JPH08124487A - Plasma display panel - Google Patents

Abstract

PURPOSE: To reduce the area of a non-display portion to provide a plasma display panel suited for the constitution of a multiple screen by causing an externally connecting terminal for connection to display electrodes pulled out of a sealant from a pair of substrates to be drawn out onto the back of the substrates along the end of the back substrate. CONSTITUTION: The display-surface-side substrate 1a of a pair of substrates 1 is formed by a transparent glass substrate, and the back substrate 1b is constructed of a nontransparent ceramic substrate. A sealant 2 is placed around the space between the pair of substrates 1 to seal the space to form a discharging gap 11, and discharge emission gas (e.g. mixed gases of Ne and Ar) is sealed inside the gap 11. A discharge- maintaining electrode (3a) comprises a pair of transparent electrodes 31, 32 extending in X (cross) direction inside the substrate 1a and a bus electrode 33. Address electrodes 3b extend in Y direction inside the substrate 1b. An externally connecting terminal 4a is connected to the bus electrode 33, curved into an L-shape along the end of the substrate 1b, guided out onto the back of the substrate 1b, and connected to an external circuit. An external terminal 4b is also connected to a terminal 3b, curved into an L-shape along the end of the substrate 1b, guided out onto the back of the substrate 1b, and connected to the external circuit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plasma display panel, and more particularly to a plasma display panel suitable for forming a multi-screen.

[0002]

2. Description of the Related Art A dot matrix display type plasma display panel (hereinafter referred to as PDP) that displays characters and figures by combining dots (pixels) to emit light.
Is a pair of substrates that are opposed to each other with a predetermined gap therebetween, and the periphery thereof is sealed to form a discharge gap, and the discharge cells defined at or near each intersection of the electrode groups arranged in a grid pattern are formed. It is configured to selectively discharge. Conventionally, as shown in FIG. 5, in a discharge gap obtained by sealing a periphery of a pair of transparent substrates, at least one of which is opposed, with a sealing material,
PDP in which display electrodes are arranged and discharge luminous gas is sealed
Since the external connection terminals are arranged on the same plane around the display surface of the PDP, wiring materials such as wires and connectors connected to the terminals are arranged around the external connection terminals to form a multi-screen. In such a case, the area of the non-display portion becomes large as shown in FIG.

[0003]

SUMMARY OF THE INVENTION The present invention solves the problems described above, and when the external connection terminals are pulled out to the rear surface of the display surface, the area of the non-display portion is reduced as much as possible to form a multi-screen. It is intended to provide a suitable plasma display panel.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a display for display in a discharge gap obtained by sealing a pair of substrates, at least one of which is opposed and is transparent, with a sealing material. In a plasma display panel in which electrodes are arranged and a discharge emission gas is sealed, an external connection terminal connected to a display electrode drawn out from the pair of substrates to the outside of the encapsulant is provided along the substrate edge on the back side. , Is pulled out to the back side. Further, in a plasma display panel in which a display electrode is arranged in a discharge gap obtained by sealing a periphery of a pair of transparent substrates, at least one of which is opposed to each other, with a sealing material, and a discharge luminescent gas is sealed, The external connection terminals connected to the display electrodes that are drawn out of the encapsulant from the substrate of (1) are housed inside the pair of substrates, and the back side substrate is provided with through holes for connecting to the external connection terminals. Have been derived.

[0005]

With the above construction, in the plasma display panel of the present invention, the external connection terminals are made to be as small as possible on the back side substrate and are drawn out to the back side along the edge of the substrate. The display area can be reduced, and wiring wires and connectors can be arranged on the back surface of the display screen.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A plasma display panel according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of a plasma display panel according to the present invention. In the figure, 1 is a pair of substrates, the substrate 1a on the display surface side is a transparent glass substrate, and the substrate 1 on the back surface side is
b is composed of an opaque ceramic substrate. Reference numeral 2 denotes a sealing material such as glass, which is arranged and sealed around the pair of substrates 1 to form a discharge gap 11, and the discharge gap 1 is formed.
A discharge emission gas, for example, a mixed gas of neon and xenon, is enclosed in the reference numeral 1. A discharge sustaining electrode 3a is composed of a pair of transparent electrodes 31 and 32 extending in the X (horizontal) direction inside the glass substrate 1a on the display surface side, and a bus electrode 33. Reference numeral 3b is an address electrode, which extends in the Y (vertical) direction inside the ceramic substrate 1b on the back side. An external connection terminal 4a is connected to the bus electrode 33, is bent in an L shape along the end of the ceramic substrate 1b, is led out to the back surface of the ceramic substrate, and is used for connection with an external circuit. It 4b is also an external connection terminal, and the address electrode 3b
, Is bent along the end of the ceramic substrate 1b into an L shape, is led out to the back surface of the ceramic substrate, and is used for connection with an external circuit. Reference numeral 5 denotes a molding material, which fixes the external connection terminals 4a and 4b to the substrate 1.

FIG. 2 is a sectional view showing another embodiment of the plasma display panel according to the present invention. In the figure,
Those having the same functions as those in FIG. 1 use the same symbols. Figure 2
In the case of the external connection terminal 4a, the end portion of the external connection terminal 4a is the bus electrode 3
3 along the edge of the ceramic substrate 1b,
It is led out linearly on the back surface of the ceramic substrate.

FIG. 3 is a sectional view showing another embodiment of the plasma display panel according to the present invention. In the figure,
Those having the same functions as those in FIG.
Is a through hole formed at a position outside the sealing portion of the ceramic substrate 1b so as to be connected to the connection terminal 4c connected to the bus electrode 33, and led out to the back surface of the ceramic substrate 1b. Further, 6b is also a through hole, is formed outside the sealing portion of the ceramic substrate 1b so as to be connected to the address electrode 33, and is led out to the back surface of the ceramic substrate 1b.

A method of manufacturing the above-mentioned structure will be briefly described below. First, in order to keep the discharge gap 11 airtight on one surface of the ceramic substrate 1b, that is, an inner surface, an airtight layer 30 made of silicon dioxide is provided by sputtering deposition or the like, and an address electrode 3b is formed by a thick film method. After that, low melting point glass is printed as a sealing material, and an L-shaped external connection terminal 4b is formed on the address electrode 3b with a conductive paste.
Are linked. Then, a glass substrate in which a metal film layer which becomes a part of the discharge sustaining electrodes 31 and 32 and the bus electrode 33 is provided separately from the ceramic substrate, and the bus electrode 33 is connected to an L-shaped external connection terminal 4a with a conductive paste. 1a are superposed, and a predetermined heat treatment is performed to seal with the sealing glass 2 and form a connecting portion. After that, the mixed gas is filled to complete the process.

In the above-mentioned embodiment, the PDP having the electrodes 3a and 32b on the glass substrate 1a and the ceramic substrate 1b is illustrated, but the PDP having the display electrode only on one of the substrates 1a and 1b is also applicable to the present invention. Applicable.

[0011]

As described above, according to the plasma display panel of the present invention, both the bus electrode 33 on the display surface side and the address electrode 3b on the back surface side are led out to the back surface, so that the vertical direction of the PDP and Horizontal non-display area D
The width of 2 can be made smaller than before, and as shown in FIG.
It is possible to provide a PDP suitable for forming a multi-screen in which a plurality of PDPs are arranged vertically and horizontally.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a plasma display panel according to the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of the plasma display panel according to the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the plasma display panel according to the present invention.

FIG. 4 is a diagram showing an effect when a multi-screen is configured.

FIG. 5 is a sectional view showing a structure of a conventional plasma display panel.

[Explanation of symbols]

 1 Pair of Substrates 1a Glass Substrate 1b Ceramic Substrate 2 Sealing Material 3 Electrodes 3a Pair of Discharge Sustaining Electrodes 3b Address Electrodes 4 External Connection Terminals 5 Molding Material 6 Through Hole 30 Airtight Layer 31 Discharge Sustaining Electrodes 32 Discharge Sustaining Electrodes 33 Bus Electrodes

Claims (4)

[Claims] 1. A plasma display panel in which display electrodes are arranged in a discharge gap obtained by sealing a pair of transparent substrates, at least one of which is opposed to each other, with a sealing material, and discharge luminous gas is sealed. A plasma display panel, wherein external connection terminals connected to display electrodes that are drawn out of the encapsulant from the pair of substrates are drawn to the back side along the back side substrate edge. . 2. A plasma display panel in which display electrodes are arranged in a discharge gap obtained by sealing a pair of substrates, at least one of which is opposed to each other, and which is transparent, with a sealing material, and a discharge emission gas is sealed. An external connection terminal connected to a display electrode drawn out from the pair of substrates to the outside of the encapsulant is housed inside the pair of substrates, and a rear side substrate is provided with a through hole connected to the external connection terminal. The plasma display panel is characterized in that it is led to the back side. 3. The plasma display panel according to claim 1, wherein the size of the back side substrate of the pair of substrates is made smaller than the size of the substrate on the entire surface side by at least the thickness of the external connection terminal. . 4. The plasma display panel according to claim 1, wherein the external connection terminal is bent toward the rear surface in an L-shape along the substrate edge on the rear surface and is drawn out.