The present application intends to solve the problem of concealing a choice selection from third-party vision using optical effects. Disclosed are methods designed so that the user making the selection can easily tell the difference between the two types of option, correct choice versus confounder, but that difference is blurred rapidly with distanceup to one meter distance becomes indistinguishable. The disclosed methods can be used to make individual choices (2) in environments of proximity with others while maintaining the confidentiality of choice, for example, questionnaires (1) in various fields of education, ATM, voting booths, etc.

An electronic device includes a low-energy-consumption display configured to display first information and a transparent high-energy-consumption display positioned with an area overlapping the low-energy-consumption display in a manner such that the first information is visible to a user through the area when the transparent high-energy-consumption display is in a sleep mode.

A method, apparatus, and computer program product are provided in order to present different types of information, such as private information and public information, in a manner that preserves the confidentiality of the private information. In the context of a method, a determination is made as to whether information that is to be displayed is private. If the information is private, the method may cause the presentation of an obscured representation of the information on a non-private display. The method also causes the presentation of the information, such as an unobscured representation of the information, on a private pass-through display concurrent with the presentation of the obscured representation of the information on the non-private display. A corresponding apparatus and computer program product are also provided.

A control method and an apparatus thereof applied to a terminal apparatus with a display device are provided. The terminal apparatus can establish a data connection with a wearable device. The method includes: receiving a control instruction generated by the terminal apparatus; acquiring a display picture on the display device of the terminal apparatus based on the control instruction; and sending the display picture to the wearable device through data connection, so that the wearable device displays the display picture. After the control instruction is generated by the terminal apparatus, the display picture on the display device of the terminal apparatus is sent to the wearable device through the data connection, to display the display picture on the wearable device. Thus, viewing experience different from viewing through the terminal apparatus is provided for a user and the viewing experience for the user is improved.

A distance between a user and a user interface is detected to permit modification of the user interface to accommodate the user being located some distance from the user interface. A sensor detects a distance of the user from the user interface. The detected distance can be used to modify a display or presentation provided by the user interface so that the user can more easily interact with the user interface at a distance. The scope of user interaction with the user interface can also be made contingent upon the distance between a user and the user interface. Further, context modulation with user distance can result in an automatic change in the class of information displayed. The changes to the user interface output can be configured in accordance with a profile that may include priority for user interface items as well as customization for an environment or particular user.

There is provided a system and method for providing privacy viewing of an output from a electronic display, including a first polarizer configured to polarize a display signal at a first polarization angle; a second polarizer configured to polarize a noise signal at a second polarization angle orthogonal to the first polarization angle; a combiner configured to combine the polarized display signal and the polarized noise signal, and a third polarizer configured to receive the output of the electronic display and polarize the combined polarized display and noise signal at the first polarization angle. The system includes first and second polarization rotators configured to rotate the first and second polarization angles of the combined polarized display and noise signals prior to being output by the electronic display and prior to being received by the third polarizer.

A computing device includes a display having a striped polarizer, the striped polarizer includes a set of sub-areas having a first polarization interspersed between another set of sub-areas having a second polarization. The sub-areas are arranged to provide an alternating polarization across a dimension of the display. The computing device may be configured to receive information specifying a privacy display mode, select a privacy display mode based upon the received information, receive input display data configured to represent information for display, generate, in response to selecting the privacy display mode, output display data by inverting a first portion of pixels in the input display data which are associated with a first polarization, and not inverting a second portion of pixels in the input display data which are associated with a second polarization, and provide the output display data to a display.

A display device, a light converting device and a display system are provided. The display device includes a light-emitting module configured to emit at least two non-visible lights, non-visible lights of different types having different wavelengths; and a control module configured to control the light-emitting module to alternately emit the at least two non-visible lights at a wavelength adjusted timing, and to send a synchronous signal to a light converting device, the synchronous signal being configured to reflect the wavelength adjusted timing.

There is provided a method of controlling the operation of a first electronic device having a first display screen, the method comprising obtaining (101; 111) measurements of a position of the first electronic device relative to a second electronic device, an orientation of the first display screen, and/or an orientation of a second display screen of a second electronic device; determining (103; 113), using the obtained measurements, one or both of (i) whether a first user using the first electronic device can view the second display screen, and (ii) whether a second user using the second electronic device can view the first display screen; and controlling (105; 115) the display of information on the first display screen based on the result of the step of determining.

The present disclosure provides a display apparatus and a display system. The display apparatus comprises a transparent display layer, a light source layer and a signal controller. The transparent display layer is arranged on a surface of a light exit side of the light source layer; and the signal controller is configured to control operation states of the transparent display layer and the light source layer to realize switching between different modes.