Patent ID: 8159253
Filing Date: 2012-04-17
Classification: G02F,G09G

Abstract:
1. A method for manufacturing a liquid crystal display (LCD), the method comprising: providing an LCD panel comprising a common voltage initialization circuit; testing and inspecting the LCD panel for defects of the LCD panel, and thereby obtaining a preferred common voltage for the LCD panel; and mounting a driving integrated circuit on the LCD panel, the driving integrated circuit being connected to the common voltage initialization circuit, wherein the process of testing the LCD panel is performed by a testing device comprising an image generator, a sensor, and a testing machine, and the testing and inspecting of the LCD panel comprises: generating flicker test image signals by the image generator; providing the flicker test image signals to the LCD panel via the testing machine; looking for defects of the LCD panel when images with different gray-scales are displayed on the LCD panel; inspecting images displayed on the LCD panel and generating a flicker signal according to a degree of flicker of the LCD panel, by the sensor; providing the flicker signal to the image generator; adjusting the common voltage provided to the LCD panel by the image generator according to the flicker signal in order to achieve the preferred common voltage; providing parameters representing the preferred common voltage to the testing machine; and writing the parameters to the common voltage initialization circuit of the LCD panel by the testing machine.