JP3386294B2 - Plasma display device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display device which displays television images and the like and is excellent in maintainability.

[0002]

2. Description of the Related Art FIG. 2 is a front view of a plasma display device, and FIG. 3 is a side view (cross section) of an optical filter mounting portion (A) of a conventional plasma display device, and a front view of an optical filter portion. . The optical filter 1 is attached to the display window 2a opened in the front frame 2 of the housing, and the image of the PDP 3 arranged behind it is displayed. The optical filter 1 is pressure-bonded to a rubber packing 34 adhered to the periphery of the display window 2a of the front frame 2 of the housing. The rubber rubber packing 34 is adhered to the front frame 2 by the adhesive portion 34a, but there is a slight gap because it is not adhered to the filter 1, and water droplets may enter the device when cleaning the optical filter surface. There was. Further, in this rubber packing 34, a corner portion 34c of the optical filter 1 is cut, and there is a possibility that water droplets or the like may also enter from this portion during cleaning.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a method of constructing a plasma display device without the risk of water droplets or the like entering when cleaning an optical filter. .

[0004]

[MEANS FOR SOLVING PROBLEMS] A rubber packing is arranged around a display window opened in a front frame of a casing of a plasma display device, one side of the rubber packing is adhered to the front frame, and the other side is bonded to the optical side. Attach by attaching to the filter.

The rubber packing has a seamless integral structure having a window slightly larger than the display window of the front frame.

The rubber packing is in the form of a single piece of string, which is joined at the upper part of the display window and adhered to the front frame and the optical filter.

A protrusion facing the front frame is provided on the outer edge of the portion of the optical filter where the rubber packing is attached.

[0008]

A rubber packing is arranged around a display window opened in the front frame of the housing of the plasma display device, one side of the rubber packing is adhered to the front frame, and the other side is adhered to the optical filter. As a result, the rubber packing is interposed between the optical filter and the front frame without any gap, and the infiltration of water drops and the like is eliminated.

Since the rubber packing has a seamless integrated structure having a window slightly larger than the display window of the front frame, there is no fear of water droplets penetrating from the seam of the rubber packing.

The rubber packing is in the form of a single string, and is bonded at one point on the upper part of the display window and adhered to the front frame and the optical filter, so that the rubber packing has a shape that is easy to manufacture and prevents water droplets from entering. it can.

By providing a projection toward the front frame on the outer edge of the outer side of the portion where the rubber packing of the optical filter is attached, the prevention of intrusion of water droplets becomes more complete, and the positioning of the rubber packing during manufacture becomes easier. .

[0012]

The plasma display device according to the present invention will be described in detail below with reference to the drawings. FIG. 1 shows an embodiment of a plasma display device according to the present invention (A).
FIG. 2 is a front view of the plasma display device as described above, with a side view (cross section) of the optical filter attachment part, (B) a front view of the optical filter part. The optical filter 1 is attached to the display window 2a opened in the front frame 2 of the housing, and the image of the PDP 3 arranged behind it is displayed. A rubber packing 4 is arranged between the optical filter 1 and the optical filter 1 around the display window 2a of the front frame 2 of the housing of the optical filter 1. One side 4a of the rubber packing 4 is bonded to the front frame 2 with a double-sided tape or the like.
Similarly, the opposite surface 4b of the rubber packing 4 is the optical filter 1
Adhesive with double-sided tape.

In another embodiment of the plasma display apparatus according to the present invention, the rubber packing 4 is a seamless window having a window slightly larger than the display window 2a of the front frame 2, that is, slightly smaller than the outer edge of the optical filter 1. It can be an integral structure. Alternatively, the rubber packing 4 may be formed in a string shape and bonded at the upper portion 4C of the optical filter 1.

A projection 5 is provided on the outer edge of the rubber packing 4 of the optical filter 1 toward the front frame. This protrusion is obtained by, for example, hollowing out a plastic plate and adhering it to the outer edge of the optical filter.

[0015]

As described above, in the plasma display device in which an optical filter is attached to the front surface of the PDP for display, rubber packing is provided between the optical filter and the front frame of the housing, and one side thereof is bonded to the front frame. However, by attaching the opposite surface to the optical filter by adhesion, water droplets and the like do not enter even when the optical filter is cleaned, so that reliability of the device is not impaired and maintainability is improved.

[Brief description of drawings]

FIG. 1 is a side view (cross section) of an optical filter mounting portion (A) of one embodiment of a plasma display device according to the present invention,
(B) It is a front view of an optical filter unit.

FIG. 2 is a front view of a plasma display device.

3A and 3B are a side view (cross section) of an optical filter attachment portion (A) and a front view of an optical filter portion (B) of a conventional plasma display device.

[Explanation of symbols]

1 Optical filter 2 Front frame of housing 3 PDP (plasma display panel) 4 rubber packing 5 protrusions 34 rubber packing

Claims (4)

(57) [Claims] 1. A PDP (plasma display panel)
In a plasma display device having an optical filter on the front surface of the, a rubber packing is arranged around the display window opened in the front frame of the housing of the plasma display device,
A plasma display device, wherein one side of the rubber packing is adhered to the front frame and the other side is adhered to the optical filter. 2. The plasma display device according to claim 1, wherein the rubber packing has a seamless integral structure having a window slightly larger than the display window of the front frame. 3. The plasma display device according to claim 1, wherein the rubber packing is in the form of a single string, and is bonded at the upper part of the display window to be bonded to the front frame and the optical filter. 4. The plasma display device according to claim 1, wherein the outer edge of the portion of the optical filter where the rubber packing is attached is provided with a protrusion directed toward the front frame.