CN102571102A - Scanning configuration and scanning method for touch panel - Google Patents
Scanning configuration and scanning method for touch panel Download PDFInfo
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- CN102571102A CN102571102A CN2012100129085A CN201210012908A CN102571102A CN 102571102 A CN102571102 A CN 102571102A CN 2012100129085 A CN2012100129085 A CN 2012100129085A CN 201210012908 A CN201210012908 A CN 201210012908A CN 102571102 A CN102571102 A CN 102571102A
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Abstract
The invention discloses a scanning configuration for a touch panel. The touch panel comprises touch keys and a control chip which is connected with the touch keys, wherein each touch key comprises a main scanning area and an auxiliary scanning area which surrounds the main scanning area; a conducting wire is led out of the main scanning area and connected to the control chip; and two conducting wires which are led out of the auxiliary scanning area are positioned on two sides of the conducting wire of the main scanning area. By the scanning configuration for the touch panel, a capacitor which is connected with the main scanning area of each touch panel and a reference capacitor at a scanning end are eliminated, and cost is saved. By adoption of a scanning method based on the scanning configuration for the touch panel, two touch keys are scanned, addition of a reference end is not required, a scanning line is eliminated, the same control chip can be connected with more touch keys, and the size of the touch panel is increased.
Description
Technical field
The present invention relates to a kind of scanning configuration and scan method of touch panel, especially a kind of scanning configuration and scan method of capacitance touch panel.
Background technology
Initial key panel is installed the mechanical type button usually, the mechanical type button generally through push, mode such as rotation realizes feature operation, this mechanical type button easy abrasion, reduction of service life, the button that is touched gradually replaces.Touch key-press mainly comprises resistive touch button and capacitance type touch key, and the resistive touch button need use conductive film, and the durability of conductive film is low; Reduce light transmission; And capacitance type touch key leans on the staff induction, detecting capacitance variations, appearance looks elegant; And long service life, receiving people more must favor.
Existing touch key-press is typically provided with scanning end and reference edge; Said reference edge is external external capacitive; Said scanning end also is circumscribed with external capacitive, and the external capacitive of reference edge and scanning end is tunable capacitor, can to a certain degree prevent interference of noise like this.The scanning of this kind and touch key-press configuration not only need add external capacitive, has increased the production cost of touch key-press, and the reference edge external capacitor increased scan line, has taken pin of chip, has limited the quantity of touch key-press and the size of touch panel.
Summary of the invention
The present invention provides a kind of scanning configuration and scan method that reduces production costs and increase the touch panel size.
In order to realize above-mentioned purpose of the present invention; The present invention provides a kind of scanning configuration of touch panel; Said touch panel comprises touch key-press and connected control chip; Said touch key-press comprises main scanning district and the auxilliary scanning area that surrounds said main scanning district, and draw lead and is connected to said control chip in said main scanning district, and two leads that said auxilliary scanning area is drawn are positioned at the both sides that lead is drawn in said main scanning district.
A kind of scan method based on above-mentioned touch panel scanning configuration; Said touch panel comprises touch key-press and connected control chip; The scan method step of said touch panel is following: step a. sets a touch key-press and is the scanning end, and setting next adjacent touch key-press is reference edge; Step b. scans above-mentioned two touch key-presss simultaneously, obtains scan-data; Repeating step a and step b accomplish the scanning of touch panel.
Compared with prior art, the scanning of touch panel of the present invention configuration has reduced the electric capacity that is connected with touch key-press main scanning district, has also removed the reference capacitance of scanning end; Practiced thrift cost,, set adjacent touch key-press and be respectively scanning end and reference edge based on the scan method of above-mentioned scanning configuration; Simultaneously two touch key-presss are scanned, need not the reference edge of setting in addition, reduced scan line; Same control chip can connect more touch key-press, has increased the size of touch panel.
Description of drawings
Fig. 1 is the scanning configuration of touch panel of the present invention.
Fig. 2 is the flow chart of touch panel scan method of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
See also Fig. 1; The scanning configuration of touch panel of the present invention; Wherein touch panel comprises touch key-press 1 and the control chip that is connected said touch key-press 12, and the quantity of said touch key-press 1 is not less than two, comprises main scanning district 11 and auxilliary scanning area 12; Said auxilliary scanning area 12 surrounds said main scanning district 11; And be provided with breach 13 in the one of which side, and draw lead respectively with said auxilliary scanning area 12 and be connected to said control chip 2 in said main scanning district 11, and the lead that draw in said main scanning district 11 passes said breach 13.The number of conductors that said auxilliary scanning area 12 is drawn respectively is two; Lay respectively at the both sides of said breach 13; Be the both sides that lead is drawn in said main scanning district 11, the lead of being drawn by said auxilliary scanning area of two adjacent touch key-presss 1 links to each other, and the preferably adjacent lead of being drawn by said auxilliary scanning area 12 is connected; Make all leads of drawing link to each other by auxilliary scanning area 12; Only need arbitrary lead of being drawn by auxilliary scanning area 12 to be connected to control chip 2 and get final product, remaining lead of being drawn by said auxilliary scanning area 12 closes on said control chip 2, but does not connect.Distance between the lead that draw in lead that said auxilliary scanning area 12 is drawn and said main scanning district 11 can be a different numerical at diverse location; But par or vertical position place state the lead of drawing in main scanning district 11 respectively with lead that the said auxilliary scanning area 12 of both sides is drawn between distance equate, guarantee that the lead that draw in main scanning district 11 is in identical environment all the time.
As shown in Figure 2, following mask body is introduced the scan method of above-mentioned touch panel, at first sets a touch key-press 1 and is the scanning end; Setting next adjacent touch key-press 1 is reference edge, scans above-mentioned two touch key-presss 1 simultaneously, obtains scan-data; Carry out scanning next time then, the touch key-press 1 that is made as reference edge before setting in the single pass is the scanning end, and tactic next touch key-press 1 is a reference edge; Scan two touch key-presss 1 simultaneously; Obtain scan-data, repeat above-mentioned steps, accomplish scanning said touch panel.Wherein said scan-data is two differences between the touch key-press influence value, and the influence value of said touch key-press is the influence value in said main scanning district.Concrete, if said touch panel comprises N touch key-press, arrange with the form of row or row; When above-mentioned touch panel was scanned, the said touch key-press of sequential scanning was at first set first touch key-press and is the scanning end; Tactic second touch key-press is reference edge, simultaneously first touch key-press and second touch key-press scanned, and obtains first data; Then scan next time, set second touch key-press and be the scanning end, the 3rd touch key-press is reference edge; Simultaneously second touch key-press and the 3rd touch key-press are scanned, obtain two data, by that analogy; Set N-1 touch key-press and be the scanning end, N touch key-press is reference edge, simultaneously N-1 touch key-press and N touch key-press scanned; Obtain N-1 data, judge the touch information of said touch panel through N-1 scan-data.
The present invention is not limited to the foregoing description, and said touch panel touch key-press also can be arranged with the form of the some row of several rows, scans with the behavior order or to classify order as during scanning, and adjacent button can be neighbouring, also can be that the left and right sides is adjacent.
The scanning configuration of above-mentioned touch panel has reduced the electric capacity that is connected with touch key-press main scanning district, has also removed the reference capacitance of scanning end, has practiced thrift cost; Based on the scan method of above-mentioned scanning configuration, set adjacent touch key-press and be respectively scanning end and reference edge, simultaneously two touch key-presss are scanned; Need not the reference edge of setting in addition; Reduced scan line, same control chip can connect more touch key-press, has increased the size of touch panel.
Claims (10)
1. the scanning of touch panel configuration; Said touch panel comprises touch key-press and connected control chip; Said touch key-press comprises main scanning district and the auxilliary scanning area that surrounds said main scanning district; Draw lead and is connected to said control chip in said main scanning district, it is characterized in that: two leads that said auxilliary scanning area is drawn are positioned at the both sides that lead is drawn in said main scanning district.
2. the scanning of touch panel as claimed in claim 1 configuration is characterized in that: the lead that draw in said main scanning district respectively with lead that the said auxilliary scanning area of both sides is drawn between distance equate at par or vertical position place.
3. the scanning of touch panel as claimed in claim 1 configuration is characterized in that: the lead of being drawn by said auxilliary scanning area in the said adjacent touch key-press is connected.
4. the scanning of touch panel as claimed in claim 3 configuration is characterized in that: said arbitrary lead of being drawn by auxilliary scanning area is connected to control chip.
5. the scanning of touch panel as claimed in claim 4 configuration is characterized in that: remove the above-mentioned lead of being drawn by said auxilliary scanning area that is connected to said control chip, remaining lead of being drawn by said auxilliary scanning area closes on said control chip, does not connect.
6. the scanning of touch panel as claimed in claim 1 configuration, it is characterized in that: a side of said auxilliary scanning area is provided with breach, and the lead that draw in said main scanning district passes said breach.
7. the scan method of a touch panel, said touch panel comprises touch key-press and connected control chip, the scan method step of said touch panel is following:
Step a. sets a touch key-press and is the scanning end, and setting next adjacent touch key-press is reference edge;
Step b. scans above-mentioned two touch key-presss simultaneously, obtains scan-data;
Repeating step a and step b accomplish the scanning of touch panel.
8. the scan method of touch panel as claimed in claim 7, it is characterized in that: said scan-data is two differences between the touch key-press influence value.
9. the scan method of touch panel as claimed in claim 7 is characterized in that: during repeating step a, the touch key-press that is made as reference edge before setting in the single pass is the scanning end, and tactic next touch key-press is a reference edge.
10. the scan method of touch panel as claimed in claim 1, it is characterized in that: said scan-data is relevant with the influence value in said main scanning district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100129085A CN102571102A (en) | 2012-01-17 | 2012-01-17 | Scanning configuration and scanning method for touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100129085A CN102571102A (en) | 2012-01-17 | 2012-01-17 | Scanning configuration and scanning method for touch panel |
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| CN102571102A true CN102571102A (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100129085A Pending CN102571102A (en) | 2012-01-17 | 2012-01-17 | Scanning configuration and scanning method for touch panel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558025A (en) * | 2020-11-30 | 2021-03-26 | 四川九洲空管科技有限责任公司 | Secondary radar inquiry and response function detection equipment |
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| CN201467098U (en) * | 2009-05-08 | 2010-05-12 | 深圳市汇顶科技有限公司 | Touch-key sensing equipment, electronic device, rainfall amount sensor and vehicle |
| CN101783669A (en) * | 2010-01-28 | 2010-07-21 | 苏州瀚瑞微电子有限公司 | Capacitance type touch press key and judging method thereof |
| JP2010262340A (en) * | 2009-04-30 | 2010-11-18 | Panasonic Corp | Input display system |
| CN201797501U (en) * | 2010-07-06 | 2011-04-13 | 天马微电子股份有限公司 | Capacitive touch key and capacitive touch screen |
| CN102221921A (en) * | 2011-03-25 | 2011-10-19 | 苏州瀚瑞微电子有限公司 | Wiring method for touch screen key and structure of touch screen key |
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2012
- 2012-01-17 CN CN2012100129085A patent/CN102571102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010262340A (en) * | 2009-04-30 | 2010-11-18 | Panasonic Corp | Input display system |
| CN201467098U (en) * | 2009-05-08 | 2010-05-12 | 深圳市汇顶科技有限公司 | Touch-key sensing equipment, electronic device, rainfall amount sensor and vehicle |
| CN101783669A (en) * | 2010-01-28 | 2010-07-21 | 苏州瀚瑞微电子有限公司 | Capacitance type touch press key and judging method thereof |
| CN201797501U (en) * | 2010-07-06 | 2011-04-13 | 天马微电子股份有限公司 | Capacitive touch key and capacitive touch screen |
| CN102221921A (en) * | 2011-03-25 | 2011-10-19 | 苏州瀚瑞微电子有限公司 | Wiring method for touch screen key and structure of touch screen key |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558025A (en) * | 2020-11-30 | 2021-03-26 | 四川九洲空管科技有限责任公司 | Secondary radar inquiry and response function detection equipment |
| CN112558025B (en) * | 2020-11-30 | 2022-09-13 | 四川九洲空管科技有限责任公司 | Secondary radar inquiry and response function detection equipment |
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Application publication date: 20120711 |