1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationLiquid crystal display devicesPart 4: Liquid crystal display modules and cells Essential ratings and characteristicsBS EN 61747-4:2012Copyright European Committee for Electrotech
2、nical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-National forewordThis British Standard is the UK implementation of EN 61747-4:2012. It is identical to IEC 61747-4:2012. It supersedes BS EN 61747-4:1998
3、 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee EPL/47, Semiconductors.A list of organizations represented on this committee can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 secretary.This publication does not purport to include all the necessary provisions of a con
4、tract. Users are responsible for its correct application. The British Standards Institution 2013.Published by BSI Standards Limited 2013 ISBN 978 0 580 75543 9 ICS 31.120 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the au
5、thority of the Standards Policy and Strategy Committee on 31 January 2013.Amendments issued since publicationDate Text affectedBRITISH STANDARDBS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction o
6、r networking permitted without license from IHS-,-,-EUROPEAN STANDARD EN 61747-4 NORME EUROPENNE EUROPISCHE NORM December 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management C
7、entre: Avenue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61747-4:2012 E ICS 31.120 Supersedes EN 61747-4:1998 English version Liquid crystal display devices - Part 4: Liquid crystal display m
8、odules and cells - Essential ratings and characteristics (IEC 61747-4:2012) Dispositifs daffichage cristaux liquides - Partie 4: Modules et cellules daffichage cristaux liquides - Valeurs limites et caractristiques essentielles (CEI 61747-4:2012) Flssigkristall-Anzeige-Bauelemente - Teil 4: Flssigkr
9、istall-Anzeigemodule und -zellen -Wesentliche Grenz- und Kennwerte (IEC 61747-4:2012) This European Standard was approved by CENELEC on 2012-10-31. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the statu
10、s 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 versions (English, French,
11、 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 committees of Austria, Be
12、lgium, 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, Slovenia, Spain, Swed
13、en, Switzerland, Turkey and the United Kingdom. BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 61747-4:2012 - 2 - Foreword The text of
14、document 110/349/CDV, future edition 2 of IEC 61747-4, prepared by IEC/TC 110 “Electronic display devices“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61747-4:2012. The following dates are fixed: latest date by which the document has to be implemented at national lev
15、el by publication of an identical national standard or by endorsement (dop) 2013-07-31 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2015-10-31 This document supersedes EN 61747-4:1998. EN 61747-4:2012 includes the following significant technica
16、l changes with respect to EN 61747-4:1998: 2.1 and 3.1 of EN 61747-4:1998 were deleted because these items are defined in EN 61747-1; 2.7.6, in 2.7, Supplementary information, of EN 61747-4:1998 was deleted because the scope of this standard is about passive matrix monochrome liquid crystal display
17、modules; the item “Gray scale: digital or analog” in 2.3.1 of EN 61747-4:1998 was changed to “Gray scale: number” because it is more accurate; contrast mode: light symbol on dark background (“LOD” or “positive image”) or dark symbol on light background (“DOL” or “negative image”) was introduced in t
18、his part of EN 61747 to replace the description in 2.3.1 and 3.3.1 of EN 61747-4:1998. 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.
19、 Endorsement notice The text of the International Standard IEC 61747-4:2012 was approved by CENELEC as a European Standard without any modification. BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduc
20、tion or networking permitted without license from IHS-,-,- 3 - EN 61747-4:2012 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indi
21、spensable 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 been modified by common modifications, indicated by (mod), the rel
22、evant EN/HD applies. Publication Year Title EN/HD Year IEC 61747-1 1998 Liquid crystal and solid-state display devices - Part 1: Generic specification EN 61747-1 1999 BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for
23、 ResaleNo reproduction or networking permitted without license from IHS-,-,- 2 61747-4 IEC:2012 CONTENTS 1 Scope . 5 2 Normative references . 5 3 Liquid crystal display modules 5 3.1 Principles and material used 5 3.2 Modes of operation 5 3.3 Details of outline . 5 3.4 Limiting values (absolute maxi
24、mum rating system) over the operating temperature range, unless otherwise stated 6 3.5 Electrical and optical characteristics 6 3.6 Supplementary information 7 4 Liquid crystal display cells (LCD cells) 8 4.1 Principle and material used . 8 4.2 Modes of operation 8 4.3 Details of outline . 8 4.4 Lim
25、iting values (absolute maximum rating system) over the operating temperature range, unless otherwise stated 8 4.5 Electrical and optical characteristics 9 4.6 Supplementary information 9 Table 1 Electrical and optical characteristics of LCD modules 6 Table 2 Electrical and optical characteristics of
26、 LCD cells 9 BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-61747-4 IEC:2012 5 LIQUID CRYSTAL DISPLAY DEVICES Part 4: Liquid crystal displ
27、ay modules and cells Essential ratings and characteristics 1 Scope This part of IEC 61747 describes the essential ratings and characteristics of LCD cells and passive matrix monochrome liquid crystal display modules. It does not apply to active matrix LCD cells nor to multicolour cells. 2 Normative
28、references 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) appli
29、es. IEC 61747-1:1998, Liquid crystal and solid-state display devices Part 1: Generic specification 3 Liquid crystal display modules 3.1 Principles and material used Example: a TN display cell with electronic circuits and connector pins. Where appropriate, a type of light source. 3.2 Modes of operati
30、on 3.2.1 Optical mode of operation illumination mode: for example reflective, transmissive, transflective gray scale: number contrast mode: light symbol on dark background (“LOD” or “positive image”) or dark symbol on light background (“DOL” or “negative image”) 3.2.2 Electrical mode of operation ex
31、ample: static mode or multiplex mode, etc. 3.3 Details of outline 3.3.1 Material, mechanical description examples: glass, plastic, metal, etc. construction: for example integrated backlight, bezel structure 3.3.2 Method of connection connector, flex cable or connection pins, etc. BS EN 61747-4:2012C
32、opyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 6 61747-4 IEC:2012 3.3.3 Outline drawing and dimensions overall dimensions viewing area and display centre 3.
33、3.4 Pinout table and/or connection diagram type of connectors 3.3.5 Preferred or designed viewing direction 3.4 Limiting values (absolute maximum rating system) over the operating temperature range, unless otherwise stated 3.4.1 Minimum and maximum operating temperature (Top) 3.4.2 Minimum and maxim
34、um storage temperature (Tstg) 3.4.3 Minimum and maximum value of supply voltages for logic and LCD drive (VDD-VSS，VDD-VEE，VEE-VSS，VO-VSS，VDD-VO) 3.4.4 Minimum and maximum value of input signal voltage (VIN) 3.4.5 Where appropriate, maximum value of backlight voltage (VBL) 3.4.6 Where appropriate, ma
35、ximum soldering temperature (Tsld) maximum soldering time and minimum distance to module package should be specified 3.5 Electrical and optical characteristics The following parameters should be specified in Table 1. Table 1 Electrical and optical characteristics of LCD modules Reference Characteris
36、tics Condition at Top= 25 C unless otherwise specified Symbol Requirements 3.5.1 Supply voltage for logic drive Supply voltage for LCD drive VDD-VSSMin. Max. VDD-VEEVEE-VSSVO-VSSVDD-VO3.5.2 Input signal voltages High level input signal voltage Low level input signal voltage VINVIHVILMin. Max. 3.5.3
37、Backlight voltages (where appropriate) VBLMin. Max. 3.5.4 Operating frequency (where appropriate) Frame frequency Oscillator frequency fopfFRMfOSCMin. Max. 3.5.5 Supply currents (without backlight) Conditions chosen to achieve maximum supply current, e.g. operating supply voltage, display pattern, e
38、tc., as appropriate ItotIDDand/or IEEMax. BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-61747-4 IEC:2012 7 Reference Characteristics Cond
39、ition at Top= 25 C unless otherwise specified Symbol Requirements 3.5.6 High level input signal current (where appropriate) IIHMax. 3.5.7 Low level input signal current (where appropriate) IILMax. 3.5.8 Operating backlight current (where appropriate) IBLMax. 3.5.9 Contrast ratio (diffused light and/
40、or direct beam) When the module has a backlight system, this system shall be used at a specified level during the contrast ratio measurements CRdiffCRdirMin. 3.5.10 Luminance (where appropriate) Specified measuring method and conditions L Min. 3.5.11 Viewing angle range Specified definition of viewi
41、ng direction and specified contrast ratio Vand HMin. Max. 3.5.12 Turn-on time Specified temperature tonMax. 3.5.13 Turn-off time Specified temperature toffMax. 3.5.14 Transmittance (regular and/or diffuse) (where appropriate) Specified measuring method and conditions r and/or dMin. 3.5.15 Reflectanc
42、e (regular and/or diffuse) (where appropriate) Specified measuring method and conditions rand/or dMin. Max. 3.6 Supplementary information (To be given only as far as necessary for the specification and use of the device.) 3.6.1 Angular dependence of contrast ratio 3.6.2 Switching times versus temper
43、ature 3.6.3 Timing characteristics and timing of logic voltages 3.6.4 Supply voltages sequence condition, where appropriate 3.6.5 Operating voltage range, if appropriate, as a function of temperature at specified contrast ratio 3.6.6 Handling and operating information 3.6.7 Precautions with respect
44、to electrostatic discharges 3.6.8 Precautions of installation: mechanical and/or electrical 3.6.9 Safety information 3.6.10 Characterization of diffuse and specular reflectance and transmittance BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standardization Provided by IHS under
45、 license with CENELECNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- 8 61747-4 IEC:2012 4 Liquid crystal display cells (LCD cells) 4.1 Principle and material used Example: twisted nematic cell 4.2 Modes of operation 4.2.1 Optical mode of operation illumination mod
46、e: for example reflective, transmissive, transflective contrast mode: light symbol on dark background (“LOD” or “positive image”) or dark symbol on light background (“DOL” or “negative image”) 4.2.2 Electrical mode of operation Static mode or multiplex mode 4.3 Details of outline 4.3.1 Mechanical de
47、scription Example: glass or plastic 4.3.2 Method of connection 4.3.3 Outline drawing Dimensions and display pattern 4.3.4 Pinout table and/or connection diagram 4.3.5 LCD cell reference axis for definition of viewing angle 4.3.6 Recommended viewing direction 4.4 Limiting values (absolute maximum rat
48、ing system) over the operating temperature range, unless otherwise stated 4.4.1 Minimum and maximum storage temperatures (Tstg) 4.4.2 Minimum and maximum operating temperatures (Top) 4.4.3 Maximum ambient humidity (RH) 4.4.4 Minimum and maximum atmospheric pressure outside 4.4.5 Maximum mechanical shock 4.4.6 Maximum vibration 4.4.7 Maximum acceleration 4.4.8 Maximum bending strength of the cell 4.4.9 Maximum torsional strength of the cell BS EN 61747-4:2012Copyright European Committee for Electrotechnical Standa
