Invention Grant
- Patent Title: Display panel and display device
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Application No.: US16790314Application Date: 2020-02-13
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Publication No.: US11270093B2Publication Date: 2022-03-08
- Inventor: Meng Lai , Lifeng Lu , Zhilong Zhuang , Jiancai Huang , Yumin Xu , Xianyan Yang
- Applicant: Xiamen Tianma Micro-Electronics Co., Ltd
- Applicant Address: CN Xiamen
- Assignee: Xiamen Tianma Micro-Electronics Co., Ltd
- Current Assignee: Xiamen Tianma Micro-Electronics Co., Ltd
- Current Assignee Address: CN Xiamen
- Agency: Christensen O'Connor Johnson Kindness PLLC
- Priority: CN201911207079.4 20191129
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06K9/03 ; H01L27/146

Abstract:
The present disclosure provides a display panel and a display device. The display panel includes a plurality of fingerprint recognition circuits. At least one of the plurality of fingerprint recognition circuits includes a light sense signal obtaining unit and a subtracted. The light sense signal obtaining unit is configured to obtain a first light sense voltage value and a second light sense voltage value, the first light sense voltage value is related to a first power voltage value, the second light sense voltage value is related to a second power voltage value, and the first power voltage value is greater than the second power voltage value. The subtracted is configured to subtract the second light sense voltage value from the first light sense voltage value to obtain a light sense data value.
Public/Granted literature
- US20210165989A1 DISPLAY PANEL AND DISPLAY DEVICE Public/Granted day:2021-06-03
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