Browse Prior Art Database

Various privacy mode ideas Disclosure Number: IPCOM000194697D
Original Publication Date: 2010-Apr-07
Included in the Prior Art Database: 2010-Apr-07
Document File: 2 page(s) / 12K

Publishing Venue



Disclosed are processes that detect a lenticular privacy filter attached to the screen of a notebook computer as well as a specific application running to initiate a change of the color calibration profile in use by the notebook computer. The notebook computer screen is color calibrated twice, using a color calibration device. The first calibration is performed with the lenticular privacy filter attached to the notebook computer and the second is performed without it attached. Distinct identifying names are associated with the two above described color calibration profiles, and the disclosed processes are used to switch between these profiles, for the purpose of maintaining accurate color calibration both with and without the lenticular privacy filter attached to the notebook computer.

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Matthew Kohut, Kevin Beck, Harriss Ganey

Lenticular privacy filters are commonly used by notebook computer users to render screens of notebook computers unreadable by observers attempting to view the screen of the notebook computer. They also have the undesirable effect of changing the visible color and brightness characteristics of the notebook computer screen.

Industry standard color calibration tools, such as those built into some ThinkPad notebook computers, are commonly employed by users desiring a notebook computer screen calibrated to a given color profile, consisting of a given brightness, specific color values and a specific gamma value, among others.

Given that the attachment of a lenticular privacy filter changes the color and brightness characteristics of the notebook computer screen to which it is attached, a user desiring accurate color calibration in both the attached and unattached state of the lenticular privacy filter must calibrate the screen twice, once in each of the above states, and then manually switch between the two profiles, using either the generic, native Windows tool or an application specific to the color calibration device.

The first part of this disclosure addresses automation of this switching using an embedded microswitch located in the slot existing in the bezel of some ThinkPad screens which exists to receive the retaining tab of lenticular privacy filters designed specifically for ThinkPad notebook computers. When the lenticular privacy filter re...