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    • 2. 发明申请
    • PRODUCING METHOD FOR LENGTHWISE OPTICAL LAMINATE AND LIQUID CRYSTAL PANEL
    • 生产长寿命光学层压板和液晶板的方法
    • US20100073608A1
    • 2010-03-25
    • US12523213
    • 2009-01-16
    • Kazunori FutamuraJunichi NagaseHiroyuki YoshimiMasaki Hayashi
    • Kazunori FutamuraJunichi NagaseHiroyuki YoshimiMasaki Hayashi
    • G02F1/1335B29D7/01
    • G02F1/133528G02B5/3016G02B5/3083G02F1/133305G02F1/133634G02F2202/28
    • The object of the present invention is to provide a producing method for a lengthwise optical laminate exhibiting high contrast ratio and adaptable to a large-sized display.The present invention provides a producing method for a lengthwise optical laminate, which comprises a step 1 of coating and drying a coating solution comprising a birefringent material and a solvent on a surface of a lengthwise base material to form a birefringent film such that a birefringence index (Δnxz[590]) in the thickness direction at a wavelength of 590 nm is 0.02 or more, and produce a lengthwise sheet (A) comprising the base material and the birefringent film; a step 2 of drawing a lengthwise film of a hydrophilic polymer containing a dichroic material so that a draw ratio is from 3 times to 5 times based on the original length and a neck-in ratio is 55% or less to produce a lengthwise polarizer (B); and a step 3 of laminating the lengthwise sheet (A) obtained in the step 1 on one plane of the lengthwise polarizer (B) obtained in the step 2 to produce the lengthwise optical laminate.
    • 本发明的目的是提供一种显示高对比度并适应于大尺寸显示器的纵向光学层叠材料的制造方法。 本发明提供一种纵向光学层叠体的制造方法,该方法包括在纵向基材的表面上涂布并干燥包含双折射材料和溶剂的涂布溶液以形成双折射膜的步骤1,以使双折射率 (&Dgr; nxz [590])在波长590nm处的厚度方向为0.02以上,并且制造包括基材和双折射膜的纵向片材(A) 绘制含有二色性材料的亲水性聚合物的纵向膜的步骤2,使得基于原始长度的拉伸比为3倍至5倍,并且收缩率为55%以下以产生纵向偏振片( B); 以及将在步骤1中获得的纵向片材(A)层叠在步骤2中获得的纵向偏振片(B)的一个平面上以制造纵向光学层压体的步骤3。
    • 3. 发明授权
    • Optical film
    • 光学胶片
    • US07128952B2
    • 2006-10-31
    • US10509759
    • 2003-05-21
    • Nao MurakamiYuuichi NishikoujiMasaki HayashiHiroyuki Yoshimi
    • Nao MurakamiYuuichi NishikoujiMasaki HayashiHiroyuki Yoshimi
    • G02F1/3363
    • B32B27/08B32B27/306B32B2307/42B32B2457/202B32B2551/00G02B5/3083Y10T428/10Y10T428/1036
    • 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
    • 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。
    • 6. 发明授权
    • Liquid crystal panel and liquid crystal display
    • 液晶面板和液晶显示屏
    • US08174646B2
    • 2012-05-08
    • US12440483
    • 2007-10-16
    • Kazunori FutamuraJunichi NagaseHiroyuki YoshimiMasaki Hayashi
    • Kazunori FutamuraJunichi NagaseHiroyuki YoshimiMasaki Hayashi
    • G02F1/1335
    • G02B5/3033G02F1/133528G02F1/13363
    • A liquid crystal panel of the present invention comprise a liquid crystal cell, a first polarizer arranged on one of both sides of the liquid crystal cell, and a second polarizer arranged on the other side of the liquid crystal cell, wherein at least one of the first and the second polarizers is dyed with a dichroic material, and the dichroic ratio thereof is from 40 to 100. At least one of the polarizers preferably has a polarization degree of 99% or more and a single transmittance of 35% to 45%. Further, at least one of the polarizers preferably exhibits the following birefringence: Δnxy is from 0.015 to 0.030.The liquid crystal panel of the present invention has the above polarizers, therefore the liquid crystal panel attains high contrast ratio in oblique directions and excellent display characteristics.
    • 本发明的液晶面板包括液晶单元,布置在液晶单元的两侧之一的第一偏振器和布置在液晶单元的另一侧的第二偏振器,其中至少一个 第一和第二偏振器用二向色材料染色,其二色性比为40至100.偏振片中的至少一个偏振度优选为99%以上,单透射率为35%〜45%。 此外,偏振器中的至少一个优选显示以下双折射:&Dgr; nxy为0.015〜0.030。 本发明的液晶面板具有上述偏振片,因此液晶面板在倾斜方向上获得高对比度并具有优异的显示特性。
    • 7. 发明授权
    • Method for manufacturing a birefringent film
    • 双折射膜的制造方法
    • US07494689B2
    • 2009-02-24
    • US10940622
    • 2004-09-15
    • Masaki HayashiNao MurakamiYuuichi NishikoujiHiroyuki Yoshimi
    • Masaki HayashiNao MurakamiYuuichi NishikoujiHiroyuki Yoshimi
    • B05D5/06
    • G02B5/3083Y10T428/1036
    • 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.
    • 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。
    • 9. 发明申请
    • Optical film and its manufacturing method
    • 光学薄膜及其制造方法
    • US20060055853A1
    • 2006-03-16
    • US10522380
    • 2003-07-29
    • Nao MurakamiHiroyuki YoshimiYuuichi NishikoujiMasaki Hayashi
    • Nao MurakamiHiroyuki YoshimiYuuichi NishikoujiMasaki Hayashi
    • G02F1/1335
    • G02B5/3016G02F1/133528
    • 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.
    • 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。