Buzz
When opting for a laptop, phone, you'll frequently encounter terms like HD, Full HD, and 2K related to the sharpness of images.
1. Screen Resolution Defined
Every screen is composed of countless pixels arranged in rows and columns. Therefore, resolution is the number of horizontal rows and vertical columns on that screen.
Example: For Full HD resolution 1080 x 1920 pixels commonly found on smartphones and tablets, it means the screen has 1920 horizontal rows and 1080 vertical columns of pixels, totaling 2.07 Megapixels (1 Megapixel = 1 million pixels).
2. Classifying Screen Resolution Standards
Comparing screens of the same size, the higher the pixel count or, in other words, the higher the resolution, the sharper the display.
In the present day, screen technology on mobile devices like tablets and smartphones has advanced to extremely high resolutions, reaching up to 2K+ and even 4K standards. Corresponding to each numerical value, a specific name is assigned based on a standard. Here are some common resolutions we often encounter when purchasing phones, tablets, and laptops.
+ QQVGA: 120 x 160 pixels.
+ QVGA: 320 x 240 pixels.
+ VGA: 640 x 480 pixels with a 4:3 aspect ratio.
+ WVGA: With a resolution around 768 x 480 pixels, 720 x 480 pixels (aspect ratio 3:2), 800 x 480 pixels (aspect ratio 5:3).
+ FWVGA: 854 x 480 pixels (aspect ratio around 16:9).
+ SVGA: 800 x 600 pixels with a screen ratio of 4:3 or 832 x 624 pixels.
+ DVGA: 960 x 640 pixels with a 3:2 aspect ratio.
+ qHD: 960 x 540 pixels.
+ XGA: 1024 x 768 pixels with a 4:3 aspect ratio.
+ HD: 1280 x 720 pixels or 1366 x 768 pixels.
+ HD+: Comes with a resolution around 1440 x 720 pixels and variations like 1480 x 720 pixels, 1520 x 720 pixels, ...
+ WXGA and variants from HD resolution: 1366 x 768 pixels with a frame ratio close to 16:9 and other types: 1360 x 768 pixels, 1280x800 pixels, 1280x768 pixels, ...
+ Full HD: 1920 x 1080 pixels.
+ Full HD+ : Comes with a resolution around 2160 x 1080 pixels, 2280 x 1080 pixels, 2340 x 1080 pixels, ...
+ QHD (2K): 2560 x 1440 pixels.
+ QHD+ (2K+): With a resolution around 3200 x 1800 pixels, 2960 x 1440 pixels, 3120 x 1440 pixels, ...
+ UHD (4K): 3840 x 2160 pixels or 4096 x 2160 pixels.
3. Applications of resolution on some products:
Budget phones with qHD display: Samsung Galaxy J2 Prime, Galaxy J2 Core, Galaxy J2 Pro (2018),...
Budget phones with HD display: Nokia 2.1, Samsung Galaxy J4,...
Budget phones with HD+ display: Nokia 3.1, Galaxy J4+, Vivo Y71, OPPO A3s or Huawei Nova 2i,...
Mid-range phones featuring Full HD+ display: Xiaomi Mi A2 Lite, OPPO F7, Galaxy A6+ (2018),...
High-end phones with QHD+ display: Galaxy S9 Plus, Galaxy Note 9, Mate 20 Pro,...
Laptop equipped with UHD (4K) display: Dell XPS 13 9300
