Patent ID: 6791646
Filing Date: 2004-09-14
Classification: G02F

Abstract:
A twisted nematic liquid crystal display panel, comprising:a first substrate having bus lines, active elements, picture electrodes and a first alignment film treated by rubbing in a first direction; a second substrate, opposed to said first substrate, having a common electrode and a second alignment film treated by rubbing in a second direction different than the first direction, at least one of the first and second alignment films being at least partially treated by irradiation with ultraviolet rays such that a surface condition thereof is changed; and a liquid crystal between said first and second substrates, the rubbing and irradiation of the at least one of the first and second alignment films resulting in liquid crystal molecules between said first and second alignment films having a uniform alignment by being aligned in a substantially identical tilting direction throughout a plurality of pixels during application of a voltage for an extended period of time.