公开(公告)号：US5705302A

公开(公告)日：1998-01-06

申请号：US468479

申请日：1995-06-06

申请人： Yoshihiro Ohno ,  Hiroshi Kiguchi ,  Fumiaki Matsushima ,  Taeko Nakano ,  Kuniyasu Matsui ,  Tsuyoshi Sunagawa ,  Toshiki Nakajima ,  Satoru Miyashita ,  Shigeyuki Ogino

发明人： Yoshihiro Ohno ,  Hiroshi Kiguchi ,  Fumiaki Matsushima ,  Taeko Nakano ,  Kuniyasu Matsui ,  Tsuyoshi Sunagawa ,  Toshiki Nakajima ,  Satoru Miyashita ,  Shigeyuki Ogino

IPC分类号： G02B5/20 ,  G02F1/1335

CPC分类号： G02B5/20 ,  G02F1/1335

摘要： A color filter for a liquid crystal display device comprises an optically transparent substrate, a transparent conductive layer formed on the substrate, and a color layer formed on the transparent conductive layer with red, green and blue pixels arranged in a predetermined pattern. The color layer comprises pigments for coloring purpose and transparent conductive particles having a hydrophobic surface. The transparent conductive particles are included from 5% to 50% by volume of the color layer. The color layer may preferably have a specific resistivity of from 10.sup.-1 .OMEGA..multidot.cm to 10.sup.8 .OMEGA..multidot.cm. The transparent conductive particles comprise base transparent conductive particles having a hydrophobic compound bound on their surface by coupling or graft polymerization. A typical process of the color filter production comprises the steps of: (a) forming the transparent conductive layer of a predetermined pattern on the transparent substrate, (b) preparing a micelle colloid dispersion by dispersing a pigment and transparent conductive particles having hydrophobic surface in a medium containing a redox reactive surfactant and an electrolyte, and (c) carrying out an electrolysis in the micelle colloid dispersion by utilizing the transparent conductive layer on the transparent substrate for the anode to deposit the color layer comprising the pigment and the transparent conductive particles on the transparent conductive layer.

摘要翻译： 液晶显示装置的滤色器包括光学透明基板，形成在基板上的透明导电层，以及以透明导电层形成的以预定图案排列的红色，绿色和蓝色像素的彩色层。 着色层包含用于着色的颜料和具有疏水表面的透明导电颗粒。 透明导电颗粒占彩色层的5％至50％（体积）。 彩色层可以优选具有10-1欧米伽×10 8欧姆×厘米的比电阻率。 透明导电颗粒包括具有通过偶联或接枝聚合在其表面上结合的疏水性化合物的基底透明导电颗粒。 彩色滤光片制造的典型工艺包括以下步骤：（a）在透明基板上形成预定图案的透明导电层，（b）通过将颜料和具有疏水表面的透明导电颗粒分散在其中制备胶束胶体分散体 含有氧化还原反应性表面活性剂和电解质的介质，（c）通过利用透明基板上的透明导电层进行负极沉积包含颜料和透明导电颗粒的着色层在胶束胶体分散液中进行电解 在透明导电层上。