IP Library › Granted Patent US 10,962,828
Granted Patent B2
US 10,962,828 · App. 16/689,068 · Granted Mar 30, 2021

Illumination device and display using light reflector

Inventors: Youzou Kyoukane (Sakai, JP); Takeshi Masuda (Sakai, JP); Hisashi Watanabe (Sakai, JP); Hirotoshi Yasunaga (Sakai, JP)
Assignee: SHARP KABUSHIKI KAISHA
G02F1/133603G02F1/133605G02F1/133608
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Quick Facts
Patent No.
US 10,962,828
App. No.
16/689,068
Granted
Mar 30, 2021
Kind
B2
Abstract

[Object] To provide an illumination device that suppresses degradation of display quality by preventing damage of light source elements, a reflection sheet, and an optical sheet; and a display. [Solution] A backlight device 10 includes: an LED substrate 11 ; a plurality of LEDs 15 disposed adjacent to each other on the LED substrate 11 ; an optical member 24 disposed to face the LEDs 15 ; a reflection sheet 12 disposed on the LED substrate 11 and having a plurality of openings at which the LEDs 15 are disposed; and a support body 17 formed at least in a gap between the reflection sheet 12 and the LEDs 15 , at at least one of the plurality of openings, the support body 17 projecting further than the LEDs 15 on a side opposite to the LED substrate 11 and supporting the optical member 24.

Claims (26)

1. An illumination device comprising:

a substrate;

a plurality of light source elements disposed adjacent to each other on the substrate;

an optical member disposed to face the light source elements;

a reflection member disposed on the substrate and having a plurality of openings at which the light source elements are disposed; and

a support body within at least one of the plurality of openings and formed at in a gap between the reflection member and the light source elements; the support body projecting further than the light source elements on a side opposite to the substrate and supporting the optical member.

2. The illumination device according to claim 1 , wherein a height of the reflection member and a height of the light source elements are equal or substantially equal to each other.

3. The illumination device according to claim 1 , wherein the support body is formed in a linear shape so as to be continuously disposed at two or more of the openings in plan view.

4. The illumination device according to claim 1 , wherein the support body is formed at an entirety of the reflection member and an entirety of gaps of the plurality of openings.

5. The illumination device according to claim 4 , wherein the support body is formed at an entirety of the plurality of light source elements.

6. A display comprising the illumination device according to claim 1 .

7. The illumination device according to claim 1 , wherein a height of the reflection member and a height of the light source elements are equal or substantially equal to each other.

8. The illumination device according to claim 1 , wherein the support body is formed in a linear shape so as to be continuously disposed at two or more of the openings in plan view.

9. A display comprising the illumination device according to claim 1 .

10. An illumination device comprising:

a substrate;

a plurality of light source elements disposed adjacent to each other on the substrate;

an optical member disposed to face the light source elements;

a reflection member disposed on the substrate and having a plurality of openings at which the light source elements are disposed; and

a support body formed within each of the plurality of openings and in a gap between the reflection member and the light source elements, the support body projecting further than the light source elements on a side opposite to the substrate and supporting the optical member.

11. An illumination device comprising:

a substrate;

a plurality of light source elements disposed adjacent to each other on the substrate;

an optical member disposed to face the light source elements;

a reflection member disposed on the substrate and having a plurality of openings at which the light source elements are disposed; and

a support body made of transparent resin; the support body formed within the plurality of openings in a gap between the reflection member and the light source elements resulting in a plurality of support bodies within the plurality of openings in the reflection member.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2020
From: KYOUKANE, YOUZOU; MASUDA, TAKESHI; WATANABE, HISASHI; YASUNAGA, HIROTOSHI
To: SHARP KABUSHIKI KAISHA
Reel/Frame 051629/0051 →
Continuity (2)
Provisional Application 62771087 · Nov 24, 2018
Related Publication 20200166803A1 · May 28, 2020