The manufacturers I am looking at have 2K/4K (Sony/Sharp) but will only support a maximum input of WUXGA and forgive me for being thick I do not understand why they are stating 4K when the inputs are limited to <2K? I see this as a limitation for installs where they may have a true 4K source sometime in the near future with a dedicated PC? (will we not just be playing a scaling game??.? Scaling for Res and scaling to accommodate refresh rates?
Not knowing the models you speak of, I can only surmise that if they have multiple inputs (i.e. 4xHDMI/DP/DVI), they may be playing marketing games.
If you have a 4 output graphics card that supports windows spanning and it puts 1/4 of the screen at 1080p on each output, then it gets plugged into the 4 inputs of the TV, and the TV puts them all back together again as one image, then yes, they could accurately state that the "display" supports 4K resolutions while each "input" is limited to 1080p/HD and WUXGA PC resolution.
One thing to understand about 4K is that it's deeply buried in marketing speak so you must talk resolutions.
4096x2160, or Digital Cinema, is the only true 4K resolution, but that doesn't stop the term "4K" from being abused.
3840x2160, or UHD, is not technically 4K, but it is often referred to in marketing as such. It is also the only one of the two that complies with the Full HD 16:9 aspect ratio and scales easily between 1080p and 720p.
HTH, Jeff
-- Jeff Klein, DMC-E Head Volunteer Sound Geek Faith Baptist Church Glen Burnie, Maryland
?/ @FBC_TechTeam ?/ @7thVoiceMusic
"Clothe yourselves, all of you, with humility toward one another, for God opposes the proud but gives grace to the humble." 1 Peter 5:5
