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.:

US 7256848 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 14, 2007

Filed:

Oct. 14, 2003
Applicants:

Dae-ho Choo, Yong-si, KR;

Hwan-kyeong Jeong, Cheongju-si, KR;

Bong-woo Lee, Cheonan-si, KR;

Inventors:

Dae-Ho Choo, Yong-si, KR;

Hwan-Kyeong Jeong, Cheongju-si, KR;

Bong-Woo Lee, Cheonan-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/1337 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method and apparatus of aligning liquid crystal, a first ion beam is formed. The first ion beam is transformed into a second ion beam having transformed cross-section. The second ion beam advances toward a thin film including carbon-carbon double bond. The second ion beam forms a first angle with respect to the thin film. The second ion beam is transformed into an atomic beam. The atomic beam is irradiated onto the thin film to break the carbon-carbon double bond. The carbon-carbon double bond is broken to form a polarized functional group for aligning a liquid crystal molecule.


Find Patent Forward Citations

Choo, Dae-Ho. (2007). Method and apparatus of alligning liquid crystal (U.S. Patent No. 7256848). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7256848

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