CN206931620U

CN206931620U - One side CSP light sources

Info

Publication number: CN206931620U
Application number: CN201720669319.2U
Authority: CN
Inventors: 周波; 何至年; 唐其勇; 朱弼章
Original assignee: Shenzhen Chi Chi Energy Saving Lighting Ltd By Share Ltd
Current assignee: Jiangxi zhaochi Guangyuan Technology Co.,Ltd.
Priority date: 2017-06-09
Filing date: 2017-06-09
Publication date: 2018-01-26
Anticipated expiration: 2027-06-09

Abstract

The utility model one side CSP light sources, including upper and lower double-layer structure, superstructure is fluorescent adhesive layer, understructure includes luminescence chip and white adhesive layer, the luminescence chip is placed in the centre of understructure, the white adhesive layer is wrapped in luminescence chip surrounding, and the fluorescent adhesive layer is placed in the top of the luminescence chip and white adhesive layer.Due to foring reflective structure with the white glue with high reflectance, beneficial to optically focused, luminous flux loss is reduced, improves the overall brightness of light source, and increase central light strength；The white adhesive layer has stronger tensile break strength, and elasticity is good, after surrounding luminescence chip, plays cushioning effect in use, when light source falls or collided, luminescence chip will not be damaged；Cylindrical one side CSP main light-emitting surface is circle, and all directions amount of light is identical, reduces the design difficulty of optical lens, after being matched with lens, can make TV backlight modules that preferable optical effect be presented, make module optics excessively uniform.

Description

One side CSP light sources

【Technical field】

Lighting field is the utility model is related to, more particularly, to a kind of one side CSP light sources.

【Background technology】

Existing common five face lights CSP light-source structures as shown in Figure 1, Figure 2, Figure 3 shows, and it is by the luminescence chip positioned at middle part 120 and be in outside and from above with surrounding surround luminescence chip fluorescent colloid 110 form；Wherein, luminescence chip is electrode Flip-chip positioned at chip bottom, wire bonding process can be saved, directly be welded on light source on substrate by solder；Fluorescent glue Mixed by transparent silica gel, fluorescent material and auxiliary additive.

Existing common five face light CSP light sources the characteristics of be that lighting area is very big, not only can from surrounding and above Five faces are lighted, and some light is also sent from the peripheral colloid of bottom-emission chip, and due to this feature, common five face lights CSP light sources are by preferable optical uniformity；In addition, the CSP light sources of this five face light extraction are because simple in construction, material composition species is few, So that this light source can save a large amount of materials and processing procedure and technique are relatively easy.

But existing five face lights, the structure of CSP light sources also brings new ask while with larger rising angle Topic：Because five faces are all luminous, cause light source center luminance shortage, can not be applied in the high field of center brightness demand； The fluorescent glue of luminescence chip bottom periphery, after the blue light sent by luminescence chip excites, caused light can be sent from bottom, this The light of part would generally cause the overall luminous flux of light source to reduce, the utilization rate of light because of the repeatedly rapid decay such as refraction, reflection It is not high；It is square above common five faces CSP light sources, causes TV backlight module hot spots uneven, and the lens matched with light source are set It is larger to count difficulty.

Therefore it provides a kind of center brightness is high, overall luminous flux is high, light utilization efficiency is high, suitable for the luminous of backlight module Uniform CSP light sources are actually necessary.

【The content of the invention】

The purpose of this utility model is to provide the one side that a kind of center brightness is high, overall luminous flux is high, light utilization efficiency is high CSP light sources.

To realize the utility model purpose, there is provided following technical scheme：

The utility model provides a kind of one side CSP light sources, and it includes upper and lower double-layer structure, and superstructure is fluorescent adhesive layer, Understructure includes luminescence chip and white adhesive layer, and the luminescence chip is placed in the centre of understructure, and the white adhesive layer is wrapped in luminous Chip surrounding, the fluorescent adhesive layer are placed in the top of the luminescence chip and white adhesive layer.

Preferably, one side CSP light sources are integrally in cylinder.

Preferably, the thickness of the white adhesive layer is concordant with luminescence chip.

Preferably, the luminescence chip is directly be bonded with fluorescent adhesive layer.

Prior art is contrasted, the utility model has advantages below：

Due to foring reflective structure with the white glue with high reflectance, beneficial to optically focused, luminous flux loss is reduced, is improved The overall brightness of light source, and increase central light strength；The white adhesive layer has stronger tensile break strength, and elasticity is good, bag After luminescence chip, cushioning effect is played in use, and when light source falls or collided, luminescence chip will not be damaged； Cylindrical one side CSP main light-emitting surface is circle, and all directions amount of light is identical, reduces the design difficulty of optical lens, with After lens matching, it can make TV backlight modules that preferable optical effect be presented, make module optics excessively uniform.

【Brief description of the drawings】

Fig. 1 is the sectional view of prior art CSP light sources；

Fig. 2 is the top view of prior art CSP light sources；

Fig. 3 is the upward view of prior art CSP light sources；

Fig. 4 is the sectional view of the utility model one side CSP light sources；

Fig. 5 is the top view of the utility model one side CSP light sources；

Fig. 6 is the upward view of the utility model one side CSP light sources；

Fig. 7 is the stereogram of the utility model one side CSP light sources；

Fig. 8 is the exploded view of the utility model one side CSP light sources.

【Embodiment】

Fig. 4~8 are referred to, the embodiment of the utility model one side CSP light sources, it includes upper and lower double-layer structure, upper strata knot Structure is fluorescent adhesive layer 210, and understructure includes double-layer structure inside and outside luminescence chip 220 and white adhesive layer 230, and the luminescence chip is placed in The centre of understructure, the white adhesive layer are wrapped in luminescence chip surrounding, and the fluorescent adhesive layer is placed in the luminescence chip and white adhesive layer Top, bottom are the electrodes 240 of luminescence chip.

One side CSP light sources are integrally in cylinder.

Specifically, the thickness of the white adhesive layer 230 is concordant with luminescence chip 220.The luminescence chip 220 and fluorescent adhesive layer 210 Directly it is bonded.

Fig. 8 is please referred to, there is the cavity for accommodating luminescence chip the centre of the cylindrical white adhesive layer of one side CSP light sources 221, luminescence chip 220 is placed in the cavity, and white adhesive layer 230 wraps up luminescence chip surrounding, and fluorescent adhesive layer 210 is placed in luminescence chip With white adhesive layer top.

The manufacture of the utility model one side CSP light sources, is specifically included,

(1) flipped light emitting chip 220 is arranged in a matrix on support plate；

(2) mould with cylindrical mold cavities is placed on support plate, flipped light emitting chip is located at the interposition of mould Put；

(3) white glue is sprayed between flipped light emitting chip and the gap of mould and is solidified, so as to form the white adhesive layer 230；

(4) remaining space and the solidification of mould are filled with fluorescent glue, so as to form fluorescent adhesive layer 210；

(5) mould and light source are departed from, forms single cylindrical one side CSP light sources；

Preferred embodiment of the present utility model is the foregoing is only, the scope of protection of the utility model is not limited thereto, Any equivalent transformation based in technical solutions of the utility model is belonged within scope of protection of the utility model.

Claims

1. a kind of one side CSP light sources, it is characterised in that it includes upper and lower double-layer structure, and superstructure is fluorescent adhesive layer, and lower floor ties Structure includes luminescence chip and white adhesive layer, and the luminescence chip is placed in the centre of understructure, and the white adhesive layer is wrapped in luminescence chip four Week, the fluorescent adhesive layer are placed in the top of the luminescence chip and white adhesive layer.

2. one side CSP light sources as claimed in claim 1, it is characterised in that one side CSP light sources are integrally in cylinder.

3. one side CSP light sources as claimed in claim 2, it is characterised in that the thickness of the white adhesive layer is concordant with luminescence chip.

4. one side CSP light sources as claimed in claim 3, it is characterised in that the luminescence chip is directly be bonded with fluorescent adhesive layer.