CN109799566A - A kind of anti-optical crosstalk light guide plate and light emitting device - Google Patents
A kind of anti-optical crosstalk light guide plate and light emitting device Download PDFInfo
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- CN109799566A CN109799566A CN201910125719.0A CN201910125719A CN109799566A CN 109799566 A CN109799566 A CN 109799566A CN 201910125719 A CN201910125719 A CN 201910125719A CN 109799566 A CN109799566 A CN 109799566A
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- light guide
- guide plate
- channel
- adhesive tape
- light
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- 239000002390 adhesive tape Substances 0.000 claims abstract description 66
- 230000003447 ipsilateral effect Effects 0.000 claims abstract description 5
- 230000001154 acute effect Effects 0.000 claims abstract description 4
- 230000003760 hair shine Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract description 14
- 238000004806 packaging method and process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 8
- 238000005286 illumination Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000937378 Everettia interior Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The present invention relates to light guide plate fields, disclose a kind of anti-optical crosstalk light guide plate and light emitting device, wherein, anti- optical crosstalk light guide plate includes the connection adhesive tape of at least two light guide plates and connection light guide plate, light emitting device includes anti-optical crosstalk light guide plate, it further include rubber shell, wiring board and LED component, the connecting portion of connection adhesive tape and light guide plate is located at the ipsilateral of each light guide plate, connecting adhesive tape includes first passage and second channel, one end of first passage is connect with light guide plate, the other end is connect with second channel, first passage is beeline channel, the angle of first passage and second channel is change of the acute angle anti-optical crosstalk light guide plate provided by the invention by the location and shape to connection adhesive tape, make the former region for being reflected back light from the light that a region enters connection adhesive tape originally, it is avoided under the premise of retaining the design of the adhesive tape with higher packaging efficiency Occurs optical crosstalk phenomenon between adjacent light guide plate, light emitting device has the high efficiency of assembling.
Description
Technical field
The present invention relates to light guide plate field more particularly to a kind of anti-optical crosstalk light guide plates and light emitting device.
Background technique
In the existing luminous product for possessing multiple luminous zones, product completes different luminous zones by multiple light guide plates
It shines, and in order to promote the packaging efficiency of product, multiple light guide plates can generally be linked together, adjacent light guide plate passes through small
Adhesive tape connection, synchronous assembling may be implemented when assemble multiple light guide plates, not only save time cost in this way, but saving manually at
This.But after actual production assembling, when product shines, luminous zone and luminous section have optical crosstalk phenomenon, i.e. a luminous zone hair
Light time, light can enter another luminous zone by adhesive tape, influence the illumination effect of product.For the defect, in the prior art
Usually light guide plate is kept completely separate, and is kept completely separate light guide plate this technique itself and has violated to promote assembling product efficiency
Original intention, therefore, it is necessary to a kind of anti-optical crosstalk light guide plate and its corresponding light emitting devices, have not only been able to satisfy the demand of anti-optical crosstalk, but also cannot
Reduce its packaging efficiency.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of anti-optical crosstalk light guide plate and light emitting device, anti-optical crosstalks
Light guide plate solves the problems, such as the optical crosstalk occurred between adjacent light guide plate under the premise of keeping the packaging efficiency of virgin rubber item design, shines
Device solves primary electro-optical device because of the string occurred between adjacent light guide plate under the premise of holding the packaging efficiency of virgin rubber item design
Optical issue.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of anti-optical crosstalk light guide plate, including at least two light guide plates and connection light guide plate connection adhesive tape, connection adhesive tape with
The connecting portion of light guide plate is located at the ipsilateral of each light guide plate, and connection adhesive tape includes first passage and second channel, first passage
One end is connect with light guide plate, and the other end is connect with second channel, and first passage is beeline channel, first passage and second channel
Angle is acute angle.
As a further improvement of the above technical scheme, included angle θ, θ meet 0 ° of θ≤60 ° <.
As a further improvement of the above technical scheme, light guide plate interior surface is rough surface, and light is in light guide plate
Diffusing reflection occurs, light is uniform in light guide plate.
As a further improvement of the above technical scheme, after light enters first passage, occur in second channel inner wall anti-
It penetrates, light reflects back into first straight line channel, returns in former light guide plate after the reflection of the inner wall in first straight line channel.
As a further improvement of the above technical scheme, connection adhesive tape connects adjacent light guide plate, the adjacent light guide plate
Between symmetry axis and it is connected to it connection adhesive tape symmetrical axle center it is coplanar.
As a further improvement of the above technical scheme, enter the light for connecting adhesive tape from the adjacent light guide plate respectively
Motion profile is symmetrical with symmetrical axle center.
As a further improvement of the above technical scheme, connection adhesive tape further includes third channel, third channel respectively with this
The second channel for connecting the both ends of adhesive tape tilts connection.
As a further improvement of the above technical scheme, third channel and the second channel at both ends form " M " type channel.
A kind of light emitting device further includes rubber shell, wiring board and LED component, anti-optical crosstalk including above-mentioned anti-optical crosstalk light guide plate
Light guide plate is installed in rubber shell, and wiring board controls LED component and shines.
As a further improvement of the above technical scheme, LED component is located at any side of light guide plate, single light guide plate pair
Answer multiple LED components.
The beneficial effects of the present invention are:
Anti- optical crosstalk light guide plate provided by the invention is made originally by the change of the location and shape to connection adhesive tape from one
The light that region enters connection adhesive tape is reflected back the former region of light, before retaining the design of the adhesive tape with higher packaging efficiency
It puts and occurs optical crosstalk phenomenon between avoiding adjacent light guide plate.
Anti- optical crosstalk light guide plate is utilized in light emitting device provided by the invention, and adjacent light emitting region is not in optical crosstalk phenomenon,
And the design of the adhesive tape between adjacent light guide plate in the prior art is remained, there is the high efficiency of assembling.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is a kind of ideally structural schematic diagram of light emitting device；
Fig. 2 is the connection schematic diagram of adjacent light guide plate in the prior art；
Fig. 3 is a kind of structural schematic diagram of light emitting device in the prior art；
Fig. 4 is the connection schematic diagram of the anti-optical crosstalk light guide plate of one embodiment of the invention；
Fig. 5 is the structural schematic diagram of one embodiment of the invention light emitting device；
Fig. 6 is the light path schematic diagram of one embodiment of the invention connection adhesive tape.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to design of the invention, specific structure and generation clear
Chu, complete description, to be completely understood by the purpose of the present invention, scheme and effect.It should be noted that the case where not conflicting
Under, the features in the embodiments and the embodiments of the present application can be combined with each other.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In addition, this
The descriptions such as up, down, left, right, before and after used in invention are only relative to the mutual of each component part of the invention in attached drawing
For positional relationship.
In addition, unless otherwise defined, the technology of all technical and scientific terms used herein and the art
The normally understood meaning of personnel is identical.Term used in the description is intended merely to description specific embodiment herein, without
It is to limit the present invention.Term " and or " used herein includes the arbitrary of one or more relevant listed items
Combination.
In actual production, the interconnected relationship between multiple light guide plates reacts the connection status in two neighboring light guide plate
On, therefore, embodiment provided by the invention is illustrated with the correlation of two light guide plates, to react in actual production installation
The case where multiple light guide plates.
Referring to Fig.1, a kind of ideally structural schematic diagram of light emitting device, light guide plate 1 and light guide plate 2 in figure are shown
Completely isolated, light guide plate 1 and light guide plate 2 can issue the light of different colours, not formed completely when light guide plate 1 shines to light guide plate 2
Interference, i.e., light guide plate 1 and light guide plate 2 are physically located two space interiors not interfered with each other completely.To leading in this figure
It when tabula rasa 1 and light guide plate 2 are installed, needs that successively two light guide plates are installed, that is, needs to be positioned twice, increase
Installation procedure, and in actual production, it is to be ensured that adjacent light guide plate is kept completely separate.
But in order to guarantee that multiple light guide plates are generally passed through a small adhesive tape by the efficiency for producing and installing, the prior art
It links together, group can be filled with and save labour turnover together when assembling multiple light guide plates, when facing different demands, according to
Light guide plate quantity cut at adhesive tape with obtain appropriate number of light guide plate be also it is essential, therefore, perfect condition
Under product do not meet the actual demand of product.
Referring to Fig. 2, the connection schematic diagram of adjacent light guide plate in the prior art is shown, can be evident that, it is guide-lighting
There is the adhesive tape 21 of two light guide plates of a connection between plate 11 and light guide plate 12, which is that the connection between multiple light guide plates is situated between
Matter, in multiple light guide plate situations more than 2 light guide plates, by adhesive tape, multiple light guide plates are arranged in parallel and only adhesive tape position
Set contact.
Therefore, under conditions of the prior art of Fig. 2 introduction, under normal circumstances, the installation situation of light guide plate such as Fig. 3 institute
Show, Fig. 3 is a kind of structural schematic diagram of light emitting device in the prior art.It is connected among light guide plate 11 and light guide plate 12 by adhesive tape 21
A light guide plate assembly is formd, positioned at the inside of rubber shell 31, wiring board 32 and LED component 33, route are integrated in rubber shell 31
Plate 32 controls LED component 33 and shines, and the light that then LED component 33 issues is by forming different luminous zones after light guide plate.It is guide-lighting
Plate 11 and light guide plate 12 are forming different luminous zones in actual work, that is, pass through the light of light guide plate 11 and pass through light guide plate 12
Light it is different.
However, when light guide plate 11 shines, light can spill into the hair of light guide plate 12 by adhesive tape due to the presence of adhesive tape 21
In light region, i.e., dash area 13 in figure influences the illumination effect of entire product, and this phenomenon is known as optical crosstalk, light not from
Adhesive tape wall sheds, but spills into 13 position of dash area.Light guide plate 11 is similarly also influenced when light guide plate 12 shines, in this glue
In the presence of item 21, such phenomenon is inevitable, if but remove adhesive tape, and affect the packaging efficiency of light guide plate.
Referring to Fig. 4, the connection schematic diagram of the anti-optical crosstalk light guide plate of one embodiment of the invention is shown, relative to Fig. 2, Fig. 3,
The position relationship of light guide plate 11 and light guide plate 12, but 21 position shape of adhesive tape is changed, and new connection is formd
Adhesive tape 22, connection adhesive tape 22 are located at the ipsilateral of light guide plate 11 and light guide plate 12, and the principle of the anti-optical crosstalk of the present embodiment light guide plate is
Adhesive tape is increased into corner design, when light moves in adhesive tape, turning is encountered and is reflected, rising for light is returned to after multiple reflections
Beginning region, it is entirely avoided the generation of optical crosstalk also remains adhesive tape design, that is, ensure that the efficient of assembling light guiding plate.
22 1 connection light guide plates 11 of adhesive tape are connected, other end connects light guide plate 12, goes from the point of view of Fig. 4, light guide plate
The plane of symmetry between 11 and light guide plate 12 is same plane with the plane of symmetry for connecting adhesive tape 22 itself.
Referring to Fig. 5, the structural schematic diagram of one embodiment of the invention light emitting device, light guide plate 11 and light guide plate 12 are shown
It is embedded in rubber shell 31, wiring board 32 controls LED component 33 and shines, and the connector of light guide plate 11 and light guide plate 12 is connection adhesive tape
22, connection adhesive tape 22 is located at the same side (lower section in diagram direction) of light guide plate 11 and light guide plate 12, connection adhesive tape 22 and leaded light
The link position of plate 11 and light guide plate 12 is also respectively positioned on the ipsilateral of light guide plate 11 and light guide plate 12.Light inside light guide plate 11 is logical
It crosses 22 inner wall of connection adhesive tape to reflect back into inside light guide plate 11, avoids the generation of optical crosstalk phenomenon, the light inside light guide plate 12
It is returned to inside light guide plate 12 also based on same principle.
Two channels that connection adhesive tape 22 is connect with light guide plate 11 and light guide plate 12 respectively are that light may in light guide plate
First passage 221 is denoted as by taking channel at the first light guide plate as an example into the channel of connection adhesive tape 22.
Movement of the light in connection adhesive tape 22 is illustrated below with reference to Fig. 6, Fig. 6 is that one embodiment of the invention connects
Connect the light path schematic diagram of adhesive tape.It is a that light guide plate 11, which enters the light of connection adhesive tape 22, in Fig. 6.
Since the symmetry axis between light guide plate 11 and light guide plate 12 is conllinear with the symmetry axis for connecting adhesive tape 22, that is, connect adhesive tape
22 is symmetrical about dotted line MN in figure in itself, and in scheming on the basis of direction, the dotted line MN left part of connection adhesive tape 22 belongs to and leads
The coupling part of tabula rasa 11, dotted line MN right part belong to the coupling part with light guide plate 12, the light come out from light guide plate 11
The movement in adhesive tape 22 is being connected about dotted line MN or so mirror image, (i.e. with the left side dotted line MN with from the light that light guide plate 12 comes out
Connect the connecting side of adhesive tape 22 and light guide plate 11) it is illustrated.
When light a enters first passage 221, the inner wall of contact second channel 222 after the end of channel, second channel are moved to
222 and the angle of first passage 221 are acute angle, and light a reflect at the inner wall of second channel 222, arrival second channel 222
Light is reflected back to substantially in first passage 221, then returns to light guide plate 11 by the multiple reflections in first passage 221
It is interior, it thus will be reflected back in light guide plate 11 from the light of loss in light guide plate 11, it is therefore prevented that the generation of optical crosstalk phenomenon decreases light
Loss.
In order to guarantee that track carries out as expected for the reflection of light, the angle of first passage 221 and second channel 222 is sharp
Angle, vias inner walls cannot do chamfering structure.
In order to reach better effect, note θ is the angle of first passage 221 and second channel 222, guarantee 0 ° of < θ≤
60°。
In this embodiment, the interior surface of light guide plate 11 and light guide plate 12 has carried out concave-convex processing or coarse processing,
I.e. interior surface is coarse, so that in the inner wall of light guide plate 11 and light guide plate 12 diffusing reflection, light guide plate 11 and light guide plate occur for light
12 internal light is equally distributed.
Therefore, entered by the light guide plate 11 and light guide plate 12 the light overwhelming majority of connection adhesive tape 22 with connect adhesive tape 22
Side wall be it is parallel, along its direction reach second channel 222 at can obtain reflecting back into first passage 221, guarantee
Light is reflected back former light guide plate region, but in a practical situation, since the interface of connection adhesive tape 22 and light guide plate 11 is that have
Size, that is, the light for having part non-fully parallel (is denoted as light b, is not shown in the figure, which refers to any logical into first
Light not parallel with first passage side wall and that first passage cannot be returned to by second channel reflection when road) also enter first
Channel 221, and cause cannot be by reflecting back into first passage 221 at second channel 222 in its direction.Therefore, for connecting glue
Item 22 is also additionally arranged a third channel 223, the formation of the second channel 221 " M " the type channel of third channel 223 and both ends.
One end of second channel 222 connects first passage 221, and the other end connects third channel 223, third channel 223 with
Second channel 222 has an angle, and light b, which is first contacted in first passage 221 with side wall, occurs multiple reflections, in second channel
Also multiple reflections occur in 222, then inside the angle and third channel 223 of third channel 223 and second channel 222
Multiple reflections occur, the very low light b of intensity itself is reflected to be lost completely, i.e., will not impact to illumination effect, more
Optical crosstalk phenomenon can not occur.
Therefore, 33 position of light source led component can arbitrarily place unaffected, and adhesive tape 22 is available answers extensively for connection
With, and under the occasion for having strict demand to illumination effect, the number of channels of connection adhesive tape 22 can be increased to reach effect.
It is to be illustrated to what preferable implementation of the invention carried out, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (10)
1. a kind of anti-optical crosstalk light guide plate, which is characterized in that the connection adhesive tape including at least two light guide plates and connection light guide plate, institute
The connecting portion for stating connection adhesive tape and the light guide plate is located at the ipsilateral of each light guide plate, and the connection adhesive tape includes first logical
Road and second channel, one end of the first passage are connect with the light guide plate, and the other end is connect with the second channel, described
First passage is beeline channel, and the angle of the first passage and the second channel is acute angle.
2. anti-optical crosstalk light guide plate according to claim 1, which is characterized in that the included angle be θ, θ meet 0 ° of < θ≤
60°。
3. anti-optical crosstalk light guide plate according to claim 1, which is characterized in that the light guide plate interior surface is coarse table
Diffusing reflection occurs in the light guide plate for face, light, and light is uniform in the light guide plate.
4. anti-optical crosstalk light guide plate according to claim 1, which is characterized in that after light enters the first passage, in institute
It states second channel inner wall to reflect, light reflects back into first straight line channel, returns after the reflection of the inner wall in first straight line channel
Into former light guide plate.
5. anti-optical crosstalk light guide plate according to claim 1, which is characterized in that the connection adhesive tape connects adjacent leaded light
Plate, the symmetrical axle center of symmetry axis and the connection adhesive tape connected to it is coplanar between the adjacent light guide plate.
6. anti-optical crosstalk light guide plate according to claim 5, which is characterized in that respectively from described in adjacent light guide plate entrance
The motion profile for connecting the light of adhesive tape is symmetrical with the symmetrical axle center.
7. anti-optical crosstalk light guide plate according to claim 1, which is characterized in that the connection adhesive tape further includes third channel,
The third channel tilts with the second channel at the both ends of the connection adhesive tape connect respectively.
8. anti-optical crosstalk light guide plate according to claim 7, which is characterized in that described the second of the third channel and both ends
Channel forms " M " type channel.
9. a kind of light emitting device, which is characterized in that including the described in any item anti-optical crosstalk light guide plates of claim 1-8, further include
Rubber shell, wiring board and LED component, the anti-optical crosstalk light guide plate are installed in the rubber shell, and the wiring board controls the LED group
Part shines.
10. light emitting device according to claim 9, which is characterized in that the LED component is located at any of the light guide plate
Side, the single light guide plate correspond to multiple LED components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125719.0A CN109799566B (en) | 2019-02-20 | 2019-02-20 | Anti-series light guide plate and light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910125719.0A CN109799566B (en) | 2019-02-20 | 2019-02-20 | Anti-series light guide plate and light-emitting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109799566A true CN109799566A (en) | 2019-05-24 |
| CN109799566B CN109799566B (en) | 2024-02-13 |
Family
ID=66562251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910125719.0A Active CN109799566B (en) | 2019-02-20 | 2019-02-20 | Anti-series light guide plate and light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109799566B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090290093A1 (en) * | 2008-05-26 | 2009-11-26 | Takashi Shimura | Planar light-emitting device and liquid crystal display apparatus |
| CN202929236U (en) * | 2012-11-29 | 2013-05-08 | 京东方科技集团股份有限公司 | Light guide plate, backlight module group, and display apparatus |
| US20160238777A1 (en) * | 2014-05-27 | 2016-08-18 | Radiant Opto-Electronics Corporation | Light guide plate ,light source module and display device |
| CN205943878U (en) * | 2016-07-20 | 2017-02-08 | 深圳正峰印刷有限公司 | Can improve button structure of optical crosstalk |
| CN206145505U (en) * | 2016-10-19 | 2017-05-03 | 广州市浩洋电子股份有限公司 | Prevent stage lamp of optical crosstalk |
| US20170329072A1 (en) * | 2012-03-16 | 2017-11-16 | Radiant Opto-Electronics Corporation | Light guide plate and light source module |
| CN208090373U (en) * | 2018-04-08 | 2018-11-13 | 青岛亿联客信息技术有限公司 | A kind of touch device and lighting apparatus of lighting apparatus |
| CN209417337U (en) * | 2019-02-20 | 2019-09-20 | 兴国汇晨科技有限公司 | A kind of anti-optical crosstalk light guide plate and light emitting device |
-
2019
- 2019-02-20 CN CN201910125719.0A patent/CN109799566B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090290093A1 (en) * | 2008-05-26 | 2009-11-26 | Takashi Shimura | Planar light-emitting device and liquid crystal display apparatus |
| US20170329072A1 (en) * | 2012-03-16 | 2017-11-16 | Radiant Opto-Electronics Corporation | Light guide plate and light source module |
| CN202929236U (en) * | 2012-11-29 | 2013-05-08 | 京东方科技集团股份有限公司 | Light guide plate, backlight module group, and display apparatus |
| US20160238777A1 (en) * | 2014-05-27 | 2016-08-18 | Radiant Opto-Electronics Corporation | Light guide plate ,light source module and display device |
| CN205943878U (en) * | 2016-07-20 | 2017-02-08 | 深圳正峰印刷有限公司 | Can improve button structure of optical crosstalk |
| CN206145505U (en) * | 2016-10-19 | 2017-05-03 | 广州市浩洋电子股份有限公司 | Prevent stage lamp of optical crosstalk |
| CN208090373U (en) * | 2018-04-08 | 2018-11-13 | 青岛亿联客信息技术有限公司 | A kind of touch device and lighting apparatus of lighting apparatus |
| CN209417337U (en) * | 2019-02-20 | 2019-09-20 | 兴国汇晨科技有限公司 | A kind of anti-optical crosstalk light guide plate and light emitting device |
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| Publication number | Publication date |
|---|---|
| CN109799566B (en) | 2024-02-13 |
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