我引用其中部分內容 "e-Shift and 4K input capability don't improve picture quality." *The Epson 4K projectors are not "True" 4k they use Epson's 4K Enhancement Technology (similar to JVC’s E-shift up-scaling) this shifts each pixel diagonally by 0.5 pixels. The effect increases the apparent resolution so it's looking a lot like 3840 × 2160 or 4K.
The EH TW8300 is basically a TW8200 with 4K up-scaling and lens memory. Watching most currently available 1080P HD content we doubt many could justify the extra price of the EH TW8300 for the viewing improvement. If you have a lot of 4K to watch that's another matter. Note 4k is not available for 3D content, we don't recommend a wireless connection either.
It's worth noting that Epson's TW8300 / TW9300 (along with other "Psuedo 4k projectors) can't use the 4K logo because they don't conform to the 4k standard.
其中有段話真的解決我當時覺得TW7300解析度沒有4K感覺的疑惑 All models are "4K e-Shift4" which shifts the pixels from the 1080p D-ILA (LCOS) chips horizontally and vertically by half a pixel to project 3,840x2,160 resolution on screen 投在螢幕上只有3840x2160的一半，這樣10萬的價格就反而讓我有點難入手