A display device includes light sources 30A to 30C that emit light, a display panel that displays an image, and a light guide panel 34 that guides the light emitted from the light sources 30A to 30C to the display panel. The light guide panel 34 includes an incident surface 34a facing the light sources 30A to 30C, an emission surface 34b facing the display panel, a first reflective surface 34c facing the incident surface 34a, and a second reflective surface facing the emission surface 34b. The first reflective surface 34c has a concave shape that reflects light so that the reflected light becomes closer to parallel light when viewed in a facing direction of the display panel and the light guide panel in the light guide panel 34, is tilted at an angle larger than 0 degrees with respect to the incident surface, and intersects the second reflective surface at an angle smaller than 90 degrees.
DISPLAY DEVICE, HEAD-UP DISPLAY, MOVING BODY, AND LIGHT GUIDE PANEL
ANZEIGEVORRICHTUNG, HEAD-UP-ANZEIGE, BEWEGLICHER KÖRPER UND LICHTLEITERPLATTE
DISPOSITIF D'AFFICHAGE, AFFICHAGE TÊTE HAUTE, CORPS MOBILE ET PANNEAU DE GUIDAGE DE LUMIÈRE
2022-03-30
Patent
Electronic Resource
English
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING,... , Vorrichtungen oder Anordnungen, deren optische Arbeitsweise durch Änderung der optischen Eigenschaften des Mediums der Vorrichtungen oder Anordnungen geändert wird zum Steuern der Intensität, Farbe, Phase, Polarisation oder der Richtung von... |
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