Study on projection screen and speckle contrast in laser display technology

Yuwei Fang; Linxiao Deng; Chun Gu; Lixin Xu

doi:10.1117/12.2575020

5 November 2020 Study on projection screen and speckle contrast in laser display technology

Yuwei Fang, Linxiao Deng, Chun Gu, Lixin Xu

Proceedings Volume 11565, AOPC 2020: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics; 1156504 (2020) https://doi.org/10.1117/12.2575020
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

We have promoted and demonstrated a relationship between speckle contrast and the fluctuation of the screen surface in Laser Display Technology (LDT). Based on the speckle theory, we analyzed the speckle characteristics of diffuse scattering screen, and obtained the relationship between speckle contrast C and the standard deviation of surface fluctuation height σ_h. Meanwhile, we used the precision probe surface profilometer to measure the height and morphology of 12 kinds of screens. Finally, we built a speckle testing platform to simulate human eye, and measured the speckle contrast of 12 kinds of screens. By analyzing the gain and speckle contrast parameters of glass bead screen and metal screen, we could conclude that glass bead screen was more suitable for LDT.

Citation Download Citation

Yuwei Fang, Linxiao Deng, Chun Gu, and Lixin Xu "Study on projection screen and speckle contrast in laser display technology", Proc. SPIE 11565, AOPC 2020: Display Technology; Photonic MEMS, THz MEMS, and Metamaterials; and AI in Optics and Photonics, 1156504 (5 November 2020); https://doi.org/10.1117/12.2575020

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