公开(公告)号：US10074675B2

公开(公告)日：2018-09-11

申请号：US15133419

申请日：2016-04-20

Applicant: LG Display Co., Ltd.

Inventor： Hyunsoo Shin ,  Uijin Chung

IPC: H01L29/786 ,  H01L27/12

CPC classification number: H01L27/1251 ,  H01L27/1222 ,  H01L27/1225 ,  H01L27/1248 ,  H01L27/127 ,  H01L29/78675 ,  H01L29/7869 ,  H01L29/78696

Abstract: A thin film transistor substrate includes a substrate; a first thin film transistor on the substrate and including a polycrystalline semiconductor layer, a first gate electrode on the polycrystalline semiconductor layer, a first source electrode, and a first drain electrode; a second thin film transistor on the substrate and including a second gate electrode, an oxide semiconductor layer on the second gate electrode, a second source electrode, and a second drain electrode; an intermediate insulating layer on the first gate electrode and the second gate electrode and under the oxide semiconductor layer; and a dummy layer between the first source electrode and the intermediate insulating layer and between the first drain electrode and the intermediate insulating layer, wherein the dummy layer is formed of a same material as the oxide semiconductor layer.

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：US09954014B2

公开(公告)日：2018-04-24

申请号：US15245944

申请日：2016-08-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Soyoung Noh ,  Jinchae Jeon ,  Seungchan Choi ,  Junho Lee ,  Youngjang Lee ,  Sungbin Ryu ,  Kitae Kim ,  Bokyoung Cho ,  Jeanhan Yoon ,  Uijin Chung ,  Jihye Lee ,  Eunsung Kim ,  Hyunsoo Shin ,  Kyeongju Moon ,  Hyojin Kim ,  Wonkyung Kim ,  Jeihyun Lee ,  Soyeon Je

IPC: H01L27/12 ,  H01L27/32 ,  H01L49/02 ,  H01L29/417 ,  H01L29/786

CPC classification number: H01L27/1248 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/1288 ,  H01L27/3258 ,  H01L27/3262 ,  H01L28/60 ,  H01L29/41733 ,  H01L29/78675 ,  H01L29/7869

Abstract: A thin film transistor substrate having two different types of thin film transistors on the same substrate, and a display using the same are discussed. The thin film transistor substrate can include a substrate, a first thin film transistor (TFT), a second TFT, a first storage capacitor electrode, an oxide layer, a nitride layer, a second storage capacitor electrode, a planar layer and a pixel electrode. The first TFT is disposed in a first area, the second TFT is disposed in a second area, and the first storage capacitor electrode is disposed in a third area on the substrate respectively. The oxide layer covers the first and second TFTs, and exposes the first storage capacitor electrode. The nitride layer is disposed on the oxide layer and covers the first storage capacitor electrode. The second storage capacitor electrode overlaps with the first storage capacitor electrode on the nitride layer. The planar layer covers the first and second TFTs, and the second storage capacitor electrode. The pixel electrode is disposed on the planar layer.

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。