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Title:
【発明の名称】CRTのための蛍光体スクリーンの製造方法
Document Type and Number:
Japanese Patent JP2002522880
Kind Code:
A
Abstract:
In accordance with the present invention, shown in FIG. 3, a method of electrophotographically manufacturing a phosphor screen, comprises the steps of coating 44 an interior surface of a viewing faceplate panel to form a volatilizable organic conductive (OC) layer and overcoating 46 the OC layer to form a volatilizable organic photoconductive (OPC) layer. The OPC layer is electrostatically charged 48 and selected areas of the OPC layer are exposed to light to form a charge image 50. The charge image is developed with at least one phosphor material 52 which is fixed 58 to the OPC layer by spraying a fixing solution comprising two solvents, having substantially different rates of evaporation onto the phosphor material on the OPC layer to affect the solubility thereof and to make the OPC layer tacky. At least a portion or all of the solvent with the higher rate of evaporation is allowed to evaporate while the solvent with the lower rate of evaporation retains the tackiness of the OPC layer. The phosphor material on the OPC layer is resprayed with the fixing solution comprising the two solvents having the substantially different rates of evaporation to uniformly fix the phosphor material to said OPC layer. Then, the fixed phosphor material is filmed 62 and an aluminum layer is deposited thereon 66 to form the screen assembly which is baked at an elevated temperature to drive off the volatilizable constituents thereof.

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Inventors:
Patel, Himansh Mukhandrei
Jeffrey Herbert Harrel
Application Number:
JP2000564221A
Publication Date:
July 23, 2002
Filing Date:
July 29, 1999
Export Citation:
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Assignee:
Thomson Licensing Society Anonymous
International Classes:
G03G13/20; H01J9/22; H01J9/227; (IPC1-7): H01J9/227
Domestic Patent References:
JPH08339762A1996-12-24
JP2002518805A2002-06-25
JPH02230631A1990-09-13
JPH0887961A1996-04-02
Attorney, Agent or Firm:
Tadahiko Ito