CN201477560U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
- Publication number
- CN201477560U CN201477560U CN2009201341811U CN200920134181U CN201477560U CN 201477560 U CN201477560 U CN 201477560U CN 2009201341811 U CN2009201341811 U CN 2009201341811U CN 200920134181 U CN200920134181 U CN 200920134181U CN 201477560 U CN201477560 U CN 201477560U
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- electrode layer
- layer
- touch screen
- capacitive touch
- lower electrode
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- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Abstract
The utility model discloses a capacitive touch screen, comprising an upper electrode layer and a lower electrode layer; a shielding layer is insulatedly embedded into at least one layer of the upper electrode layer or the lower electrode layer whose surface pattern is complementary with the shielding layer and is matched with the shielding layer in parallel, in this way, the shielding role is played after hanging or grounding, therefore, the external electromagnetic interference can be avoided to a certain extent, and the touch point detection accuracy of the touch screen is increased.
Description
[technical field]
The utility model relates to the touch screen technology field, relates in particular to a kind of capacitive touch screen.
[background technology]
The appearance of increasing high-end handheld equipment, promoted the develop rapidly of touch screen technology, existing resistive touch screen can't satisfy the needs of existing electronic equipment, so the development of capacitive touch screen has just had very large space owing to its life-span and application space is limited.
At present, its capacitive touch screen generally has such structure, according to last and generally comprise successively down top dielectric layer 1, on go between electrode layer 2, upper electrode layer 3, insulating medium layer 4, go between electrode layer 5, lower electrode layer 6 and layer dielectric layer 7 down, top dielectric layer 1 wherein, insulating medium layer 4 and layer dielectric layer can be respectively the materials of glass, insulation colloid and glass, also can be the materials of silicon dioxide, glass and silicon dioxide.The upward lead-in wire electrode layer wherein and the electrode layer that goes between down can be the silver slurries of silk-screen, also can be the metals that plates.Such capacitive touch screen exist the reaction time short, the life-span is long, transmittance is high, do not need in addition advantage such as writing pencil, the application on high-end handheld equipment is also more and more wider.But similarly, this capacitive touch screen ubiquity is the interference shielding poor performance to external world, thereby causes the lower shortcoming of its overall performance.
[utility model content]
The utility model provides a kind of shield effectiveness good, the capacitive touch screen that its touch point accuracy of detection is higher at the shortcoming of its shield effectiveness difference in the prior art.
The technical solution of the utility model is: a kind of capacitive touch screen comprises upper electrode layer and lower electrode layer, the screen layer of the embedding of insulation ground and its picture on surface complementation and parallel matched in one deck at least of described upper electrode layer or lower electrode layer.
The utility model is by the mode of insulation ground embedding in one deck at least of described upper electrode layer or lower electrode layer with the screen layer of its picture on surface complementation and parallel matched, after unsettled or ground connection, play the effect of shielding, thereby can avoid outside electromagnetic interference to a certain extent, thereby improve the touch point accuracy of detection of touch-screen.
Feature of the present utility model and advantage will be elaborated in conjunction with Figure of description by embodiment.
[description of drawings]
The structural representation of a kind of embodiment of capacitive touch screen that Fig. 1 provides for the utility model;
The lower electrode layer orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 2 provides for the utility model;
The upper electrode layer orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 3 provides for the utility model;
Fig. 4 makes up the orthogonal projection synoptic diagram for upper electrode layer and the lower electrode layer of a kind of embodiment of capacitive touch screen that the utility model provides;
The following screen layer orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 5 provides for the utility model;
The following screen layer of a kind of embodiment of capacitive touch screen that Fig. 6 provides for the utility model and the combination orthogonal projection synoptic diagram of lower electrode layer;
The upper shielding layer orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 7 provides for the utility model;
The upper shielding layer of a kind of embodiment of capacitive touch screen that Fig. 8 provides for the utility model and the combination orthogonal projection synoptic diagram of upper electrode layer.
[embodiment]
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As shown in Figure 1, a kind of capacitive touch screen that the utility model provides comprises upper electrode layer 3 and lower electrode layer 6, the screen layer of the embedding of insulation ground and its picture on surface complementation and parallel matched in one deck at least of described upper electrode layer 3 or lower electrode layer 6.More preferably, insulation ground embeds the upper shielding layer 8 of array pattern complementation surperficial with it and parallel matched in described upper electrode layer 3, embeds to insulation the following screen layer 9 with its picture on surface complementation and parallel matched in described lower electrode layer 6.
With reference to Fig. 2 and Fig. 3, the lower electrode layer 6 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 2 provides for the utility model, the upper electrode layer 3 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 3 provides for the utility model, the picture on surface of described upper electrode layer 3 and lower electrode layer 6 is the regular figure array.The picture on surface of described upper electrode layer 3 or lower electrode layer 6 can be octagon array, rhombus array, regular hexagon array or square array.In an embodiment of the present utility model, described upper electrode layer 3 and lower electrode layer 6, its single conductive electrode direction is complementary quadrature, promptly in described upper electrode layer 3, has vertical or horizontal conductive electrode 30, having laterally in described lower electrode layer 6 or conductive electrode 60 longitudinally, is orthogonality relation between its conductive electrode.And the single conductive electrode of upper electrode layer 3 or lower electrode layer 6 has been designed to have regular figure and has arranged the shape that forms, with reference to Fig. 2, the single conductive electrode 60 of for example described lower electrode layer 6 is by a plurality of octagon 61 transversely arranged forming, and has certain space, interval between two single conductive electrodes, and it also has the shape of a certain rule at interval, for example can be for arranging the shape that forms by a plurality of squares 62, in the case, the single conductive electrode 30 of described upper electrode layer 3 is longitudinally formed by a plurality of squares 31, and has certain space, interval between two single conductive electrodes 30, and it also has the shape of a certain rule at interval, for example can be for arranging the shape that forms by a plurality of regular hexagons 32, complementation coupling is carried out in the space, interval of the square 62 in the vertical single conductive electrode 30 of each bar of described upper electrode layer 3 and the lower electrode layer 6, and a plurality of regular hexagons 32 that are of described upper electrode layer 3 are arranged and formed carrying out complementation by a plurality of octagon 61 transversely arranged a plurality of single conductive electrodes 60 and mating of spaces and described lower electrode layers 6 at interval.For this partial content; this technical field those of ordinary skill is not difficult to learn by reading above said content; complementation and quadrature matching relationship for upper electrode layer 3 and lower electrode layer 6 also have many concrete embodiments; here point out one by one, but all be contained within the protection domain of the present utility model.
With reference to Fig. 2 and Fig. 3, according to a kind of preferred embodiment of the present utility model, described upper electrode layer 3 is last ITO electrod-array layer, and described lower electrode layer 6 is following ITO electrod-array layer.
With reference to Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the following screen layer 9 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 5 provides for the utility model, the following screen layer 9 of a kind of embodiment of capacitive touch screen that Fig. 6 provides for the utility model and the combination orthogonal projection synoptic diagram of lower electrode layer 6, the upper shielding layer 8 of a kind of embodiment of capacitive touch screen that the upper shielding layer 8 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 7 provides for the utility model, Fig. 8 provide for the utility model and the combination orthogonal projection synoptic diagram of upper electrode layer 3.At first, contrast Fig. 5 and Fig. 2, narrate the matching relationship of described screen layer 9 down and described lower electrode layer 6.The described picture on surface of screen layer 9 down can be octagon array, rhombus array, regular hexagon array or square array.In an embodiment of the present utility model, described screen layer 9 down, the conductive electrode direction of its picture on surface array and described lower electrode layer 6 is the parallel complementary matching relationship, promptly in described down screen layer 9, have with described upper electrode layer 3 in arrange the single shielding strip 90 of the parallel and complementary coupling in the space, interval that forms by a plurality of squares 91, the shape that also has a certain rule between the described down single shielding strip 90 that screen layer 9 is adjacent in twos, for example can be to arrange the space, interval that forms, make the arranging the space, interval that forms by a plurality of octagons 92 and carry out complementation and mate by the transversely arranged a plurality of single conductive electrode 60 of a plurality of octagon 92 and described screen layer 9 down of described lower electrode layer 6 by a plurality of octagons 92.
Then, with reference to Fig. 3, Fig. 7 and Fig. 8, narrate the matching relationship of described upper shielding layer 8 and described upper electrode layer 3.Wherein, the upper electrode layer 3 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 3 provides for the utility model, the upper shielding layer 8 of a kind of embodiment of capacitive touch screen that the upper shielding layer 8 orthogonal projection synoptic diagram of a kind of embodiment of capacitive touch screen that Fig. 7 provides for the utility model, Fig. 8 provide for the utility model and the combination orthogonal projection synoptic diagram of upper electrode layer 3.Identical with the matching relationship of described screen layer 9 down and lower electrode layer 6 for upper shielding layer 8 with the complementary parallel matched relation of upper electrode layer 3, do not do repetition here and carefully state.
Described upper shielding layer 8 and following screen layer 9 are unsettled or ground connection on electric connection mode, are used for shielding outside electromagnetic interference, can make the transmitance of whole touch screen device more even simultaneously.More preferably, described upper shielding layer 8 is unsettled, and described screen layer 9 down is a ground connection.Under the preferable case, described screen layer is the ITO conductive layer.
In the process of design, generally the area design of described upper electrode layer 3 is become to be less than or equal to the area of lower electrode layer 6, the fundamental purpose of this way is to improve the sensitivity that detects, area size for described upper electrode layer 3 and lower electrode layer 6 can be provided with voluntarily according to the requirement in the specific design process, parameter, does not elaborate here.
The utility model is by the mode of insulation ground embedding in one deck at least of described upper electrode layer 3 or lower electrode layer 6 with the screen layer of its picture on surface complementation and parallel matched, after unsettled or ground connection, play the effect of shielding, thereby can avoid outside electromagnetic interference to a certain extent, thereby improve the touch point accuracy of detection of touch-screen.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a capacitive touch screen comprises upper electrode layer and lower electrode layer, it is characterized in that the screen layer of the embedding of insulation ground and its picture on surface complementation and parallel matched in one deck at least of described upper electrode layer or lower electrode layer.
2. capacitive touch screen according to claim 1 is characterized in that, described upper electrode layer is last ITO electrod-array layer, and described lower electrode layer is following ITO electrod-array layer.
3. capacitive touch screen according to claim 1 is characterized in that, the unsettled or ground connection of described screen layer.
4. capacitive touch screen according to claim 1 is characterized in that, described picture on surface is the regular figure array.
5. capacitive touch screen according to claim 1 is characterized in that, described screen layer is the ITO conductive layer.
6. capacitive touch screen according to claim 1 is characterized in that, the area of described upper electrode layer is less than or equal to the area of lower electrode layer.
7. capacitive touch screen according to claim 1, it is characterized in that, insulation ground embeds the upper shielding layer of array pattern complementation surperficial with it and parallel matched in described upper electrode layer, embeds to insulation the following screen layer with its picture on surface complementation and parallel matched in described lower electrode layer.
8. capacitive touch screen according to claim 1 is characterized in that, the picture on surface complementation of the picture on surface of described upper electrode layer and described lower electrode layer and quadrature coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201341811U CN201477560U (en) | 2009-07-22 | 2009-07-22 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201341811U CN201477560U (en) | 2009-07-22 | 2009-07-22 | Capacitive touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN201477560U true CN201477560U (en) | 2010-05-19 |
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| CN2009201341811U Expired - Lifetime CN201477560U (en) | 2009-07-22 | 2009-07-22 | Capacitive touch screen |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841716A (en) * | 2012-08-21 | 2012-12-26 | 北京京东方光电科技有限公司 | Capacitance-type embedded touch screen and display device |
| CN103257766A (en) * | 2013-01-06 | 2013-08-21 | 晶门科技有限公司 | Method for Reducing Lamination Accuracy Requirements of Touch Screen Sensing Film and Capacitive Touch Screen |
| CN103488357A (en) * | 2012-06-12 | 2014-01-01 | 群康科技(深圳)有限公司 | Touch panel and touch display device comprising same |
| CN103513837A (en) * | 2012-06-29 | 2014-01-15 | 上海天马微电子有限公司 | Mutual capacitance type touch structure, touch panel and touch display panel |
| CN103593102A (en) * | 2013-09-30 | 2014-02-19 | 湖州健邦科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104461094A (en) * | 2013-09-17 | 2015-03-25 | 宸鸿科技(厦门)有限公司 | Touch display and touch panel thereof |
| WO2015043222A1 (en) * | 2013-09-30 | 2015-04-02 | 京东方科技集团股份有限公司 | Touch display panel and display apparatus |
| CN104866126A (en) * | 2014-02-25 | 2015-08-26 | 宸鸿科技(厦门)有限公司 | Touch panel |
| CN105549779A (en) * | 2010-12-30 | 2016-05-04 | 禾瑞亚科技股份有限公司 | Capacitive touch screen detection method and capacitive touch screen |
| CN108984041A (en) * | 2018-09-04 | 2018-12-11 | 信利光电股份有限公司 | A kind of production method and OGS touch screen of OGS touch screen |
| US10209549B2 (en) | 2016-07-01 | 2019-02-19 | Au Optronics Corporation | Touch panel and method for manufacturing the same |
| WO2020168813A1 (en) * | 2019-02-19 | 2020-08-27 | 广州视源电子科技股份有限公司 | Capacitive screen preventing display module interference and preparation method thereof |
| CN112513580A (en) * | 2019-08-02 | 2021-03-16 | 深圳市越疆科技有限公司 | Mechanical equipment shell and robot |
-
2009
- 2009-07-22 CN CN2009201341811U patent/CN201477560U/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549779B (en) * | 2010-12-30 | 2018-10-30 | 禾瑞亚科技股份有限公司 | Detection method of capacitive touch screen and capacitive touch screen |
| CN105549779A (en) * | 2010-12-30 | 2016-05-04 | 禾瑞亚科技股份有限公司 | Capacitive touch screen detection method and capacitive touch screen |
| CN103488357A (en) * | 2012-06-12 | 2014-01-01 | 群康科技(深圳)有限公司 | Touch panel and touch display device comprising same |
| CN103513837A (en) * | 2012-06-29 | 2014-01-15 | 上海天马微电子有限公司 | Mutual capacitance type touch structure, touch panel and touch display panel |
| CN102841716B (en) * | 2012-08-21 | 2015-08-05 | 北京京东方光电科技有限公司 | A kind of capacitance type in-cell touch panel and display device |
| US9606390B2 (en) | 2012-08-21 | 2017-03-28 | Beijing COE Optoelectronics Technology Co., Ltd. | Capacitive in-cell touch panel and display device |
| CN102841716A (en) * | 2012-08-21 | 2012-12-26 | 北京京东方光电科技有限公司 | Capacitance-type embedded touch screen and display device |
| CN103257766B (en) * | 2013-01-06 | 2016-08-10 | 晶门科技有限公司 | Method for Reducing Lamination Accuracy Requirements of Touch Screen Sensing Film and Capacitive Touch Screen |
| CN103257766A (en) * | 2013-01-06 | 2013-08-21 | 晶门科技有限公司 | Method for Reducing Lamination Accuracy Requirements of Touch Screen Sensing Film and Capacitive Touch Screen |
| CN104461094A (en) * | 2013-09-17 | 2015-03-25 | 宸鸿科技(厦门)有限公司 | Touch display and touch panel thereof |
| CN104461094B (en) * | 2013-09-17 | 2018-04-17 | 宸鸿科技(厦门)有限公司 | Touch control display |
| WO2015043222A1 (en) * | 2013-09-30 | 2015-04-02 | 京东方科技集团股份有限公司 | Touch display panel and display apparatus |
| US9569048B2 (en) | 2013-09-30 | 2017-02-14 | Boe Technology Group Co., Ltd. | Touch display panel and display device |
| CN103593102A (en) * | 2013-09-30 | 2014-02-19 | 湖州健邦科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104866126A (en) * | 2014-02-25 | 2015-08-26 | 宸鸿科技(厦门)有限公司 | Touch panel |
| CN104866126B (en) * | 2014-02-25 | 2018-08-07 | 宸鸿科技(厦门)有限公司 | Touch panel |
| US10209549B2 (en) | 2016-07-01 | 2019-02-19 | Au Optronics Corporation | Touch panel and method for manufacturing the same |
| CN108984041A (en) * | 2018-09-04 | 2018-12-11 | 信利光电股份有限公司 | A kind of production method and OGS touch screen of OGS touch screen |
| WO2020168813A1 (en) * | 2019-02-19 | 2020-08-27 | 广州视源电子科技股份有限公司 | Capacitive screen preventing display module interference and preparation method thereof |
| CN112513580A (en) * | 2019-08-02 | 2021-03-16 | 深圳市越疆科技有限公司 | Mechanical equipment shell and robot |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150901 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150901 Address after: 518119 Guangdong province Shenzhen City Dapeng new Kwai town Yanan Road No. 1 building experimental Byd Co Patentee after: Shenzhen BYD Electronic Component Co., Ltd. Address before: 518118 Pingshan Road, Pingshan Town, Shenzhen, Guangdong, No. 3001, No. Patentee before: Biyadi Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100519 |
|
| CX01 | Expiry of patent term |