up when they need to, while the pixels on a TFT screen are always illuminated by the backlight.

Production Cost: AMOLED screens are more expensive to produce than TFT screens. This is because the manufacturing process for AMOLED screens is more complex, and the materials used are more expensive.

Availability: TFT screens are more widely available than AMOLED screens and have been around for longer. They are typically used in a variety of devices, ranging from phones to TVs.

Usage: AMOLED screens are typically used in devices where power consumption is a concern, such as phones and wearable devices. TFT screens are more commonly used in devices where image quality is a higher priority, such as TVs and monitors.

AMOLED and TFT are two different types of display technology. AMOLED displays are typically brighter and more vibrant, but they are more expensive to produce. TFT displays are cheaper to produce, but they are not as bright or power efficient as AMOLED displays.

The display technology that is best for you will depend on your needs and preferences. If you need a screen that is bright and vibrant, then an AMOLED display is a good choice. If you need a screen that is cheaper to produce, then a TFT display is a good choice. However, if you’re worried about image retention, then TFT may be a better option.

7612 tft amoled products are offered for sale by suppliers on Alibaba.comAbout 23% % of these are mobile phone lcds, 6%% are lcd modules, and 5%% are oled/e-paper modules.

A wide variety of tft amoled options are available to you, such as original manufacturer, odm.You can also choose from datasheet, tft amoled,as well as from tft, ips, and standard tft amoled,

Thanks for the display technology development, we have a lot of display choices for our smartphones, media players, TVs, laptops, tablets, digital cameras, and other such gadgets. The most display technologies we hear are LCD, TFT, OLED, LED, QLED, QNED, MicroLED, Mini LED etc. The following, we will focus on two of the most popular display technologies in the market: TFT Displays and Super AMOLED Displays.

TFT means Thin-Film Transistor. TFT is the variant of Liquid Crystal Displays (LCDs). There are several types of TFT displays: TN (Twisted Nematic) based TFT display, IPS (In-Plane Switching) displays. As the former can’t compete with Super AMOLED in display quality, we will mainly focus on using IPS TFT displays.

OLED means Organic Light-Emitting Diode. There are also several types of OLED, PMOLED (Passive Matrix Organic Light-Emitting Diode) and AMOLED (Active Matrix Organic Light-Emitting Diode). It is the same reason that PMOLED can’t compete with IPS TFT displays. We pick the best in OLED displays: Super AMOLED to compete with the LCD best: IPS TFT Display.

Steven Van Slyke and Ching Wan Tang pioneered the organic OLED at Eastman Kodak in 1979. The first OLED product was a display for a car stereo, commercialized by Pioneer in 1997. Kodak’s EasyShare LS633 digital camera, introduced in 2003, was the first consumer electronic product incorporating a full-color OLED display. The first television featuring an OLED display, produced by Sony, entered the market in 2008. Today, Samsung uses OLEDs in all of its smartphones, and LG manufactures large OLED screens for premium TVs. Other companies currently incorporating OLED technology include Apple, Google, Facebook, Motorola, Sony, HP, Panasonic, Konica, Lenovo, Huawei, BOE, Philips and Osram. The OLED display market is expected to grow to $57 billion in 2026.

AMOLED (Active Matrix Organic Light Emitting Diode) is a type of OLED display device technology. OLED is a type of display technology in which organic material compounds form the electroluminescent material, and active matrix is the technology behind the addressing of individual pixels.

An AMOLED display consists of an active matrix of OLED pixels generating light (luminescence) upon electrical activation that have been deposited or integrated onto a thin-film transistor (TFT) array, which functions as a series of switches to control the current flowing to each individual pixel.

Typically, this continuous current flow is controlled by at least two TFTs at each pixel (to trigger the luminescence), with one TFT to start and stop the charging of a storage capacitor and the second to provide a voltage source at the level needed to create a constant current to the pixel, thereby eliminating the need for the very high currents required for PMOLED.

TFT backplane technology is crucial in the fabrication of AMOLED displays. In AMOLEDs, the two primary TFT backplane technologies, polycrystalline silicon (poly-Si) and amorphous silicon (a-Si), are currently used offering the potential for directly fabricating the active-matrix backplanes at low temperatures (below 150 °C) onto flexible plastic substrates for producing flexible AMOLED displays. Brightness of AMOLED is determined by the strength of the electron current. The colors are controlled by the red, green and blue light emitting diodes.  It is easier to understand by thinking of each pixel is independently colored, mini-LED.

IPS technology is like an improvement on the traditional TFT LCD display module in the sense that it has the same basic structure, but with more enhanced features and more widespread usability compared with the older generation of TN type TFT screen (normally used for low-cost computer monitors). Actually, it is called super TFT.  IPS LCD display consists of the following high-end features. It has much wider viewing angles, more consistent, better color in all viewing directions, it has higher contrast, faster response time. But IPS screens are not perfect as their higher manufacturing cost compared with TN TFT LCD.

Utilizing an electrical charge that causes the liquid crystal material to change their molecular structure allowing various wavelengths of backlight to “pass-through”. The active matrix of the TFT display is in constant flux and changes or refreshes rapidly depending upon the incoming signal from the control device.

Compared to traditional TFT screens, AMOLED displays black, thick and solid black, while TFT is more like dark gray. The white of AMOLED is also pure white, resulting in a more transparent display. Ultrathin

AMOLED displays are thinner than LCD displays. LCD displays contain backlights, color filters, ultra-thin design backlight modules and liquid crystal materials that amOLeds do not need because of their self-emitting body principle. Integrated touch technology also makes AMOLED displays thinner and thinner. The world"s first AMOLED integrated touch screen was introduced in 2010 and has been used in high-end smart phones. Phones

It"s not impossible to see maps and addresses on a phone in bright light. Outdoor readability is proportional to chromaticity X brightness, and THE chromaticity of OLED is 1.7 times that of LCD. The AMOLED display is good for outdoor readability, allowing colors to appear clearly even in bright sunlight, providing a better perspective for outdoor reading.

AMOLED displays use significantly less energy than traditional LCD screens because each pixel of an AMOLED display can be independently controlled without a constant backlight. When browsing a web page with a white background, such as Baidu, most pixels need to be 100 percent bright. On the other hand, when a darker video is played, the pixels glow less. In this case, the emission brightness of the LCD screen is 100%, and the local brightness is regulated by controlling the rotation direction of the LIQUID crystal molecules.

Each pixel in an AMOLED display can independently adjust its brightness, which means it doesn"t need to emit 100 percent brightness, saving energy on the device. Even watching videos or enjoying multimedia does not cause a huge loss of battery life. In an emergency, the phone can be used for up to 24 hours by enabling a power saving mode as low as 10 percent to avoid unnecessary pixel power consumption.

2)High-resolution AMOLED uses the Pentile arrangement, unlike the traditional LCD where one pixel is equal to a collection of three sub-pixels, red, green and blue. Instead, one pixel is equal to 1 green 0.5(blue-red), with a large emphasis on green to make the picture look brighter.

3)AMOLED self-lighting, individual pixels do not work when displaying black, low power consumption when displaying dark. So AMOLeds use less power in dark colors, have hundreds of times the contrast of traditional LCDS, and don"t leak light.AMOLED

In recent years, smartphone displays have developed far more acronyms than ever before with each different one featuring a different kind of technology. AMOLED, LCD, LED, IPS, TFT, PLS, LTPS, LTPO...the list continues to grow.

As if the different available technologies weren"t enough, component and smartphone manufacturers adopt more and more glorified names like "Super Retina XDR" and "Dynamic AMOLED", which end up increasing the potential for confusion among consumers. So let"s take a look at some of these terms used in smartphone specification sheets and decipher them.

There are many display types used in smartphones: LCD, OLED, AMOLED, Super AMOLED, TFT, IPS and a few others that are less frequently found on smartphones nowadays, like TFT-LCD. One of the most frequently found on mid-to-high range phones now is IPS-LCD. But what do these all mean?

LCD means Liquid Crystal Display, and its name refers to the array of liquid crystals illuminated by a backlight, and their ubiquity and relatively low cost make them a popular choice for smartphones and many other devices.

LCDs also tend to perform quite well in direct sunlight, as the entire display is illuminated from behind, but does suffer from potentially less accurate colour representation than displays that don"t require a backlight.

Within smartphones, you have both TFT and IPS displays. TFT stands for Thin Film Transistor, an advanced version of LCD that uses an active matrix (like the AM in AMOLED). Active matrix means that each pixel is attached to a transistor and capacitor individually.

The main advantage of TFT is its relatively low production cost and increased contrast when compared to traditional LCDs. The disadvantage of TFT LCDs is higher energy demands than some other LCDs, less impressive viewing angles and colour reproduction. It"s for these reasons, and falling costs of alternative options, that TFTs are not commonly used in smartphones anymore.Affiliate offer

IPS technology (In-Plane Switching) solves the problem that the first generation of LCD displays experience, which adopts the TN (Twisted Nematic) technique: where colour distortion occurs when you view the display from the side - an effect that continues to crop up on cheaper smartphones and tablets.

The PLS (Plane to Line Switching) standard uses an acronym that is very similar to that of IPS, and is it any wonder that its basic operation is also similar in nature? The technology, developed by Samsung Display, has the same characteristics as IPS displays - good colour reproduction and viewing angles, but a lower contrast level compared to OLED and LCD/VA displays.

According to Samsung Display, PLS panels have a lower production cost, higher brightness rates, and even superior viewing angles when compared to their rival, LG Display"s IPS panels. Ultimately, whether a PLS or IPS panel is used, it boils down to the choice of the component supplier.

This is a very common question after "LED" TVs were launched, with the short answer simply being LCD. The technology used in a LED display is liquid crystal, the difference being LEDs generating the backlight.

One of the highlights from TV makers at the CES 2021 tradeshow, mini-LED technology seemed far removed from mobile devices until Apple announced the 2021 iPad Pro. As the name implies, the technique is based on the miniaturization of the LEDs that form the backlight of the screen — which still uses an LCD panel.

Despite the improvement in terms of contrast (and potentially brightness) over traditional LCD/LED displays, LCD/mini-LEDs still divide the screen into brightness zones — over 2,500 in the case of the iPad and 2021 "QNED" TVs from LG — compared to dozens or hundreds of zones in previous-generation FALD (full-array local dimming) displays, on which the LEDs are behind the LCD panel instead of the edges.

AMOLED stands for Active Matrix Organic Light-Emitting Diode. While this may sound complicated it actually isn"t. We already encountered the active matrix in TFT LCD technology, and OLED is simply a term for another thin-film display technology.

OLED is an organic material that, as the name implies, emits light when a current is passed through it. As opposed to LCD panels, which are back-lit, OLED displays are "always off" unless the individual pixels are electrified.

This means that OLED displays have much purer blacks and consume less energy when black or darker colours are displayed on-screen. However, lighter-coloured themes on AMOLED screens use considerably more power than an LCD using the same theme. OLED screens are also more expensive to produce than LCDs.

Because the black pixels are "off" in an OLED display, the contrast ratios are also higher compared to LCD screens. AMOLED displays have a very fast refresh rate too, but on the downside are not quite as visible in direct sunlight as backlit LCDs. Screen burn-in and diode degradation (because they are organic) are other factors to consider.Affiliate offer

OLED stands for Organic Light Emitting Diode. An OLED display is comprised of thin sheets of electroluminescent material, the main benefit of which is they produce their own light, and so don"t require a backlight, cutting down on energy requirements. OLED displays are more commonly referred to as AMOLED displays when used on smartphones or TVs.

As we"ve already covered, the AM part of AMOLED stands for Active Matrix, which is different from a Passive Matrix OLED (P-OLED), though these are less common in smartphones.

Super AMOLED is the name given by Samsung to its displays that used to only be found in high-end models but have now trickled down to more modestly specced devices. Like IPS LCDs, Super AMOLED improves upon the basic AMOLED premise by integrating the touch response layer into the display itself, rather than as an extra layer on top.

As a result, Super AMOLED displays handle sunlight better than AMOLED displays and also require less power. As the name implies, Super AMOLED is simply a better version of AMOLED. It"s not all just marketing bluster either: Samsung"s displays are regularly reviewed as some of the best around.

The latest evolution of the technology has been christened "Dynamic AMOLED". Samsung didn"t go into detail about what the term means, but highlighted that panels with such identification include HDR10+ certification that supports a wider range of contrast and colours, as well as blue light reduction for improved visual comfort.

In the same vein, the term "Fluid AMOLED" used by OnePlus on its most advanced devices basically highlights the high refresh rates employed, which results in more fluid animations on the screen.Affiliate offer

Resolution describes the number of individual pixels (or points) displayed on the screen and is usually presented for phones by the number of horizontal pixels — vertical when referring to TVs and monitors. More pixels on the same display allow for more detailed images and clearer text.

Speaking of pixel density, this was one of Apple"s highlights back in 2010 during the launch of the iPhone 4. The company christened the LCD screen (LED, TFT, and IPS) used in the smartphone as "Retina Display", thanks to the high resolution of the panel used (960 by 640 pixels back then) in its 3.5-inch display.

With the iPhone 11 Pro, another term was introduced to the equation: "Super Retina XDR". Still using an OLED panel (that is supplied by Samsung Display or LG Display), the smartphone brings even higher specs in terms of contrast - with a 2,000,000:1 ratio and brightness level of 1,200 nits, which have been specially optimized for displaying content in HDR format.

As a kind of consolation prize for iPhone XR and iPhone 11 buyers, who continued relying on LCD panels, Apple classified the display used in the smartphones with a new term, "Liquid Retina". This was later applied also to the iPad Pro and iPad Air models, with the name defining screens that boast a high range and colour accuracy, at least based on the company"s standards.

TFT(Thin Film Transistor) - a type of LCD display that adopts a thin semiconductor layer deposited on the panel, which allows for active control of the colour intensity in each pixel, featuring a similar concept as that of active-matrix (AM) used in AMOLED displays. It is used in TN, IPS/PLS, VA/PVA/MVA panels, etc.

LTPS(Low Temperature PolySilicon) - a variation of the TFT that offers higher resolutions and lower power consumption compared to traditional TFT screens, based on a-Si (amorphous silicon) technology.

IGZO(Indium Gallium Zinc Oxide) - a semiconductor material used in TFT films, which also allows higher resolutions and lower power consumption, and sees action in different types of LCD screens (TN, IPS, VA) and OLED displays

LTPO(Low Temperature Polycrystaline Oxide) - a technology developed by Apple that can be used in both OLED and LCD displays, as it combines LTPS and IGZO techniques. The result? Lower power consumption. It has been used in the Apple Watch 4 and the Galaxy S21 Ultra.

Among televisions, the long-standing featured technology has always been miniLED - which consists of increasing the number of lighting zones in the backlight while still using an LCD panel. There are whispers going around that smartphones and smartwatches will be looking at incorporating microLED technology in their devices soon, with it being radically different from LCD/LED displays as it sports similar image characteristics to that of OLEDs.

As previously stated, OLED/AMOLED screens have the advantage of a varied contrast level, resulting from individual brightness control for the pixels. Another result of this is the more realistic reproduction of black, as well as low power consumption when the screen shows off dark images - which has also helped to popularize dark modes on smartphones.

In the case of LCD displays, the main advantage lies in the low manufacturing cost, with dozens of players in the market offering competitive pricing and a high production volume. Some brands have taken advantage of this feature to prioritize certain features - such as a higher refresh rate - instead of adopting an OLED panel, such as the Xiaomi Mi 10T.

Tried and trusted TFT technology works by controlling brightness in red, green and blue sub-pixels through transistors for each pixel on the screen. The pixels themselves do not produce light; instead, the screen uses a backlight for illumination.

By contrast the Active Matrix OLED (AMOLED) display requires no backlight and can light up or turn off each of their pixels independently. As the name suggests, they are made of organic material.

An AMOLED display has many other benefits which make it a superior looking display including exceptional vieiwng angles and a display that looks practically black when it is switched off.

So, why use a TFT display? Well, it is a mature technology meaning the manufacturing processes are efficient, yields high and cost much lower than AMOLED.

TFT displays also have a much longer lifespan than AMOLED displays and are available in a far greater range of standard sizes, which can be cut down to fit a space restricted enclosure for a relatively low cost adder.

Confira, a seguir, o que as siglas significam, do que as telas são feitas, quais oferecem melhor qualidade e quais consomem mais energia nos aparelhos celulares.

1 de 7 O modelo antecessor, o G5 trazia uma tela de 5,3 polegadas. (Foto: Reprodução/Techtudo) (Foto: O modelo antecessor, o G5 trazia uma tela de 5,3 polegadas. (Foto: Reprodução/Techtudo)) — Foto: TechTudo

O modelo antecessor, o G5 trazia uma tela de 5,3 polegadas. (Foto: Reprodução/Techtudo) (Foto: O modelo antecessor, o G5 trazia uma tela de 5,3 polegadas. (Foto: Reprodução/Techtudo)) — Foto: TechTudo

LCD significa “Liquid Cristal Display”, que, em português, é Tela de Cristal Líquido. Dentro das telas produzidas nessa composição existem cristais líquidos que são transparentes, mas têm sua estrutura molecular alterada quando recebem uma corrente elétrica e ficam opacos, impedindo a passagem de luz. A corrente elétrica é emitida por uma camada que se chama “backlight”, uma camada de luz que fica permanentemente acesa.

IPS significa In-Plane Switching. Em português: comutação plana. Ele é uma variação das telas LCD, que podem ser IPS ou TN (Twisted Nematic). Essas variações, a grosso modo, significam que os cristais das telas podem ser agrupados paralelamente – caso das IPS – ou bagunçados – caso das telas com TN.

Esse agrupamento em paralelo das telas IPS permite que os cristais fiquem mais perto da superfície da tela. O resultado é um ângulo de visão melhor e cores mais fiéis. O processo de manipulação das moléculas de cristal acaba encarecendo a produção.

O controle da corrente que passa para cada pixel nas telas de cristal líquido é feito por transitores, e existe um deles para cada pixel. Eles são colocados na tela através de uma película fina. Essa tecnologia se chama TFT (Thin Film Transistor, em português Fino Filme de Transitores).

O termo LED também vem do inglês e significa Light Emitter Diode ou Diodo Emissor de Luz. Essa tecnologia é bem diferente da LCD, pois usa os diodos emissores de luz no lugar dos cristais líquidos.

O LED está presente em muitos objetos, pois é um componente eletrônico que tem a propriedade de transformar energia elétrica em luz, ou seja, é útil para diversas funções, desde telas de aparelhos celulares à “luzinha” que acende quando colocamos uma bateria de câmera fotográfica para carregar. Uma grande vantagem no uso de LED é a economia de energia.

OLED significa “Organic Light-Emitting Diode”, ou Diodo Emissor de Luz Orgânica, em português. Essa é uma tecnologia que evoluiu do “LED”. Ela utiliza diodos emissores, no lugar dos cristais líquidos, mas a principal diferença entre a LCD e a OLED está no fato de que aqui não é necessário que exista uma “backlight” sempre acesa, pois os diodos emitem sua própria luz. Por isso, as telas OLED são mais finas, já que são compostas de uma camada a menos, além de consumirem menos bateria.

AMOLED significa Active-Matrix Organic Light-Emitting Diode, em português: Matriz Ativa de Diodo Orgânico Emissor de Luz. Essa tecnologia é baseada no OLED, mas desenvolvida em quatro camadas: ânodo, orgânica, cátodo e outra com circuitos. Essa sequência faz com que os pixels sejam ativados e desativados três vezes mais rápido que em outras telas. Com isso, há uma maior fluidez para exibir filmes, vídeos e jogos.

Super AMOLED é uma tecnologia desenvolvida pela Samsung que coloca uma camada sensível ao toque dentro da tela AMOLED, dispensando aquele vidro touchscreen presente em todos os displays. A novidade tornou as telas mais finas, leves e ainda mais sensíveis ao toque.

A tela Retina é apenas o nome comercial que a Apple adotou para classificar suas telas de dispositivos. Não se trata de uma tecnologia em si, mas uma classificação adotada pela fabricante. Uma tela retina é aquela que o olho humano não é capaz de perceber a “pixelação” a uma distância padrão. O display é usado nos iPhones (a partir do 4), nos iPads (a partir da segunda geração) e no MacBook Pro.

A thin-film-transistor liquid-crystal display (TFT LCD) is a variant of a liquid-crystal display that uses thin-film-transistor technologyactive matrix LCD, in contrast to passive matrix LCDs or simple, direct-driven (i.e. with segments directly connected to electronics outside the LCD) LCDs with a few segments.

In February 1957, John Wallmark of RCA filed a patent for a thin film MOSFET. Paul K. Weimer, also of RCA implemented Wallmark"s ideas and developed the thin-film transistor (TFT) in 1962, a type of MOSFET distinct from the standard bulk MOSFET. It was made with thin films of cadmium selenide and cadmium sulfide. The idea of a TFT-based liquid-crystal display (LCD) was conceived by Bernard Lechner of RCA Laboratories in 1968. In 1971, Lechner, F. J. Marlowe, E. O. Nester and J. Tults demonstrated a 2-by-18 matrix display driven by a hybrid circuit using the dynamic scattering mode of LCDs.T. Peter Brody, J. A. Asars and G. D. Dixon at Westinghouse Research Laboratories developed a CdSe (cadmium selenide) TFT, which they used to demonstrate the first CdSe thin-film-transistor liquid-crystal display (TFT LCD).active-matrix liquid-crystal display (AM LCD) using CdSe TFTs in 1974, and then Brody coined the term "active matrix" in 1975.high-resolution and high-quality electronic visual display devices use TFT-based active matrix displays.

The circuit layout process of a TFT-LCD is very similar to that of semiconductor products. However, rather than fabricating the transistors from silicon, that is formed into a crystalline silicon wafer, they are made from a thin film of amorphous silicon that is deposited on a glass panel. The silicon layer for TFT-LCDs is typically deposited using the PECVD process.

Polycrystalline silicon is sometimes used in displays requiring higher TFT performance. Examples include small high-resolution displays such as those found in projectors or viewfinders. Amorphous silicon-based TFTs are by far the most common, due to their lower production cost, whereas polycrystalline silicon TFTs are more costly and much more difficult to produce.

The twisted nematic display is one of the oldest and frequently cheapest kind of LCD display technologies available. TN displays benefit from fast pixel response times and less smearing than other LCD display technology, but suffer from poor color reproduction and limited viewing angles, especially in the vertical direction. Colors will shift, potentially to the point of completely inverting, when viewed at an angle that is not perpendicular to the display. Modern, high end consumer products have developed methods to overcome the technology"s shortcomings, such as RTC (Response Time Compensation / Overdrive) technologies. Modern TN displays can look significantly better than older TN displays from decades earlier, but overall TN has inferior viewing angles and poor color in comparison to other technology.

The transmittance of a pixel of an LCD panel typically does not change linearly with the applied voltage,sRGB standard for computer monitors requires a specific nonlinear dependence of the amount of emitted light as a function of the RGB value.

IPS has since been superseded by S-IPS (Super-IPS, Hitachi Ltd. in 1998), which has all the benefits of IPS technology with the addition of improved pixel refresh timing.

Less expensive PVA panels often use dithering and FRC, whereas super-PVA (S-PVA) panels all use at least 8 bits per color component and do not use color simulation methods.BRAVIA LCD TVs offer 10-bit and xvYCC color support, for example, the Bravia X4500 series. S-PVA also offers fast response times using modern RTC technologies.

A technology developed by Samsung is Super PLS, which bears similarities to IPS panels, has wider viewing angles, better image quality, increased brightness, and lower production costs. PLS technology debuted in the PC display market with the release of the Samsung S27A850 and S24A850 monitors in September 2011.

TFT dual-transistor pixel or cell technology is a reflective-display technology for use in very-low-power-consumption applications such as electronic shelf labels (ESL), digital watches, or metering. DTP involves adding a secondary transistor gate in the single TFT cell to maintain the display of a pixel during a period of 1s without loss of image or without degrading the TFT transistors over time. By slowing the refresh rate of the standard frequency from 60 Hz to 1 Hz, DTP claims to increase the power efficiency by multiple orders of magnitude.

Due to the very high cost of building TFT factories, there are few major OEM panel vendors for large display panels. The glass panel suppliers are as follows:

External consumer display devices like a TFT LCD feature one or more analog VGA, DVI, HDMI, or DisplayPort interface, with many featuring a selection of these interfaces. Inside external display devices there is a controller board that will convert the video signal using color mapping and image scaling usually employing the discrete cosine transform (DCT) in order to convert any video source like CVBS, VGA, DVI, HDMI, etc. into digital RGB at the native resolution of the display panel. In a laptop the graphics chip will directly produce a signal suitable for connection to the built-in TFT display. A control mechanism for the backlight is usually included on the same controller board.

The low level interface of STN, DSTN, or TFT display panels use either single ended TTL 5 V signal for older displays or TTL 3.3 V for slightly newer displays that transmits the pixel clock, horizontal sync, vertical sync, digital red, digital green, digital blue in parallel. Some models (for example the AT070TN92) also feature input/display enable, horizontal scan direction and vertical scan direction signals.

New and large (>15") TFT displays often use LVDS signaling that transmits the same contents as the parallel interface (Hsync, Vsync, RGB) but will put control and RGB bits into a number of serial transmission lines synchronized to a clock whose rate is equal to the pixel rate. LVDS transmits seven bits per clock per data line, with six bits being data and one bit used to signal if the other six bits need to be inverted in order to maintain DC balance. Low-cost TFT displays often have three data lines and therefore only directly support 18 bits per pixel. Upscale displays have four or five data lines to support 24 bits per pixel (truecolor) or 30 bits per pixel respectively. Panel manufacturers are slowly replacing LVDS with Internal DisplayPort and Embedded DisplayPort, which allow sixfold reduction of the number of differential pairs.

Kawamoto, H. (2012). "The Inventors of TFT Active-Matrix LCD Receive the 2011 IEEE Nishizawa Medal". Journal of Display Technology. 8 (1): 3–4. Bibcode:2012JDisT...8....3K. doi:10.1109/JDT.2011.2177740. ISSN 1551-319X.

K. H. Lee; H. Y. Kim; K. H. Park; S. J. Jang; I. C. Park & J. Y. Lee (June 2006). "A Novel Outdoor Readability of Portable TFT-LCD with AFFS Technology". SID Symposium Digest of Technical Papers. AIP. 37 (1): 1079–82. doi:10.1889/1.2433159. S2CID 129569963.

Smartphone displays or displays, in general, have grown leaps and bounds over the years. There was a time when no matter how expensive a phone you would have, it would have the same display technology, that would be found in a mid-range phone - a basic LCD screen. Yes, the resolution and quality would be different, but the underlying technology would be the same.

OLED panels have been around since the 2000s when it was introduced in a car stereo system. Later, when it got a little mainstream, we saw it in some phones, but because it wasn’t cost-effective and did not look anything like the OLEDs of today, we soon got rid of them. After tons of improvements and development, it came to rule the best TVs that money could buy. Now, the display technology is finding its way back into our phones and personal devices, albeit in three distinct forms - OLED, AMOLED & P-OLED.

OLED or organic light-emitting diode is a display technology that runs a current through organic diodes on a glass substrate to create an image. The light-emitting pixels of an OLED display emits blue and yellow light. The yellow and blue light combine to form white light, which then passes through red, green, and blue subpixels in order to produce a single pixel. Unlike LCDs, OLED Panels do not need a separate backlight. This is one of the many reasons, why OLED displays consume much less energy, especially when they’re showing a dark image.

OLED panels, also have a much better response time, which, basically means, that each pixel responds to signal change much quicker than a traditional LCD. This is the refresh rate that manufacturers refer to. It basically means that an OLED panel will be able to change colours 120 times in a second. This gives the pictures that you watch a much more lucid, and smooth appeal.

OLED panels also take up a lot less space than your LCD panels, because they don’t use a panel for the backlight. This also makes them cheaper to make. And because they don’t need a backlight to work, OLED displays can be transparent at times. This has allowed manufacturers to develop in-display fingerprint readers and under-display cameras.

OLED panels are cheaper to manufacture, but because they are very thin, and fragile, in order to make a proper display out of it, as in a TV or a mobile phone, you need to use reinforced glass or metal frames. Also, at peak brightness, OLEDs draw more power than a regular LCD.

If you’re buying a premium smartphone with an OLED display, chances are, you’re actually buying an AMOLED Display. AMOLED is an acronym for "Active Matrix OLED," and modern OLED displays found in consumer electronics use an active matrix as opposed to passive matrices found in older OLED displays.

The active matrix or the thin-film transistor arrays used in AMOLED displays are more power efficient than most old OLED displays. Samsung dominates the market of AMOLED displays and has named the best of the best they produce as the Super AMOLED display. AMOLED displays usually combine the benefit of P-OLED displays and your regular OLED displays. They are very durable and versatile, and hence, tend to cost more.

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The reason many phones use samsung galaxy a30 lcd amoled rather than LED or AMOLED screens is because of their relatively cheaper cost. Additionally, smartphone lcd screens also use less power than LED or AMOLED screens and therefore help conserve battery power. With today"s powerful apps, this can be a real advantage for those who do not like to or do not have the ability to charge their phone frequently.

When looking for samsung galaxy a30 lcd amoled, make sure you check the specifications of the phone model for which you want a replacement screen. While many manufacturers do use the same screen, the lcd screen assembly may be different between models. Ask our suppliers for the specifics before making a purchase and they will be happy to help you out. Many are also downgrading to an aftermarket lcd screen from a led screen to extend the battery life of their phones.

TFT is an abbreviation for Thin Film Transistor, a flat panel display used to improve the operation and utility of LCD screens. In order to portray an appearance to the audience, a liquid crystal display (LCD) utilizes a crystalline-filled fluid to modify rear lighting polarized origin through the use of an electromagnetic force among two relatively thin metal wires such as indium oxide (ITO). However, color TFT displays are associated with this method, which can be employed in both divided and pixelated display systems.

With motion pictures displayed on an LCD, the intrinsic sluggish rate of increase between liquid phases over a significant number of pixel components can be an issue due to capacitance impacts, which can create a blurring of the visuals. Placing a high-velocity LCD control device inside the formation of a thin-film transistor immediately next to the cell component just on a glass screen, the issue of LCD picture speed may be substantially improved, and image blur can be eliminated for all useful purposes entirely.

Organic light-emitting diodes (AMOLEDs) are a type of flat light-emitting advanced technologies that are created by interspersing a succession of organic thin sheets over two conducting conductors. An electrical charge causes a brilliant light to be produced when the current flows. AMOLED displays are light-emitting screens that do not require a backlight, making them thinner and more energy-efficient than liquid crystal displays (LCDs) (which will need a white backlight).

AMOLED displays are not only thin and fuel-intensive, but they also deliver the highest image quality available, so they can be made translucent, elastic, bendable, or even rollable and stretchy in the future, allowing for a variety of applications. AMOLEDs are a revolutionary technology in terms of display devices! It is possible to create an AMOLED by sandwiching a sequence of thin films across phase conductors. Electric charge causes a brilliant light to be emitted when the current flows through the coil.

Half-Life has been expanded. TFT displays have a far longer half-life than its LED equivalents, and they are available in a number of sizes, which might have an effect on the device"s half-life based on the phone"s usage as well as other variables. Touch panels for TFT screens can be either resistant or capacitance in nature.

Backlighting is unnecessary for AMOLEDs. LCDs produce images by selectively blocking parts of the illumination, whereas AMOLEDs produce light. AMOLEDs utilize less energy than LCDs since they don"t need backlighting. This is critical for battery-powered devices such as phones.

While AMOLED light-emitting sheets are lightweight, the substrate can also be elastic rather than stiff. AMOLED films are not limited to glass-like LEDs and LCDs.

AMOLEDs offer 170-degree ranges of vision. LCDs operate by obscuring the light. Hence they have intrinsic viewing obstacles. In addition, AMOLEDs have a substantially wider viewing spectrum.

AMOLEDs outperform LEDs. Since AMOLED organic coatings are less than LED inorganic crystal levels, AMOLED conducting and particle emitters layers can just be multi-layered. Also, LEDs and LCDs need glass backing, which absorbs light. AMOLEDs don"t need it.

AMOLEDs seem to be simpler to implement and larger. AMOLEDs are constructed of polymers and may be produced into big sheets. It takes a lot of extra liquid crystals to build and set down.

While red and green AMOLED sheets have a greater lifespan (46,000 to 230,000 hours), azure compounds have significantly shorter longevity (up to roughly 14,000 hours).

Due to the fact that AMOLED displays inherently emit illumination, they do not need a backlight when used on a monitor screen. Conversely, LCDs require backlights since the liquid crystals themselves are incapable of producing light under their own. Direct light emission from AMOLED displays also allows for the developing of lightweight display devices than others using TFT LCDs.

LCD displays have a higher brightness than AMOLED panels. This is owing to the LCD"s usage of led backlight, which may provide a brilliant illumination of the entire display. Despite the fact that AMOLEDs produce high levels of brilliance from their illumination, they will never be able to match the intensity of LCD lighting.

LCD screens use less power than AMOLED displays, which provides a slight advantage. The amount of energy consumed by AMOLED displays is dependent on the intensity of the screen. Lowered luminance results in lower energy usage, however, it might not be the best solution because the contrast would suffer as a result of the decreased brightness. In some situations, such as when to use an AMOLED device in direct sunlight, it is not an optimal situation.

However, the backlit keys of TFT displays account for the majority of their power usage. TFT screens" efficiency is considerably improved when the backlight is set to a lesser brightness level than the default setting. For example, replacing the light of an LCD TV with just an Led flash will have no effect on the image quality, but will result in lower power usage than replacing the light of an AMOLED TV.

With the exception of phones, numerous other technologies make use of displays to allow customers to engage in direct communication with them. To determine whether or not TFT LCD will be able to withstand the development of AMOLED innovation, we should first review the benefits of LCD technology. The backlighting quality ensures that whites are strong and brightness is superb but will deplete a battery much more quickly than just an AMOLED display. Furthermore, the cost of LCD screens is a considerable consideration. In addition to being less expensive and more easily accessible, they are produced in standard industry sizes, allowing them to be purchased for innovative products with relative ease.

Alguma vez você já se perguntou quais são as diferenças entre essas nomenclaturas tão citadas em reviews ou anúncios? Sabia que suas peculiaridades e construções podem mudar não só a qualidade da imagem como também a duração de bateria? Leia o artigo e entenda quais as diferenças entre as telas de smartphones.

O popular e antigo Display de Cristal Líquido (ou “Liquid Crystal Display”, formando a sigla) é a tecnologia mais básica. De forma sucinta, as telas LCD são compostas por substâncias que mudam sua estrutura molecular quando recebem diferentes correntes elétricas.

Este efeito define a opacidade dessa substância. Tornando-a opaca para impedir a passagem de luz e definir cores, ao mesmo tempo que existe um backlight constante iluminando a tela. A consequência dessa luz constante é a reprodução não muito fiel da cor preta, se assemelhando ao cinza.

Com o LCD também há o uso de TFT, muitas vezes considerado um tipo diferente de display. O Thin Film Transistor (TFT) é o responsável por controlar a corrente que passa pela substância da tela, portanto, um transistor para cada pixel.

No entanto, o problema da cor preta “acinzentada” ainda está presente e, com isso, o contraste ainda não é o melhor. O Moto G7, embora recente, ainda utiliza telas IPS LCD, assim como boa parte da linha G da Motorola.

O LCD PLS é uma tecnologia proprietária da Samsung usada na linha J, de 2016. Basicamente, o LCD PLS é uma evolução do LCD IPS e aprimora a qualidade de imagem e brilho.

Ademais, a tecnologia é barata e proporciona economia energética, o que ajuda na implementação dessas telas em smartphones de entrada. Os problemas? Tempo de resposta mais lento e ausência de Gorilla Glass, tornando-a muito frágil — obrigando a compra de uma película.

Como o nome já diz, as telas OLED são uma evolução dos displays com iluminação por LED. No lugar dos cristais líquidos do LCD, o OLED conta com diodos orgânicos. Esse material é um polímero orgânico que pode ser colocado sem encapsulamento.

A ausência da iluminação constante da backlight também favorece a autonomia de bateria. Ademais, uma das razões da popularização do modo noturno (ou “dark mode”) é devido a adoção massiva dessa tecnologia. Quando otimizado, telas tomadas por tons pretos “absolutos” economizam energia — além de serem mais confortáveis durante a noite.

Qual o problema dessa tecnologia? Um efeito desagradável de rastro na imagem e uma vida útil consideravelmente inferior. Com o tempo, as telas OLED passam a apresentar “pixels atrasados” exibindo imagens fixas de menus e ícones que ficaram muito tempo em exibição. O famoso Ghosting.

A tecnologiaAMOLED é uma junção dos polímeros do OLED com o TFT presente nas telas LCD. A sigla vem de Active Matrix Organic Light-Emitting Diode (ou “Matriz ativa de Diodos Orgânicos Emissores de Luz", em português).

O TFT é inserido entre as camadas que compõem o display e serve primariamente para diminuir o delay entre as imagens, solucionando finalmente os rastros antes criticados.

Há, também, a tecnologia Super AMOLED, da Samsung. Neste caso, a evolução do AMOLED possibilitou a criação de displays flexíveis e diminuindo significativamente o tempo de resposta dessas telas, assim como a grossura das camadas.

Um exemplo de dispositivo que conta com o Super AMOLED é o Samsung Galaxy A8, o intermediário focado em custo-benefício da sul-coreana. Além desse, o Moto Z3 Play, é um representante da tecnologia pela Motorola.

A Apple se apropriou desse conceito para suas telas — que são AMOLED — e divulga-as dessa forma evitando associar os iPhones à Samsung, atual fornecedora dessas telas. Atualmente, a Apple está tentando superar esse "monopólio" da sul-coreana optando por tecnologias concorrentes.

Se desconsiderarmos o valor de cada display e avaliarmos somente a qualidade da imagem e outros benefícios, é indiscutível a vitória do AMOLED, assim como Super AMOLED.

A precisão nas cores, qualidade do contraste, brilho e autonomia de bateria colocam essa tela com grande vantagem sobre as outras tecnologias. No entanto, seu custo de produção é um pouco maior; embora isso já esteja bem mais acessível atualmente.

AMOLED (Active Matrix Organic Light Emitting Diode) and TFT (Thin Film Transistor) are the two types of displays that are used in mobile phones. TFT is actually a process of producing the displays and is used even by AMOLED but for most purposes, TFT is used to refer to LCD displays. The difference between them is the material as AMOLED uses organicmaterials, mainly carbon, while TFT does not.

There are differences between the two that are quite tangible. For starters, AMOLED generates its own light rather than relying on a backlight like a TFT-LCD does. This consequently means that AMOLED displays are much thinner than LCD displays; due to the absence of a backlight. It also results in much better colors than a TFT is capable of producing. As each pixel’s color and light intensity can be regulated independently and no light seeps from adjacent pixels. A side by side comparison of the two displays with the same picture should confirm this. Another effect of the lack of a backlight is the much lower power consumption of the device. This is very desirable when it comes to mobile phones where every single feature competes for the limited capacity of the battery. As the screen is on 90% of the time that the device is being used, it is very good that AMOLED displays consume less. Just how much of a difference is not very fixed though as it really depends on the color and intensity of the image. Having a black background with white text consumes much less energy than having black text on a white background.

The biggest disadvantage that AMOLED has is the shorter lifespan of the screen compared to TFT. Each pixel in the display degrades with each second that it is lit and even more so the brighter it is.  Despite improvements on the lifetime of AMOLED displays, AMOLED still only lasts a fraction of the lifetime of a TFT display. With that said, an AMOLED display is able to outlast the usable lifetime of the device before parts of it start to degrade.

The main hindrance to the massive adaptation of AMOLED is the low production numbers. TFT has been in production for much longer and the infrastructure is already there to meet the demands.

Atualmente, cada fabricante de smartphone tem um tipo de tecnologia diferente empregadas em suas telas. Com isso, surgem várias siglas que acabam confundindo muito os usuários e gerando discussões sem sentido. Mas, por incrível que pareça, é bem simples entender o que é uma coisa e o que é outra. Nesse artigo, iremos tentar sanar essas dúvidas.

A situação recente mais engraçada envolvendo as telas, foi o caso da Motorola. Quando ela deixou de usar displays AMOLED, muita gente reclamou. Pior foi o marketing da empresa, que fez ainda mais confusão na cabeça dos usuários. Os novos smartphones anunciados viriam com uma tela “TFT”, o que foi motivo para muita discussão, afinal a Motorola não quis nem usar uma tela IPS, já queteoricamente o IPS é melhor que o TFT. Será isso mesmo? Não, não é assim que funciona. Vamos partir do começo.

Antes de qualquer coisa, é necessário entendermos o que significam todas essas siglas, ou pelo algumas delas. Vou explicar de um modo simples sem se adentrar muito em detalhes técnicos. Para começar, vamos com a mais básicas de todas:o LCD. LCD significa Liquid Crystal Display, ou no bom e velho português seria Display de cristal liquido. Basicamente falando, dentro de uma tela de LCD existem cristais liquidos, como sugere o nome. Eles são substâncias que tem sua estrutura molecular alterada quando recebem determinada corrente elétrica. No seu estado normal é transparente e quando recebem corrente elétrica tornam-se opacas, impedindo a passagem da luz. Essa luz é fixa e atrás de todo o LCD existe uma luz que fica constantemente ligada e é chamada de backlight.

Mas e as cores? Para chegar nas cores, a tecnologia evoluiu e as telas de LCD ganharam mais camadas. Além dos dois estados primários, transparente ou opaco, o LCD possui agora tons intermediários que mudam de acordo com o nível de corrente que passa por ele. Eles estão dentro da sua tela, que possui os “pixels” que formam o padrão RGB (cores vermelha, verde e azul). Cada uma dessas cores produzem 256 tonalidades, sendo assim, um pixel é capaz de produzir cerca de 16,77 milhões de cores (256³)! Quem controla essa corrente que entra em cada pixel são os transistores (S no gráfico), sendo um transistor para cada pixel. Esses transistores são colocados na tela por meio de uma fina película (ou filme). Sabem como chama essa tecnologia? TFT (Thin film transistor).

Então agora vocês já sabem: TFT é apenas o tipo de tecnologia para controlar os transistores, e não de uma tela em si. Mas e o IPS? É outro tipo de tela?

Ok, agora sabemos que para a luz passar pelos cristais líquidos e formar os pixels, é necessário aplicar uma corrente elétrica nele e ao fazer isso ele muda seu estado molecular e se torna opaco. Se a luz não passa, o pixel fica preto ou outro tom dependendo do estado do “opaco”. Esse processo foi criado através de um processo chamado Twisted Nematic, representado pela sigla "TN". Quando a energia é injetada no cristal, ele se distorce, permitindo a passagem de luz. Mas o problema era que os cristais nunca ficavam exatamente na perpendicular, como na imagem da Sharp. Na realidade, eles era mais "rebeldes" e ficavam bagunçados. Essa bagunça gera cores não muito fiéis ao real e tem o temido problema do ângulo de visão: quanto mais “de lado” você fica em relação a tela, mais distorcida ficavam as cores. Abaixo um gráfico mostrando como ficam na realidade posicionados os cristais.

Nas telas de IPS, devido a formação dos cristais que estão mais perto da superfície da tela, automaticamente o ângulo de visão acaba melhorando e a reprodução de cores fica mais fiel. Obviamente, o processo de manipulação dessas moléculas é mais caro, por isso não se vêem muitos smartphones de entrada com telas IPS. Abaixo uma ilustração da Sharp.

Assim chegamos a conclusão que não existe tela IPS melhor que TFT, pois uma tela de IPS é uma tela de TFT. O conceito certo seria: o IPS é melhor que uma tela PN. Mas uma tela PN, no geral, é bem inferior e com péssimo ângulo de visão (lembram do Xperia Z1?). A Sony usava inexplicavelmente telas PN. Já os novos aparelhos da Motorola possuem excelente ângulo de visão e fidelidade nas cores, ou seja, só de olharmos já podemos dizer que se tratam de telas de IPS, mesmo isso não estando implícito na caixa.

Mas o marketing da Motorola apenas omitiu o “IPS” e deixou somente TFT nos anúncios, simplesmente para evitar comparações com outras marcas como a LG, que ostenta IPS em tudo o que pode. Mas ela não está mentindo, afinal tela com IPS não deixa de ser uma tela de TFT, não é verdade?

Para fechar o assunto IPS, temos ainda o LG G4, que trouxe a tela Quantum Display. Muitos pensam que é só mais marketing da empresa, mas não é. A LG realmente evoluiu a tela de IPS. Basicamente, a maior diferença está no modo como a luz passa pelos cristais.

A cor do TFT IPS surge quando a luz branca de fundo passa pelos pixels e seus filtros RGB (vermelho, verde e azul). Na nova tela Quantum da LG, esses filtros são desnecessários. Em seu lugar, existe um filme composto por cristais nanoscópicos (também conhecidos por pontos quânticos) que emitem luz. Variações minúsculas no tamanho desses cristais fazem com que apenas luzes de cores específicas passem pela tela.

Embora ainda exista retroiluminação, ela é menos intensa que as telas TFT comuns, gerando assim economia energética, embora, tecnicamente, seja pouca economia para impactar no gasto da bateria sensivelmente. Como não há um filtro entre a luz de fundo (backlight) e o pixel, o resultado é um melhor contraste na tela. Outra consequência do uso dos pontos quânticos que se converte em benefícios para o usuário é a fidelidade de cores. Então, não é mentira quando usuários falam que a tela do LG G4 é bem próxima em constraste das telas de AMOLED.

As telas de OLED (Diodos Orgânicos Emissores de Luz) são antigas e uma evolução da tela de LED. Não vou entrar em muitos detalhes, mas a principal diferença é que telas de OLED não utilizam cristais liquidos como a tela de LCD. Ao invés de cristais, são utilizados Diodos Orgânicos. Eles possuem material orgânico (polímeros) na camada ativa e que são compostos líquidos, podendo ser colocados em qualquer superfície e não precisam ser encapsulados individualmente como nas telas LEDs.

O funcionamento da OLED e AMOLED é basicamente o mesmo e em muito parecido com o LCD. Do mesmo modo, os Diodos são colocados entre duas placas de vidro, chamado de polarizadores. Mas a principal diferença está no consumo de energia. Lembram que na tela LCD os cristais ficam transparentes ou opacos para deixar passar a luz nos pixels, e essa luz chamada backlight fica 100% do tempo acessa? Com os diodos orgânicos isso não acontece. Além de serem modificados organicamente, similarmente aos cristais, eles também emitem sua própria luz, ou seja, não é necessária a camadabacklight, o que gera economia de energia. Sem a luz para se "misturar" com as cores, os diodos produzem cores com mais fidelidade e contraste. Lembram que o preto das telas de AMOLED são mais intensos? Lembram quando seu professor disse que preto é ausência de luz? Nas telas de AMOLED, preto são diodos desligados, ou seja, é ausência completa de luz. No LCD, os cristais nunca ficam totalmente pretos e sim mais opacos, já que o backlight continua ligado no fundo dos cristais. Além disso, com uma camada a menos, as telas de OLED e AMOLED são mais finas que as de LCD.

Mas qual a diferença do AMOLED e OLED? O termo AMOLED vem de Active Matrix Organic Light-Emitting Diode (Matriz Ativa de Diodos Orgânicos Emissores de Luz). A diferença das telas AMOLED consiste na presença de uma película fina de transistores. Agora a parte legal: sabem qual o nome dessa película? TFT, sim, o mesmo TFT usado nas telas IPS! Ou seja, uma tela AMOLED pode ser chamada de TFT AMOLED!

Para fechar, ainda temos a Samsung e suas telas Super AMOLED. Em 2010, não contente com as telas AMOLED, a Samung resolveu melhorar a tecnologia. O Super de suas telas não é só marketing, realmente as telas da empresa sul-coreana são uma evolução.

Basicamente, eles colocaram a camada sensível ao toque (touchscreen) dentro da própria tela de AMOLED. Desse modo, ela removeu o vidro touchscreen que as telas LCD e AMOLED possuem. Com isso as telas ficaram ainda mais finas, leves e mais sensíveis ao toque. Não é por acaso que os modelos top de linha da Samsung sempre ganham os comparativos de melhores diplays do mercado. Vejam na imagem abaixo a diferença na espessura entre uma tela Super AMOLED e uma de LCD TFT.

Resumo da ópera: TFT (thin film transistor) é só o tipo de transistor utilizado em todas as telas atualmente. Ou seja, IPS, AMOLED, Super AMOLED, LED e OLED no fim das contas são todas telas TFT.

Mas o que todos querem saber é qual a melhor tela: LCD TFT ou TFT AMOLED. Das telas LCD não há dúvida que a que mais se destaca - e também é a mais usada em smartphones mais caros - é o TFT IPS. Se levarmos em consideração a tela do G4 Quantum Display, a qualidade é ainda melhor. Agora, escolher a melhor tela é bem relativo.

Em uma tela LCD, (IPS no caso), você vai encontrar imagens mais suaves e próximas da realidade. Porém, nem todo mundo tem o olho sensível a esse ponto. A maioria das pessoas irá reparar no contraste das cores, se são mais "vivas" ou não. Por isso a preferência da maioria é pela telas de AMOLED. Como o preto é mais real, automaticamente o constraste será maior, afinal o constraste é a diferença de cores claras que são saturadas com branco e cores escuras que são saturadas com preto.

Por isso telas de AMOLED são mais brilhantes e com cores mais saturadas e chamativas. Por outro lado, no mundo real não existe tanta saturação de cores assim, por isso, quem tem olhos mais sensíveis acaba preferindo o LCD, por criar cores mais próximas da realidade.

Mas de uma coisa não há dúvida: a Samsung é quem fabrica as melhores telas atualmente. As telas dos seus tops de linha, principalmente a linha Note, é sempre eleita a melhor em todos os comparativos de sites especializados da área. E mesmo olhando frente a frente com elas, é difícil falar o contrário. Até no "problema" do constraste exagerado, a Samsung oferece opções de software em seus smartphones para corrigir parcialmente a falha. Mas a eterna rival e compatriota LG também investe muito em suas telas IPS, tanto que o Quantum Display consegue excelentes resultados, deixando suas telas com constraste próximo as de AMOLED, custando mais barato.