About QVGA and HVGA Android OS

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QVGA - . "Quarter Video Graphics Array " means quarter VGA resolution (320 x 240) video sequences motion
HVGA - " half-size Video Graphics Array " refers to a half - size Video Graphics Array ( 640 by 240 pixels, 2.67:1 aspect ratio) .
I find a more readable screen and a QVGA screen unacceptable a good compromise between readability and speed could be 320x480 HVGA Palm resolution .
resolution graphic display
QVGA (320 × 240)
the district
Video Graphics Array ( also known as quarter VGA name , QVGA, or QVGA) is a popular term for a computer screen with 320 × 240 resolution display . QVGA screens are often used in mobile phones , personal digital assistants (PDAs) and some portable game consoles . Often screens are in a "portrait" orientation ( , ie larger than wide , as opposed to "landscape" ) and are considered 240 × 320.
the name comes from having a quarter of the 640 × 480 maximum resolution of the original VGA display technology IBM , which has become a de facto standard in the industry in the late 1980s. QVGA is not a standard mode offered by the VGA BIOS , even though VGA and compatible support a QVGA size chipsets X. the term refers only to the resolution of the screen and thus the abbreviated term QVGA or Quarter VGA is more appropriate to use.
QVGA resolution is also used in digital video recording equipment in low resolution mode requiring less data storage capacity than higher resolutions , typically in digital camera with video recording capability and some mobile phones. Each image is an image of 320 × 240 pixels. QVGA video is typically recorded at 15 or 30 frames per second. 's QVGA describes the size of an image in pixels , commonly called the resolution , many video file formats do not support this resolution
. So QVGA with a resolution lower than VGA, at higher resolutions , the prefix "Q" commonly means quad ( Ruple ) or four times the display resolution more high (eg , QXGA is 4 times higher than XGA resolution ) . to distinguish quarter from quad, lowercase " q " is sometimes used for "quarter" and uppercase "Q" for " quad" , by analogy with SI prefixes as M / M and P / P, but this is not a consistent use
Some examples of devices that use include QVGA display , Samsung i5500 , LG Optimus L3 E400 - . , Galaxy Fit, Y and Pocket HTC Wildfire , Sony Ericsson Xperia X10 Mini and Mini Pro and the bottom screen Nintendo 3DS.
HVGA (480 × 320 )
HVGA (Half -size VGA) screens have 480 × 320 pixels ( 3:2 aspect ratio ) , 480 × 360 pixels (4:3) , 480 × 272 (~ 16:9) or 640 × 240 pixels ( aspect ratio 8:03 ) . The one is used by a variety of PDA devices , starting with the Sony CLIÉ PEG- NR70 in 2002 , and autonomous PDAs by Palm . latter has been used by a wide variety of pocket PC devices . VGA resolution is 640 × 480. examples of the devices that use HVGA include the Apple 2G , 3G, BlackBerry Bold 9000 , HTC Dream , Hero , Wildfire S , LG GW620 Eve, MyTouch 3G Slide , Nokia 6260 Slide , Palm iPhone Pre, Samsung M900 Moment, Sony Ericsson Xperia X8 , mini , mini pro, . direct and active
Texas Instruments DLP pico projector which supports HVGA resolution .
HVGA was the only resolution supported in early versions of Google Android to version 1.5. Other higher and lower resolutions are now available from version 1.6 , as the popular WVGA resolution on the Motorola Droid or the QVGA resolution on the HTC Tattoo.
Three -dimensional computer graphics common on television in the 1980s were mainly made ​​to this resolution , causing objects have jagged edges on the top and bottom when edges are not anti -aliased .
hehe thank you for reading , you can also read About Graphic Processing Unit ( GPU) Android

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Ditulis oleh: autocarsmotors - Friday 27 September 2013