19007934. LIGHT EMITTING DEVICE AND IMAGE FORMING APPARATUS INCLUDING LIGHT EMITTING DEVICE (CANON KABUSHIKI KAISHA)
LIGHT EMITTING DEVICE AND IMAGE FORMING APPARATUS INCLUDING LIGHT EMITTING DEVICE
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LIGHT EMITTING DEVICE AND IMAGE FORMING APPARATUS INCLUDING LIGHT EMITTING DEVICE
This abstract first appeared for US patent application 19007934 titled 'LIGHT EMITTING DEVICE AND IMAGE FORMING APPARATUS INCLUDING LIGHT EMITTING DEVICE
Original Abstract Submitted
A light emitting device includes a silicon substrate and a light emitting region including a lower electrode, a light emitting layer, and an upper electrode, and an exposure head is provided with a printed board on which light emitting devices are arranged in a staggered form and a circuit portion for controlling, on the basis of image data, a voltage of each of electrodes included in the lower electrode so that the light emitting device layer emits light and is for forming an image with a resolution corresponding to an arrangement interval of the lower electrode with respect to a crossing direction, and the circuit portion is disposed together with the light emitting region on the silicon substrate. Costs on wire bonding and an area of a wiring board can be suppressed.
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