Optical elements, backlight modules, and liquid crystal display employing the same
    1.
    发明授权
    Optical elements, backlight modules, and liquid crystal display employing the same 有权
    光学元件,背光模块和采用该元件的液晶显示器

    公开(公告)号:US08908130B2

    公开(公告)日:2014-12-09

    申请号:US12610982

    申请日:2009-11-02

    IPC分类号: G02F1/1335 C09K19/02

    CPC分类号: G02F1/133606

    摘要: Optical elements and backlight modules employing the same are provided. The optical element can be a brightness enhancement diffusion complex film, comprising a cholesteric liquid crystal film and a transparent optical film directly disposed on the cholesteric liquid crystal film. Particularly, the whole transparent optical film directly contacts to the cholesteric liquid crystal film, in the absence of an intermediate located between the transparent optical film and the cholesteric liquid crystal film.

    摘要翻译: 提供了使用其的光学元件和背光模块。 光学元件可以是亮度增强扩散复合膜,其包括胆甾醇型液晶膜和直接设置在胆甾醇型液晶膜上的透明光学膜。 特别地,在透明光学膜和胆甾醇型液晶膜之间不存在中间的情况下,整个透明光学膜直接接触胆甾型液晶膜。

    Spontaneous alignment method for manufacturing cholesteric reflective polarizer
    2.
    发明授权
    Spontaneous alignment method for manufacturing cholesteric reflective polarizer 有权
    用于制造胆甾型反射偏振器的自发对准方法

    公开(公告)号:US06721030B2

    公开(公告)日:2004-04-13

    申请号:US10237789

    申请日:2002-09-10

    IPC分类号: G02F113

    摘要: To form a brightness enhancement film of cholesteric liquid crystal, a photopolymerizable liquid crystal is first formed on a first substrate. A second substrate then is formed on the liquid crystal substance to form a sandwich structure. The sandwich structure is subsequently submitted to a lamination process that generates shear stress thereon. Finally, an energetic irradiation including UV irradiation is performed to solidify the layer of liquid crystal into a liquid crystal polymer film. The second substrate then is selectively removed. The above steps are repeated until a desired reflected wavelength range of the liquid crystal film is obtained.

    摘要翻译: 为了形成胆甾醇型液晶的亮度增强膜,首先在第一基板上形成光聚合性液晶。 然后在液晶物质上形成第二基板以形成夹层结构。 夹层结构随后进行到其上产生剪切应力的层压工艺。 最后,进行包含紫外线照射的能量照射,将液晶层固化为液晶聚合物膜。 然后选择性地除去第二衬底。 重复上述步骤直到得到液晶膜的期望的反射波长范围。

    Weak base developable positive photoresist composition containing
quinonediazide compound
    3.
    发明授权
    Weak base developable positive photoresist composition containing quinonediazide compound 失效
    含有醌二叠氮化合物的弱碱显影性正性光致抗蚀剂组合物

    公开(公告)号:US5645970A

    公开(公告)日:1997-07-08

    申请号:US547753

    申请日:1995-10-25

    IPC分类号: C08G8/04 G03F7/023

    CPC分类号: C08G8/04 G03F7/0236

    摘要: A positive photoresist composition is disclosed which comprises a photosensitive compound, a phenolic resin, and an organic solvent. The phenolic resin is prepared from a monomeric composition comprises formaldehyde and a mixture of phenol monomers. The mixture of phenol monomers comprises: (a) no more than 98 mole percent of a mixture of monohydroxy phenols, the mixture of monohydroxy phenols comprises: (I) about 50.about.80 mole percent of meta-methylphenol; (ii) about 10.about.30 mole percent of 2,5-dimethylphenol; and (iii) about 10.about.40 mole percent of 2,3,5-trimethylphenol; and (b) at least 2 mol percent of at least one polyhydroxybenzene which is presented by the following formula: ##STR1## wherein n is an integer of 1 or 2. Preferably, the polyhydroxybenzene is a mixture of trihydroxybenzene and dihydroxybenzene in a molar ratio of about 40 to 60. The photoresist composition can be developed using a weak basic solution which causes images of sharp contrast to be developed; it can also be advantageously used in making color filters for use in color liquid crystal displays in a multiple development process in conjunction with an electrodeposition lithography.

    摘要翻译: 公开了一种正型光致抗蚀剂组合物,其包含光敏化合物,酚醛树脂和有机溶剂。 酚醛树脂由包含甲醛和苯酚单体的混合物的单体组合物制备。 苯酚单体的混合物包括:(a)不超过98摩尔%的单羟基酚的混合物,单羟基酚的混合物包含:(I)约50摩尔%的间甲基苯酚; (ii)约10%(重量)的30摩尔%的2,5-二甲基苯酚; 和(iii)约10%差异的40摩尔%的2,3,5-三甲基苯酚; 和(b)至少2mol%的由下式表示的至少一种多羟基苯:其中n是1或2的整数。优选地,多羟基苯是三羟基苯和二羟基苯的摩尔比的混合物 约40至60.光致抗蚀剂组合物可以使用弱碱性溶液显影,这导致形成鲜明对比度的图像; 在电沉积光刻中,也可以有利地用于在多重显影工艺中制造用于彩色液晶显示器的滤色器。

    Manufacture of color filters by incremental exposure method
    4.
    发明授权
    Manufacture of color filters by incremental exposure method 失效
    通过增量曝光法制造滤色片

    公开(公告)号:US5641595A

    公开(公告)日:1997-06-24

    申请号:US591201

    申请日:1996-01-16

    IPC分类号: G03F7/00 G03F7/20 G03F9/00

    CPC分类号: G03F7/0007 G03F7/2022

    摘要: A method for making color filters containing a color matrix with at least three desired colored layers comprising the steps of: (a) forming a positive energy-accumulable photoresist layer on a transparent electrically conductive substrate; (b) pre-conditioning the energy-accumulable photoresist layer to form at least three regions of different initial levels of exposure energy, from a highest to a lowest; (c) using a developer solution to develop and remove the region of the photoresist layer with the highest level of initial exposure energy to thereby cause a corresponding area of the electrically conductive substrate underlying the photoresist to be uncovered; (d) electrodepositing a photo-curable resin of a desired color and a predetermined exposure energy required for curing onto the uncovered area of the substrate; (e) overall-exposing the photoresist layer to a light source so as to impart an incremental exposure energy to all regions of the photoresist layer; (f) using a developer solution to develop and remove the region of the photoresist layer which has accumulatively attained the full exposure energy in step (e) and uncover a corresponding area on the substrate; (g) electrodepositing a photo-curable resin of another desired color onto the uncovered area of the substrate formed in step (f); and (h) repeating steps (e) through (g) until all the desired colored layers are selectively developed on the substrate. The incremental exposure energy is provided in step (e) such that: (i) it enables a region with a next highest initial exposure energy to attain full exposure energy, and (ii) it equals to or exceeds the exposure energy required for curing the photo-curable resin to thereby, at the same time, cause the photo-curable resin to become hardened.

    摘要翻译: 一种制备包含具有至少三个所需着色层的彩色矩阵的滤色器的方法,包括以下步骤:(a)在透明导电基底上形成正的可蓄积的光致抗蚀剂层; (b)预处理能量可聚合的光致抗蚀剂层,以形成从最高到最低的不同初始曝光能量的至少三个区域; (c)使用显影剂溶液以最高水平的初始曝光能量显影和去除光致抗蚀剂层的区域,从而使得光致抗蚀剂下面的导电基材的相应区域不被覆盖; (d)将所需颜色的光固化树脂和固化所需的预定曝光能量电沉积到基底的未覆盖区域上; (e)将光致抗蚀剂层全部曝光到光源,以便赋予光致抗蚀剂层的所有区域增加的曝光能量; (f)使用显影剂溶液来显影和去除在步骤(e)中累积获得完全曝光能量的光致抗蚀剂层的区域,并且露出基板上相应的区域; (g)将另一所需颜色的光固化树脂电沉积到在步骤(f)中形成的衬底的未覆盖区域上; 和(h)重复步骤(e)至(g),直到所有所需的着色层在衬底上选择性地显影。 在步骤(e)中提供增量曝光能量,使得:(i)它能够使具有下一个最高初始曝光能量的区域获得完全的曝光能量,和(ii)它等于或超过固化所需的曝光能量 光固化树脂,从而同时使光固化树脂变硬。

    Bistable display materials and methods and devices thereof
    5.
    发明授权
    Bistable display materials and methods and devices thereof 有权
    双稳态显示材料及其方法和装置

    公开(公告)号:US08107050B2

    公开(公告)日:2012-01-31

    申请号:US12562391

    申请日:2009-09-18

    IPC分类号: C09K19/02 C09K19/34

    CPC分类号: C09K19/52

    摘要: A display material and method and device thereof are provided. The display material is first formed by evenly mixing appropriate weight ratios of DFLCs, incurable nanoparticles, curable nanoparticles, and a photoinitiator. Next, the evenly mixed mixture is disposed between two parallel conducting transparent substrates, wherein an electrical field is conducted thereto and the DFLCs therein aligned to the direction of the applied electrical field. Concurrently, under the applied electrical field, some curable nanoparticles within the evenly mixed mixture, form short nano chains, initiating the photo initiator. The frame structure of short nano chains stabilize both the clear and scattering states, thereby the bistable characteristic was improved and the contrast ratio was enhanced as applied to bistable displays.

    摘要翻译: 提供了显示材料及其方法和装置。 显示材料首先通过均匀混合适当重量比的DFLC,不可消耗的纳米颗粒,可固化纳米颗粒和光引发剂来形成。 接下来,将均匀混合的混合物设置在两个平行的导电透明基板之间,其中对其进行电场并且其中的DFLC与所施加的电场的方向对齐。 同时,在施加的电场下,在均匀混合的混合物中的一些可固化纳米颗粒形成短的纳米链,引发光引发剂。 短纳米链的框架结构稳定了清晰和散射状态,从而双稳态特性得到改善,对比度提高了,适用于双稳态显示器。

    High transmittance brightness enhanced optical element for LCD by wholly coating process
    6.
    发明授权
    High transmittance brightness enhanced optical element for LCD by wholly coating process 有权
    透光度高的亮度增强了液晶显示器的光学元件

    公开(公告)号:US08023080B2

    公开(公告)日:2011-09-20

    申请号:US12498355

    申请日:2009-07-06

    IPC分类号: G02F1/1335

    摘要: A high transmittance brightness enhanced optical element for backlight modules and liquid crystal display device is disclosed. The brightness enhanced polarizing optical element comprises a reflective polarizer film, a phase retardation film, and a polarization enhancement film. The reflective polarizer film provides a function of selectively reflecting right-handness circularly polarized light or left-handness circularly polarized light and will transmit the other one of them. The one was selectively reflected will be recombined with the light source or the backlight and re-direct toward the reflective polarizer. The portions of the reflective light will be recombined with the fresh light from the light source as above and the processes repeatedly. As a result, almost all of the light transmit the reflective polarizer and in the same circular polarization. The light is then transmitted the phase retardation film and converted to a polarized light with another optical axis.

    摘要翻译: 公开了用于背光模块和液晶显示装置的高透光率亮度增强型光学元件。 亮度增强偏振光学元件包括反射偏振膜,相位延迟膜和偏振增强膜。 反射偏振膜提供选择性地反射右手圆偏振光或左手圆偏振光的功能,并且将透射另一个。 选择性地反射的光将与光源或背光重新组合并重新指向反射型偏振器。 如上所述,反射光的部分将与来自光源的新鲜光重新组合,并重复处理。 结果,几乎所有的光透射反射偏振器并且以相同的圆偏振。 然后将光传输相位延迟膜,并用另一个光轴转换成偏振光。

    High Transmittance Brightness Enhanced Optical Element for LCD by Wholly Coating Process
    7.
    发明申请
    High Transmittance Brightness Enhanced Optical Element for LCD by Wholly Coating Process 有权
    高透光度亮度增强光学元件通过全涂层工艺

    公开(公告)号:US20090284690A1

    公开(公告)日:2009-11-19

    申请号:US12498355

    申请日:2009-07-06

    IPC分类号: G02F1/1347 G02F1/13 G09F13/04

    摘要: A high transmittance brightness enhanced optical element for backlight modules and liquid crystal display device is disclosed. The brightness enhanced polarizing optical element comprises a reflective polarizer film, a phase retardation film, and a polarization enhancement film. The reflective polarizer film provides a function of selectively reflecting right-handness circularly polarized light or left-handness circularly polarized light and will transmit the other one of them. The one was selectively reflected will be recombined with the light source or the backlight and re-direct toward the reflective polarizer. The portions of the reflective light will be recombined with the fresh light from the light source as above and the processes repeatedly. As a result, almost all of the light transmit the reflective polarizer and in the same circular polarization. The light is then transmitted the phase retardation film and converted to a polarized light with another optical axis.

    摘要翻译: 公开了用于背光模块和液晶显示装置的高透光率亮度增强型光学元件。 亮度增强偏振光学元件包括反射偏振膜,相位延迟膜和偏振增强膜。 反射偏振膜提供选择性地反射右手圆偏振光或左手圆偏振光的功能,并且将透射另一个。 选择性地反射的光将与光源或背光重新组合并重新指向反射型偏振器。 如上所述,反射光的部分将与来自光源的新鲜光重新组合,并重复处理。 结果,几乎所有的光透射反射偏振器并且以相同的圆偏振。 然后将光传输相位延迟膜,并用另一个光轴转换成偏振光。

    Reflective diffraction grating for use in display devices
    8.
    发明授权
    Reflective diffraction grating for use in display devices 有权
    用于显示装置的反射衍射光栅

    公开(公告)号:US06351334B1

    公开(公告)日:2002-02-26

    申请号:US09688374

    申请日:2000-10-10

    IPC分类号: G02B518

    摘要: A reflective-type diffraction grating structure for use in color display devices such as liquid crystal displays (LCDs). It contains: (1) a plurality of micro-lenses each having a smooth top surface and a blazed zig-zag-shaped grating surface at the bottom; (2) an optical coating formed below the zig-zag-shaped grating surface; and (3) a reflective member formed below the optical coating. With the cooperative actions of the zig-zag-shaped grating surface, the optical coating layer, and the reflective member, an incident light, when reflected, is separated into repeated sequences of red, green, and blue color components and a black matrix segregating the red, green, and blue color components. A sequence of micro-light valves are placed in the path of the reflected incident light to block the undesired color components. The reflective-type diffraction grating structure dispenses with the need for the various layers of color filters. As a result, it improves the brightness of the image and reduces power consumption, as well as reducing the manufacturing cost.

    摘要翻译: 用于液晶显示器(LCD)等彩色显示装置的反射型衍射光栅结构。 它包括:(1)多个微透镜,每个微透镜在底部具有光滑的顶表面和闪耀的之字形格栅表面; (2)形成在Z字形格栅表面下方的光学涂层; 和(3)形成在光学涂层下方的反射构件。 通过锯齿状光栅表面,光学涂层和反射构件的协同作用,当入射光被反射时,入射光被分成红色,绿色和蓝色分量的重复序列,黑色矩阵分离 红色,绿色和蓝色组件。 一系列微光阀放置在反射入射光的路径中,以阻挡不需要的颜色分量。 反射型衍射光栅结构不需要各种彩色滤光片。 结果,它改善了图像的亮度并降低了功耗,并降低了制造成本。

    Method for broadening bandwidth of cholesteric liquid crystal
    10.
    发明授权
    Method for broadening bandwidth of cholesteric liquid crystal 有权
    胆甾型液晶带宽扩大的方法

    公开(公告)号:US06669999B2

    公开(公告)日:2003-12-30

    申请号:US09871397

    申请日:2001-05-30

    IPC分类号: C09K1900

    摘要: A method for making broadband cholesteric liquid crystals with improved bandwidth. The method includes the main steps of: (a) preparing a polymerization mixture containing first and second chiral liquid crystals, wherein the first chiral liquid crystal possesses a cholesteric liquid crystal phase and the second chiral liquid crystal possesses a helix-inversion characteristic, and at least one of the first or second chiral liquid crystals contains a polymerizable functional group; and (b) subjecting the polymerization mixture to a polymerization reaction, wherein the polymerization reaction is conducted such that the first chiral liquid crystal will go through a helix-inversion phenomenon. In a preferred embodiment, the second chiral liquid crystal has a temperature-dependent helicity which exhibits a helix inversion characteristic at a helix inversion temperature.

    摘要翻译: 制造带宽提高的宽带胆甾型液晶的方法。 该方法包括以下主要步骤:(a)制备含有第一和第二手性液晶的聚合混合物,其中第一手性液晶具有胆甾型液晶相,第二手性液晶具有螺旋反转特性, 第一或第二手性液晶中的至少一个含有可聚合官能团; 和(b)使聚合混合物进行聚合反应,其中进行聚合反应,使得第一手性液晶将经历螺旋反转现象。 在优选的实施方案中,第二手性液晶具有在螺旋反转温度下呈现螺旋反转特性的温度依赖性螺旋度。