公开(公告)号：US20220315703A1

公开(公告)日：2022-10-06

申请号：US17842922

申请日：2022-06-17

Applicant: Japan Display Inc.

Inventor： Hidehiro SONODA ,  Takenori Hirota ,  Yasushi Tomioka ,  Noboru Kunimatsu

IPC: C08G73/10 ,  G02F1/1337 ,  C09D179/08

Abstract: According to one embodiment, a varnish for a photo alignment film includes an imidization promotor and a first polyamic acid-based compound in an organic solvent. The first polyamic acid-based compound is a polyamic acid or a polyamic acid ester. The imidization promotor has skeleton containing no primary amino group and no secondary amino group. The first polyamic acid-based compound has terminal skeletons containing no primary amino group.

公开(公告)号：US11462715B2

公开(公告)日：2022-10-04

申请号：US17004867

申请日：2020-08-27

Applicant: Japan Display Inc.

Inventor： Hiroki Ohara ,  Akinori Kamiya

IPC: H01L51/52 ,  H01L27/12 ,  H01L27/14 ,  H01L27/32 ,  H01L29/786 ,  G02F1/133 ,  G06F1/16 ,  G09F9/30 ,  G02F1/1333 ,  G02F1/1335

Abstract: A display device in one embodiment according to the present invention includes a first region including a light emitting layer, a first nitride insulating layer over the light emitting layer, a first organic insulating layer over the first nitride insulating layer, a second nitride insulating layer over the first organic insulating layer, and a third nitride insulating layer over the second nitride insulating layer. The second nitride insulating layer is in contact with the first organic insulating layer and the third nitride insulating layer. An absolute value of a stress of the second nitride insulating layer is greater than or equal to an absolute value of a stress of the first nitride insulating layer and less than an absolute value of a stress of the third nitride insulating layer.

公开(公告)号：US20220312590A1

公开(公告)日：2022-09-29

申请号：US17806830

申请日：2022-06-14

Applicant: Japan Display Inc.

Inventor： Yasushi KAWATA

IPC: H05K1/02 ,  H05K1/18

Abstract: According to one embodiment, a flexible substrate includes an insulating basement, a plurality of wiring lines, a plurality of electrical elements connected to the plurality of wiring lines, and a metal layer. The insulating basement includes a plurality of line portions supporting the plurality of wiring lines, and a plurality of island-shaped portions supporting the plurality of electrical elements. The plurality of line portions connect the plurality of island-shaped portions. The plurality of wiring lines and the electrical elements are located between the insulating basement and the metal layer.

公开(公告)号：US20220308394A1

公开(公告)日：2022-09-29

申请号：US17655684

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Koichi IGETA

IPC: G02F1/1335 ,  G02F1/1337

Abstract: According to one embodiment, a liquid crystal element includes a first transparent substrate, a second transparent substrate, and a first liquid crystal layer cured. The first liquid crystal layer contains first cholesteric liquid crystal and has a reflective surface which reflects first circularly polarized light having a first wavelength. A first helical axis of the first cholesteric liquid crystal is tilted in a uniform direction over an entire area of the first liquid crystal layer. Each of a first outer surface of the first transparent substrate and a second outer surface of the second transparent substrate forms an interface which totally reflects the first circularly polarized light reflected in the first liquid crystal layer.

公开(公告)号：US11454849B2

公开(公告)日：2022-09-27

申请号：US17345650

申请日：2021-06-11

Applicant: Japan Display Inc.

Inventor： Masato Nakamura ,  Daichi Hosokawa ,  Yuki Kuramoto ,  Hideyuki Takahashi

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1337 ,  G02F1/1333

Abstract: According to one embodiment, a liquid crystal display device includes a first area, second area, liquid crystal layer, and a plurality of pixels. Each subpixel includes an opening area including a first opening area and a second opening area. The pixels include a first pixel positioned in the first area and a second pixel positioned over a boundary of the first area and the second area. The opening area of the second pixel is smaller than the opening area of the first pixel when opening areas of subpixels of same color are compared. An each imaginary line showing the boundary of the first opening area and the second opening area is a same straight line.

公开(公告)号：US20220302204A1

公开(公告)日：2022-09-22

申请号：US17686430

申请日：2022-03-04

Applicant: Japan Display Inc.

Inventor： Kenichi TAKEMASA

IPC: H01L27/15 ,  H01L27/12 ,  H01L33/62

Abstract: A method for manufacturing a display device includes forming a drive circuit to drive an LED element on an insulating substrate; forming a light absorbing layer on the drive circuit; forming an insulating layer covering the light absorbing layer; forming a connecting electrode electrically connected to the drive circuit; arranging the LED element so that the connecting electrode is in contact with a terminal electrode of the LED element; and bonding the connecting electrode and the terminal electrode by irradiating laser light through a semiconductor layer of the LED element to the light absorbing layer.

公开(公告)号：US20220299813A1

公开(公告)日：2022-09-22

申请号：US17655440

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Hiroyuki ABE ,  Masateru MORIMOTO ,  Akihiko SAITOH

IPC: G02F1/1333 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a base, a sensor and a sensor circuit. The sensor is interposed between the base and the liquid crystal layer in a display area including pixels. The sensor outputs a sensing signal corresponding to light incident from alongside the liquid crystal layer. The sensor circuit includes a plurality of switching elements. The pixels include first to third sub-pixels. At least some of elements of the switching elements are arranged in each of areas where the first to third sub-pixels are arranged. A signal line for the sensor, which outputs the sensing signal, is placed on a same layer as a feeding line connected to the sensor.

公开(公告)号：US11443702B2

公开(公告)日：2022-09-13

申请号：US17345579

申请日：2021-06-11

Applicant: Japan Display Inc.

Inventor： Hisashi Tomitani

IPC: G09G3/34 ,  G09G3/36

Abstract: A display device includes: a liquid crystal display panel including a liquid crystal between two substrates; and first, second, and third light sources emitting light in different colors. A light emission period includes a first light emission period is which luminance of the first light source is higher than luminance of the second and third light sources, and at least one of the second and third light sources emits light, a second light emission period in which the luminance of the second light source is higher than the luminance of the first and the third light sources, and at least one of the first and third light sources emits light, and a third light emission period in which the luminance of the third light source is higher than the luminance of the first and second light sources, and at least one of the first and second light sources emits light.

公开(公告)号：US11442515B2

公开(公告)日：2022-09-13

申请号：US17034722

申请日：2020-09-28

Applicant: Japan Display Inc.

Inventor： Akihiro Hanada ,  Hajime Watakabe ,  Kazufumi Watabe

IPC: H01L27/12 ,  H01L29/786 ,  H01L29/423 ,  H01L29/51 ,  G06F1/26 ,  H02J13/00 ,  H04L41/069 ,  H04L47/2416 ,  H04L67/12 ,  H04Q9/02

Abstract: According to one embodiment, a semiconductor device includes an insulating substrate, a first semiconductor layer formed of silicon and positioned above the insulating substrate, a second semiconductor layer formed of a metal oxide and positioned above the first semiconductor layer, a first insulating film formed of a silicon nitride and positioned between the first semiconductor layer and the second semiconductor layer, and a block layer positioned between the first semiconductor film and the second semiconductor layer, the block layer hydrogen diffusion of which is lower than that of the first insulating film.

公开(公告)号：US20220284728A1

公开(公告)日：2022-09-08

申请号：US17752979

申请日：2022-05-25

Applicant: Japan Display Inc.

Inventor： Tomokazu ISHIKAWA ,  Masashi SHISHIKURA

IPC: G06V40/13

Abstract: A method for manufacturing a detection device, the detection device comprising a substrate, a plurality of sensor elements arranged on a first principal surface of the substrate, and an insulating film provided above the substrate so as to cover the sensor elements, and the method comprising: causing the first principal surfaces of a pair of the substrates on each of which the sensor elements, the insulating film, and a first projection projecting from a surface of the insulating film are formed to face each other, and bonding together the pair of the substrates; and polishing a second principal surface of each of the pair of the substrates on a side opposite to the first principal surface in a state where the pair of the substrates are bonded together.