tft lcd gate driver ic brands

Recognized as the world"s leading solution provider for a full array of Display Driver ICs for LCD displays, Novatek has successfully become the industry leader by achieving substantial growth of its revenue and unit shipment, as well as design wins with its world-class customers since its announcement of Taiwan"s first 240ch gate driver and 288/240ch source driver for TFT LCD back in October 1999.

Since then, Novatek has concentrated its R&D resources on delivering the total solution of Display Driver IC, targeting for higher performance, lower EMI, low power consumption and highly integration. With Novatek"s design-wins with the world"s leading panel manufacturers, and affiliated with its strength of chip design, advanced fabrication capacity and process technologies, Novatek has been able to continually deliver the best value added solutions at the best time to market, thereby gaining the satisfaction and royalty from the customers.

研創電子有限公司2007年成立於香港，經過多年發展，由初期的被動電子元器件代理商逐漸成長為一家專業從事電子產品代理銷售，軟件設計開發，技術服務等業務的高科技企業。 公司擁有美、韓、台眾多國際知名品牌代理權，在電子元器件，IC集成電路，液晶面板，EDA軟件，顯示模組等行業建立起良好的客戶關係，客戶涵蓋中國大陸，日本，韓國，香港/台灣及東南亞等地區。 公司始終秉承質量優先，服務至上理念，始終專注於半導體及顯示技術和產品領域，深耕大灣區，分別在深圳、香港及台灣等地設立運營本部、物流倉儲及研發中心。並已在上海、武漢、成都等地部署多個營銷中心，緊跟行業及技術趨勢，為客戶提供卓越產品及服務。 ...

Driver ICs are critical components of TFT-LCD panels. Driver IC receives image data and delivers precise analog voltages or currents to activate the pixels on the display. When voltage is applied to the liquid crystal within each pixel cell, the liquid crystal is bent, thereby changing the intensity of light that passes through each individual pixel. Combined with the colour filter on the front glass substrate, each pixel generates its own colours which, together with other pixels, make up the whole image on the panel.

Driver ICs for mobile phones include gate drivers and source drivers. Gate drivers turn on the transistor within each pixel cell on the horizontal row on the panel. When the transistors are turned on, source drivers will generate voltages that are applied to the liquid crystal within each pixel cell on that row for data input. The combination determines the colours generated by each pixel. Small-sized panel applications, such as mobile phones, require one source driver and one gate driver, which are integrated into a single chip due to space and cost considerations. Large-sized panel applications, such as television display or desktop monitor, normally have multiple gate drivers and source drivers which are installed separately on the panel.

Resolution and number of channels: Resolution refers to the number of pixels in width dimension multiplied by the number of pixels in height dimension. For example, a WVGA colour display screen with 480 x 800 pixels has 1,440 pixels from side to side and 800 pixels from top to bottom, and therefore it has a total number of 384,000 pixels (480 x 800 pixels). Each pixel is a sample of an original image and more samples typically provide more accurate representations of the original image. Therefore, resolution usually determines the level of fine detail within an image displayed on a panel. Each pixel is usually made up of one red column, one green column and one blue column. These three primary colours are combined to make a wide range of colours. For example, a colour display screen with 480 x 800 pixels has 480 red columns, 480 green columns and 480 blue columns for a total of 1,440 columns and 800 rows. Therefore, the display drivers ICs need to drive 1,440 column outputs and 800 row outputs.

Colour depth: Colour depth is the number of colours that can be displayed on a screen, which is determined by the number of shades of a colour, also known as grayscale, which can be shown by panel. The number of distinct colours that can be generated by a pixel depends on the number of bits of the driver IC.

Higher level of integration: Due to the size constraint of mobile phones, the space available for components is usually limited. In order to stay competitive in the market, customers demand for higher levels of integration and simpler module assembly process to manufacture more compact panels and reduce unit costs. Small-sized panel applications require one source driver, one gate driver and timing controller which can be installed as separate semiconductors or as an integrated single-chip driver. Display driver IC manufacturers aim to offer highly integrated chips combining the source driver, gate driver and timing controller, as well as other functional circuits such as memory, power circuit and image processors, into one single chip. Due to the size and power constraints of such driver IC, single-chip driver IC is generally more complex to design.

TFT LCDs have become the norm for small-to-medium size displays in a variety of products within industrial, medical, POS and consumer applications. Compared to passive-addressed monochrome LCDs, TFT displays offer higher contrast, wider viewing angles, faster response time and full color. And, TFT LCDs are now on cost parity with similar size passive LCD displays.

A typical TFT LCD module product consists of a TFT LCD panel, one or more COG (chip-on-glass) driver ICs, a backlight unit, and an interface FPC. Several TFT display interface technologies coexist today. Picking the right technology depends on specific end-product concerns. Most often the display panel input will dictate that choice since TFT panels are designed to be COG bonding pad compatible with a very limited number of driver ICs. This article discusses the interfaces between TFT LCD modules and the typical CPUs found in embedded applications.

Typical TFT interfaces are determined by the particular TFT panel size and resolution, as shown in the below table. HDMI and eDP require interface converting boards and generally are not used for small to medium-size TFT LCDs.TFT LCD SizesResolutionsTypical Interfaces UsedUp to 3.5″128×160 to 240×320SPI, parallel MPU or RGB

The LCD controller signals are two types: data signals and control signals. The data signals are connected to the LCD data bus and depend on the LCD color depth (8-bit, 9-bit, 16-bit, 18-bit). The control signals are used to define the operation type (read or write), and whether the operation involves in addressing LCD registers or the display RAM.

LVDS interfacing has several benefits for TFT displays. It is much less susceptible to EMI and crosstalk issues, allowing the transmitting device to be located farther from the display. Also, LVDS generally consumes less power, pin counts are lower and there are far fewer worries about signal integrity.

High-speed serial interface commonly used on smartphones and tablets. By standardizing this interface, components may be developed that provide higher performance, lower power, less electromagnetic interference and fewer pins than current devices, while maintaining compatibility across products from multiple vendors.

Modern TFT driver ICs are highly integrated chips combining the source driver, gate driver and timing controller (TCON) – as well as other functional circuits such as memory, power circuit, and image processors – into one single IC die. Some driver ICs support multiple interfaces that are selectable on the module FPC or through initialization code firmware.

As a designer and manufacturer of custom LCD modules, New Vision Display works with customers to select the most appropriate and cost-effective TFT display and electronic interface solution for their particular requirement. New Vision Display has nearly 30 years of industry experience as one of the world’s leading TFT LCD screen manufacturers.

GENERAL DESCRIPTION The is a TFT LCD gate driver with 256 outputs for XGA/SXGA display systems. The logic and control portion is implemented in standard CMOS circuits while the output drivers use high voltage CMOS design. The low voltage part includes a 256-stage bidirectional shift register with right and left shift I/O for cascading. The output of the shift register is then level translated to drive the high voltage output buffer. There are four supply voltages for the CS5852. VDD/VLL are the supply voltages for logic interfaces. Typically VDD at 3.3V while VLL is 0V. VGON and VSS are the supply voltages for the output driver. VSS is the most negative supply voltage for the internal substrate of the CS5852. The CS5852 allows three output enable controls (OE1-3) and one global enable signal (XON). FEATURES 256 gate drive outputs Bidirectional shift control and cascadable Output enable and global on control Maximum shift clock frequency 100KHz 3.3V CMOS logic I/O High voltage output drive Operating supply range Logic (VDD-VLL: 3.3V) Output Drive (VGON -VSS: 40V) TCP package

IC top view. This diagram shows CS5852"s pin configuration only. The VAA and RESETN pins are used for internal tests and are not shown in the pad layout. Usage of these two pins is not compulsory. Figure-1

Name SCLK RL DIOR DIOL OE2, OE3 XON OUT [1-256] VDD VLL VGON VAA VSS RESETN Note: Pin I I/O I Description Shift clock. This a 3.3V CMOS level input for shift register clock. The rising edge of SCLK is used. Right/Left shift control. RL=1 is shift right RL=0 is shift left (OUT256 OUT1). Right Data I/O. This is a bidirectional shift data for the right side. is an output when RL=1, and an input when RL=0. DIOR and DIOL are used to cascade multiple CS5852s to form more than 256 outputs. Left Data I/O. This is the bidirectional shift data for the left side. Output enable control. The output is forced low when OE is high. OE1 controls output 1,4,...,253,256. The control is asynchronous to SCLK. OE2 controls output 2,5,...,251,254. The control is asynchronous to SCLK. OE3 controls output 3,6,...,252,255. The control is asynchronous to SCLK. Global on control. When XON=0, all outputs are forced high. XON is asychronous to SCLK. Internal pulled high with a 50K resistor. Output drive. These are the gate drive outputs. The high level is VGON and the low level is VSS. Positive supply for the CMOS logic I/O. This is typically 3.3V. Negative supply for the CMOS logic I/O. This is typically 0V. Positive supply for the output driver. This is typically the most positive supply voltage to CS5852. Positive supply for the internal logic circuits. Negative supply for the output drive and the substrate. This is the most negative supply voltage to CS5852. Active low reset pin. This signal uses to reset internal shift registers.

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Solomon Systech provides a wide range of large display driver IC solutions, including source drivers, gate drivers and a GIP controller. They support applications including monitors, notebooks, large-size TVs, etc. in different resolutions of HD, FHD, QHD and UHD 4K/8K.

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The report assesses the growth rate and market value based on market dynamics, growth inducers. Complete knowledge based on the latest industry news, opportunities and trends.

The report presents the market competitive landscape and a corresponding detailed analysis of the major vendor/key players in the market. Top Companies in the Global TFT LCD Driver ICs Market: Texas Instruments, Maxim Integrated, Microchip, Renesas Electronics, ROHM Semiconductor, Analog Devices, NXP Semiconductors, Infineon Technologies, ON Semiconductor, LAPIS Technology, Sitronix Technologoy, Hantronix

TFT LCD Driver ICsMarket Country Level Break-Up:United States, Canada, Mexico, Brazil, Argentina, Colombia, Chile, South Africa, Nigeria, Tunisia, Morocco, Germany, United Kingdom (UK), the Netherlands, Spain, Italy, Belgium, Austria, Turkey, Russia, France, Poland, Israel, United Arab Emirates, Qatar, Saudi Arabia, China, Japan, Taiwan, South Korea, Singapore, India, Australia, and New Zealand, etc.

- Key Strategic Developments:The study also includes the key strategic developments of the market, comprising R&D, new product launches, M&A, agreements, collaborations, partnerships, joint ventures, and regional growth of the leading competitors operating in the TFT LCD Driver ICs market on a global and regional scale.

- Key Market Features:The report evaluated key market features, including revenue, price, capacity, capacity utilization rate, gross, production, production rate, consumption, import/export, supply/demand, cost, market share, CAGR, and gross margin. In addition, the study offers a comprehensive study of the key market dynamics and their latest trends, along with pertinent TFT LCD Driver ICs market segments and sub-segments.

- Analytical Tools:The Global TFT LCD Driver ICs Market report includes the accurately studied and assessed data of the key industry players and their scope in the market by means of a number of analytical tools. Analytical tools such as Porter’s five forces analysis, SWOT analysis, feasibility study, and investment return analysis have been used to analyze the growth of the key players operating in the market.

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