Drive circuit and drive method for display panel

Abstract

The invention provides a drive circuit which is applicable to a display panel. The drive circuit consists of a driving unit and a plurality of multiplexors. The driving unit is used for generating a plurality of drive signals so as to drive a plurality of pixels in the display panel. The multiple multiplexors are coupled to the driving unit and the multiple pixels. Each of the multiple multiplexors is used for transmitting a plurality of signals to a plurality of sub-pixels of a corresponding pixel in sequence, wherein, the two adjacent pixels use different sub-pixel driving sequences to respectively drive the sub-pixels thereof.

Description

technical field [0001] The invention relates to a driving circuit of a display panel, in particular to a driving circuit made on a low-temperature polysilicon liquid crystal display panel and including a multiplexer circuit and a driving method thereof. Background technique [0002] Please refer to figure 1 , figure 1 It is a schematic diagram of a system structure 100 of an existing low-temperature polysilicon liquid crystal display panel. The low temperature polysilicon liquid crystal display panel system structure 100 includes a display panel 110 , a data driver circuit (Data driver) 120 , a timing control circuit (Timing controller) 130 and a storage unit 140 . In addition, the display panel 110 further includes a scan driver circuit (Scandriver) 112 and a multiplexer circuit 114 , wherein the scan driver circuit 112 and the multiplexer circuit 114 are fabricated on the display panel 110 . [0003] Such as figure 1 As shown, an external input signal is converted into...

AI Technical Summary

Problems solved by technology

In order to reduce the number of output ports of the data driving circuit, the three sub-pixels of red, green and blue in a pixel need to be sequentially switched by multiplexers 114a, 114b, 114c in the multiplexer circuit 114 However, due to the parasitic capacitance and parasitic resistance effects of the multiplexers 114a, 114b, and 114c, the driving of the display panel 110 will result in red, green, and blue gamma curves (Gammacurve, also known as grayscale curves). separation phenomenon

When the display panel 110 performs gamma correction, if the red, green, and blue gamma curves diverge too much, it will make it difficult to adjust the gray scale, so the visual effect of the display will have color deviation.

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