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Pixel driving circuit and display device

A pixel drive circuit and display panel technology, which is applied to static indicators, instruments, etc., can solve the problems of unsatisfactory display effect of the display panel and the inability to realize high-bit grayscale display, etc., so as to improve display quality and display effect, The effect of increasing the number of gray scales and simplifying the panel structure

Inactive Publication Date: 2021-04-30
SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a pixel driving circuit and a display device to solve the problem that the existing display device cannot realize grayscale display with a higher bit number when displaying a picture, and the display effect of the display panel is not ideal, etc.

Method used

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  • Pixel driving circuit and display device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0034] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the pr...

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Abstract

The invention provides a pixel driving circuit and a display device, the pixel driving circuit comprises a scanning signal line, a data signal line, a light emitting diode and a pixel driving circuit unit, and the pixel driving circuit unit comprises at least two cascade units. The pixel driving circuit unit is used for changing the number of the cascade units communicated with the data signal lines and the light emitting diodes so as to adjust the brightness of the light emitting diodes, thereby effectively improving the gray scale and the display quality of a display image.

Description

technical field [0001] The present invention relates to the field of display panel display technologies, in particular to a pixel driving circuit and a display device. Background technique [0002] With the continuous improvement of technology, the display technology of liquid crystal display devices has also been developed, and the display devices have been widely used in various electronic devices. [0003] A liquid crystal display device (liquid crystal display, LCD) has many advantages such as light and thin body, power saving, and no radiation, and is widely used. The functions and uses of liquid crystal display devices are also more diversified. For traditional liquid crystal display devices, cold cathode fluorescent lamps are often used as the backlight source, but the backlight source of cold cathode fluorescent lamps has poor color reproduction ability and low light emission efficiency. The gray scale is low and the picture display effect is not ideal. Therefore, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G3/36
CPCG09G3/3413G09G3/36G09G3/32G09G2300/0842G09G2300/0465G09G2300/0828G09G2300/0443G09G3/3677G09G3/3688G09G2320/0626
Inventor 李艳
Owner SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD
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