Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1983-04-01
1986-10-28
Chatmon, Saxfield
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
313463, 313501, 372 11, 372 24, 372 43, 331 941, H01J 2316, H01J 2996
Patent
active
046201327
ABSTRACT:
In a CRT display device the target comprises a multilayered semiconductor including a p-n junction and at least one current-blocking layer. The e-beam is locally absorbed in the current-blocking layer so as to open a narrow zone which allows charge to flow through the forward biased p-n junction. The injection current produces a local spot of light which radiates from the opposite side of the device and whose position is varied by scanning the e-beam. In one embodiment the current-blocking layer is a semi-insulating semiconductor layer, and in another embodiment the current-blocking layer comprises the base of a normally cut-off transistor.
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"Formation of a Television Image with the Aid of a Laser Electron-Beam Tube Under Line Scanning Condition", by Kozlovskii et al, Sov. J. Quant. Electron, vol. 5, No. 7, 1980.
"Possible Use of Quantoscopes-New Devices with Electron-Beam-Scanned Semiconductor Lasers-in Large-Screen Color Projection Television Systems", by Grigor'ev et al, vol. 6, No. 3, pp. 279-282, 1980.
Gordon Eugene I.
Levy Uri
AT&T Bell Laboratories
Chatmon Saxfield
Urbano Michael J.
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