A liquid crystal display module and its driving circuit

Abstract

The invention discloses a liquid crystal display module and a drive circuit thereof. The drive circuit of the liquid crystal display module comprises a backlight interface module, an input interface module, a channel conversion module and a drive module. The input interface module receives a backlight power source signal and outputs the backlight power source signal to the backlight interface module, and the input interface module further receives and outputs a 4-channel drive signal to the channel conversion module. The channel conversion module converts the 4-channel drive signal into an 8-channel drive signal and outputs the 8-channel drive signal to the drive module. The drive module lightens the liquid crystal display module according to the 8-channel drive signal. The channel conversion module converts the 4-channel drive signal into the 8-channel drive signal, the 2K liquid crystal display module is lightened, an interface communication protocol of a main board and the liquid crystal display module is simplified, the 2K liquid crystal module can be used through a low-configuration CPU chip, the use limitation of the 2K liquid crystal module is broken through, and the display module with higher distinguishability and a better display effect is applied more widely.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display module and a driving circuit thereof. Background technique [0002] Today's 2K resolution mobile phone LCD modules need to use MIPI 8-channel drive display, the interface protocol is as follows: data communication with the mobile phone platform through 2 pairs of clock, 8 pairs of date lines, but the existing modules use this communication interface There are the following disadvantages: 1. The requirements for the main control chip of mobile phones are very high, and the resources are very scarce. At present, only Qualcomm Snapdragon 800 can support it; 2. It is not conducive to market promotion, and many mobile phone companies do not have corresponding main control chip support; 3. Due to the large number of communication interfaces, the area required by the flexible circuit board is large and the cost is high; 4. The liquid crystal displ...

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Problems solved by technology

[0002] Today's 2K resolution mobile phone LCD modules need to use MIPI 8-channel drive display, the interface protocol is as follows: data communication with the mobile phone platform through 2 pairs of clock, 8 pairs of date lines, but the existing modules use this communication interface There are the following disadvantages: 1. The requirements for the main control chip of mobile phones are very high, and the resources are very scarce. At present, only Qualcomm Snapdragon 800 can support it; 2. It is not conducive to market promotion, and many mobile phone companies do not have corresponding main control chip support; 3. Due to the large number of communication interfaces, the area required by the flexible circuit board is large and the cost is high; 4. The liquid crystal display module factory cannot perform electrical testing on the product, and there is no mass production

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