The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2004
Filed:
May. 24, 2002
Toshihiro Fukuda, Kanagawa, JP;
Tomoki Furuya, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
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.