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. 14, 1998
Filed:
Feb. 06, 1996
International Business Machines Corporation, Armonk, NY (US);
Abstract
This invention relates to a reflection liquid crystal display device using a reflection liquid crystal light bulb and a method for fabricating such liquid crystal display devices, and an object thereof is to provide a liquid crystal display device and its manufacture wherein the numerical aperture of the subpixel is increased to improve the display brightness. The present method comprises the steps of forming an optical absorbing layer 26 on a semiconductor substrate 1; forming a plurality of light reflecting films 32 on the optical absorbing layer 26 via an insulating film 28; forming an insulating film 36 all over the surface; coating positive photoresist all over the insulating film 36 to form a resist layer 64; exposing and developing the resist layer 64 from above to form a mask in such a way that the resist layer 64 remains only on the regions between the plurality of light reflecting films 32 in a self-aligned manner; and using the mask to etch the insulating film 36 to form pillar-shape spacers 34 on the regions between the plurality of light reflecting films 32.