JP2002352737A - Plasma display panel and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a plasma display panel which can avoid deterioration in display quality due to error of electric discharge in the outside of the display region, and can reduce the cost. SOLUTION: In the plasma display panel for displaying images by discharging a gas filled in between an opposed front substrate and a rear substrate, a black frame 4, formed in the process for forming a black layer 3, is arranged at the periphery of the display region 2 of the front substrate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a gas discharge display device, and more particularly to a color plasma display panel device and a method of manufacturing the same.

[0002]

2. Description of the Related Art Plasma display panels (PDPs)
As a typical configuration, as is well known, a parallel line-shaped electrode group is formed on each of two glass substrates (a front substrate and a rear substrate), and a dielectric layer,
An MgO film is formed as a protective layer on the dielectric layer, and the two substrates are hermetically sealed so that the respective electrode groups are orthogonal (horizontal electrode group, vertical electrode group), A gas is sealed in the gap to form a discharge space, and a plurality of discharge cells are formed in a matrix in the discharge space. By controlling discharge / non-discharge of each discharge cell, the phosphor layer emits light. Thus, a desired pixel display is obtained.

FIG. 6 is a diagram showing an example of a configuration of a front substrate of a conventional color plasma display panel. FIG.
FIG. 7 is an enlarged view of a portion C in FIG. 6. FIG.
Is a color plasma display panel (AC type PD
It is an exploded perspective view which shows the general structure of P). 5 and 6
A conventional color plasma display panel will be described with reference to FIG.

Referring to FIGS. 6 and 7, in this color plasma display panel, a display section 2 of a front substrate 1 (a discharge cell is formed, and a discharge-controlled PD
A black tape 18 is attached outside the (P display area).

A region outside the display unit 2 (a non-display region where no discharge cells are formed) is located in a sealed discharge space, and a region outside the display unit 2 is used to draw out the panel. Are formed. Then, a high voltage (such as a priming voltage) is applied to the scanning electrode (see FIG. 5).
When a voltage (approximately V) is applied, erroneous discharge may occur between electrodes facing the rear substrate (such as a panel crack detection electrode), and display quality is degraded due to light emission due to the erroneous discharge.

In order to prevent the display quality from deteriorating, FIG.
As shown in FIG. 7 and FIG. 7, in the conventional color plasma display device, in the manufacturing process,
The outside of the display unit 2 was affixed with a black tape 18, and the black tape 18 shielded light emission due to erroneous discharge.

[0007] However, the conventional color plasma display device has a problem that the work of attaching the black tape 18 to the outside of the display section 2 of the front substrate 1 is required, and the manufacturing cost is increased.

[0008] For example, Japanese Patent Application Laid-Open No. 10-275563 discloses a sealing region between a first substrate and a second substrate of a plasma display in order to prevent dielectric breakdown of a dielectric layer in a non-display region of the plasma display. A pair of X and Y when forming an X electrode wiring (a sustain electrode wiring constituting a display electrode wiring) and a Y electrode wiring (a scanning / sustaining electrode wiring) in a sealing portion region for drawing out to the outside of the panel Black stripes (BS; provided between electrode wirings)
A configuration is disclosed in which a black filter layer is extended to the vicinity of the panel sealing portion, thereby increasing the effective thickness of the dielectric layer formed on the upper layer with respect to the X and Y electrode wirings. A configuration extending outside the display unit is disclosed. In this configuration, a black stripe (BS) is formed outside the display unit in a blind shape. In Japanese Patent Application Laid-Open No. Hei 10-275563, the BS is extended out of the display unit in the form of a blind.
The thickness of the dielectric layer outside the display unit is increased to increase the withstand voltage of the dielectric layer. As will be apparent from the following description, in the present invention, a black stripe (BS) is provided around the display unit. Are formed in a solid shape, and in addition to the difference in configuration, the present invention shields unnecessary light.

[0009]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a color plasma display apparatus which eliminates the need for attaching a black tape and reduces the cost, which is required in a conventional color plasma display apparatus. An object of the present invention is to provide a plasma display device and a method of manufacturing the same.

[0010]

SUMMARY OF THE INVENTION The present invention, which provides means for solving the problems, is directed to a panel for performing display by discharging a gas sealed between a front substrate and a rear substrate which are arranged opposite to each other. The display device includes a frame-shaped black layer formed in a black stripe forming step on an outer peripheral portion of a display region of the front substrate.

According to the present invention, a scan electrode and a common electrode are arranged along one direction, a trace electrode is formed on the scan electrode and the common electrode, and the scan electrode, the common electrode and the trace are formed. The electrode is covered with a dielectric layer, a black layer is formed on the dielectric layer in a direction orthogonal to the trace electrode, and a front substrate covered with the dielectric layer and the protective layer, A data electrode is arranged along a direction orthogonal to the scanning electrode and the common electrode provided on the front substrate, the data electrode is covered with a dielectric layer, and a partition is formed on the dielectric layer. A back substrate formed with a phosphor between the partition walls, wherein the front substrate and the back substrate are sealed to face each other, outside a display area of the front substrate. Before And a black frame consisting formed of the same material as the black layer.

Further, in the present invention, a frame-shaped black layer formed of the same material as the black layer is provided outside the display region of the front substrate, and at least one end of the color filter is It may be configured such that it is formed so as to overlap a frame-shaped black layer.

[0013]

Embodiments of the present invention will be described. The black frame type color plasma display according to the embodiment of the present invention includes a step of forming a black filter layer outside a display portion (a region where discharge cells are formed, also referred to as a “display region”) of a front substrate, A frame-shaped black layer (this is referred to as a “black frame”) is provided to block light emission due to erroneous discharge and improve appearance quality.

According to another embodiment of the present invention, when a color filter (referred to as "CCF") is formed on the front substrate, both ends of the CCF are provided outside the area of the display section (2 in FIG. 1). It is formed on a black frame.

A configuration of a plasma display panel according to one embodiment of the present invention will be described with reference to FIGS. As a configuration of the front substrate (1), a scanning electrode (7) and a common electrode (8) are arranged in parallel in one direction (in the horizontal direction) on the front substrate (1). A trace electrode (9) is formed on 7) and the common electrode (8).

The scanning electrode (7), the common electrode (8) and the trace electrode (9) are covered with a dielectric layer (10) so as to cover the entire surface of the front substrate (1).

On the dielectric layer (10), a black layer (black filter layer) (3) for improving contrast in the direction perpendicular to the trace electrode (9) is formed. ) And a protective layer (12) such as an MgO layer for protecting the dielectric layer (11) from discharge.

The rear substrate (1) facing the front substrate (1)
3) On the surface, data electrodes (14) are arranged to extend in a direction perpendicular to the scanning electrodes (7) and the common electrodes (8) provided on the front substrate (1). The data electrode (14) is covered with a dielectric layer (15) and the dielectric layer (1).
On the 5), a partition (16) is formed. Red (R), green (G), blue (B) between adjacent partition walls (16)
Phosphor layers (17) are sequentially formed.

In this embodiment, a black frame (4) made of the same material as the black layer (3) (outside the display section (2)) is formed outside the display section (2) area of the front substrate (1). (A black layer formed on the substrate).

In another embodiment of the present invention, referring to FIGS. 3 and 5, on a front substrate (1), a scanning electrode (7) and a common electrode (8) are arranged in one direction, Trace electrode (9) on scanning electrode (7) and common electrode (8)
Are formed, the scanning electrode (7), the common electrode (8) and the trace electrode (9) are covered with a dielectric layer (10), and a black layer (3) is formed on the dielectric layer (10). A color filter (5), and a dielectric layer (11);
The dielectric layer (11) is covered with a protective layer (12) such as an MgO layer that protects it from discharge.
A data electrode (14) is arranged in a direction orthogonal to one direction, the data electrode (14) is covered with a dielectric layer (15), and a partition (16) is formed on the dielectric layer (15). Red (R), green (G), and blue (B) phosphor layers (17) are formed in this order between the partition walls (16), and are arranged in the display area (2) of the front substrate (1). Outside, black layer (3)
A black frame (4) made of the same material as that described above is provided, and both ends of the color filter (5) are formed so as to overlap the black frame (4).

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. First, a configuration of a color plasma display panel in which a CCF (color filter) is formed on a front substrate will be described. FIG. 5 is an exploded perspective view for explaining the configuration of a color plasma display panel (AC type).

As shown in FIG. 5, the color plasma display panel is constructed such that a front substrate 1 and a rear substrate 13 made of glass face each other and are hermetically sealed. On the front substrate 1, a transparent scanning electrode 7 made of ITO (indium tin oxide) or the like and a common electrode 8 are arranged in parallel in one direction (horizontal direction). Trace electrodes 9 made of a low-resistance metal material such as Ag are formed on the scan electrode 7 and the common electrode 8 in order to reduce the electric resistance value. The scanning electrode 7, the common electrode 8, and the trace electrode 9 are covered with a dielectric layer 10. A black stripe (BS) 3 is formed on the dielectric layer 10 in a direction orthogonal to the direction in which the trace electrodes 9 extend to prevent crosstalk due to light emission on adjacent scanning lines and improve contrast. And a color filter (CCF) 5. The black stripe (BS) 3 is formed using a dielectric material such as a black glass material.

Front substrate 1 surface (surface facing back substrate)
Is further covered with a dielectric layer 11 and an MgO (magnesium oxide) layer 12 for protecting the dielectric 11 from discharge.

Data electrodes 14 are arranged on the rear substrate 13 in a direction perpendicular to the scanning electrodes 7 and the common electrodes 8 provided on the front substrate 1, and the data electrodes 14 are covered with a dielectric layer 15. A partition 16 is formed on the layer 15, and red, green, and blue phosphors 17 are sequentially formed between the partition 16. Each phosphor layer 17 of three pixels (red (R), green (G), and blue (B)) constituting one picture element converts ultraviolet light generated by discharge of a discharge gas into visible light.

FIG. 1 is a plan view showing a front substrate according to an embodiment of the present invention. FIG. 2 is an enlarged partial view of the portion A in FIG.

A frame-shaped black layer (referred to as a “black frame”) 4 made of the same material as the black stripe (BS) 3 is provided in a region (outer peripheral portion) outside the display unit 2 of the front substrate 1. I have. The black frame 4 is preferably formed at the same time as the step of forming the black stripe (BS) 3. As shown in FIG. 2, the stripe pattern of the black stripe (BS) 3 formed in the display unit 2 is connected to the black frame 4 outside the display unit 2 created in the black stripe forming step.

In this embodiment, outside the display unit 2,
Even if an erroneous discharge occurs, light emission due to the erroneous discharge is shielded by the black frame 4, so that display quality is not impaired.

In the conventional apparatus, the front substrate 1 is in a panel state.
Although the black tape 18 is stuck on the outside of the display section 2 of the above, according to the present embodiment, the black frame 4 is formed at the same time in the step of forming the black stripe (BS) 3, so The work of attaching the black tape is not required, and the cost can be reduced.

Next, a second embodiment of the present invention will be described. FIG. 3 is a diagram showing the configuration of the front substrate according to the second embodiment of the present invention. FIG. 4 is a partially enlarged view showing a portion B in FIG. 3 in an enlarged manner.

A color filter (CCF) is provided on the front substrate 1.
When the color filter (CCF) 5 is formed, the upper and lower ends (both ends) of the color filter (CCF) 5 are
Formed on top of each other. That is, the black stripe (B
S) An overlapping portion 6 between the color filter (CCF) 5 and the color filter (CCF) 5 is provided.

A color filter (CCF) 5 is provided on the front substrate 1.
Is formed, when the both ends of the color filter ((CCF) 5 are matched with the ends of the black frame 4 provided outside the display unit 2, the color filter (CCF) 5 When the color filter (CCF) 5 is formed so as to be shifted vertically, the color filter (CCF) 5
A portion without 5 is formed, and the emission color of this portion is different from other portions and becomes defective.

Therefore, in this embodiment, the upper and lower ends (both ends) of the color filter (CCF) 5 are formed so as to overlap the black frame (4), so that when the color filter (CCF) 5 is formed, the black frame is formed. A margin can be provided for the vertical displacement with respect to (4), and as a result, the yield is improved. Overlap length is 50μ
It is desirable to set the distance from m to about 6 mm.

In the above embodiment, the black layer (BS) has been described as an example of the black layer. However, in the present invention, the black layer is not limited to a stripe shape, but may be a matrix shape or the like. It is applicable to various shapes.

[0034]

As described above, according to the present invention,
Deterioration of display quality due to erroneous discharge outside the display unit can be avoided and cost can be reduced.

The reason for this is that, in the present invention, a black frame made of the same material as the black matrix is provided in a region outside the display portion of the display front substrate, so that erroneous discharge occurs outside the display portion. Even so, the light emission due to the erroneous discharge is shielded by the black frame, and the display quality is prevented from being impaired, and the cost can be reduced by eliminating the need for the operation of attaching the black tape in a later process.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration of a color plasma display panel according to one embodiment of the present invention.

FIG. 2 is a partially enlarged view of a portion A in FIG.

FIG. 3 is a plan view showing a configuration of a color plasma display panel according to another embodiment of the present invention.

FIG. 4 is a partially enlarged view of a portion B in FIG. 3;

FIG. 5 is an exploded perspective view showing a configuration of a color plasma display panel.

FIG. 6 is a plan view showing a configuration of a conventional color plasma display panel.

FIG. 7 is a partially enlarged view of a portion C in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front board 2 Display part 3 Black stripe 4 Black frame 5 Color filter 6 Overlap part of a black stripe and a color filter 7 Scan electrode 8 Common electrode 9 Trace electrode 10, 11, 15 Dielectric layer 12 MgO layer 13 Back substrate 14 Data Electrode 16 Partition wall 17 Phosphor 18 Black tape

Claims (14)

[Claims] 1. A display device having a panel for performing display by discharging a gas sealed between a front substrate and a rear substrate which are arranged to face each other, wherein the front substrate is provided outside a display area of the front substrate. A display device comprising a black layer formed of the same member as a black filter layer formed thereon. 2. The display device according to claim 1, wherein the black layer formed in a region outside the display region of the front substrate surrounds a rectangular display region of the front substrate and has a frame shape. The display device according to claim 1. 3. A color filter formed on the front substrate, wherein the color filter has a portion overlapping the black layer provided in a region outside a display area of the front substrate. Display device. 4. A scanning electrode and a common electrode having a front substrate extending along one direction, a trace electrode provided on the scanning electrode and the common electrode, respectively, and the scanning electrode and the common electrode. A dielectric layer covering the electrode and the trace electrode; a black layer formed on the dielectric layer; a dielectric layer covering the black layer; and a protective layer covering the dielectric layer. A data electrode having a substrate extending along a direction orthogonal to the one direction; a dielectric layer covering the data electrode; a partition formed on the dielectric layer; A phosphor layer formed on the front substrate and the rear substrate, wherein the front substrate and the rear substrate are sealed to face each other. Surrounding the same material as the black layer In it becomes formed, and a frame-shaped black layer, a plasma display panel, characterized in that. 5. A scanning electrode and a common electrode having a front substrate extending along one direction, a trace electrode provided on the scanning electrode and the common electrode, respectively, and the scanning electrode and the common electrode. A dielectric layer covering the electrode and the trace electrode; a black layer and a color filter provided on the dielectric layer; a dielectric layer covering the black layer and the color filter; and protection covering the dielectric layer. A back electrode, wherein the back substrate is formed on the dielectric layer, the data electrode extending along a direction orthogonal to the one direction, a dielectric layer covering the data electrode, A partition wall, and a phosphor layer formed between the partition walls, wherein the front substrate and the rear substrate are sealed to face each other, and a region outside a display region of the front substrate. In addition, the display area A frame-shaped black layer formed of the same material as the black layer, wherein the color filter overlaps the frame-shaped black layer at least at one end thereof. Display panel. 6. The plasma display panel according to claim 4, wherein the black layer formed on the dielectric layer extends in a direction orthogonal to the one direction. . 7. The color filter overlaps the frame-shaped black layer at one end and at the other end opposite to the one end.
The plasma display panel according to claim 5, wherein: 8. A method for manufacturing a display panel having a panel for performing display by discharging a gas sealed between a front substrate and a rear substrate which are disposed to face each other, wherein a black filter layer is formed on the front substrate. And forming a black layer in a region outside a display region of the front substrate with the same member as the black filter layer. 9. The display device according to claim 1, wherein the black layer formed in a region outside the display region of the front substrate surrounds a rectangular display region of the front substrate and has a frame shape. 9. The method for manufacturing a display panel according to claim 8, wherein: 10. The method according to claim 8, wherein the color filter has a portion overlapping the black layer in a region outside the display region of the front substrate. 11. A scan electrode and a common electrode are arranged along one direction, a trace electrode is formed on the scan electrode and the common electrode, and the scan electrode, the common electrode, and the trace electrode are A front substrate, which is covered with a dielectric layer, a black layer is formed on the dielectric layer, and is covered with the dielectric layer and the protective layer, and a data electrode is orthogonal to the one direction. A rear substrate, wherein the data electrodes are covered with a dielectric layer, partition walls are formed on the dielectric layer, and a phosphor layer is formed between the partition walls. In the method of manufacturing a color plasma display panel in which the front substrate and the rear substrate are sealed to face each other, the step of forming the black layer includes the same member as the black layer, and a display region of the front substrate is formed. A black layer in the outer area A plasma display panel comprising a step of forming. 12. A scan electrode and a common electrode are arranged along one direction, a trace electrode is formed on the scan electrode and the common electrode, and the scan electrode, the common electrode, and the trace electrode are A black substrate and a color filter are formed on the dielectric layer; a front substrate covered with the dielectric layer and the protective layer; and a data electrode in the one direction. And a back substrate having the data electrode covered with a dielectric layer, a partition formed on the dielectric layer, and a phosphor layer formed between the partition. In the method for manufacturing a plasma display panel, wherein the front substrate and the rear substrate are sealed to face each other, the step of forming the black layer includes the same member as the black layer, and the display of the front substrate is performed. In the area outside the area Forming a black layer, wherein the step of forming the color filter is such that at least one end of the color filter overlaps the black layer formed in a region outside a display region of the front substrate. A method for manufacturing a plasma display panel, comprising a step of forming. 13. The black layer formed on the dielectric layer extends in a direction orthogonal to the one direction.
13. The method of manufacturing a plasma display panel according to claim 11, wherein: 14. The plasma display according to claim 12, wherein the color filter is formed so as to overlap the frame-shaped black layer at one end and the other end opposite to the one end. Panel manufacturing method.