A vehicle display apparatus includes an HUD that projects a display image formed at a first conjugate position to a projection member so as to place the display image as a virtual image at a second conjugate position. The first conjugate position is conjugate to a viewing region inside a vehicle through the projection member, and the second conjugate position is conjugate with an external sensor through the projection member. An HCU increases display luminance of a selected image selected from the display image to a fail-safe luminance by controlling a virtual image display state of the display image when a fail condition is met. The fail condition is that the current brightness detected by the external sensor exceeds an upper limit of an allowable range.
Vehicle display apparatus
2020-08-25
Patent
Elektronische Ressource
Englisch
IPC: | 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS |