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. 29, 2013
Filed:
Dec. 21, 2009
Sang Moon Lee, Seoul, KR;
Hwan-soo Lee, Seoul, KR;
Young Woo Lee, Suwon, KR;
Jeong Bok Kwak, Suwon, KR;
Sang Moon Lee, Seoul, KR;
Hwan-Soo Lee, Seoul, KR;
Young Woo Lee, Suwon, KR;
Jeong Bok Kwak, Suwon, KR;
Samsung Electro-Mechancis Co., Ltd., Suwon, Gyunggi-do, KR;
Abstract
There is provided an electronic paper display device and a manufacturing method thereof. The electronic paper display device includes a first electrode formed of a transparent material; at least one or more second electrodes disposed to face the first electrode with differing gaps therebetween; and at least one or more display units disposed between the first and second electrodes and having optical properties varied according to voltage applied to the first and second electrodes. The display units are disposed between the first electrode and the second electrodes disposed to face the first electrode with differing gaps, so respective rotation amounts or rotation angles of the display units become different when the same magnitude of voltage is applied. Accordingly, a wide range of contrast levels is displayed.