JPH0725779Y2 - Liquid crystal display holding structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a holding structure for holding parts constituting a liquid crystal display device such as a portable television.

[Conventional technology]

Conventionally, as a holding structure of a pocket liquid crystal television, a method of fixing a built-in component with a screw to either one of an upper frame and a lower frame which form a housing has been used. For example, an image display block containing a liquid crystal panel is fixed to the upper frame with a few screws, then a circuit block on which a tuner, etc. is mounted is fixed to a post provided on the upper frame with a screw, and the lower frame After assembling, the TV was assembled and completed using a large number of screws, such as fixing the housing with a few screws.

[Problems to be solved by the invention]

However, in consideration of the demand for small and thin portable pocket TVs, it has become difficult to secure a space for fixing each built-in component with a different screw. However, if a method of simply fixing some parts together with screws is used, there is a risk that tolerance interference may occur due to variations in each part and the parts may be damaged. In addition, although the space could be secured, there were many cases in which the number of thread engagement ridges could not be obtained, and the upper frame was often defective only by slightly tightening the screws. In addition, as the weight of TVs has become lighter, the glass of the liquid crystal panel, which is the image display member, has come to be thin, so that a strong impact may cause the glass to crack or break. A structure that is as shockproof as possible was desired.

It is an object of the present invention to propose a holding structure for realizing a liquid crystal display device which has a small size and a thin set size to improve portability, has improved impact resistance, and is more commercialized. It is an object.

[Means for solving problems]

In order to achieve the above object, the structure of the present invention is such that an image display block accommodating at least a liquid crystal panel, an illumination block including a fluorescent tube and a reflection plate, and an accommodation and holding of the image display block and the illumination block. In a liquid crystal display device having a housing for operating the image display block, a reflection plate having an elastic portion is provided on the back surface of the image display block, and the image display block is sandwiched by the reflection plate by elastic pressure contact. Is characterized by.

[Action]

That is, the holding structure of the liquid crystal display device according to the present invention does not require a screw for fixing the image display block because the illumination block having the elastic member presses and holds the image display block in the housing. Since it is elastically held, it has the effect of weakening the impact force on the liquid crystal panel housed in the image display block.

[Example of device]

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view of an embodiment showing a holding structure of an image display device according to the present invention, and FIG. 2 is a perspective view of the reflector shown in FIG. Further, FIG. 3 is a perspective view of a reflecting plate showing another embodiment.

First, a description will be given with reference to FIG.

Reference numerals 1 and 2 are an upper frame and a lower frame that form the housing.
An image display block 3 houses a liquid crystal panel 4 for image display. Reference numeral 5 denotes an illumination block, which includes a fluorescent tube 6 for backlight of the liquid crystal panel 4, a reflection plate 7 for condensing light from the fluorescent tube 6 on a display unit of the liquid crystal panel 4, and the fluorescent tube. 6 and a substrate 8 on which the reflector 7 is mounted. The position of the image display block 3 in the plane direction is regulated by the positioning post 1a provided on the upper frame 1. The reflector 7 is made of a member (for example, SK, SUS material, resin material, etc.) in an elastic shape.
A supporting portion 7b provided on the inelastic portion 7a regulates the height in the cross-sectional direction and is fixed to the substrate 8 by soldering. The illumination block 5, which is arranged on the back surface of the image display block 3 so that the reflection plate 7 is in contact therewith, is positioned by the column 1b provided on the upper frame 1 and the lower frame fixing screw is inserted through the lower frame 2. Held by 9. Further, the height of the receiving illumination block 5 is regulated by the support post 2a provided on the lower frame 2 on the back surface of the reflection plate 7 mounted on the illumination block 5, and the elastic force of the reflection plate 7 causes the image display block 3 to move. Is pressed against the upper frame 1.

FIG. 2 is a perspective view of the reflection plate 7. The bent portion is an elastic portion 7c, and when a force is applied to the image display block 3 from above, the elastic portion 7c escapes to the left and right in the drawing. It has a shape.

FIG. 3 shows another embodiment of the reflector, in which the reflector 100 itself is made of resin. An elongated hole 100a is provided on the upper side surface near the substantially center of the box body having a curved bottom so that the elastic effect of the elastic portion 100b is produced. Several elastic portions 100b, which are the receiving surface of the image display block 3, are formed. The notch 100c is an escape groove for disposing the fluorescent tube.

In FIG. 3, the elastic portion 100b is formed by forming the elongated hole 100a, but as another embodiment, the elongated hole 100a is closed to prevent the light of the fluorescent tube from leaking from the elongated hole 100a in FIG. A flange-shaped protrusion is provided on the side surface of the outer wall of the open end of the reflection plate 100 that is in contact with the image display block 3, and a protrusion is formed on the flange-shaped protrusion toward the image display unit, and an elastic portion is formed on the reflection plate. You may arrange.

[Effect of device]

As described above, according to the present invention, since the structure is such that the image display block is pressed and held in the housing, there is a space for fixing the image display block with screws (generally, an area of about 5 mm diameter is required for one place). ) Is unnecessary, the flat space can be effectively used and contributes to downsizing.
It is also effective in reducing the thickness without worrying about the number of threaded threads for fixing the image display block.

And with the elimination of screws, the assembly workability is also significantly improved. Further, since the image display block accommodating the liquid crystal panel is elastically held, the liquid crystal panel is not damaged even against a strong impact, the impact resistance is improved, and the effect is extremely high. Furthermore, when the material of the reflecting plate is replaced with an elastic material having a high magnetic shielding property, the effect of preventing noise generated from the fluorescent tube is also obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing a holding structure of an image display device of the present invention, FIG. 2 is a perspective view of the reflector of FIG. 1, and FIG. 3 is a perspective view of a reflector of another embodiment. 1, 2 ... Housing, 3 ... Image display block, 4 ...
… Liquid crystal panel, 5 …… Illumination block, 6 …… Fluorescent tube,
7,100 ... Reflector, 7c, 100b ... Elastic part.

Claims (1)

[Scope of utility model registration request] 1. A liquid crystal having at least an image display block accommodating a liquid crystal panel, an illumination block including a fluorescent tube and a reflector, and a housing for accommodating and holding the image display block and the illumination block. In the display device, a reflection plate having an elastic portion is provided on the back surface of the image display block, and the image display block is elastically pressed and sandwiched between the housing by the reflection plate. Retention structure.