CN101976156A - Optical touch display - Google Patents
Optical touch display Download PDFInfo
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- CN101976156A CN101976156A CN 201010511912 CN201010511912A CN101976156A CN 101976156 A CN101976156 A CN 101976156A CN 201010511912 CN201010511912 CN 201010511912 CN 201010511912 A CN201010511912 A CN 201010511912A CN 101976156 A CN101976156 A CN 101976156A
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Abstract
The invention relates to an optical touch display comprising a display element, at least three light guide elements, at least two optical touch elements and a transmission interface, wherein the display element is provided with a display surface and a sensing space arranged in front of the display surface; all the light guide elements are arranged on the periphery of the display surface and are provided with two opposite light inlet surfaces and light outlet surfaces connected between the light inlet surfaces; the optical touch elements are arranged beside the display surface and are electrically connected with each other; the optical touch elements comprise sensing processing modules and light sources arranged beside the light inlet surfaces; and the transmission interface is electrically connected with the sensing processing modules. When a touch object enters the sensing space, each sensing processing module senses the light change caused by the touch object in the sensing space to generate a first signal, and the first signal is collected to one of the sensing processing modules; and the first signal is sent out of the optical touch element via the transmission interface after being converted into a second signal.
Description
Technical field
The present invention relates to a kind of touch control display, particularly relate to a kind of optical touch display.
Background technology
In recent years, because the image display technique is constantly progressive, touch control screen is because have the advantage that can directly import by the way of contact, become common on the market now a kind of display device, and be widely used in each electronic product, for example ATM (Automatic Teller Machine), point-of-sale terminals, visitor's guide system or industrial control system etc.
The mode that multiple realization touch-controlling interface is arranged in the prior art.For example, some available liquid crystal display attaches one deck touch control film on panel, realize condenser type or electric resistance touch-control.Perhaps, also there is prior art that small touch control component is done in display panels.
Also there is in addition prior art to adopt the mode of optics sensing to judge finger or pointer position with respect to screen, its be utilize a plurality of optics sensing elements respectively sensing fingers or pointer with respect to the screen position, and then sensing signal is sent in the controller of extra setting, by controller these sensing signals are carried out calculation process and learn the position of object with respect to screen again.Yet this measure but must be provided with separately on screen or operating platform and comprise the relevant apparatus of controller, thereby causes extra manufacturing cost easily and reduce touch-control usefulness.
Moreover above-mentioned these prior aries all adopt the mode of catching dim spot (promptly finger or pointer are blocked the formed dim spot of light) to judge the position of finger., dim spot can distinguish that meeting attaches reflecting strips or light-emitting section in the edge of the display surface of screen usually for can being known.
Yet, when the light of light source when being incident upon sensing cell cause the sensing cell overexposure easily because the brightness of light is excessive, so that sensing cell can't capture the dim spot that finger or pointer are produced on the image that sensing cell captured.On the other hand; when the optical touch element is arranged on the display surface relative to one another; reflecting strips or the light-emitting section of optical touch element regular meeting then because of covering the display surface edge; and cause sensing cell to sense the dim spot of this position and cause erroneous judgement, and then reduce the touch controllable function and the precision of Touch Screen.
Summary of the invention
The invention provides a kind of optical touch display, it utilizes light guide sheet and produces the optical environment of better quality.
The invention provides a kind of optical touch display, it spreads out of the coordinate signal by USB (universal serial bus).
One embodiment of the invention propose a kind of optical touch display, comprise a display element, at least three light-guide devices, at least two optical touch elements and a transmission interface that electrically connects the optical touch element.Display element has a display surface and the sensing space of position before display surface.Light-guide device is configured in the periphery of display surface, and each light-guide device has two incidence surfaces respect to one another and is connected a exiting surface between the incidence surface.The optical touch arrangements of components is other and be electrically connected to each other at display surface.Each optical touch element comprises a sense process module, at least one light source and a transmission interface.Light source is configured in by the corresponding incidence surface, and light source emits beam and is sent to sensing space via incidence surface and exiting surface.When at least one touch object enters sensing space, the light that each sense process module senses is caused in sensing space to touch object changes and produces one first signal, and these first signals are collected to a sense process module wherein, and convert a secondary signal to after spread out of the optical touch element by transmission interface.
One embodiment of the invention propose a kind of optical touch display, comprise a display element, at least three sense process modules, four light-guide devices, a plurality of light source and USB (universal serial bus).Display element has a display surface and the sensing space of position before display surface, and wherein display surface has a pair of long side respect to one another and a pair of short side respect to one another, and each long side is adjacent between short side, and each short side is adjacent between long side.The sense process block configuration is in the other adjacent corner of display surface and be electrically connected to each other.Light-guide device is configured in long side and short side respectively.Each light-guide device has two incidence surfaces respect to one another and is connected a exiting surface between the incidence surface, and exiting surface is towards sensing space.Light source is configured in by the part incidence surface, and each light source emits beam respectively via incidence surface and exiting surface and is sent to sensing space.USB (universal serial bus) electrically connects the sense process module.When at least one touch object enters sensing space, the light that each sense process module senses is caused in sensing space to touch object changes and produces one first signal, and these first signals are collected to a sense process module wherein, and convert a secondary signal to after spread out of the sense process module by USB (universal serial bus).
Based on above-mentioned, in the above embodiment of the present invention, the optical touch display is by the light-guide device that is configured in the display surface periphery, so that the light that light source produced has bright dipping quality uniformly when being sent to sensing space via light-guide device, and then the optical environment of sensing space is improved to increase the touch-control usefulness of touch control display.
Moreover, sense process module that the utilization of optical touch display is electrically connected to each other and connected USB (universal serial bus), and first signal that each sense process module is produced is collected to one sense process module wherein, and convert secondary signal to after spread out of the sense process module by USB (universal serial bus).This measure reduces volume of transmitted data by computing in advance, and saves the transmission time effectively, also makes the optical touch display have higher touch-control efficient.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the synoptic diagram according to a kind of optical touch display of one embodiment of the invention.
Fig. 2 is the partial perspective view of the optical touch display of Fig. 1.
Fig. 3 is the member calcspar of the optical touch display of Fig. 1.
Fig. 4 is that the optical touch display of Fig. 2 is in the sectional view at light-guide device place.
The reference numeral explanation
10: the optical touch display
20: touch object
30: operating platform
100: display element
200: the optical touch element
210: the sense process module
212: circuit board
214: sensor
216: signal processor
220: light source
230: cable
240: the serial circumference interface circuit
300: light-guide device
310: the first parts
320: the second parts
400: transmission interface
500: reflecting element
F1: incidence surface
F2: exiting surface
L1: long side
L2: short side
P1: sensing space
S1: display surface
Embodiment
Fig. 1 is the synoptic diagram according to a kind of optical touch display of one embodiment of the invention.Fig. 2 is the partial perspective view of the optical touch display of Fig. 1.Fig. 3 is the member calcspar of the optical touch display of Fig. 1.Please also refer to Fig. 1 to Fig. 3, in the present embodiment, optical touch display 10 comprises a display element 100, three optical touch elements 200, four light-guide devices 300 and transmission interfaces 400.In the present embodiment, display element 100 is LCD, and transmission interface 400 be a USB (universal serial bus) (universal serial bus, USB).But present embodiment is not as limit, in the present invention among another embodiment that does not illustrate, display element can be other electronic installations with Presentation Function, and transmission interface also other relevant human-computer interface devices (Human Interface Device, HID).
In Fig. 1 and Fig. 2, be the relation between the clear expression member, so the partial component of optical touch display 10 is to illustrate with dotted line.Please refer to Fig. 1 and Fig. 2, display element 100 has a tetragonal display surface S1 and the sensing space P1 of position before display surface.Light-guide device 300 is configured in the periphery of display surface S1, and each light-guide device 300 has two incidence surface F1 respect to one another and is connected an exiting surface F2 between the incidence surface F1 (only indicating wherein one light-guide device 300 as representative at this).Each optical touch element 200 comprises a sense process module 210 and a plurality of light sources 220.Light source 220 is configured in by the incidence surface F1 of light-guide device 300, and the light that sends of light source 220 is via incidence surface F1 and exiting surface F2 and be sent to sensing space P1.
Moreover in the present embodiment, light source 220 for example is invisible light light sources such as infrared ray.The light that light source 220 produced is sent to sensing space P1 via light-guide device 300 in regular turn, has the area source of uniform luminance by it, and makes the light that the is sent to sensing space P1 light field in the middle formation uniform luminance of sensing space P1.
Fig. 4 is that the optical touch display of Fig. 2 is in the sectional view at light-guide device place.Please refer to Fig. 4, optical touch display 10 also comprises a plurality of reflecting elements 500 in the present embodiment, and reflecting element 500 for example is reflecting piece or retroreflective sheeting, and it is coated on the outside of light-guide device 300 and exposes light-guide device 300 exiting surface F2.Only illustrate the reflecting element 500 conduct representatives that are coated on the light-guide device 310 at this, and just repeat no more in the reflecting element 500 at light-guide device 320 places.By this, the light that enters light-guide device 300 from incidence surface F1 is able to reflex to exiting surface F2 by reflecting element 500, to improve the amount of light of light at exiting surface F2.In addition, among another embodiment that does not illustrate, also can be coated with reflective membrane to form above-mentioned reflecting element 500 in the present invention at the non-incidence surface F1 of light-guide device 300 and the surface of non-exiting surface F2.Moreover, also can on light-guide device, form microstructure, it for example is to form on light-guide device surface in order to increasing the indentation of lighting area or light scatter area, this measure can change light equally and reach effect same as described above at the amount of light of exiting surface.
In the present embodiment, each optical touch element 200 all comprises two light sources 220.But the present invention is not as limit, and in the embodiment that other do not illustrate, each optical touch element can not comprise light source, also can comprise a plurality of light sources, and the deviser can the quantity to light source be changed according to the touch-control demand of optical touch display.
Particularly, light-guide device 300 can carry out different designs according to the profile of display element 100.For instance, in the display element 100 of present embodiment, its tetragonal display surface S1 has a pair of long side L1 respect to one another and a pair of short side L2 respect to one another, each long side L1 adjacent to this between the short side L2, and each short side L2 adjacent to this between the long side L1, therefore the light-guide device 300 of present embodiment comprises first parts 310 and second parts 320 that are configured in short side L2 place that are configured in long side L1 place, and wherein the length of first parts 310 is greater than the length of second parts 320.
On the other hand, optical touch element 200 also comprises a cable 230 that is connected between light source 220 and the sense process module 210, so that light source 220 has identical power source with sense process module 210, also allow optical touch element 200 control simultaneously by this light source 220 and sense process module 210 can be each other startup or close and reach the effect of touch-control with arranging in pairs or groups.Present embodiment does not limit the quantity of light source 220, that is the deviser can be configured in position on the display surface S1 and quantity according to the external form of light-guide device 300 and changed with it.For example, refer again to Fig. 1 and since the length of first parts 310 than the length of second parts 320 for long, therefore in the present embodiment, just can respectively dispose a light source 220 respectively at the incidence surface F1 of the both sides of first parts 310, use and keep its light emitting efficiency.On the contrary, the length of second parts 320 is shorter, and therefore only needing therein, the incidence surface F1 configuration light source 220 of a side can make the light emitting efficiency of second parts 320 identical with the light emitting efficiency of first parts 310.Thus, present embodiment just can be revised light source 220 with respect to the distance between the sense process module 210 by the length of adjusting cable 230, and makes accordingly that bright degree can be even among the sensing space P1.At this, the deviser can profile, length and the configured light sources to light-guide device 300 give suitable change according to the actual design demand.
Refer again to Fig. 1 and Fig. 3, in the present embodiment, each sense process module 210 comprises a circuit board 212 and the sensor 214 and the signal processor 216 that are encapsulated on the circuit board 212 and are electrically connected to each other.Sensor 214 changes in order to the light of sensing sensing space P1 and produces a sensing signal, and signal processor 216 judges that after receiving sensing signal touch object 20 is with respect to the position of display surface S1 and produce first signal.When at least one touch object 20 (only illustrates a touch object in graphic, but not as limit) when entering sensing space P1, each sense process module 210 senses light that touch object 20 caused and changes and produce one first signal in sensing space P1, and first signal that each sense process module 210 is produced is collected to these sense process modules 210 one of them, and converts a secondary signal to after spread out of optical touch element 200 by transmission interface 400.
In the present embodiment, can by System on Chip/SoC (system on chip, SoC) technology is integrated in sensor 214 and signal processor 216 in the one chip that is encapsulated on the circuit board 212, wherein the sensing face of sensor 214 is towards sensing space P1.In addition, in the embodiment that another does not illustrate of the present invention, sensor 214 and signal processor 216 also can be encapsulated in the one chip encapsulation that (system in package SiP) or on the single crystal grain, uses the speed that improves signal Processing.At this, the present invention is not limited to the above-mentioned sensor 214 and the composition mode of signal processor 216.
In addition, in the embodiment that the present invention does not illustrate, circuit board is a flexible circuit board, by its bent characteristic, and sensor, signal processor and light source all can be encapsulated on the flexible circuit board, and reach the effect same with the foregoing description simultaneously.
In the present embodiment, each optical touch element 200 is that (Serial Peripheral Interface, SPI) circuit 240 and being connected to each other are used the sequence data of these optical touch elements 200 synchronously by a serial perimeter interface.When at least one touch object 20 entered sensing space P1, sensor 214 can sense the light that touch object 20 is reflected, and this touch object 20 imaging on sensor 214 is a bright spot or a dim spot.Sensor 214 just can produce sensing signal and be sent to signal processor 216 at this moment, and the light luminance that signal processor 216 just can be sensed according to the sensor 214 of correspondence changes the position of judging touch object 20, to produce one dimension coordinate signal.At this, one dimension coordinate signal for example is to represent light that touch object 20 is reflected to be incident to the incident angle of sensor 214.
Thus, these one dimension coordinate signals that these three optical touch elements 200 produce separately just are collected in the signal processor 216 of one sense process module 210 wherein via serial circumference interface circuit 240, and judge the position of touch object 20 with respect to display surface S1 via being stored in the program compiler in this sense process module 210 from these one dimension coordinate signals.For instance, the program compiler in the sense process module 210 can calculate the position of touch object 20 with respect to display surface S1 according to two incident angles that light is incident to sensor 214, uses producing two-dimentional coordinate signal.Afterwards, two-dimentional coordinate signal is sent to an operating platform 30 via transmission interface 400 (is USB (universal serial bus) at present embodiment) again.Thus, operating platform 30 just can be judged the position of touch object 20 picture shown with respect to display surface S1, and then realizes touch controllable function.
Do not limit one dimension coordinate signal at this and need be collected to specific optical touch element 200.In the present embodiment, three optical touch elements 200 can be defined main (master), from the relativeness of (slave), wherein can be by a storage unit (not illustrating) being integrated into one of them of optical touch element 200, or distinguish identification defining a main touch control component (other then for from touch control component), and then optical touch element 200 as main touch control unit is had concurrently simultaneously produce one dimension coordinate signal and the function that one dimension coordinate conversion of signals is become two-dimentional coordinate signal from the firmware of sense process module 210.But the present invention is not as limit.
In the present embodiment, operating platform 30 for example is a main frame.Yet, in other embodiments, operating platform can also be a mobile phone, personal digital assistant (personal digital assistant, PDA), digital camera or other suitable electronic installations.
In addition, among another embodiment that does not illustrate, sensor for example is complementary metal oxide semiconductor (CMOS) (CMOS) in the present invention, behind its image in order to the seizure touch object, produces signal and is sent to operating platform via transmission interface.This measure can reach the effect same with the foregoing description equally.
In view of the above, optical touch display 10 just can be accomplished to the purpose that two-dimentional coordinate signal is sent to operating platform 30 by transmission interface 140, with the signal converting controller that need additionally set up in the minimizing prior art, and then improves its touch-control usefulness.
In sum, in the above embodiment of the present invention, the optical touch display is by the light-guide device that is configured in the display surface periphery, so that the light that light source produced has preferable bright dipping quality in sensing space.Moreover the one dimension coordinate signal that each sense process module is produced is collected to the sense process module of one of them earlier and carries out the coordinate conversion, spreads out of the optical touch element afterwards by USB (universal serial bus).This measure avoids setting up extra electronic component with the saving transmission time, and makes the optical touch display have higher touch-control efficient.
Though the present invention discloses as above with embodiment; right its is not in order to limit the present invention; those skilled in the art can do some changes and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (22)
1. optical touch display comprises:
One display element has a display surface and the sensing space of position before this display surface;
At least three light-guide devices are configured in the periphery of this display surface, and respectively this light-guide device has two incidence surfaces respect to one another and is connected a exiting surface between this incidence surface;
At least two optical touch elements, it is other and be electrically connected to each other to be configured in this display surface, and respectively this optical touch element comprises:
One sense process module;
At least one light source is configured in by this corresponding incidence surface, and this light source emits beam and is sent to this sensing space via this incidence surface and this exiting surface; And
One transmission interface, electrically connect this sense process module, when at least one touch object enters this sensing space, respectively the light that caused in this sensing space to this touch object of this sense process module senses changes and produces one first signal, and this first signal is collected to this sense process module one of them, and converts a secondary signal to after spread out of this optical touch element by this transmission interface.
2. optical touch display as claimed in claim 1, wherein this display surface has a pair of long side respect to one another and a pair of short side respect to one another, respectively this long side adjacent to this between the short side, and respectively should short side adjacent to this between the long side, and this light-guide device be configured in respectively this to long side at least one of them with this to lack side at least one of them.
3. optical touch display as claimed in claim 2, wherein this transmission interface is a USB (universal serial bus).
4. optical touch display as claimed in claim 1, wherein this sense process module comprises:
One circuit board;
One sensor is encapsulated on this circuit board, and this sensor changes in order to the light of this sensing space of sensing and produces a sensing signal; And
One signal processor, be encapsulated on this circuit board and electrically connect this sensor, this signal processor receives this sensing signal and judges that this touch object is with respect to the position of this display surface and produce this first signal, when this first signal was collected to this signal processor of this sense process module wherein, this signal processor became this secondary signal with this first conversion of signals.
5. optical touch display as claimed in claim 4, wherein respectively this optical touch element also comprises:
At least one cable is connected between this light source and this circuit board.
6. optical touch display as claimed in claim 4, wherein this circuit board is a flexible circuit board, this light source is encapsulated on this flexible circuit board.
7. optical touch display as claimed in claim 1, wherein this first signal is an one dimension coordinate signal, and this secondary signal is a two-dimentional coordinate signal.
8. optical touch display as claimed in claim 7, the coordinate values of this one dimension coordinate signal that wherein respectively this sense process module produced along with this touch object with respect to the relative position of this sense process module respectively and different.
9. optical touch display comprises:
One display element has a quadrilateral display surface, and this quadrilateral display surface has four sides and four corners;
At least three sense process modules are configured in this different corners respectively and are electrically connected to each other;
Four light-guide devices are disposed at these four sides respectively to define a sensing space, and respectively this light-guide device has two incidence surfaces respect to one another and is connected a exiting surface between this incidence surface, and this exiting surface is towards this sensing space;
A plurality of light sources are configured in by this incidence surface of part, and respectively this light source emits beam respectively and is sent to this sensing space via this incidence surface and this exiting surface; And
One USB (universal serial bus), electrically connect this sense process module, when at least one touch object enters this sensing space, respectively the light that caused in this sensing space to this touch object of this sense process module senses changes and produces one first signal, and this first signal is collected to this sense process module one of them, and converts a secondary signal to after spread out of this sense process module by this USB (universal serial bus).
10. optical touch display as claimed in claim 9, wherein these at least three sense process modules comprise four sense process modules, lay respectively at these four corners of this display surface.
11. optical touch display as claimed in claim 9, wherein respectively this sense process module comprises:
One circuit board;
One sensor is encapsulated on this circuit board, and this sensor changes in order to the light of this sensing space of sensing and produces a sensing signal; And
One signal processor, be encapsulated on this circuit board and electrically connect this sensor, this signal processor receives this sensing signal and judges that this touch object is with respect to the position of this display surface and produce this first signal, when this first signal was collected to this signal processor of this sense process module wherein, this signal processor became this secondary signal with this first conversion of signals.
12. optical touch display as claimed in claim 11, wherein respectively this sense process module also comprises:
At least one cable is connected between this light source and this circuit board.
13. optical touch display as claimed in claim 11, wherein this circuit board is a flexible circuit board, and this light source is encapsulated on this flexible circuit board.
14. optical touch display as claimed in claim 9, wherein this first signal is an one dimension coordinate signal, and this secondary signal is a two-dimentional coordinate signal.
15. optical touch display as claimed in claim 14, the coordinate values of this one dimension coordinate signal that wherein respectively this sense process module produced along with this touch object with respect to the relative position of this sense process module respectively and different.
16. an optical touch display comprises:
One display element has a display surface and the sensing space of position before this display surface;
At least three light-guide devices, be configured in the periphery of this sensing space, respectively this light-guide device has two relative ends, and wherein respectively this light-guide device has the incidence surface of position at this at least one end, and respectively this light-guide device has an exiting surface position between this two end and towards this sensing space;
At least two sensing elements electrically connect mutually, and are configured in adjacent two corners of this display surface respectively;
At least two light sources, respectively this light source is configured in by this incidence surface of at least one this light-guide device, and respectively this light source emits beam and is sent to this sensing space via this incidence surface and this exiting surface; And
One transmission interface electrically connects this sensing element;
Wherein, after respectively this sensing element captures the image of at least one touch object in this sensing space, produce a signal and be sent to an operating platform via this transmission interface.
17. optical touch display as claimed in claim 16 also comprises a reflecting element, is coated on the outside of this light-guide device and exposes this exiting surface.
18. optical touch display as claimed in claim 16, wherein respectively this light-guide device has a microstructure in order to the light that changes this light source amount of light at this exiting surface.
19. optical touch display as claimed in claim 16 also comprises:
One serial perimeter interface circuit is connected between this sensing element.
20. optical touch display as claimed in claim 16 also comprises:
At least one Signal Processing Element electrically connects this sensing element, and respectively the image of this sensing element this object of catching is sent to this Signal Processing Element to produce this signal.
21. optical touch display as claimed in claim 20 also comprises:
At least one circuit board electrically connects this light source, and wherein this sensing element and this Signal Processing Element all are encapsulated on this circuit board.
22. optical touch display as claimed in claim 16, wherein this transmission interface is a USB (universal serial bus).
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| CN 201010511912 CN101976156A (en) | 2010-10-14 | 2010-10-14 | Optical touch display |
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| CN 201010511912 CN101976156A (en) | 2010-10-14 | 2010-10-14 | Optical touch display |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736792A (en) * | 2011-04-01 | 2012-10-17 | 玉晶光电股份有限公司 | Optical profile type touch control system |
| CN102902416A (en) * | 2011-07-26 | 2013-01-30 | 原相科技股份有限公司 | Optical touch device and optical sensor thereof |
| CN103970366A (en) * | 2013-02-05 | 2014-08-06 | 广达电脑股份有限公司 | Optical multi-point touch device and optical touch module thereof |
| CN103984446A (en) * | 2014-04-04 | 2014-08-13 | 深圳市艾拓奇光学科技有限公司 | Optical touch screen manufacturing method |
| TWI512574B (en) * | 2011-07-18 | 2015-12-11 | Pixart Imaging Inc | Optical touch apparatus and light sensor thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582001A (en) * | 2009-07-07 | 2009-11-18 | 松翰科技股份有限公司 | Touch control screen, touch control module and control method |
| CN201497973U (en) * | 2009-07-24 | 2010-06-02 | 敦南科技股份有限公司 | Optical touch control module with high signal-to-noise ratio and device thereof |
| CN101776816A (en) * | 2010-03-04 | 2010-07-14 | 友达光电股份有限公司 | Optical touch display panel |
| US20100214268A1 (en) * | 2009-02-23 | 2010-08-26 | Ming-Wei Huang | Optical touch liquid crystal display device |
| CN101840289A (en) * | 2010-04-16 | 2010-09-22 | 友达光电股份有限公司 | Touch control module and sensing device |
-
2010
- 2010-10-14 CN CN 201010511912 patent/CN101976156A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100214268A1 (en) * | 2009-02-23 | 2010-08-26 | Ming-Wei Huang | Optical touch liquid crystal display device |
| CN101582001A (en) * | 2009-07-07 | 2009-11-18 | 松翰科技股份有限公司 | Touch control screen, touch control module and control method |
| CN201497973U (en) * | 2009-07-24 | 2010-06-02 | 敦南科技股份有限公司 | Optical touch control module with high signal-to-noise ratio and device thereof |
| CN101776816A (en) * | 2010-03-04 | 2010-07-14 | 友达光电股份有限公司 | Optical touch display panel |
| CN101840289A (en) * | 2010-04-16 | 2010-09-22 | 友达光电股份有限公司 | Touch control module and sensing device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102736792A (en) * | 2011-04-01 | 2012-10-17 | 玉晶光电股份有限公司 | Optical profile type touch control system |
| TWI512574B (en) * | 2011-07-18 | 2015-12-11 | Pixart Imaging Inc | Optical touch apparatus and light sensor thereof |
| US9218091B2 (en) | 2011-07-18 | 2015-12-22 | Pixart Imaging Inc. | Optical touch panel assembly and light sensor thereof |
| CN102902416A (en) * | 2011-07-26 | 2013-01-30 | 原相科技股份有限公司 | Optical touch device and optical sensor thereof |
| CN103970366A (en) * | 2013-02-05 | 2014-08-06 | 广达电脑股份有限公司 | Optical multi-point touch device and optical touch module thereof |
| US9417735B2 (en) | 2013-02-05 | 2016-08-16 | Quanta Computer Inc. | Optical touch module having single-row serial connection structure and optical multi-touch device having the same |
| CN103970366B (en) * | 2013-02-05 | 2017-03-01 | 广达电脑股份有限公司 | Optical multi-point touch device and optical touch module thereof |
| CN103984446A (en) * | 2014-04-04 | 2014-08-13 | 深圳市艾拓奇光学科技有限公司 | Optical touch screen manufacturing method |
| CN103984446B (en) * | 2014-04-04 | 2018-06-12 | 深圳市艾拓奇光学科技有限公司 | A kind of optical touch screen production method |
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Application publication date: 20110216 |