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A pixel driving circuit and display device

A pixel driving circuit and driving module technology, applied in static indicators, instruments, etc., can solve the problems of uneven display and low luminous efficiency, and achieve the effect of ensuring continuous normal operation, stable and effective signals, and avoiding the decline of luminous efficiency.

Active Publication Date: 2021-04-23
CHENGDU VISTAR OPTEOLECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a pixel driving circuit and a display device, so that the light-emitting module can be compensated, and the problems of uneven display and low luminous efficiency can be avoided

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  • A pixel driving circuit and display device
  • A pixel driving circuit and display device
  • A pixel driving circuit and display device

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Embodiment Construction

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, various implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solutions claimed in this application can also be realized.

[0023] The serial numbers assigned to components in this document, such as "first", "second", etc., are only used to distinguish the described objects, and do not have any sequence or technical meaning. The "connection" and "connection" mentioned in this application all include direct and indirect connectio...

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Abstract

Embodiments of the present invention relate to the field of display, and disclose a pixel driving circuit and a display device. In some embodiments of the present application, the pixel driving circuit includes: a driving module, a compensation module, and a light-emitting module; wherein, the output end of the driving module is connected to the input end of the compensation module and the input end of the light-emitting module, respectively, and the output end of the compensation module is connected to the input end of the light-emitting module. The input end of the light emitting module is connected, and the compensation module performs charge compensation on the light emitting module based on the output signal of the driving module. In this implementation, the compensation module performs charge compensation on the light-emitting module according to the output signal of the driving module, so as to avoid the problems of uneven display and decreased light-emitting efficiency.

Description

technical field [0001] Embodiments of the present invention relate to the field of display, and in particular to a pixel driving circuit and a display device. Background technique [0002] Display devices based on OLED / LED are widely used in various fields, such as mobile phones, televisions, and the like. An OLED / LED based display device consists of a plurality of pixel units, each pixel unit includes a driving circuit, and OLEDs or LEDs. In the drive circuit, the on and off of the LED is often controlled by controlling the transistor. [0003] However, the inventors found that there are at least the following problems in the prior art: threshold voltage drift and leakage current increase may occur due to long-term operation of transistors in different environments, and therefore, there are problems of uneven display and reduced luminous efficiency. [0004] It should be noted that the information disclosed in the above background section is only for enhancing the underst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208G09G3/32
CPCG09G3/32G09G3/3208
Inventor 黄飞
Owner CHENGDU VISTAR OPTEOLECTRONICS CO LTD