CN202003339U - Interactive display screen and interactive projection screen - Google Patents
Interactive display screen and interactive projection screen Download PDFInfo
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- CN202003339U CN202003339U CN2009202793657U CN200920279365U CN202003339U CN 202003339 U CN202003339 U CN 202003339U CN 2009202793657 U CN2009202793657 U CN 2009202793657U CN 200920279365 U CN200920279365 U CN 200920279365U CN 202003339 U CN202003339 U CN 202003339U
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Abstract
The utility model discloses an interactive display screen, which comprises a printed circuit board, a first luminescence unit and a control unit. The first luminescence unit is used for providing display images. The control unit which is formed on the printed circuit board is coupled to the first luminescence unit for controlling the first luminescence unit. The interactive display screen further comprises a second luminescence unit, an optical sensing unit and a processing unit. The second luminescence unit is used for providing detection rays. The optical sensing unit is used for receiving optical parameter changes belonging to the detection rays and triggered by a touch and acquiring touch data. The processing unit is coupled to the optical sensing unit for determining a touch position by the touch data and then sending the touch position to the control unit. The utility model further discloses an interactive projection screen. Both the interactive display screen and the interactive projection screen can fill the gap in the application field of the touch screen technology.
Description
Technical field
The utility model relates to a kind of interactive demonstration field, relates in particular to a kind of interactive display screen and interactive projection screen.
Background technology
Current, display screen has been widely used in all trades and professions, and in order further to improve the practicality of display screen, people increase touch-screen usually to realize human-computer interaction function on display screen.At present, comprise that video game system, computing machine and the new technologies and methods such as equipment that comprise electronic music all used touch screen technology.But, still have in the minority display technique field (as electronic label field and optical projection field) not relate to touch screen technology as yet, need plug a gap.
The utility model content
The purpose of this utility model is to provide a kind of interactive display screen and interactive projection screen, to fill up the blank of touch screen technology on application.
A kind of interactive display screen that the utility model provides, described interactive display screen comprises printed-wiring board (PWB), first luminescence unit and control module, described first luminescence unit is in order to provide display image, described control module is formed on the described printed-wiring board (PWB) and is coupled to described first luminescence unit to control described first luminescence unit, described interactive display screen also comprises second luminescence unit, optical sensing unit and processing unit, and described second luminescence unit is used to provide detection light; Described optical sensing unit is used to receive by the optical parametric variation that touches the described detection light that causes to obtain touch data; Described processing unit is coupled to described optical sensing unit, determines touch location to utilize described touch data, and described touch location is sent to described control module.
Alternatively, described first luminescence unit comprises at least two first light-emitting devices, each described first light-emitting device is to be determined to arrange, described second luminescence unit comprises at least two second light-emitting devices, described optical sensing unit comprises at least two optical sensors, and each described second light-emitting device and described optical sensor are all corresponding to the other side's interval and the interval between each described first light-emitting device.
Alternatively, described first luminescence unit is formed on the described printed-wiring board (PWB).
Alternatively, described second luminescence unit and described optical sensing unit be formed at jointly or respectively described printed-wiring board (PWB) above or below.
Alternatively, described optical sensing unit is grid and distributes.
Alternatively, described second luminescence unit and/or described optical sensing unit are formed on described printed-wiring board (PWB) or the assisting base plate, perhaps, described second luminescence unit and described optical sensing unit are formed at respectively on described assisting base plate and the described printed-wiring board (PWB), described assisting base plate be formed at described printed-wiring board (PWB) above or below; Perhaps, described second luminescence unit is formed at respectively on the different described assisting base plates with described optical sensing unit, described assisting base plate be formed at described printed-wiring board (PWB) above or below.
Alternatively, the described optical sensing unit that is formed on described printed-wiring board (PWB) or the described assisting base plate is matrix distribution.
Alternatively, when described second luminescence unit and/or described optical sensing unit are positioned at the below of described printed-wiring board (PWB), be formed with hole on the described printed-wiring board (PWB), corresponding described second luminescence unit of described hole and/or described optical sensing unit.
Alternatively, described interactive display screen also comprises the touch substrate, described touch substrate places the top of described first luminescence unit, described second luminescence unit is positioned at the side of described touch substrate, the light that described second luminescence unit sends is propagated with the frustrated total internal reflection form in described touch substrate, described optical sensing unit be formed at described printed-wiring board (PWB) above or below.
Alternatively, described optical sensing unit is grid and distributes.
Alternatively, described interactive display screen also comprises the touch substrate, described touch substrate places the top of described first luminescence unit, described second luminescence unit is positioned at the side of described touch substrate, the light that described second luminescence unit sends is propagated with the frustrated total internal reflection form in described touch substrate, described optical sensing unit is formed on described printed-wiring board (PWB) or the assisting base plate, described assisting base plate be formed at described printed-wiring board (PWB) above or below.
Alternatively, described optical sensing unit is matrix distribution.
Alternatively, when described optical sensing unit is positioned at the below of described printed-wiring board (PWB), be formed with hole on the described printed-wiring board (PWB), the corresponding described optical sensing of described hole unit.
Alternatively, described optical sensor is a kind of or its combination in photoresistance, photodiode, phototriode, photoelectrical coupler or the photoelectric cell.
Alternatively, described optical sensor is the optical sensor of optical transparency.
Alternatively, the light that described second luminescence unit is sent is infrared light, and described optical sensor is the infrared optics sensor.
A kind of interactive projection screen that the utility model provides, described interactive projection screen comprises curtain, described curtain comprises first and second, described second with described first oppositely, described first in order to show that by the projector equipment image projected, described second also is attached with second luminescence unit and optical sensing unit; Described second luminescence unit is used to provide detection light; Described optical sensing unit is used to receive by the optical parametric variation that touches the described detection light that causes to obtain touch data; Described curtain also comprises processing unit, and described processing unit is coupled to described optical sensing unit, determines touch location to utilize described touch data.
Alternatively, described second luminescence unit comprises at least two light-emitting devices, and described optical sensing unit comprises at least two optical sensors, the interval between corresponding each the described light-emitting device of each described optical sensor.
Alternatively, described optical sensing unit is grid and distributes.
Alternatively, described second luminescence unit and described optical sensing unit are formed on the identical or different described matrix, and described matrix is attached to described second.
Alternatively, the described optical sensing unit that is formed on the described matrix is matrix distribution.
Alternatively, described matrix is a flexible material.
Alternatively, described optical sensor is a kind of or its combination in photoresistance, photodiode, phototriode, photoelectrical coupler or the photoelectric cell.
Alternatively, described optical sensor is the optical sensor of optical transparency.
Alternatively, the light that described second luminescence unit is sent is infrared light, and described optical sensor is the infrared optics sensor.
Compared with prior art, the interactive display screen and the interactive projection screen that provide of the utility model has following advantage:
A kind of interactive display screen that the utility model provides by increase by second luminescence unit, optical sensing unit and processing unit in display screen, utilizes described second luminescence unit that detection light is provided; Utilize described optical sensing unit to receive by the variation that touches the described detection light that causes to obtain touch data; Utilize described touch data to determine touch location, can make the display screen that comprises first luminescence unit or curtain realize mutual the demonstration;
A kind of interactive display screen that the utility model provides by the position relation between second luminescence unit, optical sensing unit and the processing unit of flexible adjustment increase, can be adjusted the structure of described interactive display screen flexibly;
A kind of interactive projection screen that the utility model provides by increase by second luminescence unit, optical sensing unit and processing unit in projection screen, utilizes described second luminescence unit that detection light is provided; Utilize described optical sensing unit to receive by the variation that touches the described detection light that causes to obtain touch data; Utilize described touch data to determine touch location, can make described projection screen realize mutual the demonstration;
A kind of interactive projection screen that the utility model provides by second luminescence unit and the relation of the position between the optical sensing unit that flexible adjustment increases, can be adjusted the structure of described interactive projection screen flexibly.
Description of drawings
Fig. 1 is the structure vertical view of the utility model interactive display screen first embodiment;
Fig. 2 is the structure cut-open view of the utility model interactive display screen first embodiment;
Fig. 3 to Fig. 4 is for comprising the structural drawing of luminescence chip in the related embodiment of the utility model interactive display screen first embodiment;
Fig. 5 to Fig. 6 is the structure cut-open view of luminescence chip in the related embodiment of the utility model interactive display screen first embodiment;
Fig. 7 to Figure 16 is the structure cut-open view of the related embodiment of the utility model interactive display screen first embodiment;
Figure 17 is the structure cut-open view of the utility model interactive display screen second embodiment;
Figure 18 is the structure vertical view of the utility model interactive display screen second embodiment;
Figure 19 to Figure 32 is the structure cut-open view of the related embodiment of the utility model interactive display screen second embodiment;
Figure 33 is the fundamental diagram of the utility model interactive display screen embodiment;
Figure 34 is the structure cut-open view of the utility model interactive display screen the 3rd embodiment;
Figure 35 to Figure 38 is the structure cut-open view of the related embodiment of the utility model interactive display screen the 3rd embodiment;
Figure 39 to Figure 42 and Figure 44 to Figure 48 are the structure cut-open view of the utility model interactive projection screen embodiment;
Figure 43 is the fundamental diagram of the utility model interactive projection screen embodiment.
Embodiment
The utility model will be further described below in conjunction with specification drawings and specific embodiments.
In conjunction with illustrated in figures 1 and 2, in the utility model first embodiment, interactive display screen comprises printed-wiring board (PWB) 100, (emission shows light at least two the one LED120, as visible light) and control module 102, each described LED120 is in order to provide display image and to be formed on the described printed-wiring board (PWB) 100, described control module 102 is formed on the described printed-wiring board (PWB) 100 (in other embodiments, described control module 102 can otherwise be formed in the described interactive display screen) and be coupled to each described LED120 to control the demonstration of each described LED120, described interactive display screen comprises that also (emission detects light at least two the 2nd LED, described detection light both can be non-visible lights such as infrared light, also can be visible light, among each embodiment of present specification, with described detection light is that non-visible light is that example describes) 142, at least two optical sensors 144 and processing unit 146, each described the 2nd LED142 and each described optical sensor 144 are formed on the described printed-wiring board (PWB) 100 and the interval between all corresponding each described LED120, and each described the 2nd LED142 is used to provide detection light; Each described optical sensor 144 is used for receiving by the optical parametric variation that touches the described detection light that causes to obtain touch data (described optical parametric can be luminous flux, brightness, luminous intensity, spatial light intensity distribution, relative spectral power distributes or a kind of or its combination of colourity); Described processing unit 146 couples (as by line 104) optical sensor 144 as described in each, determines touch location to utilize described touch data, and described touch location is sent to described control module 102.
Wherein, each described LED120 is definite and arranges, and described definite arrangement is the intrinsic arrangement of a LED120 described in the existing display screen, as is the various field distribution or is matrix distribution.Described printed-wiring board (PWB) 100 can have different structure (as described in be formed with various holes in the printed-wiring board (PWB) 100), particularly, can customize according to actual needs.In the utility model first embodiment, there is not hole in the described printed-wiring board (PWB) 100, each described LED120 is formed on the described printed-wiring board (PWB) 100; In other embodiments relevant with the utility model first embodiment, when on described printed-wiring board (PWB) 100, being formed with hole, it is interior (for convenience of explanation that each described LED120 can be formed at described hole, all being formed on the described printed-wiring board (PWB) 100 with each described LED120 in the subsequent embodiment is that prerequisite is described, but not as limiting).In addition, be accurate senses touch position, each described the 2nd LED142 and each described optical sensor 144 of being formed on the described printed-wiring board (PWB) 100 can be arranged.In addition, also can have only each described optical sensor 144 to be arranged, and each described the 2nd LED142 is other arrangements, the 2nd LED142 has the continuous structure that is rule and changes (as the uniform bar shaped of width, band shape as described, or even the rhombus or the rectangle that only link to each other with a corner) time, each described the 2nd LED142 can be arranged in parallel.
Each described the 2nd LED142 and each described optical sensor 144 are beneficial to each described optical sensor 144 and receive the detection light that each described the 2nd LED142 sends also corresponding to the other side's interval.
In other embodiments relevant with the utility model first embodiment, also can utilize other first light-emitting devices and second light-emitting device to provide in the described interactive display screen and show light and detect light (in the utility model, as example, described detection light is selected infrared ray for use, be non-visible light, but also can select other non-visible lights or even visible light in the practice for use as detecting light), described first light-emitting device and second light-emitting device all can be Organic Light Emitting Diode (OLED) or cold-cathode fluorescence lamp (CCFL).
Described processing unit is known the touch data of the position of the described optical sensor 144 that comprises touch sensitive by means of comprising within it a kind of algorithm, and the software of controlling described algorithm can be by different programmers with various forms and programming language establishment.
To shown in Figure 6, in other embodiments relevant with the utility model first embodiment, each described LED120 can be provided by integrated luminescence chip 122 in conjunction with Fig. 3.At this moment, both can only comprise at least one described LED120 in the described luminescence chip 122, and each described the 2nd LED142 and the optical sensor 144 that comprises in the described interactive display screen placed outside the described luminescence chip 122 as Fig. 3 and shown in Figure 5; Also can be as Fig. 4 and shown in Figure 6, both comprised at least one described LED120 in the described luminescence chip 122, also comprise described the 2nd LED142 and optical sensor 144, at this moment, than Fig. 3 and embodiment shown in Figure 5, only need to get final product with the described LED120 that described the 2nd LED142 and optical sensor 144 are replaced in the described luminescence chip 122, and implement the number of described the 2nd LED142, optical sensor 144 and a described LED120 of described replacement can be unequal; As example, as Fig. 4 and shown in Figure 6, when described luminescence chip 122 comprises 36 described LED120, after wherein 2 described LED120 are replaced into described the 2nd LED142 and optical sensor 144 respectively, can constitute embodiment as shown in Figure 4, certainly, after finishing described displacement, also can outside described luminescence chip 122, put each described the 2nd LED142 and optical sensor 144 again, can design according to actual needs, repeat no more.The formation of described luminescence chip 122 can customize according to actual needs.In like manner, each described the 2nd LED142 and each described optical sensor 144 also can customize according to actual needs makes luminescence chip, repeats no more.
In the utility model first embodiment, each described the 2nd LED142 and each described optical sensor 144 all are formed on the described printed-wiring board (PWB) 100 (promptly, have joint between each described the 2nd LED142 and each described optical sensor 144 and the described printed-wiring board (PWB) 100, described joint comprises that each described the 2nd LED142 and/or each described optical sensor 144 embed among the hole of described printed-wiring board (PWB) 100); But in other embodiments relevant with the utility model first embodiment, the relative position that each described the 2nd LED142 and each described optical sensor 144 and described printed-wiring board (PWB) are 100 also can have multiple design.
As example, as shown in Figure 7, the top that each described the 2nd LED142 and each described optical sensor 144 all are formed at described printed-wiring board (PWB) 100 (promptly, there is not joint between each described the 2nd LED142 and each described optical sensor 144 and the described printed-wiring board (PWB) 100), and each described the 2nd LED142 and each described optical sensor 144 are arranged in grid respectively, and each described the 2nd LED142 and each described optical sensor 144 of being grid arrangement constitute the net that an edge is connected to the shell 110 of described display screen respectively; The concrete number of each described the 2nd LED142 and each described optical sensor 144 and the order number of described grid and trend all can be determined according to actual needs.At this moment, interval between both all corresponding each the described LED120 of each described the 2nd LED142 and each described optical sensor 144, also, receive the detection light that sends by described the 2nd LED142 to maximally utilise described optical sensor 144 in correspondence with each other in the other side's interval.It should be noted that, position relation between the grid that the grid that is formed by described the 2nd LED142 and each described optical sensor 144 form can be adjusted flexibly, both can be as shown in Figure 7, the grid that is formed by described the 2nd LED142 is positioned at the top of the grid that is formed by each described optical sensor 144, also can be as shown in Figure 8, the grid that is formed by described optical sensor 144 is positioned at the top of the grid that is formed by each described the 2nd LED142.
In like manner, as Fig. 9 and shown in Figure 10, a kind of being formed on the described printed-wiring board (PWB) 100 in each described the 2nd LED142 and each described optical sensor 144, another kind of then be formed at the top of described printed-wiring board (PWB) 100.Each described the 2nd LED142 or each the described optical sensor 144 that are formed at described printed-wiring board (PWB) 100 tops constitute the net that an edge is connected to the shell 110 of described display screen.Be accurate senses touch position, each described the 2nd LED142 or each the described optical sensor 144 that are formed on the described printed-wiring board (PWB) 100 can be arranged.
In addition, extremely shown in Figure 16 as Figure 11, also can comprise assisting base plate 160 in the described interactive display screen, make that when each described the 2nd LED142 and/or each described optical sensor 144 were formed at the top of described printed-wiring board (PWB) 100, each described the 2nd LED142 and/or each described optical sensor 144 can be formed on the described assisting base plate 160.Be accurate senses touch position, each described the 2nd LED142 and/or each the described optical sensor 144 that are formed on the described assisting base plate 160 can be arranged.Described assisting base plate 160 can select for use acrylic material, glass, plastics or other light to be had the material of good transmission performance (having good transmission performance at least in the luminous wave band of described second light-emitting device).
Particularly, as shown in figure 11, each described the 2nd LED142 and each described optical sensor 144 can be formed on the same assisting base plate 160.As shown in figure 12, each described the 2nd LED142 can be formed on the different assisting base plate 160 with each described optical sensor 144.As Figure 13 and shown in Figure 14, a kind of being formed on the described printed-wiring board (PWB) 100 in each described the 2nd LED142 and each described optical sensor 144, another kind then is formed on the described assisting base plate 160.As Figure 15 and shown in Figure 16, a kind of in each described the 2nd LED142 and each described optical sensor 144 is formed at the top of described printed-wiring board (PWB) 100 with grid configuration, and another kind then is formed on the described assisting base plate 160.In this serial embodiment, interval between all both corresponding each the described LED120 of each described the 2nd LED142 and each described optical sensor 144, also (subsequent embodiment is identical with it in the other side's interval in correspondence with each other, repeat no more), receive the detection light that sends by described the 2nd LED142 to maximally utilise described optical sensor 144.
As Figure 17 and shown in Figure 180, in the utility model second embodiment, each described the 2nd LED142 is formed on the described printed-wiring board (PWB) 100, each 144 below that are formed at described printed-wiring board (PWB) 100 of described optical sensor.At this moment, need be formed with hole (or slit on the described printed-wiring board (PWB) 100, follow-up same, repeat no more) 106, and described hole 106 correspondences are formed at each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to described optical sensor 144 and receive the detection light that is sent by described the 2nd LED142.At this moment, be formed at the described optical sensor 144 of each of described printed-wiring board (PWB) 100 belows and constitute the net that an edge is connected to the shell 110 of described display screen.
In like manner, as shown in figure 19, in the related embodiment of the utility model second embodiment, each described optical sensor 144 is formed on the described printed-wiring board (PWB) 100, and each described the 2nd LED142 then is formed at the below of described printed-wiring board (PWB) 100.At this moment, need be formed with hole 106 on the described printed-wiring board (PWB) 100, and described hole 106 correspondences are formed at each described the 2nd LED142 of described printed-wiring board (PWB) 100 belows, be beneficial to described the 2nd LED142 and send detection light, each described the 2nd LED142 constitutes the net that an edge is connected to the shell 110 of described display screen.
In addition, as shown in figure 20, each described the 2nd LED142 and each described optical sensor 144 all can be formed at the below of described printed-wiring board (PWB) 100.At this moment, need be formed with hole 106 on the described printed-wiring board (PWB) 100, and described hole 106 correspondences are formed at each described the 2nd LED142 and each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, being beneficial to the detection light that described the 2nd LED142 sends can be received by each described optical sensor 144, each described the 2nd LED142 and each described optical sensor 144 all constitute the net that an edge is connected to the shell 110 of described display screen, and the relation of the position between the net that the net that is formed by described the 2nd LED142 and each described optical sensor 144 form can be adjusted flexibly, both can make the net that forms by described the 2nd LED142 be positioned at the top of the net that forms by each described optical sensor 144, and also can make the net that forms by described optical sensor 144 be positioned at the top of the net that forms by each described the 2nd LED142.
To shown in Figure 26, what need emphasize is that each described the 2nd LED142 and/or each the described optical sensor 144 that are formed at described printed-wiring board (PWB) 100 belows all can be formed on the assisting base plate 160 as Figure 21.
Particularly, as Figure 21 and shown in Figure 22, a kind of being formed on the described printed-wiring board (PWB) 100 in each described the 2nd LED142 and each described optical sensor 144, another kind of then be formed on the described assisting base plate 160 that is positioned at described printed-wiring board (PWB) 100 belows.At this moment, need be formed with hole 106 on the described printed-wiring board (PWB) 100, and described hole 106 correspondences are formed at each described the 2nd LED142 or each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to described the 2nd LED142 and send detection light or utilize each described optical sensor 144 to receive described detection light.
In addition, as shown in figure 23, each described the 2nd LED142 and each described optical sensor 144 all can be formed on the same described assisting base plate 160 that is positioned at described printed-wiring board (PWB) 100 belows, at this moment, described hole 106 correspondences are formed at each described the 2nd LED142 of described printed-wiring board (PWB) 100 belows and each described optical sensor 144, are beneficial to the detection light that described the 2nd LED142 sends and are received by each described optical sensor 144.Especially, as shown in figure 24, each described the 2nd LED142 can be formed on the different described assisting base plate 160 that is positioned at described printed-wiring board (PWB) 100 belows with each described optical sensor 144, and the position relation of carrying the described assisting base plate 160 of described the 2nd LED142 and carrying between the described assisting base plate 160 of each described optical sensor 144 can be adjusted flexibly, the described assisting base plate 160 of described the 2nd LED142 of carrying was positioned on the described assisting base plate 160 of each described optical sensor 144 of carrying, the described assisting base plate 160 of the described optical sensor 144 of carrying is positioned on the described assisting base plate 160 of each described the 2nd LED142 of carrying.As Figure 25 and shown in Figure 26, each described the 2nd LED142 and each described optical sensor 144 all are formed at the below of described printed-wiring board (PWB) 100, but have only a kind of being formed on the described assisting base plate 160 wherein, another kind of then constitute the grid that an edge is connected to the shell 110 of described display screen.
Especially, to shown in Figure 32, each described the 2nd LED142 and each described optical sensor 144 can be formed at the above and below of described printed-wiring board (PWB) 100 respectively as Figure 27.At this moment, need be formed with hole 106 on the described printed-wiring board (PWB) 100, and described hole 106 correspondences are formed at each described the 2nd LED142 or each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to described the 2nd LED142 and send detection light or the described detection light of each described optical sensor 144 reception.Wherein, each described the 2nd LED142 and/or each described optical sensor 144 all both can constitute the grid that an edge is connected to the shell 110 of described display screen, can be formed at again on the described assisting base plate 160.
Particularly, as shown in figure 27, each described the 2nd LED142 is formed at the below of described printed-wiring board (PWB) 100, each described optical sensor 144 is formed at the top of described printed-wiring board (PWB) 100, and each described the 2nd LED142 all constitutes the grid that an edge is connected to the shell 110 of described display screen with each described optical sensor 144.Described hole 106 correspondences are formed at each described the 2nd LED142 of described printed-wiring board (PWB) 100 belows, are beneficial to described the 2nd LED142 and send detection light.
As shown in figure 28, each described the 2nd LED142 is formed at the top of described printed-wiring board (PWB) 100, each described optical sensor 144 is formed at the below of described printed-wiring board (PWB) 100, and each described the 2nd LED142 all constitutes the grid that an edge is connected to the shell 110 of described display screen with each described optical sensor 144.Described hole 106 correspondences are formed at each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to each described optical sensor 144 and receive described detection light.
As shown in figure 29, each described the 2nd LED142 is formed at the below of described printed-wiring board (PWB) 100, and is formed on the described assisting base plate 160.Each described optical sensor 144 is formed at the top of described printed-wiring board (PWB) 100, and constitutes the grid that an edge is connected to the shell 110 of described display screen.Described hole 106 correspondences are formed at each described the 2nd LED142 of described printed-wiring board (PWB) 100 belows, are beneficial to described the 2nd LED142 and send detection light.
As shown in figure 30, each described the 2nd LED142 is formed at the top of described printed-wiring board (PWB) 100, and constitutes the grid that an edge is connected to the shell 110 of described display screen.Each described optical sensor 144 is formed at the below of described printed-wiring board (PWB) 100, and is formed on the described assisting base plate 160.Described hole 106 correspondences are formed at each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to each described optical sensor 144 and receive described detection light.
As shown in figure 31, each described the 2nd LED142 is formed at the below of described printed-wiring board (PWB) 100, each described optical sensor 144 is formed at the top of described printed-wiring board (PWB) 100, and each described the 2nd LED142 all is formed on the described assisting base plate 160 with each described optical sensor 144.Described hole 106 correspondences are formed at each described the 2nd LED142 of described printed-wiring board (PWB) 100 belows, are beneficial to described the 2nd LED142 and send detection light.
Shown in figure 32, each described the 2nd LED142 is formed at the top of described printed-wiring board (PWB) 100, each described optical sensor 144 is formed at the below of described printed-wiring board (PWB) 100, and each described the 2nd LED142 all is formed on the described assisting base plate 160 with each described optical sensor 144.Described hole 106 correspondences are formed at each described optical sensor 144 of described printed-wiring board (PWB) 100 belows, are beneficial to each described optical sensor 144 and receive described detection light.
It should be noted that, in the various embodiments described above, for accurately judging touch location, each described the 2nd LED142 and/or each the described optical sensor 144 that are formed on described printed-wiring board (PWB) 100 or the described assisting base plate 160 all can be matrix distribution, and the order number of the grid that the order number of the grid that each described the 2nd LED142 forms or the number of arrays of matrix can form with each described optical sensor 144 or the number of arrays of matrix are different.
As shown in figure 33, be example with embodiment shown in Figure 32, the principle of work of the interactive display screen that the utility model provides is described.When interactive display screen is worked, each described the 2nd LED142 sends and detects light (as shown in arrow 1), when not having touch objects to stop described detection light, each described optical sensor 144 is owing to being difficult to receive described detection light corresponding to the interval between each described the 2nd LED142, and when touch objects 130 stops described detection light, described detection light will be by described touch objects 130 (as glass bar, finger etc.) reflection (perhaps also having scattering), the part that is reflected detects light (as shown in arrow 2) and then is easy to be received by described optical sensor 144, the described optical sensor 144 that receives described detection light will analyze the variation of described detection light and draw touch data, and then the described processing unit that is coupled to each described optical sensor 144 can utilize described touch data to determine touch location.
As shown in figure 34, in the utility model the 3rd embodiment, interactive display screen comprises printed-wiring board (PWB) 100, at least two the one LED120 (visible emitting) and control module 102, each described LED120 is in order to provide display image and to be formed on the described printed-wiring board (PWB) 100, described control module 102 is formed on the described printed-wiring board (PWB) 100 and is coupled to each described LED120 to control the demonstration of each described LED120, described interactive display screen also comprises the 2nd LED (emission non-visible light, as infrared light) 142, at least two optical sensors 144, touch substrate 162 and processing unit 146, described the 2nd LED142 and each described optical sensor 144 are formed on the described printed-wiring board (PWB) 100 and the interval between all corresponding each described LED120, described touch substrate 162 places the top of a described LED120, and described the 2nd LED142 is positioned at the side of described touch substrate 162 and light that described the 2nd LED142 sends is propagated so that detection light to be provided with the frustrated total internal reflection form at described touch substrate 162; Each described optical sensor 144 is formed on the described printed-wiring board (PWB) 100 and is used to receive by the variation that touches the described detection light that causes to obtain touch data; Described processing unit 146 couples (as by line 104) optical sensor 144 as described in each, determines touch location to utilize described touch data, and described touch location is sent to described control module 102.
Described touch substrate 162 and can select acrylic material, glass, plastics for use or other have the material of good transmission performance (having good transmission performance at least in the luminous wave band of described second light-emitting device) to light.The number of described the 2nd LED142 is at least one.Be accurately to judge touch location, each described optical sensor 144 is matrix distribution on being formed at described printed-wiring board (PWB) 100 or assisting base plate 160 time; As Figure 35 to shown in Figure 38, in similar other embodiment of the 3rd embodiment therewith, each described optical sensor 144 also can be formed at described printed-wiring board (PWB) 100 above or below, at this moment, each described optical sensor 144 is grid and distributes.In addition, described optical sensing unit also can be formed on the assisting base plate 160, described assisting base plate 160 be formed at described printed-wiring board (PWB) 100 above or below.Wherein, when each described optical sensor 144 is positioned at the below of described printed-wiring board (PWB) 100, be formed with hole 106 on the described printed-wiring board (PWB) 100, described hole 106 corresponding each described optical sensor 144.
At this moment, the angle of described the 2nd LED142 emission light need be through special design, with utilize the luminous photograph of described the 2nd LED142 to the internal layer surface of described touch substrate 162 to produce as shown in phantom in Figure 34 frustrated total internal reflection (FTIR, Frustrated Total Internal Reflection) (touch described in the subsequent embodiment total reflections in the substrate 162 all make this dotted line represent); In other words, when described touch substrate 162 external agencys were air, total reflection can take place in the light that described the 2nd LED142 sends between the top surface of described touch substrate 162 and basal surface.And when touch objects 130 touched on the top surface of described touch substrate 162, near the total reflection condition the touch point was destroyed, and part light will no longer total reflection take place and form the part scattering, produce scattered light.Particularly, as shown in figure 34, when finger only touches position 1 on the described assisting base plate (corresponding single-point touches), the total reflection condition at 1 place, position is destroyed, total reflection will no longer take place and produce scattered light (shown in filled arrows direction among Figure 34) in part light, and this scattered light can be placed in optical sensor 1442 inductions of below, 1 place, position; At this moment, the position decidable touch according to the described optical sensor 1442 of sensing described scattered light occurs in the upper area corresponding with the position of optical sensor 1442; That is, when described processing unit parses the position of the described optical sensor 1442 that receives scattering, judge that the corresponding region that is positioned at this top, position is a touch location 1.Particularly, can judge that the corresponding region that is positioned at this coordinate position top is a touch location 1 with the position of described optical sensor 144 with its coordinate representation (for the described optical sensor of determining 144, its coordinate is known) in matrix.
And when two fingers touch on the described touch substrate 162 position 1 and position 2 (corresponding multiple point touching) simultaneously, the total reflection condition at position 1 and 2 places, position is all destroyed, total reflection will no longer take place and produce scattered light (shown in filled arrows direction among Figure 34) in part light, and this scattered light can be placed in the optical sensor 1442 of below, 1 place, position and optical sensor 1444 inductions of below, 2 places, position.At this moment, described optical sensor 1442 and 1444 will be responded to described scattered light and produce scattering data, and will obtain described scattering data with described optical sensor 1442 and 1444 processing units that couple, and described scattering data resolved, can determine to sense the described optical sensor 1442 of described scattered light and 1444 position, according to the position of described optical sensor 1442 and 1444, decidable touches the corresponding upper area in position that occurs in described optical sensor 1442 and 1444; Judge that the corresponding region that is positioned at this top, position is respectively touch location 1 and touch location 2.With in like manner last, if the position of described optical sensor 1442 and 1444 judges that with its coordinate representation in matrix the corresponding region that is positioned at this coordinate position top is respectively touch location 1 and touch location 2.
In similar other embodiment of the 3rd embodiment therewith, when the number of described the 2nd LED142 is at least two, for accurately judging touch location, each described optical sensor 144 also can have and is continuous structure that rule changes (as the uniform bar shaped of width, band shape, or even the rhombus or the rectangle that only link to each other) with a corner, if make between each described optical sensor 144 discrete, parallel, and the direction of the light that sends with described the 2nd LED142 is intersected, the continuous trend of direction that can described light and the described optical sensor 144 that intersects with it is as coordinate, the position of each point on the same described optical sensor 144 of mark, and then the position of the last each point of labeled touch screen, be beneficial to accurate touch sensitive.Similar when the principle of work of described interactive display screen is with application the 3rd embodiment when using this type of embodiment, repeat no more.
In addition, in the various embodiments described above, described assisting base plate 160 also can be selected for use and be considered as opaque material to detecting light, at this moment, also only need to form hole on described assisting base plate 160, each described LED242 or each described optical sensor 244 that the described hole correspondence is positioned at the below of described assisting base plate 160 get final product.
As shown in figure 39, the utility model also provides a kind of interactive projection screen, in an embodiment of interactive projection screen, described interactive projection screen comprises curtain 200, described curtain 200 comprises first 202 and second 204, described second 204 with described first 202 reverse, described first 202 in order to show by projector equipment 220 image projected, described second 204 also is attached with at least two LED242 and at least two optical sensors 244 (each described optical sensor 244 composition optical sensing unit); Each described LED242 is used to provide detection light; Each described optical sensor 244 is used for receiving by the optical parametric variation that touches the described detection light that causes to obtain touch data (described optical parametric can be luminous flux, brightness, luminous intensity, spatial light intensity distribution, relative spectral power distributes or a kind of or its combination of colourity); Described curtain also comprises processing unit, and described processing unit is coupled to each described optical sensor 244, determines touch location to utilize described touch data.Wherein, the interval between each described optical sensor 244 corresponding each described LED242.Be accurate senses touch position, each described LED242 and each described optical sensor 244 all can be grid and distribute.
Described processing unit is known the touch data of the position of each the described optical sensor 244 that comprises touch sensitive by means of comprising within it a kind of algorithm, and the software of controlling described algorithm can be by different programmers with various forms and programming language establishment.
In other embodiments relevant with the utility model interactive projection screen embodiment, also can utilize other second light-emitting devices to provide in the described interactive display screen and detect light (as example, as non-visible lights such as infrared rays), described second light-emitting device can be Organic Light Emitting Diode (OLED) or cold-cathode fluorescence lamp (CCFL).It should be noted that, position relation between the grid that the grid that is formed by each described LED242 and each described optical sensor 244 form can be adjusted flexibly, both can be as shown in figure 39, the grid that is formed by each described LED242 is positioned at the top of the grid that is formed by each described optical sensor 244, also can be as shown in figure 40, the grid that is formed by described optical sensor 244 is positioned at the top of the grid that is formed by each described LED242.
In addition, to shown in Figure 47, described second luminescence unit and/or described optical sensing unit can be formed on the identical or different matrix 240 as Figure 41, and described matrix 240 is attached to described second 204.Be accurate senses touch position, described second luminescence unit and/or the described optical sensing unit that are formed on the described matrix 240 are matrix distribution.
Particularly, as shown in figure 41, each described LED242 is attached to second 204 of described curtain 200, each described optical sensor 244 is formed on the described matrix 240, described matrix 240 is attached to second 204 of described curtain 200, and each described LED242 constitutes the grid that an edge is connected to described curtain 200, and each described optical sensor 244 is matrix distribution.The grid that forms by described LED242 be arranged in described matrix 240 the top (presents, being positioned at the top, to mean second 204 of the described curtain of its distance nearer; Second 204 of meaning the described curtain of its distance below being positioned at is farther, subsequent embodiment together, repeat no more), each described LED242 and each described optical sensor 244 receive the detection light that is sent by described LED242 all in correspondence with each other in the other side's interval to maximally utilise described optical sensor 244.In like manner, as shown in figure 42, in another embodiment, the grid that is formed by described LED242 is positioned at the below of described matrix 240.When described grid was positioned at the below of described matrix 240, described matrix 240 both can have been selected for use and be considered as material transparent to detecting light, also can form hole on described matrix 240, and the described hole correspondence is positioned at each described LED242 of the below of described matrix 240.
With the described embodiment of Figure 41 is example, and the principle of work of described interactive projection screen is described, the principle of work of other embodiment repeats no more.As shown in figure 43, when the interactive projection screen work, each described LED242 sends and detects light (as shown in arrow 1), when not having touch objects to stop described detection light, each described optical sensor 244 is owing to being difficult to receive described detection light corresponding to the interval between each described LED242, and when touch objects 230 stops described detection light, described detection light will be by described touch objects 230 (as glass bar, finger etc.) reflection (perhaps also having scattering), the part that is reflected detects light (as shown in arrow 2) and then is easy to be received by described optical sensor 244, the described optical sensor 244 that receives described detection light will analyze the variation of described detection light and draw touch data, and then the described processing unit that is coupled to each described optical sensor 244 can utilize described touch data to determine touch location.
In addition, as shown in figure 44, in another embodiment, each described LED242 is formed on the described matrix 240, described matrix 240 is attached to second 204 of described curtain 200, each described optical sensor 244 is attached to second 204 of described curtain 200, and each described LED242 is matrix distribution, and each described optical sensor 244 constitutes the grid that an edge is connected to described curtain 200.Described matrix 240 is positioned at the top of the grid that is formed by each described optical sensor 244.In like manner, as shown in figure 45, in another embodiment, described matrix 240 is positioned at the below of the grid that is formed by each described optical sensor 244.Among such embodiment, each described LED242 and each described optical sensor 244 receive the detection light that is sent by described LED242 all in correspondence with each other in the other side's interval to maximally utilise described optical sensor 244.When described matrix 240 is positioned at by the top of described grid, described matrix 240 both can have been selected for use and be considered as material transparent to detecting light, also can form hole on described matrix 240, the described hole correspondence is positioned at each described optical sensor 244 of the below of described matrix 240.
In an embodiment again, each described LED242 can be formed on the different described matrixes 240 with each described optical sensor 244, described matrix 240 is attached to second 204 of described curtain 200, and each described LED242 and each described optical sensor 244 are matrix distribution, the described matrix 240 that is formed with each described LED242 both can be as shown in figure 46, be positioned at the below of the described matrix 240 that is formed with each described optical sensor 244, also can be as shown in figure 47, be positioned at its top, even, can be as shown in figure 48, each described LED242 and each described optical sensor 244 can be formed on the same described matrix 240, wherein, each described LED242 and each described optical sensor 244 receive the detection light that is sent by described LED242 all in correspondence with each other in the other side's interval to maximally utilise described optical sensor 244.Described matrix 240 both can have been selected for use and be considered as material transparent to detecting light, also can form hole on the described matrix 240 above being positioned at, and the described hole correspondence is positioned at each described LED242 or each described optical sensor 244 of the described matrix 240 of below.
Wherein, described matrix 240 is preferably flexible material, is beneficial to the described matrix 240 of described second luminescence unit of carrying and/or described optical sensing unit is together rolled with described curtain.
In the various embodiments described above, described optical sensor is a kind of or its combination in photoresistance, photodiode, phototriode, photoelectrical coupler or the photoelectric cell.Described optical sensor is the optical sensor of optical transparency.The light that described second luminescence unit is sent is infrared light, and described optical sensor is the infrared optics sensor.
Method described in the utility model is not limited to the embodiment described in the embodiment, and those skilled in the art draw other embodiment according to the technical solution of the utility model, belong to technological innovation scope of the present utility model equally.
Claims (25)
1. interactive display screen, described interactive display screen comprises printed-wiring board (PWB), first luminescence unit and control module, described first luminescence unit is in order to provide display image, described control module is formed on the described printed-wiring board (PWB) and is coupled to described first luminescence unit to control described first luminescence unit, it is characterized in that: described interactive display screen also comprises second luminescence unit, optical sensing unit and processing unit, and described second luminescence unit is used to provide detection light; Described optical sensing unit is used to receive by the optical parametric variation that touches the described detection light that causes to obtain touch data; Described processing unit is coupled to described optical sensing unit, determines touch location to utilize described touch data, and described touch location is sent to described control module.
2. interactive display screen according to claim 1, it is characterized in that: described first luminescence unit comprises at least two first light-emitting devices, each described first light-emitting device is to be determined to arrange, described second luminescence unit comprises at least two second light-emitting devices, described optical sensing unit comprises at least two optical sensors, and each described second light-emitting device and described optical sensor are all corresponding to the other side's interval and the interval between each described first light-emitting device.
3. interactive display screen according to claim 1 is characterized in that: described first luminescence unit is formed on the described printed-wiring board (PWB).
4. interactive display screen according to claim 3 is characterized in that: described second luminescence unit and described optical sensing unit be formed at jointly or respectively described printed-wiring board (PWB) above or below.
5. interactive display screen according to claim 4 is characterized in that: described optical sensing unit is grid and distributes.
6. interactive display screen according to claim 3, it is characterized in that: described second luminescence unit and/or described optical sensing unit are formed on described printed-wiring board (PWB) or the assisting base plate, perhaps, described second luminescence unit and described optical sensing unit are formed at respectively on described assisting base plate and the described printed-wiring board (PWB), described assisting base plate be formed at described printed-wiring board (PWB) above or below; Perhaps, described second luminescence unit is formed at respectively on the different described assisting base plates with described optical sensing unit, described assisting base plate be formed at described printed-wiring board (PWB) above or below.
7. interactive display screen according to claim 6 is characterized in that: the described optical sensing unit that is formed on described printed-wiring board (PWB) or the described assisting base plate is matrix distribution.
8. according to each described interactive display screen in the claim 4 to 7, it is characterized in that: when described second luminescence unit and/or described optical sensing unit are positioned at the below of described printed-wiring board (PWB), be formed with hole on the described printed-wiring board (PWB), corresponding described second luminescence unit of described hole and/or described optical sensing unit.
9. interactive display screen according to claim 1, it is characterized in that: described interactive display screen also comprises the touch substrate, described touch substrate places the top of described first luminescence unit, described second luminescence unit is positioned at the side of described touch substrate, the light that described second luminescence unit sends is propagated with the frustrated total internal reflection form in described touch substrate, described optical sensing unit be formed at described printed-wiring board (PWB) above or below.
10. interactive display screen according to claim 9 is characterized in that: described optical sensing unit is grid and distributes.
11. interactive display screen according to claim 1, it is characterized in that: described interactive display screen also comprises the touch substrate, described touch substrate places the top of described first luminescence unit, described second luminescence unit is positioned at the side of described touch substrate, the light that described second luminescence unit sends is propagated with the frustrated total internal reflection form in described touch substrate, described optical sensing unit is formed on described printed-wiring board (PWB) or the assisting base plate, described assisting base plate be formed at described printed-wiring board (PWB) above or below.
12. interactive display screen according to claim 11 is characterized in that: described optical sensing unit is matrix distribution.
13., it is characterized in that: when described optical sensing unit is positioned at the below of described printed-wiring board (PWB), be formed with hole on the described printed-wiring board (PWB), the corresponding described optical sensing of described hole unit according to each described interactive display screen in the claim 9 to 12.
14. each the described interactive display screen according among claim 1-7, the 9-12 is characterized in that: described optical sensor is a kind of or its combination in photoresistance, photodiode, phototriode, photoelectrical coupler or the photoelectric cell.
15. each the described interactive display screen according among claim 1-7, the 9-12 is characterized in that: described optical sensor is the optical sensor of optical transparency.
16. each the described interactive display screen according among claim 1-7, the 9-12 is characterized in that: the light that described second luminescence unit is sent is infrared light, described optical sensor is the infrared optics sensor.
17. interactive projection screen, described interactive projection screen comprises curtain, described curtain comprises first and second, described second with described first oppositely, described first in order to show that by the projector equipment image projected, it is characterized in that: described second also is attached with second luminescence unit and optical sensing unit; Described second luminescence unit is used to provide detection light; Described optical sensing unit is used to receive by the optical parametric variation that touches the described detection light that causes to obtain touch data; Described curtain also comprises processing unit, and described processing unit is coupled to described optical sensing unit, determines touch location to utilize described touch data.
18. interactive projection screen according to claim 17, it is characterized in that: described second luminescence unit comprises at least two light-emitting devices, described optical sensing unit comprises at least two optical sensors, the interval between corresponding each the described light-emitting device of each described optical sensor.
19. interactive projection screen according to claim 18 is characterized in that: described optical sensing unit is grid and distributes.
20. interactive projection screen according to claim 18 is characterized in that: described second luminescence unit and described optical sensing unit are formed on the identical or different described matrix, and described matrix is attached to described second.
21. interactive projection screen according to claim 20 is characterized in that: the described optical sensing unit that is formed on the described matrix is matrix distribution.
22. interactive projection screen according to claim 20 is characterized in that: described matrix is a flexible material.
23. each the described interactive projection screen according among the claim 17-22 is characterized in that: described optical sensor is a kind of or its combination in photoresistance, photodiode, phototriode, photoelectrical coupler or the photoelectric cell.
24. according to each the described interactive projection screen among the claim 17-22, it is characterized in that: described optical sensor is the optical sensor of optical transparency.
25. according to each the described interactive projection screen among the claim 17-22, it is characterized in that: the light that described second luminescence unit is sent is infrared light, described optical sensor is the infrared optics sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202793657U CN202003339U (en) | 2009-11-17 | 2009-11-17 | Interactive display screen and interactive projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202793657U CN202003339U (en) | 2009-11-17 | 2009-11-17 | Interactive display screen and interactive projection screen |
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| CN202003339U true CN202003339U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202793657U Expired - Lifetime CN202003339U (en) | 2009-11-17 | 2009-11-17 | Interactive display screen and interactive projection screen |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063221A (en) * | 2009-11-17 | 2011-05-18 | 北京汇冠新技术股份有限公司 | Interactive display screen and interactive projection screen |
| CN107390776A (en) * | 2016-05-16 | 2017-11-24 | 谷歌公司 | Interactive object with multiple electronic modules |
| CN109920341A (en) * | 2019-01-31 | 2019-06-21 | 山东晶泰星光电科技有限公司 | A kind of the LED display module and interactive mode LED display of interactive mode |
| CN110517544A (en) * | 2019-08-27 | 2019-11-29 | 曹忠浮 | A kind of distribution desktop projection interactive education system |
-
2009
- 2009-11-17 CN CN2009202793657U patent/CN202003339U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102063221A (en) * | 2009-11-17 | 2011-05-18 | 北京汇冠新技术股份有限公司 | Interactive display screen and interactive projection screen |
| CN107390776A (en) * | 2016-05-16 | 2017-11-24 | 谷歌公司 | Interactive object with multiple electronic modules |
| CN109920341A (en) * | 2019-01-31 | 2019-06-21 | 山东晶泰星光电科技有限公司 | A kind of the LED display module and interactive mode LED display of interactive mode |
| CN110517544A (en) * | 2019-08-27 | 2019-11-29 | 曹忠浮 | A kind of distribution desktop projection interactive education system |
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