ltps tft lcd manufacturer

(Low Temperature PolySilicon)An active matrix LCD screen that is faster and more integrated than screens made with amorphous silicon substrates. Rather than the single-crystal silicon used in chips, amorphous silicon advanced the active matrix industry by allowing thin film transistors (TFTs) to be deposited on large substrates. There is a huge investment in existing amorphous technology; however, polysilicon provides an alternate approach for certain applications.Faster, Denser, More IntegratedThe larger and more uniform grains of polysilicon (poly-Si) allow electrons to flow 100 times faster than they do through the random-sized grains of amorphous silicon (a-Si), enabling higher resolutions and higher speed. In addition, instead of surrounding the screen area, the row/column driver electronics are integrated onto the glass substrate, thereby reducing the TFT section and the wiring between the pixels. Thus, LTPS LCD pixels can be closer together and achieve densities of 800 dpi and greater.

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Samsung Display was considering manufacturing thin-film transistors (TFT) that will be used in Micro LED TVs made by Samsung Electronics, TheElec has learned.

Samsung Display’s is doing so following Samsung Electronics’ request. The South Korean tech giant’s TV business, called Visual Display Business by the firm, had made a request to Samsung Display early in the year to manufacture low-temperature polycrystalline (LTPS) TFT for Micro LED.

TFT acts as a switch that turns the pixel on and off on the display. Samsung had used printed circuit boards (PCB) for its previous Micro LED TVs that exceed 100-inch in size.

This is because smaller TV models mean they will use even smaller LEDs that are more tightly packed together. Use of LTPS TFT will allow for a micro circuit design that can control these smaller LEDs individually. This is difficult to do with circuits on a conventional PCB.

Samsung Display will be manufacturing the LTPS TFT at its A1 line (Gen 4, 730x930mm) at its Cheonan plant. A1 previously manufactured LTPS TFT rigid OLED panels. But Samsung Display currently manufactures rigid OLED panels at its A2 line (Gen 6, 1500x1850mm), which is more productive. As of the first half of 2021, A1’s operation rate was in the single digits, the sources said.

For the Micro LED LTPS TFT production process, a total of 24 masks are expected to be needed, the sources said. This is because it will have a lot of transistors and circuits. Conventionally, for a Gen 6 OLED substrate, 11 to 12 masks are used. More masks means the production process is more sophisticated.

Samsung Electronics’ request to Samsung Display was done at the same time when it was asking its display making subsidiary to extend the production of liquid crystal display (LCD) panels, the sources said.

Initially, Samsung Electronics had requested to Taiwan’s AUO to make the LTPS TFT is needs for Micro LED. However, Samsung Electronics determined that it will be difficult to control a steady supply of the TFT from this deal, and has changed tack to ask Samsung Display instead.

According to LCD (Liquid Crystal Display) technology and LCD materials, mobile phone LCD assemblies can be classified into 2 types: TFT (Thin Flim Transistor) and OLED（Organic Light-Emitting Diode). TFT display needs with backlight, but OLED is light-emitting, each pixel is creating its own light.

For Original iPhone LCD, 5-8 plus and Xr, 11 is TFT, X-13 Pro Max is OLED (except XR and 11). But in mobile phone aftermarket, there are too many different types and different qualities, which makes customers confused.

What is in-cell? What is OGS or " with TP"? What is COF? What is COG? What is OEM? What is FOG? What is Original Change Glass? What is IPS? What is LTPS? What is a-Si?

IGZO has 20–50 times the electron mobility than a-Sin. IGZO only has been licensed to Samsung Electronics and Sharp. However, it was Sharp who first implemented IGZO into their smartphones (Aquos Phone Zeta SH-02E), tablets, and 32-inch LCDs. IGZO for mobile phones is only Sharp. Almost all mobile phones on the market didn"t use IGZO.

Because the electrons deflect the liquid crystal molecules through the transistor. Electron mobility fundamentally determines the refresh rates of the TFT device. The smaller mobility, the slower transmission of holes and electrons, and the slower response rate. Can"t physically support high refresh rates.

In order to improve the response performance, can increase transistor size to enhance the migration, but this will lead to the extra TFT device that will occupy the display area pixel area. Therefore, the larger unit transistor area, the single-pixel occupy area is smaller(Pixel Aperture Ratio ), resulting in lower brightness.

As we can see electron mobility of a-Si is very low (0.5-1cm2/Vs). But LTPS can deliver a hundred times the mobility than a-Si, and a much higher aperture ratio and PPI is much higher than a-Si resolution.

Compared with LTPS，a-si TFT have those "weakness":a-Si with so much low resolution and low definition. a-Si is 720*1280 with a very blurred display effect.

a-Si with so much bad display performance, but why are there still so many manufacturers producing phone LCDs with a-Si, or why do the customers willing to use a-Si LCD for their phone?

LCDs business has too much competition and wholesalers want to make more profit, they keep pushing suppliers to make LCDs at lower prices. So some of the suppliers start to produce aftermarket phone displays with a-Si to match customers" lower price requirements.

The customers with asymmetric information. End-Users don"t know how to distinguish LCDs qualities. Some of them just chase the price but not quality. That is another reason wholesalers want a lower price.

Now in the market a-Si LCDs for iPhone is TFT with TP but not in-cell. Our ZY a-Si will be in-cell not just TFT with TP. ZY a-Si incell for Xr and 11 ready now, please to get more details.

For more details or questions about in-cell and TFT with TP or about phone LCD display. Please click here to get more information, or Long press and scran the QR code to add me.

LTPS is an abbreviation for Low-Temperature Polycrystalline silicon. When compared to conventional methods LCD, this form of monitor is speedier and much more incorporated.

Furthermore, rather than enclosing the best positioned, individual row/column controller semiconductors are incorporated onto the glass surface, decreasing the TFT portion as well as the wire between the pixels.

As a result, LTPS LCD units may be brought adjacent together again and attain densities of 200 dpi or higher. It has higher graphic intensities and uses less electricity because it does not light up each pixels separately. Customers might anticipate greater resolution of the image on tablet devices.

This LTPS panel offers a higher graphical fidelity to the viewer, and some people believe it will be more believable. It has higher picture densities and uses less electricity because it does not light up each pixel separately.

Currently, a-Si panels account for a sizable portion of the cell phone screen industry. LTPS is now the gold standard in power supply manufacture and can be discovered while behind majority of high-end LCD and AMOLED displays used in today’s handsets.

It really is based on the common technique to a-Si, but LTPS is manufactured at a greater processing temperature, culminating in a semiconductor with enhanced electrical characteristics. Due to the larger amount of current necessary by this process, LTPS is currently the only technique that truly works with AMOLED.

LTPS also has better electronic conductivity, which indicates whether quickly/easily the electrons can pass across the transistor, with up to 100 percent more maneuverability than a-Si. In instance, this enables significantly quicker swapping between display screens.

The increasing demand for Low Temperature Polysilicon (LTPS) Display is leading firms in the worldwide Low Temperature Polysilicon (LTPS) Market globally to investigate new rivals, innovations, as well as expenditures.

In particular, any use of crystal of silicon in thin-film semiconductors (LTPS-TFT) offers a tremendous potential for huge manufacture of electronic equipment such as flat screen LCD displays or photodetector.

The Low Temperature Polysilicon (LTPS) Display market research also includes detailed information on industry advancement trends, present market characteristics, sourcing raw – materials assessment, and customer requirements.

Samsung Electronics has been one of the growing industries in the global market focusing on better daily technologies to be integrated for major sectors of operations. The Samsung Displays had been exploring producing thin-film transistors (TFT) for use in Samsung Electronics’ Micro LED TVs.

This TFT serves as a switch which toggles its screen’s pixels on and off. For prior Micro LED TVs larger than 100 inches in length, Samsung employed circuit boards (PCB). Nevertheless, the tech behemoth intends to use LTPS TFT for the smaller Micro LED TV versions.

This is attributed to the reason that thinner TV versions will employ even tiny LEDs that would be more densely populated altogether. Any use of LTPS TFT allows for the creation of a microcircuit that really can regulate these tiny LEDs separately. This is tough to achieve using circuits on a standard PCB. This touchscreen will indeed be manufactured by Samsung Displays.

Sony Corporation is growing its development technologies focusing on the LTPS Market of global operability with much higher display systems in operations. Sony has created low-power, comparatively tiny LTPS (Low Temperature Poly Silicon) TFT-LCD screens for mobile devices.

Sony is able to make LTPS TFT-LCDs that utilise approximately 25% lower electricity compared present versions by strengthening drive circuits. Sony also managed to minimise the volume used by control loops by 14%, freeing up more room here on monitor for such monitor screen.

It also intends to manufacture a 1080p Full Active LTPS LCD panel with a 2:1 viewing angle. It has a 6-inch diagonally touchscreen with tiny bezels and Pixel Eyes technology, which allows for far lower black depths than what has been generally connected with LCD displays.

STONE Technologies is a proud manufacturer of superior quality TFT LCD modules and LCD screens. The company also provides intelligent HMI solutions that perfectly fit in with its excellent hardware offerings.

STONE TFT LCD modules come with a microcontroller unit that has a 1GHz Cortex-A8 CPU. Such a module can easily be transformed into an HMI screen. Simple hexadecimal instructions can be used to control the module through the UART port. Furthermore, you can seamlessly develop STONE TFT LCD color user interface modules and add touch control, features to them.

Becoming a reputable TFT LCD manufacturer is no piece of cake. It requires a company to pay attention to detail, have excellent manufacturing processes, the right TFT display technology, and have a consumer mindset.

Now, we list down 10 of the best famous LCD manufacturers globally. We’ll also explore why they became among the top 10 LCD display Manufacturers in the world.

LG Display is a leading manufacturer of thin-film transistor liquid crystal displays (TFT-LCD) panels, OLED, and flexible displays.LG Display began developing TFT-LCD in 1987 and currently offers Display panels in a variety of sizes and specifications using different cutting-edge technologies (IPS, OLED, and flexible technology).

With innovative and differentiated technologies, QINNOOptoelectronics provides advanced display integration solutions, including 4K2K ultra-high resolution, 3D naked eye, IGZO, LTPS, AMOLED, OLED, and touch solutions. Qinnooptoelectronics sets specifications and leads the market. A wide range of product line is across all kinds of TFT LCD panel modules, touch modules, for example, TV panel, desktop and laptop computer monitor with panels, small and medium scale “panels, medical, automotive, etc., the supply of cutting-edge information and consumer electronics customers around the world, for the world TFT – LCD (thin-film transistor liquid crystal display) leading manufacturers.

AU Optronics Co., LTD., formerly AU Optronics Corporation, was founded in August 1996. It changed its name to AU Optronics after its merger with UNIOPtronics in 2001. Through two mergers, AU has been able to have a full range of generations of production lines for panels of all sizes.Au Optronics is a TFT-LCD design, manufacturing, and r&d company. Since 2008, au Optronics has entered the green energy industry, providing customers with high-efficiency solar energy solutions.

Sharp has been called the “father of LCD panels”.Since its founding in 1912, Sharp developed the world’s first calculator and LIQUID crystal display, represented by the living pencil, which was invented as the company name. At the same time, Sharp is actively expanding into new areas to improve people’s living standards and social progress. Made a contribution.

BYD IT products and businesses mainly include rechargeable batteries, plastic mechanism parts, metal parts, hardware electronic products, cell phone keys, microelectronics products, LCD modules, optoelectronics products, flexible circuit boards, chargers, connectors, uninterruptible power supplies, DC power supplies, solar products, cell phone decoration, cell phone ODM, cell phone testing, cell phone assembly business, notebook computer ODM, testing and manufacturing and assembly business, etc.

Tianma microelectronics co., LTD., founded in 1983, the company focus on smartphones, tablets, represented by high order laptop display market of consumer goods and automotive, medical, POS, HMI, etc., represented by professional display market, and actively layout smart home, intelligent wear, AR/VR, unmanned aerial vehicles (UAVs) and other emerging markets, to provide customers with the best product experience.IN terms of technology, the company has independently mastered leading technologies such as LTPS-TFT, AMOLED, flexible display, Oxide-TFT, 3D display, transparent display, and in-cell/on-cell integrated touch control. TFT-LCD key Materials and Technologies National Engineering Laboratory, national enterprise Technology Center, post-doctoral mobile workstation, and undertake national Development and Reform Commission, The Ministry of Science and Technology, the Ministry of Industry and Information Technology, and other major national thematic projects. The company’s long-term accumulation and continuous investment in advanced technology lay the foundation for innovation and development in the field of application.

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.

Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:

Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:

LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.

"Samsung Display has halted local Gen-8 LCD lines: sources". THE ELEC, Korea Electronics Industry Media. August 16, 2019. Archived from the original on April 3, 2020. Retrieved December 18, 2019.

"TCL to Build World"s Largest Gen 11 LCD Panel Factory". www.businesswire.com. May 19, 2016. Archived from the original on April 2, 2018. Retrieved April 1, 2018.

"Panel Manufacturers Start to Operate Their New 8th Generation LCD Lines". 대한민국 IT포털의 중심! 이티뉴스. June 19, 2017. Archived from the original on June 30, 2019. Retrieved June 30, 2019.

"Samsung Display Considering Halting Some LCD Production Lines". 비즈니스코리아 - BusinessKorea. August 16, 2019. Archived from the original on April 5, 2020. Retrieved December 19, 2019.

Herald, The Korea (July 6, 2016). "Samsung Display accelerates transition from LCD to OLED". www.koreaherald.com. Archived from the original on April 1, 2018. Retrieved April 1, 2018.

"China"s BOE to have world"s largest TFT-LCD+AMOLED capacity in 2019". ihsmarkit.com. 2017-03-22. Archived from the original on 2019-08-16. Retrieved 2019-08-17.

"Apple has long been speculated that it will launch an AMOLED version of its new iPhone in September along with two other LTPS TFT LCD models," industry sources said.

But TRI said that the definition LTPS TFT LCD panels varies proportionally with needed power to drive backlights in handsets, a relationship that is politically-incorrect in this age of eco-awareness and would work against promotions in markets with high proportions of consumers whose buying decisions are actually influenced by the green movement than fad.

Optimization resulting from high transmissivity of LTPS TFT LCD technology achieves a high luminance of 250cd/m2, a high contrast ratio of 400:1 and a wide color gamut of 70%, despite super-high density of 229 ppi.

A combination of high transmissivity of LTPS TFT LCD technology and NEC LCD Technologies" own unique super-reflective natural light TFT (SR-NLT) technology achieves high luminance of 200cd/m2 and a high reflective ratio of 15%, despite a super-high density of 229 ppi.

Optimization based on high transmissivity of LTPS TFT LCD technology achieves high luminance of 200cd/m2, a high contrast ratio of 400:1 and a wide color gamut of 70%, despite ultra-high density of 302ppi.

A combination of high transmissivity of LTPS TFT LCD technology and NEC LCD Technologies" own unique super-reflective natural light TFT (SR-NLT) technology achieves high luminance of 180cd/m2 and a high reflective ratio of 15%, despite ultra-high density of 302ppi.

Leadis supplies display drivers supporting the major small panel display technologies, including a-Si and LTPS TFT LCD"s, color STN LCD"s, and color OLED displays.

Estimated Shipments of Small and Medium-sized Display Panels, by Category Unit: 1 million units Period LTPS TFT LCD a-Si TFT LCD CSTN LCD MSTN LCD AMOLED Q1, 2010 69 234 66 18 6 Q2, 2010 78 252 66 18 6 Q3, 2010 102 264 48 18 12 Q4, 2010 96 252 48 12 18 Q1, 2011 96 228 36 12 18 Q2, 2011 102 300 36 6 24 Q3, 2011 108 300 24 12 36 Q4, 2011 108 280 24 12 42 Q1, 2012 110 300 15 12 42 Q2, 2012 120 310 13 10 42 Q3, 2012 150 320 10 10 54 Q4, 2012 140 320 10 10 54 Source: Topology Research Institute

Shipment Share of Cellphone Main Display by Technology Sum of / Unit Share (%) 2009 Q1 "10 a-Si TFT LCD 52.3% 59.2% CSTN 20.3% 15.3% LTPS TFT LCD 20.4% 17.6% AMOLED 1.4% 1.9% MSTN 5.6% 6% PMOLED 0.1% 0% Source: Display Search Quarterly Mobile Phone Shipment and Forecast Report

Founded in 2001, AFPD is a joint venture between Toshiba Corporation and Matsushita Electric Industrial Co., Ltd., specializing in the manufacture of LTPS TFT LCDs with excellent mass production and related technologies as its intelligence properties.

The present invention relates to an LCD structure and a method for manufacturing the structure. In particular, the invention relates to an LTPS-TFT LCD structure and a method for manufacturing the structure to reduce photolithography processes with masks and simultaneously enhance pixel capacitance.

Liquid crystal displays (LCDs) are mainstream products on the display market. Not only do LCDs save power and emit low radiation, they are also lightweight and portable. Technologies of thin-film-transistor LCD (TFT-LCD) can be classified into two groups: amorphous silicon (α-Si) and poly-silicon (Poly-Si). The technology and techniques of α-Si are fully developed and frequently used in TFT-LCDs on the display market.

However, low temperature poly silicon (LTPS) is a recent and novel technology for manufacturing Poly-Si LCDs. In comparison with conventional α-Si LCDs, carrier mobility on the LTPS TFT is at least two hundred times higher than that on the α-Si TFT due to its characteristics. The displays which utilize LTPS technology also have higher performance, with shorter response time and greater brightness, resolution, and color saturation. Therefore, LTPS-LCD can present images with higher display quality. Moreover, the physical structure and elements in the LTPS-LCDs can be minimized, so the TFT module area is at least 50% smaller. Thus, LTPS-LCDs can be thinner and lighter to reduce power exhausting. The size advantage of the TFT modules also reduces manufacturing costs of the LTPS-LCDs as well. Because of the many advantages present by LTPS technology, LTPS-LCDs attract lots of attentions on the LCD market.

In the conventional LTPS photolithography manufacturing processes, six masks are usually involved. These processes for manufacturing an LPTS display structure 10 are outlined in FIGS. 1A˜1F. For illustration, a TFT 11 and a capacitance storage device 13 are merely shown in the figures. Firstly, FIG. 1A shows the photolithography process with the first mask. Poly-silicon islands 110, 130 are formed onto a substrate 100 to function as fundamental materials for the TFT 11 and the capacitance storage device 13.

However, the conventional LTPS display structure 10 still has disadvantageous limitations. As shown in FIG. 1B, the poly-silicon island 130 that is sheltered from the first conductive layer 133 cannot be doped during the doping process. Consequently, the final product would not have any effective capacitance between the first conductive layer 133 and the poly-silicon island 130. As a result, the capacitance provided from the display structure 10 is substantially reduced. Furthermore, because of the complicated manufacturing processes of the conventional structure, more photolithography processes with masks are required, raising the cost of manufacturing.

Given the above, an LTPS-LCD structure which can be made from simplified photolithography processes and promote capacitances needs to be developed in this field.

The primary objective of this invention is to provide an LTPS-LCD structure. By previously disposing a transparent electrode on the bottom of the display structure, an effective capacitance can be generated within the un-doped poly-silicon area. Thus, the capacitance of the final product can be promoted to benefit effective operation of the display structure.

Another objective of this invention is to provide a method for manufacturing the LTPS-LCD structure. By disposing the transparent electrode during the previous photolithography process, the processes for manufacturing the entire TFT and capacitance storage device can be simplified to effectively economize costs and shorten manufacturing periods.

To achieve the aforementioned objectives, an LTPS-LCD structure is provided in the present invention. The structure comprises a substrate, a transparent electrode, a lower insulator layer, a control device, a first conductive layer, an upper insulator layer, and a second conductive layer. The substrate is formed with a plurality of pixel areas each including a control area, a capacitance area, and a display area. The transparent electrode is formed on the substrate that corresponds to the display area, the control area, and the capacitance area. The lower insulator layer is formed on the transparent electrode that corresponds to the control area. The control device is formed on the lower insulator layer that corresponds to the control area. The first conductive layer is partially formed on the control device and the transparent electrode that corresponds to the control area and the capacitance area respectively. The upper insulator layer at least partially covers the control device and the first conductive layer. The second conductive layer at least partially covers the upper insulator layer for forming a capacitance storage device with the first conductive layer on the capacitance area, whereby it electrically connects the control device to the transparent electrode disposed on the display area.

A method for manufacturing the aforementioned LTPS-LCD structure is also provided in the present invention. The method comprises the following steps: forming the transparent electrode on the display area, the control area, and the capacitance area of the substrate; forming a silicon-oxide insulator layer that corresponds to the control area; locally forming a first conductive layer on the silicon-oxide insulator layer and the transparent electrode that corresponds to the control area and the capacitance area, and forming the control device on the control area; forming an upper insulator layer which at least partially covering the control device and the first conductive layer; and forming a second conductive layer which at least partially covering the upper insulator layer to form a capacitance storage device with the first conductive layer.

A preferred embodiment of the LTPS-LCD structure of the present invention is shown in FIG. 6, and preferred processes for manufacturing the structure are shown from FIG. 2A through FIG. 6.

The LTPS-LCD structure 20 of the present invention comprises a control device 51, a capacitance storage device 53, and a pixel unit 55. Referring to FIGS. 2A and 2B, the structure 20 comprises a substrate 200 which is formed with a plurality of pixel areas. To specifically disclose the present invention, only a pixel area 30 is representatively shown in the figures. Each pixel area 30 includes a control area 31, a capacitance area 33, and a display area 35.

Finally, as shown in FIG. 6, the photolithography process with the fifth mask of the present invention forms a passivation layer 28 to cover the LTPS-LCD structure 20 on the second conductive layer 271, 272.

In accordance with the aforesaid manufacturing processes, the LTPS-LCD structure 20 of the present invention is obtained. On the control area 31, the structure 20 successively comprises the substrate 200, the transparent electrode 21, the lower insulator layer 22, the control device 51, the mid-insulator layer 24, the first conductive layer 25, the upper insulator layer 26, the second conductive layer 271, and the passivation layer 28. On the capacitance area 33, preferably, the structure 20 successively comprises the substrate 200, the transparent electrode 21, the mid-insulator layer 24, the first conductive layer 25′, the upper insulator layer 26, the second conductive layer 272, and the passivation layer 28. However, on the display area, only the substrate 200 and the transparent electrode 21 remain.

Preferably, the control device 51 is a thin-film-transistor (TFT) and the lower insulator layer 22 can be the silicon-oxide insulator layer 22. The passivation layer 28 completely covers the second conductive layer 271, 272.

According to the above-mentioned LTPS-LCD structure 20 of the present invention, the transparent electrode 21 is previously formed on the substrate 200. This structure can not only enhance the efficiency of the capacitance storage device, but can also diminish the number of steps within the photolithography processes or etching processes with masks from six to five. This can substantially reduce costs and shorten manufacturing processes.

Our latest 2.4" LTPS TFT LCD (liquid-crystal display), with its high resolution of 800 (RGB: red green blue) x 480 pixels, normally only associated with larger 5” and 7” panel sizes, goes some way to meet these new demands.

The module boasts a superb optical specification, and with its “All View” LTPS technology, the display can be mounted in both landscape (default) and portrait orientations without the loss of image quality. It has ultra-wide viewing angles of 80°/80°/80°/80°, a 1000:1 contrast ratio, a 16.7M colour palette, plus a high brightness of 1100 cd/m², which when all combined, produces great optical performance in all ambient light conditions – including full sunlight.

The panel’s LTPS (low temperature poly-silicon) technology enables the display to have a considerably higher resolution within the same footprint as an equivalent sized TN (twisted nematic) or IPS (in-plane switching) TFT (thin-film-transistor), and is the display technology widely used for mobile phones and tablets. The display"s colours are considered more dynamic and richer, response times are faster, plus due to its construction, there is less reflectance within the module, resulting in improved optical performance, especially in high ambient light outdoor applications.

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.