In the daily purchase of TV, consumers pay more attention to the screen size, soft and hard screen or smart, and pay little attention to the brightness of the TV screen. Some even mistakenly think that the brightness is brighter and better. In addition, the TV manual is usually rarely marked, so that many people do not know much about it. However, the brightness of the TV is not as high as possible. If it is too bright, it will easily cause visual fatigue and hurt the eyes.
At present, there are two ways to increase the brightness of the TV: one is to increase the light transmittance of the LCD panel; the other is to increase the brightness of the background light, or increase the number of lamps. Increasing the light transmission rate of the LCD panel is also called "brightening technology", and the surface of the display screen is like a glass to enhance the reflection of light and improve the color contrast and saturation of the screen.
However, brighter products are not necessarily better products, because the TV screen is too bright and often feels uncomfortable and even causes visual fatigue. At the same time, the contrast between pure black and pure white is reduced, which affects the performance of color gradation and gray scale. The use of the "brightening technology" display makes it easy for the eyes to be "stinged" by the light, or causing eye fatigue, resulting in health problems such as decreased vision and headache.
Generally, the TV of better quality has uniform brightness and no obvious dark areas. When consumers buy TV, they can ask the promoters to adjust the screen to a single color, because it is easy to see if the brightness is even. If the viewing distance of the living room is relatively large, you can choose a model with a slightly higher brightness; if the living room can only display a small screen TV, the brightness should not be too high.
Reporter Ma Jun finishing
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