Explanation and difference of VGA, QVGA, WVGA, HVGA terms in the display industry

                                                Explanation and difference of VGA, QVGA, WVGA, HVGA terms in the display industry     

     After VGA, QVGA, WVGA, and HVGA resolution products were gradually born. These resolutions can be seen everywhere in the mobile phone parameters. The following is the explanation and difference of VGA, QVGA, WVGA, and HVGA.
 VGA
      Namely "Video Graphics Array". It is a video transmission standard launched by IBM together with PS/2 machine in 1987. It has the advantages of high resolution, fast display speed and rich colors, and has been widely used in the field of color displays. VGA first refers to the monitor 640X480. The full English name of VGA is Video Graphic Array, also called display graphics array. S900C+ is a typical Dopod mobile phone
QVGA
     That is "Quarter VGA". A quarter of the size of VGA in China, that is, the output resolution on the liquid crystal screen (LCD) is 240×320 pixels. QVGA supports screen rotation, and corresponding programs can be developed to display screen positions rotated by 90°, 180°, and 270°. Published by HandEra Corporation. Mostly used for handheld/mobile devices.
WVGA
     Namely "Wide VGA". Its resolution is 800×480 pixels. It is to expand the resolution of VGA (640×480). Applied to PDAs and mobile phones, because the width of many web pages is 800, WVGA screens will be more suitable for browsing web pages, which can be said to be the general trend of the resolution of handheld devices in the future.
HVGA
    That is "Half-size VGA". It is half of VGA, the resolution is (480*320), (3:2 aspect ratio), it is used in various PDA devices, the first is Sony Clie PEG - NR70 in 2002, BlackBerry also has HVGA Yes, the iPhone is also an HVGA device. The world's first Google mobile phone, T-Mobile G1 is equipped with a 3.2-inch HVGA (320×480 pixels) resolution full-touch screen.
   The difference between mobile phone screen VGA QVGA HVGA WVGA, the general mobile phone LCD screen is made of TFT material, VGA WVGA QVGA HVGE XGA only means the screen resolution, it is a code name and material has nothing to do.
 Resolution comparison table:
Code Resolution Code Resolution
QVGA 320*240 pixels WQVGA 400*240 pixels
HVGA 320*480 pixels VGA 640*480 pixels
WVGA 800*480 pixels XGA 1024*480 pixels
QVGA is Quarter VGA. As the name suggests, it is a quarter of the size of VGA
HVGA (Half-size VGA), which is half of VGA (640*480)
WVGA is Wide VGA
WQVGA full name: Wide Quarter Video Graphics Array
VGA and XGA (Extended Graphics Array) See Baidu Encyclopedia for details
   Shenzhen Hongjia Technology Co., Ltd. specializes in R&D, production and sales of small and medium-sized LCD screens and matching touch screens. At present, QVGA has 1.77 inches, 2.0 inches, 2.2 inches, 2.3 inches, 2.4 inches, 2.6 inches, 2.8 inches, 3.2 inches; HVGA There are 2.4 inches, 3.0 inches, 3.17 inches, 3.2 inches, 3.5 inches; WVGA 3.0 inches, 3.1 inches, 3.2 inches, 3.5 inches and 3.97 inches, 4.3 inches, 5.0 inches; WQVGA has 2.8 inches, 3.0 inches, 3.2 inches ; VGA has 2.4 inches, 2.8 inches, 3.5 inches and so on.
They have nothing to do with the screen size, for example, both Nokia N95 and Nokia E71 are QVGA 320*240, N95 is 2.6 inches, N95 8GB is 2.8 inches, and E71 is 2.36 inches
  Look again, Apple iphone is HVGA 320*480 3.5 inches and G3 (HTC hero) is also HVGA 320*480 screen is 3.2 inches.
  Of course, with the same resolution, the smaller the screen, the more delicate the display!