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1. 发明申请

US20100225681A1 APPARATUS AND METHOD TO IMPROVE QUALITY OF MOVING IMAGE DISPLAYED ON LIQUID CRYSTAL DISPLAY DEVICE 有权
标题翻译：提高显示在液晶显示装置上的移动图像质量的装置和方法
公开(公告)号：US20100225681A1
公开(公告)日：2010-09-09
申请号：US12782480
申请日：2010-05-18
申请人： Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
发明人： Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
IPC分类号： G09G3/36 , G06F3/038
CPC分类号： G09G3/3648 , G09G3/342 , G09G3/3666 , G09G2310/024 , G09G2310/04 , G09G2310/062 , G09G2310/063 , G09G2320/0233 , G09G2320/0238 , G09G2320/0247 , G09G2320/0261 , G09G2330/021
摘要： A liquid crystal display device includes a panel having pixel electrodes arranged at intersections of a plurality of signal lines via switching elements for transmitting display data and a plurality of scanning lines for transmitting control signals, and a control circuit for controlling the panel. The liquid crystal panel is divided into first pixel regions and second pixel regions adjacent to the first pixel regions. The control circuit carries out impulse driving in which the control signals transmitted to each of the scanning lines are activated two times in one frame period for displaying an image. The control circuit writes the display data in either one of the pixel regions and writes reset data in the other pixel regions when the control signals are activated once of the two times. By writing the reset data in the pixel regions, the display data written in an immediately preceding frame are reset. In consecutive frames, the display data written in the pixel regions are always reset in one frame period. Therefore, blurring in a moving image can be alleviated. Since writing the display data and the reset data is carried out separately in the first pixel regions and in the second pixel regions, flicker is prevented from occurring in a display screen.
摘要翻译：一种液晶显示装置，包括：具有通过用于传送显示数据的开关元件和用于发送控制信号的多条扫描线的多条信号线的交叉处配置的像素电极的面板，以及用于控制面板的控制电路。液晶面板被划分为与第一像素区域相邻的第一像素区域和第二像素区域。控制电路进行脉冲驱动，其中发送到每个扫描线的控制信号在一个帧周期中被激活两次以显示图像。控制电路将显示数据写入任一个像素区域，并且当控制信号两次激活一次时，将复位数据写入其他像素区域。通过在像素区域中写入复位数据，写入前一帧的显示数据被复位。在连续帧中，写入像素区域的显示数据总是在一个帧周期内重置。因此，可以减轻运动图像中的模糊。由于在第一像素区域和第二像素区域中单独执行写入显示数据和复位数据，因此防止在显示屏幕中发生闪烁。

2. 发明申请

US20060001632A1 Control device for display panel and display apparatus having same 有权
标题翻译：用于显示面板的控制装置和具有该控制装置的显示装置
公开(公告)号：US20060001632A1
公开(公告)日：2006-01-05
申请号：US11087945
申请日：2005-03-23
申请人： Koichi Katagawa
发明人： Koichi Katagawa
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/3648 , G09G2320/0252 , G09G2340/16 , G09G2360/126
摘要： A display panel control device comprises a first buffer, to which a current-frame data, is written in synchronization with a sync signal, and from which the written current-frame data is read in synchronization with a fast sync signal faster than the sync signal to be written to a frame memory, and a second buffer, to which the previous-frame data read from the frame memory is written in synchronization with the fast sync signal faster than the sync signal, and from which the written previous-frame data is read in synchronization with the above sync signal, for supply to the above driving data generation unit.
摘要翻译：显示面板控制装置包括与同步信号同步地写入当前帧数据的第一缓冲器，并且与快速同步信号同步读取写入的当前帧数据比同步信号快被写入到帧存储器中，并且第二缓冲器，与快速同步信号同步地写入与帧存储器读取的前一帧数据相比同步信号更快地写入，并且从其写入的前一帧数据是与上述同步信号同步地读取，供给上述驱动数据生成单元。

3. 发明授权

US06894669B2 Display control device of liquid crystal panel and liquid crystal display device 有权
标题翻译：液晶面板显示控制装置及液晶显示装置
公开(公告)号：US06894669B2
公开(公告)日：2005-05-17
申请号：US10260364
申请日：2002-09-30
申请人： Toshiaki Suzuki , Koichi Katagawa , Koshu Yonemura , Toshihiro Kojima , Takashi Yuda
发明人： Toshiaki Suzuki , Koichi Katagawa , Koshu Yonemura , Toshihiro Kojima , Takashi Yuda
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36 , H04N5/66
CPC分类号： G09G3/3685 , G09G3/2022 , G09G2310/06 , G09G2320/0252 , G09G2320/041 , G09G2340/16
摘要： An operational unit determines, for subfield(s) other than a last subfield of a plurality of subfields constituting a single frame period, based on a difference determined by a data comparison unit, exceeded display data for setting the transmittance of each pixel to a value exceeding a target transmittance corresponding to image data supplied anew. The operational unit also determines, for the last subfield of the single frame period, based on the difference determined by the data comparison unit, target display data for setting the transmittance of each pixel to the target transmittance. An overshoot operation or operations are performed within the single frame period, and each pixel is set to the transmittance corresponding to the image data. This makes it possible to avoid trails occurring in moving image display and enhance the appearance of moving image display with no increase in frame rate.
摘要翻译：操作单元基于由数据比较单元确定的差异，确定对于构成单个帧周期的多个子场的最后一个子场以外的子场，超过用于将每个像素的透射率设定为值的显示数据超过对应于重新提供的图像数据的目标透射率。操作单元还基于由数据比较单元确定的差异，确定对于单个帧周期的最后一个子场，用于将每个像素的透射率设定为目标透射率的目标显示数据。在单帧周期内执行过冲操作或操作，并且将每个像素设置为对应于图像数据的透射率。这使得可以避免运动图像显示中发生的轨迹，并且在不增加帧速率的情况下增强运动图像显示的外观。

4. 发明授权

US06680722B1 Display panel driving method, display panel driver circuit, and liquid crystal display device 有权
公开(公告)号：US06680722B1
公开(公告)日：2004-01-20
申请号：US09428324
申请日：1999-10-27
申请人： Katsuyoshi Hiraki , Takae Ito , Toshiaki Suzuki , Seiji Hayashimoto , Masaki Miyahara , Toshimitsu Minemura , Koichi Katagawa , Satoshi Sekido , Yasutake Furukoshi
发明人： Katsuyoshi Hiraki , Takae Ito , Toshiaki Suzuki , Seiji Hayashimoto , Masaki Miyahara , Toshimitsu Minemura , Koichi Katagawa , Satoshi Sekido , Yasutake Furukoshi
IPC分类号： G09G336
CPC分类号： G09G3/3614 , G09G3/2011 , G09G3/3648 , G09G3/3688 , G09G2310/027 , G09G2310/0289 , G09G2320/0247 , G09G2360/16
摘要： Polarity patterns (polarity pattern signal POL) are stored in a ROM in a polarity pattern controlling portion. Then, the polarity pattern is changed according to applications of a liquid crystal display panel. Since the polarity pattern is stored in the ROM, the polarity pattern can be changed without modification of a hardware. Also, two sets of polarity patterns or more are stored in the ROM, and then any one polarity pattern can be output according to the application. In addition, the polarity pattern signal POL and image signals RGB are compared with each other, and then the polarity pattern which is to be read from the ROM is switched according to the result.

5. 发明申请

US20130208024A1 IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE, IMAGE PROCESSING CIRCUIT AND IMAGE DISPLAY UNIT 审中-公开
标题翻译：图像处理方法，图像处理装置，图像处理电路和图像显示单元
公开(公告)号：US20130208024A1
公开(公告)日：2013-08-15
申请号：US13696761
申请日：2011-04-28
申请人： Kyoichiro Oda , Koichi Katagawa , Masayuki Takahashi , Atsushi Ito , Masahiko Nakahama
发明人： Kyoichiro Oda , Koichi Katagawa , Masayuki Takahashi , Atsushi Ito , Masahiko Nakahama
IPC分类号： G09G5/14
CPC分类号： G09G5/14 , G09G3/003 , G09G3/3648 , G09G2320/0261 , G09G2320/0285 , H04N13/341 , H04N13/398
摘要： Provided are an image processing method, an image processing device, an image processing circuit, and an image display unit that allow occurrence of a crosstalk to be reduced. When an image signal Din is input, the image signal Din is converted into an image signal D′in with a narrower dynamic range based on a lookup table (53A) on a dynamic range control section (51). At this time, the dynamic range of the image signal D′in is set up to an extent of avoiding saturation in an overdrive correction. Subsequently, an image signal Dout is generated by performing the overdrive correction for the image signal D′in using the lookup table (53A) on an overdrive control section (52).
摘要翻译：提供了允许减少串扰发生的图像处理方法，图像处理装置，图像处理电路和图像显示单元。当输入图像信号Din时，基于动态范围控制部分（51）上的查找表（53A），将图像信号Din转换为具有较窄动态范围的图像信号D'in。此时，图像信号D'in的动态范围被设定为在过驱动校正中避免饱和的程度。随后，通过在过驱动控制部分（52）上使用查找表（53A）对图像信号D'执行过驱动校正来生成图像信号Dout。

6. 发明申请

US20120001951A1 LIQUID CRYSTAL DISPLAY 审中-公开
标题翻译：液晶显示器
公开(公告)号：US20120001951A1
公开(公告)日：2012-01-05
申请号：US13158740
申请日：2011-06-13
申请人： Koichi KATAGAWA
发明人： Koichi KATAGAWA
IPC分类号： G09G3/36 , G09G5/10
CPC分类号： G09G3/3648 , G09G2300/0439 , G09G2320/0252 , G09G2320/0261 , G09G2340/16
摘要： A liquid crystal display includes: a light source section; a liquid crystal display panel including pixels corresponding to a plurality of colors; an overdrive processing section performing predetermined overdrive processing on an input picture signal; a gain correction section performing a predetermined gain correction on the overdrive-processed picture signal; and a drive section performing a display-drive based on the gain-corrected picture signal. The liquid crystal display panel includes a pair of substrates and liquid crystal cells forming the pixels. A plurality of values corresponding to respective colors of the pixels are provided for cell gaps of the liquid crystal cells. The overdrive processing section performs common overdrive processing for pixels of respective colors, and the gain correction section performs different gain corrections corresponding to respective values of the cell gaps.
摘要翻译：液晶显示器包括：光源部分; 包括对应于多种颜色的像素的液晶显示面板; 过驱动处理部对输入图像信号进行预定的过驱动处理; 对所述过驱动处理的图像信号执行预定增益校正的增益校正部分; 以及驱动部，其基于所述增益校正图像信号进行显示驱动。液晶显示面板包括一对基板和形成像素的液晶单元。为液晶单元的单元间隙提供与像素的各种颜色对应的多个值。过驱动处理部分对各种颜色的像素执行公共的过驱动处理，并且增益校正部分对应于单元格间隙的各个值执行不同的增益校正。

7. 发明申请

US20100225633A1 APPARATUS AND METHOD TO IMPROVE QUALITY OF MOVING IMAGE DISPLAYED ON LIQUID CRYSTAL DISPLAY DEVICE 有权
公开(公告)号：US20100225633A1
公开(公告)日：2010-09-09
申请号：US12782440
申请日：2010-05-18
申请人： Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
发明人： Hidefumi Yoshida , Seiji Tanuma , Takatoshi Mayama , Yuichi Inoue , Toshiaki Suzuki , Kazutaka Hanaoka , Takeshi Gotoh , Tetsuya Kobayashi , Makoto Ohashi , Hisashi Yamaguchi , Katsunori Tanaka , Koichi Katagawa
IPC分类号： G09G3/36 , G06F3/038
CPC分类号： G09G3/3648 , G09G3/342 , G09G3/3666 , G09G2310/024 , G09G2310/04 , G09G2310/062 , G09G2310/063 , G09G2320/0233 , G09G2320/0238 , G09G2320/0247 , G09G2320/0261 , G09G2330/021
摘要： A liquid crystal display device includes a panel having pixel electrodes arranged at intersections of a plurality of signal lines via switching elements for transmitting display data and a plurality of scanning lines for transmitting control signals, and a control circuit for controlling the panel. The liquid crystal panel is divided into first pixel regions and second pixel regions adjacent to the first pixel regions. The control circuit carries out impulse driving in which the control signals transmitted to each of the scanning lines are activated two times in one frame period for displaying an image. The control circuit writes the display data in either one of the pixel regions and writes reset data in the other pixel regions when the control signals are activated once of the two times. By writing the reset data in the pixel regions, the display data written in an immediately preceding frame are reset. In consecutive frames, the display data written in the pixel regions are always reset in one frame period. Therefore, blurring in a moving image can be alleviated. Since writing the display data and the reset data is carried out separately in the first pixel regions and in the second pixel regions, flicker is prevented from occurring in a display screen.

8. 发明授权

US07595780B2 Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：US07595780B2
公开(公告)日：2009-09-29
申请号：US10900961
申请日：2004-07-28
申请人： Koichi Katagawa , Yasutake Furukoshi , Katsuyoshi Hiraki
发明人： Koichi Katagawa , Yasutake Furukoshi , Katsuyoshi Hiraki
IPC分类号： G09G3/36
CPC分类号： G09G3/20 , G09G3/3648 , G09G5/18 , G09G2310/08
摘要： The liquid crystal display device has a liquid crystal panel in which liquid crystal cells are disposed in intersection areas of scanning lines and data lines, respectively. A picture signal and a synchronous signal are supplied via external terminals, respectively. A timing controller generates a driving timing of the scanning lines and a driving timing of the data lines in response to the synchronous signal. Further, the timing controller varies at least one of the driving timing of the scanning lines and the driving timing of the data lines according to a cycle of the synchronous signal in order to keep a writing time of the picture signal supplied to the liquid crystal cells constant. Therefore, it is possible to keep the writing time constant even when the cycle of the synchronous signal varies, which can prevent the deterioration in display quality.
摘要翻译：液晶显示装置具有分别在扫描线和数据线的交叉区域配置液晶单元的液晶面板。分别通过外部端子提供图像信号和同步信号。定时控制器响应于同步信号产生扫描线的驱动定时和数据线的驱动定时。此外，定时控制器根据同步信号的周期来改变扫描线的驱动定时和数据线的驱动定时中的至少一个，以保持提供给液晶单元的图像信号的写入时间不变。因此，即使当同步信号的周期变化时也可以保持写入时间恒定，这可以防止显示质量的劣化。

9. 发明授权

US07592994B2 Liquid crystal display apparatus and reduction of electromagnetic interference 有权
公开(公告)号：US07592994B2
公开(公告)日：2009-09-22
申请号：US10955756
申请日：2004-09-30
申请人： Satoshi Sekido , Takae Ito , Shinpei Nagatani , Hidefumi Yoshida , Takashi Sasabayashi , Koichi Katagawa , Katsuhiko Kishida , Mikio Oshiro , Katsunori Tanaka , Toshimitsu Minemura , Katsuyoshi Hiraki , Yuichi Inoue
发明人： Satoshi Sekido , Takae Ito , Shinpei Nagatani , Hidefumi Yoshida , Takashi Sasabayashi , Koichi Katagawa , Katsuhiko Kishida , Mikio Oshiro , Katsunori Tanaka , Toshimitsu Minemura , Katsuyoshi Hiraki , Yuichi Inoue
IPC分类号： G09G3/36
CPC分类号： G09G3/3611 , G09G3/3685 , G09G2320/0276 , G09G2320/028 , G09G2330/06
摘要： A liquid crystal display apparatus includes a liquid crystal display unit, a plurality of data driving units which provide image data to said liquid crystal display unit, and a control unit which enables said plurality of data driving units to take in the image data simultaneously if the image data to be provided to said data driving units are identical.

10. 发明授权

US07079105B2 Liquid crystal display with pre-writing and method for driving the same 失效
标题翻译：具有预写的液晶显示器及其驱动方法
公开(公告)号：US07079105B2
公开(公告)日：2006-07-18
申请号：US10430834
申请日：2003-05-06
申请人： Koichi Katagawa
发明人： Koichi Katagawa
IPC分类号： G09G3/36
CPC分类号： G09G3/3648 , G09G3/3614 , G09G2310/0251
摘要： A liquid crystal display including a gate driver for outputting a gate signal to gate bus lines connected to gate electrodes of a plurality of thin film transistors; a plurality of data drivers for outputting data to a plurality of data bus lines respectively connected to drain electrodes of the plurality of thin film transistors; and a timing controller having at least one latch pulse supply line which is extracted from the gate driver and is provided substantially in parallel with the gate bus lines for supplying a latch pulse for outputting data to the plurality of data drivers at output timing which is varied depending on the distance from the gate driver.
摘要翻译：一种液晶显示器，包括：栅极驱动器，用于向连接到多个薄膜晶体管的栅电极的栅极总线输出栅极信号; 多个数据驱动器，用于将数据输出到分别连接到多个薄膜晶体管的漏电极的多个数据总线; 以及定时控制器，其具有从栅极驱动器提取的至少一个锁存脉冲供给线，并且与栅极总线大致并行地设置，用于提供用于在变化的输出定时向多个数据驱动器输出数据的锁存脉冲取决于与门驱动器的距离。

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