40" Full HD TV
TVs · Full HD
Resolution
1920×1080
Diagonal
40"
Pixel density
55ppi
| Resolution | 1920 × 1080 |
|---|---|
| Resolution class | Full HD |
| Diagonal | 40" |
| Pixel density | 55 ppi |
| Aspect ratio | 16:9 |
| Total pixels | 2,073,600 · 2.1 MP |
| Physical size | 885.5 × 498.1 mm |
| Screen area | 683.7 in² |
| Pixel pitch | 461.2 µm |
| Pixels vanish at | 158.6 cm |
| Orientation | Landscape |
How to read this
- Pixel density (ppi) is how many pixels fit in one inch. Resolution alone cannot tell you — you have to divide by the diagonal.
- The same 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV. That is more than double, but a TV is watched from far away, so it does not matter.
- The distance at which pixels vanish comes from one arcminute, the limit of human sight. Once a pixel looks smaller than that, no eye can find the grid.
- Aspect ratio is width and height reduced to the simplest whole numbers. Modern phones are 19.5:9 or 20:9, so 16:9 video leaves black bars on the sides.
Frequently asked questions
QWhat is the 40" Full HD TV screen resolution?
1920×1080 pixels — 2,073,600 in total, about 2.1 megapixels, which puts it in the Full HD class.
QWhat is the pixel density of the 40" Full HD TV?
55 ppi. That is the diagonal in pixels of a 1920×1080 grid divided by the 40" diagonal of the panel, and it makes each pixel about 461.2 micrometres across.
QHow big is the 40" Full HD TV screen in millimetres?
885.5 mm wide and 498.1 mm tall, worked out from the 40" diagonal and the 16:9 aspect ratio. The visible area is roughly 683.7 square inches.
QHow far away do pixels stop being visible on the 40" Full HD TV?
About 158.6 cm. That is where a pixel subtends less than one arcminute, the limit of human sight — closer than that and the grid starts to show.
QWhat aspect ratio does the 40" Full HD TV use?
16:9, with the long edge 1.78× the short one. It is wider than it is tall, which suits video and side-by-side documents.
Screens of a similar size
The same diagonal at a different resolution means a different density. 4K is 163 ppi on a 27" monitor and 68 ppi on a 65" TV.
| Device | Resolution | Diagonal | Density |
|---|---|---|---|
| 43" 4K TV | 3840×2160 | 43" | 102 ppi |
| 32" HD TV | 1366×768 | 32" | 49 ppi |
| 32-inch Full HD TV | 1920×1080 | 32" | 69 ppi |
| 48" 4K OLED TV | 3840×2160 | 48" | 92 ppi |
| 50" 4K TV | 3840×2160 | 50" | 88 ppi |
| 55" 4K TV | 3840×2160 | 55" | 80 ppi |
| 55" 8K TV | 7680×4320 | 55" | 160 ppi |
| 58형 4K TV | 3840×2160 | 58" | 76 ppi |