公开(公告)号：US20190325833A1

公开(公告)日：2019-10-24

申请号：US16460477

申请日：2019-07-02

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Hideyuki NOGUCHI ,  Toshiki ONISHI ,  Yoshihisa OOISHI

IPC: G09G3/36

Abstract: A liquid crystal display device that performs phase inversion drive in which a phase of a polarity of a data voltage is inverted in predetermined timing while performing frame inversion drive in which a positive-polarity data voltage and a negative-polarity data voltage are alternately output to a data line in each one or plurality of frames. In a first frame immediately after the phase is inverted, the source driver outputs a second data voltage to the data line in initial first periods of a horizontal scanning period, the second data voltage being closer to the common voltage than a first data voltage corresponding to input image data, and outputs the first data voltage to the data line in a second period after the first period in the horizontal scanning period.

公开(公告)号：US20180268770A1

公开(公告)日：2018-09-20

申请号：US15983447

申请日：2018-05-18

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Hideyuki NAKANISHI ,  Yoshihisa OOISHI

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0213 ,  G09G2310/0278 ,  G09G2310/062 ,  G09G2320/0204 ,  G09G2320/0271 ,  G09G2330/021

Abstract: A display device includes data lines extending in a first direction, gate lines extending in a second direction, a source driver that supplies a data signal to the data lines, a gate driver that supplies a gate signal to the gate lines, and a timing controller that determines scan order of the gate lines and outputs image data to the source driver based on the scan order. The timing controller determines the scan order of the gate lines based on an input image corresponding to input image data input from an outside, and switches first scan order and second scan order in each frame, the first scan order and the second scan order being different from each other in the scan order.

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：US20140225877A1

公开(公告)日：2014-08-14

申请号：US14175633

申请日：2014-02-07

Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.

Inventor： Hideyuki NAKANISHI ,  Yoshihisa OOISHI ,  Sachiko YAMAZAKI

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3677 ,  G09G2310/0213 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: A display device includes a display portion having gate and source signal lines, and a plurality of pixels, a gate driver that outputs gate signals, a source driver that outputs source signals, and a controller that causes the display portion to display an image at a frame frequency. The controller sets the frame frequency to a first frame frequency F1 when the image is a moving picture, and the controller sets the frame frequency to a second frame frequency F2 lower than F1 when the image is a still picture. The gate driver outputs the gate signals to the gate signal lines in an aligned order of gate signal lines in a second direction when the frame frequency is F1, and the gate driver outputs the gate signals to the gate signal lines in different order from the array order when the frame frequency is F2.

Abstract translation: 显示装置包括具有栅极和源极信号线的显示部分，以及多个像素，输出栅极信号的栅极驱动器，输出源极信号的源极驱动器，以及使显示部分显示图像的控制器 帧频。 当图像是运动图像时，控制器将帧频设置为第一帧频F1，并且当图像是静止图像时，控制器将帧频设置为低于F1的第二帧频F2。 栅极驱动器在帧频为F1时以第二方向以栅极信号线的排列顺序将栅极信号输出到栅极信号线，并且栅极驱动器以与阵列不同的顺序将栅极信号输出到栅极信号线 帧频为F2时的顺序。

公开(公告)号：US20170092219A1

公开(公告)日：2017-03-30

申请号：US15280573

申请日：2016-09-29

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoshihisa OOISHI ,  Daisuke KAJITA ,  Genshiro KAWACHI ,  Sachiko YAMAZAKI ,  Kuniaki AMANO

IPC: G09G3/36 ,  G02F1/1368 ,  G02F1/1362

CPC classification number: G09G3/3696 ,  G02F1/134309 ,  G02F1/1345 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2310/08

Abstract: A display device comprises: data lines extending in a first direction; gate lines extending in a second direction, and being divided into groups each of which has the gate lines adjacent in the first direction; selection signal supplying wirings each of which is provided in each group, and connected to each control electrode of the selector transistors corresponding to the group; gate voltage supplying wirings connected to the other conductive electrode of each of the selector transistors corresponding to the group; and wherein a gate driver supplies a second gate voltage having a voltage level lower than that of a first gate voltage to at least one of the gate voltage supplying wirings in each of the groups before supplying the first gate voltage in order to turn on a pixel transistor disposed in an intersection portion of the data line and the gate line.

公开(公告)号：US20160267869A1

公开(公告)日：2016-09-15

申请号：US15159343

申请日：2016-05-19

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

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

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G3/3208 ,  G09G3/3266 ,  G09G2300/0408 ,  G09G2310/0218 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0264 ,  G09G2310/0281 ,  G09G2310/0297 ,  G09G2310/061 ,  G09G2310/062 ,  G09G2310/065 ,  G09G2310/067 ,  G09G2320/043 ,  H01L27/124

Abstract: A display device includes an image display area that includes pixels sectioned by scanning signal lines and video signal lines, first scanning connection lines connected to scanning signal lines, first thin film transistors, first selection signal lines, second thin film transistors, second selection signal lines, and a scanning signal drive circuit connected to the first scanning connection lines, the first selection signal lines, and the second selection signal lines, wherein the scanning signal drive circuit sequentially supplies a pulse signal to the first scanning connection lines in a selection period in which a gate-on voltage is applied to the one of the first selection signal lines, and the scanning signal drive circuit applies a gate-off voltage to the one of the second selection signal lines corresponding to the one of the first selection signal lines to which the gate-on voltage is applied.

Abstract translation: 显示装置包括图像显示区域，包括通过扫描信号线和视频信号线分割的像素，连接到扫描信号线的第一扫描连接线，第一薄膜晶体管，第一选择信号线，第二薄膜晶体管，第二选择信号线 以及连接到第一扫描连接线，第一选择信号线和第二选择信号线的扫描信号驱动电路，其中扫描信号驱动电路在选择周期内向第一扫描连接线顺序地提供脉冲信号 对第一选择信号线之一施加栅极导通电压，扫描信号驱动电路对与第一选择信号线对应的第二选择信号线之一施加栅极截止电压， 施加栅极导通电压。

公开(公告)号：US20130234920A1

公开(公告)日：2013-09-12

申请号：US13785918

申请日：2013-03-05

Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.

Inventor： Ryutaro OKE ,  Yoshihisa OOISHI

IPC: G09G3/36

CPC classification number: G09G3/3655 ,  G09G3/3614 ,  G09G3/3674 ,  G09G2320/0204

Abstract: Provided is a liquid crystal display device capable of preventing a type of screen burn-in phenomenon caused by fluctuations in DC component of a liquid crystal drive voltage, which occurs when the refresh rate is switched. A control device can perform quadruple speed drive and double speed drive of a liquid crystal panel in an inversion drive method. A common electrode is supplied with a common voltage set in advance based on a midpoint potential in inversion drive of voltages set for a pixel electrode in the quadruple speed drive. In both of the quadruple speed drive and the double speed drive switched from the quadruple speed drive, a width of a scanning pulse (Pk) of a gate voltage (VGk) is set to a width of 1H in the quadruple speed drive.

Abstract translation: 提供一种液晶显示装置，其能够防止当切换刷新率时发生的液晶驱动电压的DC分量的波动引起的屏幕老化现象。 控制装置可以以反转驱动方式进行液晶面板的四倍速驱动和双速驱动。 基于在四倍速驱动器中为像素电极设置的电压的反转驱动中的中点电位，提供公共电极预先设定的公共电压。 在从四倍速驱动器切换的四倍速驱动和双速驱动的两者中，在四倍速驱动中将栅极电压（VGk）的扫描脉冲（Pk）的宽度设定为1H的宽度。

公开(公告)号：US20140232765A1

公开(公告)日：2014-08-21

申请号：US14263690

申请日：2014-04-28

Applicant: Japan Display Inc. ,  Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Yoshihisa OOISHI ,  Masato ISHII ,  Junichi MARUYAMA ,  Goki TOSHIMA

IPC: G09G3/36

CPC classification number: G09G3/3659 ,  G09G3/3607 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2310/0251 ,  G09G2320/0276

Abstract: A liquid crystal display device which includes one image signal line which is connected to a plurality of pixels, a scanning line drive part which outputs an ON voltage to the respective pixels in a predetermined order, and a data line drive part which outputs image signal voltages. The data line drive part outputs a gray level signal voltage corresponding to a gray level value of the pixel as an image signal voltage in a first period, and outputs a correction gray level signal voltage different from the gray level signal voltage as an image signal voltage in a second period which precedes the first period. The liquid crystal display device further includes a control part which generates the correction gray level signal voltage based on the gray level value of the pixel and one or plurality of gray level values of pixels which precede the pixel in order.

Abstract translation: 一种液晶显示装置，包括连接到多个像素的一个图像信号线，以预定顺序向各个像素输出导通电压的扫描线驱动部分和输出图像信号电压的数据线驱动部分 。 数据线驱动部在第一时间段中输出与像素的灰度值对应的灰度级信号电压作为图像信号电压，并输出与灰度级信号电压不同的校正灰度级信号电压作为图像信号电压 在第一个时期之前的第二个时期。 液晶显示装置还包括：控制部，其基于像素的灰度级产生校正灰度级信号电压;以及按照像素之前的像素的一个或多个灰度级值生成校正灰度级信号电压。

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：US20170287420A1

公开(公告)日：2017-10-05

申请号：US15473090

申请日：2017-03-29

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Hideyuki NOGUCHI ,  Toshiki ONISHI ,  Yoshihisa OOISHI

IPC: G09G3/36 ,  G02F1/1343 ,  G02F1/1362

CPC classification number: G09G3/3614 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2320/0247

Abstract: A liquid crystal display device that performs phase inversion drive in which a phase of a polarity of a data voltage is inverted in predetermined timing while performing frame inversion drive in which a positive-polarity data voltage and a negative-polarity data voltage are alternately output to a data line in each one or plurality of frames. In a first frame immediately after the phase is inverted, the source driver outputs a second data voltage to the data line in initial first periods of a horizontal scanning period, the second data voltage being closer to the common voltage than a first data voltage corresponding to input image data, and outputs the first data voltage to the data line in a second period after the first period in the horizontal scanning period.