How to judge the horizontal and vertical screen from the resolution is actually very simple. For example, 720* 1280, the front number 720 is higher than the back number 1280, which is a vertical screen, while 1280*720 is a horizontal screen.
2. Judging the display effect from the resolution.
Judging the display effect of a 7-inch LCD screen from the resolution is easy to understand, that is, the higher the resolution, the better the display effect, that is, the more pixels. The richer the colors displayed, the common resolutions of 7-inch LCD screens are 720* 1280, 1024*600, etc.
3. Judging the aspect ratio of the screen from the resolution.
Anyone who knows the 7-inch LCD industry must have heard of the aspect ratio. For example, a 7-inch LCD with a resolution of 1024*600 has an aspect ratio of 16:9. How is this worked out? You can also search the formula on the Internet, and the summary is 4: 3 =1.3333 ...; 16: 10= 1.6666……; 16:9= 1.77777 ... can be directly applied, that is, the result of dividing by the discrimination ratio is the proportion of 7-inch LCD screens.
At present, there are four common LCD screen ratios (length: width):
5:4 = 1.25
4:3 = 1.33
16: 10 = 1.60
16:9 = 1.77
The more the above screen accounts for, the more "flat" the screen looks and the more "positive" the front looks. Screen size and aspect ratio are absolute concepts.
The following are some common interpretations, which are incomplete. For example, resolutions such as 320×240 and 640×480 are mostly used in displays or small-screen handheld devices.
800×640 (aspect ratio 1.25) and 800×600 (aspect ratio 1.33)
1024×768 (aspect ratio 1.33),
1280×960 (aspect ratio 1.33), 1280× 1024 (aspect ratio 1.25), 1280×800 (aspect ratio)
1400× 1050 (aspect ratio 1.33), 1440×900 (aspect ratio 1.60),1440× 8/kloc-.
1600× 1200 (aspect ratio 1.33),
1680× 1050 (aspect ratio 1.60), 1680×945 (aspect ratio 1.77).
1920× 1200 (aspect ratio 1.60), 1920× 1080 (aspect ratio 1.77).
2048× 1536 (aspect ratio 1.33),
Combined with the introduction of LCD scale, what kind of resolution is suitable for display? It only needs that the aspect ratio of the resolution is equal to that of the computer display screen, and all screens at this resolution can be displayed in full screen. If the aspect ratio does not correspond, if smoothing (stretching) is not carried out, black edges or incomplete display will definitely appear.
Some LCD screens of the same size will have multiple resolutions to choose from, such as 16:9, 1280×720, 1440×8 10, 1680×945 and/kloc-0 at the bottom of the screen.