IP Library Granted Patent US 10,914,888
Granted Patent B2
US 10,914,888 · App. 15/482,359 · Granted Feb 9, 2021

Display device and television apparatus

Inventors: Akira Yokawa (Osaka, JP); Yuki Kita (Osaka, JP); Akihiro Fujikawa (Osaka, JP); Yasuyuki Fukumoto (Osaka, JP); Yasuhiro Mori (Osaka, JP); Yuto Suzuki (Osaka, JP); Hirofumi Horiuchi (Osaka, JP); Hirohiko Tsuji (Osaka, JP); Takahito Yamanaka (Osaka, JP); Hideo Yonezawa (Osaka, JP); Akifumi Kono (Osaka, JP)
Assignee: FUNAI ELECTRIC CO., LTD.
G02B6/0088G02B6/0055G02B6/0085G02F1/133308G02F1/133615H04N5/44H04N5/64H04N5/655G02F2001/13332G02F2001/133314G02F2001/133317G02F2001/133328G02F2001/133628
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Quick Facts
Patent No.
US 10,914,888
App. No.
15/482,359
Granted
Feb 9, 2021
Kind
B2
Abstract

A display device comprises a display panel, a light source, an optical member, and a frame. The optical member reflects light from the light source towards the display panel. The frame has a protruding portion that supports the optical member and is disposed near a periphery of the display panel.

Claims (42)

1. A display device comprising:

a display panel;

a light source;

a reflection member having a front surface that reflects light from the light source towards the display panel and a rear surface that faces in an opposite direction relative to the front surface;

a light guide member disposed between the reflection member and the display panel to guide the light reflected by the reflection member toward the display panel; and

a frame having a plurality of protruding parts that directly contacts with the rear surface of the reflection member at a plurality of contacting areas of the rear surface of the reflection member to support the reflection member, respectively, and is disposed near a periphery of the display panel, the contacting areas being spaced away from a periphery of the reflection member, the protruding parts being arranged not to contact with a center area of the reflection member such that the frame is free of contact with the center area of the reflection member, with the center area of the reflection member including a center of the reflection member,

the contacting areas at least partially overlapping with peripheral edges of a display area of the display panel as viewed in a direction perpendicular to a display surface of the display panel, respectively, the contacting areas being spaced away from each other.

2. The display device according to claim 1 , wherein

the protruding parts are independently arranged relative to the peripheral edges, respectively.

3. The display device according to claim 1 , wherein

the protruding parts include a protrusion with a curved end as viewed in the direction perpendicular to the display surface of the display panel.

4. The display device according to claim 1 , wherein

the protruding parts include a plurality of protrusions that is disposed near one of the peripheral edges that extends in a longitudinal direction of the display area.

5. The display device according to claim 1 , wherein

the frame contacts with the light source.

6. The display device according to claim 1 , wherein the protruding parts include a first convex portion that contacts with the optical reflection member near one of the peripheral edges of the display area of the display panel, and a second convex portion that is spaced apart from the first convex portion towards a center of the display area and contacts with the optical reflection member.

7. The display device according to claim 1 , further comprising

a supporting member that is spaced apart from the rear surface of the reflection member by a predetermined distance and is disposed on one side of the reflection member towards which the rear surface is facing.

8. The display device according to claim 7 , wherein

the predetermined distance is equal to or more than 1 mm.

9. The display device according to claim 1 , wherein

the frame includes a heat sink, and

the protruding parts include first and second convex portions of the heat sink, the first convex portion contacting with the reflection member near one of the peripheral edges of the display area of the display panel, and the second convex portion being spaced apart from the first convex portion towards a center of the display area and contacting with the reflection member.

10. The display device according to claim 9 , wherein

the frame further includes a reflection member holder, and

the protruding parts include a plurality of protrusions of the reflection member holder, the protrusions contacting with the reflection member and bulging towards the reflection member.

11. The display device according to claim 10 , wherein

the reflection member holder is independently formed as a separate member from the heat sink.

12. The display device according to claim 9 , wherein

the light source is attached to the heat sink, and

the light source includes a plurality of light emitting devices that is arranged along one of the peripheral edges of the display area of the display panel along which the heat sink is arranged.

13. The display device according to claim 9 , wherein

the heat sink is arranged along one of the peripheral edges of the display area of the display panel that extends in a first direction, and

the protruding parts include a protrusion that contacts with the reflection member and is arranged along an adjacent peripheral edge of the display area that is adjacent to the one of the peripheral edge and extends in a second direction that is perpendicular to the first direction.

14. The display device according to claim 13 , wherein

the first convex portion and the second convex portion extends parallel to the first direction.

15. The display device according to claim 13 , wherein

the first convex portion and the second convex portion are spaced apart from each other in the second direction by a distance that is larger than a width of the protruding part in the first direction.

16. The display device according to claim 13 , wherein

the first convex portion and the second convex portion has widths in the second direction that are smaller than a width of the protruding part in the first direction.

17. The display device according to claim 1 , wherein

each of the protruding parts has a shape that is longer in a direction parallel to corresponding one of the peripheral edges of the display area of the display panel than in a direction perpendicular to the corresponding one of the peripheral edges of the display area of the display panel and parallel to the display surface of the display panel.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2023
From: FUNAI ELECTRIC CO., LTD.
To: MAXELL, LTD.
Reel/Frame 065264/0953 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2023
From: FUNAI ELECTRIC HOLDINGS CO., LTD.
To: FUNAI ELECTRIC CO., LTD.
Reel/Frame 064093/0487 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NATURE OF CONVEYANCE PREVIOUSLY RECORDED AT REEL: 063815 FRAME: 0716. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Jun 2, 2023
From: FUNAI ELECTRIC CO., LTD.
To: FUNAI ELECTRIC HOLDINGS CO., LTD.
Reel/Frame 063843/0907 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 31, 2023
From: FUNAI ELECTRIC CO., LTD.
To: FUNAI ELECTRIC HOLDINGS CO., LTD.
Reel/Frame 063815/0716 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 7, 2017
From: YOKAWA, AKIRA; KITA, YUKI; FUJIKAWA, AKIHIRO; FUKUMOTO, YASUYUKI; MORI, YASUHIRO; SUZUKI, YUTO; HORIUCHI, HIROFUMI; TSUJI, HIROHIKO; YAMANAKA, TAKAHITO; YONEZAWA, HIDEO; KONO, AKIFUMI
To: FUNAI ELECTRIC CO., LTD.
Reel/Frame 041933/0365 →
Priority Claims (2)
JP 2011-233763 · Oct 25, 2011 · national
JP 2011-234180 · Oct 25, 2011 · national
Continuity (2)
Continuation 13646445 · Oct 5, 2012
Related Publication 20170212302A1 · Jul 27, 2017