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

A compensation method and a driving method technology are applied in the field of pixel circuit driving method and device, pixel circuit driving compensation, and display device, and can solve the problems of inconsistent driving current, uneven display brightness of display panel, etc.

Active Publication Date: 2019-06-21
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 drive compensation method, circuit drive method and device and display device
  • Circuit drive compensation method, circuit drive method and device and display device
  • Circuit drive compensation method, circuit drive 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 invention relates to the technical field of display, in particular to a pixel circuit driving compensation method, a pixel circuit driving method and device and a display device. The pixel circuitdriving compensation method can comprise the following steps: providing a preset signal to the control end of a driving transistor in the compensation stage of a pixel circuit so as to write the preset signal into the control end of the driving transistor and write the internal loss voltage of the driving transistor into the first end of the driving transistor; Wherein the compensation stage comprises 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 driving transistor; In the second external compensation stage, the preset signal is the sum of the data signal and the threshold voltage of the driving transistor. According to the invention, the influence of threshold voltage and internal loss on the current of the driving transistor is eliminated, and the uniformity of the display brightness of each pixel is ensured; Meanwhile, the internal compensation range is enlarged, and the problem that the data signal charging time is insufficient is solved.

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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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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