Display panel
By designing a specific opening structure in the display panel and optimizing the light propagation path, the problem of high optical signal-to-noise ratio in optical fingerprint recognition is solved, and the recognition accuracy of the photosensitive unit is improved.
CN117456566BActive Publication Date: 2026-07-24WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD
- Filing Date
- 2023-01-31
- Publication Date
- 2026-07-24
AI Technical Summary
Technical Problem
Optical fingerprint recognition technology suffers from a high optical signal-to-noise ratio.
Method used
A specific opening structure is designed in the display panel, including the opening design of the first light-shielding layer, the second light-shielding layer and the touch metal layer, to optimize the light propagation path and reduce noise interference.
Benefits of technology
By optimizing the light propagation path, the optical signal-to-noise ratio is reduced, thereby improving the recognition accuracy of the light signals received by the photosensitive unit.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117456566B_ABST
Abstract
The application provides a display panel, comprising: a substrate; an array layer arranged on one side of the substrate, comprising: a plurality of drive circuit units and a photosensitive unit arranged between adjacent drive circuit units; a first light shielding layer arranged on a side of the array layer away from the substrate, comprising: a first opening and a second opening corresponding to the photosensitive unit; a light emitting device layer arranged on a side of the first light shielding layer away from the substrate, comprising: a light emitting unit corresponding to the first opening, the drive circuit unit being electrically connected with the light emitting unit; a second light shielding layer arranged on a side of the light emitting device layer away from the substrate, comprising: a third opening corresponding to the first opening and a fourth opening corresponding to the second opening, the area of the fourth opening being smaller than the area of the second opening; and a touch metal layer arranged on a side of the second light shielding layer away from the substrate, comprising: a fifth opening corresponding to the first opening and a sixth opening corresponding to the second opening, the area of the sixth opening being greater than or equal to the area of the fourth opening.
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