公开(公告)号：US06557052B1

公开(公告)日：2003-04-29

申请号：US09586042

申请日：2000-06-02

申请人： Yasuhiro Kubo

发明人： Yasuhiro Kubo

IPC分类号： G06F1328

CPC分类号： G06F13/28

摘要： A DMA transfer device has stream inputting means for receiving an encoded first stream; first stream storing means for storing the first stream; a main storage unit which stores the stream of said first stream storing means; first DMA transfer executing means,for executing a first DMA transfer from said first stream storing means to said main storage unit; first DMA transfer controlling means for controlling said first DMA transfer executing means on the basis of an amount of data which are stored in said first stream storing means or a free capacity; a processing unit which produces a second stream from the first stream that is read out from said main storage unit, and which writes the second stream into said main storage unit; second stream storing means for storing the second stream of said main storage unit; second DMA transfer executing means for executing a second DMA transfer from said main storage unit to said second stream storing means; and second DMA transfer controlling means for controlling said second DMA transfer executing means on the basis of an amount of data which are stored in said second stream storing means or a free capacity.

摘要翻译： DMA传送装置具有用于接收编码的第一流的流输入装置;存储第一流的第一流存储装置;存储所述第一流存储装置的流的主存储单元;第一DMA传送执行装置，用于执行第一流 DMA从所述第一流存储装置传送到所述主存储单元;第一DMA传送控制装置，用于根据存储在所述第一流存储装置中的数据量或可用容量来控制所述第一DMA传送执行装置; 处理单元，其从所述第一流产生从所述主存储单元读出的第二流，并将所述第二流写入所述主存储单元;第二流存储装置，用于存储所述主存储单元的第二流;第二DMA 用于执行从所述主存储单元到所述第二流存储装置的第二DMA传送的传送执行装置; 以及第二DMA传送控制装置，用于根据存储在所述第二流存储装置中的数据量或可用容量来控制所述第二DMA传送执行装置。

公开(公告)号：US06395353B2

公开(公告)日：2002-05-28

申请号：US09808019

申请日：2001-03-15

申请人： Motoki Yanai ,  Yasuhiro Kubo ,  Etsuo Nakagawa

发明人： Motoki Yanai ,  Yasuhiro Kubo ,  Etsuo Nakagawa

IPC分类号： C09K1930

CPC分类号： C09K19/42 ,  C09K19/406 ,  Y10T428/10

摘要： The present invention provides a liquid crystal composition comprising the compounds represented by the following formulas (I) and (II) wherein each R1 independently represents an alkyl group having 1-10 carbon atoms or an alkenyl group having 2-10 carbon atoms; each R2 independently represents an alkyl or alkoxy group having 1-10 carbon atoms or an alkenyl group having 2-10 carbon atoms; Z1 and Z2 represent —CH2SiH2—, a single bond or —CH2CH2—, with the proviso that one of Z1 and Z2 represents —CH2SiH2— and the other represents a single bond or —CH2CH2—; A1, A2 and A3 each independently represent a ring including aromatic, alicyclic and heterocyclic groups; m and n are each independently 0 or 1; and Z3 and Z4 each independently represent a single bond, —CH2CH2—, —CF2O— or —OCF2—. The composition has a suitable &Dgr;n, a low viscosity, a largely negative &Dgr;&egr; and a broad nematic liquid crystal phase range while satisfying various properties required for liquid crystal compositions for AM-LCD.

摘要翻译： 本发明提供一种液晶组合物，其含有下述式（I）和（II）表示的化合物，其中，各R1独立地表示碳原子数1〜10的烷基或碳原子数2〜10的烯基。 每个R 2独立地表示具有1-10个碳原子的烷基或烷氧基或具有2-10个碳原子的烯基; Z 1和Z 2表示-CH 2 SiH 2 - ，单键或-CH 2 CH 2 - ，条件是Z 1和Z 2中的一个表示-CH 2 SiH 2 - ，另一个表示单键或-CH 2 CH 2 - ; A1，A2和A3各自独立地表示包括芳族，脂环族和杂环基团的环; m和n各自独立地为0或1; Z 3和Z 4各自独立地表示单键，-CH 2 CH 2 - ， - CF 2 O-或-OCF 2 - 。 该组合物具有适合的DELTAn，低粘度，大量负DELTAepsi和宽向列型液晶相范围，同时满足AM-LCD液晶组合物所需的各种性能。

公开(公告)号：US06344247B1

公开(公告)日：2002-02-05

申请号：US09269287

申请日：1999-03-25

申请人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K1912

CPC分类号： C07C25/18 ,  C07C43/225 ,  C09K19/12 ,  Y10T428/10

摘要： The present invention provides liquid crystalline compounds having a high voltage holding ratio and a low threshold voltage, little variation of these properties depending on temperature change, high &Dgr;n, and good compatibility with other liquid crystal materials particularly under a low temperature; liquid crystal compositions containing these crystalline compounds; and liquid crystal display devices comprising these liquid crystal compositions. The liquid crystalline compounds are terphenyl derivatives represented by general formula (1): wherein R represents a straight or branched alkyl group of 1-20 carbon atoms, and any methylene groups (—CH2—) not adjacent each other in each alkyl group may be replaced by oxygen atoms; X represents halogen atom, —OCF3, —OCF2H, —CF3, —CF2H or —CFH2; Y1, Y2, Y3, Y4, Y5 and Y6 independently represents H or F, but at least two of Y1, Y2, Y3 and Y4 represent F; and any atom constituting these compounds may be substituted by its isotope.

摘要翻译： 本发明提供了具有高电压保持率和低阈值电压的液晶化合物，这些特性根据温度变化几乎没有变化，高DELTAn，以及与其它液晶材料，特别是在低温下的良好相容性; 含有这些结晶化合物的液晶组合物; 以及包含这些液晶组合物的液晶显示装置。 液晶化合物是由通式（1）表示的三联苯衍生物：其中R表示1-20个碳原子的直链或支链烷基，每个烷基中不相邻的任何亚甲基（-CH 2 - ）可以是 被氧原子取代; X表示卤素原子，-OCF 3，-OCF 2 H，-CF 3，-CF 2 H或-CFH 2; Y1，Y2，Y3，Y4，Y5和Y6独立地表示H或F，但Y1，Y2，Y3和Y4中的至少两个表示F; 并且构成这些化合物的任何原子可以被其同位素取代。

公开(公告)号：US06254941B1

公开(公告)日：2001-07-03

申请号：US09269286

申请日：1999-03-25

申请人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

发明人： Tomoyuki Kondou ,  Shuichi Matsui ,  Kazutoshi Miyazawa ,  Hiroyuki Takeuchi ,  Yasuhiro Kubo ,  Fusayuki Takeshita ,  Etsuo Nakagawa

IPC分类号： C09K1912

CPC分类号： C07C17/12 ,  C07C17/263 ,  C07C17/2635 ,  C07C17/361 ,  C07C25/18 ,  C07C43/174 ,  C07C43/225 ,  C09K19/12 ,  C09K19/14 ,  C09K19/20 ,  C09K2019/124 ,  Y10T428/10 ,  C07C25/13

摘要： The present invention provides liquid crystalline compounds having a very high voltage holding ratio, very little variation of these properties depending on temperature, high &Dgr;n, and good compatibility in the other liquid crystal materials particularly under a low temperature, liquid crystal compositions containing these crystalline compounds, and liquid crystal display devices constituted by using the liquid crystal compositions. The liquid crystalline compounds are represented by general formula (1): wherein R represents an alkyl, alkoxy or alkoxyalkyl group of 2-20 carbon atoms, and in each group, any 1-3 hydrogen atoms may be replaced by fluorine atoms; X shows an halogen atom or an alkyl group of 1-20 carbon atoms, any methylene groups (—CH2—) not adjacent each other in the alkyl group may be replaced by oxygen atoms, and any one or more hydrogen atoms in the alkyl group may be replaced by fluorine atoms; Z1, Z2 and Z3, each independently, represents —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2—, —(CH2)3O—, —O(CH2)3— or a covalent bond; Y1-Y16 each independently represent hydrogen atoms or fluorine atoms, but at least two represent fluorine atoms; m represents 0 or 1, and any atom constituting the compound may be replaced by an isotope thereof.

摘要翻译： 本发明提供了具有非常高的电压保持率的液晶化合物，这些性质随温度变化很小，DELTAn高，在其它液晶材料中特别是在低温下具有良好的相容性，含有这些结晶化合物的液晶组合物 ，以及使用液晶组合物构成的液晶显示装置。 液晶化合物由通式（1）表示：其中R表示2-20个碳原子的烷基，烷氧基或烷氧基烷基，并且在每一组中，任何1-3个氢原子可被氟原子取代; X表示卤素原子或1-20个碳原子的烷基，烷基中不相邻的任何亚甲基（-CH 2 - ）可以被氧原子取代，并且烷基中的任何一个或多个氢原子 可以被氟原子取代; Z 2，Z 2和Z 3各自独立地表示 - （CH 2）2 - ， - （CH 2）4 - ， - CH 2 O - ， - OCH 2 - ， - （CH 2）3 O-，-O ; Y1-Y16各自独立地表示氢原子或氟原子，但至少两个表示氟原子; m表示0或1，构成化合物的任何原子可以被其同位素代替。