CN103076926B - A kind of contact panel, touch control display device and touch control method - Google Patents
A kind of contact panel, touch control display device and touch control method Download PDFInfo
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- CN103076926B CN103076926B CN201210401680.9A CN201210401680A CN103076926B CN 103076926 B CN103076926 B CN 103076926B CN 201210401680 A CN201210401680 A CN 201210401680A CN 103076926 B CN103076926 B CN 103076926B
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Abstract
The embodiment of the present invention provides a kind of contact panel, touch control display device and touch control method, relate to display device and manufacture field, the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, reduce infrared transceiver device quantity, reduce production cost and the energy consumption of display device.Comprise: the infrared transmitting device and the first guide-lighting module that are positioned at panel one end, the infrared light that the road infrared light that described first guide-lighting module is used for being sent by described infrared transmitting device is divided into more than two-way parallel; And/or be positioned at an infrared receiver and the second guide-lighting module of the described panel other end, described second guide-lighting module is for more than the two-way that converges described infrared transmitting device and send parallel infrared light.The embodiment of the present invention is for the manufacture of contact panel.
Description
Technical field
The present invention relates to display device and manufacture field, particularly relate to a kind of contact panel, touch control display device and touch control method.
Background technology
Along with the development of display technique, touch control display device obtains the concern of more and more people gradually owing to having the features such as simple operation.In existing various touch control display device, infrared type contact panel, the advantage such as light transmission strong high with its stability and being widely used again.
Current infrared type contact panel adopts infrared grid to realize the location of user's position of touch usually, this just needs in the left and right of screen and assembles many cover infrared transceiver devices up and down to form infrared matrix, when user carries out touch control operation, the finger of user will stop the reception of specific location infrared light, and namely the coordinate not receiving the receiving trap of infrared light by record can realize the accurate location to user's position of touch.As shown in Figure 1, be respectively arranged with the upper and lower of infrared type contact panel 10 and left and right and organize far infrared transceiver more, comprise infrared light-emitting diode 11 and corresponding infrared receiver 12.Can see, the resolution of the more intensive contact panel of infrared ray matrix is also higher, namely the physical resolution of touch-control is determined by the arrangement density of infrared transmitting device, and the arrangement of infrared transmitting device is more intensive, identifies that the resolution of user's touch-control is also higher.
In prior art, owing to being difficult to process the infrared light-emitting diode obtaining smaller szie by the restriction of manufacturing process, therefore the physical resolution of infrared touch-control is limited, is easier to occur staircase when user draws oblique line, is difficult to the demand meeting the application of high precision touch-control.On the other hand, along with the increase of large touch screen application demand, in order to ensure the physical resolution of touch-control, the quantity demand of infrared grid matrix to infrared transceiver device also gets more and more, arrange infrared transceiver device in a large number will inevitably increase the manufacturing cost of display device, improve the energy consumption of product, prior art there is no method and addresses these problems.
Summary of the invention
Embodiments of the invention provide a kind of contact panel, touch control display device and touch control method, the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, reduce infrared transceiver device quantity, reduce production cost and the energy consumption of display device.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The one side of the embodiment of the present invention, provides a kind of contact panel, comprising:
Be positioned at an infrared transmitting device and the first guide-lighting module of panel one end, the infrared light that the road infrared light that described first guide-lighting module is used for being sent by described infrared transmitting device is divided into more than two-way parallel; And/or,
Be positioned at an infrared receiver and the second guide-lighting module of the described panel other end, described second guide-lighting module is for more than the two-way that converges described infrared transmitting device and send parallel infrared light.
The another aspect of the embodiment of the present invention, provides a kind of touch control display device, comprises contact panel as above.
The another aspect of the embodiment of the present invention, provides a kind of touch control method, comprising:
The infrared transmitting device being positioned at panel one end sends a road infrared light, the infrared light that a described road infrared light is divided into more than two-way parallel through the first guide-lighting module; And/or,
Be positioned at the infrared light of the second guide-lighting module reception through described panel surface of the described panel other end, described infrared light is converged input infrared receiver by described second guide-lighting module.
The contact panel that the embodiment of the present invention provides, touch control display device and touch control method, this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of contact panel in prior art;
The structural representation of a kind of contact panel that Fig. 2 provides for the embodiment of the present invention;
The structural representation of a kind of light guiding prism that Fig. 3 a provides for the embodiment of the present invention;
The light path schematic diagram of a kind of light guiding prism that Fig. 3 b provides for the embodiment of the present invention;
The structural representation of another light guiding prism that Fig. 4 a provides for the embodiment of the present invention;
The light path schematic diagram of another light guiding prism that Fig. 4 b provides for the embodiment of the present invention;
The structural representation of a kind of TFT liquid crystal light valve that Fig. 5 provides for the embodiment of the present invention;
The use schematic diagram of a kind of contact panel that Fig. 6 provides for the embodiment of the present invention;
The structural representation of another contact panel that Fig. 7 a provides for the embodiment of the present invention;
The structural representation of the another contact panel that Fig. 7 b provides for the embodiment of the present invention;
The schematic flow sheet of a kind of touch control method that Fig. 8 provides for the embodiment of the present invention;
The schematic flow sheet of the another kind of touch control method that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The contact panel 20 that the embodiment of the present invention provides, as shown in Figure 2, comprising:
Be positioned at the infrared light that the infrared transmitting device 221 of panel 21 one end and the guide-lighting module 231 of the first guide-lighting module 231, first are divided into more than two-way parallel for the road infrared light sent by infrared transmitting device 221.And/or,
Be positioned at the infrared receiver 222 of panel 21 other end and the guide-lighting module 232 of the second guide-lighting module 232, second for more than the two-way that converges infrared transmitting device 221 and send parallel infrared light.
It should be noted that, in the contact panel 20 shown in Fig. 2, be form for an infrared transmitting device 221 and infrared receiver 222 explanation that one group of far infrared transceiver carries out.In the actual application of contact panel, one group of far infrared transceiver can also by an infrared transmitting device 221 and two or more infrared receiver 222, or two or more infrared transmitting device 221 and an infrared receiver 222 form.
The contact panel that the embodiment of the present invention provides, this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
Further, as shown in Figure 2, the first guide-lighting module 231 specifically can comprise:
First light guiding prism 2311 and the first light valve 2312, first light valve 2312 between the first light guiding prism 2311 and panel 21 are for controlling the outgoing of the infrared light after the first light guiding prism 231 light splitting.
Wherein, the road infrared light that infrared transmitting device 221 can be sent by point light action by the first light guiding prism 2311 is separated into one group of scattered light on irradiation first light valve 2312 surface, this scattered light passes through the first light valve 2312 by formation one road infrared light, the light path of this infrared light can perpendicular to the edge of panel, between two the first light valves 2312, lighttight photoresist can be set, namely the infrared light of more than two-way exiting parallel at equal intervals can be obtained by multiple equally spaced first light valve 2312, visible first light valve more than 2312, the getable scanned infrared light of institute is also more.So, the noctovisor scan matrix by adopting the two groups of far infrared transceiver being arranged at panel transverse and longitudinal direction respectively namely can obtain higher density.
Certainly, as shown in Figure 2, similar with the first guide-lighting module 231, the second guide-lighting module 232 specifically can comprise:
Second light guiding prism 2321 and the second light valve 2322, second light valve 2322 between the second light guiding prism 2321 and panel 21 are for receiving incident infrared light.
Wherein, the infrared light of Multichannel Parallel incidence can converge by the second light guiding prism 2321, second light valve 2322 structure is identical with the first light valve 2312, and the position of the second light valve 2322 is corresponding with the position of the first light valve 2312, so, when user carries out touch control operation, first light valve 2312 all can detect infrared light, and stop will be subject to by the infrared light of user's contact position and cannot arrive the second light valve 2322, therefore the position position of the second light valve 2322 infrared light being detected just can being known compared with the position of the first light valve 2312 user contact is only needed.
It should be noted that, the first light guiding prism 2311 provided in the embodiment of the present invention and the second light guiding prism 2321 can be that existing any one can realize the light guiding prism of optically focused light splitting function.
Such as, in contact panel 20 as shown in Figure 2, namely be with the first light guiding prism 2311 and the second light guiding prism 2321 explanation that triangle light guiding prism carries out, wherein, infrared transmitting device 221 or infrared receiver 222 can be positioned at the vertex position place away from panel 21 of this triangle light guiding prism.Concrete, as shown in Figure 3 a, the first light guiding prism 2311 is isosceles triangular structure, and the 3rd limit of this isosceles triangle light guiding prism contacts with the first light valve 2312, and infrared transmitting device 221 is positioned at the vertex position place of this triangle light guiding prism.When infrared transmitting device 221 sends a road infrared light, its light path can be as shown in Figure 3 b, can see, one road infrared light forms one group of scattered light through the light splitting of triangle light guiding prism, this scattered light forms a road infrared light by the first light valve 2312, by the infrared light of the final outgoing Multichannel Parallel of multiple first light valves 2312 of arranging at equal intervals.
Again such as, first light guiding prism 2311 and the second light guiding prism 2321 can be all trapezoidal light guiding prism, wherein, two bases of this trapezoidal light guiding prism can be vertical with face plate edge, and infrared transmitting device or infrared receiver can be positioned at the side, long base of this trapezoidal light guiding prism.Concrete, as shown in fig. 4 a, the first light guiding prism 2311 is trapezoidal light guiding prism structure, and two base vertical of this trapezoidal light guiding prism are in face plate edge, and infrared transmitting device 221 send light by the long limit of trapezoidal light guiding prism.When infrared transmitting device 221 sends a road infrared light, its light path can be as shown in Figure 4 b, can see, one road infrared light forms one group of scattered light through the light splitting of trapezoidal light guiding prism, this scattered light forms a road infrared light by the first light valve 2312, by the infrared light of the final outgoing Multichannel Parallel of multiple first light valves 2312 of arranging at equal intervals.
In embodiments of the present invention, have can the open area of switch for the first light valve 2312 and the second light valve 2322.So, user can select all or part of open area of opening in light valve according to actual needs, thus achieves the free adjustment of touch-control physical resolution.Such as, when user needs to carry out high-resolution touch control operation, whole open areas can be opened to improve the physical resolution of touch-control, when user does not need higher resolution, the open area of even number line can be closed to reduce the physical resolution of touch-control.
Concrete, the first light valve 2312 and the second light valve 2322 can be all TFT (Thin FilmTransistor, Thin Film Transistor (TFT)) liquid crystal light valve.Because TFT liquid crystal light valve has different guiding properties respectively in energising or off-position, therefore light whether outgoing can be controlled by this TFT liquid crystal light valve, so, the quantity opened or closed of control TFT liquid crystal light valve namely can the ultrared density of gated sweep, thus achieve the free adjustment of touch-control physical resolution.
TFT liquid crystal light valve utilizes the electrooptical effect of liquid crystal to realize the control to light, its structure can be as shown in Figure 5, wherein, TFT liquid crystal light valve 50 comprises first transparency carrier 51 and second transparency carrier 52 shaping to box, the consistent layer of liquid crystal molecule of orientation 53 is filled with between two transparency carriers, the surface of the first transparency carrier 51 is provided with the first polaroid 511, the first electrode 512 is provided with between first transparency carrier 51 and layer of liquid crystal molecule 53, relative with the first transparency carrier 51, the surface of the second transparency carrier 52 is provided with the second polaroid 521, the second electrode 522 is provided with between second transparency carrier 52 and layer of liquid crystal molecule 53.
Be described from the first transparency carrier 51 side incidence with infrared light, infrared light " filtration " after the first polaroid 511 is linearly polarized photon, because the distortion pitch of liquid crystal molecule in liquid crystal cell is much bigger more than optical wavelength, so after the linearly polarized photon incidence consistent or orthogonal along Liquid Crystal Molecules Alignment direction, its polarization direction is being understood distortion 90 ° and is being penetrated by opposite side after whole layer of liquid crystal molecule 53, and second polaroid 521 orthogonal with the first polaroid 511 can play the effect of printing opacity; If apply the voltage of certain value between the first electrode 512 and the second electrode 522, liquid crystal major axis starts to tilt along direction of an electric field, after voltage reaches about 2 times of threshold voltages, except the liquid crystal molecule of electrode surface, liquid crystal molecule in all liquid crystal cells between two electrodes all becomes the rearrangement along direction of an electric field, layer of liquid crystal molecule 53 between the first orthogonal polaroid 511 and the second polaroid 521 loses the effect of 90 ° of optically-actives, makes device can not printing opacity.TFT liquid crystal light valve utilizes the way to liquid crystal cell energising or power-off to realize the cut out of light and conducting just.
The detailed process adopting a kind of like this contact panel to carry out touch control operation can be described below:
As shown in Figure 6, longitudinal two ends of contact panel 60 are respectively arranged with infrared transmitting device 61 and infrared receiver 62, the infrared light that infrared transmitting device 61 sends divides the infrared light in order to Multichannel Parallel to arrive the TFT liquid crystal light valve x ' of infrared receiver 62 side through light guiding prism and TFT liquid crystal light valve x, finally converges at infrared receiver 62 by the light guiding prism of infrared receiver 62 side.Equally, the transverse ends of contact panel 60 is respectively arranged with infrared transmitting device 63 and infrared receiver 64, infrared transmitting device 63 side has TFT liquid crystal light valve y, infrared receiver 64 side has TFT liquid crystal light valve y ', by infrared transmitting device 63 outgoing infrared light through light splitting and collect arrive infrared receiver 64.As shown in Figure 6, the open area of light valve x is made to be x1, x2 ... x8 respectively, light valve x ' the open area corresponding with light valve x is respectively x1 ', x2 ' ... x8 ', and in like manner horizontal light valve y and the open area of light valve y ' are respectively y1, y2 ... y6 and y1 ', y2 ' ... y6 '.
When contact panel is started shooting, initialization scan matrix, closeall TFT liquid crystal light valve, makes infrared transmitting device 61 and 63 and infrared receiver 62 and 64 be in normal operating conditions.
When starting the measurement carrying out position of touch, need to line by line scan to the optical channel in transverse and longitudinal direction respectively.Such as, contact panel by within one default less period according to from y1 to y6, order again from x1 to x8 carries out scanning to judge on this light path, whether occurred the touch-control of user successively, when contact panel scans y1 passage, opens light valve y1 and light valve y1 ', close other light valves simultaneously, other optical channels can be avoided like this to have an impact to Current Scan, by that analogy, when all optical channels have scanned, one frame scan terminates, and contact panel will enter the scanning of next frame.
The finger contact of user as shown in Figure 6, can be clearly seen that, the fingers blocks of user has lived the infrared ray light path between x6 and x6 ' and y4 and y4 '.
After a frame scan completes, the original signal that the signal received by infrared receiver and infrared transmitting device send is compared.Because infrared receiver does not receive x6 ' and the infrared signal of y4 ', therefore can determine that the finger position of user is in coordinate (x6, y4).
Adopt so a kind of contact panel that the embodiment of the present invention provides, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus production cost and the energy consumption of display device is effectively reduced.
In the embodiment above, preferably form for an infrared transmitting device and infrared receiver the explanation that one group of far infrared transceiver carries out.In the actual application of contact panel, one group of far infrared transceiver can also by an infrared transmitting device and two or more infrared receiver, or two or more infrared transmitting device and an infrared receiver form, when arranging two or more infrared transmitting device or two or more infrared receiver, the guide-lighting module of two or more first or the guide-lighting module of two or more second can be set, if the quantity of infrared transmitting device or infrared receiver arranges guide-lighting module with the quantity of liquid crystal light valve to not needing time corresponding.
Comprise an infrared transmitting device and two or more infrared receiver for one group of far infrared transceiver, the embodiment of the present invention also provides a kind of contact panel 70, as shown in Figure 7a, comprising:
When one end of panel 71 is provided with an infrared transmitting device 721 and the first guide-lighting module 731, other one end of panel 71 is provided with the infrared light that the guide-lighting module 731 of two or more infrared receiver 722, first is divided into more than two-way parallel for the road infrared light sent by infrared transmitting device 721.
Wherein, the plural infrared receiver 722 being positioned at the other one end of panel 71 can adopt existing infrared receiver, the position of each infrared receiver should be corresponding with the road infrared light that infrared transmitting device 721 sends, a TFT liquid crystal light valve namely in a corresponding first guide-lighting module 731 of infrared receiver.
Or the embodiment of the present invention also provides a kind of contact panel 70, in contact panel 70, one group of far infrared transceiver can comprise two or more infrared transmitting device and an infrared receiver, as shown in Figure 7b, comprising:
When one end of panel 71 is provided with an infrared receiver 722 and the second guide-lighting module 732, other one end of panel 71 is provided with the guide-lighting module 732 of two or more infrared transmitting device 721, second for more than the two-way that converges two or more infrared transmitting device 721 and send parallel infrared light.
Wherein, the plural infrared transmitting device 721 being positioned at panel 71 one end can adopt existing infrared transmitter, the position of each infrared transmitter should to receive the path of a road infrared light corresponding with infrared receiver 722, a TFT liquid crystal light valve namely in a corresponding second guide-lighting module 732 of infrared receiver.
The contact panel that the embodiment of the present invention provides, this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
Wherein, the structure of the first guide-lighting module 731 and the second guide-lighting module 732 all with reference to previous embodiment, can not repeat herein.
Adopt a kind of like this contact panel of structure can reduce the magnitude setting of far infrared transceiver equally, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
The touch control display device that the embodiment of the present invention provides, comprises contact panel as above.
Wherein, the display panel that this touch control display device has can be specifically comprise LCD (Liquid Crystal Display, liquid crystal display) or OLED (OrganicLight-Emitting Diode, organic light emitting diode) display etc. at any one interior existing display.
Because contact panel has done detailed description, in the aforementioned embodiment so place repeats no more.
The touch control display device that the embodiment of the present invention provides, comprises contact panel, and this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
The touch control method that the embodiment of the present invention provides, comprising:
The infrared transmitting device being positioned at panel one end sends a road infrared light, the infrared light that this road infrared light is divided into more than two-way parallel through the first guide-lighting module.And/or,
Be positioned at the infrared light of the second guide-lighting module reception through described panel surface of the described panel other end, described infrared light is converged input infrared receiver by described second guide-lighting module.
In embodiments of the present invention, one group of far infrared transceiver can comprise an infrared transmitting device and multiple infrared receiver, or multiple infrared transmitting device and an infrared receiver can be comprised, or one group of far infrared transceiver only can comprise an infrared transmitting device and an infrared receiver.
Wherein, the structure of the first guide-lighting module and the second guide-lighting module has done detailed description in the aforementioned embodiment, repeats no more herein.
The touch control method that the embodiment of the present invention provides, is applied to a contact panel, and this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
Further, the touch control method that the embodiment of the present invention provides can also comprise:
Compared in the position of launching this infrared light and the position that receives this infrared light and determine the position of touch-control.
Above-mentioned touch control method mainly can be applied to the contact panel with an infrared transmitting device or the contact panel with an infrared receiver.
Certainly, the touch control method that the embodiment of the present invention provides can also be applied to the contact panel with multiple infrared transmitting device or multiple infrared receiver.
Concrete, when the infrared transmitting device being positioned at panel one end sends a road infrared light, the infrared light that this road infrared light is divided into more than two-way parallel through the first guide-lighting module, is positioned at the infrared light of two or more infrared receiver reception through panel surface of the panel other end.Concrete touch control method as shown in Figure 8, comprising:
S801, the infrared transmitting device being positioned at panel one end send a road infrared light, the infrared light that this road infrared light is divided into more than two-way parallel through the first guide-lighting module.
S802, the two or more infrared receiver being positioned at this panel other end receive through the infrared light of this panel surface.
S803, to compare according to the position of launching this infrared light and the position that receives this infrared light and determine the position of touch-control.
Or, when the be positioned at panel one end second guide-lighting module receives the infrared light through panel surface, when this infrared light is converged an input infrared receiver by the second guide-lighting module, the two or more infrared transmitting device being positioned at the panel other end sends the parallel infrared light of more than two-way.Concrete touch control method as shown in Figure 9, comprising:
S901, the two or more infrared transmitting device being positioned at panel one end send the parallel infrared light of more than two-way.
S902, the second guide-lighting module being positioned at this panel other end receive the infrared light through this panel surface, and infrared light is converged input infrared receiver by this second guide-lighting module.
S903, determine the position of touch-control according to the position of launching infrared light and the position that receives infrared light.
The touch control method that the embodiment of the present invention provides, is applied to a contact panel, and this contact panel comprises the infrared transmitting device being positioned at panel one end, the infrared receiver being positioned at this panel other end and guide-lighting module.Wherein, the infrared light that the road infrared light that an infrared transmitting device sends can be divided into more than two-way parallel by guide-lighting module, or more than two-way parallel infrared light can be converged input infrared receiver, so, the infrared ray matrix of dense arrangement just can be obtained without the need to arranging a large amount of infrared transmitting devices and infrared receiver, thus the physical resolution of contact panel can be made not by the quantitative limitation of the infrared transceiver device number of permutations, improve the physical resolution of contact panel, in addition owing to decreasing the quantity of infrared transceiver device, thus effectively reduce production cost and the energy consumption of display device.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, 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 (10)
1. a contact panel, is characterized in that, comprising:
Be positioned at an infrared transmitting device and the first guide-lighting module of panel one end, the infrared light that the road infrared light that described first guide-lighting module is used for being sent by described infrared transmitting device is divided into more than two-way parallel; And/or,
Be positioned at an infrared receiver and the second guide-lighting module of the described panel other end, described second guide-lighting module is for more than the two-way that converges described infrared transmitting device and send parallel infrared light;
Described first guide-lighting module comprises:
First light guiding prism and the first light valve between described first light guiding prism and described panel, described first light valve is for controlling the outgoing of the infrared light after described first light guiding prism light splitting;
Described second guide-lighting module comprises:
Second light guiding prism and the second light valve between described second light guiding prism and described panel, described second light valve is for receiving incident infrared light;
Described first light valve and described second light valve have can the open area of switch.
2. contact panel according to claim 1, it is characterized in that, when one end of described panel is provided with an infrared transmitting device and the first guide-lighting module, other one end of described panel is provided with two or more infrared receiver, the infrared light that the road infrared light that described first guide-lighting module is used for being sent by described infrared transmitting device is divided into more than two-way parallel.
3. contact panel according to claim 1, it is characterized in that, when one end of described panel is provided with an infrared receiver and the second guide-lighting module, other one end of described panel is provided with two or more infrared transmitting device, and described second guide-lighting module is for more than the two-way that converges infrared transmitting device described in two or more and send parallel infrared light.
4. contact panel according to claim 1, is characterized in that, described first light guiding prism and described second light guiding prism comprise:
Triangle light guiding prism, described infrared transmitting device or described infrared receiver are positioned at the vertex position place away from described panel of described triangle light guiding prism; Or,
Trapezoidal light guiding prism, two bases of described trapezoidal light guiding prism are vertical with described face plate edge, and described infrared transmitting device or described infrared receiver are positioned at the side, long base of described trapezoidal light guiding prism.
5. contact panel according to claim 1, is characterized in that, described first light valve and described second light valve are Thin Film Transistor (TFT) TFT liquid crystal light valve.
6. a touch control display device, is characterized in that, comprise as arbitrary in claim 1 to 5 as described in contact panel.
7., for a touch control method for the contact panel described in any one of the claims 1-5, it is characterized in that, comprising:
The infrared transmitting device being positioned at panel one end sends a road infrared light, the infrared light that a described road infrared light is divided into more than two-way parallel through the first guide-lighting module; And/or,
Be positioned at the infrared light of the second guide-lighting module reception through described panel surface of the described panel other end, described infrared light is converged input infrared receiver by described second guide-lighting module.
8. method according to claim 7, is characterized in that, described method also comprises:
Compared in the position of launching described infrared light and the position that receives described infrared light and determine the position of touch-control.
9. the method according to claim 7 or 8, it is characterized in that, when the infrared transmitting device being positioned at panel one end sends a road infrared light, the infrared light that a described road infrared light is divided into more than two-way parallel through the first guide-lighting module, is positioned at the infrared light of two or more infrared receiver reception through described panel surface of the panel other end.
10. the method according to claim 7 or 8, it is characterized in that, when the be positioned at panel one end second guide-lighting module receives the infrared light through described panel surface, when described infrared light is converged an input infrared receiver by described second guide-lighting module, the two or more infrared transmitting device being positioned at the panel other end sends the parallel infrared light of more than two-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210401680.9A CN103076926B (en) | 2012-10-19 | 2012-10-19 | A kind of contact panel, touch control display device and touch control method |
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| CN201210401680.9A CN103076926B (en) | 2012-10-19 | 2012-10-19 | A kind of contact panel, touch control display device and touch control method |
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| CN103631454B (en) * | 2013-12-11 | 2017-01-04 | 广州视睿电子科技有限公司 | simulation method and system of infrared touch screen |
| CN103727899B (en) * | 2013-12-31 | 2015-07-01 | 京东方科技集团股份有限公司 | Method for detecting rotation angle of remote controller in television system and television system |
| KR20160124372A (en) * | 2015-04-17 | 2016-10-27 | 삼성디스플레이 주식회사 | Touch panel |
| US10884553B2 (en) | 2015-11-03 | 2021-01-05 | Hewlett-Packard Development Company, L.P. | Light guide and touch screen assembly |
| CN106293267A (en) * | 2016-07-28 | 2017-01-04 | 广州视睿电子科技有限公司 | Infrared touch device, infrared signal detection method and device |
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