Toshiba Matsushita Display Technology Co., Ltd.

Shinji Ogawa

Kenji Nakao

Hirofumi Wakemoto

Naoya Kubota

Yoshinori Yamamoto

A liquid crystal display panel structured such that a liquid crystal layer is held between paired electrode substrates, comprises a support base member of a nearly rectangular shape provided in at least one of the paired electrode substrates, a counter electrode supported by the support base member, and an alignment film which is located within a surface of the counter electrode in contact with the liquid crystal layer. The rubbing direction of the alignment film is parallel to one side of the support base member and the counter electrode has a nonlinear edge extending in the rubbing direction of the alignment film.

Liquid crystal display panel

An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The display area includes a plurality of pixels arrayed in a matrix, and the rubbing directions of the alignment films are substantially opposite to a scanning direction in which rows of the pixels are sequentially selected for application of the drive voltage in a display operation.

Liquid crystal display panel and method for driving the same

An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The rubbing directions of the pair of alignment films are oriented toward a side of a main diffusion source of impurity ions.

Liquid crystal display panel in which the rubbing directions of the pair of alignment films are oriented toward a side of a main diffusion source of impurity ions

An OCB mode liquid crystal display panel comprises a pair of electrode substrates, a liquid crystal layer which is held between the pair of electrode substrates and has liquid crystal molecules whose alignment state is controlled within a display area by a drive voltage applied from the electrode substrates, and a pair of alignment films which are disposed on the electrode substrates in contact with the liquid crystal layer and whose rubbing directions are set parallel to each other. The concentration of the impurity ions contained in that part of the liquid crystal layer which is located inside the display area is lower than the concentration of the impurity ions contained in that part of the liquid crystal layer which is located outside the display area.

Growing community of inventors

Ishikawa-gun, Japan

Shinji Ogawa