-
公开(公告)号：US10521044B2
公开(公告)日：2019-12-31
申请号：US15895135
申请日：2018-02-13
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Daisuke Ito
Abstract: The display device includes a detection circuit, a touch detection region including a plurality of detection electrodes, a peripheral region around the touch detection region, a plurality of wirings passing the peripheral region from the detection electrodes so as to be connected to the detection circuit, and at least one auxiliary wiring extending parallel to the wirings so as to be connected to the detection circuit.
-
公开(公告)号：US11995260B2
公开(公告)日：2024-05-28
申请号：US18119561
申请日：2023-03-09
Applicant: Japan Display Inc.
Inventor： Daichi Abe , Akihiko Fujisawa
IPC: G06F3/041 , G02F1/1362
CPC classification number: G06F3/0412 , G02F1/136218 , G06F2203/04101
Abstract: According to one embodiment, a display device includes a display area for displaying an image, a plurality of detection electrodes and a movable electrode. The plurality of detection electrodes are disposed in a peripheral area surrounding the display area. The movable electrode is disposed in such a way as to surround the detection electrodes and is movable around the detection electrodes. The movable electrode has a length corresponding to a length of each of the detection electrodes in a peripheral direction.
-
公开(公告)号：US11899880B2
公开(公告)日：2024-02-13
申请号：US17989851
申请日：2022-11-18
Applicant: Japan Display Inc.
Inventor： Kaoru Ito , Akihiko Fujisawa
CPC classification number: G06F3/041662 , G06F3/044 , G06F3/0412
Abstract: A liquid crystal display device includes a liquid crystal layer provided between a first substrate and a second substrate, a detection electrode configured to detect an external proximity object, a plurality of pixels overlapping the detection electrode in plan view, and a detection circuit configured to detect a detected capacitance value generated in the detection electrode. A liquid crystal capacitance value generated between each of the pixels and the detection electrode includes a first capacitance value at a first gradation and a second capacitance value at a second gradation smaller than the first gradation, and the detection circuit corrects the detected capacitance value based on a ratio between number of pixels with the first gradation and number of pixels with the second gradation out of the pixels.
-
公开(公告)号：US11899883B2
公开(公告)日：2024-02-13
申请号：US17947559
申请日：2022-09-19
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Kaoru Ito
IPC: G06F3/041 , G06F3/044 , G02F1/1333 , G02F1/1343 , G04G17/04 , G04G21/08
CPC classification number: G06F3/0418 , G02F1/13338 , G02F1/134309 , G04G17/04 , G04G21/08 , G06F3/044 , G06F3/0412 , G06F3/04166 , G06F2203/04107
Abstract: According to one embodiment, a display device includes a display area, a plurality of sensor electrodes and a shield electrode. The display panel includes a first substrate, a second substrate opposed to the first substrate, a liquid crystal layer sealed between the first substrate and the second substrate, a pixel electrode, and a counter-electrode. The plurality of sensor electrodes are arranged to surround the display area. The shield electrode is arranged between the plurality of sensor electrodes and the pixel electrode or the counter-electrode located closest to a boundary between the display area and a non-display area surrounding the display area, in planar view. A predetermined reference voltage is applied to the shield electrode.
-
公开(公告)号：US11899877B2
公开(公告)日：2024-02-13
申请号：US17714250
申请日：2022-04-06
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa
CPC classification number: G06F3/04166 , G04G21/08 , G06F3/044 , G06F3/0412 , G09G3/3674
Abstract: According to one embodiment, a display device includes a display part, a plurality of sensor electrodes and a controller. The display part is configured to display an image. The plurality of sensor electrodes are arranged to surround the display part. The controller is electrically connected to the sensor electrodes, and is configured to detect an object close to or contacting the sensor electrodes. The controller drives at least one of the sensor electrodes as a detection electrode and drives at least one of the sensor electrodes as a drive electrode.
-
Patent Agency Ranking
公开(公告)号：US11804066B2
公开(公告)日：2023-10-31
申请号：US17969025
申请日：2022-10-19
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Takaaki Kono
CPC classification number: G06V40/1318
Abstract: A detection device includes a plurality of detection elements arranged in a matrix having a row-column configuration in a detection area of a substrate, and an initialization circuit configured to apply an initialization potential to each of the detection elements. The initialization circuit has a first mode to apply a same initialization potential to all the detection elements and a second mode to apply different initialization potentials to the detection elements adjacent to each other.
-
公开(公告)号：US11687207B2
公开(公告)日：2023-06-27
申请号：US17672234
申请日：2022-02-15
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Teppei Yamada , Kaoru Ito
IPC: G06F3/044 , G06F3/041 , G06V40/13 , G06V10/147
CPC classification number: G06F3/0446 , G06F3/0445 , G06F3/0448 , G06F3/04166 , G06V10/147 , G06V40/1306
Abstract: A display device is provided and includes display panel; sensor substrate formed on display panel; and M drive electrodes and detection electrodes extended in direction so as to intersect with M drive electrodes, wherein among M drive electrodes, any of lengths of N first drive electrodes, which are continuously adjacent to one another, is shorter than any of lengths of other N second drive electrodes which are continuously adjacent to one another, and number of detection electrodes which intersect with N first drive electrodes is larger than number of detection electrodes which intersect with N second drive electrodes.
-
公开(公告)号：US12236707B2
公开(公告)日：2025-02-25
申请号：US18296666
申请日：2023-04-06
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Takaaki Kono
Abstract: A detection device includes a sensor circuit provided with a first photodiode in a semiconductor layer, and a signal detector configured to acquire a detection value corresponding to a signal output from the sensor circuit. The signal detector includes a first detection circuit coupled to one end of the first photodiode, a first switch circuit configured to apply a power supply potential to another end of the first photodiode, and a second switch circuit configured to short both ends of the first photodiode.
-
公开(公告)号：US11740753B2
公开(公告)日：2023-08-29
申请号：US17579708
申请日：2022-01-20
Applicant: Japan Display Inc.
Inventor： Kaoru Ito , Akihiko Fujisawa
IPC: G06F3/044 , G02F1/1339 , G02F1/1333 , G02F1/1362
CPC classification number: G06F3/0448 , G02F1/1339 , G02F1/13338 , G02F1/136286 , G06F2203/04107
Abstract: According to one embodiment, a display device includes a first substrate, a second substrate, a sealant, a first electrode, an insulating film and a second electrode. The sealant bonds the first substrate and the second substrate and is provided in a peripheral area surrounding a display area. The first electrode is provided on the first substrate in the peripheral area. The insulating film covers the first electrode. The second electrode is provided on the second substrate in the peripheral area. The sealant contains a conductive member. At least one of the first electrode and the second electrode includes a plurality of fine line portions in an area where the first electrode, the insulating film, the sealant, and the second electrode are overlapped in planar view.
-
公开(公告)号：US11567615B2
公开(公告)日：2023-01-31
申请号：US17577492
申请日：2022-01-18
Applicant: Japan Display Inc.
Inventor： Akihiko Fujisawa , Kaoru Ito , Daichi Abe
Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, detection electrodes provided to surround a display area where an image is displayed, and a common electrode provided over an entire surface of the display area. The common electrode includes a first lead wiring line that extends to a peripheral area around the display area, along a boundary part between a first detection electrode, which is one of the detection electrodes, and a second detection electrode adjacent to the first detection electrode. A capacitance formed between the first lead wiring line and the first detection electrode is substantially equal to a capacitance formed between the first lead wiring line and the second detection electrode.
-
-
-
-
-
-
-
-
-
Search Results
17
records
(took 0.013 seconds)
