公开(公告)号：US09893092B2

公开(公告)日：2018-02-13

申请号：US14927269

申请日：2015-10-29

Applicant: Samsung Display Co., Ltd.

Inventor： Junhyun Park ,  Sunghwan Kim ,  Kyoungju Shin ,  Chongchul Chai

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

CPC classification number: H01L27/124 ,  G02F1/1368 ,  G02F2001/134372 ,  G02F2001/136236 ,  H01L27/1214 ,  H01L27/1225 ,  H01L27/127 ,  H01L27/1288 ,  H01L29/66969 ,  H01L29/7869 ,  H01L29/78693

Abstract: Provided is a method of manufacturing TFT substrate, the method including: forming a first conductive layer and a gate electrode; forming a gate insulating layer covering the first conductive layer and the gate electrode; forming a first contact hole exposing the first conductive layer through the gate insulating layer; forming, on the gate insulating layer of a pixel area, an oxide semiconductor pattern comprising a first region which is conductive, a second region which is conductive, and a third region between the first region and the second region; forming a source electrode contacting the first region of the oxide semiconductor pattern, a drain electrode contacting the second region of the oxide semiconductor pattern and a second conductive layer contacting the first conductive layer on a non-pixel area. Each of the first region and the second region overlaps the gate electrode.

公开(公告)号：US09799740B2

公开(公告)日：2017-10-24

申请号：US14989923

申请日：2016-01-07

Applicant: Samsung Display Co., Ltd.

Inventor： Junhyun Park ,  Sunghwan Kim ,  Seyoung Song ,  Kyoungju Shin

IPC: H01L29/15 ,  H01L29/417 ,  H01L27/12 ,  H01L29/786 ,  H01L29/10

CPC classification number: H01L29/41733 ,  H01L27/124 ,  H01L29/1033 ,  H01L29/78618 ,  H01L29/78669 ,  H01L29/78678 ,  H01L29/7869

Abstract: A thin film transistor substrate includes: a substrate; and a thin film transistor including a gate electrode on the substrate, an active layer on the gate electrode, and a source electrode and a drain electrode on the active layer. Within the thin film transistor, at least one of the source electrode and the drain electrode defines a plurality of branch electrodes thereof and a main electrode to which the plurality of branch electrodes is commonly connected. Each of the plurality of branch electrodes overlaps the gate electrode.

公开(公告)号：US12236849B2

公开(公告)日：2025-02-25

申请号：US18323336

申请日：2023-05-24

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Youngwan Seo

IPC: G09G3/32

Abstract: A display device comprises a gate driver configured to receive a first gate driving voltage, configured to receive a second gate driving voltage that is greater than the first gate driving voltage, and configured to transmit a gate signal to a pixel, a data driver configured to transmit a data voltage to the pixel, and an electrostatic protection circuit configured to receive the first gate driving voltage and the data voltage, and including a first electrostatic diode including a first gate terminal connected to the first gate driving voltage, a first terminal connected to the first gate driving voltage, a second terminal connected to the data voltage, and a first lower gate terminal connected to a lower bias voltage.

公开(公告)号：US12075671B2

公开(公告)日：2024-08-27

申请号：US18089938

申请日：2022-12-28

Applicant: Samsung Display Co., Ltd.

Inventor： Kangmoon Jo ,  Dongwoo Kim ,  Sungjae Moon ,  Junhyun Park ,  Ansu Lee

IPC: H10K59/131 ,  G09G3/36 ,  H01L27/12 ,  H10K59/121 ,  H10K59/123 ,  H10K59/124

CPC classification number: H10K59/131 ,  G09G3/3688 ,  H10K59/1213 ,  H10K59/1216 ,  H10K59/123 ,  H10K59/124 ,  G09G2300/0842 ,  G09G2310/0262 ,  H01L27/1214

Abstract: There is provided a display device. The display device includes a first data line on a first interlayer insulating layer over a substrate, a first power line and a second power line on a second interlayer insulating layer, the second interlayer insulating layer covering the first data line, and a plurality of pixels. A first pixel among the plurality of pixels includes a display element including a pixel electrode, an opposite electrode, and an intermediate layer between the pixel electrode and the opposite electrode, the second power line being connected to the opposite electrode, and a driving thin film transistor between the substrate and the display element and including a driving semiconductor layer, a driving gate electrode, a driving source electrode, and a driving drain electrode, the first interlayer insulating layer covering the driving gate electrode, and the first power line being connected to the driving source electrode.

公开(公告)号：US11996054B2

公开(公告)日：2024-05-28

申请号：US18204395

申请日：2023-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jangmi Kang ,  Hyeongseok Kim ,  Junhyun Park ,  Minjae Jeong ,  Mukyung Jeon

IPC: G09G3/3266

CPC classification number: G09G3/3266 ,  G09G2320/0247

Abstract: Provided is a scan driver for applying a bias voltage comprising a kth stage that includes an inputter transmitting an input signal to a first node, a stress reliever disposed between the first node and a second node, a carry signal outputter receiving a high-power-supply voltage and a second clock signal and outputting the second clock signal, an output signal outputter receiving the high-power-supply voltage and a third clock signal and outputting the third clock signal, a maintainer transmitting the first clock signal to a third node, and a stabilizer applying a first low-power-supply voltage to the third node and the high-power-supply voltage to the first node. The first and second clock signals selectively toggle between the high-power-supply voltage and the first low-power-supply voltage, the third clock signal selectively toggles between the high-power-supply voltage and a second low-power-supply voltage, and the bias voltage is adjusted as the second low-power-supply voltage varies.

公开(公告)号：US20240153460A1

公开(公告)日：2024-05-09

申请号：US18502437

申请日：2023-11-06

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Hyeongseok Kim ,  Heejean Park ,  Sunhwa Lee ,  Mukyung Jeon

IPC: G09G3/325 ,  G09G3/20 ,  H10K59/35

CPC classification number: G09G3/325 ,  G09G3/2003 ,  H10K59/351 ,  H10K2102/351

Abstract: A display device includes a display area and a peripheral area disposed adjacent to the display area, a display element arranged in the display area, a first semiconductor layer, a gate conductive layer, a first connection electrode layer, and a second connection electrode layer, sequentially arranged on a substrate, and a bias voltage supply line arranged in the peripheral area. The bias voltage supply line includes a top supply line and a bottom supply line arranged on different layers, and the top supply line and the second connection electrode layer are arranged on a same layer.

公开(公告)号：US11882738B2

公开(公告)日：2024-01-23

申请号：US17567254

申请日：2022-01-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Junhyun Park ,  Ansu Lee ,  Dongwoo Kim ,  Sungjae Moon ,  Kangmoon Jo

IPC: H10K59/131 ,  H10K50/844 ,  H10K50/842 ,  H10K59/38

CPC classification number: H10K59/131 ,  H10K50/844 ,  H10K50/8426 ,  H10K59/38

Abstract: A display device that includes a substrate having a display area configured for displaying an image and a peripheral area positioned outside of the display area. A first thin film transistor is disposed on the display area. A display element is electrically connected to the first thin film transistor. The display element includes a pixel electrode, an intermediate layer, and an opposite electrode. An embedded driving circuit portion is disposed on the peripheral area. The embedded driving circuit portion includes a second thin film transistor. A common voltage supply line is disposed on the peripheral area. The common voltage supply line is positioned closer to the display area than the embedded driving circuit portion. The common voltage supply line is electrically connected to the opposite electrode.

公开(公告)号：US11875741B2

公开(公告)日：2024-01-16

申请号：US17709906

申请日：2022-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Junhyun Park ,  Jangmi Kang ,  Minjae Jeong ,  Meehye Jung

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/08

Abstract: A pixel includes: a light emitting diode; a first transistor; a first capacitor connected between a first node and a gate electrode of the first transistor; a second transistor including a first electrode electrically connected to the gate electrode of the first transistor, a second electrode and a gate electrode which receives a first scan signal; and a third transistor including a first electrode electrically connected to the second electrode of the second transistor, a second electrode electrically connected to a third voltage line, and a gate electrode which receives a second scan signal. During an initialization period, an initialization voltage provided from the third voltage line is provided to the gate electrode of the first transistor through the third and second transistors, and, when the initialization period is terminated, at least one of the second transistor and the third transistor is turned off.

公开(公告)号：US11862072B2

公开(公告)日：2024-01-02

申请号：US17970623

申请日：2022-10-21

Applicant: Samsung Display Co., Ltd.

Inventor： Minjae Jeong ,  Jangmi Kang ,  Hyeongseok Kim ,  Junhyun Park ,  Mukyung Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/043 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A pixel includes a light emitting element, a first transistor including a first electrode electrically connected to a first voltage line which supplies a first driving voltage, a second electrode electrically connected to the light emitting element, and a gate electrode connected to a first node, a second transistor connected between the first node and a second node and including a gate electrode connected to a first scan line, a third transistor connected between the second electrode of the first transistor and the second node and including a gate electrode connected to a second scan line, and a booting capacitor connected between the second node and the second scan line.

公开(公告)号：US11804171B2

公开(公告)日：2023-10-31

申请号：US17889303

申请日：2022-08-16

Applicant: Samsung Display Co., LTD.

Inventor： Junhyun Park ,  Hyeongseok Kim ,  Jangmi Kang ,  Minjae Jeong ,  Mukyung Jeon

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2310/0275

Abstract: A pixel circuit includes a light emitting element, a driving switching element, a storage capacitor, a data voltage applying switching element and a first leakage compensation switching element. The driving switching element is configured to apply a driving current to the light emitting element. The storage capacitor is connected to a control electrode of the driving switching element. The data voltage applying switching element is configured to apply a data voltage to the storage capacitor. The first leakage compensation switching element is disposed between the storage capacitor and the data voltage applying switching element.