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Display substrate and display device

A technology for display substrates and substrate substrates, applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of inability to compensate and adjust, affecting the signal accuracy of product photoelectric sensors, slow transient photoelectric response, etc., and achieve low power consumption. , The effect of improving compensation accuracy and high luminous efficiency

Pending Publication Date: 2021-11-16
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example: the transient photoelectric response of the mobile phone display screen is too slow in low grayscale screens, which affects the signal accuracy of the photoelectric sensor of the product, making it impossible to compensate and adjust according to the ambient brightness

Method used

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  • Display substrate and display device
  • Display substrate and display device
  • Display substrate and display device

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Embodiment Construction

[0048] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0049]It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the embodiments of the present disclosure do not indicate any sequence, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limi...

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Abstract

The invention provides a display substrate and a display device. The display substrate comprises a substrate base plate as well as a first electrode layer, a pixel defining layer, a first light-emitting function layer, a first light-emitting layer, a second light-emitting function layer and a second electrode layer which are stacked on the substrate base plate sequentially, wherein the pixel defining layer comprises a first opening area and a pixel defining unit; the display substrate further comprises a first blocking layer arranged between the first light-emitting functional layer and the second electrode layer, and the orthographic projection of the first blocking layer on the substrate base plate is at least partially overlapped with the orthographic projection of the pixel defining unit on the substrate base plate, and the first blocking layer is used for isolating the first light-emitting functional layer and the second electrode layer to block combination of electrons and holes in the first light-emitting layer. According to the display substrate and the display device, the transient photoelectric response time of a display screen under a low-gray-scale picture can be effectively shortened, and the compensation precision of a photoelectric sensing device on the display substrate is improved.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a display substrate and a display device. Background technique [0002] At present, with the increasingly fierce competition in the mobile phone industry, various mobile phone brands are constantly pursuing OLED displays with high luminous efficiency, low power consumption, long life, and high resolution to meet the market competitiveness of their high-end flagship phones, and at the same time meet the needs of shooting in different environments. Performance and consumer experience inevitably add more stringent specifications to the display. For example, the transient photoelectric response of the display screen of the mobile phone is too slow in the low grayscale screen, which affects the signal accuracy of the photoelectric sensor of the product, making it impossible to compensate and adjust according to the ambient brightness. Contents of the invention [000...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L27/32
CPCH10K59/60H10K59/122H10K50/86
Inventor 徐瑞乾向杰张灿袁德郭继成杨剑曹良商菲张胜德
Owner BOE TECH GRP CO LTD
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