LED circuit structure

The utility model provides a light-emitting diode (LED) circuit structure. First cutout performed a substrate forms plural first cutout regions and plural first material regions. Second cutout performed on the substrate forms plural second cutout regions, plural third cutout regions, plural second material regions, and plural third material regions. Besides, a second adhering layer is adhered to another side, which is opposite to the substrate, of the first adhering layer; a heat dissipation layer is adhered to another side, which is opposite the first adhering layer, of the second adhering layer. Accordingly, such the LED circuit does not require conventional electroplating, etching, and washing processes, and further not only the effect of saving energy and reducing carbon emission can be achieved, but also the effect of being flexible, reducing a manufacturing time and reducing manufacturing costs can be achieved.

BACKGROUND OF THE INVENTION

1. Technical Field

The present utility model relates to a flexible light-emitting diode (LED) circuit structure that can be manufactured by a reduced time and in decreased costs.

2. Background Art

With advantages such as a long service life, low energy consumption, and a small volume, LEDs are gradually used as light sources of various light emitting apparatuses to replace conventional light source devices. Besides, with the rise of the environmental protection awareness around the world, energy conservation and power saving has become at rend nowadays. LED products have advantages of being energy-conserving and power-saving, being efficient, responding quickly, having a long service life, containing no mercury, being environmentally-friendly, and so on. However, light output efficiency of current LEDs ranges from 20% to 30%, and the remaining 70% to 80% of the electricity is all converted into heat.

If the heat cannot be dissipated smoothly, the temperature of the LED products will become excessively high, thus affecting the service life, luminous efficiency and stability of the products.

A substrate is an important part in an LED apparatus. The substrate is mainly used for dissipating heat generated between an LED and a system circuit board. Commonly known LED substrates include silicon substrates, silicon carbide substrates, aluminum nitride ceramic substrates, aluminum oxide ceramic substrates, and so on. In addition, a general processing procedure of a heat dissipation aluminum substrate is as follows: (degreasing/pickling→washing→micro-etching/mechanical plate grinding→washing→drying)→PE film stripping→film attaching (preheating→film attaching→cooling)→exposing→PET film stripping→film stripping→developing (developing→washing→drying)→etching.

Because the heat dissipation aluminum substrate cannot be bent, it is not applicable to special curved surfaces and cannot meet special requirements. Moreover, the heat dissipation aluminum substrate needs to be subject to the foregoing processing procedure before a conductive circuit is formed, and each step in the processing procedure requires a very long processing time. The etching and electroplating processes easily cause environmental pollution and cannot save energy or reduce carbon emission.

Moreover, the LED substrate requires a long manufacturing time, and requires relatively high manufacturing costs.

Therefore, how to solve the problems and defects in the prior art is an issue that the designer of the present utility model and related vendors in the industry need to study and address urgently.

SUMMARY OF THE UTILITY MODEL

In order to effectively solve the foregoing problem, a main objective of the present utility model is to provide a flexible LED circuit structure that can reduce a manufacturing time and manufacturing costs.

In order to achieve the foregoing objective, the present utility model provides an LED circuit structure. The LED circuit structure includes: a substrate, a first adhering layer, a second adhering layer and a heat dissipation layer.

On the substrate, a plurality of first cutout regions and a plurality of first material regions apart from the first cutout regions are formed. Further, a plurality of second cutout regions and a plurality of second material regions apart from the second cutout regions are formed on the substrate. The second cutout regions partially overlap with the first cutout regions. The adjacent first material regions are connected in series through the second material regions.

Further, a plurality of third cutout regions and a plurality of third material regions apart from the third cutout regions are formed on the substrate. The third cutout regions partially overlap with the first cutout regions and the second cutout regions, and the adjacent first material regions are connected in parallel through the third material regions.

The first adhering layer is adhered to one side of the substrate and positions the plurality of first material regions. The second material regions and the third material regions are disposed on the first adhering layer. The second adhering layer is disposed on another side, which is opposite to the substrate, of the first adhering layer. The heat dissipation layer is disposed on another side, which is opposite to the first adhering layer, of the second adhering layer. Further, an LED grain is disposed on each first material region.

Accordingly, such the LED circuit does not require conventional electroplating, etching, and washing processes, and further not only the effect of saving energy and reducing carbon emission can be achieved, but also the effect of being flexible, reducing a manufacturing time and reducing manufacturing costs can be achieved.

DETAILED DESCRIPTION

Referring toFIG. 1toFIG. 7,FIG. 1toFIG. 7are a three-dimensional schematic diagram and a first to sixth schematic implementation diagrams of an LED circuit structure according to the present utility model. It can be clearly seen from the figures that the LED circuit structure includes a substrate1, a first adhering layer2, a second adhering layer3and a heat dissipation layer4.

First cutout regions11, second cutout regions13and third cutout regions15are formed on the substrate1. In addition, a plurality of first material regions12, a plurality of second material regions14, and a plurality of third material regions16are further formed on the substrate1at the positions of the first cutout regions11.

The first cutout region11consists of three first linear regions111and a first U-shaped region112. One first linear region111is formed on one side of the first U-shaped region112, and the other two first linear regions111are formed on the other side of the first U-shaped region112. In this embodiment, the one first linear region111is formed at an upper side edge of the first U-shaped region112, and the other two first linear regions111are formed at a lower side edge of the first U-shaped region112. After cutout by the first cutout regions11, remaining regions of the substrate1are the first material regions12.

At least one LED grain17is disposed on the first material region12within the first U-shaped region112and the first material region12between the first linear regions111on one side. Further, the second cutout region13consists of three groups of second linear regions131and a second L-shaped region132. Two second linear regions131are formed on one side of the second L-shaped region132, and the other second linear region131is formed on the other side of the second L-shaped region132.

In this embodiment, the two second linear regions131are formed at an upper side edge of the second L-shaped region132, and the other second linear region131is formed at a lower side edge of the second L-shaped region132. The third cutout region15consists of two third linear regions151and a third L-shaped region152. One third linear region151is formed on one side of the third L-shaped region152, and the other third linear region151is formed on the other side of the third L-shaped region152.

After cutout by the second cutout regions13and the third cutout regions15, remaining regions of the substrate1are the second material regions14and the third material regions16respectively. The second cutout regions13partially overlap with the first cutout regions11. The third cutout regions15partially overlap with the first cutout regions11and the second cutout region13. The adjacent first material regions12are connected in series through the second material regions14, and the adjacent first material regions12are connected in parallel through the third material regions16.

Thereby, such the LED circuit does not require conventional electroplating, etching, and washing processes, and not only the effect of saving energy and reducing carbon emission can be achieved, but also the effect of being flexible, reducing a manufacturing time and reducing manufacturing costs can be achieved.

The substrate1is a flexible substrate1. First cutout is performed on the substrate1by means of laser or stamping, so that a plurality of first cutout regions11and a plurality of first material regions12are formed on the substrate1. The first cutout region11consists of three first linear regions111and a first U-shaped region112. One first linear region111is formed on one side of the first U-shaped region112, and the other two first linear regions111are formed on the other side of the first U-shaped region112. In this embodiment, the one first linear region111is formed at an upper side edge of the first U-shaped region112, and the other two first linear regions111are formed at a lower side edge of the first U-shaped region112.

After cutout by the first cutout regions11, remaining regions of the substrate1are the first material regions12. The first material regions12formed on the substrate1after the first cutout is adhering and positioned by using a first adhering layer2, so that the first material regions12are adhering on the first adhering layer2.

Further, second cutout is performed on the substrate1by means of laser and stamping. The second cutout regions13and the third cutout regions15are formed on the substrate1after the second cutout. The second material regions14are further formed on the substrate1at the positions of the second cutout regions13. The third material regions16are further formed on the substrate1at the positions of the third cutout regions15.

The second cutout region13consists of three second linear regions131and a second L-shaped region132. Two second linear regions131are formed on one side of the second L-shaped region132, and the other second linear region131is formed on the other side of the second L-shaped region132. In this embodiment, the two second linear regions131are formed at an upper side edge of the second L-shaped region132, and the other second linear region131is formed at a lower side edge of the second L-shaped region132.

The third cutout region15consists of two third linear regions151and a third L-shaped region152. One third linear region151is formed on one side of the third L-shaped region152, and the other third linear region151is formed on the other side of the third L-shaped region152.

After cutout by the second cutout regions13and the third cutout regions15, remaining regions of the substrate1are the second material regions14and the third material regions16respectively. The second cutout regions13partially overlap with the first cutout regions11. The third cutout regions15partially overlap with the first cutout regions11and the second cutout region13. The adjacent first material regions12are connected in series through the second material regions14, and the adjacent first material regions12are connected in parallel through the third material regions16.

After the first material regions12, the second material regions14and the third material regions16are formed, at least one LED grain17is disposed on the first material region12within the first U-shaped region112and the first material region12between the first linear regions111on one side. After the first material regions12, the second material regions14and the third material regions16are formed on the substrate1, the second adhering layer3is further adhered to a side, which is opposite to the substrate1, of the first adhering layer2.

After the second adhering layer3is adhered to the first adhering layer2, the heat dissipation layer4is further adhered to a side, which is opposite to the first adhering layer2, of the second adhering layer3. The heat dissipation layer4is made of graphite or grapheme.

Thereby, such the LED circuit does not require conventional electroplating, etching, and washing processes, and further not only the effect of saving energy and reducing carbon emission can be achieved, but also the effect of being flexible, reducing a manufacturing time and reducing manufacturing costs can be achieved.

A plurality of first material regions12, a plurality of second material regions14and a plurality of third material regions16that are arranged in arrays can be formed on the substrate1. Then, each array is cut to form a plurality of substrates1, and each substrate1can be disposed on the heat dissipation layer4. The heat dissipation layer4is then cut, so that the heat dissipation layer4is adhered to one side of each substrate1.

It should be noted that, described above are merely preferred embodiments of the present utility model, which are not intended to limit the present utility model. It should be noted that all changes made according to the idea of the present utility model without departing from the spirit scope of the present utility model, e.g., changes on the structure or arrangement pattern, various variations, modifications and applications, and generated equivalent effects, should all fall within the patent scope of the present utility model.