IP Library Granted Patent US 11,415,869
Granted Patent B2
US 11,415,869 · App. 17/058,053 · Granted Aug 16, 2022

Electronic device and projectors

Inventor: Ryosuke Kawase (Tokyo, JP)
Assignee: SHARP NEC DISPLAY SOLUTIONS, LTD.
G03B21/16G02F1/1313G02F1/133385
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Quick Facts
Patent No.
US 11,415,869
App. No.
17/058,053
Granted
Aug 16, 2022
Kind
B2
Abstract

An electronic device includes blowers. Blowers cool liquid crystal panels for light modulation mounted on illumination optical system for outputting light to a projection lens, respectively, and are disposed on the opposite side to the side where the projection lens of three liquid crystal panels is disposed and are arranged side by side along a first direction facing two liquid crystal panels of three liquid crystal panels.

Claims (34)

1. An electronic device, comprising:

a plurality blowers, each of which has an air inlet for sucking air for blowing cooling air from the outside, wherein

the plurality of blowers cool each of three liquid crystal panels, mounted on an illumination optical system for outputting light to a projection lens for light modulation, and are disposed on a side opposite to a side where the projection lens of the three liquid crystal panels is disposed and are arranged side by side along a first direction facing the two liquid crystal panels of the three liquid crystal panels and are arranged such that a direction of the air inlets are in the first direction, and

a number of the blowers is three or more.

2. The electronic device according to claim 1 , wherein

a height of the air outlet of the plurality of blowers are the same each other.

3. The electronic device according to claim 1 , wherein

among the plurality of blowers, a distance from the air outlet of the blower that for cooling the liquid crystal panel other than the two liquid crystal panels facing each other of the three liquid crystal panels to the liquid crystal panel to be cooled by the blower is shorter than a distance from the air outlet of the other blower to the liquid crystal panel to be cooled respectively.

4. The electronic device according to claim 1 , wherein

a position of the air outlet of the plurality of blowers in a direction perpendicular to the first direction are the same each other.

5. The electronic device according to claim 1 , wherein

each of the plurality of the blowers comprises blower fans.

6. The electronic device according to claim 1 , wherein

the plurality of blowers are disposed at intervals at which a predetermined intake amount can be ensured.

7. A projector, comprising:

an electronic device according to claim 1 ,

the projection lens; and

a light source, wherein

the electronic device receives light from the light source and modulates an incident light.

8. An electronic device, comprising:

a plurality of blowers, each of which has an air inlet for sucking air for blowing cooling air from the outside, wherein

the plurality of blowers cool each of three liquid crystal panels, mounted on an illumination optical system for outputting light to a projection lens for light modulation, and are disposed on the side opposite to the side where the projection lens of the three liquid crystal panels is disposed and are arranged side by side along a first direction facing the two liquid crystal panels of the three liquid crystal panels and are arranged such that the direction of the air inlets are the same as each other with respect to the first direction.

9. The electronic device according to claim 8 , wherein

a height of the air outlet of the plurality of blowers are the same each other.

10. The electronic device according to claim 8 , wherein

among the plurality of blowers, a distance from the air outlet of the blower that for cooling the liquid crystal panel other than the two liquid crystal panels facing each other of the three liquid crystal panels to the liquid crystal panel to be cooled by the blower is shorter than a distance from the air outlet of the other blower to the liquid crystal panel to be cooled respectively.

11. The electronic device according to claim 8 , wherein

a position of the air outlet of the plurality of blowers in a direction perpendicular to the first direction are the same each other.

12. The electronic device according to claim 8 , wherein

each of the plurality of the blowers comprises blower fans.

13. The electronic device according to claim 8 , wherein

the plurality of blowers are disposed at intervals at which a predetermined intake amount can be ensured.

14. The electronic device according to claim 8 , wherein

a number of the blower is three, each of the three blowers cools each of the three liquid crystal panels.

Assignments (2)
MERGER Recorded Jun 26, 2026
From: SHARP NEC DISPLAY SOLUTIONS, LTD.
To: SHARP KABUSHIKI KAISHA
Reel/Frame 075830/0159 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 19, 2021
From: KAWASE, RYOSUKE
To: SHARP NEC DISPLAY SOLUTIONS, LTD.
Reel/Frame 054951/0942 →
Continuity (1)
Related Publication 20210157220A1 · May 27, 2021