Plasma display device with auxiliary partition walls, corrugated, tiered and pigmented walls

• US 6,008,582 A
• Filed: 01/22/1998
• Issued: 12/28/1999
• Est. Priority Date: 01/27/1997
• Status: Expired due to Term

• Current Assignee: Dai Nippon Printing Company Limited
• Original Assignee: Dai Nippon Printing Company Limited
• Inventors: Tanabe, Hisao, Asano, Masaaki, Tsuruoka, Yoshiaki
• Primary Examiner(s): Patel, Vip
• Assistant Examiner(s): GERIKE, MATTHEW J
• Application Number:
  US09/012,087
• Time in Patent Office: 705 Days
• Field of Search: 313/581, 313/590, 313/605, 313/606, 313/609, 313/610, 313/620, 313/492, 313/584, 313/585, 313/586, 313/587, 313/612, 313/621
• US Class Current: 313/582
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/36 Spacers, barriers, ribs, partitions or the like
• CPC Class Codes: H01J 2211/363 Cross section of the spacers
• CPC Class Codes: H01J 2211/366 characterized by the material
• CPC Class Codes: H01J 2211/444 Means for improving contrast or colour purity, e.g. black matrix or light shielding means

Abstract

A plasma display panel has a front plate (10) and a back plate (3) disposed in parallel and opposite to each other, and spaced a predetermined distance apart from each other by partition walls (1a, 1b, 1c). The partition walls (1a, 1b, 1c) define discharge spaces (2) each having a plurality of discharge cells. Phosphor layers (9) are formed on surfaces of the discharge spaces (2). The partition walls (1a, 1b, 1c) is formed of a material containing at least one of red, green and blue pigments. Since the partition walls (1a, 1b, 1c) are capable of luminance adjustment and white balance adjustment, the plasma display panel does not need any additional manufacturing processes and can be fabricated at a relatively low cost.

Claims

1. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein the phosphor layers are red phosphor layers containing a red phosphor substance, green phosphor layers containing a green phosphor substance, and blue phosphor layers containing a blue phosphor substance, and the partition walls contain at least one of a red pigment, a green pigment and a blue pigment.

2. The plasma display panel according to claim 1, wherein

a black layer is provided on a top portion of each partition wall on the side of the front plate.

3. The plasma display panel according to claim 1, wherein

the partition walls further contain a white pigment.

4. The plasma display panel according to claim 3, wherein

the partition walls further contain glass frit, and the partition walls have a white pigment content in the range of 5 to 20 parts by weight with respect to a glass frit content of 100 parts by weight.

5. The plasma display panel according to claim 1, wherein

the partition walls contain an appropriate amount of the red pigment, an appropriate amount of the green pigment and an appropriate amount of the blue pigment.

6. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein a plurality auxiliary partition walls are extended perpendicularly to the partition walls between the adjacent partition walls so as to divide the discharge spaces into separate discharge spaces.

7. The plasma display panel according to claim 6, wherein

a plurality of bus electrodes are formed on the front plate, a plurality of address electrodes are formed on the back plate and perpendicular to the plurality of bus electrodes, and the separate discharge spaces correspond to spatial intersections formed by the bus electrodes and the address electrodes, respectively.

8. The plasma display panel according to claim 6, wherein

the auxiliary partition walls have a cross section in a plane parallel to the partition walls diverging toward the back plate.

9. The plasma display panel according to claim 6, wherein the auxiliary partition walls have a height in the range of 1/2 to 5/6 of that of the partition walls.

10. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein the widths of corresponding portions of the adjacent partition walls are reduced relative to that of other portions of the same to form pairs of narrow sections in the adjacent partition walls.

11. The plasma display panel according to claim 10,

wherein a plurality of bus electrodes are formed on the front plate, a plurality of address electrodes are formed on the back plate and perpendicular to the plurality of bus electrodes, and the pairs of narrow sections correspond to spatial intersections formed by the bus electrodes and the address electrodes, respectively.

12. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein the partition walls have corrugated side surfaces.

13. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein the partition walls have a cross section in a plane perpendicular thereto having a shape diverging toward a back plate; and

wherein;

the partition walls have a width varying stepwise.

14. A plasma display panel comprising:

a front plate;

a back plate disposed in parallel and opposite to the front plate;

a plurality of parallel partition walls extended between the front and the back plate and defining discharge spaces between the adjacent partition walls; and

phosphor layers respectively formed in the discharge spaces;

wherein gaps are formed between the partition walls and the front or the back plate.

15. The plasma display panel according to claim 14, wherein

the gaps have a thickness in the range of 3 to 20 μ

m.

16. The plasma display panel according to claim 14, wherein

the partition walls are provided with protrusions to form the gaps between the partition walls and the front or the back plate.