Method for making display device picture equalization and display device for making picture equalization

Abstract

The present invention discloses a kind of display device configured in array mode and with several grid lines, several data lines, switch module and pixel unit in each of the cross points between the scanning line and the data line. The display device includes grid driving unit to provide several grid voltages successively to the grid lines to drive the switch module, data driving unit to feed corresponding video data, and control unit to control the transmission order of the video data to the data lines. The method of the present invention includes the following steps: for the grid driving unit to provide N scanning signals to the scanning lines and for the data driving unit to switch the transmission order of the video data.

Description

technical field [0001] The invention relates to a method for uniformizing the picture of a display device and a display device for making the picture uniform, especially a display device for a personal computer, which can make the picture of the display device uniform by switching the transmission order of video data change. Background technique [0002] In recent years, due to the increase in the manufacturing yield of LCD (Liquid Crystal Display), coupled with the characteristics of lightness, thinness, low power consumption and low radiation of LCD, LCD has gradually replaced the traditional CRT screen and has become a widely used A flat-panel display, the basic principle of the LCD is two panels with several electrodes on the panel to generate an electric field, and a liquid crystal layer between the two panels and two polarizing plates attached to the outer surface of the individual panels, The brightness of the light output of the LCD is controlled by the voltage appl...

AI Technical Summary

Problems solved by technology

The gate drive unit drives all G1 to Gn once, and the video data is sent to the corresponding pixel unit 13 within a limited time period. Theoretically, the picture to be displayed can be fully achieved, but in practice, this time-sharing driving method will cause A serious problem, as an example, when the video data are all grayscale signals, they have the same video voltage value, theoretically each pixel unit 13 will be charged to the same video voltage value, but due to the time-sharing drive Each pixel unit can only be charged to the video voltage value within the second time period T1. For example, when G1 is driven, the data drive unit 10 will turn on D1 to send video data within a second time period T1, corresponding to The pixel unit 13 is charged. After the second time period T1, turn off D1 and turn on D2 to send video data, but at this time the gate of the TFT12 connected to D1 is still open, so the data line D1 can still be connected to the The pixel unit 13 is charging (chargesharing), until the gate of the TFT12 is not driven, the action of charging is stopped, which will cause the charging time of each pixel unit on the same gate line 21 to be different, so the first one that is turned on first The charging time of the pixel unit will be longer than the charging unit of the second pixel unit, so the stack

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