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Circuit driving compensation method, circuit driving method and device, and display device

A compensation method and technology of a driving method are applied in the field of pixel circuit driving method and device, pixel circuit driving compensation, and display device, which can solve the problems of uneven display brightness and inconsistent driving current of a display panel, so as to eliminate the influence of current and ensure uniformity. sexual effect

Active Publication Date: 2021-05-18
BOE TECH GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the pixel circuit, factors such as the mobility of the driving transistor, the threshold voltage, and the resistance on the wire may cause the driving current to drive each OLED to be inconsistent, resulting in uneven display brightness of the display panel.

Method used

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  • Circuit driving compensation method, circuit driving method and device, and display device
  • Circuit driving compensation method, circuit driving method and device, and display device
  • Circuit driving compensation method, circuit driving method and device, and display device

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Embodiment Construction

[0073] 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 disclosure relates to the field of display technology, and in particular, to a pixel circuit driving compensation method, a pixel circuit driving method and device, and a display device. The pixel circuit drive compensation method may include: in the compensation stage of the pixel circuit, providing a preset signal to the control terminal of the drive transistor, so as to write the preset signal into the control terminal of the drive transistor, and write the internal loss voltage of the drive transistor to into the first terminal of the drive transistor; wherein: the compensation stage includes a first external compensation stage and a second external compensation stage; in the first external compensation stage, the preset signal is the sum of the reference signal and the threshold voltage of the drive transistor; in the second In the external compensation stage, the preset signal is the sum of the data signal and the threshold voltage of the driving transistor. The disclosure eliminates the influence of the threshold voltage and the internal loss on the current of the driving transistor, ensures the uniformity of the display brightness of each pixel; meanwhile, increases the internal compensation range, and avoids the problem of insufficient charging time of the data signal.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a pixel circuit driving compensation method, a pixel circuit driving method and device, and a display device. Background technique [0002] Organic Light Emitting Diode (OLED), as a current-mode light-emitting device, is increasingly being used because of its characteristics such as self-luminescence, fast response, wide viewing angle and the ability to 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3233G09G2300/0819G09G2310/06G09G2310/08G09G2320/0295G09G2360/147G09G2320/0233G09G2360/145
Inventor 林奕呈王雨王玲徐攀盖翠丽张保侠闫光杨栋芳
Owner BOE TECH GRP CO LTD
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