ELECTROLUMINESCENT DISPLAY DEVICE WITH OPTICALLY COMMUNICATING CHIPLETS

摘要

An electroluminescent display includes a display substrate (10), a plurality of patterned first electrodes (12) formed over the display substrate, one or more layers of light - emitting material (14) formed over the plurality of first electrodes, at least one second electrode (16) formed over the one or more layers of light - emitting material, and a plurality of chiplets (22). Each chiplet is electrically connected to a first electrode. Each chiplet further includes a light detector (42) and a light emitter (40) separate from the one-or-more layers of light - emitting material connected to the chiplet circuitry. The chiplet circuitry includes a modulating circuit (50) for modulating tight emitted by the light emitter and a demodulating circuit (52) for demodulating light detected by the light detector so that light emitted by the light emitter of a first chiplet is received by the light detector of a second chiplet.