BS IEC 62908-12-10:2017:2018 Edition
$167.15
Touch and interactive displays – Measurement methods of touch displays. Touch and electrical performance
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 38 |
This part of IEC 62908 specifies the standard measuring conditions and methods for determining touch performance of a touch sensor module. This document is applicable to touch sensor modules, where the structural relationship between touch sensor, touch controller, touch sensor module, display panel, touch display panel, and touch display module is defined in IEC 62908-1-2.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 7 | FOREWORD |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Measuring conditions 4.1 Standard measuring environmental conditions |
| 10 | 4.2 Standard atmospheric conditions for reference measurements and tests 4.3 Standard positioning equipment and setup Tables Table 1 – Standard conditions for reference measurements and tests |
| 11 | 4.4 Human operator alternative to standard positioning equipment Figures Figure 1 – Composition of test equipment Figure 2 – Concept of performance measurement |
| 12 | 4.5 Test bar size, shape and material parameters Figure 3 – Example of manual test tool (left), positioning without triggering a touch event (middle) and recording a touch event (right) Figure 4 – Examples of test bars |
| 13 | 5 Touch performance measuring methods 5.1 General 5.2 Accuracy test 5.2.1 Purpose 5.2.2 Test procedure |
| 14 | Figure 5 – Location of edge area and centre area Figure 6 – Point grid |
| 15 | Figure 7 – Accuracy definition |
| 17 | 5.2.3 Report 5.3 Repeatability/jitter test 5.3.1 Purpose 5.3.2 Test procedure Figure 8 – Example of measurement result and calculation of accuracy |
| 18 | Figure 9 – Repeatability in touch sensor module |
| 19 | 5.3.3 Report Figure 10 – Example of measurement result for repeatability |
| 20 | 5.4 Linearity test 5.4.1 Purpose 5.4.2 Test procedure Figure 11 – Dragging line for linearity test |
| 21 | Figure 12 – Linearity definition |
| 22 | 5.4.3 Report 5.5 Reproducibility test 5.5.1 Purpose Figure 13 – Example of measurement and calculation of linearity |
| 23 | 5.5.2 Test procedure Figure 14 – Example of reproducibility test results |
| 24 | 5.5.3 Report Figure 15 – Reproducibility test procedure |
| 25 | 5.6 Signal-to-noise ratio (SNR) test 5.6.1 Purpose Figure 16 – Examples of measurements of reproducibility – Velocity dependence |
| 26 | 5.6.2 Test procedure Figure 17 – SNR definition concept |
| 27 | 5.6.3 Report 5.7 Report rate test 5.7.1 Purpose 5.7.2 Test procedure Figure 18 – Dragging direction for reporting time measurement |
| 28 | 5.7.3 Report 5.8 Latency test 5.8.1 Purpose 5.8.2 Test procedure Figure 19 – Reporting time interval measurement Figure 20 – Latency measurement |
| 29 | 5.8.3 Report 5.9 Electrical noise immunity test 5.9.1 Purpose 5.9.2 Test procedure Figure 21 – Example of the effect of external noise |
| 30 | 5.9.3 Report 5.10 Water droplet immunity test 5.10.1 Purpose Figure 22 – External noise injection Figure 23 – Report of external noise immunity |
| 31 | 5.10.2 Test procedure 5.10.3 Report 5.11 Optical noise immunity test 5.11.1 Purpose Figure 24 – Example of water drop effect Figure 25 – Water droplet test procedure |
| 32 | 5.11.2 Test procedure 5.11.3 Report 5.12 Power consumption test 5.12.1 Purpose 5.12.2 Test procedure 5.12.3 Report 5.13 Perpendicular touch/hover distance test 5.13.1 Purpose 5.13.2 Test procedure |
| 33 | 5.13.3 Report Figure 26 – Perpendicular touch/hover distance measurement |
| 34 | Annex A (informative)Electrical performance measuring methods of touch sensors A.1 Resistance A.1.1 General A.1.2 Test samples A.1.3 Measurement equipment A.1.4 Procedures Table A.1 – Specification of LCR impedance meter |
| 35 | A.1.5 Data analysis A.1.6 Report A.2 Trans-capacitance A.2.1 General A.2.2 Test samples A.2.3 Measurement equipment A.2.4 Procedure Figure A.1 – Diagrammatic representation of measurement of resistance |
| 36 | A.2.5 Data analysis A.2.6 Report Figure A.2 – Diagrammatic representation of measurement of capacitance |
