JP2003308782A - Plasma display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plasma display panel for generating a stable discharge in a display part by reducing an erroneous discharge caused in a non-display region near a display region part. <P>SOLUTION: A front substrate 3 and a back substrate 4 are oppoingly arranged. Perpendicularly to scanning electrodes 5 and sustaining electrodes 6 arranged on the front substrate 3, data electrodes arranged on the back substrate 4 are led up at one end along the panel to form data electrode groups 10A connected to a data electrode drive circuit. A dummy electrode 21 without data input thereto is formed near the data electrodes. <P>COPYRIGHT: (C)2004,JPO

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 used for displaying images such as a television receiver and an advertisement display board.

[0002]

2. Description of the Related Art There are various types of plasma display panels. As a concrete conventional plasma display panel (hereinafter, referred to as a panel), an AC type plasma display panel is shown in FIGS. Figure 7
Shows details of the non-display area portion and the area B of the terminal portion in FIG.

In this panel, a front substrate 3 and a rear substrate 4 are sealed by a frit seal 2, and a discharge space 14 is maintained by a partition wall 17 formed on the rear substrate 4, and helium is contained in the discharge space. , A mixed gas of at least one kind of rare gas of neon and argon and xenon is filled.

The front substrate 3 made of a transparent material such as glass.
The electrode groups of the scan electrodes 5 and the sustain electrodes 6 are arranged in parallel on the upper side, and the respective electrode groups are drawn out to the left and right of the panel to form the scan electrode terminal group 5A and the sustain electrode terminal group 6A, and scan It is connected to the drive circuit 7 and the sustain drive circuit 8.

On the rear substrate 4, stripe-shaped data electrodes 9 are orthogonal to the scan electrodes 5 and the sustain electrodes 6.
A data electrode group 9A composed of
Are drawn out from above and below the panel, and are connected to the data electrode drive circuit 11 from the upper data electrode terminal group 10A. The lower data electrode terminal group 10B, which is not connected to the data electrode driving circuit 11, is made of resin 1 for insulation and moisture prevention.
It is sealed with 2.

More specifically, as shown in FIG. 7, of the front substrate 3 and the rear substrate 4 facing each other with the discharge space 14 in between, the front substrate 3 made of a transparent material such as glass is used.
A pair of stripe-shaped scan electrodes 5 and sustain electrodes 6 covered with a dielectric layer 15 and a protective film layer 16 are provided inside
And electrode groups are arranged in parallel.

Inside the rear substrate 4, stripe-shaped data electrodes 9 orthogonal to the scan electrodes 5 and the sustain electrodes 6 are provided.
Striped barrier ribs 17 are arranged in parallel with each other at regular intervals so as to be isolated from each other and to form the discharge space 14.

A phosphor group consisting of phosphors 19 that emits blue, green or red light is provided in a section partitioned by the partition wall 17 on the surface of the rear substrate 4, and the lower layer thereof is shown in FIGS. 8 and 9. As described above, the data electrode group of the data electrode 9 is additionally provided, and the data electrode 9 is covered with the underlying dielectric layer 18.

In the write operation, when a positive write pulse voltage Vd is applied to the data electrode 9 and a negative scan pulse voltage Vsc is applied to the scan electrode 5, a write discharge occurs in the discharge space 14 and the scan electrode 5 is discharged. Positive charges are accumulated on the surface of the protective film layer 16. After that, when a negative sustain pulse is applied to the sustain electrodes 6 at the beginning of the sustain operation,
The sustain discharge is sustained by alternately applying the negative sustain pulse voltage Vs to the scan electrode 5 and the sustain electrode 6. Finally, by applying a negative erase pulse voltage Ve to sustain electrode 6, this sustain discharge is stopped.

At this time, a non-display area 20 that does not participate in the display exists between the display area 13 of the panel and the frit seal 2, as shown in FIG. This hidden area 2
Similar to the discharge space 14, 0 is filled with a mixed gas of at least one kind of rare gas of helium, neon, and argon and xenon.

[0011]

In such a conventional panel, in the non-display area 20 in the vicinity of the display area section 13, the uncontrollable accidental influence due to the influence of the display area to which the voltage is applied and the electrode lead-out section is caused. Erroneous discharge occurs, the phosphor 19 protruding from the display area 13 slightly emits light, or when neon is included in the enclosed gas, a neon light emission of orange color is generated although the amount is very small. Display area 1
There is a problem leaking to 3.

If a data electrode terminal group that is not connected to the data electrode driving circuit 11 is exposed, if a material having a high migration property such as Ag is used as the electrode material,
It is necessary to coat the resin 12 having high insulation and moisture resistance to hermetically seal it.

An object of the present invention is to provide a plasma display panel capable of reducing erroneous discharges generated in the non-display area near the display area 13 and generating stable discharges in the display section. .

Another object is to eliminate resin encapsulation of the data electrode terminal group on the non-connection side.

[0015]

In a plasma display panel according to claim 1 of the present invention, a front substrate and a rear substrate are provided so as to face each other, and a scanning electrode and a sustain electrode provided on the front substrate. One end of the data electrode provided on the back substrate is drawn to one side in the vertical direction of the panel so as to be orthogonal to the data electrode group to form a data electrode group connected to the data electrode driving circuit. It is characterized in that a dummy electrode which is not input is formed.

In the plasma display panel according to claim 2 of the present invention, the front substrate and the rear substrate are provided so as to face each other, and a plurality of partition walls are provided between the front substrate and the rear substrate. A plurality of discharge cells in a region surrounded by the front substrate, the back substrate and the barrier ribs,
Stripe-shaped scan electrodes and sustain electrodes are formed on the front substrate in each of the discharge cells, and phosphor groups that emit blue, green, and red light are formed on the surface of the rear substrate so as to be orthogonal to the scan electrodes and sustain electrodes. In an AC type plasma display panel in which stripe-shaped data electrodes are provided under the phosphor layer so as to be orthogonal to the scan electrodes and the sustain electrodes, the scan electrodes and the sustain electrodes are led out to the left and right of the panel and used in a scan driving circuit. A group of scan electrode terminals connected to each other and a group of sustain electrode terminals connected to a sustain drive circuit are formed, and one end of the data electrode is drawn to one side in the vertical direction of the panel to form a data electrode group connected to the data electrode drive circuit. The data electrode is formed so as to be close to at least a part of the other end of the data electrode, the right end of the data electrode group, and the data electrode at the left end of the data electrode group. Characterized in that an electrode was formed.

With this structure, accidental erroneous discharges that occur in the non-display area are suppressed by the dummy data electrodes, and the data electrode terminal group on the non-connection side is eliminated. Can be omitted.

A plasma display panel according to a third aspect of the present invention is characterized in that, in the second aspect, the dummy data electrode surrounds a periphery of a non-display area of the panel and is made common.

A plasma display panel according to a fourth aspect of the present invention is the plasma display panel according to the second aspect, wherein the dummy data electrode surrounds the periphery of the non-display area of the panel and is shared to be connected to a reference potential having a stable potential. It is characterized by

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIG.
~ It demonstrates based on FIG. The panel of the present invention is different from the conventional example in that the dummy electrode 21 is formed so as to surround the end portion of the data electrode group as shown in FIG. FIG. 2 shows the details of the area A in FIG. 1 on the lower side of the panel in which a data electrode terminal group for connecting the data electrode group 9A to the data electrode driving circuit 11 is not provided.

As shown in FIGS. 1 and 2, the front substrate 3 and the rear substrate 4 are sealed by the frit seal 2, and the rear substrate 4 is sealed.
The discharge space 14 is maintained by the partition wall 17 formed on the upper part of the space, and the mixed gas of at least one rare gas of helium, neon, and argon and xenon is sealed in the discharge space.

On the surface substrate 3 made of a transparent material such as glass, the electrode groups of the scan electrodes 5 and the sustain electrodes 6 are arranged in parallel, and the respective electrode groups are drawn out to the left and right of the panel, and the scan electrode terminal group. 5A and sustain electrode terminal group 6A are formed and connected to the scan drive circuit 7 and the sustain drive circuit 8.

As shown in FIG. 3, a data electrode group 9A composed of stripe-shaped data electrodes 9 is arranged on the rear substrate 4 orthogonally to the scanning electrodes 5 and the sustain electrodes 6, and the electrode groups are arranged. In the case of FIG. 1, one of 9A is connected to the data electrode driving circuit 11 from the upper data electrode terminal group 10A.
It is connected to the. The other end is located inside the discharge space 14 sealed by the frit seal 2 as shown in FIG. 4, and is formed up to the end of the display area portion 13.

Dummy electrodes 21 are formed on the outermost left and right sides of the data electrode group 9A. This dummy electrode 21 is shown in FIG.
As shown in FIG. 3, the dummy electrode 21 is formed on the rear substrate 4, and the dummy electrode 21 at any position is covered with the underlying dielectric layer 18.

Specifically, the left end 21L of the dummy electrode 21
Is led out to the left end of the data electrode terminal group 10A on the upper side of the panel, and the data electrode 9 at the right end of the data electrode group 9A is
To the right end of the data electrode group 9A in the vicinity of the other end of the data electrode 9 as shown in FIG. 4, and further to the left end of the data electrode group 9A. The right end 21R of the dummy electrode 21 is drawn out to the right end of the data electrode terminal group 10A on the upper side of the panel in a shape that extends upward close to the data electrode 9 and surrounds the outer periphery of the data electrode group 9A. .

As shown in FIG. 2, of the front substrate 3 and the rear substrate 4 facing each other with the discharge space 14 in between, the dielectric layer 1 is formed on the front substrate 3 made of a transparent material such as glass.
5 and a pair of stripe-shaped scan electrodes 5 and sustain electrodes 6 covered with a protective film layer 16 are arranged in parallel, and on the rear substrate 4, as shown in FIG. Stripe-shaped barrier ribs 17 are arranged in parallel so as to separate the stripe-shaped data electrodes 9 orthogonally to the electrode 5 group and the sustain electrode 6 group and to form the discharge space 14.

The data electrodes 9 are the base dielectric layer 1
It is covered with 8. Phosphors 19 are formed on the partitions 17. The front plate 3 and the rear substrate 4 are joined and sealed by a frit seal 2. The data dummy electrode 21 formed on the rear substrate 4 is formed so as to surround the lower portion of the screen as shown in FIG.

The light emitting display operation of the panel 1 of the present invention is performed in the same manner as the above-mentioned conventional panel. In the present embodiment, since the data dummy electrode 21 is attached to the non-display area portion 20, when the scan pulse voltage Vsc and the sustain pulse voltage Vs are alternately applied to the scan electrode 5 and the sustain electrode 6, the non-display is performed. Electric discharges are rarely generated in the region 20 as well, but are suppressed when the dummy electrode 21 is present on the opposing rear substrate 4. Further, if the data dummy electrode is fixed to a predetermined potential, for example, the DC ground potential, the suppression effect is further increased.

In the plasma display panel according to the embodiment of the present invention, since the non-connection data electrode terminal group 10B is not provided, no extra resin coating for insulation or moisture prevention is required in that portion, and the material and process can be reduced. It will be possible.

The dummy electrode 21 of the above-described embodiment has a shape close to the data electrode 9 at the right end of the data electrode group 9A, the other end of the data electrode 9 and the data electrode 9 at the left end of the data electrode group 9A. By forming the dummy electrode 21 which is not input with data, in proximity to at least a part of the other end of the data electrode 9, the right end of the data electrode group 9A and the data electrode 9 at the left end of the data electrode group 9A, It is possible to reduce the occurrence of discharge in the display area portion 20 as compared with the conventional case.

[0031]

As described above, according to the present invention, the front substrate and the rear substrate are provided facing each other, and a plurality of partition walls are provided between the front substrate and the rear substrate. A plurality of discharge cells are provided in a region surrounded by the front substrate, the back substrate, and the barrier ribs, and stripe-shaped scan electrodes and sustain electrodes are formed on the front substrate in each of the discharge cells, and are orthogonal to the scan electrodes. Thus, on the surface of the rear substrate, an AC in which a group of phosphors that emit blue, green, and red, and stripe-shaped data electrodes that are orthogonal to the scan electrodes and the sustain electrodes are provided under each phosphor layer. -Type plasma display panel, since a dummy electrode that does not receive data is formed in the vicinity of the data electrode, it is possible to suppress accidental discharge in the non-display area and to provide good display quality. It is possible to provide a plasma display panel.

[Brief description of drawings]

FIG. 1 is a plan view of an AC plasma display panel of the present invention.

FIG. 2 is a perspective view showing details of area A in FIG.

FIG. 3 is a sectional view taken along line XX ′ in FIG.

FIG. 4 is the area A on the rear substrate 4 side of the embodiment.
Top view of

5 is a sectional view taken along the line YY ′ of FIG.

FIG. 6 is a plan view of a conventional AC type plasma display panel.

FIG. 7 is a perspective view showing details of area B in FIG.

8 is a sectional view taken along line XX ′ in FIG.

FIG. 9 is a plan view of the area B on the rear substrate 4 side of the conventional example.

[Explanation of symbols]

2 frit seal 3 front substrate 4 back substrate 5 scanning electrodes 5A scanning electrode terminal group 6 sustaining electrodes 6A sustain electrode terminal group 7 Scan drive circuit 8 Sustaining drive circuit 9 Data electrode 9A data electrode group 10A data electrode terminal group 11 Data electrode drive circuit 13 panel display area 14 discharge space 15 Dielectric layer 16 Protective film layer 17 partitions 18 Base dielectric layer 19 phosphor 20 hidden area 21 Dummy electrode 21L Left end of dummy electrode 21 21R Right end of dummy electrode 21

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Koji Aoto             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 5C040 FA01 FA04 GB03 GB14 GB20                       GK01 MA17 MA20

Claims (4)

[Claims] 1. A front substrate and a back substrate are provided so as to face each other, and a plurality of partition walls are provided between the front substrate and the back substrate, and the front substrate, the back substrate and the partition walls are provided. Having a plurality of discharge cells in the area surrounded by, on the surface substrate in each of the discharge cells, stripe-shaped scan electrodes and sustain electrodes are formed, so as to be orthogonal to it, on the surface of the back substrate, A group of phosphors emitting blue, green, and red and stripe-shaped data electrodes are provided under the respective phosphor layers so as to be orthogonal to the scan electrodes and the sustain electrodes.
A C-type plasma display panel, wherein a dummy electrode is formed adjacent to the data electrode to prevent data from being input. 2. A front substrate and a back substrate are provided so as to face each other, and a plurality of partition walls are provided between the front substrate and the back substrate, and the front substrate, the back substrate and the partition walls are provided. Having a plurality of discharge cells in the area surrounded by, on the surface substrate in each of the discharge cells, stripe-shaped scan electrodes and sustain electrodes are formed, so as to be orthogonal to it, on the surface of the back substrate, A group of phosphors emitting blue, green, and red and stripe-shaped data electrodes are provided under the respective phosphor layers so as to be orthogonal to the scan electrodes and the sustain electrodes.
In the C-type plasma display panel, the scan electrodes and the sustain electrodes extend to the left and right of the panel to form a scan electrode terminal group connected to a scan driving circuit and a sustain electrode terminal group connected to a sustain driving circuit. One end of the electrode is pulled out to one side in the vertical direction of the panel to form a data electrode group connected to the data electrode driving circuit, and the other end of the data electrode, the right end of the data electrode group and the data electrode at the left end of the data electrode group are formed. A plasma display panel in which a dummy electrode is formed in the vicinity of at least a part thereof to prevent data input. 3. The plasma display panel according to claim 2, wherein the dummy data electrode surrounds the periphery of the non-display area of the panel and is made common. 4. The plasma display panel according to claim 2, wherein the dummy data electrode surrounds the periphery of the non-display area of the panel and is commonly connected to a reference potential having a stable potential.