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Multi-gray-scale pixel driving circuit and display panel

A pixel driving circuit and grayscale technology, which is applied in static indicators, instruments, etc., can solve the problems of inability to meet high grayscale display, few grayscales, etc., and achieve the effect of multiple grayscales and increasing grayscales.

Inactive Publication Date: 2020-12-01
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the limited number of light-emitting devices generally cannot be adjusted by the control module, so the number of gray scales that can be realized by the existing pixel unit is small, which is only suitable for low gray scale display and cannot satisfy high gray scale display.

Method used

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  • Multi-gray-scale pixel driving circuit and display panel
  • Multi-gray-scale pixel driving circuit and display panel
  • Multi-gray-scale pixel driving circuit and display panel

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0022] In all the embodiments of the present application, two electrodes other than the gate of the transistor are distinguished, one of which is called the source, and the other is called the drain. Since the source and drain of a transistor are symmetrical, its source and drain are interchangeable. According to the form in the accompanying drawings, it is stipulated that the middle terminal of the transistor is the gate, the signal input terminal is the source terminal, and th...

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Abstract

The invention provides a multi-gray-scale pixel driving circuit and a display panel. According to the multi-gray-scale pixel driving circuit, a driving module, a light emitting module and a light-emitting control module are connected in series between a first potential and a second potential; the driving module and the light-emitting control module are used for controlling the light-emitting situation of the light-emitting module according to the preset time sequence, so that the light-emitting module can achieve multi-gray-scale display of low gray scale or high gray scale, and the gray scalenumber capable of being displayed is greatly increased. When the multi-gray-scale pixel driving circuit is applied to the display panel, the display of more gray scales can be realized.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a multi-grayscale pixel driving circuit and a display panel. Background technique [0002] At present, each pixel unit of a display panel only includes a limited number of light-emitting devices, for example, each pixel unit includes three sub-pixel circuits of red, green, and blue, and each color sub-pixel circuit uses only one LED as a light-emitting device. show. Moreover, the limited number of light-emitting devices generally cannot be adjusted by the control module, so the number of gray scales that can be realized by the existing pixel unit is small, which is only suitable for low gray scale display and cannot satisfy high gray scale display. Contents of the invention [0003] In order to solve the above problems, the present application provides a multi-gray-scale pixel drive circuit, which includes: a drive module, a light-emitting module, and a light-emitti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32
Inventor 李艳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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