BS EN 120007-1991 Harmonized system of quality assessment for electronic components - Blank detail specification - Liquid crystal displays - Monochrome LCDs without electronic circ.pdf

1、BRITISH STANDARD BS EN 120007:1993 Incorporating Amendment No. 1 Specification for Harmonized system of quality assessment for electronic components Blankdetail specification Liquid crystal displays Monochrome LCDs without electroniccircuit The European Standard EN 120007:1992 has the status of a Br

2、itish Standard.BSEN120007:1993 BSI 01-2000 ISBN 0 580 35667 1 Amendments issued since publication Amd. No. Date of issue Comments 8006 October 1993 Indicated by a sideline in the marginBSEN120007:1993 BSI 01-2000 i Contents Page National foreword ii Foreword 2 1 Mechanical description 3 2 Short desc

3、ription 3 3 Level (s) of quality assessment 3 4 Limiting values 4 5 Operating range and electrical and optical characteristics 4 6 Marking 6 7 Ordering information 7 8 Test conditions and inspection requirements 7 9 Additional information 11 Figure 9.1 Isocontrast diagram 11BSEN120007:1993 ii BSI 01

4、-2000 National foreword This British Standard has been prepared under the direction of the Electronic Components Standards Policy Committee. It is identical with CENELEC Electronic Components Committee (CECC)20007:1991 “Harmonized system of quality assessment for electronic components. Blank detail

5、specification: Liquid crystal displays monochrome LCDs without electronic circuit”. This standard is a harmonized specification within the CECC system. In1992 the CENELEC Electronics Components Committee (CECC) accepted CECC20007:1991 as European Standard EN120007:1992. Cross-references The British

6、Standard which implements CECC00100 is BS9000 “General requirements for a system for electronic components of assessed quality” Part2:1983 “Specification for national implementation of CECC basic rules and rules of procedure”. The international text omits to state that the notations IL and AQL refer

7、 to Inspection Level and Acceptable Quality Level respectively, and that these are selected from, and in accordance with IEC410. The corresponding British Standard is BS6001 “Sampling procedures for inspection by attributes” Part1:1972 “Specification for sampling plans indexed by Acceptable Quality

8、Level (AQL) for lot-by-lot inspection”, which is technically equivalent. Scope This standard lists the ratings, characteristics and inspection requirements which are to be included as the minimum mandatory requirements in detail specifications written in accordance with BSCECC20000. Detail specifica

9、tion layout In the event of conflict between the requirements of this specification and the provisions of BS9000 the latter shall take precedence, except that the front pagelayout shall be in accordance with PD9004:1989,CECC and IECQ administrative guide, Circular Letter No. 15. A British Standard d

10、oes not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. International Standard Corresponding British Standard CECC 20

11、000:1982 BS CECC 20000:1983 Harmonized system of quality assessment for electronic components. Generic specification: semiconductor optoelectronic and liquid crystal devices (Identical) Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, p

12、ages 2 to 11 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 120007 May 1992 UDC: Supersedes CECC 20007 Issue 1

13、:1991 Descriptors: Quality, electronic components, LCDs English version Blank Detail Specification: Liquid crystal displays Monochrome LCDs without electronic circuit Spcification Particulire Cadre: Dispositifs de visualisation cristaux liquides LCD monochromes sans circuit lectronique Vordruck fr B

14、auartspezifikation: Flssigkristallanzeigen Monochrome LCDs ohne Ansteuerelektronik This European Standard was approved by the CENELEC Electronic Components Committee (CECC) on 20February1992. CENELEC members are bound to comply with CEN/CENELEC Internal Regulations which stipulate the conditions for

15、 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 General Secretariat of the CECC or to any CENELEC member. This European Standard exists in

16、 three 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 CECC General Secretariat has the same status as the official versions. CENELEC members are the national elect

17、rotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and United Kingdom. The membership of the CECC is identical, with the exception of the national electrotechnical comm

18、ittees of Greece, Iceland and Luxembourg. CECC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1992 Copyright reserved to CENELEC members

19、Ref. No. EN 120007:1992 EEN120007:1992 BSI 01-2000 2 Foreword The CENELEC Electronic Components Committee (CECC) is composed of those member countries of the European Committee for Electrotechnical Standardization (CENELEC) who wish to take part in a harmonized System for electronic components of as

20、sessed quality. The object of the System is to facilitate international trade by the harmonization of the specifications and quality assessment procedures for electronic components, and by the grant of an internationally recognized Mark, or Certificate, of Conformity. The components produced under t

21、he System are thereby acceptable in all member countries without further testing. This specification has been formally approved by the CECC, and has been prepared for those countries taking part in the System who wish to issue national harmonized specifications for LIQUID CRYSTAL DISPLAYS. It should

22、 be read in conjunction with the current regulations for the CECC System. At the date of printing of this specification, the member countries of the CECC are Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the Uni

23、ted Kingdom. Preface This blank detail specification was prepared by CECC WG 20: Semiconductor optoelectronic and liquid crystal devices. It is based, wherever possible, on the Publications of the International Electrotechnical Commission. The text of this specification was circulated to the CECC fo

24、r voting in the document indicated below and was ratified by the President of the CECC for printing as a CECC Specification. This European Standard was prepared by CECCWG20, “Opto-Electronic Components and Liquid Crystal Devices”. The text of the draft based on document CECC20007 Issue1:1991 was sub

25、mitted to the formal vote for conversion to a European Standard; together with the voting report, circulated as document CECC(Secretariat)3026 it was approved by CECC as EN120007on20February1992. The following dates were fixed: Document Date of Voting Report on the Voting CECC(Secretariat)2090 Janua

26、ry 1988 CECC(Secretariat)2201 latest date of announcement of theEN at national level (doa) 1993-02-16 latest date of publication of an identical national standard (dop) 1993-08-16 latest date of declaration of nationalstandards obsolescence 1993-08-16 latest date of withdrawal of conflicting nationa

27、l standards (dow) 2003-02-16EN120007:1992 BSI 01-2000 3 LIQUID CRYSTAL DISPLAYS Name (address) of responsible ONH (1) Page 3 of 11 CECC 20007 xxx (2) (and possibly of body from which specification is available) CECC detail specification number plus issue number and/or date ELECTRONIC COMPONENT OF AS

28、SESSED QUALITY IN ACCORDANCE WITH: (3) National number of detail specification. This box may not be used if National number includes CECC number (4) CECC 20000, issue and national references ifdifferent 1 Mechanical description (7) DETAIL SPECIFICATION FOR: (5) Type number (s) of relevant device (s)

29、 and, if appropriate structurally similar devices ORDERING INFORMATION: see clause 7 of this specification OUTLINE DRAWING AND DIMENSIONS 2 Short description (6) e.g. outline overall Monochrome LCD without electronic circuit viewing area symbols Type of display: e.g. character, dot matrix Principle

30、and material used: e.g. TN-cell Optical mode of operation: CONNECTION TYPE illumination mode: pin identification reflective, transflective, transmissive without connector coloured or monochrome with connector e.g. bonded pin snap-on pin elastomeric flexible board image mode: bright symbols on dark b

31、ackground (negative) dark symbols on bright background (positive) Electrical mode of operation, preferred viewing direction: MARKING see 2.5 of CECC 20000 e.g. static mode; multiplex mode with/without heater APPLICATION e.g. indoor or outdoor DIRECTION of front polarization 3 Level (s) of quality as

32、sessment if relevant (8) NOTETexts between brackets give guidelines how to fill in the blank detail specification. Information about manufacturers who have components qualified to this detail specification is available in the current CECC 00200: Qualified Products List.EN120007:1992 4 BSI 01-2000 4

33、Limiting values (Absolute maximum rating system) (9) These apply over the operating temperature range unless otherwise stated. X denotes that a value shall be inserted in the detail specification Clause CECC 20007 Repeat only clause numbers used, with text. Additional values, if any, shall be given

34、at the appropriate place without clause number (s). Curves should preferably be given in clause 9 of this specification Symbol Value Unit min max 4.1 Climatic ratings 4.1.1 Operating ambient temperature Tamb X X C 4.1.2 Storage temperature Tstg X X C 4.1.3 Soldering temperature Tsld X C soldering co

35、nditions (where appropriate) 4.1.4 Humidity R.H. X % 4.2 Mechanical ratings 4.2.1 Atmospheric pressure p X X hPa 4.2.2 Shock g X cm/s 2 4.2.3 Vibration g X cm/s 2 4.2.4 Acceleration g X cm/s 2 4.2.5 Bending Strength of the cell X 4.2.6 Torsional Strength of the cell X Nm 4.3 Electrical ratings 4.3.1

36、 RMS-Value of the operating voltage eg. square wave V op(rms) X V 4.3.2 Peak to Peak Voltage V pp X V 4.3.3 DC-Voltage offset of operating voltage V dc X V 5Operating range and electrical and optical characteristics See clause 8 of this document for inspection requirement (Groups A and C) 5.1 Recomm

37、ended operation range (referred for specified viewing and contrast conditions). Seefigures. Symbol Value Unit min max 5.1.1 Operating voltage range in the recommended operation mode at T amb= 25 C V op(rms) X X V 5.1.2 operating frequency range in the recommended operation mode at T amb= 25 C f X X

38、Hz 5.1.3 Operating temperature range at specified V op T amb X X CEN120007:1992 BSI 01-2000 5EN120007:1992 6 BSI 01-2000 6 Marking Any particular information other than given in box(7) on page 3 and/or2.5 ofCECC20000 shall be specified here. 5.2 Electrical and optical characteristics Signs between b

39、rackets correspond to characteristics given as “where appropriate” or as alternatives: Those characteristics marked “where appropriate” in this clause and in the inspection section shall either be omitted or, if specified, shall then be measured. For equivalent characteristics given as alternatives,

40、 the choice should preferably be left open to allow the use of the same detail specification by different manufacturers or countries. Repeat only clause numbers used, with text. Any additional characteristics to be given at appropriate place but without clause number. When several devices are define

41、d in the same detail specification, the relevant values should be given on successive lines, avoiding repetition of identical values. Clause CECC 20007 Measured Characteristics and conditions, at Tamb = 25 C unless otherwise stated Symbol Value Unit min max 5.2.1 A3 Threshold voltage at specified vi

42、ewing angle and at 10 % of max. relative contrast V th X X V 5.2.2 A3 Saturation voltage at specified viewing angle and at 90 % of max. relative contrast V sat X X V 5.2.3 Operating current at specified frequency and operating voltage all segments operating I s X 4A 5.2.4 C2a DC-Resistance (at speci

43、fied voltage) all segments connected R tot X M7 5.2.5 C2a Capacitance (at specified voltage and for a specified connection) all segments connected C tot X nF 5.2.6 A2b Contrast ratio at specified viewing angles and electrical mode of operation CR X 5.2.7 A2b Turn on time at specified electrical mode

44、 of operation; (T ambspecified) t on1 X ms 5.2.8 Turn on time at specified electrical mode of operation at T amb min t on2 X ms 5.2.9 A2b Turn off time at specified electrical mode of operation; (T ambspecified) t off1 X ms 5.2.10 Turn off time at specified electrical mode of operation at T amb min

45、t off2 X ms 5.2.11 Transmission factor of the non activated display; The transmission/reflection factors should be measured in C2b where appropriate. X 5.2.12 Reflection factor of the non activated display; The transmission/reflection factors should be measured in C2b where appropriate. X X 5.2.13 C

46、2b Angular contrast distribution. Specified isocontrast diagram and minimum contrast ratio (see 9.1) XEN120007:1992 BSI 01-2000 7 7 Ordering information The following minimum information is necessary to order a specified device, unless otherwise specified: precise type number CECC reference of detai

47、l specification with issue number and/or date when relevant any other particulars. 8 Test conditions and inspection requirements These are given in the following tables, where the values and exact test conditions to be used should be specified as required for a given type, and as required by the rel

48、evant test in CECC20000. When several devices are included in the same detail specification, the relevant conditions and/or values should be given on successive lines, where possible avoiding repetition of identical conditions and/or values. The choice between alternative tests should preferably be

49、left open, unless very sound technical reasons forbid this, although such tests are not strictly equivalent, they were meant to achieve the same results: assess the correct manufacture of a device; alternatives were provided to take into account different equipments or methods of measurement used in various countries. In this section, reference to clause numbers are made with respect to CECC20000, unless otherwise stated. GROUP A Lot by Lot All tests are non destructive (