Digital LED lamp and packaging technology thereof

Abstract

The invention provides a digital LED lamp and a packaging technology thereof. The digital LED lamp comprises a base, a driving chip, a plurality of pins, a plurality of LEDs and an outer housing; wherein, the base is provided with a copper sheet, the driving chip and the LEDs are arranged on the copper sheet, the output number of the driving chip is corresponding to that of the LEDs, and the number of the ports of the driving chip is corresponding to that of the pins; the outer housing is covered on the base, and the digital LED encapsulation lamp with a whole sealing structure is formed after the base is fixed with the outer housing; the packaging technology is that the copper sheet is adopted to manufacture a base bracket, then a plastic bottom plate is stuck on the back of the bracket, so that the base is formed; the driving chip and the LEDs are stuck on the copper sheet of the base by silver paste, and then are roasted by high temperature to be fixed; all the ports are connected with the corresponding pins and LEDs by gold thread or copper wire; the whole product is encapsulated by being covered with the outer housing. The digital LED lamp not only can realize point-to-point drive, but also has extremely small volume, so that the size and the shape of a screen can be regulated according to the actual needs.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a digital LED lamp and a packaging process thereof. Background technique [0002] Human society is entering the era of optoelectronics. It is estimated that from 2010 to 2015, the optoelectronic industry will replace the traditional electronics industry, be promoted to the largest industry in the 21st century, and become an important symbol to measure a country's economic development and comprehensive national strength. At present, as a kind of photoelectric product, LED large-screen electronic display has attracted people's attention day by day. It can display text, graphics and image information in real time or in a loop. It has many advantages such as rich display methods, strong ornamental value, convenient display content modification, high brightness, stable display and long life. It is widely used in commercial advertisements and sports competitions. , transportation and man...

AI Technical Summary

Problems solved by technology

[0003] The current LED large-screen display system is made of dot matrix templates, usually 8×8, 16×16 circuit boards. The larger the screen, the more templates are needed, and the more complicated the circuit connection

And once the size is fixed, it is very difficult to change it again, and the flexibility is not strong

At the same time, due to the complexity of the background circuit, when a template is damaged and needs to be replaced, it is very easy to damage the adjacent template; and the newly replaced template is different from the old LED due to the light intensity and color difference of the new LED, resulting in a patch phenomenon

Due to the large number of pixels in the LED screen, in order to save hardware, a dynamic scanning method is usually used. This method is feasible for a small LED screen display system, but for a large LED screen, with the increase of pixels, Data transmission will take up a lot of time, the display brightness of the screen will drop significantly, and the refresh rate of the screen will not be able to keep up, which is prone to discontinuous pictures

The current LED screens still have the disadvantages of short life and low cost performance. Most LED screens can only provide one-year warranty. The main reason is that the repair effect is not good, especially outdoor screens, which usually cannot be repaired after two years of use.

[0004] In recent years, a new linear LED light has appeared, which is to package 2 red lights, 1 green light and 1 blue light together as a whole, but the chip and LED are not packaged together, such linear LED lights exist The disadvantage is that if a lamp is broken, the signal cannot continue to be transmitted, which will affect the control of other lamps by the chip, and the brightness and color of the lamp must be controlled by other chips, which increases the complexity of the design and does not achieve real digital control

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