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Pixel drive circuit and method, and display device

A technology of pixel driving circuit and driving electricity, which is applied to static indicators, instruments, etc., and can solve problems such as uneven display brightness

Active Publication Date: 2018-09-14
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 drive circuit and method, and display device
  • Pixel drive circuit and method, and display device
  • Pixel drive 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 may, however, be embodied in many 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 embodiments of the present disclosure. However, those 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 that other methods, components, materials, devices, steps, etc. may be employed. In other instances, well-known technical s...

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Abstract

The present invention relates to the technical field of display, especially to a pixel drive circuit and method, and a display device. The circuit comprises 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 pixel drive circuit and method, and the display device can eliminate the influence of a threshold voltage of the transistor and wire impedance voltage drop on a drive current and can ensure the consistency of the drive currents output by each drive circuit so as to ensure the uniformity of thedisplay brightness of each pixel, and the first pole of an electroluminescent cell is reset to eliminate the influence of the previous signals.

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 (Organic Light Emitting Diode, OLED), as a current-mode light-emitting device, has been increasingly used because of its characteristics of self-luminescence, fast response, wide viewing angle and can be fabricated on flexible substrates. In the field of high-performance display. OLED display devices can be classified into PMOLED (PassiveMatrix 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. Due to the advantages of AMOLED displays such as low manufacturing cost, high response speed, power saving, DC drive for portable devices, and wide operating temperature range, AMOLED has attracted in...

Claims

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Application Information

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Patent Type & Authority Applications(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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