液晶盒闪屏改善机理研究OA

The display panel will cause charge residual accumulation in the process of cutting,lighting multiple times,polarizer attachment test or module production,and the failure to release the residual charge in the LCD state will lead to the flashing screen.Through physical observation,program debugging,high-temperature static,flashing screen phenomenon recurrence and other experiments,the flashing screen improvement mechanism is verified.To upgrade the module of the existing lighting fixture(voltage generator and extended discharge module),it is proposed,firstly,to reduce the pixel charging time by increasing the refresh frequency;Secondly,to reduce the pixel charge by reducing the data signal voltage;And finally,to ensure the complete release of charge in the pixel by prolonging the pixel discharge time.Through combining the above improvement measures,the LCD splash screen defect will be completely improved(the bad incidence rate is 7%),and the product yield can be effectively improved.