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    • 3. 发明授权
    • Photochromic photosensitive composition
    • 光致变色光敏组合物
    • US4485168A
    • 1984-11-27
    • US502017
    • 1983-04-21
    • Seiichi ArakawaKoichi KawasumiJunetsu Seto
    • Seiichi ArakawaKoichi KawasumiJunetsu Seto
    • C09K9/02G02B5/23G02B5/28G03C1/685G03C1/733
    • G03C1/685Y10S428/913Y10S430/163
    • A photochromic photosensitive composition contains a benzothiazolinospiropyran compound represented by the general formula: ##STR1## wherein R.sub.1 represents an alkyl group containing 1 to 10 carbon atoms, R.sub.2 represents an alkyl group containing 1 to 10 carbon atoms or a phenyl group, R.sub.3 represents a hydrogen atom, a halogen atom, a methoxy group or an alkyl group containing 1 to 5 carbon atoms, and R.sub.4 represents a hydrogen atom, an alkyl group containing 1 to 5 carbon atoms, a methoxy group or a methylthio group, dissolved or dispersed in a bisphenol A type polyether resin for enhancing thermal stability of the compound in a colored state. Addition of a phenol to the composition serves to further enhance the heat stability. As compared with conventional photochromic compositions, this photochromic photosensitive composition is thermally extremely stable in a colored state, and the developed color image can be stored for an enough long time to be suited for long-time recording.
    • PCT No.PCT / JP82 / 00345 Sec。 371日期1983年4月21日 102(e)日期1983年4月21日PCT提交1982年8月28日PCT公布。 公开号WO83 / 00873 日期:1983年3月17日。光致变色光敏组合物含有下列通式表示的苯并噻唑啉二甲基吡喃化合物:其中R 1表示含有1至10个碳原子的烷基,R 2表示含有1至10个碳原子的烷基或 苯基,R 3表示氢原子,卤素原子,甲氧基或含有1至5个碳原子的烷基,R 4表示氢原子,含有1至5个碳原子的烷基,甲氧基或甲硫基 基团,溶解或分散在双酚A型聚醚树脂中,用于增强着色状态的化合物的热稳定性。 向组合物中加入苯酚用于进一步提高热稳定性。 与常规的光致变色组合物相比,该光致变色光敏组合物在着色状态下极其稳定,并且显影的彩色图像可以存储足够长的时间以适合长时间记录。
    • 9. 发明授权
    • Reflection type liquid crystal display device in which pixel electrodes have surface irregularities due to disposal over switching elements
    • 反射型液晶显示装置,其中像素电极由于处理开关元件而具有表面凹凸
    • US06172726B2
    • 2001-01-09
    • US09146358
    • 1998-09-03
    • Masataka MatsuteSeiichi Arakawa
    • Masataka MatsuteSeiichi Arakawa
    • G02F11335
    • G02F1/133553G02F1/133504G02F2001/133638G02F2203/02
    • A liquid crystal display device in which low power consumption and bright white color display are enabled to achieve high contrast as well as a response speed and picture quality compatible with a moving picture. A transparent substrate having a transparent electrode and a polarizing plate and a facing side substrate having plural pixel electrodes formed of a light reflective material and plural switching elements driving these pixel electrodes are arranged at a predetermined separation so that the transparent electrode and the pixel electrodes face each other. A liquid crystal layer formed of a nematic liquid crystal is interposed between the transparent substrate and the facing side substrate. The nematic liquid crystal is preferably a negative type nematic liquid crystal having negative anisotropy. The surfaces of the plural pixel electrodes towards the liquid crystal layer preferably present surface irregularities. If the surfaces of the pixel electrodes towards the liquid crystal are not irregular surfaces, the transparent substrate preferably has a light-scattering layer. A color filter is preferably provided on the transparent substrate or on the facing side substrate.
    • 能够实现低功耗和亮白色显示以实现高对比度以及与运动图像兼容的响应速度和图像质量的液晶显示装置。 具有透明电极和偏光板的透明基板和具有由光反射材料形成的多个像素电极的对置侧基板和驱动这些像素电极的多个开关元件布置成预定的间隔,使得透明电极和像素电极面对 彼此。 由向列型液晶形成的液晶层插入在透明基板和相对侧基板之间。 向列液晶优选为具有负各向异性的负型向列型液晶。 朝向液晶层的多个像素电极的表面优选呈现表面不规则。 如果像素电极朝向液晶的表面不是不规则的表面,则透明基板优选具有光散射层。 优选在透明基板上或面对侧基板上设置滤色器。