公开(公告)号：US09786697B2

公开(公告)日：2017-10-10

申请号：US15182265

申请日：2016-06-14

Applicant: LG DISPLAY CO., LTD.

Inventor： Sohyung Lee ,  Youngyoung Chang ,  Kwonshik Park ,  Mincheol Kim ,  Jeongsuk Yang

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/13 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1343

CPC classification number: H01L27/1255 ,  G02F1/136213 ,  G02F1/1368 ,  G02F2001/134372 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/3265

Abstract: A thin film transistor (TFT) substrate and a display device using the same are disclosed. The TFT substrate includes a first TFT including a polycrystalline semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode deposited on a substrate, a second TFT separated from the first TFT, the second TFT including a second gate electrode, an oxide semiconductor layer, a second source electrode, and a second drain electrode deposited on the first gate electrode, and a plurality of storage capacitors separated from the first and second TFTs, each storage capacitor including a first dummy semiconductor layer, a first gate insulating layer on the first dummy semiconductor layer, a first dummy gate electrode on the first gate insulating layer, and an intermediate insulating layer on the first dummy gate electrode.

公开(公告)号：US10163944B2

公开(公告)日：2018-12-25

申请号：US15699126

申请日：2017-09-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Sohyung Lee ,  Youngyoung Chang ,  Kwonshik Park ,  Mincheol Kim ,  Jeongsuk Yang

IPC: H01L27/12 ,  H01L27/32 ,  G02F1/13 ,  G02F1/1362 ,  G02F1/1368 ,  G02F1/1343

Abstract: A thin film transistor (TFT) substrate and a display device using the same are disclosed. The TFT substrate includes a first TFT including a polycrystalline semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode deposited on a substrate, a second TFT separated from the first TFT, the second TFT including a second gate electrode, an oxide semiconductor layer, a second source electrode, and a second drain electrode deposited on the first gate electrode, and a plurality of storage capacitors separated from the first and second TFTs, each storage capacitor including a first dummy semiconductor layer, a first gate insulating layer on the first dummy semiconductor layer, a first dummy gate electrode on the first gate insulating layer, and an intermediate insulating layer on the first dummy gate electrode.

公开(公告)号：US20160300528A1

公开(公告)日：2016-10-13

申请号：US15184599

申请日：2016-06-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Namyong Kong ,  Woosup Shin ,  Kwonshik Park ,  Chonghun Park ,  Uijin Chung

IPC: G09G3/3233 ,  H01L29/786 ,  G09G3/325 ,  H01L27/32 ,  G09G3/3266 ,  G09G3/3283

CPC classification number: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/043 ,  G09G2300/0469 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/1214 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/78645

Abstract: An organic light emitting display includes a display panel, which includes a plurality of pixels and displays an image, and a data driving circuit differently outputting a compensation voltage depending on a sensing value based on a driving current. Each of the plurality of pixels includes an organic light emitting diode, a driving thin film transistor (TFT) having a double gate structure including a main gate electrode and a sub-gate electrode, a switching TFT applying a data voltage determining the driving current to the main gate electrode of the driving TFT, and a compensation TFT applying the compensation voltage for compensating for a shift amount of a threshold voltage of the driving TFT to the sub-gate electrode of the driving TFT.

Abstract translation: 有机发光显示器包括：显示面板，其包括多个像素并显示图像;以及数据驱动电路，其基于驱动电流根据感测值不同地输出补偿电压。 多个像素中的每一个包括有机发光二极管，具有包括主栅电极和子栅电极的双栅极结构的驱动薄膜晶体管（TFT），施加确定驱动电流的数据电压的开关TFT 驱动TFT的主栅电极和补偿TFT，其补偿用于补偿驱动TFT的阈值电压的偏移量到驱动TFT的子栅电极的补偿电压。

公开(公告)号：US20180012913A1

公开(公告)日：2018-01-11

申请号：US15699126

申请日：2017-09-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Sohyung Lee ,  Youngyoung Chang ,  Kwonshik Park ,  Mincheol Kim ,  Jeongsuk Yang

IPC: H01L27/12 ,  G02F1/1362 ,  H01L27/32 ,  G02F1/1343 ,  G02F1/1368

CPC classification number: H01L27/1255 ,  G02F1/136213 ,  G02F1/1368 ,  G02F2001/134372 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/322 ,  H01L27/3265

Abstract: A thin film transistor (TFT) substrate and a display device using the same are disclosed. The TFT substrate includes a first TFT including a polycrystalline semiconductor layer, a first gate electrode, a first source electrode, and a first drain electrode deposited on a substrate, a second TFT separated from the first TFT, the second TFT including a second gate electrode, an oxide semiconductor layer, a second source electrode, and a second drain electrode deposited on the first gate electrode, and a plurality of storage capacitors separated from the first and second TFTs, each storage capacitor including a first dummy semiconductor layer, a first gate insulating layer on the first dummy semiconductor layer, a first dummy gate electrode on the first gate insulating layer, and an intermediate insulating layer on the first dummy gate electrode.

公开(公告)号：US09396679B2

公开(公告)日：2016-07-19

申请号：US14078796

申请日：2013-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Namyong Kong ,  Woosup Shin ,  Kwonshik Park ,  Chonghun Park ,  Uijin Chung

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/043 ,  G09G2300/0469 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/1214 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/78645

Abstract: An organic light emitting display includes a display panel, which includes a plurality of pixels and displays an image, and a data driving circuit differently outputting a compensation voltage depending on a sensing value based on a driving current. Each of the plurality of pixels includes an organic light emitting diode, a driving thin film transistor (TFT) having a double gate structure including a main gate electrode and a sub-gate electrode, a switching TFT applying a data voltage determining the driving current to the main gate electrode of the driving TFT, and a compensation TFT applying the compensation voltage for compensating for a shift amount of a threshold voltage of the driving TFT to the sub-gate electrode of the driving TFT.

Abstract translation: 有机发光显示器包括：显示面板，其包括多个像素并显示图像;以及数据驱动电路，其基于驱动电流根据感测值不同地输出补偿电压。 多个像素中的每一个包括有机发光二极管，具有包括主栅电极和子栅电极的双栅极结构的驱动薄膜晶体管（TFT），施加确定驱动电流的数据电压的开关TFT 驱动TFT的主栅电极和补偿TFT，其补偿用于补偿驱动TFT的阈值电压的偏移量到驱动TFT的子栅电极的补偿电压。

公开(公告)号：US10115341B2

公开(公告)日：2018-10-30

申请号：US15184599

申请日：2016-06-16

Applicant: LG DISPLAY CO., LTD.

Inventor： Namyong Kong ,  Woosup Shin ,  Kwonshik Park ,  Chonghun Park ,  Uijin Chung

IPC: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283 ,  H01L27/32 ,  H01L29/786 ,  H01L27/12

Abstract: An organic light emitting display includes a display panel, which includes a plurality of pixels and displays an image, and a data driving circuit differently outputting a compensation voltage depending on a sensing value based on a driving current. Each of the plurality of pixels includes an organic light emitting diode, a driving thin film transistor (TFT) having a double gate structure including a main gate electrode and a sub-gate electrode, a switching TFT applying a data voltage determining the driving current to the main gate electrode of the driving TFT, and a compensation TFT applying the compensation voltage for compensating for a shift amount of a threshold voltage of the driving TFT to the sub-gate electrode of the driving TFT.

公开(公告)号：US20140168194A1

公开(公告)日：2014-06-19

申请号：US14078796

申请日：2013-11-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Namyong Kong ,  Woosup Shin ,  Kwonshik Park ,  Chonghun Park ,  Uijin Chung

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283 ,  G09G2300/043 ,  G09G2300/0469 ,  G09G2300/0809 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0295 ,  G09G2320/043 ,  H01L27/1214 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/78645

Abstract: An organic light emitting display includes a display panel, which includes a plurality of pixels and displays an image, and a data driving circuit differently outputting a compensation voltage depending on a sensing value based on a driving current. Each of the plurality of pixels includes an organic light emitting diode, a driving thin film transistor (TFT) having a double gate structure including a main gate electrode and a sub-gate electrode, a switching TFT applying a data voltage determining the driving current to the main gate electrode of the driving TFT, and a compensation TFT applying the compensation voltage for compensating for a shift amount of a threshold voltage of the driving TFT to the sub-gate electrode of the driving TFT.

Abstract translation: 有机发光显示器包括：显示面板，其包括多个像素并显示图像;以及数据驱动电路，其基于驱动电流根据感测值不同地输出补偿电压。 多个像素中的每一个包括有机发光二极管，具有包括主栅电极和子栅电极的双栅极结构的驱动薄膜晶体管（TFT），施加确定驱动电流的数据电压的开关TFT 驱动TFT的主栅电极和补偿TFT，其补偿用于补偿驱动TFT的阈值电压的偏移量到驱动TFT的子栅电极的补偿电压。