tft lcd gate driver ic manufacturer

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.

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.

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.

Thin Film Transistor technology (TFT) is the base for all modern displays. They can be processed on various substrates, the most widely used being amorphous Silicon (aSi), Poly Silicon (polySi) and single Crystal Silicon (Si). Liquid Crystal Displays (LCDs) are formed by active matrices of TFT devices patterned in a configuration of rows and columns on which the transistors are connected and acting as switches. Each row of the matrix connects the gate of the TFT devices and each column of the matrix connects the drain terminal of the device while the source is connected to the storage capacitor of the LC pixel. Controlling the switching and the timing of the devices and the storage of the correct data voltage in each pixel is one of the main function of our LCD control chipset.

A family of High-voltage Drivers and Controllers for large and medium size flat panel displays used in cockpit flight navigation instruments. Within the same products portfolio, single line LCD panels are also used for selective fiber optic switches in telecommunication instruments. These high end applications require the highest circuits accuracy as well as the highest qualification standard in terms of vibration tests, temperature life cycles, ESD immunity and EMI compatibility.

A family of High-voltage Drivers and Controllers for large and medium size flat panel displays used in cockpit flight navigation instruments. Within the same products portfolio, single line LCD panels are also used for selective fiber optic switches in telecommunication instruments. These high end applications require the highest circuits accuracy as well as the highest qualification standard in terms of vibration tests, temperature life cycles, ESD immunity and EMI compatibility.

Our products also extend to Audio and Video applications where single chip all-in-one controllers are the only possible solution for such small size panels. Driven by the lack of space, our all-in-one controllers are specifically designed for Chip-On-Glass (COG) bonding where the fine output pads pitch is as low as 17um leading to the highest integration density with a typical fan-out of 1500 output pins.

These HVICs are dedicated for the state-of-the-art TFT-LCD technologies. Our product range offers simple High-Voltage gate drivers, 6 to 10-bit source drivers, analog RGB source drivers, Timing controllers, power management units as well as all in one drivers.

These HVICs are dedicated for the state-of-the-art TFT-LCD technologies. Our product range offers simple High-Voltage gate drivers, 6 to 10-bit source drivers, analog RGB source drivers, Timing controllers, power management units as well as all in one drivers.

521-9320 : Low Current, Diffused, Red. ABSOLUTE MAXIMUM RATINGS (TA=25�C) Power Dssipation (mW) Derating (mA/�C) From 92�C Forward Current (mA) Peak Current (mA) Pulse width 10 �s Operating Temperature (�C) Storage Temperature (�C) Soldering Temperature OPERATING CHARACTERISTICS (TA=25�C) Luminous Intensity (mcd) IF=2mA Peak Wavelength (nm) Peak Viewing Angle (2 Forward Voltage (V) IF=2mA.

MV8043 : Super Bright T-1 3/4 ( 5 MM ) Led Lamp - Water Clear. Popular T-1 3/4 package Super high brightness suitable for outdoor applications Solid state reliability Water clear optics Standard 100 mil. lead spacing NOTES: 1. Dimensions for all drawings are in inches (mm). 2. Lead spacing is measured where the leads emerge from the package. 3. Protruded resin under the flange mm (0.059") max. This T-1 3/4 super.

OL595N : 1550nm+/-20nm 40mW Pulsed MQW Laser Diode Coaxial Module With Smf.. 1550nm+/-20nm 40mW Pulsed MQW Laser Diode Coaxial Module with SMF. 1. a 1550nm Laser Diode in coaxial package with SMF. 2. Fiber output: Po=40mW Pulsed MQW FP Laser Coaxial package module Single mode fiber (SMF) 4.OPTICAL AND ELECTRICAL CHARACTERISTICS (TLD= 25�C, 10�s pulse width and 1% duty) Parameter Threshold Current Operation Current LD Forward.

LX1692AIPW : CCFL Backlight Controller IC For Wide Voltage Range Inverter Application (7V to 22V) Patent resonant strike for unsurpassed striking power combined with best efficiency Low Stress to transformers Excellent open circuit voltage regulation reduces transformer breakdown voltage requirements while striking higher voltage lamps One inverter for multiple.

NCP5604 : 3- or 4-output current mode Charge Pump LED driver The NCP5604A and NCP5604B products are multiple output LED drivers dedicated to the display back light. The NCP5604A drives up to 4 LEDs, the NCP5604B version being dedicated to the three LED applications. The two parts share a common built-in DC/DC converter, based on a charge pump structure, including.

2-5209570-0 : Fiber Optics - Attenuators; BOA 20DB DW D4/PC. s: Type: D4/PC, Singlemode, Dual Window ; Attenuation Value: 20dB ; Lead Free Status: Lead Free ; RoHS Status: RoHS Compliant.

NHD-0108CZ-FL-GBW : LCD Character Display Modules STN-GRAY Transfl 69.0 x 27.0. These custom and standard monochrome character and graphic LCDs from Newhaven Display have a wide variety of backlight color combinations. These devices feature a low power backlight, higher brightness per watt, wide operating temperature, positive and negative image options, as well as industry.

LO M67K-J2L1-24-Z : Standard LED - SMD Orange, 606nm 14mcd, 2mA. » » » LEDs - High Brightness - SMD - Amber/Orange LEDs - High Brightness - SMD - Amber/OrangeStandard SMD (surface mount device) LED components are often used in indication applications and generally have power levels s: Manufacturer: Osram Opto Semiconductor ; Product Category: Standard.

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.

TAINAN, Taiwan, May 16, 2008 (PRIME NEWSWIRE) -- Himax Technologies, Inc. ("Himax" or "Company") (Nasdaq:HIMX) today introduced its new generation single chip display driver, the HX8257, for use in GPS (Global Positioning System) and PMP (Portable Multimedia Player) devices.

The new chip is the world"s first single chip that features dynamic backlight control and supports WQVGA (480RGB x 272 and 480RGB x 240) resolutions for wide screen a-Si TFT LCD panels. The new chip supports 16 million colors using dithering technology. The HX8257 also successfully utilizes sequential channel driving technology to integrate gate driver IC, source driver IC, timing controller, power management and Himax"s patented CABC (Content Adaptive Backlight Control) into one single chip that is capable of driving panels in 4" to 5" diagonal. The HX8257 has been designed-in for many of our customers" devices and will be ready for mass production in the third quarter.

There is an increasing demand for portable devices such as GPS and PMP to adopt wide-screen panels which allow more information and multi-media content to be displayed. However, the adoption of wide screen panel increases the bill of material as a 4.3" panel, which supports higher WQVGA resolution, typically requires one gate driver and two source drivers, as compared to a QVGA panel, which requires only a single display driver. The HX 8257 helps customers lower bill of material costs in such 4" to 5" panels by using a single chip solution.

In addition, the HX8257 integrates unique features such as Himax"s patented CABC (Content Adaptive Backlight Control) technology, which fine-tunes backlight brightness by analyzing and processing the display content that would result in an up to 50% power saving in backlight power while maintaining a vivid display quality. The HX8257 supports power voltage as low as 1.8V -- the required standard for new generation GPS devices. Also, the HX8257 is built-in with OTP (One Time Programmable) capabilities which allow panel makers to adjust the VCOM voltage to improve the picture quality. The Gamma voltage also can be adjusted by using the built-in register in the HX8257, without the requirement of an external resistor.

Himax Technologies, Inc. designs, develops, and markets semiconductors that are critical components of flat panel displays. The Company"s principal products are display drivers for large-sized TFT-LCD panels, which are used in desktop monitors, notebook computers and televisions, and display drivers for small- and medium-sized TFT-LCD panels, which are used in mobile handsets and consumer electronics products such as digital cameras, mobile gaming devices and car navigation displays. In addition, the Company is expanding its product offering to include LCD TV chipset solution, power management ICs and LCOS microdisplays. Based in Tainan, Taiwan, the Company has regional offices in Hsinchu and Taipei, Taiwan; Ninbo, Foshan, Suzhou and Shenzhen, China; Yokohama, Japan; Anyangsi Kyungkido, South Korea; and Irvine California, USA.

Certain statements in this press release, including statements regarding expected future financial results and industry growth, are forward-looking statements that involve a number of risks and uncertainties that could cause actual events or results to differ materially from those described in this press release. Factors that could cause actual results to differ include general business and economic conditions and the state of the semiconductor industry; level of competition; demand for end-use applications products; reliance on a small group of principal customers; continued success in technological innovations; development of alternative flat panel display technologies; ability to develop and protect our intellectual property; pricing pressures including declines in average selling prices; changes in customer order patterns; shortages in supply of key components; changes in environmental laws and regulations; exchange rate fluctuations; regulatory approvals for further investments in our subsidiaries; and other risks described from time to time in the Company"s SEC filings, including its Form 20-F dated June 22, 2007, as amended. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

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For TFT-LCD panel manufacturing, gate driver circuit with amorphous silicon thin-film transistor (TFT-ASG circuit) plays an important role. In this paper, we propose two different ASG driver circuit topologies to improve crucial dynamic characteristics and then optimize them with circuit sizing by simulation-based evolutionary method which integrates genetic algorithm and circuit simulator on the unified optimization framework [1]. The first circuit consisting of fourteen a-Si:H TFT devices is designed for the specifications of the rise time

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Decades of application expertise and technology development at both Infineon and International Rectifier have produced a portfolio of gate driver ICs for use with silicon and wide-bandgap power devices, such as MOSFETs, discrete IGBTs, IGBT modules, SiC MOSFETs and GaN HEMTs. We offer excellent product families of galvanic isolated gate drivers, automotive qualifies gate drivers, 200 V, 500-700 V, 1200 V level shift gate drivers, and non-isolated low-side drivers.

Our portfolio spans a variety of configurations, voltage classes, isolation levels, protection features, and package options. State-of-the-art discrete switch families require tuning of gate drive circuits to take full advantage of their capacity and capabilities. An optimum gate drive configuration is essential for all power switches, whether they are in discrete form or in a power module.