IEC 62629-13-1:2017

IEC 62629-13-1 ®
Edition 1.0 2017-10
INTERNATIONAL
STANDARD
colour
inside
3D display devices –
Part 13-1: Visual inspection methods for stereoscopic displays using glasses –
Ghost image
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IEC 62629-13-1 ®
Edition 1.0 2017-10
INTERNATIONAL
STANDARD
colour
inside
3D display devices –
Part 13-1: Visual inspection methods for stereoscopic displays using glasses –

Ghost image
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.120; 31.260 ISBN 978-2-8322-4867-6

– 2 – IEC 62629-13-1:2017 © IEC 2017
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Standard visual inspection conditions . 6
4.1 Environmental conditions . 6
4.2 Setup conditions . 7
4.2.1 Standard visual inspection distance and standard observing point . 7
4.2.2 Setup conditions of stereoscopic display . 7
4.2.3 Warm-up conditions of display modules and glasses . 7
4.3 Lighting conditions . 7
4.4 Inspector conditions . 8
4.5 Input signals . 8
4.5.1 Signal format and field frequency of input video signal . 8
4.5.2 Input signal pattern . 8
5 Visual inspection methods . 12
5.1 Purpose . 12
5.2 Visual inspection equipment. 12
5.3 Visual inspection conditions . 12
5.4 Visual inspection procedure . 13
5.4.1 Warm-up . 13
5.4.2 Inspection of 2D artefact . 13
5.4.3 Inspection of 3D ghost . 13
5.5 Report. 15
Annex A (informative) Measurement with two-dimensional light measuring device
(LMD) . 16
A.1 General . 16
A.2 Measuring conditions . 16
A.3 Measuring layout . 16
A.4 Measuring method . 16
A.5 Report. 17
Annex B (informative) Signal format . 18
Bibliography . 19

Figure 1 – Top view of standard visual inspection layout . 7
Figure 2 – Nine positions for the box patterns . 8
Figure 3 – Example of box pattern at G and G . 9
1 2
Figure 4 – Example of input signal for the visual inspection of ghost at G and G . 11
2 1
Figure 5 – Example of input signal for 2D image comparison . 12
Figure 6 – Example of ghost artefact . 13
Figure 7 – Comparison of ghost artefact and bar of the different grey levels G in the
b
box pattern . 14
Figure A.1 – Top view of standard measuring layout using a two-dimensional LMD . 16
Figure B.1 – Signal formats for stereoscopic display using glasses . 18

Table 1 – Value of grey levels G and G for an 8-bit grey scale display . 10
1 2
Table 2 – Example of visual inspection report at nine positions for grey levels G =
255 and G = 0 . 15
Table A.1 – Example of measurement report, using the input signal of nine-box
pattern, grey levels G = 255 and G = 0 . 17
1 2
– 4 – IEC 62629-13-1:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
3D DISPLAY DEVICES –
Part 13-1: Visual inspection methods for stereoscopic displays
using glasses – Ghost image
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62629-13-1 has been prepared by IEC technical committee 110:
Electronic display devices.
The text of this International Standard is based on the following documents:
FDIS Report on voting
110/896/FDIS 110/912/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 62629 series, published under the general title 3D display devices,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 6 – IEC 62629-13-1:2017 © IEC 2017
3D DISPLAY DEVICES –
Part 13-1: Visual inspection methods for stereoscopic displays
using glasses – Ghost image
1 Scope
This part of IEC 62629 specifies the visual inspection methods of ghost image. This document
is applicable to stereoscopic displays using glasses.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 61747-30-1:2012, Liquid crystal display devices – Part 30-1: Measuring methods for liquid
crystal displays modules – Transmissive type
IEC 61988-2-1:2012, Plasma display panels – Part 2-1: Measuring methods – Optical and
optoelectrical
IEC 62341-6-3:2012, Organic light emitting diode (OLED) displays – Part 6-3: Measuring
methods of image quality
IEC 62629-1-2, 3D display devices – Part 1-2: Terminology and letter symbols
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62629-1-2 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
ghost image
image artefact that the observer perceives due to the incomplete separation of the left and the
right images occurring in the stereoscopic display using glasses
4 Standard visual inspection conditions
4.1 Environmental conditions
Visual inspection shall be carried out under the standard environmental conditions as follows:
– temperature: 25 °C ± 5 °C,
– relative humidity: 45 % to 75 %,
– pressure: 86 kPa to 106kPa.
When different environmental conditions are used, these shall be noted in the report.
4.2 Setup conditions
4.2.1 Standard visual inspection distance and standard observing point
The standard visual inspection distance shall be defined in the relevant specification by the
manufacturer. The standard observing point shall be at the standard visual inspection
distance from the screen on the centre line which is perpendicular to the screen and through
the screen centre (see Figure 1). The standard observing point shall not change when the
inspector carries out inspection for the various positions of the screen.
If the standard visual inspection distance is not available, the distance of 3V shall be used or
the distance used shall be reported.
Measuring distance
Stereoscopic
Inspector
display
Line through the centre of the
stereoscopic display
Eyeglass
Figure 1 – Top view of standard visual inspection layout
4.2.2 Setup conditions of stereoscopic display
The 2D-3D mode selection of the stereoscopic display, if it exists, shall be set to stereo mode,
3D mode or related mode. When detailed mode settings are defined in the relevant
specification, the mode settings shall be applied. Display setup such as gamma curve setting
shall not be changed during the experiment.
4.2.3 Warm-up conditions of display modules and glasses
The display module and glasses for the visual inspection shall be warmed up to stabilize their
characteristics. The warm-up conditions for the inspected display module shall comply with
the conditions defined in each relevant specification of each display module, i.e. LCD, PDP,
OLED, etc. (see IEC 61747-30-1:2012, 6.12, IEC 61988-2-1:2012, Clause 5 and
IEC 62341-6-3:2012, Clause 5). The warm-up conditions of the glasses shall be defined in the
relevant specification, if warm-up is needed.
4.3 Lighting conditions
Dark-room conditions shall be used as lighting conditions.
Illuminance shall be measured on nine positions of the screen of the stereoscopic display as
shown in Figure 2. Illuminance shall be less than 1 lx.

– 8 – IEC 62629-13-1:2017 © IEC 2017
H
H/10
4H/10
H/2
P P P
1 5 2 V/10
V
P
P 0 P
V/2
P P
4 3
P
Figure 2 – Nine positions for the box patterns
4.4 Inspector conditions
The inspector shall have normal colou
...