公开(公告)号：US11538879B2

公开(公告)日：2022-12-27

申请号：US16952787

申请日：2020-11-19

Applicant: Samsung Display Co., LTD.

Inventor： June Hwan Kim ,  Tae Young Kim ,  Jong Woo Park ,  Ki Ju Im ,  Ji Ho Moon ,  Hyun Cheol Hwang

IPC: H01L29/08 ,  H01L27/32 ,  G09G3/3233 ,  H01L51/56 ,  H01L29/66 ,  H01L27/12 ,  H01L29/786

Abstract: A display device includes an organic light emitting diode, a first transistor driving the organic light emitting diode, a second transistor transmitting a data signal to the first transistor, a third transistor transmitting a first power voltage to the first transistor, wherein a semiconductor pattern of the first transistor is disposed over a semiconductor pattern of the second transistor, a semiconductor pattern of the third transistor is disposed over the semiconductor pattern of the first transistor, a lower transistor insulating film is disposed between the semiconductor pattern of the first transistor and the semiconductor pattern of the second transistor, and an upper transistor insulating film is disposed between the semiconductor pattern of the first transistor and the semiconductor pattern of the third transistor.

公开(公告)号：US20210134227A1

公开(公告)日：2021-05-06

申请号：US16869482

申请日：2020-05-07

Applicant: Samsung Display Co., Ltd.

Inventor： Ki Ju Im ,  Jong Woo Park ,  Hyun Cheol Hwang

IPC: G09G3/3266

Abstract: A method of operating a display device may include the following steps: in a first frame period, before turning off a gate initialization transistor, changing an initialization voltage from a first level to a second level and subsequently returning the initialization voltage to the first level; in a second frame period, before turning off the gate initialization transistor, changing the initialization voltage from the first level to the second level and/or a third level and subsequently returning the initialization voltage to the first level. The display device may include the gate initialization transistor and a driving transistor. A first electrode the gate initialization transistor may receive the initialization voltage. A second electrode of the gate initialization transistor may be electrically connected to a gate electrode of the driving transistor. The first level, the second level, and the third level may be unequal to each other.

公开(公告)号：US20200258453A1

公开(公告)日：2020-08-13

申请号：US16786045

申请日：2020-02-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Tae Young Kim ,  Hyo Jung Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang

IPC: G09G3/3266 ,  G09G3/3233 ,  G09G3/3275 ,  H01L27/32

Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.

公开(公告)号：US20190392758A1

公开(公告)日：2019-12-26

申请号：US16358700

申请日：2019-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Young Kim ,  Jong Woo Park ,  Hyo Jung Kim ,  Ki Ju Im ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3291 ,  G09G3/3266 ,  H01L29/78 ,  H01L27/32

Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.

公开(公告)号：US20150115257A1

公开(公告)日：2015-04-30

申请号：US14334525

申请日：2014-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Je Hun Lee ,  Min Kyu Kim ,  Yeon Hong Kim ,  Yeon Gon Mo ,  Ki Ju Im

IPC: H01L27/12

CPC classification number: H01L27/1251 ,  H01L27/1225 ,  H01L27/127 ,  H01L29/7831 ,  H01L29/78648

Abstract: A display device and a manufacturing method thereof with improved performance and low manufacturing complexity are provided. One inventive aspect includes: a first control electrode, a semiconductor layer, an etch stop layer, a first input electrode and a first output electrode, a third control electrode, a passivation layer and a pixel electrode. The third control electrode is formed on the etch stop layer. The passivation layer is formed on the first electrode, the first output electrode and the third control electrode. The pixel electrode is formed on the passivation layer and connects to the first output electrode.

Abstract translation: 提供了具有改进的性能和低制造复杂度的显示装置及其制造方法。 本发明的一个方面包括：第一控制电极，半导体层，蚀刻停止层，第一输入电极和第一输出电极，第三控制电极，钝化层和像素电极。 第三控制电极形成在蚀刻停止层上。 钝化层形成在第一电极，第一输出电极和第三控制电极上。 像素电极形成在钝化层上并连接到第一输出电极。

公开(公告)号：US11922841B2

公开(公告)日：2024-03-05

申请号：US17950174

申请日：2022-09-22

Applicant: Samsung Display Co., Ltd.

Inventor： Yoon Ho Kim ,  Jong Woo Park ,  June Hwan Kim ,  Ki Ju Im ,  Young Tae Choi ,  Hyuncheol Hwang

IPC: G09G3/00 ,  H01L27/12

CPC classification number: G09G3/006 ,  H01L27/124 ,  G09G2300/0426 ,  G09G2330/12

Abstract: The present disclosure relates to a display device, and the display device according to an embodiment includes: a substrate including a display area and a peripheral area; a plurality of light-emitting elements positioned in a display area; a plurality of pixel circuits connected to a plurality of light-emitting elements, respectively; a sensor positioned on the peripheral area of the substrate; a leakage current detecting circuit connected to the sensor; and a light emitting wiring connected to the leakage current detecting circuit and connected to at least one of the plurality of light-emitting elements, wherein the sensor includes a first sensor and the first sensor includes a first sensing transistor, and a first conductive pattern spaced apart from the channel of the first sensing transistor, and the first conductive pattern is positioned in the same layer as at least one of a plurality of layers configuring the transistor.

公开(公告)号：US11848330B2

公开(公告)日：2023-12-19

申请号：US16875770

申请日：2020-05-15

Applicant: Samsung Display Co., Ltd.

Inventor： June Hwan Kim ,  Tae Young Kim ,  Jong Woo Park ,  Young Tae Choi ,  Hyun Cheol Hwang ,  Ki Ju Im

IPC: H01L27/12 ,  H01L29/786 ,  H10K59/121

CPC classification number: H01L27/1237 ,  H01L27/1218 ,  H01L27/1255 ,  H01L29/7869 ,  H01L29/78675 ,  H10K59/1213 ,  H10K59/1216

Abstract: A display device is provided. The display device comprises a substrate, a first buffer layer on the substrate, a first semiconductor layer on the first buffer layer and including a first active layer, a first gate insulating layer on the first semiconductor layer and the first buffer layer and covering the first active layer, a first conductive layer on the first gate insulating layer and including a first gate electrode, a second conductive layer on the first conductive layer and including a first source/drain electrode, a first interlayer insulating layer on the first conductive layer, a second semiconductor layer on the first interlayer insulating layer and including a second active layer, a second gate insulating layer on the second semiconductor layer and covering the second active layer, and a third conductive layer on the second gate insulating layer and including a second gate electrode and a second source/drain electrode, wherein the first gate insulating layer and the second gate insulating layer include different insulating materials.

公开(公告)号：US11308874B2

公开(公告)日：2022-04-19

申请号：US16358700

申请日：2019-03-20

Applicant: Samsung Display Co., Ltd.

Inventor： Tae Young Kim ,  Jong Woo Park ,  Hyo Jung Kim ,  Ki Ju Im ,  Young Tae Choi

IPC: G09G3/3233 ,  G09G3/3266 ,  H01L29/78 ,  G09G3/3291 ,  H01L27/32

Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.

公开(公告)号：US09899558B2

公开(公告)日：2018-02-20

申请号：US15152980

申请日：2016-05-12

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ki Ju Im ,  Min-Sung Kim ,  Thanh Tien Nguyen ,  Jae Seob Lee

IPC: H01L29/10 ,  H01L31/153 ,  H01L27/12 ,  H01L31/0296 ,  H01L31/0232 ,  H01L27/32

CPC classification number: H01L31/153 ,  H01L27/1225 ,  H01L27/3262 ,  H01L31/02327 ,  H01L31/0296

Abstract: A disclosed photosensor includes: a first electrode layer including a reflection part having an inclination surface; a first semiconductor layer positioned on the first electrode layer; a second electrode layer positioned on the first semiconductor layer; and a first dielectric layer and a second dielectric layer sequentially positioned on the second electrode layer, wherein the first dielectric layer and the second dielectric layer have different dielectric constant values. Further, the disclosed display device includes a plurality of pixel areas positioned on a substrate, and a sensor unit formed in at least some pixel areas among the plurality of pixel areas.

公开(公告)号：US09564479B2

公开(公告)日：2017-02-07

申请号：US14857111

申请日：2015-09-17

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Thanh Tien Nguyen ,  Min-Sung Kim ,  Eun Young Lee ,  Ki Ju Im

IPC: H01L27/32 ,  H01L51/00 ,  H01L29/423

CPC classification number: H01L27/3262 ,  H01L29/42376 ,  H01L29/42384 ,  H01L51/0097 ,  H01L2251/5338

Abstract: A flexible display includes a driving circuit to drive a light emitting device. The driving circuit includes a thin film transistor which includes a column-shaped gate electrode extending in a first direction, a gate insulating layer enclosing an outer surface of the gate electrode, a semiconductor layer on an outer surface of the gate insulating layer, and first and second conductive layers enclosing first and second areas of the semiconductor layer, respectively.

Abstract translation: 柔性显示器包括用于驱动发光器件的驱动电路。 驱动电路包括薄膜晶体管，该薄膜晶体管包括沿第一方向延伸的列状栅电极，包围栅电极的外表面的栅极绝缘层，栅极绝缘层的外表面上的半导体层和第一 以及分别包围半导体层的第一和第二区域的第二导电层。