Method for operating a display and operating device, display and operating device, and motor vehicle

A method for operating a display and operating device, the method comprising:

• specifying a graphical configuration of a display element to be displayed by the display and operating device;
• based on the specified graphical configuration, ascertaining at least one light wave parameter for a respective light wave of a group of light waves, each of the light wave parameters describing a frequency, an amplitude, or a wavelength of the respective light wave, and a totality of the light wave parameters describing an interference pattern which describes an at least partial superposition of the light waves for generating an image representation of the display element;
• generating an interference pattern signal which describes the totality of the ascertained light wave parameters;
• transferring, from a control device of the display and operating device, the generated interference pattern signal to an interference output device;
• based on the transferred interference pattern signal, the interference output device generating and outputting the group of light waves and setting the respective at least one light wave parameter for each of the light waves among the group of light waves so as to generate a light wave interference and output a real image of the display element;
• receiving an operating signal from an operating device, the operating signal describing an operating action by a user with respect to the real image of the display element;
• based on the received operating signal, establishing a change in a relative position and/or a position of the real image of the display element, as described by the operating action;
• and
• based on the established change in the relative position and/or the position, adapting at least one light wave parameter for at least one light wave to change the interference pattern.

A control device for a display and operating device, the control device comprising:

• a memory to store instructions;
• and
• a processor to execute the instructions stored in the memory to:
• specify a graphical configuration of a display element to be displayed by the display and operating device,
• based on the specified graphical configuration, ascertain at least one light wave parameter for a respective light wave of a group of light waves, each of the light wave parameters describing a frequency, an amplitude, or a wavelength of the respective light wave, and a totality of the light wave parameters describing an interference pattern which describes an at least partial superposition of the light waves for generating an image representation of the display element,
• generate an interference pattern signal which describes the totality of the ascertained light wave parameters,
• transfer the generated interference pattern signal to an interference output device to cause a real image of the display element to be output,
• receive an operating signal from an operating device, the operating signal describing an operating action by a user with respect to the real image of the display element,
• based on the received operating signal, establish a change in a relative position and/or a position of the real image of the display element, as described by the operating action, and
• based on the established change in the relative position and/or the position, adapt at least one light wave parameter for at least one light wave to change the interference pattern.

A display and operating device, comprising:

• an interference output device configured to, based on an interference pattern signal, generate and output a group of light waves and set a respective at least one light wave parameter for each of the light waves among the group of light waves, so as to generate a light wave interference and output a real image of a display element;
• and
• a control device configured to:
• specify a graphical configuration of the display element to be displayed,
• based on the specified graphical configuration, ascertain at least one light wave parameter for a respective light wave of the group of light waves, each of the light wave parameters describing a frequency, an amplitude, or a wavelength of the respective light wave, and a totality of the light wave parameters describing an interference pattern which describes an at least partial superposition of the light waves for generating an image representation of the display element,
• generate the interference pattern signal which describes the totality of the ascertained light wave parameters,
• transfer the generated interference pattern signal to the interference output device,
• receive an operating signal from an operating device, the operating signal describing an operating action by a user with respect to the real image of the display element,
• based on the received operating signal, establish a change in a relative position and/or a position of the real image of the display element, as described by the operating action, and
• based on the established change in the relative position and/or the position, adapt at least one light wave parameter for at least one light wave to change the interference pattern.