CN101907949A - Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel - Google Patents
Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel Download PDFInfo
- Publication number
- CN101907949A CN101907949A CN2009101464214A CN200910146421A CN101907949A CN 101907949 A CN101907949 A CN 101907949A CN 2009101464214 A CN2009101464214 A CN 2009101464214A CN 200910146421 A CN200910146421 A CN 200910146421A CN 101907949 A CN101907949 A CN 101907949A
- Authority
- CN
- China
- Prior art keywords
- infrared
- feedback reflection
- edge
- feedback
- infrared feedback
- 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.)
- Pending
Links
Images
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The invention relates an infrared feedback reflection unit used in a wide screen optical touch panel. The infrared feedback reflection unit comprises an infrared feedback reflection strip; the infrared feedback reflection strip is provided with a front surface, a back surface and a long shaft and is formed by a cubic angle feedback reflection structure which is provided with at least one first slot and at least two second slots and is positioned below the front surface; the first slot is vertical to the long shaft; and when the incidence angle of the infrared emitted towards the front surface is 0-60 degrees, the infrared feedback reflection strip reflects the infrared with needed reflected light quantity. The invention also relates to a method for manufacturing an infrared feedback reflection unit used in a wide screen optical touch panel, comprising the following steps: forming a cubic angle feedback reflector plate, wherein the formed cubic angle feedback reflector plate is provided with a front surface, a back surface, a first direction and a second direction, and the first direction is vertical to the second direction; and cutting the cubic angle feedback reflector plate into the infrared feedback reflection strip along the second direction. The invention also relates to a wide screen optical touch panel adopting the infrared feedback reflection unit.
Description
Technical field
The present invention relates to be used for the manufacture method of infrared feedback reflection unit and this kind device of wide screen optical touch panel, and the wide screen optical touch panel that uses this kind infrared feedback reflection unit; Particularly relate to the panel that is used for the aspect ratio and the infrared feedback reflection unit of sufficient infrared reflection amount and the manufacturing and the application process of this kind device can be provided.
Background technology
The use of contact panel is gradually general, and area develops towards large scale.The contact panel length breadth ratio in past mostly is 4: 3 greatly, and 16: 9 now wide-screen panel then is subjected to everybody and prefers to use.
The kind of contact panel has electric resistance touch-control panel, capacitance type touch-control panel, and optical touch control panel at present.The electric resistance touch-control panel development is the structure that adopts the multilayer storehouse early, and shortcoming is the transmittance susceptible to, easily because of scratch damages, and once can only handle a touch point.Though capacitance type touch-control panel has preferable transmittance, but still need on the full wafer panel, to set up electric field, could change by inductance capacitance by the lamination mode; If it is big that panel size becomes, in material and manufacturing, will run into more restrictions, cost also can be higher.The benefit of optical touch control panel is that panel surface does not have the lamination thing to attach, and does not influence the panel transmittance.
The optical touch panel in past announces the 3rd, 764 as United States Patent (USP), No. 813, must use most paired optical transmitting set and light-receiving (detecting) devices that are distributed in four edges of panel.New-type optical touch panel announces the 4th, 507 as United States Patent (USP), and No. 557, utilize 2 groups of infrared rays to send and reception (detecting) device, cooperate the use of light feedback reflection (retroreflecting) material, can detect the touch points position on the panel.This kind panel is not only simple in structure, and for large-sized panel, because use part few, does not need to do the large tracts of land lamination, has on the cost and the advantage of making.The technology of relevant light feedback reflecting material, the known PCT of having patent announcement WO2006/096258 and United States Patent (USP) announce the 5th, 200, No. 851 etc.
Yet, for a long time, this kind used the optical touch control panel of a minority light emission and receiver, but be subjected to light feedback reflecting material can't be when big incident angle the reflection light quantity restriction of giving optical receiver fully and stably, panel can't be made has the wide screen of aspect than (high aspect ratio); For example: length breadth ratio is 16: 9 a wide screen, and the senior general of incident angle that the feedback reflecting material is accepted light surpasses 60 degree, thus the time feedback of capacity light can't have been reflected to optical receiver, even fully can not reflection ray.Especially, when feedback reflecting material surface must cover color layers for mating surface slab integral outward appearance, because of the light quantity that is incident to the feedback reflecting material reduces, the angle that the feedback reflecting material can reflect abundant light will more reduce.
Therefore, industry need for a long time a kind of can be when big incident angle the sufficient light quantity of reflection give the light feedback reflection unit of optical receiver, this is the necessary technology of development wide screen optical touch panel.
Summary of the invention
1 of purpose of the present invention is to provide a kind of infrared feedback reflection unit of feedback reflection that still can produce when big incident angle.
Two of purpose of the present invention still can produce the manufacture method of the infrared feedback reflection unit of feedback reflection when being to be provided at big incident angle, the manufacture that this kind can be made the infrared feedback reflection unit that adapts to big incident angle is that institute is ignorant in the past.
Three of purpose of the present invention is to provide the made aspect of utilization this kind infrared feedback reflection unit to compare optical touch panel.
The present invention relates to be used for the infrared feedback reflection unit of wide screen optical touch panel, comprise: the infrared feedback reflection bar, described infrared feedback reflection bar has front surface, the back side and major axis, described infrared feedback reflection bar is formed by cube corner feedback reflection configuration, described cube corner feedback reflection configuration has at least one first conduit and at least two second conduits, and described structure is positioned at the below of described front surface; Described first conduit is perpendicular to described major axis, and when the infrared ray incident angle that penetrates towards described front surface when 0 degree is between 61 degree, described infrared feedback reflection bar reflects described infrared ray to required reflection light quantity.
The present invention also relates to make the method for the infrared feedback reflection unit that is used for wide screen optical touch panel, may further comprise the steps: form a slice cube corner feedback reflector plate, it has front surface, the back side, first direction and second direction, described first direction is vertical with described second direction, and cuts out the infrared feedback reflection bar along described second direction from described cube corner feedback reflector plate.
The present invention also relates to a kind of wide screen optical touch panel, comprise: first edge with respect to second edge at described first edge, the 3rd edge with respect to the 4th edge at described the 3rd edge, described the 3rd edge and described the 4th edge-perpendicular are in described first edge and described second edge; Two ultrared sensing devices, its position are at the two ends near described first edge, and described two ultrared sensing devices can be launched infrared ray and arrive described at least position, second edge and energy receiving infrared-ray; Infrared feedback reflection unit, it is positioned on described second edge, and described infrared feedback reflection unit has the infrared feedback reflection bar, and described infrared feedback reflection bar has the front surface towards described two ultrared sensing devices, the back side and major axis; Described infrared feedback reflection bar is formed by cube corner feedback reflection configuration, and described cube corner feedback reflection configuration has at least one first conduit and at least two second conduits, and described cube corner feedback reflection configuration is positioned at the below of described front surface; Described first conduit is perpendicular to described major axis, and described infrared feedback reflection unit is from the infrared ray along each position reflection capacity of described infrared feedback reflection unit, and its volume reflection can be detected by described two ultrared sensing devices.
The present invention relates to the wide screen optical touch panel of the infrared feedback reflection unit of the method manufacturing of using aforementioned manufacturing infrared feedback reflection unit in addition.
Infrared feedback reflection unit of the present invention also can comprise one deck color layers that the infrared ray transmittance is good, and optionally comprises backing layer and adhesion layer etc.
The invention enables aspect can adopt simple and easy manufacture, and can finish with low cost than (wide screen) optical touch panel.
Description of drawings
Fig. 1 is a wide screen optical touch panel synoptic diagram of the present invention.
Fig. 2 for optical touch panel when infrared feedback reflection unit is all installed in first, second, third edge, the synoptic diagram of perform region (be ultrared sensing device institute energy reconnaissance range).
Fig. 3 is an infrared feedback reflection unit stereographic map of the present invention.
Fig. 4 is the cube corner feedback reflection configuration enlarged drawing in the infrared feedback reflection unit of the present invention, and observed ray is the back side 305 directions from infrared feedback reflection unit.
Fig. 5 is the lateral plan of a kind of cube corner feedback reflection configuration of adopting in the infrared feedback reflection unit of the present invention.
Fig. 6 is the effect synoptic diagram of cube corner feedback reflection configuration feedback reflected infrared.
Fig. 7 is the cube corner feedback reflection configuration enlarged drawing in the infrared feedback reflection unit of the present invention, and observed ray is the back side 305 directions from infrared feedback reflection unit, and becomes vertical direction with Fig. 5.
A kind of cube corner feedback reflection configuration synoptic diagram of Fig. 8 for being adopted in the infrared feedback reflection unit of the present invention.
Fig. 9 is that infrared feedback reflection unit of the present invention is at the local feedback reflective condition of incident angle when about 30 degree are spent with 60.
Figure 10 is not to be the infrared feedback reflection bar that scales off along second direction, is approximately 30 degree and 60 feedback reflective conditions when spending in incident angle.
Embodiment
Below be preferred embodiment of the present invention, and with graphic explanation, element numbers arranged on graphic, represent the assembly of correspondence.
Fig. 1 shows a wide screen optical touch panel 1, and it has the perform region that is formed by four surrounded by edges.The two ends at first edge 11 join with the 3rd edge 13 and the 4th edge 14 with respect to described the 3rd edge respectively, second edge 12 is with respect to described first edge 11, the two ends at second edge 12 also join with described the 3rd edge 13 and the 4th edge 14, and described first edge 11 roughly is vertical with described the 3rd edge 13 with the 4th edge 14 with second edge 12; Therefore form a roughly rectangular perform region.Two two ends that ultrared sensing device 21,22 is arranged near first edge 11.Described ultrared sensing device 21,22 comprises that respectively can be launched a ultrared LED, its be an energy to around launch ultrared pointolite, and one can detect from the infrared ray of all directions and changes into electrical signal to the operation processing unit infrared ray checking device of (figure does not show).Be close to the position of described second edge 12, be provided with an infrared feedback reflection unit 31 towards the perform region.
So-called feedback reflection is meant that incident ray almost can both reflect back along the path of incident light.Be formed into firing angle (incident angle) θ between the surface of incident ray and institute's directive, it is defined as the incident direction of light and the folded angle of the normal to a surface direction that light is injected (normal direction).For the panel that a length L and width W ratio are 16: 9 (Fig. 1), the formed incident angle in position that the infrared ray arrival right opposite that sends from ultrared sensing device 21 is positioned on described second edge 12 is minimum, it is 0 degree, be maximum and arrive the formed incident angle θ ' of the other end (diagonal angle) that is positioned on described second edge 12, be about 60.6 degree.General feedback reflection unit is 60 can't reflection ray (as shown in Figure 10 right photograph) when spending in incident angle.Feedback reflection unit 31 of the present invention, still has the infrared ray that reflection comes from ultrared sensing device 21,22 and returns original route, the function that 21,22 detectings of ultrared sensing device are obtained between 0 between about 61 degree the time in incident angle.
When ultrared object is blocked in existence in the panel perform region that Fig. 1 shows, the infrared ray that LED from ultrared sensing device 21 sends will be blocked in the zone of incident angle between θ 1 and θ 2 and can not arrive feedback reflection unit 31, and therefore the infrared ray that is not reflected by feedback reflection unit 31 is returned to ultrared sensing device 21; Similarly, the infrared ray that sends by the LED on the ultrared sensing device 22 in the zone of incident angle between θ 3 and θ 4 because blocked, so the infrared ray that is not reflected passes to ultrared sensing device 22 by object; After the infrared ray that reflects back is converted into electrical signal,, just can obtain the tram of object in the panel perform region by the computing of operation processing unit.Preferable enforcement state is to be close to described the 3rd edge 13 and the 4th edge 14 position towards the perform region, an infrared feedback reflection unit 32,33 also is set respectively, and will make so that any one is positioned at the object of the shield lights of perform region can both be by the position that detects it (please refer to Fig. 1, Fig. 2).
Infrared feedback reflection unit 31 of the present invention in incident angle between 0 to about 61 the degree between the time, still the infrared reflection that comes from ultrared sensing device 21,22 of capacity can be returned original route, 21,22 detectings of ultrared sensing device are obtained, and it is feasible therefore wide screen optical touch panel to be become.Infrared feedback reflection unit 32,33 also can have with spline structure and function with feedback reflection unit 31.This feedback reflection function in big incident angle is to finish: Fig. 3 by following technology to show that described infrared feedback reflection unit 31 has infrared feedback reflection bar 301, described infrared feedback reflection bar 301 is formed by cube corner feedback reflection configuration 5, described infrared feedback reflection bar 301 has the front surface 303 towards described two ultrared sensing devices 21,22, the face injected of light just, and have the back side 305, and the major axis X that represents the longitudinal axis bearing of trend of described reflection bar 301.The back side 305 is meant the zone of the bottommost of this infrared feedback reflection bar 301, not necessarily a plane.
Cube corner feedback reflection configuration 5 is substantially most similar pyramids or is constituted its big I identical or incomplete same (Fig. 4, Fig. 5) by one jiao of cube corner that downcuts of hollow square.This kind cube corner structure has prism function (Fig. 6), the light that is incident to front surface 303 passes the material that forms the cube corner structure and (is generally and can sees through visible light and ultrared high molecular polymer, as polymethylmethacrylate, be PMMA-polymethylmethacrylate etc.), produce refraction, when arriving the cube corner surface, run into the comparatively sparse material of light Media density (a less optically dense medium), be generally air, and the generation total reflection, roughly the angle with incident light is identical to make the angle that reflected light penetrates.Very small because of this cube corner structure again, be distributed in front surface 303 belows of this feedback reflection bar 301, so almost being path along incident, the infrared ray that is reflected is returned to ultrared sensing device 21,22.The principle of relevant this part feedback reflection can announce the 5th, 200 with reference to United States Patent (USP), No. 851.
Fig. 4 shows the cube corner feedback reflection configuration of seeing from the back side 305 directions of described feedback reflection bar 301, this structure has directivity, Fig. 7 and Fig. 4 are the structure of seeing from the back side 305 directions of feedback reflection bar 301 equally, but the angle of watching is that paper is horizontally rotated 90 degree, the arrangement difference of seeing from both direction.Because tool directivity, this structure ability of reflection ray in different directions are distinguishing.
Fig. 4 is the shape that illustrative infrared feedback reflection bar 301 is seen from back side direction, it is formed with most first conduits 501 and most second conduits 502, adjacent and groove that symmetrical triangular shape plane institute double team goes out is chained together and forms described first conduit 501 by two of many groups of adjacent cube corner structures, described first conduit 501 is perpendicular to major axis X, make two adjacent triangle projective planums of adjacent cube corner structure become symmetrical plane along first conduit 501, be defined as first direction 601.The direction (plane) vertical with first direction 601 is defined as second direction 602.Described first direction 601 and described second direction 602 are the front surface 303 mutually perpendicular planes with feedback reflection bar 301.502 of second conduits are the adjacent but grooves that go out of symmetrical triangular shape plane institute double team mutually of two along many groups of adjacent cube corner structures, are chained together and form; Fig. 4 and Fig. 8 show with regard to single cubic corner structure, described second conduit 502 is triangle projective planum two the faces extensions in addition in addition along first conduit, 501 places, so with regard to single cubic corner structure, it has one first conduit 501 and two second conduits 502.
Be positioned at the cube corner feedback reflection configuration of front surface 303 belows of infrared feedback reflection bar 301, can be as shown in Fig. 8, be three right-angle triangles formed similar pyramidal structures of joining in the place, right angle, angle a, the b at three angles of pyramid bottom, b, c among the c about equally, for example b, c are approximately 54～56 degree.All cube corner structures that are positioned at front surface 303 belows not necessarily all are size or moulding angle homogeneous phase structure together.And infrared feedback reflection bar 301 normally downcuts and gets along described second direction 602 from the formed flaky material of whole piece cube corner feedback reflection configuration.
When infrared ray feedback reflection bar is to cut and when obtaining said structure along described second direction 602, ultrared sensing device device 21,22 infrared rays of being launched from 11 two ends, first edge that are positioned at this wide-screen panel, when being incident upon the front surface 303 of described infrared feedback reflection unit 31, described feedback reflection unit 31 also can reflect the infrared ray of capacity at the diagonal position place of ultrared sensing device 21,22 (incident angle θ ' be about 60.6 to spend), so can make this ultrared sensing device device 21,22 detect the object that is positioned at arbitrary position on the Touch Screen smoothly.Fig. 9 shows that infrared feedback reflection configuration of the present invention is about 30 degree with 60 when spending in incident angle, all can reflect the photo of capacity light.Figure 10 shows the contrast test result: as the major axis X of infrared ray feedback reflection bar 301 and non-perpendicular to first direction 601, and when being perpendicular to second direction 602, that is when described infrared feedback reflection bar 301 be that material along first direction 601 from a sheet infrared feedback reflection configuration downcuts, but not when described second direction 602 cuts, the infrared feedback reflection unit 31 that downcuts is 30 when spending in incident angle, still can reflected infrared, but in incident angle is 60 when spending, then fully can not reflected infrared.
As shown in Figure 3, aforementioned feedback reflection unit 31,32,33 still can cooperate the color of screen or panel border, the whole cube corner feedback reflection configurations 5 of front surface 303 belows or the some of the cube corner feedback reflection configuration in the certain depth scope are made particular color, for example mix black or brown coloring agent (colorant) in macromolecular material, reshaping goes out cube corner feedback reflection configuration 5.Perhaps, above front surface 303, cover one deck color layers 307, be generally dark resin ink lay, for example brown or black, described color layers 307 or form color cube corner feedback reflection configuration 5 arranged, can make infrared penetration, preferable infrared penetration rate is more than 70%, be more preferred from more than 80%, also can make it have the effect that absorbs visible light; With the function that does not influence this infrared feedback reflection bar 301 is principle.
Aforementioned feedback reflection unit 31,32,33 still can be optionally and attach one deck backing layers 309 at the back side 305 of infrared feedback reflection bar 301, backing layer can be the plate object that a thermoplastics is made, be used for strengthening the structure of described feedback reflection unit, or further provide the coating adhesive agent required plane.For ease of described infrared feedback reflection unit 31,32,33 being installed up to the perform region periphery of wide-screen panel, can on described backing layer 309, apply one deck adhesion layer 311, so can be adhered to described second, third and the 4th edge 12,13,14.
As described above, the infrared feedback reflection bar 301 of infrared feedback reflection unit 31,32,33 of the present invention is to downcut from whole piece cube corner feedback reflection configuration upper edge specific direction, for ease of making, preferably mode be with described color layers 307, backing layer 309 and adhesion layer 311 before infrared feedback reflection bar 301 downcuts into strips from flaky material, first layering applies or is pasted on this flaky material.For example: earlier the back side 305 peripheries of whole piece backing layer 309 with whole piece cube corner feedback reflective sheet are engaged in thermal welding modes such as high frequencies, apply adhesion layer 311 again on the backing layer 309 of full wafer, adhesion layer 311 can be a heat-resisting pressure sensitive glue (PSA); As for the step that covers dark color layers 307 at described front surface 303, can before backing layer 309 weldings or after the welding, carry out.
Cube corner feedback reflection configuration 5 of the present invention also can form circular arc with the cube corner tip.The above is if remake the modification change under the prerequisite of spirit of the present invention, all should think to be covered by disclosed content.
The primary clustering symbol description
1 infrared optical contact panel, 301 infrared feedback reflection bars
11 first edges, 303 front surfaces
305 back sides, 12 second edges
13 the 3rd edges, 307 color layers
14 the 4th edges, 309 backing layers
21 infrared detectors, 311 adhesion layers
22 infrared detectors, 501 first conduits
31 infrared feedback reflection units, 502 second conduits
32 infrared feedback reflection units, 601 first directions
33 infrared feedback reflection units, 602 second directions
5 cube corner feedback reflection configuration X major axis
Claims (31)
1. infrared feedback reflection unit that is used for wide screen optical touch panel comprises:
The infrared feedback reflection bar,
Described infrared feedback reflection bar has front surface, the back side and major axis,
Described infrared feedback reflection bar is formed by cube corner feedback reflection configuration, and described cube corner feedback reflection configuration has at least one first conduit and at least two second conduits, and described structure is positioned at the below of described front surface;
Described first conduit is perpendicular to described major axis, and
When the ultrared incident angle that penetrates towards described front surface when 0 degree is between 61 degree, described infrared feedback reflection bar reflects the infrared ray of required reflection light quantity.
2. infrared feedback reflection unit according to claim 1, the described front surface below interior cube corner feedback reflection configuration of certain depth scope at least is colored, and the infrared penetration rate of the described cube corner feedback reflection configuration that is colored is at least 70%.
3. infrared feedback reflection unit according to claim 1 further comprises the color layers of the described front surface that is positioned at described infrared feedback reflection bar, and the infrared penetration rate of described color layers is at least 70%.
4. according to the infrared feedback reflection unit of claim 2, the described cube corner feedback reflection configuration that is colored is a black or brown.
5. according to the infrared feedback reflection unit of claim 3, described color layers is a black or brown.
6. according to each described infrared feedback reflection unit in the claim 1 to 5, further comprise backing layer, it is attached to the described back side of described infrared feedback reflection bar.
7. infrared feedback reflection unit according to claim 6, wherein, described infrared feedback reflection unit further comprises adhesion layer, it is positioned at one of described backing layer side, and relative with opposite side towards the described back side of described infrared feedback reflection bar.
8. infrared feedback reflection unit according to claim 6 wherein, is an air between the described cube corner feedback reflection configuration of described infrared feedback reflection bar and the material in the space between described backing layer.
9. a manufacturing is used for the method for the infrared feedback reflection unit of wide screen optical touch panel, comprises the following steps:
Form a slice cube corner feedback reflector plate, this reflector plate has front surface, the back side, and first direction and second direction, described first direction is vertical with described second direction, and
Cut the infrared feedback reflection bar along described second direction from described cube corner feedback reflector plate.
10. the method for manufacturing infrared feedback reflection unit according to claim 9, wherein, described cube corner feedback reflector plate is to form out with the macromolecular material that is colored earlier at least in a certain depth scope, and has at least 70% infrared penetration rate.
11. the method for manufacturing infrared feedback reflection unit according to claim 10, the wherein said cube corner feedback reflector plate that is colored part is a black or brown.
12. the method for manufacturing infrared feedback reflection unit according to claim 9, wherein, before cutting the step of infrared feedback reflection bar from described cube corner feedback reflector plate, further comprise and adhere to the step of backing layer to the described back side of described infrared feedback reflector plate along described second direction.
13. method according to claim 10 or 11 described manufacturing infrared feedback reflection units, wherein, before cutting the step of infrared feedback reflection bar from described cube corner feedback reflector plate, further comprise and adhere to the step of backing layer to the described back side of described infrared feedback reflector plate along described second direction.
14. the method for manufacturing infrared feedback reflection unit according to claim 12 wherein, before cutting the step of infrared feedback reflection bar along described second direction from described cube corner feedback reflector plate, further comprises the following steps:
Coating one deck adhesive agent is in a side of described backing layer, and this side is relative with opposite side towards the described back side of described infrared feedback reflection bar.
15. the method for manufacturing infrared feedback reflection unit according to claim 13 wherein, before cutting the step of an infrared feedback reflection bar along described second direction from described cube corner feedback reflector plate, further comprises the following steps:
Coating one deck adhesive agent is in a side of described backing layer, and this side is relative with opposite side towards the described back side of described infrared feedback reflection bar.
16., wherein, before cutting the step of an infrared feedback reflection bar from described cube corner feedback reflector plate, further comprise the following steps: along described second direction according to the method for claim 9,12 or 14 described manufacturing infrared feedback reflection units
Adhere to the described front surface of one deck color layers in described infrared feedback reflector plate, the infrared penetration rate of described color layers is at least 70%.
17. the method for manufacturing infrared feedback reflection unit according to claim 16, described color layers are black or brown.
18. the method for manufacturing infrared feedback reflection unit according to claim 12, wherein said backing layer are the modes by the periphery of the described infrared feedback reflector plate of thermal welding, are attached to the described back side of described infrared feedback reflector plate.
19. the method for manufacturing infrared feedback reflection unit according to claim 13, wherein said backing layer are the modes by the periphery of the described infrared feedback reflector plate of thermal welding, are attached to the described back side of described infrared feedback reflector plate.
20. a wide screen optical touch panel comprises:
First edge with respect to second edge at described first edge,
The 3rd edge with respect to the 4th edge at described the 3rd edge, described the 3rd edge and described the 4th edge-perpendicular are in described first edge and described second edge;
Two ultrared sensing devices, its position are at the two ends near described first edge, and described two ultrared sensing devices can be launched infrared ray to described second edge and receiving infrared-ray;
Infrared feedback reflection unit, it is positioned at described second edge,
Described infrared feedback reflection unit has the infrared feedback reflection bar, and described infrared feedback reflection bar has the front surface towards described two ultrared sensing devices, the back side and major axis;
Described infrared feedback reflection bar is formed by cube corner feedback reflection configuration, and described cube corner feedback reflection configuration has at least one first conduit and at least two second conduits, and described cube corner feedback reflection configuration is positioned at the below of described front surface;
Described first conduit is perpendicular to described major axis, and
Described infrared feedback reflection unit is from reflecting the infrared ray of capacity along each position of described infrared feedback reflection unit, and this volume reflection can be detected by described two ultrared sensing devices.
21. wide screen optical touch panel as claimed in claim 20, wherein, the length breadth ratio of described panel is 16: 9, and the infrared ray maximum incident angle that described ultrared sensing device is emitted to described second edge is about 60.6 degree.
22. as claim 20 or 21 described wide screen optical touch panels, further comprise two infrared feedback reflection units, it lays respectively at described the 3rd edge and described the 4th edge, and the front surface of described two infrared feedback reflection units toward each other.
23. wide screen optical touch panel as claimed in claim 22, wherein: described infrared feedback reflection unit has color layers, and it is positioned on the described front surface of described infrared feedback reflection bar, and the infrared penetration rate of described color layers is at least 70%.
24. wide screen optical touch panel as claimed in claim 23, wherein, described color layers is a black or brown.
25. wide screen optical touch panel as claimed in claim 22, wherein: the described cube corner feedback reflection configuration below described front surface at least one certain depth scope is colored, and the described infrared penetration rate that is colored part is at least 70%.
26. wide screen optical touch panel as claimed in claim 22, wherein, described infrared feedback reflection unit has backing layer, and described backing layer is attached to the described back side of described infrared feedback reflection bar.
27. wide screen optical touch panel as claimed in claim 26, wherein, described infrared feedback reflection unit has the side that adhesion layer is overlying on described backing layer, and is relative with opposite side towards the described back side of described infrared feedback reflection bar.
28. wide screen optical touch panel as claimed in claim 26 wherein, is an air between the described cube corner feedback reflection configuration of described infrared feedback reflection bar and the material in the space between described backing layer.
29. wide screen optical touch panel as claimed in claim 23, wherein, described infrared feedback reflection unit has backing layer, described backing layer is attached to the described back side of described infrared feedback reflection bar, and adhesion layer, it is overlying on a side of described backing layer, and is relative with opposite side towards the described back side of described infrared feedback reflection bar.
30. wide screen optical touch panel as 25 of claims the, wherein, described infrared feedback reflection unit has a backing layer, described backing layer is attached to the described back side of described infrared feedback reflection bar, and adhesion layer, it is overlying on a side of described backing layer, and is relative with opposite side towards the described back side of described infrared feedback reflection bar.
31. a wide screen optical touch panel comprises:
First edge with respect to second edge at described first edge,
The 3rd edge with respect to the 4th edge at described the 3rd edge, described the 3rd edge and described the 4th edge-perpendicular are in described first edge and described second edge;
Two ultrared sensing devices, its position are at the two ends near described first edge, and described two ultrared sensing devices can be launched infrared ray to described second edge and receiving infrared-ray;
Infrared feedback reflection unit, it is positioned at described second edge, wherein: described infrared feedback reflection unit be according to claim 9 to 12 with 14 in each described manufacture method manufacturing and get.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101464214A CN101907949A (en) | 2009-06-02 | 2009-06-02 | Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel |
| KR20117031458A KR20120027427A (en) | 2009-06-01 | 2010-06-01 | An infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device |
| US13/375,414 US20120097854A1 (en) | 2009-06-01 | 2010-06-01 | Infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device |
| PCT/US2010/036794 WO2010141395A2 (en) | 2009-06-01 | 2010-06-01 | An infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device |
| JP2012514026A JP2012529113A (en) | 2009-06-01 | 2010-06-01 | Infrared retroreflective device used for high aspect ratio optical touch panel, method of manufacturing the same, and high aspect ratio touch panel using such device |
| EP20100783887 EP2438500A2 (en) | 2009-06-01 | 2010-06-01 | An infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101464214A CN101907949A (en) | 2009-06-02 | 2009-06-02 | Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101907949A true CN101907949A (en) | 2010-12-08 |
Family
ID=43263423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101464214A Pending CN101907949A (en) | 2009-06-01 | 2009-06-02 | Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101907949A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915161A (en) * | 2012-10-31 | 2013-02-06 | Tcl通力电子（惠州）有限公司 | Infrared touch device and identification method thereof |
| CN103135856A (en) * | 2011-12-05 | 2013-06-05 | 纬创资通股份有限公司 | Optical touch device and frame thereof |
-
2009
- 2009-06-02 CN CN2009101464214A patent/CN101907949A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135856A (en) * | 2011-12-05 | 2013-06-05 | 纬创资通股份有限公司 | Optical touch device and frame thereof |
| CN102915161A (en) * | 2012-10-31 | 2013-02-06 | Tcl通力电子（惠州）有限公司 | Infrared touch device and identification method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3118664B1 (en) | Micro mirror array, manufacturing method of the micro mirror array, and floating display device including the micro mirror array | |
| US8659561B2 (en) | Display device including optical sensing frame and method of sensing touch | |
| US9366565B2 (en) | Light out-coupling arrangement and a touch sensitive system comprising the out-coupling arrangement | |
| TWI496058B (en) | Optical touchscreen | |
| US20210149094A1 (en) | High incidence angle retroreflective sheeting | |
| CN103631450A (en) | Touch display panel and optical touch panel thereof | |
| TW201933073A (en) | Thin couplers and reflectors for sensing waveguides | |
| WO2016180027A1 (en) | Optical touch device and touch display device having the same | |
| WO2017138863A1 (en) | Assembly tools for panel and touch-sensing system | |
| CN103261933A (en) | Light-collecting plate, and light-receiving device and light-emitting device using same | |
| TWI534686B (en) | Optical touch screen | |
| WO2010048679A1 (en) | A transmissive body | |
| CN109934157A (en) | A kind of backlight module, display device and electronic equipment | |
| JP7554311B2 (en) | Position detection system, position detection method, angle detection method, marker | |
| US11018273B2 (en) | Photosensitive reflector, laser induced touch device and laser touch detection method | |
| CN103975257A (en) | Contact prevention film, touch panel, and display device cover panel | |
| CN101907949A (en) | Infrared feedback reflection unit, manufacturing method thereof and wide screen optical touch panel | |
| US20120097854A1 (en) | Infrared retroreflecting device used for a high-aspect-ratio optical touch panel, the method of manufacturing the same and a high-aspect-ratio touch panel using such device | |
| CN110088673A (en) | A kind of optical film layer structure, backlight module, display device and electronic equipment | |
| US9261642B2 (en) | Light guide member and display device | |
| US20170357347A1 (en) | Touch sensitive projection screen | |
| JPH0850526A (en) | Input device | |
| KR101723895B1 (en) | Infrared touch screen system for enhancing accuracy of touch signal detection | |
| JP2017213715A (en) | Decorative sheet | |
| CN105676339A (en) | Side-incoming type backlight unit and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |