Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
[PRJ4-4L]A Novel Method to Analyze Speckle Contrast and Related Issues of Laser Projection Display Systems
*Xue Li1, Masatake Hayashi1, Nobuo Naito1, Ke Yan2, Jie Dai3, Yoshihiro Oshima1(1. TVS REGZA Corporation (Japan), 2. Hisense Laser Display Co., Ltd. (China), 3. Qingdao HiFeel Innovative Materials Co., Ltd. (China))
Keywords:
speckle contrast,coherence,integration,sparkle contrast,nonuniformity
Laser projection displays are experiencing rapid expansion. However, one issue that deserves consideration is speckle noise. In this study, we propose a novel method for a more precise analysis: the inclusion of background measurements using non-coherent environmental light. The findings reveal that the measured speckle contrast occasionally includes something other than speckle. In such case, it was found to be the nonuniformity of the screen.