JPH01146224A - Plasma display panel - Google Patents

Abstract

PURPOSE:To improve the luminous brightness and the luminous efficiency by forming partition walls to form discharge spaces of discharge cell groups for display with an electrode body of a formation in which discharge spaces are engraved on a conductor plate responding to discharge cell groups respectively. CONSTITUTION:An electrode body 6 is formed by a thick film printing method or an etching of a thin metal plate, and composed in a form to engrave holes of discharge spaces 7... on a conductor plate for discharge cell groups S, S,... respectively. When scanning signals are applied to electrodes Ym, Ym+1,... in order, the discharge maintaining voltage is applied to the electrode body 6, and the write signals are applied to write electrodes Wl, Wl+1,... respectively, source ignition discharges are carried out in a specific timing between Wl+2 aid Ym or Ym+1. Then, discharges for display are generated between Ym and Ym+1, and between the electrode body 6 and Ym, Ym+1, and by the generated ultraviolet rays, the responding phosphor layer 3 radiates. Since the side surfaces of the discharge spaces 7 of the electrode body 6 act as partitions of the discharge cells S concurrently, while being conductor surfaces, in this case, they never absorb the charged particles generated in the discharges, and the luminous brightness and the luminous efficiency can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a surface discharge plasma display panel (hereinafter simply referred to as FDP) that can easily improve luminance and luminous efficiency. .

[Prior Art] A conventional surface discharge type FDP has a front plate and a back plate facing each other, and a partition made of a dielectric material to form a discharge space for a group of discharge cells for display on the opposite side of the front plate. A wall is provided, and discharge electrodes whose discharge surfaces are parallel to the surface of the back plate are provided facing each other on the opposing surface side of the back plate, and discharge for display is performed between the facing discharge electrodes.

[Problems to be Solved by the Invention] However, in the conventional surface discharge type PDP as described above, the partition wall for preventing color crosstalk etc. was formed of a dielectric material. There is a problem in that the charged particles generated during discharge are absorbed, and the ions generated during discharge damage the phosphor layer, making it impossible to improve luminance and luminous efficiency.

The present invention was made in view of the above-mentioned problems, and is a surface discharge type F that can easily improve luminance brightness and luminous efficiency.
The purpose is to provide DP.

[Means for Solving the Problems] The present invention provides a front plate and a back plate facing each other, and a partition wall forming a discharge space of a display discharge cell group on the opposite side of the front plate, In a plasma display panel, discharging electrodes are provided on the opposing surface side of the back plate, and discharge electrodes facing each other for display discharge are provided, each discharge surface being parallel to the surface of the back plate, the partition wall being a conductive plate for discharging. It is characterized in that each discharge space of a cell group is formed by a perforated electrode body.

[Function] The partition wall forming the display discharge cell group is formed of an electrode body having a conductor plate with a discharge space for each of the discharge cell groups. Does not absorb generated charged particles. Furthermore, by always applying a positive potential to this electrode body, it is possible to control the amount of ions generated during discharge to collide with the phosphor layer.

[Example] Figures 1, 2, and 3 show an example of the present invention. They are a face plate and a back plate as a substrate. A phosphor layer (3) is provided on the opposite surface side of the front plate (1).
) is applied. On the opposite surface side of the back plate (2), write electrodes WQ, WQ, etc. are formed by printing a conductive paste or by thin film deposition.
... is provided. This write voltage 1fiV/Q,
A first dielectric layer (4) formed by printing a glass insulator paste is provided on the upper surface of WQ, . Multiple rows of Ym, Ym, 0,... electrodes are provided as discharge electrodes formed by printing conductor paste, and these Ym, Ym, 4,... electrodes are arranged in two adjacent rows. are formed in a double-sided electrode type spanning the discharge cell groups S, S, . , and are formed so as to intersect with the write electrodes WQ, WQ, . . . . Said first dielectric WJ=
(4) and Ym, Ym, I...The upper surface of the electrode is covered with a second dielectric layer (printed with glass insulator paste).
5) is provided, and on the upper surface of this second dielectric layer (5),
Discharge spaces of display discharge cell groups S, S,... (7)
(7) Electrode body (6) as a partition wall forming...
is provided. The electrode body (6) is formed by a thick film printing method or a thin metal plate etching method, and is formed by forming discharge spaces (7) in each of the discharge cell groups S, S, . . . on a conductor plate.
)... is formed in a shape with holes drilled therein.

The peripheries of the front plate (1) and the back plate (2) are sealed by a side plate (not shown), and an FDP is formed by filling discharge gas after evacuation.

When driving the FDP formed in this way, Ym
, Ym+... The scan signal is sequentially applied to the electrodes, the discharge sustaining voltage is applied to the electrode body (6), and the write electrodes WQ, W'l+
When a write signal is applied to each of z, . . . in a predetermined discharge cell S, at a predetermined timing.

For example, a pilot discharge occurs between WQl and Ym or Yll, and then between Ym and Ym+□, between the electrode body (6) and Yll.
A display discharge occurs between Y m, . At this time, the side surface of the discharge space (7) of the electrode body (6) also serves as a partition for the discharge cell S, and since it is a conductive surface, it does not absorb charged particles generated during discharge, thereby improving luminance and luminous efficiency. Can be done. In addition, the electrode body (6)
By always maintaining a positive potential, the amount of ions generated during discharge collide with the phosphor layer (3) is reduced, thereby reducing damage to the phosphor layer (3) and improving luminous brightness and luminous efficiency. be able to. Furthermore, the electrode body (6) and Ym, Ym.

, one (for example, Ym) is used as an anode, and the other (for example, Y
By performing a discharge using the electrodes m, , ) as a cathode, concentration of the electric field occurs, and it is expected that the discharge starting voltage will be lowered, the discharge starting delay time will be shortened, and the luminance and luminous efficiency will be further improved.

In the above embodiment, Ym, Ym, I... for display discharge.
The electrodes are connected to two adjacent rows of discharge cells S, S,...
・The discharge space of the electrode body as a partition wall is formed in a staggered lattice shape, and the electrodes for applying the write signal of a certain row are WQ, WQ+2,
When WQ y..., apply the write signal for the next row', ilt pole is WQ, W Q , , WQ6 .・・・
・Although the present invention is not limited to this, for example, as shown in FIGS. 4 and 5, Ym, a and Y mgb, Y m+>ya and Ym for one display discharge, and 1. b, . . . are provided for each row of the discharge cell groups S, S, . The electrode for applying the write signal is W
Q, WQ-x, WQ-z, . . . In this figure 4 and figure 5,
The voltage applied to the electrode body (6a) is +■X as shown in FIG. 6(a), and Y m, a+ Ym, b, Ym+t
, a, Ym, □, and b electrodes as pulse voltages as shown in FIG.・S, S, ... adjacent display discharge electrodes (for example, Y
When the applied voltages of m, b and Ym, □ta are in phase, the voltage between these electrodes (for example, Ym, b and Ym, □, a
power loss due to capacitance (between) can be reduced.

[Effects of the Invention] As described above, the FDP according to the present invention has a partition wall that forms a discharge space for a group of discharge cells for one display, and an electrode having a shape in which a conductor plate is formed with a discharge space for each group of discharge cells. Since the partition wall is made of solid material, it is easy to create the partition wall, and the charged particles generated during discharge are not absorbed, making it possible to improve luminance and luminous efficiency. Furthermore, by always keeping the electrode body at a positive potential, it is possible to control the amount of ions generated during discharge that collide with the phosphor layer, thereby reducing damage to the phosphor layer, thereby improving luminance brightness and luminous efficiency. Improvements can be made.

Furthermore, the electrode body and display discharge electrode (for example, Ym and Ym
, , ) (for example, Ym) as an anode (plus),
By performing a discharge using the other side (for example, Ym+□) as a cathode (minus), the electric field is concentrated, and it is possible to lower the discharge start voltage and shorten the discharge start delay time.
Further improvements in luminescence brightness and luminous efficiency can be expected.

[Brief explanation of the drawing]

1 to 3 show one embodiment of the present invention, and FIG. 1 is B-B of FIG.
2 is a sectional view taken along the line A-A in FIG. 1, FIG. 3 is an exploded perspective view of a unit discharge cell with the first and second dielectrics omitted, and FIGS. 4 and 5. 4 shows another embodiment, and FIG. 4 shows a line D-D in FIG.
5 is a sectional view taken along the line CC in FIG. 4, and FIG. 6 is a drive voltage waveform diagram in the embodiment shown in FIGS. 4 and 5. (1)...Front plate, (2)...Back plate, (6) (6a
)... Electrode body (partition wall), (7) (7a) -...
Discharge space, Ym, Ym, a, Ym. b, Ym, , Ym,, la+ Ym41. b,・
...Discharge electrode, WQ-WQ, WQ, 2...Writing electrode, S...Discharge cell. Applicant Fujitsu General Ltd.

Claims (1)

[Claims] (1) A front plate and a back plate are provided opposite to each other, a partition wall for forming a discharge space of a display discharge cell group is provided on the opposite side of the front plate, and a partition wall is provided on the opposite side of the back plate to form a discharge space for a group of discharge cells for display. In a plasma display panel comprising discharge electrodes each having a discharge surface parallel to the rear plate surface, the discharge space for each discharge cell group is bored in the partition wall and the conductor plate. A plasma display panel characterized by being formed of shaped electrode bodies.