CN102109934A - Touch input device and display device using the same - Google Patents
Touch input device and display device using the same Download PDFInfo
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- CN102109934A CN102109934A CN201110071975XA CN201110071975A CN102109934A CN 102109934 A CN102109934 A CN 102109934A CN 201110071975X A CN201110071975X A CN 201110071975XA CN 201110071975 A CN201110071975 A CN 201110071975A CN 102109934 A CN102109934 A CN 102109934A
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Abstract
A display device with infrared touch function comprises a display layer, a light guide plate arranged over the display layer, a substrate and a processing unit. The light guide plate comprises a first surface far away from the display layer and a second surface adjacent to the display layer; the substrate is arranged between the light guide plate and the display layer, and an infrared sensor array is formed on the substrate; at least one infrared light source is arranged at a side face of the light guide plate, and at least one scanning reflector is also arranged at the side face of the light guide plate. Infrared rays emitted from the infrared light source enters into the light guide plate after being reflected by the scanning reflector, the light entering the inside of the light guide plate is repeatedly reflected in different directions between the first surface and the second surface of the light guide plate so as to be spread forwards. When the light guide plate is touched by a finger, the infrared sensor located under the finger receives information about interruption of an infrared signal and transmits a signal to the processing unit, and the processing unit determines the touch position according to the signal.
Description
Technical field
The present invention relates to a kind of touch-control input device, relate in particular to a kind of infrared touch control input media and use the display device of this infrared touch control input media.
Background technology
Touch-screen is as the simplest, and ripe multimedia human-computer interaction equipment has obtained using widely.Usually all be integrated with touch panel device in electronic installation, wherein the infrared touch panel technology is simple with its production technology, and the advantage that production cost is low is used very extensive.General infrared touch panel structure is to adopt in the marginal surface framework of display screen, along four edges of display screen surface according to some infrared receiving tubes of certain correspondence setting and infrared transmitting tube.Horizontal and vertical arrangement constitutes a mutually orthogonal emission receiving matrix array along the edge of display screen surface for these infrared receiving tubes and infrared transmitting tube.The user is when touch screen, and finger can block horizontal and vertical two infrared rays through this position, thereby can judge the coordinate of touch point on display screen.
Yet present infrared touch equipment comprises a large amount of infrared receiving tubes and infrared transmitting tube, can increase the cost of electronic installation.Simultaneously.Existing display device is more and more lightening, and the display device rim space reduces thereupon, has limited the application of existing infrared touch panel in electronic installation.
Summary of the invention
In view of this, the invention provides a kind of lightweight and portable in volume, have the display device of infrared touch control function.
The present invention also provides a kind of infrared touch control device.
The present invention also provides a kind of reflection display device with preceding illuminating apparatus and infrared touch control function.
A kind of display device with infrared touch control function comprises display layer, and a light guide plate is arranged at described display layer top, and described light guide plate comprises the second surface away from display layer first surface and close display layer.Comprise that also a substrate is arranged between described light guide plate and the display layer, be formed with the infrared sensor array on the described substrate, at least one infrared light sources is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror, and a processing unit.The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface.When the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, and infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to this signal.
A kind of infrared touch control device comprises a substrate, is formed with the infrared sensor array on the described substrate.Also comprise a light guide plate, described light guide plate comprises the second surface away from substrate first surface and close substrate, at least one infrared light sources is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror, and a processing unit.The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface; When the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, and infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to this signal.
A kind of reflection display device with preceding illuminating apparatus and infrared touch control function comprises display layer.Comprise that also a light guide plate is arranged at described display layer top, light guide plate comprises the second surface away from display layer first surface and close display layer, one diffuser plate is arranged between described light guide plate and the display layer, be formed with the infrared sensor array on the described diffuser plate, at least one infrared light sources is arranged on the side of light guide plate, at least one lighting source is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror, and a processing unit.The light that is sent by lighting source incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward and is reflected with each different directions interreflection between the first surface of light guide plate and second surface and injects diffuser plate and diffuse to display layer, and preceding optical illumination is provided.The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface, when the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to this signal.
After becoming the light that has different directions in three dimensions, the light scanning reflection that lighting source can be sent by scanning reflection mirror injecting light guide plate inside.Therefore light can be covered with whole light guide plate uniformly.The use of scanning reflection mirror has simultaneously reduced the usage quantity of light source.
After becoming the light that has different directions in three dimensions, the light scanning reflection that infrared light sources can be sent by scanning reflection mirror injecting light guide plate inside.The light of injecting light guide plate inside is with the propagation forward of each different directions interreflection between the first surface of light guide plate and second surface.Simultaneously on substrate below the light guide plate or diffuser plate, be integrated with the infrared sensor array and realize the infrared touch control function.
Description of drawings
Fig. 1 is the cross sectional representation of the reflection display device with infrared touch input function of first embodiment of the invention.
Fig. 2 is the infrared touch input device structure synoptic diagram of the reflection display device with infrared touch input function of first embodiment of the invention.
Fig. 3 is the light conducting plate structure synoptic diagram of the reflection display device with infrared touch input function of first embodiment of the invention.
Fig. 4 is the xsect light path synoptic diagram of the reflection display device with infrared touch input function of first embodiment of the invention.
Fig. 5 is the structural representation of diffuser plate that has the reflection display device of infrared touch input function in the first embodiment of the invention.
Fig. 6 be second embodiment of the invention the reflection display device with infrared touch input function structural representation.
Fig. 7 be have in the third embodiment of the invention infrared touch control input function reflection display device structural representation.
Fig. 8 is the reflection display device structural representation that has preceding illuminating apparatus and infrared touch function in the four embodiment of the invention.
Fig. 9 is the xsect light path synoptic diagram that has the reflection display device of preceding illuminating apparatus and infrared touch function in the four embodiment of the invention.
The main element symbol description
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1, be the structural representation of the reflection display device with infrared touch control input function 100 of first embodiment of the invention.Reflection display device 100 comprises display layer 10, light guide plate 20 and power supply (not shown).In the first embodiment, display layer 10 is an electronic-paper display screen, comprises public electrode 11, electrophoresis showed medium layer 12 and pixel electrode 13.Public electrode 11 is traditionally arranged to be whole ITO electrode, and pixel electrode 13 comprises a plurality of separate TFT electrodes.Electrophoresis showed medium layer 12 is bonded between public electrode 11 and the pixel electrode 13 by bonding agent.Electrophoresis showed medium layer 12 is that the bistable state electrophoresis shows medium, adopts microcapsules formula electrophoresis showed medium in the present embodiment.Electrophoresis showed medium layer 12 comprises that a plurality of microcapsules 121, the first electrophoresis particles 122 and second electrophoresis particle 123 are encapsulated in the microcapsules 121, and first electrophoresis particle 122 has different electricity and optical characteristics with second electrophoresis particle 123.Directed moving takes place in first electrophoresis particle 122 and second electrophoresis particle 123 in microcapsules 121 under the driving of the electric field that the voltage that is applied between public electrode 11 and the pixel electrode 13 forms, can control its moving direction and translational speed by control to direction of an electric field and electric field intensity, and then the switching of control display frame.
Please refer to Fig. 2, synoptic diagram for the infrared touch control input media 110 of application in the reflection display device 100, in the infrared touch control input media 110 that present embodiment provides, light guide plate 20 is a rectangle, and 21 places, first diagonal angle of light guide plate 20 respectively are provided with an infrared light sources 31,32.22 places, second diagonal angle of light guide plate 20 respectively are provided with a scanning reflection mirror 41,42, and scanning reflection mirror 41,42 is the MEMS (micro electro mechanical system) scanning micro-mirror (MEMS Scanning Mirror) of twin shaft in the present embodiment.The light that is sent by infrared light sources 31 is incident upon on the scanning reflection mirror 41, and the light that is sent by infrared light sources 32 is incident upon on the scanning reflection mirror 42, by the rotation of the reflecting surface of scanning reflection mirror 41,42 light is reflexed to different directions and forms scanning ray.Twin shaft MEMS (micro electro mechanical system) scanning micro-mirror can be with light scanning reflection the becoming light that has different directions in three dimensions.Light incident area 23 from the side of light guide plate 20 after scanning reflection mirror 41,42 reflection is injected light guide plate 20 inside.Because the light that infrared light sources 31,32 sends is injected light guide plate inside with different incident angles from the incident area 23 of light guide plate 20 after scanning reflection mirror 41,42 reflections, so Infrared can be covered with whole light guide plate 20 uniformly.
Please refer to Fig. 3, the side of light guide plate 20 is coated with highly reflecting films 70 except that the light that is used to make scanning reflection mirror 41,42 reflections is injected the incident area 23 of light guide plate 20, when Infrared is incident to this light guide plate 20 when inner from incident area 23, and from light guide plate 20 internal emission when being coated with the side regions of highly reflecting films 70, highly reflecting films 70 reflect those Infrared, make it be emitted to light guide plate 20 inside again.These highly reflecting films 70 can be the metallic mirror surface reflectance coatings that is deposited on light guide plate 20 sides, comprise golden Au or aluminium Al or silver-colored Ag.
Please, between light guide plate 20 and display layer 10, also be provided with transparency carrier 50 in the lump with reference to figure 4 and Fig. 5.The light of injecting light guide plate 20 inside from the incident area 23 of light guide plate 20 is covered with whole light guide plate 20 with each different directions first surface 24 and 25 interreflections of second surface in light guide plate 20.Be arranged on and also be integrated with a plurality of infrared sensors 51 (IR sensor) on the transparency carrier 50 between light guide plate 20 and the display layer 10.Infrared sensor 51 can adopt film printing technology, manufacture of semiconductor or micro electronmechanical processing procedure to finish the making of circuit layer and infrared induction layer etc. successively on transparency carrier 50 in the present embodiment, on transparency carrier 50, form infrared sensor 51 arrays, the coordinate in each infrared sensor 51 corresponding coordinate system (for example rectangular coordinate system).
Please refer again to Fig. 4, the light of injecting light guide plate 20 inside is with the forward propagation of each different directions at first surface 24 and 25 interreflections of second surface of light guide plate 20, when objects such as finger, pointer touch light guide plate 20 surperficial, the light that reflexes to the first surface 24 of light guide plate 20 has destroyed total reflection condition owing to pointing, and transmits forward thereby no longer carry out total reflection.Therefore 51 of infrared sensors that are positioned at the finger below can not receive infrared signal, thereby judge touch location.Reflection display device 100 also comprises a processing unit (not shown), when finger touch light guide plate 20, be positioned at the infrared signal interruption that the infrared sensor 51 below pointing receives, this infrared sensor 51 sends a signal to processing unit when not receiving infrared signal, processing unit is determined touch location according to the infrared sensor 51 that produces this signal.
In other embodiments, to be not limited to be reflection display device in the application of this touch controllable function.Also on the display layer of common display device, set up the substrate that film printing technology, manufacture of semiconductor or micro electronmechanical processing procedure are formed with the infrared sensor array that passes through that discloses in this first embodiment, light guide plate, infrared light sources and scanning reflection mirror are realized the infrared touch control function.
In other embodiments, also a kind of infrared touch control input media, utilize one to be formed with the substrate of infrared sensor array by film printing technology, light guide plate, infrared light sources, a scanning reflection mirror and a processing unit are realized the infrared touch control function that discloses in first embodiment.The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, when the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to the infrared sensor that produces this signal.This infrared touch control input media is applied to the touch-control input panel of notebook, perhaps touch-control input panel of other electronic equipment peripheral hardware etc.
In other embodiments, infrared light sources and scanning reflection mirror also can not be arranged at the diagonal angle of light guide plate 20.Infrared light sources and scanning reflection mirror only need be arranged at the side of light guide plate 20, and the light that is sent by infrared light sources incides light guide plate 20 inner getting final product after the scanning reflection mirror reflection.The quantity of infrared light sources can be designed to more than one or one as required, and the quantity of scanning reflection mirror is identical with the quantity of infrared light sources.
Please refer to Fig. 6, be the structural representation of the infrared touch control input media 120 used in the reflection display device (not shown) in the second embodiment of the invention.Similar in infrared touch control input media 120 in this second embodiment and first embodiment, its difference is, first drift angle, 221 places of light guide plate 220 are provided with infrared light sources 321 in this infrared touch control input media 120, second drift angle, 222 places adjacent with first drift angle 221 on light guide plate 220 are provided with first scanning reflection mirror 421, and the 3rd drift angle 223 places adjacent with second drift angle 222 on light guide plate 220 are provided with second scanning reflection mirror 422.First scanning reflection mirror 421 and second scanning reflection mirror 422 are the MEMS (micro electro mechanical system) scanning micro-mirror (MEMS Scanning Mirror) of single shaft in the present embodiment.In the present embodiment, the mutually orthogonal setting of torsion shaft of described first scanning reflection mirror 421 and second scanning reflection mirror 422.Single shaft MEMS (micro electro mechanical system) scanning micro-mirror can be with light scanning reflection the becoming light that has different directions in the two dimensional surface.The Infrared of being sent by infrared light sources 321 is incident upon on first scanning reflection mirror 421, Infrared behind first scanning reflection mirror, 421 scanning reflections is incident upon on second scanning reflection mirror 422 again, light is formed on the light that has different exit directions in the three dimensions by two secondary reflections of first scanning reflection mirror 421 and second scanning reflection mirror 422.Light is injected light guide plate inside from the side of light guide plate 220 after first scanning reflection mirror 421 and 422 reflections of second scanning reflection mirror, thereby is covered with whole light guide plate 220.
Please refer to Fig. 7, be infrared touch control input media 130 structural representations of using in the reflection display device (not shown) in the third embodiment of the invention.Similar in infrared touch control input media 130 in the 3rd embodiment and second embodiment, its difference is, first drift angle, 231 places of light guide plate 230 are provided with an infrared light sources 331 and one first scanning reflection mirror 431 in this infrared touch control input media 130, the 3rd drift angle 233 places are provided with an infrared light sources 332 and one first scanning reflection mirror 433, second drift angle 232 on light guide plate 230 is provided with second scanning reflection mirror, 432, the four drift angles, 234 places and is provided with second scanning reflection mirror 434.In the present embodiment, first scanning reflection mirror 431,433 and second scanning reflection mirror 432,434 are the MEMS (micro electro mechanical system) scanning micro-mirror (MEMSScanning Mirror) of single shaft, the mutually orthogonal setting of torsion shaft of described first scanning reflection mirror 431 and second scanning reflection mirror 432, the torsion shaft of first scanning reflection mirror 433 and second scanning reflection mirror 434 is mutually orthogonal.
In the present embodiment, the infrared ray that is sent by infrared light sources 331 is incident upon on first scanning reflection mirror 431, infrared ray behind first scanning reflection mirror, 431 scanning reflections is incident upon on second scanning reflection mirror 432 again, and nationality reflects to form the infrared ray that has different exit directions in three dimensions by first scanning reflection mirror 431 and second scanning reflection mirror 432 twice.The infrared ray that is sent by infrared light sources 332 is incident upon on first scanning reflection mirror 433, infrared ray behind first scanning reflection mirror, 433 scanning reflections is incident upon on second scanning reflection mirror 434 again, and nationality reflects to form the infrared ray that has different exit directions in three dimensions by first scanning reflection mirror 433 and second scanning reflection mirror 434 twice.After two single shaft scanning reflection mirror scanning, inject light guide plate inside respectively by the infrared ray that infrared light sources 331,332 sends, thereby be covered with whole light guide plate 230 from the incident area 203 of light guide plate 230 sides.
Please refer to Fig. 8, be the structural representation of reflection display device 140 in the 4th embodiment of the present invention.In the 4th embodiment, optical illumination function and infrared touch control function before this reflection display device 140 is integrated simultaneously.Reflection display device 140 in the 4th embodiment and the structural similarity in first embodiment, its difference is, first drift angle, 241 places of light guide plate 240 are provided with a lighting source 341 and an infrared light sources 343 in the reflection display device 140, and the 3rd drift angle 243 places relative with first drift angle 241 on the light guide plate 240 are provided with a lighting source 342 and an infrared light sources 344.In the present embodiment, lighting source 341,342 is light emitting diode (LED) light source, and the LED that lighting source 341,342 also can adopt three RGB mixed lights is as light source or directly adopt packaged white light LEDs packaging body.
To similar in first embodiment, second drift angle, 242 places are provided with a scanning reflection mirror 441 on the light guide plate 240, the 4th drift angle 244 places are provided with scanning reflection mirror 442, and scanning reflection mirror 441,442 is the MEMS (micro electro mechanical system) scanning micro-mirror (MEMSScanning Mirror) of twin shaft in the present embodiment.The light that is sent by lighting source 341 is incident upon on the scanning reflection mirror 441, the light that is sent by lighting source 342 is incident upon on the scanning reflection mirror 442, by the rotation of the reflecting surface of scanning reflection mirror 441,442 light is reflexed to different directions and form scanning ray, inject light guide plate inside from the incident area 204 of the side of light guide plate 240 then, be covered with whole light guide plate 240 uniformly.The light that is sent by infrared light sources 343 is incident upon on the scanning reflection mirror 441, the light that is sent by infrared light sources 344 is incident upon on the scanning reflection mirror 442, light is injected light guide plate inside with different incident angles from the incident area 204 of light guide plate 240 after scanning reflection mirror 441,442 reflections, Infrared is covered with whole light guide plate 240 uniformly.
Please, between light guide plate 240 and display layer 143, also be provided with diffuser plate 540, also be integrated with a plurality of infrared sensors 541 on the diffuser plate 540 to similar in first embodiment in the lump with reference to figure 9.When finger touch light guide plate 240, be positioned at the infrared signal interruption that the infrared sensor 541 below pointing receives, thereby determine touch location.
The light that lighting source 341 sends is incident upon on the scanning reflection mirror 441, the light that lighting source 342 sends is incident upon on the scanning reflection mirror 442, by the rotation of the reflecting surface of scanning reflection mirror 441,442 light is reflexed to different directions and form scanning ray, the light of injecting light guide plate 240 inside from the incident area 204 of light guide plate 240 is covered with whole light guide plate 240 with each different directions first surface 2044 and 245 interreflections of second surface in light guide plate 240.The light that part arrives second surface 245 also incides diffuser plate 540 through refraction, is diffused into the surface of display layer 143, and passes diffuser plate 540 and light guide plate 240 enters people's eyes after display layer 143 reflections.
The side of light guide plate 240 is coated with highly reflecting films 740 except that the light that is used to make scanning reflection mirror 441,442 reflections is injected the incident area 204 of light guide plate 240, when Infrared and illuminating ray are incident to this light guide plate 240 when inner from incident area 204, and from light guide plate 240 internal emission when being coated with the side regions of highly reflecting films 740, highly reflecting films 740 reflect those light, make it be emitted to light guide plate 240 inside again.These highly reflecting films 740 can be the metallic mirror surface reflectance coatings that is deposited on light guide plate 240 sides.
Please refer again to Fig. 8, preferred, also be provided with collector lens 640 between lighting source 341 and the scanning reflection mirror 441 and between lighting source 342 and the scanning reflection mirror 442 in the present embodiment, be used for the light that aggregated illumination light source 341,342 sends.The light that lighting source 341,342 sends is emitted to scanning reflection mirror 441,442 again after collector lens 640 is assembled.In other embodiments, lighting source 341,342 also can be other light sources such as LASER Light Source, when adopting LASER Light Source,, therefore in the embodiment that adopts LASER Light Source, do not needing to set up collector lens 640 or other concentrating component because LASER Light Source itself has poly-optical activity.
In other embodiments, lighting source, infrared light sources and scanning reflection mirror also can not be arranged at the diagonal angle of light guide plate 240.Lighting source, infrared light sources and scanning reflection mirror only need be arranged at the side of light guide plate 240, and the light that lighting source and infrared light sources are sent incides light guide plate 240 inner getting final product after the scanning reflection mirror reflection.The quantity of lighting source can be designed to more than one or one as required, infrared light sources quantity is identical with the quantity of lighting source, each infrared light sources all is close to a lighting source setting, and with next-door neighbour the public scanning reflection mirror of lighting source, the quantity of scanning reflection mirror is identical with the quantity of lighting source.
In other embodiments, the surface sweeping catoptron also can with second embodiment in identical, adopt two single shaft MEMS (micro electro mechanical system) scanning micro-mirrors, by two single shaft scanning reflection mirrors through two secondary reflections with illuminating ray with have the light of different exit directions in Infrared is formed on three dimensions, and inject light guide plate 240.
Those skilled in the art will be appreciated that; above embodiment only is to be used for illustrating the present invention; and be not to be used as limitation of the invention; as long as within connotation scope of the present invention, appropriate change and variation that above embodiment is done all drop within the scope of protection of present invention.
Claims (17)
1. the display device with infrared touch control function comprises display layer, it is characterized in that: also comprise
One light guide plate is arranged at described display layer top, and described light guide plate comprises away from the display layer first surface, near the second surface of display layer and the side that connects first surface and second surface;
One substrate is arranged between described light guide plate and the display layer, is formed with the infrared sensor array on the described substrate;
At least one infrared light sources is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror; And
One processing unit;
The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface; When the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, and infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to this signal.
2. the display device with infrared touch control function as claimed in claim 1 is characterized in that: described at least one scanning reflection mirror is the MEMS (micro electro mechanical system) scanning micro-mirror.
3. the display device with infrared touch control function as claimed in claim 1 is characterized in that: described at least one scanning reflection mirror is a twin shaft scanning reflection mirror.
4. the display device with infrared touch control function as claimed in claim 1 is characterized in that: described at least one scanning reflection mirror is two single shaft scanning reflection mirrors, and the torsion shaft of these two single shaft scanning reflection mirrors is mutually orthogonal.
5. the display device with infrared touch control function as claimed in claim 1 is characterized in that: described light guide plate side all is coated with highly reflecting films except the light that makes the scanning reflection mirror reflection is injected the incident area of light guide plate.
6. the display device with infrared touch control function as claimed in claim 5 is characterized in that: described highly reflecting films are the metallic mirror surface reflectance coating, and this metallic mirror surface reflectance coating can be a kind of in aluminium film, golden film and the silverskin.
7. the display device with infrared touch control function as claimed in claim 1 is characterized in that: described infrared sensor forms an infrared array sensor by film printing method, manufacture of semiconductor or micro electronmechanical processing procedure on the surface of substrate.
8. an infrared touch control device comprises
One substrate, described substrate are formed with an infrared sensor array;
One light guide plate, described light guide plate comprise away from the display layer first surface, near the second surface of display layer and the side that connects first surface and second surface;
At least one infrared light sources is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror; And
One processing unit;
The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface; When the finger touch light guide plate, be positioned at the infrared signal interruption that the infrared sensor below pointing receives, infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to the infrared sensor that sends this signal.
9. infrared touch control device as claimed in claim 8 is characterized in that: described at least one scanning reflection mirror is the MEMS (micro electro mechanical system) scanning micro-mirror.
10. infrared touch control device as claimed in claim 8 is characterized in that: described at least one scanning reflection mirror is a twin shaft scanning reflection mirror or two single shaft scanning reflection mirrors.
11. infrared touch control device as claimed in claim 8 is characterized in that: described infrared sensor forms an infrared array sensor by the surface that the film printing method is printed on substrate.
12. the reflection display device with preceding illuminating apparatus and infrared touch control function comprises display layer, it is characterized in that: also comprise
One light guide plate is arranged at described display layer top, and described light guide plate comprises away from the display layer first surface, near the second surface of display layer and the side that connects first surface and second surface;
One diffuser plate is arranged between described light guide plate and the display layer, is formed with the infrared sensor array on the described diffuser plate; And
At least one infrared light sources is arranged on the side of light guide plate, and at least one lighting source is arranged on the side of light guide plate, and described light guide plate side also is provided with at least one scanning reflection mirror; And
One processing unit;
The light that is sent by lighting source incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward and is reflected and inject diffuser plate and diffuse to display layer with each different directions interreflection between the first surface of light guide plate and second surface, and preceding optical illumination is provided;
The infrared ray that is sent by infrared light sources incides light guide plate inside after the scanning reflection mirror reflection, the light of injecting light guide plate inside is propagated forward with each different directions interreflection between the first surface of light guide plate and second surface, when the finger touch light guide plate, the infrared sensor that is positioned at the finger below receives infrared signal and interrupts, infrared sensor sends a signal to processing unit, and processing unit is determined touch location according to this signal.
13. the reflection display device with preceding illuminating apparatus and infrared touch control function as claimed in claim 12 is characterized in that: described at least one scanning reflection mirror is the MEMS (micro electro mechanical system) scanning micro-mirror.
14. the reflection display device with preceding illuminating apparatus and infrared touch control function as claimed in claim 12 is characterized in that: described at least one scanning reflection mirror is a twin shaft scanning reflection mirror or two single shaft scanning reflection mirrors.
15. the reflection display device with preceding illuminating apparatus and infrared touch control function as claimed in claim 12 is characterized in that: described light guide plate side all is coated with highly reflecting films except the light that makes the scanning reflection mirror reflection is injected the incident area of light guide plate.
16. the reflection display device with preceding illuminating apparatus and infrared touch control function as claimed in claim 12 is characterized in that: described lighting source is led light source or radium-shine light source.
17. the reflection display device with preceding illuminating apparatus and infrared touch control function as claimed in claim 12, it is characterized in that: also be provided with collector lens between described lighting source and the scanning reflection mirror, the light that is used for lighting source is sent produces congregation.
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| CN201110071975XA CN102109934A (en) | 2011-03-24 | 2011-03-24 | Touch input device and display device using the same |
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| CN201110071975XA CN102109934A (en) | 2011-03-24 | 2011-03-24 | Touch input device and display device using the same |
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| CN103187006A (en) * | 2011-12-27 | 2013-07-03 | 致伸科技股份有限公司 | Display device and input device with multilayer luminous patterns |
| CN103208235A (en) * | 2012-01-16 | 2013-07-17 | 致伸科技股份有限公司 | Display device and input device with multiple layers of light-emitting patterns |
| CN104571658A (en) * | 2013-10-17 | 2015-04-29 | 鸿富锦精密工业（深圳）有限公司 | Reflection type display module and electronic device using reflection type display module |
| CN105843456A (en) * | 2015-01-16 | 2016-08-10 | 致伸科技股份有限公司 | Touch device |
| CN115016677A (en) * | 2021-09-28 | 2022-09-06 | 荣耀终端有限公司 | Touch control assembly and electronic equipment |
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| CN104571658A (en) * | 2013-10-17 | 2015-04-29 | 鸿富锦精密工业（深圳）有限公司 | Reflection type display module and electronic device using reflection type display module |
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Application publication date: 20110629 |