An apparatus for generating pictures for a head-up display includes: a printed circuit board (PCB) including a plurality of light sources; a liquid crystal display (LCD) disposed in front of the plurality of light sources and forming display images based on light emitted from the plurality of light sources; a funnel reflector including an internal optical surface including a double funnel structure and disposed between the PCB and the LCD to guide the light to the LCD; a housing including a space for accommodating the funnel reflector and including, on an upper surface thereof, an LCD seat for accommodating the LCD and a diffuser seat formed at the same angle as the LCD seat; and a diffuser accommodated in the diffuser seat, wherein the funnel reflector includes a tapered top surface and the top surface is formed at an angle corresponding to an angle of the diffuser seat to maintain a uniform distance from the diffuser.
Picture generating apparatus comprising a funnel reflector having a double funnel structure for use in a head-up display
2024-05-14
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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