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BS IEC 62715-6-22:2023:2024 Edition

BS IEC 62715-6-22:2023:2024 Edition

$142.49

Flexible display devices – Crease and waviness measurement methods

Published By Publication Date Number of Pages
BSI 2024 32
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PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
6 FOREWORD
8 INTRODUCTION
9 1 Scope
2 Normative references
10 3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms
4 Standard atmospheric conditions
11 5 Preparation of specimen for measurement
5.1 General
5.2 Visual examination
5.3 Specimen preparation
12 Figures
Figure 1 – Step 1: Preparing the components of the specimen
Figure 2 – Step 2: Turning the back of the panel to face upward
Figure 3 – Step 3: Turning over the base plate and attaching it to the back of the panel
13 Figure 4 – Step 4: Turning over the base plate with the panel attached
Tables
Table 1 – Example of specimen preparation condition
14 5.4 Measurement location
5.4.1 General
5.4.2 Crease
5.4.3 Waviness
6 Measurement methods
6.1 General
Figure 5 – Example of measuring area
15 6.2 Purpose
6.3 Non-contact topography
6.3.1 General
6.3.2 Test apparatus
16 Figure 6 – Example of measurement system
Figure 7 – Analysis flow chart for PMD
17 Figure 8 – Surface normal vector N, sight ray of a camera p and reflected ray r
18 Figure 9 – Osculating circle and curvature
19 6.3.3 Measurement procedure
6.3.4 Data analysis and report
Figure 10 – Example of data distribution in the crease measuring area
20 Figure 11 – Example of data grouping on the vertical direction with folding axis
Figure 12 – Example of the Nth profile data
21 Figure 13 – Example of data distribution in the waviness measuring area
Table 2 – Example of crease data report using the PMD method
22 6.4 Non-contact profilometry
6.4.1 General
Figure 14 – Concept of filtering profile
Table 3 – Example of reporting waviness data
23 6.4.2 Test apparatus
Figure 15 – Schematic of the result of laser scanning
Figure 16 – Schematic diagram of the laser scanning apparatus
24 6.4.3 Measurement procedure
Table 4 – Example of laser scanning apparatus condition
25 6.4.4 Data analysis and report
Figure 17 – Example of position 1 and position 2 in the crease measuring area
26 6.5 Contact profilometry
6.5.1 General
6.5.2 Test apparatus
Figure 18 – Schematic diagram of the contact profilometry apparatus
Table 5 – Example of reporting crease data by the laser scanning method
27 Figure 19 – Schematic diagram of the motion of probe
Table 6 – Example of stylus condition
28 6.5.3 Measurement procedures
6.5.4 Data analysis and report
29 Bibliography

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BS IEC 62715-6-22:2023
$142.49