CN211907435U

CN211907435U - Full-color non-spot lamp band structure

Info

Publication number: CN211907435U
Application number: CN202020586613.9U
Authority: CN
Inventors: 彭胜钦; 钟云; 林永新
Original assignee: Shenzhen Xinshang Technology Co ltd
Current assignee: Shenzhen Xinshang Technology Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-10
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a full-color non-light spot lamp belt structure, which comprises a lamp belt substrate and an inverted LED chip, wherein the inverted LED chip with three colors of RGB is arranged on the lamp belt substrate, and a bonding pad, a resistor and a copper-clad circuit are also arranged on the lamp belt substrate; the flip LED chip adopts a blue light, red light and green light flip chip or adopts a structure that the blue light flip chip and red fluorescent powder are used for exciting red light; and milky dam glue is arranged on two sides of the flip LED chip. The utility model discloses can adjust luminous effect as required, the appearance is pleasing to the eye, long service life.

Description

Full-color non-spot lamp band structure

Technical Field

The utility model relates to a LED technical field, concretely relates to full-color no light spot band structure.

Background

The LED strip is a product in which LEDs are mounted on a strip-shaped FPC (flexible printed circuit) or PCB (printed circuit board), and is named as a strip because the product is shaped like a strip. Because of long service life, energy conservation and environmental protection, the method gradually exposes the corner in various decoration industries. The existing LED lamp strip has the following defects:

1. the manufacturing process is complex, the traditional full-color LED paster lamp bead needs to fix an LED wafer in a corresponding area in a bowl cup of an LED bracket through crystal fixing glue (conductive glue and non-conductive glue selected according to actual conditions), then an electrode of the LED wafer is connected with a corresponding pin of the LED bracket through a metal wire (gold wire, silver wire, alloy wire and the like), then a layer of protective glue is covered in the LED bracket to protect the LED wafer and the metal wire, then the finished LED paster lamp bead is fixed in a corresponding position of a lamp strip substrate through tin paste or other conductive materials, and then other components such as a resistor and the like are fixed according to actual conditions;

2. the conventional LED lamp strip is complex in manufacturing process, generally needs to be divided into two different manufacturing processes, such as an LED surface mount device lamp bead packaging process and a lamp strip finished product assembling process, and is high in manual manufacturing cost;

3. the volume of the LED surface-mounted lamp beads is far larger than that of the LED wafer, and a certain distance is needed, so that the LED surface-mounted lamp beads cannot be densely distributed on the lamp strip substrate;

4. the distance between the LED surface-mounted lamp beads is large, the light-emitting angle of the LED surface-mounted lamp beads is only about 120 degrees, and the emitted light cannot realize continuous and uninterrupted effect

5. The blue light wafer, the red light wafer, the green light wafer, the white light wafer and the like can be used in the conventional full-color LED lamp bead, and under the condition of the same size, the prices of other color wafers are far higher than those of the blue light wafer

6. Blue light wafer in the conventional LED paster lamp pearl can obtain different luminous colours through the fluorescent glue that covers different component concentration, but because generally can set up many wafers in the full-color paster lamp pearl of RGB, every wafer all needs corresponding luminous colour, and the luminous wafer that obtains corresponding colour through the fluorescent glue needs the determining deviation, and the phenomenon of mixing of colors can take place otherwise, and paster lamp pearl bowl inner space is less, so can't realize adjusting the luminous colour of every wafer alone through the fluorescent glue.

To sum up, the utility model designs a full-color no light spot band structure.

Disclosure of Invention

The utility model aims to provide a full-color no light spot band structure, can adjust luminous effect as required, the appearance is pleasing to the eye, long service life to exist on the prior art.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a full-color non-light spot lamp belt structure comprises a lamp belt substrate and an inverted LED chip, wherein three paths of inverted LED chip structures are arranged on the lamp belt substrate, and a bonding pad, a resistor and a copper-clad circuit are also arranged on the lamp belt substrate; and dam rubber is arranged on two sides of the flip LED chip.

Preferably, the three-way flip LED chip structure can respectively emit blue light, green light and red light.

Preferably, the blue light and the green light adopt flip LED chips, and the red light adopts a small-size patch lamp bead packaged by a red light flip LED chip or a CSP red light flip LED chip or a forward red light LED chip or a structure that the blue light flip chip and red fluorescent powder are used for exciting the red light.

Preferably, the light emitting area of the flip-chip LED chip is further coated with a protective adhesive added with a light diffusion agent.

The utility model discloses replace LED paster lamp pearl with flip-chip LED chip. Adopt the LED chip of flip-chip structure, can avoid the problem of transparent conducting layer extinction and electrode pad shading on the P electrode, can also upwards guide the light that comes down through the reflector layer that sets up low ohmic contact on few GaN surface, can reduce forward voltage and improve chip luminance simultaneously like this. Under the condition of the same luminous flux, the luminous efficiency of the flip chip is about 16 to 25 percent higher than that of the forward chip;

the utility model discloses following beneficial effect has:

1. the manufacturing process is simplified, and the cost is reduced. The conventional LED lamp strip is complex in manufacturing process, generally needs to be divided into two different manufacturing processes, such as an LED surface mount device lamp bead packaging process and a lamp strip finished product assembling process, and is high in manual manufacturing cost;

2. it can emit light without spots. The flip LED chip has small distance and compact arrangement, and the LED surface mounted lamp beads have large volume and need a certain distance, for example, the minimum distance between the surface mounted lamp beads is 3mm, and the distance between the flip LED can be 1.5mm or even smaller, so that the flip LED can be free of light spots but cannot be mounted;

3. the chip cost is low. The conventional full-color LED lamp beads usually use red light wafers, green light wafers, white light wafers and the like, the price is far higher than that of the blue light wafers under the same quantity, the scheme of reversely mounting the blue light wafers and exciting red light by red fluorescent powder is mainly adopted, and the manufacturing cost is far lower than that of reversely mounting the red light wafers;

4. the color mixing effect is good. The two sides of the light emitting area are surrounded by lightproof dam adhesive, the light emitting area is concentrated, the three colors are mixed with each other, and the white light is in a positive color after mixing;

5. the light-emitting region is coated with the protective adhesive added with the diffusant, so that components such as chips and the like can be effectively protected, the service life is greatly prolonged, and the appearance is attractive;

6. the full-color lamp belt without the light spots can be flexibly adjusted according to actual needs, such as adding white light or adjusting the sequence of three-color light.

Drawings

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments;

fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a side schematic view of another configuration of the present invention;

FIG. 4 is a schematic view of the reflected light of the present invention;

fig. 5 is a schematic plan view of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 to 5, the following technical solutions are adopted in the present embodiment: a full-color non-light spot lamp belt structure comprises a lamp belt substrate 1 and flip LED chips 2, wherein three paths of flip LED chip 2 structures are arranged on the lamp belt substrate 1, and a bonding pad 3, a resistor 4 and a copper-clad circuit are also arranged on the lamp belt substrate 1; and dam rubber 5 is arranged on two sides of the flip LED chip 2.

It is worth noting that the three-way flip-chip LED chip 2 structure can respectively emit blue light, green light and red light.

It is worth noting that the blue light and the green light adopt flip LED chips, and the red light adopts a small-size patch lamp bead packaged by a red light flip LED chip or a CSP red light flip LED chip or a forward red light LED chip or a structure that the blue light flip chip and the red fluorescent powder 7 excite red light.

In addition, the light emitting area of the flip LED chip 2 is coated with a protective adhesive 6 added with a light diffusion agent.

The three RGB colors (not limited to three colors, for example, white light can be added) of the present embodiment can be blue, red, and green flip chips (white chips), as shown in fig. 3 below. However, since red flip chips are rare and high in cost in the market, a scheme of exciting red light by using a blue flip chip and red fluorescent powder can be adopted, and red light with corresponding wavelength can be obtained by adjusting the concentration of the red fluorescent powder, as shown in fig. 2.

Different from the traditional RGB full-color patch lamp strip, the invention has the advantages that the walls (dam glue or other thick glue with low light transmittance) with certain transmittance are arranged on the two sides of the light emitting region 8, light can be more concentrated when red, green and blue light lights emit in single color, and the light can be reflected by the two sides when emitting, so that the white light mixed by the three light colors has better effect, and the appearance is beautiful, as shown in fig. 4.

In the present embodiment, the transparent adhesive added with the diffusing agent is coated on the light emitting region, so as to play a role in protection on one hand and make the color mixing effect of the three colors of light more perfect on the other hand, as shown in fig. 5. Full-color lamp area can be according to the in-service use demand, can obtain different luminous effects through the concentration of adjusting different diffusants.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A full-color non-light spot lamp band structure is characterized by comprising a lamp band substrate (1) and an inverted LED chip (2), wherein the lamp band substrate (1) is provided with a three-way inverted LED chip (2) structure, and the lamp band substrate (1) is also provided with a bonding pad (3), a resistor (4) and a copper-clad circuit; and dam rubber (5) is arranged on two sides of the flip LED chip (2).

2. A full-color non-speckle light band structure according to claim 1, wherein the three-way flip-chip LED chip (2) structure is capable of emitting blue, green and red light, respectively.

3. The full-color non-spot lamp band structure according to claim 2, wherein the blue light and the green light adopt flip LED chips, and the red light adopts a small-sized patch lamp bead packaged by a red light flip LED chip or a CSP red light flip LED chip or a forward-mounted red light LED chip or a structure that the blue light flip chip and red phosphor powder are used for exciting the red light.

4. A full-color non-mottle ribbon structure as defined in claim 1, 2 or 3, characterized in that the light-emitting area of said flip-chip LED chip (2) is further coated with a protective adhesive (6) added with light diffusing agent.