KR100670265B1 - Plasma display module including auxiliary light-emitting means and plasma display apparatus comprising the same - Google Patents

Abstract

The present invention is to provide a plasma display module having an auxiliary light emitting means is increased in brightness, the present invention to achieve the above object is a plasma display panel for displaying an image using a gas discharge; A chassis in which the plasma display panel is disposed at a front side and a driving circuit board which drives the plasma display panel at a rear side thereof; And an auxiliary light emitting means disposed at at least one edge of the plasma display panel, and a plasma display apparatus having the same.

Description

Plasma display module including auxiliary light emitting means and plasma display device having the same {Plasma display module including auxiliary light-emitting means and plasma display apparatus comprising the same}

1 is a perspective view of a plasma display module according to a preferred embodiment of the present invention.

2 is an exploded perspective view of a plasma display device according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: plasma display device 110: plasma display module

120: plasma display panel 130: auxiliary light emitting means

140: filter 150: chassis

160: driving circuit board 180: case

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display module, and more particularly, to a plasma display module having an auxiliary light emitting means installed for increasing brightness and a plasma display device having the same.

In general, a plasma display device is a flat panel display device that displays an image by using a gas discharge phenomenon. The plasma display device is not only capable of thinning and realizing a large screen having a wide viewing angle, but also as a next-generation flat panel display device because of its simple manufacturing method and easy enlargement. I am in the limelight.

Such a plasma display device is configured by coupling a plasma display panel that implements an image using gas discharge to a structure such as a chassis, and attaching a circuit board for driving the panel to the structure to form an assembled plasma display module, and then case the module. It is completed by accommodating inside. In this case, a filter that performs a function of color correction is disposed in front of the plasma display module, which causes a problem that the luminance of the plasma display device is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and is provided with a plasma display module having an auxiliary light emitting means to increase brightness, thereby compensating for the brightness reduced by the filter to increase the overall brightness of the plasma display device. There is this.

In order to achieve the above object and other objects, the plasma display module of the present invention comprises a plasma display panel for displaying an image using gas discharge; A chassis in which the plasma display panel is disposed at a front side and a driving circuit board which drives the plasma display panel at a rear side thereof; And an auxiliary light emitting means disposed at at least one edge of the plasma display panel.

Here, the auxiliary light emitting means is preferably an elongated ultraviolet lamp.

In addition, the auxiliary light emitting means is preferably controlled by the drive circuit board.

On the other hand, the plasma display device according to another aspect of the invention the plasma display module; A filter disposed in front of the plasma display module; And a case accommodating the plasma display module and the filter.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the plasma display panel and the plasma display device having the same according to an embodiment of the present invention.

1 is a perspective view of a plasma display module 110 according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view of the plasma display device 100 employing the plasma display module of FIG.

Referring to FIG. 1, a plasma display module 110 according to a preferred embodiment of the present invention includes a plasma display panel 120 displaying an image using gas discharge, and a plasma display panel 120 disposed at a front side and a rear side thereof. And a chassis 150 on which a driving circuit board (not shown) for driving the plasma display panel 120 is disposed, and an auxiliary light emitting means 130 disposed at at least one edge of the plasma display panel 120. . The auxiliary light emitting means 130 is disposed long in the left and right directions on the upper side of the plasma display panel 120 by a supporting means 135 such as a socket.

The plasma display panel 120 includes a front panel 121 and a rear panel 122. Although not shown in FIG. 1, the front panel 121 includes a discharge sustaining electrode pair consisting of a front substrate, an X electrode serving as a scan electrode formed on the rear surface of the front substrate, and a Y electrode serving as a common electrode, and the discharge sustaining electrode pair. And a protective film formed on the first dielectric layer, wherein the rear panel 122 includes a rear substrate, address electrodes formed on the front surface of the rear substrate to intersect the pair of discharge sustaining electrodes; It is preferable to include a second dielectric layer covering the address electrode, a partition formed on the second dielectric layer, and a phosphor disposed in a light emitting cell defined by the partition. Although the structure of the plasma display panel 120 is an AC three-electrode surface discharge structure, the present invention is not limited thereto, and the present invention employs a plasma display panel having various other structures such as a two-electrode structure and an opposite discharge structure. It can be applied to one plasma display module.

Referring to the driving of the plasma display panel 120 configured as described above, an address discharge occurs by applying a predetermined potential between the Y electrode and one of the discharge sustaining electrode pairs and the address electrode in the driving circuit board 160 to be described later. Charged particles are formed on the first dielectric layer, and in this state, a predetermined voltage is applied to the pair of sustain discharge electrodes to generate a sustain discharge on the surface of the first dielectric layer of the front substrate. The phosphor layer is excited by the generated vacuum ultraviolet rays to emit visible light. The plasma display panel 120 may be driven in various ways according to a two-electrode structure, a three-electrode structure, a surface discharge method, a counter discharge method, and the like.

The auxiliary light emitting means 130 is preferably an ultraviolet lamp. Since the visible light emitted from the phosphor disposed in the plasma display panel 120 is emitted through a filter 140 to be described later disposed in front of the plasma display panel 120 for color correction or the like, the luminance decreases in this process. Is generated. In this case, since the auxiliary light emitting means 130 may perform an indirect and auxiliary light emitting function, it is possible to compensate for the luminance lowered by the filter 140. That is, for example, when the plasma display panel 120 realizes a bright image, the auxiliary light emitting means 130 acts as an auxiliary light source, and the plasma display panel 120 is caused by ultraviolet light emitted by the auxiliary light emitting means 130. The amount of visible light emitted from the phosphor layer in the interior may be increased. To this end, the auxiliary light emitting means 130 is preferably controlled by the drive circuit board 160.

2 is an exploded perspective view of a plasma display device 100 employing a plasma display module 110 according to a preferred embodiment of the present invention. The plasma display apparatus 100 includes a case for accommodating the plasma display module 110, the filter 140 disposed in front of the plasma display module 100, and the plasma display module 110 and the filter 140. 180). The case 180 includes a front case 181 and a rear case 182 that are matched to the front case 181, and the plasma display module is disposed in an inner space formed by the matching of the cases 181 and 182. 110 and the filter 140 are disposed to complete the plasma display apparatus 100.

The plasma display module 110 includes a plasma display panel 120 displaying an image using gas discharge and a chassis 150 disposed behind the plasma display panel 120 to support the plasma display panel 120. The plasma display panel 110 and the chassis 150 may be coupled to each other by an adhesive means such as a double-sided tape (not shown). In addition, a plurality of driving circuit boards 160 for driving the plasma display panel 120 are provided at the rear of the chassis 150.

The chassis 150 may be manufactured by casting or press working, and supports the plasma display panel 120 and the driving circuit board 160 from the front and the rear, respectively. The chassis 150 may be formed using a metal having high thermal conductivity such as aluminum to effectively dissipate heat transferred from the plasma display panel 120. In addition, the chassis 150 may be provided with a reinforcing member 151 to prevent thermal deformation of the chassis 150 and to add rigidity to the chassis 150. The reinforcing member 151 may be provided in plurality, or may have various cross-sectional shapes.

A plurality of driving circuit boards 160 for driving the plasma display panel 120 are disposed at the rear of the chassis 150. These driving circuit boards 160 may have a different arrangement form according to the driving method of the plasma display panel 120, and the arrangement form of the driving circuit board 160 is illustrated. Elements 161 for driving the plasma display panel 120 are mounted on the driving circuit board 160. The device 161 may include a device for supplying power to the plasma display panel 120 and a device for applying a signal for implementing an image to the plasma display panel. The driving circuit board 160 is electrically connected to the plasma display panel 120 by a connection cable 165 such as a tape carrier package.

A filter 140 made of a transparent material is disposed in front of the plasma display module 110. The filter 140 may be installed to block color reflection of electromagnetic waves, infrared rays, or external light generated from the plasma display panel 120. Although not shown in FIG. 2, the filter 140 may be pressed against the front case 181 by a supporting means such as a filter holder (not shown).

The front case 181 may have a substantially rectangular frame structure in which a window 181a is formed at the center. A plurality of openings 182a and 182b may be formed in the rear case 182 to allow air to communicate between the inside and the outside of the plasma display apparatus 100. As shown in FIG. 2, the openings 182a and 182b include a plurality of exhaust holes 182a through which air in the apparatus is discharged to the outside of the apparatus, and a plurality of intake holes through which air from the apparatus is introduced into the apparatus. 182b). The exhaust hole 182a may be formed over a portion of the upper surface of the rear case 182 and the upper side of the rear surface, and the intake hole 182b may be formed under the rear case 182.

The auxiliary light emitting means 130 is supported by a supporting means 135, such as a socket, is disposed long in the left and right direction on the upper edge of the plasma display panel 120. The supporting means 135 is a member for arranging the auxiliary light emitting means 130 on the plasma display panel 120, as described later, in accordance with a position where the auxiliary light emitting means 130 is disposed. It may take many different forms to support 130.

As described above, the auxiliary light emitting means 130, which is, for example, an ultraviolet lamp, performs an auxiliary light emitting function, whereby phosphors disposed inside the plasma display panel 120 are generated by ultraviolet rays generated by the auxiliary light emitting means 130. Further excited to increase the amount of visible light emitted from the plasma display panel 120. For example, when a bright image is realized in the plasma display panel 120, the auxiliary light emitting means 130 may also emit light to increase the amount of visible light generated in the plasma display panel 120. As the visible light is absorbed while passing through the filter 140 installed for the correction function, the luminance of the plasma display module 110 may be reduced. In order to perform such a function, the auxiliary light emitting means 130 is preferably controlled by the driving circuit board 160 for driving the plasma display panel 120 and controlling the applied signal. Although the conductive wires for controlling and driving the auxiliary light emitting means 130 are not shown in FIG. 2, preferably, the conductive lines from the driving circuit board 160 to the auxiliary light emitting means 130 are the plasma display panel. It may be disposed between the 120 and the chassis 150 or along one edge of the chassis 150.

On the other hand, the auxiliary light emitting means 130 is shown as being disposed on the upper side of the plasma display panel 120, but the present invention is not limited thereto. In detail, the auxiliary light emitting unit 130 may be disposed to be long at one edge of the chassis 150 to be disposed as an auxiliary light source of the plasma display panel 120. In addition, an inner surface of the case 180, that is, an inner surface of the case 180 may be disposed to face one edge of the plasma display panel 120. In addition, reflecting means (not shown) capable of reflecting and focusing the ultraviolet light generated by the auxiliary light emitting means 130 toward the plasma display panel 120 may be disposed in the longitudinal direction of the auxiliary light emitting means 130. It may be.

In addition, referring to FIGS. 1 and 2, the auxiliary light emitting unit 130 is shown to be formed to be formed on the upper edge of the plasma display panel 120 in the left and right directions, but preferably, the plasma display. It may be formed to surround all edges of the panel 120. In this case, since the amount of light generated by the auxiliary light emitting means 130 may be increased, the luminance degradation of the plasma display module 120 by the filter 140 may be sufficiently compensated.

 As described above, according to the plasma display module according to the present invention, the auxiliary light emitting means such as an ultraviolet lamp emits light, and not only direct light emission from the plasma display panel but also indirect light emission by the auxiliary light emitting means is added, such plasma The overall brightness of the plasma display device employing the display module is increased.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (4)

A plasma display panel for displaying an image using gas discharge; A chassis in which the plasma display panel is disposed at a front side and a driving circuit board which drives the plasma display panel at a rear side thereof; And And an auxiliary light emitting means disposed at at least one edge of the plasma display panel. The method of claim 1, The secondary light emitting means is a plasma display module, characterized in that an elongated ultraviolet lamp. The method of claim 1, And the auxiliary light emitting means is selectively controlled by the driving circuit board. A plasma display module according to any one of claims 1 to 3; A filter disposed in front of the plasma display module; And And a case accommodating the plasma display module and the filter.

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