公开(公告)号：US20130147780A1

公开(公告)日：2013-06-13

申请号：US13708333

申请日：2012-12-07

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuo KITA ,  Genshiro KAWACHI

IPC: G09G5/00

CPC classification number: G09G5/001 ,  G09G3/3275 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/0297 ,  G09G2320/0209 ,  G09G2320/0219

Abstract: In a liquid crystal display device, a data signal generation unit generates a data signal for controlling the orientation of liquid crystal. A plurality of transistors supply the data signal output from a source IC unit to a plurality of data signal lines of a liquid crystal display panel in a time sharing manner. A gate signal line controls each of the plurality of transistors. A fluctuation suppression unit is connected to the gate signal line that controls any one of the plurality of transistors, and suppresses, in accordance with a gate signal of the connected gate signal line, a voltage fluctuation in the data signal which occurs when another transistor changes from the ON state to the OFF state.

Abstract translation: 在液晶显示装置中，数据信号生成部生成用于控制液晶取向的数据信号。 多个晶体管以时间分配方式将从源IC单元输出的数据信号提供给液晶显示面板的多个数据信号线。 栅极信号线控制多个晶体管中的每一个。 波动抑制单元连接到控制多个晶体管中的任一个的栅极信号线，并且根据连接的栅极信号线的栅极信号抑制当另一个晶体管变化时发生的数据信号中的电压波动 从ON状态到OFF状态。

公开(公告)号：US20150022500A1

公开(公告)日：2015-01-22

申请号：US14510788

申请日：2014-10-09

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuo KITA ,  Genshiro KAWACHI

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G02F1/13338 ,  G02F1/134336 ,  G02F1/134363 ,  G06F3/0412 ,  G06F3/044

Abstract: To achieve improved detection accuracy and time and position resolutions in an in-cell type capacitive touch sensor embedded in a liquid crystal panel of a liquid crystal display device, a drive electrode of the touch sensor is formed in a boundary region for separating pixel electrodes formed on a surface of a TFT substrate on a liquid crystal side, and a detection electrode is formed in a region of an opposing substrate that opposes the boundary region. A drive signal is supplied to the drive electrode to cause a voltage change, and based on the voltage change in the detection electrode caused thereby, a capacitance change in an opposing part between the drive electrode and the detection electrode is detected, to thereby detect contact of an object to a display surface near the opposing part in a liquid crystal panel.

Abstract translation: 为了在嵌入在液晶显示装置的液晶面板中的单元型电容式触摸传感器中实现改进的检测精度和时间和位置分辨率，触摸传感器的驱动电极形成在用于分离形成的像素电极的边界区域中 在液晶侧的TFT基板的表面上形成检测电极，该对置基板的与边界区域相对的区域。 驱动信号被提供给驱动电极以引起电压变化，并且基于由此引起的检测电极中的电压变化，检测驱动电极和检测电极之间的相对部分的电容变化，从而检测接触 的物体在液晶面板中的相对部分附近的显示表面。

公开(公告)号：US20130215057A1

公开(公告)日：2013-08-22

申请号：US13770618

申请日：2013-02-19

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Genshiro KAWACHI ,  Kazuo KITA ,  Kikuo ONO

IPC: G09G3/36

CPC classification number: G09G3/3611 ,  G06F3/044

Abstract: Provided is an embedded touch screen, including: a first substrate; a second substrate including: scanning signal lines extending in a first direction; video signal lines extending in a second direction; a plurality of pixels each including a pixel electrode connected to corresponding one of the video signal lines via a switching element connected to corresponding one of the scanning signal lines; and a common electrode; a liquid crystal layer; an application circuit for applying an alternating signal to a plurality of excitation electrodes; a detection circuit for detecting a signal excited on a plurality of detection electrodes each arranged adjacent to each of the plurality of excitation electrodes; and a scanning circuit for scanning at least one of each of the plurality of excitation electrodes and each of the plurality of detection electrodes at least in the second direction.

Abstract translation: 提供了一种嵌入式触摸屏，包括：第一基板; 第二基板，包括：沿第一方向延伸的扫描信号线; 视频信号线沿第二方向延伸; 多个像素，每个像素包括连接到对应的一个视频信号线的像素电极，连接到相应的一个扫描信号线的开关元件; 和公共电极; 液晶层; 用于向多个激励电极施加交替信号的应用电路; 检测电路，用于检测激励在多个检测电极上的信号，每个检测电极与多个激励电极中的每一个相邻布置; 以及用于至少在第二方向上扫描多个激励电极和多个检测电极中的每一个中的至少一个的扫描电路。

公开(公告)号：US20180005595A1

公开(公告)日：2018-01-04

申请号：US15707575

申请日：2017-09-18

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Genshiro KAWACHI ,  Kazuo KITA

IPC: G09G3/36 ,  G02F1/1345

CPC classification number: G09G3/3677 ,  G02F1/13452 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2310/0213

Abstract: Provided is a liquid crystal display device, including: a plurality of scanning connection lines formed on at least one side of edges of the image display region, the plurality of scanning connection lines connecting together a scanning signal drive circuit and a plurality of scanning signal lines; a selection circuit formed so as to be interposed between the plurality of scanning connection lines and the plurality of scanning signal lines, the selection circuit being configured to selectively short-circuit one of a plurality of the scanning signal lines to one of the plurality of scanning connection lines based on a selection signal; and a selection signal line connected to the selection circuit, the selection signal line transmitting the selection signal to the selection circuit.

公开(公告)号：US20160267866A1

公开(公告)日：2016-09-15

申请号：US15160596

申请日：2016-05-20

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoshihisa OOISHI ,  Genshiro KAWACHI ,  Kazuo KITA ,  Toshikazu KOUDO ,  Hideyuki NAKANISHI

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2310/0218 ,  G09G2310/0281 ,  G09G2310/0297 ,  G09G2310/067 ,  G09G2310/08

Abstract: A display apparatus includes an image display region having pixels sectioned by scanning signal lines and video signal lines, scanning connecting lines, thin film transistors, selection signal lines connected to gate electrodes of the thin film transistors, plural ones of the thin film transistors connected to different ones of the scanning connecting lines being connected to one of the selection signal lines; and a scanning signal drive circuit. The scanning signal drive circuit performs a normal scanning mode in which pulse signals are supplied in turn to plural ones of the scanning connecting lines connected to the one of the selection signal lines, and in the normal scanning mode, a fall timing of the gate-on voltage differs from a fall timing of a last one of the pulse signals supplied to the plural ones of the scanning connecting lines during the selection period.

Abstract translation: 显示装置包括具有通过扫描信号线和视频信号线分割的像素的图像显示区域，扫描连接线，薄膜晶体管，连接到薄膜晶体管的栅电极的选择信号线，多个薄膜晶体管连接到 不同的扫描连接线连接到选择信号线之一; 和扫描信号驱动电路。 扫描信号驱动电路进行正常扫描模式，其中脉冲信号依次提供给与选择信号线之一连接的多个扫描连接线，并且在正常扫描模式中，栅极 - 导通电压不同于在选择期间提供给多个扫描连接线的最后一个脉冲信号的下降时间。

公开(公告)号：US20140361966A1

公开(公告)日：2014-12-11

申请号：US14470357

申请日：2014-08-27

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Kazuo KITA

IPC: H03K19/0185 ,  G09G3/36

CPC classification number: H03K19/0185 ,  G09G3/3648 ,  G09G3/3674 ,  G09G2310/0278 ,  G09G2310/0289

Abstract: A level conversion circuit includes level conversion portions which are connected in series. The level conversion portion includes circuit blocks. The circuit block inverts an input signal. The circuit block includes a transistor connected between a power supply and a node, a transistor connected between the node and a power supply, a transistor connected between a gate of the transistor and the power supply, and a capacitor connected between an output node and the gate of the transistor. The circuit block carried out level conversion in step with operation of the transistor in accordance with a signal applied from an input node to a gate thereof and operation of the transistor an ON/OFF state of which is switched by application of an output of the circuit block to a gate thereof, to thereby output potential change at the node.

Abstract translation: 电平转换电路包括串联连接的电平变换部。 电平转换部分包括电路块。 电路块反转输入信号。 电路块包括连接在电源和节点之间的晶体管，连接在节点和电源之间的晶体管，连接在晶体管的栅极和电源之间的晶体管，以及连接在输出节点和电源之间的电容器 晶体管的栅极。 电路块根据从输入节点施加到其栅极的信号和晶体管的操作，一步一步地进行电平转换，晶体管的ON / OFF状态通过施加电路的输出而被切换 到其门，从而输出节点处的电位变化。

公开(公告)号：US20130146867A1

公开(公告)日：2013-06-13

申请号：US13708225

申请日：2012-12-07

Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.

Inventor： Kazuo KITA

IPC: H01L29/786

CPC classification number: H01L29/786 ,  H01L27/1225 ,  H01L29/78633 ,  H01L29/7869

Abstract: In a transparent substrate (10), there are formed a semiconductor layer (14) formed of an oxide semiconductor, the semiconductor layer (14) functioning as a channel portion of a TFT (2); an electrode (16) formed of a transparent conductive material and located over the semiconductor layer (14), and a light-shielding conductor (17) formed on the electrode (16), the light-shielding conductor being formed of a material which has a conductivity higher than that of the transparent conductive material and which has light-shielding property, the light-shielding conductor covering the semiconductor layer (14). This structure can inhibit exposure of the oxide semiconductor which forms the channel portion toward a light, and can lower the resistance of the electrode formed of the transparent conductive material.

Abstract translation: 在透明基板（10）中，形成由氧化物半导体形成的半导体层（14），所述半导体层（14）用作TFT（2）的沟道部分。 由透明导电材料形成并位于半导体层（14）上方的电极（16）和形成在电极（16）上的遮光导体（17），该遮光导体由具有 导电性高于透明导电材料，并且具有遮光性，所述遮光导体覆盖半导体层（14）。 这种结构可以抑制形成通道部分的氧化物半导体对光的暴露，并且可以降低由透明导电材料形成的电极的电阻。

公开(公告)号：US20180342218A1

公开(公告)日：2018-11-29

申请号：US16050874

申请日：2018-07-31

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoshihisa OOISHI ,  Genshiro KAWACHI ,  Kazuo KITA ,  Toshikazu KOUDO ,  Hideyuki NAKANISHI

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2310/0218 ,  G09G2310/0281 ,  G09G2310/0297 ,  G09G2310/067 ,  G09G2310/08

Abstract: A display apparatus includes an image display region having pixels sectioned by scanning signal lines and video signal lines, scanning connecting lines, thin film transistors, selection signal lines connected to gate electrodes of the thin film transistors, plural ones of the thin film transistors connected to different ones of the scanning connecting lines being connected to one of the selection signal lines; and a scanning signal drive circuit. The scanning signal drive circuit performs a normal scanning mode in which pulse signals are supplied in turn to plural ones of the scanning connecting lines connected to the one of the selection signal lines, and in the normal scanning mode, a fall timing of the gate-on voltage differs from a fall timing of a last one of the pulse signals supplied to the plural ones of the scanning connecting lines during the selection period.

公开(公告)号：US20180190234A1

公开(公告)日：2018-07-05

申请号：US15908173

申请日：2018-02-28

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Genshiro KAWACHI ,  Kazuo KITA

IPC: G09G3/36 ,  G02F1/1345

CPC classification number: G09G3/3677 ,  G02F1/13452 ,  G09G2300/0417 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2310/0213

Abstract: Provided is a liquid crystal display device, including: a plurality of scanning connection lines formed on at least one side of edges of the image display region, the plurality of scanning connection lines connecting together a scanning signal drive circuit and a plurality of scanning signal lines; a selection circuit formed so as to be interposed between the plurality of scanning connection lines and the plurality of scanning signal lines, the selection circuit being configured to selectively short-circuit one of a plurality of the scanning signal lines to one of the plurality of scanning connection lines based on a selection signal; and a selection signal line connected to the selection circuit, the selection signal line transmitting the selection signal to the selection circuit.

公开(公告)号：US20150077393A1

公开(公告)日：2015-03-19

申请号：US14547592

申请日：2014-11-19

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Genshiro KAWACHI ,  Kazuo KITA ,  Kikuo ONO

IPC: G06F3/044 ,  G02F1/1333

CPC classification number: G06F3/044 ,  G02F1/1333 ,  G02F1/13338 ,  G02F1/134363 ,  G06F3/0412

Abstract: An embedded touch screen, including: a first substrate including, on a front surface thereof, a plurality of detecting electrodes extending in a second direction; a second substrate having an image region in which a plurality of pixels are arranged in matrix, the second substrate including: a pixel electrode connected to corresponding one of the plurality of video signal lines via a switching element connected to corresponding one of the plurality of scanning signal lines in each of the plurality of pixels; and a common electrode; a liquid crystal layer sandwiched between the first substrate and the second substrate; an application circuit for applying an alternating signal to the pixel electrode; a detection circuit for detecting a signal excited on the corresponding one of the plurality of detecting electrodes; and a scanning circuit for scanning the pixel electrode in the second direction during detection by the detection circuit.

Abstract translation: 一种嵌入式触摸屏，包括：第一基板，其前表面上包括沿第二方向延伸的多个检测电极; 具有多个像素排列成矩阵的图像区域的第二基板，所述第二基板包括：连接到所述多个扫描中的相应一个的开关元件的连接到所述多个视频信号线中的对应的一个的像素电极 多个像素中的每一个中的信号线; 和公共电极; 夹在第一基板和第二基板之间的液晶层; 用于向像素电极施加交替信号的应用电路; 检测电路，用于检测在所述多个检测电极中的相应一个上激发的信号; 以及扫描电路，用于通过检测电路在检测期间沿第二方向扫描像素电极。