ipad pixel density

the screen size is ignored.5.ppi:①ppi is the pixels per inch abbreviation, the pixel density unit, which represents the number of pixels per inch. The formula is expressed as ppi=√ (x^2+y^2)/z (X: length pixels; Y: width pixels; Z: Screen size)②, it's a bridge link between the world of pixels and the physical world (you can't determine how big a pixel is), the m

DisplaysApple iphone 4Apple iphone 4 SApple iphone 5Apple iphone 5 degreesApple iphone 5 sApple iphone 6Apple ipad (third generation)Apple ipad 4The air of Apple ipadApple ipad Mini (2rd generation)HTC One XGoogle's Galaxy NexusGoogle Nexus 4Google Nexus 7 (type 2013)Google Nexus 10Motorola Extreme MotoSamsung Galaxy S IIISamsung Galaxy Note IISony Xperia ageSon

-pixel-ratio)ASUS Memopad HD 7Google Nexus 7 (type 2012)Device pixels: 1.4 (-webkit-min-device-pixel-ratio)Nokia Streamer (Lumia) 520Device pixels: 1.5 (-webkit-min-device-pixel-ratio)Google Nexus SHTC DesiresHTC Desire HDHTC's incredible AgeHTC SpeedThe feeling of HTC ElectricKindle Fire HDSamsung Galaxy S IISony tablet Xperia ZSony Xperia UDevice pixels: 2.0 (-

In screen-based design, pixels are always the smallest unit. Because it is inseparable, it becomes a tangible unit for the designer to measure the screen distance. In the past, I heard people say: "A pixel is a pixel ." This sentence is intended to help flat designers who are not accustomed to Fixed Screen density understand the concept of pixels. Because of this

Basic knowledge of mobile resolution (DPI,DIP calculation) 1. Terminology and concepts Terms Description Note Screen size (on-screen dimensions) Refers to the actual physical size of the phone, such as 2.8-inch, 3.2-inch, 3.5-inch, 3.7-inch Motorola Milestone mobile phone is 3.7 inches Aspect Ratio (Wide-high ratio) Refers to the actual physical dimensions of the wide-high ratio, divided into long and nolong Milestone is 16:9 and belo

Basic mobile phone resolution knowledge (DPI, DIP computing) 1. terms and concepts Terms Description Remarks Screen size) It refers to the actual physical size of the mobile phone, such as the commonly used 2.8 inch, 3.2 inch, 3.5 inch, 3.7 inch Motorola's milestone mobile phone is 3.7 inch Aspect Ratio (width/height Ratio) Refers to the actual physical size width/height ratio, divided into long and nolong Milestone is and belongs to long Res

1. px (pixels) pixels-is a pixel, which is the actual pixel unit on the screen. Dip or dp (device independent pixels) device independent pixels, related to the device screen. Sp (scaled pixels-best for text size): similar to dp, it mainly deals with the font size. Dpi (dot per inch): screen pixel density, how many pixe

inside is 30 points, then it is 30sp.Resolution: The whole screen is how many points, such as 480*800, it is for the software to display units, in PX units of the point.The density (density) value represents the number of display points per inch, and the resolution is two concepts.APK in the resource bundle,Resources that use HDPI tags when the screen is density

Using HTML5 in developing mobile applications to meet a variety of needs Android resolution and screen of tablet device density, which is a very cumbersome process, the ultimate solution is to use CSS Media query, matching the same time resolution and screen pixel density. On the compatibility test, and finally ensure that on most Android tablets can be better di

pixel density and screen fitThis address: Http://blog.csdn.net/caroline_wendyThe variety of Android devices is often required to adapt to different screens to get the hardware screen pixel and density in a way: Displaymetrics dm = new Displaymetrics (); Getwindowmanager (). Getdefaultdisplay (). Getmetric

The concepts of PX, dip, SP, and DP are vague. I checked it online and found it clearly in theory. 1. PX (pixels): the point on the screen, which is related to the density. The density is high, and the PX size per unit area is large. 2. Dip or DP (pixels unrelated to density ). This is related to the hardware of the device. We recommend that you use this feat

Android is self-adapting to screen size and density. Android provides the following folders to store image resources in order to ensure app interface effects on different screens. Different folders correspond to different pixel density picture resourcesDRAWABLE-LDPI:120DPI around the screen (low density)Drawable-mdpi:1

Surface Pro, Lenovo ThinkPad Helix, Toshiba Kirabook, Dell XPS 12 and a number of high-end Windows 8 machines all have the same annoying place: that their high-resolution display is too clear and gorgeous, so that the user interface has often become very small. Text is therefore becoming difficult to read and difficult to carry out related touch manipulation. But that situation will soon change, with Windows 8.1 officially Retina High-definition resolution display support, allowing users to scal

screens: The following table ScreenTyep WidthPixels HeightPixels SizeRange (inches) Screen density QVGA 240 320 2.6-3.0 Low WQVGA 240 400 3.2-3.5 Low Fwqvga 240 432 3.5-3.8 Low HVGA 320 480 3.0-3.5 Medium WVGA 480 800 3.3-4.0 High FWVG