CN102830852A - Touch device - Google Patents
Touch device Download PDFInfo
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- CN102830852A CN102830852A CN201110156069XA CN201110156069A CN102830852A CN 102830852 A CN102830852 A CN 102830852A CN 201110156069X A CN201110156069X A CN 201110156069XA CN 201110156069 A CN201110156069 A CN 201110156069A CN 102830852 A CN102830852 A CN 102830852A
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Abstract
The invention discloses a touch device, which comprises a display, a group of solar cells and a group of photoelectric detectors. The display comprises an outer frame and a display panel. The outer frame is located at the periphery of the display panel. The solar cells are arranged in the outer frame, and the solar cells can form a group of infrared light sources under an electroluminescent state. The photoelectric detectors are arranged in the outer frame and used for receiving corresponding rays emitted from the infrared light sources.
Description
Technical field
The present invention relates to a kind of contactor control device, and particularly relate to a kind of contactor control device that utilizes solar battery electroluminescence.
Background technology
Since the contact panel technical development, contact panel has occupied high city and has accounted for rate in consumption electronic product.Seen the touch-control display panel that is integrated with touch-control and Presentation Function in the existing market, can be used on the consumption electronic products easy to carry, for example products such as wireless communications handset, notebook computer, panel computer, digital camera.
With optical touch control panel, optical touch control panel comprises display, light source and sensor.In general, light source, sensor all are positioned at the top of display, and light source and sensor all are positioned at by the display frame.When the object position of user's finger or pointer was in display frame, the part light that light source sent was blocked by object.Thus, according to the received image of sensor, the coordinate position of object position in display frame can judge.
Traditional optical formula contact panel, for the coordinate position of judgment object in display frame accurately, improving resolution, with tens of light emitting diodes be closely arranged in picture around, the netted light source that is interspersed with formation.The density of light emitting diode is high more, and the light signal that can pass through in the unit area is then many more, more the position at easy identification object place.When touch-control takes place; The light of light emitting diode is covered and is produced shade on reflection bar; At this moment the received image of sensor is not a complete light signal just, but is cut into sectional light signal by shade, and carry out logical operation through touch-control circuit this moment; Can calculate the position that shade covers reflection bar, be used for the actual coordinate position of judgment object.Yet if there is some light emitting diode to break down, sensor can think it is the shade that its light is covered generation by mistake, causes the received image possibility distortion of sensor, and then the accuracy of influence judgement position of touch, and more severe patient possibly cause inefficacy.
Because light emitting diode is point source of light and independent assembling, quantity is many more, and required cost is high more.Closely be arranged in together even will assemble the light emitting diode of accomplishing, still must cooperate reflection bar just can carry out accurate touch-control location.If there is some light emitting diode to break down, must puts in order the group light emitting diode and change or keep in repair, thereby keep in repair comparatively complicacy and cost height.
Summary of the invention
The object of the present invention is to provide a kind of contactor control device; Produce light through solar battery electroluminescence; And cooperate OPTICAL SENSORS to carry out the touch-control location; Because the energy gap of solar cell is low, as long as solar cell can send the light of specific wavelength after being applied in forward bias voltage drop, so can be as the line source of optical touch-control device.
For reaching above-mentioned purpose, according to an aspect of the present invention, a kind of contactor control device is proposed, it comprises a display, one group of solar cell and one group of OPTICAL SENSORS.Display comprises a housing and a display panel.Housing be positioned at display panel around.This group solar cell is disposed in the housing, and this group solar cell forms one group of infrared light supply down in the electroluminescence state.This group OPTICAL SENSORS is disposed in the housing, in order to receive this group corresponding light that infrared light supply sent.
For there is better understanding above-mentioned and other aspects of the present invention, hereinafter is special lifts preferred embodiment, and cooperates appended accompanying drawing, elaborates as follows:
Description of drawings
Fig. 1 receives illumination and the graph of a relation of output current on the light time unit area for solar cell;
Fig. 2 applies the graph of a relation of output current and corresponding voltage behind the external voltage for solar cell;
Fig. 3 is the spectrogram that the solar cell of one embodiment of the invention is sent down in the electroluminescence state;
Fig. 4 A and Fig. 4 B are that the schematic top plan view of the contactor control device of one embodiment of the invention reaches the partial cutaway schematic along the I-I line segment;
Fig. 5 is the schematic top plan view of the contactor control device of one embodiment of the invention;
Fig. 6 is the schematic top plan view of the contactor control device of one embodiment of the invention.
The main element symbol description
10: object
100～102: contactor control device
110: display
120: housing
122: the first frameworks
124: the second frameworks
126: the three frameworks
128: the four frameworks
130: display panel
131～135: solar cell
137～139: first～the 3rd battery part
141～143: OPTICAL SENSORS
150: processor
C1: first corner
C2: second corner
L1～L3: light
S1～S3: infrared light supply
Embodiment
The contactor control device of present embodiment is to utilize the electroluminescent principle of solar cell (solar cell) next luminous.Solar cell can be monocrystaline silicon solar cell, polysilicon solar cell or non-crystal silicon solar cell.Generally speaking; Solar cell is a semiconductor material of processing different energy gaps with semiconductor fabrication process, when the energy of irradiation light during greater than its energy gap, will produce that electronics-hole carrier is right freely in inside; Again through the electric field action between P-type semiconductor (positive pole) and the N-type semiconductor (negative pole); Make hole and electronics form an electric current toward different electrode respectively, be about hundreds of micromicroamperes and do not wait to the number milliampere, as shown in Figure 1.Fig. 1 illustrates solar cell and receives illumination and the graph of a relation of output current on the light time unit area.
Present embodiment applies forward bias voltage drop to solar cell under the situation of unglazed photograph, make solar cell send the light of specific wavelength.At this moment, as long as forward bias voltage drop connects the voltage of face greater than the P-N of solar cell, electronics combines with the hole, and the energy of combination just sends with the form of light.Please with reference to Fig. 2, it illustrates the graph of a relation that solar cell applies output current and corresponding voltage behind the external voltage.The current value of comparison Fig. 1 and Fig. 2; Can find that solar cell applies the electric current (being about 10 milliamperes) that electric current (for example 3000 milliamperes) that external voltage (for example 1.4V) produces produces when receiving illumination; Therefore can confirm that solar cell can be applicable in the contactor control device of present embodiment; As line source, and can not receive the influence of solar light irradiation.
In addition, please with reference to Fig. 3, the spectrogram that its solar cell that illustrates one embodiment of the invention is sent down in the electroluminescence state, it is an infrared light spectrum, wavelength coverage between 950～1250nm, the about 1150nm of centre wavelength.Therefore, present embodiment can produce IR through solar battery electroluminescence, and cooperates OPTICAL SENSORS to carry out the touch-control location, with the coordinate position of the object of the finger of accurately detecting the user or pointer and so on.
Below propose various embodiment and be elaborated, embodiment in order to as the example explanation, is not the scope in order to limit desire protection of the present invention only.
First embodiment
Please with reference to Fig. 4 A and Fig. 4 B, its schematic top plan view that illustrates according to the contactor control device of one embodiment of the invention reaches the partial cutaway schematic along the I-I line segment.Forming one group of infrared light supply S1～S3 with three solar cells 131～133 is example, and contactor control device 100 comprises a display 110, three solar cells 131～133 and one group of OPTICAL SENSORS 141～143.Display 110 comprises a housing 120 and a display panel 130.Housing 120 be positioned at display panel 130 around.Each solar cell all is disposed in the framework of housing 120.As an infrared light supply, so the quantity of infrared light supply for example is 3 to each solar cell under the electroluminescence state, but not as limit.Each OPTICAL SENSORS is disposed in the housing 120, in order to receive the light that corresponding infrared light supply sends.
In the present embodiment, each solar cell for example is disposed at respectively in the framework of housing 120 with strip cell.Housing 120 for example is tetragonal framework, and it has one first framework 122, one second framework 124, one the 3rd framework 126, one the 4th framework 128, the first corner C1 and one second corner C2.Please with reference to Fig. 4 A, in detail, first solar cell 131 is disposed in first framework 122 of housing 120, and second solar cell 132 is disposed in second framework 124 of housing 120.The 3rd solar cell 133 is disposed in the 3rd framework 126 of housing 120, and with first solar cell 131 against each other.In addition, this group OPTICAL SENSORS comprises that first sensor 141 and second sensor, 142, the first sensors 141 are disposed on the first corner C1 that is adjacent to first framework 122.Second sensor 142 is disposed on the second corner C2 that is adjacent to the 3rd framework 126.The first corner C1 and the second corner C2 lay respectively at the relative both sides of the 4th framework 128 of housing 120.In addition, this group OPTICAL SENSORS also comprises one the 3rd sensor 143, is disposed in the 4th framework 128 between first sensor 141 and second sensor 142.
Shown in Fig. 4 A, contactor control device 100 also comprises a processor 150, is electrically connected each OPTICAL SENSORS.When 10 on object was in display frame, the part light that infrared light supply sent (among the light L1～L3 shown in dotted line at least the two) was blocked by object 10.Processor 150 is according to the received image of OPTICAL SENSORS, and 10 coordinate positions in display frame of judgment object are to export a coordinate signal.Because the solar cell of present embodiment is the infrared light supply of strip; And the OPTICAL SENSORS 131～133 of collocation is one group of infrared light video camera; The image that it received carries out logical operation through touch-control circuit, does not need on existing reflection bar, to form shade, can learn the coordinate position of object 10.
Second embodiment
Please with reference to Fig. 5, it illustrates the schematic top plan view according to the contactor control device of one embodiment of the invention.Forming one group of infrared light supply S1～S2 with two solar cells 134～135 is example, and contactor control device 101 comprises a display 110, two solar cells 134～135 and one group of OPTICAL SENSORS 141～143.Display 110 comprises a housing 120 and a display panel 130.Housing 120 be positioned at display panel 130 around.Each solar cell all is disposed in the framework of housing 120.Each solar cell forms down an infrared light supply in the electroluminescence state, so the quantity of infrared light supply for example is 2, but not as limit.Each OPTICAL SENSORS is disposed in the housing 120, in order to receive the light that corresponding light source sends.
In the present embodiment, each solar cell for example is disposed at respectively in adjacent two frameworks of housing 120 with L shaped battery.Housing 120 for example is tetragonal framework, and it has one first framework 122, one second framework 124, one the 3rd framework 126, one the 4th framework 128, the first corner C1 and one second corner C2.Please with reference to Fig. 5, in detail, first solar cell 134 is disposed in adjacent first framework 122 and second framework 124, and with diagonal on the second corner C2 against each other.Second solar cell 135 is disposed in adjacent second framework 124 and the 3rd framework 126, and with diagonal on the first corner C1 against each other.In addition, this group OPTICAL SENSORS comprises that first sensor 141 and second sensor, 142, the first sensors 141 are disposed on the first corner C1 that is adjacent to first framework 122.Second sensor 142 is disposed on the second corner C2 that is adjacent to the 3rd framework 126.The first corner C1 and the second corner C2 lay respectively at the relative both sides of the 4th framework 128 of housing 120.In addition, this group OPTICAL SENSORS also comprises one the 3rd sensor 143, is disposed in the 4th framework 128 between first sensor 141 and second sensor 142.
As shown in Figure 5, contactor control device 100 also comprises a processor 150, is electrically connected each OPTICAL SENSORS 141～143.When 10 on object was in display frame, the part light that infrared light supply sent (among the light L1～L3 shown in dotted line at least the two) was blocked by object 10.Processor 150 is according to the received image of OPTICAL SENSORS, and 10 coordinate positions in display frame of judgment object are to export a coordinate signal.Because the solar cell of present embodiment is L shaped infrared light supply; And the OPTICAL SENSORS 141～143 of collocation is one group of infrared light video camera; The image that it received carries out logical operation through touch-control circuit, does not need on existing reflection bar, to form shade, can learn the coordinate position of object 10.
The 3rd embodiment
Please with reference to Fig. 6, it illustrates the synoptic diagram according to the contactor control device of one embodiment of the invention.Different with first, second embodiment is that the quantity of the solar cell of present embodiment only has one.For instance, when solar cell is flexual battery thin film, can cut into arbitrary shape, and be attached on the inwall of housing 120 according to the profile of display 110.As shown in Figure 6, solar cell for example with U font cell arrangement in adjacent three frameworks of housing 120.Housing 120 for example is tetragonal framework, and it has one first framework 122, one second framework 124, one the 3rd framework 126, one the 4th framework 128, the first corner C1 and one second corner C2.Please with reference to Fig. 6, in detail, U font battery comprises one first battery part 137, one second battery part 138 and one the 3rd battery part 139 that is connected with each other.The first battery part 137 is disposed in first framework 122 of housing 120, and the second battery part 138 is disposed in second framework 124 of housing 120.The 3rd battery part 139 is disposed in the 3rd framework 126 of housing 120, and with the first battery part 137 against each other.In addition, this group OPTICAL SENSORS comprises that first sensor 141 and second sensor, 142, the first sensors 141 are disposed on the first corner C1 that is adjacent to the first battery part 137.Second sensor 142 is disposed on the second corner C2 that is adjacent to the 3rd battery part 139.The first corner C1 and the second corner C2 lay respectively at the relative both sides of the 4th framework 128 of housing 120.In addition, this group OPTICAL SENSORS also comprises one the 3rd sensor 143, is disposed in the 4th framework 128 between first sensor 141 and second sensor 142.
The contactor control device 102 of relevant the 3rd embodiment, the mode of its touch-control location repeats no more at this shown in first, second embodiment.What deserves to be mentioned is that among above-mentioned each embodiment, the processor 150 coordinate signal of exporting can convert corresponding shows signal via the control circuit of display panel 130 to, and exports display panel 130 to, with display frame.Display panel 130 for example is cold cathode ray display panel, display panels, plasma display or organic LED display panel.Shows signal for example is vernier signal, click signal or towing signal etc.Therefore, the user can carry out touch control operation through display frame.
In addition, above-mentioned each embodiment utilizes the principle of solar battery electroluminescence next luminous, and cooperates OPTICAL SENSORS to carry out the touch-control location.Because solar cell is a line source; And can cut into arbitrary shape (for example strip, L shaped, U font or its combination etc.), therefore, can reduce the existing quantity of using light emitting diode as light source; And need not use reflection bar, to reduce the required cost of assembling and the expense of breakdown maintenance.
In addition; Though above-mentioned each embodiment is an example with three OPTICAL SENSORSs; As long as but have two OPTICAL SENSORSs just can detect the position of object; For example be placed on first sensor and second sensor of first corner and second corner, so sensitivity or accuracy that the quantity of OPTICAL SENSORS can according to when detecting are adjusted.When the quantity of OPTICAL SENSORS is three, can reduce the accuracy that logical operation also can be improved in the dead angle.The quantity of OPTICAL SENSORS is The more the better, is not limited to below three.
In sum, though combine above each embodiment to disclose the present invention, it is not in order to limit the present invention.Be familiar with this operator in the technical field under the present invention, do not breaking away from the spirit and scope of the present invention, can do various changes and retouching.Therefore, protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (8)
1. contactor control device comprises:
Display, this display comprises housing and display panel, this housing be positioned at this display panel around;
One group of solar cell is disposed in this housing, and this group solar cell forms one group of infrared light supply down in the electroluminescence state; And
One group of OPTICAL SENSORS is disposed in this housing, in order to receive the corresponding light that this group infrared light supply is sent.
2. contactor control device as claimed in claim 1; Also comprise processor, being electrically connected should group OPTICAL SENSORS, and at least two light that wherein this group light source sent receive that an object covers and during by this group OPTICAL SENSORS reception; This processor is judged the position at this object place, to export a coordinate signal.
3. contactor control device as claimed in claim 1, wherein this group solar cell has a plurality of strip cell, and this housing has first framework, second framework, the 3rd framework and the 4th framework that links to each other in regular turn, and those strip cell comprise:
First solar cell is disposed in this first framework of this housing;
Second solar cell is disposed in this second framework of this housing; And
The 3rd solar cell is disposed in the 3rd framework of this housing, and the 3rd solar cell and this first solar cell are against each other.
4. contactor control device as claimed in claim 1, wherein this group solar cell has a plurality of L shaped batteries, and this housing has first framework, second framework, the 3rd framework and the 4th framework that links to each other in regular turn, and those L shaped batteries comprise:
First solar cell is disposed in adjacent this first framework and this second framework; And
Second solar cell is disposed in adjacent this second framework and the 3rd framework.
5. contactor control device as claimed in claim 1; Wherein this group solar cell has U font battery; This housing has first framework, second framework, the 3rd framework and the 4th framework that links to each other in regular turn; This U font battery comprises continuous first battery part, second battery part and the 3rd battery part, and this first battery partly is disposed in this first framework of this housing, and this second battery partly is disposed in this second framework of this housing; The 3rd battery partly is disposed in the 3rd framework of this housing, and with this first battery part against each other.
6. like claim 3,4 or 5 described contactor control devices, wherein this group OPTICAL SENSORS is disposed in the 4th framework of this housing.
7. contactor control device as claimed in claim 6; Wherein this housing has first corner of contiguous this first framework and second corner that is adjacent to the 3rd framework; This first corner and this second corner lay respectively at the relative both sides of the 4th framework of this housing; This group OPTICAL SENSORS comprises first sensor and second sensor, and this first sensor configurations is on this first corner, and this second sensor configurations is on this second corner.
8. contactor control device as claimed in claim 7, wherein this group OPTICAL SENSORS also comprises the 3rd sensor, is disposed between this first sensor and this second sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156069XA CN102830852A (en) | 2011-06-13 | 2011-06-13 | Touch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156069XA CN102830852A (en) | 2011-06-13 | 2011-06-13 | Touch device |
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| Publication Number | Publication Date |
|---|---|
| CN102830852A true CN102830852A (en) | 2012-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110156069XA Pending CN102830852A (en) | 2011-06-13 | 2011-06-13 | Touch device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105190463A (en) * | 2013-03-13 | 2015-12-23 | 流量控制有限责任公司 | Methodology to define optimal sun position using the capability provided by smart phone technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201032106A (en) * | 2009-02-23 | 2010-09-01 | Chunghwa Picture Tubes Ltd | Optical touch liquid crystal display device |
| CN201583923U (en) * | 2009-09-11 | 2010-09-15 | 广东威创视讯科技股份有限公司 | Camera-type touch detection device |
| WO2010145038A1 (en) * | 2009-06-18 | 2010-12-23 | Baanto International Ltd. | Systems and methods for sensing and tracking radiation blocking objects on a surface |
-
2011
- 2011-06-13 CN CN201110156069XA patent/CN102830852A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201032106A (en) * | 2009-02-23 | 2010-09-01 | Chunghwa Picture Tubes Ltd | Optical touch liquid crystal display device |
| WO2010145038A1 (en) * | 2009-06-18 | 2010-12-23 | Baanto International Ltd. | Systems and methods for sensing and tracking radiation blocking objects on a surface |
| CN201583923U (en) * | 2009-09-11 | 2010-09-15 | 广东威创视讯科技股份有限公司 | Camera-type touch detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105190463A (en) * | 2013-03-13 | 2015-12-23 | 流量控制有限责任公司 | Methodology to define optimal sun position using the capability provided by smart phone technology |
| CN105190463B (en) * | 2013-03-13 | 2017-04-12 | 流量控制有限责任公司 | Methodology to define optimal sun position using the capability provided by smart phone technology |
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Application publication date: 20121219 |