How to judge the quality of LED LCD TV screen
Author:Hu Wanchun Time:2021-10-05 17:59 Browse(401)
The quality of LCD TV mainly depends on three aspects: one is the LCD panel, the other is the quality and arrangement of backlight tube.
The quality of LCD TV mainly depends on three aspects: one is the LCD panel, the other is the quality and arrangement of backlight tube

first, you can let the shopping guide type out the LCD menu and watch the brightness value in the menu, because the LCD TV screen will darken after watching for a long time, which will definitely affect the future viewing effect. Now there are many low-cost LCD manufacturers on the market, and the brightness value is at least 70. Generally, the brightness value of a good LCD panel is about 30, Remind consumers to buy LCD must open the menu to see the brightness value

How to judge the quality of LED LCD TV screen

Second, to see if there are white defects on the LCD screen, you can generally observe them on the screen with high brightness. Once you see the defects, it proves that this kind of LCD screen is definitely inferior. After watching the quality of the screen, it is suggested that consumers ask the shopping guide which manufacturer the backlight tubes are from. Generally, the backlight tubes on the market are imported from Philips. We can't ignore the order of the backlight tubes. Because the market is generally used in a word cylindrical arrangement, but this arrangement is not uniform brightness, light utilization is not high; Many foreign brands are arranged with U-tubes, so the brightness is uniform and the service life is longer.
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