CN204740577U - Capacitanc touch devices - Google Patents
Capacitanc touch devices Download PDFInfo
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- CN204740577U CN204740577U CN201520395416.8U CN201520395416U CN204740577U CN 204740577 U CN204740577 U CN 204740577U CN 201520395416 U CN201520395416 U CN 201520395416U CN 204740577 U CN204740577 U CN 204740577U
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- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000006698 induction Effects 0.000 description 18
- 230000035945 sensitivity Effects 0.000 description 10
- 230000003044 adaptive effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The utility model discloses a capacitanc touch devices includes a substrate, a plurality of first electrodes, each first electrode is provided with plural branch electrode along first direction extension and interval ground in a second direction, a plurality of second electrodes, each second electrode is followed it is regional that the extension of second orientation just includes a plurality of recesses, and a plurality of virtual blocks, set up in a plurality of groove area intra -areas and contactless a plurality of second electrodes, wherein, the first direction with second direction mutually perpendicular, a plurality of first electrodes with a plurality of second electrodes set up respectively in on the different surfaces of substrate, and the part the projected area of a plurality of first electrodes, part the projected area and the part of plural number branch electrode the projected area of a plurality of second electrodes forms a crossover projected area to carry on one and each other hold the work of formula touch -control.
Description
Technical field
The utility model relates to a kind of capacitive touch device, particularly relates to a kind of capacitive touch device being carried out adaptive lifting sensitivity by different electrode structure design.
Background technology
Touch control electrode can detect the touch-control action in an active area or viewing area, such as detect the position of touch whether having a finger presses Touch Screen and correspondence thereof, part contactor control device also can increase its touch-control identification usefulness in conjunction with other touch-control modules (such as a pointer).In addition, common contactor control device includes resistance-type, condenser type, infrared-type or surface acoustic wave type, and wherein, capacitive contactor control device is main product now.The structure of capacitive touch device often utilizes electrically conducting transparent material, such as tin indium oxide (ITO), and on a substrate, form specific induction electrode figure, such as array kenel is become also to reach capacitive coupling to each other by X-axis electrode with Y-axis electrode spread, touch once there be object or close contactor control device, the capacitance of contactor control device on ad-hoc location will change to some extent, and the generation of touch-control work is judged whether by the change of capacitance, this position of touch corresponding to touch-control work can be located simultaneously.
In addition, common capacitive touch control techniques realizes the function of multi-point touch by mutual tolerance formula (mutual capacitance) induction work.But, for mutual tolerance formula electrode structure, its signal to noise ratio (S/N ratio) (SNR) will be proportional to the driving voltage of an emitting electrode, improves signal to noise ratio (S/N ratio) if want, then need the driving voltage (more than 10V) improving emitting electrode, it will correspond to the IC processing procedure of high cost.In addition, the pitch that electrode is reduced in the many employings of common mutual tolerance formula touch technology increases the sensing resolution of an induction electrode, but such practice not only needs to set up more induction electrode, also increases the reaction time of sensing simultaneously; Moreover, the position of touch that on contact panel, distance induction electrode is far away, the capacitance signal produced due to it is more weak, and it is poor by resulting in the station-keeping ability that on those positions, contactor control device provides, and for more this problem can be highlighted in the design of ultra-thin contact panel.
Utility model content
Therefore, namely fundamental purpose of the present utility model is that providing a kind of carrys out by different electrode structure design the capacitive touch device that adaptive promotes sensitivity.
The utility model discloses a kind of capacitive touch device, includes a substrate; Multiple first electrode, compartment of terrain is arranged on described substrate, wherein each first electrode be along one first direction extend and compartment of terrain is provided with plural branch electrodes in a second direction; Multiple second electrode, compartment of terrain is arranged on described substrate, and wherein each second electrode extends along described second direction and includes multiple recess region; And multiple virtual block, to be arranged in described multiple recess region and not contact described multiple second electrode, being used for shielding at least one noise signal; Wherein, described first direction is mutually vertical with described second direction, described multiple first electrode and described multiple second electrode are arranged on the different surfaces of described substrate respectively, and the projected area of the projected area of described multiple first electrode of part, the projected area of the described plural branch electrodes of part and described multiple second electrode of part forms a crossover projected area, to carry out a mutual tolerance formula touch-control job.
Accompanying drawing explanation
Fig. 1 is the partial schematic diagram of the utility model one capacitive touch device.
Fig. 2 is the partial schematic diagram of the utility model multiple first electrode in the first plane.
Fig. 3 is the partial schematic diagram of the utility model multiple second electrode and multiple virtual block in the second plane.
Wherein, description of reference numerals is as follows:
1 capacitive touch device
R1 ~ R3 first electrode
R1_B1 ~ R1_B7, R2_B1 ~ R2_B7, branch electrodes
R3_B1～R3_B7
T1 ~ T3 second electrode
T1_H1 ~ T1_H8 recess region
H1, H2 first recess region
The virtual block of DB
SB substrate
Embodiment
Some vocabulary is employed to censure specific assembly in the middle of instructions and claim.Person with usual knowledge in their respective areas should understand, and same assembly may be called with different nouns by manufacturer.This specification and claims are not used as with the difference of title the mode distinguishing assembly, but are used as the benchmark of difference with assembly difference functionally." comprise/comprise " mentioned in the middle of instructions and claim is in the whole text an open term, therefore should be construed to " comprise but be not limited to ".In addition, " couple " word comprise directly any at this and be indirectly electrically connected means.Therefore, if describe a first device in literary composition to be coupled to one second device, then represent this first device and can be directly connected in this second device, or be indirectly connected to this second device by other devices or connection means.
Please refer to Fig. 1, Fig. 1 is the partial schematic diagram of the utility model one capacitive touch device 1.As shown in Figure 1, capacitive touch device 1 in the present embodiment only schematically draws the proxy component in partial structurtes, namely capacitive touch device 1 includes a substrate S B, first electrode R1 ~ R3, second electrode T1 ~ T3 and multiple virtual block DB, wherein the first electrode is an induction electrode, and the second electrode is an emitting electrode, and both quantity is only exemplary illustrated at this, further, by the matrix structure set-up mode of multiple induction electrode and multiple emitting electrode, capacitive touch device 1 can carry out a mutual tolerance formula touch-control job according to a capacitance variation amount, with correspondence judge with location one touch control object close to pressing capacitive touch device 1.Certainly, to arrange in pairs or groups other working methods, capacitive touch device 1 in the present embodiment also may include other functional assemblies, such as a control module, a power supply driver, a temporary storage module or corresponding transmission line etc., those functional assemblies should be known in the art and non-the utility model for discuss utility model emphasis, be not repeated herein it.Certainly, in other embodiments, capacitive touch device 1 also can be integrated with another display device or electronic installation mutually, to include a flexible circuit board, a light guide plate, a backlight module, a display panel or other digital control modules etc. further, be not used to limit category of the present utility model.
Specifically, substrate S B in the present embodiment is arranged in an XY plane, and include that first direction is parallel to Y-axis, second direction is parallel to X-axis, wherein first direction and second direction are mutually vertical, and substrate S B includes one first plane and one second plane, and the first plane and the second plane are all parallel to XY plane.Accordingly, induction electrode in the present embodiment such as first electrode R1 ~ R3 can be arranged in first plane of substrate S B in compartment of terrain, each first electrode extends along first direction, and compartment of terrain is provided with plural branch electrodes in second direction, such as the first electrode R1 includes branch electrodes R1_B1 ~ R1_B7, first electrode R2 includes branch electrodes R2_B1 ~ R2_B7 and the 3rd electrode R3 includes branch electrodes R3_B1 ~ R3_B7, wherein numeral 7 is also revised as other any positive integers adaptive, namely in the present embodiment, the distance adaptive ground of every two branch electrodes carries out adjusting or changing, be not used to limit category of the present utility model.
Please refer to Fig. 2, Fig. 2 is the partial schematic diagram of the utility model multiple first electrode in the first plane.As shown in Figure 2, each first electrode in the present embodiment is a main body and forms a long column block, and the multiple branch electrodes on each first electrode are an attached body and formation one short column block, and each long column block and each short column block all have a width to be 0.3 millimeter (mm).In addition, multiple branch electrodes that in the present embodiment, each first electrode comprises all include different horizontal lengths, namely multiple first electrode the horizontal length that comprises between adjacent two branch electrodes neither identical, make the present embodiment may correspond to the horizontal length of those branch electrodes of adjustment, adjust the sensitivity of capacitive touch device 1 for touch-control work with adaptive.
Please refer to Fig. 3, Fig. 3 is the partial schematic diagram of the utility model multiple second electrode and multiple virtual block in the second plane.As shown in Figures 1 and 3, emitting electrode in the present embodiment such as second electrode T1 ~ T3 can be arranged in second plane of substrate S B in compartment of terrain, and each second electrode extends along second direction, and include multiple recess region, such as the second electrode T1 includes recess region T1_H1 ~ T1_H8, and every two recess region also interval one spacing distance, as recess region T1_H1 and recess region T1_H2 forms first row and secondary series for being arranged above and below, simultaneously, recess region T1_H3, recess region T1_H5, recess region T1_H7 all compartment of terrain is arranged at first row, and recess region T1_H4, recess region T1_H6, recess region T1_H8 also compartment of terrain is arranged at secondary series, accordingly, first row in the present embodiment and second recess region of being disbursed from the cost and expenses is that upper and lower mirror is arranged, and the recess region of different lines does not contact indirectly, and also do not contact between the different recess region of same column, symmetrical generation second electrode T1 ~ T3 is made to facilitate, certainly, the set-up mode of those second electrodes T1 ~ T3 also can form unsymmetric structure, be not used to limit category of the present utility model.
In addition, the multiple virtual block DB in the present embodiment can be arranged at multiple recess region of second electrode T1 ~ T3, and multiple virtual block DB does not contact multiple second electrode.In other words, multiple recess region that multiple virtual block DB in the present embodiment is adjacent are also apart from another spacing distance, make multiple virtual block DB can electrical isolation in second electrode T1 ~ T3, accordingly, the present embodiment can utilize second electrode T1 ~ T3 and multiple virtual block DB, be used for shielding at least one noise signal coming from other functional assemblies, and a separation layer need not be additionally set to increase a solid thickness of capacitive touch device 1.Preferably, in the present embodiment, the spacing distance of the adjacent multiple recess region of multiple virtual block is 0.3mm, and also can arrange one or more virtual block in each recess region, and every two virtual area interblocks have another spacing distance to be also 0.3 millimeter.
In the case, in the present embodiment, multiple first electrodes (as first electrode R1 ~ R3) of capacitive touch device 1 are arranged on the different surfaces of substrate S B respectively with multiple second electrode (as second electrode T1 ~ T3), and the projected area of the projected area of multiple first electrode of part (as first electrode R1 ~ R3), the projected area of the plural branch electrodes of part (as branch electrodes R1_B2, R2_B2, R3_B2) and multiple second electrode of part (as second electrode T1 ~ T3) forms a crossover projected area, to carry out a mutual tolerance formula touch-control job.In other words, in the present embodiment in every three branch electrodes the projected area crossover of one (as branch electrodes R1_B2) in the projected area of multiple second electrode, and (as branch electrodes R1_B1 both other, R1_B3) projected area crossover between adjacent two the second electrodes (as second electrode T1 ~ T2) the one first recess region H1 that comprises, the projected area of H2, make multiple first electrode, between multiple branch electrodes and multiple second electrode, the projected area scope of mutual crossover can significantly reduce, carry out the low mutual tolerance value reduced between induction electrode and emitting electrode of adaptive.When there being a touch control object pressing capacitive touch device 1, the pressing due to touch control object will cause a mutual tolerance value variable quantity sharply to increase, and the touch-control working sensitivity of capacitive touch device 1 be may correspond to and significantly improve.
In addition, in the present embodiment, in order to strengthen the mutual tolerance formula touch-control work between induction electrode and emitting electrode, be compared to other projected areas and fail crossover in the branch electrodes of the projected area of multiple second electrode, this projected area can will have longer horizontal length in the branch electrodes of the projected area of multiple second electrode by crossover, namely the horizontal length of branch electrodes R1_B2 is longer than branch electrodes R1_B1, the horizontal length of R1_B3, this designs also adaptive increases the touch-control working sensitivity of capacitive touch device 1, be not used to limit category of the present utility model as the difference in length between branch electrodes.
Refer again to Fig. 1 and Fig. 3, in the present embodiment, adjacent two emitting electrodes include the first recess region H1, H2, and the projected area crossover of the first recess region H1, H2 is in the projected area of branch electrodes R1_B1, R1_B3, the projection crossover area between branch electrodes R1_B1, R1_B3 and emitting electrode (as second electrode T1 ~ T3) is made to may correspond to minimizing.In addition, multiple recess region of each second electrode (as the second electrode T1) also include the second recess region (i.e. recess region T1_H1, T1_H2, T1_H7, T1_H8) with the 3rd recess region (i.e. recess region T1_H3, T1_H4, T1_H5, T1_H6), wherein only be provided with single virtual block DB in each second recess region, and each the 3rd recess region is provided with two virtual block DB, making to be arranged at multiple virtual block DB in the second recess region and the 3rd recess region can the crossover major part area of the second recess region and the area of the 3rd recess region, and those virtual block DB do not contact the second recess region and the 3rd recess region.In other words, the virtual block DB in the present embodiment fills up the area corresponding to each recess region as much as possible, when making user's mutual capacitance formula contactor control device 1, can not carry out its related work of interfere with or compromise because of the printing opacity of those groove areas.Certainly, the magnitude setting of the magnitude setting of the recess region of illustrating in the present embodiment and set-up mode or virtual block and size etc. are only exemplary illustrated, those skilled in the art also may correspond to quantity and the set-up mode of those recess region of amendment and virtual block, and are not used to limit category of the present utility model.
In the case, can multiple first electrodes of crossover mutually by these projected areas, multiple branch electrodes and multiple second electrode, when touch control object pressing capacitive touch device 1, the present embodiment is except utilizing the crossover projected area internal induction electrode mutual tolerance value variable quantity that produce corresponding to emitting electrode to carry out except the work of mutual tolerance formula touch-control, because the touch-control working sensitivity of capacitive touch device in the present embodiment 1 is for significantly to promote, capacitive touch device 1 in the present embodiment also can carry out an anticipation job in advance, namely the touch-control working sensitivity of capacitive touch device 1 has been used for detecting whether there is an object just close to this capacitive touch device 1.If have object just close to capacitive touch device 1, then anticipation work also may correspond to the mutual tolerance formula touch-control work of start-up capacitance formula contactor control device 1, to increase the reaction time of capacitive touch device 1 and the degree of accuracy improving located in connection work, this also belongs to category of the present utility model.
Moreover, because in the present embodiment, the width of the first electrode and its branch electrodes is only 0.3mm, corresponding to adjacent two the first electrodes one induction spacing (Sensor Pitch) is adjusted adaptive, such as, when being adjusted to 4.0mm ~ 4.3mm, one touch-control module (such as a pointer) that capacitive touch device 1 and a tip width can be allowed to equal 1.0mm carries out the work of mutual tolerance formula touch-control, and when being adjusted to below 4.0mm, the touch-control module that capacitive touch device 1 can be less than 1.0mm with a tip width carries out the work of mutual tolerance formula touch-control, make the range of application of capacitive touch device 1 also can carry out corresponding elasticity by the adjustment of induction spacing to change, this also belongs to category of the present utility model.
Because the present embodiment revises the first electrode and its branch electrodes, the set-up mode of the second electrode and its recess region and virtual area interblock and usage quantity by adaptive, the touch-control working sensitivity of the capacitive touch device of the present embodiment can have been allowed significantly to promote, simultaneously by the isolation work of emitting electrode and virtual block, also can block the noise signal from other modules, reduce the solid thickness of capacitive touch device with correspondence.In addition, because the width of induction electrode and its branch electrodes can be contracted to 0.3mm, induction spacing again between every two induction electrodes of corresponding adjustment is below 4.0mm, the collocation of the capacitive touch device of the present embodiment can be allowed to use tip width to be less than the pointer of 1.0mm, with the inductive effects increased when user's touch-control works and the convenience that works.
In sum, the utility model embodiment provides a kind of capacitive touch device, by reducing the crossover projected area being positioned at different layers induction electrode and emitting electrode, simultaneously, induction electrode also includes length and the adjustable branch electrodes of quantity, the touch-control working sensitivity of capacitive touch device can significantly be improved, and the touch-control working sensitivity simultaneously improved also can be used to the work of detection and examination whether having a touch control object just close; In addition, in the present embodiment, the recess region of emitting electrode is also provided with quantity and the adjustable virtual block of size, the noise resisting ability of capacitive touch device is made also to may correspond to raising, do not affect the visual effect of user simultaneously, and then significantly improve touch-control work and the products application of capacitive touch device yet.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a capacitive touch device, is characterized in that, includes:
One substrate;
Multiple first electrode, compartment of terrain is arranged on described substrate, wherein each first electrode be along one first direction extend and compartment of terrain is provided with plural branch electrodes in a second direction;
Multiple second electrode, compartment of terrain is arranged on described substrate, and wherein each second electrode extends along described second direction and includes multiple recess region; And
Multiple virtual block, to be arranged in described multiple recess region and not to contact described multiple second electrode, being used for shielding at least one noise signal;
Wherein, described first direction is mutually vertical with described second direction, described multiple first electrode and described multiple second electrode are arranged on the different surfaces of described substrate respectively, and the projected area of the projected area of described multiple first electrode of part, the projected area of the described plural branch electrodes of part and described multiple second electrode of part forms a crossover projected area, to carry out a mutual tolerance formula touch-control job.
2. capacitive touch device as claimed in claim 1, it is characterized in that, described crossover projected area also utilizes a mutual tolerance value variable quantity, whether has capacitive touch device described in an object proximity to detect.
3. capacitive touch device as claimed in claim 1, it is characterized in that, described multiple first electrode forms a long column block and described plural branch electrodes forms a short column block, and each long column block and each short column block all have a width to be 0.3 millimeter.
4. capacitive touch device as claimed in claim 1, it is characterized in that, in described second direction, spaced described plural branch electrodes has different horizontal lengths.
5. capacitive touch device as claimed in claim 1, it is characterized in that, in every three branch electrodes, the projected area crossover of one is in the projected area of described multiple second electrode, and the projected area of one first recess region that the projected area crossover both other comprises between adjacent two the second electrodes.
6. capacitive touch device as claimed in claim 1, it is characterized in that, adjacent described multiple recess region one spacing distance of described multiple virtual block is 0.3 millimeter, and be also provided with multiple virtual block in each recess region, and every two virtual blocks are 0.3 millimeter at a distance of another spacing distance.
7. capacitive touch device as claimed in claim 1, it is characterized in that, one first recess region is included between adjacent two the second electrodes, and described multiple recess region of each the second electrode includes multiple second recess region and multiple 3rd recess region, the projected area crossover of wherein said multiple first recess region is in the projected area of described multiple branch electrodes, each second recess region is provided with single virtual block, each the 3rd recess region is provided with two virtual blocks, and be arranged at described multiple second recess region and the described multiple virtual block crossover major part area of described multiple second recess region in described multiple 3rd recess region with the area of described multiple 3rd recess region and do not contact described multiple second recess region and described multiple 3rd recess region.
8. capacitive touch device as claimed in claim 1, it is characterized in that, the touch-control module being also less than 1.0 millimeters with a tip width carries out the work of described mutual tolerance formula touch-control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520395416.8U CN204740577U (en) | 2015-06-10 | 2015-06-10 | Capacitanc touch devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520395416.8U CN204740577U (en) | 2015-06-10 | 2015-06-10 | Capacitanc touch devices |
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| CN204740577U true CN204740577U (en) | 2015-11-04 |
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| CN201520395416.8U Active CN204740577U (en) | 2015-06-10 | 2015-06-10 | Capacitanc touch devices |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831960A (en) * | 2017-12-12 | 2018-03-23 | 武汉华星光电半导体显示技术有限公司 | Contact panel and contactor control device |
| CN109934056A (en) * | 2017-12-15 | 2019-06-25 | 南昌欧菲光科技有限公司 | Fingerprint identification module, fingerprint recognition and touch-control sensing component and display component |
| CN111638811A (en) * | 2020-05-29 | 2020-09-08 | 京东方科技集团股份有限公司 | Touch panel, preparation method thereof and display device |
-
2015
- 2015-06-10 CN CN201520395416.8U patent/CN204740577U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831960A (en) * | 2017-12-12 | 2018-03-23 | 武汉华星光电半导体显示技术有限公司 | Contact panel and contactor control device |
| CN109934056A (en) * | 2017-12-15 | 2019-06-25 | 南昌欧菲光科技有限公司 | Fingerprint identification module, fingerprint recognition and touch-control sensing component and display component |
| CN109934056B (en) * | 2017-12-15 | 2022-03-29 | 安徽精卓光显技术有限责任公司 | Fingerprint identification module, fingerprint identification and touch-control response subassembly and display module |
| CN111638811A (en) * | 2020-05-29 | 2020-09-08 | 京东方科技集团股份有限公司 | Touch panel, preparation method thereof and display device |
| CN111638811B (en) * | 2020-05-29 | 2023-09-01 | 京东方科技集团股份有限公司 | Touch panel, manufacturing method thereof and display device |
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Effective date of registration: 20240205 Address after: 19th Floor, Building J2A, Phase II of Innovation Industry Park, No. 2800 Innovation Avenue, High tech Zone, Hefei City, Anhui Province Patentee after: Hefei Chuangfa Microelectronics Co.,Ltd. Country or region after: China Address before: Hsinchu County, Taiwan, China Patentee before: SITRONIX TECHNOLOGY Corp. Country or region before: Taiwan, China |
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