Dai Nippon Printing Co., Ltd.

Japan Energy Corporation

Wataru Saito

Yudai Yamashita

Atsushi Baba

Atsushi Yoshizawa

Tadafumi Shindo

Yoshinori Kinase

Tisato Kajiyama

Isa Nishiyama

Naoki Shimada

Hidetoshi Ozawa

Yasuhiro Imamura

Yoshitaka Goto

Norihiro Kaiya

The present invention provides a thin-film transistor that is formed by using a patterning method capable of forming a semiconductor channel layer in sub-micron order and a method for manufacturing thereof that provides a thin-film transistor with a larger area, and suitable for mass production. These objects are achieved by a thin-film transistor formed on a substratewith a finely processed concavoconvex surface, in which a source electrode and a drain electrode are formed on adjacent convex portions of the concavoconvex surface, with a channel and a gate being formed on a concave area between the convex portions. A gate electrode, a gate insulating filmand a semiconductor channel layerare laminated in this order on the concave area from the bottom surface of the concave portion toward the top surface. Preferably, in this thin-film transistor, the concavoconvex surface is formed of a curing resin, a semiconductor constituting a thin-film transistor is formed of a semiconductor such as polycrystal silicon or an organic semiconductor material, and the substrate is formed of glass, plastic or a composite material of these materials.

Thin film transistor and method for manufacturing the same

Thin-film transistor and method for manufacturing the same

A recording display medium is provided which can offer a high display contrast and is less likely to cause a lowering of contrast or disappearance of display even in low temperature and high temperature regions. A smectic liquid crystal composition, for use in the recording display medium, and use of the recording display medium are also provided. The liquid crystal composition comprises: at least one member selected from the group constituting of compounds represented by the following general formula (I): ##STR1## wherein R.sup.1 represents an alkyl or alkoxy group having 8 to 18 carbon atoms; and at least one member selected from the group consisting of compounds represented by the following general formulae (II) to (VII): ##STR2## wherein R.sup.2, R.sup.4, R.sup.5, and R.sup.6 represent an alkyl group having 2 to 18 carbon atoms, R.sup.3, R.sup.7, R.sup.8, R.sup.9, and R.sup.10 represent an alkyl or alkoxy group having 2 to 18 carbon atoms, and X represents a halogen atom or an alkyl or alkoxy group having 2 to 18 carbon atoms.

Smectic liquid crystal composition for recording display medium,

A record display medium is provided which can offer a high display contrast and is less likely to cause a lowering of contrast or disappearance of display even in low temperature and high temperature regions. A polymeric material for a liquid crystal/polymer composite film comprising a liquid crystal present in a polymer matrix, a liquid crystal/polymer composite film using the material, and use of the record display medium are also provided. The polymeric material for a liquid crystal/polymer composite film comprising a liquid crystal present in a polymer matrix has a glass transition temperature of 150.degree. C. or above and is insoluble in water.

Polymeric material for liquid crystal/polymer composite film, record

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Tokyo-to, Japan

Wataru Saito