Crystal display device array substrate and driving method thereof

Abstract

The invention relates to an LCD basal array and a driving method thereof. The basal array includes a substrate basal array, sub-pixel electrodes, datawires and scanning lines, which are in the same row. The sub-pixel electrodes in the same row are connected with one datawire and each datawire is connected with two rows of the sub-pixel electrodes. The sub-pixel electrodes in the same line are separately connected with the two scanning lines alternately in pairs and the sub-pixel electrodes connected with the same scanning line are positioned in the same line. Two sub-pixel electrodes in the same line between the two contiguous datawires are connected with the same scanning line and separately connected with the two datawires. The driving method includes the following steps of: inputting video data signals and sequentially driving the sub-pixel electrodes alternately connected with the two scanning lines in pairs via the two scanning lines when driving each row of the sub-pix electrodes. The invention uses the technical proposal that the two rows of sub-pixel electrodes share one datawire, thus greatly reducing the consumption of the required datawires and the data driving chips and the whole cost of the LCD device.

Description

technical field [0001] The invention relates to an array substrate of a liquid crystal display device and a driving method, in particular to an array substrate of a thin film transistor liquid crystal display device and a method for driving a driving circuit on the array substrate. Background technique [0002] Thin Film Transistor-Liquid Crystal Display (Thin Film Transistor-Liquid Crystal Display, hereinafter referred to as TFT-LCD) is one of the most widely used flat panel displays at present. TFT-LCD generally includes a liquid crystal display panel, a scan drive circuit and a data drive circuit. Wherein, the liquid crystal display panel includes a color filter substrate and a TFT array substrate arranged in opposite boxes, and a liquid crystal layer sandwiched between the two substrates, and a scanning driving circuit and a data driving circuit are respectively connected to the TFT switching elements on the array substrate. As shown in Figure 1, it is a schematic struc...

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Problems solved by technology

[0004] But the main problem that exists in above-mentioned technology is: first, for TFT-LCD, the driving chip of control driving circuit includes scanning driving chip and data driver, all are indispensable, and the cost of driving chip is lower than TFT-LCD Occupy a large proportion in the production cost, and the data drive chip is more expensive than the scan driver because of its complex structure, making the overall cost of existing TFT-LCD products higher; The commonly used technical method is to invert the video data signal input by the data line, that is, invert the signal voltage, for example, set the common voltage in the common electrode to a constant value of 6V, and set the video data signal input by the data line to 0V ~12V, the voltage value between the liquid crystal pixel electrode and the common electrode will change between -6V and +6V, so that the voltage between the liquid crystal pixel electrode and the common electrode will alternately change to positive voltage and negative voltage

In order to solve the problems caused by parasitic capacitance, the method adopted in the prior art is to use the dot inversion method to frequently invert the voltage value of the video data signal, so that slightly brighter and slightly darker liquid crystal display units, or sub-pixel electrodes, can Crossover appears, so that the display effect is averaged, but the defect of this technical solution is that the energy consumption required for display is increased due to frequent inversion of video data signals

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