Provided is a display device including: a display, a communication interface comprising communication circuitry configured to communicate with a source device, and a processor configured to execute at least one instruction. When an aspect ratio of an image corresponding to content is changed, the display device may output an optimized full screen in response to the change of the aspect ratio.

An embodiment of the present disclosure provides a data transmission method that transmits data in a clock-embedded manner, including: dividing the data into a plurality of data packets having a bit number of ‘a’; determining a transition code including information on a first transition facilitating data packet and a second transition facilitating data packet having the same high-order bits ([a−1:1]) among the data packets; converting the plurality of data packets into transition ensuring data packets by using the transition code; and transmitting the transition code and the transition ensuring data packets.

A multi-screen display control device includes a plurality of graphics processing units (GPUs) and a watchdog chip. The GPUs transform image data that a host transfers to the multi-screen display control device through a universal serial bus (USB) interface into a plurality of high-definition multi-media interface (HDMI) sub-images to be displayed by a plurality of screens. The watchdog chip is coupled to the GPUs and, when any of the GPUs crashes, the watchdog chip outputs a reset signal to reset all of the GPUs.

A control signal transmission circuit and a control signal receiving circuit for an audio/video interface are provided. The control signal transmission circuit includes an audio/video interface encoder, a signal packaging circuit and a data allocator. The audio/video interface encoder is configured to receive an audio packet and supports a user-defined packet format. The signal packaging circuit is configured to receive a first control signal and package the first control signal into a control data packet according to the user-defined packet format. The data allocator is configured to receive a video data and a second control signal and to mix the second control signal and the video data to generate a mixed data packet. The audio/video interface encoder packages the control data packet, the mixed data packet and the audio packet according to an audio/video transmission protocol to generate an audio/video and control data.

This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for reducing gamut mapping luminance loss. A gain value of at least one primary color may be reduced in a native color gamut based on an analog technique (e.g., using a DDIC in a display panel) to provide a reduced color gamut that is smaller than the native color gamut. The reduced color gamut may have a same luminance as the native color gamut. One or more colors included in the native color gamut may be mapped via a digital technique (e.g., using a DPU or other processor) to the reduced color gamut. The mapping may be configured to provide a threshold level of color accuracy in the reduced color gamut.

Provided is a display system, including one or more display screens (11, 12), a plurality of source drivers (13, 14), a timing controller (15) and a graphics processing unit (16). Each display screen (11, 12) is connected to one or more source drivers (13, 14). The graphic processing unit (16) is connected to the timing controller (15). The timing controller (15) is connected to the plurality of source drivers (13, 14). The graphic processing unit (16) is configured to determine each image of the one or more display screens (11, 12) and transmit the image to the timing controller (15). The timing controller (15) is configured to divide each image of the one or more display screens (11, 12) into a plurality of sub-images in a P2P transmission manner, and output in parallel the corresponding sub-images to the plurality of source drivers (13, 14).

A display system includes a source device and a sink device. The source device generates red-color display data, green-color display data, and blue-color display data and transmits first packet data including the red-color display data and a red-color display reference gamma-set, second packet data including the green-color display data and a green-color display reference gamma-set, and third packet data including the blue-color display data and a blue-color display reference gamma-set. The sink device converts the red-color display data, the green-color display data, and the blue-color display data into red-color display data-voltages, green-color display data-voltages, and blue-color display data-voltages and displays an image using the red-color display data-voltages, the green-color display data-voltages, and the blue-color display data-voltages. The sink device generates red-color display gamma-voltages, green-color display gamma-voltages, and blue-color display gamma-voltages based on the red-color display reference gamma-set, the green-color display reference gamma-set, and the blue-color display reference gamma-set, respectively.

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

An display driver and an operating method of the display driver are provided. The display driver includes a receiver comprising a bias current control circuit. The receiver receives image data. The bias current control circuit computes a data bit rate of the image data, and adjusting a bias current of the receiver according to the data bit rate. The operating method is adapted to the display driver.

The present invention provides a method of display control for a display driver circuit operated in a video mode. The method includes steps of: driving a display panel to display a plurality of image frames having a plurality of active frames and a plurality of blanking frames, and determining whether to transmit a notification to an application processor to indicate whether the application processor needs to output image data according to whether an incoming image frame among the plurality of image frames is one of the plurality of active frames or one of the plurality of blanking frames. Wherein, the display panel is refreshed in each of the plurality of active frames, and not refreshed in each of the plurality of blanking frames.