A display device and a vehicle head-up display apparatus of the present disclosure include a substrate, light source devices, a transmission-type display panel, and an illumination optical system. The light source devices are disposed on the substrate. The illumination optical system guides illumination light from the light source devices to the display panel. The illumination optical system includes a first reflector, a quarter-wave plate, and a reflective polarizer. The first reflector is disposed at a different position on the substrate than the light source devices. The quarter-wave plate is disposed between the first reflector and the display panel. The reflective polarizer is disposed between the quarter-wave plate and the display panel.
DISPLAY DEVICE AND VEHICLE HEAD-UP DISPLAY APPARATUS
2019-05-02
Patent
Elektronische Ressource
Englisch
IPC: | G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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