公开(公告)号：US20240346989A1

公开(公告)日：2024-10-17

申请号：US18752121

申请日：2024-06-24

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINSUNG AN ,  SUNGHO KIM ,  MINWOO WOO ,  WANGWOO LEE ,  JEONG-SOO LEE ,  SUGWOO JUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0278 ,  G09G2320/0247

Abstract: A display panel includes: a light emitting element, a driving switching element, a bias switching element and a bias control switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is connected to a first electrode of the driving switching element and configured to apply a bias voltage to the first electrode of the driving switching element. The bias control switching element is connected to a first electrode of the bias switching element and configured to apply the bias voltage to the first electrode of the bias switching element.

公开(公告)号：US20220123122A1

公开(公告)日：2022-04-21

申请号：US17564456

申请日：2021-12-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： ILJEONG LEE ,  YOUNGWOO PARK ,  WANGWOO LEE

IPC: H01L29/423 ,  H01L27/12 ,  H01L29/40 ,  H01L29/66 ,  H01L29/786

Abstract: A thin film transistor substrate includes a substrate and a semiconductor layer disposed on the substrate. The semiconductor layer includes a channel region, a source region and a drain region. The thin film transistor further includes a gate electrode disposed on the semiconductor layer and that includes a lower surface and an upper surface. The thin film transistor includes a gate insulating layer disposed between the gate electrode and the semiconductor layer, and a first insulating layer disposed on the substrate. The first insulating layer exposes the upper surface of the gate electrode and surrounds the gate electrode. The gate electrode may have a shape in which the width of an upper surface thereof is greater than the width of a lower surface thereof.

公开(公告)号：US20220392991A1

公开(公告)日：2022-12-08

申请号：US17710017

申请日：2022-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： MINWOO WOO ,  JINSUNG AN ,  SEUNGHYUN LEE ,  WANGWOO LEE ,  JISEON LEE

IPC: H01L27/32

Abstract: A display device includes a first pixel, a second pixel, and a third pixel. The first pixel includes a first light emitting element of a first group including a first pixel electrode disposed in a first area, a second light emitting element of the first group including a second pixel electrode electrically connected to the first pixel electrode and disposed in the first area, and a first pixel circuit electrically connected to the first light emitting element of the first group and the second light emitting element of the first group and disposed in the second area.

公开(公告)号：US20220343817A1

公开(公告)日：2022-10-27

申请号：US17648959

申请日：2022-01-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINSUNG AN ,  SUNGHO KIM ,  SEOKJE SEONG ,  MINWOO WOO ,  SEUNGHYUN LEE ,  WANGWOO LEE ,  JISEON LEE

IPC: G09G3/00 ,  H01L27/32

Abstract: A display panel includes a plurality of first pixels on a first region, a plurality of second pixels on a second region, and a test circuit. The second region has a transmittance less than a transmittance of the first region. The test circuit provides one or more test voltages to the first pixels and the second pixels. The test circuit includes a first test circuit and a second test circuit. The first test circuit provides the first pixels with a first voltage, and the second test circuit provides the second pixels with a second voltage different from the first voltage.

公开(公告)号：US20210367212A1

公开(公告)日：2021-11-25

申请号：US17138124

申请日：2020-12-30

Applicant: Samsung Display Co., LTD.

Inventor： IL-JOO KIM ,  GUNWOO KO ,  YONG-HWAN KIM ,  TAEKON KIM ,  HYUNYOUNG KIM ,  JONG-RYUK PARK ,  WANGWOO LEE ,  HYUNGJUN LIM ,  YOUNGBAE JUNG ,  JUNG-HYUN CHO

IPC: H01L51/52 ,  G06F3/041 ,  H01L27/32

Abstract: A display device includes a display layer including an active area including a plurality of pixel areas, and a peripheral area adjacent to the active area, an insulating layer disposed on the display layer, the insulating layer including at least one first opening overlapping the plurality of pixel areas, and at least one second opening in the peripheral area, a refractive index layer disposed on the insulating layer, having a refractive index greater than a refractive index of the insulating layer, and spaced apart from the at least one second opening, and a polarizing layer overlapping the refractive index layer. At least a portion of the polarizing layer overlaps the at least one second opening.

公开(公告)号：US20230335044A1

公开(公告)日：2023-10-19

申请号：US18069418

申请日：2022-12-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： JINSUNG AN ,  SUNGHO KIM ,  MINWOO WOO ,  WANGWOO LEE ,  JEONG-SOO LEE ,  SUGWOO JUNG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0278 ,  G09G2320/0247

Abstract: A display panel includes: a light emitting element, a driving switching element, a bias switching element and a bias control switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is connected to a first electrode of the driving switching element and configured to apply a bias voltage to the first electrode of the driving switching element. The bias control switching element is connected to a first electrode of the bias switching element and configured to apply the bias voltage to the first electrode of the bias switching element.

公开(公告)号：US20230263011A1

公开(公告)日：2023-08-17

申请号：US18070980

申请日：2022-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： HYERI CHO ,  JINSUNG AN ,  MINWOO WOO ,  SEUNGHYUN LEE ,  WANGWOO LEE ,  KYEONGWOO JANG

IPC: H01L33/00

CPC classification number: H01L27/3246

Abstract: A display panel includes: a base layer including a first region, a circuit layer including a first intermediate insulation layer disposed on the base layer and a compensation layer disposed on the base layer, a light emission element layer including a first light emission element having a first electrode and disposed in the first region, and disposed on the circuit layer, and a first spacer disposed on the circuit layer, and overlapping the compensation layer in a plan view. The first region includes an element region overlapping the first electrode and a transmission region not overlapping the first electrode, and the first spacer and the compensation layer are each disposed in the transmission region.

公开(公告)号：US20230247875A1

公开(公告)日：2023-08-03

申请号：US18098954

申请日：2023-01-19

Applicant: Samsung Display Co., Ltd.

Inventor： MINWOO WOO ,  WANGWOO LEE ,  SUNGHO KIM ,  JINSUNG AN ,  SEUNGHYUN LEE ,  KYEONGWOO JANG ,  HYERI CHO

IPC: H10K59/131 ,  H10K59/80

CPC classification number: H10K59/131 ,  H10K59/8791

Abstract: A display panel includes a base layer including a component area, a circuit layer disposed on the base layer, and a light emitting device layer including a first light emitting device disposed in the component area. The circuit layer includes first conductive patterns each extending in a first direction, at least one first intermediate insulating layer disposed on the first conductive patterns, and second conductive patterns disposed on the at least one first intermediate insulating layer and each extending in a second direction intersecting the first direction. Each of the first conductive patterns and the second conductive patterns overlap the first light emitting device in a plan view.

公开(公告)号：US20220149133A1

公开(公告)日：2022-05-12

申请号：US17360081

申请日：2021-06-28

Applicant: Samsung Display Co., Ltd.

Inventor： SEUNGHYUN LEE ,  SUNGHO KIM ,  SEOKJE SEONG ,  JINSUNG AN ,  MINWOO WOO ,  WANGWOO LEE ,  HYUNG JOO JUN

IPC: H01L27/32

Abstract: An organic light emitting display device includes a first transistor including a first active region and a first gate electrode disposed on the first active region, a third transistor including a third lower gate electrode disposed on the first gate electrode, a third active region disposed on the third lower gate electrode, and a third upper gate electrode disposed on the third active region, and a fourth transistor including a fourth active region disposed in the same layer as the first active region and a fourth gate electrode disposed on the fourth active region. The first transistor is a first-type transistor, and the fourth transistor is a second-type transistor different from the first-type transistor.

公开(公告)号：US20250081820A1

公开(公告)日：2025-03-06

申请号：US18790774

申请日：2024-07-31

Applicant: Samsung Display Co., Ltd.

Inventor： JAESOO JUNG ,  KOHEI EBISUNO ,  MOOSOON KO ,  SUNGGEUN BAE ,  SE WAN SON ,  SANGHOON OH ,  MINWOO WOO ,  KWANHEE LEE ,  WANGWOO LEE ,  JISEON LEE

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122 ,  H10K59/88

Abstract: A display panel includes a base layer, a pixel defining film on the base layer and including an inorganic material, a bank layer on the pixel defining film and having a plurality of pixel openings, a plurality of light-emitting elements respectively located in the plurality of pixel openings, each of the plurality of light-emitting elements including an anode, a light-emitting pattern, and a cathode, the cathode being in contact with the bank layer, and a lower encapsulation pattern on the bank layer and including a portion on the bank layer. The lower encapsulation pattern includes a first lower encapsulation pattern on the cathode and the bank layer, the first lower encapsulation pattern including a first material, and a second lower encapsulation pattern on the first lower encapsulation pattern, the second lower encapsulation pattern including a second material different from the first material, and a tip portion.