IEC 62715-6-2-2017 Flexible display devices - Part 6-2 Environmental testing methods《软性显示装置 第6-2部分 环境试验方法》.pdf

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1、 IEC 62715-6-2 Edition 1.0 2017-05 INTERNATIONAL STANDARD Flexible display devices Part 6-2: Environmental testing methods IEC 62715-6-2:2017-05(en) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2017 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this public

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10、ck on this publication or need further assistance, please contact the Customer Service Centre: csciec.ch. IEC 62715-6-2 Edition 1.0 2017-05 INTERNATIONAL STANDARD Flexible display devices Part 6-2: Environmental testing methods INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 31.120 ISBN 978-2-8322-437

11、0-1 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. 2 IEC 62715-6-2:2017 IEC 2017 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions 7 4 Structure of measuring eq

12、uipment . 7 5 Standard conditions . 7 5.1 Standard reference atmosphere 7 5.2 Standard atmospheric conditions for referee measurements and tests 7 5.3 Standard atmospheric conditions for measurements and tests 8 5.4 Recovery conditions 8 5.5 Standard atmospheric conditions for assisted drying . 8 5.

13、6 Operating conditions . 8 5.7 Standard flexible display test configuration . 8 6 Measurements and analysis 9 7 Environmental testing methods 9 7.1 General . 9 7.2 Storage at high temperature 9 7.2.1 Purpose . 9 7.2.2 Test conditions 9 7.3 Storage at low temperature . 10 7.3.1 Purpose . 10 7.3.2 Tes

14、t conditions 10 7.4 Temperature change, storage . 10 7.4.1 Purpose . 10 7.4.2 Rapid change of temperature . 10 7.4.3 Specified change rate of temperature 10 7.5 Damp heat, steady state, storage 11 7.5.1 Purpose . 11 7.5.2 Test conditions 11 7.6 Damp heat, cyclic, storage 11 7.6.1 Purpose . 11 7.6.2

15、Test conditions 11 7.7 Operation at high temperature 12 7.7.1 Purpose . 12 7.7.2 Test conditions 12 7.8 Operation at low temperature 12 7.8.1 Purpose . 12 7.8.2 Test conditions 12 7.9 Damp heat, steady state, operational 13 7.9.1 Purpose . 13 7.9.2 Test conditions 13 Bibliography 14 IEC 62715-6-2:20

16、17 IEC 2017 3 Table 1 Standard conditions for referee measurements and tests 7 Table 2 Assisted drying condition . 8 Table 3 Examples of the damp heat, steady state test conditions . 11 4 IEC 62715-6-2:2017 IEC 2017 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ FLEXIBLE DISPLAY DEVICES Part 6-2: Envir

17、onmental testing methods 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 concerni

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26、 arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attentio

27、n is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62715-6-2 has been prepared by IEC technical committee 110: Electronic disp

28、lay devices. The text of this International Standard is based on the following documents: FDIS Report on voting 110/860/FDIS 110/871/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

29、 been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62715 series, published under the general title Flexible display devices, can be found on the IEC website. IEC 62715-6-2:2017 IEC 2017 5 The committee has decided that the contents of this document will r

30、emain 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 issue

31、d at a later date. 6 IEC 62715-6-2:2017 IEC 2017 FLEXIBLE DISPLAY DEVICES Part 6-2: Environmental testing methods 1 Scope This part of IEC 62715 specifies testing methods for evaluating the environmental endurance of flexible display panels and modules for use, storage and transport under assumed us

32、age environment. This part of IEC 62715 is applicable to flexible display panels and modules such as liquid crystal display devices (LCDs), electric paper display devices (EPDs), and organic light emitting diode display devices (OLEDs). This part of IEC 62715 will also be suitable for flexible panel

33、 or module with mechanical operation. 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

34、 of the referenced document (including any amendments) applies. IEC 60068-1:2013, Environmental testing Part 1: General and guidance IEC 60068-2-1, Environmental testing Part 2-1: Tests Test A: Cold IEC 60068-2-2, Environmental testing Part 2-2: Tests Test B: Dry heat IEC 60068-2-14, Environmental t

35、esting Part 2-14: Tests Test N: Change of temperature IEC 60068-2-30, Environmental testing Part 2-30: Tests Test Db: Damp heat, cyclic (12 h + 12 h cycle) IEC 60068-2-78, Environmental testing Part 2-78: Tests Test Cab: Damp heat, steady state IEC 62341-6-2, Organic light emitting diode (OLED) disp

36、lays Part 6-2: Measuring methods of visual quality and ambient performance IEC 62341-6-3, Organic light emitting diode (OLED) displays Part 6-3: Measuring methods of image quality IEC 62715-1-1, Flexible display devices Part 1-1: Terminology and letter symbols IEC 62715-5-1 1 , Flexible display devi

37、ces Part 5-1: Measuring methods of optical performance IEC 62715-5-3 2 , Flexible display devices Part 5-3: Visual assessment _ 1Under preparation. Stage at the time of publication: IEC/FDIS IEC 62715-5-1:2017. 2Under preparation. Stage at the time of publication: IEC/FDIS IEC 62715-5-3:2017. IEC 62

38、715-6-2:2017 IEC 2017 7 IEC 62715-6-1, Flexible display devices Part 6-1: Mechanical stress test methods IEC 62679-3-2, Electronic paper display Part 3-2: Measuring method Electro-optical 3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 62715-1-1 and

39、IEC 60068-1 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 4 Structure of measuring equipment The system diagrams a

40、nd/or operating conditions of the measuring equipment shall comply with the structure specified in each item. 5 Standard conditions 5.1 Standard reference atmosphere The following conditions are applied: temperature: 25 C air pressure: 101,3 kPa NOTE No requirement for relative humidity is given bec

41、ause correction by calculation is generally not possible. If the parameters to be measured depend on temperature and/or pressure, and their dependence on temperature and pressure is known, the parameter values can be measured under the conditions specified in 5.3 and corrected by calculation to the

42、standard reference atmosphere above. 5.2 Standard atmospheric conditions for referee measurements and tests If the parameters to be measured depend on temperature, pressure and humidity and their dependence on temperature, pressure and humidity is unknown, the atmospheres to be specified shall be se

43、lected from the following values, as shown in Table 1. The selected values shall be noted in the relevant specifications. Table 1 Standard conditions for referee measurements and tests Temperature aC Relative humidity b% RH Air pressure bkPa 20 2 / 1 25 2 / 1 30 2 / 1 35 2 / 1 45 to 75 86 to 106 a T

44、he close tolerances may be used for the referee measurements. The wider tolerances may be used only when allowed by the relevant specification. b Inclusive values. 8 IEC 62715-6-2:2017 IEC 2017 5.3 Standard atmospheric conditions for measurements and tests Unless otherwise specified, all tests and m

45、easurements shall be carried out under standard atmospheric conditions: temperature: 15 C to 35 C relative humidity: 25 % to 85 %, where appropriate air pressure: 86 kPa to 106 kPa 5.4 Recovery conditions The recovery conditions specified in IEC 60068-1:2013, 4.4, shall be applied. The flexible pane

46、l or module shall be subjected to the recovery procedure in the chamber or otherwise as appropriate. The flexible panel or module shall then remain under standard atmospheric conditions for recovery for a period adequate for the attainment of temperature stability, with a minimum of 1 h. If required

47、 by the relevant specification, the panel or module shall be switched on or loaded and measured continuously during the recovery period. If the standard conditions given above are not appropriate for the device to be tested, the relevant specification may call for other recovery conditions. 5.5 Stan

48、dard atmospheric conditions for assisted drying The conditions specified in IEC 60068-1:2013, 4.5, shall be applied. Where assisted drying is required before commencing a series of measurements, the following conditions (see Table 2) shall be used for 6 h, unless otherwise prescribed by the relevant

49、 specification. Table 2 Assisted drying condition Temperature Relative humidity Air pressurea55 2 Not exceeding 20 % 86 kPa to 106 kPa a Inclusive values. If it is impracticable to carry out assisted drying under the standard conditions for assisted drying, a note, stating the actual conditions, shall be added to the test report. When the specified temperature for the dry heat test is lower than 55 C, the assisted dryin