H - Electricity – 05 – B
Patent
H - Electricity
05
B
345/9
H05B 33/02 (2006.01) H01S 3/19 (1980.01)
Patent
CA 1083251
FLAT SCREEN SOLID STATE DISPLAY AND MEMORY DEVICE UTILIZING COLOR CENTERS ABSTRACT OF THE DISCLOSURE A passive display device providing high resolution and contrast and very fast response time for presenting and erasing information is formed from a thin layer of a crystal material capable of forming color centers in an electric field, an electron injection source by tunnel effect which includes a first thin metal layer, an insulation barrier, and a very thin metal layer, and an electrode array for selectively controlling the path of the electrons passing through the very thin metal layer, by tunnel effect, into the crystal material, upon appli- cation of a suitable voltage across the metal layers, in accordance with the information to be displayed. A process for displaying information using the passive display device requires applying a voltage across the metal layers of the electron injection source to create an electron flow, by tunnel effect, across the conduction band of the in- sulator and beyond the very thin metal layer to the crystal color center material, and simultaneously providing a voltage between the electrode array on the opposed surface of the crystal material and the very thin metal layer, the latter voltage causing acceleration of the electrons toward selective sites forming color centers in the crystal material in accordance with the information to be displayed.
285390
Fetherstonhaugh & Co.
Robillard Jean J.
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