LCD (liquid crystal screen) itself can not emit light, to be exact, it is shading. In order to display the restored image, it is necessary to use the background light source (backlight) to transmit the LCD screen to get the image.
Author:Zhang Shumei Time:2021-09-13 11:22 Browse(null)
1、 The principle is different
Author:Li Yanli Time:2021-09-12 11:23 Browse(null)
1. The difference between the structure of the direct light-emitting panel lamp and the side light-emitting panel lamp is that there is no light guide plate.
Author:Yang Kai Time:2021-09-09 10:17 Browse(null)
Compared with ordinary LCD, LED display structure is better
Author:Zhou Yanshan Time:2021-07-30 09:22 Browse(null)
LED is the second generation of LCD TV, which is a synonym for energy-saving TV. It is named to distinguish the first generation of LCD TV. LCD belongs to high-energy consumption TV. Light emitting is through ordinary lamps, which consumes a lot of power. LED is light emitting diode, which consumes less power. Now the country advocates LED TV, and LCD will stop production next year, Second is Skyworth ace Konka Changhong
Author:Mr. Lao Time:2021-07-07 10:18 Browse(null)
How to maintain a green line in the middle of LED outdoor large screen? How to deal with several green lines and a red line in outdoor P6 and LED display? Thank you
The single one should be the IC is broken
Author:Zhou di Time:2021-06-27 13:31 Browse(null)
It should be that led has more advantages than LCD. LED is the abbreviation of what we call light-emitting diode. When this kind of LED works, it consumes less power, is energy-saving and environmental friendly, and is fashionable and simple. Its working principle is to directly convert electric energy into light energy. It does not produce heat or a small amount of heat, and it also has less radiation to human body. In addition, this kind of LED TV has a long service life, It's more suitable for the current trend of people.
Author:Ji Changsheng Time:2021-06-16 08:05 Browse(null)
LED is a solid-state semiconductor device, which can directly convert electricity into light. The heart of LED is a semiconductor chip. One end of the chip is attached to a bracket, one end is the negative pole, and the other end is connected to the positive pole of the power supply, so that the whole chip is encapsulated by epoxy resin. Semiconductor wafer is composed of three parts, one is p-type semiconductor, in which the hole is dominant, the other end is n-type semiconductor, here is mainly electrons, and the middle is usually one to five cycle quantum well. When the current acts on the chip through the wire, the electrons and holes are pushed into the quantum well, where the electrons and holes/
Author:Li Fang Time:2021-06-15 17:55 Browse(null)
LED display brand ranking:
Author:Shen Tu Zhiqiang Time:2021-06-15 11:23 Browse(null)
Author:He zhuoreng Time:2021-06-10 12:28 Browse(null)
This article is suitable for electricians and technicians, including college graduates majoring in electronics. As this tutorial involves strong electricity, please pay attention to safety. catalogue
Author:Ma Chunyun Time:2021-06-10 09:32 Browse(null)
LED (light emitting diode), known as "the technology of illuminating the future", is gradually approaching our daily life, and will promote a revolutionary change in the field of display. The development speed of LED display technology has exceeded the prediction of experts. As an emerging industry, LED display is expected to reach an output value of 3 billion US dollars within 10 years. LCD and CRT will also be the same, out of the mainstream stage!
Author:Deng Bo Time:2021-06-09 15:47 Browse(null)
Features of LED display screen:
Author:Xu Xiaoye Time:2021-06-07 13:33 Browse(null)