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2. Display size - Wikipedia

   en.wikipedia.org/wiki/Display_size

   The size of a screen is usually described by the length of its diagonal, which is the distance between opposite corners, typically measured in inches. It is also sometimes called the physical image size to distinguish it from the "logical image size," which describes a screen's display resolution and is measured in pixels. [1] [2]

3. List of computer display standards - Wikipedia

   en.wikipedia.org/wiki/List_of_computer_display...

   A common size for LCDs manufactured for small consumer electronics, basic mobile phones and feature phones, typically in a 1.7" to 1.9" diagonal size. This LCD is often used in portrait (128×160) orientation. The unusual 5:4 aspect ratio makes the display slightly different from QQVGA dimensions. 160×128 (20k) 160 128 20,480 5:4 UNNAMED UNNAMED

4. Comparison of high-definition smartphone displays - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_high...

   Resolution (pixels) Display size Pixel density BlackBerry: Priv [109] October 2015: Android 6.0.1 AMOLED: 2560 × 1440 5.4 in (140 mm) 540 Google: Pixel XL: October 2016: Android 7.1 AMOLED: 2560 × 1440 5.5 in (140 mm) 534 Google: Pixel 2 XL: October 2017: Android 8.0 P-OLED: 2880 × 1440 6 in (150 mm) 538 Google: Pixel 3 XL: October 2018 ...

5. List of common display resolutions - Wikipedia

   en.wikipedia.org/wiki/List_of_common_display...

   The resolution of 960H depends on whether the equipment is PAL or NTSC based: 960H represents 960 x 576 (PAL) or 960 x 480 (NTSC) pixels. [29] 960H represents an increase in pixels of some 30% over standard D1 resolution, which is 720 x 576 pixels (PAL), or 720 x 480 pixels (NTSC). The increased resolution over D1 comes as a result of a longer ...

6. Pixel density - Wikipedia

   en.wikipedia.org/wiki/Pixel_density

   The apparent PPI of a monitor depends upon the screen resolution (that is, the number of pixels) and the size of the screen in use; a monitor in 800×600 mode has a lower PPI than does the same monitor in a 1024×768 or 1280×960 mode. The dot pitch of a computer display determines the absolute limit of possible pixel density.

7. Retina display - Wikipedia

   en.wikipedia.org/wiki/Retina_display

   Screen size Resolution Aspect Ratio Pixel density Pixel size (μm) Angular pixel density (px/°; at typ. distance) typ. viewing distance Total pixels ppi px/cm Apple Watch 38mm Retina display 1.34 in (34 mm) 272×340 4:5 326 128 77.9 56.9 10 in (25 cm) 92,480 Apple Watch 42mm (Series 0, 1, 2 and 3) 1.53 in (39 mm) 312×390 121,680

8. Display resolution standards - Wikipedia

   en.wikipedia.org/wiki/Display_resolution_standards

   The resolution 3840 × 2160, sometimes referred to as 4K UHD or 4K × 2K, has a 16:9 aspect ratio and 8,294,400 pixels. It is double the size of Full HD (1920 × 1080) in both dimensions for a total of four times as many pixels, and triple the size of HD (1280 × 720) in both dimensions for a total of nine times as many pixels. It is the lowest ...

9. Optimum HDTV viewing distance - Wikipedia

   en.wikipedia.org/wiki/Optimum_HDTV_viewing_distance

   Find the optimal distance for a given screen. Example: for a 4K UHD screen 140 cm high (112 inches diagonal), the optimal distance is 140 × 1.6 = 224 cm. Find the right screen size. Example: for a 1080 HDTV used at a distance of 250 cm, you need to find a screen whose height is close to ⁠ 250 / 3.2 ⁠ = 78 cm (63 inches diagonally).