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| Contact Us |
Shenzhen lishengxin energy co. LTD
Link man: Mr. Zhang
Mobile phone: 15815515926
Q Q: 278901110
Link man: miss tao
Mobile phone: 15118099928
Q Q: 1063926148
Telephone: 0755-29726997
The true: 0755-29726857
Address: Address: Nanhai Guangfa Industrial Park, Guangtian Road, Songgang, Bao'an District, Shenzhen
Web site: http://szlsxny.com/
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| What is an LED digital screen |
| Date:2017-07-31 |
Count:1350 |
LED digital color screen is the display of two or more colors in red, yellow, blue and green. Among them, red and green leds are placed together as a pixel - made display screen called a dual color screen or a color screen. The red, yellow, green and blue LED tubes are placed together as a pixel display screen called full color screen. The products are widely used in induction cooker, electric pressure cooker, electric water heater, electric fan, humidifier, air conditioning, DVB set-top box, etc., as display panel. In some of the semiconductor PN junction, the minority carrier injection with majority carrier compound will release excess energy in the form of light, so as to directly convert the electric energy to light energy. PN junction and reverse voltage, a few carriers are difficult to inject, so it does not shine. This type of secondary tube, called the light-emitting diode (LED), is made using the electroluminescent principle of injection.
LED's luminous color and luminous efficiency are related to the production of LED materials and processes, which are widely used in red, green and blue. Because of the low voltage LED work (only 1.5 3 v), active luminous and have certain brightness, brightness in voltage (or current) regulation, and in itself, and impact resistance, resistance to vibration, long life (100000 hours), so in the large display devices, there is no other way of display and LED display.
Put red and green leds together as a pixel - made display screen called a dual color screen or color screen. The red, yellow, green and blue LED tubes are placed together as a pixel display screen called full color screen.
Whether made of LED monochrome, double color or 3 color screen, need to display image pixels of each LED luminous intensity must be adjusted, the adjustment of fine degree is the grey scale display. The higher the gray scale, the more delicate the image is displayed, the more colorful the color, and the more complex the display control system. In general, the color transition is very soft, and the color transition boundary is very obvious. Therefore, the color LED screen is required to make a 256-level grayscale.
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