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

• US 20040058170A1
• Filed: 08/18/2003
• Published: 03/25/2004
• Est. Priority Date: 09/26/1996
• Status: Active Grant

• 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
• Granted Patent: US 7,087,308 B2
• Time in Patent Office: Days
• 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 and an electrode in electrical contact with the conductive substrate.

2. The protective plate for a plasma display according to claim 1, wherein the conductive substrate for protecting a plasma display comprises a substrate and a conductive film formed on the substrate.

3. The protective plate for a plasma display according to claim 2, wherein the substrate is a glass plate.

4. The protective plate for a plasma display according to claim 2, wherein a resinous film for preventing the scattering of the protective plate is provided on a front surface and/or a rear surface of the substrate, or the substrate is laminated on a separate substrate by interposing a resinous interlayer, whereby a scattering protection property is provided.

5. The protective plate for a plasma display according to claim 2, wherein a resinous film of low refractive index is provided or a thin film of low refractive index is formed, on a front surface and/or a rear surface of the substrate, whereby an anti-reflection property is provided.

6. The protective plate for a plasma display according to claims 2, wherein the conductive film is a multi-layer conductive film wherein an oxide layer and a metal layer are laminated alternately from a substrate side to form in total (2n+1) layers (wherein n is an integer of at least 1).

7. The protective plate for a plasma display according to claim 6, wherein the oxide layer is an oxide layer comprising ZnO as the main component, and the metal layer is a metal layer comprising Ag as the main component.

8. The protective plate for a plasma display according to claim 7, wherein the oxide layer comprising ZnO as the main component is an oxide layer comprising ZnO containing at least one metal.

9. The protective plate for a plasma display according to claim 8, wherein the proportion of the total amount of the at least one metal contained in ZnO is within 1-10 atomic % based on the sum of the total amount of the metal and Zn.

10. The protective plate for a plasma display according to claim 9, wherein the metal contained in ZnO is at least one metal selected from the group consisting of Sn Al, Cr, Ti, Si, B, Mg and Ga.

11. The protective plate for a plasma display according to claim 10, wherein the metal layer is a metal layer comprising Ag as the main component.

12. The protective plate for a plasma display according to claim 11, wherein the metal layer comprising Ag as the main component is a metal layer comprising Ag containing Pd and/or Au.

13. The protective plate for a plasma display according to claim 12, wherein the proportion of the total amount of Pd and/or Au is within 0.3-10 atomic % based on the sum of Ag and the total amount of Pd and/or Au.

14. The protective plate for a plasma display according to claim 6, wherein the conductive film is a multi-layer conductive film in which an oxide layer and a metal layer are alternately laminated into 7 layers.

15. The protective plate for a plasma display according to claim 14, wherein the film thickness of the fourth metal layer among the second metal layer, the fourth metal layer and the sixth metal layer in the 7 layer conductive film is larger than that of the second metal layer and is larger than that of the sixth metal layer.

16. The protective plate for a plasma display according to claim 1, wherein a moisture-proof film is provided to prevent the deterioration of the conductive film due to moisture.

17. The protective plate for a plasma display according to claim 1, wherein a film having a near infrared ray absorbing property is provided.

18. The protective plate for a plasma display according to claim 5, wherein the resinous film of low refractive index is a colored film.

19. The protective plate for a plasma display according to claim 16, wherein the moisture-proof film is a colore film.

20. A method for producing a protective plate for a plasma display comprising forming an electrode in the entire periphery of a substrate and forming a conductive film to cover the electrode.