CN206193412U - LED lamp strip and edge -in backlight module - Google Patents
LED lamp strip and edge -in backlight module Download PDFInfo
- Publication number
- CN206193412U CN206193412U CN201621270100.7U CN201621270100U CN206193412U CN 206193412 U CN206193412 U CN 206193412U CN 201621270100 U CN201621270100 U CN 201621270100U CN 206193412 U CN206193412 U CN 206193412U
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- China
- Prior art keywords
- light
- led
- led chip
- emitting area
- pcb board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004020 luminiscence type Methods 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 229910002114 biscuit porcelain Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 phosphor rare-earth Chemical class 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a LED lamp strip and edge -in backlight module. A LED lamp strip, includes the PCB board and sets up the one or more LED chip on the PCB board, and the bottom surface of LED chip is provided with the electrode, and the top surface and the side of LED chip all are provided with light conversion layer, and a side of LED chip is the light emitting area, all is provided with the white reflective film barricade to the side of the top surface of LED chip and other, the LED chip is the inclined plane with a side that the light emitting area is relative. The utility model discloses a LED lamp strip and edge -in backlight module under the condition that does not reduce the light efficiency, changes the luminescence properties for the light emitting area narrows down, prevents the phenomenon of the income light edge leakage light of light guide plate, has improved the display effect, has saved the heat dissipation aluminum strip simultaneously, has saved the cost, has reduced the thickness of going into the light side, makes the thickness of module and width littleer.
Description
Technical field
The utility model is related to technical field of LED illumination, more particularly to a kind of LED light bar and side entrance back module.
Background technology
Side entering-type LED backlight TV is the LED-backlit TV of current main flow.Side entrance back module of the prior art,
As shown in figure 1, its LED light bar passes through labeling on pcb board, pcb board is then fixed on radiating by heat-conducting glue or screw
Aluminum strip top, so the width of whole side is LED thickness, PCB thickness, aluminum strip thickness and back plate thickness sum, causes side to enter
The frame of formula LED-backlit TV is wider, it is impossible to reach ultra-thin and ultra-narrow.Ultra-thin and ultra-narrow television set is designed if desired, then
Need the width and thickness of LED light source part smaller.
The full name of CSP is Chip Scale Package, and Chinese means wafer-level package, chip size packages.CSP
LED is approached due to package dimension and luminescence chip size, eliminates support etc., so LED overall size is smaller.But it is existing
CSP LED when being directly applied in side entrance back module, the luminous Lambertian source in the faces of CSP five, then ultra-thin light guide board of arranging in pairs or groups
When, lighting angle causes greatly incident side leakage problem easily occur, as shown in Fig. 2 simultaneously because CSP optical density is larger, therefore
Spacing between every LEDs of arrangement is larger, dark space occurs in part of the incident side easily between two lamps, so as to produce bright
Distribution between dark phase, has had a strong impact on backlight display effect.
Utility model content
First purpose of the present utility model is to provide a kind of LED light bar, and it changes in the case where light efficiency is not reduced
The characteristics of luminescence so that light-emitting area narrows, prevents the phenomenon of the incident side light leak of light guide plate, display effect is improve, while saving
Radiating aluminum strip, saves cost, reduces the thickness of incident side so that the thickness and width of module is smaller.
Second purpose of the present utility model is to provide a kind of side entrance back module, and it is not reducing the situation of light efficiency
Under, change the characteristics of luminescence so that light-emitting area narrows, and prevents the phenomenon of the incident side light leak of light guide plate, improves display effect, together
When eliminate radiating aluminum strip, save cost, reduce the thickness of incident side so that the thickness and width of module is smaller.
It is that, up to first purpose, the utility model uses following technical scheme：
A kind of LED light bar, including pcb board and one or more LED chips for being arranged on pcb board, the bottom of LED chip
Face is provided with electrode, and the top surface of LED chip and side are provided with light conversion layer, and the one side of LED chip is light-emitting area, LED
The top surface of chip and other sides are provided with white reflective barricade, and the one side relative with light-emitting area of LED chip is inclined-plane.
Wherein, the width of light-emitting area is equal to the thickness of LED chip.
Wherein, electrode is provided with the current channel of several sawtooth patterns.The setting of current channel, can increase electrode with
The contact area of LED chip so that electric current can be divided to some of LED chip when through electrode, is passed through with improving
The problem of the CURRENT DISTRIBUTION density unevenness of LED chip, reduce because LED lengthen caused by local current densities it is excessive cause go out
Lamp phenomenon, while increasing area of dissipation, improves the reliability of LED；In addition the length of LED can be increased, LED arrangements are reduced
Between spacing, so as to reduce the problem between the bright dark phase of incident side.
Wherein, LED chip is blue light or UV chip.LED chip can excite light conversion layer to produce corresponding coloured light.
Wherein, light conversion layer is yellow, red or green phosphor rare-earth fluorescent bisque.
Wherein, light conversion layer is quanta point material layer.
Wherein, white reflective barricade is TiO2 barricades.White reflective barricade has reflectivity higher.
Wherein, LED chip is fixed on pcb board by soldering.
It is that, up to second purpose, the utility model uses following technical scheme：
A kind of side entrance back module, including backboard, are provided with light guide plate above backboard, the incident side of light guide plate is set
There is above-mentioned LED light bar.
Wherein, the incident side of light guide plate is oppositely arranged with light-emitting area, and pcb board is arranged on backboard, light guide plate and backboard it
Between be provided with reflector plate, blooming piece is provided with above light guide plate, the week side of boss of backboard is provided with center.
The beneficial effects of the utility model：The one side of LED chip is light-emitting area, and top surface and other sides are provided with white
Color reflects barricade, and the one side relative with light-emitting area is inclined-plane, and internal light can be reflected towards light-emitting area by inclined-plane, luminous to be lifted
The luminous light efficiency in face, can change its characteristics of luminescence so that light-emitting area narrows, the list of LED chip in the case where light efficiency is not reduced
Side enters light and enters fashionable by the incident side of light guide plate, due to the narrowed width of incident side, can prevent the incident side light leak of light guide plate
Phenomenon, improve display effect；Relative to existing side entrance back module, radiating aluminum strip is eliminated, save cost, together
When reduce the thickness of incident side so that the thickness and width of module is smaller.
Brief description of the drawings
Fig. 1 is the structural representation of the side entrance back module of prior art.
Fig. 2 is the luminous schematic diagram of the LED light bar of prior art.
Fig. 3 is the structural representation of LED chip of the present utility model.
Fig. 4 is the structural representation of electrode of the present utility model.
Fig. 5 is the structural representation of side entrance back module of the present utility model.
Fig. 6 is the luminous schematic diagram of LED light bar of the present utility model.
Reference is as follows：
1-PCB plates；2-LED chips；21- electrodes；22- light conversion layers；23- light-emitting areas；24- white reflective barricades；25- is oblique
Face；
10- backboards；20- light guide plates；30- reflector plates；40- blooming pieces；50- centers.
Specific embodiment
The technical solution of the utility model is further illustrated with reference to Fig. 3 to Fig. 6 and by specific embodiment.
As shown in figure 3, LED light bar includes pcb board 1 and one or more LED chips 2 being arranged on pcb board 1, it is excellent
Selection of land, multiple LED chips 2 are fixed on pcb board 1 side by side by soldering, and pcb board 1 is aluminium base.The bottom surface of LED chip 2 is set
There is electrode 21, the top surface of LED chip 2 and side are provided with light conversion layer 22, and the one side of LED chip 2 is light-emitting area 23, excellent
Selection of land, the width of light-emitting area 23 is equal to the thickness of LED chip 2.The top surface of LED chip 2 and other sides are provided with white anti-
Barricade 24 is penetrated, the one side relative with light-emitting area 23 of LED chip 2 is inclined-plane 25.
In the present embodiment, as shown in figure 4, electrode 21 is provided with the current channel of several sawtooth patterns.Current channel sets
Put, the contact area of electrode 21 and LED chip 2 can be increased so that electric current can be divided to LED chip when through electrode 21
2 some, to improve the problem by the CURRENT DISTRIBUTION density unevenness of LED chip 2, reduces office caused by being lengthened because of LED
The phenomenon of turning off the light that portion's current density is excessive and causes, while increasing area of dissipation, improves the reliability of LED；In addition can be with
Increase the length of LED, reduce the spacing between LED arrangements, so that the problem between the bright dark phase of incident side is reduced, as shown in Figure 6.
In the present embodiment, LED chip 2 is blue light, and light conversion layer 22 is quanta point material layer.LED chip 2 can be with exciting light
Conversion layer 22 produces corresponding coloured light.In other embodiments, LED chip 2 can also select UV chip, light conversion layer 22
Yellow, red or green phosphor rare-earth fluorescent bisque can also be selected.In the present embodiment, white reflective barricade 24 keeps off for TiO2
Wall.White reflective barricade 24 has reflectivity higher.
As shown in figure 5, side entrance back module includes backboard 10, the top of backboard 10 is provided with light guide plate 20, light guide plate
20 incident side is provided with above-mentioned LED light bar, and incident side and the light-emitting area 23 of light guide plate 20 are oppositely arranged, and pcb board 1 is arranged at
On backboard 10.
In the present embodiment, reflector plate 30 is provided between light guide plate 20 and backboard 10, the top of light guide plate 20 is provided with light
Diaphragm 40 is learned, the week side of boss of backboard 10 is provided with center 50, and light guide plate 20 is PMMA.In other embodiments, light guide plate 20 also may be used
Think MS, PC or glass.
Above content is only preferred embodiment of the present utility model, for one of ordinary skill in the art, according to this reality
With new thought, will change in specific embodiments and applications, this specification content should not be construed as
To limitation of the present utility model.
Claims (10)
1. a kind of LED light bar, including pcb board (1) and one or more LED chips (2) being arranged on the pcb board (1),
Characterized in that, the bottom surface of the LED chip (2) is provided with electrode (21), the top surface of the LED chip (2) and side are all provided with
Be equipped with light conversion layer (22), the one side of the LED chip (2) is light-emitting area (23), the top surface of the LED chip (2) and its
His side is provided with white reflective barricade (24), and the one side relative with the light-emitting area (23) of the LED chip (2) is
Inclined-plane (25).
2. LED light bar according to claim 1, it is characterised in that the width of the light-emitting area (23) is equal to the LED core
The thickness of piece (2).
3. LED light bar according to claim 1, it is characterised in that the electrode (21) is provided with several sawtooth patterns
Current channel.
4. LED light bar according to claim 1, it is characterised in that the LED chip (2) is blue light or UV chip.
5. LED light bar according to claim 1, it is characterised in that the light conversion layer (22) is yellow, red or green
Inorganic rare earth phosphor powder layer.
6. LED light bar according to claim 1, it is characterised in that the light conversion layer (22) is quanta point material layer.
7. LED light bar according to claim 1, it is characterised in that the white reflective barricade (24) is TiO2Barricade.
8. LED light bar according to claim 1, it is characterised in that the LED chip (2) is fixed on described by soldering
On pcb board (1).
9. a kind of side entrance back module, including backboard (10), it is characterised in that be provided with leaded light above the backboard (10)
Plate (20), the incident side of the light guide plate (20) is set just like the LED light bar described in any one of claim 1 to 8.
10. side entrance back module according to claim 9, it is characterised in that the incident side of the light guide plate (20) with
The light-emitting area (23) is oppositely arranged, and the pcb board (1) is arranged on the backboard (10), the light guide plate (20) with it is described
Reflector plate (30) is provided between backboard (10), blooming piece (40), the backboard are provided with above the light guide plate (20)
(10) the week side of boss is provided with center (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270100.7U CN206193412U (en) | 2016-11-23 | 2016-11-23 | LED lamp strip and edge -in backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621270100.7U CN206193412U (en) | 2016-11-23 | 2016-11-23 | LED lamp strip and edge -in backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193412U true CN206193412U (en) | 2017-05-24 |
Family
ID=58723940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621270100.7U Expired - Fee Related CN206193412U (en) | 2016-11-23 | 2016-11-23 | LED lamp strip and edge -in backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196514A (en) * | 2019-06-19 | 2019-09-03 | 武汉华星光电技术有限公司 | A kind of backlight module and its display device |
| CN110690243A (en) * | 2019-10-15 | 2020-01-14 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof |
| US10928581B2 (en) | 2019-06-19 | 2021-02-23 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
-
2016
- 2016-11-23 CN CN201621270100.7U patent/CN206193412U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110196514A (en) * | 2019-06-19 | 2019-09-03 | 武汉华星光电技术有限公司 | A kind of backlight module and its display device |
| US10928581B2 (en) | 2019-06-19 | 2021-02-23 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| CN110690243A (en) * | 2019-10-15 | 2020-01-14 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof |
| CN110690243B (en) * | 2019-10-15 | 2022-06-17 | 京东方科技集团股份有限公司 | Display panel and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 |