LED screen tech: high brightness and energy saving

How to get more energy-efficient for LED screen working, a lot of people are concerned about this issue. We know that power consumption switching power supply, driver IC, product design, energy-saving intelligent system design, and structural energy-saving design and other aspects of implementation. However, in these areas to find the best balance point will be able to achieve the best energy-saving LED screen effect. Do not know at what time, high energy-saving LED display screen has quietly been the concept of "high brightness" vague, even replace this concept, under the same cost, the brightness of the display screen as high as possible "energy saving", the more value-for-money! And gradually became their feedback to the customer value-for-money "value for money" advantage.

In practice, in order to achieve good energy-saving goals, contrary to what the pursuit of high brightness and energy-saving. Next, we have to analyze what "high brightness" and "high energy" a potential relationship. Today, the domestic pop 12000cd/m2 High Brightness LED lamp LED chips are basically using large size. When known, the brightness of the LED screen is proportional to the driving current. 12000cd/m2 the brightness depends on increasing drive current of LED lights. However, physical characteristics of the light will be inevitable: High-Brightness lamps with high attenuation and low stability characteristics. High attenuation is not conducive to the long-term requirements of LED screen and will also be overdoing the high brightness of birth defects, and that birth defects as it will in time, the multiplier effect, to undermine the life effect.

Below we highlight PH16mm display, for example, the High-Brightness technical data: 12000cd/m2 brightness within 1.5-2 years will be seriously reduced to 8000cd/m2, whose annual decay rate of 20% percent. While manufacturers some irresponsible propaganda claimed 2 years later when the brightness is up to 10000cd/M2 or more, while consumers bought the screen, even after 2 years decreased rapidly, but contracts have been fulfilled, have nowhere to lodge their complaints.

Consumers in a very simple way you can actually verify is to look at a few have run for more than 2 years, and used more than 12 hours a day of such a high brightness screen for effect. More serious is that in brightness from 12000cd/m2 per cent to 8000cd/m2 after its high operating current situation does not change, it will double the speed of its brightness decay, decay speed of late several times, becoming high attenuation of the display. And involved in the vicious cycle of luminosity attenuation existence, cannot meet the requirements of long-term use.

In reality, in order to avoid light pollution, comply with environmental regulations, full color LED screens day and the night using the brightness of the standards are not the same. It is well known that losses reduce brightness more or less gray, brightness adjustment, the greater, greater burnout. Therefore, such as LED displays the day of the initial intensity value is set to 12000cd/m2, while lower at night to 800cd/m2 the brightness, or extreme loss of gray, makes the night quality became very poor; or brightness cannot be adjusted to the standard requirements for night use and the formation of severe light pollution.

Thus, recommended for high brightness on the market value of LED display manufacturing technology does not mean that advanced technology, but rather a serious sacrifice life in Exchange for the display of high-current high-brightness. It may produce a meretricious stretched intrusion. How to get more energy-efficient, a lot of people are concerned about this issue, the industry is no stranger to this, from the bright LED lights, power consumption switching power supply, driver IC, product design, energy-saving intelligent system design, and structural energy-saving design and other aspects of implementation. However, in these areas to find the best balance point will be able to achieve the best energy-saving LED display effect. Do not know at what time, high energy-saving has quietly been the concept of "high brightness" vague, even replace this concept, at the same cost, the brightness of the display screen as high as possible "energy saving", the more value-for-money! And gradually became their feedback to the customer value-for-money "value for money" advantage.

Today, the domestic pop 12000cd/m2 High Brightness LED chips are basically using large size. This large size LED chip is as mainstream is most commonly used by manufacturers of LED screen and no technology whatsoever. When known, the brightness is proportional to the driving current. 12000cd/m2 the brightness depends on increasing drive current. However, physical characteristics will be inevitable: High-Brightness with high attenuation and low stability characteristics. High attenuation is not conducive to the long-term requirements and will also be overdoing the high brightness of birth defects, and that birth defects as it will in time, the multiplier effect, to undermine the life of LED screen and the desired effect.

Below we highlight PH16mm display, for example, the High-Brightness LED lamps technical data display: 12000cd/m2 brightness within 1.5-2 years will be seriously reduced to 8000cd/m2, whose annual decay rate of 20% percent. While manufacturers some irresponsible propaganda claimed 2 years later when the brightness is up to 10000cd/M2 or more, while consumers bought the screen, even after 2 years decreased rapidly, but contracts have been fulfilled, have nowhere to lodge their complaints. Consumers in a very simple way you can actually verify is to look at a few have run for more than 2 years, and used more than 12 hours a day of such a high brightness screen for effect. More serious is that in brightness from 12000cd/m2 per cent to 8000cd/m2 after its high operating current situation does not change, it will double the speed of its brightness decay, decay speed of late several times, becoming high attenuation of the display. And involved in the vicious cycle of luminosity attenuation existence, cannot meet the requirements of long-term use.

In reality, in order to avoid light pollution, comply with environmental regulations, LED screens day and the night using the brightness of the standards are not the same. It is well known that losses reduce brightness more or less gray, brightness adjustment, the greater, greater burnout. Therefore, such as full-color LED screens the day of the initial intensity value is set to 12000cd/m2, while lower at night to 800cd/m2 the brightness, or extreme loss of gray, makes the night quality became very poor; or brightness cannot be adjusted to the standard requirements for night use and the formation of severe light pollution. Thus, recommended for high brightness on the market value of full color LED display manufacturing technology does not mean that advanced technology, but rather a serious sacrifice life in Exchange for the display of high-current high-brightness. It may produce a meretricious stretched intrusion.