BS IEC 61747-30-3:2019
$142.49
Liquid crystal display devices – Measuring methods for liquid crystal display modules. Motion artefact measurement of active matrix liquid crystal display modules
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 30 |
IEC 61747-30-3:2019(E) applies to transmissive type active matrix liquid crystal displays. This document defines general procedures for quality evaluation related to the motion performance of transmissive thin film transistor (TFT) LCDs. It defines artefacts in the moving image and methods for motion artefact measurement. NOTE Motion blur measurement methods and analysis methods introduced in this document are not universal tools for all the different LCD motion enhancement technologies due to their complexity. Users’ attention is drawn to this fact. This first edition cancels and replaces the first edition of IEC 61747-6-3 published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) added test positions and areas; b) revised standard measuring conditions; c) added calculation of the standard deviation of the line-spread function of the eye; d) added requirements for high speed camera; e) changed “LCDs” to “transmissive TFT LCDs” in Clause 1.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope 2 Normative references 3 Terms, definitions and abbreviated terms 3.1 Terms and definitions |
| 9 | 3.2 Abbreviated terms |
| 10 | 4 Standard measuring conditions 5 Standard motion blur measuring methods 5.1 General 5.2 Direct measurement method 5.2.1 Standard measuring process Figures Figure 1 – Examples of edge blur test pattern |
| 11 | Figure 2 – Example of a pivoting pursuit camera system Figure 3 – Example of a linear pursuit camera system |
| 12 | Figure 4 – Measurement regions for landscape orientation |
| 13 | Figure 5 – Measurement regions for portrait orientation Table 1 – Step response data for different luminance transitions |
| 14 | 5.2.2 Analysis method Figure 6 – Example of luminance cross-section profile of blurred edge time |
| 15 | Figure 7 – Example of luminance cross-section profile of extended blurred edge time Figure 8 – PBET calculation |
| 17 | 5.3 Indirect measurement method 5.3.1 Temporal step response Figure 9 – Set-up to measure the temporal step response |
| 18 | Figure 10 – Example of an LC response time measurement |
| 19 | 5.3.2 High speed camera Figure 11 – Example of a motion picture response curvederived from the response measurement presented in Figure 10and a convolution with a one-frame-wide window function |
| 20 | 6 Test report 6.1 General 6.2 Items to be reported |
| 21 | Figure 12 – Example of measurement data reporting |
| 22 | Annex A (informative)Subjective test method |
| 23 | Annex B (informative)Motion contrast degradation B.1 General B.2 Direct measurement Figure B.1 – Example of motion contrast degradation test pattern |
| 24 | B.3 Indirect measurement Figure B.2 – Example of motion contrast degradation due to line spreading |
| 25 | Annex C (informative)Dynamic modulation transfer function Figure C.1 – Example of motion contrast degradation |
| 26 | Figure C.2 – Example of DMTF properties for different motion speeds (V) |
| 27 | Bibliography |
