Video display method
A technology of image display and display part, applied in the direction of digital output to display device, image communication, static indicator, etc.
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Embodiment approach 1
[0129] figure 1 It is a schematic diagram showing an example of a video display system capable of visible light communication according to the first embodiment.
[0130] The display device 100 is an image display device, such as a liquid crystal display device, and can display images on the display unit 110 . In addition, in the video displayed on the display unit 110 , a visible light communication signal representing information related to the displayed video is inserted or superimposed. The receiving device 200 captures the video displayed on the display unit 110 , and receives the visible light communication signal transmitted by displaying on the display unit 110 of the display device 100 . The receiving device 200 is, for example, a smartphone incorporating a sequential exposure type image sensor. Thereby, the user can acquire information and the like related to the video displayed on the display unit 110 .
[0131] In addition, in Embodiment 1, a liquid crystal displ...
Embodiment approach 2
[0421] Embodiment 2 will be described below.
[0422] (Observation of brightness of light emitting part)
[0423] An imaging method has been proposed in which, when capturing a single image, instead of exposing all imaging elements at the same timing, exposure starts / stops at different timings for each imaging element. Figure 50 This is an example of the case where the imaging elements arranged in one row are exposed at the same time, and the exposure start timings are shifted in the order of the closer rows to take images. Here, it is called an exposure line of an imaging element exposed at the same time, and a line of pixels on an image corresponding to the imaging element is called a bright line.
[0424] When using this imaging method to image a flickering light source on the entire surface of the imaging element, as in Figure 51 In this way, bright lines (lines of brightness and darkness of pixel values) along the exposure line appear on the captured image. By recogn...
Embodiment approach 3
[0452] (Send an identification code indicating the order of the sending method)
[0453] It is described that when a display device acquires a communication signal from the outside such as HDMI (registered trademark), first arrange an identification code indicating that communication is performed in a coded image, but by creating a coded image that also includes the orientation and size of the coded image, and the order of its display The identification code information and the output of the coded image based on the identification code information can realize an optimal display state of the coded image with shorter communication traffic.
[0454] In addition, the identification code preferably includes an identification code indicating that the size of the data is 128 bits or less together with the identification code indicating the transmission of the communication signal.
[0455] Furthermore, when not divided into a plurality of signal blocks, it is preferable to include an i...
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