IEC 62341-6-3:2012

IEC 62341-6-3 ®
Edition 1.0 2012-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) displays –
Part 6-3: Measuring methods of image quality

Afficheurs à diodes électroluminescentes organiques (OLED) –
Partie 6-3: Méthodes de mesure de la qualité des images

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IEC 62341-6-3 ®
Edition 1.0 2012-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Organic light emitting diode (OLED) displays –

Part 6-3: Measuring methods of image quality

Afficheurs à diodes électroluminescentes organiques (OLED) –

Partie 6-3: Méthodes de mesure de la qualité des images

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 31.260 ISBN 978-2-83220-294-4

– 2 – 62341-6-3 © IEC:2012
CONTENTS
FOREWORD . 4

1 Scope . 6

2 Normative references . 6

3 Terms, definitions, symbols, units and abbreviations . 6

3.1 Terms, definitions, symbols and units . 6

3.2 Abbreviations . 6

4 Standard measuring equipment and coordinate system . 7
4.1 Light measuring devices . 7
4.2 Viewing direction coordinate system . 7
5 Measuring conditions . 8
5.1 Standard measuring environmental conditions . 8
5.2 Power supply . 9
5.3 Warm-up time . 9
5.4 Standard measuring dark-room conditions . 9
5.5 Standard set-up conditions . 9
6 Measuring methods of image quality . 10
6.1 Viewing angle range . 10
6.1.1 Purpose . 10
6.1.2 Measuring conditions . 10
6.1.3 Set-up . 10
6.1.4 Measurement and evaluation . 11
6.1.5 Reporting. 12
6.2 Cross-talk . 13
6.2.1 Purpose . 13
6.2.2 Measuring conditions . 13
6.2.3 Measurement and evaluation . 13
6.2.4 Reporting. 16
6.3 Flicker . 16
6.3.1 Purpose . 16
6.3.2 Measuring conditions . 16
6.3.3 Set-up . 16

6.3.4 Measuring method . 17
6.3.5 Evaluation method . 17
6.3.6 Reporting. 19
6.4 Static image resolution . 19
6.4.1 Purpose . 19
6.4.2 Measuring conditions . 20
6.4.3 Measuring method . 20
6.4.4 Calculation and reporting . 20
6.5 Moving image resolution . 21
6.5.1 Purpose . 21
6.5.2 Measuring conditions . 21
6.5.3 Temporal integration method . 23
6.5.4 Image tracking method . 25
6.5.5 Dynamic MTF calculation . 27

62341-6-3 © IEC:2012 – 3 –
6.5.6 Reporting. 27

Annex A (informative) Simple matrix method for correction stray light of imaging

instruments . 28

Bibliography . 30

Figure 1 – Representation of the viewing direction (equivalent to the direction of

measurement) by the angle of inclination, θ and the angle of rotation (azimuth angle),

φ in a polar coordinate system . 8

Figure 2 – DUT installation conditions . 9

Figure 3 – Geometry used for measuring viewing angle range . 11
Figure 4 – Standard measurement positions, indicated by P -P , are located relative
0 8
to the height (V) and display width (H) of active area. . 13
Figure 5 – Luminance measurement of 4 % window at P . 14
Figure 6 – Luminance measurement at P with windows A ,A , A and A . 15
0 W1 W2 B3 B4
Figure 7 – Luminance measurement at P with windows A , A , A and A . 15
0 W5 W8 B5 B8
Figure 8 – Apparatus arrangement . 16
Figure 9 – Temporal contrast sensitivity function . 18
Figure 10 – Example of flicker modulation waveform . 18
Figure 11 – Contrast modulation measurement . 21
Figure 12 – Peak luminance and amplitude of display test signal . 23
Figure 13 – Set-up for measurement of the temporal response of the DUT . 23
Figure 14 – Sinusoidal luminance pattern and corresponding gray level values . 24
Figure 15 – Input code sequences (left) and corresponding temporal luminance
transitions (right). 25
Figure 16 – Example of captured image . 26
Figure 17 – Example of Fourier transform . 27
Figure 18 – Example of limit resolution evaluation . 27
Figure A.1 – Result of spatial stray light correction for an imaging photometer used to
measure a black spot surrounded by a large bright light source. . 29

Table 1 – Temporal contrast sensitivity function . 17

– 4 – 62341-6-3 © IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAYS –

Part 6-3: Measuring methods of image quality

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization compri
...