JPH0580334A - Back light holding structure of liquid crystal display device - Google Patents

Abstract

PURPOSE:To cope with a decrease in the thickness of the liquid crystal display device by engagement pieces separately formed on a frame with plural engagement parts provided on the reflecting-surface side edge part of a back light. CONSTITUTION:The engagement parts 11 are arranged at the reflecting-surface side edge part of a back light unit 1. The number of the engagement parts 11 is determined according to the size of the liquid crystal display device, and when normally about four engagement parts are arranged at the side edge part on one side, there is no problem in practical use. Those engagement parts 11 may optionally be disposed symmetrically between the right and left side edge parts or zigzag. Then the engagement pieces 31 to engage the engagement parts 11 are formed on the frame 3 opposite the engagement parts 11 by as many as the engagement parts. The engagement pieces 31 are folded toward the engagement parts 11 to position and fix the back light unit 1 to the frame 3, and the thickness is reducible as compared with a conventional screw fixing method.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlight holding structure for a liquid crystal display device.

[0002]

2. Description of the Related Art Conventionally, in order to fix a backlight of a liquid crystal display device to a frame, a method of fixing the backlight to the frame as shown in FIG. 4 or a method of fixing with a double-sided tape has been adopted. There is. However, as a recent trend, further thinning of the liquid crystal display device is desired. In the figure, 101 is a backlight unit, 102 is a liquid crystal drive module, 103 is a nut,
104 is a bolt and 105 is a frame.

By the way, in the method of fixing with a screw, the screw protrudes from the back surface of the backlight, and the thickness of the liquid crystal display device is increased accordingly. Further, the method of fixing using a double-sided tape does not increase the thickness, but there is a problem in strength and reliability in fixing.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a backlight holding method capable of coping with the trend of thinning of a liquid crystal display device with a backlight. And

[0005]

A backlight holding structure for a liquid crystal display device according to the present invention engages with a plurality of locking portions arranged at an edge portion of the backlight on the reflecting surface side. It is characterized by comprising a frame member having an engaging piece.

[0006]

In the present invention, the backlight is fixed to the frame by providing a plurality of engaging portions on the side edge of the reflecting surface of the backlight and engaging the engaging pieces provided on the frame with the engaging portions. Therefore, the thickness of the entire liquid crystal display device can be reduced.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

FIG. 1 is an exploded perspective view of an embodiment of the present invention, and FIG. 2 is an explanatory view of a fixing method of the present invention. In the figure, 1
Is a backlight unit, 2 is a liquid crystal drive module, 3
Indicates a frame.

As shown in FIGS. 1 and 2, a plurality of locking portions 11 are provided at the edge of the backlight unit 1 on the side of the reflecting surface. The number of locking portions 11 to be provided is appropriately determined according to the size of the liquid crystal display device, but normally if about four locations are provided on one side edge, there is no practical problem. In the example shown in FIG. 1, the locking portions 11 are symmetrically arranged, but the locking portions 11 do not necessarily have to be symmetrically arranged, and an arbitrary arrangement such as a staggered arrangement can be adopted.

The frame 3 is formed with an engagement piece 31 that engages with the locking portion 11. As a matter of course, the required number of the engaging pieces 31 are provided at the positions corresponding to the locking portions 11. This engaging piece 31 is bent toward the locking portion 11 side as shown in FIG.
Is positioned and fixed.

Since the liquid crystal drive module 2 is the same as the conventional one, a detailed description of its configuration will be omitted.

FIG. 3 is a schematic view of a backlight unit according to another embodiment of the present invention. In this embodiment, the locking portion 11 is linearly formed. Also in this embodiment, as in the embodiment shown in FIG.
The whole bait unit 1 is fixed by bending. The backlight unit 1 is positioned by fixing the backlight unit 1 in accordance with the inner frame size of the frame 3 of the backlight unit 1. According to this embodiment, the processing of the locking portion 11 becomes easy, and further cost reduction can be achieved.

[0013]

As described above, according to the present invention, it is possible to sufficiently cope with the tendency of thinning the liquid crystal display device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a fixing method of the present invention.

FIG. 3 is a schematic view of a backlight unit according to another embodiment of the present invention.

FIG. 4 is a schematic view of an example of a conventional method of fixing a backlight unit.

[Explanation of symbols]

 1 Backlight unit 2 Liquid crystal drive module 3 Frame

Claims (1)

[Claims] 1. A liquid crystal display, comprising: a plurality of locking portions arranged at an edge portion of the backlight on the reflecting surface side; and a frame member having an engaging piece that engages with the locking portions. Backlight holding structure of the device.