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Common screen dimensions are listed in the table below (the most common diagonal dimensions in inches as of 2020 are bolded). If the display is not listed, then the following equations can be used. Note that D is the diagonal (in centimeters or inches), W is the width (in pixels), and H is the height (in pixels).
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).
Size Resolution Light source Contrast HDMI Notes References KDF-37H1000 37" 1280x720 Projection 2 [22] KDF-50E3000 50" 1080p: Projection 2 [23] KDS-50A2020 50" 1080p: Projection KDS-55A2020 55" 1080p: Projection KDS-60A2020 60" 1080p: Projection 20S3000 20" 1366x768 1 26S3000 26" 1366x768 2 32S3000 32" 1366x768 2 40S3000 40" 1366x768 2 46S3000 ...
All the 50-inch TVs I cover below feature 4K resolution, and I chose models that range from roughly $300 to $1600, including a mid-range set for about $600. U6HF Series 4K TV The 50-inch Hisense ...
Screen sizes have increased since the introduction of plasma displays. The largest plasma video display in the world at the 2008 Consumer Electronics Show in Las Vegas, Nevada, was a 150-inch (380 cm) unit manufactured by Matsushita Electric Industrial (Panasonic) standing 6 ft (180 cm) tall by 11 ft (340 cm) wide. [36] [37]
The diagonal screen size of a CRT television is limited to about 100 cm (40 in) because of size requirements of the cathode-ray tube, which fires three beams of electrons onto the screen to create a viewable image. A large-screen TV requires a longer tube, making a large-screen CRT TV of about 130 to 200 cm (50 to 80 in) unrealistic.