公开(公告)号：US11588053B2

公开(公告)日：2023-02-21

申请号：US17149164

申请日：2021-01-14

Applicant: Samsung Display Co., LTD.

Inventor： Ji Hye Han ,  Jung Yun Jo ,  Chui Min Bae

IPC: H01L27/00 ,  H01L29/00 ,  H01L29/786 ,  H01L27/12 ,  H01L27/32

Abstract: A display device includes a buffer layer disposed on a substrate and comprising a first buffer film, and a second buffer film, wherein the first buffer film and the second buffer film are sequentially stacked in a thickness direction of the display device; a semiconductor pattern disposed on the buffer layer; a gate insulating layer disposed on the semiconductor pattern; and a gate electrode disposed on the gate insulating layer, wherein the first buffer film and the second buffer film comprise a same material, and a density of the first buffer film is greater than a density of the second buffer film.

公开(公告)号：US11756938B2

公开(公告)日：2023-09-12

申请号：US17404943

申请日：2021-08-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yeoung Keol Woo ,  Chui Min Bae ,  Heon Sik Ha

IPC: H01L25/075 ,  H01L33/62 ,  H01L23/00 ,  H01L33/38

CPC classification number: H01L25/0753 ,  H01L24/96 ,  H01L33/62 ,  H01L33/38 ,  H01L2224/95101 ,  H01L2224/95133 ,  H01L2933/0066

Abstract: A light emitting device includes: a substrate; a first electrode and a second electrode on the substrate and spaced apart from each other; a light emitting diode between the first electrode and the second electrode and connected to the first and second electrodes; a first contact on the first electrode; and a second contact on the second electrode. The first contact contacts the first electrode and a first portion of the light emitting diode, and the second contact contacts the second electrode and a second portion of the light emitting diode.

公开(公告)号：US11346992B2

公开(公告)日：2022-05-31

申请号：US16714763

申请日：2019-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Chang Ok Kim ,  Chui Min Bae ,  Ji Hye Han ,  Tae Wook Kang ,  Yong Seok Kim ,  Shin Il Choi

IPC: F21V8/00

Abstract: A light unit including: a light source; and an optical member that transmits and converts light emitted from the light source, wherein the optical member includes: a light guide; a low refractive index layer that is disposed on the light guide and has a lower refractive index than that of the light guide; a first capping layer that is disposed on the low refractive index layer; and a wavelength conversion layer that is disposed on the first capping layer and includes quantum dots, and the light guide includes a transparent metal oxide.