JPH10275562A - Plasma display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve luminance by forming a magnetic layer so as to form a component of a magnetic field parallel to a longitudinal direction of a display electrode and setting it so as to be sequentially reversed-magnetic. SOLUTION: This display panel comprises a display side substrate, glass substrate 1, a band-shaped transparent electrode 2 formed on the glass substrate 1, a bus electrode 3 formed on the transparent electrode 2, a dielectric 4 and a protective layer (MgO) 5 formed on a display electrode 17 constituted by the transparent electrode 2 and the bus electrode 3. The display panel comprises a rear side substrate and a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a dielectric layer covering the address electrode 8, a magnetic bulkhead 14 formed so as to be positioned on the dielectric layer 7 between the address electrodes, and a phosphor 14 formed on a side face and a bottom thereof. A magnetic electrode on the gas discharge side of the magnetic bulkhead 15 is reversedmagnetic in order, a magnetic field in the gas discharge space is generated vertically on the side face of the magnetic bulkhead 14 and generated in parallel to the longitudinal direction of the display electrode 17, thereby a plasma density is enhanced during discharge between the display electrode pairs, and light emission strength is increased.

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.

[0002]

2. Description of the Related Art FIG. 1 (a) is a cross-sectional view of a main part of a conventional three-electrode surface discharge type AC plasma display panel, and FIG. 1 (b) is taken along line AA 'in FIG. 1 (a). FIG. X and Y parallel display electrodes 17 are formed as a pair on the glass substrate 1 on the display surface side, and an AC voltage is applied between the parallel electrodes to perform surface discharge. Each display electrode is a transparent electrode 2 made of ITO or the like and a bus electrode 3 made of Cr / Cu / Cr, Ag or the like.
And a dielectric layer 4 on these display electrodes 17.
And a protective film (MgO) 5 are provided. On the other hand, the address electrodes 8 are formed on the opposite rear glass substrate 9 in a direction orthogonal to the display electrodes 17. A dielectric layer 7 is provided on these address electrodes 8, and a partition 6 is formed thereon so as to be located between the address electrodes. R,
The G and B phosphors 16 are separately formed. A gas mixture of Ne and Xe is sealed in a discharge space between the two glass substrates, and ultraviolet light having a wavelength of 147 nm emitted from Xe during discharge excites the phosphor. The excited phosphors are R, G, B
The visible light is emitted from the surface side substrate, and is recognized as a full color. Such a panel structure
For example, it is described in JP-A-55-113237 and Fujitsu Technical Report (07.1996), page 339.

Japanese Patent Application Laid-Open No. 4-160733 discloses a dot matrix display type PDP in which a pair of glass substrates are arranged to face each other via a spacer, and the display cells are defined by intersections of electrodes facing each other in a grid. Describes a PDP in which the spacers are made of permanent magnets, the directions of the respective magnetic poles are aligned in one direction, and the display cells are sandwiched therebetween.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the brightness, which is a problem in achieving higher definition in the future, and to install a multi-stage filter or a panel provided to block harmful electromagnetic waves. It is an object of the present invention to improve the luminance for compensating for a decrease in luminance due to the installation of a transparent safety plate provided for the purpose of ensuring safety in the event of damage.

[0005]

In order to solve the above-mentioned problems, a PDP according to the present invention has a plurality of X-rays coated with a dielectric layer on one of substrates opposed to each other across a gas space.
In a plasma display panel in which display electrodes composed of electrodes and Y electrodes are arranged, and address electrodes, partition walls, and phosphors are formed on the other substrate in a direction perpendicular to the display electrodes, The magnetic layer is formed so as to form a component of a magnetic field, or the magnetic layer is formed in the gas space so as to form a component of a magnetic field parallel to a longitudinal direction of the display electrode. When a magnetic field perpendicular to the direction of motion is applied to charged particles during discharge, the charged particles are deflected by the Lorentz force and perform so-called cyclotron motion, increasing the number of collisions of the charged particles and increasing the plasma density. The emission intensity from the plasma increases, and the excitation of the phosphor increases. The arrangement of the magnetic layer of the present invention is as follows. That is, when a component of a magnetic field perpendicular to the substrate surface is formed, a conductive or non-conductive magnetic layer having a width smaller than the transparent electrode width is formed on at least one of the X and Y display electrode pairs on the display side substrate. On the rear substrate, as shown in FIGS. 2 to 4, a conductive or non-conductive magnetic film is formed adjacent to the lower part of the phosphor between the partition walls, or an address electrode on the glass substrate is formed. A non-conductive magnetic film is formed so as to cover, or a conductive or non-conductive magnetic film is formed adjacent to the dielectric layer covering the address electrodes. The magnetic poles are set so that the magnetic film on the display side substrate and the magnetic film on the back side substrate have opposite polarities. When forming a component of a magnetic field parallel to the longitudinal direction of the display electrode, as shown in FIGS. 5 and 6,
The entire partition is provided with magnetism so that the polarities are sequentially set to be opposite to each other, or a magnetic film is formed at a position intersecting the display electrode section at the top of the partition to set so that the polarities are sequentially set to be opposite to each other.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2A shows a PDP 1 according to an embodiment of the present invention.
FIG. 2B is a cross-sectional view of a main part of the structure shown in FIG.
It is sectional drawing which followed the A 'line. The display side substrate includes a glass substrate 1, a strip-shaped transparent electrode 2 formed on the glass substrate, a bus electrode 3 formed on the transparent electrode, a magnetic layer 10 formed on the bus electrode, the transparent electrode 2 and the bus electrode. 3 and magnetic layer 10
And a protective film (MgO) 5 formed on the display electrode 17 composed of The rear substrate is a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a dielectric layer 7 covering the address electrode 8, and a partition formed on the dielectric layer 7 so as to be located between the address electrodes. 6, a magnetic layer 11 formed on the side and bottom of the partition, and a phosphor 16 formed on the magnetic layer 11. The magnetic layers 10 and 11 may be either conductive or non-conductive. The magnetic poles of the magnetic layer 10 and the magnetic layer 11 on the gas discharge side have opposite polarities. When the magnetic layer 10 is the N pole and the magnetic layer 11 is the S pole, the magnetic field in the gas discharge space is from the display substrate to the rear substrate. When the magnetic layer 10 is an S pole and the magnetic layer 11 is an N pole,
The magnetic field in the gas discharge space is generated from the rear substrate side to the display substrate. By generating a magnetic field perpendicular to the substrate in this way, during discharge between display electrodes, charged particles are deflected by the magnetic field, the number of collisions increases, the plasma density increases, and the emission intensity increases.

FIG. 3A shows a PDP 2 according to an embodiment of the present invention.
FIG. 3B is a cross-sectional view of a main part of the structure of FIG.
It is sectional drawing which followed the A 'line. The structure of the display side substrate is shown in FIG.
Is the same as The rear substrate includes a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a magnetic layer 12 formed so as to cover the address electrode 8, a dielectric layer 7 formed on the magnetic layer 12, The partition 6 is formed on the layer 7 so as to be located between the address electrodes, and the phosphor 16 is formed on the side and bottom of the partition 6. The magnetic layer 10 may be either conductive or non-conductive, but the magnetic layer 12 must be non-conductive. The magnetic poles on the gas discharge side of the magnetic layer 10 and the magnetic layer 12 have opposite polarities. When the magnetic layer 10 is the N pole and the magnetic layer 12 is the S pole, the magnetic field in the gas discharge space is from the display substrate to the rear substrate. When the magnetic layer 10 has the S pole and the magnetic layer 12 has the N pole, the magnetic field in the gas discharge space is generated from the rear substrate side to the display substrate. By generating a magnetic field perpendicular to the substrate, the charged particles are deflected by the magnetic field during the discharge between the transparent electrode pairs, the number of collisions increases, the plasma density increases, and the emission intensity increases.

FIG. 4A shows a PDP 3 according to an embodiment of the present invention.
FIG. 4B is a cross-sectional view of a main part of the structure of FIG.
It is sectional drawing which followed the A 'line. The structure of the display side substrate is shown in FIG.
Is the same as The rear substrate includes a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a dielectric layer 7 formed so as to cover the address electrode 8, a magnetic layer 13 formed on the dielectric layer 7, The partition wall 6 is formed on the layer 13 so as to be located between the address electrodes, and the phosphor 16 is formed on the side and bottom of the partition wall 6. Magnetic layer 10,
13 may be either a conductor or a non-conductor. The magnetic poles on the gas discharge side of the magnetic layer 10 and the magnetic layer 13 have opposite polarities. When the magnetic layer 10 is the N pole and the magnetic layer 13 is the S pole, the magnetic field in the gas discharge space is from the display substrate to the rear substrate. When the magnetic layer 10 has the S pole and the magnetic layer 13 has the N pole, the magnetic field in the gas discharge space is generated from the rear substrate side to the display substrate. By generating a magnetic field perpendicular to the substrate, the charged particles are deflected by the magnetic field during the discharge between the transparent electrode pairs, the number of collisions increases, the plasma density increases, and the emission intensity increases.

FIG. 5A is a cross-sectional view of a main part of the structure of a PDP 4 according to one embodiment of the present invention, and FIG.
FIG. 3 is a cross-sectional view along the line. The display-side substrate includes a glass substrate 1, a strip-shaped transparent electrode 2 formed on the glass substrate 1, a bus electrode 3 formed on the transparent electrode 2, and a display electrode 17 composed of the transparent electrode 2 and the bus electrode 3. It comprises a dielectric layer 4 and a protective film (MgO) 5 formed thereon. The rear substrate is a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a dielectric layer 7 covering the address electrode 8, and a magnetic layer formed on the dielectric layer 7 so as to be located between the address electrodes. The partition 14 is composed of a phosphor 16 formed on the side and bottom of the magnetic partition 14. The magnetic partition 14 may be either a conductor or a non-conductor. The magnetic poles on the gas discharge side of the magnetic partition wall 14 are sequentially opposite in polarity, and the magnetic field in the gas discharge space is generated perpendicular to the side surface of the magnetic partition wall 14 and parallel to the longitudinal direction of the display electrode 17. By generating a magnetic field parallel to the longitudinal direction of the display electrode 17 as described above, the charged particles are deflected by the magnetic field during discharge between the display electrode pairs, the number of collisions increases, the plasma density increases, and the emission intensity increases. Increase.

FIG. 6A shows a PDP 5 according to an embodiment of the present invention.
It is. The configuration of the display side substrate is the same as that of FIG. The rear substrate is a glass substrate 9, an address electrode 8 formed on the glass substrate 9, a dielectric layer 7 covering the address electrode 8, and a partition formed on the dielectric layer 7 so as to be located between the address electrodes. 6, a display electrode on the top of the partition 6 and a magnetic layer 15 formed at a location corresponding to the gap between the display electrodes, and a phosphor 16 formed on the side and bottom of the partition 6 or the magnetic layer 15. The magnetic layer 15 may be either a conductor or a non-conductor. The magnetic poles on the gas discharge side of the magnetic layer 15 have opposite polarities sequentially, and a magnetic field in the gas discharge space is generated in parallel with the longitudinal direction of the display electrode 17. As described above, by generating a magnetic field parallel to the longitudinal direction of the display electrode 17, during discharge between the display electrodes, the charged particles are deflected by the magnetic field, the number of collisions increases, the plasma density increases, and the emission intensity increases. I do.

In this embodiment, the magnetic layer provided on the display-side substrate is formed on the bus electrode. However, it is not always necessary that the magnetic layer be formed on the display-side substrate. The material of the conductive magnetic layer is not particularly limited, for example,
Silicon steel, amorphous alloys, alnico alloys, rare earth cobalt alloys, and the like. The material of the non-conductive magnetic layer is not particularly limited. is there.

[0013]

According to the present invention, the opposed three-electrode surface discharge type A
In a C-type plasma display panel, display brightness can be increased.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a main part of a conventional three-electrode surface discharge type AC plasma display panel structure.

FIG. 2 is a cross-sectional view of a main part of a structure of an opposed three-electrode surface discharge type AC plasma display panel PDP1 according to one embodiment of the present invention.

FIG. 3 is a cross-sectional view of a main part of a structure of an opposed three-electrode surface discharge type AC plasma display panel PDP2 according to one embodiment of the present invention.

FIG. 4 is a cross-sectional view of a main part of the structure of an opposed three-electrode surface discharge type AC plasma display panel PDP3 according to one embodiment of the present invention.

FIG. 5 is a cross-sectional view of a main part of the structure of an opposed three-electrode surface discharge type AC plasma display panel PDP4 according to one embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part of a structure of an opposed three-electrode surface discharge type AC plasma display panel PDP5 according to one embodiment of the present invention.

[Explanation of symbols]

 1, 9: glass substrate, 2: transparent electrode, 3: bus electrode, 4, 7: dielectric layer, 5: protective film, 6: partition wall, 8: address electrode, 10, 11, 12, 13, 15: magnetic Layer 14: Magnetic partition wall 16: Phosphor 17: Display electrode

Claims (7)

[Claims] 1. A display electrode comprising a plurality of X electrodes and Y electrodes covered with a dielectric layer is arranged on one of substrates opposed to each other across a gas space, and the display electrode is arranged on the other substrate. A plasma display panel in which address electrodes, partition walls, and phosphors are formed in a direction perpendicular to the substrate, wherein a magnetic layer is formed in the gas space so as to form a component of a magnetic field perpendicular to the substrate surface. Display panel. 2. A magnetic body is provided adjacent to the phosphor, a magnetic layer is provided on at least one of the X electrode and the Y electrode, and a component of a magnetic field perpendicular to the substrate surface is provided in the gas space. The plasma display panel according to claim 1 formed. 3. A magnetic layer is provided adjacent to the address electrode, a magnetic layer is provided on at least one of the X electrode and the Y electrode, and a component of a magnetic field perpendicular to the substrate surface is provided in the gas space. The plasma display panel according to claim 1 formed. 4. A magnetic layer is provided adjacent to the dielectric layer covering the address electrode, the magnetic layer is provided on at least one of the X electrode and the Y electrode, and the magnetic layer is provided in the gas space. 2. The plasma display panel according to claim 1, wherein a component of a magnetic field perpendicular to the substrate surface is formed. 5. A display electrode comprising a plurality of X electrodes and a Y electrode covered with a dielectric layer is arranged on one of the substrates facing each other across a gas space, and the display electrode is arranged on the other substrate. A magnetic layer is formed in the gas space so as to form a component of a magnetic field parallel to the longitudinal direction of the display electrode in the gas space. Plasma display panel. 6. The plasma display panel according to claim 5, wherein said partition is formed of a magnetic material, and a component of a magnetic field parallel to a longitudinal direction of said display electrode is formed in said gas space. 7. A magnetic layer is formed at a position corresponding to the gap between the display electrode pair and the electrode pair on the top of the partition wall, and a magnetic field component parallel to a longitudinal direction of the display electrode is formed in the gas space. The plasma display panel according to claim 5, wherein