公开(公告)号：US20220223811A1

公开(公告)日：2022-07-14

申请号：US17710939

申请日：2022-03-31

Applicant: Applied Materials, Inc.

Inventor： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00 ,  H01L51/42

Abstract: A light-emitting diode display including a substrate having a driving circuitry and a plurality of light emitting diode structures disposed on the substrate. Each light-emitting diode structure has a light emitting diode with a light emission zone having a planar portion, and a pigmentless light extraction layer of a UV-cured ink disposed over the light-emitting diode. The light extraction layer has a gradient in index of refraction along an axis normal to the planar portion, and the index of refraction of the light extraction layer decreases with distance from the planar portion.

公开(公告)号：US11974457B2

公开(公告)日：2024-04-30

申请号：US18132173

申请日：2023-04-07

Applicant: Applied Materials, Inc.

Inventor： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC: H10K50/856 ,  H10K59/122 ,  H10K71/00 ,  H10K102/00

CPC classification number: H10K50/856 ,  H10K59/122 ,  H10K71/00 ,  H10K2102/3026

Abstract: An organic light-emitting diode (OLED) device includes a substrate, a well structure on the substrate with the well structure having a recess with side walls and a floor, a lower metal layer covering the floor and side-walls of the well, an upper conductive layer on the lower metal layer covering the floor of the well and contacting the lower metal layer, the upper conductive layer having outer edges at about an intersection of the side walls and the floor, a dielectric layer formed of an oxide of the lower metal layer covering the side walls of the well without covering the upper conductive layer, a stack of OLED layers covering at least the floor of the well, the upper conductive layer providing an electrode for the stack of OLED layers, and a light extraction layer (LEL) in the well over the stack of OLED layers and the dielectric layer.

公开(公告)号：US11963377B2

公开(公告)日：2024-04-16

申请号：US17710939

申请日：2022-03-31

Applicant: Applied Materials, Inc.

Inventor： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC: H01L51/00 ,  H10K30/35 ,  H10K50/11 ,  H10K50/13 ,  H10K50/856 ,  H10K50/858 ,  H10K71/00 ,  H10K71/15

CPC classification number: H10K50/13 ,  H10K30/35 ,  H10K50/11 ,  H10K50/856 ,  H10K50/858 ,  H10K71/00 ,  H10K71/15 ,  H10K71/311

Abstract: A light-emitting diode display including a substrate having a driving circuitry and a plurality of light emitting diode structures disposed on the substrate. Each light-emitting diode structure has a light emitting diode with a light emission zone having a planar portion, and a pigmentless light extraction layer of a UV-cured ink disposed over the light-emitting diode. The light extraction layer has a gradient in index of refraction along an axis normal to the planar portion, and the index of refraction of the light extraction layer decreases with distance from the planar portion.

公开(公告)号：US11626577B2

公开(公告)日：2023-04-11

申请号：US17152692

申请日：2021-01-19

Applicant: Applied Materials, Inc.

Inventor： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC: H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: An organic light-emitting diode (OLED) device includes a substrate, a well structure on the substrate with the well structure having a recess with side walls and a floor, a lower metal layer covering the floor and side-walls of the well, an upper conductive layer on the lower metal layer covering the floor of the well and contacting the lower metal layer, the upper conductive layer having outer edges at about an intersection of the side walls and the floor, a dielectric layer formed of an oxide of the lower metal layer covering the side walls of the well without covering the upper conductive layer, a stack of OLED layers covering at least the floor of the well, the upper conductive layer providing an electrode for the stack of OLED layers, and a light extraction layer (LEL) in the well over the stack of OLED layers and the dielectric layer.

公开(公告)号：US20210226169A1

公开(公告)日：2021-07-22

申请号：US17152692

申请日：2021-01-19

Applicant: Applied Materials, Inc.

Inventor： Gang Yu ,  Chung-Chia Chen ,  Wan-Yu Lin ,  Hyunsung Bang ,  Lisong Xu ,  Byung Sung Kwak ,  Robert Jan Visser

IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

Abstract: An organic light-emitting diode (OLED) device includes a substrate, a well structure on the substrate with the well structure having a recess with side walls and a floor, a lower metal layer covering the floor and side-walls of the well, an upper conductive layer on the lower metal layer covering the floor of the well and contacting the lower metal layer, the upper conductive layer having outer edges at about an intersection of the side walls and the floor, a dielectric layer formed of an oxide of the lower metal layer covering the side walls of the well without covering the upper conductive layer, a stack of OLED layers covering at least the floor of the well, the upper conductive layer providing an electrode for the stack of OLED layers, and a light extraction layer (LEL) in the well over the stack of OLED layers and the dielectric layer.