A privacy display comprises a liquid crystal spatial light modulator, a switchable retarder and a passive compensation retarder arranged between a pair of polarisers. In a privacy mode of operation, on-axis light from the spatial light modulator is directed without change of image contrast, whereas off-axis light has reduced contrast to reduce the visibility of the display to off-axis snoopers over a wide polar angular range. In a wide angle mode of operation, the retardance of the switchable retarder is adjusted so that off-axis contrast is substantially unmodified.

A display apparatus includes a backlight source, a privacy filter disposed on the backlight source, a light adjusting panel disposed on the privacy filter, and a display panel disposed on the light adjusting panel. The light adjusting panel includes a first substrate, a first electrode, a second electrode, a first vertical alignment film disposed on the first substrate, a second substrate disposed opposite to the first substrate, a second vertical alignment film disposed on the second substrate, and a positive liquid crystal layer disposed between the first vertical alignment film and the second vertical alignment film. The first electrode and the second electrode are disposed on the first substrate. Here, the first electrode has a plurality of first slits, and a plurality of orthogonal projections of the first slits on the first substrate overlap an orthogonal projection of the second electrode on the first substrate.

Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: presenting first data on a first area of a display, wherein the first data is non-sensitive data; presenting second data on a second area of the display, wherein the second data is sensitive data; wherein the first data is displayed to feature a first viewing angle, and wherein the second data is displayed to feature a second viewing angle, wherein the second viewing angle is narrower than the first viewing angle so that a range of viewing angles from the display at which displayed data is visible is larger for the first data than for the second data.

Embodiments of the present invention provide a computer system, a computer program product, and a method that comprises identifying a first user of a plurality of users; identifying a location for the first user; transmitting input of the first user to a server computing device; and simultaneously displaying multiple personalized, dynamic displays using diffraction grating based off of input of the first user and location of the first user.

In one implementation, a method of operating a lenticular display is performed by a device including a processor, non-transitory memory, an image sensor, and a lenticular display. The method includes displaying, via the lenticular display, first content at a horizontal angle of a first user and second content, different than the first content, at a horizontal angle of a second user. The method further includes displaying, via the lenticular display, the first content at a second horizontal angle of the first user and the second content at a second horizontal angle of the second user.

An imaging directional backlight apparatus includes a waveguide and light source array for providing large area directed illumination from localized light sources. The waveguide may include a stepped structure in which steps may include extraction features optically hidden to guided light, propagating in a forward direction. Returning light propagating in a backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and defines the relative positions of system elements and ray paths. Alignment of the waveguide to mechanical and optical components may be provided by surface relief features of the waveguide arranged in regions adjacent the input surface and intermediate the light emitting regions of the light sources. Efficient, uniform operation may be achieved with low cross talk for application to autostereoscopic and privacy modes of operation.

A multi-view display system that enables viewers to individually interact with the system to provide information thereto is disclosed. The system includes a multi-view display, a system controller, and an input/communications device. In the illustrative embodiment, the input/communications device provides a way for a viewer to communicate, to the system, a viewing preference pertaining to the presentation of content and facilitates associating the viewing preference with a viewing location so that the content that is ultimately displayed via the multi-view display is viewable by viewer at the proper viewing location.

Methods, computer program products, and systems are presented. The method computer program products, and systems can include, for instance: presenting first data on a first area of a display, wherein the first data is non-sensitive data; presenting second data on a second area of the display, wherein the second data is sensitive data; wherein the first data is displayed to feature a first viewing angle, and wherein the second data is displayed to feature a second viewing angle, wherein the second viewing angle is narrower than the first viewing angle so that a range of viewing angles from the display at which displayed data is visible is larger for the first data than for the second data.

Disclosed is an imaging directional backlight including an array of light sources, and a control system arranged to provide variable distribution of luminous fluxes, scaled inversely by the width associated with the respective light sources in the lateral direction, across the array of light sources. The luminous intensity distribution of output optical windows may be controlled to provide desirable luminance distributions in the window plane of an autostereoscopic display, a directional display operating in wide angle 2D mode, privacy mode and low power consumption mode. Image quality may be improved and power consumption reduced.

Electronic equipment in a system such as a vehicle or building may include one or more displays. The displays may display image frames for users with light-modulating glasses. The image frames may include interspersed image frames corresponding to unique content for each of the users. Dummy frames may be incorporated into the displayed frames on the display to help obscure displayed content from external observers. The light-modulating glasses may have light modulators such as liquid crystal light modulators. Control circuitry in the glasses may adjust the light modulators to exhibit transparent intervals that overlaps desired image frames and opaque intervals that are aligned with other image frames and the dummy frames. This allows each user to view unique content on a shared display while preventing external observers without glasses from observing the content that is being presented.