The invention pertains to a display apparatus comprising attachment means for attaching said display apparatus to a window of a passenger vehicle; first light energy conversion means (710a), arranged to convert, when in use, daylight into a first amount of electrical energy; second light energy conversion means (710b), arranged to convert, when in use, ambient light inside said passenger vehicle into a second amount of electrical energy; an energy storage (720) operatively connected to said first light energy conversion means and said second light energy conversion means to store at least part of said first amount of electrical energy and at least part of said second amount of electrical energy; a wireless communication interface (760; 795; 770) for receiving information to be displayed; and display means (740; 750) for displaying at least part of said received information; and an activation controller (730) arranged to draw energy from said energy storage (720) and responsive to a wirelessly transmitted activation signal; wherein said communication interface (760; 795; 770) and said display means (740; 750) are arranged to draw energy from said energy storage (720) and to be activated and deactivated under the control of said activation controller (730).
WIRELESS SEAT RESERVATION DISPLAY APPARATUS
DRAHTLOSE SITZPLATZRESERVIERUNGSANZEIGEVORRICHTUNG
APPAREIL D'AFFICHAGE DE RÉSERVATION DE SIÈGE SANS FIL
2018-10-31
Patent
Elektronische Ressource
Englisch