1、 IEC 62679-3-2 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electronic paper display Part 3-2: Measuring method Electro-optical Afficheur de papier lectronique Partie 3-2: Mthode de mesure Electro-optique IEC62679-3-2:2013 colourinsideTHIS PUBLICATION IS COPYRIGHT PROTECTED Copyri
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15、hnique International (VEI) en ligne. Service Clients - webstore.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62679-3-2 Edition 1.0 2013-09 INTERNATIONAL STANDARD NORME INTERNATIONALE Electronic paper display
16、 Part 3-2: Measuring method Electro-optical Afficheur de papier lectronique Partie 3-2: Mthode de mesure Electro-optique INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE T ICS 31.120; 31.260 PRICE CODE CODE PRIX ISBN 978-2-8322-1044-4 Registered trademark of the I
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18、 62679-3-2 IEC:2013 CONTENTS FOREWORD . 4 1 Scope . 6 2 Abbreviations . 6 3 Overview 6 3.1 General . 6 3.2 Measuring equipment 6 3.3 Standard locations of measurement field . 7 3.3.1 Matrix displays 7 3.3.2 Segment displays 7 3.4 Initial reflectance light signal . 8 3.5 Standard DUT operating condit
19、ions . 9 3.5.1 General . 9 3.5.2 Response time. 9 3.5.3 Frame response 11 3.6 Electrical characteristics Rewriting electric energy . 15 3.6.1 Purpose . 15 3.6.2 Measuring instruments 15 3.6.3 Measuring method . 15 3.6.4 Explanation . 16 3.6.5 Specified conditions 17 3.7 Image retention duration 17 3
20、7.1 Purpose . 17 3.7.2 Measuring instruments 17 3.7.3 Measuring method . 17 3.7.4 Explanation . 18 3.7.5 Specified conditions 18 3.8 Electric power of keeping the image contrast . 19 3.8.1 Purpose . 19 3.8.2 Measuring instruments 19 3.8.3 Measuring method . 19 3.8.4 Explanation . 20 3.8.5 Specified
21、 conditions 20 3.9 Electric energy of keeping the image contrast for a certain time period 21 3.9.1 Purpose . 21 3.9.2 Measuring instruments 21 3.9.3 Measuring method . 21 3.9.4 Explanation . 22 3.9.5 Specified conditions 23 Bibliography 24 Figure 1 Measurement locations of display active area 7 Fig
22、ure 2 HL pattern 8 Figure 3 Sampling points . 8 Figure 4 An example of block diagram of an electronic paper display panel and module 10 Figure 5 Relationship between driving signal and optical response time . 10 62679-3-2 IEC:2013 3 Figure 6 An example of driving signal and frame response time (segm
23、ent) 13 Figure 7 An example of driving signal and frame response time (matrix) 14 Figure 8 Checkerboard pattern . 16 Figure 9 An example of block diagram for measuring the rewriting electric energy of an electronic paper display module . 16 Figure 10 Temporal characteristics of contrast ratio . 18 F
24、igure 11 Image contrast and driving mode 19 Figure 12 Image contrast, driving mode and measuring period . 22 4 62679-3-2 IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRONIC PAPER DISPLAY Part 3-2: Measuring method Electro-optical FOREWORD 1) The International Electrotechnical Commission
25、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 concerning standardization in the electrical and electronic fields. To this end and in addi
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35、be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62679-3-2 has been prepared by IEC technical committee 110: Electronic display devices. The text of this standard is based on the following documents: FDIS Rep
36、ort on voting 110/475/FDIS 110/502/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 62679 series,
37、 published under the general title Electronic paper display, can be found on the IEC website. 62679-3-2 IEC:2013 5 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data re
38、lated to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct unde
39、rstanding of its contents. Users should therefore print this document using a colour printer. 6 62679-3-2 IEC:2013 ELECTRONIC PAPER DISPLAY Part 3-2: Measuring method Electro-optical 1 Scope This part of IEC 62679 series is restricted to electronic paper display modules using either segment, passive
40、 or active matrix, and either monochromatic, or colour type displays. In order to achieve a useful and uniform description of the performance of these devices, specifications for commonly accepted relevant parameters are put forward. The purpose of this part of IEC 62679 series is to indicate and l
41、ist the procedure-dependent parameters and to prescribe the specific methods and conditions that are to be used for their uniform numerical determination. 2 Abbreviations DUT Device under test LMD Light measuring device PWM Pulse width modulation 3 Overview 3.1 General It is intended that the future
42、 IEC 62679-3-1 will cover the proper illumination method and optical measurement method to evaluate the electro-optical property of electronic paper display modules. If an electronic paper display module works in combination with an external touch-key-panel or an external front-light-unit, remove th
43、ose for measuring. If it is not possible to remove these elements, this fact shall be mentioned. However, it is not necessary to mention the protective sheet. It is assumed that all measurements are performed by personnel skilled in the general art of radiometric and electrical measurements as the p
44、urpose of this paper is not to give a detailed account of good practice in electrical and optical experimental physics. Furthermore, it is necessary to ensure that all equipment is suitably calibrated as is known to skilled personnel and that records of the calibration data and traceability are kept
45、 It is assumed that all measurements are performed under normal operation conditions as used in the finished product by the end user unless requested otherwise. This includes the driving signals (waveforms) of the electronic paper display panel and/or module. NOTE An electronic paper display module
46、 consists of an electronic paper display panel (electro-optical material, back plane, and driving circuit) and a logic circuit (see Figure 4). 3.2 Measuring equipment Luminance meter: the devices for measuring luminance can be realized by a spectro-radiometer with numerical V() correction 62679-3-2
47、IEC:2013 7 a photometer with filter adaption to V() where V() is the photopic response, as defined by the CIE 1931 standard observer in CIE/ISO 10527:1991. Colorimeter: devices for measuring colour can be realized by spectro-radiometer with numerical evaluation (spectrophotometer), filter-colorimete
48、r 3.3 Standard locations of measurement field 3.3.1 Matrix displays (1/10)H (3/10)H (5/10)H P19 P20 P21 P22 P23 P18 P6 P7 P8 P24 P16 P4 P3 P2 P10 P15 P14 P13 P12 P11 P17 P5 P9 P1 P0 (5/10)V(3/10)V(1/10)VIEC 2137/13 NOTE Standard measurement positions are at the centres of all rectangles P0 to P24. H
49、eight and width of each rectangle are 20 % of display active area height and width respectively. Figure 1 Measurement locations of display active area Luminance, spectral distribution and/or tristimulus measurements may be taken at several specified positions on the DUT surface. To this end, the front view of the display is divided into 25 identical imaginary rectangles (see Figure 1). Un
