LED LCD screen will be replaced by the product?

Known as the future of the technology of LED (Light-Emitting-Diode- light emitting diode), gradually approaching our daily lives, and will promote the field of display a revolutionary change. LED display technology development beyond the expert's forecast, as an emerging industry, within 10 years, LED display is expected to reach $3 billion of output value. Liquid crystal display will be the same as the CRT display, out of the mainstream stage! At present, the world's energy, lightweight, miniaturization, high reliability of the product demand is extremely urgent, and LED display fully meet these conditions. LED is a full solid cold light source, smaller, lighter, more rugged, the operating voltage is only two volts, the service life of up to more than and 10 years. According to the usual definition of light efficiency, the luminous efficiency of LED is not high, but because of the spectrum of LED almost all concentrated in the visible band, the efficiency can reach 80-90%. LED display device has been available for more than 20 years, due to the use of raw materials and process constraints, the first 10 years is difficult to spread. After entering in 90s, with the continuous improvement of technology and the development of raw materials, LED display devices in the life and brightness indicators have been developed by leaps and bounds, the cost is greatly reduced. In performance, LED is developing very rapidly. 2001, the red LED brightness of 1000mcd, 3mcd times higher than in 1982, 500-3300 conversion efficiency reached 20%. The emergence of high brightness LED has epoch-making significance, it will be one of the greatest inventions of mankind after Edison invented incandescent bulbs. In the early development of the LED can emit red light, for light in electronic devices, with yellow, green and blue LED have come out, now, LED has been sent to red, yellow, blue, green, orange, amber, blue and green color, red blue, yellow green, green, green the green and white beams. This laid the technical foundation for the development of LED display. The technical progress of LED is the biggest driving force to expand the market demand and application. Initially, LED was just as micro indicator lamp, used in computer, audio and video recorders and other high-end equipment, with the development of large scale integrated circuit and computer technology, LED display is rising rapidly in recent years, gradually extended to the stock market stock machine, digital camera, PDA, mobile phone field.

LED display in microelectronics technology, computer technology and information processing in one, with its advantages of bright color, wide dynamic range, high brightness, long life, stable and reliable work, become a new generation of the most advantage of the media show, at present, the LED display has developed large wide field full color LED display, LED display, commercial advertising sports LED display, dissemination of information display, news display, securities trading screen, can meet the needs of different environments. Comparison of several main display performance:

type

Display capacity

contrast ratio

Colorization

gray level

brightness

Power waste

Screen size

Digitization

Life

cost

LED (diode)

great

very good

very good

very good

very good

Small

great

very good

Long

Very low

VFD (Ying Guang)

Not big

good

not good

not good

good

Small

large

good

commonly

Very low

PDP (plasma)

great

good

very good

good

preferably

Small

large

very good

commonly

higher

CRT (electron beam)

large

very good

very good

very good

commonly

less

Small

not good

commonly

higher

LED display and LCD display compared to LED in terms of brightness, power consumption, visual angle and refresh rate, have more advantages. LED display and LCD display power consumption ratio is about 10:1, and a higher refresh rate so that LED has better performance in the video, can provide up to 160 degrees wide angle, can display a variety of text, numbers, color image and animation information, you can also play TV, video, VCD, DVD color video the signal, a display can also be broadcast network. Organic LED display of a single element reaction speed is 1000 times the LCD LCD screen, can also be taken care of in the light, and to adapt to the low temperature of minus 40 degrees. Using LED technology, you can create a thinner, brighter, clearer display than LCD, with a wide range of applications. Due to the use of light-emitting organic materials, organic light-emitting LED does not require backlighting, lower cost, less power consumption than liquid crystal display. It can be believed that the maturity of LED technology, that is, the LCD screen to exit the market, the protagonist of the beginning. The next two or three years, the use of LED display will become the mainstream of the public environment.

Source: the age of projection