US 11,835,811 B1
Hybrid thermal management for liquid crystal on silicon head-up displays
Chih-hung Yen, Bloomfield Hills, MI (US); Bahram Khalighi, Holladay, UT (US); Taeyoung Han, Troy, MI (US); Shailendra Kaushik, Novi, MI (US); Thomas A. Seder, Fraser, MI (US); and Kuo-huey Chen, Troy, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Jul. 27, 2022, as Appl. No. 17/874,413.
Int. Cl. G02F 1/1333 (2006.01); G02B 27/01 (2006.01); G02F 1/1362 (2006.01); B60K 35/00 (2006.01); H05K 7/20 (2006.01)
CPC G02F 1/133385 (2013.01) [B60K 35/00 (2013.01); G02B 27/0101 (2013.01); G02F 1/136277 (2013.01); H05K 7/20963 (2013.01); B60K 2370/1529 (2019.05); B60K 2370/33 (2019.05); H05K 7/2099 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A thermal management system for a liquid crystal on silicon device, the thermal management system comprising:
a liquid crystal on silicon layer;
a phase change material on a surface of the liquid crystal on silicon layer;
a thermoelectric device in direct contact with the phase change material;
a heat sink on a surface of the thermoelectric device; and
a controller configured to adjust a thermoelectric device current of the thermoelectric device responsive to a temperature of the liquid crystal on silicon layer.