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公开(公告)号：US20220147175A1
公开(公告)日：2022-05-12
申请号：US17583199
申请日：2022-01-25
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Jing ZHANG , Feng LU
Abstract: A touch panel, a method for testing the touch panel and a display device are provided. In order to test the touch panel, all touch electrodes are connected in series to obtain a branch during the testing phase, a test signal is inputted to the branch, and a feedback signal outputted by the branch is analyzed for determination. All the touch electrodes are isolated from each other during a phase rather than the testing phase. Therefore, whether a touch electrode is abnormal is determined by controlling all the touch electrodes to be connected in series during the testing phase and isolated from each other during the phase rather than the testing phase, to improve efficiency for testing a touch electrode and simplifying the process of testing the touch electrode.
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公开(公告)号：US20230297182A1
公开(公告)日：2023-09-21
申请号：US18325405
申请日：2023-05-30
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Yang ZENG , Zhe LI , Jing ZHANG
CPC classification number: G06F3/0412 , G06V40/13
Abstract: A display panel and a display apparatus are provided. In an embodiment, the display panel has a display region including a fingerprint recognition region. In an embodiment, the fingerprint recognition region includes a plurality of light-transmitting apertures. In an embodiment, the display panel includes a plurality of sub-pixels, a plurality of touch electrodes, and a plurality of touch lines that are located in the display region. In an embodiment, one of the plurality of touch lines and one of the plurality of light-transmitting apertures are provided in different sub-pixel spacing regions of the plurality of sub-pixel spacing regions, respectively.
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公开(公告)号：US20230030378A1
公开(公告)日：2023-02-02
申请号：US17674613
申请日：2022-02-17
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Jing ZHANG , Feng LU
Abstract: A display panel and a display device are provided. The display panel includes a display area, a light transmission area, a first frame area, a crack detection line in the first frame area, and two first connection lines. The first frame area surrounds the light transmission area and the display area surrounding the first frame area. At least a portion of the crack detection line extends along a circumferential direction of the light transmission area. The crack detection line is connected to the two first connection lines. Each first connection line of the two first connection lines includes a first end connected to the crack detection line and a second end away from the first end. A distance between two first ends of the two first connection lines is larger than a distance between two second ends of the two first connection lines.
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公开(公告)号：US20220291771A1
公开(公告)日：2022-09-15
申请号：US17830211
申请日：2022-06-01
Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.
Inventor： Yang ZENG , Zhe LI , Jing ZHANG
Abstract: A display panel and a display apparatus are provided. The display panel has a display region including a fingerprint recognition region. The fingerprint recognition region includes a plurality of light-transmitting apertures. The display panel includes a plurality of sub-pixels, a plurality of touch electrodes, and a plurality of touch leads that are located in the display region. The plurality of touch leads is electrically connected to the plurality of touch electrodes, respectively. The display region includes sub-pixel spacing regions located between two adjacent sub-pixels, and at most one of the touch lead and the light-transmitting aperture is arranged in the sub-pixel spacing region.
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