Analysis of ten advantages of LED panel light backlight technology
In terms of the cost of LED panel light backlights and traditional CCFL backlights, LED panel light backlight technology has become mainstream today, with many advantages such as no mercury, low energy consumption, good color, and long life. It has been recognized by consumers . At the same time, the cost of small-sized LED panel light backlights has gradually dropped to a price that is very close to that of CCFL backlights. For consumers, having an energy-saving, environmentally friendly and affordable product will naturally be sought after by consumers.
With its unique and overwhelming advantages, LED panel light backlight technology has gradually shown a strong application prospect. Then, Xinjielighting, the manufacturer of Backlit LED Panel Light, will give you an in-depth analysis of LED panel light backlight technology compared with CCFL backlight technology. What are the advantages of LED panel light backlight technology?
LED panel light backlight technology: ten leading advantages
Compared with traditional backlight technology, LED panel light, as the backlight source of LCD, has many unique advantages in addition to the advantages in the color gamut range, which can be summarized into ten aspects:
1) LED panel light backlight has better color gamut.
Its color expression is stronger than that of CCFL backlight, which can make up for the insufficient number of colors displayed by liquid crystal technology, and the color reproduction effect of Backlit LED Panel Light is better.
2) The service life of Backlit LED Panel Light can be up to 100,000 hours.
Even if it is used continuously for 10 hours a day, it can be used continuously for 27 years, which greatly prolongs the service life of LED Panel Light and obtains the overwhelming advantages of plasma technology.
3) Backlit LED Panel Light has a large brightness adjustment range.
Achieving Backlit LED Panel Light power control is easy, unlike CCFL where there is a threshold for minimum brightness. Therefore, it is easy for users to adjust the brightness of the display device Backlit LED Panel Light to the most pleasing state, no matter in bright outdoor or completely dark indoor.
4) Perfect moving images.
The flickering frequency of traditional CCFL lamps is low, and the performance of dynamic scenes may cause screen jumps. Backlit LED Panel Light can flexibly adjust the light-emitting frequency, and the frequency is much higher than that of CCFL, so it can perfectly present moving pictures.
5) Real-time color management.
Because the 3 colors of red, green and blue emit light independently, the Backlit LED Panel Light is easy to precisely control the current display color characteristics.
6) Adjustable backlight white balance while ensuring the overall contrast of Backlit LED Panel Light.
Backlit LED Panel Light can easily adjust white balance between 9600K and 6500K when users switch lights without sacrificing brightness and contrast.
7) It can provide continuous area light source for large screen.
LED is a flat light source. The most basic light-emitting unit is a square package with a side length of 3~5mm. It is very easy to combine together to form a surface light source of a given area. It has good brightness uniformity and is required for Backlit LED Panel Light. The auxiliary optics can be made very simple, and the brightness uniformity is better.
8) Safety.
Backlit LED Panel Light uses a low voltage power supply of 5~24V, which is very safe, and the design of the power supply module is quite simple.
9) Environmentally friendly.
The LED panel light source does not produce any rays, nor does it contain toxic substances such as mercury, which can be described as a green light source.
10) Earthquake resistance.
The flat structure allows the LED panel light to have a stable internal structure and excellent shock resistance.
One of the advantages of LED panel light backlight technology: energy saving and environmental protection
LED panel light backlight is the abbreviation of LightEmittingDiode (Light Emitting Diode), a light-emitting device that can directly convert electrical energy into light energy.
As a new generation of LCD backlight panels, it has the outstanding features of low power consumption, high brightness and long life.
As an LCD backlight source, CCLF (Cold Cathode Lamp) is the main element that cannot be missing is mercury. This is also known as mercury, and this element is undoubtedly a substance that is harmful to the human body.
Compared with the traditional CCFL backlight, the LED panel light backlight can save more than 40% energy compared with the general CCFL backlight civilian-grade products of the same specification, which has a great improvement in energy saving. In addition, mercury in CCFL backlight is a substance that is quite harmful to the environment, but LED panel light backlight does not contain such harmful substances, which is more conducive to environmental protection.
The second advantage of LED panel light backlight technology: thin and elegant
The LED panel light backlight is composed of many grid-shaped semiconductors, and each "grid" has an LED semiconductor, so that the planarization of the light source can be successfully realized. The flat light source of Backlit LED Panel Light not only has excellent brightness uniformity, but also does not require complicated light path design. In this way, the thickness of the Backlit LED Panel Light can be made thinner and lighter, and at the same time, it can have higher reliability and stability.
Conventional CCFLs are tubular light sources, which require complex auxiliary components to evenly distribute the light they emit to every area of the panel.
The thickness of the screen is also difficult to control, and with the increase of the panel, multiple light sources must be used, which further increases the complexity and cost of the design, and large-screen LCD TVs are more sensitive to this. For example, for LCD or TV products over 50 inches, the cost of direct-type CCFL backlight modules may account for more than half of the panel cost.
The third advantage of LED panel light backlight technology: ultra-wide color gamut
The LED panel light backlight has the characteristics of more uniform light emission, which is far better than the CCFL backlight in terms of color expression. It can play a good role in making up for the insufficient number of displayed colors in liquid crystal technology, and easily achieve a wide color gamut of NTSC118% or even higher, allowing the liquid crystal display to truly restore the bright colors in the colorful nature.
The traditional CCFL backlight technology, due to the limitation of fluorescent materials, the red light rendering ability of the lamp tube is weak, and the color mixing effect of the matching color filter is also poor. It can only achieve the NTSC color area of 65-75%. By using the improved CCFL light source, it can only reach the color gamut range of about 90% of the NTSC ratio, which affects the image quality.
The fourth advantage of LED panel light backlight technology: long life
The life of the LED panel light backlight can be as long as 100,000 hours, even if it is used continuously for 10 hours a day, it can be used continuously for 27 years. Therefore, after a long use time of LCD monitors or LCD TVs using LED backlights, the brightness attenuation of the backlights is better than that of CCFL backlights.
The service life of ordinary CCFL backlight is about 25,000 hours, and the luminous life of the latest top CCFL backlight is only 60,000 hours. At the end of the service life, the brightness of the LCD will drop significantly, and the CCFL backlight module of the LCD has to be replaced.
The LED panel light backlight does not have such a problem at all. At this stage, the actual service life of the white LED panel light backlight is 50,000 to 100,000 hours, which is basically the same as the service life of the LCD display, and there is potential for further improvement. Even with 24 hours of uninterrupted use, it is enough for 5 years. Therefore, the luminous life of the LED panel light backlight is far longer than that of the CCFL backlight.
The fifth advantage of LED panel light backlight technology: to achieve high brightness
The brightness adjustment range of the LED panel light backlight is large, and the light-emitting frequency can be flexibly adjusted. The frequency is much higher than that of the CCFL backlight, so it can perfectly present moving pictures. However, the flickering frequency of traditional CCFL backlight lamps is relatively low, which may cause jumping pictures when performing dynamic scenes.
As a passive display device, a liquid crystal display does not emit light by itself. It relies on a backlight to transmit light through the display panel to display graphic images. Therefore, the technology of the backlight directly affects the picture quality of the LCD TV.
Traditional liquid crystal displays usually use cold cathode fluorescent lamps (CCFLs) as light sources, and it is CCFLs that cause the liquid crystal displays to have insufficient colors and poor color reproduction.
The sixth advantage of LED panel light backlight technology: adjust the white balance
The LED panel light backlight can adjust the backlight white balance while maintaining the overall contrast ratio. White balance can be easily adjusted between 9600K and 6500K without sacrificing brightness and contrast as users' video sources switch between computer and DVD players.
A white balance adjustment method based on RGB three-color LED panel light backlight, including when the display is running independently, when the backlight is adjusted to a new brightness level, reading the value of the temperature sensor on the backlight board, if the current color sensor The actual value is larger than the standard value, reducing the current duty cycle of this lamp a little.
Conversely, the current duty cycle of such lamps is increased a little. In order to obtain standard values of drive current duty cycle and color sensor, particle swarm algorithm is used. The advantage is that the white balance adjustment under a wide temperature is automatically performed, the response speed is improved, the labor intensity of human beings is reduced, and the efficiency is improved.
The seventh advantage of LED panel light backlight technology: ultra-high contrast ratio
Compared with the traditional CCFL fluorescent lamp backlight, the LED panel light backlight can further improve the luminous uniformity. With the LED panel light supporting multi-point control, the contrast ratio of the LED panel light backlight display can be greatly improved to a height of 1 million:1.
In simple terms, the contrast ratio is the same as the full on/off contrast ratio, which is also the ratio of the brightness displayed by the test monitor when it receives a full white signal to the brightness of the full black signal display. Different from the full-on/full-off contrast ratio, the display will adjust the brightness of the backlight tube, so that the brightness of the display will be higher when receiving a full-white signal, and the brightness of the display will be lower when receiving a full-black signal, and then to a larger display. numerical value.
With the pull of the liquid crystal display market, the LED panel light backlight industry has shown a flourishing scene. With the continuous progress in the level of display technology, the huge LED panel light market is destined to develop into a huge industry.
After years of development, the LED panel light display industry has gradually become mature, and its application fields have been continuously expanded. From the statistics of recent years, there are more than 140 companies with an annual output value of hundreds of millions in the domestic LED panel light industry, which fully proves that the market share of LED panel light displays is rising. From a market perspective, LED panel light backlight technology does have its advantages.
Well, the above-mentioned backlight LED panel light manufacturers have brought you all about the backlight technology of LED panel lights. I hope the above content will be helpful to you. For more information about LED panel lights, please refer to our previous articles:
Five advantages of LED panel light!
