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IEC 62906-5-3
Edition 1.0 2021-02
INTERNATIONAL
STANDARD
colour
inside
Laser display devices –
Part 5-3: Measuring methods of image quality for laser projection display
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IEC 62906-5-3
Edition 1.0 2021-02
INTERNATIONAL
STANDARD
colour
inside
Laser display devices –
Part 5-3: Measuring methods of image quality for laser projection display
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.260 ISBN 978-2-8322-9316-4
– 2 – IEC 62906-5-3:2021 © IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms . 7
4 Standard measuring conditions . 7
4.1 General . 7
4.2 Environmental conditions . 7
4.3 Power supply . 7
4.4 Warm-up time . 7
4.5 Dark ambient conditions . 7
4.6 Measuring equipment . 7
5 Installation and adjustment of the DUT . 8
5.1 Placement of the projection device and screen . 8
5.2 Focusing and alignment of the LPD . 8
6 Test patterns . 10
6.1 Full screen patterns . 10
6.2 Checkerboard patterns . 10
7 Measuring methods . 10
7.1 Luminance uniformity . 10
7.1.1 Purpose . 10
7.1.2 Measuring conditions . 11
7.1.3 Patterns . 11
7.1.4 Measuring method . 11
7.1.5 Report . 12
7.2 Contrast ratio uniformity . 12
7.2.1 Purpose . 12
7.2.2 Measuring conditions . 12
7.2.3 Patterns . 12
7.2.4 Measuring method . 12
7.2.5 Report . 13
7.3 Viewing direction . 13
7.3.1 Purpose . 13
7.3.2 Measuring conditions . 13
7.3.3 Patterns . 14
7.3.4 Measuring method . 14
7.4 Chromaticity uniformity . 14
7.4.1 Purpose . 14
7.4.2 Measuring conditions . 14
7.4.3 Patterns . 15
7.4.4 Measuring method . 15
7.4.5 Report . 15
7.5 Image resolution . 15
7.5.1 Purpose . 15
7.5.2 Measuring conditions . 15
7.5.3 Measuring method . 16
7.5.4 Calculation . 16
7.5.5 Report . 17
Bibliography . 18
Figure 1 – Example of an image pattern with width W and height H . 9
Figure 2 – Example of DUT setup . 9
Figure 3 – Full screen patterns . 10
Figure 4 – Examples of checkerboard patterns . 10
Figure 5 – Measurement points . 11
Figure 6 – Set-up for viewing direction measurement . 14
Figure 7 – Example of contrast modulation measurement . 17
– 4 – IEC 62906-5-3:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LASER DISPLAY DEVICES –
Part 5-3: Measuring methods of image quality
for laser projection displays
FOREWORD
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IEC 62906-5-3 has been prepared by IEC technical committee 110: Electronic displays. It is an
International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
110/1269/FDIS 110/1285/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at /members_experts/refdocs. The main document types developed by IEC are
described in greater detail at /standardsdev/publications.
A list of all parts in the IEC 62906 series, published under the general title Laser display devices,
can be found on the IEC website.
The committee has decided that the
...