LCD device

Abstract

The present invention discloses a liquid crystal display device which comprises a pixel array, a plurality of scanning beams, a plurality of data wires, a scanning signal module and a data signal processing module; wherein, the pixel array comprises a plurality of pixels; the scanning signal module conveys scanning signals to the pixels by scanning beams; the data signal processing module is coupled with the data wires for compensating and transforming received data signals to produce simulative voltage signals and for compensating positive voltage to the simulative voltage signals which are conveyed to the pixels through the data wires. The positive voltage compensation is reduced as the distance between each pixel and the input ends of the scanning wires is increased, so the problem of the uneven picture is solved.

Description

technical field [0001] The present invention relates to a liquid crystal display device (Liquid Crystal Display, LCD), and more particularly to a liquid crystal display device capable of preventing image mura. Background technique [0002] The rapid progress of the multimedia society is mostly due to the rapid progress of semiconductor components or man-machine display devices. As far as display devices are concerned, flat panel display devices with superior characteristics such as high image quality, good space utilization efficiency, low power consumption, and no radiation have gradually become the mainstream of the market. Among various flat display devices, thin film transistor (Thin Film Transistor, TFT) liquid crystal display devices are currently the most mature flat display devices. [0003] FIG. 1 is a schematic circuit diagram of a conventional thin film transistor liquid crystal display device. Please refer to Figure 1, the pixels P on the same row of a general ...

AI Technical Summary

Problems solved by technology

However, (V gh -V gl ) will become smaller as the distance between the pixel and the input terminal of the scanning wiring is farther away, that is, the pixel P shown in Figure 1 10A ,P 10B ,P 10C (V gh -V gl ) will render (V gh -V gl ) 10A >(V gh -V gl ) 10B >(V gh -V gl ) 10C The phenomenon

Therefore, according to equation (1), when the C of each pixel LC 、C ST 、C GS are the same, the pixel P 10A ,P 10B ,P 10C The feedthrough voltage ΔV will present ΔV 10A >ΔV 10B >ΔV 10C However, there is still an uneven feed-through voltage ΔV, which makes the screen of the liquid crystal display device uneven and flickering.

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