公开(公告)号：US20230282631A1

公开(公告)日：2023-09-07

申请号：US18094512

申请日：2023-01-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Juyeon JEONG ,  Jongin YANG ,  Jinsub LEE ,  Suhyun JO

IPC: H01L25/18 ,  H01L27/15 ,  H01L23/00

CPC classification number: H01L25/18 ,  H01L24/13 ,  H01L24/16 ,  H01L27/156 ,  H01L24/05 ,  H01L2224/05573 ,  H01L2224/13021 ,  H01L2224/13147 ,  H01L2224/13181 ,  H01L2224/16145

Abstract: A display apparatus includes a circuit board having a driving circuit, and a pixel array on the circuit board, and including pixel units including a plurality of sub-pixels. The pixel array further includes a semiconductor stack including a first semiconductor region on the circuit board and divided into a plurality of LED cells, and a second semiconductor region on the first semiconductor region and having a partition structure defining a plurality of sub-pixel spaces, a plurality of wavelength converters respectively disposed in the plurality of sub-pixel spaces, a partition reflective layer having a first portion on an upper surface of the partition structure, and a second portion on sidewalls of the partition structure, the first portion having a thickness greater than a thickness of the second portion, and a first electrode and a second electrode electrically connecting each of the plurality of LED cells to the driving circuit.

公开(公告)号：US20220020943A1

公开(公告)日：2022-01-20

申请号：US17341688

申请日：2021-06-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Deukseok CHUNG ,  Min Jong BAE ,  Jinsub LEE ,  Yongjoo KWON ,  Shin Ae JUN

IPC: H01L51/50 ,  H01L27/32

Abstract: An electronic device includes a light emitting element having a width of less than or equal to about 20 micrometers (μm), a quantum dot color filter overlapping the light emitting element, and a photo-detecting unit which detects a first light emitted from the quantum dot color filter.