Abstract: A liquid crystal display device includes: a pair of substrates; a pair of electrodes formed on the pair of substrates; a pair of alignment films formed on the pair of electrodes; and a liquid crystal layer sandwiched between the pair of alignment films, wherein at least one of the alignment films have a property of aligning liquid crystal molecules of the liquid crystal layer with a pretilt angle, the property being provided by a new bond formation reaction or bond cleavage reaction of molecular chains caused by irradiating the at least one alignment film with light.

Abstract: A liquid crystal display device which includes a pair of substrates; a liquid crystal layer sandwiched between the pair of substrates; and an electrode for applying a voltage to the liquid crystal layer is disclosed. The liquid crystal layers includes liquid crystal molecules, and is divided into a plurality of regions having different twist angles from one another.

Abstract: The liquid crystal display apparatus of the invention includes a first substrate and a second substrate disposed so as to face each other, a liquid crystal layer sandwiched between the first substrate and the second substrate, a first alignment film formed between the liquid crystal layer and theist substrate, and a second alignment film formed between the liquid crystal layer and the second substrate.

Abstract: In a driving circuit for a liquid crystal apparatus, a DC offset voltage the level of which changes depending upon the level of input video signals is applied as an input video signal. The DC voltage which appears in the liquid crystal and the level of which changes depending upon the level of input video signals can be completely compensated.

Abstract: A liquid crystal display device which comprises a pair of oppositely facing electrode substrates formed an alignment film on their surface and a liquid crystal filling the space between said electrode substrates, wherein the alignment film comprises an alicyclic polyimide obtained by polycondensation of a tetracarboxylic acid and a diamine, at least one of which is alicyclic and useful for a twisted nematic liquid crystal display device.

Abstract: A liquid crystal display apparatus comprising a pair of insulating substrates, a large number of picture element electrodes disposed into a matrix on the inner surface of one of the pair of substrates, a function element electrically connected to each of the picture element electrodes, and a liquid crystal layer charged between the pair of substrates, wherein the display apparatus further comprises on one of the substrate, an insulating protective film made of inorganic nitrides or inorganic oxides the insulating protective film being formed on the picture element electrode except for areas that constitute window regions, and an orientation film of a polyimide resin formed on the entire surface of the insulating protective film and window region, the orientation film has been rubbing-processed, whereby the occurrence of an internal polarization phenomenon can be prevented when a polyimide resin is used for the orientation film.