HDMI transmission of uncompressed image data, on which dynamic range processing is performed, is performed from an HDMI source device and a display in appropriate luminance is performed in an HDMI sink device. When HDMI input switching is performed, a television receiver 13 transmits transmission request information to an HDMI source device in a destination of the input switching and acquires dynamic range conversion definition information of uncompressed image data at intended timing. Also, when it is possible to acquire the dynamic range conversion definition information of the uncompressed image data, the television receiver 13 minimizes transmission of the dynamic range conversion definition information from a BD recorder 11 by sending reception recognition information back.

A display gradation number acquisition unit acquires the number of display gradations of the video data during each horizontal scanning period based on a gradation histogram. A first display gradation holding period value generator generates a first display gradation holding period value based on a gradation value difference. A second display gradation holding period value generator generates a second display gradation holding period value based on the number of pixels for each display gradation. A holding period provisional value generator selects a display gradation holding period value having a larger value to generate a holding period provisional value. A holding period total value generator generates a holding period total value that is a sum of the holding period provisional value during each horizontal scanning period. A holding period optimum value generator generates a holding period optimum value of each display gradation.

The present disclosure provides a method and device for switching a display channel, a display driving device and a display device. The method includes: sending a first switching signal to a write controller of a current display channel when a switching instruction for switching from the current display channel to a target display channel is received; acquiring a frame address in which final write operation of data is completed, and taking the frame address as a first address and a next frame address as a second address; sending a second switching signal to a write controller of the target display channel; and sending a third switching signal to a read controller.

A display device includes a display panel, a frame memory, a display control circuit that performs a predetermined process on a first video signal using the frame memory and outputs an obtained second video signal, and a panel drive circuit that drives the display panel based on the second video signal. The display control circuit checks whether the frame memory is normal or abnormal, by storing partial video data included in the first video signal, writing to the frame memory, video data obtained by replacing the partial video data with first test data, and comparing with the first test data, second test data included in the video data read from the frame memory.

A low power architecture for mobile displays includes a display, a low voltage integrated circuit configured to: receive a high speed input signal; process the input signal; and output uncompressed pixel data based on the processed input signal; and a high voltage integrated circuit configured to drive pixels in the display based on the uncompressed pixel data; wherein the low voltage integrated circuit is configured to provides the uncompressed pixel data to the high voltage integrated circuit via a timing-to-driver (T2D) interface.

A display gradation number acquisition unit acquires the number of display gradations of the video data during each horizontal scanning period based on a gradation histogram. A first display gradation holding period value generator generates a first display gradation holding period value based on a gradation value difference. A second display gradation holding period value generator generates a second display gradation holding period value based on the number of pixels for each display gradation. A holding period provisional value generator selects a display gradation holding period value having a larger value to generate a holding period provisional value. A holding period total value generator generates a holding period total value that is a sum of the holding period provisional value during each horizontal scanning period. A holding period optimum value generator generates a holding period optimum value of each display gradation.

Embodiments of the present disclosure disclose a method and device for reducing bandwidth consumption of a display controller. The method includes: whether image data of a current User Interface (UI) frame to be displayed is the same as image data of a previous UI frame is judged; when the image data of the current UI frame to be displayed is the same as the image data of the previous UI frame, image data in a nontransparent region except a transparent region of the previous UI frame is read; and when the image data of the current UI frame to be displayed is different from the image data of the previous UI frame, a transparent region of the current UI frame to be displayed is determined according to a preset strategy. Embodiments of the present disclosure further disclose a display controller and a computer storage medium.

A patient monitoring system includes: a display configured to display, only for a first period, information including changes over time in physiological information acquired from at least one patient; a first storage configured to store, only for a second period longer than the first period, data corresponding to the information displayed on the display; a second storage having a storage capacity different from a storage capacity of the first storage; a user interface configured to receive a data preservation instruction from a user; and one or more processors configured to store in the second storage at least a part of the data that has been in the first storage before the user interface receives the data preservation instruction.

Embodiments of the present disclosure disclose a method and device for reducing bandwidth consumption of a display controller. The method includes: whether image data of a current User Interface (UI) frame to be displayed is the same as image data of a previous UI frame is judged; when the image data of the current UI frame to be displayed is the same as the image data of the previous UI frame, image data in a nontransparent region except a transparent region of the previous UI frame is read; and when the image data of the current UI frame to be displayed is different from the image data of the previous UI frame, a transparent region of the current UI frame to be displayed is determined according to a preset strategy. Embodiments of the present disclosure further disclose a display controller and a computer storage medium.

A pixel circuit, a display panel, a display device and a driving method thereof are provided. The display panel includes a silicon substrate and a plurality of display units and a plurality of storage units fabricated on the silicon substrate. The plurality of storage units correspond to the plurality of display units one to one, and the plurality of storage units are respectively configured to receive and store display data of the plurality of display units corresponding to the plurality of storage units.