CN205247362U - Narrow frame capacitive touch panel - Google Patents
Narrow frame capacitive touch panel Download PDFInfo
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- CN205247362U CN205247362U CN201520972394.7U CN201520972394U CN205247362U CN 205247362 U CN205247362 U CN 205247362U CN 201520972394 U CN201520972394 U CN 201520972394U CN 205247362 U CN205247362 U CN 205247362U
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- touch screen
- collecting electrode
- capacitance touch
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Abstract
The utility model discloses a narrow frame capacitive touch panel. This narrow frame capacitive touch panel includes film base plate, sets up ITO emitting electrode, ITO collecting electrode and drive IC chip on film base plate, being equipped with on narrow frame capacitive touch panel's the last frame position and driving a plurality of emitting electrode links and a plurality of collecting electrode link that the IC chip links to each other, be equipped with a plurality of response overlap joint points on the lower frame position, response overlap joint point links to each other with the collecting electrode link through the response passageway, ITO emitting electrode links to each other with the emitting electrode link, and the ITO collecting electrode links to each other with collecting electrode link or response overlap joint point. The utility model provides a narrow frame capacitive touch panel makes simple process, and can be favorable to ensureing finished product yield and improve production efficiency, and the frame narrows down about can making.
Description
Technical field
The utility model relates to capacitance touch screen field, relates in particular to a kind of narrow frame capacitance touch screen.
Background technology
Along with the extensive use of the electronic product such as smart mobile phone, panel computer and the development of touch screen technology,Touch-screen applications is to the electronic products such as smart mobile phone, panel computer, navigation system, man-machine to realizeInteractive function has become the trend of current electronic product development. Along with smart mobile phone, panel computer, navigationThe electronic product screen enlarging development trends such as system are day by day remarkable, and corresponding touch-screen is to large scale future developmentTrend also day by day obvious.
The structure of the capacitance touch screen of existing large-sized GF1 structure as shown in Figure 1. This capacitance touch screenThe film comprise film substrate 10, be arranged on ITO line layer 20 on film substrate 10 and with ITO lineThe elargol line floor 30 that road floor 20 is connected and being arranged on is connected with elargol line floor 30 on film substrate 10Driving IC chip 40. Wherein, ITO line layer 20 comprises ITO emission electrode 21 and ITO collecting electrode22, elargol line layer 30 comprises the driving passage 31 and the induction channels 32 that are connected with driving IC chip 40,ITO emission electrode 21 with drive passage 31 by driving overlapped points 33 to be connected, ITO collecting electrode 22 andInduction channels 32 is connected by induction overlapped points 34.
As shown in Figures 1 and 2, drive passage 31 and induction channels 32 limit, left and right from capacitance touch screenFrame lead-out wiring and being connected with ITO collecting electrode 22 with ITO emission electrode 21 respectively; And ITO sends outThe radio utmost point 21 is connected by driving overlapped points 33 with driving passage 31, and ITO collecting electrode 22 is logical with inductionRoad 32 is connected by induction overlapped points 34, and each drives overlapped points 33 and induction overlapped points 34 to need certainOverlap joint area and need to keep certain safe distance, make the left and right side frame of capacitance touch screen occur large faceLong-pending cabling, frame cabling is too fat to move, and capacitance touch screen border width is increased, and profile is not attractive in appearance. AllSignalling channel (driving passage 31 and induction channels 32) all lays out from left and right side frame, makes a capacitance touch screen left sideLeft frame size is relatively large, and each induction channels 32 all will be passed by insulation 35 jumpers of putting up a bridgeDrive passage 31 to cause outside outlet, left and right sides wire jumper area is strengthened, manufacturing process complexity and efficiencyLow, and finished product yield is lower.
Understandably, existing capacitance touch screen also comprise with the film (comprise film substrate 10 and arrangeITO line layer 20, elargol line layer 30 and driving IC chip 40 on film substrate 10) pass through OCAThe cover-plate glass 60 (as shown in Figure 3) of optical cement laminating. Cover-plate glass 60 comprises visible area 61 and arrangesIn the ink area 62 of visible area 61 bezel locations, cover-plate glass 60 is being incorporated into product (as intelligent handMachine) when housing, need to adopt gluing process laminating, make the ink area 62 phase contrapositions with cover-plate glass 60On the film of putting, form and have a tree lace road 63. Existing capacitance touch screen is left and right side frame cabling mode, makesPart signal passage (driving passage 31 and induction channels 32) is overlapping with some tree lace road 63, and complete machine fallsTest easily destroys elargol line layer 30, and causes driving passage 31 and/or induction channels 32 risk of opening a way to increaseGreatly.
Utility model content
The technical problems to be solved in the utility model is, for existing capacitance touch screen left and right side frame cabling,Make the frame size of capacitance touch screen larger, and complex manufacturing technology, efficiency is low, finished product yield is lowProblem, provides a kind of narrow frame capacitance touch screen.
The utility model solves the technical scheme that its technical problem adopts: a kind of narrow frame capacitance touchScreen, comprise film substrate, be arranged on ITO emission electrode on described film substrate, ITO collecting electrode andDriving IC chip; It is characterized in that, the upper side frame position of described narrow frame capacitance touch screen is provided with and instituteState some emission electrode links and some collecting electrode links that driving IC chip is connected, lower frame positionBe set up and be provided with some induction overlapped points, described induction overlapped points connects by induction channels and described collecting electrodeConnecing end is connected; Described ITO emission electrode is connected with described emission electrode link, and described ITO receives electricityThe utmost point is connected with described collecting electrode link or described induction overlapped points.
Preferably, described induction channels is arranged on described narrow frame capacitance touch screen left and right side frame place, and pointWith near the described collecting electrode link of left frame and left frame be not connected.
Preferably, described ITO collecting electrode and described induction overlapped points junction are provided with insulating barrier.
Preferably, described narrow frame capacitance touch screen also comprises that the ground connection being connected with described driving IC chip connectsThe earth electrode that connects end, is connected with described grounding connection end.
Preferably, described narrow frame capacitance touch screen also comprises cover-plate glass, and cover-plate glass comprises visible areaWith the ink area that is arranged on visible area bezel locations.
Preferably, the live width of described ITO emission electrode is 280-320um; The line of described ITO collecting electrodeWide is 90-110um; The live width of described induction channels is 140-160um.
Preferably, the live width of described ITO emission electrode is 300um; The live width of described ITO collecting electrode is100um; The live width of described induction channels is 150um.
The utility model compared with prior art tool has the following advantages: implement the utility model, by narrowThe upper side frame position of frame capacitance touch screen arranges the some emission electrode links that are connected with driving IC chipWith some collecting electrode links, lower frame position arranges with collecting electrode link by induction channels phaseThe induction overlapped points connecting. ITO emission electrode is directly connected with emission electrode link, makes ITO transmitting electricityThe lead-out wire of the utmost point is drawn from upper side frame, makes to a certain extent left and right side frame narrow; And without by drivingMoving overlapped points is connected with driving IC chip after being connected to and driving passage, saves and drives passage to make and connection workOrder, makes its manufacture craft simple, and enhances productivity and finished product yield. ITO collecting electrode be arranged onThe collecting electrode link of upper side frame position or be arranged on lower frame position induction overlapped points be connected, makeThe lead-out wire of ITO collecting electrode is drawn from upper side frame or lower frame, thereby makes left and right sides frame cabling areaDwindle, its left and right sides frame is narrowed, to realize narrow frame object. Because the utility model providesNarrow frame capacitance touch screen in by adopting induction channels to connect induction overlapped points and collecting electrode link,There is not driving passage, put up a bridge and can realize ITO collecting electrode and be connected with collecting electrode without insulation is setConnection between end, thus the complexity of reduction manufacturing process improves product yield.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is a structural representation of capacitance touch screen in prior art.
Fig. 2 is the enlarged drawing of A in Fig. 1.
Fig. 3 is a structural representation of the cover-plate glass of capacitance touch screen in prior art.
Fig. 4 is a structural representation of narrow frame capacitance touch screen in the utility model one embodiment.
Fig. 5 is the enlarged drawing of B in Fig. 4.
Fig. 6 is the enlarged drawing of C in Fig. 4.
Fig. 7 is another structural representation of narrow frame capacitance touch screen in the utility model one embodiment.
In figure: 10, film substrate; 20, ITO line layer; 21, ITO emission electrode; 22, ITO connectsReceive electrode; 23, earth electrode; 30, elargol line layer; 31, drive passage; 32, induction channels; 33,Drive overlapped points; 34, induction overlapped points; 35, insulation is put up a bridge; 40, driving IC chip; 41, transmittingElectrode link; 42, collecting electrode link; 43, grounding connection end; 50, insulating barrier; 60, lidGlass sheet; 61, visible area; 62, ink area; 63, some tree lace road.
Detailed description of the invention
Understand existing contrast for technical characterictic of the present utility model, object and effect being had more clearlyAccompanying drawing describes detailed description of the invention of the present utility model in detail.
Fig. 4-Fig. 6 illustrates the narrow frame capacitance touch screen in the present embodiment. This narrow frame capacitance touch screenThe film comprises film substrate 10, be arranged on ITO line layer 20 on film substrate 10 and with ITO circuitLayer 20 connected elargol line layer 30 and being arranged on film substrate 10 and driving that elargol line layer 30 is connectedMoving IC chip 40. Wherein, ITO line layer 20 comprise along Y-direction arrange ITO emission electrode 21,The ITO collecting electrode 22 and the earth electrode 23 that arrange along directions X. Elargol line layer 30 comprises and drive ICThe induction channels 32 that chip 40 is connected. The upper side frame position of narrow frame capacitance touch screen is provided with and drivesSome emission electrode links 41, some collecting electrode links 42 and ground connection that IC chip 40 is connected connectConnect end 43; Wherein, earth electrode 23 is connected with grounding connection end 43. Under narrow frame capacitance touch screenBezel locations is provided with some induction overlapped points 34, and induction overlapped points 34 is by induction channels 32 and receptionElectrode link 42 is connected, and wherein, induction channels 32 adopts elargol line to be made, induction overlapped points34 for ITO collecting electrode 22 is connected to induction channels 32, connects to realize signal.
As shown in Figure 4, Figure 5, ITO emission electrode 21 connects with the emission electrode that is arranged on upper side frame positionConnect end 41 and be directly connected, thereby the lead-out wire of ITO emission electrode 21 is drawn from upper side frame, therebyLeft and right side frame is narrowed; And without by driving overlapped points 33 to be connected to drive after passage 31 and drivingIC chip 40 is connected, and saves and drives passage 31 make and connect operation, makes its manufacture craft simple, andEnhance productivity and finished product yield.
As shown in Figure 5, Figure 6, ITO collecting electrode 22 connects with the collecting electrode that is arranged on upper side frame positionThe induction overlapped points 34 that connects end 42 or be arranged on lower frame position is connected, and makes ITO collecting electrode 22Lead-out wire is drawn from upper side frame or lower frame, thereby makes left and right sides frame cabling area reducing, makes its left sideRight both sides frame narrows. In the present embodiment, the ITO collecting electrode 22 on the ITO of rectangle line layer 20Can be divided into the ITO collecting electrode 22 of form part and the ITO collecting electrode 22 of lower form part, wherein,The ITO collecting electrode 22 of upper form part is connected with the collecting electrode link 42 of upper side frame position, underThe ITO collecting electrode 22 of form part is connected with the induction overlapped points 34 of lower frame position, to avoid ITOThe circuit of collecting electrode 22 is long and cause impedance excessive, thereby affects the sensitivity of finished product touch-screen.
Because longer its impedance of ITO line is larger, in the present embodiment, ITO emission electrode 21 is complete along Y-directionScreen arranges, and ITO collecting electrode 22 is in upper form part and the lower form part of the ITO of rectangle line layer 20Arrange respectively, make the length of ITO emission electrode 21 much larger than the length of ITO collecting electrode 22, forEnsure the normal work of ITO line layer 20, need make the live width of ITO emission electrode 21 be greater than ITO receptionThe live width of electrode 22. Particularly, the live width of ITO emission electrode 21 is 280-320um; ITO receives electricityThe live width of the utmost point 22 is 90-110um; The live width of induction channels 32 is 140-160um, to ensure ITO lineThe normal work of road floor 20. In the present embodiment, it is 80Kohm that driving IC chip 40 can adopt impedance thresholdFT5306i chip or the impedance threshold ZT7538 chip that is 200Kohm; Correspondingly, ITO transmitting electricityThe live width of the utmost point 21 is 300um, and the live width of ITO collecting electrode 22 is 100um, the live width of induction channels 32For 150um.
Particularly, induction channels 32 is arranged on narrow frame capacitance touch screen left and right side frame place, and respectively with lean onThe collecting electrode link 42 of nearly left frame and left frame is connected, to dwindle left and right side frame area. Can manageXie Di, owing to being only provided with on the left and right side frame of this narrow frame capacitance touch screen for connecting induction overlapped points 34With the induction channels 32 of collecting electrode link 42, drive passage 31 and be not provided with, to a certain extentLeft and right side frame is narrowed. In addition, because emission electrode link 41 and collecting electrode link 42 arrangeOn top, on frame, induction overlapped points 34 is arranged on lower frame, without reserved corresponding on left and right side framePosition also keeps a safe distance, thereby its left and right side frame area is further dwindled, and makes narrow frame electric capacityTouch-screen profile is more attractive in appearance.
Particularly, ITO collecting electrode 22 is provided with insulating barrier 50 with induction overlapped points 34 junctions, to keep awayExempt from 34 or many induction channels 32 of ITO collecting electrode 22 and multiple induction overlapped points and be connected, thereby causeCannot realize touch sensing function.
Owing to taking by only adopting induction channels 32 to connect induction in the narrow frame capacitance touch screen in the present embodimentContact 34 and collecting electrode link 42, do not exist and drive passage 31, puts up a bridge 35 without insulation is setCan realize being connected between ITO collecting electrode 22 and collecting electrode link 42, thereby reduce workerThe complexity of skill, improves product yield.
This narrow frame capacitance touch screen, in the time making, need fit to cover plate glass by OCA optical cement by the filmOn glass 60. Cover-plate glass 60 comprises visible area 61 and is arranged on the ink area of visible area 61 bezel locations62, ITO line layer 20 is arranged in the visible area 61 of cover-plate glass 60, elargol line layer 30 and drivingIC chip 40 is arranged in the ink area 62 of cover-plate glass 60. As shown in Figure 7, when by the present embodimentNarrow frame capacitance touch screen while being incorporated into product shell by gluing process, some tree lace road 63 is arranged on lidIn the ink area 62 of glass sheet 60, and not with the induction channels 32 of narrow frame capacitance touch screen the right and leftOverlapping, thus the destroyed risk of induction channels 32 on elargol line layer 30 reduced.
The utility model describes by above-mentioned specific embodiment, and those skilled in the art should be brightIn vain, in the situation that not departing from the utility model scope, can also carry out various conversion to the utility modelBe equal to alternative. In addition, for particular condition or concrete condition, can do various repairing to the utility modelChange, and do not depart from scope of the present utility model. Therefore, the utility model is not limited to disclosed concreteEmbodiment, and should comprise the whole embodiments that fall within the scope of the utility model claim.
Claims (7)
1. a narrow frame capacitance touch screen, comprises film substrate (10), is arranged on described film substrate(10) ITO emission electrode (21), ITO collecting electrode (22) and driving IC chip (40) on;It is characterized in that, the upper side frame position of described narrow frame capacitance touch screen is provided with and described driving IC chip(40) the some emission electrode links (41) and the some collecting electrode links (42) that are connected, belowFrame position is provided with some induction overlapped points (34), and described induction overlapped points (34) is by induction channels (32)Be connected with described collecting electrode link (42); Described ITO emission electrode (21) and described transmitting electricityUtmost point link (41) is connected, described ITO collecting electrode (22) and described collecting electrode link (42)Or described induction overlapped points (34) is connected.
2. narrow frame capacitance touch screen according to claim 1, is characterized in that, described induction is logicalRoad (32) is arranged on described narrow frame capacitance touch screen left and right side frame place, and respectively with near left frame andThe described collecting electrode link (42) of left frame is connected.
3. narrow frame capacitance touch screen according to claim 1, is characterized in that, described ITO connectsReceive electrode (22) and be provided with insulating barrier (50) with described induction overlapped points (34) junction.
4. narrow frame capacitance touch screen according to claim 1, is characterized in that, described narrow frameCapacitance touch screen also comprises the grounding connection end (43) and the institute that are connected with described driving IC chip (40)State the connected earth electrode (23) of grounding connection end (43).
5. narrow frame capacitance touch screen according to claim 1, is characterized in that, described narrow frameCapacitance touch screen also comprises cover-plate glass (60), and cover-plate glass (60) comprises visible area (61) and is arranged on canThe ink area (62) of vision area (61) bezel locations.
6. according to the narrow frame capacitance touch screen described in claim 1-5 any one, it is characterized in that instituteThe live width of stating ITO emission electrode (21) is 280-320um; The live width of described ITO collecting electrode (22)For 90-110um; The live width of described induction channels (32) is 140-160um.
7. according to the narrow frame capacitance touch screen described in claim 6 any one, it is characterized in that, described inThe live width of ITO emission electrode (21) is 300um; The live width of described ITO collecting electrode (22) is 100um;The live width of described induction channels (32) is 150um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972394.7U CN205247362U (en) | 2015-11-30 | 2015-11-30 | Narrow frame capacitive touch panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520972394.7U CN205247362U (en) | 2015-11-30 | 2015-11-30 | Narrow frame capacitive touch panel |
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| CN205247362U true CN205247362U (en) | 2016-05-18 |
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| CN201520972394.7U Active CN205247362U (en) | 2015-11-30 | 2015-11-30 | Narrow frame capacitive touch panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111648A (en) * | 2017-12-21 | 2018-06-01 | 上海闻泰电子科技有限公司 | Narrow frame touch screen corded arrangement and mobile phone |
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- 2015-11-30 CN CN201520972394.7U patent/CN205247362U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111648A (en) * | 2017-12-21 | 2018-06-01 | 上海闻泰电子科技有限公司 | Narrow frame touch screen corded arrangement and mobile phone |
| CN108111648B (en) * | 2017-12-21 | 2020-11-10 | 上海闻泰电子科技有限公司 | Narrow-frame touch screen connection scheme and mobile phone |
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