CN105445848A - Light guide plate and backlight module group - Google Patents
Light guide plate and backlight module group Download PDFInfo
- Publication number
- CN105445848A CN105445848A CN201511034092.6A CN201511034092A CN105445848A CN 105445848 A CN105445848 A CN 105445848A CN 201511034092 A CN201511034092 A CN 201511034092A CN 105445848 A CN105445848 A CN 105445848A
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- Prior art keywords
- layer
- guide plate
- light guide
- light
- matrix
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a light guide plate and backlight module group, and the light guide plate comprises a light intensifying layer, a mesh point layer, and a diffusion layer, wherein the light intensifying layer, the mesh point layer and the diffusion layer are sequentially overlapped, and the light intensifying layer is used for gathering the incident light. The mesh point layer is used for mixing the light gathered by the light intensifying layer. The diffusion layer is used for the atomization of the light gathered by the light intensifying layer. According to the invention, the structure of a light guide plate is improved, and the assembly technology of a backlight module is simplified.
Description
Technical field
The present invention relates to back light model setting technology field, particularly relate to a kind of light guide plate and backlight module.
Background technology
The backlight module technology of side entering type TV has been tending towards ripe in the market, and the optical material of traditional side-entering type backlight module generally needs: reflector plate, light guide plate, brightening piece, diffusion sheet and the LED lamp bar in side.Wherein, traditional side-entering type backlight module needs multiple processing step when assembling: be first positioned on backboard by reflector plate, then place light guide plate, brightening piece, diffusion sheet successively, place so many parts, make the packaging technology of backlight module comparatively complicated.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of light guide plate, is intended to the packaging technology simplifying backlight module.
For achieving the above object, the present invention proposes a kind of light guide plate, and this light guide plate comprises the order lustre adding layer of stacked setting, site layer and diffusion layer, wherein,
Described lustre adding layer, for assembling incident ray;
Described site layer, mixes for the light assembled by described lustre adding layer;
Described diffusion layer, is atomized for the light assembled described lustre adding layer.
Preferably, described lustre adding layer comprises the matrix of rectangular in cross-section setting and is located at the multiple light collecting parts of described matrix towards described diffusion layer side, multiple described light collecting part is formed along two relative incident side of described matrix, light collecting part described in each comprises two optically focused walls, described in two, one end of optically focused wall is connected with described matrix, described in two, optically focused wall is interconnected away from one end of described matrix, and one end that optically focused wall described in two is connected with described matrix is certainly to the tapered at one end away from described matrix.
Preferably, described in two, optically focused wall is mutually vertical.
Preferably, the Thickness scope of described matrix is between 120 to 320 microns; The link position of optically focused wall described in two is to the span of the relative position distance of described matrix between 25 to 30 microns, and the span of optically focused wall described in two and the relative position distance between described matrix link position is between 50 to 56 microns.
Preferably, described light collecting part comprises two first size light collecting parts and multiple second size light collecting part, the size of described first size light collecting part is greater than the size of described second size light collecting part, the position of two relative incident side of matrix described in two described first size light collecting part one_to_one corresponding is arranged, and multiple described second size light collecting part is between two described first size light collecting parts.
Preferably, described diffusion layer comprises middle layer, is located at described intermediate surface to the first diffusion particle layer of described lustre adding layer side and the second diffusion particle layer being located at described lustre adding layer side dorsad, described middle layer.
Preferably, the particle diameter in described second diffusion particle layer is greater than the particle diameter in described first diffusion particle layer.
Preferably, the Thickness scope of described site layer is between 8 to 30 microns.
Preferably, the Thickness scope of described lustre adding layer is between 150 to 350 microns.
The present invention also provides a kind of backlight module, and this backlight module comprises light guide plate as above, and this light guide plate comprises the order lustre adding layer of stacked setting, site layer and diffusion layer, and wherein, described lustre adding layer, for assembling incident ray; Described site layer, mixes for the light assembled by described lustre adding layer; Described diffusion layer, is atomized for the light assembled described lustre adding layer.
The present invention is by arranging the lustre adding layer of stacked setting, site layer and diffusion layer, and lustre adding layer is located at realizes one between site layer and diffusion layer both there is existing light guide plate function, gather again the Novel light guide plate structure of function adding lustre to, spread, this light guide plate is again an one-piece construction simultaneously, make backlight module when assembling, operate very easy, packaging efficiency improves simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, the structure according to these accompanying drawings can also obtain other accompanying drawing.
Fig. 1 is the perspective view of light guide plate preferred embodiment of the present invention;
Fig. 2 is the side diagram of lustre adding layer in the light guide plate shown in Fig. 1;
Fig. 3 is the side diagram of diffusion layer in the light guide plate shown in Fig. 1.
Drawing reference numeral illustrates:
| Label | Title |
| 10 | Lustre adding layer |
| 20 | Site layer |
| 30 | Diffusion layer |
| 11 | Matrix |
| 12 | Light collecting part |
| 121 | First size light collecting part |
| 122 | Second size light collecting part |
| 31 | Middle layer |
| 32 | First diffusion particle layer |
| 33 | Second diffusion particle layer |
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Need explanation, all directivity instruction (such as up, down, left, right, before and afters in the embodiment of the present invention ...) only for explaining the relative position relation, motion conditions etc. under a certain particular pose (as shown in drawings) between each parts, if when this particular pose changes, then directionality instruction also correspondingly changes thereupon.
In addition, relate to the description of " first ", " second " etc. in the present invention only for describing object, and instruction can not be interpreted as or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In addition; technical scheme between each embodiment can be combined with each other; but must be can be embodied as basis with those of ordinary skill in the art; when technical scheme combination occur conflicting maybe cannot realize time will be understood that the combination of this technical scheme does not exist, also not within the protection domain of application claims.
The present invention proposes a kind of light guide plate.
Referring to figs. 1 through Fig. 3, in embodiments of the present invention, this light guide plate comprises the lustre adding layer 10 of stacked setting, site layer 20 and diffusion layer 30, and described lustre adding layer 10 is located between described site layer 20 and diffusion layer 30.Should be understood that, the light guide plate of the present embodiment and the shape of existing light guide plate basically identical, be rectangular parallelepiped or square shape, simultaneously, the length and width side of its correspondence can be all the incident side of this light guide plate, but not being defined as the only shape of prior art herein, when there being special requirement, can also be the shape of corresponding customization.
In the present embodiment, the light that light guide plate side LED sends is injected in light guide plate through light guide plate side, and lustre adding layer 10 gets up for the light-ray condensing incidence, increases the brightness of light guide plate vertical direction.
Site layer 20 includes multiple site, and it act as after the light sent at light guide plate side LED enters light guide plate, avoids light to be totally reflected in light guide plate, light is mixed more even.Wherein, the shape of site can be circular, oval, square, rhombus, linear etc., and can adopt the technological formings such as hot pressing, radium-shine, injection moulding, printing.Wherein, the thickness of site layer 20 can not limit, and general span can between 8 to 30 microns.
Diffusion layer 30 is above with diffusion particle, and effect is that light source is atomized, and increases the angular field of view of light guide plate.
As from the foregoing, this light guide plate, when original function is constant, has gathered the function of adding lustre to, spreading, and this light guide plate is again an one-piece construction simultaneously, makes backlight module in an assembling process, operates very easy, and packaging efficiency improves simultaneously.
In above-described embodiment, lustre adding layer 10 can adopt the structure the same with existing brightening piece to realize, also can be adopt other structures that can realize its light-focusing function to realize, in a preferred embodiment, above-mentioned lustre adding layer 10 comprises the matrix 11 of rectangular in cross-section setting and is located at the multiple light collecting parts 12 of described matrix 11 towards described diffusion layer 30 side, wherein four sides of matrix 11 can be incident side, multiple described light collecting part 12 is formed along two relative incident side of described matrix 11, light collecting part 12 described in each comprises two optically focused walls, one end of optically focused wall described in two is connected with described matrix 11, optically focused wall described in two is interconnected away from one end of described matrix 11, one end that optically focused wall described in two is connected with described matrix 11 is certainly to the tapered at one end away from described matrix 11, to form hollow with matrix 11 and xsect is leg-of-mutton concentration structure.Wherein, matrix 11 is PET material, and it coordinates with light collecting part 12 and realizes light-focusing function.The wherein tapered at one end of optically focused wall described in two from one end of being connected with described matrix 11 extremely away from described matrix, for improving spotlight effect.Preferably, when optically focused wall described in two is mutually vertical, spotlight effect is better.
In this embodiment, the thickness of matrix 11 can carry out relative set according to the size of backlight module, and the size of general backlight module is larger, and the thickness of matrix 11 is corresponding thicker, and the backlight module of stock size, the Thickness scope of matrix 11 is between 120 to 320 microns.Accordingly, the link position of optically focused wall described in two is to the span of the relative position distance of described matrix 11 generally between 25 to 30 microns, and the span of optically focused wall described in two and the relative position distance between described matrix 11 link position is between 50 to 56 microns.And the integral thickness span of lustre adding layer 10 is generally between 150 to 350 microns.
In this embodiment, further, described light collecting part 12 comprises two first size light collecting parts 121 and multiple second size light collecting part 122, the size of first size light collecting part 121 is greater than the size of the second size light collecting part 122, to realize different spotlight effects, the position of two relative incident side of two first size light collecting part 121 one_to_one corresponding matrixes 11 is arranged, and multiple second size light collecting part 122 is between two first size light collecting parts 121.Be understandable that, the intensity of illumination of incident side is large, can improve spotlight effect by large-sized two first size light collecting parts 122.
With reference to Fig. 2, the size of first size light collecting part 121 and the second size light collecting part 122 can with reference to as follows, the height h1 h micron lower than the height h2 of the second size light collecting part 122 of described first size light collecting part 121, wherein the span of h is 2 to 3 microns, the width d1 d micron less of the width d2 of the second size light collecting part 122 of described first size light collecting part 121, wherein the span of d is 4 to 6 microns.
In above-described embodiment, diffusion layer 30 can adopt the structure the same with existing diffusion sheet to realize, in this preferred embodiment, diffusion layer 30 comprises middle layer 31, be located at described middle layer 31 towards the first diffusion particle layer 32 of described lustre adding layer 10 side and the second diffusion particle layer 33 being located at described lustre adding layer 10 side dorsad, described middle layer 31.
Wherein, middle layer 31 can adopt PET material, is atomized light source.Particle diameter in second diffusion particle layer 33 can with the particle diameter consistent size in the first diffusion particle layer 32.This first diffusion particle layer 32 and the second diffusion particle layer 33 are for improving light mixing effect, and the second diffusion particle layer 33 is also for preventing middle layer 31 to be scraped off simultaneously, shields.When particle diameter wherein in the second diffusion particle layer 33 is greater than the particle diameter in described first diffusion particle layer 32, protected effect is better.
The present invention also proposes a kind of backlight module, this backlight module comprises above-mentioned light guide plate, the concrete structure of this backlight module is with reference to above-described embodiment, because this backlight module have employed whole technical schemes of above-mentioned all embodiments, all beneficial effects that the technical scheme therefore with above-described embodiment is brought, this is no longer going to repeat them.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every under inventive concept of the present invention; utilize the equivalent structure transformation that instructions of the present invention and accompanying drawing content are done, or directly/be indirectly used in other relevant technical fields to include in scope of patent protection of the present invention.
Claims (10)
1. a light guide plate, is characterized in that, comprises the lustre adding layer of the stacked setting of order, site layer and diffusion layer, wherein,
Described lustre adding layer, for assembling incident ray;
Described site layer, mixes for the light assembled by described lustre adding layer;
Described diffusion layer, is atomized for the light assembled described lustre adding layer.
2. light guide plate as claimed in claim 1, it is characterized in that, described lustre adding layer comprises the matrix of rectangular in cross-section setting and is located at the multiple light collecting parts of described matrix towards described diffusion layer side, multiple described light collecting part is formed along two relative incident side of described matrix, light collecting part described in each comprises two optically focused walls, described in two, one end of optically focused wall is connected with described matrix, described in two, optically focused wall is interconnected away from one end of described matrix, and one end that optically focused wall described in two is connected with described matrix is certainly to the tapered at one end away from described matrix.
3. light guide plate as claimed in claim 2, it is characterized in that, described in two, optically focused wall is mutually vertical.
4. light guide plate as claimed in claim 3, it is characterized in that, the Thickness scope of described matrix is between 120 to 320 microns; The link position of optically focused wall described in two is to the span of the relative position distance of described matrix between 25 to 30 microns, and the span of optically focused wall described in two and the relative position distance between described matrix link position is between 50 to 56 microns.
5. light guide plate as claimed in claim 3, it is characterized in that, described light collecting part comprises two first size light collecting parts and multiple second size light collecting part, the size of described first size light collecting part is greater than the size of described second size light collecting part, the position of two relative incident side of matrix described in two described first size light collecting part one_to_one corresponding is arranged, and multiple described second size light collecting part is between two described first size light collecting parts.
6. the light guide plate as described in claim 1 to 5 any one, it is characterized in that, described diffusion layer comprises middle layer, be located at described intermediate surface to the first diffusion particle layer of described lustre adding layer side and the second diffusion particle layer being located at described lustre adding layer side dorsad, described middle layer.
7. light guide plate as claimed in claim 6, it is characterized in that, the particle diameter in described second diffusion particle layer is greater than the particle diameter in described first diffusion particle layer.
8. the light guide plate as described in claim 1 to 5 any one, is characterized in that, the Thickness scope of described site layer is between 8 to 30 microns.
9. the light guide plate as described in claim 1 to 5 any one, is characterized in that, the Thickness scope of described lustre adding layer is between 150 to 350 microns.
10. a backlight module, is characterized in that, comprises the light guide plate as described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034092.6A CN105445848B (en) | 2015-12-30 | 2015-12-30 | Light guide plate and backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511034092.6A CN105445848B (en) | 2015-12-30 | 2015-12-30 | Light guide plate and backlight module |
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| Publication Number | Publication Date |
|---|---|
| CN105445848A true CN105445848A (en) | 2016-03-30 |
| CN105445848B CN105445848B (en) | 2019-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511034092.6A Active CN105445848B (en) | 2015-12-30 | 2015-12-30 | Light guide plate and backlight module |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004247072A (en) * | 2003-02-10 | 2004-09-02 | Funai Electric Co Ltd | Planer light source device |
| CN101354455A (en) * | 2007-07-26 | 2009-01-28 | 精碟科技股份有限公司 | Diffusion brightening film sheet |
| CN101630093A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module using same |
| CN102073092A (en) * | 2011-03-03 | 2011-05-25 | 上海向隆电子科技有限公司 | Light guide plate, illuminating device and method for manufacturing light guide plate |
| CN202033493U (en) * | 2011-04-27 | 2011-11-09 | 祐鼎（永安）光电材料有限公司 | Light intensifying and diffusion membrane |
| CN202676940U (en) * | 2012-07-17 | 2013-01-16 | 京东方科技集团股份有限公司 | Light guide plate, lateral entering type backlight module, and liquid crystal display device |
| CN202771134U (en) * | 2012-08-29 | 2013-03-06 | 广州创维平面显示科技有限公司 | Side entering type liquid crystal display device |
| CN203204187U (en) * | 2012-12-21 | 2013-09-18 | 深圳市康冠技术有限公司 | Backlight source and light guide plate structure thereof |
| CN104820258A (en) * | 2015-04-24 | 2015-08-05 | 深圳市汇晨电子有限公司 | Integrated light guide plate having light diffusion function |
-
2015
- 2015-12-30 CN CN201511034092.6A patent/CN105445848B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004247072A (en) * | 2003-02-10 | 2004-09-02 | Funai Electric Co Ltd | Planer light source device |
| CN101354455A (en) * | 2007-07-26 | 2009-01-28 | 精碟科技股份有限公司 | Diffusion brightening film sheet |
| CN101630093A (en) * | 2008-07-15 | 2010-01-20 | 嘉威光电股份有限公司 | Optical diaphragm and backlight module using same |
| CN102073092A (en) * | 2011-03-03 | 2011-05-25 | 上海向隆电子科技有限公司 | Light guide plate, illuminating device and method for manufacturing light guide plate |
| CN202033493U (en) * | 2011-04-27 | 2011-11-09 | 祐鼎（永安）光电材料有限公司 | Light intensifying and diffusion membrane |
| CN202676940U (en) * | 2012-07-17 | 2013-01-16 | 京东方科技集团股份有限公司 | Light guide plate, lateral entering type backlight module, and liquid crystal display device |
| CN202771134U (en) * | 2012-08-29 | 2013-03-06 | 广州创维平面显示科技有限公司 | Side entering type liquid crystal display device |
| CN203204187U (en) * | 2012-12-21 | 2013-09-18 | 深圳市康冠技术有限公司 | Backlight source and light guide plate structure thereof |
| CN104820258A (en) * | 2015-04-24 | 2015-08-05 | 深圳市汇晨电子有限公司 | Integrated light guide plate having light diffusion function |
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| Publication number | Publication date |
|---|---|
| CN105445848B (en) | 2019-05-31 |
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