Pixel circuit and display device

Abstract

The invention provides a pixel circuit and a display device. The pixel circuit comprises a plurality of pixel driving modules. Each pixel driving module comprises a main pixel control group, a primary pixel control group and a shared switch. The main pixel control group comprises a main switch and a main pixel electrode, and the main switch is configured to be controlled by a scanning signal of a scanning line at the same level so as to transmit a data signal of a data line to the main pixel electrode; the sub-pixel control group comprises a sub-switch and a sub-pixel electrode, and the sub-switch is configured to be controlled by a scanning signal of a scanning line at the same level so as to transmit a data signal of the data line to the sub-pixel electrode; and the shared switch is configured to be controlled by a shared scanning signal of a shared scanning line so as to lower the potential of the sub-pixel electrode. Therefore, the adjustable range of the low color cast curve in the prior art is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a pixel circuit and a display device. Background technique [0002] In liquid crystal display devices, in order to improve the large viewing angle shift phenomenon of vertically aligned liquid crystal displays, a low color shift (LCS) design can be performed on the pixel unit, for example, each sub-pixel unit is divided into a main pixel electrode and a sub-pixel electrode. During the display process, the main pixel electrode and the sub-pixel electrode are first charged with the same potential, and then the potential of the sub-pixel electrode is pulled down, so that the potentials of the main pixel electrode and the sub-pixel electrode are different. [0003] For example, the switch of the main pixel electrode, the switch of the sub-pixel electrode and the shared signal switch are controlled by the same signal line, the LCS curve will show a downward trend, the viewing angle ...

AI Technical Summary

Problems solved by technology

[0003] For example, the switch of the main pixel electrode, the switch of the sub-pixel electrode and the shared signal switch are controlled by the same signal line, the LCS curve will show a downward trend, the viewing angle is not good when the LCS characteristic parameter is low, and the penetration is high when the LCS characteristic parameter is high bad

In order to improve this situation, although other technologies have been proposed, such as changing the control method of the sharing signal switch, the adjustable range of the LCS characteristic curve is limited, and it cannot meet the requirements of viewing angle and penetration rate at the same time, and still needs to be improved.

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