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1. 发明授权

US07038648B2 Method and a device for driving a liquid crystal display, and a liquid crystal display apparatus 失效
公开(公告)号：US07038648B2
公开(公告)日：2006-05-02
申请号：US10304887
申请日：2002-11-26
申请人： Eiji Yamakawa , Naoki Masazumi
发明人： Eiji Yamakawa , Naoki Masazumi
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2300/0486 , G09G2310/065
摘要： Disclosed herewith is a matrix driving method of liquid crystal which exhibits a cholesteric phase. In the method, there is a selection pulse application step of applying pulses to select the final state of the liquid crystal, and between the selection pulse application step of a scanning line and the selection pulse application step of the next scanned scanning line, a delay step is inserted. During the delay step, a signal pulse is of 0V or of a pulse voltage for a display of a specified density.

2. 发明申请

US20060012556A1 Liquid crystal display device having a liquid crystal display driven by interlace scanning and/or sequential scanning 失效
标题翻译：具有通过隔行扫描和/或顺序扫描驱动的液晶显示器的液晶显示装置
公开(公告)号：US20060012556A1
公开(公告)日：2006-01-19
申请号：US11200775
申请日：2005-08-10
申请人： Shuji Yoneda , Masaaki Nakai , Eiji Yamakawa , Kiyofumi Hashimoto , Naoki Masazumi , Katsuhiko Asai , Koichi Kohriyama , Keizou Ochi , Takashi Kondo , Hideo Hotomi , Kazuaki Okumura , Makiko Mandai
发明人： Shuji Yoneda , Masaaki Nakai , Eiji Yamakawa , Kiyofumi Hashimoto , Naoki Masazumi , Katsuhiko Asai , Koichi Kohriyama , Keizou Ochi , Takashi Kondo , Hideo Hotomi , Kazuaki Okumura , Makiko Mandai
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2300/023 , G09G2300/0486 , G09G2310/0227 , G09G2310/061
摘要： A display device which has a liquid crystal display which has a plurality liquid crystal pixels arranged in a matrix and which writes an image thereon after resetting the liquid crystal. The method of writing on the liquid crystal display can be selected from driving methods according to interlace scanning in which a frame is divided into a plurality of fields and writing by interlace scanning is performed and driving methods according to sequential scanning in which scanning lines are subjected to writing serially. When high-speed writing is required, for example, when display of a motion picture, display of inputted letters or scroll display is desired, one of the driving methods according to interlace scanning is selected. In interlace scanning, based on the end of a blackout state of a scanning line in a field, selection of a scanning line in the next field for writing is started. Writing on a scanning line comprises a reset step of resetting the liquid crystal, a selection step of selecting the final state of the liquid crystal, an evolution step of stabling the liquid crystal into the selected state, and one of the length of the reset step and the total length of the selection step and the evolution step is n times (n: natural number) the other. For example, when the length of the reset step is n times the total length of the selection step and the evolution step and when a frame is divided into m fields (m: natural number larger than n) for interlace scanning, there is a moment when, in serial m scanning lines, n scanning lines of them are in the reset step, one of them is in the selection step or in the evolution step, and the other m-n-l scanning lines are in a display step.
摘要翻译：一种显示装置，具有液晶显示器，该液晶显示器具有排列成矩阵状的多个液晶像素，并且在复位液晶之后将图像写入其上。在液晶显示器上写入的方法可以根据隔行扫描的驱动方法选择，其中帧被划分为多个场并且通过隔行扫描进行写入以及根据扫描线所受的顺序扫描的驱动方法连续写作当需要高速写入时，例如，当需要显示动态图像，显示输入的字母或滚动显示时，选择根据隔行扫描的驱动方法之一。在隔行扫描中，基于场中的扫描线的停电状态的结束，开始在下一个字段中的扫描线的选择。在扫描线上的写入包括复位液晶的复位步骤，选择液晶的最终状态的选择步骤，使液晶稳定到所选状态的演变步骤以及复位步骤的长度之一并且选择步骤和演进步长的总长度为n倍（n：自然数）。例如，当复位步长的长度是选择步长和演化步长的总长度的n倍时，并且当将帧分割成用于隔行扫描的m场（m：大于n的自然数）时，存在一瞬间当在串行m条扫描线中，它们的n条扫描线处于复位步骤中时，它们中的一条处于选择步骤或演进步骤，其它mn1条扫描线处于显示步骤。

3. 发明授权

US06414666B1 Liquid crystal display device and method of driving a liquid crystal display element 有权
标题翻译：液晶显示装置及驱动液晶显示元件的方法
公开(公告)号：US06414666B1
公开(公告)日：2002-07-02
申请号：US09291765
申请日：1999-04-14
申请人： Eiji Yamakawa , Hideaki Ueda , Naoki Masazumi
发明人： Eiji Yamakawa , Hideaki Ueda , Naoki Masazumi
IPC分类号： G09G336
CPC分类号： G09G3/3629 , G09G3/2014 , G09G3/3685 , G09G2300/0486 , G09G2310/027 , G09G2310/06
摘要： A method of driving a liquid crystal display element having a first substrate provided with a scanning electrode, a second substrate provided with a signal electrode and a liquid crystal display layer held between the first and second substrates, the method comprising the steps of: (a) applying a first pulse voltage to the scanning electrode corresponding to a drive target pixel in the liquid crystal display layer for changing the liquid crystal material of the target pixel to a predetermined changed state; (b) applying, subsequent to the step (a), a second pulse voltage to the scanning electrode corresponding to the target pixel; and (c) controlling a pulse width of a third pulse voltage in accordance with a required display tone of the target pixel, and applying the third pulse voltage to the signal electrode corresponding to the target pixel in synchronization with the second pulse voltage for stabilizing the state of the liquid crystal material of the target pixel in a predetermined stabilized state.
摘要翻译：一种驱动具有设置有扫描电极的第一基板和设置有信号电极的第二基板和保持在第一和第二基板之间的液晶显示层的液晶显示元件的方法，所述方法包括以下步骤：（a 对与液晶显示层中的驱动目标像素对应的扫描电极施加第一脉冲电压，将目标像素的液晶材料改变到预定的改变状态;（b）在步骤（a）之后，对应于目标像素的扫描电极的第二脉冲电压; 以及（c）根据目标像素的所需显示色调控制第三脉冲电压的脉冲宽度，并且与第二脉冲电压同步地将第三脉冲电压施加到与目标像素对应的信号电极，以稳定目标像素的液晶材料的状态处于预定的稳定状态。

4. 发明授权

US07218299B2 Liquid crystal display apparatus 失效
标题翻译：液晶显示装置
公开(公告)号：US07218299B2
公开(公告)日：2007-05-15
申请号：US10366762
申请日：2003-02-14
申请人： Eiji Yamakawa , Naoki Masazumi
发明人： Eiji Yamakawa , Naoki Masazumi
IPC分类号： G09G3/36
CPC分类号： G09G3/3622 , G02F1/1347 , G02F1/13718 , G09G3/2014 , G09G3/3614 , G09G3/3696 , G09G2310/0289 , G09G2310/06 , G09G2310/061 , G09G2320/0209 , G09G2330/021
摘要： This invention is directed to a liquid crystal display apparatus which includes a liquid crystal display element, and a driving device for driving the display element by simple matrix driving. The display element includes a liquid crystal layer exhibiting a cholesteric phase, and has scanning electrodes and signal electrodes. The driving device is configured such that a driving voltage of single polarity including a selection signal voltage is applied to the scanning electrodes in each frame, and the polarity of the driving voltage is reversed in every frame. The selection signal voltage is successively applied to each scanning electrode in a scanning period set for the scanning electrode, while a rewriting signal voltage corresponding to each scanning electrode in the selected state is applied to each signal electrode. An application period of the selection signal voltage to the scanning electrode is ½ the scanning period.
摘要翻译：本发明涉及一种液晶显示装置，其包括液晶显示元件和用于通过简单矩阵驱动来驱动显示元件的驱动装置。显示元件包括显示胆甾醇相的液晶层，并具有扫描电极和信号电极。驱动装置被配置为使得包括选择信号电压的单个极性的驱动电压被施加到每个帧中的扫描电极，并且驱动电压的极性在每帧中反转。在对扫描电极设定的扫描期间，对各扫描电极依次施加选择信号电压，同时对每个信号电极施加与选择状态的每个扫描电极对应的重写信号电压。扫描电极的选择信号电压的施加期间为扫描期间的1/2。

5. 发明授权

US07145538B2 Liquid crystal display device and method for driving a liquid crystal display 有权
标题翻译：液晶显示装置及驱动液晶显示器的方法
公开(公告)号：US07145538B2
公开(公告)日：2006-12-05
申请号：US09866287
申请日：2001-05-25
申请人： Eiji Yamakawa , Tsukasa Yagi , Naoki Masazumi
发明人： Eiji Yamakawa , Tsukasa Yagi , Naoki Masazumi
IPC分类号： G09G3/36 , G09G5/00 , C09K19/02
CPC分类号： G09G3/3651 , G09G2300/0486 , G09G2310/061
摘要： A liquid crystal display device which carries out matrix driving of a liquid crystal layer by applying AC pulses to the liquid crystal layer through a plurality of scan electrodes and a plurality of data electrodes which face and cross each other. A method of driving such a liquid crystal display comprises a reset step of applying a reset pulse to liquid crystal to reset the liquid crystal to an initial state, a selection step of applying a selection pulse to the liquid crystal to select a final state of the liquid crystal, an evolution step of applying an evolution pulse to the liquid crystal to cause the liquid crystal to evolve to the selected final state. The reset pulse and the evolution pulse have alternating cycles which are longer than that of the selection pulse, and the adjustment of the alternating cycles of the reset pulse and of the evolution pulse are made by changing the pulse waveform applied to each of the scan electrodes.
摘要翻译：一种液晶显示装置，其通过多个扫描电极和相互交叉的多个数据电极向液晶层施加AC脉冲，从而进行液晶层的矩阵驱动。驱动这种液晶显示器的方法包括：将液晶复位脉冲施加到初始状态的复位步骤;向液晶施加选择脉冲以选择最终状态的选择步骤; 液晶，是向液晶施加进化脉冲以使液晶演化至所选择的最终状态的演化步骤。复位脉冲和演化脉冲具有比选择脉冲更长的交替周期，并且通过改变施加到每个扫描电极的脉冲波形来进行复位脉冲和演化脉冲的交替周期的调整。

6. 发明授权

US06954195B2 Liquid crystal display device having a liquid crystal display driven by interlace scanning and/or sequential scanning 失效
标题翻译：具有通过隔行扫描和/或顺序扫描驱动的液晶显示器的液晶显示装置
公开(公告)号：US06954195B2
公开(公告)日：2005-10-11
申请号：US09795938
申请日：2001-02-28
申请人： Shuji Yoneda , Masaaki Nakai , Eiji Yamakawa , Kiyofumi Hashimoto , Naoki Masazumi , Katsuhiko Asai , Koichi Kohriyama , Keizou Ochi , Takashi Kondo , Hideo Hotomi , Kazuaki Okumura , Makiko Mandai
发明人： Shuji Yoneda , Masaaki Nakai , Eiji Yamakawa , Kiyofumi Hashimoto , Naoki Masazumi , Katsuhiko Asai , Koichi Kohriyama , Keizou Ochi , Takashi Kondo , Hideo Hotomi , Kazuaki Okumura , Makiko Mandai
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G09G2300/023 , G09G2300/0486 , G09G2310/0227 , G09G2310/061
摘要： A display device which has a liquid crystal display which has a plurality liquid crystal pixels arranged in a matrix and which writes an image thereon after resetting the liquid crystal. The method of writing on the liquid crystal display can be selected from driving methods according to interlace scanning in which a frame is divided into a plurality of fields and writing by interlace scanning is performed and driving methods according to sequential scanning in which scanning lines are subjected to writing serially. When high-speed writing is required, for example, when display of a motion picture, display of inputted letters or scroll display is desired, one of the driving methods according to interlace scanning is selected. In interlace scanning, based on the end of a blackout state of a scanning line in a field, selection of a scanning line in the next field for writing is started. Writing on a scanning line comprises a reset step of resetting the liquid crystal, a selection step of selecting the final state of the liquid crystal, an evolution step of stabling the liquid crystal into the selected state, and one of the length of the reset step and the total length of the selection step and the evolution step is n times (n: natural number) the other. For example, when the length of the reset step is n times the total length of the selection step and the evolution step and when a frame is divided into m fields (m: natural number larger than n) for interlace scanning, there is a moment when, in serial m scanning lines, n scanning lines of them are in the reset step, one of them is in the selection step or in the evolution step, and the other m−n−1 scanning lines are in a display step.
摘要翻译：一种显示装置，具有液晶显示器，该液晶显示器具有排列成矩阵状的多个液晶像素，并且在复位液晶之后将图像写入其上。在液晶显示器上写入的方法可以根据隔行扫描的驱动方法选择，其中帧被划分为多个场并且通过隔行扫描进行写入以及根据扫描线所受的顺序扫描的驱动方法连续写作当需要高速写入时，例如，当需要显示运动图像，显示输入的字母或滚动显示时，选择根据隔行扫描的驱动方法之一。在隔行扫描中，基于场中的扫描线的停电状态的结束，开始在下一个字段中的扫描线的选择。在扫描线上的写入包括复位液晶的复位步骤，选择液晶的最终状态的选择步骤，使液晶稳定到所选状态的演变步骤以及复位步骤的长度之一并且选择步骤和演进步长的总长度为n倍（n：自然数）。例如，当复位步长的长度是选择步长和演化步长的总长度的n倍时，并且当将帧分割成用于隔行扫描的m场（m：大于n的自然数）时，存在一瞬间当在串行m条扫描线中，它们的n条扫描线处于复位步骤时，其中一条扫描线处于选择步骤或演进步骤，其他mn-1条扫描线处于显示步骤。

7. 发明授权

US06927765B1 Liquid crystal display device and driving method thereof 失效
标题翻译：液晶显示装置及其驱动方法
公开(公告)号：US06927765B1
公开(公告)日：2005-08-09
申请号：US09438885
申请日：1999-11-12
申请人： Naoki Masazumi , Eiji Yamakawa , Hideo Hotomi
发明人： Naoki Masazumi , Eiji Yamakawa , Hideo Hotomi
IPC分类号： G09G3/36
CPC分类号： G09G3/36 , G09G3/3622 , G09G3/3648
摘要： A display device which has a liquid crystal display having a liquid crystal material, a driver for driving the liquid crystal display, and a controller for controlling the driver to drive at least a part of the liquid crystal display by selectively using one of a first drive method and a second drive method which are different from each other in operational principle of the liquid crystal material. The pulse voltage to drive at least one pixel of the liquid crystal display can be selectively set to any one of a plurality of kinds. The data pulse voltage applied to a data electrode can be selectively set to any one of a plurality of kinds to drive at least one pixel of the liquid crystal.
摘要翻译：一种具有液晶显示器的液晶显示器的显示装置，用于驱动液晶显示器的驱动器，以及控制器，用于通过选择性地使用第一驱动器中的一个驱动器来控制驱动器的至少一部分液晶显示器方法和第二驱动方法，其在液晶材料的工作原理上彼此不同。用于驱动液晶显示器的至少一个像素的脉冲电压可以选择性地设置为多种类型中的任何一种。施加到数据电极的数据脉冲电压可以选择性地设置为多种类型中的任一种，以驱动液晶的至少一个像素。

8. 发明授权

US06888522B1 Information display apparatus 失效
标题翻译：信息显示装置
公开(公告)号：US06888522B1
公开(公告)日：2005-05-03
申请号：US09537773
申请日：2000-03-29
申请人： Yoshifumi Shibata , Kiyofumi Hashimoto , Eiji Yamakawa , Hideo Hotomi , Naoki Masazumi , Koichi Kohriyama
发明人： Yoshifumi Shibata , Kiyofumi Hashimoto , Eiji Yamakawa , Hideo Hotomi , Naoki Masazumi , Koichi Kohriyama
IPC分类号： G09G3/36
CPC分类号： G09G3/3629 , G06F3/1423 , G09G2300/023 , G09G2300/0486 , G09G2310/0267 , G09G2310/0275 , G09G2310/04 , G09G2310/061 , G09G2310/065
摘要： An information display apparatus which has a liquid crystal display which uses chiral nematic liquid crystal with a memory effect and can be driven by a matrix driving method. The screen of the display is divided along a scanning line into a still picture display area and a motion picture display area. The information display apparatus may have a first display and a second display on one screen. The first display is a reflective type liquid crystal display with a memory effect, which has an advantage of saving energy, and is used exclusively to display a still picture. The second display is a liquid crystal display which requires only a short time for writing. Information to be written in a short time, such as inputted information, is displayed on the second display.
摘要翻译：一种具有液晶显示器的信息显示装置，其使用具有记忆效应的手征向列型液晶，并且可以通过矩阵驱动方法驱动。显示器的屏幕沿着扫描线被分割成静止图像显示区域和运动图像显示区域。信息显示装置可以在一个屏幕上具有第一显示和第二显示。第一显示器是具有记忆效果的反射型液晶显示器，其具有节能的优点，并且专门用于显示静止图像。第二显示器是仅需要很短的写入时间的液晶显示器。要在短时间内写入的信息（如输入信息）显示在第二显示器上。

9. 发明授权

US06697039B1 Information displaying apparatus 有权
标题翻译：信息显示装置
公开(公告)号：US06697039B1
公开(公告)日：2004-02-24
申请号：US09510847
申请日：2000-02-23
申请人： Eiji Yamakawa , Koichi Kohriyama , Hideo Hotomi , Naoki Masazumi
发明人： Eiji Yamakawa , Koichi Kohriyama , Hideo Hotomi , Naoki Masazumi
IPC分类号： G09G500
CPC分类号： G02F1/1347 , G02F1/133 , G02F1/133305 , G02F2001/13478 , Y10S345/905
摘要： The disclosed herein is an information display apparatus having first and second liquid crystal displays on a common support plate. Each of the liquid crystal displays includes a plurality of pixels defined by a plurality of scanning electrodes and a plurality of signals electrodes. The scanning electrodes of the first liquid crystal display are respectively connected to the scanning electrodes of the second liquid crystal display so that both of the liquid crystal displays are commonly and simultaneously scanned by a scanning driver commonly provided to the liquid crystal display. The support plate is provided with a folding area between the first and second liquid crystal displays whereby the information display apparatus is capable of carrying with folding and of using with opening just like a conventional book.
摘要翻译：这里公开的是在公共支撑板上具有第一和第二液晶显示器的信息显示装置。每个液晶显示器包括由多个扫描电极和多个信号电极限定的多个像素。第一液晶显示器的扫描电极分别连接到第二液晶显示器的扫描电极，使得两个液晶显示器被共同地提供给液晶显示器的扫描驱动器共同同时扫描。支撑板在第一和第二液晶显示器之间设置有折叠区域，由此信息显示装置能像传统书籍一样携带折叠和使用开口。

10. 发明授权

US07019737B1 Liquid crystal display device, portable electronic device and driving method thereof 失效
标题翻译：液晶显示装置，便携式电子装置及其驱动方法
公开(公告)号：US07019737B1
公开(公告)日：2006-03-28
申请号：US09522958
申请日：2000-03-10
申请人： Katsuhiko Asai , Hiroshi Ootsuka , Kiyofumi Hashimoto , Eiji Yamakawa , Hideo Hotomi
发明人： Katsuhiko Asai , Hiroshi Ootsuka , Kiyofumi Hashimoto , Eiji Yamakawa , Hideo Hotomi
IPC分类号： G09G5/00
CPC分类号： G09G3/3629 , G09G2330/021
摘要： A display device which is provided with a liquid crystal display which uses reflective type liquid crystal with a memory effect. This display device is used, for example, as a sub display of a personal computer. The liquid crystal display keeps displaying an image after supply of electric power thereto is stopped. When a specified time has passed since completion of writing, supply of electric power at least to a driving section of the liquid crystal display is stopped.
摘要翻译：具有使用具有记忆效果的反射型液晶的液晶显示器的显示装置。该显示装置例如用作个人计算机的副显示器。在停止供给电力之后，液晶显示器继续显示图像。当从写入完成起经过指定时间时，停止至少向液晶显示器的驱动部分供电。

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