An LCD includes a 2-D array of pixels including at least one transmissive light modulator including a first light modulation signal input, and at least one reflective light modulator including a second light modulation signal input, a processor configured to provide a plurality of images to a display driver; and a display driver configured to provide the plurality of images to the 2-D array of pixels, wherein the display driver provides a first image frame to the transmissive light modulator, wherein the display driver provides a second image frame to the reflective light modulator; wherein the display driver provides a first image frame to the transmissive light modulator, wherein the display driver provides a second image frame to the reflective light modulator, and wherein the first image frame is displayed by the transmissive light modulator at the same time the second image frame is displayed by the reflective light modulator.

A dual light source system is adapted to be disposed in a display region of a display device and includes first and second light sources. The first light source includes a plurality of first packaging units each including at least one first LED element and is configured to emit a plurality of visible lights having different wavelengths within a first wavelength range to generate a first image. The second light source is configured to emit a plurality of invisible lights within a second wavelength range to generate a second image without interfering with the first image and includes a plurality of spaced-apart second packaging units each including at least one second LED element. A method of generating dual images is also disclosed.

An anti-peeping assembly and a manufacturing method thereof, a method for controlling an anti-peeping assembly and a display device are described. The anti-peeping assembly includes a first substrate and a second substrate arranged facing each other, and a liquid crystal layer located between said first substrate and said second substrate; wherein, a first electrode is disposed on said first substrate at a side near the liquid crystal layer, and a plurality of second electrodes arranged as an array are disposed on said second substrate at a side near the liquid crystal layer; and wherein, in response to applying a same voltage to said first electrode and any second electrode, liquid crystals between said first electrode and said any second electrode scatter light, and in response to applying different voltages to said first electrode and said any second electrode, liquid crystals between them transmit light.

Techniques for updating a user interface on a computer system are described. In an example, the computer system detects a gaze position on the user interface. The user interface includes a first open window and a second open window. The first open window is in a foreground of the user interface. The second open window is in a background of the user interface. The computer system determines a region of the user interface around the gaze position. The computer system also displays a viewer based on the region. The viewer is displayed in the foreground of the user interface and shows a screenshot of at least a portion of the second open window.

Techniques of this disclosure may include processing data using one or more processors to produce a first image, including storing intermediate first results of processing the data in at least one internal memory of the one or more processors according to a first memory access pattern, processing the data using the one or more processors to produce a second image, including storing intermediate second results of processing the data in the at least one internal memory of the one or more processors according to a second memory access pattern, wherein the second memory access pattern is different than the first memory access pattern, comparing the first image to the second image, and generating an interrupt if the comparison indicates that the first image is different than the second image.

Techniques for changing the presentation of information on a user interface based on presence are described. In an example, a computer system determines, based on an image sensor associated with the system, a first presence of a first user relative to a computing device. The computer system also determines an identifier of the first user. The identifier is associated with operating the computing device. The operating comprises a presentation of the user interface by the computing device. The computer system also determines, based on the image sensor, a second presence of a second person relative to the computing device. The computer system causes an update to the user interface based on the second presence.

Techniques for data sharing between two computing devices are described. In an example, a computer system determines a first presence of a first user relative to a first computing device. The computer system also determines a first identifier of the first user. The first identifier is associated with operating the first computing device. The operating comprises sharing data with a second computing device. The computer system also determines a second presence of a second user relative to the second computing device. The computer system also determines a second identifier of the second user. The second identifier associated with operating the second computing device. The computer system cause the data to be shared with the second computing device based on the first presence, the first identifier, the second presence, and the second identifier.

A liquid crystal display panel includes first and second substrates, first pixel electrodes, second pixel electrodes, common electrodes, first auxiliary electrodes, and a liquid crystal layer. The second substrate is disposed opposite to the first substrate. The liquid crystal layer is disposed between the first and the second substrates. The first pixel electrodes, the second pixel electrodes, and the common electrodes are disposed on the first substrate. The first auxiliary electrodes are disposed on the second substrate. One of the first pixel electrodes is not overlapping one of the first auxiliary electrodes in a vertical projection direction and overlapping one of the common electrodes in the vertical projection direction. A driving method of the liquid crystal display panel includes setting a first voltage difference in a wide viewing mode and a second voltage difference in a narrow viewing mode between the first auxiliary electrodes and the common electrodes.

Examples are disclosed that relate to attributing touch events on a touch-sensitive computing device to a user who performed the touch event. One example provides a computing system, comprising a touch sensor, a communication subsystem comprising a first communication mechanism integrated with the touch sensor, the first communication mechanism configured to communicate with a portable device over a first communication channel via a body-transmissible signal upon detection of a touch input, and also comprising a second communication mechanism configured to communicate with the portable device via a second communication channel. The computing device further comprises instructions executable to detect a touch input via the touch sensor, communicate information to the portable device via the body-transmissible signal using the first communication mechanism, and connect with the portable device via the second communication mechanism based upon the information communicated to the portable device via the body-transmissible signal.

A source device for transmitting content to a sink device is provided. The source device may include an interface configured to perform high-bandwidth digital content protection (HDCP) authentication with the sink device, and a controller configured to determine an HDCP version supported by the sink device, convert the content so as to be encrypted in the HDCP version supported by the sink device in response to a determination that another HDCP version applied to the content is not supported by the sink device, encrypt the converted content in the HDCP version supported by the sink device, and control the interface to transmit the content to the sink device.