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:
Apr. 16, 2002
Filed:
Mar. 19, 1998
Masaki Munakata, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A reflective guest-host-liquid-crystal display device includes: first and second substrates jointed to each other, with a predetermined gap provided therebetween; and guest-host liquid crystal including a dichroic dye, held in the gap. The first substrate includes: switching devices; a light-reflection layer; a quarter-wavelength-plate layer, formed above the switching devices and the light-reflection layer, having a contact hole in conduction with the switching devices; pixel electrodes, formed by patterning the surface of the quarter-wavelength-plate layer, connected to the switching devices by the contact hole; and a light-shielding black matrix formed along the border of each pixel electrode. The second substrate has a counter electrode formed on the outer surface thereof.