指纹传感器和包括其的显示装置
By optimizing the structural design of the fingerprint sensor, including thin-film transistors, multilayer insulating layers, and sensing semiconductor layers, the problem of insufficient noise reduction in existing optical fingerprint sensors has been solved, improving sensing accuracy and privacy protection capabilities.
CN113887269BActive Publication Date: 2026-07-17SAMSUNG DISPLAY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAMSUNG DISPLAY CO LTD
- Filing Date
- 2021-06-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing fingerprint sensors are ineffective at protecting privacy information in portable electronic devices, and optical fingerprint sensors are inadequate in minimizing noise and light.
Method used
A fingerprint sensor was designed, comprising a thin-film transistor, multiple insulating layers, a sensing semiconductor layer, and a sensing electrode. By optimizing the opening structure and the layout of the semiconductor layer, the sensing accuracy and noise suppression capability of the photosensitive element were improved.
Benefits of technology
It improves the sensing accuracy and noise suppression capability of fingerprint sensors, enhances the recognition effect of fingerprint patterns, and protects the privacy information in portable electronic devices.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN113887269B_ABST
Abstract
本申请涉及一种指纹传感器以及包括其的显示装置。指纹传感器包括：薄膜晶体管，设置在衬底上；第一绝缘层，设置在薄膜晶体管上；第一感测电极，设置在第一绝缘层上并连接到薄膜晶体管；第二绝缘层，设置在第一感测电极上并包括暴露第一感测电极的开口；感测半导体层，设置在第二绝缘层的开口中，并位于第一感测电极上，并且包括N型半导体层、I型半导体层和P型半导体层；以及第二感测电极，设置在感测半导体层上。感测半导体层的上表面与第二绝缘层的上表面共面。
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