tft display rgb interface free sample

FocusLCDs.com sent me a free sample of a 4x3” TFT LCD (P/N: E43RG34827LW2M300-R) to try out. This is a color active matrix TFT (Thin Film Transistor) LCD (liquid crystal display) that uses amorphous silicon TFT as a switching device. This model is composed of a Transmissive type TFT-LCD Panel, driver circuit, backlight unit. The resolution of a 4.3” TFT-LCD contains 480x272 pixels, and can display up to 16.7M colors.

For this project, you would need the RA8875 driver board (available at AdaFruit for US$35) to interface the TFT display to the Arduino. It comes with a header which you can solder on as needed.

If none of these part numbers meet your requirements in terms of brightness, interface, or connection method, please email us at info@orientdisplay.com.

If none of these part numbers meet your requirements in terms of brightness, interface, or connection method, please email us at info@orientdisplay.com.

Each pixel of a TFT LCD is made up of three subpixels. One each for red, green, and blue. Each of these subpixels has an individual transistor from the thin film transistor layer that controls the amount of current at the subpixel. The liquid crystals for each subpixel are affected by the voltage level at the transistor, which causes their structure to change relative to the voltage level. Different liquid crystal structures allow different amounts of light from the backlight through the subpixel. Then the color filter makes that light either red, green, or blue. The colors from the three subpixels combine to create the desired color.

Color depth refers to the number of different possible displayable colors. The LCD controller chip in the tail of our RGB TFTs dictates that display’s color depth. The chips accept and control a certain number of steps for each color. This will be described in our datasheet as well as the LCD controller datasheet. The color depth may not be directly stated, but instead be referred to as ___-bit RGB. For example:

When combined with a higher resolution, some display controllers do not support full color on different interfaces. Usually, I2C is the first one out followed by SPI, then parallel, then RGB

Confusingly, RGB can refer both to a display using RGB color and to the display using an RGB interface. The RGB interface typically writes image data directly from the 16 to 24-bit RGB databus to the display without storing it. This differs from MCU Interfaces such as 6800 or 8080 parallel, which use read/write/enable signals to write data to device memory, and typically uses 8 to 18 bit data transfers.

Some RGB interface displays require a SPI initialization to ensure the display settings are correct, while others have no way to send commands to the controller.

Due to the large number of GPIOs required to control an RGB interface display, we use the EVE chip to bring up our RGB displays in-house. The EVE family of displays allows interfacing to be done in SPI while still achieving the quick data transfer possible with the RGB interface.

1. Professional Manufacturer in LCD Display: Hongxian Technology Co., Ltd. specializes in customizing high-end LCD display, which is widely used in military industry, security, vehicle audio-visual, medical, reverse rearview mirror, industrial control equipment, smart home, visual doorbell, building elevator advertising, SIP telephone and so on.2. Accept Customization Order:We aim to provide customers with great product solutions. In order to better serve our valuable customers, we accept the customization order of the driver board, touch screen of AV, VGA, MCU, etc.

As the global production base and Asia headquarter, ZETTLER China, located in Xiamen, provides a diversified range of high-quality electronic components and solutions in Displays, Magnetics and Relays. Our products have been designed and manufactured to cover a wide spectrum of applications in many industries, such as home appliances, industrial controls, HVAC/R, lighting, energy management, automotive, medical, aviation, solar, e-mobility and many other types of electric and electronic equipment.