Can COB package lead the industry trend?

Packaging, the eternal topic of the LED industry, as the connection point of the upstream and downstream industries, plays a role in the transition. At present, the LED packaging methods are all-encompassing, COB display technology has made a big splash, becoming a major LED screen enterprises focus on promoting the new “process direction”, manufacturers have increased COB small pitch market investment efforts. With this, COB major technical achievements come strongly.

COB technology advantages are outstanding, the challenges encountered still can not be ignored

In recent years, the packaging industry has been in the stage of rapid drive and development of new materials and processes, new display technologies are emerging, the most notable of which is the COB package.
First of all, with ultra-thin, anti-collision and anti-pressure, heat dissipation capacity characteristics, according to the actual needs of customers, the thickness of the PCB board from 0.4-1.2mm thickness, so that the weight is reduced to at least 1/3 of the original traditional products, can significantly reduce the structure, transportation and engineering costs for customers; COB products directly encapsulate the LED chip in the PCB board within the concave lamp bit, encapsulated with epoxy resin adhesive Curing, the surface of the lamp point raised into a spherical surface, smooth and hard, impact and wear resistance; COB products are encapsulated in the PCB board, the heat of the wick through the PCB board copper foil quickly, and the PCB board copper foil thickness are strict process requirements, coupled with the sink gold process, almost no serious light attenuation, so rarely dead lights, greatly extending the life of the LED display.
Secondly, bendable, bendable ability is the unique characteristics of COB package, PCB bending will not cause damage to the encapsulated LED chip, so the use of COB module can easily produce LED arc screen, round screen, wave-shaped screen. It is the ideal substrate for bars and nightclubs personalized modeling screen. Can do no gap splicing, production structure is simple, and the price is far lower than the flexible circuit board and traditional display module made of LED shaped screen. All-weather excellent is also a big feature of COB, using triple protection treatment, waterproof, moisture, corrosion, dust, static electricity, oxidation, UV effect is outstanding, to meet the all-weather working conditions, minus 30 degrees to minus 80 degrees temperature difference environment can still be used normally.

Policy, technology, market all have, future development can be expected

In recent years, the packaging industry has been in the stage of rapid drive and development of new materials and processes, new display technologies are emerging, the most notable of which is the COB package.
First of all, with ultra-thin, anti-collision and anti-pressure, heat dissipation capacity characteristics, according to the actual needs of customers, the thickness of the PCB board from 0.4-1.2mm thickness, so that the weight is reduced to at least 1/3 of the original traditional products, can significantly reduce the structure, transportation and engineering costs for customers; COB products directly encapsulate the LED chip in the PCB board within the concave lamp bit, encapsulated with epoxy resin adhesive Curing, the surface of the lamp point raised into a spherical surface, smooth and hard, impact and wear resistance; COB products are encapsulated in the PCB board, the heat of the wick through the PCB board copper foil quickly, and the PCB board copper foil thickness are strict process requirements, coupled with the sink gold process, almost no serious light attenuation, so rarely dead lights, greatly extending the life of the LED display.
Secondly, bendable, bendable ability is the unique characteristics of COB package, PCB bending will not cause damage to the encapsulated LED chip, so the use of COB module can easily produce LED arc screen, round screen, wave-shaped screen. It is the ideal substrate for bars and nightclubs personalized modeling screen. Can do no gap splicing, production structure is simple, and the price is far lower than the flexible circuit board and traditional display module made of LED shaped screen. All-weather excellent is also a big feature of COB, using triple protection treatment, waterproof, moisture, corrosion, dust, static electricity, oxidation, UV effect is outstanding, to meet the all-weather working conditions, minus 30 degrees to minus 80 degrees temperature difference environment can still be used normally.

The current LED small pitch display products homogenization phenomenon is serious, SMD packaging technology after years of development, into a bottleneck, in the product spacing has reached the ceiling, while the user is very concerned about several pain points hope to be improved, such as: dust, water, impact, product stability and reliability, etc., these let the user consume a lot of energy. From the classification of packaging technology, COB small pitch LED is small pitch 2.0 era products, eliminating the SMD package of lamp bead packaging, SMD, reflow soldering and other processes, stability and reliability has been greatly improved. Especially in the command and control center and other high-end market, COB’s high stability, maintenance and repair convenience and viewing comfort will be highly recognized, and also bring greater application space for the future development of COB in the market.
Not only the market, technical advantages, COB technology in the Chinese government policy is also to take advantage of the time, the national “Thirteenth Five-Year Plan” key research projects – strategic advanced electronic materials – new display subject of the project funding, the main task is to break through the traditional small pitch The main task is to break through the shortcomings and limitations of traditional small-pitch LED display technology. When the policy, technology, market, timing, location, and people have been fully equipped, COB technology should go forward, the future is promising!
The emergence of COB technology, with small pitch LED products to a higher level, to bring better user experience for the end market, but we can not predict, there will be what kind of high precision technology waiting for the LED display industry in the future, will bring what kind of surprise for the user. What kind of surprise will be brought to users, let us wait and see!