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公开(公告)号:US20210167050A1
公开(公告)日:2021-06-03
申请号:US17250633
申请日:2019-01-03
Applicant: Samsung Display Co., Ltd.
Inventor: Hyun Min CHO , Dae Hyun KIM , Dong Uk KIM , Jung Hong MIN , Seung A LEE , Hyung Rae CHA
IPC: H01L25/075 , H01L27/12 , H01L33/00 , H01L33/22 , H01L33/62
Abstract: Provided are a light emitting device, a method for manufacturing same, and a display device including the light emitting device. The method for manufacturing the light emitting device comprises the steps of: preparing a lower substrate including a substrate and a buffer semiconductor layer formed on the substrate, forming an element rod by forming a separating layer disposed on the lower substrate, forming a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, and etching the first conductivity type semiconductor layer, the active material layer, the second conductivity type semiconductor layer, and the separating layer in a direction perpendicular to the lower substrate, forming a first insulating layer surrounding an outer circumferential surface of the element rod, forming a second insulating layer surrounding an outer circumferential surface of the first insulating layer and separating the element rod from the lower substrate to form a light emitting element.
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公开(公告)号:US20200286947A1
公开(公告)日:2020-09-10
申请号:US16881788
申请日:2020-05-22
Applicant: Samsung Display Co., Ltd.
Inventor: Jong Hyuk KANG , Hyun Min CHO , Dae Hyun KIM , Joo Yeol LEE , Hyun Deok IM
IPC: H01L27/15 , H01L33/00 , H01L33/40 , F21K9/68 , H01L25/075
Abstract: A light-emitting device includes: a substrate; a unit light-emitting area disposed on the substrate; first and second electrodes disposed in the unit light-emitting area to be separated from each other; a plurality of rod-shaped LEDs disposed between the first and second electrodes; a reflective contact electrode disposed on opposite ends of the rod-shaped LEDs to electrically connect the rod-shaped LEDs to the first and second electrodes; and a light-transmitting structure disposed between the first and second electrodes and extending to cross the rod-shaped LEDs.
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公开(公告)号:US20200066212A1
公开(公告)日:2020-02-27
申请号:US16505708
申请日:2019-07-09
Applicant: Samsung Display Co., Ltd.
Inventor: Sung Hwan KIM , Sang Moo CHOI , Dae Hyun KIM , Soo Hee OH , Dong Sun LEE
IPC: G09G3/3266
Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.
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公开(公告)号:US20200043976A1
公开(公告)日:2020-02-06
申请号:US16275794
申请日:2019-02-14
Applicant: Samsung Display Co., Ltd.
Inventor: Dong Uk KIM , Hyun Min CHO , Keun Kyu SONG , Dae Hyun KIM , Jung Hong MIN , Seung A. LEE , Hyung Rae CHA
Abstract: A display device includes a first pixel and a second pixel; a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer, the light emitting layer including one or more light emitting elements in the first pixel and the second pixel, the color conversion layer including a first color conversion layer in the first pixel and a second color conversion layer in the second pixel. The color filter layer includes a first color filter layer in the first pixel and a second color filter layer in the second pixel, the light emitting elements capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer including first color conversion particles and second color conversion particles.
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公开(公告)号:US20190251898A1
公开(公告)日:2019-08-15
申请号:US16169749
申请日:2018-10-24
Applicant: Samsung Display Co., Ltd.
Inventor: Hyun Min CHO , Dae Hyun KIM , Sung Chul KIM , Hye Yong CHU , Keun Kyu SONG
Abstract: A display device including a substrate and a plurality of pixels in a display region of the substrate. Each of the pixels includes first and second sub-pixels, and each of the first and second sub-pixels has a light emitting region for emitting light. The first sub-pixel includes a first light emitting element in the light emitting region and configured to emit visible light. The second sub-pixel includes a second light emitting element in the light emitting region and configured to emit infrared light and a light receiving element configured to receive the infrared light emitted from the second light emitting element to detect a user's touch. The second light emitting element and the light receiving element in the second sub-pixel are electrically insulated from and optically coupled to each other to form a photo-coupler.
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公开(公告)号:US20240128418A1
公开(公告)日:2024-04-18
申请号:US17769455
申请日:2020-09-24
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Chang Il TAE , Hyun Min CHO , Dae Hyun KIM
CPC classification number: H01L33/62 , H01L25/167 , H01L2933/0066
Abstract: A display device includes a display area including pixel areas; a non-display area; and a pixel provided in each pixel area. The pixel may include first to third areas divided from each other in a direction; first and second sub-electrodes provided in each of the first to third areas, and spaced apart from each other; light emitting elements provided in each of the first to third areas, and disposed between the first and second sub-electrodes; a bridge pattern disposed in each of the first to third areas under the first and second sub-electrodes of the corresponding area with an insulating layer disposed therebetween; a first contact electrode provided in each of the first to third areas on the first sub-electrode of the corresponding area; and a second contact electrode provided in each of the first to third areas on the second sub-electrode of the corresponding area.
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公开(公告)号:US20240102921A1
公开(公告)日:2024-03-28
申请号:US18532379
申请日:2023-12-07
Applicant: Samsung Display Co., LTD.
Inventor: Je Won YOO , Basrur VEIDHES , Dae Hyun KIM , Hyun Min CHO , Jong Won LEE , Joo Yeol LEE
CPC classification number: G01N21/255 , G01N21/1717 , G01R31/2635 , G01R31/2656 , G02B21/06 , G02B21/26 , G02B21/361 , G01N2021/1721
Abstract: An optical inspection apparatus includes a stage that supports a target substrate, the target substrate including a plurality of light emitting elements, a jig that applies an electrical signal to the target substrate, the jig including a regulation resistor, a microscope that generates magnified image data of the target substrate, a camera that captures the magnified image data to generate a color image of the target substrate, and an optical measurement unit that captures the magnified image data of the target substrate to generate a spectrum image and measure optical characteristics of the target substrate.
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公开(公告)号:US20240088198A1
公开(公告)日:2024-03-14
申请号:US18508222
申请日:2023-11-13
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Hyun Min CHO , Dae Hyun KIM , Jin Oh KWAG , Dong Hyun KIM , Keun Kyu SONG , Hyun Deok IM , Sung Chan JO
CPC classification number: H01L27/156 , H01L33/38 , H01L33/62
Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.
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公开(公告)号:US20240038738A1
公开(公告)日:2024-02-01
申请号:US18483444
申请日:2023-10-09
Applicant: Samsung Display Co., LTD.
Inventor: Hyun Min CHO , Dae Hyun KIM , Dong Uk KIM , Jung Hong MIN , Seung A LEE , Hyung Rae CHA
IPC: H01L25/075 , H01L33/00 , H01L27/12 , H01L33/22 , H01L33/62
CPC classification number: H01L25/0753 , H01L33/0093 , H01L27/1214 , H01L33/22 , H01L33/62 , H01L2933/0066
Abstract: Provided are a light emitting device, a method for manufacturing same, and a display device including the light emitting device. The method for manufacturing the light emitting device comprises the steps of: preparing a lower substrate including a substrate and a buffer semiconductor layer formed on the substrate, forming an element rod by forming a separating layer disposed on the lower substrate, forming a first conductivity type semiconductor layer, an active material layer, and a second conductivity type semiconductor layer on the separating layer, and etching the first conductivity type semiconductor layer, the active material layer, the second conductivity type semiconductor layer, and the separating layer in a direction perpendicular to the lower substrate, forming a first insulating layer surrounding an outer circumferential surface of the element rod, forming a second insulating layer surrounding an outer circumferential surface of the first insulating layer and separating the element rod from the lower substrate to form a light emitting element.
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公开(公告)号:US20230376149A1
公开(公告)日:2023-11-23
申请号:US18365388
申请日:2023-08-04
Applicant: SAMSUNG DISPLAY CO., LTD.
Inventor: Hyun Min CHO , Dae Hyun KIM , Sung Chul KIM , Hye Yong CHU , Keun Kyu SONG
CPC classification number: G06F3/0421 , G09G3/3225 , H01L33/20 , H01L33/38 , G06F3/042 , H01L33/32 , G06F3/0412 , H01L33/007 , G09G2380/02
Abstract: A display device including a substrate and a plurality of pixels in a display region of the substrate. Each of the pixels includes first and second sub-pixels, and each of the first and second sub-pixels has a light emitting region for emitting light. The first sub-pixel includes a first light emitting element in the light emitting region and configured to emit visible light. The second sub-pixel includes a second light emitting element in the light emitting region and configured to emit infrared light and a light receiving element configured to receive the infrared light emitted from the second light emitting element to detect a user's touch. The second light emitting element and the light receiving element in the second sub-pixel are electrically insulated from and optically coupled to each other to form a photo-coupler.
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