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:
Oct. 17, 2023
Filed:
Dec. 21, 2020
Liqxtal Technology Inc., Tainan, TW;
Chih-Chan Lin, Tainan, TW;
Yu-Ching Chen, Tainan, TW;
Liqxtal Technology Inc., Tainan, TW;
Abstract
A liquid crystal phase modulation device includes a first substrate, a second substrate, a liquid crystal layer, at least one first spacer, and a first alignment layer. The second substrate is opposite to the first substrate. The liquid crystal layer is between the first substrate and the second substrate. The one first spacer is between the first substrate and the second substrate. The first alignment layer is adjacent to the liquid crystal layer and the first spacer, and has a first alignment direction. The first spacer has a first length in the first alignment direction and a second length in a direction perpendicular to the first alignment direction as view from top, and the first length is greater than the second length.