公开(公告)号：US12292643B2

公开(公告)日：2025-05-06

申请号：US18476538

申请日：2023-09-28

Applicant: Japan Display Inc.

Inventor： Shuichi Osawa

IPC: G02F1/1335 ,  G02F1/1345

Abstract: A display device includes a display panel including a pixel and a drive circuit configured to drive the pixel, a light source device configured to emit emitted light toward the display panel, a color separation element placed between the display panel and the light source device, the color separation element being configured to disperse the emitted light and to emit, to the pixel, a plurality of rays of separated light with wavelengths different from each other, and a light-shielding member placed in the display panel, the light-shielding member being configured to block the emitted light heading toward the drive circuit.

公开(公告)号：US12292593B2

公开(公告)日：2025-05-06

申请号：US18366773

申请日：2023-08-08

Applicant: Japan Display Inc.

Inventor： Makoto Hasegawa ,  Masafumi Okada

IPC: F21V8/00

Abstract: A lighting device capable of changing light direction includes: a light guide plate having a first side surface extending in a first direction; and LEDs at the first side surface, in which the light guide plate has a first area extending in a second direction which is a direction perpendicular to the first direction and a second area extending in the second direction and adjacent to the first area, corresponding to the first area, at least one LED is arranged at the first side surface, corresponding to the second area, at least one LED is arranged at the first side surface, a first prism array is formed under a bottom surface of the first area, and a second prism array is formed under a bottom surface of the second area, and a prism height of the second prism array is taller than a prism height of the first prism array.

公开(公告)号：US20250138312A1

公开(公告)日：2025-05-01

申请号：US18925431

申请日：2024-10-24

Applicant: Japan Display Inc.

Inventor： Kazunari TOMIZAWA ,  Chikyu NAKAOKA ,  Takeo KOITO ,  Yuta HAGA

IPC: G02B27/01

Abstract: According to an aspect, a display device includes: a backlight, first and second image display panels. The first image display panel includes: a first polarizing plate configured to transmit light polarized in a first direction and block light polarized in a direction different from the first direction; and a first color filter provided between the first polarizing plate and the second image display panel. The second image display panel includes: a second polarizing plate configured to transmit light polarized in a second direction and block light polarized in a direction different from the second direction; and a second color filter provided between at least the second polarizing plate and the first image display panel. The thickness of the first color filter is different from the thickness of the second color filter. Another polarizing plate is not provided between the first image display panel and the second image display panel.

公开(公告)号：US20250134384A1

公开(公告)日：2025-05-01

申请号：US19007956

申请日：2025-01-02

Applicant: Japan Display Inc.

Inventor： Yuta HAGA

IPC: A61B5/00

Abstract: According to an aspect, a detection device includes: a light source; a plurality of optical sensors that are arranged so as to be capable of receiving light of the light source and have light-receiving areas different in size; a detection circuit that is electrically coupled to each of the optical sensors and configured to detect waveform data that allows an amount of received light of each of the optical sensors to be identified; and a control circuit configured to select at least one piece of the waveform data having waveform amplitude that satisfies a selection condition from a plurality of pieces of the waveform data detected by the optical sensors.

公开(公告)号：US20250130463A1

公开(公告)日：2025-04-24

申请号：US18918238

申请日：2024-10-17

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

Abstract: According to an aspect, a display device includes an array substrate, a counter substrate, and a liquid crystal layer including liquid crystal molecules. The array substrate includes signal lines arrayed in a first direction, scanning lines arrayed in a second direction, pixel electrodes disposed respectively in openings of pixels, semiconductors provided respectively to the pixels, and a common electrode overlapping the pixel electrodes with an insulating film interposed therebetween. An end of each pixel electrode overlaps the opening of a corresponding one of the pixels. A slit of the common electrode has a polygonal shape. In the opening of each pixel, a first part of the slit overlaps the pixel electrode, and a second part of the slit overlaps a region not provided with the pixel electrode.

公开(公告)号：US20250130168A1

公开(公告)日：2025-04-24

申请号：US19007588

申请日：2025-01-02

Applicant: Japan Display Inc.

Inventor： Yasuhiro TAKAHASHI

IPC: G01N21/64

Abstract: A fluorescence detection device that has higher detection sensitivity for fluorescence is provided. The fluorescence detection device includes: a light source configured to irradiate a sample with excitation light in a circularly polarized state; a cholesteric liquid crystal layer configured to cause fluorescence emitted by the sample due to the excitation light to transmit therethrough and reflect the excitation light; and detection circuitry configured to detect the fluorescence transmitted through the cholesteric liquid crystal layer.

公开(公告)号：US12284831B2

公开(公告)日：2025-04-22

申请号：US18487263

申请日：2023-10-16

Applicant: Japan Display Inc.

Inventor： Akihiro Hanada ,  Toshihide Jinnai

IPC: H01L27/12 ,  H10D30/67 ,  H10D86/40 ,  H10D86/60 ,  H10D99/00

Abstract: An object of the present invention is to provide a technology using which, in a thin film transistor using oxide semiconductor, the resistance of a channel region of the oxide semiconductor is made high, and at the same time the resistances of a source region and a drain region of the oxide semiconductor are made low. There is provided a semiconductor device including: a thin film transistor including oxide semiconductor, the oxide semiconductor including a channel region, a drain region, and a source region; a gate insulating film formed on the channel region; an aluminum oxide film formed on the gate insulating film; and a gate electrode formed on the aluminum oxide film, wherein the aluminum oxide film has a region that covers neither the drain region nor the source region in a plane view.

公开(公告)号：US12284754B2

公开(公告)日：2025-04-22

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：US12283581B2

公开(公告)日：2025-04-22

申请号：US17454535

申请日：2021-11-11

Applicant: Japan Display Inc.

Inventor： Yasuhiro Kanaya

IPC: H01L25/16 ,  H01L27/12 ,  H01L33/40

Abstract: According to one embodiment, a display device includes a substrate, a light-emitting element mounted on the substrate, an anode terminal disposed on an bottom portion of the light-emitting element and a cathode terminal disposed on an emitting surface of the light emitting element, on an opposite side to the anode terminal, and the cathode terminal is formed of a metal material.

公开(公告)号：US12283579B2

公开(公告)日：2025-04-22

申请号：US17359657

申请日：2021-06-28

Applicant: Japan Display Inc.

Inventor： Yoshinori Aoki ,  Masanobu Ikeda

IPC: H01L29/12 ,  H01L23/60 ,  H01L25/16 ,  H01L29/786

Abstract: A display device includes a display region in which a plurality of pixel portions is arranged in a matrix on a substrate, each of the plurality of pixel portions including an LED chip, a transistor, and a capacitor. Through the transistor, a first electrode of the LED chip is connected to a first wiring to which one of power supply voltages is supplied. A second electrode of the LED chip is connected to a second wiring to which another of the power supply voltages is supplied. A first electrode of the capacitor is connected to the first electrode of the LED chip. The plurality of pixel portions includes at least one first pixel portion which is located on an outermost periphery of the display region and at least one second pixel portion which is not located on the outermost periphery of the display region.