CN101634915A - Touch detection circuit structure for bistable electronic display - Google Patents
Touch detection circuit structure for bistable electronic display Download PDFInfo
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- CN101634915A CN101634915A CN200810128165A CN200810128165A CN101634915A CN 101634915 A CN101634915 A CN 101634915A CN 200810128165 A CN200810128165 A CN 200810128165A CN 200810128165 A CN200810128165 A CN 200810128165A CN 101634915 A CN101634915 A CN 101634915A
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Abstract
The invention relates to a touch detection circuit structure for a bistable electronic display, which is arranged between a substrate and a bistable display thin film. The touch detection circuit structure comprises a plurality of first electrodes, an insulation layer and a plurality of second electrodes, wherein the insulation layer is provided with a plurality of perforations; openings at both ends of each of the perforations are corresponding to the first electrode and the second electrode respectively; and the second electrode does not cover the perforations completely. Under the touch action of external, the first electrodes contact the second electrodes to generate resistance impedance effect for detecting and judging the position of touch points by a system end of the display.
Description
Technical field
The present invention is relevant with optical display, more detailed is meant a kind of touch detection circuit structure that is used for bistable electronic display.
Background technology
Ink manifesting on paper promptly imitated in the development of e-book (E-Paper Display), but make it possess characteristics such as easy reading, portable, reusable and down loading updating data, and when using e-book, only just having the power consumption situation when the picture unusual fluctuation takes place, easy speech, when the information of people on reading display frame, power supply is to be in closing state, so can reduce the consumption of electric power; Secondly, the structural design of e-book does not need the backlight of arranging in pairs or groups, and can read under the situation that external ambient light is only arranged, so the expenditure that can reduce cost.
Really above-mentioned e-book possesses not available characteristic of many traditional paper and advantage, only, it is when the unusual fluctuation picture, and being still with the button operation is control, seems very inconvenient, contact panel is controlled in the hope of providing comparatively easily though some e-book is arranged in pairs or groups in addition, but this contact panel is that the outermost that is located at e-book is folded in the add mode assembling in addition, has members such as glass substrate because of it, so will cause the increase of e-book integral thickness and weight, and anxiety of influential e-book optics display effect.Be with, if can solve foregoing problems again, believe and will make that the application of e-book is more extensive, and meet user demand.
Base this, this case inventor this in excelsior spirit, endeavour research and improve above-mentioned shortcoming, generation of the present invention is arranged eventually.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of touch detection circuit structure that is used for bistable electronic display, is built in display interior in being, can avoid increasing the thickness and the weight of display, and have the effect that does not influence the optics display effect.
Secondary objective of the present invention is to provide a kind of touch detection circuit structure that is used for bistable electronic display, has good touch-control sensing effect.
Edge is to reach above-mentioned purpose, a kind of touch detection circuit structure that is used for bistable electronic display provided by the present invention is that the substrate and the bistable state that are disposed at display show between the film, this touch detection circuit structure includes many first electrodes that are provided with along a first direction, one insulation course and many second electrodes that are provided with along a second direction, wherein, first electrode has at least one first surface of contact, this insulation course has first surface of contact of corresponding first electrode of a plurality of perforation, described second electrode is located at the opposite side surface of relative first electrode of insulation course, and second electrode is provided with one corresponding to the position of each perforation and does not cover the contact jaw of perforation fully, contact jaw has one second surface of contact, and second surface of contact is possessed a spacing with institute between corresponding first surface of contact.
Description of drawings
Be further to disclose concrete technology contents of the present invention, below in conjunction with embodiment and description of drawings as after, wherein:
Fig. 1 is the partial cutaway schematic of a preferred embodiment of the present invention.
Fig. 2 is the assembled sectional view of the above-mentioned preferred embodiment of the present invention.
Fig. 3 is the 3-3 direction cut-open view among Fig. 2.
Fig. 4 is the 4-4 direction cut-open view among Fig. 2.
Fig. 5 is Fig. 3 roughly the same, discloses second electrode and is directly to extension.
Fig. 6 is Fig. 3 roughly the same, discloses recess and projection that second electrode pair answers site of perforation to have to be absorbed in.
Fig. 7 is Fig. 3 roughly the same, discloses a flatness layer and is layed on second electrode and the insulation course.
Fig. 8 is Fig. 2 roughly the same, discloses the system end that is external to display after many strip electrodes electrically connect mutually again.
Fig. 9 is Fig. 2 roughly the same, and the announcement electrode is the system end electric connection with interval mode and display.
Figure 10 is a local amplification stereogram, discloses second electrode and has the perforation of recess structure and insulation course and communicate.
Embodiment
See also Fig. 1 to Fig. 4, be bistable electronic display 100 with touch detection circuit structure 10 of the present invention, this display 100 includes a substrate 102 and a bistable state shows film 106, wherein, this substrate 102 is the bottoms that constitute display 100, it is made up of a thin-film transistor array base-plate 103 and the top layer 104 with many data line 103a and sweep trace 103b, this top layer 104 is to make and cover described data line 103a and sweep trace 103b with insulating material, and has a smooth surperficial 104a, and this bistable state shows that film 106 constitutes the top of display 100, the unusual fluctuation of its display frame is to reach by the mode that changes electric field, display 100 has a system end 107 in addition, be used for detecting and judging the depressed position of this touch detection circuit structure 10, below the touch detection circuit structure 10 of explanation preferred embodiment of the present invention:
This touch detection circuit structure 10 is disposed at this substrate 102 and this bistable state shows between the film 106, and it includes many first electrodes 12, an insulation course 14 and many second electrodes 16, wherein:
Described first electrode 12 is set up in parallel on the surperficial 104a on this top layer 104 along first direction D1, the end face 121 of each first electrode 12 relatively should surface 104a be and be positioned at the certain altitude place, and first electrode 12 has long side 122 and long side 123 in abutting connection with this end face 121 edges, again, first electrode 12 of each in the present embodiment is distinctly to be electrically connected to this system end 107.
Being produced on of this insulation course 14 finished after described first electrode 12, this insulation course 14 covers the first all electrodes 12, and have an end face 141 and a plurality of perforation 142 that run through two sides, in the present embodiment, the mode that perforation 142 one first electrode 12 with a plurality of correspondences is arranged and is formed, please cooperate Fig. 1, shown in Figure 3, each bore a hole 142 in the A/F W1 on the second direction D2 greater than the corresponding first face width W2 of electrode 12 on second direction D2, in this definition, the end face 121 of first electrode 12 is to form one first surface of contact 10a over against the position of perforation 142; In addition, each perforation internal face of 142 be formed with the line of rabbet joint 143 and a line of rabbet joint 144 respectively between the long side 122 of corresponding first electrode 12 and the long side 123.
After finishing insulation course 14 making, in advance be manufactured with the supporting pad (figure does not show) that constitutes with insulating material in 142 prior to respectively boring a hole of insulation course 14, each supporting pad also is covered with the 142 first interior electrodes 12 of boring a hole, and is the application of general technology owing to make the mode of supporting pad, will not give unnecessary details in this; Thereafter, continue end face 141 depositing metal films in insulation course 14, again through steps such as photoresistance coating, exposure, development, etchings and make described second electrode 16, described second electrode 16 is along being set up in parallel with the orthogonal thereto second direction D2 of first direction D1, and distinctly is electrically connected to this system end 107; In above-mentioned technology, the height of supporting pad is lower than the end face 141 of insulation course 14, therefore cause second electrode 16 to form a contact jaw 161 corresponding to the position of perforation 142, be to be one " U " type in present embodiment, it is shown in Figure 4 to continue cooperation, the perforation 142 of present embodiment insulation course 14 is greater than second electrode, the 16 face width W4s of contact jaw 161 on first direction D1 in the A/F W3 on the first direction D1, this design is to be convenient removing operation for supporting pad, and after removing this supporting pad that constitutes with insulating material, make contact jaw 161 be hanging shape, and contact jaw 161 constitutes one second surface of contact 10b in the face of the one side of first electrode 12, the second surface of contact 10b and with the corresponding first surface of contact 10a of institute between possess a spacing;
Explanation is in addition, the height of the kenel Shang Keyin supporting pad of second electrode flushes with the end face 141 of insulation course 14, and acquisition straight second electrode 17 to extension as shown in Figure 5, again when the supporting pad height exceeds insulation course 14 end faces 141, with second electrode 18 that shows the recess 181 that film 106 is absorbed in towards this bistable state that has that makes as shown in Figure 6, and be the contact effect of strengthening between the electrode, can be in the lump when making this recess 181 an one-body molded projection 182, and also be manufactured with a projection 124 in first electrode, 12 corresponding positions.
In the above-described embodiments, press power when bistable state shows film 106 surfaces when imposing an outside, this presses contact jaw 161 distortion that power will cause second electrode 16 at the position of touching, cause the corresponding first surface of contact 10a and the impedance effect that has a resistance of second surface of contact 10b contact, at this moment, this system end 107 will be judged pressure effect position apace because of the variation of current impedance, so that the controlling of follow-up demonstration.
As shown in the above description, the present invention is made in display 100 inside with the detection circuit structure 10 of touch-control sensing in built-in mode, the shortcoming that can solve known add mode beyond the contact panel is made and cause integral thickness and weight to increase, and can't have influence on the optics display effect that bistable state shows film 106; Moreover, first electrode of the present invention, 12 corresponding each 142 position of boring a hole are reserved with the line of rabbet joint 143 and the line of rabbet joint 144, may cause from boring a hole the chip of 142 periphery avalanches, so that keep good touch-control sensing relation between the first surface of contact 10a and the second surface of contact 10b because of pressing so that collect.
In addition, first electrode 12 of present embodiment is corresponding to directly over the data line 103a, 16 at second electrode is corresponding to directly over the sweep trace 103b, only, its grade also must be made into be positioned at data line 103a and sweep trace 103b interweave the pixel region 103c that forms directly over the position; Secondly, the perforation 142 of insulation course 14 is not necessary with first electrode 12 of corresponding each bar, for example, can be with corresponding one first electrodes 12 of a row perforation 142, an inferior row's 142 of perforation are that to skip one first electrode, 12 backs corresponding with another first electrode 12; Moreover, for improving the binding yield that bistable state shows film 106, structure of the present invention can be as shown in Figure 7, the overlayer 191 that constitutes with an insulating material covers described second electrode 16 in advance, make a flatness layer 192 afterwards again and cover this overlayer 191, these flatness layer 192 surfaces provide this bistable state to show film 106 certain smooth combinations.
Explanation is again, each first electrode 12 of the present invention and each second electrode 16 are except distinctly being electrically connected to this system end 107, can be that one group mode is divided into a plurality of hiving off also with many, as shown in Figure 8, after each electrode that hives off electrically connects in advance mutually, be external to this system end 107 in end again, mandatory declaration be, aforementioned each central article one first of hiving off, the second electrode 12a, 16a is to last bar first, the second electrode 12b, the distance of 16b is to be less than or equal to 0.7 centimeter, this design is to gather because of electrode is careful, when with finger when pressing, the finger tip front end touches contains width at the most about about 0.7 centimeter, therefore, this mode of hiving off is enough to correctly detect and induce the ad-hoc location that touches for this system end 107; Again, the annexation of electrode and system end 107, still can adopt the interval mode design as shown in Figure 9, only, electrode number at interval be not restriction with one, distance must so press the position so that system end 107 can correctly detect between the electrode of system end 107 in 0.7 centimeter but be connected with; Certainly, also can be under the framework of Fig. 2, selection with the distance setting of two adjacent first electrodes 12 and two adjacent second electrodes 16 smaller or equal to 0.7 centimeter scope, to be applicable to the finger is the occasion use of touch-control, relative, if being applied in similar nib is that the occasion of touch-control is used, then should be designed to the distance of two adjacent first, second electrodes 12,16 more tight.
In above-mentioned all embodiment, second surface of contact of second electrode is the A/F of perforation on first direction less than insulation course in the face width on the first direction, the effect of this feature is to be convenient to removing with the supporting pad of insulating material formation, only reach the structure of aforementioned purpose not as limit, promptly be another example as shown in figure 10, wherein, the perforation 21 of insulation course 20 is the face width of contact jaw 221 on first direction D1 less than second electrode 22 in the A/F on the first direction D1, again, second electrode 22 has a recess 222 and forms a breach 223 and an exterior respectively in the both sides of recess 222 in respectively bore a hole 21 one side of correspondence, so, so that follow-up removing operation to supporting pad, similarly, recess 222 inner faces of second electrode 22 also can be manufactured with a projection 224, and first surface of contact 241 of first electrode 24 also is manufactured with a projection 242 at relative position, to strengthen the contact effect between the electrode.
The above only is a preferable possible embodiments of the present invention, and the equivalent structure that every application instructions of the present invention and claim are done changes, and ought to be included in the claim scope of the present invention.
Claims (18)
1, a kind of touch detection circuit structure that is used for bistable electronic display, the bistable state demonstration film that this display has a substrate and is located at this substrate top, this touch detection circuit structure is disposed at this substrate and this bistable state shows between the film, it is characterized in that it includes:
Many first electrodes that are set up in parallel along first direction, the described first electrode end face has at least one first surface of contact;
One insulation course shows that at described first electrode and this bistable state this insulation course has first surface of contact of corresponding first electrode of a plurality of perforation between the film; And
Many second electrodes show between the film at this insulation course and this bistable state, described second electrode is along being set up in parallel with the staggered second direction of first direction, and second electrode forms a contact jaw corresponding to each site of perforation, this contact jaw does not cover perforation fully and has one second surface of contact, and this second surface of contact is also possessed a spacing with it in the face of first surface of contact of first electrode.
2, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein this insulation course has an end face, described second electrode is located at the end face of this insulation course, and the perforation of this insulation course is in second surface of contact the face width in first direction on of the A/F on the first direction greater than second electrode.
3, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 2 is characterized in that, the contact jaw of wherein said second electrode stretches in the perforation of this insulation course.
4, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 2 is characterized in that, the contact jaw of wherein said second electrode has a recess in the one side of correspondence perforation.
5, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 4 is characterized in that, the contact jaw of wherein said second electrode also includes a projection, and this projection is connected on the concave surface of this recess.
6, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 5 is characterized in that, wherein the projection position of corresponding second electrode of first surface of contact of first electrode has another projection.
7, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein this insulation course has an end face, described second electrode is located at the end face of this insulation course, the perforation of this insulation course is in contact jaw the face width in first direction on of the A/F on the first direction less than second electrode, and the contact jaw of other described second electrode has at least one breach and communicates with the perforation of this insulation course.
8, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 7, it is characterized in that, wherein said second electrode has a recess in the one side of each perforation of correspondence, this recess one side has this breach, and second electrode has first surface of contact of corresponding first electrode of a projection on the concave surface of recess.
9, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 8 is characterized in that, wherein the projection position of corresponding second electrode of first surface of contact of first electrode has another projection.
10, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein, first direction and second direction are orthogonal thereto, and the perforation of this insulation course is in first surface of contact the face width in second direction on of the A/F on the second direction greater than first electrode.
11, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 10, it is characterized in that, wherein the substrate of this display has a top layer, described first electrode is located at surface, this top layer and this surface elevation relatively, each first electrode has two long sides, this insulation course covers described first electrode, and the perforation internal face of insulation course with form a line of rabbet joint between the long side of corresponding first electrode.
12, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein said first electrode is that one group mode is divided into a plurality of hiving off with many, and article one first electrode during each hives off to the distance of last bar first electrode is less than or equal to 0.7 centimeter.
13, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein said second electrode is that one group mode is divided into a plurality of hiving off with many, and article one second electrode during each hives off to the distance of last bar second electrode is to be less than or equal to 0.7 centimeter.
14, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1 is characterized in that, wherein the distance of two adjacent first electrodes is less than or equal to 0.7 centimeter.
15, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1 is characterized in that, wherein the distance of two adjacent second electrodes is less than or equal to 0.7 centimeter.
16, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein said first electrode is divided into a plurality of hiving off, each hives off and is constituted and electrically connected by many first electrodes, and article one first electrode during each hives off to the distance of last bar first electrode is less than or equal to 0.7 centimeter.
17, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein said second electrode is divided into a plurality of hiving off, each hives off and is constituted and electrically connected by many second electrodes, and article one second electrode during each hives off to the distance of last bar second electrode is less than or equal to 0.7 centimeter.
18, the touch detection circuit structure that is used for bistable electronic display as claimed in claim 1, it is characterized in that, wherein also comprise an overlayer and a flatness layer that an insulating material constitutes, this overlayer covers described second electrode, and this flatness layer shows between the film at this overlayer and this bistable state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810128165A CN101634915A (en) | 2008-07-21 | 2008-07-21 | Touch detection circuit structure for bistable electronic display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810128165A CN101634915A (en) | 2008-07-21 | 2008-07-21 | Touch detection circuit structure for bistable electronic display |
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| Publication Number | Publication Date |
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| CN101634915A true CN101634915A (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810128165A Pending CN101634915A (en) | 2008-07-21 | 2008-07-21 | Touch detection circuit structure for bistable electronic display |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102221919A (en) * | 2010-04-19 | 2011-10-19 | 东莞万士达液晶显示器有限公司 | Touch panel |
| CN102298226A (en) * | 2010-06-22 | 2011-12-28 | 元太科技工业股份有限公司 | Bistable-state display |
| CN103165072A (en) * | 2011-12-15 | 2013-06-19 | 群康科技(深圳)有限公司 | Touch device and driving method thereof |
| US8681091B2 (en) | 2010-03-19 | 2014-03-25 | E Ink Holdings Inc. | Bistable display device |
| US8816970B2 (en) | 2010-02-12 | 2014-08-26 | Dongguan Masstop Liquid Crystal Display Co., Ltd. | Touch panel, touch display panel, and touch sensing method |
| CN103309511B (en) * | 2013-06-08 | 2016-04-13 | 深圳欧菲光科技股份有限公司 | Overline structure and electronic installation |
| CN111475064A (en) * | 2020-04-17 | 2020-07-31 | 深圳市鸿合创新信息技术有限责任公司 | Transparent coil plate and manufacturing method thereof, transparent electromagnetic induction plate and display device |
-
2008
- 2008-07-21 CN CN200810128165A patent/CN101634915A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8816970B2 (en) | 2010-02-12 | 2014-08-26 | Dongguan Masstop Liquid Crystal Display Co., Ltd. | Touch panel, touch display panel, and touch sensing method |
| US8681091B2 (en) | 2010-03-19 | 2014-03-25 | E Ink Holdings Inc. | Bistable display device |
| CN102221919A (en) * | 2010-04-19 | 2011-10-19 | 东莞万士达液晶显示器有限公司 | Touch panel |
| CN102298226A (en) * | 2010-06-22 | 2011-12-28 | 元太科技工业股份有限公司 | Bistable-state display |
| CN102298226B (en) * | 2010-06-22 | 2014-05-14 | 元太科技工业股份有限公司 | Bistable-state display |
| CN103165072A (en) * | 2011-12-15 | 2013-06-19 | 群康科技(深圳)有限公司 | Touch device and driving method thereof |
| CN103165072B (en) * | 2011-12-15 | 2015-06-24 | 群康科技(深圳)有限公司 | Touch device and driving method thereof |
| CN103309511B (en) * | 2013-06-08 | 2016-04-13 | 深圳欧菲光科技股份有限公司 | Overline structure and electronic installation |
| CN111475064A (en) * | 2020-04-17 | 2020-07-31 | 深圳市鸿合创新信息技术有限责任公司 | Transparent coil plate and manufacturing method thereof, transparent electromagnetic induction plate and display device |
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Open date: 20100127 |