Welcome to Huasun Booth No. Hall 10.2 D15

isle： Intelligent Signs & LED Exhibtion Guangzhou 2015 (ISLE)

Booth No. Hall 10.2 D15

Positioning of special exhibition

Guangdong has become the important industrial conglomeration base and transaction market of advertise sign, production equipment and materials, LED illumination and display; of which, the advertise sign industry accounts for nearly 50% of market share in China. Digital and intelligence are trends of the industry. It is expected that the size of LED industry will reach 500 billion Yuan in 2015.
　　

Based on strong resource advantage of organizer of Canton Fair, and supported by large industrial size and market in Guangdong, as required by many enterprises in ads and LED industries, Canton Fair Advertising Co., Ltd. and CFTE are dedicated to build professional and characteristic intelligent ads signs and LED full industry chain integrated solution platform – one-stop comprehensive purchase transaction platform, which facilitates the access to global market by ads and media industry, and will drive overall upgrading of industry and realize leapfrog development.

Introduction of LED Displays

Introduction Of LED Displays

1. What is an LED? 
Light Emitting Diodes (LEDs) are small lamps that emit light when supplied with electricity. They come in many colours and shapes. Unlike incandescent lamps that convert electricity to heat and light with a filament, LEDs convert electricity directly into light, have no breakable filament, and are extremely efficient. LEDs are perfect for use in creating displays because of their high brightness, extremely long lifetime, and their very small size. Most LEDs are less than 1/4” in diameter.  For LED lamps size, it has 5050SMD, 3535SMD, 3528SMD.

2. What is a pixel?
 The word “Pixel” is an acronym for “picture element.” Pixels are small points of coloured light on a display surface that combine to form an image. If you look very close at your television, you can see the individual pixels that make up the screen.

3. How do LED displays create images?
 LED displays create images using pixels made with LEDs. In a red or amber monochrome LED display, each pixel is normally made with just one red or amber LED. In a colour LED display, pixels are made with three LEDs (red, green, and blue) grouped together. Since any colour can be made by mixing red, green, and blue light of various strengths, the exact colour of each pixel can be controlled by precisely controlling the light output from each LED.

4. LED displays seem to have different names. Do they all mean the same thing? 
Because LED displays are new technology, they have been given various names in recent years. Names include: Electronic message centers, digital billboards, digital screens, electronic message boards, marquee signs, LED displays, LED screens, video displays, etc. Each of these names is synonymous. And our LED curtain displays are very special, it is put the LED pixels on the cloth. The technology is on its screen constructure.

5. What does pixel pitch mean?
 "Pitch" is the center-to-center distance between pixels in a display, usually given in millimeters (mm). A smaller pitch means more tightly packed pixels and, therefore, higher resolution. Luminautics offers both 12 mm and 16 mm pixel pitch products for a range of applications.
6. What does resolution mean? Resolution describes the ability of a display to show image details. In general, a display with a larger number of pixels (smaller pitch) will have a higher resolution, and a display with fewer pixels (larger pitch) will have lower resolution.

6.What are the key factors affecting image quality?
a. Pixel pitch
The density of LEDs is the leading determinant of image clarity - the more LEDs per square foot, the smoother the image. The closer a viewer is to an LED display the more the LED density comes into play.
b. Contrast
Because LED displays are often used in brightly lit environments, especially in sunlit outdoor environments, it is important that the display surface does not reflect light. Reflected light will compete with LED light produced by the display to form images and cause a “wash out” effect where the image loses visibility.
Luminautics uses specially textured display surfaces made from high quality, nonfading engineering polymer, and will reflect less than 3% of incident light.
c. Color uniformity
Colour uniformity refers to how smooth an image will appear across the surface of a display.
Because LEDs are produced in batches by manufacturers, slight variations may occur in the amount of light that they produce from batch to batch—this is true even for amongst the world’s best suppliers.
Huasun measures each batch of LED tiles produced to determine the exact colour of each batch and employs a colour correction algorithm to adjust each tile for a flawless image.
d. Brightness
It means the luminous intensity in the certain direction per unit area of the LED display. Its metric units of CD / m2, or nits (nit). For outdoor application, it needs the brightness to reach at 5000 nits, for indoor application, it needs around 800 nits.
e. Refresh rate

Videos are created on displays by rapidly flipping images at speeds too fast for your eye to detect. The images that compose a video are called ‘refresh’. The speed of image play is called “refresh rate” and is measured in “frames per second” or FPS. The faster the refresh rate, the smoother the video will appear to the eye. Huasun displays are capable of playing images at a rapid refresh rate at 8000 Hz.