Sony Corporation

Tomoki Furuya

Toshihiro Fukuda

Shinya Watanabe

Shunji Kurita

Shouhei Maezawa

There is provided a micro lens array () in which a plurality of micro lenses () is disposed two-dimensionally on a substrate, wherein the focal distance f of the micro lens () and distance Ts from the main surface of the micro lens () to the substrate surface upon which light is incident meet the following/&#x221a;{square root over (2)}/&#x221a;{square root over (2)}where P is a pitch of the micro lenses () and (X, Y) is within an X-Y coordinate system surrounded by the following point sets The micro lens array can be used to improve the contrast of a liquid crystal display having an optical compensation element provided therein.

Liquid crystal display, and projection type display using liquid crystal display layer

A display element having a plurality of pixel portions arranged two-dimensionally with a predetermined pixel pitch and a microlens array including a plurality of microlenses arranged two-dimensionally corresponding to the plurality of pixel portions on an incident side or an emission side of light with respect to the pixel portions, wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch of the plurality of microlenses is set to a pitch smaller than the lens pitch able to substantially equivalently maintain a converging efficiency of a lens of the hyperboloid of revolution and a lens of an ellipsoid of revolution with respect to the incident light and able to maintain a converging efficiency higher than the converging efficiency of the lens of the ellipsoid of revolution or wherein, in the microlens array, each microlens has a lens surface of a hyperboloid of revolution, and a lens pitch is 20 &#x3bc;m or less; a display device; and a microlens array.

Display element, display device, and microlens array

A liquid crystal display device includes a liquid crystal layer, pixel electrodes having pixel apertures, and at least one microlens array including microlenses arranged two-dimensionally in correspondence with the pixel apertures. Each microlens includes a condenser lens having at least one lens surface along an optical axis and condensing light incident thereon toward the corresponding pixel aperture, and a field lens having at least one lens surface along the optical axis and being constructed such that the focal point thereof is at approximately the same position as the principal point of the condenser lens. The overall focal point of the condenser lens and the field lens is shifted from the corresponding pixel aperture, and the amount of shift is set such that an effective aperture ratio is increased compared with the case in which the overall focal point is at the same position as the corresponding pixel aperture.

Growing community of inventors

Kanagawa, Japan

Tomoki Furuya