Should this be a whole Xxx level?
Viewing Distance: Fill Factor vs. Pixel Pitch vs. Angular Resolution
Viewing Angle - off axis x/y, impact of z-axis alignment
Viewing Position and Compression Artifacts
Burn-in and Module Replacement
Thermal wear, rework/hot air damage
Thermal Color Shift
Uneven thermal management (heat sink) can cause a spatial artifact, typically a pink/green or pink/cyan shift in a donut pattern around the module. Also shows PSU thermals if PSU is closely coupled or acts as an insulator to LDM.
LED on Camera
Timing: Frame Rate, Phase Offset, Refresh Rate, Shutter Angle, Multiplex Patterns
How to determine an LED display single refresh time
- Set shutter speed as fast as possible until the dark part of the image is actually black
- Increase shutter speed until the black lines disappear
- The current shutter speed is the base time of an LED image refresh. Multiples of this shutter speed will be additional speeds that will create a smooth image without scan artifacts