At present, many manufacturers have stolen a concept when promoting their products. It is clearly an LED-backlit display that is simply referred to as an LED display. In fact, LED displays are essentially different from current LED-backlit displays. Of course, what is easy for readers to confuse is the highly advanced
OLED . So what are the differences and connections between LEDs, LED backlights, and OLEDs? The following will introduce you to the basic concepts of these three technologies.
What is an LED display?
Large public display devices such as square large screens are LED displays
The LED display refers to a display in which LEDs (light-emitting diodes) are directly used as pixel light-emitting elements, and the light-emitting diodes constituting the array directly emit light of three colors of red, green and blue, thereby forming a color picture. However, since the diameter of the light-emitting diode itself is large, the distance between the pixels of the same color is also large (that is, the dot pitch as we often say), so the LED display is generally only suitable for large-screen display.
Application of LED display in the opening ceremony of Beijing Olympic Games
LED display integrates microelectronic technology, computer technology and information processing. It has become the most advantageous public display media because of its bright color, wide dynamic range, high brightness, long life and stable and reliable operation. At present, LED display has been Widely used in large squares, commercials, sports venues, information dissemination, news release, securities trading, etc., can meet the needs of different environments.
What is an LED backlit display?
LED-backlit displays are simply backlights for liquid crystal displays that are over-extended to LEDs (light-emitting diodes) by conventional CCFL cold-light tubes (like fluorescent lamps). Let's review the basic principles of liquid crystal displays.
Basic structure of the liquid crystal panel
The imaging principle of liquid crystal can be simply understood as that the external voltage is applied to deflect the liquid crystal molecules to block the transparency of the light emitted by the backlight, and the light is projected into the color filters of different colors to form an image.
White LED backlight
The transition of the backlight module from CCFL to LED can bring a lot of benefits, which can make the brightness of the display screen more uniform, the power consumption of the product is lower, and the shape can be thinner and lighter. However, W-LED (white LED) backlights are commonly used in the market. In fact, such backlights only replace the components that emit light, and the display effect is very weak or not improved. The RGB-LED (three-color LED), which has an obvious improvement in the display performance of the liquid crystal product, is applied to a high-priced LCD TV because of its high production cost.
At present, the LED display referred to by the merchant refers to a display product using a white LED backlight, and the difference from the ordinary liquid crystal display is the change of the backlight.
UFO High Bay Lights Led Driver
Constant Current LED driver, UL Dimmable Transformer, With global manufacturing standards and various certifications including CE, UL and FCC, our lighting products are sold in domestic market and are exported to various international markets including US, UK, France, Germany, Australia, Africa, Korea etc. We offer a wide range of Led Lighting Solutions which includes LED Linear Lighting or System, , LED Lams, LED High bay lights etc. Maximize beauty of your workplace with our beautiful Warehouse Lighting, Warehouse Lights Driver, Workshop Lighting, Supermarket Lighting and Factory lighting solutions.
Application: Specifically for high bay light, High Power Led Driver above 100W,normal for outdoor for waterproof, AC100-277V, 0-10V/PWM/RX dimming,short circuit protection,class 2 satety output design, passed the UL/FCC/TUV/RCM/CB/CE Certified. Europe and North America market.
Parameter:
Input voltage: 100-277vac
output voltage: 25-143vdc
current: 100mA-8000mA.
Power:108-240W
Power factor: >0.9
IP degree: IP65
Dimming:0-10V / PWM / RX / DALI.
>=50000hours, 5 years warranty.
certificate: UL CE FCC TUV SAA ect.
FAQ:
Question 1:Are you a factory or a trading company?
Answer: We are a factory.
Question 2: Payment term?
Answer: 30% TT deposit + 70% TT before shipment,50% TT deposit + 50% LC balance, Flexible payment
can be negotiated.
Question 3: What's the main business of Fahold?
Answer: Fahold focused on LED controllers and dimmers from 2010. We have 28 engineers who dedicated themselves to researching and developing LED controlling and dimming system.
Question 4: What Fahold will do if we have problems after receiving your products?
Answer: Our products have been strictly inspected before shipping. Once you receive the products you are not satisfied, please feel free to contact us in time, we will do our best to solve any of your problems with our good after-sale service.
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ShenZhen Fahold Electronic Limited , https://www.fahold.com