公开(公告)号：US07128952B2

公开(公告)日：2006-10-31

申请号：US10509759

申请日：2003-05-21

申请人： Nao Murakami ,  Yuuichi Nishikouji ,  Masaki Hayashi ,  Hiroyuki Yoshimi

发明人： Nao Murakami ,  Yuuichi Nishikouji ,  Masaki Hayashi ,  Hiroyuki Yoshimi

IPC分类号： G02F1/3363

CPC分类号： B32B27/08 ,  B32B27/306 ,  B32B2307/42 ,  B32B2457/202 ,  B32B2551/00 ,  G02B5/3083 ,  Y10T428/10 ,  Y10T428/1036

摘要： An optical film including a transparent polymer film (b) and a birefringent layer (a) formed of a polymer and laminated above the transparent polymer film (b) is provided. The birefringent layer (a) and the transparent polymer film (b) satisfy the following formula (1), the birefringent layer (a) satisfies the following formulae (2) and (3), and the polymer forming the birefringent layer (a) has a weight-average molecular weight in the range between 10,000 and 400,000 inclusive. Δn(a)>Δn(b)×10  (1) 1

摘要翻译： 提供了一种包括透明聚合物膜（b）和由聚合物形成并层压在透明聚合物膜（b）上方的双折射层（a）的光学膜。 双折射层（a）和透明聚合物膜（b）满足下式（1），双折射层（a）满足下式（2）和（3），形成双折射层（a）的聚合物 重均分子量在10,000和400,000之间的范围内。 <？in-line-formula description =“在线公式”end =“lead”？> Deltan（a）> Deltan（b）x10（1）<？in-line-formula description =“In-line Formulas” end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 1 <（nx-nz）/（nx-ny）（2） -formulae description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.0005 <= Deltan（a）<= 0.5 3）<？in-line-formula description =“In-line Formulas”end =“tail”？>该光学膜可以防止虹膜的发生，裂缝的发生和延迟的变化的发生。

公开(公告)号：US07054049B2

公开(公告)日：2006-05-30

申请号：US10501959

申请日：2003-01-22

申请人： Nao Murakami ,  Takashi Yamaoka ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

发明人： Nao Murakami ,  Takashi Yamaoka ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

IPC分类号： G02F1/03 ,  G02F1/1335 ,  G02B5/30

CPC分类号： G02F1/133634 ,  G02B5/3083 ,  G02F2201/50 ,  G02F2201/54

摘要： The present invention provides a transparent optical film that has excellent optical characteristics for realizing the uniform retardation distribution and restraining rainbow-colored irregularities. The optical film, which is obtained by laminating a birefringent layer (a) on a transparent film (b), satisfies all the following formulae (I), (II) and (III). Δn(a)>Δn(b)×10  (I) 1

摘要翻译： 本发明提供了一种具有优异的光学特性的透明光学膜，用于实现均匀的延迟分布和抑制彩虹色的不规则。 通过在透明膜（b）上层叠双折射层（a）而获得的光学膜满足下述式（I），（II）和（III）。 <？in-line-formula description =“In-line Formulas”end =“lead”？> Deltan（a）> Deltan（b）x10（I）<？in-line-formula description =“In-line Formulas” end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 1 <（nx-nz）/（nx-ny）（II） -formulae description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.0005 <= Deltan（a）<= 0.5 在上述式（I），（II）和（III）中，Deltan（a）和Deltan（b）表示 分别为双折射层（a）和透明膜（b）的双折射指数。 nx，ny和nz的符号分别表示双折射层（a）中的X轴方向，Y轴方向和Z轴方向的折射率。 X轴对应于在双折射层（a）的平面内具有最大折射率的轴向，Y轴对应于与该平面内的X轴垂直的轴向，Z轴对应于 到垂直于X轴和Y轴的厚度方向。

公开(公告)号：US20050151906A1

公开(公告)日：2005-07-14

申请号：US10512561

申请日：2003-04-24

申请人： Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Nao Murakami ,  Masaki Hayashi

发明人： Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Nao Murakami ,  Masaki Hayashi

IPC分类号： G02B5/30 ,  G02F1/13363 ,  G02F1/1335

CPC分类号： G02B5/3016 ,  G02F1/13363 ,  Y10T428/10 ,  Y10T428/1036

摘要： A method of manufacturing a birefringent film is provided, by which a birefringent film including a liquid crystal compound birefringent layer and another birefringent layer can be manufactured so as to have a reduced thickness in a reduced number of process steps. In the manufacturing method, a non-liquid crystal polymer birefringent layer that has been subjected to an aligning treatment is used as an alignment layer for a liquid crystal compound. According to the manufacturing method, the process step of separately preparing an alignment layer and the need for the additional alignment layer can be eliminated, thereby allowing the total thickness of the birefringent film to be reduced.

摘要翻译： 提供一种制造双折射膜的方法，通过该方法可以制造具有液晶复合双折射层和另一双折射层的双折射膜，从而减少加工步骤的厚度。 在制造方法中，使用已经进行了取向处理的非液晶聚合物双折射层作为液晶化合物的取向层。 根据该制造方法，可以消除单独制备取向层的工艺步骤和对附加取向层的需要，从而可以减小双折射膜的总厚度。

公开(公告)号：US07535531B2

公开(公告)日：2009-05-19

申请号：US10540486

申请日：2004-07-23

申请人： Yuuichi Nishikouji ,  Hiroyuki Yoshimi ,  Nao Murakami

发明人： Yuuichi Nishikouji ,  Hiroyuki Yoshimi ,  Nao Murakami

IPC分类号： G02F1/1335

CPC分类号： G02B5/3083

摘要： The present invention provides a birefringent optical film that allows a liquid crystal display to achieve excellent contrast and a wide viewing angle and does not cause coloring of the liquid crystal display. The birefringent optical film includes at least one birefringent A-layer having a property satisfying nya≧nza>nxa or nza>nya>nza and at least one birefringent B-layer having a property satisfying nxb≧nyb>nzb.

摘要翻译： 本发明提供了一种允许液晶显示器实现优异的对比度和宽视角并且不引起液晶显示器着色的双折射光学膜。 双折射光学膜包括具有满足nya> = nza> nxa或nza> nya> nza性质的至少一个双折射A层和至少一种具有满足nxb> = nyb> nzb的性质的双折射B层。

公开(公告)号：US07494689B2

公开(公告)日：2009-02-24

申请号：US10940622

申请日：2004-09-15

申请人： Masaki Hayashi ,  Nao Murakami ,  Yuuichi Nishikouji ,  Hiroyuki Yoshimi

发明人： Masaki Hayashi ,  Nao Murakami ,  Yuuichi Nishikouji ,  Hiroyuki Yoshimi

IPC分类号： B05D5/06

CPC分类号： G02B5/3083 ,  Y10T428/1036

摘要： It is an object of the present invention to provide a method for manufacturing a birefringent film that can reduce the amount of a remaining solvent in the birefringent film without degrading appearance uniformity or an alignment in its thickness direction. The method of the present invention for manufacturing an optical film includes the steps of: coating a base with a polymer solution obtained by dissolving a polyimide-containing polymer in a solvent so as to form a coating film; and drying the coating film so as to form a birefringent film, in which the drying step includes at least two stages of drying processes. The drying step preferably include two stages of the drying processes, and a temperature in the former stage of the drying process is preferably lower than a temperature in the latter stage of the drying process. If adding a step of providing the birefringent film with an anisotropy of a refractive index in an in-plane direction, a birefringent film with an optical biaxiality can be manufactured.

摘要翻译： 本发明的目的是提供一种制造双折射膜的方法，其可以减少双折射膜中剩余溶剂的量而不降低其外观均匀性或其厚度方向的取向。 本发明的制造光学薄膜的方法包括以下步骤：用通过将含聚酰亚胺的聚合物溶解在溶剂中而获得的聚合物溶液涂覆底部以形成涂膜; 并干燥涂膜以形成双折射膜，其中干燥步骤包括至少两个阶段的干燥过程。 干燥步骤优选包括两个阶段的干燥过程，干燥过程的前一阶段的温度优选低于干燥过程后期的温度。 如果增加在面内方向上提供折射率的各向异性的双折射膜的步骤，则可以制造具有光学双轴性的双折射膜。

公开(公告)号：US07223452B2

公开(公告)日：2007-05-29

申请号：US10551959

申请日：2004-04-28

申请人： Nao Murakami ,  Yuuichi Nishikouji ,  Hiroyuki Yoshimi

发明人： Nao Murakami ,  Yuuichi Nishikouji ,  Hiroyuki Yoshimi

IPC分类号： G02F1/3363

CPC分类号： G02F1/13363 ,  B29C55/026 ,  B29K2995/0032 ,  G02B5/3083 ,  Y10T428/10 ,  Y10T428/1036

摘要： An optical film, which includes a laminate of a base and a birefringent layer, and which is excellent in adhesiveness between the base and the birefringent layer, is provided. The birefringent layer is formed on the base by: coating a material of the birefringent layer on the base so as to form a coating film; stretching/shrinking the base so as to stretch/shrink the coating film; and solidifying the material of the coating film. The material is dispersed or dissolved previously in a solvent and coated in a form of solution, where the solvent used exhibits solubility with respect to the base, and in the coating step, the solvent is infiltrated into a part of the interior of the base, thereby obtaining an optical film with excellent adhesiveness between the base and the birefringent layer.

摘要翻译： 提供了包括基底和双折射层的层压体并且基底和双折射层之间的粘合性优异的光学膜。 双折射层通过以下步骤形成在基底上：在基底上涂覆双折射层的材料以形成涂膜; 拉伸/收缩基底以拉伸/收缩涂膜; 并固化涂膜的材料。 该材料预先分散或溶解在溶剂中并以溶液形式涂覆，其中使用的溶剂表现出相对于碱的溶解性，并且在涂布步骤中，溶剂渗透到基底内部的一部分中， 从而获得在基底和双折射层之间具有优异粘附性的光学膜。

公开(公告)号：US20060055853A1

公开(公告)日：2006-03-16

申请号：US10522380

申请日：2003-07-29

申请人： Nao Murakami ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

发明人： Nao Murakami ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

IPC分类号： G02F1/1335

CPC分类号： G02B5/3016 ,  G02F1/133528

摘要： The present invention relates to an optical film that is excellent in optical properties and can be produced at low cost. In the optical film formed by laminating a transparent polymer film layer and a birefringent layer of a non-liquid crystalline polymer, the birefringent layer satisfies a condition represented by nx≧ny>nz and the in-plane retardation of the transparent polymer film layer is 50 nm or less. In the above formula, nx, ny and nz are the refraction indices in the X-, Y- and Z-axes directions of the birefringent layer, respectively. The X-axis direction is the axial direction in which the refraction index shows a maximum value in the in-plane direction of the birefringent layer, the Y-axis direction is the axial direction perpendicular to the X-axis direction in the plane, and the Z-axis direction is the thickness direction perpendicular to the X- and Y-axes directions.

摘要翻译： 本发明涉及光学性能优异且可以低成本制造的光学膜。 在通过层叠透明聚合物膜层和非液晶聚合物的双折射层而形成的光学膜中，双折射层满足由nx> = ny> nz表示的条件，并且透明聚合物膜层的面内相位差 为50nm以下。 在上述公式中，nx，ny和nz分别是双折射层的X，Y和Z轴方向上的折射率。 X轴方向是折射率在双折射层的面内方向上呈现最大值的轴向，Y轴方向为与该平面中的X轴方向垂直的轴向， Z轴方向是与X轴方向和Y轴方向垂直的厚度方向。

公开(公告)号：US20060176427A1

公开(公告)日：2006-08-10

申请号：US10546874

申请日：2004-08-26

申请人： Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Nao Murakami

发明人： Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Nao Murakami

IPC分类号： G02F1/1335

CPC分类号： G02B5/3083 ,  G02F1/13363

摘要： The present invention provides a composite birefringent member including a first birefringent layer and a second birefringent layer. The second birefringent layer is formed on at least one surface of the first birefringent layer. In the wavelength range from 400 to 800 nm, a value of Δndx/Δnd550 and a value of Rthx/Rth550 of the composite birefringent member as a whole are different from each other. The composite birefringent member satisfies a requirement that the second birefringent layer is formed of a polymer such as polyamide and/or a requirement that Δnd and Rth of the composite birefringent member satisfy formulae (I) and (II) below. As a result, the composite birefringent member allows a liquid crystal display to achieve a wide viewing angle, compensates birefringence of a liquid crystal cell, and does not cause display coloring of the liquid crystal display. Δnd400/Δnd550 1   (II)

摘要翻译： 本发明提供了包括第一双折射层和第二双折射层的复合双折射元件。 第二双折射层形成在第一双折射层的至少一个表面上。 在400至800nm的波长范围内，Deltand / Deltand＆lt; 550＆gt;的值和Rth×x / Rth＆lt; 550复合双折射元件整体上彼此不同。 复合双折射元件满足第二双折射层由聚酰胺等聚合物形成的要求，和/或复合双折射构件的Deltand和Rth满足下式（I）和（II）的要求。 结果，复合双折射构件允许液晶显示器实现宽视角，补偿液晶单元的双折射，并且不会引起液晶显示器的显示着色。 <？in-line-formula description =“In-line Formulas”end =“lead”？> Deltand <400> <1（I） line-formula description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> Rth Rth＆lt; 1＆gt; 1（II）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20050231839A1

公开(公告)日：2005-10-20

申请号：US10509759

申请日：2003-05-21

申请人： Nao Murakami ,  Yuuichi Nishikouji ,  Masaki Hayashi ,  Hiroyuki Yoshimi

发明人： Nao Murakami ,  Yuuichi Nishikouji ,  Masaki Hayashi ,  Hiroyuki Yoshimi

IPC分类号： B32B27/08 ,  G02B5/30 ,  G02B5/08

CPC分类号： B32B27/08 ,  B32B27/306 ,  B32B2307/42 ,  B32B2457/202 ,  B32B2551/00 ,  G02B5/3083 ,  Y10T428/10 ,  Y10T428/1036

摘要： An optical film including a transparent polymer film (b) and a birefringent layer (a) formed of a polymer and laminated above the transparent polymer film (b) is provided. The birefringent layer (a) and the transparent polymer film (b) satisfy the following formula (1), the birefringent layer (a) satisfies the following formulae (2) and (3), and the polymer forming the birefringent layer (a) has a weight-average molecular weight in the range between 10,000 and 400,000 inclusive. Δn(a)>Δn(b)×10  (1) 1

摘要翻译： 提供了一种包括透明聚合物膜（b）和由聚合物形成并层压在透明聚合物膜（b）上方的双折射层（a）的光学膜。 双折射层（a）和透明聚合物膜（b）满足下式（1），双折射层（a）满足下式（2）和（3），形成双折射层（a）的聚合物 重均分子量在10,000和400,000之间的范围内。 <？in-line-formula description =“在线公式”end =“lead”？> Deltan（a）> Deltan（b）x10（1）<？in-line-formula description =“In-line Formulas” end =“tail”？> <？in-line-formula description =“In-line Formulas”end =“lead”？> 1 <（nx-nz）/（nx-ny）（2） -formulae description =“In-line Formulas”end =“tail”？> <？in-line-formula description =“In-line formula”end =“lead”？> 0.0005 <= Deltan（a）<= 0.5 3）<？in-line-formula description =“In-line Formulas”end =“tail”？>该光学膜可以防止虹膜的发生，裂缝的发生和延迟的变化的发生。

公开(公告)号：US07428029B2

公开(公告)日：2008-09-23

申请号：US10522380

申请日：2003-07-29

申请人： Nao Murakami ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

发明人： Nao Murakami ,  Hiroyuki Yoshimi ,  Yuuichi Nishikouji ,  Masaki Hayashi

IPC分类号： G02F1/1335

CPC分类号： G02B5/3016 ,  G02F1/133528

摘要： The present invention relates to an optical film that is excellent in optical properties and can be produced at low cost. In the optical film formed by laminating a transparent polymer film layer and a birefringent layer of a non-liquid crystalline polymer, the birefringent layer satisfies a condition represented by nx≧ny>nz and the in-plane retardation of the transparent polymer film layer is 50 nm or less. In the above formula, nx, ny and nz are the refraction indices in the X-, Y- and Z-axes directions of the birefringent layer, respectively. The X-axis direction is the axial direction in which the refraction index shows a maximum value in the in-plane direction of the birefringent layer, the Y-axis direction is the axial direction perpendicular to the X-axis direction in the plane, and the Z-axis direction is the thickness direction perpendicular to the X- and Y-axes directions.

摘要翻译： 本发明涉及光学性能优异且可以低成本制造的光学膜。 在通过层叠透明聚合物膜层和非液晶聚合物的双折射层而形成的光学膜中，双折射层满足由nx> = ny> nz表示的条件，并且透明聚合物膜层的面内相位差 为50nm以下。 在上述公式中，nx，ny和nz分别是双折射层的X，Y和Z轴方向上的折射率。 X轴方向是折射率在双折射层的面内方向上呈现最大值的轴向，Y轴方向为与该平面中的X轴方向垂直的轴向， Z轴方向是与X轴方向和Y轴方向垂直的厚度方向。