LCD Module Driver

LED display is a display device composed of light-emitting diodes. It uses low voltage scan drive, with: less power consumption, long service life, low cost, high brightness, less fault, large viewing Angle, long viewing distance and so on.

IPS(IN-PLANE-SWITCHING, in-board switching) technology, which claims to allow up and down left and right visual Angle to reach a larger 170 degrees.

Although the IPS technology increases the viewing Angle, the use of two electrodes to drive the liquid crystal molecules requires greater power consumption, which will increase the power consumption of the liquid crystal display. In addition, the fatal is that the response time of liquid crystal molecules driven in this way will be slow.

1, the principle of LCD LCD module concept: LCD: full name is LiquidCrystalDisplay LCD LCM: full name is LiquidCrystalModule refers to the liquid crystal display module, including the LCD screen and the peripheral FPC circuit and structural parts of the LCD.

2, LCD module driver overview: LCD module driver debugging, is a very important part of the entire mobile phone research and development process, in the early stage of each new model development, the first to debug the LCD module driver, we commonly known as "point screen".

The debugging of "spot screen" includes two parts, one is to light the LCD backlight, and the other is to debug the LCD display. The methods and techniques of backlight drive debugging will be described in the backlight documentation.

3, LCD peripheral circuit: we are usually referred to as the LCD circuit, referring to the baseband end of the LCD interface circuit, this part of the circuit is designed by us.