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Pixel compensation circuit, compensation method, pixel circuit, display panel

A compensation circuit and display panel technology, applied in the field of pixel circuit, display panel, pixel compensation circuit and compensation method, can solve the problems of high power of source drive circuit and large dynamic range of threshold voltage, etc.

Active Publication Date: 2020-06-09
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the dynamic range of the threshold voltage is large, resulting in a large power loss in the source drive circuit

Method used

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  • Pixel compensation circuit, compensation method, pixel circuit, display panel
  • Pixel compensation circuit, compensation method, pixel circuit, display panel
  • Pixel compensation circuit, compensation method, pixel circuit, display panel

Examples

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Embodiment Construction

[0038] 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 examples 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 same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0039] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the description in the accompanying drawings directions for the example described above. It will be appreciated that if the illustrated device is turned over so that i...

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Abstract

The present disclosure relates to the technical field of displays, and provides a pixel compensation circuit, which includes a detection circuit, a first compensation circuit, and a second compensation circuit. The detection circuit is configured to detect a threshold voltage of a driving transistor; the first compensation circuit being configured to write a first reference voltage to a source electrode of the driving transistor; the second compensation circuit being configured to write a second compensation voltage to a control terminal of the driving transistor at the same time of writing the first reference voltage to the source electrode of the driving transistor. The second compensation voltage is equal to a difference between the threshold of the driving transistor and a first compensation voltage.

Description

technical field [0001] The present disclosure relates to the technical field of displays, and in particular to a pixel compensation circuit and compensation method, a pixel circuit, and a display panel. Background technique [0002] In the LED pixel driving circuit, the threshold voltage of the driving transistor will affect the brightness of the LED. When the threshold voltage of the driving transistor on the display panel has a large difference, an hourglass phenomenon will appear in the picture displayed on the display panel. [0003] In the related art, the threshold compensation of the driving transistor in the pixel driving circuit can be realized through external compensation, and the external compensation usually compensates the threshold voltage of the driving transistor to the control terminal of the driving transistor through the source driving circuit. [0004] However, the dynamic range of the threshold voltage is relatively large, so that the power consumed by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32
CPCG09G3/32G09G3/3233G09G2300/0819G09G2300/0842G09G2300/0852G09G2320/0233G09G2320/043G09G3/3258G09G3/3291G09G2300/043G09G2300/0828
Inventor 殷新社
Owner BOE TECH GRP CO LTD