CN103019481A - Touch screen - Google Patents
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- CN103019481A CN103019481A CN2012105927467A CN201210592746A CN103019481A CN 103019481 A CN103019481 A CN 103019481A CN 2012105927467 A CN2012105927467 A CN 2012105927467A CN 201210592746 A CN201210592746 A CN 201210592746A CN 103019481 A CN103019481 A CN 103019481A
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- touch panel
- touch
- circuit board
- optical transceiver
- light
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Abstract
The invention provides a touch screen. The touch screen comprises a touch panel, a light transceiver element and a circuit board, wherein beside the light transceiver element, other electronic components are also arranged on the circuit board; and the light transceiver element and the touch panel are positioned on the same side of the circuit board. The touch screen is characterized in that at least part of the circuit board is overlapped with the touch panel, the touch screen further comprises a light path conversion element, the light transceiver element faces to the light path conversion element, and the light path conversion element is used for changing the light transmitting direction to enable light emitted by the light transceiver element and radiated to the light path conversion element to be transmitted along the surface of the touch panel, and also enable light transmitted along the surface of the touch panel and radiated to the light path conversion element to be transmitted toward the light transceiver element. According to the invention, the frame of the touch screen can be ultrathin and ultra-narrow under the condition of satisfying a higher touch experience requirement.
Description
Technical field
The present invention relates to a kind of touch-screen.
Background technology
Infrared touch panel is widely applied in various environment because of advantages such as working stability, long service life.
At present, infrared touch panel generally is comprised of with the frame that contains circuit board the touch panel of the front that is installed in display, described touch panel is such as being made by glass, and for covering display, frame is trapped among the outside of described touch panel, the four edges of the circuit board in frame arrange infrared transmitting tube and infrared receiving tube, infrared transmitting tube is arranged on two relative limits of frame with infrared receiving tube generally speaking, thereby forms the infrared matrix that intersects at the touch panel that frame surrounds.The user is when touching the touch panel of infrared touch panel, and finger will block the anyhow infrared ray through this position, thereby judges the touch point in the position of screen.
Fig. 1 shows the structure of existing infrared touch panel, wherein contain the frame of circuit board 103 around the arranged outside of touch panel 105, optical transceiver cell 101 is arranged on the circuit board 103, printing opacity frame 110 be arranged on optical transceiver cell towards direction, be used for filtering so that infrared light passes through, and other light of filtering.
But, along with the development of touch-screen and the raising of user's request, the user pursue better touch experience in, also require the touch-screen can be thinner narrower.Present a lot of touch-screens not merely have been that the basic operations such as click are realized in the position of identification touch point, thereby the track following that can also carry out the touch point carries out gesture identification.And often extremely important in the gesture of the frame near zone of touch-screen, such as the page turn over operation etc. that can carry out near the finger that outside frame, slides the frame to the left or to the right, this just requires to have certain " buffer zone " near the smooth and frame of the frame of touch-screen, better carries out near the touch operation the frame and satisfies the user to touching the demand of experiencing.
For the infrared touch panel field, can either realize this real touch experience, can satisfy again the ultra-thin super narrow requirement of touch-screen, become a kind of new development trend.
Summary of the invention
For the above-mentioned problems in the prior art, the invention provides a kind of touch-screen, can in the situation that satisfies higher touch demand for experience, realize the ultra-thin super narrow of touch-screen frame.
A kind of touch-screen provided by the invention, this touch-screen comprises touch panel, optical transceiver cell and circuit board, be provided with other electronic devices and components except optical transceiver cell on the described circuit board, described optical transceiver cell and described touch panel are positioned at the same side of described circuit board, wherein, described circuit board at least a portion and described touch panel are overlapping, this infrared touch panel also comprises the light path converting element, described light path converting element is arranged on the described circuit board, described optical transceiver cell is towards described light path converting element, described light path converting element is used for changing the direction of propagation of light, so that optical transceiver cell sends and the light of the described light path converting element of directive changes over along the surface of described touch panel and propagates, and so that propagate on the surface of touch panel and direction that the light of the described light path converting element of directive changes over the directive optical transceiver cell is propagated.
Utilize touch-screen provided by the invention, at least a portion of circuit board is placed the below of touch panel, only with the arranged outside of optical transceiver cell along touch panel, like this so that the border width of touch-screen is minimum, change again the direction of propagation of light by the light path converting element, and do not need so that optical transceiver cell is higher than the surface level at touch panel place, thereby can be so that the frame height of touch-screen be minimum, and, pass through embodiments of the present invention, can form near frame certain " buffer zone ", better carry out near the touch operation of frame, the touch that has greatly strengthened the user is experienced.
Description of drawings
Fig. 1 shows the sectional view according to the infrared touch panel of prior art;
Fig. 2 shows the structural representation according to touch-screen of the present invention;
Fig. 3 shows the side view according to the frame of touch-screen of the present invention;
Fig. 4 shows the index path according to touch-screen of the present invention;
Fig. 5 shows the partial enlarged drawing according to the frame shown in Fig. 3 of the first embodiment of the present invention;
Fig. 6 shows the partial enlarged drawing according to the frame shown in Fig. 3 of the second embodiment of the present invention;
Fig. 7 shows the partial enlarged drawing according to the frame shown in Fig. 3 of another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiments of the invention is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Fig. 2 shows the structural representation according to touch-screen of the present invention.With reference to figure 2, in order to carry out better the gesture identification of touch-screen frame near zone, such as carrying out to the left or to the right page turn over operation etc. near the finger that outside frame, slides the frame, has certain buffer zone 106 according to the position near frame on the touch panel 105 of touch-screen of the present invention, this buffer zone 106 can touch detection, but do not show the touch information in this buffer zone 106 on the display, better carry out near the touch operation of frame.Like this, by buffer zone 106 is set, can improves user's touch and experience.
Fig. 3 shows the side view according to the frame of touch-screen of the present invention; Fig. 4 shows the index path according to touch-screen of the present invention; Fig. 5 shows the partial enlarged drawing according to the frame shown in Fig. 3 of the first embodiment of the present invention; Fig. 6 shows the partial enlarged drawing according to the frame shown in Fig. 3 of the second embodiment of the present invention; Fig. 7 shows the partial enlarged drawing according to the frame shown in Fig. 3 of another embodiment of the present invention.
Touch-screen for Fig. 2, in order to realize the touch-screen of super narrow frame, the invention provides a kind of touch-screen, with reference to figure 3 to Fig. 7, this touch-screen comprises touch panel 105, optical transceiver cell 101 and circuit board 103, be provided with other electronic devices and components 104 except optical transceiver cell 101 on the described circuit board 103, described optical transceiver cell 101 and described touch panel 105 are positioned at the same side of described circuit board 103, it is characterized in that, described circuit board 103 at least a portion and described touch panel 105 are overlapping, this touch-screen also comprises light path converting element 102, described optical transceiver cell 101 is towards described light path converting element 102, described light path converting element 102 is used for changing the direction of propagation of light, so that optical transceiver cell 101 sends and the light of the described light path converting element 102 of directive changes over along the surface of described touch panel 105 and propagates, and so that propagate on the surface of touch panel 105 and direction that the light of the described light path converting element 102 of directive changes over directive optical transceiver cell 101 is propagated.
The infrared receiving/transmission element can be according to optical transceiver cell 101 of the present invention, also other monochromatic transmit-receive cells can be.This optical transceiver cell 101 can adopt surface mount elements, also can adopt the direct insertion element with pin, such as SMD light-emitting tube and direct insertion light-emitting tube etc.Preferably, described optical transceiver cell 101 comprises infrared emission component and infrared receiver component.
Touch-screen of the present invention uses the zone of buffer zone 106, make circuit board 103 at least a portion and described touch panel 105 overlapping, circuit board 103 is arranged at the below of buffer zone 106, only optical transceiver cell 101 is arranged at touch panel 105 outsides, so that the border width of touch-screen is minimum.Wherein, described touch panel 105 can be fixed on the display, and this touch panel 105 can be glass, also can be for being used for other transparent materials of touch-screen.Circuit board 103 can arrange around touch panel 105, and it can be comprised of with four circuit boards that surround rectangle frame end to end, also can be the integrative-structure of rectangle.In order to touch detection, need so that the infrared ray that photocell sends on the plane of touch panel 105, above touch panel 105, to form the scan light net, touch-screen according to the present invention is provided with light path converting element 102, the light that photocell sends can change the direction of propagation by light path converting element 102, so that light is propagated along the surface of touch panel 105, and again change the direction of propagation after spreading into light path converting element 102 along the surface of touch panel 105 and enter light receiving element, thereby can be received by light receiving element, as shown in Figure 4.Change the direction of light transmition by light path converting element 102 is set, photocell and light receiving element just do not need directly to arrange Face to face.Like this, optical transceiver cell 101 can be arranged on the plane at touch panel place, but can be arranged side by side with touch panel 105, perhaps be lower than the plane at touch panel place, as long as optical transceiver cell 101 is towards described light path converting element 102 emissions or receive Infrared, just can above touch panel 105, form the scan light net, successfully carry out the identification of touch objects, so, can farthest reduce the height of touch-screen.
With reference to the first embodiment shown in Figure 5, the optical filtering frame that described light path converting element 102 can arrange for the periphery around described touch panel 105, described light path converting element 102 optical filtering frames have teat 1021 and body 1022, described teat 1021 is between described optical transceiver cell 101 and described touch panel 105, described body 1022 covers on the described optical transceiver cell 101, described body 1022 is trapezoidal along the cross section of the direction of vertical described touch panel 105, described trapezoidal going to the bottom is overlapped on the described optical transceiver cell 101, described trapezoidal waist and the described out of plumb of going to the bottom in the outer part, described trapezoidal waist in the outer part has reflector layer.
Wherein, described light path converting element 102 can be integrally formed as the optical filtering frame that arranges around the periphery of described touch panel 105.Described light path converting element 102 can be not integrally formed yet, for example, can separately be arranged at least one limit of frame of touch-screen.
The teat 1021 of light path converting element 102 can be fixedly connected with circuit board 103 by modes such as welding, bonding or screws.Described teat 1021 can be integrally formed with body 1022, also can be fixedly connected with by the mode such as bonding.
Preferably, the body 1022 of described printing opacity frame also covers on the edge of described touch panel 105.Because the teat 1021 of optical filtering frame is fixed on the circuit board 103, body 1022 can be pushed down touch panel 105, thereby touch panel 105 can be fixed on the circuit board 103, so just can prevent touch panel 105 landing from the circuit board 103, perhaps can prevent conversely speaking, circuit board 103 landing from the touch panel 105.
The second embodiment with reference to figure 6, described light path converting element 102 has body 1022, described body 1022 covers on described touch panel 105 and the described optical transceiver cell 101, described body 1022 is trapezoidal along the cross section of the direction of vertical described touch panel 105, described trapezoidal going to the bottom is fixedly connected with described touch panel 105, described trapezoidal waist and the described out of plumb of going to the bottom in the outer part, described waist in the outer part has reflector layer.
Similar with the first embodiment, described light path converting element 102 is preferably the optical filtering frame that arranges around the periphery of described touch panel 105.
The main difference part of the second embodiment and the first embodiment is, in the second embodiment, light path converting element 102 does not have teat 1022, the body 1022 of light path converting element 102 can be fixedly connected with touch panel 105 by modes such as bonding or screws, and optical transceiver cell 101 can further reduce the border width of touch-screen directly by the edge setting of touch panel 105.
According to Fig. 5 and embodiment shown in Figure 6, the body 1022 of light path converting element 102 can be made by light transmissive material.Be in the situation of infrared receiving/transmission element at optical transceiver cell 101, described light path converting element 102 be made by the light transmissive material that can see through Infrared, and preferably, this light path converting element 102 can also elimination other light except Infrared.
The waist in the outer part of optical filtering frame has reflector layer, be used for changing the direction of propagation of light, the light of directive optical filtering frame reflects to send also from photocell, it is propagated on the surface of touch panel 105, and on the surface of touch panel 105, propagating and the light of the described light path converting element 102 of directive reflects, make its directive light receiving element.
Preferably, described optical transceiver cell can vertically be installed on the described circuit board 103, described trapezoidal waist in the outer part and the described miter angle of going to the bottom into.Be appreciated that, optical transceiver cell 101 also can become with circuit board the direction of non-an angle of 90 degrees that the also body 1022 of object light path conversion element 102 is installed, the waist in the outer part of body 1022 can be adjusted according to the installation direction of optical transceiver cell 101 with described angle of going to the bottom, as long as the light that photocell can be sent is along the surface reflection of touch panel and will launch towards light receiving element along the light that propagate on the surface of touch panel.
In order to prevent as much as possible weakening of light intensity, so that light receiving element can receive the stronger well lighted of signal, the reflector layer at described trapezoidal waist place in the outer part is preferably total reflection layer, thereby the infrared light that photocell can be sent is all launched.
Preferably, described trapezoidal upper base has light shield layer.Like this, can prevent the loss of light in the printing opacity frame.
Described trapezoidal waist in the inner part preferably with described go to the bottom vertical, thereby can be so that the frame of touch-screen be more attractive in appearance.
According to the third embodiment, described light path converting element 102 also can be transmitting mirror, this catoptron is fixed on described touch panel 105 or the circuit board 103, the reflective surface of described catoptron acutangulates setting towards described touch panel 105 and with described touch panel 105, and described optical transceiver cell 101 is towards the reflective surface of described catoptron.
Preferably, described optical transceiver cell 101 vertically is installed on the described circuit board 103,105 one-tenth miter angles of described reflective mirror and described touch panel.
Be appreciated that, described light path converting element 102 is not limited to above-mentioned concrete embodiment, also can adopt other forms, as long as can change the direction of propagation of light, so that photocell sends and the light of the described light path converting element 102 of directive changes over along the surface of described touch panel 105 and propagates, and so that propagate on the surface of touch panel 105 and direction that the light of the described light path converting element 102 of directive changes over the directive light receiving element is propagated.
According to touch-screen of the present invention, described other electronic devices and components 104 can be positioned at sides different from described touch panel on the described circuit board, as shown in Figure 5 and Figure 6.Described other electronic devices and components 104 also can be positioned on the described circuit board 103 side identical with described touch panel 105.Can groove be set at the touch panel edge, be used for holding described other electronic devices and components 104, like this, integral thickness is thinner, as shown in Figure 7.
With reference to figure 2, because the position near frame has certain buffer zone 106 on the touch panel 105, this buffer zone 106 can touch detection again, but does not show the touch information in this buffer zone 106 on the display.Thus, near the touch operation of frame can be carried out better less than effective touch area of described touch panel 105 in the viewing area of described touch panel 105, improves user's touch and experiences.Effective touch area of touch panel 105 can comprise viewing area and 106 two zones of the buffer zone outside the viewing area at touch panel middle part.Can cover the opaque silk-screen of one deck (for example black silk-screen) by the position of the buffer zone 106 on touch panel 105, distinguish the buffer zone 106 outside viewing area and the viewing area.
Utilize touch-screen provided by the invention, at least a portion of circuit board is placed the below of touch panel, only with the arranged outside of optical transceiver cell along touch panel, like this so that the border width of touch-screen is minimum, change again the direction of propagation of light by the light path converting element, and do not need so that optical transceiver cell is higher than the surface level at touch panel place, thereby can be so that the frame height of touch-screen be minimum, and, pass through embodiments of the present invention, can form near frame certain " buffer zone ", better carry out near the touch operation of frame, the touch that has greatly strengthened the user is experienced.Thus, can in the situation that satisfies higher touch demand for experience, realize the ultra-thin super narrow of touch-screen frame.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, the technician of any skilled is in technical scope disclosed by the invention; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (15)
1. touch-screen, this touch-screen comprises touch panel (105), optical transceiver cell (101) and circuit board (103), also be provided with other electronic devices and components (104) except optical transceiver cell on the described circuit board (103), described optical transceiver cell (101) and described touch panel (105) are positioned at the same side of described circuit board (103), it is characterized in that, described circuit board (103) at least a portion and described touch panel (105) are overlapping, this touch-screen also comprises light path converting element (102), described optical transceiver cell (101) is towards described light path converting element (102), described light path converting element (102) is used for changing the direction of propagation of light, so that optical transceiver cell (101) sends and the light of the described light path converting element of directive (102) changes over along the surface of described touch panel (105) and propagates, and so that propagate on the surface of touch panel (105) and direction that the light of the described light path converting element of directive (102) changes over directive optical transceiver cell (101) is propagated.
2. touch-screen according to claim 1 is characterized in that, being set directly on the described circuit board (103) of the described circuit board of described optical transceiver cell (101) (103).
3. touch-screen according to claim 1, it is characterized in that, described light path converting element (102) has body (1022) and teat (1021), described teat (1021) is positioned between described optical transceiver cell (101) and the described touch panel (105) and with described circuit board (103) and is fixedly connected with, described body (1022) covers on the described optical transceiver cell (101), described body (1022) is trapezoidal along the cross section of the direction of vertical described touch panel (105), described trapezoidal going to the bottom is overlapped on the described optical transceiver cell (101), described trapezoidal waist and the described out of plumb of going to the bottom in the outer part, described trapezoidal waist in the outer part has reflector layer.
4. touch-screen according to claim 3 is characterized in that, described body (1022) also covers on the edge of described touch panel (105).
5. touch-screen according to claim 1, it is characterized in that, described light path converting element (102) has body (1022), described body (1022) covers on described touch panel (105) and the described optical transceiver cell (101), described body (1022) is trapezoidal along the cross section of the direction of vertical described touch panel (105), described trapezoidal going to the bottom is fixedly connected with described touch panel (105), described trapezoidal waist and the described out of plumb of going to the bottom in the outer part, described waist in the outer part has reflector layer.
6. according to claim 3 or 5 described touch-screens, it is characterized in that described body (1022) is made by light transmissive material.
7. according to claim 3 or 5 described touch-screens, it is characterized in that described optical transceiver cell (101) vertically is installed on the described circuit board (103), described trapezoidal waist in the outer part and the described miter angle of going to the bottom into.
8. according to claim 3 or 5 described touch-screens, it is characterized in that the reflector layer on the described trapezoidal waist in the outer part is total reflection layer.
9. according to claim 3 or 5 described touch-screens, it is characterized in that described trapezoidal upper base has light shield layer.
10. according to claim 3 or 5 described touch-screens, it is characterized in that, described trapezoidal waist in the inner part with described go to the bottom vertical.
11. touch-screen according to claim 1, it is characterized in that, described light path converting element (102) is catoptron, this catoptron is fixed on described touch panel (105) or the circuit board (103), the reflective surface of described catoptron acutangulates setting towards described touch panel (105) and with described touch panel (105), and described optical transceiver cell (101) is towards the reflective surface of described catoptron.
12. touch-screen according to claim 11 is characterized in that, described optical transceiver cell (101) vertically is installed on the described circuit board (103), and described reflective mirror becomes miter angle with described touch panel (105).
13. the described touch-screen of each claim is characterized in that according to claim 1-12, described other electronic devices and components (104) are positioned at the upper side identical with described touch panel (105) of described circuit board (103).
14. touch-screen according to claim 13 is characterized in that, the edge of described touch panel (105) is provided be used to the groove that holds described other electronic devices and components (104).
15. the described touch-screen of each claim is characterized in that according to claim 1-12, described other electronic devices and components (104) are positioned at the upper side different from described touch panel (105) of described circuit board (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592746.7A CN103019481B (en) | 2012-12-29 | 2012-12-29 | Touch-screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592746.7A CN103019481B (en) | 2012-12-29 | 2012-12-29 | Touch-screen |
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| Publication Number | Publication Date |
|---|---|
| CN103019481A true CN103019481A (en) | 2013-04-03 |
| CN103019481B CN103019481B (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210592746.7A Active CN103019481B (en) | 2012-12-29 | 2012-12-29 | Touch-screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105376365A (en) * | 2015-11-24 | 2016-03-02 | 广东欧珀移动通信有限公司 | Mobile phone |
| CN105391822A (en) * | 2015-11-24 | 2016-03-09 | 广东欧珀移动通信有限公司 | Mobile phone |
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| CN2773799Y (en) * | 2004-10-21 | 2006-04-19 | 北京汇冠新技术有限公司 | Optical path system of infrared touch screen by reflector mirrow |
| US20120133598A1 (en) * | 2010-11-29 | 2012-05-31 | Fan fu-cheng | Touch display device |
| CN102722295A (en) * | 2012-06-14 | 2012-10-10 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN203311382U (en) * | 2012-12-29 | 2013-11-27 | 北京汇冠新技术股份有限公司 | Touch screen |
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2012
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2773799Y (en) * | 2004-10-21 | 2006-04-19 | 北京汇冠新技术有限公司 | Optical path system of infrared touch screen by reflector mirrow |
| US20120133598A1 (en) * | 2010-11-29 | 2012-05-31 | Fan fu-cheng | Touch display device |
| CN102722295A (en) * | 2012-06-14 | 2012-10-10 | 北京汇冠新技术股份有限公司 | Touch screen |
| CN203311382U (en) * | 2012-12-29 | 2013-11-27 | 北京汇冠新技术股份有限公司 | Touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105376365A (en) * | 2015-11-24 | 2016-03-02 | 广东欧珀移动通信有限公司 | Mobile phone |
| CN105391822A (en) * | 2015-11-24 | 2016-03-09 | 广东欧珀移动通信有限公司 | Mobile phone |
| CN105376365B (en) * | 2015-11-24 | 2018-09-04 | 广东欧珀移动通信有限公司 | A kind of mobile phone |
| CN105391822B (en) * | 2015-11-24 | 2018-11-16 | 广东欧珀移动通信有限公司 | A kind of mobile phone |
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| Publication number | Publication date |
|---|---|
| CN103019481B (en) | 2017-09-29 |
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Address after: 100193 6, 101-601, 21 building, 10 East North Road, Haidian District, Beijing. Patentee after: Three wisdom education Polytron Technologies Inc. Address before: 100015 4 floor, block B, M8 tower, 1 Jiuxianqiao East Road, Chaoyang District, Beijing. Patentee before: BEIJING IRTOUCH SYSTEMS Co.,Ltd. |
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Effective date of registration: 20220707 Address after: Room 101-602, 6th floor, building 21, East District, yard 10, northwest Wangdong Road, Haidian District, Beijing 100085 Patentee after: BEIJING IRTOUCH SYSTEMS Co.,Ltd. Address before: 100193 6, 101-601, 21 building, 10 East North Road, Haidian District, Beijing. Patentee before: Three wisdom education Polytron Technologies Inc. |