Is led screen and LCD screen called LCD screen Is there any difference between "LED screen" and "led backlit LCD screen"?
Author:Zhao Wenying Time:2021-06-08 15:46 Browse(129)
LED screen and LCD screen are called LCD screen. LED is a liquid crystal screen, using LED backlight, LCD is also a liquid crystal screen, using high-performance fluorescent tubes.
Both LED screen and LCD screen are called liquid crystal screen.

Is led screen and LCD screen called LCD screen Is there any difference between

LED is liquid crystal screen.
LED backlight is used, and LCD is also liquid crystal screen. High performance fluorescent tubes are used.
LED is liquid crystal screenThere are differences.
in the following aspects:1、 Energy saving:1. LED is more energy-saving, so LED is advocated by the state.
LED is more energy-saving2. The power consumption ratio of LCD to LED is about 10:1.
the power consumption ratio of LCD to LED is about 10:12、 Different display technologies:1. ED is a display screen composed of light-emitting diodes2. LCD is a display screen composed of liquid crystal3、 Different backlight life:1. The life of LED backlight can be very long.
it is about 6-10 years.
the life of LED backlight can be very long2. LCD will age after 3 yearsreference material:Baidu Encyclopedia - ledBaidu Encyclopedia LCD.
LED is a liquid crystal screen.
it uses LED backlight, LCD is also a liquid crystal screen, and it uses high-performance fluorescent tubes.
because LED is more energy-saving.
therefore, the country advocates led and suppresses LCD as backlight.
light guide plate is used in the whole panel of light guide; The LCD uses a diffusion plate to guide light evenly to the whole panel.
the LCD uses a diffusion plate to guide light evenly to the whole panelThe life of LED backlight can be very long.
it's about 6-10 years.
LCD will be aged after 3 years.
it's necessary to improve the display brightness to make up for the attenuation.
but the lamp is a replaceable part.
the LED backlight has a long lifeThe core material technology of liquid crystal is monopolized by Japanese and South Korean enterprises.
material R & D costs a lot of money, calculated in billions of US dollars.
for example, PVA (liquid crystal layer) is only one enterprise in Japan in the world.
it is a global patent.
the so-called wide view film (core material) is a global patent of Fujifilm.
it is a global patent of FujifilmSome manufacturers also use other technologies to make up for it, but it's not as good as WV's membrane.
some manufacturers use other technologies to make up for itAt present, the core material components of domestic LCD screens are all from South Korea, Japan and Taiwan (joint venture of Japan and South Korea).
many films are also made in China, but they are not optical grade materials. The production of materials needs to be carried out in 10000 grade dust-free rooms, and only injection pharmaceutical factories have them in China.
screens are set up in totally closed production lines.
at present, large domestic factories include Hefei, Beijing's BOE (that is, the one that raised 20 billion yuan through additional issuance) all comes from South Korea and Japan.
Hefei is the generation 6.5 line (the production line of South Korea and Japan is already at the end of depreciation).
Beijing's generation 8.5 line, while Japan's latest generation 10.5 line at present.
Hefei is the generation 6.5 line--------Long winded.
in a word, the domestic core technology is not good, at least 10-15 years away from Japan and South Korea, including other high-tech industries.
just like most Chinese proud domestic cars.
engines are mostly made by Shenyang Mitsubishi.
in this paper, the development trend of domestic core technology is analyzedAt present, Japan's semiconductor chip industry has been studying 25 nanometer technology.
it costs about 600 million US dollars, and it is done by enterprise groups and business houses.
no domestic enterprise will do so.
moreover, there are many technical problems that can't be seen from afar. China's development in the form of a country is unparalleled?!That's all! More
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