公开(公告)号：US09159449B2

公开(公告)日：2015-10-13

申请号：US14135369

申请日：2013-12-19

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang

IPC: G11C19/28

CPC classification number: G11C19/28 ,  G09G3/3266 ,  G09G2310/0286

Abstract: A shift register includes a plurality of stages each for outputting k composite pulses each including an A-scan pulse and a B-scan pulse. At least one stage includes k A-sub-stages each for controlling a voltage at an A-set node and a voltage at least one A-reset node in response to an external A-control signal and generating an A-carry pulse based on the voltage at the A-set node, the voltage at the at least one A-reset node and any one A-clock pulse, a B-sub-stage for controlling a voltage at a B-set node and a voltage at least one B-reset node in response to an external B-control signal and generating a B-carry pulse, and a scan output controller for generating k A-scan pulses and k B-scan pulses and outputting one of the A-scan pulses and one of the B-scan pulses corresponding to each other as one composite pulse.

Abstract translation: 移位寄存器包括多个级，用于输出每个包括A扫描脉冲和B扫描脉冲的k个复合脉冲。 至少一个级包括响应于外部A控制信号而分别用于控制A组节点处的电压和电压至少一个A复位节点的k个A级，并且基于 A组节点处的电压，至少一个A复位节点处的电压和任何一个A时钟脉冲，用于控制B组节点处的电压的B子级和至少一个电压 B复位节点，并产生B进位脉冲;以及扫描输出控制器，用于产生k个A扫描脉冲和k个B扫描脉冲，并输出一个A扫描脉冲和一个A扫描脉冲 的B扫描脉冲作为一个复合脉冲。

公开(公告)号：US08724771B2

公开(公告)日：2014-05-13

申请号：US13727230

申请日：2012-12-26

Applicant: LG Display Co., Ltd.

Inventor： Yong-Ho Jang

IPC: G11C19/00

CPC classification number: G11C5/005 ,  G11C19/28

Abstract: A shift register includes a plurality of stages, each of which outputs a carry pulse and a scan pulse. An nth one of the stages includes a carry output switching device controlled by a voltage applied to a set node and connected between a carry clock transfer line transferring any one of i carry clock pulses and a carry output terminal of the nth stage, a scan output switching device controlled by the voltage applied to the set node and connected between a scan clock transfer line transferring any one of j scan clock pulses and a scan output terminal of the nth stage, and a stabilization switching device controlled by any one of the i carry clock pulses and connected between a carry output terminal of an (n−p)th one of the stages and the set node or between a start transfer line and the set node.

Abstract translation: 移位寄存器包括多个级，每个级输出进位脉冲和扫描脉冲。 第n个级包括由施加到设定节点的电压控制的进位输出开关装置，并连接在传送任何一个承载时钟脉冲的进位时钟传送线和第n级的进位输出端之间，扫描输出 开关装置由施加到所述设定节点的电压控制，并且连接在传送j个扫描时钟脉冲中的任何一个的扫描时钟传送线和第n级的扫描输出端之间，以及由i所携带的任一个控制的稳定性切换装置 时钟脉冲，并且连接在第（n-p）个级的进位输出端和设定节点之间，或者连接在起始传送线与设定节点之间。

公开(公告)号：US20140093027A1

公开(公告)日：2014-04-03

申请号：US13727230

申请日：2012-12-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang

IPC: G11C5/00

CPC classification number: G11C5/005 ,  G11C19/28

Abstract: A shift register includes a plurality of stages, each of which outputs a carry pulse and a scan pulse. An nth one of the stages includes a carry output switching device controlled by a voltage applied to a set node and connected between a carry clock transfer line transferring any one of i carry clock pulses and a carry output terminal of the nth stage, a scan output switching device controlled by the voltage applied to the set node and connected between a scan clock transfer line transferring any one of j scan clock pulses and a scan output terminal of the nth stage, and a stabilization switching device controlled by any one of the i carry clock pulses and connected between a carry output terminal of an (n−p)th one of the stages and the set node or between a start transfer line and the set node.

Abstract translation: 移位寄存器包括多个级，每个级输出进位脉冲和扫描脉冲。 第n个级包括由施加到设定节点的电压控制的进位输出开关装置，并连接在传送任何一个承载时钟脉冲的进位时钟传送线和第n级的进位输出端之间，扫描输出 开关装置由施加到所述设定节点的电压控制，并且连接在传送j个扫描时钟脉冲中的任何一个的扫描时钟传送线和第n级的扫描输出端之间，以及由i所携带的任一个控制的稳定性切换装置 时钟脉冲，并且连接在第（n-p）个级的进位输出端和设定节点之间，或者连接在起始传送线与设定节点之间。

公开(公告)号：US10586497B2

公开(公告)日：2020-03-10

申请号：US13727251

申请日：2012-12-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang ,  Binn Kim ,  Hae-Yeol Kim ,  Bu-Yeol Lee

IPC: G09G3/3275 ,  G09G3/3266

Abstract: A gate driver includes a plurality of driving units each including a first sub driving unit and a second sub driving unit, wherein output terminals of the first and second sub driving units are connected to first and second sub gate lines, respectively, and first and second sub outputs that are the outputs of the first and second sub driving units are respectively transferred to gate terminals of a first switching transistor and a second switching transistor formed in a pixel area of a display area, and wherein drain and source terminals of the first switching transistor are respectively connected to drain and source terminals of the second switching transistors.

公开(公告)号：US10121406B2

公开(公告)日：2018-11-06

申请号：US15220102

申请日：2016-07-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang

IPC: G11C19/00 ,  G09G3/20 ,  H01L29/786 ,  G11C19/28

Abstract: Disclosed is a shift register which is an embedded shift register using an oxide transistor is capable of improving output performance, operation range and output stability, and a display device using the same. In the shift register, each stage includes at least two light shielding layers individually overlapped with the transistors of the stage by dividing the transistors into at least two regions, and a connection transistor selectively applying a voltage to a first shielding layer overlapped with the pull-up transistor of the two light shielding layers to allow the first light shielding layer to float.

公开(公告)号：US09524797B2

公开(公告)日：2016-12-20

申请号：US14600894

申请日：2015-01-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang ,  Seung-Chan Choi

IPC: G11C19/00 ,  G11C19/28 ,  G09G3/36

CPC classification number: G11C19/28 ,  G09G3/3688 ,  G09G2310/0286 ,  G09G2310/0289 ,  G11C19/00

Abstract: Disclosed herein is a shift register in which leakage of charges from a voltage at a set node is prevented to stabilize an output from a stage. The shift register includes a plurality of stages for sequentially outputting scan pulses. Each stage includes a node controller for controlling signal states of a set node and a reset node, and an output unit supplied with any one of a plurality of clock pulses having different phases. The output unit outputs the supplied clock pulse as a scan pulse through an output terminal thereof according to the signal states of the set node and reset node. The node controller includes a first discharging switching device which is turned on or off in response to a scan pulse from a downstream stage. The first discharging switching device is connected between any one of a plurality of clock transfer lines and the set node.

公开(公告)号：US20140044228A1

公开(公告)日：2014-02-13

申请号：US13721336

申请日：2012-12-20

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang

IPC: G11C19/00

CPC classification number: G11C19/00 ,  G09G3/20 ,  G09G3/36 ,  G09G3/3677 ,  G09G2310/0267 ,  G09G2310/0291 ,  G11C19/28 ,  G11C19/287

Abstract: Disclosed herein is a shift register which is capable of preventing leakage of charges at a set node which occurs when the duty ratio of a scan pulse is small, so as to normally output a scan pulse. The shift register includes a plurality of stages for sequentially generating outputs thereof. Each of the stages includes a carry output unit for outputting a carry pulse to drive at least one of a downstream stage and an upstream stage, and a scan output unit for outputting a scan pulse to drive a gate line. Each of the outputs generated from the stages includes the carry pulse and the scan pulse. The carry pulse and the scan pulse are paired to correspond to each other. The paired carry pulse and scan pulse have different durations.

Abstract translation: 这里公开了一种移位寄存器，其能够防止当扫描脉冲的占空比小时发生的设定节点处的电荷泄漏，以便正常输出扫描脉冲。 移位寄存器包括用于顺序地产生其输出的多个级。 每个级包括用于输出进位脉冲以驱动下游级和上游级中的至少一级的进位输出单元和用于输出扫描脉冲以驱动栅极线的扫描输出单元。 从级产生的每个输出包括进位脉冲和扫描脉冲。 进位脉冲和扫描脉冲配对成对应。 成对进位脉冲和扫描脉冲具有不同的持续时间。

公开(公告)号：US10157683B2

公开(公告)日：2018-12-18

申请号：US15140931

申请日：2016-04-28

Applicant: LG Display Co., Ltd.

Inventor： Yong-Ho Jang ,  Jong-Uk Bae

IPC: G11C19/00 ,  G11C19/28 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/36 ,  H01L29/786

Abstract: Disclosed is a shift register which prevents current leakage and degradation of an oxide transistor due to light to improve output stability, and a display device using the same. The shift register includes a plurality of stages, and each stage includes a transmission line unit including a plurality of clock lines to supply a plurality of clock signals and a plurality of power lines to supply a plurality of voltages, a transistor unit including a plurality of transistors, and a light-shielding layer overlapping at least one transistor of the transistor unit so as to block light.

公开(公告)号：US10074329B2

公开(公告)日：2018-09-11

申请号：US14835631

申请日：2015-08-25

Applicant: LG Display Co., Ltd.

Inventor： Yong-Ho Jang ,  Woo-Seok Choi

IPC: G11C19/00 ,  G09G3/36 ,  G11C19/28

CPC classification number: G09G3/3677 ,  G09G2310/0286 ,  G11C19/28

Abstract: Disclosed is a shift register capable of preventing charges supplied to a Q node to turn on a pull-up transistor for outputting a scan pulse from leaking outwards. The shift register includes a plurality of stages connected to gate lines formed at a panel. Each stage includes a scan signal generator for generating a scan pulse or a turn-off signal, a scan pulse controller for generating a Q-node control signal for generation of the scan pulse, a Q-node adjuster for preventing the Q-node control signal from leaking outwards during supply of the Q-node control signal to a Q-node connected to the scan signal generator, and a turn-off signal controller for transferring a Qb-node control signal for generation of the turn-off signal to the scan signal generator via a Qb-node when no scan pulse is generated from the scan signal generator.

公开(公告)号：US20170032733A1

公开(公告)日：2017-02-02

申请号：US15220102

申请日：2016-07-26

Applicant: LG DISPLAY CO., LTD.

Inventor： Yong-Ho Jang

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G2300/08 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/043 ,  G09G2330/028 ,  G11C19/28 ,  H01L29/78633

Abstract: Disclosed is a shift register which is an embedded shift register using an oxide transistor is capable of improving output performance, operation range and output stability, and a display device using the same. In the shift register, each stage includes at least two light shielding layers individually overlapped with the transistors of the stage by dividing the transistors into at least two regions, and a connection transistor selectively applying a voltage to a first shielding layer overlapped with the pull-up transistor of the two light shielding layers to allow the first light shielding layer to float.

Abstract translation: 公开了使用氧化物晶体管的嵌入式移位寄存器能够提高输出性能，操作范围和输出稳定性的移位寄存器以及使用该移位寄存器的显示装置。 在移位寄存器中，每个级包括通过将晶体管分成至少两个区域而分别与级的晶体管重叠的至少两个遮光层，以及连接晶体管，其选择性地将电压施加到与引出层叠叠的第一屏蔽层， 从而允许第一遮光层浮起。