Liquid crystal display device

• US 20020047953A1
• Filed: 08/31/2001
• Published: 04/25/2002
• Est. Priority Date: 10/02/2000
• Status: Active Grant

• Current Assignee: Endo Atsushi
• Original Assignee: Endo Atsushi
• Inventors: Endo, Atsushi
• Granted Patent: US 6,665,038 B2
• Time in Patent Office: Days
• US Class Current: 349/58
• CPC Class Codes: G02B 6/0021 for housing at least a part of the light source, e.g. by forming holes or recesses
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/009 of the light source in the package G02B6/0021 takes precedence
• CPC Class Codes: G02B 6/0091 of the light source relative to the light guide G02B6/0021 takes precedence
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/133615 Edge-illuminating devices, i.e. illuminating from the side

Abstract

A liquid crystal display device is provided, which is applicable to either a back light type or a front light type. For the back light type, a flexible board, a first joint body of a back light transmission plate and a rod-like light transmission body, and a liquid crystal panel are successively piled up from bottom, and a LED is positioned facing to the rod-like light transmission body by bending a spur. For the front light type, a flexible board, a liquid crystal panel, and a second joint body of a front light transmission plate and a rod-like light transmission body, having the same shape as the first joint body, are successively piled up from bottom, and a LED is positioned facing to the rod-like light transmission body by bending a spur.

Claims

1. A liquid crystal display device, comprising:

a liquid crystal panel that displays a screen by changing the intensity of a transmitted light, which takes place when a molecular sequence of a liquid crystal injected between two glass plates is changed by an applied voltage;

a back light transmission plate or a front light transmission plate that transmits a light which illuminates the liquid crystal panel;

a board that applies voltage to the liquid crystal panel and has various wiring;

a spur that projects from the board as a single unit and has various wiring; and

a luminous body that is connected to a fitting wire on the spur,

wherein a unit made by piling up a board, a back light transmission plate, and a liquid crystal panel successively from bottom or a unit made by piling a board, a liquid crystal panel, and a front light transmission plate successively from bottom is assembled and then the spur is bent and maintained at a position where a light is transmitted from the luminous body to the back light transmission plate or the front light transmission plate.

2. A liquid crystal display device as claimed in claim 1, further comprising an assisted light transmission body connected to the back light transmission plate or the front light transmission plate to transmit a light, wherein a light is transmitted from the luminous body to the assisted light transmission body by bending and maintaining the spur at a position where the assisted light transmission body and the luminous body are facing each other.

3. A liquid crystal display device as claimed in claim 1, wherein the board is a laminated body having a film-like substrate and a conductor to form wiring, and the spur is molded together with the board as one body.

4. A liquid crystal display device as claimed in claim 1, wherein the board and the spur are soldered together to be one body.

5. A liquid crystal display device as claimed in claim 1, wherein each unit is built in a device box which has the same planer dimension and thickness.