Light-emitting diode print head with staggered electrodes

Details Light-emitting diode print head with staggered electrodes Light-emitting diode print head with staggered electrodes

1992-03-06

1993-11-02

Mintel, William

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

Incoherent light emitter structure

Plural light emitting devices

257 91, 257 99, 257 90, 313500, 346107R, 362800, H01L 3300

Patent

active

052586294

ABSTRACT:
A light-emitting diode print head having a narrow LED array chip wherein the constituent LEDs of the array are arranged in a zigzag formation and driven using a differential timing arrangement that compensates for the offset of alternate LEDs in the printing line. The LED array comprises a plurality of light-emitting elements arrayed in a staggered configuration of odd and even numbered elements in parallel rows extending in a first, print line direction and a plurality of electrodes connected to the corresponding light-emitting elements and arranged in a mutually alternating orientation extending between the parallel rows at right-angles to the first direction and forming parallel rows of odd and even numbered electrode terminals interleaved between the even and odd numbered light-emitting elements, respectively.

REFERENCES:
patent: 4605944 (1986-08-01), Ishii et al.
patent: 4707716 (1987-11-01), Daniele
patent: 4721977 (1988-01-01), Fukse
patent: 4951098 (1990-08-01), Albergo et al.
patent: 5134340 (1992-07-01), Haitz
patent: 5138337 (1992-08-01), Ng
patent: 5138338 (1992-08-01), Mochizuki et al.

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