公开(公告)号：US11005004B2

公开(公告)日：2021-05-11

申请号：US16158783

申请日：2018-10-12

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Yong-Hoon Cho ,  Youngchul Sim ,  Kie Young Woo

IPC: H01L33/00 ,  H01L33/32 ,  H01L33/24 ,  H01L27/15 ,  H01L33/36

Abstract: Provided is a micro light emitting diode (LED) structure including an n-type semiconductor substrate layer, a light emitting structure layer formed on the n-type semiconductor substrate layer, and a p-type semiconductor layer formed on the light emitting structure layer, wherein the light emitting structure layer includes an arrangement of light emitting structures in which active layers including In and Ga are formed on tops thereof, wherein the light emitting structure layer forms at least three distinctive regions each including a single light emitting structure or a plurality of light emitting structures, the distinctive regions configured to emit light of at least two different wavelengths, the distinctive regions are controllable to emit light individually, and the distinctive regions are different in at least one of sizes of base faces, heights, and center-to-center distances of the lighting emitting structures of the regions.

公开(公告)号：US20190123235A1

公开(公告)日：2019-04-25

申请号：US16158783

申请日：2018-10-12

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Yong-Hoon Cho ,  Youngchul Sim ,  Kie Young Woo

IPC: H01L33/00 ,  H01L33/32 ,  H01L33/36 ,  H01L33/24 ,  H01L27/15

Abstract: Provided is a micro light emitting diode (LED) structure including an n-type semiconductor substrate layer, a light emitting structure layer formed on the n-type semiconductor substrate layer, and a p-type semiconductor layer formed on the light emitting structure layer, wherein the light emitting structure layer includes an arrangement of light emitting structures in which active layers including In and Ga are formed on tops thereof, wherein the light emitting structure layer forms at least three distinctive regions each including a single light emitting structure or a plurality of light emitting structures, the distinctive regions configured to emit light of at least two different wavelengths, the distinctive regions are is controllable to emit light individually, and the distinctive regions are different in at least one of sizes of base faces, heights, and center-to-center distances of the lighting emitting structures of the regions.