公开(公告)号：US09153044B2

公开(公告)日：2015-10-06

申请号：US14004712

申请日：2012-03-14

申请人： Tatsuhiko Suyama ,  Kouji Kumada ,  Noriyuki Tanaka

发明人： Tatsuhiko Suyama ,  Kouji Kumada ,  Noriyuki Tanaka

IPC分类号： G06T11/00 ,  G09G3/36 ,  G09G3/34

CPC分类号： G06T11/001 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0233 ,  G09G2320/0285

摘要： A liquid crystal display device 10 according to the present invention includes a processing device 12 configured to process an image signal D to be input into a pixel P of a liquid crystal panel 40 configured to provide a display based on light applied from LEDs 54 arranged in a peripheral area R2. The process device 12 includes a receiving section 22, a correction section 24, and a calculation section 28, for example. The calculation section is configured to calculate luminance components to be provided by the respective LEDs 54 to the pixel P based on a distance between each LED 54 and the pixel P, add a total luminance that is a sum of the luminance components to be provided by the LEDs 54 to a predetermined expected luminance to calculate an added luminance, and calculate a correction coefficient HP with respect to the pixel P based on a luminance ratio between the added luminance and the reference luminance.

摘要翻译： 根据本发明的液晶显示装置10包括处理装置12，其被配置为处理要输入到液晶面板40的像素P中的图像信号D，该液晶面板被配置为基于从布置在其中的LED 54施加的光提供显示 外围区域R2。 处理装置12例如包括接收部22，校正部24和计算部28。 计算部分被配置为基于每个LED 54与像素P之间的距离来计算由各个LED 54提供给像素P的亮度分量，并且添加作为由LED 54提供的亮度分量之和的总亮度， LED 54达到预定的预期亮度以计算附加的亮度，并且基于添加的亮度和参考亮度之间的亮度比来计算相对于像素P的校正系数HP。

公开(公告)号：US20140009484A1

公开(公告)日：2014-01-09

申请号：US14004712

申请日：2012-03-14

申请人： Tatsuhiko Suyama ,  Kouji Kumada ,  Noriyuki Tanaka

发明人： Tatsuhiko Suyama ,  Kouji Kumada ,  Noriyuki Tanaka

IPC分类号： G06T11/00

CPC分类号： G06T11/001 ,  G09G3/3406 ,  G09G3/3611 ,  G09G2320/0233 ,  G09G2320/0285

摘要： A liquid crystal display device 10 according to the present invention includes a processing device 12 configured to process an image signal D to be input into a pixel P of a liquid crystal panel 40 configured to provide a display based on light applied from LEDs 54 arranged in a peripheral area R2. The process device 12 includes a receiving section 22, a correction section 24, and a calculation section 28, for example. The calculation section is configured to calculate luminance components to be provided by the respective LEDs 54 to the pixel P based on a distance between each LED 54 and the pixel P, add a total luminance that is a sum of the luminance components to be provided by the LEDs 54 to a predetermined expected luminance to calculate an added luminance, and calculate a correction coefficient HP with respect to the pixel P based on a luminance ratio between the added luminance and the reference luminance.

摘要翻译： 根据本发明的液晶显示装置10包括处理装置12，其被配置为处理要输入到液晶面板40的像素P中的图像信号D，该液晶面板被配置为基于从布置在其中的LED 54施加的光提供显示 外围区域R2。 处理装置12例如包括接收部22，校正部24和计算部28。 计算部分被配置为基于每个LED 54与像素P之间的距离来计算由各个LED 54提供给像素P的亮度分量，并且添加作为由LED 54提供的亮度分量之和的总亮度， LED 54达到预定的预期亮度以计算附加的亮度，并且基于添加的亮度和参考亮度之间的亮度比来计算相对于像素P的校正系数HP。

公开(公告)号：US20140078196A1

公开(公告)日：2014-03-20

申请号：US14118937

申请日：2012-05-24

申请人： Kouji Kumada ,  Noriyuki Tanaka ,  Tatsuhiko Suyama

发明人： Kouji Kumada ,  Noriyuki Tanaka ,  Tatsuhiko Suyama

IPC分类号： G09G3/36

CPC分类号： G09G3/3685 ,  G09G3/2014 ,  G09G3/3648 ,  G09G3/3696

摘要： An object of the invention of the present application is to drive data signal lines accurately by pulse width modulation driving and display gradations accurately. A PWM pattern generating circuit (12) generates 2q sets of PWM patterns associated with combinations of a gradation and the polarity of a gradation voltage. A selector (15) selects one PWM pattern from among the 2p+q PWM patterns, based on gradation data and a pattern set number. A charge and discharge control circuit (16) controls a charge and discharge circuit (17) to apply a charge voltage and a discharge voltage to a data signal line in a switching manner, based on the selected PWM pattern. One correction pulse may be selected for each data signal line from among a plurality of types of generated correction pulses, and a charge voltage may be applied to the data signal line based on the correction pulse. A plurality of charging transistors may be provided, and a charging transistor to be used may be specified for each data signal line, according to the temperature.

摘要翻译： 本发明的目的是通过脉宽调制驱动和显示灰度准确地驱动数据信号线。 PWM模式发生电路（12）产生与灰度级和灰度电压的极性相关联的2q组PWM模式。 选择器（15）基于灰度数据和图案集编号从2p + q个PWM模式中选择一个PWM模式。 充放电控制电路（16）基于选择的PWM模式控制充放电电路（17）以切换方式向数据信号线施加充电电压和放电电压。 可以从多种类型的所生成的校正脉冲中的每个数据信号线选择一个校正脉冲，并且可以基于校正脉冲将充电电压施加到数据信号线。 可以提供多个充电晶体管，并且可以根据温度为每个数据信号线指定要使用的充电晶体管。

公开(公告)号：US20050179640A1

公开(公告)日：2005-08-18

申请号：US11058272

申请日：2005-02-16

申请人： Noriyuki Tanaka ,  Kouji Kumada

发明人： Noriyuki Tanaka ,  Kouji Kumada

IPC分类号： G02F1/1333 ,  G02F1/133 ,  G02F1/1343 ,  G02F1/1368 ,  G09F9/35 ,  G09F9/40 ,  G09G3/20 ,  G09G3/36

CPC分类号： G09G3/3688 ,  G09G3/3666

摘要： The sub panel 100, having a plurality of gate bus lines 14, source bus lines 16, TFTs 25 and pixel electrodes, is provided with a source driver 15. The main panel 200 has a plurality of gate bus lines 24, source bus lines 16, TFTs 25 and pixel electrodes, each of the source bus lines 16 being connected to the corresponding source bus lines 16 of the first liquid crystal panel 10 through a switching TFT 17. The main panel 200, sharing the source driver 15 with the first liquid crystal panel 10, is less frequently used for display than the first liquid crystal panel 10, and is disconnected by the switching TFT 17 when only the sub panel 100 is used. This makes it possible to device a twin-panel display device low in electric power consumption.

摘要翻译： 具有多个栅极总线14，源极总线16，TFT25和像素电极的子面板100设置有源极驱动器15。 主面板200具有多个栅极总线24，源极总线16，TFT25和像素电极，每个源极总线16通过开关连接到第一液晶面板10的对应的源极总线16 TFT 17。 与第一液晶面板10共享源极驱动器15的主面板200比第一液晶面板10不太频繁地用于显示，并且仅在使用子面板100时被开关TFT 17断开。 这使得可以设置低功耗的双面显示装置。

公开(公告)号：US07479932B2

公开(公告)日：2009-01-20

申请号：US11058272

申请日：2005-02-16

申请人： Noriyuki Tanaka ,  Kouji Kumada

发明人： Noriyuki Tanaka ,  Kouji Kumada

IPC分类号： G09G5/00

CPC分类号： G09G3/3688 ,  G09G3/3666

摘要： The sub panel 100, having a plurality of gate bus lines 14, source bus lines 16, TFTs 25 and pixel electrodes, is provided with a source driver 15. The main panel 200 has a plurality of gate bus lines 24, source bus lines 16, TFTs 25 and pixel electrodes, each of the source bus lines 16 being connected to the corresponding source bus lines 16 of the first liquid crystal panel 10 through a switching TFT 17. The main panel 200, sharing the source driver 15 with the first liquid crystal panel 10, is less frequently used for display than the first liquid crystal panel 10, and is disconnected by the switching TFT 17 when only the sub panel 100 is used. This makes it possible to device a twin-panel display device low in electric power consumption.

摘要翻译： 具有多个栅极总线14，源极总线16，TFT25和像素电极的子面板100设置有源极驱动器15.主面板200具有多个栅极总线24，源极总线16 ，TFT25和像素电极，每个源极总线16通过开关TFT 17连接到第一液晶面板10的对应的源极总线16.主面板200将源极驱动器15与第一液体 晶体面板10比第一液晶面板10更不频繁地用于显示，并且仅在使用子面板100时由开关TFT 17断开。 这使得可以设置低功耗的双面显示装置。

公开(公告)号：US07330173B2

公开(公告)日：2008-02-12

申请号：US11104465

申请日：2005-04-13

申请人： Kouji Kumada ,  Noriyuki Tanaka

发明人： Kouji Kumada ,  Noriyuki Tanaka

IPC分类号： G09G3/36

CPC分类号： G09G3/3648 ,  G09G3/3666 ,  G09G2300/02 ,  G09G2300/08 ,  G09G2310/0275 ,  G09G2310/06 ,  G09G2340/145 ,  H04M2250/16 ,  H04W52/0251

摘要： In a display, a first liquid crystal panel has gate bus lines, source bus lines, TFTs, and pixel electrodes, as well as a source driver. A second liquid crystal panel has gate bus lines, source bus lines, TFTs, and pixel electrodes. The source bus lines of the second liquid crystal panel are connected to the associated source bus lines of the first liquid crystal panel through switching TFTs. The source bus lines of the second liquid crystal panel are briefly and repeatedly fed with a predetermined potential when the switching TFTs are off. The invention reduces power consumption of dual panel structure displays and prevents occurrence of an unintended display on the second display panel which is not expected to produce any display.

摘要翻译： 在显示器中，第一液晶面板具有栅极总线，源极总线，TFT和像素电极以及源极驱动器。 第二液晶面板具有栅极总线，源极总线，TFT和像素电极。 第二液晶面板的源极总线通过开关TFT连接到第一液晶面板的相关源极总线。 当开关TFT关闭时，第二液晶面板的源极总线短暂反复地馈送预定电位。 本发明降低了双面板结构显示器的功耗，并且防止在第二显示面板上出现不期望的显示器的意外显示。

公开(公告)号：US20050231494A1

公开(公告)日：2005-10-20

申请号：US11104465

申请日：2005-04-13

申请人： Kouji Kumada ,  Noriyuki Tanaka

发明人： Kouji Kumada ,  Noriyuki Tanaka

IPC分类号： G02F1/1333 ,  G02F1/133 ,  G09G3/20 ,  G09G3/36 ,  G09G5/00 ,  H04M1/73

CPC分类号： G09G3/3648 ,  G09G3/3666 ,  G09G2300/02 ,  G09G2300/08 ,  G09G2310/0275 ,  G09G2310/06 ,  G09G2340/145 ,  H04M2250/16 ,  H04W52/0251

摘要： In a display, a first liquid crystal panel has gate bus lines, source bus lines, TFTs, and pixel electrodes, as well as a source driver. A second liquid crystal panel has gate bus lines, source bus lines, TFTs, and pixel electrodes. The source bus lines of the second liquid crystal panel are connected to the associated source bus lines of the first liquid crystal panel through switching TFTs. The source bus lines of the second liquid crystal panel are briefly and repeatedly fed with a predetermined potential when the switching TFTs are off. The invention reduces power consumption of dual panel structure displays and prevents occurrence of an unintended display on the second display panel which is not expected to produce any display.

摘要翻译： 在显示器中，第一液晶面板具有栅极总线，源极总线，TFT和像素电极以及源极驱动器。 第二液晶面板具有栅极总线，源极总线，TFT和像素电极。 第二液晶面板的源极总线通过开关TFT连接到第一液晶面板的相关源极总线。 当开关TFT关闭时，第二液晶面板的源极总线短暂反复地馈送预定电位。 本发明降低了双面板结构显示器的功耗，并且防止在第二显示面板上出现不期望的显示器的意外显示。

公开(公告)号：US20100295833A1

公开(公告)日：2010-11-25

申请号：US12864099

申请日：2009-01-14

申请人： Masaaki Nishio ,  Kouji Kumada

发明人： Masaaki Nishio ,  Kouji Kumada

IPC分类号： G09G5/00

CPC分类号： G06F3/042 ,  G06F3/0412 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2360/142

摘要： The present invention provides an active matrix display device, including: a data signal line drive circuit mounted by COG (Chip On Glass) bonding; a photosensor, which is included in a display region, for (i) detecting light intensity and (ii) sending out an analog output serving as a signal indicative of the detected light intensity; and a common electrode (COM) to which a voltage being AC-driven is applied. The data signal line drive circuit includes an analog-to-digital conversion circuit which converts the analog output supplied from the photosensor into a digital output. The conversion is carried out during a first period, which overlaps none of (a) a time point at which each of the scanning signal lines starts being in a selected state, (b) a period during which data signals are sent out to respective data signal lines, and (c) a time point at which the voltage of the common electrode changes. Accordingly, it is possible to provide a display device employing a COG technique, which is capable of carrying out analog-to-digital conversion of the analog output supplied from the photosensor.

摘要翻译： 本发明提供一种有源矩阵显示装置，包括：由COG（玻璃上芯片）接合安装的数据信号线驱动电路; 包括在显示区域中的光传感器，用于（i）检测光强度，以及（ii）发出用作表示检测到的光强度的信号的模拟输出; 以及施加有AC驱动电压的公共电极（COM）。 数据信号线驱动电路包括将从光电传感器提供的模拟输出转换为数字输出的模数转换电路。 转换在第一时段期间进行，其中，（a）每个扫描信号线开始的时间点处于选择状态，（b）数据信号被发送到相应数据的周期 信号线，（c）公共电极的电压变化的时间点。 因此，可以提供一种采用COG技术的显示装置，其能够执行从光电传感器提供的模拟输出的模数转换。

公开(公告)号：US20080246721A1

公开(公告)日：2008-10-09

申请号：US12071114

申请日：2008-02-15

申请人： Kouji Kumada ,  Takashige Ohta ,  Haruhito Kagawa

发明人： Kouji Kumada ,  Takashige Ohta ,  Haruhito Kagawa

IPC分类号： G09G3/36

CPC分类号： G09G3/3685 ,  G09G3/2014 ,  G09G3/3614 ,  G09G3/3648 ,  G09G2300/08 ,  G09G2330/021

摘要： An image display according to the present invention includes a driving device which performs pulse width modulation drive, restrains power consumption, and produces a good multi-tone display. The image display makes the difference between the scan line voltage and the signal line voltage equal in positive polarity writing and negative polarity writing by which pixels are AC driven, so as to make the on-resistances of transistors equal. This allows a maximum pulse width, the size of switching elements, etc. to be determined first so that they match positive polarity writing in which the resistances value of the switching elements rise. No high frequency clock is required to produce subtle differences of charge ratio in negative polarity writing in which the resistances of the switching elements fall. Power consumption which depends on the clock frequency drops too.

摘要翻译： 根据本发明的图像显示器包括执行脉宽调制驱动的驱动装置，抑制功耗，并产生良好的多色调显示。 图像显示使扫描线电压和信号线电压之间的差异在正极性写入和负极性写入中相等，通过该驱动将像素交替驱动，以使晶体管的导通电阻相等。 这允许首先确定最大脉冲宽度，开关元件的尺寸等，使得它们匹配开关元件的电阻值上升的正极性写入。 不需要高频时钟来产生负极性写入中的电荷比的微妙差异，其中开关元件的电阻下降。 取决于时钟频率的功耗也会下降。

公开(公告)号：US5929925A

公开(公告)日：1999-07-27

申请号：US779032

申请日：1997-01-06

申请人： Moritaka Nakamura ,  Kouji Kumada ,  Yukihiro Nakahara

发明人： Moritaka Nakamura ,  Kouji Kumada ,  Yukihiro Nakahara

IPC分类号： G09G3/36 ,  G09G3/20 ,  G11C19/00 ,  H04N5/66 ,  H04N5/46

CPC分类号： G09G3/3685 ,  H04N5/66 ,  H04N7/0122 ,  G09G2310/0232 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2340/0442 ,  G09G2340/0478 ,  G09G2352/00

摘要： A matrix type display device capable of receiving more than one video signal, which displays an image based on a first video signal with a smaller aspect ratio than an aspect ratio of a screen in width by inputting a second video signal in sync with a first video signal to at least a part of column drivers corresponding to a remaining portion on the screen where the image based on the first video signal is not displayed, so that the processing of the first and second video signals is started at the same time and carried out at the same timing. Consequently, the present matrix type display device can readily display a natural image based on an input video signal with a smaller aspect ratio than the that of the screen.

摘要翻译： 一种矩阵型显示装置，其能够接收多于一个视频信号，其通过与第一视频同步地输入第二视频信号，基于具有比宽屏幕的宽高比更小的纵横比的第一视频信号显示图像 向至少一部分列驱动器发送信号，该列驱动器对应于不显示基于第一视频信号的图像的屏幕上的剩余部分，使得第一和第二视频信号的处理同时开始并执行 在同一时间。 因此，本矩阵型显示装置可以容易地以比屏幕的纵横比小的输入视频信号显示自然图像。