公开(公告)号：US20240071327A1

公开(公告)日：2024-02-29

申请号：US18456733

申请日：2023-08-28

Applicant: Japan Display Inc.

Inventor： Hiroyuki ABE ,  Akihiko SAITOH ,  Teppei YAMADA

IPC: G09G3/36 ,  G06V40/13

CPC classification number: G09G3/3607 ,  G06V40/1318 ,  G09G2354/00

Abstract: According to one embodiment, a liquid crystal display device with an optical sensor includes a display panel and a driver IC. The display panel includes first to third signal lines, an optical sensor including a photoelectric conversion element, and a sensor signal line that is connected to the optical sensor and transmits a detection signal to the driver IC. One first wiring line drawn from one terminal of the driver IC is connected to four switching elements. Three of the four switching elements are electrically connected to one of the first to third signal lines, respectively. One of the four switching elements, different from the three switching elements, is electrically connected to the sensor signal line.

公开(公告)号：US20170168640A1

公开(公告)日：2017-06-15

申请号：US15373201

申请日：2016-12-08

Applicant: Japan Display Inc.

Inventor： Teppei YAMADA ,  Masaki MURASE ,  Yoshiyuki IKEHATA ,  Daisuke ITO ,  Naoki TAKADA

IPC: G06F3/041 ,  G02F1/133 ,  G02F1/1362 ,  G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04107 ,  G09G3/20

Abstract: A liquid crystal display device includes a panel unit and a driving unit driving the panel unit. The driving unit includes as operation modes a first mode in which a detection operation of a first external object is performed in units of a divided region obtained by dividing an entire surface of a touch region of the panel unit and a second mode in which a detection operation of a second external object is performed on the entire surface of the touch region of the panel unit. The first mode is a mode detecting, in units of the divided region of the panel unit, a contact position of the first external object with each divided region, and the second mode is a mode detecting, on the entire surface of the panel unit, whether or not the second external object approaches the entire surface.

公开(公告)号：US20240248354A1

公开(公告)日：2024-07-25

申请号：US18419768

申请日：2024-01-23

Applicant: Japan Display Inc.

Inventor： Masateru MORIMOTO ,  Teppei YAMADA

IPC: G02F1/1362

CPC classification number: G02F1/136209 ,  G02F1/136222 ,  G02F1/136227

Abstract: In a liquid crystal display device in which a first light shielding film extending in a first direction and an image signal line are formed on a TFT substrate, the image signal line includes: in a region that does not overlap the first light shielding film, a first portion extending at a first angle with respect to a second direction perpendicular to the first direction; and, in a region that overlaps the first light shielding film, a second portion extending at a second angle with respect to the second direction, a third portion extending in the second direction, and a fourth portion extending at a fourth angle with respect to the second direction, and the second angle and the fourth angle are larger than the first angle.

公开(公告)号：US20230317737A1

公开(公告)日：2023-10-05

申请号：US18126814

申请日：2023-03-27

Applicant: Japan Display Inc.

Inventor： Tomokazu ISHIKAWA ,  Masaru NAKAKOMI ,  Teppei YAMADA ,  Akihiko SAITOH

IPC: H01L27/12 ,  G02F1/1362

CPC classification number: H01L27/1244 ,  G02F1/136286 ,  G02F1/136209 ,  G02F1/136263

Abstract: A display device includes an array substrate, a first region in which a plurality of scan lines extending in a first direction, a plurality of signal lines extending in a second direction, and a plurality of pixels are provided on the array substrate and that has a first side, a second side, a third side, a fourth side, and a plurality of curved line parts, a second region positioned between an end part of the array substrate and the first region, a signal-line coupling circuit disposed in the second region and coupled to the signal lines, a shield layer disposed in the second region and covering at least part of the signal-line coupling circuit near at least one of the curved line parts, and a gate driver circuit disposed in the second region outside the signal-line coupling circuit and coupled to the scan lines.

公开(公告)号：US20160071884A1

公开(公告)日：2016-03-10

申请号：US14844464

申请日：2015-09-03

Applicant: Japan Display Inc.

Inventor： Motoharu MIYAMOTO ,  Teppei YAMADA ,  Yasuhiro KANAYA

IPC: H01L27/12

CPC classification number: G02F1/136227 ,  G02F1/1362 ,  G02F1/136286 ,  G02F1/1368 ,  H01L27/1222 ,  H01L27/124 ,  H01L27/1251

Abstract: A display device is provided with a pixel and a dummy pixel including a gate line and a signal line. The dummy pixel includes the gate line and a dummy semiconductor layer crossing the gate line through an insulating layer. The dummy semiconductor layer is electrically separated from the dummy semiconductor layer of the dummy pixel adjacent in the Y direction dummy pixel. The dummy pixel further includes a dummy signal line extending in the Y direction. The dummy signal line is connected to the dummy semiconductor layer through a plurality of contact holes. The contact holes are arranged with the gate line interposed between them in plan view.

Abstract translation: 显示装置设置有像素和包括栅极线和信号线的虚拟像素。 虚拟像素包括栅极线和通过绝缘层与栅极线交叉的虚拟半导体层。 虚拟半导体层与在Y方向虚拟像素相邻的虚拟像素的虚拟半导体层电分离。 伪像素还包括在Y方向上延伸的虚拟信号线。 虚拟信号线通过多个接触孔连接到虚拟半导体层。 在平面图中，接触孔配置有插入在它们之间的栅极线。

公开(公告)号：US20240160059A1

公开(公告)日：2024-05-16

申请号：US18507638

申请日：2023-11-13

Applicant: Japan Display Inc.

Inventor： Hiroyuki ABE ,  Akihiko SAITOH ,  Teppei YAMADA

IPC: G02F1/1333 ,  G02F1/133 ,  G06V40/13 ,  G09G3/36

CPC classification number: G02F1/13338 ,  G02F1/13306 ,  G06V40/1318 ,  G09G3/3677 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2354/00

Abstract: According to one embodiment, an optical sensor-equipped liquid crystal display device includes a display panel and a driver IC. The display panel includes a display area including pixels, a surrounding area surrounding the display area, peripheral circuits provided in the surrounding area, and an optical sensor outputting a detection signal in response to incident light. The peripheral circuit includes a shift register, and a gate switch group connected to the shift register and including a first gate switch and a second gate switch. The first gate switch is connected to a switching element for driving the pixel via a scanning line. The second gate switch is connected to a switching element included in a sensor circuit for driving the optical sensor via a scanning line for sensor.

公开(公告)号：US20210103361A1

公开(公告)日：2021-04-08

申请号：US17061959

申请日：2020-10-02

Applicant: Japan Display Inc.

Inventor： Akihiko FUJISAWA ,  Teppei YAMADA ,  Kaoru ITO

IPC: G06F3/044 ,  G06F3/041

Abstract: A technology that can make the touch detection results at corner portions proper is proposed. A display device includes a display panel, a sensor substrate formed on the display panel, and plural drive electrodes and plural detection electrodes extended in a direction so as to intersect with the plural drive electrodes on the sensor substrate. Among the plural drive electrodes, any of the lengths of N first drive electrodes (where N represents the number), which are continuously adjacent to one another, is shorter than any of the lengths of the other drive electrodes. An area where at least one drive electrode among the N first drive electrodes and at least one detection electrode overlap each other is larger than the area of an intersectional portion where any of the other drive electrodes and any of the other detection electrodes overlap each other.

公开(公告)号：US20250029571A1

公开(公告)日：2025-01-23

申请号：US18907661

申请日：2024-10-07

Applicant: Japan Display Inc.

Inventor： Hiroyuki ABE ,  Akihiko SAITOH ,  Teppei YAMADA

IPC: G09G3/36 ,  G06V40/13

Abstract: According to one embodiment, a liquid crystal display device with an optical sensor includes a display panel and a driver IC. The display panel includes first to third signal lines, an optical sensor including a photoelectric conversion element, and a sensor signal line that is connected to the optical sensor and transmits a detection signal to the driver IC. One first wiring line drawn from one terminal of the driver IC is connected to four switching elements. Three of the four switching elements are electrically connected to one of the first to third signal lines, respectively. One of the four switching elements, different from the three switching elements, is electrically connected to the sensor signal line.

公开(公告)号：US20220171500A1

公开(公告)日：2022-06-02

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

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.