EN 62341-5-3-2013 en Organic Light Emitting Diode (OLED) displays - Part 5-3 Measuring methods of image sticking and lifetime.pdf

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1、BSI Standards PublicationOrganic Light Emitting Diode (OLED) displaysPart 5-3: Measuring methods of image sticking and lifetimeBS EN 62341-5-3:2013National forewordThis British Standard is the UK implementation of EN 62341-5-3:2013. It isidentical to IEC 62341-5-3:2013.The UK participation in its pr

2、eparation was entrusted to TechnicalCommittee EPL/47, Semiconductors.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct applicat

3、ion. The British Standards Institution 2013.Published by BSI Standards Limited 2013ISBN 978 0 580 72871 6ICS 31.120; 31.260Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Commi

4、ttee on 31 October 2013.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62341-5-3:2013EUROPEAN STANDARD EN 62341-5-3 NORME EUROPENNE EUROPISCHE NORM October 2013 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Elect

5、rotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62341-5-3:2013 E ICS 31.120; 31.260 English versi

6、on Organic Light Emitting Diode (OLED) displays - Part 5-3: Measuring methods of image sticking and lifetime (IEC 62341-5-3:2013) Afficheurs diodes lectroluminescentes organiques (OLED) - Partie 5-3: Mthodes de mesure de la dure de vie et de la rmanence dimages (CEI 62341-5-3:2013) Anzeigen mit orga

7、nischen Leuchtdioden (OLED) - Teil 5-3: Messverfahren fr Nachbilder und Lebensdauer (IEC 62341-5-3:2013) This European Standard was approved by CENELEC on 2013-09-30. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European

8、 Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official version

9、s (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical commit

10、tees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Sl

11、ovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 62341-5-3:2013EN 62341-5-3:2013 - 2 - Foreword The text of document 110/474/FDIS, future edition 1 of IEC 62341-5-3, prepared by IEC/TC 110 “Electronic display devices“ was submitted to the IEC-CENELEC parallel vote and approve

12、d by CENELEC as EN 62341-5-3:2013. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2014-06-30 latest date by which the national standards conflicting with the document ha

13、ve to be withdrawn (dow) 2016-09-30 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International S

14、tandard IEC 62341-5-3:2013 was approved by CENELEC as a European Standard without any modification. BS EN 62341-5-3:2013- 3 - EN 62341-5-3:2013 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or

15、in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has b

16、een modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60050 Series International Electrotechnical Vocabulary (IEV) - - IEC 61966-2-1 1999 Multimedia systems and equipment - Colour measurement and management - Part 2-1: Colour mana

17、gement - Default RGB colour space - sRGB EN 61966-2-1 2000 IEC 62087 2011 Methods of Measurement for the power consumption of audio, video and related equipment EN 62087 2012 IEC 62341-1-2 2007 Organic light emitting diode displays - Part 1-2: Terminology and letter symbols EN 62341-1-2 2009 IEC 623

18、41-6-1 2009 Organic light emitting diode (OLED) displays - Part 6-1: Measuring methods of optical and electro-optical parameters EN 62341-6-1 2011 CIE 15 2004 Colorimetry - - BS EN 62341-5-3:2013 2 62341-5-3 IEC:2013 CONTENTS 1 Scope . 6 2 Normative references . 6 3 Terms and definitions . 6 4 Measu

19、ring configuration . 7 4.1 General . 7 4.2 Light measuring device (LMD) . 7 5 Standard measuring conditions . 7 5.1 Standard measuring environmental conditions . 7 5.2 Standard measuring dark-room condition 7 5.3 Standard setup conditions . 7 5.3.1 General . 7 5.3.2 Adjustment of OLED display module

20、s 8 5.3.3 Starting conditions of measurements . 8 5.3.4 Test patterns . 8 5.3.5 Conditions of measuring equipment . 9 6 Measuring methods of image sticking . 9 6.1 Purpose. 9 6.2 Measuring method . 9 6.2.1 Measuring equipment 9 6.2.2 Measuring procedure . 9 6.3 Analysis and report . 10 6.3.1 Analysi

21、s . 10 6.3.2 Report . 12 7 Measuring methods of the luminance lifetime . 13 7.1 Purpose. 13 7.2 Measuring method . 13 7.2.1 Measuring equipment 13 7.2.2 Measuring procedure . 13 7.2.3 Estimation of luminance lifetime 14 7.3 Analysis and report . 15 Annex A (informative) Calculation method of equival

22、ent signal level 17 Annex B (informative) Acceleration test of lifetime measurement . 23 Bibliography 26 Figure 1 Measuring system and arrangement . 7 Figure 2 Test pattern for image sticking . 9 Figure 3 An example of the burn-in image 10 Figure 4 An example of luminance behavior in operation for a

23、n OLED display panel or module . 14 Figure 5 An example of lifetime estimation with the extrapolation method 15 Figure 6 An example of estimated lifetime depending on the time elapsed . 15 Figure 7 An example of Weibull distribution of lifetime . 16 Figure A.1 Measured 10 mA/cm2to 80 mA/cm2OLED degr

24、adation values and corresponding modelled functions with m = 1/1,7 18 BS EN 62341-5-3:201362341-5-3 IEC:2013 3 Figure A.2 Accumulated colour intensity of IEC 62087:2011 10-min video loop in RGB subpixel format with equivalent signal distribution chart based on the left images, respectively 21 Figure

25、 A.3 Accumulated colour intensity of the IEC 62087:2011 10-min video loop in W, R, G, and B format, with equivalent signal distribution chart based on the left images, respectively . 22 Figure B.1 Examples of Weibull distributions of accelerated lifetime test 23 Table 1 An example of measuring dista

26、nce and radius size 8 Table 2 An example of typical value . 12 Table 3 An example of the image sticking time with reference 13 Table 4 An example of the image sticking data at target time . 13 Table 5 Examples of lifetime measurement 16 Table A.1 Examples of the maximum and the minimum equivalent si

27、gnal levels (8 bits) 20 Table B.1 Summary of the acceleration test results in Figure B.1 . 24 Table B.2 Statistical analysis results of the accelerated lifetime test in Figure B.1 . 24 BS EN 62341-5-3:2013 6 62341-5-3 IEC:2013 ORGANIC LIGHT EMITTING DIODE (OLED) DISPLAYS Part 5-3: Measuring methods

28、of image sticking and lifetime 1 Scope This part of IEC 62341 specifies the standard measurement conditions and measurement methods for determining the image sticking and lifetime of organic light emitting diode (OLED) display panels and modules. It mainly applies to modules. 2 Normative references

29、The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 600

30、50 (all parts), International Electrotechnical Vocabulary (available at ) IEC 62087:2011, Methods of measurement for the power consumption of audio, video and related equipment IEC 62341-1-2:2007, Organic light emitting diode (OLED) displays Part 1-2: Terminology and letter symbols IEC 62341-6-1:200

31、9, Organic light emitting diode (OLED) displays Part 6-1: Measuring methods of optical and electro-optical parameters IEC 61966-2-1:1999, Multimedia systems and equipment Colour measurement and management Part 2-1: Colour management Default RGB colour space sRGB CIE 15-2004, Colorimetry 3 Terms and

32、definitions For the purposes of this document, the terms and definitions given in IEC 62341-1-2:2007 and IEC 60050-845:1987, as well as the following apply. 3.1 equivalent current density average current density of a certain pixel calculated from a varying luminance per frame image in a moving pictu

33、re so that luminance degradation becomes similar at the same time Note 1 to entry: See Annex A. 3.2 equivalent signal level digital code value from 0 to 255 (in the case of 8 bits) transformed from the normalized luminance of a certain pixel by a gamma function Note 1 to entry: See Annex A. BS EN 62

34、341-5-3:201362341-5-3 IEC:2013 7 4 Measuring configuration 4.1 General The system diagrams and/or operating conditions of the measuring equipment shall comply with the structure specified in each item. The measuring system and its arrangement are shown in Figure 1. The details are referred to in Cla

35、use 5. OLED display module Display surface Light measuring device Driving power source Driving signal IEC 2151/13 Figure 1 Measuring system and arrangement 4.2 Light measuring device (LMD) The LMD as defined in IEC 62341-6-1:2009 shall be used. Specifically, the accuracy of the LMD at 1 degree of th

36、e measurement field angle is recommended as being 3%, and with a repeatability 0,5%. 5 Standard measuring conditions 5.1 Standard measuring environmental conditions The standard measuring environmental conditions specified in IEC 62341-6-1:2009, 5.1, shall be applied. For image sticking measurements

37、, the environmental temperature shall be controlled at 25 C 2 C, otherwise a temperature controlled detector shall be used. (The stability of the LMD shall be less than 1/5 of the intended detecting difference levels of luminance and colour.) 5.2 Standard measuring dark-room condition The standard m

38、easuring dark-room conditions specified in IEC 62341-6-1:2009, 5.2, shall be applied. 5.3 Standard setup conditions 5.3.1 General For the measurement area, the minimum radius for measurement with the distance and aperture angle is explained in Table 1. BS EN 62341-5-3:2013 8 62341-5-3 IEC:2013 Table

39、 1 An example of measuring distance and radius size Distance (mm) Aperture angle (degree) Radius of measurement field (mm) 500 2 10 1 5 0,2 1 0,1 0,5 5.3.2 Adjustment of OLED display modules The adjustment of OLED display modules specified in IEC 62341-6-1:2009, 5.3.1, shall be applied. 5.3.3 Starti

40、ng conditions of measurements Warm-up time is defined as the time elapsed from the moment of switching on the supply voltage until repeated measurements of the display show a variation in luminance of less than 2 % per minute. Repeated measurements shall be taken for at least a period of 15 minutes

41、after starting. The luminance variations shall also not exceed 5 % during the total measurement. 5.3.4 Test patterns The test patterns for display devices such as mobile phones, table PCs, monitors and TVs are shown in Figure 2. In the case of mobiles and tablet PCs, depending on the size of the OLE

42、D display panels or modules and measurement distance between the display and the LMD, if the pattern size is a smaller area than a 10 mm radius at a 500 mm measurement distance with a 2-degree aperture angle of the LMD, then the aperture angle of the LMD should be set to cover the pattern area as se

43、t in Table 1. The measuring distance and the aperture angle may be adjusted to achieve a measuring field greater than 500 pixels if the setting of the aperture angle is difficult. For all applications, the test pattern is used in Figure 2a), and usage method case for monitors and TVs such as Figure

44、2b) may be used. In order to get repeatability of measurement, the measuring location from P0to P4for TVs type as shown in Figure 2c) are set, considering the uniformity of the OLED display panels or modules. BS EN 62341-5-3:201362341-5-3 IEC:2013 9 IEC 2152/13 IEC 2153/13 a) The test pattern for di

45、splay devices except monitors and TVs b) The test pattern for monitor and TV devices IEC 215413 c) Image sticking measuring location Figure 2 Test pattern for image sticking 5.3.5 Conditions of measuring equipment The general conditions in IEC 62341-6-1:2009, 5.3.3.1, shall be applied. 6 Measuring m

46、ethods of image sticking 6.1 Purpose The purpose of this method is to measure the image sticking of OLED display panels or modules. 6.2 Measuring method 6.2.1 Measuring equipment The following equipment defined in IEC 62341-6-1:2009, 6.1.2, shall be used: a) power supplies and signal sources for dri

47、ving, b) LMD. 6.2.2 Measuring procedure The OLED display modules shall be set in dark-room conditions for measurement. 1) Initial measurements on full screen pattern BS EN 62341-5-3:2013 10 62341-5-3 IEC:2013 Apply a full white screen driving signal to the OLED display modules over the full screen,

48、and set all power supplies to the standard operation conditions. However, for some display applications, the full screen luminance can be reduced, according to 7.3.1 of IEC 62341-6-1:2009. Measure the initial spectral radiance or tristimulus values of white at P0to P4as shown in Figure 2c). The init

49、ial spectra radiance or tristrimulus values of the primary colours may also be measured individually. 2) Image burn-in using test pattern For the test pattern for display devices (except monitors and TVs), set the test input signal to the OLED display modules to generate a 0 % luminance level over the full screen and a peak luminance at the test pattern which is located at the centre of the display as shown in Figure 2a). For monitor and TV, set t