1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationPlasma display panels Part 2-3: Measuring methods Image quality: defects and degradationBS EN 61988-2-3:2009National forewordThis British Standard is the UK implementation of EN
2、61988-2-3:2009. It isidentical to IEC 61988-2-3:2009.The UK participation in its preparation was entrusted to Technical CommitteeEPL/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 th
3、e necessary provisions of acontract. Users are responsible for its correct application. BSI 2010ISBN 978 0 580 57529 7ICS 31.260Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of the StandardsPolicy and Strategy
4、Committee on 31 January 2010Amendments issued since publicationAmd. No. Date Text affectedBRITISH STANDARDBS EN 61988-2-3:2009EUROPEAN STANDARD EN 61988-2-3 NORME EUROPENNE EUROPISCHE NORM November 2009 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation El
5、ectrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: Avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61988-2-3:2009 E ICS 31.260 English version Plasma displ
6、ay panels - Part 2-3: Measuring methods - Image quality: defects and degradation (IEC 61988-2-3:2009) Panneaux daffichage plasma - Partie 2-3: Mthodes de mesure - Qualit dimage: dfauts et dgradation (CEI 61988-2-3:2009) Plasmabildschirme - Teil 2-3: Messverfahren - Bildqualitt: Defekte und Bildversc
7、hlechterung (IEC 61988-2-3:2009) This European Standard was approved by CENELEC on 2009-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-t
8、o-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation u
9、nder the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, F
10、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61988-2-3:2009EN 61988-2-3:2009 - 2 - Foreword The text of document 110/180
11、/FDIS, future edition 1 of IEC 61988-2-3, prepared by IEC TC 110, Flat panel display devices, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61988-2-3 on 2009-09-01. The following dates were fixed: latest date by which the EN has to be implemented at national level
12、by publication of an identical national standard or by endorsement (dop) 2010-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61988-2-3:
13、2009 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 61966-5 NOTE Harmonized as EN 61966-5:2009 (not modified). IEC 61988-2-2 NOTE Harmonized as EN 61988-2-2:2003
14、 (not modified). _ BS EN 61988-2-3:2009- 3 - EN 61988-2-3:2009 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only
15、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC
16、 60068-1 1988 Environmental testing - Part 1: General and guidance EN 60068-11) 1994 IEC 60107-1 1997 Methods of measurement on receivers for television broadcast transmissions - Part 1: General considerations - Measurements at radio and video frequenciesEN 60107-1 1997 IEC 61988-1 -2)Plasma display
17、 panels - Part 1: Terminology and letter symbols EN 61988-1 20033)IEC 61988-2-1 2002 Plasma display panels - Part 2-1: Measuring methods - Optical EN 61988-2-1 2002 CIE 15 2004 Colorimetry - - 1) EN 60068-1 includes A1:1992 to IEC 60068-1 + corr. October 1988. 2)Undated reference. 3)Valid edition at
18、 date of issue. BS EN 61988-2-3:2009 2 61988-2-3 IEC:2009 CONTENTS 1 Scope.6 2 Normative references .6 3 Terms and definitions .6 4 Standard measuring conditions.7 4.1 Environmental conditions 7 4.2 Lighting conditions 7 4.3 Set-up conditions 7 4.3.1 Adjustment of PDP modules 7 4.3.2 Warm-up conditi
19、on of PDP modules 7 4.3.3 Conditions of measuring and driving equipment.7 5 Measuring methods 8 5.1 Cell defects .8 5.1.1 Purpose.8 5.1.2 Measuring equipment 8 5.1.3 Measuring layout .8 5.1.4 Division of display zone .8 5.1.5 Classification of cell defects 9 5.1.6 Luminance levels of defective cells
20、9 5.1.7 Measuring procedure.11 5.2 Image sticking .12 5.2.1 Purpose.12 5.2.2 Measuring equipment 12 5.2.3 Specification of image sticking.13 5.2.4 Measuring procedure.13 5.3 Luminance lifetime 15 5.3.1 Purpose.15 5.3.2 Measuring equipment 16 5.3.3 Measuring procedure.16 Annex A (informative) Luminan
21、ce lifetime estimation .18 Bibliography23 Figure 1 Measuring system and its arrangement 8 Figure 2 Example of display zone 9 Figure 3 Dark defect on green screen and its luminance level10 Figure 4 Bright defect on white screen and its luminance level.10 Figure 5 Bright defect on black screen and its
22、 luminance level.10 Figure 6 Bright defect on other colour screen and its luminance level 11 Figure 7 Image sticking pattern13 Figure 8 Image sticking measuring position14 Figure 9 Stabilization of luminance lifetime measurement 16 Figure 10 Example of luminance lifetime measurement17 Figure A.1 An
23、example of luminance degradation under different luminance conditions .19 BS EN 61988-2-3:200961988-2-3 IEC:2009 3 Figure A.2 The luminance degradation on log t axis.19 Figure A.3 The luminance degradation on L(t) vs. t1/2axis (an example of straight line) 21 Figure A.4 The luminance degradation on
24、L(t) vs. t1/2axis .21 Figure A.5 Flow of luminance lifetime estimation22 Table 1 Input signal for cell defect observation 12 Table 2 An example record of cell defects12 Table 3 Example of image sticking coefficient measurement (full screen red) 15 BS EN 61988-2-3:2009 6 61988-2-3 IEC:2009 PLASMA DIS
25、PLAY PANELS Part 2-3: Measuring methods Image quality: defects and degradation 1 Scope This part of IEC 61988 determines the measuring methods for defects and degradation of colour plasma display (PDP) module in the following areas: a) cell defects; b) image sticking; c) luminance lifetime. 2 Normat
26、ive references The following referenced documents are indispensable for the application 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 60068-1:1988, Environmental te
27、sting Part 1: General and guidance IEC 60107-1:1997, Methods of measurement on receivers for television broadcast transmissions Part 1: General considerations Measurements at radio and video frequencies IEC 61988-1, Plasma display panels Part 1: Terminology and letter symbols IEC 61988-2-1:2002, Pla
28、sma display panels Part 2-1: Measuring methods Optical CIE 15:2004, Colorimetry, 3rd Edition (ISBN 978 3 901906 33 6) 3 Terms and definitions For the purposes of this document, most of the terms and definitions used, comply with IEC 61988-1, IEC 60068-1 and IEC 60107-1, and the followings apply. 3.1
29、 cell defect cell showing a dark defect or a bright defect, or an unstable cell 3.2 defect luminance ratio percentage of luminance difference from the full screen white-level luminance of each colour 3.3 unstable cell cell that changes luminance in an uncontrollable way BS EN 61988-2-3:200961988-2-3
30、 IEC:2009 7 4 Standard measuring conditions 4.1 Environmental conditions Measurements shall be carried out under the standard environmental conditions, e.g. at a temperature of 25 C 3 C, a relative humidity of 25 % to 85 % and pressure of 86 kPa to 106 kPa. When different environmental conditions ar
31、e used, it shall be noted on the report. 4.2 Lighting conditions The following dark-room conditions shall be used for all measurements. Illuminance shall be less than 1 lx anywhere on the screen of the PDP module. When this illuminance significantly affects the measurement of the black level, the ba
32、ckground subtraction method shall be used. In case of a different illuminance or if the background subtraction method is used, it shall be noted on the report. 4.3 Set-up conditions Standard set-up conditions are given below. Each condition shall be noted on the specification form whenever any measu
33、rement is carried out under conditions that differ from the standard set-up conditions. 4.3.1 Adjustment of PDP modules For contrast adjustable PDP module, set the maximum contrast under the standard measuring environmental conditions (see 4.1), measurements shall be started when the PDP module achi
34、eves stability. 4.3.2 Warm-up condition of PDP modules Measurements shall be started after warm-up when the PDP module achieves stability. The warm-up time shall be longer than 30 min with signal input set at 15 % grey level on full screen without gamma correction. Measurements shall be started afte
35、r the above warm-up when the PDP module achieves stability, unless other specified measuring methods are used. When different warm-up conditions are used, they shall be noted on the report. 4.3.3 Conditions of measuring and driving equipment a) The light measuring device shall be aligned perpendicul
36、ar to the area to be measured on the screen of the PDP module. b) The standard measuring distance X0is 2,5 V, where V is the screen height or the short side length of the screen. The measuring distance shall be between 1,6 V and 2,8 V. The measuring distance shall be noted on the report (see Figure
37、1). c) The light measuring device shall be set at a proper aperture angle less than or equal to 2 and shall measure an area of at least 500 pixels which has an extent less than 10 % of the screen height. This area corresponds to a circular measurement area of at least 26 lines in diameter in the cas
38、e of a display panel having a square pixel consisting of 3 subpixels. The measuring distance and the aperture angle may be adjusted to achieve a viewing area greater than 500 pixels which has an extent less than 10 % of the screen height if setting the above aperture angle is difficult. Such deviati
39、ons from standard conditions shall be noted on the report. d) The standard field frequency of the driving signal equipment shall be 60 Hz, unless the module is intended to be used at a significantly different frequency. In any case, the field frequency used shall be noted on the report. e) In case o
40、f visual inspection, the inspector shall observe the area to be measured on the screen of the colour plasma display module from the same position of light measuring devices. BS EN 61988-2-3:2009 8 61988-2-3 IEC:2009 Driving power source Light measuring device Display surface Colour plasma display mo
41、dule X0Driving signal IEC 1242/09 Figure 1 Measuring system and its arrangement 5 Measuring methods 5.1 Cell defects 5.1.1 Purpose The purpose of this method is to measure the cell defects of the PDP modules. 5.1.2 Measuring equipment The following equipment shall be used: a) Driving power source b)
42、 Driving signal equipment c) Automatic defect inspection instrument (optional). 5.1.3 Measuring layout Measurements shall be carried out at the standard measuring layout shown in Figure 1. When a different measuring layout is used, this shall be noted on the report. When visual inspection is used, t
43、he inspector should observe the module from the same place as the light measuring equipment which is defined in the standard measuring layout. 5.1.4 Division of display zone The whole screen is usually divided into two zones during the measurement, as shown in Figure 2. BS EN 61988-2-3:200961988-2-3
44、 IEC:2009 9 0,5 V 0,5 HB-ZONE A-ZONE (25 %) H VIEC 1243/09 Key 1 A-zone, the 25 % area of inner box 2 B-zone, the remaining 75 % area in the outer box Figure 2 Example of display zone In this example, the centre of A-zone collides to the screen centre and the ratio of the size of A-zone to that of t
45、he screen area may be defined. Figure 2 shows an example of 25 % area and the horizontal and vertical ratio are both 0,5. For the measurement of cell defects, the number of defect cells may be separately observed on each separated screen zone as shown in Figure 2, when required in the relevant speci
46、fication. 5.1.5 Classification of cell defects Cell defects are classified as follows: dark defect, bright defect and unstable cell. For the definitions, see 3.3 of this standard and IEC 61988-1. 5.1.6 Luminance levels of defective cells The luminance level for each defect on each screen condition i
47、s defined as the defect luminance ratio X, Y, Z or V as follows: A dark defect (R, G, or B) has a luminance which is darker than X % of the luminance of full screen R, G or B respectively (see Figure 3). A bright defect (R, G, or B) on white, or same colour screen has a luminance which is brighter t
48、han Y % of the luminance of full screen R, G, or B respectively (see Figure 4). A bright defect (R, G, or B) on black screen has a luminance which is brighter than Z % of the luminance of full screen R, G or B respectively (see Figure 5). A bright defect (R, G, or B) on other colours (for an example
49、, red bright defect on full screen green, or phosphor contamination) has a luminance which is brighter than V % of the luminance of full screen R, G or B respectively (see Figure 6). The X, Y, Z or V values can be different for each colour defect. The values chosen for X, Y, Z and V shall be given in the report. BS EN 61988-2-3:2009 10 61988-2-3 IEC:2009 Relativeluminance(%)R G B R G B R G B a) Green dark defect on gr
