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:
Jul. 28, 2015
Filed:
Jun. 28, 2013
Wcube Co., Ltd., George Town, KY;
Po-Chou Chen, New Taipei, TW;
Wcube Co., Ltd., George Town, KY;
Abstract
A backlight module of a display provides a backlight controlled by a switch. A first electrochromic film comprises a plurality of first electrochromic devices which may each be powered on to appear white or transparent, and a first power supply module. A second electrochromic film comprises a plurality of second electrochromic devices which may each be powered to appear black or transparent, and a second power supply module. The first electrochromic film is positioned between the backlight module and the second electrochromic film. A controller applies voltages to the first electrochromic devices and to the second electrochromic devices to control appearances of each individual first electrochromic devices and each individual second electrochromic devices.