CN102033647A - Coordinate input device and display screen assembly with same - Google Patents
Coordinate input device and display screen assembly with same Download PDFInfo
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- CN102033647A CN102033647A CN 201010287018 CN201010287018A CN102033647A CN 102033647 A CN102033647 A CN 102033647A CN 201010287018 CN201010287018 CN 201010287018 CN 201010287018 A CN201010287018 A CN 201010287018A CN 102033647 A CN102033647 A CN 102033647A
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Abstract
The invention discloses a coordinate input device and a display screen assembly with the same, belonging to the field of coordinate input. The coordinated input device in the invention comprises a solid panel, a sensor unit arranged below the solid panel and a control module. The sensor unit comprises two column strip type film sensors and two row strip type film sensors, wherein the two column strip type film sensors extend along a first direction and are respectively used for generating two column signals by sensing a click in an input region, the two row strip type film sensors extend along a second direction vertical to the first direction and are respectively used for generating two row signals by sensing the click in the input region; the control module comprises a multi-stage amplifying circuit and a processing unit, wherein the multi-stage amplifying circuit is used for receiving and respectively amplifying the two column signals and the two row signals, and the processing unit is used for carrying out correlation computation on the two amplified column signals to calculate X coordinate of the position of the click and carrying out correlation computation on the two row signals to calculate Y coordinate of the position of the click. The display screen assembly with the coordinate input device in the invention has good display effect.
Description
Technical field
The present invention relates to input media.More specifically, the present invention relates to a kind of coordinate entering device and display device with coordinate entering device.
Background technology
Along with the fast development of electronic message unit, the input of people and electronic message unit no longer is confined to the operation of button alternately, carries out alternately but need directly click on display screen more and more with electronic message unit.At present, carrying out mutual main technical schemes by click display screen and equipment is the touch pad that applies electric resistance sensor or capacitive transducer form on display screen, the operator carries out the coordinate input by using finger, pen etc. that display screen is clicked, and directly carries out man-machine interaction on the display screen thereby be implemented in.But because the board-like sensor of prior art is to be applied directly to the entire display screen top, the material of sensor and thickness have reduced to arrive the light of display screen and from the light quantity of display screen transmission and the light that reflects, thereby have influenced the display effect of display screen.For reflective display screen, sensor is more remarkable to the display effect influence.
Along with the development of display screen technology, display screen is miniaturization and slimming day by day, and board-like contactor control device can not satisfy user's requirement.Simultaneously, people are more and more to the demand of equipment touch-control, and the production cost of touch technology and technology difficulty have also hindered popularizing and further developing of touch technology at present.
Thereby, need a kind of slim display device that various electronic display units are had the coordinate entering device of good applicability and have this coordinate entering device.
Summary of the invention
The object of the invention is to provide a kind of coordinate entering device, in order to overcome the problem that adds the transmittance that sensor brings on the display screen.
According to the present invention, a kind of coordinate entering device is provided, comprise solid-state panel, be arranged at solid-state and the sensor unit plate below, and control module,
This sensor unit comprises:
Two row strip film sensors that extend along first direction, be respectively applied for induction to the click of input area produce two column signals and
Two capable strip film sensors that extend perpendicular to the second direction of first direction on the edge are respectively applied for induction two capable signals of this click generation to input area; This control module comprises:
The multichannel amplifying circuit is used for receiving and amplifying respectively described two column signals and two capable signals,
Processing unit is used for by described two column signals through amplifying being carried out the related X coordinate that calculates this click location, and by described two the capable signals through amplifying being carried out the Y coordinate of related this click location of calculating.
Preferably, described row strip film sensor and row strip film device are positioned at the edge of described input area.
According to the present invention, a kind of display device with coordinate entering device is provided, comprise display screen, the transparent protective film of display screen top is arranged at the sensor unit between display screen and the transparent protective film, and control module, and this sensor unit comprises:
Be positioned at two row strip film sensors that extend along first direction outside the viewing area of display screen, be respectively applied for induction to the click of this viewing area produce two column signals and
Be positioned at the capable strip film sensor that extend perpendicular to the second direction of first direction on two edges outside the viewing area of display screen, be respectively applied for induction two capable signals of this click generation input area;
This control module comprises:
The multichannel amplifying circuit is used for receiving and amplifying respectively described two column signals and two capable signals,
Processing unit is used for by described two column signals through amplifying being carried out the related X coordinate that calculates this click location, and by described two the capable signals through amplifying being carried out the Y coordinate of related this click location of calculating.
According to the present invention, a kind of display device with coordinate entering device is provided, comprise substrate, display screen is arranged at the sensor unit between substrate and the display screen, and control module, it is characterized in that,
This sensor unit comprises:
Two row strip film sensors that extend along first direction, be respectively applied for induction to the click of input area produce two column signals and
Two capable strip film sensors that extend perpendicular to the second direction of first direction on the edge are respectively applied for induction two capable signals of this click generation to input area;
This control module comprises:
The multichannel amplifying circuit is used for receiving and amplifying respectively described two column signals and two capable signals,
Processing unit is used for by described two column signals through amplifying being carried out the related X coordinate that calculates this click location, and by described two the capable signals through amplifying being carried out the Y coordinate of related this click location of calculating.
Preferably, describedly will two column signals carry out the related X coordinate that calculates this click location and comprise: will described two column signals carry out association and obtain column data after the association through amplifying through amplifying, column data after the association is mated with the X coordinate characteristic of column data after the sign that presets is related and X coordinate corresponding relation, determine the X coordinate of described click location; And describedly will two capable signals carry out the related Y coordinate that calculates this click location and comprise: will described two capable signals carry out line data after the association acquisition association through amplifying through amplifying, line data after the association is mated with the Y coordinate characteristic of line data after the sign that presets is related and Y coordinate corresponding relation, determine the Y coordinate of described click location.
Preferably, describedly will described two column signals carry out association and obtain related rank rear data and comprise being divided by after two column signals are summed up respectively and obtain related column data afterwards through amplifying; And described will described two capable signals carry out through amplifying association obtain related after line data comprise two being divided by after capable signal sums up respectively and obtain line data after the association.
Preferably, have first between described two row strip film sensors at interval, have second between described two capable strip film sensors at interval.
Preferably, described control module further comprises the comparator circuit that is connected with the multichannel amplifying circuit, when the amplitude of one of the column signal through amplifying and row signal during greater than threshold level, comparator circuit output hopping signal is to processing unit, this processing unit receives skip signal and enters interruption status, begins to gather column signal and the capable signal through amplifying through amplifying.
Preferably, described display screen is the bistable state display screen.
According to the present invention, when the input area of display screen being clicked with finger or such as the pointing device of pen, be arranged on the sensor unit that display screen below or top be positioned at the edge, viewing area and respond to this clicks generation electric signal, and electric signal is outputed to control module.The amplitude of each electric signal, phase place, the shape material such as pointing device, click force, click speed and the contact factors such as position on coordinate entering device with the contact respectively are relevant.Control module receives the electric signal through amplifying, by respectively the column signal of row strip film sensor and the capable signal of row strip film sensor being carried out association, can eliminate the other factors except that the position of clicking, to the influence of induced signal and obtain only relevant related back data, calculate X coordinate and the Y coordinate of clicking input such as the speed of the dynamics of the material of contact, click, click with click location.
According to coordinate entering device of the present invention, by placing display screen below by the sensor unit that the strip film sensor constitutes or placing position outside the viewing area, display screen top, solved the problem that in the prior art coordinate input pickup is applied to influence on the display screen display screen transmittance, significantly improved the display effect of display device with coordinate entering device.Simultaneously, the strip film sensor that the present invention selects for use shields sensor than other touch sensing such as resistance, and the cost of sensors such as capacitance plate sensor is low, and produces easily, and therefore to have a cost low for coordinate entering device according to the present invention, easily the characteristics of producing.
Will be according to coordinate entering device of the present invention and display screen, particularly bistable state display screen combination can obtain small-sized, ultra-thin, portable and energy-conservation touch-control display device.
Description of drawings
Below with reference to accompanying drawings and in conjunction with the embodiments the present invention is specifically described.
Fig. 1 is the structural representation according to the coordinate entering device of the embodiment of the invention 1;
Fig. 2 is the circuit diagram according to the coordinate entering device of the embodiment of the invention 1;
Fig. 3 is the workflow diagram according to the coordinate entering device of the embodiment of the invention 1;
Fig. 4 is the induced signal waveform synoptic diagram according to each the strip film sensor in the coordinate entering device of the embodiment of the invention 1;
Fig. 5 is the structural representation according to the display device of the embodiment of the invention 2;
Fig. 6 is the structural representation according to the display device of the embodiment of the invention 3.
Embodiment
With reference to the accompanying drawings and by embodiments of the invention, technical scheme of the present invention is done detailed description.Should be appreciated that each component is schematic and nonrestrictive shown in the accompanying drawing, each feature is drawn not in scale.In each device accompanying drawing, identical Reference numeral is represented identical component.
Embodiment 1
Fig. 1 is the structural representation according to the coordinate entering device 100 of the embodiment of the invention 1.As shown in Figure 1, coordinate entering device of the present invention comprises housing 101, solid-state panel 102, row strip film sensor 103, row strip film sensor 104, control module 105 and protective medium 107.Housing 101 is used to support each parts with the stationary coordinate input media.Solid-state panel 102 tops are coated with protective medium 107, as glass or acrylic board etc.Be provided with between solid-state panel 102 and the protective medium 107 two along first direction for example the row strip film sensor 103 that extends of column direction and two edges perpendicular to the second direction of the first direction capable strip film sensor 104 that extends of line direction for example.Preferably, have first between two row strip film sensors 103 at interval, have second between two capable strip film sensors 104 at interval.Row strip film sensor 103 and row strip film sensor 104, for example adopt piezoelectric film sensor in the present invention, be used for responding to the click PointA of pointing device to the coordinate entering device input area, the pressure that acts on the coordinate entering device input area is converted to analog electrical signal, for example be voltage signal in the present embodiment, and export two column signals and two capable signals respectively.The shape, amplitude, phase place of the analog electrical signal waveform of output and pointing device are that material character, click force, click speed and the click location of contact 106 is relevant.Control module 105 is positioned at housing 101, is used to receive the column signal and the row signal of row strip film sensor and the output of row thin film sensor; Amplify each signal that is received; Two capable signals that two column signals after amplifying will be carried out after association also will be amplified carry out association; And determine X coordinate and the Y coordinate of click location PointA according to the data after the association.
Fig. 2 is the electrical block diagram according to the coordinate entering device of the embodiment of the invention 1.As shown in Figure 2, the circuit structure of coordinate entering device of the present invention comprises sensor unit 211 and control module 105, sensor unit 211 has two row strip film sensors 103 and two capable strip film sensors 104, control module 105 has multichannel amplifying circuit 212, comparator circuit 213 and processing unit 214.Multichannel amplifying circuit 212 for example is No. four amplifying circuits in the present embodiment, is connected with each strip film sensor in the sensor unit 211, receives the induced signal of each thin film sensor output and each induced signal is amplified.Comparator circuit 213 for example is that voltage comparator circuit links to each other with No. four amplifying circuits in the present embodiment, is used for the amplitude and the threshold voltage of the induced signal after amplifying are compared.The amplitude of at least one signal in four induced signals after amplifying is during greater than threshold voltage, then judge have click and the output hopping signal to handling unit 214.Processing unit 214 links to each other with voltage comparator circuit 213 with No. four amplifying circuits 212.When processing unit 214 receives the skip signal of voltage comparator circuit 213 outputs, trigger interrupt routine, four tunnel waveform amplification data of No. four amplifying circuits 212 outputs are gathered in beginning in real time, carry out data processing so that calculate the X coordinate and the Y coordinate of this click respectively, and export X, the Y coordinate that calculates.Workflow to the coordinate entering device of the embodiment of the invention 1 is described further below.
Fig. 3 is the workflow diagram according to the coordinate entering device 100 of the embodiment of the invention 1.As shown in Figure 3, after the coordinate entering device start, coordinate entering device carries out initialization 301, after processing unit 214 is finished initialization operation, enters idle waiting state 302.When sensor unit 211 was sensed click 303 in the Point A place of solid-state panel 102, two row strip film sensors 103 and two capable strip film sensors 104 can be responded to respectively to produce and have the simulating signal 304 of special time voltage relationship according to the factors such as speed, strength and position of clicking 303 slider material, click.If do not click, the very faint signal of each strip film sensor output.Two row and two capable signals of sensor unit 211 outputs compare 306 at voltage comparator circuit 213 and threshold voltage after No. four amplifying circuits 212 amplify.If the amplitude of each signal after amplifying is all less than threshold voltage then processing unit 214 keeps idle waiting 302 states.If the amplitude of one of induced signal after amplifying is greater than threshold voltage, then voltage comparator circuit 213 carries out level redirect output hopping signal.Processing unit 214 receives this skip signal and enters interrupt routine, and begins four tunnel simulating signals of No. four amplifying circuits 212 outputs are gathered 307 in real time.Column signal after 214 pairs of amplifications of processing unit carries out data analysis and calculates the X coordinate and the capable signal after amplifying is carried out data analysis calculating Y coordinate 308, sends afterwards and calculates coordinate 309.Finish post-processing unit 214 and get back in the idle waiting 302, wait for the next interruption that produces of clicking.
Fig. 4 is the induced signal synoptic diagram according to each bar shaped sensor in the coordinate entering device 100 of the embodiment of the invention 1, and wherein, the horizontal ordinate among each figure is the time, and unit is a millisecond, and ordinate is the magnitude of voltage of induced signal, and unit is a microvolt.As shown in Figure 4, when the PointA place at solid-state panel 102 clicks, the row strip film sensors X 1 induction output waveform of one of row strip film sensor 103 is the column signal of A-a, and another row strip film sensors X 2 induction output waveforms are the column signal of A-b; The capable strip film sensor Y1 induction output waveform of one of row strip film sensor 104 is the capable signal of A-c, and another row strip film sensor Y2 induction output waveform is the capable signal of A-d.The amplitude of these four induced signals, phase place, the shape material such as the contact, click force, click speed and contact 6 factors such as position Point A on solid-state panel with contact 106 respectively are relevant.
To describe processing unit calculates X coordinate and Y coordinate respectively according to column signal and row signal step below in detail.Processing unit 214 receives two row simulating signals and two capable simulating signals of amplifying through No. four amplifying circuits 212, carry out related with A-b two row simulating signal A-a through amplifying, be divided by after for example two row simulating signals being summed up respectively, can eliminate the other factors except that the position of Point A, such as the influence of the speed of the dynamics of the material of contact, click, click, and obtain only relevant related back column data with the X coordinate of coordinate entering device to the row induced signal.Association to two column signals is preferably carried out after the row simulating signal is carried out digitizing.Column data after this association is mated with the X coordinate characteristic of column data after the sign in being preset in processing unit 214 is related and X coordinate corresponding relation, can determine the X coordinate of PointA.Equally, by carrying out related with A-d two capable simulating signal A-c through amplifying, be divided by after for example two capable simulating signals being summed up respectively, can eliminate other factors except that the position of Point A to the influence of induced signal, and obtain only relevant related back line data with the Y coordinate of coordinate entering device.Association to two capable signals is preferably carried out after the row simulating signal is carried out digitizing.Line data after this association is mated with the Y coordinate characteristic of line data after the sign in being preset in processing unit is related and Y coordinate corresponding relation, can determine the Y coordinate of Point A.
According to coordinate entering device of the present invention; the extremely thin strip film sensor of thickness can put on such as on the flexible solid-state panel and protective medium; for example solid-state panel and protective medium all can adopt the material such as polyethylene terephthalate (PET), make coordinate entering device further miniaturization and improve portability and become possibility.In addition, bar shaped thin film sensor quantity is few in the coordinate entering device of the present invention, can adopt such as various depositions or sputtering technology to form, and be easy to make up and assemble with various parts, has the low characteristics of easy production and cost.The present invention adopts the strip film sensor to substitute other touch sensing, as resistance screen sensor, the coordinate entering device that capacitance plate sensor etc. form, can combine with various electronic equipments and communication facilities easily and form coordinate entering device, reduce the cost of electronic equipment and communication facilities and improved the touch control characteristics of equipment.
When adopting the bistable state display screen for example electrophoretic display panel be as solid-state panel; adopt transparency glass plate as protective seam; and when the strip film sensor being arranged on outside the viewing area of display screen; the display device that forms jointly by display screen, strip film sensor and transparency protected screen; has the reflection efficiency height; characteristics such as display effect is good, and the display device size is little.To elaborate to the display device of employing below according to the coordinate entering device of the embodiment of the invention 1.
Embodiment 2
Fig. 5 is the structural representation of the display device of the embodiment of the invention 2.As shown in Figure 5, display device 500 according to the present invention comprises: substrate 501, display screen 502, row strip film sensor 503, row strip film sensor 504 and control module 505.Substrate 501 is used for supporting and fixing each parts such as display screen and control module.The display screen 2 of for example using reflection-type display screen such as electronic-paper display screen is fixed on and is used to carry out the content demonstration on the substrate 1.On the display screen 2 protective medium can be arranged, as glass or transparent acrylic film etc.Be provided with the click that the capable strip film sensor 504 that extends perpendicular to the second direction of first direction in two row strip film sensors 503 that extend along first direction and two edges is used to respond to 506 pairs of display screens of pointing device between display screen 502 and the substrate 501 and produce and export electric signal respectively.Preferably have first between two row strip film sensors X 1 and the X2 at interval, preferably have second interval between two capable strip film sensor Y1 and the Y2; The strip film sensor more preferably is provided with along the edge, viewing area.Control module 505 is used to receive the column signal and the row signal of row strip film sensor 503 and the 504 induction generations of row strip film sensor, respectively column signal and row signal are carried out signal Processing, calculate X coordinate and the Y coordinate of clicking input at the PointA place, and with the coordinate figure output that obtains.Identical among the structure of control module 505 and principle of work and the embodiment 1 to the detailed description of control module, be not described in detail for simple and clear reason here.
In display device 500 according to the embodiment of the invention 2, strip film sensor 503 and 504 and substrate 501, display screen 502 and control module 505 constitute the coordinate entering device of display device together, by use such as the pointing device 506 of pen etc. click display screens realize coordinates input and and then realization and displaying contents alternately.The principle of work of this coordinate entering device is identical with the description of above-mentioned coordinate entering device at embodiment 1.Display device of the present invention has solved the transmittance problem of carrying out the sensor that touch-control causes above display screen by sensor being arranged at display screen below, makes display screen, and particularly the display effect of reflective display screen is significantly increased.Simultaneously, the strip film sensor that the present invention selects for use is than other touch sensing such as resistance shields sensor and the capacitance plate sensor thickness is thin, and cost is low, and produce easily, therefore further has thin thickness according to display device of the present invention, good portability, cost characteristics low and that easily produce.
Embodiment 3
Fig. 6 is the structural representation according to the display device of the embodiment of the invention 3.As shown in Figure 6, display device 600 of the present invention comprises display screen 602, row strip film sensor 603, row strip film sensor 604, control module 605 and transparency protected screen 607.Display screen 602, for example reflective display screen is used to carry out content and shows.Display screen 602 tops are coated with transparency protected screen 607, as glass or acrylic board etc.Be outside equipped with the capable strip film sensor 604 that extends perpendicular to the second direction of first direction in two row strip film sensors 603 that extend along first direction and two edges between display screen 602 and the protection screen 607 and in the viewing area of display screen and be used to respond to the click generation electric signal of pointing device display screen.The signal that control module 605 is used to receive row thin film sensor 603 and the 604 induction generations of row thin film sensor carries out signal Processing to column signal and row signal respectively, calculates X coordinate and the Y coordinate of click location PointA.Identical among the structure of control module 605 and principle of work and the embodiment 1 to the detailed description of control module, be not described in detail for simple and clear reason here.
Display device according to the embodiment of the invention 3; strip film sensor 603 and 604 and display screen 602; transparency protected screen 607 and control module 605 constitute the coordinate entering device of display device together, by use such as hand click display screen realize the coordinate input and and then realization and displaying contents alternately.The principle of work of this coordinate entering device is identical with the description of above-mentioned coordinate entering device at embodiment 1.Display device of the present invention is significantly increased the display effect of the display device that adopts reflective display screen by having solved the transmittance problem of coordinate input pickups such as carrying out resistance screen that touch-control causes or capacitance plate on the entire display screen surface outside the viewing area that the strip film sensor is arranged at display screen.Simultaneously, display device of the present invention utilizes four strip film sensors lower as the cost of the display screen of other touch sensings such as resistance screen, capacitance plate than employing as sensor element, and produce easily, therefore further have cost characteristics low and that easily produce according to display device of the present invention.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.Those of ordinary skill in the art is reading on the basis of instructions of the present invention and can make amendment to the technical scheme that each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.Protection scope of the present invention is only limited by the claims of enclosing.
Claims (17)
1. a coordinate entering device comprises solid-state panel, is arranged on the sensor unit of solid-state panel below, and control module, it is characterized in that,
This sensor unit comprises:
Two row strip film sensors that extend along first direction, be respectively applied for induction to the click of input area produce two column signals and
Two capable strip film sensors that extend perpendicular to the second direction of first direction on the edge are respectively applied for induction two capable signals of this click generation to input area;
This control module comprises:
The multichannel amplifying circuit, be used for receiving and amplifying respectively described two column signals and two capable signals, processing unit, be used for by described two column signals through amplifying are carried out association, calculate the X coordinate of this click location, and, calculate the Y coordinate of this click location by described two the capable signals through amplifying are carried out association.
2. coordinate entering device according to claim 1 is characterized in that,
Described two column signals through amplifying are carried out association, the X coordinate that calculates this click location comprises: will described two column signals through amplifying carry out association and obtain column data after the association, column data after the association is mated with the X coordinate characteristic of column data after the sign that presets is related and X coordinate corresponding relation, determine the X coordinate of this click location;
Described two capable signals through amplifying are carried out association, the Y coordinate that calculates this click location comprises: will described two the capable signals through amplifying carry out line data after the association acquisition association, line data after the association is mated with the Y coordinate characteristic of line data after the sign that presets is related and Y coordinate corresponding relation, determine the Y coordinate of this click location.
3. coordinate entering device according to claim 2 is characterized in that,
Describedly will two column signals carry out association and obtain related rank rear data and comprise being divided by after two column signals are summed up respectively and obtain related column data afterwards through amplifying;
Described will two capable signals carry out through amplifying association obtain related after line data comprise two being divided by after capable signal sums up respectively and obtain line data after the association.
4. coordinate entering device according to claim 1 is characterized in that, has first between described two row strip film sensors at interval, has second between described two capable strip film sensors at interval.
5. coordinate entering device according to claim 1 is characterized in that, described row strip film sensor and row strip film sensor are positioned at the edge of described input area.
6. coordinate entering device according to claim 1 is characterized in that,
Described control module also comprises the comparator circuit that is connected with the multichannel amplifying circuit, when the amplitude of one of the column signal through amplifying and row signal during greater than threshold level, comparator circuit output hopping signal is to processing unit, this processing unit receives skip signal and enters interruption status, begins to gather column signal and the capable signal through amplifying through amplifying.
7. the display device with coordinate entering device comprises display screen, and the protective clear layer of display screen top is arranged at the sensor unit between display screen and the protective clear layer, and control module, it is characterized in that,
This sensor unit comprises:
Be positioned at two row strip film sensors that extend along first direction outside the viewing area of display screen, be respectively applied for induction to the click of this viewing area produce two column signals and
Be positioned at the capable strip film sensor that extend perpendicular to the second direction of first direction on two edges outside the viewing area of display screen, be respectively applied for induction two capable signals of this click generation the viewing area;
This control module comprises:
The multichannel amplifying circuit is used for receiving and amplifying respectively described two column signals and two capable signals,
Processing unit is used for calculating the X coordinate of this click location by described two column signals through amplifying are carried out association, and by described two the capable signals through amplifying are carried out association, calculates the Y coordinate of this click location.
8. the display device with coordinate entering device according to claim 7 is characterized in that,
Described two column signals through amplifying are carried out association, the X coordinate that calculates this click location comprises: will described two column signals through amplifying carry out association and obtain column data after the association, the X coordinate characteristic of column data after the association with column data after the sign that presets is related and X coordinate corresponding relation compared, determine the X coordinate of described click location;
Described two capable signals through amplifying are carried out association, the Y coordinate that calculates this click location comprises: will described two the capable signals through amplifying carry out line data after the association acquisition association, the Y coordinate characteristic of line data after the association with line data after the sign that presets is related and Y coordinate corresponding relation compared, determine the Y coordinate of described click location.
9. the display device with coordinate entering device according to claim 8 is characterized in that,
Describedly will two column signals carry out association and obtain related rank rear data and comprise being divided by after two column signals are summed up respectively and obtain related column data afterwards through amplifying;
Described will two capable signals carry out through amplifying association obtain related after line data comprise two being divided by after capable signal sums up respectively and obtain line data after the association.
10. the display device with coordinate entering device according to claim 7 is characterized in that, described display screen is the reflection-type display screen.
11. the display device with coordinate entering device according to claim 7 is characterized in that, described display screen is the bistable state display screen.
12. the display device with coordinate entering device comprises substrate, display screen is arranged at the sensor unit between substrate and the display screen, and control module, it is characterized in that,
This sensor unit comprises:
Two row strip film sensors that extend along first direction, be respectively applied for induction to the click of input area produce two column signals and
Two capable strip film sensors that extend perpendicular to the second direction of first direction on the edge are respectively applied for induction two capable signals of this click generation to input area;
This control module comprises:
The multichannel amplifying circuit is used for receiving and amplifying respectively described two column signals and two capable signals,
Processing unit is used for calculating the X coordinate of this click location by described two column signals through amplifying are carried out association, and by described two the capable signals through amplifying are carried out association, calculates the Y coordinate of this click location.
13. the display device with coordinate entering device according to claim 12 is characterized in that,
Described two column signals through amplifying are carried out association, the X coordinate that calculates this click location comprises: will described two column signals through amplifying carry out association and obtain column data after the association, the X coordinate characteristic of column data after the association with column data after the sign that presets is related and X coordinate corresponding relation compared, determine the X coordinate of described click location;
Described two capable signals through amplifying are carried out association, the Y coordinate that calculates this click location comprises: will described two the capable signals through amplifying carry out line data after the association acquisition association, the Y coordinate characteristic of line data after the association with line data after the sign that presets is related and Y coordinate corresponding relation compared, determine the Y coordinate of described click location.
14. the display device with coordinate entering device according to claim 13 is characterized in that,
Describedly will two column signals carry out association and obtain related rank rear data and comprise being divided by after two column signals are summed up respectively and obtain related column data afterwards through amplifying;
Described will two capable signals carry out through amplifying association obtain related after line data comprise two being divided by after capable signal sums up respectively and obtain line data after the association.
15. the display device with coordinate entering device according to claim 12 is characterized in that, described display screen is the bistable state display screen.
16. the display device with coordinate entering device according to claim 12 is characterized in that, has first between described two row strip film sensors at interval, has second between described two capable strip film sensors at interval.
17. the display device with coordinate entering device according to claim 12 is characterized in that described strip film sensor is positioned at the edge of described input area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287018 CN102033647A (en) | 2010-09-17 | 2010-09-17 | Coordinate input device and display screen assembly with same |
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|---|---|---|---|
| CN 201010287018 CN102033647A (en) | 2010-09-17 | 2010-09-17 | Coordinate input device and display screen assembly with same |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1227431A2 (en) * | 2001-01-26 | 2002-07-31 | Fujitsu Limited | Touch panel device |
| US6590569B1 (en) * | 2000-12-19 | 2003-07-08 | Kohji Toda | Ultrasonic touch-position sensing device |
| CN101036105A (en) * | 2004-10-01 | 2007-09-12 | 3M创新有限公司 | Vibration sensing touch input device |
| CN101268435A (en) * | 2005-09-21 | 2008-09-17 | Smk株式会社 | touch panel |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6590569B1 (en) * | 2000-12-19 | 2003-07-08 | Kohji Toda | Ultrasonic touch-position sensing device |
| EP1227431A2 (en) * | 2001-01-26 | 2002-07-31 | Fujitsu Limited | Touch panel device |
| CN101036105A (en) * | 2004-10-01 | 2007-09-12 | 3M创新有限公司 | Vibration sensing touch input device |
| CN101268435A (en) * | 2005-09-21 | 2008-09-17 | Smk株式会社 | touch panel |
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Application publication date: 20110427 |