公开(公告)号：US09391099B2

公开(公告)日：2016-07-12

申请号：US14276903

申请日：2014-05-13

Applicant: LG Display Co., Ltd.

Inventor： Cheol-Se Kim ,  Jae-Hyung Jo ,  Duk-Keun Yoo

IPC: G02F1/136 ,  H01L27/12 ,  H01L29/786 ,  G02F1/1362

CPC classification number: H01L27/1288 ,  G02F2001/136231 ,  G02F2001/136236 ,  G02F2001/136295 ,  G02F2202/103 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/458 ,  H01L29/78669 ,  H01L29/78696

Abstract: An array substrate for a liquid crystal display device includes a gate line and a gate electrode on a substrate, the gate electrode connected to the gate line; a gate insulating layer on the gate line and the gate electrode; an active layer of intrinsic amorphous silicon on the gate insulating layer and corresponding to the gate electrode; an ohmic contact layer of impurity-doped amorphous silicon on the active layer; a data line crossing the gate line; a source electrode on the ohmic contact layer and connected to the data line; a drain electrode on the ohmic contact layer and spaced apart from the source electrode; a passivation layer on the source and drain electrodes and including a drain contact hole exposing a portion of the drain electrode; and a pixel electrode on the passivation layer and connected to the drain electrode through the drain contact hole.

Abstract translation: 用于液晶显示装置的阵列基板包括在基板上的栅极线和栅电极，栅电极连接到栅极线; 栅极线上的栅极绝缘层和栅电极; 栅极绝缘层上的对应于栅电极的本征非晶硅的有源层; 有源层上杂质掺杂非晶硅的欧姆接触层; 跨越栅极线的数据线; 欧姆接触层上的源电极并连接到数据线; 欧姆接触层上的漏电极并与源电极间隔开; 在所述源电极和漏电极上的钝化层，并且包括暴露所述漏电极的一部分的漏极接触孔; 以及钝化层上的像素电极，并通过漏极接触孔与漏电极连接。

公开(公告)号：US09293222B2

公开(公告)日：2016-03-22

申请号：US14308577

申请日：2014-06-18

Applicant: LG Display Co., Ltd.

Inventor： Yong-Ho Jang ,  Cheol-Se Kim

IPC: G11C19/00 ,  G11C19/28

CPC classification number: G11C19/28 ,  G09G2310/0286

Abstract: Disclosed is a shift register capable of stably generating an output even when the threadhold voltage of a pull-down switching element is raised due to degradation of the pull-down switching element. The shift register includes a plurality of stages each comprising a node controller comprising an inverter to control a voltage at a reset node in accordance with a voltage at a set node, and an output unit to output a scan pulse based on at least one of the voltage at the set node and the voltage at the reset node. The shift register further includes an inverter voltage controller for controlling a high-level inverter voltage supplied to each inverter of the stages based on the voltage at at least one reset node in at least one of the stages.

Abstract translation: 公开了一种即使当下拉开关元件的螺纹保持电压由于下拉开关元件的劣化而升高时也能够稳定地产生输出的移位寄存器。 移位寄存器包括多个级，每个级包括节点控制器，该节点控制器包括根据设置节点处的电压来控制复位节点处的电压的反相器，以及输出单元，用于基于以下步骤中的至少一个来输出扫描脉冲： 设置节点处的电压和复位节点处的电压。 移位寄存器还包括逆变器电压控制器，用于基于至少一个级中的至少一个复位节点上的电压来控制提供给各级的每个反相器的高电平的反相器电压。

公开(公告)号：US09093331B2

公开(公告)日：2015-07-28

申请号：US14278483

申请日：2014-05-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Cheol-Se Kim

IPC: H01L21/00 ,  H01L27/12 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1333

CPC classification number: H01L27/1259 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044

Abstract: Disclosed is a liquid crystal display device having touch sensors embedded therein. The liquid crystal display device includes a liquid crystal layer interposed between upper and lower substrates, pixels, each of which includes pixel and common electrodes applying a horizontal electric field to the liquid crystal layer, a pixel thin film transistor to drive the pixel electrode, and a common thin film transistor to drive the common electrode, touch sensors, each of which forms a sensing capacitor between an object and the common electrode, sensor power lines, readout lines, and sensor gate lines. Each touch sensor includes the common electrode, a first sensor thin film transistor charging the common electrode with the sensing driving voltage in response to control of the previous sensor gate line, and a second sensor thin film transistor outputting the sensing signal to the readout line in response to control of the current sensor gate line.

Abstract translation: 公开了一种其中嵌有触摸传感器的液晶显示装置。 液晶显示装置包括插入在上基板和下基板之间的液晶层，每个像素包括像素和向液晶层施加水平电场的公共电极，驱动像素电极的像素薄膜晶体管，以及 用于驱动公共电极的公共薄膜晶体管，触摸传感器，每个触摸传感器在物体和公共电极之间形成感测电容器，传感器电力线，读出线和传感器栅极线。 每个触摸传感器包括公共电极，第一传感器薄膜晶体管响应于先前的传感器栅极线的控制而将公共电极与感测驱动电压充电，以及第二传感器薄膜晶体管，其将感测信号输出到读出线 响应于当前传感器栅极线的控制。

公开(公告)号：US09881944B2

公开(公告)日：2018-01-30

申请号：US15180970

申请日：2016-06-13

Applicant: LG Display Co., LTD.

Inventor： Cheol-Se Kim ,  Jae-Hyung Jo ,  Duk-Keun Yoo

IPC: G02F1/136 ,  H01L27/12 ,  H01L29/786 ,  H01L29/45 ,  G02F1/1362

CPC classification number: H01L27/1288 ,  G02F2001/136231 ,  G02F2001/136236 ,  G02F2001/136295 ,  G02F2202/103 ,  H01L27/1214 ,  H01L27/124 ,  H01L27/1255 ,  H01L29/458 ,  H01L29/78669 ,  H01L29/78696

Abstract: A method of fabricating an array substrate for a liquid crystal display device can include forming a gate line and a gate electrode, and a gate insulating layer; forming an active layer on the gate insulating layer and an ohmic contact layer on the active layer; forming a data line and source and drain electrodes; forming a passivation layer on the source and drain electrodes; and forming a pixel electrode on the passivation layer, in which the ohmic contact layer covers an entire top surface of the active layer between the source and drain electrodes; forming a metallic layer on the gate insulating layer and the ohmic contact layer; etching the metallic layer to faun the data line, and the source drain electrodes, in which a silicide layer is formed on the ohmic contact layer only in the space between the source and drain electrodes; and removing the silicide layer.

公开(公告)号：US20140256074A1

公开(公告)日：2014-09-11

申请号：US14278483

申请日：2014-05-15

Applicant: LG DISPLAY CO., LTD.

Inventor： Cheol-Se Kim

IPC: H01L27/12

CPC classification number: H01L27/1259 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044

Abstract: Disclosed is a liquid crystal display device having touch sensors embedded therein. The liquid crystal display device includes a liquid crystal layer interposed between upper and lower substrates, pixels, each of which includes pixel and common electrodes applying a horizontal electric field to the liquid crystal layer, a pixel thin film transistor to drive the pixel electrode, and a common thin film transistor to drive the common electrode, touch sensors, each of which forms a sensing capacitor between an object and the common electrode, sensor power lines, readout lines, and sensor gate lines. Each touch sensor includes the common electrode, a first sensor thin film transistor charging the common electrode with the sensing driving voltage in response to control of the previous sensor gate line, and a second sensor thin film transistor outputting the sensing signal to the readout line in response to control of the current sensor gate line.

公开(公告)号：US20140009442A1

公开(公告)日：2014-01-09

申请号：US14022955

申请日：2013-09-10

Applicant: LG DISPLAY CO., LTD.

Inventor： Cheol-Se Kim

IPC: G02F1/1333 ,  G06F3/044

CPC classification number: H01L27/1259 ,  G02F1/13338 ,  G06F3/0412 ,  G06F3/044

Abstract: Disclosed is a liquid crystal display device having touch sensors embedded therein. The liquid crystal display device includes a liquid crystal layer interposed between upper and lower substrates, pixels, each of which includes pixel and common electrodes applying a horizontal electric field to the liquid crystal layer, a pixel thin film transistor to drive the pixel electrode, and a common thin film transistor to drive the common electrode, touch sensors, each of which forms a sensing capacitor between an object and the common electrode, sensor power lines, readout lines, and sensor gate lines. Each touch sensor includes the common electrode, a first sensor thin film transistor charging the common electrode with the sensing driving voltage in response to control of the previous sensor gate line, and a second sensor thin film transistor outputting the sensing signal to the readout line in response to control of the current sensor gate line.

Abstract translation: 公开了一种其中嵌有触摸传感器的液晶显示装置。 液晶显示装置包括插入在上基板和下基板之间的液晶层，每个像素包括像素和向液晶层施加水平电场的公共电极，驱动像素电极的像素薄膜晶体管，以及 用于驱动公共电极的公共薄膜晶体管，触摸传感器，每个触摸传感器在物体和公共电极之间形成感测电容器，传感器电力线，读出线和传感器栅极线。 每个触摸传感器包括公共电极，第一传感器薄膜晶体管响应于先前的传感器栅极线的控制而将公共电极与感测驱动电压充电，以及第二传感器薄膜晶体管，其将感测信号输出到读出线 响应于当前传感器栅极线的控制。

公开(公告)号：US09201261B2

公开(公告)日：2015-12-01

申请号：US14276685

申请日：2014-05-13

Applicant: LG DISPLAY CO., LTD.

Inventor： Cheol-Se Kim ,  Ji-Hyun Jung

IPC: H01L21/00 ,  G02F1/1333 ,  G06F3/041 ,  G06F3/044 ,  G09G3/36

CPC classification number: G02F1/13338 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2300/0443 ,  Y10T29/49117

Abstract: A liquid crystal display device having a touch sensor embedded therein is disclosed. The present invention includes a liquid crystal layer between first and second substrates, a pixel on the second substrate to apply a horizontal electric field to the liquid crystal layer, a touch sensor on the second substrate, the touch sensor detecting a touch by forming a touch capacitor with a touch object for touching the first substrate, and a readout line outputting a sensing signal from the touch sensor. The touch sensor includes a sensing electrode on the second substrate to form the sensing capacitor with the touch object, first and second sensor gate lines, a first sensor thin film transistor supplying a sensing driving voltage to the sensing electrode in response to a control of the first sensor gate line, and a second sensor thin film transistor supplying electric charges of the sensing electrode as the sensing signal in response to a control of the second sensor gate line.

Abstract translation: 公开了一种嵌有触摸传感器的液晶显示装置。 本发明包括在第一和第二基板之间的液晶层，在第二基板上施加水平电场的像素到液晶层，在第二基板上的触摸传感器，触摸传感器通过形成触摸来检测触摸 具有用于接触第一基板的触摸物体的电容器，以及从触摸传感器输出感测信号的读出线。 触摸传感器包括在第二基板上的感测电极，以形成具有触摸对象的感测电容器，第一和第二传感器栅极线，第一传感器薄膜晶体管，以响应于所述感测电极的控制向感测电极提供感测驱动电压 第一传感器栅极线和第二传感器薄膜晶体管，其响应于第二传感器栅极线的控制，提供感测电极的电荷作为感测信号。

公开(公告)号：US20140376682A1

公开(公告)日：2014-12-25

申请号：US14308577

申请日：2014-06-18

Applicant: LG Display Co., Ltd.

Inventor： Yong-Ho Jang ,  Cheol-Se Kim

IPC: G11C19/34

CPC classification number: G11C19/28 ,  G09G2310/0286

Abstract: Disclosed is a shift register capable of stably generating an output even when the threadhold voltage of a pull-down switching element is raised due to degradation of the pull-down switching element. The shift register includes a plurality of stages each comprising a node controller comprising an inverter to control a voltage at a reset node in accordance with a voltage at a set node, and an output unit to output a scan pulse based on at least one of the voltage at the set node and the voltage at the reset node. The shift register further includes an inverter voltage controller for controlling a high-level inverter voltage supplied to each inverter of the stages based on the voltage at at least one reset node in at least one of the stages.

Abstract translation: 公开了一种即使当下拉开关元件的螺纹保持电压由于下拉开关元件的劣化而升高时也能够稳定地产生输出的移位寄存器。 移位寄存器包括多个级，每个级包括节点控制器，该节点控制器包括根据设置节点处的电压来控制复位节点处的电压的反相器，以及输出单元，用于基于以下步骤中的至少一个来输出扫描脉冲： 设置节点处的电压和复位节点处的电压。 移位寄存器还包括逆变器电压控制器，用于基于至少一个级中的至少一个复位节点上的电压来控制提供给各级的每个反相器的高电平的反相器电压。