Protective plate for a plasma display and a method for producing the same

• US 8,048,531 B2
• Filed: 11/14/2006
• Issued: 11/01/2011
• Est. Priority Date: 09/26/1996
• Status: Expired due to Fees

• Current Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Original Assignee: Asahi Glass Company, Limited (AGC, Inc.)
• Inventors: Oyama, Takuji, Ajikata, Toshihiro, Noda, Kazuyoshi, Aikawa, Katsuaki, Osada, Kouichi, Sakurada, Nobuyoshi, Moriwaki, Ken
• Primary Examiner(s): Blackwell; Gwendolyn
• Application Number:
  US11/559,631
• Publication Number:
  US 20070069245A1
• Time in Patent Office: 1,813 Days
• Field of Search: 428/432, 428/433, 428/689, 428/699
• US Class Current: 428/432
• CPC Class Codes: B32B 17/10005 laminated safety glass or glazing
• CPC Class Codes: B32B 17/10018 comprising only one glass sheet
• CPC Class Codes: B32B 17/10174 Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
• CPC Class Codes: B32B 27/06 as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to a layer of a particular substance B32B9/045; next to a bituminous or tarry layer B32B11/046; next to a water setting substance layer B32B13/12; next to a metal layer B32B15/08; next to a glass layer B32B17/10; next to a layer formed of natural mineral fibres or particles B32B19/045; next to a wood layer B32B21/08; next to a cellulosic plastic layer B32B23/08; next to a natural or synthetic rubber layer B32B25/08
• CPC Class Codes: C03C 17/36 at least one coating being a metal
• CPC Class Codes: C03C 17/3639 Multilayers containing at least two functional metal layers
• CPC Class Codes: C03C 17/3644 the metal being silver
• CPC Class Codes: C03C 17/3655 the multilayer coating containing at least one conducting layer
• CPC Class Codes: C03C 17/3671 specially adapted for use as electrodes
• CPC Class Codes: C03C 17/3676 specially adapted for use as electromagnetic shield
• CPC Class Codes: C03C 2218/154 by sputtering
• CPC Class Codes: G02B 1/11 Anti-reflection coatings
• CPC Class Codes: G02B 1/116 including electrically conducting layers
• CPC Class Codes: G02B 1/14 Protective coatings, e.g. hard coatings
• CPC Class Codes: G02B 5/208 for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
• CPC Class Codes: G02B 5/22 Absorbing filters G02B5/201 - G02B5/208 take precedence
• CPC Class Codes: G09G 2330/06 Handling electromagnetic interferences [EMI], covering emitted as well as received electromagnetic radiation
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: H01J 11/10 AC-PDPs with at least one main electrode being out of contact with the plasma
• 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 2211/446 : Electromagnetic shielding means; Antistatic means
• CPC Class Codes: H01J 2211/448 : Near infrared shielding means
• CPC Class Codes: H01J 5/02 : Vessels; Containers; Shields associated therewith; Vacuum locks
• CPC Class Codes: H01J 5/03 : Arrangements for preventing or mitigating effects of implosion of vessels or containers
• CPC Class Codes: H01J 9/241 : the vessel being for a flat panel display H01J9/261 takes precedence; flat discharge lamps H01J9/248
• CPC Class Codes: H05K 9/0096 : for television displays, e.g. plasma display panel
• CPC Class Codes: Y10T 428/315 : Surface modified glass [e.g., tempered, strengthened, etc.]

Abstract

A protective plate for a plasma display comprises conductive substrate for protecting a plasma display and an electrode in electrical contact with the conductive substrate.

Claims

1. A protective plate for a plasma display comprising:

a conductive substrate for protecting a plasma display, comprising a substrate and a conductive film formed on the substrate, and

an electrode formed on and in electrical contact with the conductive substrate, wherein the conductive film comprises alternating oxide and metal layers laminated into a multilayer structure having a total of seven layers, wherein the total thickness of the oxide and metal layers is 230 to 330 nm.

2. The protective plate according to claim 1, wherein the film thickness of the second metal layer, which is the fourth layer, is 105 to 150% of the film thickness of the first metal layer, which is the second layer, and 105 to 150% of the film thickness of the third metal layer, which is the sixth layer.

3. The protective plate according to claim 1, wherein each of the metal layers comprises Ag as a main component.

4. The protective plate according to claim 1, wherein each of the oxide layers comprises ZnO as a main component.

5. The protective plate according to claim 3, wherein each of the metal layers comprises Ag as a main component and Pd or Au, or both Pd and Au.

14. The protective plate for a plasma display according to claim 1, wherein the respective oxide layers have a plurality of thin oxide layers containing a layer comprising ZnO as the main component.

15. The protective plate for a plasma display according to claim 14, wherein the layer comprising ZnO as the main component is an oxide layer comprising ZnO containing at least one metal other than Zn.

6. A protective plate for a plasma display comprising:

a conductive substrate for protective a plasma display, comprising a substrate and a conducting film formed on the substrate, and

an electrode formed on and in electrical contact with the conductive substrate, wherein the conductive film comprises alternating oxide and metal layers laminated into a multilayer structure having a total of nine layers, wherein the total thickness of the oxide and metal layers is 270 to 370 nm.

7. The protective plate according to claim 6, wherein a total thickness of the oxide and metal layers is 310 to 350 nm.

8. The protective plate according to claim 6, wherein each of the metal layers comprises Ag as a main component.

9. The protective plate according to claim 6, wherein each of the oxide layers comprises ZnO as a main component.

10. The protective plate according to claim 9, wherein each of the oxide layers comprises ZnO containing at least one metal other than Zn.

11. The protective plate according to claim 10, wherein the at least one metal other than Zn is contained in an amount of 1 to 10 atomic % of the sum total amount of the metal and Zn.

12. The protective plate according to claim 9, wherein the substrate is a glass plate.

13. The protective plate according to claim 12, wherein the substrate is a strengthened glass plate.

16. The protective plate for a plasma display according to claim 6, wherein the respective oxide layers have a plurality of thin oxide layers containing a layer comprising ZnO as the main component.

17. The protective plate for a plasma display according to claim 16, wherein the layer comprising ZnO as the main component is an oxide layer comprising ZnO containing at least one metal other than Zn.