CN209216073U - A kind of self-capacitance touch screen and electronic equipment - Google Patents
A kind of self-capacitance touch screen and electronic equipment Download PDFInfo
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- CN209216073U CN209216073U CN201822244203.1U CN201822244203U CN209216073U CN 209216073 U CN209216073 U CN 209216073U CN 201822244203 U CN201822244203 U CN 201822244203U CN 209216073 U CN209216073 U CN 209216073U
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- 239000000463 material Substances 0.000 claims abstract description 12
- 239000012528 membrane Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
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- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 101100321817 Human parvovirus B19 (strain HV) 7.5K gene Proteins 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
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Abstract
It includes viewing area and non-display area that the utility model, which provides a kind of self-capacitance touch screen and electronic equipment, touch screen, and multiple touch control electrodes are provided in the viewing area, touch-control IC is provided in the non-display area；The multiple touch control electrode is laterally arranged, and the both ends of the touch control electrode pass through signal wire respectively and connect with the touch-control IC, and the touch-control IC sends signal from one end of the touch control electrode, and receives feedback signal in the corresponding other end；A plurality of channel is etched in the touch control electrode, a plurality of channel propagates the signal in the touch control electrode in uniform S-shaped trend；In the case where having no need to change membrane material, changing the width of touch control electrode, ideal distribution of impedance can be obtained, and distribution of impedance is uniform by the length and spacing of design channel, improve the precision of coordinate identification.
Description
Technical field
The utility model relates to technical field of touch control more particularly to a kind of self-capacitance touch screens and electronic equipment.
Background technique
With reference to Fig. 1, the principle of self-capacitance touch screen is: the both ends of touch control electrode 1 being connect with touch-control IC2, it is assumed that from the end A
Square-wave signal is inputted, is charged to touch control electrode 1, the charging time has a fiducial time when not touching normally, when being touched
When, it is equally distributed impedance from the end A to the end B that the change of resistance and capacitor, which can cause the variation in charging time,.
When there is no touching and occur to touch, touch different location, the triangular waveform that the end B receives is different, institute
Time difference when each position is touched can be positioned according to distribution of impedance, so that these time differences are converted to number
Signal, i.e. sensitivity.
Based on principles above, the parsing of coordinate is generated according to the resistance difference of the location of finger left and right when being touched
Induction is measured different come what is identified, and resistance is the parameter for needing accurately to adjust, if to mention in the lesser situation of screen
The precision of high coordinate can be realized by increasing the distribution of impedance, but how guarantee that touch control electrode width is constant, membrane material face
Distribution of impedance in the case that impedance is constant in flexible setting touch control electrode is a problem.
Utility model content
The purpose of this utility model is that can not be in touch-control electricity for above-mentioned self-capacitance touch screen impedance in the prior art
The problem of distribution of impedance is arranged in the case that pole width is constant, the impedance of membrane material face is constant, proposes a kind of self-capacitance touch screen and electricity
Sub- equipment, can distribution of impedance in flexible setting touch control electrode, improve coordinate accuracy of identification.
A kind of self-capacitance touch screen, including viewing area and non-display area are provided with multiple touch control electrodes in the viewing area,
Touch-control IC is provided in the non-display area；
The multiple touch control electrode is laterally arranged, and the both ends of the touch control electrode pass through signal wire and the touch-control IC respectively
Connection, the touch-control IC sends signal from one end of the touch control electrode, and receives feedback signal in the corresponding other end；
A plurality of channel is etched in the touch control electrode, a plurality of channel makes the signal in the touch control electrode
It propagates and is moved towards in uniform S-shaped.
Further, the multiple channel is in longitudinally staggered distribution, and the length of the channel is less than the touch control electrode
Width；
First distance between adjacent channel is equal with the second distance on channel top to opposite side.
Further, the total impedance of the first distance and second distance and the touch control electrode is in inverse ratio.
Further, the length of the viewing area is 584.02mm, width 245.69mm；
The width of the touch control electrode is 13.5mm, and the quantity of touch control electrode is 18.
Further, the first distance and the range of second distance are 4.6mm to 5.6mm.
Further, the touch control electrode etches to be formed by conventional ito film material.
A kind of electronic equipment, including above-mentioned self-capacitance touch screen.
Self-capacitance touch screen and electronic equipment provided by the utility model, include at least it is following the utility model has the advantages that
(1) have no need to change membrane material, change touch control electrode width under, can by design channel length and
Away from, obtain ideal distribution of impedance, and distribution of impedance is uniform, improve coordinate identification precision；
(2) structure is simple, can be obtained preferable touch-control effect using the membrane material of single layer, production cost is effectively reduced.
Detailed description of the invention
Fig. 1 is the schematic illustration of the self-capacitance touch screen of the prior art.
Fig. 2 is a kind of structural schematic diagram of embodiment of self-capacitance touch screen provided by the utility model.
Fig. 3 is a kind of structural schematic diagram of embodiment of touch control electrode in self-capacitance touch screen provided by the utility model.
Fig. 4 is that the signal in the touch control electrode of self-capacitance touch screen provided by the utility model moves towards schematic diagram.
Specific embodiment
To keep the purpose of this utility model, technical solution and effect clearer, clear, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only practical to explain
It is novel, it is not used to limit the utility model.
Embodiment one
With reference to Fig. 2, the present embodiment provides in a kind of self-capacitance touch screen, including viewing area A and non-display area B, viewing area A
Multiple touch control electrodes 101 are provided with, are provided with touch-control IC102 in non-display area；
Multiple laterally settings of touch control electrode 101, the both ends of touch control electrode 101 pass through signal wire 103 and touch-control IC102 respectively
Connection, touch-control IC102 sends signal from one end of touch control electrode 101, and receives feedback signal in the corresponding other end；
A plurality of channel 104 is etched in touch control electrode 101, a plurality of channel 104 makes the signal in touch control electrode 101
It propagates and is moved towards in uniform S-shaped.
Specifically, with reference to Fig. 3, multiple channels 104 are in longitudinally staggered distribution, and the length of channel 104 is less than touch control electrode
101 width；
First distance W1 between adjacent channel is equal with the second distance W2 on 104 top of channel to opposite side.
As shown in figure 4, trend of the signal in touch control electrode 101 is as shown by arrows, it is in uniform S-shaped, is not changing in this way
In the case where becoming membrane material, distribution of impedance can be increased substantially.
Further, the total impedance of first distance W1 and second distance W2 and the touch control electrode is in inverse ratio, first distance
W1 and second distance W2 are smaller, then impedance is bigger.
Self-capacitance touch screen provided in this embodiment, include at least it is following the utility model has the advantages that
(1) have no need to change membrane material, change touch control electrode width under, can by design channel length and
Away from, obtain ideal distribution of impedance, and distribution of impedance is uniform, improve coordinate identification precision；
(2) structure is simple, can be obtained preferable touch-control effect using the membrane material of single layer, production cost is effectively reduced.
Embodiment two
The present embodiment is further described with specific application scenarios.
By taking 25 cun of product designs as an example, the length of viewing area is 584.02mm, width 245.69mm.
The width of touch control electrode is 13.5mm, and the quantity of touch control electrode is 18.
Touch control electrode etches to be formed by conventional ito film material, and face resistance is 150 ohm.
If in the case where not etching channel, the impedance of acquisition is 5 ohm using conventional design.
Using the scheme as described in embodiment one, multiple channels are etched in touch control electrode, first between adjacent channel
Distance W1 is 5.6mm, and the second distance W2 on channel top to opposite side is 5.6mm, and the total impedance of acquisition is 7.5K ohm.
If first distance W1 is 4.6mm, second distance W2 is 5.6mm, then the total impedance obtained is 10K ohm.
It follows that by design first distance and second distance impedance can be increased substantially, and have no need to change film
Material, the width for having no need to change touch control electrode.
Embodiment three
The present embodiment provides a kind of electronic equipment, including the self-capacitance touch screen as described in embodiment one.
Electronic equipment provided in this embodiment can be with are as follows: any tool such as mobile phone, tablet computer, display, laptop
There are the products or components of display function.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (7)
1. a kind of self-capacitance touch screen, which is characterized in that including viewing area and non-display area, be provided in the viewing area multiple
Touch control electrode is provided with touch-control IC in the non-display area；
The multiple touch control electrode is laterally arranged, and the both ends of the touch control electrode pass through signal wire respectively and the touch-control IC connects
It connects, the touch-control IC sends signal from one end of the touch control electrode, and receives feedback signal in the corresponding other end；
A plurality of channel is etched in the touch control electrode, a plurality of channel propagates the signal in the touch control electrode
It is moved towards in uniform S-shaped.
2. self-capacitance touch screen according to claim 1, which is characterized in that the multiple channel is in longitudinally staggered distribution,
And the length of the channel is less than the width of the touch control electrode；
First distance between adjacent channel is equal with the second distance on channel top to opposite side.
3. self-capacitance touch screen according to claim 2, which is characterized in that the first distance and second distance with it is described
The total impedance of touch control electrode is in inverse ratio.
4. self-capacitance touch screen according to claim 2, which is characterized in that the length of the viewing area is 584.02mm,
Width is 245.69mm；
The width of the touch control electrode is 13.5mm, and the quantity of touch control electrode is 18.
5. self-capacitance touch screen according to claim 4, which is characterized in that the range of the first distance and second distance
For 4.6mm to 5.6mm.
6. self-capacitance touch screen according to claim 1, which is characterized in that the touch control electrode is etched by ito film material
It is formed.
7. a kind of electronic equipment, which is characterized in that including the self-capacitance touch screen as described in claim 1-6 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244203.1U CN209216073U (en) | 2018-12-28 | 2018-12-28 | A kind of self-capacitance touch screen and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244203.1U CN209216073U (en) | 2018-12-28 | 2018-12-28 | A kind of self-capacitance touch screen and electronic equipment |
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| CN209216073U true CN209216073U (en) | 2019-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558040A (en) * | 2018-12-28 | 2019-04-02 | 深圳市德名利电子有限公司 | A kind of self-capacitance touch screen and electronic equipment |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109558040A (en) * | 2018-12-28 | 2019-04-02 | 深圳市德名利电子有限公司 | A kind of self-capacitance touch screen and electronic equipment |
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Address after: Room 701, 7th floor, Smart Valley Innovation Park, 1010 Bulong Road, Minzhi Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen deminli Technology Co.,Ltd. Address before: 518000, 701, building 7, wisdom Valley Innovation Park, people's street, Longhua District, Shenzhen, Guangdong Patentee before: SHENZHEN DEMINGLI ELECTRONICS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 2501, 2401, block a, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen deminli Technology Co.,Ltd. Address before: 518000 room 701, 7 / F, wisdom Valley Innovation Park, 1010 Bulong Road, Minzhi street, Longhua District, Shenzhen City, Guangdong Province Patentee before: Shenzhen deminli Technology Co.,Ltd. |
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Effective date of registration: 20240124 Address after: Room 409, 4th Floor, Building 1, No. 199 Weikang Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 Patentee after: Zhuhai Hongpeihan Electronic Technology Co.,Ltd. Country or region after: China Address before: 2501, 2401, block a, building 1, Shenzhen new generation industrial park, 136 Zhongkang Road, Meidu community, Meilin street, Futian District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen deminli Technology Co.,Ltd. Country or region before: China |