ltps tft display vs ips in stock

If you want to buy a new monitor, you might wonder what kind of display technologies I should choose. In today’s market, there are two main types of computer monitors: TFT LCD monitors & IPS monitors.

The word TFT means Thin Film Transistor. It is the technology that is used in LCD displays.  We have additional resources if you would like to learn more about what is a TFT Display. This type of LCDs is also categorically referred to as an active-matrix LCD.

These LCDs can hold back some pixels while using other pixels so the LCD screen will be using a very minimum amount of energy to function (to modify the liquid crystal molecules between two electrodes). TFT LCDs have capacitors and transistors. These two elements play a key part in ensuring that the TFT display monitor functions by using a very small amount of energy while still generating vibrant, consistent images.

Industry nomenclature: TFT LCD panels or TFT screens can also be referred to as TN (Twisted Nematic) Type TFT displays or TN panels, or TN screen technology.

IPS (in-plane-switching) technology is like an improvement on the traditional TFT LCD display module in the sense that it has the same basic structure, but has more enhanced features and more widespread usability.

Both TFT display and IPS display are active-matrix displays, neither can’t emit light on their own like OLED displays and have to be used with a back-light of white bright light to generate the picture. Newer panels utilize LED backlight (light-emitting diodes) to generate their light hence utilizing less power and requiring less depth by design. Neither TFT display nor IPS display can produce color, there is a layer of RGB (red, green, blue) color filter in each LCD pixels to produce the color consumers see. If you use a magnifier to inspect your monitor, you will see RGB color in each pixel. With an on/off switch and different level of brightness RGB, we can get many colors.

Winner. IPS TFT screens have around 0.3 milliseconds response time while TN TFT screens responds around 10 milliseconds which makes the latter unsuitable for gaming

Winner. the images that IPS displays create are much more pristine and original than that of the TFT screen. IPS displays do this by making the pixels function in a parallel way. Because of such placing, the pixels can reflect light in a better way, and because of that, you get a better image within the display.

As the display screen made with IPS technology is mostly wide-set, it ensures that the aspect ratio of the screen would be wider. This ensures better visibility and a more realistic viewing experience with a stable effect.

Winner. While the TFT LCD has around 15% more power consumption vs IPS LCD, IPS has a lower transmittance which forces IPS displays to consume more power via backlights. TFT LCD helps battery life.

Normally, high-end products, such as Apple Mac computer monitors and Samsung mobile phones, generally use IPS panels. Some high-end TV and mobile phones even use AMOLED (Active Matrix Organic Light Emitting Diodes) displays. This cutting edge technology provides even better color reproduction, clear image quality, better color gamut, less power consumption when compared to LCD technology.

This kind of touch technology was first introduced by Steve Jobs in the first-generation iPhone. Of course, a TFT LCD display can always meet the basic needs at the most efficient price. An IPS display can make your monitor standing out.

The world of smartphones has been busy for the past few months. There have been numerous revolutionary launches with groundbreaking innovations that have the capacity to change the course of the smartphone industry. But the most important attribute of a smartphone is the display, which has been the focus for all prominent players in the mobile phone industry this year.

Samsung came up with its unique 18:5:9 AMOLED display for the Galaxy S8. LG picked up its old trusted IPS LCD unit for the G6’s display. These display units have been familiar to the usual Indian smartphone buyer. Honor, on the other hand, has just unveiled the new Honor 8 Pro for the Indian market that ships with an LTPS LCD display. This has led to wonder how exactly is this technology different from the existing ones and what benefits does it give Honor to craft its flagship smartphone with. Well, let’s find out.

The LCD technology brought in the era of thin displays to screens, making the smartphone possible in the current world. LCD displays are power efficient and work on the principle of blocking light. The liquid crystal in the display unit uses some kind of a backlight, generally a LED backlight or a reflector, to make the picture visible to the viewer. There are two kinds of LCD units – passive matrix LCD that requires more power and the superior active matrix LCD unit, known to people as Thin Film Transistor (TFT) that draws less power.

The early LCD technology couldn’t maintain the colour for wide angle viewing, which led to the development of the In-Plane Switching (IPS) LCD panel. IPS panel arranges and switches the orientation of the liquid crystal molecules of standard LCD display between the glass substrates. This helps it to enhance viewing angles and improve colour reproduction as well. IPS LCD technology is responsible for accelerating the growth of the smartphone market and is the go-to display technology for prominent manufacturers.

The standard LCD display uses amorphous Silicon as the liquid for the display unit as it can be assembled into complex high-current driver circuits. This though restricts the display resolution and adds to overall device temperatures. Therefore, development of the technology led to replacing the amorphous Silicon with Polycrystalline Silicon, which boosted the screen resolution and maintains low temperatures. The larger and more uniform grains of polysilicon allow faster electron movement, resulting in higher resolution and higher refresh rates. It also was found to be cheaper to manufacture due to lower cost of certain key substrates. Therefore, the Low-Temperature PolySilicon (LTPS) LCD screen helps provide larger pixel densities, lower power consumption that standard LCD and controlled temperature ranges.

The AMOLED display technology is in a completely different league. It doesn’t bother with any liquid mechanism or complex grid structures. The panel uses an array of tiny LEDs placed on TFT modules. These LEDs have an organic construction that directly emits light and minimises its loss by eradicating certain filters. Since LEDs are physically different units, they can be asked to switch on and off as per the requirement of the display to form a picture. This is known as the Active Matrix system. Hence, an Active Matrix Organic Light Emitting Diode (AMOLED) display can produce deeper blacks by switching off individual LED pixels, resulting in high contrast pictures.

The honest answer is that it depends on the requirement of the user. If you want accurate colours from your display while wanting it to retain its vibrancy for a longer period of time, then any of the two LCD screens are the ideal choice. LTPS LCD display can provide higher picture resolution but deteriorates faster than standard IPS LCD display over time.

An AMOLED display will provide high contrast pictures any time but it too has the tendency to deteriorate faster than LCD panels. Therefore, if you are after greater picture quality, choose LTPS LCD or else settle for AMOLED for a vivid contrast picture experience.

IPS (In-Plane Switching) lcd is still a type of TFT LCD, IPS TFT is also called SFT LCD (supper fine tft ),different to regular tft in TN (Twisted Nematic) mode, theIPS LCD liquid crystal elements inside the tft lcd cell, they are arrayed in plane inside the lcd cell when power off, so the light can not transmit it via theIPS lcdwhen power off, When power on, the liquid crystal elements inside the IPS tft would switch in a small angle, then the light would go through the IPS lcd display, then the display on since light go through the IPS display, the switching angle is related to the input power, the switch angle is related to the input power value of IPS LCD, the more switch angle, the more light would transmit the IPS LCD, we call it negative display mode.

The regular tft lcd, it is a-si TN (Twisted Nematic) tft lcd, its liquid crystal elements are arrayed in vertical type, the light could transmit the regularTFT LCDwhen power off. When power on, the liquid crystal twist in some angle, then it block the light transmit the tft lcd, then make the display elements display on by this way, the liquid crystal twist angle is also related to the input power, the more twist angle, the more light would be blocked by the tft lcd, it is tft lcd working mode.

A TFT lcd display is vivid and colorful than a common monochrome lcd display. TFT refreshes more quickly response than a monochrome LCD display and shows motion more smoothly. TFT displays use more electricity in driving than monochrome LCD screens, so they not only cost more in the first place, but they are also more expensive to drive tft lcd screen.The two most common types of TFT LCDs are IPS and TN displays.

Now so many mobile phone screen technology, I"d like to introduce various display panel and screen technology, to make everybody can distinguish them easily.

At present there are only two mobile phone screen classification, TFT - LCD and OLED, They respectively represent the passive and active display screen.Passive panel need the support of the back light, Active panel can self-illuminate and need no back light.

CGS(CG-silicon)--It"s a variant of the LTPS process using laser annealing to get larger domains,Under the condition of same backlight brightness, the screen brightness is higher, and in same screen brightness, can use lower brightness of the backlight to save electricity. In addition it"s more thinner, with better resistance pf crash and distortion.

The demand for the best visual experience has grown higher over recent years. Everyone wants the best in the class display to their smartphones to view the high-definition magic their phone provides. This demand for better display has risen recently as big brands like iPhone and Samsung have added some absolutely gorgeous displays to their smartphones.

The major battle begins here. The two competitors of the game are LTPS LCD and AMOLED. These are state of the art displays and people often find themselves comparing these two displays. People are wondering about the result for LTPS vs AMOLED.

LTPS and AMOLED comparison has always been an interesting debate. Potential buyers of smartphones keep comparing the difference between LTPS and AMOLED. There is a complete LTPS and AMOLED comparison below which outlines the difference between these two types:

LTPS stands for Low-Temperature PolySilicon. This type of display provides a faster and more integrated display compared to a standard LCD. The LTPS display provides a better picture quality for the user and some people consider it to be more true to life. It provides larger picture densities and is also lower on power consumption as it does not light up every pixel individually. People can expect a higher picture resolution in their displays.

AMOLED stands for Active Matrix Organic Light Emitting Diode. AMOLED displays are completely different. They use an array of LEDs that help light up every pixel individually, so the only area of the display that is in use, only those pixels light up and the others stay shut. This helps provide a higher contrast to the image with very deep blacks. The display also helps in power consumption as every pixel draws power individually.

There is no actual winner to this debate, just like the console war or the Android vs Apple debate. The choice depends completely on the user and their tastes and preferences. If the users want a better picture resolution in their display, they can go with LTPS LCD and if the user wants a higher contrast picture to their display then they can go with AMOLED. Both displays deteriorate faster than standard LCD screens. Apple is known to use LCD panels in their smartphones and Samsung is known to use AMOLED ones. These are the points that can help the user make an informed decision about which display they would want to go with.

LTPS or low-temperature polysilicon is a silicon-based material used in semiconductor components and devices. In liquid crystal or LCD technology, it is specifically a backplane technology and a major component of thin-film transistors or TFT responsible for turning individual pixels on and off.

Conventional LCDs use amorphous silicon. However, one of the reasons why manufacturers are switching to low-temperature polysilicon is overall superiority. More specifically, LTPS LCD has inherent advantages over a-Si LCD and even IGZO LCD.

A notable advantage of LTPS LCD is that it has larger and more uniform grains of polysilicon. Note that a-Si LCD has random-sized grains. Hence, in low-temperature polysilicon, electrons flow 100 times faster than in amorphous silicon. IGZO, on the other hand, has 30 to 40 times more electron mobility than a-SI. Thus, it is in this regard that LTPS remains inherently better than both amorphous silicon and indium gallium zinc oxide.

The faster electron flow or better electron mobility translates further to higher resolutions and faster pixel response time. Hence, manufacturers can produce LCDs with higher pixel density with low-temperature polysilicon than a-SI while improving the refresh rates of advanced LCD technologies such as in-plane switching or IPS LCD.

A probable application of LTPS is in consumer electronic devices with soft and flexible displays. Furthermore, its capacity to support high resolution and stable reliability make this technology an ideal candidate for portable displays over other semiconductor materials. Note that flexibility is a critical issue in manufacturing small-sized portable displays.

Two of the major drawbacks of LTPS is that it has a complicated manufacturing process and higher material costs than a-Si. Thus, backplane technology based on this material is more expensive to produce. A 1080p low-temperature polysilicon TFT LCD would cost about 12 to 14 percent more than an amorphous silicon TFT LCD.

Another disadvantage is that LCDs based on this technology have a shorter lifespan than those based on a-Si and IGZO. The quality of LTPS LCD decreases over time due to overheating. Note that turning transistors on produces heat. Low-temperature polysilicon is susceptible to overheating. High temperature degrades the entire thin-film transistor by breaking the silicon-hydrogen bonds on the material.

Note that IGZO has an electron mobility nearly as high as low-temperature polysilicon. However, it has a lower leakage current. Both LTPS and a-SI have high leakage current that necessitates continuous pixel refresh when displaying a still image. IGZO displays retain their active state longer than the two.

It is important to highlight the fact that low-temperature polysilicon or LTPS is a backplane technology that can be applied not only in LCD but also in other display technologies. For starters, it has been used to improve the performance and quality of in-plane switching or IPS LCD. It is also applicable in organic light-emitting diode or OLED technology. Researchers and manufacturers are also opting to use this material for use in emerging display technologies to include mini-LED LCDs and microLED display technology.

A hybrid between IGZO and LTPS is possible. Apple Inc. demonstrated in its Apple Watch devices that it is possible to combine silicon-based and oxide-based materials with the so-called low-temperature polycrystalline oxide or LTPO display.

Miyata, Y., Furuta, M., Yoshioka, T., and Kawamura, T. 1992. “Low-Temperature Polycrystalline Silicon Thin-Film Transistors for Large-Area Liquid Crystal Display.” Japanese Journal of Applied Physics. 31(P. 1, No. 12B): 4559-4562. DOI: 1143/jjap.31.4559

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In recent years, with the development of full-screen mobile phones, In-cell LCD screens have gradually been applied to various mobile phone brands. In the In-cell LCD screen assembly, In-cell screens of LTPS In-cell LCD, IPS In-cell LCD, and Retina In-cell LCD have gradually appeared. Let me introduce the characteristics of the three In-cell LCD screens.

LTPS (Low-Temperature Poly-silicon) is a type of polysilicon, which means that the arrangement of molecular structure in a crystal grain is neat and directional, so the electron mobility rate is faster than that of disordered amorphous silicon. Because of the slow electron movement rate of the amorphous silicon a-si, the drive circuit (gate scanning circuit, data circuit) of the panel can only be done on the IC (voltage -10V~15V), and because LTPS has fast electron movement, Therefore, he built the driving circuit (L/S amplifier circuit in the gate direction, switch circuit in the data direction) around the glass substrate, so he only needs to buy low-voltage IC chips (which are cheaper). When LTPS In-cell LCD is applied to the mobile phone screen assembly, it has the features of ultra-thin, lightweight, fast response speed, high resolution, and low power consumption.

IPS screen (In-Plane Switching, plane switching) technology is a liquid crystal panel technology launched by Hitachi in 2001, commonly known as "Super TFT". IPS screen is a technology based on TFT, and its essence is TFT screen. IPS is a film with a layer of resin attached to the surface. The advantage of the IPS screen is that it is oriented into an opaque mode. The electrode with the vertical orientation of the liquid crystal molecules determines how much light is transmitted. The higher the voltage, the more molecules are twisted.

IPS is mainly used on hard screens. The reason why IPS hard screens have a clear and ultra-stable dynamic display effect depends on its innovative horizontal conversion molecular arrangement, which changes the vertical molecular arrangement of VA soft screens, thus having a more robust and stable liquid crystal structure. The reason why it is called an IPS hard screen is to add a hard protective film to the LCD panel to prevent the LCD screen from being damaged by external hard objects. IPS In-cell LCD has fast response speed, large viewing angle, vivid and saturated display color, and stable dynamic high-definition display.

Retina display is also called retina screen, Retina is actually the name of display technology. This technology compresses more pixels onto a single screen to achieve a delicate screen with amazing resolution. Although the resolution of the screen generally appears in the format of "number of pixels x number of pixels", it is the pixel density, that is, PPI, not the number of pixels, that really determines the screen resolution. In addition, in addition to PPI, the distance between the eyes and the screen also determines whether a screen is clear enough to be called "Retina". For smartphones, 326 PPI can be called Retina display. Retina In-cell LCD uses the same technology as LTPS In-cell LCD, but Retina screens have more advantages in PPI.

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.

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LTPS LCD display can provide higher picture resolution but deteriorates faster than standard IPS LCD display over time. An AMOLED display will provide high contrast pictures any time but it too has the tendency to deteriorate faster than LCD panels.

Green House Gaming unveils 27-Inch IGZO display for gamers. IGZO features a 20–50 times faster electron mobility, considerably better translucency (transparency) and smaller transistor size, compared to amorphous silicon (a-Si) traditionally featured on backlighting modules of LCDs.

LTPS-TFT is commonly used to drive organic light-emitting diode (OLED) displays because it has high resolution and accommodation for large panels. However, variations in LTPS structure would result in non-uniform threshold voltage for signals and non-uniform brightness using traditional circuits.

The LTPS display provides a better picture quality for the user and some people consider it to be more true to life. It provides larger picture densities and is also lower on power consumption as it does not light up every pixel individually. People can expect a higher picture resolution in their displays.

It is currently used as the thin-film transistors for use in organic light-emitting diode (OLED) TV displays. IGZO-TFT and its applications are patented by JST.

LTPS stands for Low-Temperature PolySilicon. This type of display provides a faster and more integrated display compared to a standard LCD. The LTPS display provides a better picture quality for the user and some people consider it to be more true to life.

OLED comprises thin layers of the organic component, which emits light when current is passed through it. In this technology, each pixel transmits its own light. On the other side, AMOLED consists of an additional layer of thin-film transistors (TFTs).

A specific array of indium gallium zinc oxide could be designed to have electron mobility that could be near as low-temperature polysilicon. An IGZO display can retain an active pixel state for a longer period compared to both LTPS and a-Si that necessitate continuous pixel refresh because of their high current leakage.

Hence, IGZO display technology is compatible with different types of display panels such as twisted nematic or TN LCD, in-plane switching or IPS LCD, and organic light emitting diode or OLED display.

However, LTPS’s enhanced qualities still mean that it remains the preferred technology for higher resolution displays. IGZO. Currently, a-Si and LTPS LCD displays make up the largest combined percentage of the smartphone display market. However, IGZO is anticipated as the next technology of choice for mobile displays.

Another benefit of IGZO TFT and thus, another advantage of IGZO display is less noise influence. This characteristic is based on the fact that an IGZO is an intermittent type of semiconductor. To understand further, note that the drive in an IGZO display does not need to be continuous.

Low-temperature polycrystalline silicon (or LTPS) LCD—also called LTPS TFT LCD—is a new-generation technology product derived from polycrystalline silicon materials. Polycrystalline silicon is synthesised at relatively low temperatures (~650°C and lower) as compared to traditional methods (above 900°C).

Standard LCDs found in many consumer electronics, including cellphones, use amorphous silicon as the liquid for the display unit. Recent technology has replaced this with polycrystalline silicon, which has boosted the screen resolution and response time of devices.

Row/column driver electronics are integrated onto the glass substrate. The number of components in an LTPS LCD module can be reduced by 40 per cent, while the connection part can be reduced by 95 per cent. The LTPS display screen is better in terms of energy consumption and durability, too.

LTPS LCDs are increasingly becoming popular these days. These have a high potential for large-scale production of electronic devices such as flat-panel LCD displays or image sensors.

LCD or AMOLED, 1080p vs 2K? There are plenty of contentious topics when it comes to smartphone displays, which all have an impact on the day to day usage of our smartphones. However, one important topic which is often overlooked during analysis and discussion is the type of backplane technology used in the display.

Display makers often throw around terms like A-Si, IGZO, or LTPS. But what do these acronyms actually mean and what’s the impact of backplane technology on user experience? What about future developments?

For clarification, backplane technology describes the materials and assembly designs used for the thin film transistors which drive the main display. In other words, it is the backplane that contains an array of transistors which are responsible for turning the individual pixels on and off, acting therefore as a determining factor when it comes to display resolution, refresh rate, and power consumption.

Examples of backplane technology include amorphous silicon (aSi), low-temperature polycrystalline silicon (LTPS) and indium gallium zinc oxide (IGZO), whilst LCD and OLED are examples of light emitting material types. Some of the different backplane technologies can be used with different display types, so IGZO can be used with either LCD or OLED displays, albeit that some backplanes are more suitable than others.

Amorphous silicon has been the go-to material for backplane technology for many years, and comes in a variety of different manufacturing methods, to improve its energy efficiency, refresh speeds, and the display’s viewing angle. Today, a-Si displays make up somewhere between 20 and 25 percent of the smartphone display market.

For mobile phone displays with a pixel density lower than 300 pixels per inch, this technology remains the preferable backplane of choice, mainly due to its low costs and relatively simple manufacturing process. However, when it comes to higher resolution displays and new technologies such as AMOLED, a-Si is beginning to struggle.

AMOLED puts more electrical stress on the transistors compared with LCD, and therefore favours technologies that can offer more current to each pixel. Also, AMOLED pixel transistors take up more space compared with LCDs, blocking more light emissions for AMOLED displays, making a-Si rather unsuitable. As a result, new technologies and manufacturing processes have been developed to meet the increasing demands made of display panels over recent years.

LTPS currently sits as the high-bar of backplane manufacturing, and can be spotted behind most of the high end LCD and AMOLED displays found in today’s smartphones.  It is based on a similar technology to a-Si, but a higher process temperature is used to manufacture LTPS, resulting in a material with improved electrical properties.

LTPS is in fact the only technology that really works for AMOLED right now, due to the higher amount of current required by this type of display technology. LTPS also has higher electron mobility, which, as the name suggests, is an indication of how quickly/easily an electron can move through the transistor, with up to 100 times greater mobility than a-Si.

For starters, this allows for much faster switching display panels. The other big benefit of this high mobility is that the transistor size can be shrunk down, whilst still providing the necessary power for most displays. This reduced size can either be put towards energy efficiencies and reduced power consumption, or can be used to squeeze more transistors in side by side, allow for much greater resolution displays. Both of these aspects are becoming increasingly important as smartphones begin to move beyond 1080p, meaning that LTPS is likely to remain a key technology for the foreseeable future.

The drawback of LTPS TFT comes from its increasingly complicated manufacturing process and material costs, which makes the technology more expensive to produce, especially as resolutions continue to increase. As an example, a 1080p LCD based on this technology panel costs roughly 14 percent more than a-Si TFT LCD. However, LTPS’s enhanced qualities still mean that it remains the preferred technology for higher resolution displays.

Currently, a-Si and LTPS LCD displays make up the largest combined percentage of the smartphone display market. However, IGZO is anticipated as the next technology of choice for mobile displays. Sharp originally began production of its IGZO-TFT LCD panels back in 2012, and has been employing its design in smartphones, tablets and TVs since then. The company has also recent shown off examples of non-rectangular shaped displays based on IGZO. Sharp isn’t the only player in this field — LG and Samsung are both interested in the technology as well.

The area where IGZO, and other technologies, have often struggled is when it comes to implementations with OLED. ASi has proven rather unsuitable to drive OLED displays, with LTPS providing good performance, but at increasing expense as display size and pixel densities increase. The OLED industry is on the hunt for a technology which combines the low cost and scalability of a-Si with the high performance and stability of LTPS, which is where IGZO comes in.

Why should the industry make the switch over to IGZO? Well, the technology has quite a lot of potential, especially for mobile devices. IGZO’s build materials allow for a decent level of electron mobility, offering 20 to 50 times the electron mobility of amorphous silicon (a-Si), although this isn’t quite as high as LTPS, which leaves you with quite a few design possibilities. IGZO displays can therefore by shrunk down to smaller transistor sizes, resulting in lower power consumption, which provides the added benefit of making the IGZO layer less visible than other types. That means you can run the display at a lower brightness to achieve the same output, reducing power consumption in the process.

One of IGZO’s other benefits is that it is highly scalable, allowing for much higher resolution displays with greatly increased pixel densities. Sharp has already announced plans for panels with 600 pixels per inch. This can be accomplished more easily than with a-Si TFT types due to the smaller transistor size.

Smaller IGZO transistors are also touting superior noise isolation compared to a-Si, which should result in a smoother and more sensitive user experience when used with touchscreens. When it comes to IGZO OLED, the technology is well on the way, as Sharp has just unveiled its new 13.3-inch 8K OLED display at SID-2014.

Essentially, IGZO strives to reach the performance benefits of LTPS, whilst keeping fabrications costs as low as possible. LG and Sharp are both working on improving their manufacturing yields this year, with LG aiming for 70% with its new Gen 8 M2 fab. Combined with energy efficient display technologies like OLED, IGZO should be able to offer an excellent balance of cost, energy efficiency, and display quality for mobile devices.

Innovations in display backplanes aren’t stopping with IGZO, as companies are already investing in the next wave, aiming to further improve energy efficiency and display performance. Two examples worth keeping an eye are on are Amorphyx’ amorphous metal nonlinear resistor (AMNR) and CBRITE.

This developing technology can be manufacturing on a process that leverages a-Si TFT production equipment, which should keep costs down when it comes to switching production, whilst also offering a 40 percent lower cost of production compared with a-Si. AMNR is also touting better optical performance than a-Si and a complete lack of sensitivity to light, unlike IGZO. AMNR could end up offering a new cost effective option for mobile displays, while making improvements in power consumption too.

CBRITE, on the other hand, is working on its own metal oxide TFT, which has a material and process that delivers greater carrier mobility than IGZO. Electron mobility can happily reach 30cm²/V·sec, around the speed of IGZO, and has been demonstrated reaching 80cm²/V·sec, which is almost as high as LTPS. CBRITE also appears to lend itself nicely to the higher resolution and lower power consumption requirements of future mobile display technologies.

Smartphones are already benefiting from improvements in screen technology, and some would argue that things are already as good as they need to be, but the display industry still has plenty to show us over the next few years.