15 xga tft lcd free sample

The products include LCD Panel of TN, HTN, STN, FSTN, CSTN; LCM of COB, COG, TAB, COF; Some Accessories like Backlight, Touch Panel and finish product--Digital Photo Frame. Those product use in a broad range of applications : in telecommunication, GPS, electronic medication, video and audio system, apparatus and meters, home appliances, personal digital assistant (PDA), mobile phones, scientific instruments and other electronic appliances. We have won the great reputation both at home and abroad.

Focus Displays offers a wide range of standard full color TFT displays. 64 million unique colors, high brightness, sharp contrast, -30C operating temperature, and fast response time are all good descriptions of a TFT display. This is why TFT technology is one of the most popular choices for a new product.

Thin Film Transistor (TFT) display technology can be seen in products such as laptop computers, cell phones, tablets, digital cameras, and many other products that require color. TFT’s are active matrix displays which offers exceptional viewing experiences especially when compared to other passive matrix technologies. The clarity on TFT displays is outstanding; and they possess a longer half-life than some types of OLEDs and range in sizes from less than an inch to over 15 inches.

CCFL’s are still available, but are becoming a legacy (obsolete) component. TFT displays equipped with a CCFL require higher MOQs (Minimum Order Quantities) than displays with LED backlights.

The majority of TFT displays contain a touch panel, or touch screen. The touch panel is a touch-sensitive transparent overlay mounted on the front of the display glass. Allowing for interaction between the user and the LCD display.

Some touch panels require an independent driver IC; which can be included in the TFT display module or placed on the customer’s Printed Circuit Board (PCB). Touch screens make use of coordinate systems to locate where the user touched the screen.

Resistive touch panels are the lowest cost option and are standard equipment on many TFT modules. They are more common on smaller TFT displays, but can still be incorporated on larger modules.

Contrast ratio, or static contrast ratio, is one way to measure the sharpness of the TFT LCD display. This ratio is the difference between the darkest black and the brightest white the display is able to produce. The higher the number on the left, the sharper the image. A typical contrast ratio for TFT may be 300:1. This number ratio means that the white is 300 times brighter than the black.

TFT LCD displays are measured in inches; this is the measurement of the diagonal distance across the glass. Common TFT sizes include: 1.77”, 2.4”, 2.8”, 3”, 4.3”, 5”, 5.7”, 5.8”, 7”, 10.2”, 12.1 and 15”.

TFT resolution is the number of dots or pixels the display contains. It is measured by the number of dots along the horizontal (X axis) and the dots along the vertical (Y axis).

Certain combinations of width and height are standardized and typically given a name and a letter representation that is descriptive of its dimensions. Popular names given to the TFT LCD displays resolution include:

Transmissive displays must have the backlight on at all times to read the display, but are not the best option in direct sunlight unless the backlight is 750 Nits or higher. A majority of TFT displays are Transmissive, but they will require more power to operate with a brighter backlight.

A primary job of the driver is to refresh each pixel. In passive TFT displays, the pixel is refreshed and then allowed to slowly fade (aka decay) until refreshed again. The higher the refresh frequency, the sharper the displays contrast.

The TFT display (minus touch screen/backlight) alone will contain one controller/driver combination. These are built into the display so the design engineer does not need to locate the correct hardware.

If you do not see a Thin Film Transistor (TFT) Display module that meets your specifications, or you need a replacement TFT, we can build a custom TFT displays to meet your requirements. Custom TFTs require a one-time tooling fee and may require higher MOQs.

Ready to order samples for your TFT design? Contact one of our US-based technical support people today concerning your design requirements. Note: We can provide smaller quantities for samples and prototyping.

Exemplifying these trends, among the most recent offerings from 4D Systems is its uLCD-90DT/DCT series with 9.0″ Diablo16 Integrated Display Modules designed specifically to cater to the growing demand for physically large displays. The display is part of the microLCD range of modules designed and manufactured by 4D Systems. Visually, the 9.0″ is designed to provide a pleasing aesthetic experience, with 800×480 resolution and RGB 65K true-to-life colors. This generous size makes the unit well suited across a range of projects that require increased display space, says the company.

The ULCD-90DCT module features a 9.0″ color TFT LCD display, with resistive touch (DT) or capacitive touch (DCT) (Figure 1). It is powered by the 4D Systems Diablo16 graphics processor, which offers an array of functionality and options suited for both embedded engineers and makers. Other features include touch detection, microSD memory storage, GPIO and communications, along with multiple millisecond resolution timers and audio generation.

Displays for space-constrained embedded systems must be able to work seamlessly with simple MCU-kinds of interfaces. Along just those lines, in April Newhaven Display released its 2.4″ premium line TFTs. The company enhanced its 2.4″ TFT displays with SPI to allow for more flexibility in embedded designs and faster data transfer than I2C.

These displays deliver crisp images at 240×320 resolution with a powerful LED backlight, plus a built-in controller for easy communication with any MCU, says the company (Figure 2 top). The 3.3V LCDs have a 3-line/4-line SPI interface and an FFC (flexible flat cable) connector. The unit supports MVA viewing angles (70 degrees) and boasts a high-brightness white LED backlight (850cd/ m2). These transmissive displays support wide temperature operation from -20°C to 70°C and are RoHS compliant.

In March, Newhaven Display rolled out its 4.3″ IPS TFT line of displays, with multiple versions to choose from. The displays are available in HDMI, mountable and EVE2 versions with the option for capacitive touch screens (Figure 2 bottom). According to the company, the IPS displays provide wider viewing angles and more accurate color reproduction for the most premium, high quality images on any TFT. The 4.3″ IPS TFTs deliver images in a crisp 800×480 resolution—that’s almost double the resolution of standard TFT LCDs, says Newhaven Display.

IPS (in-plane switching) technology acts on the liquid crystals inside an LCD so when voltage is applied, the liquid crystal rotates in parallel (or in-plane) allowing the light to pass through instead of turning upright. This behavior of the crystals greatly improves many viewing aspects of the display. Compared to regular TN panels, IPS is superior in color, viewing angles and these TFTs can even handle direct sunlight due to their high brightness.

The company has developed a full line of 4.3″ TFT displays with IPS technology to enhance the viewing experience of embedded applications. The 4.3″ IPS TFT is the standard edition and provides the same powerful, reliable performance with the upgraded visuals and viewing angles of in-plane switching and the option for a capacitive touch screen. The 4.3″ HDMI IPS TFT features the plug-and-play accessibility of an integrated Texas Instruments (TI) controller built in to the IPS TFT. These HDMI TFTs work seamlessly with Raspberry Pi to enable embedded developers to get started faster with Windows and Linux.

Newhaven Displays 4.3″ Mountable IPS TFT lets you safely secure your IPS TFT to any application. These mountable displays are rack height ready and compatible with standard M3 screws, so there’s no guesswork when it comes to installation. And finally, the 4.3″ EVE2 IPS TFT provides capacitive touch interaction powered by Bridgetek’s video engine and open source software.

For embedded systems displays, part of the challenge is not just the product specs themselves. It’s also about features that make it easier to do system integration and GUI development. An example along those lines is the most recent offering from Noritake. Noritake’s GTWV050C3A00PA is a command-controlled touch TFT module designed to facilitate quick embedded GUI development and reduce system costs with powerful built-in commands.

The GTWV050C3A00PA module consists of a 5″ high brightness TFT panel (800×480-pixel resolution), a 5VDC single power supply, a FLETAS-brand metallized projective capacitive touch (MPCT) panel and all the necessary drive circuitry (Figure 3). The mounted FLETAS touch panel has high touch sensitivity that can operate accurately in demanding environments. Touch works with gloves and up to a 5mm acrylic overlay (with 0.5mm air-gap).

The GTWV050C3A00PA integrates a high-quality PCB design intended for industrial applications and a high brightness 1,000cd/ m2 5″ TFT panel. The display has adaptive sensitivity that works with gloved hands, water droplets and thick overlays. On-board flash memory available to store many images and fonts.

In an example along those lines, in February Axiomtek announced the GOT115-319, a 15″ fanless touch panel computer. It is powered by the Intel Celeron processor N3350 or Intel Pentium processor N4200 with the Intel GFX controller onboard. The GOT115-319 has an XGA TFT LCD display with 1024×768 resolution and a choice of a projected capacitive multi-touch or resistive touch touchscreen (Figure 5). It also has 300 nits of brightness and an LED backlight. It is feature-rich, flexible and rugged for use in multimedia kiosks or as a human machine interface (HMI) for smart manufacturing and retail applications.

The ultra-slim GOT115-319 features a thickness of only 50mm for use in space-constrained environments, says Axiomtek. Its I/Os include two GbE LAN ports, one RS-232 port, one RS-232/422/485 port with RI/5V/12V selectable by BIOS, two USB 3.0 ports, two USB 2.0 ports and one Line-out. Other features include one power button, one remote power switch and one screw-type connector for power.

The GOT115-319 has an easily accessible external switch for AT/ATX mode selection, and built-in speakers and microphone for multimedia applications. For expandability, the touch panel computer has one full-size PCI Express Mini Card slot and one M.2 Key E slot for RFID and wireless network module installation. It is equipped with one 204 pin DDR3L-1600 SO-DIMM with up to 8GB of memory.

The GOT115-319 also offers one 2.5″ SATA HDD/SSD, one mSATA and one MicroSD card for storage. For reliable operation in harsh environments, it features an IP65-rated front bezel, wide operating temperature range of 0°C to +50°C and vibration endurance for up to 2G. The thin touch panel PC can be mounted on a panel mount, wall mount, VESA arm or desktop stand.

LCD display doesn’t operate the same way as CRT displays , which fires electrons at a glass screen, a LCD display has individual pixels arranged in a rectangular grid. Each pixel has RGB(Red, Green, Blue) sub-pixel that can be turned on or off. When all of a pixel’s sub-pixels are turned off, it appears black. When all the sub-pixels are turned on 100%, it appears white. By adjusting the individual levels of red, green, and blue light, millions of color combinations are possible

The pixels of the LCD screen were made by circuitry and electrodes of the backplane. Each sub-pixel contains a TFT (Thin Film Transistor) element.  These structures are formed by depositing various materials (metals and silicon) on to the glass substrate that will become one part of the complete display “stack,” and then making them through photolithography. For more information about TFT LCDs, please refer to “

The etched pixels by photolith process are the Native Resolution. Actually, all the flat panel displays, LCD, OLED, Plasma etc.) have native resolution which are different from CRT monitors

Although we can define a LCD display with resolution, a Full HD resolution on screen size of a 15” monitor or a 27” monitor will show different. The screen “fineness” is very important for some application, like medical, or even our cell phone. If the display “fineness” is not enough, the display will look “pixelized” which is unable to show details.

But you see other lower resolution available, that is because video cards are doing the trick. A video card can display a lower LCD screen resolution than the LCD’s built-in native resolution. The video cards can combine the pixels and turn a higher resolution into lower resolution, or just use part of the full screen. But video cards can’t do the magic to exceed the native resolution.