6.3: Measurement of Image Quality for Laser Projection Displays based on the Audience Viewing

The laser display system consists of a laser projector and a screen, and its image quality depends not only on the output image of the projector. Still, it is also closely related to the screen's performance and the installation geometries, including distance, projection ratio, inclination angl...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2021-08, Vol.52 (S2), p.119-122
Main Authors: Wang, Jianping, Mou, Xi, Wen, Chunao
Format: Article
Language:English
Subjects:
Audience viewing
Display devices
Fresnel lens
Fresnel lenses
IEC
Image quality
Inclination angle
International Standards
Laser displays
Lasers
LMD
Measurement methods
Projection
Projector
Screen uniformity
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Description
Summary:The laser display system consists of a laser projector and a screen, and its image quality depends not only on the output image of the projector. Still, it is also closely related to the screen's performance and the installation geometries, including distance, projection ratio, inclination angle, etc. Recently, IEC TC110 Electronic Displays has published the international standard of Measuring Methods of Image Quality for Laser Projection Displays (IEC 62906‐5‐3:2021). This IS contains the requirements of measuring environmental conditions, optical measuring equipment, installation and alignment of the screen, test patterns, measurement point locations, and procedures. This paper will introduce the practical implementation methods of the measurement methods involved in the standard. At the same time, the measurement method based on audience viewpoints is studied, so the measurement is more in line with the actual laser display applications. The results of both methods were compared, especially for the Fresnel lens screen.
ISSN:0097-966X
2168-0159
DOI:10.1002/sdtp.15035