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1. 发明授权

US5093741A Liquid crystal display device 失效
公开(公告)号：US5093741A
公开(公告)日：1992-03-03
申请号：US592462
申请日：1990-10-05
申请人： Kiyoshi Shohara , Hoko Hirai , Yoshihiro Kinoshita , Hitoshi Hatoh , Shoichi Matsumoto
发明人： Kiyoshi Shohara , Hoko Hirai , Yoshihiro Kinoshita , Hitoshi Hatoh , Shoichi Matsumoto
IPC分类号： G02F1/133 , G02F1/1337 , G02F1/137 , G02F1/139
CPC分类号： G02F1/1393 , G02F2001/133742 , G02F2001/13712
摘要： A liquid crystal display device has a birefringence control type liquid crystal display unit including a pair of substrates having electrodes on their first major surfaces and arranged with a predetermined distance therebetween such that the electrodes face each other, a liquid crystal material having a negative dielectric anisotropy, the material being disposed between the substrates, liquid-crystal molecules of the liquid crystal material being aligned vertically such that longitudinal axes of said molecules are inclined at a slight pretilt angle in respect of an axis vertical to the substrates when no voltage is applied to the electrodes, a pair of polarizing plates arranged on second major surfaces of the substrates, and a device circuit for driving the liquid crystal device in a multiplex manner. This device is characterized in that the liquid crystal material has a helical pitch in the state wherein the material is not disposed between the substrates, and the relationships of d.ltoreq.p and 50.ltoreq.f.multidot.d.sup.2 /p are satisfied, where d=the distance (.mu.m) between the substrates, p=the helical pitch of liquid crystal material disposed between the substrates, and f=the frame frequency (Hz) in the drive mode of the device.

2. 发明授权

US5682217A Liquid crystal display device in which no sticking phenomenon occurs with high contrast 失效
标题翻译：液晶显示装置，其中不存在高对比度的粘附现象
公开(公告)号：US5682217A
公开(公告)日：1997-10-28
申请号：US390161
申请日：1995-02-17
申请人： Yuzo Hisatake , Takeshi Yamamoto , Hoko Hirai , Hitoshi Hatoh , Yoshihiro Kinoshita
发明人： Yuzo Hisatake , Takeshi Yamamoto , Hoko Hirai , Hitoshi Hatoh , Yoshihiro Kinoshita
IPC分类号： G02F1/1337 , G02F1/137 , G02F1/139
CPC分类号： G02F1/1397 , G02F1/1337 , G02F1/13743 , G02F2001/133761 , G02F2001/13706
摘要： In a liquid crystal display device in which a twisted nematic liquid crystal layer of positive dielectric anisotropy is sandwiched between two substrates fitted with electrodes and liquid crystal molecule orientation films, and in which the angle of intersection of the liquid crystal molecular alignment directions on the surfaces of the two substrates is .theta. (0.degree.
摘要翻译：在具有正介电各向异性的扭曲向列型液晶层夹在配有电极的两个基板和液晶分子取向膜之间的液晶显示装置中，其中液晶分子取向方向的交点在表面两个基板的角度为θ（0°<90°），单元扭曲角为phi，通过两个基板上的倾斜取向确定为使液晶层均匀的扭转取向，液晶分子取向当phi为+ theta时，膜具有+θ+ 180°或+θ-180°的扭曲角ω，当phi为-θ时，其为-θ= 180°或-θ-180°，当a 施加到液晶层的电压小于阈值电压。

3. 发明授权

US5606342A Liquid crystal display system 失效
标题翻译：液晶显示系统
公开(公告)号：US5606342A
公开(公告)日：1997-02-25
申请号：US400014
申请日：1995-03-06
申请人： Masato Shoji , Hoko Hirai , Susumu Kondo , Akio Murayama
发明人： Masato Shoji , Hoko Hirai , Susumu Kondo , Akio Murayama
IPC分类号： G02F1/133 , G09G3/20 , G09G3/36
CPC分类号： G09G3/3622 , G09G2320/0209
摘要： In liquid crystal display system 10 which has a matrix arrangement of scanning electrode group 12 and data electrode group 13 and in which each electrode group is driven by a pulse like waveform, this is a liquid crystal display system in which a lower level region than the pulse wave peak value is formed in at least one of the rising or the falling portions of the pulse wave which drives at least one of the electrode groups.A liquid crystal display system with a uniform display with extremely little display non-uniformity can be obtained.
摘要翻译：在具有扫描电极组12和数据电极组13的矩阵排列的液晶显示系统10中，其中每个电极组由像波形的脉冲驱动，这是一种液晶显示系统，其中比脉冲波峰值形成在驱动至少一个电极组的脉波的上升或下降部分中的至少一个中。可以获得具有非常小的显示不均匀性的均匀显示的液晶显示系统。

4. 发明授权

US07019735B2 Pumping circuit and flat panel display device 有权
公开(公告)号：US07019735B2
公开(公告)日：2006-03-28
申请号：US10619484
申请日：2003-07-16
申请人： Yasushi Sasaki , Masaki Miyatake , Hajime Sato , Takanori Tsunashima , Yasuyuki Hanazawa , Hoko Hirai
发明人： Yasushi Sasaki , Masaki Miyatake , Hajime Sato , Takanori Tsunashima , Yasuyuki Hanazawa , Hoko Hirai
IPC分类号： G09G3/10
CPC分类号： H02M3/073 , G09G3/3696
摘要： In a flat panel display device in which driving circuits and the like are arranged on an array substrate, a technology to realize a compact size and a low cost of an external control circuit is disclosed. At least one pumping circuit included in the external control circuit is arranged on the array substrate, and an output side capacitor connected between an output portion of the pumping circuit and the ground GND and an input side capacitor of a clock input portion are arranged outside the array substrate.

5. 发明授权

US06414668B1 Liquid crystal display device 有权
标题翻译：液晶显示装置
公开(公告)号：US06414668B1
公开(公告)日：2002-07-02
申请号：US09234511
申请日：1999-01-21
申请人： Masao Karube , Kazuo Nakamura , Masaki Miyatake , Hoko Hirai , Akihiko Saitoh , Yoshiro Aoki
发明人： Masao Karube , Kazuo Nakamura , Masaki Miyatake , Hoko Hirai , Akihiko Saitoh , Yoshiro Aoki
IPC分类号： G09G336
CPC分类号： G09G3/3688 , G09G3/2011 , G09G3/3614 , G09G2320/02
摘要： Arrangement of connection points of sampling switches to video bus lines within a signal line drive circuit 200 is improved such that connection points of video buses (SVn1 to SVn6) supplied with positive-polarity video signals relative to a predetermined reference potential and video buses (SVp1 to SVp6) supplied with negative-polarity video signals to analog switches (SWn11 to SWn22 and SWp11 to SWp22) make substantially symmetric patterns in the extending direction of the video buses. Since the sum of lengths of connection wirings belonging to a switch pair and their total resistance value becomes substantially equal in all switch pairs, the effective vales of shift amounts in signal line potentials are substantially flattened. Therefore, here is provided a drive circuit built-in liquid crystal display device realizing a good imaging quality removing noise such as stripe-shaped imaging defects which may occur when video signals are supplied to analog switches through a plurality of video buses.
摘要翻译：改进采样开关到信号线驱动电路200内的视频总线的连接点的布置，使得提供有相对于预定参考电位的正极性视频信号的视频总线（SVn1至SVn6）的连接点和视频总线（SVp1 提供给模拟开关（SWn11〜SWn22，SWp11〜SWp22）的负极性视频信号的SVp6在视频总线的延伸方向上形成大致对称的图形。由于属于开关对的连接布线的长度总和及其总电阻值在所有开关对中变得基本相等，所以信号线电位中的移位量的有效值基本上变平。因此，这里提供了一种内置液晶显示装置的驱动电路，其实现了通过多个视频总线向视频信号提供视频信号时可能出现的诸如条纹成像缺陷之类的成像质量消除噪声。

6. 发明授权

US06617796B2 Pumping circuit and flat panel display device 有权
公开(公告)号：US06617796B2
公开(公告)日：2003-09-09
申请号：US09867463
申请日：2001-05-31
申请人： Yasushi Sasaki , Masaki Miyatake , Hajime Sato , Takanori Tsunashima , Yasuyuki Hanazawa , Hoko Hirai
发明人： Yasushi Sasaki , Masaki Miyatake , Hajime Sato , Takanori Tsunashima , Yasuyuki Hanazawa , Hoko Hirai
IPC分类号： G09G310
CPC分类号： H02M3/073 , G09G3/3696
摘要： In a flat panel display device in which driving circuits and the like are arranged on an array substrate, a technology to realize a compact size and a low cost of an external control circuit is disclosed. At least one pumping circuit included in the external control circuit is arranged on the array substrate, and an output side capacitor connected between an output portion of the pumping circuit and the ground GND and an input side capacitor of a clock input portion are arranged outside the array substrate.

7. 发明授权

US5646643A Liquid crystal display device 失效
公开(公告)号：US5646643A
公开(公告)日：1997-07-08
申请号：US352167
申请日：1994-12-01
申请人： Hoko Hirai , Susumu Kondo
发明人： Hoko Hirai , Susumu Kondo
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/3696 , G09G3/3622 , G09G3/3625 , G09G3/3655 , G09G3/3674 , G09G3/3685 , G09G2300/043 , G09G2320/0209 , G09G2330/02 , G09G3/2011
摘要： A wiring 19 of a device directly detects a voltage from a plurality of scanning electrodes 1, a voltage detecting electrode 701 detects a voltage from a plurality of the scanning electrodes 1. A voltage variation component such as voltage distortion of the detected voltage which adversely affects on an image display is taken out, inverted, and negative fed back to the scanning electrode 1. A negative feedback loop provides the negative feedback of the voltage detected from and fed back to the scanning electrode 1, this therefore suppresses the disadvantageous voltage variation such as a distortion voltage which tends to arise in the scanning electrode 1.

8. 发明授权

US5619221A Liquid crystal display device 失效
标题翻译：液晶显示装置
公开(公告)号：US5619221A
公开(公告)日：1997-04-08
申请号：US352158
申请日：1994-12-01
申请人： Hoko Hirai , Susumu Kondo
发明人： Hoko Hirai , Susumu Kondo
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/3696 , G09G3/3622 , G09G3/3625 , G09G3/3655 , G09G3/3674 , G09G3/3685 , G09G2300/043 , G09G2320/0209 , G09G2330/02 , G09G3/2011
摘要： A wiring 19 of a device directly detects a voltage from a plurality of scanning electrodes 1, a voltage detecting electrode 701 detects a voltage from a plurality of the scanning electrodes 1. A voltage variation component such as voltage distortion of the detected voltage which adversely affects on an image display is taken out, inverted, and negative fed back to the scanning electrode 1. A negative feedback loop provides the negative feedback of the voltage detected from and fed back to the scanning electrode 1, this therefore suppresses the disadvantageous voltage variation such as a distortion voltage which tends to arise in the scanning electrode 1.
摘要翻译：设备的布线19直接检测来自多个扫描电极1的电压，电压检测电极701检测来自多个扫描电极1的电压。电压变化分量如检测电压的电压失真不利地影响在图像显示器被取出，反转和负反馈回到扫描电极1.负反馈环路提供从扫描电极1检测和反馈到扫描电极1的电压的负反馈，因此抑制了不利的电压变化，作为在扫描电极1中容易产生的失真电压。

9. 发明授权

US5874933A Multi-gradation liquid crystal display apparatus with dual display definition modes 失效
标题翻译：具有双重显示定义模式的多级液晶显示设备
公开(公告)号：US5874933A
公开(公告)日：1999-02-23
申请号：US519310
申请日：1995-08-25
申请人： Hoko Hirai , Masaki Miyatake , Kenshi Tsuchiya , Seiichi Sagi
发明人： Hoko Hirai , Masaki Miyatake , Kenshi Tsuchiya , Seiichi Sagi
IPC分类号： G09G3/20 , G09G3/36 , H04N5/70 , G09G5/10 , H04N3/14
CPC分类号： G09G3/3622 , G09G2310/0205 , G09G2340/0428 , G09G3/2007 , G09G3/2018 , G09G3/3644 , G09G3/3696 , H04N5/70
摘要： A multi-gradation liquid crystal display having dual display definition modes that can display both TV pictures and office automation images, both without flicker. Scanning electrodes extend in a first direction. Scanning and non-scanning voltages are selectively applied to the scanning electrodes. Signal electrodes extend in a second direction perpendicular to the first direction. First and second signal voltages are selectively applied to the signal electrodes. A layer of liquid crystal is sandwiched between the scanning and signal electrodes. Mode switching is provided for switching display between a first mode wherein an image is displayed by two-gradation pixels and a second mode wherein an image is displayed by three or more gradation pixels.
摘要翻译：具有双显示清晰度模式的多级别液晶显示器，其可以同时显示电视图像和办公自动化图像，两者都不闪烁。扫描电极沿第一方向延伸。扫描和非扫描电压被选择性地施加到扫描电极。信号电极在垂直于第一方向的第二方向上延伸。第一和第二信号电压被选择性地施加到信号电极。一层液晶夹在扫描电极和信号电极之间。提供了模式切换，用于在其中通过双灰度像素显示图像的第一模式和其中通过三个或更多个渐变像素显示图像的第二模式之间切换显示。

10. 发明授权

US5434599A Liquid crystal display device 失效
标题翻译：液晶显示装置
公开(公告)号：US5434599A
公开(公告)日：1995-07-18
申请号：US60554
申请日：1993-05-13
申请人： Hoko Hirai , Susumu Kondo
发明人： Hoko Hirai , Susumu Kondo
IPC分类号： G09G3/20 , G09G3/36
CPC分类号： G09G3/3696 , G09G3/3622 , G09G3/3625 , G09G3/3655 , G09G3/3674 , G09G3/3685 , G09G2300/043 , G09G2320/0209 , G09G2330/02 , G09G3/2011
摘要： A wiring 19 of a device directly detects a voltage from a plurality of scanning electrodes 1, a voltage detecting electrode 701 detects a voltage from a plurality of the scanning electrodes 1. A voltage variation component such as voltage distortion of the detected voltage which adversely affects on an image display is taken out, inverted, and negative fed back to the scanning electrode 1. A negative feedback loop provides the negative feedback of the voltage detected from and fed back to the scanning electrode 1, this therefore suppresses the disadvantageous voltage variation such as a distortion voltage which tends to arise in the scanning electrode 1.
摘要翻译：设备的布线19直接检测来自多个扫描电极1的电压，电压检测电极701检测来自多个扫描电极1的电压。电压变化分量如检测电压的电压失真不利地影响在图像显示器被取出，反转和负反馈回到扫描电极1.负反馈环路提供从扫描电极1检测和反馈到扫描电极1的电压的负反馈，因此抑制了不利的电压变化，作为在扫描电极1中容易产生的失真电压。

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