Indicator apparatus and method for producing same

A display device for guiding occupants within an interior accommodated by an aircraft fuselage, comprising:

• a carrier unit that is configured to be secured to a wall section of the interior;
• at least one display disposed in the carrier unit, wherein the at least one display comprises:
• an integrated circuit layer on which circuits needed for operation of the at least one display are in integrated form, wherein the integrated circuit layer is in one-part form;
• multiple display elements that are each configured to impart different visual information to the occupants of the interior when in operation, wherein each of the multiple display elements comprises an illuminant disposed on the integrated circuit layer and connected to the circuits of the integrated circuit layer;
• and
• a power supply connected to the circuits of the integrated circuit layer in communication with each of the multiple display elements, wherein the power supply comprises:
• at least one composite structure battery of layered structure which is formed on the integrated circuit layer, and
• a voltage controller disposed on the integrated circuit layer in communication with the at least one composite structure battery and the circuits of the integrated circuit layer, wherein the voltage controller is configured for selectively driving each illuminant of the multiple display elements;
• and
• an interface connected to the integrated circuit layer, the interface configured to establish a data connection to an on-board network in the aircraft fuselage for receiving signals to selectively and independently change an illumination state of each of the multiple display elements.