Hosiden Corporation

Hiroyuki Ishikawa

Naoki Toyota

Mitsuru Takigawa

Mitsuo Moriya

Kunihiko Yokohama

Masaya Shimizu

A capacitive touchscreen including a first electrode layer, a second electrode layer, and at least one interlayer interposed between the first electrode layer and the second electrode layer. The first electrode layer includes a plurality of first electrodes, and the first electrodes are arranged at spaced intervals along a first direction. The second electrode layer includes a plurality of second electrodes, and the second electrodes are arranged at spaced intervals along a second direction so as to cross the first electrodes. The second direction crosses the first direction. The at least one interlayer has a thickness set such that a coupling capacitance between each first electrode and each second electrode is between or equal to 0.5 pF and 2 pF.

Capacitive touchscreen

A liquid crystal display apparatus is provided in which light leakage from a peripheral portion of a non-selected pixel can be suppressed without reducing the aperture ratio of each pixel, and the contrast can be improved. A liquid crystal display apparatusincludes: first and second transparent substratesandwhich are opposed to each other to be placed through a predetermined gap; a liquid crystal layerwhich is placed between opposed surfaces of the first and second transparent substratesand; first strip-like transparent electrodeswhich are formed in a stripe-like pattern on a surface of the first transparent substratethat is opposed to the second transparent substrate; a transparent resin filmwhich is a transparent resin covering film that is formed after a stripe-like black maskis formed in a direction perpendicular to the first strip-like transparent electrodes, on a surface of the second transparent substratethat is opposed to the first transparent substrate, the resin film having inverted trapezoidal recessed portionsin the film surface corresponding to gaps of the black mask; and second strip-like transparent electrodeswhich are formed in the recessed portionsof the resin film, and which have an inverted trapezoidal shape.

Growing community of inventors

Yao, Japan

Hiroyuki Ishikawa