JP2002196693A - Flat display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat display device in which a display cell can be definitely fixed to the designed referential position of a frame. SOLUTION: Pressing parts 30 to press the liquid crystal display cell 16 to the inside of the frame 12 are formed on each of two adjoining sidewalls of the frame 12. The corner 25 of the frame 12 opposing to the above two sidewalls is used as the receiving part for positioning the liquid crystal display cell 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display cell mounting structure for a flat panel display device.

[0002]

2. Description of the Related Art A liquid crystal display device has a box-shaped frame made of synthetic resin.
A backlight was housed, and a liquid crystal display cell was housed thereon.

In the assembly work of this liquid crystal display device, in order to reduce the dimensional tolerance of the members and the variation in assembly, conventionally, an operator himself attaches a liquid crystal display cell to a design reference point, and the liquid crystal display cell is placed at that position. The cell was fixed with double-sided adhesive tape so that it would not move.

[0004] However, with this assembling method, there is a problem that the applied portion is displaced or fixed due to a work variation or a work error of an operator.

Accordingly, the present invention has been made in view of the above problems, and has as its object to provide a flat display device capable of securely fixing a display cell to a design reference point of a frame.

[0006]

According to a first aspect of the present invention, in a flat display device in which display cells are housed in a frame having an open upper surface, a pressing portion for pressing the display cells inward of the frame is provided. A flat panel display device provided on each of two adjacent side walls, and a corner of the frame facing a corner where these two side walls intersect is a positioning receiving portion of the display cell.

The invention according to claim 2 is the flat display device according to claim 1, wherein a backlight is housed inside the frame and below the display cell.

According to a third aspect of the present invention, the pressing portion is provided with a notch in one side wall of the frame, an elastic bridging portion is provided between the notches, and the pressing portion protrudes toward the inside of the frame. The flat display device according to claim 1, further comprising a unit.

According to a fourth aspect of the present invention, TCP is provided on each of two adjacent sides of the display cell, and the pressing portion presses two sides opposite to the two sides on which the TCP is provided. The flat display device according to claim 1, wherein:

According to the present invention, when the display cells are housed in the frame, the display cells are pressed by the positioning receiving portions by the pressing portions provided on two adjacent sides of the frame, and are fixed at the design reference position. You.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a liquid crystal display device 10 according to one embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a perspective view of a liquid crystal display device 10 according to this embodiment.

As shown in FIG. 1, a backlight 14 is first accommodated in a box-shaped frame 12 made of synthetic resin and having an open upper surface, and a liquid crystal display cell 16 is accommodated thereon.

The backlight 14 has a structure in which a straight tube lamp is arranged on the side of the light guide plate, and a plurality of optical sheets are laminated on the light guide plate.

The liquid crystal display cell 16 has liquid crystal sealed between an array substrate and a counter substrate. Then, one side of the long side of the liquid crystal display cell 16 (hereinafter, referred to as a first side).
Has a TC for transmitting an image signal to the liquid crystal display cell 16.
P18 is provided. Further, a Y-side TCP 20 for outputting a gate signal is provided on one short side (hereinafter, referred to as a second side) adjacent to the first side.

The structure of the frame 12 will be described below.

The frame 12 has a box shape as described above, and includes four side walls and a bottom surface. Among them, a side wall (hereinafter, referred to as a first side wall) 22 corresponding to a first side on which the X-side TCP 18 of the liquid crystal display cell 16 is disposed.
Is formed lower than the other side walls so that the X-side TCP 18 can be folded back on the lower surface of the frame 12. Similarly, a side wall (hereinafter, referred to as a second side wall) 24 of the frame 12 facing the second side to which the Y-side TCP 20 is attached is formed to have a low height. The corner where the first side wall 22 and the second side wall 24 intersect is set to a normal height.

A third side wall 26 facing the first side wall 22,
The fourth side wall 28 facing the second side wall 24 is provided with two pressing portions 30 for pressing the liquid crystal display cell 16 against the corners 25, respectively.

The detailed structure of the pressing portion 30 will be described by taking the pressing portion 30 provided on the third side wall 26 as an example.
This will be described with reference to FIGS.

The third side wall 26 is provided with a flat rectangular notch 32, and an elastic bridging portion 33 is formed on the inside of the notch 32 inside the third side wall 26, and at the center of the bridging portion 33. A projection 34 is provided toward the inside of the frame 12.

When the projection 34 is pressed toward the outside of the frame 12, the frame 34
It is structured to move to the outside.

The liquid crystal display cell 1 is mounted on the frame 12 having the above structure.
6 will be described.

The projection 34 of the pressing portion 30 is retracted from the storage portion 36 by a finger or a driver, and
Is stored in the storage portion 36. Then, the four pressing portions 30
Of the erection portion 33 toward the inside of the frame 12.
The liquid crystal display cell 16 is pressed by the urging force of
5 is pressed. In this case, if the corner 25 is set at the designed positioning position of the liquid crystal display cell 16, the liquid crystal display cell 16 is always pressed and fixed to the corner 25, so that there is a dimensional tolerance of the members and a variation in assembly. Does not occur, and there is no variation by the operator in the work. Further, there is no need to use a double-sided adhesive tape to fix the liquid crystal display cell 16 as in the prior art.

FIG. 5 shows a modification of the pressing portion 30.

That is, when the liquid crystal display cell 16 is stored in the storage portion 36 by providing the slope 38 on the tip end side of the protrusion 34, the corner of the liquid crystal display cell 16 is stored against the slope 38. Accordingly, the liquid crystal display cell 16 can be easily stored in the storage portion 36.

[0026]

As described above, according to the flat display device of the present invention, the display cell is fixed to the positioning receiving portion of the frame by the pressing portion. A display cell can be fixed at a position.

[Brief description of the drawings]

FIG. 1 is a perspective view of a liquid crystal display device according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a pressing unit.

FIG. 3 is a plan view of a pressing portion in a state where no liquid crystal display cell is attached.

FIG. 4 is a plan view of a pressing portion with a liquid crystal display cell attached.

FIG. 5 is a perspective view of a modification of the pressing portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Liquid crystal display device 12 Frame 14 Backlight 16 Liquid crystal display cell 18 X side TCP 20 Y side TCP 22 1st side wall 24 2nd side wall 25 Corner part 26 3rd side wall 28 4th side wall 30 Press part 32 Notch 33 Bridge part 34 Projection 36 Storage section 38 Slope

Claims (4)

[Claims] 1. A flat panel display device in which display cells are housed in a frame having an open top surface, wherein pressing portions for pressing the display cells to the inside of the frame are provided on two adjacent side walls of the frame, respectively. A flat display device, wherein a corner of the frame facing a corner where two side walls intersect is used as a positioning receiving portion of the display cell. 2. The flat display device according to claim 1, wherein a backlight is housed inside the frame and below the display cell. 3. The pressing portion has a notch provided in one side wall of the frame, an elastic bridging portion is provided between the notches, and a projection is provided from the bridging portion toward the inside of the frame. The flat panel display according to claim 1, wherein 4. A display device according to claim 1, further comprising:
2. The flat display device according to claim 1, wherein the pressing unit presses two sides facing the two sides on which the TCP is provided. 3.