公开(公告)号：US20210210573A1

公开(公告)日：2021-07-08

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 ,  G09G3/3233 ,  G09G3/3258 ,  H01L51/52

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：US20210151475A1

公开(公告)日：2021-05-20

申请号：US17071579

申请日：2020-10-15

Applicant: Samsung Display Co., LTD.

Inventor： Sang Sub KIM ,  Keun Woo KIM ,  Ji Yeong SHIN ,  Yong Su LEE ,  Myoung Geun CHA ,  Ki Seok CHOI ,  Sang Gun CHOI

IPC: H01L27/12 ,  H01L27/32 ,  G09G3/32 ,  H01L21/265 ,  H01L21/225 ,  H01L21/28

Abstract: A display device and method of fabricating the same are provided. The display device includes a substrate and a thin-film transistor formed on the substrate. The thin-film transistor includes a lower gate conductive layer disposed on the substrate, and a lower gate insulating film disposed on the lower gate conductive layer The lower gate insulating film includes an upper surface and sidewalls. The thin-film transistor includes an active layer disposed on the upper surface of the lower gate insulating film, the active layer including sidewalls. At least one of the sidewalls of the lower gate insulating film and at least one of the sidewalls of the active layer are aligned with each other.

公开(公告)号：US20210057502A1

公开(公告)日：2021-02-25

申请号：US16857888

申请日：2020-04-24

Applicant: Samsung Display Co., LTD.

Inventor： Keun Woo KIM ,  Sang Sub KIM ,  Hye Na KWAK ,  Doo Na KIM ,  Thanh Tien NGUYEN ,  Yong Su LEE ,  Jae Hwan CHU

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3291 ,  G09G3/3266

Abstract: A display device includes pixels at least one of which includes a light emitting element connected between a first power source and a second power source, a first transistor connected between the first power source and the light emitting element and controlling a driving current flowing through the light emitting element in response to a voltage of a first node, a switching transistor connected to the first node and including and active layer that includes first and second conductive regions spaced apart from each other, first and second channel regions disposed between the first and second conductive regions, and a common conductive region disposed between the first and second channel regions, and a conductive pattern overlapping the active layer to face the common conductive region.

公开(公告)号：US20190305062A1

公开(公告)日：2019-10-03

申请号：US16251639

申请日：2019-01-18

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

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：US20250046257A1

公开(公告)日：2025-02-06

申请号：US18650956

申请日：2024-04-30

Applicant: Samsung Display Co., LTD.

Inventor： Byeong Soo KANG ,  Man Sung KIM ,  Tae Ho KIM ,  Yong Ho SUNG ,  Seung Jun LEE ,  Yong Su LEE ,  Jae Woo LEE ,  Sang Min JEON ,  Seung Hwan CHO

IPC: G09G3/3275

Abstract: A display device includes a circuit layer including emission pixel drivers, and data lines transferring data signals of the emission pixel drivers; a data driver generating the data signals of the emission pixel drivers; and a demultiplexer circuit electrically connected between the data driver and the data lines and including a first demultiplexer transistor turned on by a first demultiplexer control signal and a second demultiplexer transistor turned on by a second demultiplexer control signal. A first data line of the data lines is electrically connected to the data driver through the first demultiplexer transistor and a transfer path shorter than a first extension length. A second data line of the data lines is electrically connected to the data driver through the second demultiplexer transistor and a transfer path longer than or equal to the first extension length.

公开(公告)号：US20230131089A1

公开(公告)日：2023-04-27

申请号：US17886995

申请日：2022-08-12

Applicant: Samsung Display Co., LTD.

Inventor： Seung Jun LEE ,  Yong Su LEE ,  Jae Woo LEE

IPC: G09G3/3233 ,  H01L27/32

Abstract: A display device is provided. A display device comprises a light emitting element disposed on a substrate, a driving transistor that provides a driving current to the light emitting element according to a voltage of a gate electrode, a first transistor supplying a data voltage to the gate electrode of the driving transistor, a first capacitor comprising a first capacitor electrode electrically connected to a first driving voltage line to which a first driving voltage is applied and a common capacitor electrode electrically connected to a first electrode of the first transistor, and a second capacitor comprising a second capacitor electrode electrically connected to the gate electrode of the driving transistor and the common capacitor electrode of the first capacitor, wherein the first capacitor electrode, the common capacitor electrode, and the second capacitor electrode overlap each other in a thickness direction of the substrate.

公开(公告)号：US20220352282A1

公开(公告)日：2022-11-03

申请号：US17868328

申请日：2022-07-19

Applicant: Samsung Display Co., Ltd.

Inventor： Mee Jae KANG ,  Joon Woo BAE ,  Thanh Tien NGUYEN ,  Kyoung Won LEE ,  Yong Su LEE ,  Jae Seob LEE ,  Gyoo Chul JO ,  Myoung Geun CHA

IPC: H01L27/32

Abstract: An exemplary embodiment of the present disclosure provides a display device including: a substrate; a semiconductor layer disposed on the substrate; a first transistor including a first gate electrode disposed on the semiconductor layer; a light-emitting diode connected with the first transistor; and a first layer disposed between the substrate and the semiconductor layer, wherein the semiconductor layer includes a first electrode, a second electrode, and a channel disposed between the first electrode and the second electrode, the channel includes an impurity, and the first layer overlaps the first transistor.

公开(公告)号：US20210150960A1

公开(公告)日：2021-05-20

申请号：US17038256

申请日：2020-09-30

Applicant: Samsung Display Co., Ltd.

Inventor： Keun Woo KIM ,  Tae Wook KANG ,  Hye Na KWAK ,  Doo Na KIM ,  Han Bit KIM ,  Bum Mo SUNG ,  Do Kyeong LEE ,  Yong Su LEE ,  Jae Hwan CHU

IPC: G09G3/20

Abstract: A display device includes: a pixel unit including a plurality of pixels; a scan driver having a plurality of stages and configured to supply a scan signal to the pixel unit; and a light emission control driver having a plurality of stages and configured to supply a light emission control signal to the pixel unit, wherein a first transistor of a plurality of transistors included in at least one of the stages of the scan driver or the stages of the light emission control driver comprises: an active layer pattern on a base layer, and including a channel region forming a channel, and first and second regions on opposite sides of the channel region; and a gate electrode spaced apart from the active layer pattern with a first insulating film therebetween, and overlapping the channel region.

公开(公告)号：US20210066429A1

公开(公告)日：2021-03-04

申请号：US16842239

申请日：2020-04-07

Applicant: Samsung Display Co., Ltd.

Inventor： Sang Sub KIM ,  Mee Jae KANG ,  Han Bit KIM ,  Yong Su LEE

IPC: H01L27/32 ,  G09G3/3266 ,  G09G3/3275 ,  H01L29/786 ,  H01L29/66

Abstract: A display device includes scan lines for scan signals, data lines for data voltages, and pixels connected to the scan and data lines, where each of the pixels includes a first transistor configured to control a driving current which flows from a first electrode to a second electrode according to a voltage applied to a gate electrode, a light-emitting element connected to the second electrode and configured to emit light according to the driving current, and a third transistor electrically connected between the gate electrode and the second electrode, the third transistor includes an active layer including a first region connected to the second electrode of the first transistor, a second region connected to the gate electrode of the first transistor, and a channel region between the first region and the second region, and electrical resistance of the second region is greater than electrical resistance of the first region.

公开(公告)号：US20190326560A1

公开(公告)日：2019-10-24

申请号：US16203784

申请日：2018-11-29

Applicant: Samsung Display Co., Ltd.

Inventor： Myoung Geun CHA ,  Sang Gun CHOI ,  Joon Woo BAE ,  Ji Yeong SHIN ,  Yong Su LEE

IPC: H01L51/56 ,  H01L27/32 ,  H01L51/52 ,  H01L21/308

Abstract: A method for manufacturing a display device including forming a lower electrode on a substrate; depositing a first insulation layer thereon; forming a semiconductor layer that overlaps the lower electrode thereon; depositing a second insulation layer thereon; forming a gate electrode and an etching prevention layer that overlap the semiconductor layer thereon; depositing a third insulation layer thereon; forming a first conductor that overlaps the gate electrode thereon; depositing a fourth insulation layer thereon; forming a photosensitive film patterns thereon by depositing a photosensitive film and exposing and developing the photosensitive film such that portions of the photosensitive film are removed in a first area, a second area, and a third area; etching the third insulation layer using the patterns as an etching mask; etching the etching prevention layer by using the patterns as an etching mask; and etching the first insulation layer using the patterns as an etching mask.