CN101458358B - Multi-axial light pipe module - Google Patents
Multi-axial light pipe module Download PDFInfo
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- CN101458358B CN101458358B CN200710195773XA CN200710195773A CN101458358B CN 101458358 B CN101458358 B CN 101458358B CN 200710195773X A CN200710195773X A CN 200710195773XA CN 200710195773 A CN200710195773 A CN 200710195773A CN 101458358 B CN101458358 B CN 101458358B
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Abstract
The invention provides a multiaxial light pipe module, comprising a light pipe, a luminescence unit, a display unit and a light guiding unit; wherein the light pipe is provided with a luminescence part and a bending part which is connected with the luminescence part; the luminescence part is provided with at least two axial luminous surfaces to generate at least two axial luminous effects; the display unit is provided with a first axial display layer corresponding to the first axial luminous surface and a second axial display layer corresponding to the second axial luminous surface; the light guiding unit is arranged on the luminescence part to improve the luminous efficiency of the luminescence part; the luminous and display effects of the multiple axial luminous surfaces of the luminescence part are enhanced by the display unit and the light guiding unit; therefore, a user can observe luminous display from different axial planes easily and effects of alert messages and indication are achieved.
Description
Technical field
The present invention relates to a kind of light pipe module, refer to a kind of at least two axial light-emitting areas that on the illuminating part of light pipe, form especially, by correspondence the display unit of axial light-emitting area with cooperating of light element formed multiaxis to light pipe module.
Background technology
Day different development along with electronics, information and communication science and technology, mobile communication, information electronic product have developed into the essential product of modern's life, special electronic product as miniaturization, such as: the household appliances that mobile phone, PDA(Personal Digital Assistant), telephone device, videodisc device etc. are relevant.Above-mentioned Related product, device all have keyboard and the static indication system that is used to import message, control and operation.To make things convenient for device to use under rather dark not clear environment, therefore, these electronic products are need have usually to show or deixis.Way commonly used, be that one or more luminotrons and luminous lighting assembly are set on the circuit board of electronic installation, this luminous lighting assembly is can emit beam irradiation keyboard or the display panel back side, so as to can be on keytop clearly shows character or Warning Mark.Though and this technology can overcome the indication problem in dim not clear environment, yet its luminous intensity is a skewness, bright especially near the light emitting source part, and has luminous dazzling phenomenon, and is in addition, away from the light emitting source part, too dim again.
Therefore, the ray guidance that light pipe can be used for light source is sent is to the precalculated position, perhaps convert the secondary light source of given shape to, solving the problem of above-mentioned light source deficiency, and can be widely used in the keyboard back light system of various mobile phones or personal digital assistant.Simultaneously, also can be applied in the shape energy indication mechanism of electronic product, communication apparatus.
See also Fig. 1, be the synoptic diagram of known guiding device.This guiding device is to comprise: a light pipe 10a and is located at the optical lens 20a of light pipe 10a one end.This light pipe 10a presents one circular-arcly, and it has one and receives light end 11a, a luminous end 12a and and be connected in the link 13a that receives light end 11a and luminous end 12a.Wherein, link 13a is a crooked arcuation, in order to change the direction of light conduction.Wherein, light pipe 10a utilize to receive light end 11a receiving light, and light transfers to luminous end 12a via link 13a, and reaches leaded light and illumination effect.
Yet, when light in the middle of the transmission course of light pipe 10a, when light conduction refracts to this link 13a, owing to its crooked arcuation causes too much fiber-loss, cause light to come out, thereby reduce the utilization factor of light significantly from the surface scattering that link 13a penetrates light pipe 10a.
This known guiding device must increase the light sources consume degree, just certain luminous intensity can be arranged, and the battery supply life cycle of electronic product is shortened, and simultaneously, increases the heating effect of product.Therefore, certainly will to propose to improve the structural design of optical loss degree, to improve the utilization ratio of light.
See also Fig. 2 to Fig. 4, for the known stereographic map that is used for the guiding device of mobile phone 1b, be positioned at the guiding device 10b stereographic map of mobile phone 1b, and the synoptic diagram that cooperates with luminescence component 30b of this guiding device 10b, circuit board 20b.Wherein, guiding device 10b provides the illumination effect of mobile phone 1b when charging or standby display signal.As shown in the figure, in principle, guiding device 10b is a light pipe structure, is to be located in the mobile phone 1b, and this guiding device 10b is arranged on a circuit board 20b and the corresponding luminescence component 30b.Guiding device 10b comprises: the receiving end 12b, that a body 11b, is located at body 11b bottom is located at the luminous end 13b at body 11b top, and a link 14b between between receiving end 12b and luminous end 13b.Receiving end 12b receives light-emitting line corresponding to this luminescence component 30b, and by the guiding of link 14b, it is luminous to make that light can carry out at luminous end 13b, so that the effect of the luminous demonstration of user to be provided.
Yet, can find out that from the design of guiding device 10b it only has the luminous demonstration of single axial.In other words, only can pass through the luminous display effect of the single axial face (as the front) of mobile phone 1b, to reach luminous suggesting effect.Because the relation of visual angle angle, when mobile phone 1b rotates to certain special angle, be subject to the restriction of reflection angle angle, the situation that causes surface brightness to descend, thereby the effect that can't carry out luminous demonstration easily from another axial vane surface (as the side), the inconvenience when causing the user to observe.
From the above mentioned as can be known, known guiding device is on reality is used, still have inconvenient and the disappearance existence, in view of this, must design a kind of can the design, to improve known relation because of the visual angle angle in the light pipe structure of multiaxis to luminous demonstration, and only can be in the luminous demonstration of a certain axial vane surface, cause and use inconvenient shortcoming, can reduce the high optical loss rate of light pipe when leaded light simultaneously, and then improve the luminescence efficiency of light pipe.
Summary of the invention
Fundamental purpose of the present invention be the design a kind of multiaxis to light pipe module, it is by in the light pipe structure, the multiaxis of illuminating part is to the design of light-emitting area, make light pipe structure can have most luminous axial vane surfaces simultaneously, to produce illumination effect at different axial surfaces respectively, under the cooperation of display unit, present multiaxis to luminous demonstration, under the situation that is not subject to the visual angle angle, provide the never coaxial easily plane of user to observe luminous demonstration, reach alert message, indicating effect.
Another object of the present invention is to: in the design by this light pipe structure, by the design of its warp architecture, preposition or zone can at random photoconduction be caused, simultaneously, increase and reduce the high optical loss rate of light source when light pipe is guided, with the luminescence efficiency of effective raising light pipe.
A further object of the present invention is: utilize light element design, and under the cooperation that the warp architecture of light pipe changes, can promote leaded light efficient significantly, increase illumination effect.
In order to reach above-mentioned purpose, technical solution of the present invention is:
A kind of multiaxis to light pipe module, comprising: a light pipe, a display unit and a light element.Light pipe has the bend that an illuminating part and connects illuminating part, and illuminating part has the first axial light-emitting area and the second axial light-emitting area.Display unit is the illuminating part corresponding to light pipe, and display unit has first and second axial display layer, the corresponding first axial light-emitting area of the first axial display layer, the corresponding second axial light-emitting area of this second axial display layer is in order to the light source that shows that respectively first and second axial light-emitting area is sent.Light element is to be arranged on the illuminating part of light pipe, in order to improve the luminescence efficiency of illuminating part.
A kind of multiaxis to light pipe module, comprising: a light pipe, a light element and a display unit.Light pipe is a crooked arcuation and has an illuminating part that illuminating part has at least two axial light-emitting areas; Light element is arranged on the illuminating part of light pipe and corresponding at least one axial light-emitting area of illuminating part, to improve the luminescence efficiency of illuminating part; Display unit is corresponding to each axial light-emitting area of illuminating part, with the light source that shows that axial light-emitting area is sent.
The most shafts of the illuminating part by above-mentioned light pipe to reach multiaxis to illumination effect, simultaneously, cooperates light element and display unit to light-emitting area, with leaded light, the luminescence efficiency that increases light pipe significantly, and improves the effect of luminous demonstration.
The present invention is by in the light pipe structure, the design of this bend, illuminating part, and under the cooperation of light element and display unit, make this multiaxis to light pipe module have following characteristics:
1, passes through the multiple optical axis direction face of light pipe structure, to produce illumination effect at different axial surfaces respectively.And cooperate display unit and present multiaxis to luminous demonstration, the user can never coaxial easily Plane Angle observe luminous demonstration, reaches alert message and indicating effect.
2, by the curved design of light pipe structure, can at random light source be directed to preposition or zone.Simultaneously, reduce the light loss rate of light source in light pipe, improve the luminescence efficiency of light pipe.
3, utilize the variation of the warp architecture of light element design and light pipe, can effectively promote leaded light efficient.
4, utilize in the display unit, the relation between the bend of this axial display layer and this light pipe structure, to increase the efficient of luminous demonstration, allow the user in disalignment to observed to a preferable luminous demonstration.
Description of drawings
Fig. 1 is the synoptic diagram of known guiding device;
Fig. 2 is the known stereographic map that is used for the guiding device of mobile phone;
Fig. 3 is among Fig. 2, is positioned at the stereographic map of the guiding device of mobile phone;
Fig. 4 is among Fig. 3, guiding device, circuit board and the synoptic diagram of luminescence component when cooperating;
Fig. 5 for multiaxis of the present invention to the stereographic map of light pipe module first embodiment;
Fig. 6 for multiaxis of the present invention to the front view of light pipe module first embodiment;
Fig. 7 for multiaxis of the present invention to the vertical view of light pipe module first embodiment;
Fig. 8 for multiaxis of the present invention to the stereographic map of light pipe module second embodiment;
Fig. 9 for multiaxis of the present invention to the front view of light pipe module second embodiment;
Figure 10 for multiaxis of the present invention to the vertical view of light pipe module second embodiment.
The primary clustering symbol description
[known]
The 10a light pipe
11a receives light end 12a luminous end
The 13a link
The 20a optical lens
The 1b mobile phone
The 10b guiding device
13b luminous end 14b link
The 20b circuit board
The 30b luminescence component
[the present invention]
2 light pipe modules
20 light pipe structure
21 acceptance divisions, 210 receiver sections
22 bends, 220 bending sections
23 illuminating parts
231 first axial light-emitting area 232 second axial light-emitting areas
24 display units
241 first axial display layer 242 second axial display layers
25 light elements
251 first leaded light sections, 252 second leaded light sections
30 luminescence components
C white paint film C ' reflectance coating
The I spacing distance
L shows length
R, R ' circular arc curvature
Embodiment
Reach technology, means and the effect that predetermined purpose is taked in order further to understand the present invention, see also following about detailed description of the present invention and accompanying drawing, believe purpose of the present invention, feature and characteristics, go deep into and concrete understanding when getting one thus, yet institute's accompanying drawing only provides reference and explanation usefulness, is not to be used for the present invention is limited.
See also Fig. 5 to Figure 10 of the present invention and explanation thereof.
See also Fig. 5 to Fig. 7, for multiaxis of the present invention to stereographic map, front view and the vertical view of light pipe module first embodiment.Learn that from figure this light pipe module 2 comprises: a light pipe structure 20, a display unit 24 corresponding to this light pipe structure 20, and a light element 25 that is arranged on this light pipe structure 20.
In the embodiments of the invention, this light pipe structure 20 has an acceptance division 21, a bend 22 and an illuminating part 23.This acceptance division 21 has two receiver sections 210, and the corresponding discriminably luminescence component 30 in the surface of each receiver section 210 is in order to receive the light source that luminescence component 30 is sent.This bend 22 is connected between acceptance division 21 and the illuminating part 23, and in this enforcement, this bend 22 is a circular shape, and has two parallel to each other and bending sections 220 at interval, and a side of each bending section 220 is each receiver section 210 that is connected in acceptance division 21.By the design of bend 22, make light pipe structure 20 can at random extend to preposition or zone, the light source that acceptance division 21 is received is sent to precalculated position or zone.
Yet the shape of bend 22 only is a preferred embodiment, and the present invention does not limit the shape of bend 22, and the deviser can at random carry out the change of shape with bend 22 according to conditions of demand, makes light source can be directed to the position or the zone of expectation.
In addition, illuminating part 23 is extended to form by bend 22, and in the present embodiment, illuminating part 23 is to extend from the opposite side of two bending sections 220 by bend 22 respectively to form.In design of the present invention, light pipe structure 20 can be passed through illuminating part 23, and sends the illuminating source of most predetermined axial vane surfaces.In the present embodiment, illuminating part 23 is defined has at least two axial light-emitting areas, to produce the luminous of at least two axial vane surfaces.In the preferable design of present embodiment, illuminating part 23 can have one first axial light-emitting area 231 and one second axial light-emitting area 232.
Learn clearly that from Fig. 6 first and second axial light-emitting area the 231, the 232nd can be perpendicular to one another, with the clear light-emitting area that presents two vertical axials; Yet this is a preferred embodiment, and non-limiting this first and second axial light-emitting area 231,232 formed angle angles.
When luminescence component 30 sends light source to light pipe structure 20, utilize the surface of each receiver section 210 to receive light source; Then, the circular arc design by by the bending section 220 of bend 22 makes light source can at random be led to user's institute's preposition or zone; At last, light source is directed to the illuminating part 23 that bending section 220 is extended to form, and first and second the axial light-emitting area 231,232 by illuminating part 23, make light source from the different axial vane surfaces of illuminating part 23, to send, make light pipe structure 20 present the illumination effect of at least two different axial vane surfaces.
Wherein, this first axial display layer 241 can be defined by a forward display surface, this second axial display layer 242 can be defined by a side direction display surface, the user is optionally by the wherein display surface of this forward or side direction display surface, observe display light source easily, and reach alert message, indicating effect.
Among the present invention, display unit 24 can be arranged on the housing (figure does not show), and display unit 24 is the transparent membranes that have in order to display light source.In the present embodiment, the axial display layer the 241, the 242nd of first and second of display unit 24 is respectively a transparent membrane, be to utilize printing or other similar fashion to be arranged on the housing, to provide light source to penetrate, the multiaxis that makes the illuminating part 23 of light pipe structure 20 be sent is able to be revealed via first and second axial display layer 241,242 to light source, reaches the display effect of many axial vane surfaces.
In addition, this bend 22 has two bending sections 220, is parallel to each other and the interval.Wherein, has a spacing distance I between these two bending sections, 220 outer rims, the first axial display layer 241 is except corresponding to the first axial light-emitting area 231, and the first axial display layer 241 can extend one further and show length L, this demonstration length L is the spacing distance I corresponding to this two bending section 220, make the light source that penetrates out from this two bending section 220 can be shown on the first axial display layer 241,, reduce the waste of optical loss to increase the luminous display effect of the first axial display layer 241.
In addition, because light source is in the leaded light process of light pipe structure 20, light source must cause high optical loss rate when bend 22.In order to improve the problem of light source in the high optical loss rate of bend 22, especially, light pipe structure 20 has a reflection means that is used to increase the source reflection degree, is that the part at bend 22 designs, and wherein, reflection means is as follows:
(1), respectively on the surface of bending section 220, be coated with a white paint film C or reflectance coating C ', make light when passing through this bend 22, can carry out the refraction of light, the effect of light reflection significantly, directly penetrate bend 22 surfaces to reduce light, increase light source in the degree of reflection of the bending section 220 of bend 22, reduce light and directly penetrate bending section 220, cause the optical loss rate too high.
(2), except utilizing the plated film mode, also the curvature of each bending section 220 of this bend 22 can be designed to one in order to increase the circular arc curvature R of source reflection degree, wherein, the conditions of demand that this circular arc curvature R can look the deviser are carried out curvature and at random change.Therefore, the variation of circular arc curvature R by bending section 220 makes light source via the sweep of light pipe structure 20 time, carries out the effect of light reflection or refraction significantly, minimizing light directly penetrates into the surface of bend 22, increases light source in the degree of reflection of this bend 22.
See also Fig. 8 to Figure 10, for multiaxis of the present invention to stereographic map, front view and the vertical view of second embodiment of light pipe module.Learn that from figure the main difference of second embodiment and first embodiment is:
In the illuminating part 23 of light pipe structure 20, except on the first axial light-emitting area 231, being provided with the first leaded light section 251, light element 25 also has one second leaded light section 252, be the surface and the relative second axial light-emitting area 232 that is arranged at illuminating part 23, the structure that the second leaded light section 252 is had is identical with this first leaded light section 251, similarly, can increase the light guide effect of light source, improve its luminescence efficiency in the second axial light-emitting area 232.So that the luminescence efficiency unanimity of first and second axial light-emitting area 231,232.
In addition, part at bend 22, it is circular arc curvature R part with first embodiment of bending section 220, change to another bigger circular arc curvature R ', similarly, because of the bigger design of circular arc curvature R ', make light source row when sweep, can improve directly penetrating its surperficial probability, and reduce too high optical loss rate, increase source reflection or refract to the probability of illuminating part 23.The multiaxis that is reached at second embodiment to luminous and display efficiency is also identical with the effect that first embodiment is reached.
Comprehensively above-mentioned, the present invention is by in the light pipe structure, the design of this bend, illuminating part, and under the cooperation of light element and display unit, make this multiaxis to light pipe module have following characteristics:
1, passes through the multiple optical axis direction face of light pipe structure, to produce illumination effect at different axial surfaces respectively.And cooperate display unit and present multiaxis to luminous demonstration, the user can never coaxial easily Plane Angle observe luminous demonstration, reaches alert message and indicating effect.
2, by the curved design of light pipe structure, can at random light source be directed to preposition or zone.Simultaneously, reduce the light loss rate of light source in light pipe, improve the luminescence efficiency of light pipe.
3, utilize the variation of the warp architecture of light element design and light pipe, can effectively promote leaded light efficient.
4, utilize in the display unit, the relation between the bend of this axial display layer and this light pipe structure, to increase the efficient of luminous demonstration, allow the user in disalignment to observed to a preferable luminous demonstration.
The above; only be the detailed description of one the specific embodiment of the best of the present invention and graphic; only feature of the present invention is not limited thereto; be not in order to restriction the present invention; all scopes of the present invention should be as the criterion with the protection domain of claim; all closing in the embodiment of the spirit variation similar of the protection domain of claim of the present invention with it; all should be contained in the category of the present invention; anyly be familiar with this skill person in the field of the invention, can think easily and variation or modify the protection domain that all can be encompassed in claim of the present invention.
Claims (12)
- A multiaxis to light pipe module, it is characterized in that, comprising:One light pipe has the bend that an illuminating part and connects this illuminating part, and this illuminating part has the one first axial light-emitting area and the second axial light-emitting area;One display unit, have one first axial display layer and one second axial display layer, this first axial display layer is to should the first axial light-emitting area, and this second axial display layer is to should the second axial light-emitting area, with the light source that shows that respectively this first and second axial light-emitting area is sent; AndOne light element, it is arranged on this illuminating part, to improve the luminescence efficiency of this illuminating part;Described multiaxis to light pipe module, it is by in the light pipe structure, the multiaxis of illuminating part is to the design of light-emitting area, make light pipe structure can have most luminous axial vane surfaces simultaneously, to produce illumination effect at different axial surfaces respectively, under the cooperation of display unit, present multiaxis to luminous demonstration, under the situation that is not subject to the visual angle angle, provide the never coaxial easily plane of user to observe luminous display effect, by the curved design of light pipe structure, can at random light source be directed to preposition or zone, reduce the light loss rate of light source light pipe simultaneously;This light element has one first leaded light section, it is arranged at this illuminating part and with respect to the surface of this first axial light-emitting area, this light element has one second leaded light section, it is arranged at this illuminating part and with respect to the surface of this second axial light-emitting area, simultaneously, this bend has the bending section of two parallel interval, and the first or second axial display layer is to extend and corresponding to this two bending section;Multiaxis is to light pipe, make light pipe structure can have most luminous axial vane surfaces simultaneously, to produce illumination effect at different axial surfaces respectively, under the cooperation of display unit, present multiaxis to luminous demonstration, under the situation that is not subject to the visual angle angle, provide the never coaxial easily plane of user to observe luminous display effect, curved design by light pipe structure, can at random light source be directed to preposition or zone, reduce the light loss rate of light source light pipe simultaneously, improve luminescence efficiency, guide efficient, increase luminous display efficiency.
- 2. multiaxis as claimed in claim 1 to light pipe module, it is characterized in that this light pipe has a reflection means that is used to increase the source reflection degree.
- 3. multiaxis as claimed in claim 2 to light pipe module, it is characterized in that this reflection means is: the surface of the bend of this light pipe is coated with a white paint film, in order to increase light source in the degree of reflection of this bend.
- 4. multiaxis as claimed in claim 2 to light pipe module, it is characterized in that this reflection means is: the bend of this light pipe has one in order to increase the circular arc curvature of source reflection degree.
- 5. multiaxis as claimed in claim 4 to light pipe module, it is characterized in that this first leaded light section has a leaded light microstructure array.
- 6. multiaxis as claimed in claim 1 to light pipe module, it is characterized in that this second leaded light section has a leaded light microstructure array.
- 7. multiaxis as claimed in claim 1 to light pipe module, it is characterized in that this first and second axial display layer is respectively a transparent membrane, penetrate in order to light source to be provided.
- 8. multiaxis as claimed in claim 1 to light pipe module, it is characterized in that this light pipe has an acceptance division that is connected in this bend, in order to receive a light source.
- A multiaxis to light pipe module, it is characterized in that, comprising:One light pipe is a crooked arcuation, and this light pipe has an illuminating part, and this illuminating part has at least two axial light-emitting areas;One light element is arranged on this illuminating part and corresponding at least one axial light-emitting area, to improve the luminescence efficiency of this illuminating part; AndOne display unit is corresponding to this axial light-emitting area, with the light source that shows that each axial light-emitting area is sent;One multiaxis is to light pipe, make light pipe structure can have most luminous axial vane surfaces simultaneously, to produce illumination effect at different axial surfaces respectively, under the cooperation of display unit, present multiaxis to luminous demonstration, under the situation that is not subject to the visual angle angle, provide the never coaxial easily plane of user to observe luminous display effect, curved design by light pipe structure, can at random light source be directed to preposition or zone, reduce the light loss rate of light source light pipe simultaneously, improve luminescence efficiency, guiding efficient, increase luminous display efficiency;Light element has at least two leaded light sections, each leaded light section is to be arranged at this illuminating part surface and each axial light-emitting area relatively, this display unit has at least two axial display layers, corresponding each the axial light-emitting area of each axial display layer, light pipe has a bend that is connected in this illuminating part, this bend has the bending section of two parallel interval, and an axial display layer wherein is to extend and corresponding to this two bending section.
- 10. multiaxis as claimed in claim 9 to light pipe module, it is characterized in that this light element has a leaded light section that is arranged at this illuminating part surface and at least one relatively axial light-emitting area, this leaded light section has a leaded light microstructure array.
- 11. multiaxis as claimed in claim 9 to light pipe module, it is characterized in that each axial display layer is a transparent membrane, penetrate so that light source to be provided.
- 12. multiaxis as claimed in claim 9 to light pipe module, it is characterized in that this light pipe has an acceptance division that is connected in this bend, this acceptance division has two receiver sections that are connected to this bending section, in order to receive a light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710195773XA CN101458358B (en) | 2007-12-13 | 2007-12-13 | Multi-axial light pipe module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710195773XA CN101458358B (en) | 2007-12-13 | 2007-12-13 | Multi-axial light pipe module |
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| Publication Number | Publication Date |
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| CN101458358A CN101458358A (en) | 2009-06-17 |
| CN101458358B true CN101458358B (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710195773XA Active CN101458358B (en) | 2007-12-13 | 2007-12-13 | Multi-axial light pipe module |
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| CN (1) | CN101458358B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782806B (en) * | 2014-12-26 | 2019-11-19 | 博西华电器（江苏）有限公司 | Household electrical appliance |
| CN104613417A (en) * | 2015-02-05 | 2015-05-13 | 成都市宏山科技有限公司 | Light transferring pole with low light transmission loss |
| CN106939990A (en) * | 2016-01-05 | 2017-07-11 | 欧司朗有限公司 | Light-emitting device for vehicle |
| CN110778970B (en) * | 2019-11-11 | 2020-10-16 | 中国十九冶集团有限公司 | Light guide pipe elbow with reinforcing sleeve cage and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245905A (en) * | 1998-08-20 | 2000-03-01 | 松下电器产业株式会社 | Lighting unit and its liquid crystal display adopting one |
| US6820993B1 (en) * | 2003-08-20 | 2004-11-23 | Toppoly Optoelectronics Corp. | Planar light emitting mechanism |
-
2007
- 2007-12-13 CN CN200710195773XA patent/CN101458358B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245905A (en) * | 1998-08-20 | 2000-03-01 | 松下电器产业株式会社 | Lighting unit and its liquid crystal display adopting one |
| US6820993B1 (en) * | 2003-08-20 | 2004-11-23 | Toppoly Optoelectronics Corp. | Planar light emitting mechanism |
Non-Patent Citations (4)
| Title |
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| JP特开2002-42532A 2002.02.08 |
| JP特开2004-247125A 2004.09.02 |
| JP特开平10-333142A 1998.12.18 |
| JP特开平11-95038A 1999.04.09 |
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| CN101458358A (en) | 2009-06-17 |
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