公开(公告)号：US09881689B2

公开(公告)日：2018-01-30

申请号：US14597082

申请日：2015-01-14

Applicant: Samsung Display Co., Ltd.

Inventor： Hae-Yeon Lee ,  Bo-Yong Chung ,  Na-Young Kim

IPC: G09G5/10 ,  G11C19/28 ,  G09G3/3266

CPC classification number: G11C19/28 ,  G09G3/3266 ,  G09G2230/00 ,  G09G2300/0861 ,  G09G2310/0205 ,  G09G2310/0286

Abstract: An emission driver and a display device having the same are disclosed. In one aspect, the emission driver includes a plurality of stages each configured to output an emission control signal, wherein each of the stages includes first and second driving blocks and a buffer block. The buffer block is configured to selectively output an emission control signal so as to operate in a sequential emission mode or in a simultaneous emission mode, the stages being configured to sequentially output a plurality of the emission control signals in the sequential emission mode and substantially simultaneously output the emission control signals in the simultaneous emission mode. The buffer block is further configured to determine a duration in which the emission control signal has a first voltage level based on an interval between time points when first and second intermediate signals have low voltage levels.

公开(公告)号：US09818766B2

公开(公告)日：2017-11-14

申请号：US14055039

申请日：2013-10-16

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Bae Kim ,  Bo-Yong Chung ,  Hai-Jung In ,  Dong-Gyu Kim

IPC: H01L29/08 ,  H01L27/12 ,  H01L29/423 ,  H01L29/786 ,  H01L27/32

CPC classification number: H01L27/124 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/42384 ,  H01L29/78645

Abstract: A thin film transistor includes a substrate, a semiconductor layer on the substrate, a first insulating layer covering the substrate and the semiconductor layer, a first gate electrode on the first insulating layer and overlapping the semiconductor layer, a second insulating layer covering the first gate electrode and the first insulating layer, a second gate electrode on the second insulating layer and overlapping the semiconductor layer and the first gate electrode, a third insulating layer covering the second gate electrode, a first contact hole defined in the first insulating layer, the second insulating layer and the third insulating layer, and through which a portion of the semiconductor layer is exposed, and a source electrode and a drain electrode connected to the semiconductor layer through the first contact hole.

公开(公告)号：US09601056B2

公开(公告)日：2017-03-21

申请号：US14250742

申请日：2014-04-11

Applicant: Samsung Display Co., Ltd.

Inventor： Bo-Yong Chung ,  Hai-Jung In ,  Jung-Bae Kim

IPC: G09G3/32

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0852 ,  G09G2300/0861

Abstract: A pixel includes an organic light emitting diode (OLED) having a cathode electrode coupled to a second power supply, a pixel circuit configured to control an amount of current supplied to the OLED to correspond to a previous data signal, and a driver configured to store a present data signal supplied from a data line and to supply the previous data signal to the pixel circuit. The OLED, pixel circuit, and driver may be controlled by signals in a frame that includes first through fourth periods, the second power supply may be set to a first voltage in the first and second periods and to a second voltage in the third and fourth periods, and the first voltage may be a voltage at which the OLED does not emit light and the second voltage may be a voltage at which the OLED emits light.

公开(公告)号：US09478532B2

公开(公告)日：2016-10-25

申请号：US14326336

申请日：2014-07-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hai-Jung In ,  Bo-Yong Chung

IPC: H01L27/02 ,  H01L27/12

CPC classification number: H01L27/0266 ,  H01L27/1225

Abstract: An electro static discharge (ESD) protection circuit including a signal transmission line coupled to an external input terminal, the ESD protection circuit including: a first power line coupled to a high voltage power supply; a second power line coupled to a low voltage power supply; a plurality of first oxide thin film transistors coupled in parallel between the first power line and the signal transmission line, the first oxide thin film transistors being diode-connected; and a plurality of second oxide thin film transistors coupled in parallel between the signal transmission line and the second power line, the second oxide thin film transistors being diode-connected.

Abstract translation: 一种静电放电（ESD）保护电路，包括耦合到外部输入端子的信号传输线，所述ESD保护电路包括：耦合到高压电源的第一电力线; 耦合到低压电源的第二电源线; 多个第一氧化物薄膜晶体管并联在第一电源线和信号传输线之间，第一氧化物薄膜晶体管被二极管连接; 以及并联在所述信号传输线和所述第二电源线之间的多个第二氧化物薄膜晶体管，所述第二氧化物薄膜晶体管是二极管连接的。

公开(公告)号：US09299279B2

公开(公告)日：2016-03-29

申请号：US13668191

申请日：2012-11-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Bo-Yong Chung ,  Jung-Mi Choi ,  Yong-Jae Kim ,  Young-In Hwang ,  Seong-Il Park

IPC: G09G3/00 ,  G09G3/20

CPC classification number: G09G3/006 ,  G09G3/20 ,  G09G2300/08 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2330/02 ,  G09G2330/04

Abstract: A display device according to the present invention includes: a display unit including a plurality of pixels coupled to a plurality of scan lines; a plurality of scan driving blocks coupled to the plurality of scan lines and adapted to apply a plurality of scan signals; an electrostatic discharge (ESD) unit adapted to protect the plurality of scan driving blocks from static charges; an AC power source unit for supplying a first power source voltage of which a level is changed between a logic high level and a logic low level, to the plurality of scan driving blocks through a first power source voltage wire during a pixel test of the plurality of pixels; and a DC power source unit for supplying a second power source voltage of the logic high level to the ESD unit through a second power source voltage wire.

Abstract translation: 根据本发明的显示装置包括：显示单元，包括耦合到多条扫描线的多个像素; 耦合到所述多条扫描线并适于施加多个扫描信号的多个扫描驱动块; 适于保护所述多个扫描驱动块免受静电荷的静电放电（ESD）单元; AC电源单元，用于在多个像素测试期间通过第一电源电压线将多个扫描驱动块提供其电平在逻辑高电平和逻辑低电平之间变化的第一电源电压 的像素; 以及直流电源单元，用于通过第二电源电压线将ESD逻辑单元的第二电源电压提供给ESD单元。

公开(公告)号：US20150243209A1

公开(公告)日：2015-08-27

申请号：US14604624

申请日：2015-01-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hai-Jung In ,  Yong-Sung Park ,  Bo-Yong Chung

IPC: G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/2022 ,  G09G3/3275 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0223

Abstract: An organic light emitting display can improve display quality by securing a charging time of a data signal. An organic light emitting display includes pixels, a data driver, a plurality of data drivers, and a control signal generator. The pixels are respectively positioned at areas defined by scan lines and data lines. The data driver sequentially supplies i (i is a natural number greater than or equal to 2) data signals to each of output lines during one horizontal period. The plurality of data dividers are respectively coupled to the output lines, and supply the i data signals to i data lines. The control signal generator sequentially supplies i control signals to the data dividers, corresponding to the i data signals. In the organic light emitting display, the data dividers supply a corresponding data signal to each data line during the one horizontal period.

Abstract translation: 有机发光显示器可以通过确保数据信号的充电时间来提高显示质量。 有机发光显示器包括像素，数据驱动器，多个数据驱动器和控制信号发生器。 像素分别位于由扫描线和数据线限定的区域。 在一个水平周期期间，数据驱动器将i（i是大于或等于2的自然数）数据信号提供给每个输出线。 多个数据分配器分别耦合到输出线，并将i数据信号提供给i数据线。 控制信号发生器依次将i个控制信号提供给对应于i个数据信号的数据分配器。 在有机发光显示器中，数据分配器在一个水平周期期间向每个数据线提供相应的数据信号。

公开(公告)号：US20150021591A1

公开(公告)日：2015-01-22

申请号：US14133307

申请日：2013-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Jung-Bae Kim ,  Bo-Yong Chung ,  Hae-Yeon Lee ,  Hai-Jung In

IPC: H01L29/786

CPC classification number: H01L29/7869 ,  H01L29/78645

Abstract: A thin film transistor is disclosed. In one aspect, the thin film transistor includes a substrate, a semiconductor layer formed on the substrate, and a first gate electrode substantially overlapping the semiconductor layer with a gate insulating layer interposed therebetween. The thin film transistor also includes a second gate electrode substantially overlapping the first gate electrode with an interlayer insulating layer interposed therebetween, and a source electrode and a drain electrode electrically connected to the semiconductor layer, wherein the first gate electrode is electrically connected to the second gate electrode.

Abstract translation: 公开了一种薄膜晶体管。 在一个方面，薄膜晶体管包括基板，形成在基板上的半导体层，以及基本上与半导体层重叠的第一栅电极和介于其间的栅极绝缘层。 薄膜晶体管还包括基本上与第一栅电极重叠的第二栅电极和插入其间的层间绝缘层，以及电连接到半导体层的源电极和漏电极，其中第一栅电极电连接到第二栅电极 栅电极。

公开(公告)号：US20140333512A1

公开(公告)日：2014-11-13

申请号：US14038594

申请日：2013-09-26

Applicant: Samsung Display Co., Ltd.

Inventor： Hai-Jung In ,  Jung-Bae Kim ,  Bo-Yong Chung

IPC: G09G3/32

CPC classification number: G09G3/3233 ,  G09G3/3208 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2300/0876 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2320/043 ,  G09G2320/045

Abstract: A pixel circuit for an organic light emitting diode (OLED) display is disclosed. One inventive aspect includes an organic light emitting diode, a first transistor, a storage unit, a second transistor and a third transistor. The first transistor controls the amount of current flowing from a first power source coupled to a second power source via a second node and the organic light emitting diode in response to a voltage at a first node. The storage unit is connected to a data line, and stores a data signal from the data line. The second transistor is connected to a fourth node and the first node and is turned on when a second control signal is supplied. The third transistor is connected to the first node and a third node and is turned on when a third control signal is supplied.

Abstract translation: 公开了一种用于有机发光二极管（OLED）显示器的像素电路。 本发明的一个方面包括有机发光二极管，第一晶体管，存储单元，第二晶体管和第三晶体管。 第一晶体管响应于第一节点处的电压控制经由第二节点耦合到第二电源的第一电源和有机发光二极管的电流量。 存储单元连接到数据线，并存储来自数据线的数据信号。 第二晶体管连接到第四节点和第一节点，并且当提供第二控制信号时被接通。 第三晶体管连接到第一节点和第三节点，并且当提供第三控制信号时被接通。