Surface discharge plasma display panel having two-dimensional black stripes of specific size and shape

• US 6,417,620 B1
• Filed: 08/02/1999
• Issued: 07/09/2002
• Est. Priority Date: 02/02/1998
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Yasue, Takao
• Primary Examiner(s): Patel, Vip
• Assistant Examiner(s): HAYNES, MACK NELSON
• Application Number:
  US09/355,624
• Time in Patent Office: 1,072 Days
• Field of Search: 313/582, 313/583, 313/584-85, 313/586, 313/587
• US Class Current: 313/587
• CPC Class Codes: H01J 11/12 with main electrodes provided on both sides of the discharge space
• CPC Class Codes: H01J 11/38 Dielectric or insulating layers
• CPC Class Codes: H01J 11/44 Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
• CPC Class Codes: H01J 2211/444 Means for improving contrast or colour purity, e.g. black matrix or light shielding means

Abstract

A high performance surface discharge type PDP includes a first glass substrate having a plurality of scanning electrode pairs (X, Y) in parallel with each other and black stripes in parallel with the scanning electrode pairs formed on one main surface thereof and having a dielectric layer covering them. The PDP further includes a second glass substrate including a plurality of address electrodes W formed in parallel with each other in a direction orthogonal to the scanning electrode pairs and having a plurality of barrier ribs in parallel with the address electrodes W for abutting the dielectric layer to form discharge spaces corresponding to each of the address electrodes W. The black stripes formed on the first glass substrate have portions that each intersect with a top of a corresponding one of the plurality of barrier ribs on the second glass substrate which are cut into pieces. Consequently, clearances can be reduced in a portion where the top of the barrier rib abuts the dielectric layer, thereby narrowing an unnecessary discharge space between adjacent unit luminescent areas EU, and less defective writing results from an erroneous discharge or the like.

Claims

1. A surface discharge type plasma display panel comprising:

a first glass substrate having a plurality of scanning electrode pairs parallel with each other, extending in a horizontal direction, and black stripes parallel with said plurality of scanning electrode pairs formed on one main surface thereof and having a dielectric layer covering said plurality of scanning electrode pairs and said black stripes; and

a second glass substrate including a plurality of address electrodes formed in parallel with each other in a direction orthogonal to said plurality of scanning electrode pairs and having a plurality of barrier ribs spaced along said horizontal direction and parallel with said plurality of address electrodes, said plurality of barrier ribs abutting on said dielectric layer to form discharge spaces each corresponding to one of said plurality of address electrodes,

wherein each of said black stripes formed on said first glass substrate has a plurality of portions that each cover a two-dimensional region having a dimension along said horizontal direction that is substantially equal to the spacing between adjacent barrier ribs.

2. The surface discharge type plasma display panel according to claim 1, wherein black stripes formed on said first glass substrate include a plurality of layers, at least one of said plurality of layers having a plurality of portions that each cover a two-dimensional region having a dimension along said horizontal direction that is substantially equal to the spacing between adjacent barrier ribs.

3. The plasma display panel according to claim 2, wherein a discharging protective film is formed on a surface of said dielectric layer.

4. The plasma display panel according to claim 2, wherein said top of said each one of said plurality of barrier ribs is formed by a layer mixed with a black pigment.

5. The plasma display panel according to claim 1, wherein a discharging protective film is formed on a surface of said dielectric layer.

6. The plasma display panel according to claim 1, wherein said top of said each one of said plurality of barrier ribs is formed by a layer mixed with a black pigment.

7. A plasma display panel comprising:

a first glass substrate having a plurality of scanning electrode pairs parallel with each other and black stripes parallel with said plurality of scanning electrode pairs formed on one main surface thereof and having a dielectric layer covering said plurality of scanning electrode pairs and said black stripes; and

a second glass substrate including a plurality of address electrodes formed in parallel with each other in a direction orthogonal to said plurality of scanning electrode pairs and having a plurality of barrier ribs parallel with said plurality of address electrodes, said plurality of barrier ribs abutting on said dielectric layer to form discharge spaces each corresponding to one of said plurality of address electrodes,

wherein a top of each one of said plurality of barrier ribs provided on said second glass substrate includes notch portions formed in portions intersecting with said black stripes so that convex portions of said dielectric layer generated due to said black stripes formed on said first glass substrate are fitted in said notch portions.

8. The plasma display panel according to claim 7, wherein a discharging protective film is formed on a surface of said dielectric layer.

9. The plasma display panel according to claim 7, wherein said top of said each one of said plurality of barrier ribs is formed by a layer mixed with a black pigment.

10. A surface discharge type plasma display panel comprising:

a first substrate;

a plurality of scanning electrode pairs, in parallel with each other and extending in a horizontal direction, on a surface of said first substrate;

a plurality of black stripe portions;

a dielectric layer covering said plurality of electrode pairs and said plurality of black stripe portions;

a second substrate, opposite to said first substrate;

a plurality of barrier ribs spaced along said horizontal direction above a surface of said second substrate and abutting said dielectric layer to form discharge spaces of said display panel, said plurality of barrier ribs being orthogonal to said plurality of scanning electrode pairs; and

a plurality of address electrodes, in parallel with each other in a direction orthogonal to said plurality of scanning electrode pairs,

wherein each of said plurality of black stripe portions is positioned between adjacent barrier ribs so as to cover a two-dimensional region having a dimension along said horizontal direction that is substantially equal to the spacing between adjacent barrier ribs but not extend over said adjacent barrier ribs.

11. The surface discharge type plasma display panel according to claim 10, further comprising:

a plurality of uncut black stripes, in parallel with said scanning electrode pairs and positioned so as to overlap said plurality of barrier ribs, said black stripe portions being stacked over said plurality of uncut black stripes.

12. The surface discharge type plasma display panel according to claim 11, wherein a top surface of each of said plurality of barrier ribs is formed by a layer mixed with a black pigment.

13. The surface discharge type plasma display panel according to claim 11, wherein a discharging protective film is formed on a surface of said dielectric layer.

14. The surface discharge type plasma display panel according to claim 10, wherein a top surface of each of said plurality of barrier ribs is formed by a layer mixed with a black pigment.

15. The surface discharge type plasma display panel according to claim 10, wherein a discharging protective film is formed on a surface of said dielectric layer.