CN201475893U - Splicable light guide plate and backlight device - Google Patents
Splicable light guide plate and backlight device Download PDFInfo
- Publication number
- CN201475893U CN201475893U CN2009202041405U CN200920204140U CN201475893U CN 201475893 U CN201475893 U CN 201475893U CN 2009202041405 U CN2009202041405 U CN 2009202041405U CN 200920204140 U CN200920204140 U CN 200920204140U CN 201475893 U CN201475893 U CN 201475893U
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- CN
- China
- Prior art keywords
- lgp
- light source
- led light
- guide plate
- light guide
- 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
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract 1
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
Images
Abstract
The utility model provides a splicable light guide plate and a backlight device. One side surface of the light guide plate is provided with a groove that is used for arranging an LED light source and can splice the light guide plates into a whole through the LED light source; and the light outlet direction of the LED light source is lateral luminescence. In the utility model, by arranging the groove used for arranging the LED light source on the side surface of the light guide plate, the light guide plates are spliced together by the LED light source, thus forming a large light guide plate. As the thickness of each small light guide plate can be the thinnest, the defect that the thickness of the light guide plate increases along with the increment of the size of the LED display screen in the background technology is overcome. As each small light guide plate can ensure brightness and light outlet uniformity, the large spliced light guide plate can also ensure the brightness and the light outlet uniformity.
Description
Technical field
The utility model relates to field of photoelectric technology, relates in particular to a kind of sliceable LGP and back lighting device.
Background technology
Present widely used LGP, the technology that adopts spectrum analysis to combine with laser engraving or digital printing, under constant temperature, constant humidity, dustless environmental condition, be made, have ultra-thin superbright, leaded light evenly, characteristics such as energy-conserving and environment-protective, no dark space, installation and maintenance simple and fast.
At present the Breadth Maximum of LGP can reach 1500mm, and length reaches 3000mm most, and minimal thickness is 2mm.Size is big more, and in order to guarantee brightness, thickness is also wanted corresponding increase, and also phase strain differential of light guide effect, and its thickness of the thickest LGP also is no more than 20mm.
As shown in Figure 1, LGP 10 is that propylene is pressed into ganoid plate, use then high reflectance and not the material of extinction 12 stamp the site 13 that is used for spreading light in the plate bottom surface, its upper surface is 11, the side is 14.When light was mapped on the site, light reflected to all directions, penetrated from LGP is positive at last.For making the LGP uniformly light-emitting, density, not of uniform size will be made in the site, and is roughly the same to the probability of all directions reflection to guarantee light.
Backlight in the LED display, its side back lighting device just includes LGP.When the LED display size is very big, be to guarantee the brightness of area source, the thickness of LGP will corresponding thereupon increase, makes that the thickness of LED-backlit module also will corresponding thereupon increase, can't do thinlyyer.
Have, when the LED display size was very big, because four sides of display screen are far away apart from the display screen center, present LGP can't become uniform surface light source with spot light technically, has the problem of brightness uniformity difference all the time again.
The utility model content
For this reason, technical problem to be solved in the utility model is: a kind of sliceable LGP and back lighting device are provided, used the LED-backlit device of this LGP can do thinlyyer, can also ensure that when being applied in the large scale LED display, the area source bright dipping is even simultaneously.
So the utility model provides a kind of sliceable LGP, to offer one in a side of LGP and be used to place led light source, and LGP can be spliced the all-in-one-piece groove each other by this led light source, described led light source light direction is that side is luminous.
Described slot opening is in the side and the bottom surface of LGP, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
Described slot opening is in the side and the bottom surface of LGP, and about through two adjacent sides, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
All be coated with the adularescent reflectance coating in other sides of LGP.
In the time of in led light source is placed on described groove, the PCB wiring board of described led light source is parallel with described LGP bottom.
Described LGP is positive six prisms.
The utility model also provides a kind of back lighting device, comprise sliceable LGP and led light source, wherein, offer one in a side of LGP and be used to place described led light source, and LGP can be spliced the all-in-one-piece groove each other by this led light source, described led light source light direction is that side is luminous.
Described slot opening is in the side and the bottom surface of LGP, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
Described slot opening is in the side and the bottom surface of LGP, and about through two adjacent sides, the groove surface parallel with the LGP upper surface is provided with the site.
In the time of in led light source is placed on described groove, the PCB wiring board of described led light source is parallel with described LGP bottom.
Sliceable LGP described in the utility model and back lighting device are used to place the groove of led light source by offering one in the LGP side, and utilize this led light source that LGP is stitched together each other, form a back lighting device.Because each little light guide plate can be accomplished the thinnest, so back lighting device of spliced LGP and formation, its thickness also can be accomplished thinner, has overcome described in the background technology when the LED display size becomes big the drawback that LGP and back lighting device thickness will increase thereupon.Can both ensure the brightness of himself and go out uniformity of light owing to each little LGP again, therefore, the spliced big LGP and the back lighting device of formation have also ensured brightness and have gone out uniformity of light, overcome described in the background technology when the LED display size is very big the problem of LGP and back lighting device brightness uniformity difference.
Description of drawings
Fig. 1 is the described light conducting plate structure schematic diagram of background technology;
Fig. 2 is the utility model embodiment one described sliceable light conducting plate structure schematic diagram;
Fig. 3 is a cutaway view of LGP shown in Figure 2;
Fig. 4 is the another cutaway view of LGP shown in Figure 2;
Fig. 5 is the utility model embodiment two described sliceable light conducting plate structure schematic diagrames;
Fig. 6 is a cutaway view of the back lighting device of a plurality of LGPs and led light source splicing back formation.
The specific embodiment
Below, in conjunction with the accompanying drawings the utility model is described in detail.
Embodiment one
As Fig. 2, shown in Figure 4, LGP 20 is positive six prisms, six sides are arranged, wherein on a side 24, offer groove 241, this groove 241 is used to place led light source, the led light source of being made up of this led light source can be spliced into one each other with a plurality of identical LGPs, and groove 241 is opened on the side 24 and the bottom surface 22 of LGP.
In order to ensure that led light source light effectively incides in the LGP, it is luminous that the led light source light direction is chosen as side.As shown in Figure 3, light is from led light source side 40 incidents adjacent with LGP.
As shown in Figure 6, LGP 20 can be stitched together each other, form a back lighting device, and then form a big area source by led light source 30.This back lighting device comprises LGP 20 and with its led light source that is stitched together.The LGP 20 of this back lighting device and embodiment one, embodiment two described LGPs are identical, no longer are repeated in this description at this.
Further, for the brightness that ensures the LGP bright dipping and go out uniformity of light, will make that the probability to all directions reflection in the LGP is roughly the same, for this reason, site 221 on the bottom surface 22 of distance groove 241 different distance, its size is also different with density, and near more apart from groove 241, site 221 is big more, close more, far away more apart from groove 241 distances, site 221 is more little, and is thin more.
For ensureing the brightness of LGP,, be used to increase reflection of light being equipped with site 221 on the groove opposite face and on the bottom surface of light guide plate.
For the reverberation that ensures LGP 20 inside can both penetrate from the upper surface 21 of LGP 20, in all the other sides of LGP 20, promptly do not offer on the side of groove and all scribble white reflecting layer, make light not reveal from all the other sides.
As seen, when a plurality of described LGPs 20 are stitched together, formed a big LGP, and each little light guide plate can be accomplished the thinnest, overcome described in the background technology when the LED display size becomes big the drawback that light guide plate will increase thereupon.Can both ensure the brightness of himself and go out uniformity of light owing to each little LGP again, therefore, spliced big LGP also ensured brightness and gone out uniformity of light, overcome described in the background technology when the LED display size is very big the problem of light guide plate luminance lack of homogeneity.
Embodiment two
Present embodiment and embodiment one difference are:
As shown in Figure 5, the groove 241 of present embodiment LGP 20 ' also be opened on the side 24 of LGP, it is opened on side 24 and the bottom surface 22, and about through two adjacent sides, this groove 241 ' on parallel or intimate parallel groove surface, be provided with the site too with the LGP upper surface.
No longer be repeated in this description at this with embodiment one same section.
The described LGP 20 of above-mentioned two embodiment also can be a regular triangular prism, and four regular triangular prisms are spliced into positive six prisms.
The described led light source of the utility model embodiment can be a LED lamp, also the LED lamp bar that can be made up of a plurality of LED lamps.
In sum, the described sliceable LGP of the utility model embodiment is used to place the groove of led light source by offering one in the LGP side, and utilizes this led light source that LGP is stitched together each other, forms a big LGP.Because it is the thinnest that each little light guide plate can be accomplished, overcome described in the background technology when the LED display size becomes big the drawback that light guide plate will increase thereupon.Can both ensure the brightness of himself and go out uniformity of light owing to each little LGP again, therefore, spliced big LGP also ensured brightness and gone out uniformity of light, overcome described in the background technology when the LED display size is very big the problem of light guide plate luminance lack of homogeneity.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. a sliceable LGP is characterized in that, offers one in a side of LGP and is used to place led light source, and LGP can be spliced the all-in-one-piece groove each other by this led light source, and described led light source light direction is that side is luminous.
2. LGP according to claim 1 is characterized in that, described slot opening is in the side and the bottom surface of LGP, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
3. LGP according to claim 1 is characterized in that, described slot opening is in the side and the bottom surface of LGP, and about through two adjacent sides, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
4. LGP according to claim 1 is characterized in that, all is coated with the adularescent reflectance coating in other sides of LGP.
5. LGP according to claim 1 is characterized in that, in the time of in led light source is placed on described groove, the PCB wiring board of described led light source is parallel with described LGP bottom.
6. LGP according to claim 1 is characterized in that, described LGP is positive six prisms.
7. a back lighting device is characterized in that, comprises sliceable LGP and led light source, wherein, offer one in a side of LGP and be used to place described led light source, and LGP can be spliced the all-in-one-piece groove each other by this led light source, described led light source light direction is that side is luminous.
8. back lighting device according to claim 7 is characterized in that, described slot opening is in the side and the bottom surface of LGP, with on the LGP upper surface groove opposite face and be equipped with the site on the bottom surface of light guide plate.
9. back lighting device according to claim 7 is characterized in that, described slot opening is in the side and the bottom surface of LGP, and about through two adjacent sides, the groove surface parallel with the LGP upper surface is provided with the site.
10. back lighting device according to claim 7 is characterized in that, in the time of in led light source is placed on described groove, the PCB wiring board of described led light source is parallel with described LGP bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041405U CN201475893U (en) | 2009-08-28 | 2009-08-28 | Splicable light guide plate and backlight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202041405U CN201475893U (en) | 2009-08-28 | 2009-08-28 | Splicable light guide plate and backlight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201475893U true CN201475893U (en) | 2010-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202041405U Expired - Fee Related CN201475893U (en) | 2009-08-28 | 2009-08-28 | Splicable light guide plate and backlight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201475893U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075673A1 (en) * | 2010-12-08 | 2012-06-14 | 深圳安嵘光电产品有限公司 | Puzzle type light guide panel and method for making the same |
| CN105700060A (en) * | 2014-11-28 | 2016-06-22 | 上海航空电器有限公司 | Side light emitting type light guide board structure |
| WO2020147517A1 (en) * | 2019-01-15 | 2020-07-23 | 深圳光峰科技股份有限公司 | Led display screen |
-
2009
- 2009-08-28 CN CN2009202041405U patent/CN201475893U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075673A1 (en) * | 2010-12-08 | 2012-06-14 | 深圳安嵘光电产品有限公司 | Puzzle type light guide panel and method for making the same |
| CN105700060A (en) * | 2014-11-28 | 2016-06-22 | 上海航空电器有限公司 | Side light emitting type light guide board structure |
| WO2020147517A1 (en) * | 2019-01-15 | 2020-07-23 | 深圳光峰科技股份有限公司 | Led display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FLAT PANEL DISPLAY TECHNOLOGY CENTER, NANHAI, FOSH |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20101213 Address after: 518053 Nanshan District, Guangdong overseas Chinese town Shennan Road, No. 9008, No. Co-patentee after: Foshan Nanhai Panel Display Technology Center Patentee after: Konka Group Co., Ltd. Address before: 518053 Nanshan District, Guangdong overseas Chinese town Shennan Road, No. 9008, No. Patentee before: Konka Group Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120828 |