公开(公告)号：US12253768B2

公开(公告)日：2025-03-18

申请号：US18654148

申请日：2024-05-03

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Hiroyuki Abe ,  Kazune Matsumura

IPC: G02F1/1345 ,  G02F1/1362 ,  G09G3/36

Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.

公开(公告)号：US11887555B2

公开(公告)日：2024-01-30

申请号：US17837097

申请日：2022-06-10

Applicant: Japan Display Inc.

Inventor： Takayuki Suzuki ,  Hiroyuki Abe

IPC: G09G3/36 ,  G02F1/1345 ,  G11C19/28 ,  G02F1/1368 ,  G02F1/1362

CPC classification number: G09G3/3677 ,  G02F1/1345 ,  G02F1/1368 ,  G11C19/28 ,  G11C19/287 ,  G02F1/136286 ,  G02F1/136295 ,  G02F2201/56 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A display device with a variant-shape display region other than the rectangular display region is configured to form a scanning line drive circuit along the variant-shape display region. The scanning line drive circuit includes bus wiring group with clock wiring for supplying clocks with three or more phases and the power supply wiring for supplying power, and the unit circuits for configuring the shift register including five or more transistors. The bus wiring and the unit circuits are formed on the different regions so as not to cross with one another.

公开(公告)号：US11719982B2

公开(公告)日：2023-08-08

申请号：US17552410

申请日：2021-12-16

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata ,  Masaki Murase ,  Kazune Matsumura

IPC: G02F1/1345 ,  H05K9/00 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1335

CPC classification number: G02F1/13458 ,  G02F1/1368 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/136227 ,  G02F1/136286 ,  H01L27/1248 ,  H05K9/0096 ,  G02F1/13452 ,  G02F1/13629 ,  G02F1/133519 ,  G02F1/134363 ,  G02F1/136204 ,  G02F1/136218 ,  G02F1/136295 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/50 ,  H01L27/124

Abstract: In an IPS-mode liquid crystal display device, the area of a terminal portion is decreased. A liquid crystal display device includes a TFT substrate and a counter substrate attached to the TFT substrate with a sealing material, and includes a display region and a terminal portion formed on the TFT substrate. A shielding transparent conductive film is formed on the outer side of the counter substrate. On the terminal portion, an earth pad formed with a transparent conductive film is formed on an organic passivation film. The shielding transparent conductive film is connected to the earth pad through a conductor. Below organic passivation film of the terminal portion, a wire is formed.

公开(公告)号：US11340505B2

公开(公告)日：2022-05-24

申请号：US17062682

申请日：2020-10-05

Applicant: Japan Display Inc.

Inventor： Gen Koide ,  Hiroyuki Abe ,  Kazune Matsumura

IPC: G02F1/1345 ,  G02F1/1362 ,  G09G3/36

Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.

公开(公告)号：US11119372B2

公开(公告)日：2021-09-14

申请号：US15890994

申请日：2018-02-07

Applicant: Japan Display Inc.

Inventor： Koji Yamamoto ,  Hiroyuki Abe ,  Naoki Miyanaga

IPC: G02F1/1362 ,  G06F3/044 ,  G02F1/1333 ,  G06F3/041 ,  G02F1/1343 ,  G02F1/1337

Abstract: A third metal wire, a common power supply line, a sensor power supply line, a selector switch 58, and a shield portion are provided. The third metal wire is provided on a first sensor electrode formed in a display region of an array substrate. The common power supply line and the sensor power supply line are provided in a peripheral region of the array substrate. The selector switch 58 is configured to supply either DC common voltage or AC sensor voltage to the first sensor electrode. The shield portion has a mesh shape. The shield portion is provided above the sensor power supply line. The shield portion is formed using the same material as the third metal wire.

公开(公告)号：US10969641B2

公开(公告)日：2021-04-06

申请号：US16782223

申请日：2020-02-05

Applicant: Japan Display Inc.

Inventor： Takayuki Suzuki ,  Hiroyuki Abe

IPC: G02F1/1362 ,  G02F1/1345 ,  G09G3/36 ,  G02F1/133 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1343

Abstract: A liquid crystal display device having an outer shape of a display region formed other than a rectangle. A driver for supplying a video signal is disposed outside the display region. A selector with selector TFT is disposed between the display region and the driver. A video signal line is disposed between the driver and the selector, and a drain line is disposed between the selector and the display region. A scanning circuit for supplying a scanning signal to the scanning line is disposed outside the display region. The selector is disposed between the scanning line and the display region, and covered with ITO as the common electrode. The common bus wiring is disposed outside the selector.

公开(公告)号：US10571769B2

公开(公告)日：2020-02-25

申请号：US15833062

申请日：2017-12-06

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kentaro Agata

IPC: G02F1/1362 ,  G02F1/1333 ,  G02F1/1339 ,  G09G3/36 ,  G02F1/1345

Abstract: It is possible to reduce a size of a lower frame region to ensure a wiring corrosion margin equivalent to that of a conventional technique. In a display device, a video signal wiring arranged in the lower frame region includes, in a region between a terminal section (terminal) and a video signal line, a first wiring formed on a first wiring layer and having one end connected to the terminal section to which a video signal line driving circuit is connected, a second wiring formed on a second wiring layer different from the first wiring layer and having one end connected to the other end of the first wiring, and a third wiring formed on the first wiring layer and having one end connected to the other end of the second wiring. The other end of the third wiring is connected to the video signal line via a fourth wiring formed on the second wiring layer, and the first wiring layer is formed on the side closer to an array substrate than to the second wiring layer.

公开(公告)号：US10545597B2

公开(公告)日：2020-01-28

申请号：US16145505

申请日：2018-09-28

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Kazune Matsumura ,  Naoki Miyanaga

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  H04B5/00 ,  G09G3/3225

Abstract: A display device having a Near Field Communication (NFC) function and a display panel installed with the touch panel function comprising: the common voltage is applied to all the display electrodes (Tx1 through Txn) during a display operation; the voltage for the touch panel is successively applied to the display electrodes during the touch panel operation; a first circuit, which changes between the display operation and the touch panel operation, is formed at a first side of the display area, a second circuit, which changes between the image display operation and the touch panel operation, is formed at a second side of the display area; the first circuit supplies the voltage for the touch panel to a selected display electrode and supplies the common electrode to other electrodes; the second switch circuit does not supply voltage to the selected display electrode and supplies the common voltage to other electrodes.

公开(公告)号：US20190391454A1

公开(公告)日：2019-12-26

申请号：US16442768

申请日：2019-06-17

Applicant: Japan Display Inc.

Inventor： Gen KOIDE ,  Hiroyuki Abe ,  Kazune Matsumura

IPC: G02F1/1362 ,  G02F1/1345 ,  H01L27/12

Abstract: According to an aspect, a display device includes: a substrate; a display region; a peripheral region; signal lines; terminals; wires coupling the terminals and the signal lines in the peripheral region; and first and second metal layers in different layers perpendicularly to the substrate and an insulating film in the peripheral region. The peripheral region includes: a first wiring region, in which the wires are electrically coupled to the signal lines; a second wiring region between the first wiring region and the terminals, and in which at least one or more wires pass through the first and second metal layers; and a third wiring region between the first and second wiring regions, and in which the wires extend in a second direction intersecting the first direction. The third wiring region includes contacts coupling the first and second metal layers, and a virtual line connecting the contacts has a curved shape.

公开(公告)号：US10453417B2

公开(公告)日：2019-10-22

申请号：US16257267

申请日：2019-01-25

Applicant: Japan Display Inc.

Inventor： Hiroyuki Abe ,  Takayuki Suzuki

IPC: G09G3/36 ,  G11C19/28

Abstract: The plurality of stages of circuit blocks of a driver circuit in a display device include a first transistor and a second transistor. The first transistor is connected at its gate with a first node and controls conductivity between a scanning signal line and a first clock signal line applied with a first clock signal. The first node is at an active potential when at least any one signal of signals output from one stage in each of a forward direction and a reverse direction is at the active potential. The second transistor is connected at its gate with the first node and controls conductivity between the first clock signal line and an input signal line of another stage of circuit block.