Plasma display panel

• US 20040000871A1
• Filed: 06/12/2003
• Published: 01/01/2004
• Est. Priority Date: 06/28/2002
• Status: Abandoned Application

• Current Assignee: Pioneer Corporation, Pioneer Display Products Corporation (Pioneer Corporation)
• Original Assignee: Pioneer Corporation, Pioneer Display Products Corporation (Pioneer Corporation)
• Inventors: Higashi, Hirofumi, Ogane, Shingo
• Application Number:
  US10/459,433
• Publication Number:
  US 20040000871A1
• Time in Patent Office: Days
• 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 11/44 Optical arrangements or shielding arrangements, e.g. filters, black matrices, light reflecting means or electromagnetic shielding means
• CPC Class Codes: H01J 2211/442 Light reflecting means; Anti-reflection means
• CPC Class Codes: H01J 2211/444 Means for improving contrast or colour purity, e.g. black matrix or light shielding means

Abstract

When viewed from the surface of a front substrate, a light absorption layer is formed at least in part on the back surface of the front substrate in alignment with a part between two back-to-back bus electrodes and of the respective row electrode pairs adjacent to each other in the row direction and with a part ranging from the part to the vicinity of a side edge of each of the bus electrodes and connected to the corresponding transparent electrodes. A light reflection layer is formed on the back surface of the light absorption layer.

Claims

1. A plasma display panel including,

a front substrate and a back substrate which are opposite to each other with a discharge space in between,

a plurality of row electrode pairs regularly arranged in the column direction on a back surface of the front substrate, and each extending in the row direction to form a display line,

a dielectric layer formed on the back surface of the front substrate to cover the row electrode pairs, and

a plurality of column electrodes regularly arranged in the row direction on a surface of the back substrate facing toward the front substrate, and each extending in the column direction to constitute unit light-emitting areas at intersections with the row electrode pairs in the discharge space,

one row electrode in each row electrode pair being constituted of transparent electrodes each having an end facing an end of the corresponding transparent electrode of the other row electrode in the row electrode pair with a required discharge gap in between, and a bus electrode extending in the row direction and connected to an reverse end of each of the transparent electrodes from the end facing the discharge gap,

said plasma display panel comprising:

a light absorption layer formed, when viewed from the surface of the front substrate, at least in part on the back surface of the front substrate in alignment with a part between the two back-to-back bus electrodes of the respective row electrode pairs adjacent to each other in the row direction, and also with a part ranging from the part to a vicinity of a side edge of the bus electrode connected to each transparent electrode; and

a light reflection layer formed on the back surface of the light absorption layer.

2. A plasma display panel according to claim 1, wherein said light absorption layer and said light reflection layer extend to a point beyond the side edge of the bus electrode connected to each transparent electrode.

3. A plasma display panel according to claim 1, further comprising:

an additional dielectric layer protruding from a position on a back surface of the dielectric layer opposite the two back-to-back bus electrodes of the respective row electrode pairs adjacent to each other in the row direction and opposite a part between the two back-to-back bus electrodes concerned,

wherein the additional dielectric layer is constituted by said light absorption layer, and said light reflection layer is formed on a back surface of the additional dielectric layer.

4. A plasma display panel according to claim 1, wherein said light absorption layer and said light reflection layer are formed in at least a position, covering a part between the two back-to-back bus electrodes of the respective row electrode pairs adjacent to each other in the row direction and also the two back-to-back bus electrodes concerned, on the back surface of the front substrate.

5. A plasma display panel according to claim 1, wherein said light absorption layer and said light reflection layer are further formed in a position extending in the column direction and opposite a boundary part between the unit light-emitting areas adjacent to each other in the row direction.