CN201974542U - Light guiding board and illuminating apparatus - Google Patents
Light guiding board and illuminating apparatus Download PDFInfo
- Publication number
- CN201974542U CN201974542U CN2011200541019U CN201120054101U CN201974542U CN 201974542 U CN201974542 U CN 201974542U CN 2011200541019 U CN2011200541019 U CN 2011200541019U CN 201120054101 U CN201120054101 U CN 201120054101U CN 201974542 U CN201974542 U CN 201974542U
- Authority
- CN
- China
- Prior art keywords
- rete
- light
- guide plate
- light guide
- refractive index
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a light guiding board and an illuminating apparatus. The light guiding board comprises a first membrane layer having a first of refraction and a second membrane layer having a second index of refraction. The second membrane layer is arranged on the first membrane layer and an interface is arranged between the first membrane layer and the second membrane layer. Many diffusion particles are spread in the second membrane layer. Many light guiding microstructures are arranged on the first membrane layer and disposed on the far side away from the interface. Many light harvesting microstructures are arranged on the second membrane layer and disposed on the far side away from the interface. The beneficial effects of the utility model are that: the diffusion particles, light guiding microstructures and light harvesting microstructures are arranged on the light guiding board and work together to accomplish the optical effects of light rays diffusion and intensification; the light guiding board can be used to achieve many optical functions, thus avoiding the use of many optical sheets.
Description
Technical field
The utility model relates to a kind of lighting device, relates in particular to the light guide plate in this lighting device.
Background technology
Generally speaking, liquid crystal indicator is made of liquid crystal panel and backlight module.Because liquid crystal panel itself does not have the characteristics of luminescence, provide area source so need to rely on backlight module.Along with the development trend of the LCD TV of large scale, slimming, present backlight module is to adopt the lateral incident type backlight module with light emitting diode and light guide plate mostly.
Generally speaking, in the lateral incident type backlight module, optics plate from bottom to top is in regular turn: reflecting plate, light guide plate, time diffusion sheet, following prismatic lens, last prismatic lens and last diffusion sheet etc., that is, by adopting a plurality of optics plates, the feasible light formation area source that is incident to light guide plate from light emitting diode.Yet the more optics plate of usage quantity can cause the processing procedure cost too high.Moreover light be by producing relaxation phenomenon behind a plurality of optics plates, problems such as also cause the briliancy of area source to descend, the light utilization ratio is low.
In addition, the researcher is arranged at the surface of above-mentioned light guide plate spraying diffusion particle, so that light guide plate can be brought into play the effect of diffusion sheet simultaneously, and the setting (can omit down diffusion sheet) of saving the optics plate.Yet the mode of spraying diffusion particle need be carried out the secondary processing step, and the diffusion particle that is sprayed at the light guide plate surface peels off because of the external force collision easily, causes the uneven problem of area source on the contrary.
Summary of the invention
The utility model technical issues that need to address have provided a kind of light guide plate, are intended to solve the above problems.
The utility model also provides the lighting device that adopts above-mentioned light guide plate.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
Light guide plate of the present utility model comprises: one first rete; Described first rete has one first refractive index; One second rete; Described second rete is arranged on this first rete, has an interface between this first rete and this second rete, be distributed with a plurality of diffusion particles in this second rete, and this second rete has one second refractive index; A plurality of leaded light microstructures; Described a plurality of leaded light microstructure is arranged on this first rete and is positioned at a side away from this interface; And a plurality of light harvesting microstructures; Described a plurality of light harvesting microstructure is arranged on this second rete and is positioned at a side away from this interface.
Lighting device of the present utility model comprises: an above-mentioned light guide plate and a light source; Described light source is arranged on a side of an incidence surface of this light guide plate.
Compared with prior art, the beneficial effects of the utility model are: light guide plate has diffusion particle, leaded light microstructure and light harvesting microstructure, can bring into play light diffusion and the optical effect that adds lustre to simultaneously; Use this light guide plate can bring into play multiple optical function, and can omit the usage quantity of optics plate, can reduce material cost; Adopt the lighting device of above-mentioned light guide plate to have the high light line utilization ratio, uniform surface light source can be provided; Above-mentioned manufacturing method of light conducting board can be made leaded light microstructure and light harvesting microstructure in processing procedure, and can be distributed with diffusion particle in light guide plate, and processing procedure is simple and cost of manufacture is low.
Description of drawings
Fig. 1 is the synoptic diagram of the light guide plate of the utility model one embodiment.
Fig. 2 is the synoptic diagram of the lighting device of the utility model one embodiment.
Fig. 3 is the process flow diagram of the manufacturing method of light conducting board of the utility model one embodiment.
Fig. 4 is the synoptic diagram of a kind of light guide plate manufacturing installation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
The utility model provides a kind of light guide plate, can bring into play good light diffusion and light enhancing effect simultaneously.
The utility model provides a kind of lighting device, has above-mentioned light guide plate, and saves the usage quantity of optics plate, and the area source of even and high briliancy can be provided.
The utility model provides a kind of manufacturing method of light conducting board, can form leaded light microstructure and light harvesting microstructure in processing procedure, can save the processing procedure cost.
Based on above-mentioned, the utility model proposes a kind of light guide plate, comprising: first rete, second rete, a plurality of leaded light microstructure and a plurality of light harvesting microstructure.First rete has first refractive index.Second rete is arranged on first rete.Has an interface between first rete and second rete.Be distributed with a plurality of diffusion particles in second rete.Second rete has second refractive index.The leaded light microstructure is arranged on first rete and is positioned at a side away from the interface.The light harvesting microstructure is arranged on second rete and is positioned at a side away from the interface.
The utility model proposes a kind of lighting device, comprising: above-mentioned light guide plate and light source.Light source is arranged at a side of the incidence surface of light guide plate.
The utility model proposes a kind of manufacturing method of light conducting board again.At first, provide first material, this first material has first refractive index.Then, provide second material, this second material has second refractive index, is distributed with a plurality of diffusion particles in second material.Afterwards, with first material with second material in being a light guide plate in the processing procedure via giving as security molded, first material forms first rete with a plurality of leaded light microstructures, second material forms second rete with a plurality of light harvesting microstructures, wherein, have an interface between first rete and second rete, the leaded light microstructure is formed on first rete and is positioned at a side away from the interface.The light harvesting microstructure is formed on second rete and is positioned at a side away from the interface.
In an embodiment of the present utility model, the first above-mentioned rete is identical with the material of second rete and be single rete, wherein, is distributed with diffusion particle in second rete and makes second rete have second refractive index.
In an embodiment of the present utility model, the first above-mentioned material is identical with the material of second material.
In an embodiment of the present utility model, the first above-mentioned refractive index is greater than this second refractive index.
In an embodiment of the present utility model, above-mentioned the leaded light microstructure and first rete are formed in one, and the leaded light microstructure has first refractive index identical with first rete, and first refractive index is greater than second refractive index.
In an embodiment of the present utility model, above-mentioned leaded light microstructure indent is in first rete.
In an embodiment of the present utility model, the section shape of above-mentioned leaded light microstructure is to be selected from square, rectangle, rhombus, semicircle, ellipse, triangle, waveform and combination thereof.
In an embodiment of the present utility model, above-mentioned the light harvesting microstructure and second rete are formed in one, and the light harvesting microstructure has second refractive index identical with second rete, and second refractive index is less than first refractive index.
In an embodiment of the present utility model, above-mentioned light harvesting microstructure protrudes in second rete.
In an embodiment of the present utility model, the section shape of above-mentioned light harvesting microstructure is to be selected from square, rectangle, rhombus, semicircle, ellipse, triangle, waveform and combination thereof.
In an embodiment of the present utility model, above-mentioned with first material with second material in moldedly comprising for the step of light guide plate via giving as security in the processing procedure: the first moulding rolling wheel is provided, have a plurality of first moulding microstructures, the first moulding microstructure is given as security for the surface of first rete and is pressed and formation leaded light microstructure; The second moulding rolling wheel is provided, has a plurality of second moulding microstructures, the second moulding microstructure is given as security for the surface of second rete and is pressed and formation light harvesting microstructure.
In an embodiment of the present utility model, the first above-mentioned moulding microstructure protrudes in the surface of the first moulding rolling wheel, and the second moulding microstructure indent is in the surface of the second moulding rolling wheel.
[light guide plate and lighting device]
Fig. 1 is the synoptic diagram of the light guide plate of the utility model one embodiment, has also illustrated the enlarged drawing of regional A among Fig. 1.Please refer to Fig. 1, light guide plate 100 comprises: first rete 110, second rete 120, a plurality of leaded light microstructure 130 and a plurality of light harvesting microstructure 140.First rete 110 has first refractive index n 1.Second rete 120 is arranged on first rete 110.Has an interface I between first rete 110 and second rete 120.Be distributed with a plurality of diffusion particle DP in second rete 120.Second rete 120 has second refractive index n 2.Leaded light microstructure 130 is arranged on first rete 110 and is positioned at a side away from interface I.Light harvesting microstructure 140 is arranged on second rete 120 and is positioned at a side away from interface I.
Referring again to Fig. 1, the material of first rete 110 and second rete 120 can be identical and be single rete.Make second rete 120 have second refractive index n 2 owing in second rete 120, being distributed with diffusion particle DP, and first rete 110 is not distributed with diffusion particle DP and make first rete 110 have first refractive index n 1.That is to say, can form this second rete 120, and make this interface I of generation between second rete 120 and first rete 110 via distribution diffusion particle DP in the subregion in single rete.
In another embodiment, also can make first rete 110 different, and form two retes separated from one another and that refractive index is different with the material of second rete 120.In the case, also can in second rete 120, add diffusion particle DP, further adjust the refractive index and the light scatter effect of second rete 120.
It should be noted that light guide plate 100 is made up of 110,120 of two retes of different refractivity, and first refractive index n 1 of first rete 110 is greater than second refractive index n 2 of second rete 120.According to the department in the optical principle like this law (Snell ' s law, be n1sin θ 1=n2sin θ 2) as can be known, when light incides the little medium of refractive index from the big medium of refractive index, when incident angle greater than critical angle, light can produce total reflection in that the big medium of refractive index (i.e. first rete 110) is inner.In other words, light can carry out good transmission in first rete 110, and the service efficiency of light is quite high, can effectively prevent the light leakage.
Particularly, diffusion particle DP is distributed in second rete 120.Because diffusion particle DP is not exposed to the outside of light guide plate 100,, can not produce the problem that diffusion particle DP peels off even light guide plate is subjected to the external force collision yet.Can guarantee to utilize diffusion particle DP scattered beam effectively.
In addition, please refer to Fig. 1, the above-mentioned leaded light microstructure 130 and first rete 110 can be formed in one, and leaded light microstructure 130 has first refractive index n 1 identical with first rete 110, and first refractive index n 1 is greater than second refractive index n 2.But leaded light microstructure 130 indents are in first rete 110.Thus, indent can not be subjected to the bump of external force and comes off in the leaded light microstructure 130 of first rete 110, can make light guide plate 100 keep good light-guiding function.Moreover the section shape of leaded light microstructure 130 as shown in Figure 1 is semicircle.Yet the section shape of leaded light microstructure 130 can also be other shape, for example is selected from square, rectangle, rhombus, ellipse, triangle, waveform (not illustrating) and combination thereof.
Referring again to Fig. 1, the light harvesting microstructure 140 and second rete 120 can be formed in one, and light harvesting microstructure 140 has second refractive index n 2 identical with second rete 120, and second refractive index n 2 is less than first refractive index n 1.Moreover light harvesting microstructure 140 can protrude in second rete 120, light is concentrated in this light harvesting microstructure 140.In addition, the section shape of light harvesting microstructure 140 as shown in Figure 1 is triangles.Yet the section shape of light harvesting microstructure 140 can also be other shape, for example is selected from semicircle, square, rectangle, rhombus, ellipse, waveform (not illustrating) and combination thereof.
Because light guide plate 100 has leaded light microstructure 130, light harvesting microstructure 140 and diffusion particle DP, so can bring into play light-guiding function simultaneously, as the function and of adding lustre to of prismatic lens as the light diffusion function of diffusion sheet as light guide plate.Therefore, use above-mentioned light guide plate 100 can replace the following diffusion sheet of prior art, following prismatic lens and last prismatic lens, and can reduce about 20% cost.
And above-mentioned light guide plate 100 can reduce from the directivity of the light of exiting surface outgoing, makes the equalizing light rays of outgoing.More specifically, leaded light microstructure 130 can make light conduction smoothly in light guide plate 100.Diffusion particle DP can spread light, to reach the effect with flaw point fuzzinessization, augmentation angle of visibility.Light harvesting microstructure 140 can be collected light, reaches light enhancing effect.
Fig. 2 is the synoptic diagram of the lighting device of the utility model one embodiment.Please refer to Fig. 2, lighting device 200 comprises: above-mentioned light guide plate 100 and light source 210.The detailed structure of light guide plate 100 is not repeated at this as mentioned above.Light source 210 is arranged on the side of the incidence surface 100a of light guide plate 100.Light guide plate 100 can have incidence surface 100a, reflective surface 100b and exiting surface 100c.Be distributed with a plurality of diffusion particle DP in second refractive index n, 2, the second retes 120 of first refractive index n 1 of first rete 110 greater than second rete 120.
Below with the optical path of general description light L in light guide plate 100.Please refer to Fig. 2, after incidence surface 100a enters light guide plate 100, in first rete 110, transmit from the light L of light source 210 outgoing.According to the principle of total reflection, light L can be big in refractive index (to carry out good transmission in first rete 110 of n1＞n2), and not to have the light leakage phenomena.
Then, when light L one touches leaded light microstructure 130, can be advanced toward interface I by 130 reflections of leaded light microstructure.Had incident angle by the light L of leaded light microstructure 130 reflection, therefore, when light L contact interface I, can reflect and enter in second rete 120 less than critical angle.
Continue it, the light L that enters second rete 120 can be by the diffusion particle DP institute scattering in second rete 120, and advances toward a plurality of different directions, shines then outside second rete 120.Diffusion particle DP can make light L spread, to reach the effect with flaw point fuzzinessization, augmentation angle of visibility.
Afterwards, the light L of outgoing outside second rete 120 can enter light harvesting microstructure 140 and carry out light and collect, and outgoing is outside light guide plate 100 again.Light harvesting microstructure 140 can be collected light, reaches light enhancing effect.
Because light guide plate 100 can reach conducting light simultaneously, spread light, make equalizing light rays and complex optics function such as add lustre to, so and the enough single light guide plate 100 of energy replace the optics plate with a plurality of different optical functions, and the usage quantity of minimizing optics plate (that is, can omit down diffusion sheet, following prismatic lens and last prismatic lens).Moreover light L can pass through less optics plate, thereby makes the briliancy of light L be unlikely to excessive attenuation, can promote the utilization ratio of light L.
In addition,, can reduce, make the light L homogenising of outgoing, and the area source of even and high briliancy can be provided from the directivity of the light L of exiting surface outgoing by leaded light microstructure 130, diffusion particle DP and light harvesting microstructure 140.Above-mentioned lighting device 200 can be applied in the multiple different industry, in display panels industry, Lighting Industry, green can the building.In lighting device 200, use above-mentioned light guide plate 100, can save the usage quantity of optics plate, the utilization ratio of lifting light, and then can reach the effect of environmental protection, carbon reduction.
[manufacturing method of light conducting board]
Fig. 3 is the process flow diagram of the manufacturing method of light conducting board of the utility model one embodiment.Fig. 4 is the synoptic diagram of a kind of light guide plate manufacturing installation of the utility model embodiment.The technical spirit place of the manufacturing method of light conducting board of please be jointly further understanding the utility model and being proposed with reference to Fig. 1, Fig. 3 and Fig. 4.
Please refer to Fig. 3, manufacturing method of light conducting board 300 may further comprise the steps S310～S330.At first, in step S310, provide first material, this first material has first refractive index.Then, in step S320, provide second material, this second material has second refractive index, and is distributed with a plurality of diffusion particles in second material.Afterwards, in step S330, with first material with second material in being a light guide plate in the processing procedure via giving as security molded, first material forms first rete with a plurality of leaded light microstructures, second material forms second rete with a plurality of light harvesting microstructures.
More specifically, first material can be identical material with second material.Make second material have second refractive index owing in second material, being distributed with diffusion particle, and first material is not distributed with diffusion particle and make first material have first refractive index.Yet first material and second material also can be unlike material, have different refractive indexes separately, at this moment, add refractive index and the optics diffusion effect that diffusion particle can further be adjusted this second material in second material.
Referring again to Fig. 1 and Fig. 3, prepared light guide plate 100 has an interface I between first rete 110 and second rete 120, and leaded light microstructure 130 is formed on first rete 110 and is positioned at a side away from interface I.Light harvesting microstructure 140 is formed on second rete 120 and is positioned at a side away from interface I.
Please refer to Fig. 1 and Fig. 4 uses light guide plate manufacturing installation 400 to make the process of light guide plate 100 with further understanding.Light guide plate manufacturing installation 400 can comprise: first raw material tank 410, second raw material tank 420, first heating spiral rod 430, second heating spiral rod 440, add pressing die head 450, moulding rolling wheel 460a～460c, wheel 470a～470b and conveying roller 480 are drawn in holder.Below, cooperate Fig. 4 that the making flow process of light guide plate 100 is described.
At first, the first material M1 (for example particle of polymethylmethacrylate (PMMA)) is placed in first raw material tank 410, the first material M1 has first refractive index n 1, and follow-up is first rete 110 that is used for forming as shown in Figure 1.
Then, the second material M2 is placed in second raw material tank 420, the second material M2 has second refractive index n 2, and is distributed with a plurality of diffusion particle DP among the second material M2.The second material M2 is follow-up to be second rete 120 that is used for forming as shown in Figure 1.The second material M2 can use and the similar and different optical material of the refractive index of the first material M1, can obtain second refractive index n 2 less than first refractive index n 2 after mixing a plurality of diffusion particle DP.
Continue it, the first material M1 is transported to first heating spiral rod 430 to carry out heat fused, the second material M2 that is mixed with diffusion particle DP is transported to second heating spiral rod 440 to carry out heat fused.The first material M1 after the fusing and the second material M2 can output to the external world via adding pressing die head 450, and in adding pressing die head 450, shunt according to thickness, utilize moulding rolling wheel 460a～460c in processing procedure, the first material M1 and the second material M2 to be given as security the molded light guide plate 100 that is then.
More specifically, please refer to Fig. 1 and Fig. 4, utilize the move left and right (being the left and right directions among Fig. 4) of moulding rolling wheel 460a, can control first rete 110 of light guide plate 100 and the extrusion thickness of second rete 120.In addition, the moulding rolling wheel 460c with a plurality of moulding microstructure 460c ' can give as security pressure and form leaded light microstructure 130 for the surface of first rete 110.Moulding rolling wheel 460b with a plurality of moulding microstructure 460b ' can give as security for the surface of second rete 120 and press and formation light harvesting microstructure 140.
As shown in Figure 4, the surface working of moulding rolling wheel 460c can be become the moulding microstructure 460c ' of evagination, that is moulding microstructure 460c ' can protrude in the surface of moulding rolling wheel 460c.The section shape of moulding microstructure 460c ' can be semicircle, or arbitrary shape such as square, rectangle, rhombus, ellipse, triangle, waveform.When first rete 110 is subjected to the signature pressure of moulding rolling wheel 460c, promptly can form concave inward structure (corresponding to the outer male structure of moulding rolling wheel 460c) on the surface of first rete 110, promptly above-mentioned indent shown in Figure 1 is in the leaded light microstructure 130 of first rete 110.
In other embodiments, also can make the moulding microstructure 460c ' of moulding rolling wheel 460c become concave inward structure, and then form outstanding leaded light microstructure (not illustrating) on the surface of first rete 110 accordingly.The moulding microstructure on the surface of moulding rolling wheel 460c can be outer male structure or concave inward structure, the design needs can be seen and suitable collocation can be carried out, being not limited only to above-mentioned example, also can be that a part is the combination of outer male structure for concave inward structure, another part.
In addition, as shown in Figure 4, the surface working of moulding rolling wheel 460b can be become the moulding microstructure 460b ' of indent, that is, moulding microstructure 460b ' but indent in the surface of moulding rolling wheel 460b.The section shape of moulding microstructure 460b ' can be triangle, or arbitrary shape such as square, rectangle, rhombus, ellipse, triangle, semicircle, waveform.
When second rete 120 is subjected to the signature pressure of moulding rolling wheel 460b, male structure (corresponding to the concave inward structure of moulding rolling wheel 460b) outside promptly can forming, the promptly above-mentioned light harvesting microstructure 140 that protrudes in second rete 120 shown in Figure 1 on the surface of second rete 120.Be similar to the explanation of moulding rolling wheel 460c, also can be according to the shape of the moulding microstructure 460b ' on the surface of design needs change moulding rolling wheel 460b.
Please refer to Fig. 4, it is the pulling force that drags guiding tabula rasa 100 in order to provide that wheel 470a～470b is drawn in holder, and light guide plate 100 can be transmitted on conveying roller 480.The method for making of above-mentioned light guide plate 100 can be made the leaded light microstructure 130 and light harvesting microstructure 140 of light guide plate 100 simultaneously in one processing procedure, and can control the thickness of light guide plate 100, therefore, has the competitive edge of saving the fabrication steps cost.
In sum, light guide plate of the present utility model, lighting device and manufacturing method of light conducting board have the following advantages at least:
Light guide plate is made up of the rete of two different refractivities, utilizes the optical principle of total reflection, and can promote the transfer efficiency of light in light guide plate.In addition, light guide plate has diffusion particle, leaded light microstructure and light harvesting microstructure, can bring into play light diffusion and the optical effect that adds lustre to simultaneously.Therefore, use this light guide plate can omit the usage quantity of optics plate, can reduce material cost.Moreover, adopt the lighting device of above-mentioned light guide plate can have the high light line utilization ratio, uniform surface light source can be provided.And above-mentioned manufacturing method of light conducting board can be made leaded light microstructure and light harvesting microstructure in processing procedure, and can be distributed with diffusion particle in light guide plate, and processing procedure is simple and cost of manufacture is low.
Though the utility model discloses as above with embodiment; right its is not in order to limit the utility model; has common knowledge under any in the technical field; in the spirit and scope that do not break away from the utility model; when can doing a little change and retouching, so the protection domain of the utility model is when looking being as the criterion that the appended claim protection domain defined.
Claims (10)
1. a light guide plate is characterized in that comprising: one first rete; Described first rete has one first refractive index; One second rete; Described second rete is arranged on this first rete, has an interface between this first rete and this second rete, be distributed with a plurality of diffusion particles in this second rete, and this second rete has one second refractive index; A plurality of leaded light microstructures; Described a plurality of leaded light microstructure is arranged on this first rete and is positioned at a side away from this interface; And a plurality of light harvesting microstructures; Described a plurality of light harvesting microstructure is arranged on this second rete and is positioned at a side away from this interface.
2. light guide plate according to claim 1 is characterized in that: the material of this first rete and this second rete is identical and be single rete, is distributed with those diffusion particles in this second rete and makes this second rete have this second refractive index.
3. light guide plate according to claim 1 is characterized in that: this first refractive index is greater than this second refractive index.
4. light guide plate according to claim 1 is characterized in that: those leaded light microstructures and this first rete are formed in one, and those leaded light microstructures have this first refractive index identical with this first rete, and this first refractive index is greater than this second refractive index.
5. light guide plate according to claim 1 is characterized in that: those leaded light microstructure indents are in this first rete.
6. light guide plate according to claim 1 is characterized in that: the section shape of those leaded light microstructures is to be selected from square, rectangle, rhombus, semicircle, ellipse, triangle, waveform and combination thereof.
7. light guide plate according to claim 1 is characterized in that: those light harvesting microstructures and this second rete are formed in one, and those light harvesting microstructures have this second refractive index identical with this second rete, and this second refractive index is less than this first refractive index.
8. light guide plate according to claim 1 is characterized in that: those light harvesting microstructures protrude in this second rete.
9. light guide plate according to claim 1 is characterized in that: the section shape of those light harvesting microstructures is to be selected from square, rectangle, rhombus, semicircle, ellipse, triangle, waveform and combination thereof.
10. a lighting device is characterized in that: comprising: as each a described light guide plate and a light source among the claim 1-9; Described light source is arranged on a side of an incidence surface of this light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200541019U CN201974542U (en) | 2011-03-03 | 2011-03-03 | Light guiding board and illuminating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200541019U CN201974542U (en) | 2011-03-03 | 2011-03-03 | Light guiding board and illuminating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974542U true CN201974542U (en) | 2011-09-14 |
Family
ID=44579642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200541019U Expired - Lifetime CN201974542U (en) | 2011-03-03 | 2011-03-03 | Light guiding board and illuminating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201974542U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102620235A (en) * | 2011-12-20 | 2012-08-01 | 友达光电股份有限公司 | Light extraction film and light emitting element using the same |
| CN109358387A (en) * | 2018-12-02 | 2019-02-19 | 深圳市天诺通光电科技有限公司 | U-shaped structure high PS diffuser plate and its manufacture craft and application thoroughly |
| CN114488606A (en) * | 2020-10-23 | 2022-05-13 | 合肥京东方显示技术有限公司 | Display device |
-
2011
- 2011-03-03 CN CN2011200541019U patent/CN201974542U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102620235A (en) * | 2011-12-20 | 2012-08-01 | 友达光电股份有限公司 | Light extraction film and light emitting element using the same |
| CN109358387A (en) * | 2018-12-02 | 2019-02-19 | 深圳市天诺通光电科技有限公司 | U-shaped structure high PS diffuser plate and its manufacture craft and application thoroughly |
| CN114488606A (en) * | 2020-10-23 | 2022-05-13 | 合肥京东方显示技术有限公司 | Display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102073092A (en) | Light guide plate, illuminating device and method for manufacturing light guide plate | |
| CN101126821B (en) | Optical board and the backlight module group using same | |
| CN202177719U (en) | Light guide plate, backlight comprising same, liquid crystal display panel and liquid crystal display | |
| CN102147488A (en) | Diffusion plate of multilayered diffusion particle layer | |
| CN201974542U (en) | Light guiding board and illuminating apparatus | |
| CN101520522B (en) | Integrated brightening diffusion sheet | |
| CN102967896A (en) | Light guide plate, backlight module and display device | |
| US20200124919A1 (en) | Backlight module and liquid crystal display device | |
| CN111458774A (en) | Multilayer superposed polymer composite light diffusion plate and production process thereof | |
| CN101329416B (en) | Preparation method of optical diffusion thin film | |
| CN102182964A (en) | Backlight module and liquid crystal display | |
| CN201803313U (en) | Diffusion plate and backlight module group adopting the same | |
| CN103925522A (en) | Backlight module and display device | |
| CN105182455A (en) | Production method of diffusion plate | |
| CN102707371A (en) | Light guide plate | |
| CN101792645A (en) | Micro-structure adhesive tape | |
| CN203224640U (en) | Light guide plate with excellent light guiding properties | |
| CN105301692A (en) | Light guide plate with high light utilization rate, and design method thereof | |
| CN208737151U (en) | Backlight module and liquid crystal display device | |
| CN207181734U (en) | The multi-functional clad plate of superelevation light transmission rate high diffusivity | |
| CN203224641U (en) | Heat-resistant light guide plate | |
| CN204903794U (en) | Diffuser plate | |
| CN205539551U (en) | Two sides has diffuser plate of prism micro -structure | |
| CN201795430U (en) | Bottom lighting light guide plate of LED backlight module | |
| CN104597556A (en) | Light guide plate, backlight module and liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |