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Display panel, brightness compensation method thereof, and display device

A technology of display panel and display area, applied in static indicators, instruments, etc., can solve the problems of low display brightness, inability to improve display performance, and aging of light-emitting elements of OLED display panels.

Active Publication Date: 2021-03-30
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the passage of time, the light-emitting elements in the OLED display panel will age, causing the actual display brightness to be lower than the target display brightness, which in turn will cause color shift in the picture displayed on the display panel.
[0003] However, using the compensation methods in the prior art, such as real-time monitoring compensation and estimated compensation, the accuracy of the compensation is not high, and the display performance cannot be better improved

Method used

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  • Display panel, brightness compensation method thereof, and display device
  • Display panel, brightness compensation method thereof, and display device
  • Display panel, brightness compensation method thereof, and display device

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Embodiment Construction

[0036] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0037] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0039] It should be understood that the term "an...

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Abstract

The embodiment of the invention provides a display panel, a brightness compensation method thereof and a display device, relates to the technical field of display, and aims to improve brightness attenuation caused by aging. The display panel comprises a display area and a non-display area, and the display area being provided with a first light-emitting element; a light sensation detection unit, comprising a second light-emitting element in a non-display area and a detection module; the second light-emitting element and the first light-emitting element having the same light-emitting state; a detection module, comprising an initialization submodule which is connected with a first control signal end, a first reference signal end, a high level signal end, a first node and a second node; a photosensitive element, connected with the first fixed signal end and the first node; a feedback sub-module, connected with a second control signal end, a second reference signal end, a first fixed signalend, a second fixed signal end, a first node, a second node and a third node; an output sub-module, connected with a second control signal end, a third node and an output signal line; and a compensation unit, connected with the output sub-module and the first light-emitting element.

Description

【Technical field】 [0001] The invention relates to the field of display technology, in particular to a display panel, a brightness compensation method thereof, and a display device. 【Background technique】 [0002] Compared with liquid crystal display panels, organic light-emitting diode (Organic Light-Emitting Diode, OLED for short) display panels have more advantages in terms of brightness, chromaticity, and power consumption, and have been widely used. However, as time goes by, the light-emitting elements in the OLED display panel will age, resulting in the actual display brightness being lower than the target display brightness, which will cause color shift in the picture displayed on the display panel. [0003] However, with the compensation methods in the prior art, such as real-time monitoring compensation and estimated compensation, the accuracy of the compensation is not high, and the display performance cannot be better improved. 【Content of invention】 [0004] In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208
Inventor 冷传利龚华
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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