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Pixel circuit, light-emitting device aging detection compensation method and display substrate

A technology of light-emitting devices and pixel circuits, applied in instruments, static indicators, etc., can solve the problem of uneven screen display, and achieve the effect of avoiding insufficient display brightness, ensuring reliability and uniformity

Pending Publication Date: 2020-06-19
BOE TECH GRP CO LTD +1
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Embodiments of the present disclosure provide a pixel circuit, a method for detecting and compensating aging of a light-emitting device, and a display substrate, which can solve the problem of uneven screen display caused by aging of OLED devices

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  • Pixel circuit, light-emitting device aging detection compensation method and display substrate
  • Pixel circuit, light-emitting device aging detection compensation method and display substrate
  • Pixel circuit, light-emitting device aging detection compensation method and display substrate

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0034] With the prolongation of service time, OLED devices are prone to aging, that is, their luminous brightness will decrease. However, since the luminance of the OLED devices contained in each pixel of the OLED display screen decreases to a different degree, it is easy to cause uneven brightness of the screen display screen and affect the display effect.

[0035] Based on this, see figure 1 , the embodiment of the present disclosure pro...

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Abstract

The embodiment of the invention provides a pixel circuit, a light-emitting device aging detection compensation method and a display substrate, and can solve the problem of non-uniform screen display pictures caused by aging of an OLED device. The pixel circuit includes a pixel driving circuit, a detection circuit, a reset circuit, and a light emitting device. The pixel driving circuit is connectedwith the grid line, the data line, the light-emitting signal line and the light-emitting device and is configured to drive the light-emitting device to emit light. The detection circuit is connectedwith the light-emitting device, the detection signal line and the reading signal line, and is configured to read the anode potential of the light-emitting device in a light-emitting state and transmitthe anode potential to the reading signal line. The reset circuit is connected with the reset signal line and the read signal line and resets the read signal line. The pixel circuit, the detection and compensation method for aging of the light-emitting device and the display substrate provided by the embodiment of the invention are used for carrying out aging information detection and aging compensation on the light-emitting device.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular to a pixel circuit, a method for detecting and compensating aging of a light-emitting device, and a display substrate. Background technique [0002] Organic Light-Emitting Diode (OLED) display has the characteristics of self-illumination, wide viewing angle, high contrast, fast response, low power consumption, ultra-thin, etc., and has been widely used in the industry. [0003] Currently, each pixel in an OLED display includes an OLED device and a pixel driving circuit for driving the OLED device to emit light. OLED devices are prone to aging after prolonged use. With the prolongation of use time, the material properties of the OLED device gradually deteriorate, resulting in the continuous attenuation of the brightness of the OLED device, that is, aging. The luminance of the OLED device after aging will decrease compared with the luminance of the OLED device in the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00G09G3/3225
CPCG09G3/006G09G3/3225
Inventor 王铸于子阳胡谦李嵬卿
Owner BOE TECH GRP CO LTD
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