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This recommendation is cited by television manufacturers, [16] retailers, [17] respected publications [18] [19] and websites, [20] though the popular electronics review website CNET suggests that high-resolution content can be watched at a closer distance – 1.5 times the display screen's diagonal measurement (corresponding to 32 degree ...
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]
The recommendation section should make it immediately clear that the relationship bewtween screen size, viewing angle, & distance only applies to 16:9 screens. While these are now ubiquitous, there are HD monitors that are 4:3, and 4:3 content will be viewed on 16:9 screens.
For example, holding a phone 11 in (28 cm) away, the value of 58 PPD means that a tall skinny triangle emanating from the eye with a height equal to the viewing distance and a top angle of one degree will have a base on the device's screen that covers 58 pixels. Many authors have challenged Apple's claim.
The viewing cone refers to the effective viewing directions of an LCD display, as seen from the eye. This collection of angles resembles a cone. The concept has been introduced as an international standard ISO 13406-2, which defines it as the range of viewing directions that can safely be used for the intended task without "reduced visual performance".
And in the U.S., the TV is now the No. 1 device for YouTube viewing — topping desktop and mobile — underscoring the platform’s growing presence in entertainment, according to Mohan.
As the display size increases so does the ideal viewing distance. Bernard J. Lechner, while working for RCA, studied the best viewing distances for various conditions and derived the so-called Lechner distance. As a rule of thumb, the viewing distance should be roughly two to three times the screen size for standard definition (SD) displays.
In an instant, these commands improve the readability of the content you're viewing. • Zoom in - Press Ctrl (CMD on a Mac) + the plus key (+) on your keyboard. • Zoom out - Press Ctrl (CMD on a Mac) + the minus key (-) on your keyboard. Zoomed too far? Press Ctrl (CMD on a Mac) + 0 to go back to the default size.