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:
Jul. 18, 1995
Filed:
Mar. 02, 1994
Yukito Saitoh, Machida, JP;
Mayumi Teruya, Minato, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The object of this invention is to provide a light scattering liquid crystal display applicable to direct view type displays which realizes a structure with uniform-brightness and high-contrast. A liquid crystal display of this invention including a light scattering liquid crystal cell 10 comprising: polymer dispersed liquid crystal; a first surface and a second surface defining the liquid crystal cell 10; a background having black patterns 17, each occupying an area covering at least display pixel, and first openings 19 existing between the black patterns on the first surface; and opaque mask 21 having second openings 23 and shading the locations opposite to the first openings 19.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile