US 11,948,531 B2
Light source device and display device alternately emitting light beams
Tzung-Te Chen, Taipei (TW); Hsin-Yun Tsai, Hsinchu County (TW); Shih-Yi Wen, Hsinchu (TW); and Chia-Fen Hsieh, Hsinchu County (TW)
Assigned to Industrial Technology Research Institute, Hsinchu (TW)
Filed by Industrial Technology Research Institute, Hsinchu (TW)
Filed on Dec. 30, 2021, as Appl. No. 17/565,495.
Claims priority of provisional application 63/212,724, filed on Jun. 21, 2021.
Claims priority of application No. 110148157 (TW), filed on Dec. 22, 2021.
Prior Publication US 2022/0406271 A1, Dec. 22, 2022
Int. Cl. G09G 5/10 (2006.01); G09G 5/02 (2006.01); H04R 3/00 (2006.01); A61N 5/06 (2006.01)
CPC G09G 5/026 (2013.01) [H04R 3/00 (2013.01); A61N 5/0622 (2013.01); A61N 2005/0663 (2013.01); G09G 2380/08 (2013.01); H04R 2499/15 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A light source device, comprising:
a first light source, providing a first light beam in a first time period of a first period;
a second light source, providing a second light beam in a second time period of the first period;
a third light source, providing a third light beam in a third time period of a second period; and
a fourth light source, providing a fourth light beam in a fourth time period of the second period, wherein
the first light beam and the second light beam are emitted alternately in the first period, and a color rendering index of mixed light of the first light beam and the second light beam is greater than or equal to 85,
the third light beam and the fourth light beam are emitted alternately in the second period.