Dai Nippon Printing Co., Ltd.

Masatoshi Oba

Masahiro Takahashi

Koji Arai

Seiji Tawaraya

Hideaki Yamagata

Hiroki Sakata

Tadashi Furukawa

Tatsuro Ishitobi

Masayuki Uchida

Atsushi Ono

Yousuke Wada

Provided is an organic EL display device capable of preventing or restraining color shift or color mixing in an image displayed in each of its pixels, this inconvenience being caused by the entry of light into the pixel from an organic EL element of a pixel adjacent to the pixel; and provided is a color filter forming substrate making it possible to produce such an organic EL display device. The color filter forming substrate is a substrate for an organic EL display device, in which: a pixel-dividing light-shielding region is arranged over one surface of a base material comprising a transparent substrate to make plural pixel regions into a region-divided form; and plural color-filter-forming coloring layers for multiple colors are arranged to the predetermined pixel regions in accordance with the respective colors, characterized in that a light-shielding layer is arranged in the pixel-dividing light-shielding region, and a surface of the light-shielding layer farthest from the one surface of the base material is positioned farther from the one surface of the base material than respective surfaces of the color-filter-forming coloring layers in the respective colors, these surfaces not being respective base material side surfaces of the coloring layers, are positioned.

Color filter forming substrate and organic EL display device

There is provided a color filter which can be manufactured by a simplified process and which will not short-circuit an electrode of a TFT substrate. The color filter includes a substrate, and a red layer, a green layer and a blue layer, formed on the substrate. When forming the green layer and the blue layer, these layers are not only formed on the substrate, but also laminated on the red layer to form a spacer comprised of the green layer and the blue layer, laminated on the red layer. The color filter further includes a transparent electrode layer which covers the substrate, the red layer, the green layer, the blue layer and the spacer, and an insulating black matrix layer formed on predetermined areas of the transparent electrode layer.

Color filter and method for manufacturing color filter

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Tokyo-to, Japan

Masatoshi Oba