公开(公告)号：US12225770B2

公开(公告)日：2025-02-11

申请号：US18525662

申请日：2023-11-30

Applicant: Samsung Display Co., LTD.

Inventor： Keun Woo Kim ,  Tae Wook Kang ,  Han Bit Kim ,  Bum Mo Sung ,  Do Kyeong Lee ,  Jae Seob Lee

IPC: H10K59/121 ,  H01L21/02 ,  H01L27/12 ,  H01L29/423 ,  H01L29/66 ,  H01L29/786 ,  H10K59/12

Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 μm to about 2 μm, and a length of the channel of the third transistor is in a range of about 1 μm to about 2.5 μm.

公开(公告)号：US11616108B2

公开(公告)日：2023-03-28

申请号：US16661329

申请日：2019-10-23

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Joon Woo Bae ,  Mee Jae Kang ,  Thanh Tien Nguyen ,  Kyoung Won Lee ,  Yong Su Lee ,  Jae Seob Lee ,  Gyoo Chul Jo ,  Myoung Geun Cha

IPC: H01L27/32

Abstract: An organic light emitting diode display includes a substrate, an overlap layer on the substrate, a semiconductor layer on the overlap layer, a first gate conductor on the semiconductor layer, a second gate conductor on the first gate conductor, a data conductor on the second gate conductor, a driving transistor on the overlap layer, and an organic light emitting diode connected with the driving transistor. The driving transistor includes, in the semiconductor layer, a first electrode, a second electrode, with a channel therebetween. A gate electrode of the first gate conductor overlaps the channel. The overlap layer overlaps the channel of the driving transistor and at least a portion of the first electrode. A storage line of the second gate conductor receives a driving voltage through a driving voltage line in the data conductor. The overlap layer receives a constant voltage.

公开(公告)号：US11380746B2

公开(公告)日：2022-07-05

申请号：US17208571

申请日：2021-03-22

Applicant: Samsung Display Co., Ltd.

Inventor： Seong Min Wang ,  Young-In Hwang ,  Yong Ho Yang ,  Yong Su Lee ,  Jae Seob Lee ,  Gyoo Chul Jo

IPC: H01L27/32 ,  H01L51/52 ,  G09G3/3233 ,  G09G3/3258 ,  H01L51/00

Abstract: A display may include flexible substrate, a blocking layer on the flexible substrate, a pixel on the flexible substrate and the blocking layer, and a scan line, a data line, a driving voltage line, and an initialization voltage line connected to the pixel. The pixel may include an organic light emitting diode, a switching transistor connected to the scan line, and a driving transistor to apply a current to the organic light emitting diode. The blocking layer is in an area that overlaps the switching transistor on a plane, and between the switching transistor and the flexible substrate, and receives a voltage through a contact hole that exposes the blocking layer.

公开(公告)号：US20210280652A1

公开(公告)日：2021-09-09

申请号：US17062299

申请日：2020-10-02

Applicant: Samsung Display Co., LTD.

Inventor： Keun Woo Kim ,  Tae Wook Kang ,  Han Bit Kim ,  Bum Mo Sung ,  Do Kyeong Lee ,  Jae Seob Lee

IPC: H01L27/32

Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 μm to about 2 μm, and a length of the channel of the third transistor is in a range of about 1 μm to about 2.5 μm.

公开(公告)号：US09899558B2

公开(公告)日：2018-02-20

申请号：US15152980

申请日：2016-05-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Min-Sung Kim ,  Thanh Tien Nguyen ,  Jae Seob Lee

IPC: H01L29/10 ,  H01L31/153 ,  H01L27/12 ,  H01L31/0296 ,  H01L31/0232 ,  H01L27/32

CPC classification number: H01L31/153 ,  H01L27/1225 ,  H01L27/3262 ,  H01L31/02327 ,  H01L31/0296

Abstract: A disclosed photosensor includes: a first electrode layer including a reflection part having an inclination surface; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values. Further, the disclosed display device includes a plurality of pixel areas positioned on a substrate, and a sensor unit formed in at least some pixel areas among the plurality of pixel areas.

公开(公告)号：US11615744B2

公开(公告)日：2023-03-28

申请号：US17141808

申请日：2021-01-05

Applicant: Samsung Display Co., Ltd.

Inventor： Keun Woo Kim ,  Tae Wook Kang ,  Doo Na Kim ,  Han Bit Kim ,  Jae Seob Lee ,  Jae Hwan Chu

IPC: G09G3/3233 ,  H01L27/32 ,  H01L29/786

Abstract: Provided is a display device. The display device comprises a substrate, and a plurality of sub-pixels disposed on the substrate and including alight emitting element and a sub-pixel circuit driving the light emitting element. The sub-pixel circuit comprises a driving transistor controlling a driving current flowing through the light emitting element, a first transistor and a second transistor connected in series between a first node, which is a drain electrode of the driving transistor, and a second node, which is a gate electrode of the driving transistor, to receive the same scan signal, and a gate auxiliary electrode disposed on a gate electrode of the first transistor or the second transistor. The gate auxiliary electrode is connected to the gate electrode of the first transistor or the second transistor.

公开(公告)号：US11164526B2

公开(公告)日：2021-11-02

申请号：US16811514

申请日：2020-03-06

Applicant: Samsung Display Co., LTD.

Inventor： Keun Woo Kim ,  Mee Jae Kang ,  Han Bit Kim ,  Thanh Tien Nguyen ,  Yong Su Lee ,  Jae Seob Lee

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A display device including pixels is provided. Each of the pixels includes a first transistor having a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor having a gate electrode connected to a first scan line, a first electrode connected to a data line, and a second electrode connected to the second node, and a third transistor having a first gate electrode connected to the first scan line, a second gate electrode, a first electrode connected to the first node, and a second electrode connected to the third node. The second gate electrode may be in a floating state, and the third transistor may be aged to alleviate a leakage current in order to improve image generation.

公开(公告)号：US10896943B2

公开(公告)日：2021-01-19

申请号：US15376412

申请日：2016-12-12

Applicant: Samsung Display Co., Ltd.

Inventor： Min-Sung Kim ,  Thanh Tien Nguyen ,  Jae Seob Lee ,  Ki Ju Im

IPC: H01L27/32 ,  H05B33/02 ,  G06F3/041 ,  H01L51/00 ,  H05B33/10 ,  H01L51/52 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

Abstract: A display device is disclosed. In one aspect, the display device includes a flexible substrate including a first region, a second region separated from the first region, and a bending region positioned between the first and second regions. The bending region is configured to be bent so as to have a plurality of different curvatures depending on degrees of bending of the flexible substrate. The display device also includes a first display unit positioned in the first region, a second display unit separated from the first display unit and positioned in the second region and an encapsulation layer positioned over the flexible substrate with the first and second display units interposed therebetween. The encapsulation layer directly contacts the bending region of the flexible substrate.

公开(公告)号：US10038041B2

公开(公告)日：2018-07-31

申请号：US15261787

申请日：2016-09-09

Applicant: Samsung Display Co., Ltd.

Inventor： Thanh Tien Nguyen ,  Min-Sung Kim ,  Jae Seob Lee ,  Ki Ju Im

IPC: H01L27/32 ,  H01L51/00 ,  G09G3/3225

CPC classification number: H01L27/3258 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2380/02 ,  H01L51/0097 ,  Y02E10/549 ,  Y02P70/521

Abstract: A display device and a method of manufacturing the same are disclosed. In one aspect, the display device includes a flexible substrate, a thin film transistor (TFT) disposed over the flexible substrate, a first electrode disposed over the TFT, and a second electrode disposed over the first electrode. The flexible substrate includes a first incompressible liquid layer.