In embodiments, an apparatus to enforce secure display view for trusted transactions may include a first input interface to receive from an application, via a trusted execution environment (TEE), viewport size data and an identifier of a display associated with a secure display of a trusted transaction; and a second input interface to receive from the application, via an untrusted execution environment, an encrypted transaction bitmap associated with the trusted transaction, to be securely displayed on the display; and an enforcement engine coupled to the first input interface and the second input interface, to verify that the size and location of the transaction bitmap are within the viewport to ensure the secure display of the transaction bitmap. In embodiments, after verification of the size and location of the transaction bitmap being within the viewport, the transaction bitmap may be displayed.

A vehicle display device includes a housing to be mounted on a vehicle and having an opening, a display unit disposed inside the housing and configured to project a display image toward a reflection unit arranged in front of a driver seat through the opening, and a controller configured to cause the display unit to exhibit a range display that defines a maximum range for a display image, upon detection of information indicating a change in the viewpoint of a driver on the vehicle

Image processing method and device for a spliced panel and a spliced panel are provided. The image processing method includes calculating a horizontal stretch coefficient of the spliced panel according to a resolution of the plurality of display units, a sum of horizontal spliced-gap widths of the spliced panel and a horizontal pixel pitch of the plurality of display units; calculating a vertical stretch coefficient of the spliced panel according to the resolution of the plurality of display units, a sum of vertical spliced-gap widths of the spliced panel and a vertical pixel pitch of the plurality of display units; stretching an original image to be displayed by the spliced panel according to the horizontal stretch coefficient and the vertical stretch coefficient to acquire a target image; and controlling display of the plurality of display units of the spliced panel according to the target image.

A head mount display (HMD) device includes: a display unit configured to display an image to a user based on an image signal; a viewpoint detector configured to detect a viewpoint corresponding to an object of the user's focus and configured to generate a viewpoint signal; and a controller configured to move the display unit based on the viewpoint signal and to generate a compensation image signal corresponding to the viewpoint signal such that the object of the user's focus is at a center of the display unit.

Provided is a display device for efficiently providing content to a user using a transparent display. The display device includes: a transparent display; a direction determiner configured to determine a user-facing surface among a first surface and a second surface of the transparent display, the user-facing surface referring to a surface which faces a user; and a controller configured to render first content on the transparent display in a direction corresponding to the first surface if the first surface faces the user, and configured to render second content on the transparent display in a direction corresponding to the second surface if the second surface faces the user.

In a display control apparatus, a cooperation unit capable of detaching from a meter device is prepared, and a smartphone is connected to the cooperation unit. The display control apparatus responds to changes in specification of a smartphone by cooperation function of the cooperation unit. The cooperation unit reads a cooperation pattern number stored in a memory on a meter device, and grasp an output image size, a display position, presence and absence of blank image. The cooperation unit receives an image data on a screen of the smartphone, and transmits image data in which change of display size, position adjustment and so on is performed to the meter device. The cooperation unit accepts a user input operation on an operation input device, transmits it to the smartphone so as to enable remote operation during driving.

A system and method for control of user interfaces on electronic devices. The system and method display still and/or video images, in an orientation-agnostic manner that is independent of a physical orientation of the display screen. This provides an interesting visual display effect whereby the image appears to remain in a fixed orientation (e.g., upright) relative to three-dimensional space, (e.g., earth level), untethered to any position or orientation of the display screen and/or device, while the display screen and/or device is changed in position and/or orientation, such that the portion of the viewed image changes according to the dimensions and orientation of the screen relative to an apparent fixed orientation and/or position of the underlying image. Such a system and method for control of user interfaces provides for more efficient use of a display screen having a relatively limited size, as is common for smartphones and tablet computers.

An image display system includes at least one display device and at least one information processing apparatus connected to the display device. The information processing apparatus includes an input unit which receives a plurality of image data items and parameters related to a display image, a determination unit which determines areas of an image indicated by the image data items, which areas are displayed by the display device as partial images of the display image, based on the parameters, a setting unit which sets up a switching condition for switching the image data items, a switching unit which switches the image data items when the switching condition is met, and a transmission unit which transmits data indicating the areas to the display device. The display device is configured to display the areas determined by the determination unit at intervals of a predetermined time.

A processing method and device for multi-screen splicing display are disclosed. The method includes: receiving instruction information for multi-screen splicing display, where the instruction information is used to instruct to splice at least two physical display screens for display; sending, according to the instruction information, display data to a video RAM of a virtual display screen formed by splicing the at least two physical display screens, where a size of the video RAM of the virtual display screen corresponds to a size of the virtual display screen; dividing the display data into at least two data blocks that correspond to sizes of the at least two physical display screens, and respectively sending the data blocks obtained by division to video RAMs of corresponding physical display screens.

An electronic device is provided that includes a first display unit including a first display; a second display unit including a second display disposed on a side of the first display and being rotatable with respect to the first display unit about a rotation axis extending in a front-rear direction such that an angle formed by the first and displays change; an angle and angular velocity acquisition unit that acquires the angle formed by the first and second displays and angular velocity of the angle; and a control unit that, when a user rotates the second display unit with respect to the first display unit, determines whether a horizontal direction of a video to be displayed on the first and second displays is made to match a vertical direction or a left-right direction based on the angle and the angular velocity acquired by the acquisition unit.