High-density light-emitting-diode array utilizing a plurality of

Details High-density light-emitting-diode array utilizing a plurality of High-density light-emitting-diode array utilizing a plurality of

1997-07-23

1999-09-21

Tran, Minh Loan

Active solid-state devices (e.g., transistors, solid-state diode

Incoherent light emitter structure

Plural light emitting devices

257 93, 257 99, 257 91, H01L 3300

Patent

active

059557478

ABSTRACT:
A light-emitting-diode array is formed on a substrate having an upper layer of a semiconducting material and a lower layer of an insulating or semi-insulating material. The upper layer is divided into blocks by isolation channels that cut completely through the upper layer. The light-emitting diodes, which are formed by selective diffusion of an impurity into the upper layer, are arranged in a single row, with at least two light-emitting diodes in each block of the upper layer. Each block has a block electrode that drives the light-emitting diodes in the block. The row of light-emitting diodes is paralleled by a number of shared lines which cross the isolation channels. Each shared line is coupled to a plurality of light-emitting diodes in different blocks.

REFERENCES:
"Hikari Purinta no Sekkei" (Design of Optical Printers), Yoshihiro Takeikida, Triceps, 1985, pp. 121-126.

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