CN106151961A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN106151961A CN106151961A CN201510134132.8A CN201510134132A CN106151961A CN 106151961 A CN106151961 A CN 106151961A CN 201510134132 A CN201510134132 A CN 201510134132A CN 106151961 A CN106151961 A CN 106151961A
- Authority
- CN
- China
- Prior art keywords
- light
- plane
- light source
- reflector plate
- backlight module
- 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.)
- Granted
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Abstract
The invention discloses a kind of backlight module, it comprises a backboard, a reflector plate and at least one light source.Reflector plate is arranged on backboard, and the periphery of reflector plate is formed with a light guide structure, light guide structure comprises a groove on an inclined-plane and adjacent inclined-plane, and groove is at least by being oppositely arranged and have a first side wall of a spacing and one second sidewall is defined, and the first side wall connects inclined-plane.Light source is arranged on reflector plate, and the inclined-plane of light guide structure is towards a side to light of light source and between light source and groove, and the height of the second sidewall facing light sources is more than the inclined-plane height relative to light source.The present invention can utilize groove to absorb the effect reflecting light of reflector plate periphery, makes the light intensity of reflector plate surrounding can weaken and avoid bright line to produce, and then improves light-emitting uniformity and picture taste.
Description
Technical field
The present invention relates to a kind of backlight module avoiding periphery bright line to produce.
Background technology
Known backlight module, such as one straight-down negative thin-type backlight module, easily the surrounding in reflector plate produces bright line and causes poor picture to be sampled.Therefore, as it is shown in figure 1, in the design of a known backlight module 100, four peripheral wall surfaces of reflector plate 102 can print multiple sites micro structure 104, the light allowing light source 106 send is scattered to avoid the generation of surrounding bright line by site micro structure 104.In other Known designs, it is possible to the four peripheral wall surfaces formation in reflector plate 102 are cracked or perforate is to replace micro structure 104.But, the mode of printing net-point easily produces the problem that skew, double exposure etc. printing is bad, the mode utilizing cutting or punching is formed cracks or perforate, easily produce, because para-position processing is difficult to, the problem that cutting/punching is bad, and utilize site micro structure, crack or perforate is limited to the effect eliminating bright line.
" background technology " paragraph is used only to help to understand present invention, therefore may comprise some in the content disclosed by " background technology " paragraph and not constitute in art the known technology known to those of ordinary skill.In the content disclosed by " background technology " paragraph, do not represent this content or the one or more embodiment of present invention problem to be solved, known by those of ordinary skill in art before the present patent application or cognitive.
Summary of the invention
The present invention provides a kind of and avoids periphery bright line to produce and have the backlight module of good light-emitting uniformity and brightness.
Other objects of the present invention and advantage can be further understood from the technical characteristic that disclosed herein.
For reaching one of above-mentioned or partly or entirely purpose or other purposes, one embodiment of the invention proposes a kind of backlight module and comprises a backboard, a reflector plate and at least one light source.Reflector plate is arranged on backboard, and the periphery of reflector plate is formed with a light guide structure, light guide structure comprises a groove on an inclined-plane and adjacent inclined-plane, and groove is at least by being oppositely arranged and have a first side wall of a spacing and one second sidewall is defined, and the first side wall connects inclined-plane.Light source is arranged on reflector plate, and the inclined-plane of light guide structure is towards a side to light of light source and between light source and groove, and the height of the second sidewall facing light sources is more than the inclined-plane height relative to light source.
In an embodiment, the first side wall is identical relative to the height of backboard with inclined-plane relative to the height of backboard.
In an embodiment, the bearing of trend of the first side wall and the bearing of trend of the second sidewall are essentially parallel to each other.
In an embodiment, the first side wall relative to height substantially second sidewall of backboard relative to the half of the height of backboard.
In an embodiment, reflector plate is provided with multiple light source, and light guide structure is guided to the second sidewall by inclined-plane around these light sources, the some light that in these light sources, at least one light source of neighbouring light guide structure is sent, and reflexed in groove by the second sidewall.One diffusion sheet may be disposed on these light sources, and the some light that in these light sources, at least one light source of neighbouring light guide structure is sent can be guided to diffusion sheet by inclined-plane.
In an embodiment, reflector plate has multiple side, and light guide structure is distributed in each side.
In an embodiment, the inclined-plane of light guide structure can be a circular arc inclined-plane, and light source can be light emitting diode.
Design by each embodiment above-mentioned, after the some light sent because of light source can guide via the inclined-plane of light guide structure, it is reflected into groove again by trenched side-wall, the effect of the reflection light of reflector plate periphery is absorbed hence with groove, the light intensity making reflector plate surrounding can weaken and avoid bright line to produce, and then improves light-emitting uniformity and picture taste.This one utilizes groove directly to catch light to weaken in the way of reflector plate periphery light intensity, compares and known utilizes site micro structure, cracks or the structure such as perforate is to eliminate the mode of bright line, hence it is evident that can obtain preferably bright line eradicating efficacy.On the other hand, the some light that the light source of neighbouring light guide structure is sent can be directed to diffusion sheet via the inclined-plane of light guide structure, therefore can increase and enter the light quantity of diffusion sheet and obtain the effect of raising overall brightness.
Other objects of the present invention and advantage can be further understood from the technical characteristic that disclosed herein.For the above and other objects, features and advantages of the present invention can be become apparent, special embodiment below also coordinates accompanying drawing, is described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a known backlight module.
Fig. 2 is the schematic top plan view of the backlight module of one embodiment of the invention, and Fig. 3 is along generalized section obtained by A-A ' the line cutting of Fig. 2.
Fig. 4 is the close-up schematic view 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.
Detailed description of the invention
For the present invention aforementioned and other technology contents, feature and effect, coordinate with reference in the detailed description of the embodiment of accompanying drawing following, can clearly present.The direction term being previously mentioned in following example, such as: upper and lower, left and right, front or rear etc., is only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate not for limiting the present invention.
Fig. 2 is the schematic top plan view of the backlight module of one embodiment of the invention, and Fig. 3 is along generalized section obtained by A-A ' the line cutting of Fig. 2.As shown in Figures 2 and 3, a kind of backlight module 10 comprises backboard 12, reflector plate 14 and at least one light source 16.In the present embodiment, multiple light sources 16 of for example, light emitting diode can be provided with on reflector plate 14, reflector plate 14 is arranged on backboard 12, and the periphery of reflector plate 14 is formed with a light guide structure 141, reflector plate 14 such as can have four sides, therefore the light guide structure 141 being distributed in reflector plate 14 surrounding can be around multiple light sources 16, and the blooming piece of for example, one diffusion sheet 22 may be disposed on multiple light source 16.Light guide structure 141 can comprise a groove 141b of an inclined-plane 141a and adjacent inclined-plane 141a.Inclined-plane 141a can be located between light source 16 and groove 141b, and is the side to light towards light source 16, that is inclined-plane 141a away from the height of the side of light source 16 more than the height of neighbouring light source 16 side.As shown in Figure 4, groove 141b can at least be defined by being oppositely arranged and have a first side wall P and one second sidewall Q of a spacing, the first side wall P connects inclined-plane 141a, second sidewall Q can against backboard 12, and the second sidewall Q on a direction D1 height of facing light sources 16 more than inclined-plane 141a in the direction di relative to the height of light source 16.By the design of the present embodiment, the some light I that light source 16 sends can be guided by inclined-plane 141a after advancing along inclined-plane 141a, groove 141b is entered again after the second sidewall Q reflection, obtain the effect reflecting light utilizing groove 141b to absorb reflector plate 14 periphery, so light intensity of reflector plate 14 surrounding can weaken and avoid bright line to produce, and then improves light-emitting uniformity and picture taste.Above-mentioned light I can be sent by the light source 16 of closest light guide structure 141 in multiple light sources 16 as shown in Figure 2, but is not limited to this.On the other hand, the some light I ' that the light source 16 of neighbouring light guide structure 141 is sent can be directed to diffusion sheet 22 via inclined-plane 141a, therefore can increase and enter the light quantity of diffusion sheet 22 and obtain the effect of raising overall brightness.
Furthermore, in the present embodiment, the first side wall P in the direction di can be identical relative to the height of backboard 12 in the direction di with inclined-plane 141a relative to the height of backboard 12, the bearing of trend (direction D2, D3) of the first side wall P can be essentially parallel to each other with the bearing of trend (direction D2, D3) of the second sidewall Q, and the first side wall P is less than the second sidewall Q in the direction di relative to the height of backboard 12 relative to the height of backboard 12 in the direction di, such as the first side wall P can be generally the second sidewall Q half relative to the height of backboard 12 relative to the height of backboard 12, but is not limited to this.Furthermore, the inclined degree of inclined-plane 141a only needs to obtain the effect guiding light I, and is not limited to this, and in an embodiment, the tilt angle theta of inclined-plane 141a can be 5-10 degree, wherein tilt angle theta for example, angle between inclined-plane 141a and backboard 12.The profile of inclined-plane 141a is not limited to a plane, as it is shown in figure 5, inclined-plane 141a can be a circular arc inclined-plane in another embodiment.It addition, as shown in Figure 6, the periphery of backboard 12 can have the profile of the light guide structure 141 of corresponding reflector plate 14, such as backboard 12 and can attach the inclined-plane 141a and groove 141b of light guide structure 141 and be correspondingly formed a groove 12b of an inclined-plane 12a and adjacent inclined-plane 12a.
In sum, the backlight module of embodiments of the invention at least has one of them advantage following: by the design of each embodiment above-mentioned, after the some light sent because of light source can guide via the inclined-plane of light guide structure, it is reflected into groove again by trenched side-wall, the effect of the reflection light of reflector plate periphery is absorbed hence with groove, the light intensity making reflector plate surrounding can weaken and avoid bright line to produce, and then improves light-emitting uniformity and picture taste.This utilize groove directly to catch light to weaken in the way of reflector plate periphery light intensity, compare and known utilize site micro structure, crack or the structure such as perforate is to eliminate the mode of bright line, hence it is evident that preferably bright line eradicating efficacy can be obtained.On the other hand, the some light that the light source of neighbouring light guide structure is sent can be directed to diffusion sheet via the inclined-plane of light guide structure, therefore can increase and enter the light quantity of diffusion sheet and obtain the effect of raising overall brightness.
The foregoing is only the preferred embodiments of the present invention, it is impossible to limit the scope that the present invention implements, all simple equivalence changes made according to the claims in the present invention and invention description content and amendment with this, the most still belong to the scope that patent of the present invention contains.Additionally any embodiment or the claim of the present invention is not necessary to reach the whole purposes that disclosed herein or advantage or feature.Additionally, the term such as mention in this specification or claim first, second is only in order to the different embodiment of title or difference naming element or scope, and not it is used for limiting the upper limit in number of elements or lower limit.
[symbol description]
10 backlight modules
12 backboards
12a inclined-plane
12b groove
14 reflector plates
141 light guide structures
141a inclined-plane
141b groove
16 light sources
22 diffusion sheets
100 backlight modules
102 reflector plates
104 site micro structures
106 light sources
D1, D2, D3 direction
P the first side wall
Q the second sidewall
I, I ' light
θ angle of inclination.
Claims (10)
1. a backlight module, comprises:
One backboard；
One reflector plate, is arranged on this backboard, and the periphery of this reflector plate is formed with a light guide structure,
This light guide structure comprises an inclined-plane and a groove on this inclined-plane adjacent, this groove at least by being oppositely arranged and
One the first side wall and one second sidewall with a spacing are defined, and this first side wall connects this inclined-plane；
And
At least one light source, is arranged on this reflector plate, and wherein this inclined-plane is to meet towards the one of this light source
Bright finish and between this light source and this groove, and this second sidewall relative to the height of this light source more than should
Inclined-plane is relative to the height of this light source.
2. backlight module as claimed in claim 1, it is characterised in that this first side wall is relative to this back of the body
The height of plate is identical relative to the height of this backboard with this inclined-plane.
3. backlight module as claimed in claim 1, it is characterised in that the extension side of this first side wall
It is essentially parallel to each other to the bearing of trend with this second sidewall.
4. backlight module as claimed in claim 1, it is characterised in that this first side wall is relative to this back of the body
The height of plate substantially this second sidewall is relative to the half of the height of this backboard.
5. backlight module as claimed in claim 1, it is characterised in that this reflector plate is provided with multiple
Light source, this light guide structure around these light sources, in these light sources this light guide structure neighbouring this at least one
The some light that individual light source is sent is guided to this second sidewall and anti-by this second sidewall by this inclined-plane
It is incident upon in this groove.
6. backlight module as claimed in claim 5, it is characterised in that also comprise:
One diffusion sheet, is arranged on these light sources, wherein being somebody's turn to do adjacent to this light guide structure in these light sources
The some light that at least one light source is sent is guided to this diffusion sheet by this inclined-plane.
7. backlight module as claimed in claim 1, it is characterised in that this reflector plate has multiple side
Limit, and this light guide structure is distributed in respectively this side.
8. backlight module as claimed in claim 1, it is characterised in that this inclined-plane is that a circular arc is oblique
Face.
9. backlight module as claimed in claim 1, it is characterised in that the periphery of this backboard is to should
Light guide structure forms an inclined-plane and a groove on this inclined-plane adjacent.
10. backlight module as claimed in claim 1, it is characterised in that this 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 true CN106151961A (en) | 2016-11-23 |
| CN106151961B 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) |
Cited By (3)
| 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 |
| CN109445185A (en) * | 2018-12-21 | 2019-03-08 | 厦门天马微电子有限公司 | Backlight 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214041938U (en) | 2020-11-04 | 2021-08-24 | 中强光电股份有限公司 | Light source module and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013131A1 (en) * | 2003-07-17 | 2005-01-20 | Industrial Technology Research Institute | Apparatus for improving uniformity used in a backlight module |
| 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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050013131A1 (en) * | 2003-07-17 | 2005-01-20 | Industrial Technology Research Institute | Apparatus for improving uniformity used in a backlight module |
| 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 |
Cited By (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 |
| CN109445185A (en) * | 2018-12-21 | 2019-03-08 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN109445185B (en) * | 2018-12-21 | 2021-08-13 | 厦门天马微电子有限公司 | Backlight 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106151961B (en) | 2018-12-04 |
| TW201634986A (en) | 2016-10-01 |
| TWI596409B (en) | 2017-08-21 |
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| 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 |