BS EN IEC 63181-2:2020
$102.76
LCD multi-screen display terminals – Measuring methods
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 22 |
IEC 63181-2:2020 specifies measuring methods for LCD multi-screen display terminals. To evaluate the characteristics of LCD multi-screen display terminals, the following measurement items are specified: – gap (physical, optical): detailed splicing precision; – splicing deviation: splicing accuracy of active areas of LCD splicing screen; – installation deviation: the flatness of terminal surfaces in vertical and horizontal directions; – luminance uniformity: luminance uniformity of adjacent LCD units; – chromatic uniformity: chromatic uniformity of adjacent LCD units.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 5 | Annex ZA(normative)Normative references to international publicationswith their corresponding European publications |
| 7 | English CONTENTS |
| 8 | FOREWORD |
| 10 | 1 Scope 2 Normative references 3 Terms and definitions 4 Measuring conditions 4.1 Standard measuring environmental conditions |
| 11 | 4.2 Optical measuring distance 5 Measurement methods of structure test for LCD multi-screen display terminals 5.1 Physical gap 5.1.1 General 5.1.2 Method of measurement |
| 12 | 5.2 Optical gap 5.2.1 General 5.2.2 Method of measurement 5.3 Splicing deviation 5.3.1 General Figures Figure 1 – Illustration for physical gap and optical gap |
| 13 | 5.3.2 Method of measurement 5.4 LCD multi-screen display terminals installation deviation 5.4.1 General Figure 2 – Illustration for test signal |
| 14 | 5.4.2 Method of measurement Figure 3 – Illustration for diagonal distances |
| 15 | 6 Measuring methods of LCD multi-screen display terminals’ optical-electrical performance 6.1 Measuring methods of LCD multi-screen display terminals’ luminance – uniformity 6.1.1 LCD splicing screen luminance uniformity Figure 4 – Illustration for ∠EBD |
| 16 | 6.1.2 Luminance uniformity of adjacent LCD units Figure 5 – Illustration for testing units |
| 17 | Figure 6 – Example for luminance measurements of edge-centre point pairs |
| 18 | 6.2 Measuring methods of chromatic uniformity for LCD splicing screen 6.2.1 Chromatic uniformity of centre points of LCD units 6.2.2 Chromatic uniformity of adjacent edge-centre points of adjacent LCD units Table 1 – Example for luminance performance calculationof edge-centre point pairs P1~4 |
| 20 | Bibliography |
