DISPLAY ELEMENT WITH RGB LED DIODES DESIGNED TO BE OVERLAID BY ANOTHER DISPLAY DURING OPTICAL SENSING; RGB LED DIODE FOR USE IN SAID DISPLAY ELEMENT

摘要

Display element (1) has RGB LED diodes (2) evenly distributed on the outer surface, whereby the stable sources of monochromatic optical radiation with the wavelength beyond 680 nm, directionally oriented in the same way as RGB LED diodes (2), are placed between or next to the RGB LED diodes (2). The source of the stable monochromatic optical radiation can be infrared LED diode (3). RGB LED display element (1) shows static and/or dynamic image visible on the spot, whereby the image is adjusted for the covering by another display during its optical sensing and subsequent processing. The surface for the covering by another image is identified according to monochromatically shining surface invisible to the human eye but identifiable by the camera. In an advantageous arrangement the RGB LED diode (2) is used, which has an emitter of the infrared radiation inserted in its shell. The display element (1) is advantageously used during television broadcasts, where the advertisement seen on the spot is substituted by the advertisement appropriate for the various sorts of viewers, for example based on principle of territory, language or interest.