1、BRITISH STANDARDBS EN 61988-4:2007Plasma display panels Part 4: Climatic and mechanical testing methodsThe European Standard EN 61988-4:2007 has the status of a British StandardICS 31.120; 33.180.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g5
2、9g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 61988-4:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 June 2007 BSI 2007ISBN 978 0 580 53396 9National forewordThis British Stand
3、ard was published by BSI. It is the UK implementation of EN 61988-4:2007. It is identical with IEC 61988-4:2007. The UK participation in its preparation was entrusted to Technical Committee EPL/47, Semiconductors.A list of organizations represented on this committee can be obtained on request to its
4、 secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STA
5、NDARD EN 61988-4 NORME EUROPENNE EUROPISCHE NORM May 2007 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2007 CENELEC - All rig
6、hts of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61988-4:2007 E ICS 33.180.20 English version Plasma display panels - Part 4: Climatic and mechanical testing methods (IEC 61988-4:2007) Panneaux daffichage plasma - Partie 4: Mthodes dessais climatiq
7、ues et mcaniques (CEI 61988-4:2007) Plasmabildschirme - Teil 4: Umwelt-, Lebensdauer- und mechanische Prfverfahren (IEC 61988-4:2007) This European Standard was approved by CENELEC on 2007-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
8、ions for giving this European 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 Central Secretariat or to any CENELEC member. This European Standard exists in thr
9、ee official versions (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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnic
10、al committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and
11、the United Kingdom. Foreword The text of document 110/107/FDIS, future edition 1 of IEC 61988-4, prepared by IEC TC 110, Flat panel display devices, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61988-4 on 2007-05-01. The following dates were fixed: latest date by
12、which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2008-02-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-05-01 Annex ZA has been added by CENELEC. _ Endorsement notice
13、The text of the International Standard IEC 61988-4:2007 was approved by CENELEC as a European Standard without any modification. _ EN 61988-4:2007 2 CONTENTS 1 Scope.4 2 Normative references .4 3 Terms, definitions and letter symbols .5 4 Structure of testing equipment5 5 Standard conditions5 5.1 St
14、andard reference atmosphere 5 5.2 Standard atmospheric conditions for reference measurements and tests .5 5.3 Standard atmospheric conditions for measurement and tests 6 5.4 Standard atmospheric conditions for assisted drying .6 5.5 Recovery conditions 6 5.6 Standard installation conditions.6 5.7 St
15、andard measuring conditions .6 5.8 PDP module state .6 5.9 Operating conditions .6 6 Measurements7 7 Climatic testing methods 7 7.1 Storage at high temperature 7 7.2 Storage at low temperature .9 7.3 Damp heat, cyclic10 7.4 Damp heat at steady state (Operation) 11 7.5 Operation at low temperature 12
16、 7.6 Low air pressure14 8 Mechanical testing methods .15 8.1 Vibration (sinusoidal).15 8.2 Shock16 8.3 Transportation drop 18 8.4 Toppling .18 Bibliography19 Figure 1 Testing procedure at the low temperature (operation) 13 Figure 2 Configuration of PDP module directions .16 Figure 3 Example of PDP s
17、hock testing equipment 17 Table 1 Standard conditions for reference measurements and tests.5 Table 2 Peak value and duration17 EN 61988-4:2007 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications . 20PLASMA DISPLAY PANELS Part 4: Cl
18、imatic and mechanical testing methods 1 Scope This part of IEC 61988 defines test methods for evaluating environmental and mechanical endurance characteristics of plasma display modules (PDP modules). 2 Normative references The following referenced standards are indispensable for the application of
19、this standard. For standards with explicit dates, only the edition cited applies. For undated standards, the latest edition of the referenced standard (including any amendments) applies. IEC 60068-1:1988, Environmental testing Part 1: General and guidance IEC 60068-2-1:1990, Environmental testing Pa
20、rt 2: Tests Tests A: Cold IEC 60068-2-2:1974, Environmental testing Part 2: Tests Tests B: Dry heat IEC 60068-2-6, Environmental testing Part 2: Tests Test Fc: Vibration (sinusoidal) IEC 60068-2-13, Environmental testing Part 2: Tests Test M: Low air pressure IEC 60068-2-27:1987, Environmental testi
21、ng Part 2: Tests Test Ea and guidance: Shock IEC 60068-2-30, Environmental testing Part 2-30: Tests Test Db: Damp heat, cyclic (12 h + 12 h cycle) IEC 60068-2-78:2001, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 61747-5:1998, Liquid crystal and solid-state display de
22、vices Part 5: Environmental, endurance and mechanical test methods IEC 61988-1, Plasma display panels Part 1: Terminology and letter symbols ISO 2248, Packaging Complete, filled transport packages Vertical impact test by dropping ISO 4180-1, Complete, filled transport packages General rules for the
23、compilation of performance test schedules Part 1: General principles ISO 4180-2, Complete, filled transport packages General rules for the compilation of performance test schedules Part 2: Quantitative data EN 61988-4:2007 4 ISO 10531, Packaging Complete, filled transport packages Stability testing
24、of unit loads 3 Terms, definitions and letter symbols For the purposes of this document, most of the definitions used in this standard comply with IEC 60068-1 and IEC 61988-1. The following symbols are used in addition to those defined in IEC 61988-1. 3.1 Popair pressure at which the PDP module is o
25、perated during the tests 3.2 Pstair pressure at which the PDP module is stored in a non-operating state during the tests 4 Structure of testing equipment The system diagrams and/or driving conditions of the testing equipment shall comply with the structure specified in each item. 5 Standard conditio
26、ns 5.1 Standard reference atmosphere Temperature: 25 C Air pressure: 101,3 kPa NOTE No requirement for relative humidity is given because correction by calculation is generally not possible. If the parameters to be measured depend on temperature and/or pressure and the law of dependence is known, th
27、e values shall be measured in the conditions specified in 5.3 and, if necessary, be corrected by calculation to the standard reference atmospheric conditions above. 5.2 Standard atmospheric conditions for reference measurements and tests If the parameters to be measured depend on temperature, pressu
28、re and humidity and the law of dependence is unknown, the atmospheric conditions to be specified shall be selected from the following values, as shown in Table 1. Table 1 Standard conditions for reference measurements and tests Temperature C Relative humiditya% RH Air pressureakPa 20 3 25 3 30 3 35
29、3 45 to 75 86 to 106 a Inclusive values. EN 61988-4:2007 5 5.3 Standard atmospheric conditions for measurement and tests Unless otherwise specified, all tests and measurements shall be carried out under standard atmospheric conditions: temperature: 15 C to 35 C; relative humidity: 25 % to 85 %, wher
30、e appropriate; air pressure: 86 kPa to 106 kPa. The absolute humidity of the atmosphere shall not exceed 22 g/m3. 5.4 Standard atmospheric conditions for assisted drying Where assisted drying is required before commencing a series of measurements, the conditions listed below shall be used on the PDP
31、 module for at least 2 h, unless otherwise prescribed by the relevant specification: temperature: (55 3) C; relative humidity: not exceeding 20 %; air pressure: 86 kPa to 106 kPa. When the specified temperature for the dry heat test is lower than 55 C, assisted drying shall be carried out at that lo
32、wer temperature. 5.5 Recovery conditions The recovery shall be carried out in the conditions specified in 5.3 of IEC 60068-1: temperature: 15 C to 35 C; relative humidity: 25 % to 75 %; air pressure: 86 kPa to 106 kPa. 5.6 Standard installation conditions Unless otherwise specified in the relevant s
33、pecification, stand the PDP module keeping adequate clearance to avoid airflow disturbance. The mounting structure of the PDP module shall be specified in the relevant specification. 5.7 Standard measuring conditions The standard measuring conditions described in IEC 61988-2 shall be applied. 5.8 PD
34、P module state For the non-operating test, the PDP module shall be either unpacked and turned off, or as otherwise specified in the relevant specification. For the operating test, the PDP module shall be either in the unpacked, turned off and ready-for-use state, or as otherwise specified in the rel
35、evant specification. 5.9 Operating conditions Full screen: The signal input sets at (15 1) % of white level without gamma correction or equivalent input level when gamma correction is used. In case a different signal input is used, it shall be noted in the report. NOTE The 15 % signal input level is
36、 a typical value for video. EN 61988-4:2007 6 6 Measurements The following items shall be evaluated on initial, intermediate and final measurements: a) visual and optical performance (refer to IEC 61988-2-1 and IEC 61988-2-2); b) electrical performance (refer to IEC 61988-2-1 and IEC 61988-2-2); c)
37、mechanical performance. If additional measurements are carried out, they shall be noted in the report. Data about initial, intermediate and final measurements shall be recorded in the report. 7 Climatic testing methods The testing equipment used shall be noted in the relevant specification. NOTE Mak
38、e sure that the actual value, such as temperature, is within the specified value and a report on the actual value is made. 7.1 Storage at high temperature 7.1.1 Purpose The purpose of this test is to evaluate the performance of the PDP module after high temperature storage. 7.1.2 Storage conditions
39、Test Bb of IEC 60068-2-2 shall be applied with the following specific conditions. Test Bb: Dry heat for non heat-dissipating specimen with gradual change of temperature. a) Temperature The temperature shall be selected from the values given below: (100 3) C (95 3) C (90 3) C (85 3) C (80 3) C (75 3)
40、 C (70 3) C (65 3) C (60 3) C (55 3) C (50 3) C (45 3) C (40 3) C (35 3) C (30 3) C EN 61988-4:2007 7 The temperature selected shall be noted in the report. b) Duration The duration shall be selected from the values given below: 2 h, 16 h, 24 h, 48 h, 72 h, 96 h, 120 h, 192 h, 240 h, 300 h, 500 h an
41、d 1 000 h. The duration selected shall be noted in the report. c) Humidity The absolute humidity of the atmosphere should not exceed 20 g/m3(corresponding approximately to 50 % relative humidity at 35 C). 7.1.3 Testing procedures a) The chamber shall be at the temperature of the laboratory. The PDP
42、module, while being at the ambient temperature of the laboratory, shall be introduced into the chamber in accordance with 5.6 or as otherwise specified. b) The temperature in the chamber shall then be adjusted to the temperature appropriate to the degree of severity and time shall be allowed for the
43、 chamber to reach temperature stability. (Temperature stability is defined in 4.8 of IEC 60068-1.) The rate of change of temperature in the chamber shall not exceed 3 C/min, averaged over a period of not more than 5 min. The test temperature shall be measured in accordance with 4.6 of IEC 60068-1. c
44、) The PDP module shall then be exposed to the high temperature conditions for the duration as specified in the relevant specification. The duration shall be measured from the moment temperature stability has been reached. d) If required by the relevant specification, intermediate measurements shall
45、be performed in accordance with 7.1.4. e) At the end of this period, the PDP module shall remain in the chamber and the temperature shall be gradually lowered to a value lying within the limits of standard atmospheric conditions for testing. The rate of change of temperature in the chamber shall not
46、 exceed 3 C/min, averaged over a period of not more than 5 min. At the end of this period, the PDP module shall be subject to the recovery procedure in the chamber or otherwise as appropriate. 7.1.4 Intermediate measurements The relevant specification may require functional tests during the conditio
47、ning programme. When intermediate measurements are required, the relevant specification shall define the measuring items and the period(s) during the conditioning, and the results shall be noted in the report. 7.1.5 Recovery a) The PDP module shall then remain under standard atmospheric conditions f
48、or recovery for a period adequate for the attainment of temperature stability. b) If required by the relevant specification, the PDP module shall be measured during the recovery period. EN 61988-4:2007 8 7.2 Storage at low temperature 7.2.1 Purpose The purpose of this test is to evaluate the perform
49、ance of the PDP module after low temperature storage. 7.2.2 Storage conditions Test Ab of IEC 60068-2-1 shall be applied with the following specific conditions. Test Ab: Cold for non heat-dissipating specimen with gradual change of temperature. a) Temperature The temperature shall be selected from the values given below: (50 3) C (45 3) C (40 3) C (35 3) C (30 3) C (25 3)
