CN101739178A - Touch interactive panel, interactive system and interactive method thereof - Google Patents
Touch interactive panel, interactive system and interactive method thereof Download PDFInfo
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- CN101739178A CN101739178A CN200810225891A CN200810225891A CN101739178A CN 101739178 A CN101739178 A CN 101739178A CN 200810225891 A CN200810225891 A CN 200810225891A CN 200810225891 A CN200810225891 A CN 200810225891A CN 101739178 A CN101739178 A CN 101739178A
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Abstract
The invention provides a touch interactive panel, an interactive system and an interactive method thereof. The panel comprises a support layer for supporting the whole panel, a total reflection layer disposed above the support layer and used for totally reflecting the light transmitted on the total reflection layer, a total reflection coupling layer adhered to the total reflection layer and used for generating deformation under the effect of external force to destroy the total reflection condition of the total reflection layer so as to scatter the light where the external force acts, a projection imaging layer disposed above the total reflection coupling layer and used for projecting the imaging of an image so that a user views, and a wear-resistant protective layer disposed above the projection imaging layer and used for isolating the influence of the external light. The invention has the advantages of favorable robustness of the system and having a screen protective measure, thus a plurality of operations can be supported and the influence or the damage on the touch screen is less.
Description
Technical field
The present invention in particular to human-computer interaction technology, is the mutual panel of a kind of touch-control, interactive system and exchange method thereof relevant for mode identification technology specifically.
Background technology
At present, along with the fast development of digital technology, in a lot of fields, all need to apply to fast, accurately and have an interactive system of hommization, for example especially can apply to the interactive system of touch-screen type at bank ATM machine etc.
Yet, along with the interactive system of utilization touch-screen types such as for example banking is carried out the expansion of mutual function, simple click waits operation not satisfy the expansion of more function, therefore needing a kind ofly can have total-reflection type multi-point touch control type interaction technique to this present proposition to the interactive system that drags, operation such as double-click is discerned and handled.
The structural representation of above-mentioned existing total-reflection type multi-point touch control type interactive system that shown in Figure 1 is, as shown in Figure 1, the principle of existing total-reflection type multi-point touch control type interactive system is as follows: the infrared light that is sent by LED is in total reflection layer generation total reflection, when other object touching total reflection layer surfaces, will destroy the total reflection condition in touching zone, obtain the positional information of object by infrared image acquiring equipment and tracking registration algorithm, thereby the man-machine interaction means of nature are provided.
But the shortcoming of this existing total-reflection type multi-point touch control type interactive system is that the robustness of its system is poor, and finger feel when touching is jerky.In addition, this system lacks the screen protection measure, and for example the sweat stain of skin is bigger to the light reaction influence, and the touch-screen of this system can not be discerned finger object in addition.
Therefore, just need a kind ofly can support multiple operation and to the influence of touch-screen or damage fewer touch interactive system.
At this, " display device with touch-control input function " patent application document of Chinese patent publication number CN101034332A is incorporated in this, as prior art of the present invention.
Summary of the invention
The present invention just is based on the problems referred to above and proposes, its purpose is to provide the mutual panel of a kind of touch-control, interactive system and exchange method thereof, thereby provides and can support multiple operation and artificial influence or damage fewer touch-screen to utilizing Touch Screen to carry out mutual system.
In order to realize the purpose of the invention described above, embodiments of the invention provide a kind of touch-control mutual panel, and this panel comprises: supporting layer is used to support whole front panel; Total reflection layer, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer; The total reflection coupling layer, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; The projection imaging layer, the top that it is placed on described total reflection coupling layer is used for the imaging of projected image, watches for the user; And wear-resistant protective seam, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light.
In order to realize the purpose of the invention described above, embodiments of the invention also provide the manufacture method of the mutual panel of a kind of touch-control, and this method comprises: form a supporting layer; On described supporting layer, form total reflection layer, be used for the light that total reflection is transmitted on this total reflection layer; On described total reflection layer, form the total reflection coupling layer, destroy described totally reflected total reflection condition thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; On described total reflection coupling layer, form the projection imaging layer, be used for the imaging of projected image, watch for the user; And on described projection imaging layer, form wear-resistant protective seam, be used for the influence of isolated exterior light.
In order to realize the purpose of the invention described above, embodiments of the invention provide a kind of interactive system again, and this interactive system comprises: the mutual panel of touch-control, and it comprises: supporting layer is used to support whole front panel; Total reflection layer, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer; The total reflection coupling layer, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; The projection imaging layer, the top that it is placed on described total reflection coupling layer is used for the imaging of projected image, watches for the user; And, wear-resistant protective seam, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light; The projection imaging unit is used for to described projection imaging layer projection image; And graphics processing unit, be used to receive the light of described scattering, obtain the interaction figure picture according to the light of this reception, and in conjunction with the image of described projection this interaction figure is looked like to handle and judge interactive information and output.
In order to realize the purpose of the invention described above, embodiments of the invention provide a kind of exchange method in addition, and this method may further comprise the steps: the light that transmits on total reflection layer carries out total reflection; Destroy described totally reflected total reflection condition under external force, thus the described light of masterpiece use scattering outside; Projection multi-point touch image is watched for the user; The influence of isolated exterior light; Receive the light of described scattering, obtain the interaction figure picture, and in conjunction with the multi-point touch image of described projection this interaction figure is looked like to handle and judge interactive information and output according to the light of this reception.
Therefore beneficial effect of the present invention is: the robustness of system is relatively good, and has the screen protection measure, can support multiple operation and to the influence of touch-screen or damage fewer.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
The structural representation of above-mentioned existing total-reflection type multi-point touch control type interactive system that shown in Figure 1 is.
Shown in Figure 2 is the structural representation of the mutual panel of touch-control of the embodiment of the invention 1.
Shown in Figure 3 is the manufacturing flow chart of the mutual panel of touch-control of embodiments of the invention 1.
Shown in Figure 4 is the structural representation of the mutual panel of touch-control of the embodiment of the invention 2.
Shown in Figure 5 is the vertical view of the mutual panel of touch-control of the embodiment of the invention 2.
Shown in Figure 6 is the synoptic diagram of the interactive system of the embodiment of the invention 3.
Shown in Fig. 7 A is the structured flowchart of the graphics processing unit of the embodiment of the invention 3.
Shown in Fig. 7 B is the structured flowchart of the projection imaging unit of the embodiment of the invention 3.
Shown in Figure 8 is the process flow diagram of the exchange method of the embodiment of the invention 3.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further details below in conjunction with embodiment and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The embodiment of the invention provides the mutual panel of a kind of touch-control, interactive system and exchange method thereof.The present invention is described in detail below in conjunction with accompanying drawing.
Embodiment 1
Shown in Figure 2 is the structural representation of the mutual panel of touch-control of the embodiment of the invention 1, and as shown in Figure 2, the mutual panel of the touch-control of the embodiment of the invention 1 comprises: supporting layer 201 is used to support whole front panel; Total reflection layer 202, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer; Total reflection coupling layer 203, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; Projection imaging layer 204, it is placed on described totally reflected top, is used for the imaging of projected image, watches for the user; And wear-resistant protective seam 205, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light.
Shown in Figure 3 is the manufacturing flow chart of the mutual panel of touch-control of embodiments of the invention 1, and as shown in Figure 3, the manufacture method of the mutual panel of touch-control of embodiments of the invention 1 comprises:
S301: form a supporting layer;
S302: on described supporting layer, form total reflection layer, be used for the light that total reflection is transmitted on this total reflection layer;
S303: on described total reflection layer, form the total reflection coupling layer, destroy described totally reflected total reflection condition thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside;
S304: on described total reflection coupling layer, form the projection imaging layer, be used for the imaging of projected image, watch for the user;
S305: on described projection imaging layer, form wear-resistant protective seam, be used for the influence of isolated exterior light.
Therefore the mutual panel of making by the manufacture method of the embodiment of the invention 1 of touch-control has the screen protection measure, can support multiple operation and to the influence of touch-screen or damage fewer.
Embodiment 2
Shown in Figure 4 is the structural representation of the mutual panel of touch-control of the embodiment of the invention 2, and as shown in Figure 4, the mutual panel of the touch-control of the embodiment of the invention 2 comprises: supporting layer 401 is used to support whole front panel; Total reflection layer 402, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer; Total reflection coupling layer 403, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; Projection imaging layer 404, it is placed on described totally reflected top, is used for the imaging of projected image, watches for the user; Wear-resistant protective seam 405, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light; And air barrier 406, between described total reflection coupling layer and described projection imaging layer, be used to isolate described total reflection coupling layer and described projection imaging layer.
Shown in Figure 5 is the vertical view of the mutual panel of touch-control of the embodiment of the invention 2; as shown in Figure 5; supporting layer 401 places bottom; total reflection layer 402 is positioned over directly over the supporting layer 401; utilize coated technique to make total reflection coupling layer 403 on it; place projection imaging layer 404 above it, and utilize the frosted structure of projection imaging layer 404 between projection imaging layer 404 and total reflection coupling layer 403, to form air barrier 406, at the wear-resistant protective seam 405 of surface coverage.
The mutual panel of the touch-control of the embodiment of the invention 2 also comprises: the linear light source framework of LED, its be close to the mutual panel of described touch-control around, the linear light source framework of this LED is to be formed by connecting by a series of near-infrared LED (wavelength is 850nm-940nm), mainly is responsible for providing near-infrared light source.
Above-mentioned supporting layer 401 is made of tempered glass (waiting the transparent load-bearing strong character material that has) in the embodiment of the invention 2, is used to support the whole front panel structure;
Total reflection layer 402 adopts organic glass (polymethylmethacrylate) (and all can play the light-conductive media of total reflection effect) to make through the cut surface glossing, closely link to each other with the linear near-infrared light source of LED, the near-infrared light source that LED sends enters and wherein produces total reflection;
Total reflection coupling layer 403 adopts the coated processing technology of silica gel material to make it attached on the total reflection layer, it has high transparent (can not influence the effect of projected image), the refractive index similar (so near infrared light between total reflection coupling layer and total reflection layer, can transmit smoothly and do not destroy total reflection condition) to poly (methyl methacrylate) plate, stronger adhesion property (can well attached to should not come off on the total reflection layer and enter air), high resiliency (finger just touches can produce deformation, and can recover original shape rapidly), long serviceable life and 100 degrees centigrade resistance to elevated temperatures.Thereby it mainly acts on is exactly to utilize finger or the touching of other objects to make it to produce deformation to destroy its total reflection condition, thereby produces the near infrared hot spot in click place;
The effect of air barrier 406 is with isolating total reflection coupling layer and projection imaging layer, prevent to cause total reflection condition to destroy because the total reflection coupling layer directly contacts with the projection imaging layer, produce incorrect near infrared hot spot, promptly its fundamental purpose is to place the above-mentioned two-layer total reflection reaction that under gravity condition binding effect takes place and produce mistake;
Projection imaging layer 404 uses rear-projection projection film to constitute, and is mainly used in the imaging of projected image;
Wear-resistant protective seam 405 is made of silicon rubber film, and it has good abrasion resistance, good touch-control feel, the good transparency, good infrared light isolation performance and long life-span.Its function has the inner structure of the mutual panel of protection, the influence of the near infrared light of good hand feeling, isolated device external is provided for user's operation.
Embodiment 3
Shown in Figure 6 is the synoptic diagram of the interactive system of the embodiment of the invention 3, as shown in Figure 6, the interactive system of embodiments of the invention 3 comprises: the mutual panel 601 of touch-control (its structure is identical with the mutual panel of touch-control of the embodiment 2 of the invention described above, does not therefore repeat them here); Projection imaging unit 602 is used for to described projection imaging layer projection image; And graphics processing unit 603, be used to receive the light of described scattering, obtain the interaction figure picture according to the light of this reception, and in conjunction with the image of described projection this interaction figure is looked like to handle and judge interactive information and output.
Shown in Fig. 7 A is the structured flowchart of the graphics processing unit of the embodiment of the invention 3, and shown in Fig. 7 A, the graphics processing unit of the embodiment of the invention 3 comprises: image capture module 701, receive the light of described scattering, and obtain the interaction figure picture according to the light of this reception; Computing module 702 looks like to handle centre coordinate, direction, the trigger point coding that obtains described interaction figure picture in conjunction with the image of described projection to described interaction figure; Output module 703 is according to centre coordinate, direction, trigger point coding generation interactive information and the output of described interaction figure picture.
Shown in Fig. 7 B is the structured flowchart of the projection imaging unit of the embodiment of the invention 3, shown in Fig. 7 B, the projection imaging unit of the embodiment of the invention 3 comprises: image output module 704 is used to export the multi-point touch image and at the described multi-point touch image of described projection imaging layer projection; Real-time rendering module 705 is used for according to described interactive information, and described multi-point touch image is carried out real-time rendering.
Wherein, in the embodiment of the invention 3, image capture module 701 uses near infrared cameras or CCD (image capture device and near infrared optical filtering by the high IR response of high definition are formed) to catch near infrared interaction figure picture; Computing module 702 can be by server independently, for example is made of high-performance image workstation (or embedded OS or DSP, FPGA etc. have the electron device of image processing function).
Shown in Figure 8 is the process flow diagram of the exchange method of the embodiment of the invention 3.
Below in conjunction with Fig. 8, specifically retouch the mutual method of carrying out of the interactive system of utilizing the embodiment of the invention 3.
When the mutual faceplate part that does not have finger or opaque article with the interactive system of the embodiment of the invention 3 contacts, the total reflection condition of whole total reflection layer and total reflection coupling layer does not have destroyed, carrying out total reflection (S801) does not therefore have near infrared light to spill, image-capturing apparatus can not capture agglomerate (speck), so response can not appear in total system.
When finger or opaque article contact with the mutual faceplate part of the interactive system of the embodiment of the invention 3 (S802), deformation owing to take place in the total reflection coupling layer, the total reflection condition at this place is destroyed, and near infrared light will scatter out and forms hot spot in position, touching ground from the total reflection coupling layer.
This moment, the projection imaging unit was observed (S803) to projection imaging layer projection multi-point touch image for the user.
The image (S804) that completely cuts off external light source simultaneously.
Image capture module collects to have hot spot (single or multiple) and send graphics processing unit to and handles.Graphics processing unit carries out picture noise pre-service filtering Gaussian noise to the image that collects; Obtain foreground image (image that only contains agglomerate) by difference algorithm and background accumulative total algorithm then; Detect centre coordinate, direction and the size information that (edge detection algorithm and ellipse fitting algorithm) obtains agglomerate by agglomerate; By the agglomerate tracking module obtain the trigger point coding of agglomerate and incident (finger presses, point lift, point drag); Utilize the small shake of data smoothing algorithm filtering; Send output information to the projection imaging part by the multiconductor media interface then.Projection imaging partly utilizes the data of image processing section to carry out the real-time multimedia image processing, and the multimedia image of handling out will be transferred to projector's output, observe (S805) for the user.
Therefore beneficial effect of the present invention is: the robustness of system is relatively good, and has the screen protection measure, can support multiple operation and to the influence of touch-screen or damage fewer.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (20)
1. mutual panel of touch-control is characterized in that this panel comprises:
Supporting layer is used to support whole front panel;
Total reflection layer, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer;
The total reflection coupling layer, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside;
The projection imaging layer, the top that it is placed on described total reflection coupling layer is used for the imaging of projected image, watches for the user; And
Wear-resistant protective seam, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light.
2. the mutual panel of touch-control according to claim 1, it is characterized in that, the mutual panel of described touch-control also comprises: air barrier between described total reflection coupling layer and described projection imaging layer, is used to isolate described total reflection coupling layer and described projection imaging layer.
3. the mutual panel of touch-control according to claim 1 is characterized in that, described total reflection layer is to adopt organic glass to make through the cut surface glossing.
4. the mutual panel of touch-control according to claim 1 is characterized in that, described total reflection coupling layer is to adopt the coated processing technology of silica gel material attached on the described total reflection layer.
5. the mutual panel of touch-control according to claim 1 is characterized in that described projection imaging layer is made of rear-projection projection film.
6. the mutual panel of touch-control according to claim 1 is characterized in that, the mutual panel of described touch-control also comprises: the linear light source framework of LED, its be close to the mutual panel of described touch-control around.
7. the mutual panel of touch-control according to claim 6 is characterized in that the linear light source framework of described LED is to be formed by connecting by a series of near-infrared LED, and near-infrared light source is provided.
8. an interactive system is characterized in that, this interactive system comprises:
The mutual panel of touch-control, it comprises: supporting layer is used to support whole front panel; Total reflection layer, the top that it is positioned over supporting layer is used for the light that total reflection is transmitted on this total reflection layer; The total reflection coupling layer, it destroys described totally reflected total reflection condition attached on the described total reflection layer thereby be used for producing under external force deformation, thus the described light of masterpiece use scattering outside; The projection imaging layer, the top that it is placed on described total reflection coupling layer is used for the imaging of projected image, watches for the user; And, wear-resistant protective seam, the top that it is placed on described projection imaging layer is used for the influence of isolated exterior light;
The projection imaging unit is used for to described projection imaging layer projection image; And
Graphics processing unit is used to receive the light of described scattering, obtains the interaction figure picture according to the light of this reception, and in conjunction with the image of described projection this interaction figure is looked like to handle and judge interactive information and output.
9. interactive system according to claim 8 is characterized in that, the mutual panel of described touch-control also comprises: air barrier between described total reflection coupling layer and described projection imaging layer, is used to isolate described total reflection coupling layer and described projection imaging layer.
10. interactive system according to claim 8 is characterized in that, described total reflection layer is to adopt organic glass to make through the cut surface glossing.
11. interactive system according to claim 8 is characterized in that, described total reflection coupling layer is to adopt the coated processing technology of silica gel material attached on the described total reflection layer.
12. interactive system according to claim 8 is characterized in that, described projection imaging layer is made of rear-projection projection film.
13. interactive system according to claim 8 is characterized in that, the mutual panel of described touch-control also comprises: the linear light source framework of LED, its be close to the mutual panel of described touch-control around.
14. interactive system according to claim 13 is characterized in that, the linear light source framework of described LED is to be formed by connecting by a series of near-infrared LED, and near-infrared light source is provided.
15. interactive system according to claim 8 is characterized in that, described graphics processing unit comprises:
Image capture module receives the light of described scattering, obtains the interaction figure picture according to the light of this reception;
Computing module looks like to handle centre coordinate, direction, the trigger point coding that obtains described interaction figure picture in conjunction with the image of described projection to described interaction figure;
Output module is according to centre coordinate, direction, trigger point coding generation interactive information and the output of described interaction figure picture.
16. interactive system according to claim 8 is characterized in that, described projection imaging unit comprises:
Image output module is used to export the multi-point touch image and at the described multi-point touch image of described projection imaging layer projection;
The real-time rendering module is used for according to described interactive information, and described multi-point touch image is carried out real-time rendering.
17. an exchange method is characterized in that, described exchange method may further comprise the steps:
The light that transmits on total reflection layer carries out total reflection;
Destroy described totally reflected total reflection condition under external force, thus the described light of masterpiece use scattering outside;
Projection multi-point touch image is watched for the user;
The influence of isolated exterior light;
Receive the light of described scattering, obtain the interaction figure picture, and in conjunction with the multi-point touch image of described projection this interaction figure is looked like to handle and judge interactive information and output according to the light of this reception.
18. exchange method according to claim 17 is characterized in that, described multi-point touch image in conjunction with projection looks like to handle the step of judging interactive information and output to interaction figure and comprises:
Image in conjunction with described projection looks like to handle centre coordinate, direction, the trigger point coding that obtains described interaction figure picture to described interaction figure;
Centre coordinate, direction, trigger point coding according to described interaction figure picture generate interactive information and output.
19. exchange method according to claim 17 is characterized in that, described projection multi-point touch image, and the step of watching for the user comprises:
Output multi-point touch image and at the described multi-point touch image of described projection imaging layer projection;
According to described interactive information, described multi-point touch image is carried out real-time rendering.
20. exchange method according to claim 17 is characterized in that, described multi-point touch image in conjunction with projection looks like to handle the step of judging interactive information to this interaction figure and comprises:
Look like to carry out picture noise pre-service filtering Gaussian noise to obtaining interaction figure;
Obtain foreground image by difference algorithm and background accumulative total algorithm;
Described foreground image is come out to obtain centre coordinate, direction and the size information of interaction figure picture by edge detection algorithm and ellipse fitting algorithm;
Obtain the trigger point coding and the incident at interaction figure picture place, this incident comprises pressing, lift, dragging of object;
Utilize the small shake of data smoothing algorithm filtering.
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| CN200810225891A CN101739178A (en) | 2008-11-05 | 2008-11-05 | Touch interactive panel, interactive system and interactive method thereof |
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| CN200810225891A CN101739178A (en) | 2008-11-05 | 2008-11-05 | Touch interactive panel, interactive system and interactive method thereof |
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| CN103186259A (en) * | 2010-12-06 | 2013-07-03 | 胜华科技股份有限公司 | Covering plate structure, manufacturing method thereof and touch display device |
| CN103577019A (en) * | 2012-08-08 | 2014-02-12 | 阿尔卑斯电气株式会社 | Input device |
| CN104345995A (en) * | 2014-10-27 | 2015-02-11 | 京东方科技集团股份有限公司 | Touch panel |
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| CN105094460A (en) * | 2015-05-27 | 2015-11-25 | 京东方科技集团股份有限公司 | Touch module group, touch screen and display device |
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| CN103577019B (en) * | 2012-08-08 | 2016-09-21 | 阿尔卑斯电气株式会社 | Input equipment |
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| CN105184431A (en) * | 2015-05-19 | 2015-12-23 | 杭州精工机械有限公司 | Operation management system of toughened glass technology |
| CN105094460A (en) * | 2015-05-27 | 2015-11-25 | 京东方科技集团股份有限公司 | Touch module group, touch screen and display device |
| US9965103B2 (en) | 2015-05-27 | 2018-05-08 | Boe Technology Group Co., Ltd. | Touch module and touch screen |
| US10203813B2 (en) | 2015-05-27 | 2019-02-12 | Boe Technology Group Co., Ltd. | Touch module and touch screen |
| US9947206B2 (en) | 2015-09-16 | 2018-04-17 | Lenovo (Beijing) Co., Ltd. | Electronic device and control method thereof |
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| CN108255352A (en) * | 2017-12-29 | 2018-07-06 | 安徽慧视金瞳科技有限公司 | Multiple point touching realization method and system in a kind of projection interactive system |
| CN108255352B (en) * | 2017-12-29 | 2021-02-19 | 安徽慧视金瞳科技有限公司 | Multi-touch implementation method and system in projection interaction system |
| CN109753113A (en) * | 2018-05-31 | 2019-05-14 | 北京字节跳动网络技术有限公司 | A kind of electronic equipment and its light sensitive device |
| CN111812039A (en) * | 2020-06-19 | 2020-10-23 | 天津大学 | Underwater touch sensing device and method based on polarization imaging principle |
| CN111812039B (en) * | 2020-06-19 | 2022-10-04 | 天津大学 | Underwater touch sensing device and method based on polarization imaging principle |
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