Method for producing thin, uniform powder phosphor for display screens
First Claim
Patent Images
1. A process comprising the steps of:
- depositing a phosphor on a support;
planarizing said deposited phosphor with a mechanical press;
curing said planarized deposited phosphor; and
repeating said planarizing step after said curing step.
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Abstract
A system and method for producing thin, uniform powder phosphors for field emission display screens wherein a planarization of the phosphor powder layer is accomplished by placing the deposited phosphor layer in an anode plate between two optical flats, which are then mounted within a mechanical press.
101 Citations
22 Claims
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1. A process comprising the steps of:
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depositing a phosphor on a support; planarizing said deposited phosphor with a mechanical press; curing said planarized deposited phosphor; and repeating said planarizing step after said curing step. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of providing a phosphor on a substrate, comprising the following steps in the sequence set forth:
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depositing said phosphor on said substrate; placing an optical flat on said deposited phosphor; planarizing said deposited phosphor by pressing said optical flat towards said substrate with a mechanical press; curing said planarized deposited phosphor; and repeating said planarizing and curing steps. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method of providing a phosphor layer on a substrate, wherein said phosphor layer has less than a 3% variation in its thickness, said method comprising the steps of:
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depositing said phosphor layer on said substrate; planarizing said deposited phosphor, wherein said planarizing step is performed with a mechanical press; curing said planarized deposited phosphor layer; and repeating said planarizing step after said curing step. - View Dependent Claims (22)
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Specification