JPH09107513A - Filter mount structure for image display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter mount structure for the image display device in which the mount/dismount of a filter is made freely from the outside of the display device, the filter is easily replaced depending on application and the filter is in close mount to a plasma display panel when the filter is mounted. SOLUTION: A flat plate filter 1 having fixing projection pieces 3, 6 or the like provided in upper and lower parts of an end face, in which the length of the upper projection piece is set longer than that of the lower projection, and insert holes 12, 13 are provided at an end face of an upper projection section 9 and a lower projection section 10 of an opening 19 for a display screen of a cabinet 8, to which the projection pieces are respectively inserted. Then the ridge of the insert holes 12, 13 is in contact with the display screen 14 at the end face of the upper projection section 9 and a lower projection section 10 and the projection pieces are inserted to the insert hole to fix the filter 1 in close contact onto the display screen 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter mounting structure for an image display device having a flat screen such as a plasma display panel.

[0002]

2. Description of the Related Art In a conventional plasma display, a flat filter for light transmittance adjustment or color adjustment is arranged in front of an image display surface. In order to make the display screen brighter, one having a high light transmittance is used, or when there is a color that is desired to look particularly good, a corresponding color filter is used. If the filter is not attached in close contact with the plasma display panel, there is a problem that parallax occurs between the image displayed on the plasma display panel and the image displayed on the filter, which makes it difficult to see the image. Since it is attached to the inside of the cabinet integrally with the display panel, there is a problem in that the device must be disassembled when the filter is replaced.

[0003]

SUMMARY OF THE INVENTION According to the present invention, a filter can be attached and detached freely from the outside of the apparatus, so that the filter can be easily exchanged according to the application, and the plasma display panel when attached. It is an object of the present invention to provide a filter mounting structure for an image display device, which can be fixed so as to be in close contact with the filter.

[0004]

A filter mounting structure for an image display device according to the first invention of the present application is a flat plate in which projecting pieces for fixing are provided in the vertical direction of an end face, and the length of the projecting pieces above the lower part is longer. Shaped filter, and insertion holes provided in the upper and lower portions of the protruding portion of the opening for the display screen of the cabinet, into which the projecting pieces are respectively inserted. The filter mounting structure of the image display device according to the second invention of the present application is characterized in that the edge of the insertion hole is arranged to be in contact with the screen, and each of the protruding portions of the opening is provided.

In the filter mounting structure of the image display device of the third invention of the present application, the size of the opening is made larger than the effective image display area of the display screen, and the length of the lower side of the protruding piece is the upper side of the opening. Is shorter than the interval between the effective image display area of the display screen and the upper side of the effective image display area. In the filter mounting structure of the image display device of the fourth invention of the present application, the lower side of the protruding portion of the upper portion is protruded inward from the opening, and the protruded length is made longer than the length of the lower side of the protruding piece. Is characterized by.

[0006]

According to the present invention, the filter is attached by the above-described structure, and the protruding piece for fixing is provided in the vertical direction of the end face of the flat plate-like filter so that the length of the protruding piece above the lower part is increased. Inserting the projecting pieces into the upper and lower parts of the protruding portion of the cabinet display screen, insert the projecting pieces into the insertion holes by placing the edges of the projecting holes in contact with the display screen. The filter is fixed by attaching it to the display screen so that the filter can be fixed by adhering it to the display screen, and the protruding piece is inserted into the insertion hole to attach the filter. Can be freely installed from outside the device, and the filter can be easily replaced according to the application.

Further, the size of the opening for the display screen is made larger than the effective image display area of the display screen, and the length of the lower side of the protruding piece is between the upper side of the opening and the upper side of the effective image display area of the display screen. Because it is shorter than the interval,
With the filter attached, the entire effective image display area can be covered with the filter, and the image can be easily viewed. Alternatively, the lower side of the upper protruding portion is made to protrude inward from the opening for the display screen, and the length of this protruding is made longer than the length of the lower side of the protruding piece. Therefore, when the filter is attached, It is possible to prevent the upper end surface of the filter from protruding to the surface of the display screen, and to adjust the appearance.

[0008]

1 is a perspective view showing the structure of a filter mounting structure for an image display device according to the present invention, and FIG. 2 is an enlarged view of a main part for explaining an assembled state of the filter mounting structure for an image display device according to the present invention. FIG. 3 is a side view, and an embodiment will be described below with reference to FIGS. 1 and 2. As the filter 1, a flat plate-like member made of a plastic material having a predetermined light transmittance or a predetermined color is used, and the projecting pieces 3 and 4 for fixing are separated at two positions on the upper end face 2. Similarly, projecting pieces 6 and 7 for fixing are separately provided at two locations on the lower end surface 5.

On the other hand, the periphery of the opening 19 for exposing the image display screen 14 of the cabinet 8 of the plasma display is projected so that the screen 14 can be fixed inside the cabinet 8, and the projection 9 at the upper part is fixed. The lower end surface 16 is provided with insertion holes 17 and 18, and the insertion holes 17 and 18 are positioned corresponding to the protruding pieces 3 and 4, respectively. Similarly, the insertion hole 1 is formed in the upper end surface 11 of the lower protruding portion 10.
2 and 13 are provided, and the insertion holes 12 and 13 are located at positions corresponding to the protruding pieces 6 and 7, respectively.

The insertion holes 12 and 13 are, for example, rectangular in shape, and one side of each rectangle is the image display screen 1.
4, the filter 1 is provided in contact with the image display screen 1
4, so that the protrusions 3 and 4 can be fixed so that the protruding lengths of the protruding pieces 3 and 4 above are longer than the protruding lengths of the protruding pieces 6 and 7 below. And 18 and then slide downward while pressing against the surface of the image display screen 14 to insert the protruding pieces 6 and 7 into the corresponding ones of the insertion holes 12 and 13.

Compared with a CRT (cathode ray tube), a plasma display panel can display an image up to the peripheral portion of the CRT. Therefore, the size of the opening 19 is larger than that of the effective image display area 15 where the image can be displayed. Increase the horizontal length of the filter 1 to the effective image display area 1
5, the distance between the upper side of the effective image display area 15 and the upper side of the opening 19 is a.
If the downward protrusion distance of the protruding pieces 6 and 7 is b,
When a> b, the protruding pieces 6 and 7 of the filter 1 are inserted into the insertion hole 12
Inserted and attached to the applicable item of 13 and 13,
The entire effective image display area 15 can be covered with the filter 1.

Further, the lower side portion 20 of the projecting portion 9 is opened 19
It is made to project further inward, and this projected length is made longer than the length of the projecting pieces 6 and 7, and therefore,
It is possible to prevent the upper end surface 2 of the filter 1 from protruding to the display screen surface when the filter 1 is attached, so that the appearance can be adjusted. In the present invention, since the filter 1 is attached by inserting the protruding piece into the insertion hole, the filter 1 can be attached and detached freely from the outside of the device, and the filter 1 can be replaced according to the application. Will be easier.

Further, since the insertion hole is provided in contact with the image display screen 14, the filter 1 can be closely attached to the image display screen 14 and fixed. Further, the size of the opening 19 for the display screen 14 is made larger than the effective image display area 15, and the length of the protruding pieces 6 and 7 is made shorter than the distance between the protruding portion 9 and the upper side of the effective image display area 15. Since the filter 1 is attached, the entire effective image display area 15 can be covered with the filter 1, so that the image can be easily viewed. In the above-described embodiment, the protruding piece and the insertion hole of the protruding piece are provided at two places in each part, but the number may be increased or decreased.

[0014]

As described above, according to the present invention,
Since the filter is fixed by inserting the protruding piece provided on the filter into the insertion hole provided on the outside of the cabinet, it becomes possible to freely attach and detach the filter from the outside of the device. The filter can be easily replaced, and the insertion hole is provided at the position where it comes into contact with the display screen, so that the filter can be fixed in close contact with the image display screen. Since the length is set to a predetermined dimension, the entire effective image display area can be covered with the filter with the filter attached, so that the image can be easily viewed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a filter mounting structure of an image display device of the present invention.

FIG. 2 is an enlarged side view of essential parts for explaining an assembled state of the filter mounting structure of the image display device of the present invention.

[Explanation of symbols]

 1 Filter 2 Upper End Face 3 Projection Piece 4 Projection Piece 5 Lower End Face 6 Projection Piece 7 Projection Piece 8 Cabinet 9 Projection Part 10 Projection Section 11 End Surface 12 Insertion Hole 13 Insertion Hole 14 Screen 15 Effective Image Display Area 16 End Surface 17 Insertion Hole 18 Insertion Hole 19 Opening 20 Lower side

Claims (4)

[Claims] 1. A flat plate-shaped filter in which fixing protrusions are provided in the vertical direction of the end face, and the length of the protrusions above the bottom is longer, and the upper and lower portions of the protrusion of the opening for the display screen of the cabinet. A filter mounting structure for an image display device, comprising: insertion holes for inserting the protruding pieces, respectively. 2. A filter mounting structure for an image display apparatus according to claim 1, wherein the edge of the insertion hole is arranged to be in contact with the screen, and each of the protruding portions of the opening is provided. 3. The size of the opening is larger than the effective image display area of the display screen, and the length of the lower side of the protruding piece is the upper side of the opening and the upper side of the effective image display area of the display screen. 3. The filter mounting structure for an image display device according to claim 1, wherein the filter mounting structure is shorter than the interval. 4. The method according to claim 1, wherein the lower side of the upper protruding portion is protruded inward from the opening, and the length of the protrusion is longer than the lower length of the protruding piece. The filter mounting structure of the image display device according to 2.