epson tft lcd controller free sample

mbed is a well-known software platform for ARM® based microcontrollers. It provides the tools and developer ecosystem necessary to create standards-based solutions for any kind of application, but with particular focus on Industrial applications. Further information is available on the mbed website at www.mbed.com.

In order to use the S1D13781 Shield TFT board with mbed compatible microcontroller boards, some small modifications are required. Epson provides an easy to follow guide that details the required modifications. Also available is a simple graphics library designed to work with the mbed compilier, and instructional videos to help new users get started. These resources are available on Epson"s website here. The S5U13781R01C100 board has been successfully tested with the ST Microelectronics Nucleo F303RE, F401RE and F411RE mbed compatible boards.

The S1D13781 Shield TFT Board adds support for up to WQVGA TFT graphics to the mbed™ based platform and provides a software library of simple graphics functions. It is designed to provide evaluation of the S1D13781 LCD controller and enables rapid prototyping on the mbed ™ compatible board. It uses the mbed™standard SPI interface, providing a simple hardware connection which is powered by the mbed™compatible board. The S1D13781 Shield board includes two FPC connectors (40-pin and 54-pin) which can be used to connect to a WQVGA or QVGA TFT panel available separately.

The S1D13781 is a simple, multi-purpose Graphics LCD Controller with 384KByte embedded SRAM display buffer which supports RGB interface TFT panels. The embedded display buffer allows WQVGA up to 480x272 at 24bpp, or 480x272 at 16bpp (Main Layer) and 480x272 at 8bpp (PIP Layer) for two layer display. The S1D13781 is a flexible, low power, single chip solution designed to meet the demands of embedded markets and devices where total system cost and battery life are major concerns.

The S1D13781 Shield TFT Board can also be used to evaluate the low cost S1D13L01 LCD Controller which shares the same features as the S1D13781 except for BitBLT functionality*.

The S1D13781 Shield Graphics Library is used with the mbed online compiler to provide hardware access and simple graphics routines which enable users to quickly display graphics and text to a LCD panel connected to the S1D13781 Shield TFT Board.

The S1D13781 Shield TFT Board adds support for up to WQVGA TFT graphics to the Arduino Due and provides a software library of simple graphics functions. It is designed to provide evaluation of the S1D13781 LCD controller and enables rapid prototyping on the Arduino Due board. It uses the Arduino Due"s standard SPI interface, providing a simple hardware connection which is powered by the Arduino Due board. The S1D13781 Shield board includes two FPC connectors (40-pin and 54-pin) which can be used to connect to a WQVGA or QVGA TFT panel available separately.

The S1D13781 is a simple, multi-purpose Graphics LCD Controller with 384KByte embedded SRAM display buffer which supports RGB interface TFT panels. The embedded display buffer allows WQVGA up to 480x272 at 24bpp, or 480x272 at 16bpp (Main Layer) and 480x272 at 8bpp (PIP Layer) for two layer display. The S1D13781 is a flexible, low power, single chip solution designed to meet the demands of embedded markets and devices where total system cost and battery life are major concerns.

The S1D13781 Shield TFT Board can also be used to evaluate the low cost S1D13L01 LCD Controller which shares the same features as the S1D13781 except for BitBLT functionality*.

The S1D13781 Shield Graphics Library is used with the Arduino Sketch IDE to provide hardware access and simple graphics routines which enable users to quickly display graphics and text to a LCD panel connected to the S1D13781 Shield TFT Board.

This reference design includes the following hardware. The connections between the STM32VL-Discovery and S5U13781R00C100, and the listed panels have been tested and confirmed by Epson. The Epson provided sample software and demonstration guide allow quick and easy evaluation of the LCD system.

You can use the all the LCD panels listed at LCD Connection Guides for this reference design. Connection guides are available for Optrex, ORTUSTECH, Zettler, TOPWAY, etc.

Single-chip LCD controllers featuring built-in display memory allowing for low power consumption, low noise, and space-saving ability. These products have more features than Simple LCD Controllers which makes them ideal for display control of mobile terminals and operation panels.

Single-chip LCD controllers with built-in display memory and a simplified function set. These products are ideal for a wide variety of applications that require simple LCD display.

LCD controllers providing support for a wide range of small to large size panels. The external memory option allows the memory size to be cutomized based on the target application. These products are most suitable for display control of OA or FA equipment operation panels, as well as some automotive (in-vehicle) devices.

LCD Controllers incorporating a camera interface which allows the LCD controllers to display camera images on the panel without placing a load on the CPU. These products are excellent choices for display control of a wide variety of applications such as mobile terminals and security devices.

LCD Controller allowing for reception of display data and transmission of touch-screen coordinate data at high speed via USB2.0-HS. This product is most suitable for applications on OA equipment such as multi-functional printers with long lengths of cabling between the host CPU and LCD panel. It is also ideal for in-vehicle devices such as rear entertainment displays.

Epson Display Controllers reduce the load on the main CPU by off-loading the display process to a discrete display controller. The controllers combine high-speed display output with additional features that add capability to both new and revised designs, while maintaining industry leading low power consumption. Epson Display Controllers offer excellent solutions for embedded equipment, mobile terminals, automotive equipment, and a wide variety of other applications.

Easy TFT display control, combining XMC™ microcontroller with EPSON S1D13781 TFT CTRL IC. The S1D13781 embedded graphic accelerator and video memory is controlled by EPSON’s free-of-charge Graphics Library/API running on XMC™ MCU. System resource free-up, scalability up to 7“ displays and 800x480 resolution, and exciting HMI experience are only some of the benefits.

Epson display controllers reduce the load on the main CPU in drawing process. The original image processing engine performs high-speed drawing while achieving the industry’s top class low power consumption.

Epson LCD drivers, developed from the display ICs for digital watches, have been driving display panels of mobile phones around the world. Our many years of technological expertise have yielded a number of LCD driver options for diverse LCD panels.

Simple LCDC series is applicable to TFT LCD panel from QVGA up to WVGA resolution and suitable for FA controller, medical instrument, measurement equipment and OA applications.

Seiko Epson Corporation (“Epson”) has begun shipping samples of the S1D13709, a new display controller IC with built-in memory that is capable of easily controlling the display of both text and graphics on color TFT[1] and STN[2] LCD panels. This display controller is ideal for control panels used on factory automation equipment and office equipment such as printers and multifunction units.

STN panels are often used as control panels on factory automation systems and office equipment, but demand for color TFT panels in these applications has been growing in recent years because of their good visibility and greater powers of expression. The new S1D13709, with built-in CGROM[3], can enable such popular features as mixed text and graphics, overlays, and smooth scrolling (vertical and horizontal) on both STN and TFT LCD panels. In addition, since memory for the display is built-in, no external memory is needed. This saves space and design work for users. The software of the new S1D13709 is compatible with that of the S1D13700, Epson’s previous display controller IC for monochrome STN LCD panels. This makes it easy for S1D13700 users to migrate to color TFT LCD panels.

Going forward, Epson intends to leverage its unique set of compact, energy-saving, and high-precision technologies to help enrich society by providing products and services that solve real issues for customers.

Users of the S1D13700, Epson’s previous display controller IC for monochrome STN display panels, can use the new S1D13709 with their existing software to control color TFT LCDs (some restrictions apply).

Seiko Epson Corporation started supplying its latest display controller IC reference design compatible with the Arduino Due open source hardware platform. This new reference design will support the development of products using small- and medium-sized TFT LCD panels, providing significantly shorter development times and a lower cost evaluation environment.

The reference design includes an evaluation board with an integrated S1D13781 LCD controller IC manufactured by Epson and a software library providing simple graphics functions. The S1D13781 Shield TFT evaluation board is compatible with Arduino Due. Both this evaluation board and the software library were developed to be compatible with the Arduino Due environment, providing a simple hardware connection that allows the evaluation board to be powered by Arduino Due, and with simple software installation and usage. The evaluation board includes two FPC connectors (40-pin and 54-pin) that can be used to connect to separately available WQVGA (480×272 dot) or QVGA (320×240 dot) TFT panels.

The S1D13781 Shield TFT evaluation board can also be used to evaluate the low cost S1D13L01 LCD controller that shares the same features as the S1D13781, except for BitBLT functionality. The evaluation board is available for purchase from online shops from September. Sample software can be downloaded free-of-charge from Epson with user registration.

“Going forward, Epson will continue to release display controller IC reference designs,” said Kazuhiro Takenaka, deputy chief operating officer of Epson’s Microdevices Operations Division. “Our aim is to help our customers by supporting higher resolution small- and medium-sized TFT LCD panels and evaluation boards with other microcontrollers.”

Seiko Epson and E Ink Corporation today announced a new jointly developed display controller IC. The S1D13524 is a high-performance EPD controller with a built-in color processor for E Ink"s VizplexTM-enabled electronic color paper displays. Targeting color and very high resolution B&W applications, the new IC is based on the same powerful engine as the first two models, the S1D13521 and the S1D13522, but also includes a color processor that allows simple customization.

Found in most major electronic reader devices, Epson EPD controllers and E Ink"s EPD low-power consumption screen technology have been key factors in the rapid growth of the eReader market and the expanding range of mobile applications, such as eBooks, eNewspapers, tablet PCs, laptop secondary displays, eNotebooks, and eDictionaries.

The new Epson display controller includes a high-performance color engine that can be easily configured to match customers" color and CFA needs. It has a built-in dither function to minimize host overhead, and can be connected to any host processor through a 16-bit parallel or TFT LCD bus.

As with all Epson EPD controllers, the S1D13524 allows multiregional and concurrent display updates. The advanced sequencer engine, power management, I2C thermal sensor and serial flash support a variety of popular functions.

"For image-rich information applications showing charts, graphs, maps, photos, comics and advertising, E Ink color capable displays enable an ultra low power and high mobility device with a paper-like experience. Epson has been a key partner for many years and the new color controller is an exciting new addition to their strong product line," said T.H. Peng, executive vice president of E Ink Corporation.

"Epson has been the market leader for the E Ink EPD controllers for the past few years. Now, by adding this innovative color EPD controller to our product family, we believe Epson can create a new market for EPD displays in partnership with E Ink Corp. Today, we already have customers waiting for our new controller and are delighted to have the opportunity to help them launch their products to the market," said Ryuhei Miyagawa, chief operating officer of Epson"s Semiconductor Operations Division.

Yingjian Liu, chairman of Hanvon Technology Co., Ltd, a leading eReader provider said, "Epson and E Ink"s color EPD controller is a revolutionary innovation in the eReader industry. Thanks to this breakthrough technology announcement, eReader lovers will now be able to enjoy reading colorful eNewspapers and eTextbooks. This new innovation will help expand the contents for eReaders, thereby helping to preserve the environment and changing the way in which people obtain information." Hanvon is planning to launch its own colorful eReader at the end of the year.

The S1D13524 is the ideal choice for E Ink color EPD designs and design upgrades. Samples of the Epson S1D13524 will be available in June. Sample price is $24. Production quantities will be available in Dec 2010.

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

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

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

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

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

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

In 2004, Hydis Technologies Co., Ltd licensed its AFFS patent to Japan"s Hitachi Displays. Hitachi is using AFFS to manufacture high end panels in their product line. In 2006, Hydis also licensed its AFFS to Sanyo Epson Imaging Devices Corporation.

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

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

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

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

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

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

With analogue signals like VGA, the display controller also needs to perform a high speed analog to digital conversion. With digital input signals like DVI or HDMI some simple reordering of the bits is needed before feeding it to the rescaler if the input resolution doesn"t match the display panel resolution.

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

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