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Appendix B
Image Reference
An example of the primary version of the Persist image is shown below:
Test
Phosphor persistence
Purpose
The phosphors on the face of most CRTs continue to glow for a short period of time after
the electron beam has stopped energizing them. This phenomenon is called persistence.
A certain amount of persistence is desirable in most applications. It prevents a flickering of
a displayed image that most users would find objectionable. On the other hand, a CRT
with an overly long persistence time causes moving objects to leave a blurred trail.
Method
A flickering in the slower moving boxes indicates that the combination of refresh rate and
phosphor persistence is not suitable for long-term viewing.
A fading tail left behind by the faster moving boxes indicates that the display may not be
suitable for viewing animated images.
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Страница 52: ...42 Chapter 2 Testing Video Displays ...
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Страница 118: ...108 Chapter 7 Using GPIB Interface ...
Страница 194: ...184 Chapter 10 Testing EDID ...
Страница 204: ...194 Chapter 11 Testing HDCP ...
Страница 213: ...Video Test Generator User Guide 203 A Command Reference Topics in this appendix Commands by name ...
Страница 214: ...204 Appendix A Command Reference Commands by name ...
Страница 303: ...Video Test Generator User Guide 293 Example 7 Turn audio off DPTG 3 DPGU Example 8 Turn audio on DPTG 7 DPGU ...
Страница 595: ...Video Test Generator User Guide 585 ...
Страница 608: ...598 Appendix A Command Reference Related commands YMDO UNPK PKUP VTOF FLSH Example YMDI YMODEM BATCH upload ...
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Страница 612: ...602 Appendix A Command Reference ...
Страница 613: ...802BT 802R Video Test Generator User Guide 603 B Image Reference Topics in this appendix Standard image descriptions ...
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Страница 744: ...734 Appendix C Error Messages ...