CN103576992B - Film and light guide plate and position detection system with positional information - Google Patents
Film and light guide plate and position detection system with positional information Download PDFInfo
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- CN103576992B CN103576992B CN201210277298.1A CN201210277298A CN103576992B CN 103576992 B CN103576992 B CN 103576992B CN 201210277298 A CN201210277298 A CN 201210277298A CN 103576992 B CN103576992 B CN 103576992B
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- light
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- information area
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Abstract
The invention discloses a kind of position detection system, comprising：Positional information providing apparatus, with light emitting side, positional information area is distributed in the outer surface of the light emitting side, and positional information providing apparatus receives light beam from light-receiving side joint, when light beam is projected from least a portion of the light emitting side, the light beam can carry the positional information in the positional information area；Transceiver, the light beam of the positional information is carried to receive；And processor, the positional information according to received by the transceiver judges the position of the corresponding positional information providing apparatus of the transceiver.After wherein the light-receiving side and the light emitting side are not homonymy, and the light is from the light-receiving side into the positional information providing apparatus, through the positional information providing apparatus at least some and the positional information providing apparatus is projected from the light emitting side.Positional information providing apparatus can include light guide plate or film, and this light guide plate or film can be also used on other electronic installations.Wherein light is the black light with specific wavelength.
Description
Technical field
The present invention relates to a kind of film and light guide plate, and the position detection system of this film or light guide plate is used, especially
It is about a kind of film and light guide plate for providing positional information and using this film or the position detection system of light guide plate.
Background technology
If wanting to use writing function on the electronic device, common technology be various Trackpad, the hand-written version of drawing or
OID (Object Identifier, object ID) technology of digital pen etc etc..
However, aforementioned techniques all have the shortcomings that some are difficult to overcome.For example, user is using Trackpad
When, habitually palm may be placed on the touch pad, therefore Trackpad easily judges user by accident and carries out touch-control row to it
To produce unnecessary corresponding action.However, the Trackpad of electric capacity, resistance or optical profile type can not overcome this class to ask
Topic.And comparatively Trackpad electromagnetically can reduce the interference of this class, but because of Trackpad in itself and stylus is required for
There is calutron, its cost is costly.Digital pen then needs light source being arranged on digital pen, and needs to print microcode with ink
In body surface, the light beam for being reflected in body surface is received, therefore specific device must be used, it is more difficult to which screen is done well with
Combination.
The content of the invention
Therefore, it is an object of the invention to disclose it is a kind of can be by the position detection system of external light source, and be not necessary to
It is extra on the transceiver of the class of digital pen that light source is set.
A further object of the present invention is to disclose a kind of light guide plate with positional information, can be used in various displays
On device.
A further object of the present invention is to disclose a kind of film with positional information, can be used in various luminous dresses
Put or light source on.
One embodiment of the invention discloses a kind of position detection system, comprising：Positional information providing apparatus, is penetrated with light
Go out side, positional information area is distributed in the outer surface of the light emitting side, and positional information providing apparatus receives light beam from light-receiving side joint,
When light beam is projected from least one portion of the light emitting side, the light beam can carry the position at least one positional information area
Information；Transceiver, the light beam of the positional information is carried to receive；And processor, according to received by the transceiver
The positional information judges the position of the corresponding positional information providing apparatus of the transceiver.Wherein the light-receiving side and the light are penetrated
After it is not homonymy to go out side, and the light is from the light-receiving side into the positional information providing apparatus, dress is provided through the positional information
Put at least a part of and project the positional information providing apparatus from the light emitting side.
Foregoing position detection system can include the light guide plate with positional information, and it is included：Light-receiving side；Light is projected
Side, positional information area is distributed in the outer surface of the light emitting side, when the light is projected from least one portion of the light emitting side
When, the light can carry the positional information in the positional information area.Wherein light is the black light with specific wavelength.
Foregoing position detection system can include the film with positional information, comprising：Light-receiving side；And light is projected
Side, positional information area is distributed in the light and projects surface, when the light is projected from least one portion of the light emitting side, the light meeting
Positional information with the positional information area.Wherein light is the black light with specific wavelength.
Above-mentioned light guide plate and film can also be used in other electronic installations except that can be used in aforementioned location detecting system
On.
According to foregoing embodiment, transceiver is not necessary to possess light source in itself, therefore can have relatively low power consumption.Moreover, this
Invention provides positional information by light guide plate or film, therefore can be easily with many existing display devices or projection dress
Put and combine, significantly dike has risen exercisable scope of the invention.
Brief description of the drawings
Fig. 1 depicts position detection system according to an embodiment of the invention.
Fig. 2 depicts a structural representation of the positional information providing apparatus in Fig. 1.
Fig. 3 depicts an extension embodiment of embodiment illustrated in fig. 2.
Fig. 4 depicts another structural representation of the positional information providing apparatus in Fig. 1.
Wherein, description of reference numerals is as follows：
100 position detection systems
101 positional information providing apparatus
103 transceivers
105 processors
107 smooth emitting sides
109 positional information areas
201 light sources
203rd, 303 light guide plate
205th, 305,405 light-receiving side
401 light-emitting devices
403 films
Embodiment
Some vocabulary have been used among claim in specification and above to censure specific element.In art
Has usually intellectual, it is to be appreciated that hardware manufacturer may call same element with different nouns.This specification
And claim above is not in the way of the difference of title is used as differentiation element, but the difference with element functionally
It is used as the criterion of differentiation.In the whole text, the "comprising" of specification and claim above mentioned in is a kind of open
Term, therefore " include but be not limited to " should be construed to.Fig. 1 depicts position detection system according to an embodiment of the invention
100.As shown in figure 1, position detection system 100 includes positional information providing apparatus 101, a transceiver 103 and one
Individual processor 105.Positional information providing apparatus 101 has a light emitting side 107, and at least one positional information area 109 (is only marked
Show a part) outer surface of light emitting side 107 is distributed in, when a light beam L is projected from least a portion of light emitting side 107
When, light beam L can carry a positional information in an at least positional information area.Transceiver 103 (for example, a digital pen), which is received, carries position
The light beam L of confidence breath is to receive coherent video.Image of the processor 105 according to received by transceiver 103 judges transceiver 103
One position of opposite position information provider unit 101.
In one of the embodiments, positional information area 109 causes light beam L not pass through, and forms dark brightness, or
Person, can also make the part diffusion of light, and form brighter brightness.Therefore, positional information area 109 can change light emitting side
107 overall brightnesses presented.Positional information area 109 can be able to be that naked eyes can comprising ink, light absorbent, laser material etc.
The material seen, or transparent not visible material.In another embodiment, positional information area 109 includes material for transformation of wave length,
The light with specific wavelength can be stopped.Therefore light beam L can be the black light (such as infrared light) with specific wavelength, so may be used
To be stopped by positional information area 109 to judge position, and without interference with the sight of user.
Positional information area 109 can have different density distributions, size, material and shape (i.e. institute of positional information area 109
The shape of composition).Therefore transceiver 103 receive light beam L-shaped into image after, these images can be sent to processor
105.Processor 105 can compare these images with the data prestored, to calculate brightness and foregoing density, big
After the parameter such as small, material and shape, a position of the opposite position information provider unit 101 of transceiver 103 is obtained according to this.
Therefore, positional information area can be considered a kind of encoded, layouting with positional information or pattern, and these coded systems can be using each
Different microcode algorithms are planted, such as previously described OID technologies do not limit to reach.
Fig. 2 depicts a structural representation of the positional information providing apparatus 101 in Fig. 1.As shown in Fig. 2 position is believed
Breath provides device 101 and contains a light source 201 and a light guide plate 203.The light that light guide plate 203 is contained in Fig. 1 is projected
Side 107 and the light-receiving side 205 that light is received from light source 201.Positional information area 109 is distributed in the outside of light emitting side 107
On surface.The characteristic of light guide plate script is that light is injected after light guide plate 203, can be constantly totally reflected in light guide plate, will not
Project outside light guide plate.However, by being coated with positional information area 109 as the aforementioned in the light emitting side 107 of light guide plate 203, can allow
Light can project light guide plate, be totally reflected without being limited in light guide plate 203.
In the embodiment shown in Figure 2, because light guide plate 203 is rectangle, therefore light-receiving side 205 is perpendicular to light injection
Side 107.However, light guide plate can also be other shapes.Fig. 3 depicts an extension embodiment of embodiment illustrated in fig. 2.In figure
In embodiment shown in 3, positional information providing apparatus 101 also contains a light source 201 and a light guide plate 303.It is guide-lighting
Plate 303 also has the light emitting side 107 described in Fig. 1 and the light-receiving side 305 from the reception light of light source 201.And light emitting side
Also there is positional information area 109 on 107.Embodiment illustrated in fig. 2 exists with embodiment illustrated in fig. 3 difference, the leaded light shown in Fig. 2
Plate 203 is rectangle, but the light guide plate 303 shown in Fig. 3 is wedge shape, therefore light emitting side 107 and light-receiving side 305 in Fig. 3
It is not perpendicular to one another.Because modern electronic installation is in order to meet ergonomics, its shape is less seemingly generally defined in length in the past
It is square, therefore by providing light guide plate of different shapes, not only can more flexibly control light travel path and brightness, more can be with
The present invention is allowed to have broader utilization.
Fig. 4 depicts another structural representation of the positional information providing apparatus 101 in Fig. 1.As shown in figure 4, position
Information provider unit 101 contain a light-emitting device 401 (but it is also possible to be light emitting sources such as fluorescent tubes such as LCD screen) with
And a film 403.Light-emitting device 401 is to provide light.Film 403 includes the light shown in Fig. 1 on light-emitting device 401
Emitting side 107 and the light-receiving side 405 that light is received to selfluminous device 401, wherein light emitting side 107 and light-receiving side
405 is relative.Also there is positional information area 109 on light emitting side 107 in Fig. 3, therefore light selfluminous device 401 is projected and penetrated
After film 107, the light L with positional information can be formed.
Please note that, the film shown in light guide plate and Fig. 4 shown in earlier figures 2, Fig. 3, do not limit using in Fig. 1
Shown position detection system, it can be also used on other electronic installations.
According to foregoing embodiment, light beam L is to carry positional information in the way of outgoing is in light emitting side 107, therefore
Transceiver is not necessary to possess light source in itself, and can have relatively low power consumption.Moreover, the present invention provides position by light guide plate or film
Confidence ceases, therefore combined with easily can doing with many existing display devices or projection arrangement, significantly dike risen the present invention can
The scope of utilization.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (23)
1. a kind of light guide plate that positional information is provided, comprising：
Light-receiving side, to receive light from light source；
Light emitting side, positional information area is distributed in the outer surface of the light emitting side, when the light is from least the one of the light emitting side
When part is projected, the light can carry the positional information in the positional information area, and the positional information area includes that positional information can be provided
Material；
Wherein the light is the black light with specific wavelength；
After wherein the light-receiving side and the light emitting side are not homonymy, and the light is from the light-receiving side into the light guide plate, wear
Cross the light guide plate at least some and project the light guide plate from the light emitting side.
2. light guide plate as claimed in claim 1, wherein the positional information area cause the light not pass through.
3. light guide plate as claimed in claim 1, wherein the positional information area cause the part of the light to spread.
4. light guide plate as claimed in claim 1, wherein the positional information area are somebody's turn to do comprising material for transformation of wave length, to stop to have
The light of specific wavelength.
5. light guide plate as claimed in claim 1, the wherein positional information can pass through at least one following spy of the positional information area
Property judges：Density, size, material and shape.
6. light guide plate as claimed in claim 1, wherein the positional information area are used for changing the brightness that the light emitting side is presented.
7. light guide plate as claimed in claim 1, wherein the light-receiving side is perpendicular to the light emitting side.
8. a kind of film that positional information is provided, comprising：
Light-receiving side, light is received to self-emitting light source；And
Light emitting side, positional information area is distributed in the light and projects surface, when the light is projected from least a portion of the light emitting side
When, the light can carry the positional information in the positional information area, and the positional information area includes that the material of positional information can be provided；
Wherein the light is the black light with specific wavelength；
After wherein the light-receiving side and the light emitting side are not homonymy, and the light is from the light-receiving side into the film, pass through
The film simultaneously projects the film from the light emitting side.
9. film as claimed in claim 8, wherein the positional information area cause the light not pass through.
10. film as claimed in claim 8, wherein the positional information area cause the part of the light to spread.
11. film as claimed in claim 8, wherein the positional information area are somebody's turn to do comprising material for transformation of wave length, to stop to have
The light of specific wavelength.
12. film as claimed in claim 8, the wherein positional information can pass through at least one following characteristic of the positional information area
To judge：Density, size, material and shape.
13. film as claimed in claim 8, wherein the positional information area are used for changing the brightness that the light emitting side is presented.
14. a kind of position detection system, comprising：
Positional information providing apparatus, with light emitting side, positional information area is distributed in the outer surface of the light emitting side, the position
Information provider unit receives light beam from light-receiving side joint, when the light beam is projected from least a portion of the light emitting side, the light beam
The positional information in the positional information area can be carried, the positional information area includes that the material of positional information can be provided；
Transceiver, the light beam of the positional information is carried to receive；And
Processor, positional information according to received by the transceiver judges that the corresponding positional information of the transceiver provides dress
The position put；
Wherein the light-receiving side and the light emitting side are not homonymy, and the light enters positional information offer from the light-receiving side
After device, through the positional information providing apparatus at least some and the positional information providing apparatus is projected from the light emitting side.
15. position detection system as claimed in claim 14, the wherein positional information providing apparatus are included：
Light source；And
Light guide plate, includes the light emitting side and the light-receiving side.
16. position detection system as claimed in claim 15, wherein the light-receiving side is perpendicular to the light emitting side.
17. position detection system as claimed in claim 14, the wherein positional information providing apparatus are included：
Light-emitting device, to provide the light；And
Film, position includes the light emitting side and the light-receiving side on the light-emitting device.
18. position detection system as claimed in claim 14, wherein the positional information area cause the light not pass through.
19. position detection system as claimed in claim 14, wherein the positional information area cause the part of the light to spread.
20. position detection system as claimed in claim 14, the wherein light are the black light with specific wavelength.
21. position detection system as claimed in claim 20, wherein the positional information area are comprising material for transformation of wave length, to hinder
Light of the gear with the specific wavelength.
22. position detection system as claimed in claim 14, the wherein positional information can be following extremely by the positional information area
Lack a characteristic to judge：Density, size, material and shape.
23. position detection system as claimed in claim 14, wherein the positional information area are used for changing the light emitting side
Existing brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277298.1A CN103576992B (en) | 2012-08-06 | 2012-08-06 | Film and light guide plate and position detection system with positional information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210277298.1A CN103576992B (en) | 2012-08-06 | 2012-08-06 | Film and light guide plate and position detection system with positional information |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103576992A CN103576992A (en) | 2014-02-12 |
| CN103576992B true CN103576992B (en) | 2017-09-15 |
Family
ID=50048908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210277298.1A Active CN103576992B (en) | 2012-08-06 | 2012-08-06 | Film and light guide plate and position detection system with positional information |
Country Status (1)
| Country | Link |
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| CN (1) | CN103576992B (en) |
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| CN101089801A (en) * | 2006-06-12 | 2007-12-19 | 极鼎科技股份有限公司 | Optical input device |
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| CN102144208A (en) * | 2008-07-07 | 2011-08-03 | 北方电讯网络有限公司 | Multi-touch touchscreen incorporating pen tracking |
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|---|---|---|---|---|
| US7133032B2 (en) * | 2003-04-24 | 2006-11-07 | Eastman Kodak Company | OLED display and touch screen |
| US8847924B2 (en) * | 2005-10-03 | 2014-09-30 | Hewlett-Packard Development Company, L.P. | Reflecting light |
| JP2012053840A (en) * | 2010-09-03 | 2012-03-15 | Toshiba Tec Corp | Optical touch device |
| TWM419988U (en) * | 2011-08-19 | 2012-01-01 | Lecc Technology Co Ltd | Touch-to-control input apparatus |
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- 2012-08-06 CN CN201210277298.1A patent/CN103576992B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1695156A (en) * | 2002-09-26 | 2005-11-09 | 吉田健治 | Information reproduction/i/o method using dot pattern, information reproduction device, mobile information i/o device, and electronic toy |
| CN1875337A (en) * | 2003-11-07 | 2006-12-06 | 三菱电机株式会社 | Method for determining location on display surface and interactive display system |
| CN101089801A (en) * | 2006-06-12 | 2007-12-19 | 极鼎科技股份有限公司 | Optical input device |
| CN101153972A (en) * | 2006-09-26 | 2008-04-02 | Lg.菲利浦Lcd株式会社 | Display with infrared backlight source and multi-touch sensing function |
| CN102144208A (en) * | 2008-07-07 | 2011-08-03 | 北方电讯网络有限公司 | Multi-touch touchscreen incorporating pen tracking |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103576992A (en) | 2014-02-12 |
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