US 11,982,807 B1
Picture generating apparatus comprising a funnel reflector having a double funnel structure for use in a head-up display
Min Ho Shin, Yongin-si (KR)
Assigned to HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed by HYUNDAI MOBIS CO., LTD., Seoul (KR)
Filed on Feb. 28, 2023, as Appl. No. 18/175,691.
Claims priority of application No. 10-2022-0187661 (KR), filed on Dec. 28, 2022.
Int. Cl. G02B 27/01 (2006.01); B60K 35/00 (2006.01); B60K 35/23 (2024.01); G02F 1/1335 (2006.01)
CPC G02B 27/0101 (2013.01) [B60K 35/00 (2013.01); G02B 27/0149 (2013.01); G02F 1/133504 (2013.01); G02F 1/133607 (2021.01); B60K 35/23 (2024.01); G02B 2027/0141 (2013.01); G02B 2027/0161 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for generating pictures for a head-up display, the apparatus comprising:
a printed circuit board (PCB) including a plurality of light sources configured to emit light;
a liquid crystal display (LCD) disposed in front of the plurality of light sources and configured to form a display image based on the light emitted from the plurality of light sources;
a funnel reflector including an internal optical surface having a double funnel structure and disposed between the PCB and the LCD to guide the light toward the LCD;
a housing having a space at which the funnel reflector is disposed and including (1) an upper surface, (2) an LCD seat disposed on the upper surface of the housing and accommodating the LCD and (3) a diffuser seat disposed at a same angle as the LCD seat on the upper surface of the housing; and
a diffuser accommodated at the diffuser seat,
wherein the funnel reflector includes a tapered top surface disposed at an angle corresponding to that of the diffuser seat to maintain a uniform distance from the diffuser.