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ApplicationNo. 341236 filed on 04/18/1989
US Classes:349/61, Particular illumination345/88, Color348/743, With moving color filters348/795, Direct viewed light valve349/42Transistor
ExaminersPrimary: James, Andrew J.
Assistant: Duong, Tai V.
Attorney, Agent or Firm
International ClassesG02F 001/133
Foreign Application Priority Data1985-03-05 FI
AbstractDescribed herein are a method for generating electronically controllable color elements and a color display based on the method, comprising a light gate matrix (9), and a light source system with a set of primary color sources (6, 7, 8) for the primary colors (R, G, B), and control circuits (1 . . . 4) for controlling the transmission of light gates in the light gate matrix (9) for a level corresponding to the intensity of the respective primary color in the composite color spectrum of the displayed picture element. In accordance with the invention, the primary color is generated by pulsing the primary color sources and using only one light gate per picture element for controlling the primary color intensities at the picture element. The present invention facilitates, among other things, perfect color convergence, improved light transmission efficiency, and simpler production technology for transmission type color displays, due to single light gate construction of the controlled light gate matrix (FIGS. 1a and 1b).
Field of SearchPhosphor on anode segments