Provided is a heads-up display device that stably achieves a low brightness display in which the display does not feel too bright in a dark environment at night, which further does not give a vehicle driver discomfort with continuous changes in brightness, and which has excellent white balance in the entire range of display brightness. A heads-up display device (1) is provided with an external light illuminance detection section (70) that detects the illuminance of external light and adjusts the display brightness (B) for display of images, which are displayed, on the basis of external light illuminance (P) measured by the external light illuminance detection section (70). The heads-up display device (1) is further provided with a display brightness adjusting means (81a) that adjusts the display brightness (B) of the display image to a low level when a display image is displayed in a low brightness region that is lower than a prescribed brightness by controlling the polarization angle of a polarized light control element (11) and adjusting the transmittance (Z) for laser light (R, G, B) in a polarized light section (14).
HEADS-UP DISPLAY DEVICE
FRONTSICHT-ANZEIGEVORRICHTUNG
DISPOSITIF D'AFFICHAGE TÊTE HAUTE
30.10.2019
Patent
Elektronische Ressource
Englisch
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 / 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... / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION |