CN201600673U - Photoinductive capacitive touch screen - Google Patents
Photoinductive capacitive touch screen Download PDFInfo
- Publication number
- CN201600673U CN201600673U CN2010201056336U CN201020105633U CN201600673U CN 201600673 U CN201600673 U CN 201600673U CN 2010201056336 U CN2010201056336 U CN 2010201056336U CN 201020105633 U CN201020105633 U CN 201020105633U CN 201600673 U CN201600673 U CN 201600673U
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- transparency electrode
- touch screen
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Abstract
The utility model provides a photoinductive capacitive touch screen, which comprises a transparent substrate and two transparent electrode sets. The two transparent electrode sets are uniformly disposed respectively along transverse and longitudinal directions on a same surface of the transparent substrate, each transparent electrode set is formed by connecting a plurality of unit electrodes, the unit electrodes in one direction are distributed among gaps of the unit electrodes in another direction, separated gaps or insulating layers are arranged between the longitudinal unit electrodes and the transverse unit electrodes, and a photo sensor unit is arranged at intersection of one transverse unit electrode and one longitudinal unit electrode. The photoinductive capacitive touch screen determines touch positions by detecting capacitance change of the touch screen so as to resolve the shortage that the touch screen is unavailable for touches in dim light or without light, and determines touch point coordinates by using the photo sensor units to detect change of light intensity on the touch screen so as to overcome the shortage that a user in gloves cannot carry out touch actions.
Description
Technical field
The utility model belongs to the touch-screen field, relate in particular to a kind of not only can the inductance capacitance size but also can respond to the photoinduction capacitance touch screen structure that light changes.
Background technology
Common touch-screen mainly is divided into several big classes of resistance screen, capacitance plate, infrared touch panel and surface wave touch-screens at present.
Common capacitance plate can only directly contact at finger or with other electric conductor that health is connected or during without barrier fully near touch screen surface, touch-screen could respond.In other words, for some special occasions, such as, need wear gloves and carry out touch screen operation, at this moment the electric current of touch-screen almost can not pass to health from touch screen surface, and operation just can't be carried out.
Therefore, existing capacitive touch screen is difficult to realize wearing the gloves operation, and function ratio is more single.
The utility model content
The utility model is difficult to realize wearing the gloves operation at capacitance touch screen in the prior art, and the technical matters that function ratio is more single provides a kind of gloves operation that can realize wearing, and can be operated in the touch-screen under two kinds of patterns of photoinduction and electric capacity.
Problem of the present utility model solves by the following technical programs:
A kind of photoinduction capacitance touch screen, comprise a transparency carrier and two groups of transparency electrodes, described two groups of transparency electrodes are respectively along horizontal and vertical even setting on the same surface of transparency carrier, each is organized transparency electrode and is formed by connecting by a plurality of cell electrode, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be provided with gap or the insulation course of separating mutually between each vertical cell electrode and each lateral cell electrode, the staggered place of horizontal and vertical cell electrode is provided with the photoinduction unit.
A kind of photoinduction capacitance touch screen, comprise first transparency carrier with first transparency electrode, second transparency carrier with second transparency electrode, described first transparency electrode is along the first direction setting of first transparency carrier, described second transparency electrode is along the second direction setting of second transparency carrier, described first direction is vertical substantially with second direction, first transparency electrode and second transparency electrode are connected in sequence by a plurality of cell electrode, after the two substrates combination, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be filled with transparent insulation course between first transparency electrode and second transparency electrode, the staggered place of the cell electrode of first direction and second direction is provided with the photoinduction unit.
The photoinduction capacitance touch screen that the utility model provides can be determined touch location by the capacitance variations of senses touch screen on the one hand, utilizes photoinduction unit senses touch screen to go up intensity variation on the other hand and determines the touch point coordinate.Particularly, in the time of on touching transparency electrode, because two groups of transparency electrodes are that insulation is provided with, therefore single group transparency electrode and touch finger have just formed electric capacity, can be by detecting the function that its changes in capacitance realizes capacitance touch screen, solved very weak or do not have photoinduction touch-screen under the light can't carry out the defective of touch action at light; Simultaneously, when touching the photoinduction unit of two groups of transparency electrode staggered places, the structure conducting of photoinduction unit, the electric current variation that produces is transferred to electrode, testing circuit detects electric current to be changed and confirms touch action, has solved capacitance touch screen just can't carry out touch action when wearing the gloves operation defective.
Description of drawings
Fig. 1 is the photoinduction capacitance touch screen first embodiment perspective view that the utility model provides;
Fig. 2 is the photoinduction capacitance touch screen first embodiment planar structure synoptic diagram that the utility model provides;
Fig. 3 is a photoinduction unit perspective view in the photoinduction capacitance touch screen that provides of the utility model;
Fig. 4 is one group of transparent electrode structure synoptic diagram in the photoinduction capacitance touch screen that provides of the utility model;
Fig. 5 is another group transparent electrode structure synoptic diagram in the photoinduction capacitance touch screen that provides of the utility model;
Fig. 6 is the photoinduction capacitance touch screen second embodiment perspective view that the utility model provides.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.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.
Please refer to shown in Figure 1: a kind of photoinduction capacitance touch screen, comprise a transparency carrier 11 and two groups of transparency electrodes 12 and 14, described two groups of transparency electrodes are respectively along horizontal and vertical even setting on the same surface of transparency carrier, each is organized transparency electrode and is formed by connecting by a plurality of cell electrode, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be provided with gap or the insulation course of separating mutually between each vertical cell electrode and each lateral cell electrode, the staggered place of horizontal and vertical cell electrode is provided with photoinduction unit 13.
Wherein, the material selection glass of described transparency carrier 11, acrylic material or transparent film material, described two groups of transparency electrodes 12 and 14 material selection tin indium oxide (ITO) or indium zinc oxide (IZO).
Described photoinduction unit 13 can be made of PN junction or photoresistance, as a kind of concrete embodiment, described photoinduction unit 13 is made of PN junction, and described PN junction comprises N-type semiconductor and P-type semiconductor, and described semi-conductive material can be selected monocrystalline silicon or monocrystalline germanium for use.
The shape of described each cell electrode is specifically as follows the block structure of rhombus, triangle, rectangle or other types as long as satisfy the shape complementarity of two groups of transparency electrodes, please refer to Fig. 4 and shown in Figure 5.As a kind of concrete embodiment, described cell electrode is the diamond block structure, and the junction of each cell electrode is located between the dicing.The material of described cell electrode can be selected tin indium oxide (ITO) or indium zinc oxide (IZO) for use.
Please refer to shown in Figure 2, specific embodiment as a kind of photoinduction capacitance touch screen, continuous shape distributes described horizontal transparency electrode 21 and laterally continuous successively cell electrode 211 is formed by being, shape distributes described vertical transparency electrode 22 and cell electrode independent of each other 221 is formed by being vertically continuously, the every vertically adjacent cell electrode of described vertical transparency electrode is by bus 23 cross-over connections, and each bus 23 strides across the staggered place of horizontal transparency electrode and laterally is provided with photoinduction unit 24 between the transparency electrode 21.
Wherein, vertical transparency electrode 22 is distributed in the gap of horizontal transparency electrode 21; Simultaneously, cell electrode 211 in two groups of transparency electrodes and 221 area preferably are not more than 0.5 square centimeter, mainly be when allowing finger touch, finger can touch the capacitive sensing zone can touch the photoinduction structural region again, and common people's finger touches area and is about 1 square centimeter.Bus 23 is used for connecting the cell electrode 221 of vertical transparency electrode 22, can be formed by tin indium oxide (ITO) or indium zinc oxide (IZO) sputter.
Please refer to shown in Figure 3ly, described photoinduction unit 33 is made of PN junction, comprises N-type semiconductor and P-type semiconductor, and described horizontal transparency electrode 32, N-type semiconductor, P-type semiconductor, vertically transparency electrode 31 is disposed in order.Therefore certainly, N-type semiconductor and P-type semiconductor position in the described photoinduction unit can also exchange, and form described horizontal transparency electrode 32, P-type semiconductor, N-type semiconductor, vertically transparency electrode 31 is disposed in order.
Accordingly, the foregoing description can be done as down conversion: as described in vertical transparency electrode 22 continuous shape distributes and the cell electrode 221 that vertically links to each other is successively formed by being, shape distributes described horizontal transparency electrode 21 and cell electrode independent of each other 211 is formed by being laterally continuously, the every laterally adjacent cell electrode of described horizontal transparency electrode is by bus 23 cross-over connections, and each bus strides across the staggered place of vertical transparency electrode and vertically is provided with photoinduction unit 24 between the transparency electrode.Wherein, described horizontal transparency electrode 21, N-type semiconductor, P-type semiconductor, vertical transparency electrode 22 are disposed in order.Certainly, N-type semiconductor and P-type semiconductor position in the described photoinduction unit can exchange equally, to form described horizontal transparency electrode 21, P-type semiconductor, N-type semiconductor, the vertical structure that is disposed in order of transparency electrode 22.
Please refer to shown in Figure 4, the another kind of photoinduction capacitance touch screen that provides for the utility model, with previous embodiment inequality be, this example major different is to provide two transparency carriers, described two groups of transparency electrodes are separately positioned on wherein on the transparency carrier.Particularly, comprise first transparency carrier 61 with first transparency electrode 62, second transparency carrier 65 with second transparency electrode 64, described first transparency electrode 62 is along the first direction setting of first transparency carrier 61, described second transparency electrode 64 is along the second direction setting of second transparency carrier 65, described first direction is vertical substantially with second direction, first transparency electrode 62 and second transparency electrode 64 are connected in sequence by a plurality of cell electrode 621 and 641, after the two substrates combination, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be filled with transparent insulation course between first transparency electrode and second transparency electrode simultaneously, the staggered place of the cell electrode of first direction and second direction is provided with photoinduction unit 63.
Wherein, described transparent insulating layer material is silicon dioxide or silicon nitride or polyamides or refractive index UV glue or refractive index with glass close other curable glue close with glass; this insulation course is set; can avoid the short circuit between the two-layer electrode up and down on the one hand; can support two transparency carriers up and down on the one hand, avoid the appearance of Newton ring.Simultaneously, the structure of described photoinduction unit 63 and previous embodiment and be provided with does not similarly repeat them here.
Photoinduction capacitance touch screen described in the utility model is to realize like this on control mode, at first: control signal is alternately sent detection signal in time, the electric current that detects capacitance variations and photoinduction respectively changes, if (promptly detect capacitance variations during this period of time, the hypomere time is just detected the current signal that causes the photoinduction unit and changes) if at first to detect be that electric capacity changes, then: detected capacitance variations is transferred to central processing unit, judge the changes in capacitance amount, just carry out touch action if surpass the amount of pre-stored, stop to detect the photoinduction current signal simultaneously, carry out the detection that next capacitance signal changes, if do not change, whether sensed current signal changes again.If current signal changes, carry out touch action, if the current signal no change, the detection of next capacitance signal is carried out in then no touch action, circulates with this and detects.Certainly detection signal also can first sensed current signal and then is detected capacitance signal, and the sequencing of this detection can be defined by driver.
The photoinduction capacitance touch screen that the utility model provides can be determined touch location by the capacitance variations of senses touch screen on the one hand, utilizes photoinduction unit senses touch screen to go up intensity variation on the other hand and determines the touch point coordinate.Particularly, in the time of on touching transparency electrode, because two groups of transparency electrodes are that insulation is provided with, therefore single group transparency electrode and touch finger have just formed electric capacity, can be by detecting the function that its changes in capacitance realizes capacitance touch screen, solved very weak or do not have photoinduction touch-screen under the light just can't carry out the defective of touch action at light; Simultaneously, when touching the photoinduction unit of two groups of transparency electrode staggered places, the structure conducting of photoinduction unit, the electric current variation that produces is transferred to electrode, testing circuit detects electric current to be changed and confirms touch action, has solved capacitance touch screen just can't carry out touch action when wearing the gloves operation defective.
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 (10)
1. photoinduction capacitance touch screen, comprise a transparency carrier and two groups of transparency electrodes, it is characterized in that, described two groups of transparency electrodes are respectively along horizontal and vertical even setting on the same surface of transparency carrier, each is organized transparency electrode and is formed by connecting by a plurality of cell electrode, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be provided with gap or the insulation course of separating mutually between each vertical cell electrode and each lateral cell electrode, the staggered place of horizontal and vertical cell electrode is provided with the photoinduction unit.
2. photoinduction capacitance touch screen according to claim 1 is characterized in that, described photoinduction unit is made of PN junction, and described PN junction comprises N-type semiconductor and P-type semiconductor.
3. photoinduction capacitance touch screen according to claim 1 is characterized in that, described each cell electrode be shaped as the diamond block structure, the junction of each cell electrode is located between the dicing.
4. according to each described photoinduction capacitance touch screen in the claim 1 to 3, it is characterized in that, continuous shape distributes described horizontal transparency electrode and laterally continuous successively cell electrode is formed by being, shape distributes described vertical transparency electrode and cell electrode independent of each other is formed by being vertically continuously, the every vertically adjacent cell electrode of described vertical transparency electrode is by the bus cross-over connection, and each bus strides across the staggered place of horizontal transparency electrode and laterally is provided with the photoinduction unit between the transparency electrode.
5. photoinduction capacitance touch screen according to claim 4 is characterized in that, described horizontal transparency electrode, N-type semiconductor, P-type semiconductor, vertical transparency electrode are disposed in order.
6. photoinduction capacitance touch screen according to claim 4 is characterized in that, described horizontal transparency electrode, P-type semiconductor, N-type semiconductor, vertical transparency electrode are disposed in order.
7. according to each described photoinduction capacitance touch screen in the claim 1 to 3, it is characterized in that, continuous shape distributes described vertical transparency electrode and vertically continuous successively cell electrode is formed by being, shape distributes described horizontal transparency electrode and cell electrode independent of each other is formed by being laterally continuously, the every laterally adjacent cell electrode of described horizontal transparency electrode is by the bus cross-over connection, and each bus strides across the staggered place of vertical transparency electrode and vertically is provided with the photoinduction unit between the transparency electrode.
8. photoinduction capacitance touch screen according to claim 7 is characterized in that, described horizontal transparency electrode, N-type semiconductor, P-type semiconductor, vertical transparency electrode are disposed in order.
9. photoinduction capacitance touch screen according to claim 7 is characterized in that, described horizontal transparency electrode, P-type semiconductor, N-type semiconductor, vertical transparency electrode are disposed in order.
10. photoinduction capacitance touch screen, comprise first transparency carrier with first transparency electrode, second transparency carrier with second transparency electrode, described first transparency electrode is along the first direction setting of first transparency carrier, described second transparency electrode is along the second direction setting of second transparency carrier, described first direction is vertical substantially with second direction, it is characterized in that, first transparency electrode and second transparency electrode are connected in sequence by a plurality of cell electrode, after the two substrates combination, the cell electrode of one of them direction is distributed in the gap between the cell electrode of another direction, be filled with transparent insulation course between first transparency electrode and second transparency electrode, the staggered place of the cell electrode of first direction and second direction is provided with the photoinduction unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201056336U CN201600673U (en) | 2010-01-27 | 2010-01-27 | Photoinductive capacitive touch screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201056336U CN201600673U (en) | 2010-01-27 | 2010-01-27 | Photoinductive capacitive touch screen |
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| CN201600673U true CN201600673U (en) | 2010-10-06 |
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| CN2010201056336U Expired - Lifetime CN201600673U (en) | 2010-01-27 | 2010-01-27 | Photoinductive capacitive touch screen |
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| CN102436326A (en) * | 2011-12-29 | 2012-05-02 | 四川虹欧显示器件有限公司 | Writing board, manufacturing method thereof and writing pen |
| WO2013013511A1 (en) * | 2011-07-28 | 2013-01-31 | Tpk Touch Solutions (Xiamen) Inc. | Capacitive touch panel and a method of manufacturing the same |
| CN102929472A (en) * | 2012-11-27 | 2013-02-13 | 南昌欧菲光科技有限公司 | Transparent conductor for capacitive touch panel |
| 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 |
| CN103677463A (en) * | 2012-09-07 | 2014-03-26 | 元太科技工业股份有限公司 | Capacitance structure of capacitance type touch panel |
| WO2014101552A1 (en) * | 2012-12-27 | 2014-07-03 | 深圳市汇顶科技股份有限公司 | Light sensor and touch screen terminal |
| CN104765422A (en) * | 2015-04-28 | 2015-07-08 | 小米科技有限责任公司 | Screen module of mobile equipment and mobile equipment |
| CN105677116A (en) * | 2016-04-06 | 2016-06-15 | 京东方科技集团股份有限公司 | Touch control structure, touch screen and display device |
| CN106442521A (en) * | 2015-05-12 | 2017-02-22 | 欧普菲有限公司 | Method, apparatus and computer program product for testing a device |
| CN106484197A (en) * | 2016-10-21 | 2017-03-08 | 京东方科技集团股份有限公司 | Contact panel and its driving method, driving means |
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-
2010
- 2010-01-27 CN CN2010201056336U patent/CN201600673U/en not_active Expired - Lifetime
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| WO2013013511A1 (en) * | 2011-07-28 | 2013-01-31 | Tpk Touch Solutions (Xiamen) Inc. | Capacitive touch panel and a method of manufacturing the same |
| CN102436326B (en) * | 2011-12-29 | 2014-02-19 | 四川虹欧显示器件有限公司 | Writing board, manufacturing method thereof and writing pen |
| CN102436326A (en) * | 2011-12-29 | 2012-05-02 | 四川虹欧显示器件有限公司 | Writing board, manufacturing method thereof and writing pen |
| 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 |
| CN103677463B (en) * | 2012-09-07 | 2016-12-28 | 元太科技工业股份有限公司 | Capacitance structure of capacitance type touch panel |
| CN103677463A (en) * | 2012-09-07 | 2014-03-26 | 元太科技工业股份有限公司 | Capacitance structure of capacitance type touch panel |
| CN102929472A (en) * | 2012-11-27 | 2013-02-13 | 南昌欧菲光科技有限公司 | Transparent conductor for capacitive touch panel |
| WO2014101552A1 (en) * | 2012-12-27 | 2014-07-03 | 深圳市汇顶科技股份有限公司 | Light sensor and touch screen terminal |
| CN104765422A (en) * | 2015-04-28 | 2015-07-08 | 小米科技有限责任公司 | Screen module of mobile equipment and mobile equipment |
| CN106442521A (en) * | 2015-05-12 | 2017-02-22 | 欧普菲有限公司 | Method, apparatus and computer program product for testing a device |
| CN105677116A (en) * | 2016-04-06 | 2016-06-15 | 京东方科技集团股份有限公司 | Touch control structure, touch screen and display device |
| CN105677116B (en) * | 2016-04-06 | 2018-07-10 | 京东方科技集团股份有限公司 | A kind of touch-control structure, touch screen and display device |
| CN106484197A (en) * | 2016-10-21 | 2017-03-08 | 京东方科技集团股份有限公司 | Contact panel and its driving method, driving means |
| CN106484197B (en) * | 2016-10-21 | 2018-03-16 | 京东方科技集团股份有限公司 | Contact panel and its driving method, drive device |
| CN107037926A (en) * | 2017-04-13 | 2017-08-11 | 京东方科技集团股份有限公司 | A kind of substrate, display device and its driving method, touch control display system |
| CN107037926B (en) * | 2017-04-13 | 2020-02-07 | 京东方科技集团股份有限公司 | Substrate, display device, driving method of display device and touch display system |
| WO2019024538A1 (en) * | 2017-07-31 | 2019-02-07 | 京东方科技集团股份有限公司 | Fingerprint identification structure and manufacturing method therefor |
| CN107392168A (en) * | 2017-07-31 | 2017-11-24 | 京东方科技集团股份有限公司 | A kind of fingerprint recognition structure and preparation method thereof |
| CN107392168B (en) * | 2017-07-31 | 2020-08-14 | 京东方科技集团股份有限公司 | Fingerprint identification structure and manufacturing method thereof |
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| JP2020533653A (en) * | 2017-09-01 | 2020-11-19 | 京東方科技集團股▲ふん▼有限公司Ｂｏｅ Ｔｅｃｈｎｏｌｏｇｙ Ｇｒｏｕｐ Ｃｏ．，Ｌｔｄ． | Display board, display device, control method of display device and manufacturing method of display board |
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| CN112947787A (en) * | 2021-02-23 | 2021-06-11 | 北京京东方显示技术有限公司 | Touch panel, display device, display system and touch method |
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Owner name: SHENZHEN BYD ELECTRONIC COMPONENT CO., LTD. Free format text: FORMER OWNER: BIYADI CO., LTD. Effective date: 20150902 |
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Effective date of registration: 20150902 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. |
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| CX01 | Expiry of patent term |
Granted publication date: 20101006 |
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