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Pixel driving circuit and method, and display device

A technology of a pixel driving circuit and a driving circuit, which is applied in the field of a pixel driving circuit, a pixel driving method, and a display device, and can solve problems such as uneven display brightness, and achieve the effects of eliminating voltage drop of wire impedance, simple timing diagram, and consistent driving current

Active Publication Date: 2021-05-07
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present disclosure is to provide a pixel driving circuit, a pixel driving method, and a display device, and then at least to a certain extent overcome the problem of uneven display brightness caused by the threshold voltage of the driving transistor and the impedance of the wire, etc.

Method used

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  • Pixel driving circuit and method, and display device
  • Pixel driving circuit and method, and display device
  • Pixel driving circuit and method, and display device

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Embodiment Construction

[0051] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present disclosure. However, one skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, devices, steps, etc. may be employed. In other instances, well-known solutions h...

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Abstract

The present disclosure relates to the field of display technology, and in particular, to a pixel driving circuit, a pixel driving method, and a display device. The circuit includes: a first switch unit, a second switch unit, a drive transistor, a compensation unit, an isolation unit, a reset unit and an energy storage unit. The disclosure can eliminate the influence of the threshold voltage of the driving transistor and the voltage drop of the wire impedance on the driving current, ensure that the driving current output by each pixel driving circuit is consistent, and then ensure the uniformity of the display brightness of each pixel. In addition, through the electroluminescent element The first pole is reset to eliminate the influence of the previous frame signal.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a pixel driving circuit, a pixel driving method, and a display device. Background technique [0002] Organic Light Emitting Diode (OLED), as a current-type light-emitting device, has been increasingly used for its self-luminescence, fast response, wide viewing angle, and the ability to be fabricated on flexible substrates. in the field of high-performance displays. OLED display devices can be divided into PMOLED (Passive Matrix Driving OLED, passive matrix driving organic light emitting diode) and AMOLED (Active Matrix Driving OLED, active matrix driving organic light emitting diode) according to different driving methods. AMOLED displays have received increasing attention from display technology developers due to their low manufacturing cost, high response speed, power saving, DC drive for portable devices, and wide operating temperature range. [0003] In the e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225G09G3/3233G09G2310/067G09G2300/0842G09G2300/0819G09G2300/0861G09G2320/0233G09G3/3266G09G3/3275G09G2310/0278
Inventor 孙佳陆旭高贤永曾凡建
Owner BOE TECH GRP CO LTD
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