Kabushiki Kaisha Toshiba

Masato Kemmochi

Yoshihiro Watanabe

Nozomu Harada

Hiroki Nakamura

Yoshitaka Yamada

Michiya Kobayashi

Masato Shoji

A front surface of the opposite electrode of a liquid crystal display panel is formed in a curved shape. The relation between the reflecting surface of the pixel electrode and the curved surface of the opposite substrate is defined so that a leaving direction of the light that is reflected by the first face of the opposite substrate is different from a leaving direction of light that is emitted from the first face of the opposite substrate after having been reflected by the pixel electrodes through the liquid crystal layer. Thus, undesired light on the front surface of the opposite substrate is separated from light that is displayed. Consequently, an image free of dazzling and deterioration of contrast ratio due to undesired reflected light can be obtained with a high contrast ratio. In a display apparatus containing the reflection type liquid crystal display, an incident surface to a dichroic prism is an inclined surface including a curved surface, not a surface that is perpendicular to the optical axis. Thus, signal light that is reflected on each reflection type liquid crystal display panel and that is displayed can be separated from undesired light that is reflected on the surface of the dichroic prism. Thus, an image with a high quality, and a high contrast ratio can be displayed.

Reflection type liquid crystal display device and display apparatus therewith

An array substrate typically used in a liquid crystal display device includes inter-layer insulating films thick enough to prevent step-off breakage of conductive layers at contact holes while promising a reliability. Thick inter-layer insulating films are made by stacking a film made of an inorganic material, such as silicon nitride or silicon oxide, having a low moisture permeability and thereby promising a reliability of the liquid crystal display device, and a film made of an organic material, such as acrylic resin, that can be readily stacked thick so that the inner wall of the contact hole is gently sloped with respect to the substrate surface to thereby prevent step-off breakage of a conductive layer as thin as 100 nm or less.

Array substrate, liquid crystal display device and their manufacturing method

Array substrate, liquid crystal display device and their manufacturing

Reflection LCD with a counter substrate having a plurality of curved

A pixel electrode is disposed with an inclination angle to a base member on a front side (namely, an opposite substrate side) of a liquid crystal display panel. The relation between the reflecting surface of the pixel electrode and the main surface of the base member on the front side of the liquid crystal display panel is defined so that the difference between the reflecting angle of light that is entered as incident light and reflected on the surface of the base member and the leaving angle of light emitted as display light via the liquid crystal display panel exceeds the collection angle of the display apparatus. Thus, undesired light on the main surface of the base member of the display surface is separated from light that is displayed. Consequently, an image free of dazzling and deterioration of contrast ratio due to undesired reflected light can be obtained with a high contrast ratio. In a display apparatus containing the reflection type liquid crystal display, an incident surface to a dichroic prism is an inclined surface, not a surface that is perpendicular to the optical axis. Thus, signal light that is reflected on each reflection type liquid crystal display panel and that is displayed can be separated from undesired light that is reflected on the surface of the dichroic prism. Thus, an image with a high quality, and a high contrast ratio can be displayed.

Reflection type liquid crystal display having inclined pixel electrodes

Growing community of inventors

Saitama-ken, Japan

Masato Kemmochi