CN102331870B - Touch panel and touch display unit - Google Patents
Touch panel and touch display unit Download PDFInfo
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- CN102331870B CN102331870B CN201010225190.9A CN201010225190A CN102331870B CN 102331870 B CN102331870 B CN 102331870B CN 201010225190 A CN201010225190 A CN 201010225190A CN 102331870 B CN102331870 B CN 102331870B
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- sensing
- transmission line
- connection pad
- wafer
- link
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Abstract
The invention provides a touch panel and a touch display unit. The touch panel is provided with a sensing area and a wafer contact area positioned on one corner of the sensing area. The touch panel comprises first sensing strips, second sensing strips, first transmission lines and second transmission lines. Each first sensing strip is positioned in the sensing area and extends along a first direction. Each second sensing strip is positioned in the sensing area and extends along a second direction. The first transmission lines and the second transmission lines are positioned outside the sensing area and respectively connected with the first sensing strips and the second sensing strips. A first pad-connecting end of each first transmission line and a second pad-connecting end of each second transmission line are positioned in the wafer contact area. The extending tracks of all the first sensing strips on the first direction do not intersect with any of the second transmission lines, and the extending tracks of all the second sensing strips on the second direction do not intersect with any of the first transmission lines.
Description
Technical field
The present invention relates to a kind of contact panel and touch control display apparatus, and be particularly related to a kind of contact panel and touch control display apparatus with many sensing bars.
Background technology
In recent years, various electronic product all constantly strides forward towards the direction of easy and simple to handle, small size and screen sizes, and particularly portable electronic product is more strict for the requirement of volume and screen size.Therefore, many electronic products are all integrated contact panel and display panels, to omit the required space of keyboard or operational and controlled key button, and then make the configurable enlarged areas of screen.
At present, contact panel roughly can be divided into the contact panels such as resistance-type, condenser type, infrared-type and ultrasonic formula, wherein take electric resistance touch-control panel and capacitance type touch-control panel as modal product.With regard to capacitance type touch-control panel, characteristic that can multi-point touch provides more humane operator scheme and makes capacitance type touch-control panel be subject to gradually the favor in market.With electric resistance touch-control panel, no matter user touches contact panel with which kind of medium can operate, thereby has improved the ease of use of contact panel.In addition, the required cost of electric resistance touch-control panel is lower and electric resistance touch-control panel technical development is comparatively ripe, thereby market share is higher.
With regard to prior art, capacitance type touch-control panel or electric resistance touch-control panel can adopt many sensing bars to realize the function of touch-control sensing no matter.The sensing bar of different directions need to be by the connection of plurality of transmission lines to be electrically connected to driving wafer.Therefore, the signal transmission quality of each sensing bar of the configuration affects of transmission line.
Summary of the invention
The invention provides a kind of contact panel, contribute to reduce the resistance value of the transmission line of maximum impedance.
The invention provides a kind of touch control display apparatus, being designed with of its contact panel helps reduce the degree of difficulty driving.
The present invention proposes a kind of contact panel, has a wafer contact region in a corner of a sensing area and contiguous sensing area.Contact panel comprises many first sensing bars, many second sensing bars, many first transmission lines and many second transmission lines.Each first sensing bar is arranged in sensing area, and extends along a first direction.Each second sensing bar is arranged in sensing area, and extends along a second direction, and first direction and second direction intersect.The first transmission line and the second transmission line are positioned at outside sensing area.Each first transmission line has one first link and one first connection pad end.Each second transmission line has one second link and one second connection pad end.The first link is connected to a wherein first sensing bar, and the first connection pad end is arranged in wafer contact region.The second link is connected to a wherein second sensing bar, and the second connection pad end is arranged in wafer contact region.All the first sensing bars extension track in a first direction can not intersect with any second transmission line, and the extension track of all the second sensing bars in second direction can not intersect with any first transmission line.
A kind of touch control display apparatus of the another proposition of the present invention, it comprises aforesaid contact panel and a display panel.Together with display panel stands in contact panel group, and a driving wafer of display panel is arranged at outside wafer contact region.
In one embodiment of this invention, above-mentioned contact panel also comprises a driving wafer, and it is arranged in wafer contact region and is electrically connected the first connection pad end and the second connection pad end.
In one embodiment of this invention, the spacing of the first above-mentioned link is greater than the spacing of the first connection pad end.
In one embodiment of this invention, the spacing of the second above-mentioned link is greater than the spacing of the second connection pad end.
In one embodiment of this invention, the first above-mentioned link is positioned at one first side of sensing area, and the second link is positioned at one second side of sensing area, and corner is sandwiched between the first side and this second side.
Based on above-mentioned, the present invention by the connection pad end concentrated setting of all transmission lines in corner to define wafer contact region.So the routing path of each transmission line is in fact only positioned at a side of sensing area, and contribute to reduce the transfer impedance of the transmission line of maximum impedance.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 be one embodiment of the invention contact panel on look schematic diagram.
Fig. 2 be a kind of contact panel on look schematic diagram.
Fig. 3 is the schematic diagram of the touch control display apparatus of one embodiment of the invention.
Fig. 4 looks schematic diagram on the contact panel of another embodiment of the present invention.
Fig. 5 looks schematic diagram on the contact panel of another embodiment of the present invention.
Main element symbol description:
120,320,420: the second sensing bars 130,330,430: the first transmission lines
134: the first connection pad ends of 132: the first links
144: the second connection pad ends of 142: the second links
150,212: drive wafer 200: touch control display apparatus
210: display panel 350,450: the three transmission lines
360,460: the four transmission line As, As ': sensing area
D1: first direction D2: second direction
S1: the first side S2: the second side
100,100 ', 300,400: contact panel
Ac, Ac ', Ac1, Ac2: wafer contact region
110,110 ', 310,410: the first sensing bars
140,140 ', 340,440: the second transmission lines
Embodiment
Fig. 1 be one embodiment of the invention contact panel on look schematic diagram, and look schematic diagram on Fig. 2 is a kind of contact panel.Please also refer to Fig. 1, contact panel 100 has a sensing area As and a wafer contact region Ac.The corner of the contiguous in fact corresponding sensing area As of wafer contact region Ac.Contact panel 100 comprises many first sensing bars 110, many second sensing bars 120, many first transmission lines 130 and many second transmission lines 140.The first sensing bar 110 and the second sensing bar 120 are all arranged in sensing area As.The first transmission line 130 and the second transmission line 140 are all positioned at outside sensing area As.
In the present embodiment, each first sensing bar 110 extends along a second direction D2 along a first direction D1 extension and each second sensing bar 120, and first direction D1 and second direction D2 intersect.First direction D1 can be to be in fact perpendicular to one another with second direction D2, or oblique.The first sensing bar 110 can be to be connected in series by a plurality of sensing electrodes the sensing bar forming with the second sensing bar 120 separately, can be also the sensing electrode bar of strip pattern.Contact panel 100 can be realized touch-control sensing function by the capacitance variations between the first sensing bar 110 and the second sensing bar 120, namely adopts capacitance type touch control sensing method.In addition, contact panel 100 also can be realized touch-control sensing by the conduction impedance between the first sensing bar 110 and the second sensing bar 120, namely electric resistance touch-control sensing method.In other words, which kind of mode do not need to limit especially the sensing mode of contact panel 100 are to the present embodiment.
Each first transmission line 130 has one first link 132 and one first connection pad end 134.Similarly, each second transmission line 140 has one second link 142 and one second connection pad end 144.The first link 132 is positioned at the one first side S1 of sensing area As and is connected to a wherein first sensing bar 110.The second link 142 is positioned at the one second side S2 of sensing area As and is connected to a wherein second sensing bar 120.The first connection pad end 134 and the second connection pad end 144 are all arranged in wafer contact region Ac, and the driving wafer 150 of contact panel 100 is also disposed in wafer contact region Ac to be electrically connected to the first connection pad end 134 and the second connection pad end 144.
In the present embodiment, the spacing of the first link 132 is greater than the spacing of the first connection pad end 134, and the spacing of the second link 142 is greater than the spacing of the second connection pad end 144.That is to say, the configuration density of the first connection pad end 134 is relatively higher than the configuration density of the first link 132, and the configuration density of the second connection pad end 144 is relatively higher than the configuration density of the second link 142.Certainly, the configuration density of connection pad end can change with different design requirements, and not as limit.
As shown in Figure 1, Ac residing corner in wafer contact region is the folded corner of the first side S1 of sensing area As and the second side S2.So under design, the extension track of all the first sensing bars 110 on first direction D1 can not intersect with any second transmission line 140, and the extension track of all the second sensing bars 120 on second direction D2 can not intersect with any first transmission line 130.Therefore, maximum impedance person in these transmission lines (for example outermost the second transmission line 140 or outermost the first transmission line 130) can have compared with low impedance value, and contributes to alleviate the load that drives wafer 150.
In comparison, if the design of contact panel 100 as shown in Figure 2, in contact panel 100 ', wafer contact region Ac ', not corresponding to the corner of sensing area As ', has at least the routing path of part the second transmission line 140 ' need be extended to by the first side S1 of sensing area As ' the second side S2 of sensing area As '.That is to say, the extension track of the first sensing bar 110 ' will intersect with the second transmission line 140 '.Thus, in contact panel 100 ', the longest transmission line of routing path will be greater than the longest transmission line of routing path in contact panel 100 compared with length in impedance.
Particularly, outermost the second transmission line 140 in contact panel 100 ' ' routing path significantly than the wiring topology path length of outermost the second transmission line 140 in contact panel 100, simultaneously also than the wiring topology path length of outermost the first transmission line 130 in contact panel 100.Therefore,, under the design of same size, identical resolution, in the transmission line of contact panel 100, maximum impedance person can have relatively low resistance value.Because the transfer impedance of transmission line is larger, it will be larger driving the load of wafer 150.So being designed with of the present embodiment helps alleviate the load that drives wafer 150.Especially, panel size is larger, and resolution is when higher, and the design of the present embodiment drives using of wafer 150 loads more notable alleviating.
Fig. 3 is the schematic diagram of the touch control display apparatus of one embodiment of the invention.Please refer to Fig. 3, touch control display apparatus 200 comprises contact panel 100 and a display panel 210.Together with display panel 210 stands in 100 groups of contact panels, and a driving wafer 212 of display panel 210 is arranged on outside wafer contact region Ac.
Particularly, the design of contact panel 100 and element can be with reference to above-described embodiments, that is the driving wafer 150 of contact panel 100 is arranged on corner.So in the present embodiment, the driving wafer 212 of display panel 210 is positioned at different positions from the driving wafer 150 of contact panel 100.In the time of together with display panel 210 stands in 100 groups of contact panels, drive wafer 212 to be conducive to reduce the integral thickness of touch control display apparatus 200 with driving wafer 150 can not stack together.In addition, drive wafer 212 and drive the radiating effect of wafer 150 also comparatively desirable.
Above embodiment all be take contact panel 100 and is had a position and illustrate as example at the wafer contact region in corner Ac.But, in other embodiment, that contact panel can have is a plurality of (namely two or more than) is arranged at the wafer contact region in corner.
For example, on the contact panel that Fig. 4 is another embodiment of the present invention, look schematic diagram.Please refer to Fig. 4, contact panel 300 has a sensing area As and two plates contact region Ac1 and Ac2.Contact panel 300 comprises many first sensing bars 310, many second sensing bars 320, many first transmission lines 330, many second transmission lines 340, many articles of the 3rd transmission lines 350 and many articles of the 4th transmission lines 360.The first sensing bar 310 and the second sensing bar 320 are all arranged in sensing area As.The first transmission line 330, the second transmission line 340, the 3rd transmission line 350 and the 4th transmission line 360 are all positioned at outside sensing area Ac.The first transmission line 330 and the 3rd transmission line 350 connect respectively a wherein first sensing bar 310, and the second transmission line 340 and the 4th transmission line 360 connect respectively a wherein second sensing bar 320.
It is worth mentioning that, in the present embodiment, part the first sensing bar 310 is connected to the first transmission line 330, and other the first sensing bar 310 is connected to the 3rd transmission line 350.Similarly, part the second sensing bar 320 is connected to the second transmission line 340, and other the second sensing bar 320 is connected to the 4th transmission line 360.Meanwhile, wafer contact region Ac1 and wafer contact region Ac2 are all positioned at the corner of sensing area As.
The first transmission line 330, the second transmission line 340, the 3rd transmission line 350 and the equipping rules of the 4th transmission line 360 and the first transmission line 130, second transmission line 140 of previous embodiment are roughly the same.That is, transmission line corresponding to same wafer contact region Ac1, the extension track of all the first sensing bars 310 can not intersect with any second transmission line 340, and the extension track of all the second sensing bars 320 can not intersect with any first transmission line 330.Similarly, transmission line corresponding to same wafer contact region Ac2, the extension track of all the first sensing bars 310 can not intersect with any one article of the 4th transmission line 360, and the extension track of all the second sensing bars 320 can not intersect with any one article of the 3rd transmission line 350.
From above-described embodiment, such wire laying mode contributes to reduce the resistance value of maximum impedance person in these transmission lines and is conducive to reduce to drive the load of wafer.But, the present invention must not limit all sensing bars only has one end to be connected to transmission line.Fig. 5 looks schematic diagram on the contact panel of another embodiment of the present invention.Please refer to Fig. 5, contact panel 400 comprises many first sensing bars 410, many second sensing bars 420, many first transmission lines 430, many second transmission lines 440, many articles of the 3rd transmission lines 450 and many articles of the 4th transmission lines 460.The opposite end of each the first sensing bar 410 is connected to the first transmission line 430 and the 3rd transmission line 450 respectively, and the opposite end of each the second sensing bar 420 is connected to the second transmission line 440 and the 4th transmission line 460 respectively.
It is worth mentioning that, in the present embodiment, all transmission lines only distribute along a wherein side of sensing area As, and do not need to wind the line to opposite side.And wafer contact region Ac1 and wafer contact region Ac2 are positioned at the corner of sensing area As.That is to say, transmission line corresponding to same wafer contact region Ac1, the extension track of all the first sensing bars 410 can not intersect with any second transmission line 440, and the extension track of all the second sensing bars 420 can not intersect with any first transmission line 430.Similarly, transmission line corresponding to same wafer contact region Ac2, the extension track of all the first sensing bars 410 can not intersect with any one article of the 4th transmission line 460, and the extension track of all the second sensing bars 420 can not intersect with any one article of the 3rd transmission line 450.
Thereby, the present embodiment be designed with the resistance value that helps reduce maximum impedance person in transmission line.Certainly, immediately, the driving wafer of contact panel can be arranged at different positions to be conducive to reduce the overall volume of touch control display apparatus from the driving wafer of display panel for the contact panel of Fig. 4 and Fig. 5 and display panel group.
In sum, the present invention is arranged at the wafer contact region of contact panel in one corner of sensing area.Thus, the transmission line that is positioned at this both sides, corner only must be arranged on a wherein side of sensing area, and contributes to reduce the required length of arrangement wire of the longest transmission line of routing path.Therefore, wire laying mode of the present invention contributes to alleviate the load of the driving wafer of contact panel.In addition, immediately, the driving wafer of contact panel and the driving wafer of display panel can not stack together and contribute to reduce the thickness of touch control display apparatus for contact panel of the present invention and display panel group.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention, any affiliated those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the appended claim person of defining.
Claims (8)
1. a contact panel, is characterized in that, has a wafer contact region in a corner of a sensing area and contiguous described sensing area, and described contact panel comprises:
Many the first sensing bars, are arranged in described sensing area, and described in each, the first sensing bar extends along a first direction;
Many the second sensing bars, are arranged in described sensing area, and described in each, the second sensing bar extends along a second direction, and described first direction and described second direction intersect;
Many the first transmission lines, be positioned at outside described sensing area, and described in each, the first transmission line has one first link and one first connection pad end, described the first link is connected to a wherein first sensing bar, and described the first connection pad end is arranged in described wafer contact region, and the spacing of described the first link is greater than the spacing of described the first connection pad end; And
Many the second transmission lines, be positioned at outside described sensing area, and described in each, the second transmission line has one second link and one second connection pad end, described the second link is connected to a wherein second sensing bar, and described the second connection pad end is arranged in described wafer contact region, wherein the extension track of all the first sensing bars on described first direction can not intersect with any second transmission line, and the extension track of all the second sensing bars in described second direction can not intersect with any first transmission line.
2. contact panel according to claim 1, it is characterized in that, also comprise a driving wafer, be arranged in described wafer contact region and be electrically connected the described first connection pad end of the first transmission line described in each and the described second connection pad end of the second transmission line described in each.
3. contact panel according to claim 1, is characterized in that, the spacing of described the second link is greater than the spacing of described the second connection pad end.
4. contact panel according to claim 1, it is characterized in that, described the first link is positioned at one first side of described sensing area, and described the second link is positioned at one second side of described sensing area, and described corner is sandwiched between described the first side and described the second side.
5. a touch control display apparatus, is characterized in that, comprising:
Contact panel according to claim 1; And
One display panel, together with standing in described contact panel group, and a driving wafer of described display panel is arranged on outside described wafer contact region.
6. touch control display apparatus according to claim 5, is characterized in that, described contact panel also comprises a driving wafer, is arranged in described wafer contact region and is electrically connected described the first connection pad end and described the second connection pad end.
7. touch control display apparatus according to claim 5, is characterized in that, the spacing of described the second link is greater than the spacing of described the second connection pad end.
8. touch control display apparatus according to claim 5, it is characterized in that, described the first link is positioned at one first side of described sensing area, and described the second link is positioned at one second side of described sensing area, and described corner is sandwiched between described the first side and described the second side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010225190.9A CN102331870B (en) | 2010-07-12 | 2010-07-12 | Touch panel and touch display unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010225190.9A CN102331870B (en) | 2010-07-12 | 2010-07-12 | Touch panel and touch display unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102331870A CN102331870A (en) | 2012-01-25 |
| CN102331870B true CN102331870B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010225190.9A Expired - Fee Related CN102331870B (en) | 2010-07-12 | 2010-07-12 | Touch panel and touch display unit |
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| CN (1) | CN102331870B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311888A (en) * | 2007-05-25 | 2008-11-26 | 富士迈半导体精密工业（上海）有限公司 | Touch control type display apparatus |
| CN101655755A (en) * | 2009-09-17 | 2010-02-24 | 友达光电股份有限公司 | Touch control panel |
| CN101751182A (en) * | 2010-02-09 | 2010-06-23 | 友达光电股份有限公司 | Wiring method used for circuit board in touch panel |
-
2010
- 2010-07-12 CN CN201010225190.9A patent/CN102331870B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311888A (en) * | 2007-05-25 | 2008-11-26 | 富士迈半导体精密工业（上海）有限公司 | Touch control type display apparatus |
| CN101655755A (en) * | 2009-09-17 | 2010-02-24 | 友达光电股份有限公司 | Touch control panel |
| CN101751182A (en) * | 2010-02-09 | 2010-06-23 | 友达光电股份有限公司 | Wiring method used for circuit board in touch panel |
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| Publication number | Publication date |
|---|---|
| CN102331870A (en) | 2012-01-25 |
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