CN203480476U - Infrared touch screen - Google Patents
Infrared touch screen Download PDFInfo
- Publication number
- CN203480476U CN203480476U CN201320546184.2U CN201320546184U CN203480476U CN 203480476 U CN203480476 U CN 203480476U CN 201320546184 U CN201320546184 U CN 201320546184U CN 203480476 U CN203480476 U CN 203480476U
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- infrared
- reflecting surface
- light guide
- guide member
- light
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- 239000000463 material Substances 0.000 claims description 6
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- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 abstract description 4
- 239000011521 glass Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 210000003205 muscle Anatomy 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
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- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
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Abstract
The utility model provides an infrared touch screen, which comprises a circuit board and a light guide part, wherein an infrared transmitting element and an infrared receiving element are fixed on the circuit board, light which is transmitted from the infrared transmitting element is guided to the infrared receiving element through the light guide part, and the light guide part which is arranged on the end of the infrared transmitting element and/or arranged on the end of the infrared receiving element comprises a first reflecting surface and a second reflecting surface. Because the structural design of the light guide part, the infrared touch screen can effectively prolong optical path, further can increase distance of infrared pipe components, and effectively saves making cost. Simultaneously, the infrared touch screen further can effectively filter big angle infrared signals, further can eliminate optical resistance components, increases processing speed, and saves processing cost.
Description
Technical field
The utility model relates to touch-screen field, espespecially a kind of infrared touch panel.
Background technology
The structure of traditional infrared touch-screen adopts the version of squeezing aluminium frame, hornblock, infrared filtering strip and sweep unit combination conventionally.The indoor design of described crowded aluminium frame has the muscle of protrusion, and for fixedly infrared filtering strip and sweep unit, hornblock is combined into whole screen for squeezing aluminium frame assembly.Also the combination that to have such as application number be the employing leaded light mirror, transmitting mirror or leaded light mirror and the transmitting mirror that provide in 201210039405.7 is formed light element, yet above-mentioned existing version is that wherein the quantity of structural member is more, form more complicated.
Described infrared filtering strip is positioned at the place ahead of infrared transmitting tube or infrared receiving tube, for filtering visible ray, and allows the infrared light of special frequency channel pass freely through.Because infrared receiving tube, over against infrared filtering strip setting, so can receive the very Infrared of wide-angle, meanwhile, makes the infrared light of more non-infrared transmitting tube transmitting received.In order to filter unnecessary infrared light, need on hardware, do anti-light and process, yet so anti-light processing increases product cost, affects again the processing speed of touch-screen.Therefore, need those skilled in the art that a kind of cost that do not increase is provided, can guarantee the infrared touch panel of processing speed again simultaneously.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of infrared touch panel, and it is simple in structure, can save the manufacturing cost of existing infrared touch panel.
The utility model provides a kind of infrared touch panel, comprises circuit board and light guide member, is fixed with infrared emission component and infrared receiver component on described circuit board, and the photoconduction that described light guide member is launched described infrared emission component is to described infrared receiver component; The light guide member that is positioned at infrared emission component end comprises the first reflecting surface and the second reflecting surface;
Wherein, the light that described the first reflecting surface sends described infrared emission component reflexes to described the second reflecting surface; The light that described the second reflecting surface carrys out described the first reflecting surface reflection reflexes to the direction at described infrared receiver component place.
The utility model provides a kind of infrared touch panel, comprises circuit board and light guide member, is fixed with infrared emission component and infrared receiver component on described circuit board, and the photoconduction that described light guide member is launched described infrared emission component is to described infrared receiver component; The light guide member that is positioned at infrared receiver component end comprises the first reflecting surface and the second reflecting surface;
Wherein, described the second reflecting surface reflexes to described the first reflecting surface by the light coming from described infrared emission component direction transmitting, and the light that described the first reflecting surface carrys out described the second reflecting surface reflection reflexes to described infrared receiver component.
Further, the light guide member that is positioned at infrared emission component end also comprises the first reflecting surface and the second reflecting surface;
Wherein, be positioned at the second reflecting surface that light that the first reflecting surface of the light guide member of infrared emission component end sends described infrared emission component reflexes to this end; The light that the second reflecting surface of this end carrys out the first reflecting surface reflection of this end reflexes to the direction at described infrared receiver component place.
Further, described the first reflecting surface and/or the second reflecting surface are concave surface.
Further, described light guide member adopts the injection mo(u)lding of infrared filtering material.
Further, described light guide member also comprises first refractive face;
Wherein, the first refractive face of light guide member that is positioned at infrared emission component end is the direction to described infrared receiver component place by the anaclasis of this end second reflecting surface reflection;
The first refractive face that is positioned at the light guide member of infrared receiver component end will reflect next anaclasis to the second reflecting surface of this end from infrared emission component direction.
Further, described light guide member also comprises the second plane of refraction;
Wherein, the light that infrared emission component sends first reflecting surface of this end of directive again after being positioned at the second plane of refraction refraction of light guide member of infrared emission component end;
The light of the first reflecting surface reflection of light guide member that is positioned at infrared receiver component end infrared receiver component described in directive after this end second plane of refraction refraction.
Further, described light guide member has the first groove, and infrared emission component and infrared receiver component are all arranged in this first groove.
Further, the sidewall of described the first groove forms the second plane of refraction.
Further, the outside of described the first groove is also provided with the second groove, and described circuit board is fixed on light guide member by screw, and this screw embeds in this second groove.
Further, the bottom of the bottom of described infrared receiver component and infrared emission component and the first groove is fixed by glue; Described light guide member is fixed on touch pad by glue.
The advantage the utlity model has is:
The utility model provides a kind of infrared touch panel, and it is simple in structure, due to the structural design of its light guide member, can effectively extend light path, and then can increase the spacing of infrared tube components and parts, the manufacturing cost of effectively saving infrared touch panel.The utility model can also effectively filter the infrared signal of wide-angle simultaneously, and further can cancel anti-optic component, and then can promote the processing speed of infrared touch panel, saves the processing cost of infrared touch panel.
Accompanying drawing explanation
The structure of the infrared touch panel that Fig. 1 provides for the utility model forms schematic diagram;
Fig. 2 is the cross section enlarged diagram of the light guide member of infrared emission end of the present utility model or infrared receiving end;
Fig. 3 is the principle explanation schematic diagram that the utility model is realized its function;
Fig. 4 is the light path schematic diagram of conventional touch screen;
Fig. 5 is the light path schematic diagram of infrared touch panel in the utility model;
Fig. 6 is the light path floor map of conventional touch screen;
Fig. 7 is the light path floor map of the utility model touch-screen;
Fig. 8 is the angle schematic diagram of the infrared tube receiving infrared-ray of conventional touch screen;
Fig. 9 is the angle schematic diagram of the infrared tube receiving infrared-ray of the utility model touch-screen.
In figure:
101-circuit board; 102-light guide member; 103-glass plate; 1011-infrared emission component, infrared receiver component; 1020-the second plane of refraction; 1021-the first reflecting surface; 1022-the second reflecting surface; 1023-first refractive face; 1024-the first structure muscle; 1025-the second structure muscle; 201,202-double faced adhesive tape; 203-screw; 301-infrared ray A; 401-infrared ray B; 501-air; 601-infrared tube spacing A; 602-infrared tube spacing B; 701-infrared angle A; 702-infrared angle B; 801-transmission element.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, so that those skilled in the art can better understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
Embodiment 1 provides a kind of infrared touch panel, as depicted in figs. 1 and 2, comprises circuit board 101, light guide member 102 and glass plate 103, and described circuit board 101 is arranged on light guide member 102 by screw 203.On described circuit board 101, be fixed with infrared emission component, infrared receiver component 1011, described light guide member 102 for by the photoconduction of described infrared emission component 1011 transmittings to described infrared receiver component 1011.As shown in Figure 2, the outside that is positioned at the light guide member 102 of infrared emission component end described in the present embodiment comprises the first reflecting surface 1021 in top and the second reflecting surface 1022 in below connecting up and down; And the light guide member of corresponding opposite side infrared receiver component end adopts the structure of existing light guide member, to the corresponding light guide member that is positioned at infrared emission component end, can adopt employing as shown in Figure 4 to squeeze the structure that aluminium frame and hornblock collocation form; Also or can to adopt application number be the light element in 201210039405 patents.Preferably, described the first reflecting surface 1021 and/or the second reflecting surface 1022 are concave surface, and the radian of concave surface can make light generation total reflection and produce to converge.
Wherein, be positioned at the second reflecting surface 1022 that light that the first reflecting surface 1021 of the light guide member of infrared emission component end sends described infrared emission component 1011 reflexes to this end; The light that the second reflecting surface 1022 of this end carrys out the first reflecting surface 1021 reflections of this end reflexes to the direction at described infrared receiver component 1011 places.
Embodiment 2 provides a kind of infrared touch panel, as depicted in figs. 1 and 2, comprises circuit board 101, light guide member 102 and glass plate 103, and described circuit board 101 is arranged on light guide member 102 by screw 203.On described circuit board 101, be fixed with infrared emission component, infrared receiver component 1011, described light guide member 102 for by the photoconduction of described infrared emission component 1011 transmittings to described infrared receiver component.As shown in Figure 2, the outside that is positioned at the light guide member 102 of infrared receiver component end described in the present embodiment comprises the first reflecting surface 1021 in top and the second reflecting surface 1022 in below connecting up and down; And the light guide member of corresponding opposite side adopts the structure of existing light guide member, to the corresponding light guide member that is positioned at infrared emission component end, can adopt employing as shown in Figure 4 to squeeze the structure that aluminium frame and hornblock collocation form; Also or can to adopt application number be the light element in 201210039405 patents.Preferably, described the first reflecting surface 1021 and/or the second reflecting surface 1022 are concave surface, and the radian of concave surface can make light generation total reflection and produce to converge.
Wherein, be positioned at the second reflecting surface 1022 that light that the first reflecting surface 1021 of the light guide member of infrared receiver component end sends described infrared emission component 1011 reflexes to this end; The light that the second reflecting surface 1022 of this end carrys out the first reflecting surface 1021 reflections of this end reflexes to the direction at described infrared receiver component 1011 places.
Embodiment 3 provides a kind of infrared touch panel, combination for embodiment 1 and embodiment 2, as shown in Figure 3, described in, be positioned at infrared emission component end and include with the outside that is positioned at the light guide member 102 of infrared receiver component end the first reflecting surface 1021 in top and the second reflecting surface 1022 in below being connected up and down.
Embodiment 4 provides a kind of infrared touch panel, as shown in Figure 3, improved on the basis of embodiment 3, only be with the difference of embodiment 3, described light guide member 102 also comprises first refractive face 1023, and the medial surface in light guide member framework inner side, is preferably dip plane, as shown in Figure 3, the first refractive face 1023 of light guide member 102 that is positioned at infrared emission component end is the direction to described infrared receiver component place by the anaclasis of this end second reflecting surface 1022 reflections; The first refractive face 1023 that is positioned at the light guide member 102 of infrared receiver component end will reflect next anaclasis to the second reflecting surface 1022 of this end from infrared emission component direction.
Embodiment 5 provides a kind of infrared touch panel, as shown in Figure 3, improved on the basis of embodiment 4, only be with the difference of embodiment 4, described light guide member also comprises the second plane of refraction 1020, for the side in infrared emission component or infrared receiver component, and between infrared emission component or infrared receiver component and the first reflecting surface 1021.Wherein, the light that infrared emission component 1011 sends first reflecting surface 1021 of this end of directive again after being positioned at second plane of refraction 1020 refraction of light guide member 102 of infrared emission component end; The light of the first reflecting surface 1021 reflection of light guide member 102 that is positioned at infrared receiver component end infrared receiver component 1011 described in directive after these end second plane of refraction 1022 refractions.
Embodiment 6 provides a kind of infrared touch panel, as shown in Figure 3, improved on the basis of embodiment 5, only be with the difference of embodiment 5, described light guide member also comprises upper surface, in the top of first refractive face 1023, the first reflecting surface 1021 and the second reflecting surface 1022, described upper surface has the first groove, and described infrared emission component, infrared receiver component 1011 are all arranged in this first groove.
Embodiment 7 provides a kind of infrared touch panel, is improved on the basis of embodiment 6, is only with the difference of embodiment 6, and the sidewall of described the first groove forms the second plane of refraction 1020.
In above embodiment 3～embodiment 7, the whole infrared filtering material of described light guide member injection mo(u)lding ground integrated formed structure, forms integral type leaded light parts, is convenient to processing and fixing.
Embodiment 8 provides a kind of structure of infrared touch panel, as depicted in figs. 1 and 2, comprises a plurality of circuit board 101, light guide member 102 and glass plates 103 for realizing infrared signal transmitting and receiving, and described glass plate is preferably armourplate glass, as touch pad.Described circuit board 101 is in the same plane, and is arranged in light guide member 102, and described glass plate 103 is arranged at the bottom of light guide member 102.
Described circuit board 101 comprises a plurality of infrared emission plates and a plurality of infrared dash receiver, the structure of corresponding a plurality of infrared emission plates and the corresponding light guide member of a plurality of infrared dash receivers can interlacedly be mixed arrangement, and corresponding setting mutually, infrared emission plate and infrared dash receiver are oppositely arranged.Described light guide member 102 is preferably integrated rectangle frame, there are four edge strips, on corresponding edge strip, correspondence arranges each infrared emission plate and infrared dash receiver, infrared emission plate or infrared dash receiver can be all set in an edge strip, also can mutually mix setting, and can be equidistant or not equidistant between each expelling plate and dash receiver, only require each dash receiver or the expelling plate that arrange corresponding thereto to match with it.On each infrared emission plate, be all welded with infrared emission component 1011, for launching infrared ray, on each infrared dash receiver, be all welded with infrared receiver component 1011, for receiving infrared-ray.
As shown in Figure 2, the four edges strip adoption infrared filtering material once injection moulding of light guide member 102, can be used as structural member frame, and bearer circuit plate 101, plays the effect of support structure, can be used as again ultrared printing opacity frame.Light guide member 102 cross sections as shown in Figure 2, have first refractive face 1023, are the medial surface tilting; Relatively have lateral surface with first refractive face 1023, lateral surface comprises that the first reflecting surface 1021 in top and the second reflecting surface 1022, the second reflectings surface 1022 and the first reflecting surface 1021 in below that connect are up and down concave surface; There is the upper surface in top, recessed first groove that is embedded with of upper surface, wherein the sidewall of the direction of side outward of the first groove is dip plane, forms the second plane of refraction 1020; The first groove is used for arranging infrared emission component or infrared receiver component 1011; The first groove away from the sidewall of first refractive face 1023, be relatively inclined wall, be the second plane of refraction 1020; Also have lower surface, the shape of lower surface is not limit, and can be plane.Each face is the medium face that infrared light transmission material contacts with air above.Wherein the radian of the radian of the first reflecting surface 1021 and the second reflecting surface 1022 is condition and concave mirror optically focused principle accurate Calculation gained that total reflection occurs when infrared light transmission material internal transmits according to Infrared.Wherein total reflection condition is light when light close (being that the refractive index of light in this medium is large) medium is mapped to light and dredges the interface of (being that light refractive index in this medium is little) medium, and when angle of incidence of light is greater than critical angle, light is all reflected back toward in former medium.Concave mirror optically focused principle be light at medium face generation reflex time, incident angle equals refraction angle, in the present embodiment, the radian of the first reflecting surface 1021 and the second reflecting surface 1022 are concave surface, and adopt minute surface, so can produce convergence effect.The second plane of refraction 1020 and first refractive face 1023 are infrared ray medium faces while transmitting between edge strip inside and air.The four edges bar link of light guide member 102 is as a whole, cannot take apart, does not need secondary mechanical processing.The integral body of the light guide member 102 in the present embodiment structure that is formed in one.
As shown in Figure 2, described a plurality of circuit board 101 is all fixed on light guide member 102 by screw 203, on the upper surface of described light guide member 102, also there is the second groove, this second groove is that the first structure muscle 1024, the second structure muscle 1025 form by the inside and outside two-strip structure muscle being oppositely arranged, and the side of this second groove in second plane of refraction 1020 place the first grooves.Double faced adhesive tape 202 is all posted in the bottom of the infrared emission component of each circuit board 101 and infrared receiver component 1011, plays the effect of fixing circuit board 101 in the first groove of light guide member 102 of pasting.As shown in Figure 2, light guide member 102 bottoms are pasted and are fixed to glass plate 103 tops by double faced adhesive tape 201.
As shown in Figure 3, the relative both sides edge strip of light guide member 102 is with respect to the Central Symmetry setting of touch-screen, the principle of work and power of the present embodiment for convenience of explanation, and the left part in Fig. 3 of usining, as transmit direction, is usingd right side part as receive direction, is elaborated.The infrared ray A301 of infrared emission component 1011 transmitting, enters into the inside of light guide member 102 through the refraction of the second plane of refraction 1020.This infrared ray A301 directive the first reflecting surface 1021, there is total reflection and change optical path direction in infrared ray A301, the infrared ray of dispersing is converged to certain angle on the first reflecting surface 1021 simultaneously, strengthens infrared light brightness.Then, infrared ray A301 directive the second reflecting surface 1022, on the second reflecting surface 1022, again there is total reflection and change optical path direction in infrared ray A301, infrared ray A301 directive first refractive face 1023, and the refraction of process first refractive face 1023 enters into the air on glass plate 103 surfaces and propagates.
As shown in Figure 3, the right side receiver side of touch-screen receives the infrared ray A301 of left side emitting side, infrared ray A301 enters into the inside of light guide member 102 after the refraction of first refractive face 1023, directive the second plane of refraction 1020 after the total reflection of the second reflecting surface 1022 and the first reflecting surface 1021 again, infrared ray A301 injects the infrared receiver component 1011 that receives edge strip after reflecting on the second plane of refraction 1020, finally receive one from the infrared signal of left side emitting side transmitting.
In order to further illustrate advantage of the present utility model, will compare explanation to the utility model and conventional touch screen version below.
As shown in Figure 4, for the infrared ray B401 of traditional large scale infrared touch panel sends from infrared emission component 1011, enter into the propagation distance of air 501 after transmission element 801, defining this distance is light path.As shown in Figure 5, the infrared ray A301 of the infrared touch panel providing for embodiment 7 sends from infrared emission component 1011, enters into the light path of air 501 after light guide member 102.In order to get more information about the meaning of light path, the light path of section is transformed in plane, respectively as shown in Figure 6 and Figure 7, because the transmission element of traditional infrared touch-screen is flake structure, the utility model adopts light guide member 102 in emission process and receiving course, all to provide the process of twice total reflection and twice refraction for infrared ray A301, and the light path of infrared ray A301 is significantly extended.The space of infrared touch panel generation touch operation is in the air 501 outside transmission element 801 or light guide member 2, when the spacing of the infrared signal forming in air 501 is less than the diameter that touches object, touches object and touch operation can occur.The signal that spacing is less, the touch article diameters needing during touch is less.As shown in Figure 6 and Figure 7, because infrared emission component 1011 transmitting lighting angles are tapered light beams, larger light path can cover wider range of size, forms the signal that spacing is less in air 501.Further, determine while touching object diameter dimension, the infrared tube spacing A601 of the ratio traditional infrared screen that infrared tube spacing B602 of the present utility model can do is larger.Further, it is large that infrared tube spacing B602 of the present utility model becomes, and the infrared tube quantity that the infrared touch panel of same size needs tails off, and has saved to a certain extent the manufacturing cost of infrared touch panel.
As shown in Figure 8, the infrared angle A701 of infrared emission component 1011 transmittings of conventional touch screen, enters in air 501 through transmission element 801, and infrared angle A701 does not change.The reversibility of propagating according to light path, the infrared angle A701 that the infrared tube components and parts 1011 of conventional touch screen receive can not change yet.
As shown in Figure 9, the infrared ray A301 of infrared emission component of the present utility model 1011 transmittings in light guide member 102 inside after twice total reflection, penetrating first refractive face 1023 enters in air 501, enter the infrared angle B702 in air 501, be subject to the effect of converging of the first reflecting surface 1021, restrained and dwindle.The reversibility of propagating according to light path, the infrared angle B702 that infrared emission component 1011 of the present utility model receives is the low-angle dwindling.Infrared angle B702 comparison by infrared angle A701 and the touch-screen of the present utility model of conventional touch screen, the infrared emission component of the infrared touch panel that the utility model provides can only receive the glass plate 103 low-angle infrared signals in overhead, the infrared signal of all the other wide-angles is effectively filtered out, further, can cancel anti-optic component, promote the processing speed of infrared touch panel, save the processing cost of touch-screen.
The above embodiment is only the preferred embodiment for absolutely proving that the utility model is lifted, and protection domain of the present utility model is not limited to this.Being equal to that those skilled in the art do on the utility model basis substitutes or conversion, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (11)
1. an infrared touch panel, comprises circuit board and light guide member, is fixed with infrared emission component and infrared receiver component on described circuit board, and the photoconduction that described light guide member is launched described infrared emission component is to described infrared receiver component; It is characterized in that, the light guide member that is positioned at infrared emission component end comprises the first reflecting surface and the second reflecting surface;
Wherein, the light that described the first reflecting surface sends described infrared emission component reflexes to described the second reflecting surface; The light that described the second reflecting surface carrys out described the first reflecting surface reflection reflexes to the direction at described infrared receiver component place.
2. an infrared touch panel, comprises circuit board and light guide member, is fixed with infrared emission component and infrared receiver component on described circuit board, and the photoconduction that described light guide member is launched described infrared emission component is to described infrared receiver component; It is characterized in that, the light guide member that is positioned at infrared receiver component end comprises the first reflecting surface and the second reflecting surface;
Wherein, described the second reflecting surface reflexes to described the first reflecting surface by the light coming from described infrared emission component direction transmitting, and the light that described the first reflecting surface carrys out described the second reflecting surface reflection reflexes to described infrared receiver component.
3. infrared touch panel according to claim 2, is characterized in that, the light guide member that is positioned at infrared emission component end also comprises the first reflecting surface and the second reflecting surface;
Wherein, be positioned at the second reflecting surface that light that the first reflecting surface of the light guide member of infrared emission component end sends described infrared emission component reflexes to this end; The light that the second reflecting surface of this end carrys out the first reflecting surface reflection of this end reflexes to the direction at described infrared receiver component place.
4. infrared touch panel according to claim 3, is characterized in that, described the first reflecting surface and/or the second reflecting surface are concave surface.
5. infrared touch panel according to claim 4, is characterized in that, described light guide member adopts the injection mo(u)lding of infrared filtering material.
6. infrared touch panel according to claim 5, is characterized in that, described light guide member also comprises first refractive face;
Wherein, the first refractive face of light guide member that is positioned at infrared emission component end is the direction to described infrared receiver component place by the anaclasis of this end second reflecting surface reflection;
The first refractive face that is positioned at the light guide member of infrared receiver component end will reflect next anaclasis to the second reflecting surface of this end from infrared emission component direction.
7. infrared touch panel according to claim 6, is characterized in that, described light guide member also comprises the second plane of refraction;
Wherein, the light that infrared emission component sends first reflecting surface of this end of directive again after being positioned at the second plane of refraction refraction of light guide member of infrared emission component end;
The light of the first reflecting surface reflection of light guide member that is positioned at infrared receiver component end infrared receiver component described in directive after this end second plane of refraction refraction.
8. infrared touch panel according to claim 7, is characterized in that, described light guide member has the first groove, and infrared emission component and infrared receiver component are all arranged in this first groove.
9. infrared touch panel according to claim 8, is characterized in that, the sidewall of described the first groove forms the second plane of refraction.
10. infrared touch panel according to claim 9, is characterized in that, the outside of described the first groove is also provided with the second groove, and described circuit board is fixed on light guide member by screw, and this screw embeds in this second groove.
11. infrared touch panels according to claim 10, is characterized in that, the bottom of the bottom of described infrared receiver component and infrared emission component and the first groove is fixed by glue; Described light guide member is fixed on touch pad by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546184.2U CN203480476U (en) | 2013-09-04 | 2013-09-04 | Infrared touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320546184.2U CN203480476U (en) | 2013-09-04 | 2013-09-04 | Infrared touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203480476U true CN203480476U (en) | 2014-03-12 |
Family
ID=50228771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320546184.2U Expired - Lifetime CN203480476U (en) | 2013-09-04 | 2013-09-04 | Infrared touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203480476U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196282A1 (en) * | 2017-04-27 | 2018-11-01 | 广州视源电子科技股份有限公司 | Touch screen and display |
| CN112667113A (en) * | 2021-02-23 | 2021-04-16 | 中航华东光电有限公司 | High-precision infrared touch screen |
| CN114578472A (en) * | 2022-02-28 | 2022-06-03 | 维沃移动通信有限公司 | Infrared lamp light guide module, infrared lamp light guide module assembly method and electronic equipment |
-
2013
- 2013-09-04 CN CN201320546184.2U patent/CN203480476U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196282A1 (en) * | 2017-04-27 | 2018-11-01 | 广州视源电子科技股份有限公司 | Touch screen and display |
| CN112667113A (en) * | 2021-02-23 | 2021-04-16 | 中航华东光电有限公司 | High-precision infrared touch screen |
| CN112667113B (en) * | 2021-02-23 | 2023-02-10 | 中航华东光电有限公司 | High-precision infrared touch screen |
| CN114578472A (en) * | 2022-02-28 | 2022-06-03 | 维沃移动通信有限公司 | Infrared lamp light guide module, infrared lamp light guide module assembly method and electronic equipment |
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