CN207268791U - A kind of backlight module - Google Patents
A kind of backlight module Download PDFInfo
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- CN207268791U CN207268791U CN201721148799.4U CN201721148799U CN207268791U CN 207268791 U CN207268791 U CN 207268791U CN 201721148799 U CN201721148799 U CN 201721148799U CN 207268791 U CN207268791 U CN 207268791U
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- site
- light guide
- light
- backlight module
- guide plate
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Abstract
The utility model discloses a kind of backlight module, including the light guide plate and reflector plate being stacked from top to bottom, the light guide plate include light in part and light guide section, and the lower face of the light in part and light guide section has multiple sites, and the site includes：First site, is formed in the lower face of light guide section, and first site is hit a technique using machinery and formed；Second site, is formed in the lower face of light guide section, and second site is formed using laser processing technology, and the first site is avoided in second site；3rd site, is formed in the lower face of light in part, and the density of the 3rd site is less than the density of the first site and the density of the second site.The backlight module of the utility model can reduce process and expense, efficient, good reliability while light guide plate luminance is improved.
Description
Technical field
The utility model belongs to back light source technique field, relates more specifically to a kind of backlight module.
Background technology
With the development in electronics industry epoch, the application of backlight is more and more extensive, and usually backlight need to be by a light at present
Source or line source are changed into area source through light guide plate and reflecting plate, wherein light guide plate have it is ultra-thin it is guide-lighting uniformly, energy-saving and environmental protection,
The advantages that durable.With the development of technology, the requirement to light guide plate luminance is also higher and higher, and light guide plate generally comprises guide-lighting plate
With multiple sites, guide-lighting plate has incidence surface, light-emitting surface and the bottom surface opposite with the light-emitting surface, has on bottom surface and be used to destroy
Multiple sites of light total reflection, the light into light guide plate are oriented to light-emitting surface by the site on bottom surface, are projected from light-emitting surface.
Site generally use diamond striker impact die surface forms groove at present, and laser ablation mould forms groove,
Or the mode such as printing silk-screen, with the raising of technology and product requirement, mainly hit a little using machinery at present and laser spots is mainstreams.
The lattice point structure uniformity that machinery is hit a little is good, and surface is smooth, and backlight illumination is high, and aberration is small, costly, and striker consumption costs is high,
Hit a machine price；Projective structure can be formed around the site of laser spots ablation, when injection has an impact plastic cement mobility, easily
Cause jaundice, aberration is slightly larger, but expense is low.At present site make made using a kind of single mode, machinery hit a little or
Laser spots.Such as there is dark space between lamp and both sides corner, it is necessary to when changing site, and die surface is polished, then again in mould
Site is made on tool, fabrication cycle is longer, and expense is of a relatively high.
Utility model content
In order to solve the deficiencies in the prior art, the utility model provides a kind of high brightness and uniform, cost reduction
Backlight module.
The utility model technique effect to be reached is realized by following scheme：A kind of backlight module, including from upper past
Under the light guide plate and reflector plate that are stacked, the light guide plate includes light in part and light guide section, the light in part and light guide section
Lower face has multiple sites, and the site includes：
First site, is formed in the lower face of light guide section, and first site is hit a technique using machinery and formed；
Second site, is formed in the lower face of light guide section, and second site is formed using laser processing technology, and described
Avoid the first site in the second site；
3rd site, is formed in the lower face of light in part, the density of the 3rd site be less than the first site density and
The density of second site.
Preferably, the 3rd site hits a technique using machinery and forms or laser machine formation.
Preferably, a diameter of 0.02-0.05mm of first site, adjacent first site spacing are 0.005-0.4mm.
Preferably, a diameter of 0.01-0.04mm of second site, adjacent second site spacing are 0.01-0.6mm.
Preferably, a diameter of 0.005-0.035mm of the 3rd site, adjacent 3rd site spacing are 2-5mm.
Preferably, the backlight module further includes the optical film group for being located at light guide plate upper surface, and the optical film group is at least
Including the diffusion barrier, lower bright enhancement film and upper bright enhancement film being sequentially laminated on light guide plate upper surface.
Preferably, the backlight module further includes to accommodate the glue frame of light guide plate and reflector plate, and the luminescence component glues
Patch is arranged between glue frame and light guide plate.
Preferably, the backlight module further includes the anti-dazzling screen being arranged on optical film group and luminescence component.
The utility model has the following advantages：
By the way that the site of light guide plate is included the first site, the second site and the 3rd site, first site use is hit
Point technique is formed, and second site is formed when forming dark space for the first site using laser technology, is improving light guide plate luminance
While need not remake and mould and hit a little, but can be subtracted with laser machining directly on the existing mould with site
Few process and expense, it is efficient；3rd site is arranged on luminescence component one end and is light density site, can effectively prevent
Only the absorption of the lower face of smooth reflector plate and light guide section produces the integrity problems such as film wrinkle.
Brief description of the drawings
Fig. 1 is the partial sectional view of backlight module in the utility model；
Fig. 2 is the front view of light guide plate upper surface in the utility model；
Fig. 3 is the side view of light guide plate in the utility model；
Fig. 4 is the front view of light guide plate lower face in the utility model.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and examples, the example of the embodiment is in attached drawing
In show, wherein same or similar label represents same or similar element or has the function of same or like from beginning to end
Element.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to for explaining the utility model, without being understood that
For the limitation to the utility model.
In the description of the utility model, it is to be understood that term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second ", " the 3rd " are only used for description purpose, and it is not intended that instruction or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second ", " the 3rd " are defined
One or more this feature can be expressed or be implicitly included to feature.In the description of the utility model, " multiples' " contains
Justice is two or more, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
Calmly ", the term such as " setting " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；
Can mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, may be used also
To be the interaction relationship of connection inside two elements or two elements.For the ordinary skill in the art,
Concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
As shown in Figure 1, the utility model embodiment provides a kind of backlight module, the backlight module includes layer from top to bottom
The folded light guide plate 100 and reflector plate 200 set, light guide plate 100 provided in this embodiment include light in part 110 and light guide section 120.
The lower face of the light in part 110 and light guide section 120 has multiple sites 130.The backlight module corresponds to light in part 110 and also sets
There is luminescence component 300, the light that luminescence component 300 is sent is after the entrance of light in part 110, and point light source or line source are via leaded light
Portion 120 is converted to area source and is projected from the upper surface of light guide section 120, and some light can be projected from the lower face of light guide section 120, but
It can be reflected back in light guide section 120 by the scattering of site 130 and the reflection of reflector plate 200, finally from the upper surface of light guide section 120
Project, to improve the brightness of light guide plate 100.
It should be appreciated that light guide plate 100 is that propylene is pressed into the smooth plate in surface using the method for ejection formation,
Then in the lower face of light guide plate 100 with existing laser ablation（Laser spots）Or diamond striker impact（Machinery is hit a little）Beat
Upper circular or square site 130, when light is mapped to site 130, reflected light can be spread toward all angles, then destroy reflection
Condition is projected by the upper surface of light guide plate 100, using various densitys, site 130 not of uniform size, light guide plate 100 can be made uniform
Shine.The purposes of reflecting plate 200 is returned in light guide plate 100 in the light reflection for exposing bottom surface, for improving the service efficiency of light.
As in Figure 2-4, the site 130 includes being formed in the first site 131 of 120 lower face of light guide section, and described the
One site 131 is hit a technique using machinery and is formed, and the lattice point structure uniformity that machinery is hit a little is good, and surface is smooth, and backlight illumination is high,
Aberration is small；The site 130 is further included when the first site 131 forms dark space using increased second site 132 of Laser Processing, institute
State the second site 132 and avoid the first site 131, in this way, the second site 132 of processing need not then remake mould and hit a little,
But process and expense can be reduced with Laser Processing directly on the existing mould with site, it is efficient, and laser
Point is sub-fraction region, small to aberration influential effect；The site 130, which further includes, is formed in 110 lower face of light in part
3rd site 133, the density of the 3rd site 133 are less than the density of the first site 131 and the density of the second site 132, institute
It is light density site to state the 3rd site 133, and the 3rd site 133 can use laser, machinery hit a little or other modes shape
Into compared with light in part does not have site in the prior art, can effectively prevent smooth reflector plate 200 and light guide plate 100 enters light
The absorption of portion 110 produces the integrity problems such as film wrinkle.It is worth noting that, the density of the 3rd site 133 has to very low, general
The density of site is divided into light density, Midst density and weight density, then the 3rd site 133 must belong to light density site, otherwise can shadow
The effect of pilot's tabula rasa and brightness.
It should be appreciated that the first site 131 described in the utility model either the second site 132 or the 3rd site
133 depth, diameter and site spacing can change according to actual conditions, such as can be proximate to the site 130 of luminescence component 300
Diameter is small and 130 depth money of site, and 130 diameter of site away from light source becomes larger and 130 depth of site deepens, maximizing
Increase reflective surface area, light utilization efficiency is improved, so as to lift brightness.Preferably, first site 131 is a diameter of
0.02-0.05mm, adjacent first site, 131 spacing are 0.005-0.4mm；A diameter of 0.01- of second site 132
0.04mm, adjacent second site, 132 spacing are 0.01-0.6mm；A diameter of 0.005-0.035mm of 3rd site 133,
Adjacent 3rd site spacing is 2-5mm.
Either the second site 132 or the 3rd site 133 can be circular, ellipse for first site 131 described in the present embodiment
Circular, any one or more figure combinations of diamond shape, the site 130 can be the distribution of snap shot formula or array is distributed.
Backlight module described in the utility model further includes the optical film group 400 for being located at 100 upper surface of light guide plate, the light
Learn film group and include at least diffusion barrier 410, lower bright enhancement film 420 and the upper bright enhancement film being sequentially laminated on 100 upper surface of light guide plate
430, the optical film group 400 to improve light guide plate 100 show light uniformity.
Backlight module described in the utility model further includes the shading being arranged in optical film group 400 and luminescence component 300
Piece 500, the anti-dazzling screen 500 prevent light leakage phenomena to block the light around light guide plate 100.
It is last it should be noted that above example is only illustrating the technical solution of the utility model embodiment rather than right
It is limited, although the utility model embodiment is described in detail with reference to preferred embodiment, this area it is common
Technical staff should be understood still can to the technical solution technical scheme is modified or replaced equivalently of the utility model embodiment, and this
A little scopes changed or equivalent substitution cannot also make amended technical solution depart from the utility model embodiment technical solution.
Claims (6)
1. a kind of backlight module, including the light guide plate and reflector plate being stacked from top to bottom, the light guide plate include light in part
And light guide section, the lower face of the light in part and light guide section have multiple sites, it is characterised in that the site includes：
First site, is formed in the lower face of light guide section, and first site is hit a technique using machinery and formed；
Second site, is formed in the lower face of light guide section, and second site is formed using laser processing technology, and described second
Avoid the first site in site；
3rd site, is formed in the lower face of light in part, and the density of the 3rd site is less than the density and second of the first site
The density of site.
2. a kind of backlight module according to claim 1, it is characterised in that hit a technique using machinery in the 3rd site
Formed or Laser Processing is formed.
A kind of 3. backlight module according to claim 1, it is characterised in that a diameter of 0.02- of first site
0.05mm, adjacent first site spacing are 0.005-0.4mm.
A kind of 4. backlight module according to claim 1, it is characterised in that a diameter of 0.01- of second site
0.04mm, adjacent second site spacing are 0.01-0.6mm.
A kind of 5. backlight module according to claim 1, it is characterised in that a diameter of 0.005- of the 3rd site
0.035mm, adjacent 3rd site spacing are 2-5mm.
6. backlight module according to claim 1, it is characterised in that the backlight module, which further includes, is located at light guide plate upper end
The optical film group in face, the optical film group include at least be sequentially laminated on diffusion barrier on light guide plate upper surface, lower bright enhancement film and
Upper bright enhancement film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148799.4U CN207268791U (en) | 2017-09-08 | 2017-09-08 | A kind of backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721148799.4U CN207268791U (en) | 2017-09-08 | 2017-09-08 | A kind of backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207268791U true CN207268791U (en) | 2018-04-24 |
Family
ID=61961612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721148799.4U Active CN207268791U (en) | 2017-09-08 | 2017-09-08 | A kind of backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207268791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856859A (en) * | 2019-03-27 | 2019-06-07 | 深圳创维－Rgb电子有限公司 | A kind of side entrance back module and display equipment |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
-
2017
- 2017-09-08 CN CN201721148799.4U patent/CN207268791U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109856859A (en) * | 2019-03-27 | 2019-06-07 | 深圳创维－Rgb电子有限公司 | A kind of side entrance back module and display equipment |
| CN113721388A (en) * | 2021-08-30 | 2021-11-30 | 京东方科技集团股份有限公司 | Backlight module and display module |
| CN113721388B (en) * | 2021-08-30 | 2023-12-01 | 京东方科技集团股份有限公司 | Backlight module and display module |
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