Panel for color CRT and method for manufacturing the same

• US 20050007008A1
• Filed: 07/09/2004
• Published: 01/13/2005
• Est. Priority Date: 07/10/2003
• Status: Abandoned Application

• Current Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Original Assignee: LG Philips LCD Company Limited (LG Display Co., Ltd.)
• Inventors: Park, Kyung Kyu
• Application Number:
  US10/886,713
• Publication Number:
  US 20050007008A1
• Time in Patent Office: Days
• US Class Current: 313/479
• CPC Class Codes: H01J 2229/8632 characterised by the material
• CPC Class Codes: H01J 2229/8637 Mechanical shielding, e.g. against water or abrasion
• CPC Class Codes: H01J 2229/88 Coatings
• CPC Class Codes: H01J 2229/8913 Anti-reflection, anti-glare, viewing angle and contrast improving treatments or devices
• CPC Class Codes: H01J 29/868 Screens covering the input or output face of the vessel, e.g. transparent anti-static coatings, X-ray absorbing layers
• CPC Class Codes: H01J 29/88 provided with coatings on the walls thereof; Selection of materials for the coatings H01J29/868 and H01J29/89 take precedence
• CPC Class Codes: H01J 29/89 Optical or photographic arrangements structurally combined or co-operating with the vessel H01J29/866 and H01J29/868 take precedence
• CPC Class Codes: H01J 9/20 Manufacture of screens on or from which an image or pattern is formed, picked up, converted or stored; Applying coatings to the vessel

Abstract

A panel for a color cathode ray tube, on which an image is to be displayed and which has a phosphor screen formed on an inner surface thereof, is disclosed. The panel comprises a plurality of coating film layers formed on an outer surface of the panel. The outermost coating film layer among the plurality of coating film layers includes a fluorine-containing compound.

Claims

1. A panel for a color cathode ray tube, on which an image is to be displayed and which has a phosphor screen formed on an inner surface thereof, the panel comprising:

a plurality of coating film layers formed on an outer surface of the panel,

wherein the outermost coating film layer among the plurality of coating film layers includes a fluorine-containing compound.

2. The panel of claim 1, wherein each coating film formed on the outer surface of the panel comprises at least one film selected from an anti-static film, an anti-reflection film and an anti-glare film.

3. The panel of claim 1, wherein the fluorine-containing compound forms hydrogen and covalent bonds with the coating film.

4. The panel of claim 1, wherein the fluorine-containing compound has a structure of Fluoro(Rf)-CH₂CH₂Si(OCH₃)₃.

5. The panel of claim 1, wherein the outermost coating film including the fluorine-containing compound, serving as a scale film, has a contact angle in the range of 45°

to 53°

when measuring a water-repellent effect.

6. The panel of claim 1, wherein the outer surface of the panel is substantially flat.

7. A panel for a color cathode ray tube, on which an image is to be displayed and which has a phosphor screen formed on an inner surface thereof, the panel comprising:

a plurality of coating film layers formed on an outer surface of the panel,

wherein the outermost coating film layer among the plurality of coating film layers includes a fluorine-containing compound, and the fluorine-containing compound constituting the outermost coating film layer has a hydrophobic group.

8. The panel of claim 7, wherein each coating film formed on the outer surface of the panel comprises at least one film selected from an anti-static film, an anti-reflection film and an anti-glare film.

9. The panel of claim 7, wherein the fluorine-containing compound forms hydrogen and covalent bonds with the coating film.

10. The panel of claim 7, wherein the fluorine-containing compound has a structure of Fluoro(Rf)-CH₂CH₂Si(OCH₃)₃.

11. The panel of claim 7, wherein the outermost coating film including the fluorine-containing compound, serving as a scale film, has a contact angle in the range of 45°

to 53°

when measuring a water-repellent effect.

12. The panel of claim 7, wherein the outer surface of the panel is substantially flat.

13. A method for manufacturing a panel for a color cathode ray tube, on which an image is to be displayed and which has a phosphor screen formed on an inner surface thereof, the method comprising the steps of:

forming one or more coating films on an outer surface of the panel; and

forming a fluorine-containing scale film on the outermost coating film of the one or more coating films.

14. The method of claim 13, wherein the one or more coating films are formed to serve as an anti-static film, an anti-reflection film and an anti-glare film.