公开(公告)号：US20200082755A1

公开(公告)日：2020-03-12

申请号：US16684686

申请日：2019-11-15

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM ,  Sooyoung PARK ,  Joonghyun PARK ,  Dongwoo KIM ,  Kyoung-Ju SHIN

IPC: G09G3/3233 ,  G09G3/3283

Abstract: A display device includes: pixels to emit light of various intensity in accordance with driving signals; data lines to communicate the driving signals to the pixels; scan lines to communicate scan signals to select at least one of the pixels to receive the driving signal; and a power supply to supply at least one driving voltage to the pixels. The at least one pixel includes: a switching transistor including an oxide transistor, the switching transistor having a first electrode connected to the data line, a second electrode connected to a first node, and first and second gate electrodes, each of which is connected to one of the scan lines, and a driving transistor including a poly-silicon transistor, and the driving transistor being connected between the power supply and an organic light emitting diode.

公开(公告)号：US20170160616A1

公开(公告)日：2017-06-08

申请号：US15221785

申请日：2016-07-28

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM

IPC: G02F1/1362 ,  H01L29/786 ,  H01L29/417 ,  G02F1/1343 ,  H01L21/027 ,  G02F1/1368 ,  G02F1/1333 ,  H01L27/12 ,  H01L21/306

CPC classification number: H01L29/78696 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/13624 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2201/40 ,  H01L21/0273 ,  H01L21/30604 ,  H01L27/1251 ,  H01L27/1288 ,  H01L29/41733

Abstract: A liquid crystal display device and a method of manfuacturing a liquid crystal display device, the liquid crystal display device including a first substrate and a second subdstrate spaced apart from each other; a liquid crystal layer between the first substrate and the second substrate; a gate line, a data line, a first sub-pixel electrode, and a second sub-pixel elecrode on the first substrate; a first switching element connected to the gate line, the data line, and the first sub-pixel electrode; and a second switching element connected to the gate line, the first sub-pixel electrode, and the second sub-pixel electrode.

公开(公告)号：US20160342005A1

公开(公告)日：2016-11-24

申请号：US15072849

申请日：2016-03-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM ,  Gunwoo YANG

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345

Abstract: A liquid crystal display which enhances an aperture ratio and stabilizes a storage voltage includes a first substrate, a second substrate opposing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a gate line, a data line, a first sub-pixel electrode, and a second sub-pixel electrode on the first substrate, a first transistor connected to the gate line, the data line, and the first sub-pixel electrode, and a second transistor connected to the gate line, the data line, and the second sub-pixel electrode and including a source electrode, a drain electrode and at least one floating electrode between the source electrode and the drain electrode.

Abstract translation: 提高孔径比并稳定存储电压的液晶显示器包括第一基板，与第一基板相对的第二基板，第一基板和第二基板之间的液晶层，栅极线，数据线，第一基板 子像素电极和第二子像素电极，连接到栅极线，数据线和第一子像素电极的第一晶体管和连接到栅极线的第二晶体管，数据 线和第二子像素电极，并且在源极和漏极之间包括源电极，漏电极和至少一个浮置电极。

公开(公告)号：US20240324349A1

公开(公告)日：2024-09-26

申请号：US18533518

申请日：2023-12-08

Applicant: Samsung Display Co., LTD.

Inventor： Myounggeun CHA ,  Sanggun CHOI ,  Keunwoo KIM

IPC: H10K59/131

CPC classification number: H10K59/131 ,  H10K59/1216

Abstract: A display apparatus includes a first transistor including a first semiconductor layer including a silicon semiconductor and a first gate electrode below the first semiconductor layer, where the first transistor controls a magnitude of a driving current flowing to a display element, a data line which transmits a data voltage, a second transistor including a second semiconductor layer including an oxide semiconductor, where the second transistor connects the data line to the first transistor in response to a scan signal, and a first capacitor including a first electrode and a second electrode, where the first electrode is disposed on the first semiconductor layer, and the second electrode at least partially overlaps the first electrode.

公开(公告)号：US20220399420A1

公开(公告)日：2022-12-15

申请号：US17679691

申请日：2022-02-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehwan CHU ,  Meejae KANG ,  Keunwoo KIM ,  Doona KIM ,  Sangsub KIM ,  Hanbit KIM ,  Dokyeong LEE ,  Yongsu LEE

IPC: H01L27/32

Abstract: A method of manufacturing a display apparatus includes forming a first photosensitive pattern and a second photosensitive pattern of different thicknesses on an active layer; forming a driving semiconductor layer and a compensation semiconductor layer using the first photosensitive pattern and the second photosensitive pattern as masks to etch the active layer; exposing an upper surface of the driving semiconductor layer by etching the first photosensitive pattern and forming a third photosensitive pattern by etching at least a portion of the second photosensitive pattern; forming a first insulating layer on the driving semiconductor layer and the third photosensitive pattern; exposing an upper surface of the compensation semiconductor layer by stripping the third photosensitive pattern; and forming a second insulating layer on the first insulating layer and the compensation semiconductor layer.

公开(公告)号：US20210407414A1

公开(公告)日：2021-12-30

申请号：US17155925

申请日：2021-01-22

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM ,  Taewook KANG

IPC: G09G3/3241 ,  G09G3/3291 ,  G09G3/3266

Abstract: A pixel includes a light-emitting element, a driving transistor that controls an amount of a driving current flowing to the light-emitting element according to a gate-source voltage, first and second compensation transistors that operate in response to a first scan signal and are electrically connected in series with each other between a gate and a drain of the driving transistor, first and second gate initialization transistors that operate in response to a second scan signal and are electrically connected in series with each other between a voltage line and the gate of the driving transistor, and a node connection transistor that connects a first floating node and a second floating node to each other in response to the second scan signal. The first floating node is between the first and second compensation transistors, and the second floating node is between the first and second gate initialization transistors.

公开(公告)号：US20210390905A1

公开(公告)日：2021-12-16

申请号：US17129689

申请日：2020-12-21

Applicant: Samsung Display Co., Ltd.

Inventor： Keunwoo KIM

IPC: G09G3/3233 ,  H01L27/32

Abstract: A pixel circuit includes a first scan thin-film transistor (TFT) receiving a first data voltage, a first storage capacitor maintaining a first gate voltage corresponding to the first data voltage, a first driving TFT having a gate connected to the first storage capacitor and controlling the amount of a first driving current based on the first gate voltage, a first light-emitting device emitting light according to the first driving current, a second scan TFT receiving a second data voltage in response to an emission control signal, a second driving TFT having a gate connected to the gate of the first driving TFT and a source receiving the second data voltage and controlling the amount of a second driving current based on a difference between the first gate voltage and the second data voltage, and a second light-emitting device emitting light according to the second driving current.

公开(公告)号：US20190204696A1

公开(公告)日：2019-07-04

申请号：US16353214

申请日：2019-03-14

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM

IPC: G02F1/1362 ,  G02F1/1368 ,  G02F1/1343 ,  G09G3/36

CPC classification number: G02F1/136213 ,  G02F1/134309 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2310/0205

Abstract: A liquid crystal display device includes at least one pixel that includes first, second, third, and fourth switches connected to at least one gate line and at least one data line, a first sub-pixel electrode connected to the first switch, a second sub-pixel electrode connected to the second switch, a third sub-pixel electrode connected to the third switch, a fourth sub-pixel electrode connected to the fourth switch, a first capacitor connected between a gate electrode and a source electrode of the first switch, a second capacitor connected between a gate electrode and a source electrode of the second switch, a third capacitor connected between a gate electrode and a source electrode of the third switch, and a fourth capacitor connected between a gate electrode and a source electrode of the fourth switch. At least two of the first, second, third, and fourth capacitors have different capacitance values from one another.

公开(公告)号：US20170293186A1

公开(公告)日：2017-10-12

申请号：US15448673

申请日：2017-03-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/134309 ,  G02F1/133707 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/133757 ,  G02F2001/134345 ,  G02F2001/136236 ,  G02F2001/136245 ,  G02F2001/13629 ,  G02F2201/123 ,  G02F2202/10 ,  H01L27/124 ,  H01L27/1248 ,  H01L27/1251

Abstract: A liquid crystal display device includes a first substrate spaced from a second substrate, a liquid crystal layer between the first and second substrates, a gate line, a data line, a first sub-pixel electrode, and a second sub-pixel electrode on the first substrate. The display device also includes a first switch and a second switch. The first switch is connected to the gate line, the data line, and the first sub-pixel electrode. The second switch is connected to the gate line, the data line, and the second sub-pixel electrode. The second switch includes a first gate electrode connected to the gate line and a second gate electrode not connected to the gate line.

公开(公告)号：US20170139294A1

公开(公告)日：2017-05-18

申请号：US15225007

申请日：2016-08-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Keunwoo KIM

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1368

CPC classification number: G02F1/136213 ,  G02F1/134309 ,  G02F1/13624 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2310/0205

Abstract: A liquid crystal display device includes at least one pixel that includes first, second, third, and fourth switches connected to at least one gate line and at least one data line, a first sub-pixel electrode connected to the first switch, a second sub-pixel electrode connected to the second switch, a third sub-pixel electrode connected to the third switch, a fourth sub-pixel electrode connected to the fourth switch, a first capacitor connected between a gate electrode and a source electrode of the first switch, a second capacitor connected between a gate electrode and a source electrode of the second switch, a third capacitor connected between a gate electrode and a source electrode of the third switch, and a fourth capacitor connected between a gate electrode and a source electrode of the fourth switch. At least two of the first, second, third, and fourth capacitors have different capacitance values from one another.