Ricoh Company, Ltd.

Cheil Industries Inc.

Yusuke Tsuda

Takanori Tano

Koei Suzuki

Jae Min Oh

Bum Jin Lee

O Bum Kwon

Won Seok Dong

Moo Young Lee

Disclosed is a laminated structure, including a substrate, a wettability changing layer on the substrate, the wettability changing layer including a material, a critical surface tension of the material being changed by providing energy thereto, and an electrically conductor layer on the substrate, the electrically conductor layer formed on a region of the wettability changing layer, the region being provided with the energy, wherein the material includes a structural unit including a side chain and a structural unit including no side chain.

Laminated structure, method of manufacturing a laminated structure, electronic element, electronic element array, image displaying medium, and image displaying device

A disclosed laminated structure includes a substrate; a wettability varying layer formed on the substrate, the wettability varying layer including a material whose critical surface tension is changed by receiving energy; and an electrode layer formed on the wettability varying layer, the electrode layer forming a pattern based on the wettability varying layer. The material whose critical surface tension is changed by receiving energy includes a polymer including a primary chain and a side chain, the side chain including a multi-branched structure.

Laminated structure, electronic element using the same, manufacturing method therefor, electronic element array, and display unit

A disclosed laminate structure is capable of having its surface free energy changed with a small amount of UV irradiation. The invention also discloses a method of manufacturing the laminate structure; an electronic device having the laminate structure; an electronic device array having a plurality of the electronic devices; and a display apparatus having the electronic device array. The laminate structure includes a substrate, a wettability variable layerdisposed on the substrate, and a conducting layerpatterned on the wettability variable layer. The wettability variable layerincludes a material whose critical surface tension varies upon application of energy. The material with variable critical surface tension has a main chain and a side chain. The side chain has two or more sites of which the bond is cleaved upon absorption of energy.

Laminate structure and its manufacturing method, including wettability variable layer of material of variable critical surface tension

Disclosed herein is a novel functional diamine compound having a dendron structure, polyamic acid which is produced using functional diamine, aromatic cyclic diamine, aliphatic cyclic acid dianhydride, and aromatic cyclic acid dianhydride, polyimide which is produced by imidizing polyamic acid, and an LC alignment film produced using polyimide. Even if the diamine compound is used in a small amount, it is possible to realize a high pretilt angle, thus the pretilt angle is easily controlled. Therefore, it can be used to produce an LC alignment film using a twisted nematic (TN) mode, in which the pretilt angle of liquid crystal is low, and a vertically aligned (VA) mode, which requires a high pretilt angle of about 90&#xb0;.

Diamine compound having dendron side chain and liquid crystal aligning agent using same

Disclosed herein are a novel diamine compound having a dendron side chain and a liquid crystal alignment material produced using the diamine compound. Specifically, the diamine compound is used to prepare a polyamic acid, which is then used to produce the liquid crystal alignment material. According to the liquid crystal alignment material, the pretilt angle of a liquid crystal is easy to control, and the alignment properties of a liquid crystal are good. Particularly, since the liquid crystal alignment material shows superior chemical resistance to washing solvents used in LCD panel fabrication processes, it has an advantage in that the alignment properties of a liquid crystal are not degraded even after washing.

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Fukuoka, Japan

Yusuke Tsuda