公开(公告)号：US06327010B1

公开(公告)日：2001-12-04

申请号：US08769517

申请日：1996-12-19

申请人： Bernhard Scheuble ,  Günter Baur ,  Waltraud Fehrenbach ,  Barbara Staudacher

发明人： Bernhard Scheuble ,  Günter Baur ,  Waltraud Fehrenbach ,  Barbara Staudacher

IPC分类号： G02F11335

CPC分类号： G02F1/13363 ,  G02F1/1396 ,  G02F2001/133531

摘要： An electrooptical system contains: (a) a twisted nematic liquid-crystal layer, with an input side and an output side, which is positioned between a first substrate and a second substrate, each of whose inside surface is provided with an electrode coating and an alignment layer thereon, the director of said liquid crystal layer having a parallel edge alignment and a twist angle of 0°≦&bgr;≦1000, (b) at least one compensation layer for compensating the optical path difference of the liquid-crystal layer d·&Dgr;n, and (c) at least one device for linear polarization of light in such an arrangement that light, before entering and after exiting the liquid-crystal layer, passes through a polarization device, I. wherein, in order to achieve high contrast, and/or high brightness, and/or high viewing angle independence of the contrast and/or the color values, the angle &psgr;, which the polarization device on the input side of the liquid crystal layer forms with the director of the liquid-crystal molecules on the surface of the first substrate, satisfies I.A. condition (1) or (2) &psgr;=(&bgr;+90°)/2±10°  (1) &psgr;=&bgr;/2±10°  (2) where a polarization device is present on both the light input side of the liquid crystal layer and the light output side of the liquid crystal layer, and the polarization device on the output side of the liquid crystal layer is rotated by 90°±10° with respect to the polarization device on the input side of the liquid crystal layer, and, optionally, alignment of the polarization devices on the input side and the output side of the liquid crystal layer are interchanged, or satisfies I.B. condition (3) or (4) 30°≦&psgr;≦70° for 0≦&bgr;≦45°  (3) 35°≦&psgr;≦90° for 45≦&bgr;100°  (4), where a polarization device is only present on the input side, II. wherein the compensation layer comprises a material having three optical refractive indices, of which one is less than the other two, and wherein the optical axis corresponding to this lowest refractive index is essentially parallel to the surface of said second substrate or forms an angle of 2°

公开(公告)号：US06398152B1

公开(公告)日：2002-06-04

申请号：US09548656

申请日：2000-04-13

申请人： Mathias Burchert ,  Günter Baur

发明人： Mathias Burchert ,  Günter Baur

IPC分类号： B65H6500

CPC分类号： B65H54/34 ,  B65H2701/31

摘要： A bobbin plate is described which is provided with yarn catching slits, with whose aid a yarn reserve winding is formed on a rotating empty bobbin tube. The bobbin plate comprises a base body as well as a nipping ring which can be pressed onto the base body and which nipping ring is flexible at its front side. The base body as well as the nipping ring are each provided with yarn catching slits in such a way that the caught thread can be nipped between the base body and the nipping ring. The supporting surface, on which the bobbin tube is disposed on the nipping ring, is so designed that a relative motion between the bobbin plate and bobbin tube is prevented.

摘要翻译： 描述了一种设有纱线捕捉狭缝的筒管，其中在旋转的空筒管上形成纱线备用卷绕。 梭芯板包括基体以及可以压在基体上的夹持环，并且该夹持环在其前侧是柔性的。 基体以及夹持环分别设有纱线捕捉狭缝，使得夹紧的线可以夹在基体和夹持环之间。 筒管配置在夹持环上的支撑面被设计成防止了筒管与筒管之间的相对运动。