Invention Grant
- Patent Title: Display device with fingerprint area
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Application No.: US16387545Application Date: 2019-04-18
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Publication No.: US10922516B2Publication Date: 2021-02-16
- Inventor: Jeon Kyoo Kim , Jun Yong Song , Jae Keun Lim
- Applicant: Samsung Display Co. Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co. Ltd.
- Current Assignee: Samsung Display Co. Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2018-0090506 20180802
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G09G3/3233 ; G06F3/044 ; G06F21/32 ; G06F3/041

Abstract:
A display device has a display area with a first area in which a fingerprint is recognized and a second area in which a fingerprint is not recognized, and a non-display area. A fingerprint sensing unit is disposed to overlap with the first area. A first pixel set is disposed to overlap with the first area, and a second pixel set is disposed to overlap with the second area, each set including a plurality of pixels. A first voltage signal is provided to the first pixel set as a variable frequency signal, and includes a first period during which the first voltage signal is a first frequency signal, a second period during which the first voltage signal is a second frequency signal having a lower frequency than the first frequency signal, and a third period during which the first voltage signal is the first frequency signal.
Public/Granted literature
- US20200042759A1 DISPLAY DEVICE Public/Granted day:2020-02-06
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