| 摘要 |
According to one embodiment, a display has an indicator, an information extractor, and an indicator controller. The indicator is configured to irradiate first visible light indicative of an operation status of the display The information extractor is configured to extract at least a video signal and additional information from an input signal. The indicator controller is configured to modulate the first visible light with a frequency higher than a frame rate of the video signal according to the additional information. |
