CN105570830A - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN105570830A CN105570830A CN201410548722.0A CN201410548722A CN105570830A CN 105570830 A CN105570830 A CN 105570830A CN 201410548722 A CN201410548722 A CN 201410548722A CN 105570830 A CN105570830 A CN 105570830A
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- CN
- China
- Prior art keywords
- backlight module
- diffusion structure
- backboard
- light source
- light
- 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.)
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Abstract
The invention discloses a backlight module. The backlight module comprises a backboard, at least one light source and a net-shaped diffusion structure. The backboard comprises a bottom plate and a plurality of side walls connected to the bottom plate, and a containing space is defined by the side walls and the bottom plate. The net-shaped diffusion structure is arranged above the containing space and comprises a plurality of transparent cables, the transparent cables are interwoven to form a plurality of grids, and the net-shaped diffusion structure has different cable distribution densities in different zones. By means of the backlight module, the material using amount can be reduced, the requirement for the thin backlight module is met, and the manufacture procedure can be simplified.
Description
Technical field
The present invention relates to a kind of backlight module.
Background technology
Fig. 1 is the partial cutaway schematic of a known backlit module.As shown in Figure 1, backlight module 100 has a backboard 102 and the light source 104 be limited in backboard 102 and diffuser plate 106, and at least one blooming piece 108 is arranged on diffuser plate 106.Diffuser plate 106 because of known backlight module 100 is the certain thickness board-like entity structure of tool, therefore cannot meet the more lightening demand of current backlight module requirement.
TaiWan, China patent discloses No. TW201024809A and discloses a kind of diffuser plate, comprises exiting surface, incidence surface, many main line shape protuberances and many wire protuberances.Incidence surface and exiting surface are oppositely disposed, and used in combination by main line shape protuberance and secondary wire protuberance, light diffusivity can be improved.No. TWI410713rd, TaiWan, China patent announcement discloses a kind of liquid crystal display, comprises backlight module and display floater.Backlight module has reflecting plate, light source, brightening diffusion film, phase retardation film and Polarizer.Brightening diffusion film comprises cholesteric liquid epitaxial and transmissive optical layer, and transmissive optical layer comprises light transmission particle and light-transmissive resin material, and light-transmissive resin material comprises the cross-linking products of macromolecule cross-linked network product or thermmohardening type resin.
Summary of the invention
The invention provides the backlight module of the lightening characteristic of a kind of tool.
Other object of the present invention and advantage can be further understood from the technical characteristic disclosed by the present invention.
For reaching one of above-mentioned or partly or entirely object or other object, one embodiment of the invention provide a kind of backlight module to comprise a backboard, at least one light source and a netted diffusion structure.Backboard comprises a base plate and multiple sidewall, and sidewall is connected to base plate and surrounds an accommodation space with base plate, and light source is arranged in accommodation space.Netted diffusion structure to be arranged at above accommodation space and to comprise many transparent screen wires, and transparent screen wire interweaves and forms multiple grid, and netted diffusion structure has different netting twine distribution densities in zones of different.
In one embodiment, netted diffusion structure is fixed on the sidewall of backboard, and a reflector plate can be arranged in accommodation space and between light source and backboard.
In one embodiment, the netting twine distribution density of netted diffusion structure can be increased from surrounding toward center, and the grid being positioned at zones of different can have different spacing.Wherein mesh spacing can be reduced from surrounding toward center.
In one embodiment, the material of transparent screen wire can be plastics, and light source can be light-emitting diode light bar.
By the design of above-described embodiment, use the netted diffusion structure that netting twine is woven into, materials'use amount can be reduced meet the lightening demand of backlight module and can processing procedure be simplified, and can set different netting twine distribution densities or mesh spacing in zones of different because of netted diffusion structure, therefore the local being easy to adjust netted diffusion structure is expanded luminous energy power and can further improve light-emitting uniformity.
Other object of the present invention and advantage can be further understood from the technical characteristic disclosed by the present invention.For above and other objects of the present invention, feature and advantage can be become apparent, special embodiment below also coordinates accompanying drawing, is described in detail below.
Accompanying drawing explanation
Fig. 1 is the partial cutaway schematic of a known backlit module.
Fig. 2 is the partial cutaway schematic of the backlight module of one embodiment of the invention.
Fig. 3 is the schematic diagram of the netted diffusion structure of one embodiment of the invention.
Fig. 4 is the schematic diagram of the netted diffusion structure of another embodiment of the present invention.
Detailed description of the invention
Aforementioned and other technology contents, feature and effect for the present invention, in the detailed description of the embodiment of following cooperation accompanying drawing, can clearly present.The direction term mentioned in following examples 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 and is not used for limiting the present invention.
Fig. 2 is the partial cutaway schematic of the backlight module of one embodiment of the invention.As shown in Figure 2, a kind of backlight module 10 comprises a backboard 12, at least one light source 14 and a netted diffusion structure 16.Backboard 12 comprises a base plate 12a and multiple sidewall 12b (a sidewall 12b is only shown in Fig. 2), and multiple sidewall 12b is connected to base plate 12a and surrounds an accommodation space P with base plate 12a.Light source 14 is arranged in accommodation space P, and netted diffusion structure 16 is arranged at the top of accommodation space P.Light source 14 such as can be light-emitting diode light bar.At least one blooming piece 22 (such as blast sheet) can be arranged on netted diffusion structure 16, and a reflector plate 18 can be arranged in accommodation space P and to improve light utilization ratio between light source 14 and backboard 12.The light of the upwards outgoing that light source 14 sends is by netted diffusion structure 16 and blooming piece 22.As shown in Figure 3, netted diffusion structure 16 can comprise many transparent screen wires 161, and transparent screen wire 161 interweaves and forms multiple grid 162, utilizes the deviation effect of each bar netting twine 161 pairs of incident lights can make the overall effect obtaining light diffusion.In the present embodiment, by adjusting mesh spacing or the netting twine density of the zones of different of netted diffusion structure 16, can the light of diverse location be compensated and be balanced, thus realize uniform light diffusion effect, for example, as shown in Figure 3, if when center is stronger compared with the incident light quantity of surrounding, the netting twine distribution density of netted diffusion structure 16 can be increased from surrounding toward center or mesh spacing can be reduced from surrounding toward center, to obtain uniform light diffusion effect.Certainly, netting twine distribution mode does not limit, and can carry out the adjustment of density change according to distribution of light sources.In another embodiment, if the light energy be distributed as near four corner positions of multiple light source 14 is stronger, as shown in Figure 4, the dotted line corral region of four corner location of netted diffusion structure 16a can increase netting twine distribution density or reduce mesh spacing, by the effect such as total reflection, refraction of transparent screen wire 161 pairs of light, change the propagation path of light, thus reduce the amount of light in the dotted line corral region in Fig. 4, realize the effect of picture uniform in light emission.
In one embodiment, netted diffusion structure 16 such as can be fixed on the sidewall 12b of backboard 12, and the material of netted diffusion structure 16 (transparent screen wire 161) such as can be plastics but do not limit.
In sum, embodiments of the invention at least have one of them advantage following, by the design of above-described embodiment, use the netted diffusion structure that netting twine is woven into, materials'use amount can be reduced meet the lightening demand of backlight module and can processing procedure be simplified, and can set different netting twine distribution densities or mesh spacing in zones of different because of netted diffusion structure, therefore the local being easy to adjust netted diffusion structure is expanded luminous energy power and can further improve light-emitting uniformity.
The foregoing is only the preferred embodiments of the present invention, can not limit scope of the invention process with this, all simple equivalences done according to claims of the present invention and description change and amendment, all still belong to the scope that patent of the present invention covers.In addition, any embodiment of the present invention or claim must not realize whole object disclosed by the present invention or advantage or feature.In addition, summary and denomination of invention are only used to the use of auxiliary patent document retrieval, are not used for limiting interest field of the present invention.
Symbol description
10 backlight modules
12 backboards
12a base plate
12b sidewall
14 light sources
16, the netted diffusion structure of 16a
161 netting twines
162 grids
18 reflector plates
22 blooming pieces
100 backlight modules
102 backboards
104 light sources
106 diffuser plates
108 blooming pieces
P accommodation space.
Claims (8)
1. a backlight module, comprises a backboard, at least one light source and a netted diffusion structure, wherein
Described backboard comprises a base plate and multiple sidewall, and these sidewalls described are connected to described base plate and surround an accommodation space with described base plate,
Described at least one light source is arranged in described accommodation space,
Described netted diffusion structure is arranged at above described accommodation space, and described netted diffusion structure comprises many transparent screen wires, and these transparent screen wires described interweave and form multiple grid, and described netted diffusion structure has different netting twine distribution densities in zones of different.
2. backlight module as claimed in claim 1, it is characterized in that, described netted diffusion structure is fixed on these sidewalls described of described backboard.
3. backlight module as claimed in claim 1, it is characterized in that, the netting twine distribution density of described netted diffusion structure is increased from surrounding toward center.
4. backlight module as claimed in claim 1, it is characterized in that, these grids described being positioned at zones of different have different spacing.
5. backlight module as claimed in claim 4, it is characterized in that, these mesh spacings described are reduced from surrounding toward center.
6. backlight module as claimed in claim 1, it is characterized in that, the material of these transparent screen wires described is plastics.
7. backlight module as claimed in claim 1, is characterized in that, also comprise:
One reflector plate, to be arranged in described accommodation space and between described light source and described backboard.
8. backlight module as claimed in claim 1, it is characterized in that, described light source is light-emitting diode light bar.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548722.0A CN105570830A (en) | 2014-10-16 | 2014-10-16 | Backlight module |
| TW104101475A TWI556038B (en) | 2014-10-16 | 2015-01-16 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548722.0A CN105570830A (en) | 2014-10-16 | 2014-10-16 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105570830A true CN105570830A (en) | 2016-05-11 |
Family
ID=55881265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410548722.0A Pending CN105570830A (en) | 2014-10-16 | 2014-10-16 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105570830A (en) |
| TW (1) | TWI556038B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932430Y (en) * | 2006-02-17 | 2007-08-08 | 保视界光电有限公司 | Backlight module |
| CN101090059A (en) * | 2006-06-12 | 2007-12-19 | 三星康宁株式会社 | Flat electrode, ultra thin surface light source device and backlight unit having the same |
| CN101344610A (en) * | 2007-07-12 | 2009-01-14 | 鸿富锦精密工业（深圳）有限公司 | Back light module and optical plate |
| CN103486494A (en) * | 2012-06-14 | 2014-01-01 | 冠捷投资有限公司 | Backlight module |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4073435B2 (en) * | 2002-10-22 | 2008-04-09 | シャープ株式会社 | Backlight unit and liquid crystal display device using the backlight unit |
| JP2005117023A (en) * | 2003-09-19 | 2005-04-28 | Sony Corp | Backlight apparatus and liquid crystal display device |
| TW200832010A (en) * | 2007-01-31 | 2008-08-01 | Chi Mei Optoelectronics Corp | Back light module and manufacturing method thereof and display device using the same |
| CN101684921A (en) * | 2008-09-24 | 2010-03-31 | 京东方科技集团股份有限公司 | Light mixing film for mixing light from light emitting diode backlight source and light emitting diode backlight source |
| CN202708984U (en) * | 2012-07-23 | 2013-01-30 | 冠捷显示科技（厦门）有限公司 | Diffusion plate of dot-matrix type diffusion structures and backlight module using same |
-
2014
- 2014-10-16 CN CN201410548722.0A patent/CN105570830A/en active Pending
-
2015
- 2015-01-16 TW TW104101475A patent/TWI556038B/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2932430Y (en) * | 2006-02-17 | 2007-08-08 | 保视界光电有限公司 | Backlight module |
| CN101090059A (en) * | 2006-06-12 | 2007-12-19 | 三星康宁株式会社 | Flat electrode, ultra thin surface light source device and backlight unit having the same |
| CN101344610A (en) * | 2007-07-12 | 2009-01-14 | 鸿富锦精密工业（深圳）有限公司 | Back light module and optical plate |
| CN103486494A (en) * | 2012-06-14 | 2014-01-01 | 冠捷投资有限公司 | Backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI556038B (en) | 2016-11-01 |
| TW201616193A (en) | 2016-05-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |