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.
Minsound offers a great range of Driver Units,providing accurate reproduction.high intelligibility and dependable performance in commercial sound,signaling and public address loudspeaker systems.
All models are suited for Minsound reflex horns,equipped with the industry standard 1-3/8"-male tread pattern.
This series driver units are compression driver unit tweeter,which is solid and durable ,long lifetime, high acoustic quality and wide coverage. Suitable for public security, tourism, teaching, transportation, environment use.
Compression Horn Driver,Compression Tweeter Drivers,Tweeter compression driver,Compression Driver,Compression Driver Unit
Taixing Minsheng Electronic Co.,Ltd. , https://www.ms-speakers.com