Patent ID: 8964277
Filing Date: 2015-02-24
Classification: G06F

Abstract:
1. A color-changeable protective device for a portable device having a touch screen, the color-changeable protective device comprising: a power supply device; and an electro-chromic element coupled to the power supply device, wherein the electro-chromic element is configured to dispose on a touch display surface of the touch screen so as to protect and entirely cover the touch screen, and only according to whether an operating status of the electro-chromic element is a power-on status, the electro-chromic element appears to be at a transparent state or an opaque state, wherein when the electro-chromic element appears to be at the opaque state, a frame displayed by the touch screen is entirely covered by the opaque electro-chromic element, and when the electro-chromic element appears to be at the transparent state, the frame displayed by the touch screen is totally perceived through the electro-chromic element, so that an user operates the touch screen directly through the electro-chromic element.