CN106151961B - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN106151961B CN106151961B CN201510134132.8A CN201510134132A CN106151961B CN 106151961 B CN106151961 B CN 106151961B CN 201510134132 A CN201510134132 A CN 201510134132A CN 106151961 B CN106151961 B CN 106151961B
- Authority
- CN
- China
- Prior art keywords
- light
- plane
- reflector plate
- backboard
- light source
- 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
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of backlight modules, and it includes a backboard, a reflector plate and at least one light sources.Reflector plate is set on backboard, and the periphery of reflector plate is formed with a light guide structure, light guide structure includes a groove on an inclined-plane and adjacent inclined-plane, and groove is at least by being oppositely arranged and there is a first side wall of a spacing and a second sidewall to be defined, and the first side wall connects inclined-plane.Light source is set on reflector plate, and the inclined-plane of light guide structure is for the side to light towards light source and between light source and groove, and the height of second sidewall facing light sources is greater than height of the inclined-plane relative to light source.The present invention can use the effect that groove absorbs the reflected light of reflector plate periphery, make the luminous intensity of reflector plate surrounding that can weaken and bright line is avoided to generate, and then improve light-emitting uniformity and picture taste.
Description
Technical field
The present invention relates to a kind of backlight modules that avoidable periphery bright line generates.
Background technique
Known backlight module, such as a straight-down negative thin-type backlight mould group, be easy in reflector plate surrounding generate bright line and
Poor picture is caused to be sampled.Therefore, as shown in Figure 1, in known to one in the design of backlight module 100, the surrounding of reflector plate 102
Wall surface can print multiple site micro-structures 104, and the light for allowing light source 106 to issue is scattered by site micro-structure 104 to avoid surrounding
The generation of bright line.In other Known designs, it can also crack in the formation of four peripheral wall surfaces of reflector plate 102 or aperture is micro- to replace
Structure 104.However, the mode of printing net-point, which is easy to produce offset, double exposure etc., prints bad problem, cutting or punching are utilized
Mode formed and crack or aperture, be easy that lead to the problem of cutting/punching bad and micro- using site because contraposition processing is not easy
Structure is cracked or aperture is limited come the effect for eliminating bright line.
" background technique " paragraph is used only to help to understand the content of present invention, therefore disclosed by " background technique " paragraph
Content may be comprising some without constituting known technology known to those of ordinary skill in technical field.In " background skill
Content disclosed by art " paragraph does not represent the content or the one or more embodiments of present invention problem to be solved, at this
Known or recognized by those of ordinary skill in technical field before patent application.
Summary of the invention
The present invention provides a kind of avoidable periphery bright line and generates and have the backlight module of good light-emitting uniformity and brightness.
Other objects and advantages of the present invention can from disclosed herein technical characteristic in be further understood.
It is to propose a kind of backlight up to one of above-mentioned or part or all of purpose or other purposes, one embodiment of the invention
Mould group includes a backboard, a reflector plate and at least one light source.Reflector plate is set on backboard, and the periphery of reflector plate is formed
There is a light guide structure, light guide structure includes a groove on an inclined-plane and adjacent inclined-plane, and groove is at least by being oppositely arranged and having one
One the first side wall of spacing and a second sidewall are defined, and the first side wall connects inclined-plane.Light source is set on reflector plate, guide-lighting
The inclined-plane of structure is for the side to light towards light source and between light source and groove, and the height of second sidewall facing light sources is big
In height of the inclined-plane relative to light source.
In an embodiment, the first side wall is identical with respect to the height of backboard as inclined-plane with respect to the height of backboard.
In an embodiment, the extending direction of the first side wall and the extending direction of second sidewall are essentially parallel to each other.
In an embodiment, the one of the height of the first side wall backboard opposite with respect to the height substantially second sidewall of backboard
Half.
In an embodiment, reflector plate is equipped with multiple light sources, and light guide structure is neighbouring in these light sources, these light sources
The some light that at least one light source of light guide structure is issued is guided by inclined-plane to second sidewall, and is reflexed to by second sidewall
In groove.One diffusion sheet may be disposed on these light sources, and at least one light source of neighbouring light guide structure is sent out in these light sources
Some light out can be guided by inclined-plane to diffusion sheet.
In an embodiment, reflector plate has multiple sides, and light guide structure is distributed in each side.
In an embodiment, the inclined-plane of light guide structure can be an arc-shaped inclined-plane, and light source can be light emitting diode.
By the design of above-mentioned each embodiment, because some light that light source issues can be guided via the inclined-plane of light guide structure
Afterwards, then by trenched side-wall it is reflected into groove, therefore the effect of the reflected light using groove absorption reflector plate periphery, makes reflector plate
The luminous intensity of surrounding can weaken and bright line is avoided to generate, and then improve light-emitting uniformity and picture taste.This utilization groove is straight
Connect and capture light in a manner of weakening reflector plate periphery luminous intensity, compare it is known using site micro-structure, crack or the knots such as aperture
Structure eliminates the mode of bright line, hence it is evident that can get preferable bright line eradicating efficacy.On the other hand, the light source institute of neighbouring light guide structure
The some light of sending can be directed to diffusion sheet via the inclined-plane of light guide structure, therefore can increase the light quantity into diffusion sheet and obtain
The effect of overall brightness must be improved.
Other objects and advantages of the present invention can from disclosed herein technical characteristic in be further understood.
For above and other objects, features and advantages of the invention can be clearer and more comprehensible, special embodiment below simultaneously cooperates attached drawing, makees
Detailed description are as follows.
Detailed description of the invention
Fig. 1 is the schematic diagram of backlight module known to one.
Fig. 2 be one embodiment of the invention backlight module schematic top plan view, Fig. 3 be along Fig. 2 A-A ' wire cutting and obtain
Diagrammatic cross-section.
Fig. 4 is the partial enlargement diagram of Fig. 3.
Fig. 5 is the partial schematic diagram of the reflector plate structure of another embodiment of the present invention.
Fig. 6 is the partial schematic diagram of the back board structure of another embodiment of the present invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect refer to the embodiment of attached drawing in following cooperation
Detailed description in, can clearly present.The direction term being previously mentioned in following embodiment, such as: it is upper and lower, left and right, preceding
Or it is rear etc., it is only the direction with reference to attached drawing.Therefore, the direction term used is intended to be illustrative and not intended to limit the present invention.
Fig. 2 be one embodiment of the invention backlight module schematic top plan view, Fig. 3 be along Fig. 2 A-A ' wire cutting and obtain
Diagrammatic cross-section.As shown in Figures 2 and 3, a kind of backlight module 10 includes a backboard 12, a reflector plate 14 and at least one light
Source 16.In this present embodiment, the multiple light sources 16 of for example, light emitting diode can be equipped on reflector plate 14, reflector plate 14 is set to
On backboard 12, and the periphery of reflector plate 14 is formed with a light guide structure 141, and reflector plate 14 can for example have that there are four sides, therefore point
The light guide structure 141 for being distributed in 14 surrounding of reflector plate can be around multiple light sources 16, and the optical diaphragm of a for example, diffusion sheet 22 can
It is set in multiple light sources 16.Light guide structure 141 may include a groove 141b of an inclined-plane 141a and adjacent inclined-plane 141a.Inclined-plane
141a can be between light source 16 and groove 141b, and is the side to light towards light source 16, that is, inclined-plane 141a is far from light source
The height of 16 side is greater than the height of neighbouring 16 side of light source.As shown in figure 4, groove 141b can be at least by being oppositely arranged and having
There are the first side wall P and a second sidewall Q of a spacing to be defined, the first side wall P connection inclined-plane 141a, second sidewall Q can
Against backboard 12, and the height of second sidewall Q facing light sources 16 on a direction D1 is opposite in the direction di greater than inclined-plane 141a
In the height of light source 16.Design through this embodiment, some light I that light source 16 issues can be guided by inclined-plane 141a along inclined-plane
After 141a advances, then entered groove 141b after second sidewall Q reflection, obtains and absorb 14 periphery of reflector plate using groove 141b
The luminous intensity of the effect of reflected light, such 14 surrounding of reflector plate can weaken and bright line is avoided to generate, and then improve light-emitting uniformity
And picture taste.Above-mentioned light I the light source 16 of closest light guide structure 141 can be sent out in multiple light sources 16 as shown in Figure 2
Out, but not limited to this.On the other hand, some light I ' that the light source 16 of neighbouring light guide structure 141 is issued can be via inclined-plane
141a is directed to diffusion sheet 22, therefore can increase the light quantity into diffusion sheet 22 and obtain the effect for improving overall brightness.
Furthermore in this present embodiment, the first side wall P in the direction di can be with inclined-plane 141a in side with respect to the height of backboard 12
Height on D1 with respect to backboard 12 is identical, and the extending direction (direction D2, D3) of the first side wall P can be with the extension of second sidewall Q
(direction D2, D3) is essentially parallel to each other in direction, and the first side wall P is less than second sidewall with respect to the height of backboard 12 in the direction di
Q is in the direction di with respect to the height of backboard 12, such as the first side wall P generally can be second sidewall Q with respect to the height of backboard 12
The half of the height of opposite backboard 12, but not limited to this.Furthermore the inclined degree of inclined-plane 141a only needs that guidance light I can be obtained
Effect, and without being limited thereto, in an embodiment, the tilt angle theta of inclined-plane 141a can be 5-10 degree, wherein tilt angle
θ is, for example, the angle between inclined-plane 141a and backboard 12.The shape of inclined-plane 141a is not limited to a plane, as shown in figure 5, in
Inclined-plane 141a can be an arc-shaped inclined-plane in another embodiment.In addition, as shown in fig. 6, the periphery of backboard 12 can have correspondence anti-
Penetrate the shape of the light guide structure 141 of piece 14, such as backboard 12 can attach the inclined-plane 141a and groove 141b of light guide structure 141 and right
A groove 12b of an inclined-plane 12a and adjacent inclined-plane 12a should be formed.
In conclusion the backlight module of the embodiment of the present invention at least have the advantages that it is following one of: by above-mentioned each
The design of a embodiment, after being guided via the inclined-plane of light guide structure because of some light that light source issues, then it is anti-by trenched side-wall
It injects into groove, therefore the effect of the reflected light using groove absorption reflector plate periphery, subtract the luminous intensity of reflector plate surrounding can
It is weak and bright line is avoided to generate, and then improve light-emitting uniformity and picture taste.It is this to capture light directly using groove to weaken
The mode of reflector plate periphery luminous intensity, compare it is known using site micro-structure, crack or the structures such as aperture eliminate the side of bright line
Formula, hence it is evident that can get preferable bright line eradicating efficacy.On the other hand, some light that the light source of neighbouring light guide structure is issued can
It is directed to diffusion sheet via the inclined-plane of light guide structure, therefore the light quantity into diffusion sheet can be increased and obtain and improve overall brightness
Effect.
The foregoing is only a preferred embodiment of the present invention, cannot be limited the scope of implementation of the present invention with this, it is all according to
Simple equivalence changes made by the claims in the present invention and invention description content and modification, all still belong to what the invention patent covered
Range.In addition any embodiment of the invention or claim be not necessary to reach disclosed herein whole purposes or advantage or spy
Point.In addition, the first, second equal terms referred in this specification or claim are only to name the title of element or distinguish not
With embodiment or range, and not it is used to the quantitative upper limit of restriction element or lower limit.
[symbol description]
10 backlight modules
12 backboards
The inclined-plane 12a
12b groove
14 reflector plates
141 light guide structures
The inclined-plane 141a
141b groove
16 light sources
22 diffusion sheets
100 backlight modules
102 reflector plates
104 site micro-structures
106 light sources
The direction D1, D2, D3
P the first side wall
Q second sidewall
I, I ' light
θ tilt angle.
Claims (10)
1. a kind of backlight module, includes:
One backboard；
One reflector plate is set on the backboard, and the periphery of the reflector plate is formed with a light guide structure, which includes one
One groove on inclined-plane and the adjacent inclined-plane, a first side wall and one second of the groove at least by being oppositely arranged and with a spacing
Side wall is defined, and the first side wall connects the inclined-plane；And
At least one light source is set on the reflector plate, and wherein the inclined-plane is the side to light towards the light source and is located at the light
Between source and the groove, and the second sidewall is greater than height of the inclined-plane relative to the light source with respect to the height of the light source.
2. backlight module as described in claim 1, which is characterized in that height and the inclined-plane of the first side wall with respect to the backboard
The height of the opposite backboard is identical.
3. backlight module as described in claim 1, which is characterized in that the extending direction of the first side wall and the second sidewall
Extending direction is parallel to each other.
4. backlight module as described in claim 1, which is characterized in that the first side wall with respect to the backboard height be this second
Half of the side wall with respect to the height of the backboard.
5. backlight module as described in claim 1, which is characterized in that the reflector plate is equipped with multiple light sources, the light guide structure
The some light that at least one light source of the neighbouring light guide structure is issued in these light sources, these light sources is by the inclined-plane
It guides to the second sidewall, and is reflexed in the groove by the second sidewall.
6. backlight module as claimed in claim 5, which is characterized in that also include:
One diffusion sheet is set on these light sources, wherein adjacent at least one light source institute of the light guide structure in these light sources
The some light of sending is guided by the inclined-plane to the diffusion sheet.
7. backlight module as described in claim 1, which is characterized in that the reflector plate has multiple sides, and the light guide structure
It is distributed in the respectively side.
8. backlight module as described in claim 1, which is characterized in that the inclined-plane is an arc-shaped inclined-plane.
9. backlight module as described in claim 1, which is characterized in that the periphery of the backboard corresponds to the light guide structure and forms one tiltedly
One groove in face and the adjacent inclined-plane.
10. backlight module as described in claim 1, which is characterized in that the light source is light emitting diode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134132.8A CN106151961B (en) | 2015-03-25 | 2015-03-25 | Backlight module |
| TW104119764A TWI596409B (en) | 2015-03-25 | 2015-06-18 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134132.8A CN106151961B (en) | 2015-03-25 | 2015-03-25 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106151961A CN106151961A (en) | 2016-11-23 |
| CN106151961B true CN106151961B (en) | 2018-12-04 |
Family
ID=57339949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134132.8A Expired - Fee Related CN106151961B (en) | 2015-03-25 | 2015-03-25 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106151961B (en) |
| TW (1) | TWI596409B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533981A (en) * | 2017-03-02 | 2018-09-14 | 展晶科技(深圳)有限公司 | Light-emitting component |
| CN109445185B (en) * | 2018-12-21 | 2021-08-13 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN214041938U (en) | 2020-11-04 | 2021-08-24 | 中强光电股份有限公司 | Light source module and display device |
| CN115586672A (en) * | 2022-11-10 | 2023-01-10 | 厦门天马微电子有限公司 | Light-emitting substrate, display panel, backlight module, display device and driving method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286587A (en) * | 2005-04-04 | 2006-10-19 | Quanta Display Inc | Housing for backlight module, and backlight module using the same |
| CN101839419A (en) * | 2009-03-18 | 2010-09-22 | 北京京东方光电科技有限公司 | Direct-light-type backlight module |
| CN202884679U (en) * | 2012-10-08 | 2013-04-17 | 京东方科技集团股份有限公司 | Light-leaking-proof backlight body and liquid crystal display module thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200504423A (en) * | 2003-07-17 | 2005-02-01 | Ind Tech Res Inst | Apparatus for improving uniformity used in backlight module |
| TWI247181B (en) * | 2004-01-16 | 2006-01-11 | Quanta Display Inc | Housing for backlight module |
| CN101165566A (en) * | 2006-10-20 | 2008-04-23 | 鸿富锦精密工业（深圳）有限公司 | Direct type backlight module group |
| TWI347470B (en) * | 2007-09-28 | 2011-08-21 | Au Optronics Corp | Backlight module and the structure to protect the light source module |
-
2015
- 2015-03-25 CN CN201510134132.8A patent/CN106151961B/en not_active Expired - Fee Related
- 2015-06-18 TW TW104119764A patent/TWI596409B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006286587A (en) * | 2005-04-04 | 2006-10-19 | Quanta Display Inc | Housing for backlight module, and backlight module using the same |
| CN101839419A (en) * | 2009-03-18 | 2010-09-22 | 北京京东方光电科技有限公司 | Direct-light-type backlight module |
| CN202884679U (en) * | 2012-10-08 | 2013-04-17 | 京东方科技集团股份有限公司 | Light-leaking-proof backlight body and liquid crystal display module thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201634986A (en) | 2016-10-01 |
| TWI596409B (en) | 2017-08-21 |
| CN106151961A (en) | 2016-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106151961B (en) | Backlight module | |
| US10598847B2 (en) | Light source module and prism sheet thereof | |
| TWI575266B (en) | Light guide plate, light source module and display device | |
| CN101789074B (en) | Light guide module of optical fingerprint identification system | |
| CN206247120U (en) | Light source module | |
| US8974104B2 (en) | Backlight module | |
| US9121981B2 (en) | Light unit | |
| US10121938B2 (en) | Light source module | |
| US10274663B2 (en) | Light guide plate, backlight module and display device | |
| KR20210009312A (en) | Light guide plate, backlight module and display device | |
| CN104748013A (en) | Backlight module and display device | |
| JP3205466U (en) | Light guide plate and backlight module using the same | |
| TWM486782U (en) | Reflecting unit and backlight module | |
| KR101188451B1 (en) | Light guide plate and manufacturing method thereof | |
| US20060133113A1 (en) | Backlight module | |
| JP2006332638A (en) | Light emitting diode apparatus | |
| TWI489056B (en) | Light source module | |
| US20170023827A1 (en) | Reflective element, backlight module and display device having the same | |
| US20160209571A1 (en) | Backlight module and display device | |
| TWI772923B (en) | Light reflecting structure, backlight module and display device | |
| TWI405102B (en) | Backlight module and optical touch panel | |
| US11009647B2 (en) | Backlight source device, light guide plate and display device | |
| KR101898211B1 (en) | Backlight unit and liquid crystal display device including the same | |
| KR101225605B1 (en) | Back-light unit | |
| CN102901008A (en) | Light-guide-plate-free edge-type LED (light-emitting diode) plane light source device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20181204 Termination date: 20210325 |