IP Library Granted Patent US 7,471,353
Granted Patent B2
US 7,471,353 · App. 11/580,010 · Granted Dec 30, 2008

Liquid crystal display device

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Quick Facts
Patent No.
US 7,471,353
App. No.
11/580,010
Filed
Oct 13, 2006
Granted
Dec 30, 2008
Kind
B2
Examiner
PAK, SUNG H
Art Unit
2874
USPC
349/58
Abstract

A liquid crystal display device that includes: a liquid crystal display panel; a backlight unit disposed on the rear surface side of the liquid crystal display panel; and a flexible printed circuit whose end is connected to a terminal portion of the liquid crystal display panel. In the device, the backlight unit includes a frame-shaped mold, the liquid crystal display device includes at least a fixing member for use for fixing the liquid crystal display panel to the frame-shaped mold in an area not including a display area of the liquid crystal display panel, and the fixing member is shaped like a ring, and inside of the ring of the fixing member, the liquid crystal display panel and the frame-shaped mold are disposed. The resulting liquid crystal display device can implement size and profile reduction with ease.

Claims (49)

1. A liquid crystal display device, comprising:

a liquid crystal display panel;

a backlight unit disposed on a rear surface side of the liquid crystal display panel; and

a flexible printed circuit whose an end is connected to a terminal portion of the liquid crystal display panel, wherein

the backlight unit includes a frame-shaped mold,

the liquid crystal display device includes at least a fixing member for use for fixing the liquid crystal display panel to the frame-shaped mold in an area not including a display area of the liquid crystal display panel, and

the fixing member is shaped like a ring, and inside of the ring of the fixing member, the liquid crystal display panel and the frame-shaped mold are disposed.

2. The liquid crystal display device according to claim 1 , wherein

the flexible printed circuit is bent outside of a frame of the frame-shaped mold, and is partially disposed on a rear surface side of the frame-shaped mold,

the flexible printed circuit is disposed in the ring of the fixing member, and

the fixing member fixes, to the rear surface side of the frame-shaped mold, a bent portion of the flexible printed circuit disposed on the rear surface side of the frame-shaped mold.

3. The liquid crystal display device according to claim 1 , wherein

the fixing member is at least provided to two of the area not including the display area of the liquid crystal display panel.

4. The liquid crystal display device according to claim 1 , wherein

the frame-shaped mold is formed with a notch on a side wall on one longer side,

the fixing member is disposed across the notch, and

with a clamping force of the fixing member, the notch is deformed, and the liquid crystal display panel is positioned on another side wall on the other longer side of the frame-shaped mold.

5. The liquid crystal display device according to claim 1 , wherein

the frame-shaped mold is formed with a notch on a side wall on one shorter side,

the fixing member is disposed across the notch, and

with a clamping force of the fixing member, the notch is deformed, and the liquid crystal display panel is positioned on another side wall on the other shorter side of the frame-shaped mold.

6. The liquid crystal display device according to claim 1 , wherein

the frame-shaped mold is formed with a notch on a side wall of one longer side, and on a side wall of one shorter side,

the fixing member includes a longer-side fixing member and a shorter-side fixing member,

the longer-side fixing member is disposed across the notch formed on the side wall of the one longer side of the frame-shaped mold,

the shorter-side fixing member is disposed across the notch formed on the side wall of the one shorter side of the frame-shaped mold, and

with a clamping force of the longer- and shorter-side fixing members, the notches formed on the side walls of the frame-shaped mold are deformed, and the liquid crystal display panel is positioned at a corner portion of the frame-shaped mold.

7. The liquid crystal display device according to claim 6 , wherein

the longer-side fixing member is provided at least two portions in the area not including the display area of the liquid crystal display panel, including an upper-side area and a lower-side area than the display area.

8. The liquid crystal display device according to claim 1 , wherein

the liquid crystal display panel is provided with a conductive layer on a surface on a viewer side,

the fixing member is conductive, and

the fixing member is made to come in contact with the conductive layer of the liquid crystal display panel.

9. The liquid crystal display device according to claim 8 , wherein

the fixing member is made to come in contact with a predetermined terminal of the flexible printed circuit.

10. The liquid crystal display device according to claim 1 , wherein

the liquid crystal display panel is provided with a semiconductor chip,

the fixing member is light tight, and

the fixing member is disposed to cover the semiconductor chip.

11. The liquid crystal display device according to claim 1 , wherein

the fixing member is a ring-shaped elastic body.

12. The liquid crystal display device according to claim 1 , wherein

the fixing member is a band-shaped clamping member.

13. The liquid crystal display device according to claim 1 , wherein

the frame-shaped mold is formed with a concave portion for use for positioning the fixing member.

14. The liquid crystal display device according to claim 13 , wherein

the concave portion for use for positioning the fixing member is formed on a side surface of the frame-shaped mold.

15. The liquid crystal display device according to claim 13 , wherein

the concave portion for use for positioning the fixing member is formed on a rear surface of the frame-shaped mold.

Assignments (8)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 10, 2025
From: JAPAN DISPLAY INC
To: MAGNOLIA PURPLE CORPORATION
Reel/Frame 071890/0202 →
CHANGE OF NAME Recorded Nov 17, 2023
From: HITACHI DISPLAYS, LTD.
To: JAPAN DISPLAY EAST, INC.
Reel/Frame 065614/0223 →
CHANGE OF NAME Recorded Nov 17, 2023
From: JAPAN DISPLAY EAST, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 065614/0644 →
CHANGE OF ADDRESS Recorded Nov 17, 2023
From: JAPAN DISPLAY, INC.
To: JAPAN DISPLAY, INC.
Reel/Frame 065654/0250 →
NUNC PRO TUNC ASSIGNMENT Recorded Nov 17, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 065615/0327 →
MERGER Recorded Oct 14, 2011
From: IPS ALPHA SUPPORT CO., LTD.
To: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
Reel/Frame 027063/0139 →
COMPANY SPLIT PLAN TRANSFERRING FIFTY (50) PERCENT SHARE OF PATENTS Recorded Oct 14, 2011
From: HITACHI DISPLAYS, LTD.
To: IPS ALPHA SUPPORT CO., LTD.
Reel/Frame 027063/0019 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2006
From: OOHIRA, EIJI
To: HITACHI DISPLAYS, LTD.
Reel/Frame 018415/0808 →