No te enciendas que como siempre depende de quien lo escriba.
Como podras leer aqui es la propia JVC quien informa de como funciona.
Hay que ser paciente en la interpretacion de lo que leemos que solo nos quedamos con lo malo
But the big new addition is 4K in the RS55 and RS65 (and the X90R and X70R as well). Working with the NHK Science & Technology Research Laboratories, NHK Engineering Service Inc., JVC has developed a system they call e-Shift. With this technology, 2D HD content (but not 3D) is upconverted and scaled to 4K (3840 x 2160) or over 8 megapixels. The added pixels are displaced in time from the original pixels and displayed by using a diffraction lens to shift them by one-half pixel. While this isn't a true 4K image (the imaging chips are still 1920 x 1080 and the projector will not accept a 4K input source, should one ever become available to the consumer apart from still photos) JVC argues that the result is nevertheless a significant image improvement