Introduction: The advent of the 21st century has led to the emergence of many new products. Products such as led lights are products that many friends are using at the present stage. They have the advantage of low power consumption and high brightness. What does LED backlight mean? I don't know much about it. Xiao Bian specially made information on the Internet. Let's talk about the meaning of led backlight in detail, as well as the LED backlight and ccfl backlight. I hope I can help you.
Led backlight
Led backlight
What is the meaning of led backlight? LED backlight refers to the use of LED as the backlight of liquid crystal display. Compared with traditional cold cathode tube backlight, LED has low power consumption, low heat generation, high brightness and long life. . What is the meaning of LED backlight, the brightness of LED backlight is high, the brightness of long-term use will not drop and the body of LED backlight is thinner, the appearance is beautiful, the color is softer, and the color of hard-screen panel can make the eyes more comfortable. All LED backlights are available, saving energy and environmental radiation is low.
What is the meaning of led backlight? The LED light source is composed of many grid-like semiconductors. Each LED has an LED semiconductor, so that the LED backlight successfully realizes the planarization of the light source. The planarized light source not only has excellent brightness uniformity, but also does not require complicated optical path design, so that the thickness of the LCD can be made thinner, and at the same time, it has higher reliability and stability.
Led backlight and ccfl backlight that is good
Led backlight and ccfl backlight that is good, between CCFL and LED, LED is DC, low voltage; and CCFL is high voltage (600 volts), of course, small area CCFL also has low voltage, but generally also 300-400 volts the above. The light source of the LED can be freely distributed depending on the size and application. CCFL is relatively fixed, it needs more diffusing material to achieve the dispersion of light, in order to achieve the uniformity of brightness.
Led backlight
From the perspective of extension, (a) LED has a wider color gamut, and the color saturation can be more than 105%. On the contrary, CCFL is relatively narrow, and most of them can only achieve about 70%; (b) LED The speed is very fast, which can help the LCD to eliminate the tailing phenomenon; (c) The big drawback of the LCD is that the "black screen" is not black. If the LED dynamics are used for control, the problem can be solved well; (d) LED The current can be adjusted; (e) LED is a green product, does not contain mercury, is a solid light source, good shock resistance, low voltage safety. Therefore, LEDs are likely to be widely used in the future.
Regarding the problem of life, although the life of LED is very long, if the user overheats, it will lead to a decline in service life. Now we adopt a dynamic method to control, so that the life of LED can be more than 100,000 hours, according to the drive. The difference can meet different needs. CCFLs typically have a lifespan of between 20,000 and 50,000 hours.
talking books for children (children sound books):
Ningbo AST Industry Co.,Ltd has 17 Years Experiences to produce the Sound module for children book,sound pad, Children sound book,Sound learning book and so on.we can assure you of competive price,high quality,prompt delivery and technology supporting.
1. children sound books Application:
The Children Talking book usually are used to learn by Children.
2. children sound books Classification:
There are 6buttons ,10buttons,20buttons etc.sound pads for the Books,Each button can play each customized audio.
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3.Sound Quality:Clearly and Loudly ( 16Khz Sampling Rate)
4.Push buttons--press the button to play the message/audio/music
5.Long Lifespan
6.Speaker:21mm,27mm,29mm,36mm,40mm etc. Plastic or Metal
7.Battery:AA, AAA, AG13, AG10 and so on environmental
9.The contents of Book and Audios:Customized
10.Certification:CE ,Rohs
11.Export to:
Children Voice Book, Children Sound Books, Talking Books for Children
AST Industry Co.,LTD , https://www.astsoundchip.com