US Patent 9613217 Confidential content display in flexible display devices

Confidential content within a file is masked for display on a flexible display device. A legend relating the masking to the confidential content is displayed in a hidden area created by bending the flexible display device. The flexible display device monitors secondary users and their gaze towards the flexible display device and the hidden area to determine if unauthorized secondary users can see the display and hidden area of the flexible display device.