Small-sized LED lamp bead set and lamp beads

Abstract

The invention creatively provides a small-sized LED lamp bead set and lamp beads formed by cutting the lamp bead set. A bracket set forming the lamp bead set is formed by splicing a plurality of brackets; the brackets share a top point, and a through hole is formed in the top point shared by the brackets and used for allowing a conductive layer to be plated in, so that one conductive through hole can be shared by the brackets, the number of required through holes is effectively reduced, and the density of the through holes is reduced; moreover, the apertures of the through holes can be set to be relatively large, so that the process difficulty can be effectively lowered and the product yield can be increased.

Description

technical field [0001] The invention relates to the technical field of LED packaging, in particular to a small-sized LED lamp bead group and lamp beads. Background technique [0002] With the development of technology, the pixels of LED display screens are getting higher and higher, and the pixels are becoming more and more dense, which requires that the size of the LED lamp beads that make up the pixels must be very small, which has greatly improved the LED packaging technology. high demands. In the packaging technology, the core is the structure of the bracket, which determines the size and packaging structure of the final LED lamp bead. The bracket of the traditional patch type LED lamp bead is formed by injection molding on the metal bracket. The bracket protrudes metal pins to both sides. Obviously, the protruding pins to both sides will occupy part of the space, resulting in a large distance between adjacent LEDs. [0003] In this regard, the double-layer PCB board t...

AI Technical Summary

Problems solved by technology

However, there are still many difficulties in this technology: (1) Since an LED lamp bead needs to have multiple pins, especially colorful LED lamp beads, it includes more pins, and in this technology each Each pin needs to start a through hole to connect the pin to the upper copper foil of the bracket. When an LED lamp bead requires multiple pins, it means opening multiple through holes on the bracket, and as mentioned above Yes, the size of the bracket is very small, opening multiple through holes on such a small size at the same time, resulting in a high density of perforating needles, which is extremely difficult in the process

(2) Due to the very small size of the bracket, when multiple through holes need to be opened, the aperture of the through holes must be appropriately reduced, and the through holes with small apertures will easily lead to poor copper plating effect, resulting in poor electrical conductivity of the product

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