CN203363994U - Reflector plate and backlight module using same - Google Patents
Reflector plate and backlight module using same Download PDFInfo
- Publication number
- CN203363994U CN203363994U CN 201320368526 CN201320368526U CN203363994U CN 203363994 U CN203363994 U CN 203363994U CN 201320368526 CN201320368526 CN 201320368526 CN 201320368526 U CN201320368526 U CN 201320368526U CN 203363994 U CN203363994 U CN 203363994U
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- light modulation
- light
- reflector plate
- modulation parts
- backlight module
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Abstract
The utility model relates to a reflector plate and a backlight module using the reflector plate. The reflector plate is provided with at least one installation region and at least one dimming region which correspond mutually. The installation region is used for installing a luminous element, the dimming region is arranged adjacent to the installation region, and each dimming region is provided with plural dimming components used for adjusting the light reflecting capacity of the dimming region. Due to the fact that the dimming components are arranged on the dimming region adjacent to the installation region of the luminous element on the reflector plate and used for adjusting the light reflecting capacity of the dimming region, the light luminance value of the dimming region is the same as or proximate to that of other regions on the reflector plate, luminance evenness of the backlight module is achieved, and the problem that in the prior art, a backlight module is prone to being uneven in luminance is solved. Moreover, flexible adjustment can be performed according to actual conditions, so that an expected optical effect is achieved, cost of the prior art is not increased, and using is convenient.
Description
Technical field
The utility model relates to a kind of reflector plate and uses its backlight module, especially a kind of backlight module that carries out the reflector plate of light reflection capacity adjusting and use it.
Background technology
The manufacturing technology of display unit (Liquid Crystal Display device, LCD device) is development rapidly in recent years, no matter it is significantly progressive to make display unit all have on image quality, reaction rate and panel size.And because it has possessed, volume is little, lightweight, power saving reaches the advantages such as low radiation, makes display unit be applied in large quantities in the various electronic products such as mobile computer, digital camera, digital Video Camera, mobile phone, computer screen and LCD TV.But the display floater because the display panels in display unit is non-self-luminosity, need to provide light source by backlight module (backlight module), can produce the effect of display frame.
The planar light source that backlight module is required as liquid crystal panel, its luminosity and uniformity of luminance have very high requirement, to guarantee the quality of show image.The assembly of backlight module mainly comprises that light source, exiting surface blooming piece and reflector plate form, and reflector plate has played larger decisive role to optical effect.The design overwhelming majority of reflector plate lays stress on the refraction angle and the reflectivity by the material decision of side at present, and the structural design that affects optical effect is had to certain limitation.Please refer to Figure 1A and Figure 1B, the top view of the reflector plate that Figure 1A is prior art, the side view of the reflector plate that light source is installed that Figure 1B is prior art, light emitting diode 21 is arranged on circuit board 20, be provided with through hole 11 on reflector plate 10, during the assembling backlight module, light emitting diode 21 is placed in the through hole 11 on reflector plate 10.While testing this type of backlight module, find, near brightness value light emitting diode 21 obviously is greater than other regional brightness values, causes the overall brightness uniformity of backlight module poor, and impact shows the optical quality of module then.
The utility model content
In order to address the above problem, the problem that the utility model is poor for the backlight module uniformity of luminance of prior art, propose a kind of reflector plate that carries out the light reflection capacity adjusting.
In order to achieve the above object, the utility model proposes a kind of reflector plate, this reflector plate has corresponding at least one installation region and at least one light modulation zone, this installation region is in order to installing light emitting element, this installation region of this light modulation region adjacent arranges, each light modulation region division has a plurality of light modulation parts, and these a plurality of light modulation parts are for adjusting the light reflection ability in this light modulation zone.
As optional technical scheme, these light modulation parts are open-work; Perhaps these light modulation parts are printing net-point; Perhaps these light modulation parts are light-absorption layer.
As optional technical scheme, the size of these a plurality of light modulation parts identical and centered by this installation region by close to dredging the arrangement that stretches out.
As optional technical scheme, these a plurality of light modulation parts stretch out and arrange and size diminishes gradually centered by this installation region.
As optional technical scheme, the gross area of these a plurality of light modulation parts accounts for 10%～99% of this corresponding light modulation zone gross area.
As optional technical scheme, being shaped as of each light modulation parts is circular, square, a kind of or above-mentioned combination arbitrarily in rhombus, ellipse.
As optional technical scheme, in the form of a ring, and the spacing of the interior ring of this ring-type and outer interannular is 5mm～80mm in this light modulation zone.
As optional technical scheme, if these light modulation parts are circular, the diameter of these light modulation parts is 0.1mm～2mm; If these light modulation parts are other shapes, the Breadth Maximum of these light modulation parts is 0.1mm～20mm.
As optional technical scheme, this installation region is perforate, and light-emitting component is placed in this perforate.
Reflector plate of the present utility model is by the light modulation region division light modulation parts of the installation region at contiguous light-emitting component, open-work for example is set, printing net-point and/or black coating, adjust the light reflection ability in light modulation zone, make the light luminance value in light modulation zone identical or close with other regional light luminance values on reflector plate, the brightness that realizes backlight module is even, solved the problem of the brightness disproportionation that in the prior art, backlight module easily occurs, and can adjust flexibly according to practical situation, to reach the optical effect of expectation, do not increase the cost of prior art, and easy to use.
In addition, the utility model also proposes a kind of backlight module, this backlight module comprises reflector plate, this reflector plate has corresponding at least one installation region and at least one light modulation zone, this installation region is in order to installing light emitting element, this installation region of this light modulation region adjacent arranges, and each light modulation region division has a plurality of light modulation parts, and these a plurality of light modulation parts are for adjusting the light reflection ability in this light modulation zone.
As optional technical scheme, these light modulation parts are open-work; Perhaps these light modulation parts are printing net-point; Perhaps these light modulation parts are light-absorption layer.
As optional technical scheme, the size of these a plurality of light modulation parts identical and centered by this installation region by close to dredging the arrangement that stretches out.
As optional technical scheme, these a plurality of light modulation parts stretch out and arrange and size diminishes gradually centered by this installation region.
As optional technical scheme, the gross area of these a plurality of light modulation parts accounts for 10%～99% of this corresponding light modulation zone gross area.
As optional technical scheme, being shaped as of each light modulation parts is circular, square, a kind of or above-mentioned combination arbitrarily in rhombus, ellipse.
As optional technical scheme, in the form of a ring, and the spacing of the interior ring of this ring-type and outer interannular is 5mm～80mm in this light modulation zone.
As optional technical scheme, if these light modulation parts are circular, the diameter of these light modulation parts is 0.1mm～2mm; If these light modulation parts are other shapes, the Breadth Maximum of these light modulation parts is 0.1mm～20mm.。
As optional technical scheme, this installation region is perforate, and light-emitting component is placed in this perforate.
Backlight module of the present utility model, light modulation region division light modulation parts by the installation region of contiguous light-emitting component on reflector plate, open-work for example is set, printing net-point and black coating, adjust the light reflection ability in light modulation zone, make the light luminance value in light modulation zone identical or close with other regional light luminance values on reflector plate, the brightness that realizes backlight module is even, solved the problem of the brightness disproportionation that in the prior art, backlight module easily occurs, and can adjust flexibly according to practical situation, to reach the optical effect of expectation, do not increase the cost of prior art, and easy to use.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
The accompanying drawing explanation
The top view of the reflector plate that Figure 1A is prior art;
The side view of the reflector plate that light source is installed that Figure 1B is prior art;
The side view that Fig. 2 is backlight module of the present utility model;
The top view that Fig. 3 is reflector plate one embodiment of the present utility model.
The specific embodiment
Please refer to Fig. 2, the side view that Fig. 2 is backlight module of the present utility model, backlight module 100 comprises reflector plate 110.For more clearly setting forth content of the present invention, in the present embodiment, backlight module 100 also comprises light source module 120, diffuser plate 130, blooming piece 140 and framework 150, and its middle frame 150 is in order to accommodating reflector plate 110, optical module 120, diffuser plate 130 and blooming piece 140.Light source module 120 comprises light-emitting component 121 and circuit board 122, wherein light-emitting component 121 is arranged on circuit board 122, light-emitting component 121 exposes on reflector plate 110, and between reflector plate 110 and diffuser plate 130, blooming piece 140 is positioned on diffuser plate 130, reflector plate 110 is in order to light reflection that light-emitting component 121 is sent to diffuser plate 130, and diffuser plate 130 and blooming piece 140 can make light more evenly soft.
Please refer to Fig. 3, the top view that Fig. 3 is reflector plate one embodiment of the present utility model.Reflector plate 110 has corresponding at least one installation region 111 and at least one light modulation zone 112, installation region 111 is in order to installing light emitting element 121, contiguous installation region 111, light modulation zone 112 arranges, each light modulation zone 112 is provided with a plurality of light modulation parts 1121, and a plurality of light modulation parts 1121 are for adjusting the light reflection ability in light modulation zone 112.The utility model is by adjusting the light reflection ability in light modulation zone 112, make the light luminance value identical with other regional light luminance values on reflector plate 110 (or being tending towards identical or close according to actual needs) in light modulation zone 112, thereby improve the brightness uniformity of backlight module 100.
Shown in Fig. 2 and Fig. 3, in the present embodiment, installation region 111 is perforate, light-emitting component 121 is placed in perforate, and light-emitting component 121 exposes on reflector plate 110, light-emitting component 121 in the present embodiment is light emitting diode, and light emitting diode is circular, for the shape with light emitting diode is complementary, therefore the perforate in Fig. 3 is round hole, in practical operation, light emitting diode also can be other shapes, such as rectangle, square etc., the shape of the perforate that the user can match according to the actual conditions selection.It should be noted that, installation region 111 also can be other forms (for example directly light-emitting component being installed on reflector plate), with perforate, is not limited.
In the present embodiment, light modulation parts 1121 can be open-work, and open-work is for reducing the light reflection ability in light modulation zone 112.During light-emitting component 121 work, open-work allows part light to pass, the light reflection ability in light modulation zone 112 reduces, thereby make the light luminance value at 112 places, light modulation zone descend, can be by the debugging of the spacing to radius, number and the open-work of open-work in practical operation, make the light luminance value at 112 places, light modulation zone identical or close with other regional light luminance values on reflector plate 110, thereby improve the brightness uniformity of backlight module 100.
In practical operation, light modulation parts 1121 also can be printing net-point, during light-emitting component 121 work, printing net-point make through the reflection of light generation different directions herein and or refraction, the phenomenon of having avoided the light in existing reflector plate light modulation zone to reflect facing one direction, thereby it is identical or close that the light luminance value at 112 places, light modulation zone is adjusted to other regional light luminance values, make in backlight module 100 light everywhere even.In other embodiment, also can reduce by printing net-point the light reflection ability in light modulation zone 112, make the brightness value of the light in light modulation zone 112 be reduced to the light luminance value regional with other identical or close, thus the brightness uniformity of raising backlight module 100.
In practical operation, light modulation parts 1121 also can be light-absorption layer, for example black coating, during light-emitting component 121 work, black coating absorption portion light, reduce the light reflection ability in light modulation zone 112, thereby it is identical or close to make the light luminance value in light modulation zone 112 drop to the light luminance value regional with other, makes in backlight module 100 light everywhere even.In practical operation, the user can select the colorant with extinction characteristic to be coated with voluntarily, with above-mentioned black coating, is not limited.
Above-mentioned three kinds of situations all can realize in backlight module 100 that light everywhere is even, in practical operation, if the optical effect that expectation reaches requires very too not high, also can consider to reduce the number of light-emitting component 121, reach identical or better effect compared to existing technology, thereby, maintaining on the basis of original optical effect, reduced production cost.
As shown in Figure 3, in the present embodiment, the size of a plurality of light modulation parts 1121 is identical, and centered by installation region 111 by close to dredging the arrangement that stretches out.During light-emitting component 121 work, the light received the closer to the zone of light-emitting component 121 is more, thus in the situation that light modulation parts 1121 sizes are identical, by by close to thin arrangement, can make in light modulation zone 112 light everywhere even.In other embodiment, the size of a plurality of light modulation parts 1121 also can be not identical, but stretch out centered by installation region 111, arrange and size diminishes gradually, such design can realize in light modulation zone 112 that light everywhere is even equally, and the user can select according to actual needs voluntarily.
As shown in Figure 3, in the present embodiment, each light modulation parts 1121 is circular, and the diameter of each light modulation parts 1121 is 0.1mm～2mm.In other embodiment, that light modulation parts 1121 also can be is square, a kind of or above-mentioned combination arbitrarily in rhombus, ellipse, the user can select shape and the size of light modulation parts 1121 according to actual needs voluntarily, preferably, when light modulation parts 1121 are circular other outer shapes, the Breadth Maximum of light modulation parts 1121 is 0.1mm～20mm, but not as limit.
As shown in Figure 3, in the present embodiment, in the form of a ring, and the spacing d of the interior ring of this ring-type and outer interannular is 5mm～80mm in light modulation zone 112.The factor analysis such as spacing that the angle of the light sent of the area in light modulation zone 112 and light-emitting component 121, adjacent light-emitting component are 121, the concrete condition of the light-emitting component 121 that the user can use according to reality is adjusted definition.
In the present embodiment, the gross area of a plurality of light modulation parts 1121 accounts for 10%～99% of corresponding light modulation zone 112 gross areas.The factor analysis such as spacing that the area accounting of a plurality of light modulation parts 1121 and the power of light-emitting component 121, adjacent light-emitting component are 121, the user can be according to actual service condition, a kind of or above-mentioned combination arbitrarily for the spacing of 1121 of size, number, the adjacent light modulation parts of light modulation parts 1121 is adjusted, until the light luminance value in light modulation zone 112 is identical or close with other regional light luminance values on reflector plate 110 or reach desired optical effect.
Reflector plate of the present utility model and backlight module, light modulation region division light modulation parts by the installation region of contiguous light-emitting component on reflector plate, open-work for example is set, printing net-point and/or black coating, adjust the light reflection ability in light modulation zone, make the light luminance value in light modulation zone identical or close with other regional light luminance values on reflector plate, the brightness that realizes backlight module is even, solved the problem of the brightness disproportionation that in the prior art, backlight module easily occurs, and can adjust flexibly according to practical situation, make it reach the optical effect of expectation, do not increase the cost (even reducing production costs) of prior art, easy to use, .
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (10)
1. a reflector plate, it is characterized in that: this reflector plate has corresponding at least one installation region and at least one light modulation zone, this installation region is in order to installing light emitting element, this installation region of this light modulation region adjacent arranges, each light modulation region division has a plurality of light modulation parts, and these a plurality of light modulation parts are for adjusting the light reflection ability in this light modulation zone.
2. reflector plate according to claim 1, it is characterized in that: these light modulation parts are open-work; Perhaps these light modulation parts are printing net-point; Perhaps these light modulation parts are light-absorption layer.
3. reflector plate according to claim 1 is characterized in that: the size of these a plurality of light modulation parts identical and centered by this installation region by close to dredging the arrangement that stretches out.
4. reflector plate according to claim 1 is characterized in that: these a plurality of light modulation parts stretch out and arrange and size diminishes gradually centered by this installation region.
5. reflector plate according to claim 1 is characterized in that: the gross area of these a plurality of light modulation parts accounts for 10%～99% of this corresponding light modulation zone gross area.
6. reflector plate according to claim 1 is characterized in that: being shaped as of each light modulation parts is circular, square, a kind of or above-mentioned combination arbitrarily in rhombus, ellipse.
7. reflector plate according to claim 1 is characterized in that: in the form of a ring, and the spacing of the interior ring of this ring-type and outer interannular is 5mm～80mm in this light modulation zone.
8. reflector plate according to claim 1 is characterized in that: if these light modulation parts for circular, the diameter of these light modulation parts is 0.1mm～2mm; If these light modulation parts are other shapes, the Breadth Maximum of these light modulation parts is 0.1mm～20mm.
9. reflector plate according to claim 1, it is characterized in that: this installation region is perforate, and light-emitting component is placed in this perforate.
10. a backlight module, is characterized in that this backlight module comprises reflector plate as in one of claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320368526 CN203363994U (en) | 2013-06-25 | 2013-06-25 | Reflector plate and backlight module using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320368526 CN203363994U (en) | 2013-06-25 | 2013-06-25 | Reflector plate and backlight module using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363994U true CN203363994U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320368526 Expired - Lifetime CN203363994U (en) | 2013-06-25 | 2013-06-25 | Reflector plate and backlight module using same |
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| Country | Link |
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| CN (1) | CN203363994U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892149A (en) * | 2016-06-07 | 2016-08-24 | 京东方科技集团股份有限公司 | Light-emitting assembly, backlight module and display device |
| CN109488984A (en) * | 2018-12-19 | 2019-03-19 | 江西苏洋太阳能科技有限公司 | Light adjustable lighting apparatus suitable for tunnel portal |
| WO2023039855A1 (en) * | 2021-09-17 | 2023-03-23 | 瑞仪(广州)光电子器件有限公司 | Reflector sheet, backlight module and display apparatus |
-
2013
- 2013-06-25 CN CN 201320368526 patent/CN203363994U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105892149A (en) * | 2016-06-07 | 2016-08-24 | 京东方科技集团股份有限公司 | Light-emitting assembly, backlight module and display device |
| US10330978B2 (en) | 2016-06-07 | 2019-06-25 | Boe Technology Group Co., Ltd. | Light emission assembly of backlight module, backlight module and display device |
| CN109488984A (en) * | 2018-12-19 | 2019-03-19 | 江西苏洋太阳能科技有限公司 | Light adjustable lighting apparatus suitable for tunnel portal |
| WO2023039855A1 (en) * | 2021-09-17 | 2023-03-23 | 瑞仪(广州)光电子器件有限公司 | Reflector sheet, backlight module and display apparatus |
| US11835819B2 (en) | 2021-09-17 | 2023-12-05 | Radiat Opto-Electronics Corporation | Reflective sheet, backlight module, and display device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
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| CX01 | Expiry of patent term |