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touch screen display:

Made In China Custom 7-inch 800×480 LCM Module Wide Temperature High Brightness 450cd/m2 50pin RGB TFT LCD Module 5Touch Glass+Glass IIC I2C Projectvie Capacitive Touchscreen Display

7 Inch 800×480 TN TFT LCD LCM Module PCAP Multi Points IIC I2C Capacitive Touchscreen Monitor

Technical Datasheet Download: CTP WTY070144A20 Mechanical Drawing

Technical Datasheet Download: LCD WTY070QW71A01 Specification

The touch screen display  (Model No. WTY070144A20LM) is of a color tft lcd display panel with 800×480 resolution and standard 50pin RGB interface, which support sunlight readable, high brightness, tape bonding, wide temperature. The touch panel is of a G+G structure capacitive touch panel, which is composed of a cover glass, sensor glass, driver IC and FPC. It is driven by a GOODIX GT911 IC Chip, which utilizes an I2C interface and supports 5 points touch.

1. Image principle of TFT LCD screen

The image principle of tfd display is very simple. The display screen is composed of many pixels that can emit light of any color. As long as each pixel is controlled to display the corresponding color, the purpose can be achieved. Backlight technology is generally used in TFT LCD. In order to accurately control the color and brightness of each pixel, a shutter-like switch needs to be installed behind each pixel. When the “shutter” is open, the light can pass through, but when the “shutter” is closed, the light cannot pass through. Of course, technically, it is not as simple as just mentioned.

2. Liquid crystal characteristics of TFT LCD screen

TFT LCD screen takes advantage of the characteristics of liquid crystal (when heated, it is liquid, when cooled, it crystallizes into solid). Generally, there are three forms of liquid crystal: layered liquid crystal similar to clay, filamentous liquid crystal similar to thin matchstick, and cholesterol like liquid crystal. TFT LCD screen uses filamentous liquid crystal. When the external environment changes, its molecular structure will also change, so it has different physical properties. It can achieve the purpose of allowing light to pass through or blocking light, which is just like the shutter. You know three primary colors. Therefore, each pixel on the TFT LCD screen needs three similar basic components described above to control red, green and blue colors respectively.

 

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  • After years of development, in order to better integrate the company’s resources and provide customers with the most advantageous products, in 2016, all the Shenzhen production lines were relocated to Yongzhou, Hunan province. At present, Shenzhen office and Hunan factory have a total of more than 500 employees, with more than 20,000 square meters of standard clean plant.
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  • Latest News touch screen display manufacturer
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