IEC 61988-2-6:2015(E) defines the measuring methods for gamma and colour gamut characteristics as a function of the APL for a PDP module (plasma display module). Generally, the luminance level of a PDP module is dependent on the APL (average picture level) of input images. Varying the input levels causes a change of the chromaticity of RGB primary colours. This standard also defines the measuring methods of tone characteristics and chromaticity characteristics with varying APLs. This standard is based on the assumption that the inverse-gamma circuit is inside the module.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 4<\/td>\n | CONTENTS <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 3.1 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.2 Abbreviations 4 Measurement equipment 4.1 Video signal generator 4.2 Non-contact LMD (light measurement device) 4.3 Contact LMD 5 Measurement conditions 5.1 General 5.2 Setup conditions <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 5.3 Measuring layout Figures Figure 1 \u2013 Measuring layout for non-contact measurement <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.4 Input signal level and picture level Figure 2 \u2013 Measuring layout for contact measurement <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 6 Measuring methods of tone characteristics 6.1 Purpose Figure 3 \u2013 Input signals and signal processing in a PDP module <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 6.2 Input signals 6.2.1 General 6.2.2 11-step grey bar with fixed APL <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 6.2.3 Single grey window with fixed APL Figure 4 \u2013 An example of an 11-step grey-bar pattern Figure 5 \u2013 Example of 4\u00a0% window pattern for measuring the tone characteristics <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 6.2.4 11-step RGB bar and single colour window with fixed APL Figure 6 \u2013 RGB bar and single window pattern <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 6.3 Measuring procedure <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 6.4 Expression of results 6.4.1 Measurement report Figure 7 \u2013 An example of results of gamma characteristics for each APL Tables Table 1 \u2013 An example of a tone measurement report <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 6.4.2 Gamma calculation <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Figure 8 \u2013 Example plots for calculated gamma values by APL Table 2 \u2013 Example of gamma reporting form (for each APL ) <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Figure 9 \u2013 Example plots for CCT characteristics by APL Figure 10\u00a0\u2013\u00a0Example plots for \u2206u\u2019v\u2019 characteristics by APL <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 7 Measuring methods of colour gamut by APL 7.1 Purpose 7.2 Primary and secondary colour patterns by APL 7.3 Measuring procedure Figure 11 \u2013 4 % C, M, and Y single window pattern <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 7.4 Evaluation of colour accuracy 7.5 Evaluation of colour gamut Figure 12 \u2013 ITU-R Rec. BT.709-5 standard coordinates of primary and secondary colours <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 7.6 Expression of results Figure 13 \u2013 Example showing a measured primary, a reference, and an overlapped gamut area Table 3 \u2013 An example of gamut areas for evaluation of colour gamut <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Table 4 \u2013 An example of primary and secondary colour measurement report <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 14 \u2013 The measured colour gamut plots by APL <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Annex A (informative) Use of ITU-R Rec. BT.709-5 signal Table A.1 \u2013 Digital data and signal level in ITU-R Rec. BT.709-5 <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Plasma display panels – Measuring methods. APL dependent gamma and colour characteristics<\/b><\/p>\n |