AF-ACC-AG adjustment and calibration method and system based on TTL module

Abstract

The invention discloses an AF (Auto Flicker)-ACC (Auto Color Coordinate)-AG (Auto Gamma) adjustment and calibration method and system based on a TTL (Transistor TransistorLogic) module. The AF-ACC-AGadjustment and calibration method based on a TTL module includes the steps: configuring equipment parameters, AF, ACC, and AG adjustment parameters, white frame, and red, green and blue frame adjustment parameters; configuring binding points and corresponding register addresses; analyzing configuration, writing an initial value of a register into the module, acquiring the current optical parameters of the module, comparing the current parameters of the module with the target value, according to the IC characteristic and the AF-ACC-AG algorithm, rewriting the module register value, and performing loop execution until the current parameters of the module are in the error range of the target value; analyzing the white frame configuration, and performing white balance and Gamma adjustment on the white frame of the binding point until the current luminance value is in the error range of the target luminance value; reading back the luminance and chroma of the state of each binding point, according to the reading back result, performing fine adjustment until the luminance value and the chromatic value under the state of each binding point, and recording the register value corresponding toeach state; and solidifying the adjusted register value into EEProm of the TTL module. The AF-ACC-AG adjustment and calibration method and system based on a TTL module have the characteristic of highpercent of pass, and can improve the quality of the outgoing TTL module.

Description

technical field [0001] The invention relates to the field of display and testing of liquid crystal modules, in particular to an AF-ACC-AG adjustment method and system based on TTL modules. Background technique [0002] TTL signal is the only signal that can be recognized by TFT-LCD. Early digital processing chips are all TTL, that is, RGB is directly output to TFT-LCD. The TTL interface belongs to the interface that transmits data in a parallel manner. When using this interface, it is not necessary to use a dedicated interface circuit at the driver board end of the LCD display and the LCD panel end, but the TTL data signal output by the main control chip of the driver board passes through the cable. directly to the input interface of the LCD panel. Due to the high signal voltage of the TTL interface, many connections, and long transmission cables, the anti-interference ability of the circuit is relatively poor, and it is easy to generate electromagnetic interference (EMI). ...

AI Technical Summary

Problems solved by technology

In this way, the Flicker of the module can be adjusted very well, but because the white balance and Gamma use fixed data, due to the actual difference of the screen itself, some screens still have image quality problems such as color cast

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