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：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：US20120062543A1

公开(公告)日：2012-03-15

申请号：US13138737

申请日：2009-12-10

申请人： Tatsuhiko Suyama ,  Norio Ohmura

发明人： Tatsuhiko Suyama ,  Norio Ohmura

IPC分类号： G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3655 ,  G09G2310/06 ,  G09G2330/021

摘要： A liquid crystal display apparatus is disclosed, which is capable of suppressing sound emission caused by the AC drive of liquid crystal while suppressing an increase in power consumption. A non-active period during which polarity reversal of a common electrode signal (VCOM) is repeated at predetermined intervals is provided in each horizontal scanning period. During an active period, a common electrode drive circuit provides a common electrode signal (VCOM) indicating either one of potentials LV1 and LV2 to a common electrode, based on a polarity instruction signal (POL). During the non-active period, the common electrode drive circuit provides a common electrode signal (VCOM) whose potential changes between LV3 and LV4 to the common electrode, based on a reversal timing control signal (CTRL). Here, the amplitude of the common electrode signal (VCOM) for the non-active period is made smaller than the amplitude of the common electrode signal (VCOM) for the active period.

摘要翻译： 公开了一种液晶显示装置，其能够抑制电力消耗的增加而抑制由液晶的交流驱动引起的声音发射。 在每个水平扫描周期中提供了以预定间隔重复公共电极信号（VCOM）的极性反转的非有效周期。 在激活期间，公共电极驱动电路基于极性指示信号（POL）向公共电极提供指示电位LV1和LV2中的任一个的公共电极信号（VCOM）。 在非活动期间，公共电极驱动电路基于反转定时控制信号（CTRL）提供公共电极信号（VCOM），其公共电极LV3和LV4之间的电位变化到公共电极。 这里，使非激活期间的公共电极信号（VCOM）的振幅小于有效期的公共电极信号（VCOM）的振幅。

公开(公告)号：US08300037B2

公开(公告)日：2012-10-30

申请号：US12452939

申请日：2008-04-24

申请人： Tatsuhiko Suyama

发明人： Tatsuhiko Suyama

IPC分类号： G09G5/00

CPC分类号： G09G3/3655 ,  G09G2300/0804 ,  G09G2310/0218 ,  G09G2310/0297 ,  G09G2320/0242 ,  G09G2320/0257

摘要： A liquid crystal display device includes a plurality of data signal lines and scanning signal lines intersecting orthogonally with the data signal lines; pixel electrodes each provided at each of intersections of the plurality of data signal lines and scanning signal lines; and a counter electrode, the plurality of data signal lines are divided into sets each including data signal lines that are provided next to one another so as to respectively correspond to primary colors constituting a display color, the data signal lines in each set being connected to one of output signal lines to which data signals corresponding to the primary colors are supplied during a single horizontal scanning period by time division, the data signals supplied to the output signal lines being switched, the counter electrode being subjected to application of a voltage being varied during at least one horizontal scanning period.

摘要翻译： 液晶显示装置包括与数据信号线正交相交的多条数据信号线和扫描信号线; 每个像素电极分别设置在多条数据信号线和扫描信号线的交点处; 和对电极，所述多条数据信号线被分割成各自包括彼此相邻设置的数据信号线，以分别对应于构成显示颜色的原色，每组中的数据信号线连接到 在单个水平扫描周期期间通过时分来提供对应于原色的数据信号的输出信号线之一，提供给输出信号线的数据信号被切换，对置电极被施加电压变化 在至少一个水平扫描期间。

公开(公告)号：US08872809B2

公开(公告)日：2014-10-28

申请号：US13138737

申请日：2009-12-10

申请人： Tatsuhiko Suyama ,  Norio Ohmura

发明人： Tatsuhiko Suyama ,  Norio Ohmura

IPC分类号： G06F3/038 ,  G09G5/00 ,  G09G3/36

CPC分类号： G09G3/3655 ,  G09G2310/06 ,  G09G2330/021

摘要： A liquid crystal display apparatus is disclosed, which is capable of suppressing sound emission caused by the AC drive of liquid crystal while suppressing an increase in power consumption. A non-active period during which polarity reversal of a common electrode signal (VCOM) is repeated at predetermined intervals is provided in each horizontal scanning period. During an active period, a common electrode drive circuit provides a common electrode signal (VCOM) indicating either one of potentials LV1 and LV2 to a common electrode, based on a polarity instruction signal (POL). During the non-active period, the common electrode drive circuit provides a common electrode signal (VCOM) whose potential changes between LV3 and LV4 to the common electrode, based on a reversal timing control signal (CTRL). Here, the amplitude of the common electrode signal (VCOM) for the non-active period is made smaller than the amplitude of the common electrode signal (VCOM) for the active period.

摘要翻译： 公开了一种液晶显示装置，其能够抑制电力消耗的增加而抑制由液晶的交流驱动引起的声音发射。 在每个水平扫描周期中提供了以预定间隔重复公共电极信号（VCOM）的极性反转的非有效周期。 在激活期间，公共电极驱动电路基于极性指示信号（POL）向公共电极提供指示电位LV1和LV2中的任一个的公共电极信号（VCOM）。 在非活动期间，公共电极驱动电路基于反转定时控制信号（CTRL）提供公共电极信号（VCOM），其公共电极LV3和LV4之间的电位变化到公共电极。 这里，使非激活期间的公共电极信号（VCOM）的振幅小于有效期的公共电极信号（VCOM）的振幅。

公开(公告)号：US20100134458A1

公开(公告)日：2010-06-03

申请号：US12452939

申请日：2008-04-24

申请人： Tatsuhiko Suyama

发明人： Tatsuhiko Suyama

IPC分类号： G09G3/36 ,  G06F3/038

CPC分类号： G09G3/3655 ,  G09G2300/0804 ,  G09G2310/0218 ,  G09G2310/0297 ,  G09G2320/0242 ,  G09G2320/0257

摘要： In one embodiment of the present invention, a liquid crystal display device includes a plurality of data signal lines; a plurality of scanning signal lines intersecting orthogonally with the plurality of data signal lines; pixel electrodes each provided at each of intersections of the plurality of data signal lines and the plurality of scanning signal lines; and a counter electrode, the plurality of data signal lines divided into sets each including data signal lines that are provided next to one another so as to respectively correspond to primary colors (R, G, and B) constituting a display color, the data signal lines in each set being connected to one of output signal lines to which data signals corresponding to the primary colors are supplied during a single horizontal scanning period by time division, the data signals supplied to the output signal lines being switched, the counter electrode being subjected to application of a voltage being varied during at least one horizontal scanning period. This provides an active matrix liquid crystal display device that is driven by the SSD method and that is capable of independently adjusting respective luminances of R, G, and B.

摘要翻译： 在本发明的一个实施例中，液晶显示装置包括多条数据信号线; 与所述多个数据信号线正交地交叉的多个扫描信号线; 每个像素电极分别设置在多条数据信号线和多条扫描信号线的交点处; 和对置电极，所述多个数据信号线被分割成各自包括彼此相邻设置的数据信号线，以分别对应于构成显示颜色的原色（R，G和B），所述数据信号 每组中的线连接到输出信号线之一，通过时分在单个水平扫描周期期间提供对应于原色的数据信号的输出信号线，提供给输出信号线的数据信号被切换，对电极受到 以施加在至少一个水平扫描周期期间变化的电压。 这提供了一种由SSD方法驱动的有源矩阵液晶显示装置，能够独立地调节R，G和B的各自亮度。