CN100392579C - Input device - Google Patents

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Publication number
CN100392579C
CN100392579C CNB2005101381196A CN200510138119A CN100392579C CN 100392579 C CN100392579 C CN 100392579C CN B2005101381196 A CNB2005101381196 A CN B2005101381196A CN 200510138119 A CN200510138119 A CN 200510138119A CN 100392579 C CN100392579 C CN 100392579C
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electrostatic capacitance
electrode
common
common electrodes
individual electrode
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CN1815430A (en
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佐藤功
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Alps Alpine Co Ltd
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Alps Electric Co Ltd
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Abstract

To further miniaturize an electronic apparatus and enhance its operability by making it possible to input information for indicating a plurality of functions in the electronic apparatus by the same capacitance sensor. Both common electrodes 9, 10 are disposed so that the respective side rims of both common electrodes 9, 10 face each other, and each individual electrode 11 is disposed along the respective side rims of the common electrodes 9, 10 in a gap between both common electrodes 9, 10. A control part 13 switches its functions depending on if the capacitance is detected by the first common electrode 9 and each individual electrode 11, and if the capacitance is detected by the second common electrode 10 and each individual electrode 11.

Description

Input media
Technical field
The present invention relates to a kind of input media with electrostatic capacitance sensor, wherein said electrostatic capacitance sensor detects the electrostatic capacitance that produces between described electrode and described human body near to or in contact with electrode by human body.
Background technology
In the past, at mobile phone, digital camera or PDA (Personal DigitalAssistants: personal digital assistant) and in the various electronic equipments such as audio frequency apparatus or its telechiric device, input media with the board-like electrostatic capacitance sensor of touch surface is because can slimming and have good reasons such as operating performance, and the device as being used to the operation of carrying out this electronic equipment to described electronic equipment input indication information uses.
For example, in the mobile phone of built-in input media with electrostatic capacitance sensor, the part of the indication information that is used to operate as input and be provided with display part to mobile phone.In addition, electrostatic capacitance sensor comprises the electrode with regulation area, and the substrate that disposes on described electrode and the display part is relative and establish.And when the part of human bodies such as people's hand or finger contacts with described electrode near described electrode or across described substrate, thereby between human body and electrode during the formation electrostatic capacitance, this electrostatic capacitance sensor detects this electrostatic capacitance.And, in case detect this electrostatic capacitance, have the indication information (for example, referring to patent documentation 1,2) of the input media of described electrostatic capacitance sensor to the control part input regulation of mobile phone.
In addition, for example it is also known for a kind of like this input media, this input media is configured to two electrodes relative with described substrate, and in a single day passes through two electrode detection to electrostatic capacitance, just the control part of mobile phone is imported two different indication informations.
But, even be provided with the input media of two electrodes as described above, when using same electrostatic capacitance sensor, also can only import the indication information of same functions such as for example selecting information or scrolling information to mobile phone, and when the indication information of other functions of input, other sensor must be set.Therefore, in mobile phone of wishing further miniaturization in recent years etc., owing to there is the problem that is difficult to realize miniaturization in the area for cutting that is provided with of sensor.
Patent documentation 1 is meant Japanese Patent Application Laid-Open 2004-146099 communique, and patent documentation 2 is meant Japanese Patent Application Laid-Open 2004-201175 communique.
Summary of the invention
The present invention finishes in view of these problems, its purpose is to provide a kind of input media with electrostatic capacitance sensor, this input media can utilize same electrostatic capacitance sensor just can import the indication information of multiple function to electronic equipment, thereby can realize the further miniaturization of electronic equipment, and improve operating performance.
In order to reach described purpose, input media with electrostatic capacitance sensor involved in the present invention is characterised in that, it is a kind of input media with the electrostatic capacitance sensor that is used to detect the electrostatic capacitance that produces between described electrode and described human body near to or in contact with electrode by human body, have two common electrodes and a plurality of individual electrode as described electrode, dispose described two common electrodes, so that each side of described two common electrodes is relative, and in the gap between described two common electrodes along described each individual electrode of described each side alignment arrangements of described two common electrodes, have control part, this control part comprises the test section of the electrostatic capacitance that detects described two common electrodes and described each individual electrode, and according to the judging part of selecting different indication informations from the electrostatic capacitance data of described test section; Described control part to detect described human body near to or in contact with and described two common electrodes and described each individual electrode of the electrostatic capacitance that causes are differentiated, select described two common electrodes that determine and the pairing indication information of combination between described each individual electrode.
In addition, described control part also can be according to based on a common electrode in described two common electrodes and described each indivedual electrode detection situation to described electrostatic capacitance, with based on another common electrode and described each indivedual electrode detection situation to described electrostatic capacitance, switch described indication information.
And then, described control part also can be when arriving described electrostatic capacitance by described two common electrodes and described each indivedual electrode detection, relatively based on the detected described electrostatic capacitance of described two common electrodes, and be judged as by described electrostatic capacitance big described common electrode and described each indivedual electrode detection and arrived described electrostatic capacitance.
By input media involved in the present invention, according to the position of the variation that detects the electrostatic capacitance in two common electrodes and each individual electrode, import input media such as the different indication information of function.Thus, can utilize an electrostatic capacitance sensor just can import the indication information of multiple function.
In addition, when detecting electrostatic capacitance by two common electrodes, judge is to have detected electrostatic capacitance in detecting the common electrode of bigger electrostatic capacitance, thereby both just on adjacent unplanned common electrode, detected electrostatic capacitance, and also can import the indication information of expectation reliably owing to the approaching of human body.
In addition, another input media involved in the present invention is characterised in that, it is a kind of input media with the electrostatic capacitance sensor that is used to detect the electrostatic capacitance that produces between described electrode and described human body near to or in contact with electrode by human body, have common electrode and a plurality of individual electrode as described electrode, and along described each individual electrode of the side alignment arrangements of described common electrode, have control part, this control part comprises the test section of the electrostatic capacitance that detects described common electrode and described each individual electrode, and according to the judging part of selecting different indication informations from the electrostatic capacitance data of described test section; Described control part according to the size of detected described electrostatic capacitance in described common electrode and described individual electrode and in described common electrode and a plurality of described individual electrode the size of detected described electrostatic capacitance, function is switched to selection information or scrolling information.
In addition, described control part also can switch described function according to detected described electrostatic capacitance in any of described common electrode and described each individual electrode greater than the situation of the electric capacity of regulation with less than the situation of the electric capacity of regulation.
By above-mentioned input media involved in the present invention, according to the size of detected electrostatic capacitance in common electrode and each individual electrode, import input media such as the different indication information of function.Thus, can utilize an electrostatic capacitance sensor just can import the indication information of multiple function.
As mentioned above, by input media involved in the present invention, owing to can utilize an electrostatic capacitance sensor just can import the indication information of multiple function, so, even in multi-functional electronic equipment, also need not to be provided with a plurality of sensors, can realize the miniaturization of electronic equipment thus.In addition, be used for both just human body such as moveable finger on a large scale not of part of the indication information of operating electronic equipment in input, also can utilize an electrostatic capacitance sensor to import the indication information of difference in functionality, therefore can improve the operating performance of input media.
Description of drawings
Fig. 1 is the mode view of a part that the electronic equipment of the input media of having used present embodiment is shown;
Fig. 2 (a) is the mode view that the electrostatic capacitance sensor of Fig. 1 is shown; (b) be the mode sectional drawing of the A-A on edge (a);
Fig. 3 (a) is other mode views that the electrostatic capacitance sensor of Fig. 1 is shown; (b) be the mode sectional drawing of the B-B on edge (a);
Fig. 4 is the block diagram that the control part of Fig. 1 is shown;
Fig. 5 is the process flow diagram of input step that the indication information of the input media that has electrostatic capacitance sensor among Fig. 1 is shown;
Fig. 6 is another mode view of a part that the electronic equipment of Fig. 1 is shown;
Fig. 7 (a) is the mode view that the electrostatic capacitance sensor in the input media of other embodiments involved in the present invention is shown; (b), (c) is the mode sectional drawing along the C-C of (a);
Fig. 8 (a) is the mode view that the electrostatic capacitance sensor in the input media of other embodiments involved in the present invention is shown; (b), (c) is the mode sectional drawing along the D-D of (a);
Fig. 9 is the process flow diagram that the input step of the indication information in the input media of Fig. 7 is shown.
Embodiment
Below, an embodiment of input media involved in the present invention is described referring to figs. 1 through Fig. 9.
Here, in the present embodiment, utilize mobile phone that the electronic equipment that is suitable for the input media with electrostatic capacitance sensor is described.
Fig. 1 is the mode view of a part that the mobile phone of the input media of having used present embodiment is shown.As shown in Figure 1, in described mobile phone 1, be provided with display part 2 is used for indication information that mobile phone 1 is operated as input part.The transparency carrier 3 that is made of glass etc. is configured on the display part 2.
The display device 5 that is made of display panels etc. is set on the position relative with the established part of display part in the inside of mobile phone 1.Display device 5 can show the general chart picture at the various operations of mobile phone 1.And each operation that shows in a plurality of action buttons 6 and the display device 5 is presented near the allocation position of display device 5 in the display part 2 accordingly side by side.
Shown in Fig. 2 (a) and (b) and Fig. 3 (a) and (b), the input media 8 with electrostatic capacitance sensor 15 has first common electrode 9 and second common electrode 10 of rectangular shape, and a plurality of individual electrode 11 of the rectangular shape corresponding with each operation.Two common electrodes are formed to have and whole suitable length dimensions of length dimension of the allocation position of action buttons 6, and each side that is configured to two common electrodes is relative, in addition, each action button 6 of first common electrode 9 in the display part 2 and column direction and disposing, and relative with the part of the demonstration of each action button 6.
Each individual electrode 11 is formed the length dimension suitable with the length dimension of each action button 6, and in the gap of two common electrodes along each side configuration of two common electrodes, and relative with the part of the demonstration of each action button 6 respectively.
In addition, two common electrodes 9,10 and each individual electrode 11 are not limited to shape and the allocation position in the present embodiment, so long as side closely disposed adjacent get final product.For example, second common electrode 10 that also can dispose ring-type is so that its peripheral relative with circular first common electrode 9, and the side peripheral and second common electrode 10 along first common electrode 9 disposes each individual electrode 11 side by side in the gap of two common electrodes 9,10.
As shown in Figure 4, input media 8 with electrostatic capacitance sensor 15 is provided with the control part 13 of each one that is used for control input device 8, described control part 13 is provided with test section 14, and this test section 14 is used to detect the variation for the electrostatic capacitance of two common electrodes 9,10 and each individual electrode 11.Constituted electrostatic capacitance sensor 15 by these two common electrodes 9,10 and each individual electrode 11 and test section 14.
In case near two common electrodes 9,10 and each individual electrode 11, electrostatic capacitance sensor 15 will detect the electrostatic capacitance that forms by test section 14 to the part of human bodies 16 such as people's hand or finger between human body 16 and two common electrodes 9,10 and each individual electrode 11 across transparency carrier 3.Then, electrostatic capacitance sensor 15 will detect two common electrodes 9,10 of electrostatic capacitance and the data of each individual electrode 11 by test section 14, and the data of the electrostatic capacitance that is detected are input in the judging part 18.
Judging part 18 is discerned two common electrodes 9,10 and each individual electrode 11 that detects electrostatic capacitance based on the data of the electrostatic capacitance of being imported, and according to the position that detects electrostatic capacitance, promptly detect two common electrodes 9,10 and each individual electrode 11 of electrostatic capacitance, to mobile phone 1 input input media 8 such as the different indication information of function.In the present embodiment, when detecting electrostatic capacitance by the other one by one electrode 11 in first common electrode 9 and each individual electrode 11, the selection information that judging part 18 is imported the operation that is used for selection operation button 6 is as indication information, and wherein said action button 6 is corresponding with the individual electrode 11 that is detected electrostatic capacitance.On the other hand, when detecting electrostatic capacitance by second common electrode 10 and each individual electrode 11, the scrolling information of importing the demonstration that is used for roll display device 5 is as indication information.
In addition, when detecting electrostatic capacitance by two common electrodes 9,10 and each individual electrode 11, judging part 18 is relatively by two common electrode 9,10 detected electrostatic capacitances, and to be judged as be that common electrode 9,10 and individual electrode 11 by the big side of electrostatic capacitance detects electrostatic capacitance.Then, judging part 18 is to the control part 20 input selection information or the scrolling informations of each one of control mobile phone 1.
Next, the effect to present embodiment describes.
At first, as shown in Figure 5, when the operator of mobile phone 1 with human body 16 during near action button 6 (ST1), electrostatic capacitance sensor 15 detects the variation (ST2) of the electrostatic capacitance in two common electrodes 9,10 and each individual electrode 11 by test section 14.
Then, electrostatic capacitance sensor 15 from test section 14 after judging part 18 input electrostatic capacitances change first common electrode 9 and the data of individual electrode 11, and data of the electrostatic capacitance that is changed (ST3).
Here, judging part 18 is based on each data from test section 14, judge shown in Fig. 2 (a) and (b) like that great changes have taken place in the electrostatic capacitance in the other one by one electrode 11 in first common electrode 9 and each individual electrode 11 near electrostatic capacitance sensor 15 by human body 16 time (in ST4, being "Yes"), be used for the selection information of the operation of selection operation button 6 to control part 20 input of mobile phone 1, this action button 6 as shown in Figure 1 with the individual electrode 11 corresponding (ST5) that is detected electrostatic capacitance.Thus, the control part 20 of mobile phone 1 is selected the control of the operation of the action button 6 corresponding with other electrode one by one 11.
In addition, judging part 18 like that (is "No" by human body 16 when great changes have taken place the electrostatic capacitance in second common electrode 10 and each individual electrode 11 near electrostatic capacitance sensor 15 judging in ST4 shown in Fig. 2 (a) and (b), be "Yes" in ST6), be used for the scrolling information (ST7) of the display frame of roll display device 5 to control part 20 input of mobile phone 1.Thus, as shown in Figure 6, the control part 20 of mobile phone 1 carries out the control of the display frame in the roll display device 5.
And, judging part 18 is based on each data from test section 14, when judging electrostatic capacitance in the other one by one electrode 11 in two common electrodes 9,10 and each individual electrode 11 great changes having taken place (in ST6, being "No"), judge that great changes (ST8) have all taken place arbitrary electrostatic capacitance in two common electrodes 9,10.Then, (in ST8, be "Yes") under the bigger situation of the variation of the electrostatic capacitance in judging first common electrode 9, be used for the selection information of the operation of selection operation button 6 to control part 20 input of mobile phone 1, this action button 6 is corresponding with the individual electrode 11 that is detected static capacity.On the other hand, (in ST8, be "No") under the bigger situation of the variation of the electrostatic capacitance in judging second common electrode 10, be used for the scrolling information (ST10) of the display frame of roll display device 5 to control part 20 inputs of mobile phone 1.
According to present embodiment, according to the position of the variation that detects the electrostatic capacitance in two common electrodes 9,10 and each individual electrode 11, import input media 8 such as the different indication information of function.That is, during electrostatic capacitance in detecting first common electrode 9, when input selection information, electrostatic capacitance in detecting second common electrode 10, the input scrolling information.Thus, utilize an electrostatic capacitance sensor 15 just can import the indication information of multiple function, thereby the input media 8 with this electrostatic capacitance sensor 15 can be brought into play multiple function.
Thus, can utilize an electrostatic capacitance sensor 15 to import the indication information of multiple function owing to have the input media 8 of this electrostatic capacitance sensor 15, so,, can realize the miniaturization of mobile phone 1 thus even in multi-functional mobile phone 1, also need not to be provided with a plurality of sensors.In addition, though on display part 2 mobile human body 16 on a large scale not, also can utilize an electrostatic capacitance sensor 15 to import the indication information of difference in functionality, therefore can improve the operating performance of input media 8 with electrostatic capacitance sensor 15.
In addition, when detecting electrostatic capacitance by two common electrodes 9,10, owing to be judged as in the common electrode 9,10 that detects bigger electrostatic capacitance and detected electrostatic capacitance, so, both, also can import the indication information of expectation reliably just owing to the approaching of human body 16 causes detecting electrostatic capacitance in adjacent unplanned common electrode 9,10.
Next utilize Fig. 7 (a) and (b), (c) that second embodiment involved in the present invention is described.
Here, use identical label to describe for the structure identical with first embodiment, and detailed.
Fig. 7 (a) is the mode view that the electrostatic capacitance sensor 15 in the related input media of second embodiment 8 is shown; Fig. 7 (b), (c) are the mode sectional drawings along the C-C of (a).
Shown in Fig. 7 (a) and (b), (c), input media 8 with electrostatic capacitance sensor 15 have a common electrode 12 and with display part 2 on the corresponding a plurality of individual electrode 11 of each operation that show, each action button 6 of common electrode 12 on the display part 2 and the column direction configuration, and relative with the part of the demonstration of each action button 6.
Each individual electrode 11 is along the side setting of common electrode 12, and relative with the part of the demonstration of each action button 6 respectively.
Judging part 18 is with reference to common electrode of having imported from test section 14 12 and the electrostatic capacitance each individual electrode 11, and according to the size of detected electrostatic capacitance come to mobile phone 1 input input media 8 such as the different indication information of function.In the present embodiment, judging part 18 is by the other one by one electrode 11 detected electrostatic capacitances in common electrode 12 and each individual electrode 11 during all greater than the electric capacity of regulation, the selection information of importing the operation that is used for selection operation button 6 is as indication information, and this action button 6 is corresponding with the individual electrode 11 that is detected electrostatic capacitance.On the other hand, when by common electrode 12 or all individual electrode 11 detected electrostatic capacitances during less than the electric capacity of regulation, input is used for the scrolling information of display image of roll display device 5 as indication information.
In addition, the allocation position of common electrode 12 and each individual electrode 11 is not limited to present embodiment.
For example, shown in Fig. 8 (a) and (b), (c), also each individual electrode 11 can be configured to make side by side individual electrode relative with the part of the demonstration of each action button 6, and formation common electrode 12 is and the suitable length dimension of length dimension whole action buttons 6 and column direction, and dispose this common electrode 12 and surround the periphery of each individual electrode 11, and its part is relative with the part of the demonstration of each action button 6.
Next, the effect to second embodiment describes.
As shown in Figure 9, when the operator of mobile phone 1 with human body 16 during near action button 6 (ST11), test section 14 detects the variation (ST12) of the electrostatic capacitance in common electrodes 12 and each individual electrode 11.
Here, the common electrode 12 after test section 14 changes electrostatic capacitance and the data of individual electrode 11, and their electrostatic capacitance inputs to judging part 18 (ST13).
Here, judging part 18 is based on each data from test section 14, when judging electrostatic capacitance behind the changing in the other one by one electrode 11 in common electrode 12 and each individual electrode 11 near electrostatic capacitance sensor 15 like that shown in Fig. 7 (b) (in ST14, being "Yes") greater than the electric capacity of regulation by human body 16, be used for the selection information of the operation of selection operation button 6 to control part 20 input of mobile phone 1, the individual electrode 11 corresponding (ST15) that this action button 6 and static capacity change.
In addition, judging part 18 is for example when judging electrostatic capacitance behind the changing near electrostatic capacitance sensor 15 by human body 16 like that shown in Fig. 7 (c) less than the electric capacity of regulation in common electrode 12, perhaps during less than the electric capacity of regulation (be "No"), be used for the scrolling information (ST16) of the display frame of roll display device 5 to control part 20 input of mobile phone 1 in ST14 by all individual electrode 11 detected electrostatic capacitances.
According to present embodiment, have according to the size input of detected electrostatic capacitance in common electrode 12 and each individual electrode 11 electrostatic capacitance sensor 15 input media 8 such as the different indication information of function.That is, the electrostatic capacitance after changing in common electrode 12 and other one by one electrode 11 is during greater than the electric capacity of regulation, input selection information.In addition, the electrostatic capacitance after changing in common electrode 12 is during less than the electric capacity of regulation, and the electrostatic capacitance after perhaps changing in all individual electrode 11 is during less than the electric capacity of regulation, the input scrolling information.Thus, utilize an electrostatic capacitance sensor 15 just can import the indication information of multiple function.
Thus, owing to utilize an electrostatic capacitance sensor 15 just can import the indication information of multiple function, so, even in multi-functional mobile phone 1, also need not to be provided with a plurality of sensors, can realize the miniaturization of mobile phone 1 thus.In addition, though on display part 2 mobile human body 16 on a large scale not, also can utilize an electrostatic capacitance sensor 15 to import the indication information of difference in functionality, therefore can improve the operating performance of input media 8.
In addition, the invention is not restricted to above-mentioned embodiment, can carry out various changes as required.
For example, also can work as and detect in the first embodiment when great changes have taken place electrostatic capacitance in a plurality of individual electrode 11 in each individual electrode 11, and the electrostatic capacitance after changing in a plurality of individual electrode 11 in second embodiment is during greater than the electric capacity of regulation, the size of electrostatic capacitance relatively, and judge in the individual electrode 11 that detects bigger electrostatic capacitance and detected electrostatic capacitance.Thus, both, also can import the indication information of expectation reliably just owing to the approaching of human body 16 causes detecting electrostatic capacitance in adjacent unplanned individual electrode 11.
In addition, in second embodiment,, but be not limited thereto, also can import the indication information of multiple function according to various patterns when detected electrostatic capacitance in common electrode 12 and other one by one electrode 11 during, input selection information greater than the electric capacity of regulation.

Claims (5)

1. input media has the electrostatic capacitance sensor that detects electrostatic capacitance, and wherein said electrostatic capacitance is the electrostatic capacitance that produces between described electrode and described human body near to or in contact with electrode by human body, and this input media is characterised in that,
Have two common electrodes and a plurality of individual electrode as described electrode, dispose described two common electrodes, so that each side of described two common electrodes is relative, and in the gap between described two common electrodes along described each individual electrode of described each side alignment arrangements of described two common electrodes
Have control part, this control part comprises the test section of the electrostatic capacitance that detects described two common electrodes and described each individual electrode and according to the judging part of selecting different indication informations from the electrostatic capacitance data of described test section;
Described control part to detect described human body near to or in contact with and described two common electrodes and described each individual electrode of the electrostatic capacitance that causes are differentiated, select described two common electrodes that determine and the pairing indication information of combination between described each individual electrode.
2. input media according to claim 1, it is characterized in that, described control part switches described indication information according to arriving the situation of described electrostatic capacitance by a common electrode in described two common electrodes and described each indivedual electrode detection to the situation of described electrostatic capacitance with by another common electrode and described each indivedual electrode detection.
3. input media according to claim 2, it is characterized in that, described control part is when arriving described electrostatic capacitance by described two common electrodes and described each indivedual electrode detection, relatively by the detected described electrostatic capacitance of described two common electrodes, and be judged as by described electrostatic capacitance big described common electrode and described each indivedual electrode detection and arrived described electrostatic capacitance.
4. input media has the electrostatic capacitance sensor that detects electrostatic capacitance, and wherein said electrostatic capacitance is the electrostatic capacitance that produces between described electrode and described human body near to or in contact with electrode by human body, and this input media is characterised in that,
Have common electrode and a plurality of individual electrode as described electrode, and along described each individual electrode of the side alignment arrangements of described common electrode,
Have control part, this control part comprises the test section of the electrostatic capacitance that detects described common electrode and described each individual electrode and according to the judging part of selecting different indication informations from the electrostatic capacitance data of described test section;
Described control part according to the size of detected described electrostatic capacitance in described common electrode and described individual electrode and in described common electrode and a plurality of described individual electrode the size of detected described electrostatic capacitance, function is switched to selection information or scrolling information.
5. input media according to claim 4, it is characterized in that, described control part greater than the situation of regulation electric capacity with less than the situation of regulation electric capacity, switches described function according to detected described electrostatic capacitance in any of described common electrode and described each individual electrode.
CNB2005101381196A 2005-02-02 2005-12-29 Input device Expired - Fee Related CN100392579C (en)

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JP5366051B2 (en) * 2009-04-20 2013-12-11 株式会社ジャパンディスプレイ Information input device, display device
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