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Pixel circuit, display panel and display device

A technology of pixel circuits and display panels, applied in the fields of pixel circuits, display panels and display devices, can solve the problems of increasing the thickness and weight of display panels, and achieve the effects of protecting eyes, increasing contrast, and improving user experience

Active Publication Date: 2020-11-17
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An existing solution adjusts the display brightness of the display panel by setting a light transmittance modulating film layer on the display panel, but part of the light will be sacrificed, and the thickness and weight of the display panel will be increased.

Method used

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  • Pixel circuit, display panel and display device
  • Pixel circuit, display panel and display device
  • Pixel circuit, display panel and display device

Examples

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Embodiment Construction

[0026] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0027] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term ...

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PUM

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Abstract

The invention provides a pixel circuit, a display panel and a display device. The pixel circuit is used for the display panel, the display panel comprises a light-emitting structure, and the pixel circuit comprises a driving transistor and a signal feedback unit. The first electrode of the driving transistor is connected with the light-emitting structure. The signal feedback unit comprises a second control electrode, a third electrode and a fourth electrode; the second control electrode is connected with the first electrode of the driving transistor, the third electrode is connected with the light-emitting structure and the fourth electrode is connected with the first control electrode of the driving transistor. When the light intensity of the external environment light is increased, the signal intensity of photon-generated carriers generated when the external environment light enters the light-emitting structure is increased, the fourth electrode outputs a negative feedback signal tothe first control electrode, and the current flowing to the light-emitting structure from the pixel circuit is reduced; when the light intensity of the external environment light is reduced, the signal intensity of photon-generated carriers generated when the external environment light enters the light-emitting structure is reduced, the fourth electrode outputs a positive feedback signal to the first control electrode, and the current flowing to the light-emitting structure from the pixel circuit is increased.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a pixel circuit, a display panel and a display device. Background technique [0002] When using a display device such as a mobile phone, under different ambient brightness, the brightness of the display device needs to be adjusted according to the ambient brightness to protect the user's eyes. [0003] An existing solution adjusts the display brightness of the display panel by setting a light transmittance modulating film layer on the display panel, but part of the light will be sacrificed, and the thickness and weight of the display panel will be increased. Contents of the invention [0004] According to a first aspect of the embodiments of the present application, a pixel circuit is provided. The pixel circuit is used in a display panel, the display panel includes a light-emitting structure, and the pixel circuit includes: [0005] a driving transistor, the drivi...

Claims

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Application Information

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IPC IPC(8): G09G3/3225G09G5/10
CPCG09G3/3225G09G5/10G09G2320/0626G09G2330/021
Inventor 黄张翔林忱欧忠星林亮珍李利杰冯玉春陈曦刘文瑞
Owner BOE TECH GRP CO LTD