公开(公告)号：US12282235B2

公开(公告)日：2025-04-22

申请号：US18797579

申请日：2024-08-08

Applicant: Japan Display Inc.

Inventor： Yasushi Tomioka ,  Yosuke Hyodo ,  Hidehiro Sonoda ,  Noboru Kunimatsu

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.

公开(公告)号：US12282224B2

公开(公告)日：2025-04-22

申请号：US18796391

申请日：2024-08-07

Applicant: Japan Display Inc.

Inventor： Takashi Ota ,  Michihide Shibata ,  Nobuyuki Suzuki ,  Masafumi Okada

IPC: G02F1/1335 ,  G02F1/13357

Abstract: A backlight includes: a light source capable of emitting light spreading in first and second directions perpendicular to each other, from an optical axis; a first cylindrical lens that refracts and brings the light closer along the first direction to the optical axis, the first cylindrical lens overlapping with the light source in a third direction perpendicular to the first and second directions; a second cylindrical lens that refracts and brings the light even closer along the first direction to the optical axis, the second cylindrical lens overlapping with the light source and the first cylindrical lens in the third direction; and a reflector that reflects and brings the light closer along the second direction to the optical axis, the reflector being positioned between the first cylindrical lens and the second cylindrical lens in the third direction, the reflector avoiding overlap with the light source.

公开(公告)号：US12282217B2

公开(公告)日：2025-04-22

申请号：US18116936

申请日：2023-03-03

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Kentaro Okuyama ,  Yoshihide Ohue ,  Yuuji Oomori

IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/1337 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1362

Abstract: A display device includes: an array substrate; a counter substrate; a liquid crystal layer between the array substrate and the counter substrate; and a light source. The array substrate includes: signal lines; scanning lines; a grid-shaped organic insulating layer that extends along the scanning lines and the signal lines and overlies the scanning lines and the signal lines; pixel electrodes provided in regions surrounded by the scanning lines and the signal lines; and a first orientation film that covers the pixel electrodes. A portion of each pixel electrodes overlaps a slant surface of the organic insulating layer. The counter substrate includes: a common electrode overlapping the respective pixel electrodes; a protective film that has an insulating capability and a light transmitting capability and covers a side of the common electrode facing the array substrate at least in the display region; and a second orientation film that covers the protective film.

公开(公告)号：US20250126845A1

公开(公告)日：2025-04-17

申请号：US18960190

申请日：2024-11-26

Applicant: Japan Display Inc.

Inventor： Akihiro HANADA ,  Takuo KAITOH ,  Masashi TSUBUKU

IPC: H10D30/67

Abstract: The purpose of the present invention is to suppress a variation in a threshold voltage (Δ Vth) in a Thin Film Transistor (TFT) using an oxide semiconductor. The present invention takes a structure as follows to attain this purpose. A semiconductor device having TFT using an oxide semiconductor including: a channel region, a source region, a drain region, and a transition region between the channel region and the source region and between the channel region and the drain region, in which a resistivity of the transition region is smaller than that of the channel region, and larger than that of the source region or the drain region; a source electrode is formed overlapping the source region, and a drain electrode is formed overlapping the drain region; and a thickness of the transition region of the oxide semiconductor is larger than a thickness of the channel region of the oxide semiconductor.

公开(公告)号：US20250124585A1

公开(公告)日：2025-04-17

申请号：US19002940

申请日：2024-12-27

Applicant: Japan Display Inc.

Inventor： Hitoshi TANAKA ,  Hirondo NAKATOGAWA ,  Yoshiro AOKI

IPC: G06T7/50 ,  G06T7/13 ,  G06T9/00 ,  G06V10/56

Abstract: Provided is a subject depth estimation method including the steps of obtaining a non-masked captured image by imaging a subject in a state where no mask is installed, determining a representative edge direction based on an edge image included in the non-masked captured image, selecting, from among a plurality of masks prepared in advance, a combination of the masks with a relatively highest depth estimation accuracy of an object corresponding to an image representing an edge in an equal direction to the representative edge direction, obtaining a plurality of masked captured images by imaging the subject using each of the masks included in the selected combination of the masks, and calculating a depth estimation value of the subject at each of a plurality of positions by performing decoding processing based on a point spread function unique to each of the masks selected on the plurality of masked captured images.

公开(公告)号：US20250116900A1

公开(公告)日：2025-04-10

申请号：US18988096

申请日：2024-12-19

Applicant: Japan Display Inc.

Inventor： Tae KUROKAWA ,  Takeo KOITO ,  Kojiro IKEDA

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/1347

Abstract: A liquid crystal light control device in an embodiment according to the present invention includes a first liquid crystal cell, a second liquid crystal cell overlapping the first liquid crystal cell, a third liquid crystal cell overlapping the second liquid crystal cell, and a fourth liquid crystal cell overlapping the third liquid crystal, each of the first liquid crystal cell, the second liquid crystal cell, the third liquid crystal cell, and the fourth liquid crystal cell includes a first substrate arranged with a first electrode having a strip pattern, a second substrate arranged with a second electrode having a strip pattern, and a liquid crystal layer between the first substrate and the second substrate. The first substrate and the second substrate are arranged with a longitudinal direction of the strip pattern of the first electrode and second electrode intersecting.

公开(公告)号：US12271564B2

公开(公告)日：2025-04-08

申请号：US18418616

申请日：2024-01-22

Applicant: Japan Display Inc.

Inventor： Hiroshi Yamaguchi

IPC: G06F3/044 ,  G06F3/041

Abstract: A detecting device includes a plurality of sensor electrodes provided to a detection region, a power supply circuit configured to generate a second reference potential that fluctuates periodically based on a first power supply potential that is substantially constant with respect to a first reference potential serving as a fixed potential and generate a second power supply potential that is substantially constant with respect to the second reference potential, and an AFE circuit configured to supply a drive signal to the sensor electrodes, acquire a detection signal generated in the sensor electrodes, and output a square wave signal in synchronization with the drive signal.

公开(公告)号：US20250113625A1

公开(公告)日：2025-04-03

申请号：US18897125

申请日：2024-09-26

Applicant: Japan Display Inc.

Inventor： Hajime WATAKABE ,  Masashi TSUBUKU ,  Toshinari SASAKI ,  Takaya TAMARU ,  Marina MOCHIZUKI ,  Masahiro WATABE

IPC: H01L31/119 ,  H01L25/04 ,  H01L31/02 ,  H01L31/0224

Abstract: A radiation detector according to an embodiment of the present invention includes: a transistor in which an oxide semiconductor layer is used in a channel of the transistor; a photoelectric converting layer connected to the transistor; a wavelength converting layer facing the photoelectric converting layer and capable of emitting visible light based on radioactive rays absorbed by the wavelength converting layer; and an oxide layer in contact with the oxide semiconductor layer between the transistor and the photoelectric converting layer, wherein a thickness of the oxide layer is 50 nm or less.

公开(公告)号：US20250110367A1

公开(公告)日：2025-04-03

申请号：US18898013

申请日：2024-09-26

Applicant: Japan Display Inc.

Inventor： Yoshinori TANAKA ,  Keita ONO ,  Keiji TAGO

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/13357

Abstract: According to one embodiment, a display device includes a display panel including a first end portion and a second end portion located on a side opposite to the first end portion, a first light source emitting light to the first end portion, and a first reflective member. The display panel includes an array substrate, a counter-substrate opposed to the array substrate, and a liquid crystal layer provided between the array substrate and the counter-substrate. The array substrate has a first end face which is located in the first end portion and on which the first reflective member is provided.

公开(公告)号：US20250110335A1

公开(公告)日：2025-04-03

申请号：US18899315

申请日：2024-09-27

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Chikyu NAKAOKA ,  Takeo KOITO

IPC: G02B27/01

Abstract: According to an aspect, a head-up display causes an image reflected by a light transmitting member to be superimposed on a real image transmitted by the light transmitting member and causes the superimposed image to be visually recognized as a virtual image by an viewer. The head-up display includes a display device and a magnification optical system. The display device includes a backlight, a first image display panel that receives direct light from the backlight, and a second image display panel that is disposed with a gap between the second image display panel and the first image display panel and receives light transmitted by the first image display panel. The first image display panel includes a first polarizer provided between the first image display panel and the backlight. The second image display panel includes a second polarizer provided between the second image display panel and the magnification optical system.