CN102331870A - Touch panel and touch display unit - Google Patents
Touch panel and touch display unit Download PDFInfo
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- CN102331870A CN102331870A CN2010102251909A CN201010225190A CN102331870A CN 102331870 A CN102331870 A CN 102331870A CN 2010102251909 A CN2010102251909 A CN 2010102251909A CN 201010225190 A CN201010225190 A CN 201010225190A CN 102331870 A CN102331870 A CN 102331870A
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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, with omission keyboard or the required space of operational and controlled key button, and then make the configurable enlarged areas of screen.
At present, contact panel roughly can be divided into contact panels such as resistance-type, condenser type, infrared-type and ultrasonic formula, is modal product with electric resistance touch-control panel and capacitance type touch-control panel wherein.With regard to capacitance type touch-control panel, but the characteristic of multi-point touch provides more humane operator scheme and make capacitance type touch-control panel receive the favor in market gradually.With electric resistance touch-control panel, no matter the user touches contact panel with which kind of medium can be operated, thereby has improved the ease of use of contact panel.In addition, the required cost of electric resistance touch-control panel is lower and the 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 borrow the connection of plurality of transmission lines to be electrically connected to the driving wafer.Therefore, the signal transmission quality of each bar sensing bar of the configuration affects of transmission line.
Summary of the invention
The present invention provides a kind of contact panel, helps to reduce the resistance value of the transmission line of maximum impedance.
The present invention provides a kind of touch control display apparatus, its contact panel be designed with the degree of difficulty that helps reduce 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.First transmission line and second transmission line are positioned at outside the 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.First link is connected to wherein one first sensing bar, and the first connection pad end is arranged in the wafer contact region.Second link is connected to wherein one second sensing bar, and the second connection pad end is arranged in the wafer contact region.The extension track of all first sensing bars on first direction can not intersect with any one second transmission line, and the extension track of all second sensing bars on second direction can not intersect with any one first transmission line.
The present invention proposes a kind of touch control display apparatus in addition, and it comprises an aforesaid contact panel and a display panel.Display panel stands in the contact panel group, and a driving wafer of display panel is arranged at outside the wafer contact region.
In one embodiment of this invention, above-mentioned contact panel comprises that also one drives wafer, and it is arranged in the wafer contact region and electrically connects 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 second link is positioned at one second side of sensing area, and the corner is sandwiched between first side and this second side.
Based on above-mentioned, the present invention concentrates the connection pad end of all transmission lines and is arranged at the corner to define the wafer contact region.So the routing path of each transmission line in fact only is positioned at a side of sensing area, and help to reduce the transfer impedance of the transmission line of maximum impedance.
For letting the above-mentioned feature and advantage of the present invention can be more obviously understandable, hereinafter is special lifts embodiment, and conjunction with figs. elaborates as follows.
Description of drawings
Fig. 1 is for looking synoptic diagram on the contact panel of one embodiment of the invention.
Fig. 2 is for looking synoptic diagram on a kind of contact panel.
Fig. 3 is the synoptic diagram of the touch control display apparatus of one embodiment of the invention.
Fig. 4 looks synoptic diagram on the contact panel of another embodiment of the present invention.
Fig. 5 looks synoptic diagram on the contact panel of another embodiment of the present invention.
The 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: 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 is for looking synoptic diagram on the contact panel of one embodiment of the invention, and Fig. 2 is for looking synoptic diagram on a kind of contact panel.Please earlier with reference 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 all are arranged in sensing area As.First transmission line 130 and second transmission line 140 all are positioned at outside the sensing area As.
In the present embodiment, each first sensing bar 110 extends along a second direction D2 along first direction D1 extension and each second sensing bar 120, and first direction D1 and second direction D2 intersect.First direction D1 can be in fact to be perpendicular to one another with second direction D2, or oblique.The first sensing bar 110 can be to be connected in series the sensing bar that forms by a plurality of sensing electrodes with the second sensing bar 120 separately, also can be the sensing electrode bar of strip pattern.Contact panel 100 can be realized the touch-control sensing function by the capacitance variations between the first sensing bar 110 and the second sensing bar 120, just adopts capacitance touching 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, just 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 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.First link 132 is positioned at the one first side S1 of sensing area As and is connected to wherein one first sensing bar 110.Second link 142 is positioned at the one second side S2 of sensing area As and is connected to wherein one second sensing bar 120.The first connection pad end 134 and the second connection pad end 144 all are arranged in wafer contact region Ac, and the driving wafer 150 of contact panel 100 also is disposed among the 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 first link 132 is greater than the spacing of the first connection pad end 134, and the spacing of second link 142 is greater than the spacing of the second connection pad end 144.That is to say that the configuration density of the first connection pad end 134 is relatively higher than the configuration density of first link 132, and the configuration density of the second connection pad end 144 is relatively higher than the configuration density of second link 142.Certainly, the configuration density of connection pad end can change with different design requirements, and not as limit.
Can know that by Fig. 1 the residing corner of Ac, wafer contact region is the first side S1 and the folded corner of the second side S2 of sensing area As.So design down; The extension track of all first sensing bars 110 on first direction D1 can not intersect with any one second transmission line 140, and the extension track of all second sensing bars 120 on second direction D2 can not intersect with any one first transmission line 130.Therefore, maximum impedance person in these transmission lines (for example outermost second transmission line 140 or outermost first transmission line 130) can have than low impedance value, and helps to alleviate the load that drives wafer 150.
In comparison; If the design of contact panel 100 is as shown in Figure 2; In the contact panel 100 '; Wafer contact region Ac ' is not the corner corresponding to sensing area As ', then has at least the routing path of second transmission line 140 ' partly to need extended to by the first side S1 of sensing area As ' the second side S2 of sensing area As '.That is to say that the extension track of the first sensing bar 110 ' will intersect with second transmission line 140 '.Thus, the longest transmission line of routing path will be greater than the longest transmission line of routing path in the contact panel 100 in impedance than growing in the contact panel 100 '.
Particularly; Outermost second transmission line 140 in the contact panel 100 ' ' routing path significantly than the wiring topology path length of outermost second transmission line 140 in the contact panel 100, simultaneously also than the wiring topology path length of outermost first transmission line 130 in the contact panel 100.Therefore, under the design of same size, identical resolution, maximum impedance person can have relatively low resistance value in the transmission line of contact panel 100.Because the transfer impedance of transmission line is big more, the load that drives wafer 150 will be big more.So being designed with of present embodiment helps alleviate the load that drives wafer 150.Especially, panel size is big more, and resolution is when high more, and to drive using of wafer 150 loads more notable alleviating in the design of present embodiment.
Fig. 3 is the synoptic diagram of the touch control display apparatus of one embodiment of the invention.Please with reference to Fig. 3, touch control display apparatus 200 comprises a contact panel 100 and a display panel 210.Display panel 210 stands in for 100 groups with contact panel, and a driving wafer 212 of display panel 210 is arranged on outside the wafer contact region Ac.
Particularly, the design of contact panel 100 and element can be with reference to the foregoing descriptions, 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 with the driving wafer 150 of contact panel 100.Display panel 210 stands in a time-out for 100 groups with contact panel, drive wafer 212 with driving that wafer 150 can not stack together the integral thickness that helps reducing touch control display apparatus 200.In addition, driving wafer 212 is also comparatively desirable with the radiating effect that drives wafer 150.
Above embodiment all has a position with contact panel 100, and Ac is that example is explained in the wafer contact region in corner.But, in other embodiment, that contact panel can have is a plurality of (just two or more than) is arranged at the wafer contact region in corner.
For example, Fig. 4 looks synoptic diagram on the contact panel of another embodiment of the present invention.Please with reference 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 the 3rd transmission lines 350 and many articles the 4th transmission lines 360.The first sensing bar 310 and the second sensing bar 320 all are arranged in sensing area As.First transmission line 330, second transmission line 340, the 3rd transmission line 350 and the 4th transmission line 360 all are positioned at outside the sensing area Ac.First transmission line 330 and the 3rd transmission line 350 connect wherein one first sensing bar 310 respectively, and second transmission line 340 and the 4th transmission line 360 connect wherein one second sensing bar 320 respectively.
What deserves to be mentioned is that in the present embodiment, the part first sensing bar 310 is connected to first transmission line 330, other the first sensing bar 310 then is connected to the 3rd transmission line 350.Likewise, the part second sensing bar 320 is connected to second transmission line 340, and other the second sensing bar 320 then is connected to the 4th transmission line 360.Simultaneously, wafer contact region Ac1 and wafer contact region Ac2 all are positioned at the corner of sensing area As.
Can know that by the foregoing description such wire laying mode helps to reduce maximum impedance person's in these transmission lines resistance value and helps reducing the load that drives wafer.But, the present invention must not limit all sensing bars only has an end to be connected to transmission line.Fig. 5 looks synoptic diagram on the contact panel of another embodiment of the present invention.Please with reference 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 the 3rd transmission lines 450 and many articles the 4th transmission lines 460.The opposite end of each first sensing bar 410 is connected to first transmission line 430 and the 3rd transmission line 450 respectively, and the opposite end of each second sensing bar 420 is connected to second transmission line 440 and the 4th transmission line 460 respectively.
What deserves to be mentioned is that in the present embodiment, all transmission lines only distribute along the wherein side of sensing area As, and need not 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 first sensing bars 410 can not intersect with any one second transmission line 440, and the extension track of all second sensing bars 420 can not intersect with any one first transmission line 430.Likewise; Transmission line corresponding to same wafer contact region Ac2; The extension track of all first sensing bars 410 can not intersect with any one article of the 4th transmission line 460, and the extension track of all second sensing bars 420 can not intersect with any one article of the 3rd transmission line 450.
Thereby, present embodiment be designed with the resistance value that helps reduce maximum impedance person in the transmission line.Certainly, the contact panel of Fig. 4 and Fig. 5 and display panel group immediately, the driving wafer of contact panel can be arranged at different positions to help reducing the overall volume of touch control display apparatus with the driving wafer of display panel.
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 helps to reduce the routing path required length of arrangement wire of transmission line of length.Therefore, wire laying mode of the present invention helps to alleviate the load of the driving wafer of contact panel.In addition, contact panel of the present invention and display panel group immediately, the driving wafer of contact panel and the driving wafer of display panel can not stack together and help to reduce the thickness of touch control display apparatus.
Though the present invention discloses as above with embodiment; Right its is not in order to qualification the present invention, and any affiliated those skilled in the art is not breaking away from the spirit and scope of the present invention; When doing a little change and retouching, so protection scope of the present invention is as the criterion when looking appended the claim person of defining.
Claims (10)
1. a contact panel is characterized in that, has a wafer contact region in a corner of a sensing area and contiguous said sensing area, and said contact panel comprises:
Many first sensing bars are arranged in said sensing area, and each said first sensing bar extends along a first direction;
Many second sensing bars are arranged in said sensing area, and each said second sensing bar edge one second direction extension, and said first direction and said second direction intersect;
Many first transmission lines; Be positioned at outside the said sensing area; And each said first transmission line has one first link and one first connection pad end, and said first link is connected to wherein one first sensing bar, and the said first connection pad end is arranged in said wafer contact region; And
Many second transmission lines; Be positioned at outside the said sensing area; And each said second transmission line has one second link and one second connection pad end; Said second link is connected to wherein one second sensing bar; And the said second connection pad end is arranged in said wafer contact region, and wherein the extension track of all first sensing bars on said first direction can not intersect with any one second transmission line, and the extension track of all second sensing bars on said second direction can not intersect with any one first transmission line.
2. contact panel according to claim 1 is characterized in that, comprises that also one drives wafer, is arranged in said wafer contact region and electrically connects said a plurality of first connection pad end and said a plurality of second connection pad end.
3. contact panel according to claim 1 is characterized in that the spacing of said first link is greater than the spacing of the said first connection pad end.
4. contact panel according to claim 1 is characterized in that the spacing of said second link is greater than the spacing of the said second connection pad end.
5. contact panel according to claim 1; It is characterized in that; Said first link is positioned at one first side of said sensing area, and said second link is positioned at one second side of said sensing area, and said corner is sandwiched between said first side and said second side.
6. a touch control display apparatus is characterized in that, comprising:
Contact panel according to claim 1; And
One display panel stands in said contact panel group, and a driving wafer of said display panel is arranged on outside the said wafer contact region.
7. touch control display apparatus according to claim 6 is characterized in that, said contact panel comprises that also one drives wafer, is arranged in said wafer contact region and electrically connects the said first connection pad end and the said second connection pad end.
8. touch control display apparatus according to claim 6 is characterized in that the spacing of said first link is greater than the spacing of the said first connection pad end.
9. touch control display apparatus according to claim 6 is characterized in that the spacing of said second link is greater than the spacing of the said second connection pad end.
10. touch control display apparatus according to claim 6; It is characterized in that; Said first link is positioned at one first side of said sensing area, and said second link is positioned at one second side of said sensing area, and said corner is sandwiched between said first side and said 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 true CN102331870A (en) | 2012-01-25 |
| CN102331870B 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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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 |
|---|---|
| CN102331870B (en) | 2014-10-15 |
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