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. 16, 2013
Filed:
Jun. 24, 2011
Rong-chang Liang, Cupterino, CA (US);
Jiunn-jye Hwang, New Taipei, TW;
Jung-yang Juang, Taipei, TW;
Min-chiao Tsai, Tainan, TW;
Rong-Chang Liang, Cupterino, CA (US);
Jiunn-Jye Hwang, New Taipei, TW;
Jung-Yang Juang, Taipei, TW;
Min-Chiao Tsai, Tainan, TW;
Delta Electronics Inc., Taoyuan Hsien, TW;
Abstract
A method for manufacturing a switchable PBD includes filling a plurality of first-type particles and a plurality of second-type particles into each cell, where the plurality of first-type particles carries charges of a first charge polarity having a first charge density and the plurality of second-type particles is substantially electrically neutral, or carries charges having a second charge density that is substantially lower than the first charge density of the first-type particles, and filling a fluid into each cell, where the fluid comprises a charge controlling agent having a second charge polarity opposite to the first charge polarity, and the charge controlling agent has a substantially selective wettability, absorbability or adsorbability on the plurality of second-type particles. As such, at least part of the plurality of second-type particles is charged to have the second charge polarity in each cell.