Fujitsu Corporation

Shigeru Masuda

Tsuyoshi Kamada

Yoshio Koike

Takashi Sasabayashi

Seiji Tanuma

Takatoshi Mayama

Satoshi Murata

Tadashi Hasegawa

Noriaki Furukawa

Syun Tsuyuki

Katsufumi Ohmuro

Minoru Ohtani

Katufumi Ohmuro

An element division liquid crystal display device with a liquid crystal inserted between first and second plates having alignment films, respectively. The alignment film of at least the first plate includes a single layer of alignment material having a plurality of first and second adjacent domains A and B and is continuously rubbed in one direction through first and second minute domains A and B. A further treatment, different from a rubbing treatment, is effected to the single alignment layer so that a pretilt angle of the liquid crystal contacting the alignment layer at one of the first and second domains is different from the pretilt angle of the liquid crystal contacting the alignment layer at the other domain. The further treatment includes one of the steps of irradiating with UV light, changing the chemical components of the material of the alignment layer, heating or changing the precuring process.

Element division liquid crystal display device and its manufacturing

The liquid crystal display panel which has improved viewing angle characteristics, is free from deterioration of a liquid crystal, enables the alignment division to be easily and ensurely carried out and has a simple structure. The liquid crystal display panel is constructed so that substrates sandwiching a liquid crystal therebetween each have an alignment film at their inner walls, at least one of the alignment films comprises a layer of a particular polyimide film material capable of inducing a change in surface energy upon the action of light or heat energy, the alignment film comprises an assembly of two adjacent minute domains and has been continuously rubbed in one direction along the minute domains and the two minute domains are different from each other in pretilt angle (defined as an angle at which liquid crystalline molecules rise from the surface of the substrate).

Liquid crystal display panel and process for producing the same

Growing community of inventors

Kawasaki, Japan

Shigeru Masuda