I’m approaching to develop a Tizen web app to display digital images in 4k resolution; the app should be deployed on a Samsung Smart TV that supports UHD resolution.

I developed a prototype using the CAPH extension library but running the app I realize that the image is displayed in full hd resolution (1920×1080), even if the smart tv is an UHD device.

What am I doing wrong? Are there different ways to implement this req? is there an available example?