JPH11251766A - Dustproof structure of plasma display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dustproof structure which can be assembled easily and precisely also when using a large PDP. SOLUTION: An optical filter 1 coated overall with an antireflection coating and so on is stuck on the window of a front frame 10a which is the forward part of a housing of a plasma display 10, and a PDP 3 comprising two glass panes is contained at the rear of the front frame, TV picture and so on are displayed by driving by a circuit board 5 on which circuit parts 5a are mounted. The back of the PDP 3 is stuck on a mounting plate 4, and the mounting plate 4 is secured to a boss 4a provided inside the front frame 10a by a screw 4b. The rear of PDP<4> is covered with a rear cover 10b. In order to protect against intrusion by dust and so on from the gap between the optical filter 1 and the front frame 10a, the optical filter 1 of which a rubber packing 2 is previously attached to the periphery is mounted, which enables the assembly of the flexible rubber packing to be easily processed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dustproof structure of a plasma display which can be easily assembled even when a large PDP (plasma display panel) is used.

[0002]

2. Description of the Related Art Plasma displays have come to be used heavily as thin and large-screen display devices. In a plasma display, a front frame, which is a part of a housing, and a PDP are provided to prevent dust and the like from entering the inside of the device.
A rubber packing is sandwiched between an optical filter installed on the front surface of the display surface of the PDP for protection of the PDP. Conventionally, this rubber packing is obtained by cutting a rubber sheet into strips, or cutting the rubber sheet into a rectangular shape, and attaching the rubber sheet to the periphery of the optical filter. However, a large P with a display surface of 42 type class
In the case of DP, since the vertical and horizontal dimensions are as large as 600 × 1040 mm, there is a problem that a strip-shaped rubber sheet has a gap between strips when attached to the periphery of the optical filter. In addition, the square-shaped rubber sheet has a problem in that the shape is not fixed and it is difficult to attach the rubber sheet.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a dustproof structure that can be easily and accurately assembled even when a large PDP is used.

[0004]

Means for Solving the Problems A rubber packing or the like is interposed between a front frame of a plasma display for displaying television images or the like using a PDP (plasma display panel) and an optical filter to prevent dust and the like from entering. In the dustproof structure, a means for attaching a rubber packing to a peripheral portion of the optical filter is provided, and an optical filter to which a rubber packing is attached in advance is attached to prevent dust and the like from entering.

[0005] The rubber packing holding means is that the rubber packing is a substantially U-shaped rubber packing frame whose cross section is opened inward, and the U-shaped portion grips the periphery of the optical filter. , A rubber packing is attached to the periphery of the optical filter.

The rubber packing attaching means forms the rubber packing by attaching the rubber to the periphery of the optical filter by immersion.

The means for attaching the rubber packing forms the rubber packing by printing on the periphery of the optical filter.

The optical filter is formed by spreading a transparent conductive film for shielding electromagnetic waves, and the rubber packing is made conductive.

The rubber packing holds a core material such as a piano wire.

The optical filter is formed by spreading a transparent conductive film for shielding electromagnetic waves, the rubber packing frame is made conductive, and the core is made conductive so that electrodes are drawn out from at least one portion of the core.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a partial sectional side view of a plasma display showing one embodiment of a dustproof structure of the plasma display according to the present invention. An optical filter 1 on which an anti-reflection film or the like is spread is attached to a window of a front frame 10a which is a front part of a housing of the plasma display 10, and a PDP 3 made of two glass plates or the like is stored in the rear part. Is driven by the circuit board 5 on which the circuit components 5a and the like are mounted to display television images and the like. PDP3 is a mounting bracket 4 attached to the back.
Then, a screw 4b is attached to the boss 4a planted inside the front frame 10a.
And fix it. At the back of PDP4, the rear cover 1
0b. In order to prevent dust and the like from entering from a gap between the optical filter 1 and the front frame 10a, the optical filter 1 having a rubber packing 2 attached to a peripheral portion in advance is attached, so that the shape is not uniform. No rubber packing facilitates processing during assembly.

FIG. 2A is a side view, FIG. 2B is a front view, and FIG. 2C is a sectional side view of a main part of an optical filter and a rubber packing showing an embodiment of a dustproof structure of a plasma display according to the present invention. . The rubber packing 2 is a substantially U-shaped rubber packing frame whose cross section 2a is opened inward. The rubber packing 2 is attached to the entire periphery of the optical filter 1 so that the U-shaped portion 2b grips the periphery of the optical filter 1. With such a structure, the rubber packing is fixed around the optical filter by the tension of the rubber, so that the optical filter can be easily mounted on the front frame, and the gap between the optical filter and the front frame can be provided. It is possible to surely achieve the dust-proof effect without a risk of forming a gap.

FIG. 3A is a side view, FIG. 3B is a front view, and FIG. 3C is an essential part of an optical filter and rubber packing showing another embodiment of the dustproof structure of the plasma display according to the present invention.
It is a side sectional view. A rubber packing 32 is formed by immersing the peripheral portion of the optical filter 31 in raw rubber before coagulation and then coagulating the raw rubber. By mounting the optical filter 31 having the rubber packing 32 on the peripheral portion on the front frame of the plasma display in the same manner as described above, the optical filter can be easily mounted on the front frame, and The dustproof effect can be achieved without forming a gap between the front frame.

FIGS. 4A and 4B are (A) a side view and (B) a front view of a main part of an optical filter and a rubber packing showing still another embodiment of the dustproof structure of the plasma display according to the present invention.
(C) It is a sectional side view. Around the optical filter 41,
The rubber packing 42 is formed by applying raw rubber before solidification by printing and then solidifying the raw rubber. An optical filter 41 having a rubber packing 42 attached to a peripheral portion thereof,
By attaching the optical filter to the front frame of the plasma display in the same manner as described above, the optical filter can be easily and reliably mounted on the front frame.

FIG. 5A is a side view, FIG. 5B is a front view, and FIG. 5C is an essential part of an optical filter and rubber packing showing another embodiment of the dustproof structure of the plasma display according to the present invention.
It is a side sectional view. A frame-shaped rubber packing 52 having a substantially U-shaped cross section 52a is attached to the periphery of the optical filter.
By holding the core material 56 such as a piano wire in the rubber packing 52, the shape of the frame-shaped rubber packing 52 is stabilized, so that the rubber filter 52 can be easily mounted on the optical filter 51. When the optical filter 51 has a transparent conductive film for shielding electromagnetic waves spread thereon, the rubber packing 5
When 2 is made of conductive rubber, it can also serve as an electrode of the transparent conductive film, and the transparent conductive film can be electrically connected to the conductor inside the front frame. Further, the core material 56 is made of a conductor, and the electrode 57 is
By pulling it out and connecting it to an external grounding part, the connection resistance can be reduced.

[0016]

As described above, in a dustproof structure for preventing dust and the like from entering by sandwiching a rubber packing or the like between a front frame of a plasma display for displaying television images or the like using a PDP and an optical filter. Even if a large PDP is used, a rubber packing can be easily attached even if a large PDP is used by providing a means for attaching the rubber packing to the Can be mounted, and a dustproof structure having a good dustproof effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a partial sectional side view of a plasma display showing one embodiment of a dustproof structure of the plasma display according to the present invention.

2A is a side view, FIG. 2B is a front view, and FIG. 2C is a sectional side view of a main part of an optical filter and a rubber packing showing an embodiment of a dustproof structure of a plasma display according to the present invention.

3A is a side view, FIG. 3B is a front view, and FIG. 3C is a sectional side view of a main part of an optical filter and a rubber packing showing another embodiment of the dustproof structure of the plasma display according to the present invention.

4A is a side view, FIG. 4B is a front view, and FIG. 4C is a sectional side view of a main part of an optical filter and a rubber packing showing still another embodiment of the dustproof structure of the plasma display according to the present invention.

5A is a side view, FIG. 5B is a front view, and FIG. 5C is a sectional side view of a main part of an optical filter and a rubber packing showing another embodiment of the dustproof structure of the plasma display according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 optical filter 2 rubber packing 3 PDP 4 mounting bracket 5 circuit board 10 plasma display 31, 41, 51 optical filter 32, 42, 52 rubber packing 56 core material 57 electrode

Claims (7)

[Claims] 1. PDP (Plasma Display Panel)
In a dustproof structure that prevents the intrusion of dust etc. by sandwiching a rubber packing between the front frame of a plasma display that displays television images and the like using an optical filter, holding the rubber packing around the optical filter Providing wearing means,
A dustproof structure for a plasma display, wherein a dustproof structure is prevented by mounting an optical filter to which a rubber packing is attached in advance. 2. The rubber packing holding means is a substantially U-shaped rubber packing frame whose cross section is opened inward, and the U-shaped portion grips a peripheral portion of the optical filter. 2. The dustproof structure for a plasma display according to claim 1, wherein a rubber packing is attached to a peripheral portion of the optical filter. 3. The plasma display according to claim 1, wherein said rubber packing attaching means forms a rubber packing by attaching rubber by immersion around an optical filter. Dustproof structure. 4. The dustproof structure for a plasma display according to claim 1, wherein said rubber packing attaching means forms a rubber packing by printing on a peripheral portion of an optical filter. 5. The dustproof structure for a plasma display according to claim 1, wherein said optical filter is formed by spreading a transparent conductive film for shielding electromagnetic waves, and said rubber packing is made conductive. 6. The dustproof structure for a plasma display according to claim 2, wherein a core material such as a piano wire is held in the rubber packing. 7. The optical filter has a transparent conductive film for shielding electromagnetic waves spread thereon, the rubber packing frame is made conductive, and the core material is made conductive so that an electrode is drawn out from at least one place of the core material. 7. The dustproof structure for a plasma display according to claim 6, wherein: