公开(公告)号：US11289562B2

公开(公告)日：2022-03-29

申请号：US16871116

申请日：2020-05-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Atsushi Kitabayashi

IPC: H01L27/32

Abstract: A display apparatus includes pixel units each of which includes a first light emitting portion, a second light emitting portion, and a third light emitting portion, each emitting a different color light. The display apparatus includes a thin film transistor substrate, a first light emitting group disposed on the thin film transistor substrate and including eight first light emitting portions included in different pixel units, a second light emitting group disposed on the thin film transistor substrate and including eight second light emitting portions included in different pixel units, and a third light emitting group disposed on the thin film transistor substrate and including four third light emitting portions included in different pixel units.

公开(公告)号：US11800769B2

公开(公告)日：2023-10-24

申请号：US17148433

申请日：2021-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Wonhee Nam ,  Donghoon Kwak ,  Sukbeom You ,  Atsushi Kitabayashi

IPC: H10K59/35 ,  H10K59/38 ,  H10K59/122

CPC classification number: H10K59/352 ,  H10K59/122 ,  H10K59/38

Abstract: An organic light-emitting display apparatus includes: a substrate; a 1-1st pixel electrode in a 1-1st pixel to emit light of a first wavelength range and a 1-2nd pixel electrode in a 1-2nd pixel to emit light of the first wavelength range. The 1-1st pixel and the 1-2nd pixel are over the substrate; a pixel-defining layer covering an edge of the 1-1st pixel electrode and an edge of the 1-2nd pixel electrode so as to define a 1-1st exposed upper surface and a 1-2nd exposed upper surface; a 1-1st emission layer over the 1-1st pixel electrode and to generate the light of the first wavelength range and a 1-2nd emission layer over the 1-2nd pixel electrode and to generate the light of the first wavelength range; and an opposite electrode over the 1-1st emission layer and the 1-2nd emission layer.

公开(公告)号：US20210335905A1

公开(公告)日：2021-10-28

申请号：US17148433

申请日：2021-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Dongha Lee ,  Wonhee Nam ,  Donghoon Kwak ,  Sukbeom You ,  Atsushi Kitabayashi

IPC: H01L27/32

Abstract: An organic light-emitting display apparatus includes: a substrate; a 1-1st pixel electrode in a 1-1st pixel to emit light of a first wavelength range and a 1-2nd pixel electrode in a 1-2nd pixel to emit light of the first wavelength range. The 1-1st pixel and the 1-2nd pixel are over the substrate; a pixel-defining layer covering an edge of the 1-1st pixel electrode and an edge of the 1-2nd pixel electrode so as to define a 1-1st exposed upper surface and a 1-2nd exposed upper surface; a 1-1st emission layer over the 1-1st pixel electrode and to generate the light of the first wavelength range and a 1-2nd emission layer over the 1-2nd pixel electrode and to generate the light of the first wavelength range; and an opposite electrode over the 1-1st emission layer and the 1-2nd emission layer.

公开(公告)号：US10056434B2

公开(公告)日：2018-08-21

申请号：US15440955

申请日：2017-02-23

Applicant: Samsung Display Co., Ltd.

Inventor： Atsushi Kitabayashi

IPC: H01L27/32 ,  H01L51/00 ,  H01L51/52 ,  H01L51/50

CPC classification number: H01L27/3216 ,  H01L27/3206 ,  H01L27/3246 ,  H01L51/0003 ,  H01L51/5012 ,  H01L51/5036 ,  H01L51/5265 ,  H01L51/56

Abstract: An exemplary embodiment discloses an organic light emitting display panel including a base substrate comprising first pixels configured to emit a light having a first wavelength and second pixels configured to emit a light having a second wavelength and a pixel definition layer disposed on the base substrate. The pixel definition layer includes first and second openings. The first opening corresponds to light emitting areas of n (n is a natural number equal to or greater than 2) first pixels among the first pixels. The second opening corresponds to light emitting areas of m (m is a natural number equal to or greater than 1 and smaller than n) second pixels among the second pixels. An area of the light emitting area of each of the first pixels is smaller than an area of the light emitting area of each of the second pixels.

公开(公告)号：US09799712B2

公开(公告)日：2017-10-24

申请号：US15209799

申请日：2016-07-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Katsushi Kishimoto ,  Atsushi Kitabayashi ,  Jae Kwon Hwang

IPC: H01L21/02 ,  H01L27/32 ,  H01L51/56 ,  H01L51/00 ,  H01L51/50

CPC classification number: H01L27/3246 ,  H01L51/0005 ,  H01L51/0007 ,  H01L51/002 ,  H01L51/0026 ,  H01L51/0036 ,  H01L51/0037 ,  H01L51/0038 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5088 ,  H01L51/56 ,  H01L2227/323

Abstract: A method of manufacturing a light-emitting display device, the method including forming a first electrode on a substrate for each pixel of a plurality of pixels; forming a pixel defining film on the first electrode such that the pixel defining film includes an opening exposing the first electrode; and forming an organic layer on the first electrode, wherein forming the organic layer includes providing an organic solution into the opening of the pixel defining film, and drying the organic solution by performing an exhaust process in a state where an air current is provided by using a drying gas such that the air current is sequentially composed of a position facing the organic solution, a position to which the organic solution is discharged, and a position facing the organic solution.

公开(公告)号：US09601709B2

公开(公告)日：2017-03-21

申请号：US14957750

申请日：2015-12-03

Applicant: Samsung Display Co., Ltd.

Inventor： Atsushi Kitabayashi

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L27/3216 ,  H01L27/3206 ,  H01L27/3246 ,  H01L51/0003 ,  H01L51/5012 ,  H01L51/5036 ,  H01L51/5265 ,  H01L51/56

Abstract: An exemplary embodiment discloses an organic light emitting display panel including a base substrate comprising first pixels configured to emit a light having a first wavelength and second pixels configured to emit a light having a second wavelength and a pixel definition layer disposed on the base substrate. The pixel definition layer includes first and second openings. The first opening corresponds to light emitting areas of n (n is a natural number equal to or greater than 2) first pixels among the first pixels. The second opening corresponds to light emitting areas of m (m is a natural number equal to or greater than 1 and smaller than n) second pixels among the second pixels. An area of the light emitting area of each of the first pixels is smaller than an area of the light emitting area of each of the second pixels.