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:
Dec. 03, 2013
Filed:
Jun. 30, 2011
Jae Hong Park, Hwaseong-si, KR;
Suk Choi, Seongnam-si, KR;
Ohjeong Kwon, Hwaseong-si, KR;
Hyelim Jang, Yongin-si, KR;
Sung-jae Yun, Hwaseong-si, KR;
Hyeokjin Lee, Seongnam-si, KR;
Yong Woon Lim, Seoul, KR;
Heeseop Kim, Hwaseong-si, KR;
Jae Hong Park, Hwaseong-si, KR;
Suk Choi, Seongnam-si, KR;
Ohjeong Kwon, Hwaseong-si, KR;
Hyelim Jang, Yongin-si, KR;
Sung-Jae Yun, Hwaseong-si, KR;
Hyeokjin Lee, Seongnam-si, KR;
Yong Woon Lim, Seoul, KR;
Heeseop Kim, Hwaseong-si, KR;
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Abstract
A display panel includes a first substrate and a second substrate facing the first substrate. The second substrate includes a first electrode and a second electrode spaced apart from each other. A cholesteric liquid crystal having a pitch shorter than a wavelength of a visible ray and a rotation axis substantially perpendicular to the first and second substrates is disposed between the first and second substrates. The display panel displays a grayscale image in response to an electric field generated between the first and second electrodes. A polymer is added to the cholesteric liquid crystal, and a concentration of the polymer is controlled by exposing the polymer to a light. The concentration of the polymer in an area adjacent to the first substrate may be higher than the concentration of the polymer in an area adjacent to the second substrate.