This paper describes the high failure rate and frequent maintenance of LED display

With the rapid development of the automobile market in recent years, the number of green brand cars that can be seen on the road is also increasing, and these green brand pure trams are called electric fathers by netizens. The reason for this title is that cars are originally an improvement commodity that can improve the convenience of our lives and free our feet to start anytime and anywhere. However, due to the limitation of continuous distance and imperfect charging facilities, electric vehicles have brought great inconvenience to owners' daily use. In addition to the inconvenience of daily charging, Both winter and summer seasons need cooling and heating air conditioning, as the owner must be appropriate to use, priority to ensure the limited power supply and protection of the driving distance, as a mobile tool, the owner can not enjoy a convenient and comfortable driving experience.

Dubai indoor LED display

Like electric vehicles, LED display technology and LED displays are also known as future-oriented display technologies and products, and are the technical route for the future of the large-screen display industry, and now both manufacturers and industry media are conducting a lot of publicity, marketing and commercial momentum activities. However, LED display-related products are likely to fall into the predicament of electric vehicles becoming electric fathers - practicality is greatly reduced, and daily maintenance needs more cost.

Please don't believe it. Because LED manufacturers will not completely tell the truth, so in the commercial promotion to improve the advantages of the product as far as possible, deliberately avoid the disadvantages of light weight is to avoid the usual operation, only from the current market research and user feedback, LED display exposed the shortcomings of frequent failures, frequent faults to the user's feeling is the user's normal use of the product, Frequent product maintenance.

The reason for the frequent maintenance of LED displays is that LED displays are prone to lamp bead defects (including bright spots, black spots, etc.), and the brightness attenuation and attenuation of the unit module are inconsistent. However, these lamp bead defects and unit module attenuation problems of LED displays come from the reasons of their own production technology, so they basically can only be changed.

Taking the ordinary P2.5_LED display as an example, the point spacing between the LED beads is 2.5mm, and the LED display has 160,000 points of LED beads per square meter, which is obviously a product produced by precision machining technology, and the current production technology has very high requirements for the production line, but the current technology and technology

In the face of the unit attenuation problem, although the manufacturer chooses the same batch of products for uniform color adjustment at the time of delivery to ensure that the color difference of the display unit in the same batch reaches the minimum value, the same batch of screens also have a very small color difference problem under the all-white screen conditions, which is inevitable. Because the backlight parameters of each screen can not be completely consistent, it is usually seen that the deviation, especially after the product is used for a period of time, as the brightness attenuation curve between different units is inconsistent, the color difference of the display screen is becoming more and more serious.

In fact, according to market research and user feedback, LED display in the actual use of the environment, generally in the new setting of about half a year to expose the problem, the state of the display becomes unstable, which frequent small problems include lamp bead damage/bright spot or the brightness attenuation of the entire unit is inconsistent (does not affect the use but affects the beauty), The big problem is that direct screen and black screen need to stop maintenance

The fault maintenance of LED display can not usually be completed by ordinary equipment maintenance personnel. In general, the manufacturer needs to arrange engineers for maintenance, the maintenance process is also very troublesome, the need to disassemble the damaged target display unit for maintenance or direct replacement (usually inclined to maintenance, direct replacement of the new display unit, the brightness attenuation curve of the old and new display unit is inconsistent, easy to form different Yin and Yang screen phenomenon), very time-consuming.

Especially now there are small pitch LED displays with COB, the complexity of fault repair is higher. In order to realize the finger touch function on the screen, a transparent glass mask is installed on the surface of the lamp bead of the display. In the event that the small pitch LED display of this COB fails and needs to be repaired, the next repair of the screen needs to be carried out after uninstalling the glass mask installed at this level.

Compared with the LED display, the laser display is a simpler and more reliable large-screen display product, because the laser light source it uses has good long-term stability (laser is known as the brightest light in the scientific community, the brightness is almost no attenuation), the service life of up to 60,000 hours, and the normal use of 5-7 years will not appear obvious image quality attenuation and other problems. There's basically no maintenance involved.

At the same time, the laser screen as a whole adopts the box structure design, the box becomes a small system, not only good sealing, but also can eliminate other external factors on the laser screen itself, the box has a good small system adjustment function, independent adjustment of the box temperature, humidity and other environmental indicators, to maintain a cool and dry electronic equipment working environment