Display unit

• US 20070103617A1
• Filed: 12/21/2006
• Published: 05/10/2007
• Est. Priority Date: 10/15/2003
• Status: Abandoned Application

• Current Assignee: Citizen Holdings Co., Ltd.
• Original Assignee: Citizen Holdings Co., Ltd.
• Inventors: Kato, Yuichi, Hasumi, Yuichi, Kitajima, Yasuo
• Application Number:
  US11/642,909
• Publication Number:
  US 20070103617A1
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02B 6/0028 Light guide, e.g. taper
• CPC Class Codes: G02B 6/0073 Light emitting diode [LED]
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133317 Intermediate frames, e.g. between backlight housing and front frame
• CPC Class Codes: G02F 1/133334 Electromagnetic shields
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side
• CPC Class Codes: G04G 17/02 Component assemblies
• CPC Class Codes: G04G 9/0041 Illumination devices

Abstract

A shield member that shields both of or one of an electricity and a magnetism is provided between a circuit board and a display panel arranged to be superposed on the circuit board. A holding portion that holds a lighting device is formed on one side of that shield member. The lighting device stored in this holding portion is positioned relative to a side surface of the display panel.

Claims

1-7. -7. (canceled)

8. A display unit comprising:

a circuit board;

a liquid crystal display panel arranged to be superposed on said circuit board;

a lighting device that is arranged to face one side surface of said liquid crystal display panel, and that causes a light to be incident on the side surface of said liquid crystal display panel; and

a single shield member that is arranged between said circuit board and said liquid crystal display panel, and that shields both of or one of an electricity and a magnetism, wherein

said shield member supports both said liquid crystal display panel and said lighting device.

9. The display unit according to claim 8, wherein

said shield member comprises:

a flat portion that supports said liquid crystal display panel; and

a holding portion that is formed by bending one side edge of the flat portion, and that supports said lighting device.

10. The display unit according to claim 9, wherein

said lighting device comprises:

a linear light guide member; and

a point light source arranged on one end surface of the light guide member, and wherein

at least the linear light guide member is arranged in said holding portion of the shield member.

11. The display unit according to claim 10, wherein

said holding portion of said shield member comprises a first stopper that is formed on one end of said holding portion in a length direction, and that abuts on one end of said light guide member to restrict the light guide member from protruding out of the holding portion.

12. The display unit according to claim 11, wherein

said holding portion of said shield member comprises:

a first stopper that is formed on one end of said holding portion in a length direction, and that abuts on one end of said light guide member to restrict the light guide member from protruding out of the holding portion; and

a fixing piece that is formed on the other end of said holding portion in the length direction, and that fixes said point light source.

13. The display unit according to claim 8, wherein

one or a plurality of contact surfaces are formed on one side of said circuit board, and one or a plurality of contact pieces are formed on one side of said shield member to correspond to the one or the plurality of contact surfaces, respectively.

14. The display unit according to claim 8, wherein

a flexible printed circuit is connected to one side of said liquid crystal display panel, and a display panel driving circuit provided on the flexible printed circuit is arranged on a surface of the liquid crystal display panel which faces said circuit board, and

an opening is formed in a region of said shield member which region does not face said display panel driving circuit, and said circuit board is connected to said liquid crystal display panel by the flexible printed circuit through the opening.

15. The display unit according to claim 8, wherein

said circuit board comprises a reception circuit that receives a radio wave, and circuit patterns are formed on left and right side portions of the circuit board so as to be connected to antenna ends, respectively.

16. The display unit according to claim 15, wherein

said circuit board comprises:

a central portion on which said liquid crystal display panel is arranged to be superposed; and

flange portions protruding left and right of the central portion, respectively, and wherein

said circuit patterns are formed on the flange portions, respectively.

17. The display unit according to claim 8, further comprising:

a holding frame that holds a secondary battery and a secondary coil used to charge the secondary battery, wherein

the secondary battery and the secondary coil are held by said holding frame at positions at which the secondary battery and the secondary coil are not superposed two-dimensionally.

18. The display unit according to claim 17, wherein

said holding frame is composed by a generally rectangular main body portion, and an attachment base protruding outward of a side of the main body portion,

said secondary battery is fitted into a recess formed in said main body portion, and said secondary coil is attached to said attachment base.

19. A display unit comprising:

a circuit board;

a liquid crystal display panel arranged to be superposed on said circuit board;

a lighting device arranged to face one side surface of said liquid crystal display panel, and causing a light to be incident on the side surface of said liquid crystal display panel;

a shield member that is arranged between said circuit board and said liquid crystal display panel, and that shields both of or one of an electricity and a magnetism; and

an upper fixing frame and a lower fixing frame for putting said circuit board, said shield member and said liquid crystal display panel between the upper fixing frame and the lower fixing frame, wherein

said shield member comprises;

a flat portion that supports said liquid crystal display panel; and

a holding portion that is formed by bending one side edge of the flat portion, and that supports said lighting device, and wherein

a first stopper that abuts on one end of said light guide member to restrict the light guide member from protruding out of the holding portion is formed on one end of said holding portion of the shield member in a length direction of the holding portion, and

a second stopper that restricts said light guide member from protruding out of the holding portion from a side opposite the side on which the first stopper of said holding portion is formed, is formed on said upper fixing frame.

20. The display unit according to claim 19, wherein

a plurality of spring hooks are formed on said upper fixing frame, and a plurality of engagement protrusions engaged with said hooks are formed on said lower fixing frame.