thanks @just4kix...extending it further, Blu-ray sourced videos (it could be BRRips, etc) are 16:9 right ? they should occupy whole screen ? My observation is that on my FullHD BenQ monitor, i was watching BRRip but still it was not occupying full screen. I was watching in VLC player so I right clicked and made the aspect ration 16:9 then it was showing in almost full screen. A very small black bars on top and bottom, but very small compared to the ones before I changed settings thus. Thats why I asked if in TV there is some setting to change aspect ration or/and cropping...
Sanket
In fact, not. Movies are made usually in 2.35:1 widescreen format and leave black bars on top and bottom on 16:9 widescreen (1.78:1) TVs.
What is the native aspect ratio of your BenQ monitor. I suspect it is 16:9. In that case, VLC in 'original aspect ratio' mode would show exactly as the movie is, i.e. 2.35:1 or 1.85:1 or 1.78:1, etc. Changing the AR in VLC to 16:9, may change the movie AR to something different such as crop and fill.
In the TV, the various zoom modes, do crop and fill. Here is a table:
Original source AR = 4:3
TV in 16:9 mode: Picture will be stretched to fill resulting in people/objects looking fatter
TV in JUST mode: TV stretches the left and right sides to fill but will try to maintain the original AR at the center
TV in 4:3 mode: Picture will be shown in original AR and black bars on left and right (anti-IR features can make the black bars as white or grey)
TV in 14:9 mode: Same as 4:3 but picture is zoomed and cropped. Left/right bars will be smaller
TV in various Zoom modes (1/2/3): Depending upon the source the picture is zoomed and cropped. In one of the modes, original AR will be seen.
Original source AR = 16:9 including all movie cinema formats which is pre-packed with letterbox bars
TV in 16:9 mode: Picture will be shown with original AR
TV in JUST mode: Picture will be shown with original AR
TV in 4:3 mode: Picture will be compressed. Objects/people will be lean and tall with black bars on left and right (anti-IR features can make the black bars as white or grey)
TV in 14:9 mode: Same as 4:3 but picture is zoomed and cropped. Left/right bars will be smaller
TV in various Zoom modes (1/2/3): Depending upon the source the picture is zoomed and cropped. In one of the modes, original AR will be seen.