What are the full-color-p2LED display distinguishing skills?

What are the full-color-p2LED display distinguishing skills?

LED lamp bead as the LED display p2 cost is relatively high, the largest amount of components, for the LED display p2 quality impact plays a leading role. The following Yunhai Optoelectronics will introduce the factors affecting the LED display panel p2.

The most critical component of the full color LED display p2 is the LED lamp bead. There are three reasons:

First, LED is the most used key component in the full-color screen, using thousands to tens of thousands of LEDs per square meter;

Second, the LED is the main body that determines the optical display performance of the entire screen, directly affecting the audience's evaluation of the display screen;

Third, LEDs account for the largest proportion of the overall cost of the display, ranging from 30% to 70%.

So what are the effects of LED lamp beads on LED display p2?

1, perspective

The angle of view of the LED display p2 is determined by the angle of view of the LED bead.

At present, indoor display screens mostly use LED lamp beads with horizontal/vertical angles, so that the horizontal/vertical viewing angle of the micro-pitch LED display can reach 160 degrees.

2, brightness

LED brightness is an important determinant of display brightness. The higher the brightness of the LED, the larger the margin of current used, which is beneficial for saving power and keeping the LED stable.

The brightness of the traditional LED display p2 reaches 4500-6000 cd. Some manufacturers will increase the module current to increase the brightness. As a result, the life of the lamp be reduced, and the brightness of the LED display p2 is reduced by 15%-30% for one year.

Yunhai photoelectric LED display p2 brightness reaches the standard 7000cd, plus the lamp beads use nano-matt technology to reduce the black-and-white contrast, the picture is still clear under direct sunlight, the screen control system plus automatic light-sensing equipment, the brightness can be automatically adjusted according to the external light intensity. It also avoids light pollution and achieves effective energy saving.

3, failure rate

Since the full-color display is composed of tens of thousands or even hundreds of thousands of red, green and blue LEDs, the failure of any color LED will affect the overall visual effect of the display. In general, according to industry experience, the failure rate before the assembly of the LED display p2 to the aging 72 hours before shipment should be no more than three ten thousandth (refer to the failure caused by the LED lamp itself).

4, antistatic ability

LEDs are semiconductor devices that are sensitive to static electricity and can easily cause electrostatic failure. Therefore, antistatic capability is critical to the life of the display. In general, the LED's human body static mode test failure voltage should not be lower than 2000V.

5, life

The theoretical life of LED devices is 100,000 hours, which is much larger than the working life of other components of LED display p2. Therefore, as long as the LED device quality is guaranteed, the working current is suitable, the PCB heat dissipation design is reasonable, and the display production process is rigorous, the LED device will be the display. One of the most durable parts in the machine.

The lamp beads purchased by Yunhai Optoelectronics come with a heat sink bracket, which transfers heat to the aluminum shell through the PCB circuit board for heat dissipation, eliminating the need to install air conditioners and reducing unnecessary costs. The components of the module are made of high-end custom, strong and weak electric cables are pure copper tinned wire silicone wire sleeve cable, which can resist low temperature of -40 °C, high temperature of 200 °C, no deformation under any environment, no oxidation, connection The plug-in is a XT60 pure copper full-sealed plug-in for RC, which is not affected by any external influence. The power supply and main control card are fully sealed with an all-aluminum mold kit. The performance of the accessories is extremely stable and reliable.

6, attenuation characteristics

LED display p2 will experience a decrease in brightness and inconsistent display color after a long period of operation, mainly due to the brightness degradation of the LED device. Attenuation of the brightness of the LED will cause the brightness of the entire screen of the display to decrease. Inconsistent brightness attenuation of red, green and blue LEDs will cause inconsistency in the color of the LED display p2, which is what we often say about the display screen. High quality LED devices provide excellent control of the brightness attenuation. According to 1000 hours of normal temperature lighting 20mA standard, red attenuation should be less than 2%, blue and green attenuation should be less than 10%, so blue and green LEDs should not use 20mA current in the display design, only 70% to 80% Rated current. In addition to the characteristics of the red, green and blue LEDs, the attenuation characteristics are affected by the current, the heat dissipation design of the PCB, and the ambient temperature of the display.

7, size

The size of the LED device affects the pixel point distance of the LED display p2, ie the resolution. The 5mm elliptical lamp is mainly used for outdoor display above P16, the 3mm elliptical lamp is mainly used for outdoor display of P12.5, P12 and P10, and the 3528 type patch LED is mainly used for indoor display of P6 and P8. 2020 type SMD LED is mainly used for indoor display such as P2 and P3. Under the premise of constant dot pitch, the LED device size increases, which can increase the display area and reduce the graininess. However, due to the reduction of the black area, the contrast will be reduced. On the contrary, the LED size is reduced, the display area is reduced, and the graininess is increased. The area of ​​the black area increases and the contrast is increased.

8, consistency

The full-color display is composed of countless red, green and blue LEDs. The brightness and wavelength consistency of each color LED determine the brightness consistency, white balance consistency and uniformity of the entire display. Sex.

In order to achieve the consistency of brightness change at different angles of red, green and blue, it is necessary to strictly carry out scientific design on the design of package lens and raw material selection, depending on the technical level of the package supplier. In the normal direction, the white balance is good. If the angle of the LED is not consistent, the white balance effect at different angles of the whole screen will be bad. The angle uniformity of the LED lamp bead can be measured by the LED angle comprehensive tester, which is especially important for medium and high-end displays.

What are the full-color-p2LED display distinguishing skills?

With the continuous advancement of technology, the development of the LED display p2 industry is changing with each passing day, and there are many products that we have not seen before. What I am introducing here today is the performance characteristics of the small-pitch LED display p2. Knowing what its characteristics are, it is also more sensible to choose when buying LED display p2.

Small pitch LED display p2

You may know about the small-pitch LED display p2 but I don't know why, let me introduce you to the performance characteristics of the small-pitch LED display p2.

Performance characteristics of small pitch LED display p2

1. Energy-saving: It is a cold light source, relying on semiconductor light, ultra-low power, 1000~2000 lumens/watt, light source life of 10,000 hours, light decay 5%~10%. Semiconductor lighting itself has no pollution to the environment, compared with other full-color LED display p2, the power saving efficiency can reach more than 95%. At the same brightness, the power consumption is only 1/10 of that of an ordinary incandescent lamp and 1/2 of a fluorescent tube.

2. Health: It is a green light source. DC drive, no stroboscopic; no infrared and ultraviolet components, no radiation pollution, high color rendering and strong directionality; good dimming performance, no visual error when color temperature changes; cold light source generates low heat It can be touched safely; these are not possible with incandescent and fluorescent lamps. It not only provides comfortable lighting space, but also satisfies people's physiological health needs. It is a healthy light source that protects vision and is environmentally friendly.

3, small-pitch LED display p2 small, light weight, epoxy resin package, can withstand high-strength mechanical shock and vibration, not easy to break, the average life expectancy of 200,000 hours, the lamp life can reach 10 to 20 years, can be greatly Reduce the maintenance cost of the luminaire to avoid the frequent replacement of the lamp, which can be described as "one time and for all"

4, the practicality of the small pitch LED display p2

It can ensure the normal lighting use, ensure the use of light hygiene, protect the eyes, protect eyesight, light color has no abnormal psychological or physiological reaction, the lamp is firm, and the line safety switch is flexible. In a sense, the decorative nature of the small-pitch LED display p2 is also practical, otherwise, the decorative problem will not be discussed. For example, using lamps to decorate the living room allows people to relax while enjoying the body and mind. This lighting effect reflects the practical value of decoration.

5, small spacing LED display p2 decorative

The small-pitch LED display p2 is ornamental, the material of the lamp is beautiful, the shape is unique, the color is relatively new and beautiful; the second is coordination, the display form is carefully designed, coordinated with the room decoration, matching with the furnishings, the lighting material and The consistency of the furniture body material can reflect the owner's artistic conception; the third is to highlight the individuality and the color of the light source to create an atmosphere according to people's needs, such as warm, calm, comfortable, quiet, peaceful and so on. Highlight the special characteristics of the owner's requirements for lighting, reflecting different personalities. Under the premise of ensuring the use of light, it gives people the artistic enjoyment of beauty. This is the combination of practicality and decoration of lighting. For each lighting, there is emphasis on lighting and emphasis on decoration. . When selecting, it is necessary to combine the characteristics of different personnel, different uses and interior decoration requirements.

To understand the factors affecting the LED display panel p2, it is very important to choose a high-quality LED display p2.