Plasma display panel

• US 6,657,386 B2
• Filed: 05/24/2002
• Issued: 12/02/2003
• Est. Priority Date: 12/28/1998
• Status: Expired due to Fees

• Current Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Original Assignee: Pioneer Corporation
• Inventors: Masuda, Kosuke, Taniguchi, Hitoshi, Sakai, Tatsuro, Amemiya, Kimio, Koshio, Chiharu, Komaki, Toshihiro
• Primary Examiner(s): Patel, Ashok
• Application Number:
  US10/153,741
• Publication Number:
  US 20020140350A1
• Time in Patent Office: 557 Days
• Field of Search: 313/584, 313/585, 313/586, 313/587, 313/283, 345/41, 345/60
• US Class Current: 313/586
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/24 Sustain electrodes or scan electrodes
• CPC Class Codes: H01J 11/32 Disposition of the electrodes
• CPC Class Codes: H01J 11/36 Spacers, barriers, ribs, partitions or the like
• CPC Class Codes: H01J 11/38 Dielectric or insulating layers
• CPC Class Codes: H01J 2211/245 Shape, e.g. cross section or pattern
• CPC Class Codes: H01J 2211/265 Shape, e.g. cross section or pattern
• CPC Class Codes: H01J 2211/323 Mutual disposition of electrodes
• CPC Class Codes: H01J 2211/326 Disposition of electrodes with respect to cell parameters H01J2211/323 takes precedence, e.g. electrodes within the ribs
• 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 comprises a front substrate and a rear substrate, a plurality of row electrode pairs provided on the inner surface of the front substrate, a dielectric layer provided on the inner surface of the front substrate for coverring the row electrode pairs, a plurality of column electrodes provided on the inner surface of the rear substrate, a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, forming a plurality of discharge cells. In particular, the dielectric layer has a plurality of projection portions located corresponding to and protruding toward the lateral partition walls of the partition wall assembly, in a manner such that there would be no slots formed between the dielectric layer and the lateral partition walls.

Claims

1. A plasma display panel comprising:

a front substrate;

a plurality of row electrode pairs provided on the inner surface of the front substrate, said row electrode pairs being arranged in parallel with one another and extending in the row direction of the panel, with each electrode pairs forming a display line;

a dielectric layer provided on the inner surface of the front substrate for covering the row electrode pairs;

a rear substrate arranged in parallel with and spaced-apart from the front substrate, forming a discharge space therebetween;

a plurality of column electrodes provided on the inner surface of the rear substrate, said column electrodes being arranged in parallel with one another and extending in column direction of the panel, in a manner such that at each intersection of a row electrode pairs with a column electrode there is formed a light emission unit;

a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, thereby forming a lattice-like arrangement and thus dividing the discharge space into a plurality of discharge cells;

wherein each lateral partition wall of the partition wall assembly is divided into two portions by an elongated slot extending in the row direction of the panel.

2. The plasma display panel according to claim 1, wherein each divided portion of each lateral partition wall has substantially the same width as that of each longitudinal partition wall of the partition wall assembly.

3. The plasma display panel according to claim 1, wherein a plurality of light absorbing straps are formed on the inner surface of the front substrate, in positions corresponding to the elongated slots.

4. The plasma display panel according to claim 1, wherein each of two row electrodes of a row electrode pair includes an elongated main body portion extending in the row direction of the panel and a plurality of protruding portions extending in the column direction of the panel, so that a plurality of discharge gaps are formed between mutually facing protruding portions of two elongated main body portions.

5. The plasma display panel according to claim 1, wherein each elongated main body portion is made by a metal film and each protruding portion is formed by a transparent film with its base end connected to the elongated main body portion.

6. A plasma display panel comprising:

a front substrate;

a plurality of row electrode pairs provided on the inner surface of the front substrate, said row electrode pairs being arranged in parallel with one another and extending in the row direction of the panel, with each electrode pairs forming a display line;

a dielectric layer provided on the inner surface of the front substrate for covering the row electrode pairs;

a rear substrate arranged in parallel with and space-apart from the front substrate, forming a discharge space therebetween;

a plurality of column electrodes provided on the inner surface of the rear substrate;

said column electrodes being arranged in parallel with one another and extending in column direction of the panel, in a manner such that at each intersection of a row electrode pairs with a column electrode there is formed a light emission unit;

a partition wall assembly provided between the front substrate and the rear substrate, said partition wall assembly including a plurality of longitudinal partition walls and a plurality of lateral partition walls, thereby forming a lattice-like arrangement and thus dividing the discharge space into a plurality of discharge cells;

wherein a plurality of light absorbing straps are formed on the inner surface of the front substrate, in positions corresponding to the longitudinal partition wall of the partition wall assembly.

7. The plasma display panel according to claim 6, wherein each of two row electrodes of a row electrode pair includes an elongated main body portion extending in the row direction of the panel and plurality of protruding portions extending in the column direction of the panel, so that a plurality of discharge gaps are formed between mutually facing protruding portions of two elongated main body portions.

8. The plasma display panel according to claim 6, wherein each elongated main body portion is made by a metal film and each protruding portion is formed by a transparent film with its base end connected to the elongated main body portion.