CN207518946U

CN207518946U - Decanter type LED flexible circuit board

Info

Publication number: CN207518946U
Application number: CN201721566577.4U
Authority: CN
Inventors: 王友平
Original assignee: FANTASY ELECTRONIC Co Ltd
Current assignee: FANTASY ELECTRONIC Co Ltd
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2018-06-19
Anticipated expiration: 2027-11-21

Abstract

The utility model discloses a kind of decanter type LED flexible circuit board, including substrate made of glass fiber material, the substrate surface is provided with conducting wire, and multiple placing grooves are offered on the substrate, the conducting wire is all extended in the placing groove, and contact point is formed in placing groove；It is both provided with LED chip in each placing groove, the pad on the LED chip is connected with the contact point in placing groove, and multiple LED chips are connected by conducting wire.By the way that multiple placing grooves are opened on substrate, and the LED chip in it by conducting wire is connected, improves the luminous measurement of decanter type LED flexible circuit board；Simultaneously because LED chip is placed in placing groove, the integral thickness of LED flexible circuit board is reduced, while decreases the usage amount of baseplate material, reduces cost.

Description

Decanter type LED flexible circuit board

Technical field

The utility model is related to electronics field more particularly to a kind of decanter type LED flexible circuit board.

Background technology

Flexible circuit board be using printed circuit board made of flexible insulation base material, it is high, light-weight with Distribution density The features such as, it can require arbitrary arrangement with free bend, winding, folding according to space layout, electronic product can be substantially reduced Volume.However the integral thickness of the flexible circuit board after assembling can be increased after LED light is mounted in flexible circuit board, and by group After flexible circuit board after dress is mounted in electronic product, electronic product thickness can not be reduced well.

Utility model content

To overcome disadvantages mentioned above, the purpose of this utility model is to provide a kind of flexible circuit board that can be reduced after assembling The decanter type LED flexible circuit board of integral thickness.

In order to reach object above, the technical solution adopted in the utility model is：A kind of decanter type LED flexible circuit board, Including substrate made of glass fiber material, the substrate surface is provided with conducting wire, and multiple put is offered on the substrate Slot is put, the conducting wire is all extended in the placing groove, and contact point is formed in placing groove；It is all provided in each placing groove It is equipped with LED chip, the pad on the LED chip is connected with the contact point in placing groove, and multiple LED chips pass through conduction Circuit is connected.Flip-chip or positive cartridge chip may be used in the LED chip, and preferred inversion chip reduces gold thread wiring technique.

LED chip in it is passed through conducting wire by the utility model by the way that multiple placing grooves are opened on substrate It is connected, improves the luminous measurement of decanter type LED flexible circuit board；Simultaneously because LED chip is placed in placing groove, reduce The integral thickness of LED flexible circuit board, while the usage amount of baseplate material is decreased, reduce cost.

Preferably, it is provided with packaging plastic in the gap between the LED chip and the placing groove.Added by packaging plastic The fastness of strong LED chip installation, and the pad of LED chip and surrounding conducting wire can be protected.

Preferably, the substrate surface is provided with the Protection glue for covering the conducting wire and placing groove.Pass through Protection glue Protective substrate on the whole and its inner part are covered on substrate, it is prevented to be scraped off and influences normal operation.

Preferably, the cylinder structure of the placing groove, the LED chip are centrally positioned in placing groove.Pass through cylinder The placing groove of shape is installed convenient for LED chip, while the light that LED chip transmitting generates can be penetrated uniformly to the notch of placing groove Go out, help to ensure that brightness is not in apparent deviation outside notch (brightness deviation is small, and naked eyes cannot be distinguished).

Preferably, the shortest distance between the madial wall of the edge of the LED chip and the placing groove is N, wherein： 0.1mm≤N≤2mm.By the pore size for limiting LED chip and placing groove so that the substrate in unit area can be placed More multi-part improves the integrated level of decanter type LED flexible circuit board.

Preferably, the thickness of the substrate is 0.15mm, and the depth of the placing groove is 0.1mm, the thickness of the LED chip It spends for 0.1mm, the thickness of the Protection glue is 0.05mm.It is limited by above-mentioned size by the thickness of decanter type LED flexible circuit board Degree is controlled in 0.2mm, reduces decanter type LED flexible circuit board the space occupied to greatest extent, thick conducive to electronic product is reduced Degree.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model embodiment；

Fig. 2 is the schematic cross-sectional view of single led chip placement region in the utility model embodiment.

In figure：

1- substrates；2-LED chips；3- packaging plastics；4- Protection glues；5- placing grooves；6- conducting wires.

Specific embodiment

The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings, so that the advantages of the utility model It can be easier to be readily appreciated by one skilled in the art with feature, it is apparent clear and definite so as to be made to the scope of protection of the utility model Define.

Embodiment

Referring to shown in attached drawing 1, Fig. 2, a kind of decanter type LED flexible circuit board in the present embodiment, including glass fibre material Substrate 1 made of material, 1 surface of substrate are provided with conducting wire 6, and multiple placing grooves 5 are offered on the substrate 1, described Conducting wire 6 is all extended in the placing groove 5, and contact point is formed in placing groove 5；It is both provided in each placing groove 5 LED chip 2, the pad on the LED chip 2 are connected with the contact point in placing groove 5, and multiple LED chips 2 pass through conduction Circuit 6 is connected.Flip-chip or positive cartridge chip may be used in the LED chip 2, and preferred inversion chip reduces gold thread wiring work Skill.

In the present embodiment, in order to improve the fastness of the installation of LED chip 2, between the LED chip 2 and the placing groove 5 Gap in be provided with packaging plastic 3, and then protect the pad of LED chip 2 and surrounding conducting wire 6.While in order to protect The components such as the conducting wire of 3 periphery of packaging plastic, preventing the damage of its periphery circuit influences its normal operation, the setting of 1 surface of substrate There are covering conducting wire 6 and the Protection glue 4 of placing groove 5.

The cylinder structure of placing groove 5 described in the present embodiment, the LED chip 2 are centrally positioned in placing groove 5.Its In：The shortest distance between the madial wall of the edge of LED chip 2 and the placing groove 5 is N, wherein：0.1mm≤N≤2mm.This N uses 0.2mm in embodiment.It is installed by columned placing groove convenient for LED chip, while the light that LED chip transmitting generates Line can be projected uniformly to the notch of placing groove, and limit the pore size of LED chip and placing groove so that in unit area Substrate can place more multi-part, improve the integrated level of decanter type LED flexible circuit board.

Specifically, the thickness of the substrate 1 is 0.15mm, and the depth of the placing groove 5 is 0.1mm, the LED chip 2 thickness is 0.1mm, and the thickness of the Protection glue 4 is 0.05mm.It is limited by above-mentioned size by decanter type LED flexible circuitries The thickness control of plate reduces decanter type LED flexible circuit board the space occupied in 0.2mm to greatest extent, conducive to electronics is reduced Product thickness.

Packaging plastic 3 is filled between LED chip 2 and placing groove 5 in gap, needs to be covered in LED after packaging plastic 3 is melted On the pin of chip 2, during this packaging plastic 3 is cured, cavity is susceptible at above-mentioned pin, it is to encapsulate to trace it to its cause There is bubble in glue melting process and do not discharge to cause.For cavity scene, the lower face of LED chip 2 at pin in the present embodiment It is arranged to dentalation, can not be discharged there is bubble in 3 melting process of packaging plastic when it is pushed, so as to solve at pin Packaging plastic cavity problem.

Multiple LED chips in the present embodiment can carry out discoloration processing according to actual needs, specifically can be in corresponding LED core Piece light-emitting area is coated with fluorescent powder or is pasted with fluorescent film, sent out for changing LED chip it is original photochromic so that LED flexible circuit board can be simultaneously emitted by the light beam of different colours, and form colorful pattern.Above-mentioned discoloration can be used LED chip shines as blue, then in its surface spraying red fluorescence powder or can attach red fluorescence film, and LED chip is made to shine change Into red.

Embodiment of above is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with this skill The people of art understands the content of the utility model and is implemented, and can not limit the scope of protection of the utility model with this, all According to the equivalent change or modification that the spirit of the present invention is substantially done, should all cover within the protection scope of the present utility model.

Claims

1. a kind of decanter type LED flexible circuit board, including substrate made of glass fiber material, the substrate surface, which is provided with, leads Electric line, it is characterised in that：Multiple placing grooves are offered on the substrate, the conducting wire all extends to the placing groove It is interior, and contact point is formed in placing groove；It is both provided with LED chip in each placing groove, the pad on the LED chip is with putting The contact point put in slot is connected, and multiple LED chips are connected by conducting wire.

2. decanter type LED flexible circuit board according to claim 1, it is characterised in that：The LED chip and the placement Packaging plastic is provided in gap between slot.

3. decanter type LED flexible circuit board according to claim 1, it is characterised in that：The substrate surface, which is provided with, to be covered Cover the conducting wire and the Protection glue of placing groove.

4. decanter type LED flexible circuit board according to claim 1, it is characterised in that：The cylinder knot of placing groove Structure, the LED chip are centrally positioned in placing groove.

5. decanter type LED flexible circuit board according to claim 4, it is characterised in that：The edge of the LED chip and institute It is N to state the shortest distance between the madial wall of placing groove, wherein：0.1mm≤N≤2mm.

6. decanter type LED flexible circuit board according to claim 1, it is characterised in that：The LED chip is is inverted chip Or positive cartridge chip.