Industry Information

Update September 27, 2020

TFT-LCD Display

1. Principle of Segment LCD LCD drive is not like LED, add voltage (LED is actually current drive) can display for a long time. LCD driver must use AC voltage drive to maintain a stable display. If a...

Update September 25, 2020

LCD touch screen principle

LCD touch screen principle The first feature of the touch screen: transparency, which directly affects the visual effect of the touch screen. There is a problem of transparency. Infrared technology...

Update September 24, 2020

LCD

The abbreviation of LCD in English is Liquid Crystal Display, which is a kind of flat display. The liquid crystal display uses a liquid crystal solution in two pieces of polarized material, and when...

Update September 23, 2020

grayscale on LCD and LCD display

How to achieve grayscale on LCD As we all know, the display effect of the liquid crystal is determined by the effective voltage applied to the liquid crystal. There are two ways to achieve grayscale...

Update September 22, 2020

LCD principle

The working principle of LCD When the liquid crystal is energized, the liquid crystal molecules are arranged in an orderly manner, allowing light to pass through easily; when not energized, the...

Update September 21, 2020

LCD common interface principle

LCD common interface principle 1. TTL TTL (Transistor Transistor Logic), and TTL level signals are generated by TTL devices. TTL devices are a major category of digital integrated circuits. They are...

Update September 18, 2020

The principle of surface acoustic wave touch screen

Take the X-axis transmitting transducer in the lower right corner as an example: The transmitting transducer converts the electrical signal sent by the controller through the touch screen cable into...

Update September 17, 2020

Comparison of four-wire resistive touch screen and five-wire resistive touch screen

OneTouch -4W four wire resistance In the standby state, the CPU alternately supplies the +5 voltage to the upper y-axis and the lower x-axis at a very fast frequency. When one layer is conductive,...

Update September 16, 2020

TFT-LCD display principle

What is LCD We generally think that objects have three states: solid, liquid, and gas. In fact, this is only for water. There are some organic compounds and the state between solid and liquid. When...

Update September 15, 2020

TFT-LCD working principle

Optical and electrical properties of liquid crystal Since the structure of liquid crystal molecules is anisotropic, the photoelectric effect caused will be different due to different directions....