JPH0610597Y2 - Electrode structure of plasma display panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial Application Field" The present invention relates to an electrode structure of a plasma display (hereinafter, simply referred to as PDP) of a flat panel display device used for a color TV, a personal computer and the like.

"Prior Art" In a conventional PDP (especially AC type PDP), the discharge surface of the electrode has a constant discharge distance along the discharge surface, and a discharge voltage depending on the discharge distance is applied between the electrodes. Depending on whether or not to do so, it was turned on and off.

“Problems to be solved by the device” As described above, since the discharge distance was constant, when a halftone display was attempted in the light emitting display, the voltage applied between the electrodes using a complicated time axis modulation circuit etc. There was a problem in that it had to be controlled.

The present invention has been made in view of the above problems, and an object of the present invention is to obtain an electrode structure of a PDP capable of displaying halftone with a circuit having a simple structure.

"Means for Solving Problems" The present invention forms a discharge space 3 between a front plate 1 and a rear plate 2 facing each other, and a plurality of pairs of counter electrodes 4 and 5 facing each other through the discharge space 3. , 4 and 5, 4 and 5, ... One of the counter electrodes 4, 4, 4, ... Is connected to the electrode in the X-axis direction, and the other counter electrode 5, 5, 5 ,. Connect to the electrode of
In a plasma display panel in which light emission display is performed by discharge between predetermined counter electrodes 4 and 5, 4 and 5, 4 and 5, ... At least one of the counter electrodes 4 and 5 is insulated. a plurality of divided electrodes ₄ stacked through the body 61, ₄ is formed by _2, the plurality of divided electrodes ₄ 1, 4
₂ is characterized in that respectively have the front plate 1 and rear plate 2 of the plate surface perpendicular to a separate discharge surface 4 _1s, 4 _2a.

"Operation" Counter electrode 4 forming pixel (display cell) of PDP unit
Since at least one of the counter electrodes 4 and 5 is formed of a plurality of divided electrodes 4 ₁ and 4 ₂ stacked via the insulator 6, any one of the divided electrodes (for example, 4 ₁ , 4 one or both of ₂₎ the volume of the discharge space is changed depending on whether selecting the electrodes of the light emitting display, allowing the display of halftone.

"Embodiment" FIGS. 1 and 2 show an embodiment of the present invention.
In these figures, (1) and (2) are a front plate and a rear plate formed of a glass plate. On the inner surface of the back plate (2), a counter electrode (4) is connected to an electrode (not shown) in the X-axis direction via a discharge space (3), and is connected to an electrode (not shown) in the Y-axis direction. The counter electrodes (5) ... Are arranged. The counter electrodes (4) and (5) are stacked via insulators (6) and (7), respectively, and the respective discharge surfaces (4 _1s ) (4 _2s ),
(5 _1s ) (5 _2s ) are split electrodes perpendicular to the inner surface of the back plate (2)
It is formed by (4 ₁ ) (4 ₂ ), (5 ₁ ) (5 ₂ ).

In such a structure, when a discharge voltage for light emitting display is applied between the divided electrodes (4 ₁ ) and (5 ₁ ), discharge surfaces (4 _1s ) and (5 _1s ) are _generated as shown in FIG. It discharges between and emits light.
Further, when a discharge voltage for light emission display is applied between the divided electrodes (4 ₁ ) and (5 ₁ ) and between (4 ₂ ) and (5 ₂ ), the discharge surface (4 _1s ) And (5 _1s ), and between (4 _2s ) and (5 _2s ), and light emission is displayed.

As described above, the discharge volume that contributes to the luminescent display in FIG. 3 is approximately half of that in FIG. 4, so the luminescent display is a half-tone display. In addition, the divided electrodes (4 ₁ ) that become oblique discharge and
(5 ₂ ) or split electrodes (4 ₁ ) and (5 ₁ ) (5 ₂ ), which are discharges between (4 ₂ ) and (5 ₂ ), or a combination of parallel discharge and diagonal discharge,
(4 ₂ ) and (5 ₁ ) (5 ₂ ), (4 ₁ ) (4 ₂ ) and (5 ₁ ) or (4 ₁ ) (4 ₂ ) and (5 ₂ )
A halftone display can also be obtained by discharging during the period.

In the above-mentioned embodiment, each of the facing electrodes is formed of two divided electrodes having the same discharge surface area. However, the present invention is not limited to this, and the discharge surface area is weighted and / or It may be divided into three or more electrodes. For example, as shown in FIG. 5, the opposing electrodes (8) and (9) are connected to the discharge surface (8) through the insulators (10) (11), (12) (13), respectively.
_1s ) (8 _2s ) (8 _3s ), (9 _1s ) (9 _2s ) (9 _3s ), weighted 1: 2: 4 on the three divided electrodes (8 ₁ ) (8 ₂ ) (8 ₃ ), (9 ₁ ) (9 ₂ )
It may be formed by (9 ₃ ).

In the above embodiment, each of the facing electrodes is formed of a plurality of divided electrodes, but the present invention is not limited to this, and at least one of the facing electrodes may be formed of a plurality of divided electrodes. Good.

In the above-mentioned embodiment, a space is formed between the counter electrode and the front plate, which is convenient for evacuating the discharge space or filling the discharge gas. You may try to reduce the talk.

In the above embodiment, the opposing electrodes are arranged on the inner surface of the back plate, but the present invention is not limited to this. For example, one of the opposing electrodes may be on the inner surface of the front plate and the other may be the back plate. It may be arranged on the inner surface of each.

[Advantage of Device] As described above, the electrode structure of the PDP according to the present invention insulates at least one counter electrode (for example, 4) of the counter electrodes (for example, 4 and 5) forming the unit pixel (display cell). body plurality of divided electrodes (for example, 6) through the stacked (e.g. 4 _1, 4 ₂₎ so formed with, either (or both, for example 4 _1, 4 ₂₎ divided electrodes of the plurality of divided electrodes The volume of the discharge space changes depending on whether or not is selected as the electrode for the light emitting display, and a halftone display is possible. Therefore, as compared with the conventional electrode structure having a constant discharge volume (discharge area), the circuit configuration for displaying halftone can be simplified.

[Brief description of drawings]

1 and 2 show an embodiment of an electrode structure of a plasma display panel according to the present invention. FIG. 1 is a sectional view taken along the line AA of FIG. 2 and FIG. 2 is B of FIG. -B sectional view, FIG. 3 and FIG. 4 are sectional views for explaining the operation of the above embodiment, and FIG. 5 is a sectional view showing another embodiment. (1) …… Front plate, (2) …… Back plate, (3) …… Discharge space, (4)
(5) (8) (9) …… Counter electrode, (4 ₁ ) (4 ₂ ) (5 ₁ ) (5 ₂ ) (8 ₁ ) (8 ₂ ).
(8 ₃ ) (9 ₁ ) (9 ₂ ) (9 ₃ ) ...... split electrode, (4 _{1 s} ) (4 _{2 s} ) (5 _{1 s} ) (5 _{2 s} )
(8 _1s ) (8 _2s ) (8 _3s ) (9 _1s ) (9 _2s ) (9 _3s ) ... Discharge surface.

Claims (3)

[Scope of utility model registration request] 1. A discharge space is formed between a front plate and a back plate facing each other, and one counter electrode group of a plurality of pairs of counter electrodes facing each other through the discharge space is connected to an electrode in the X-axis direction, and the other counter electrode group is connected. In a plasma display panel in which a counter electrode group is connected to electrodes in the Y-axis direction and light emission display is performed by discharge between predetermined counter electrodes among the plurality of pairs of counter electrodes, At least one counter electrode of the counter electrodes forming each pair is formed by a plurality of divided electrodes stacked via an insulator, and the plurality of divided electrodes are respectively perpendicular to the plate surfaces of the front plate and the back plate. An electrode structure for a plasma display panel, which has individual discharge surfaces. 2. Counter electrodes facing each other via a discharge space are both provided on the inner surface of the back plate of the plasma display panel so as to face each other via a discharge space, and a plurality of divisions stacked via an insulator. The electrode structure of the plasma display panel according to claim 1, wherein the electrode structure is formed of electrodes. 3. The electrode structure of a plasma display panel according to claim 1 or 2, wherein the discharge surfaces of the plurality of divided electrodes are weighted in their areas.