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Visual display apparatus

  • US 4,063,231 A
  • Filed: 10/26/1976
  • Issued: 12/13/1977
  • Est. Priority Date: 10/26/1976
  • Status: Expired due to Term
First Claim
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1. A visual display screen apparatus of the type having a matrix of selectable light cells wherein each cell contains an ignitable gas in close dielectric coupling with a voltage source, comprising:

  • a. a plurality of groups of cells, each group subdivided into rows and perpendicular lines, the intersection of each of which comprises an ignitable gas cell and wherein adjacent cells along a line have respective different weights of color-emitting phosphor deposited therein, and wherein adjacent cells along a row have respective different color-emitting phosphors deposited therein; and

    b. means for selectively energizing any combination of said cells in each of the plurality of groups of cells.

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