Visual display apparatus
AssigneeModern Controls, Inc.
InventorsWilliam Norman Mayer, Richard Karl Kirchner, Nicholas Cleanthis Andreadakis
Life of this patent
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Abstract
Apparatus for providing a visual display screen of the type formed from a plurality of gas cells wherein electrical voltages are capacitively coupled to selected cells to cause gas ignition and subsequent light emission, and wherein a preselected and repeatable pattern of color phosphor is deposited on selected cell surfaces in predetermined amounts to form a means for selecting any color and intensity combination over a wide range.
Claims11
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.
In a color display apparatus constructed from a gas display panel having a plurality of gas cells arranged in a matrix whereby a plurality of color zone subsets are created from smaller cell matrices within the gas cell matrix, the improvement in color zone subsets comprising:
- a. parallel conductor inputs into said color zone subset matrix representative of different primary colors;
- b. a plurality of adjacent gas cells along a line extending from each parallel conductor input, said gas cells having deposited therein respective different quantities of color-emitting phosphor;
- and
- c. means for electrically igniting a first gas cell along said line, and further means for shifting said cell ignition into successive adjacent gas cells.
Dependencies are inferred from the claim text.