公开(公告)号：US20240192545A1

公开(公告)日：2024-06-13

申请号：US18526109

申请日：2023-12-01

Applicant: Japan Display Inc.

Inventor： Makoto MIYAO

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/13357

CPC classification number: G02F1/133524 ,  G02B6/0025 ,  G02B6/0031 ,  G02F1/133615

Abstract: A display panel includes a light source section, a light guide section, a liquid crystal layer, a partition section, a display section, and a diffusion section. The light source section can emit red light, green light, and blue light. A light source light emitted from the light source section enters the light guide section. The red light, the green light, and the blue light that have passed through the light guide section enter the liquid crystal layer. The partition section partitions the liquid crystal layer into plural pixel regions. An image formed by the red light, the green light, and the blue light emitted from the pixel regions is displayed on the display section. The diffusion section is provided in the light guide section and diffuses the red light, the green light, and the blue light that have entered the light guide section into the light guide section.

公开(公告)号：US20230266615A1

公开(公告)日：2023-08-24

申请号：US18109341

申请日：2023-02-14

Applicant: Japan Display Inc.

Inventor： Makoto MIYAO

IPC: G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133524 ,  G02F1/133603 ,  G02F1/133605

Abstract: A display panel includes a light guide plate fixed on a rear surface of a substrate via an adhesive layer, and a light guide plate fixed on a front surface of a substrate via an adhesive layer, a light source unit having light emitting diode elements, arranged on the rear surface of the substrate, and arranged at a position facing a side surface of the light guide plate, and a light source unit having a plurality of light emitting diode elements, arranged on the front surface of the substrate, and arranged at a position facing a side surface of the light guide plate. Refractive index of one of the adhesive layer and the adhesive layer is lower than refractive index of the other. The side surface of the light guide plate and the side surface of the light guide plate are on the same side in a first direction.

公开(公告)号：US20220357615A1

公开(公告)日：2022-11-10

申请号：US17656100

申请日：2022-03-23

Applicant: Japan Display Inc.

Inventor： Makoto MIYAO

IPC: G02F1/1333 ,  G02F1/1368 ,  G02F1/13357 ,  G02F1/1362 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/1334 ,  G02F1/1343

Abstract: The purpose is to suppress a temperature rise in the LED and the driver IC for a reliable transparent liquid crystal display device. An example of concrete structure to attain the purpose is: A display area is formed in an area where the TFT substrate and the counter substrate overlap, a terminal area is formed in an area where the TFT substrate and the counter substrate do not overlap, an LED is disposed in the terminal area opposing to a side surface of the counter substrate, the LED is connected to a printed wiring substrate, a driver IC to drive the liquid crystal display device is disposed in the terminal area, a metal plate is disposed between the driver IC and the printed wiring substrate, the metal plate contacts the printed wiring substrate via a first heat dissipation sheet, and contacts the driver IC via a second heat dissipation sheet.

公开(公告)号：US20220179149A1

公开(公告)日：2022-06-09

申请号：US17680428

申请日：2022-02-25

Applicant: Japan Display Inc.

Inventor： Masayuki MIFUNE ,  Makoto MIYAO

IPC: F21V8/00

Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.

公开(公告)号：US20200326466A1

公开(公告)日：2020-10-15

申请号：US16826317

申请日：2020-03-23

Applicant: Japan Display Inc.

Inventor： Makoto MIYAO

IPC: F21V8/00 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a display panel including a polymer dispersed liquid crystal layer, and a light-emitting module disposed along a side surface of the display panel. The light-emitting module includes a light-emitting element, a light guide disposed between the light-emitting element and the side surface, and a reflector. The light guide has a first surface and a second surface facing each other, a third surface facing the light-emitting element, and a fourth surface facing the side surface. The reflector is disposed on each of the first surface and the second surface.

公开(公告)号：US20190212488A1

公开(公告)日：2019-07-11

申请号：US16299519

申请日：2019-03-12

Applicant: Japan Display Inc.

Inventor： Masayuki MIFUNE ,  Makoto MIYAO

IPC: F21V8/00

CPC classification number: G02B6/0088 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0085 ,  G02B6/009 ,  G02B6/0091

Abstract: According to one embodiment, an illuminating device includes a lightguide plate including a curved emitting surface, and an incidence surface including a side edge curved along the emitting surface, a printed circuit board facing the incidence surface, and light sources mounted on the printed circuit board. Each light source includes a light-emitting center, a pair of connection terminals, and a central axis extending through the connection terminals and the light-emitting center. The light sources are arranged along a curved mounting line extending along the curved side edge of the incidence surface on the printed circuit board. The light-emitting centers are located on the mounting line, and the central axes are parallel to each other.