公开(公告)号：US09390662B2

公开(公告)日：2016-07-12

申请号：US13724912

申请日：2012-12-21

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Kobayashi ,  Yoshio Umeda ,  Hideki Abe ,  Takayuki Tajiri ,  Yoshihisa Ooishi ,  Shinji Yasukawa

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A liquid crystal display device includes: a liquid crystal display unit that displays, for each of frames, an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to pixels of the liquid crystal display unit; and a control unit that controls an amplitude of the voltage applied to the pixels. The drive unit applies, in one of the frames, a voltage of the same polarity to the pixels connected to one of the source signal lines. The control unit includes: a temperature-information acquiring unit that acquires temperature information of the drive unit; and a filter unit that acquires high-frequency and low-frequency components of the input image signal in a substantial extending direction of the source signal lines. The control unit controls the amplitude of the applied voltage using the temperature information and an output value of the high-frequency component.

Abstract translation: 一种液晶显示装置，包括：液晶显示单元，对于每个帧，基于输入图像信号显示图像; 驱动单元，其将基于所述输入图像信号的电压施加到所述液晶显示单元的像素; 以及控制单元，其控制施加到像素的电压的幅度。 驱动单元在一个帧中施加与连接到源信号线之一的像素具有相同极性的电压。 控制单元包括：温度信息获取单元，其获取驱动单元的温度信息; 以及滤波器单元，其在所述源极信号线的大致延伸方向上获取所述输入图像信号的高频和低频分量。 控制单元使用温度信息和高频分量的输出值来控制施加电压的幅度。

公开(公告)号：US20130169618A1

公开(公告)日：2013-07-04

申请号：US13730004

申请日：2012-12-28

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Kobayashi ,  Yoshio Umeda

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G3/36 ,  G09G3/3614 ,  G09G2310/0224 ,  G09G2320/0204 ,  G09G2340/16

Abstract: A liquid crystal display device includes: a liquid crystal display unit that includes pixels and displays an image based on an input image signal input for each of frames; a drive unit that applies a voltage based on the input image signal to the pixels of the liquid crystal display unit while inverting a polarity of the voltage for each of the frames; a signal discrimination unit that discriminates whether the input image signal is an interlaced signal; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the signal discrimination unit discriminates that the input image signal is the interlaced signal. The drive unit inverts the phase of the polarity of the voltage applied to the pixels when the signal generation unit generates the phase inversion enabling signal.

Abstract translation: 液晶显示装置包括：液晶显示单元，其包括像素，并且基于为每个帧输入的输入图像信号显示图像; 驱动单元，其在将每个帧的电压的极性反转的同时，将基于输入图像信号的电压施加到液晶显示单元的像素; 鉴别输入图像信号是否是隔行扫描信号的信号鉴别单元; 在信号鉴别单元鉴别出输入图像信号是隔行信号的情况下，生成用于反转施加到像素的电压的极性的相位的相位反转使能信号的信号生成单元。 当信号产生单元产生相位反转使能信号时，驱动单元反转施加到像素的电压的极性的相位。

公开(公告)号：US09019325B2

公开(公告)日：2015-04-28

申请号：US13721213

申请日：2012-12-20

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Kobayashi ,  Yoshio Umeda

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G3/3611 ,  G09G3/3614 ,  G09G2320/0204 ,  G09G2360/16

Abstract: A liquid crystal display device includes: a liquid crystal display unit including pixels and displaying an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to the pixels while inverting a polarity of the voltage for each of frames; a luminance determination unit that determines whether a detected average luminance has changed, between the frames, by an amount equal to or more than a reference luminance; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the luminance determination unit determines that the average luminance has changed by the above amount, wherein the drive unit inverts the phase of the polarity of the voltage applied to the pixels when the phase inversion enabling signal is generated.

Abstract translation: 液晶显示装置包括：液晶显示单元，包括像素并基于输入图像信号显示图像; 驱动单元，其将反映所述各帧的电压的极性的像素施加基于所述输入图像信号的电压， 亮度确定单元，确定帧之间的检测平均亮度是否已经改变等于或大于参考亮度的量; 以及信号生成单元，其在所述亮度判定单元判定所述平均亮度变化了上述量的情况下，生成用于反转施加于所述像素的电压的极性的相位的相位反转使能信号，其中，所述驱动 当产生相位反转使能信号时，单元反转施加到像素的电压的极性的相位。

公开(公告)号：US09426456B2

公开(公告)日：2016-08-23

申请号：US13927374

申请日：2013-06-26

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Kobayashi ,  Yoshio Umeda

IPC: H04N13/04 ,  G09G3/00 ,  G09G3/36

CPC classification number: H04N13/398 ,  G09G3/003 ,  G09G3/3611 ,  G09G2340/0407 ,  G09G2340/0435

Abstract: A display device includes: a liquid crystal panel which has a display surface including pixels, and displays frame images; a generation portion which generates a first and a second image signals based on a frame image signal, the first image signal rendering an image of a lower resolution than the frame image signal and including data to be written to all the pixels, the second image signal including data to be written to a part of the pixels and not including data to be written to remaining pixels other than the part of the pixels; and a liquid crystal driver which executes, after executing a first scanning operation, a second scanning operation in which scanning based on the second image signal is executed, to drive the liquid crystal panel, wherein data that has been written to the remaining pixels is held in the second scanning operation.

Abstract translation: 显示装置包括：液晶面板，具有包括像素的显示面，并显示帧图像; 产生部分，其基于帧图像信号产生第一和第二图像信号，所述第一图像信号渲染比所述帧图像信号更低分辨率的图像，并且包括要写入所有像素的数据，所述第二图像信号 包括要写入一部分像素的数据，并且不包括要写入除了该像素的一部分之外的剩余像素的数据; 以及液晶驱动器，其在执行第一扫描操作之后执行其中执行基于所述第二图像信号的扫描的第二扫描操作以驱动所述液晶面板，其中已经写入剩余像素的数据被保持 在第二扫描操作中。

公开(公告)号：US09142170B2

公开(公告)日：2015-09-22

申请号：US13730115

申请日：2012-12-28

Applicant: Panasonic Liquid Crystal Display Co., Ltd

Inventor： Takahiro Kobayashi ,  Yoshio Umeda

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G06T5/20 ,  G09G3/36 ,  G09G3/3648 ,  G09G2320/0238 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2360/16

Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.

Abstract translation: 本申请公开了一种液晶显示装置，用于在显示面上显示以矩阵排列的像素的视频。 每个像素具有由色相中的不同滤色器部分形成的三个子像素。 显示面包括像素组。 每个像素组被定义为在垂直和水平方向中的至少一个中包括彼此相邻的两个或三个像素。 在每个像素组中的每个色调上的滤色器部分之一上形成有开口。

公开(公告)号：US09472145B2

公开(公告)日：2016-10-18

申请号：US14826164

申请日：2015-08-13

Applicant: Panasonic Liquid Crystal Display Co., Ltd.

Inventor： Takahiro Kobayashi ,  Yoshio Umeda

IPC: G02F1/1335 ,  G09G3/36 ,  G06T5/20

CPC classification number: G09G3/3607 ,  G06T5/20 ,  G09G3/36 ,  G09G3/3648 ,  G09G2320/0238 ,  G09G2320/0646 ,  G09G2320/0666 ,  G09G2360/16

Abstract: The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.

公开(公告)号：US09024923B2

公开(公告)日：2015-05-05

申请号：US13715960

申请日：2012-12-14

Applicant: Panasonic Liquid Crystal Display Co., Ltd. ,  Panasonic Corporation

Inventor： Takahiro Kobayashi ,  Yoshio Umeda ,  Katuji Tanaka

IPC: G09G3/34 ,  F21V8/00 ,  G09G5/00 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02B6/0073 ,  G02B6/0083 ,  G09G3/3406 ,  G09G3/3413 ,  G09G3/342 ,  G09G5/00 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/045 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: The liquid crystal display panel includes a liquid crystal display unit, and a backlight unit illuminating the liquid crystal display unit. The backlight unit includes first and second white light-emitting diodes that respectively emit white light, and first and second drive units that respectively supply a current to the first and second white light-emitting diodes. The first and second drive units are respectively configured to be able to adjust supply current to the first and second white light-emitting diodes. Chromaticities of the first and second white light-emitting diodes are of a relationship of being positioned opposite each other across a blackbody locus on an xy chromaticity diagram. The first and second white light-emitting diodes change over time so that, on the xy chromaticity diagram, an intersection point of the blackbody locus and a line that passes through the chromaticities of the first and second white light-emitting diodes becomes constant.

Abstract translation: 液晶显示面板包括液晶显示单元和照亮液晶显示单元的背光单元。 背光单元包括分别发射白光的第一和第二白色发光二极管以及分别向第一和第二白色发光二极管提供电流的第一和第二驱动单元。 第一驱动单元和第二驱动单元分别被配置为能够调整到第一和第二白色发光二极管的电源电流。 第一和第二白色发光二极管的色度具有在xy色度图上的黑体轨迹上彼此相对定位的关系。 第一和第二白色发光二极管随时间变化，使得在xy色度图上，黑体轨迹和穿过第一和第二白色发光二极管的色度的线的交点变得恒定。

公开(公告)号：US20130155040A1

公开(公告)日：2013-06-20

申请号：US13715960

申请日：2012-12-14

Applicant: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD. ,  PANASONIC CORPORATION

Inventor： Takahiro KOBAYASHI ,  Yoshio Umeda ,  Katuji Tanaka

IPC: G02F1/1335 ,  G09G5/00 ,  F21V8/00

CPC classification number: G02F1/133603 ,  G02B6/0073 ,  G02B6/0083 ,  G09G3/3406 ,  G09G3/3413 ,  G09G3/342 ,  G09G5/00 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/045 ,  H01L2224/48091 ,  H01L2924/00014

Abstract: The liquid crystal display panel includes a liquid crystal display unit, and a backlight unit illuminating the liquid crystal display unit. The backlight unit includes first and second white light-emitting diodes that respectively emit white light, and first and second drive units that respectively supply a current to the first and second white light-emitting diodes. The first and second drive units are respectively configured to be able to adjust supply current to the first and second white light-emitting diodes. Chromaticities of the first and second white light-emitting diodes are of a relationship of being positioned opposite each other across a blackbody locus on an xy chromaticity diagram. The first and second white light-emitting diodes change over time so that, on the xy chromaticity diagram, an intersection point of the blackbody locus and a line that passes through the chromaticities of the first and second white light-emitting diodes becomes constant.

Abstract translation: 液晶显示面板包括液晶显示单元和照亮液晶显示单元的背光单元。 背光单元包括分别发射白光的第一和第二白色发光二极管以及分别向第一和第二白色发光二极管提供电流的第一和第二驱动单元。 第一驱动单元和第二驱动单元分别被配置为能够调整到第一和第二白色发光二极管的电源电流。 第一和第二白色发光二极管的色度具有在xy色度图上的黑体轨迹上彼此相对定位的关系。 第一和第二白色发光二极管随时间变化，使得在xy色度图上，黑体轨迹和穿过第一和第二白色发光二极管的色度的线的交点变得恒定。