公开(公告)号：US20210318483A1

公开(公告)日：2021-10-14

申请号：US17357145

申请日：2021-06-24

申请人： Japan Display Inc.

发明人： Koji HIRAMOTO ,  Masafumi OKADA ,  Hiroshi NAKAMOTO ,  Ken KAGABU ,  Ken SUGIYAMA

IPC分类号： F21V8/00

摘要： According to an aspect, a display device includes: a display panel configured to transmit light; and an illumination device provided on a rear surface side of the display panel. The illumination device includes a plurality of light sources configured to emit light, and a light guiding member that has translucency and is arranged between the light sources on the rear surface side of the display panel. The light guiding member has a plurality of holes each of which opens in a first direction intersecting with a rear surface of the display panel and in each of which a corresponding one of the light sources is disposed, and a light guiding portion surrounding the holes. A rear surface of the light guiding portion is provided with a first inclined surface inclined with respect to the first direction and a plane orthogonal to the first direction.

公开(公告)号：US20230010210A1

公开(公告)日：2023-01-12

申请号：US17858235

申请日：2022-07-06

申请人： Japan Display Inc.

发明人： Koji FUJISAWA ,  Ken KAGABU ,  Hiroaki KIJIMA ,  Ken ONODA

IPC分类号： F21V8/00

摘要： According to one embodiment, an illumination device, in which a plurality of light guides include a plurality of light guide pairs, each of the plurality of light guide pairs includes a first light guide and a second light guide, the plurality of light guide pairs are connected with their long sides opposed to each other, a plurality of laser light source elements include a plurality of first light source elements arranged to be opposed to a first side surface on a short side of the first light guide of the light guide pair, and a plurality of second light source elements arranged to be opposed to a second side surface of the second light guide of the light guide pair.

公开(公告)号：US20230003363A1

公开(公告)日：2023-01-05

申请号：US17939408

申请日：2022-09-07

申请人： Japan Display Inc.

发明人： Makoto HASEGAWA ,  Nobuyuki SUZUKI ,  Ken KAGABU

IPC分类号： F21V14/00 ,  F21V7/06 ,  G02F1/1337 ,  G02F1/1343 ,  F21V31/04 ,  G02F1/137 ,  F21V7/00 ,  F21V29/76

摘要： The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task:
A lighting device having an emitting surface and a bottom opposing to the emitting surface including: a resin, set between the emitting surface and the bottom, having a hole at a center, a reflection block set in the hole at a side of the emitting surface, an LED, which is a light source, set in the hole at a side of the bottom, a space between the LED and the reflection block, in which the resin is contained in a container whose inner surface is a reflecting surface.

公开(公告)号：US20220268986A1

公开(公告)日：2022-08-25

申请号：US17742653

申请日：2022-05-12

申请人： Japan Display Inc.

发明人： Koji HIRAMOTO ,  Masafumi OKADA ,  Hiroshi NAKAMOTO ,  Ken KAGABU ,  Ken SUGIYAMA

IPC分类号： F21V8/00 ,  G02F1/13357

摘要： Display device is provided and includes display panel; and illumination device provided on rear surface side of display panel, wherein illumination device includes light sources, and light guiding member arranged at rear surface side of display panel, light guiding member has holes which penetrates the light guiding member, light sources are housed in corresponding hole, rear surface of light guiding member has first inclined surface inclined upwardly from light source housed in one of holes, front surface side of light guiding member has second inclined surface inclined upwardly from light source housed in one of the holes, and angle of first inclined surface to center line of one of holes is greater than angle of second inclined surface to center line.

公开(公告)号：US20210325024A1

公开(公告)日：2021-10-21

申请号：US17226144

申请日：2021-04-09

申请人： Japan Display Inc.

发明人： Makoto HASEGAWA ,  Nobuyuki SUZUKI ,  Ken KAGABU

IPC分类号： F21V14/00 ,  F21V7/06 ,  G02F1/1337 ,  G02F1/1343 ,  F21V29/76 ,  F21V31/04 ,  G02F1/137 ,  F21V7/00

摘要： The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device having an emitting surface and a bottom opposing to the emitting surface including: a resin, set between the emitting surface and the bottom, having a hole at a center, a reflection block set in the hole at a side of the emitting surface, an LED, which is a light source, set in the hole at a side of the bottom, a space between the LED and the reflection block, in which the resin is contained in a container whose inner surface is a reflecting surface.

公开(公告)号：US20140192293A1

公开(公告)日：2014-07-10

申请号：US14147736

申请日：2014-01-06

申请人： Japan Display Inc.

发明人： Ken KAGABU ,  Yasuhisa SHIRAISHI ,  Yoshikazu TANABE ,  Yoshihiro NISHIMINE

IPC分类号： F21V8/00

CPC分类号： G02B6/0038 ,  G02B6/0016 ,  G02B6/0043 ,  G02B6/0055

摘要： A liquid crystal display device includes: a light guide plate including a front surface, a back surface and an edge surface, the light guide plate being arranged such that the edge surface faces a light source, the light guide plate internally reflecting light incident from the edge surface and causing surface emission from the front surface; a liquid crystal display panel; and a reflective sheet arranged so as to face the back surface of the light guide plate. The back surface includes a first portion and a second portion. A surface of the second portion is located at a position recessed relatively from a surface of the first portion. The surface of the first portion is a rough surface. The surface of the second portion is a smooth surface. The reflective sheet is in contact with the first portion but avoids contact with the second portion.

摘要翻译： 一种液晶显示装置，包括：导光板，其具有前表面，后表面和边缘表面，所述导光板被配置为使得所述边缘表面面对光源，所述导光板内部反射从所述导光板入射的光 边缘表面并引起来自表面的表面发射; 液晶显示面板; 以及布置成面对导光板的后表面的反射片。 后表面包括第一部分和第二部分。 第二部分的表面位于相对于第一部分的表面凹陷的位置处。 第一部分的表面是粗糙的表面。 第二部分的表面是光滑的表面。 反射片与第一部分接触，但避免与第二部分接触。