LIGHT-EMITTING DEVICE AND IMAGE FORMATION DEVICE EQUIPPED WITH LIGHT-EMITTING DEVICE

WIPO Patent Application WO/2021/039354

A1

A light-emitting device 401 having a silicon substrate and a light-emitting region that includes a lower electrode, a light-emitting layer, and an upper electrode. An image formation device that is an exposure head for forming an image having a resolution corresponding to the arrangement interval of the lower electrodes in the intersecting direction, said exposure head comprising: a printed circuit board having light-emitting devices 401 arranged in a staggered pattern; and a circuit unit 602 that controls the voltage of each electrode included in the lower electrodes such that the light-emitting layer emits light, controlling same on the basis of image data. The circuit unit 602 is arranged on the silicon substrate together with the light-emitting region. The costs for wire bonding or wiring board area can be suppressed.

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FURUTA YASUTOMO (JP)
ONO TAKAHISA (JP)
KOYAMA HAYATO (JP)
YOSHIDA HIDEFUMI (JP)

PCT/JP2020/030287

March 04, 2021

July 31, 2020

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CANON KK (JP)

B41J2/447; B41J2/45; H01L51/50; H04N1/036

JP2007081081A	2007-03-29
JP2013157226A	2013-08-15
JP2011024004A	2011-02-03
JP2017183436A	2017-10-05
US20100141731A1	2010-06-10

TAKAO, Masayuki (JP)

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