CN103019487A - Pressing type capacitive screen - Google Patents
Pressing type capacitive screen Download PDFInfo
- Publication number
- CN103019487A CN103019487A CN2012105050830A CN201210505083A CN103019487A CN 103019487 A CN103019487 A CN 103019487A CN 2012105050830 A CN2012105050830 A CN 2012105050830A CN 201210505083 A CN201210505083 A CN 201210505083A CN 103019487 A CN103019487 A CN 103019487A
- Authority
- CN
- China
- Prior art keywords
- capacitance plate
- ito conductive
- plate body
- capacitive screen
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Position Input By Displaying (AREA)
Abstract
The invention discloses a pressing type capacitive screen which comprises a capacitive screen main body, wherein the front surface and the back surface of the capacitive screen main body are correspondingly a touch side and a non-touch side respectively; the touch side of the capacitive screen main body is provided with a flexible ITO (Indium Tin Oxide) conducting film; flexible supports are evenly arranged between the flexible ITO conducting film and the capacitive screen main body; an ITO conducting layer is arranged on the non-touch side; an electrode is guided out from the flexible ITO conducting film to be connected with the positive pole of a power supply; and an electrode is guided out from the ITO conducting layer to be connected with the negative pole of the power supply. The pressing type capacitive screen, disclosed by the invention, is provided and matched with the flexible ITO conducting film, the ITO conducting layer and the flexible supports on the capacitive screen main body, so that touch of insulators, such as similar plastics and the like, can be detected, and use requirements of users can be satisfied.
Description
Technical field
The present invention relates to the touch screen technology field, relate in particular to a kind of push type capacitance plate that detects any touch objects touch function that has.
Background technology
It (is Surface Capacitive Touch that capacitive touch screen is divided into based on the surface capacitance type touching technique, be called for short SCT) the surface capacitance touch screen and based on the projecting type capacitor touch screen of projected capacitive touching technique (be Projected Capacitive Touch, be called for short PCT).Because projecting type capacitor touch screen specific surface capacitive touch screen has more superior performance and longer serviceable life, therefore, projecting type capacitor touch screen is widely used in the life, wherein the principle of work of projecting type capacitor touch screen is specially: at first, be divided into a plurality of capacitive touch screen and the sizable sensing unit of Pixel Dimensions by effective Electronic Control, then, adopt superfine single track tinsel to carry out permutation. last, these single track tinsels are connected to control panel.Because every one metal wire has oneself fixing electromagnetic oscillation frequency, the glass surface that touches capacitive touch screen can cause the change of tinsel oscillation frequency, the situation of change of tinsel oscillation frequency is detected by control panel simultaneously, determines the touch point by control panel and kernel program at last.Compare with the surface capacitance touch screen, owing to be Embedded based on the sensing unit of the projecting type capacitor touch screen of PCT technology, therefore have good stability, be not easy to be disturbed, and be not easy the advantage such as damage.
But, even projecting type capacitor touch screen, can not be for detection of the touch of the insulators such as similar plastics, this is the shortcoming of capacitive touch screen maximum.
Summary of the invention
Technical matters to be solved by this invention provides a kind of push type capacitance plate, and it can detect the touch of the insulators such as similar plastics.
In order to solve the problems of the technologies described above, the technical solution used in the present invention content is specific as follows:
A kind of push type capacitance plate, it comprises the capacitance plate body, the front and back of described capacitance plate body corresponds to respectively touch side and the non-touch side of capacitance plate body; The touch side of described capacitance plate body is provided with flexible ITO conductive film, is evenly equipped with sinking support between described flexible ITO conductive film and the capacitance plate body, and described non-touch side is provided with the ITO conductive layer; Described flexible ITO conductive film is drawn the positive pole that an electrode removes to connect a power supply; Described ITO conductive layer is drawn the negative pole that an electrode removes to connect described power supply.
Preferably, described sinking support is rubber bearing.
In order to improve the detection sensitivity of push type capacitance plate, preferably, the air line distance between described flexible ITO conductive film and the described ITO conductive layer is no more than the twice of described capacitance plate body thickness.
Compared with prior art, the present invention has produced following beneficial effect:
Push type capacitance plate of the present invention is equipped with flexible ITO conductive film, ITO conductive layer and sinking support at the capacitance plate body, can for detection of the touch of the insulators such as similar plastics, satisfy user's user demand.
The invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the more preferably structural representation of embodiment of push type capacitance plate of the present invention;
Fig. 2 is push type capacitance plate shown in Figure 1 structural representation when being pressed.
Embodiment
As shown in Figure 1, be push type capacitance plate of the present invention, it comprises capacitance plate body 100, the front and back of described capacitance plate body 100 corresponds to respectively touch side and the non-touch side of capacitance plate body 100; The touch side of described capacitance plate body 100 is provided with flexible ITO conductive film 200, is evenly equipped with sinking support 400 between described flexible ITO conductive film 200 and the capacitance plate body 100, and described non-touch side is provided with ITO conductive layer 300; Described flexible ITO conductive film 200 is drawn the positive pole that an electrode goes to connect a power supply (not shown); Described ITO conductive layer 300 is drawn the negative pole that an electrode removes to connect described power supply.
Particularly, described sinking support 400 is rubber bearing.
In order to improve the detection sensitivity of push type capacitance plate, particularly, the air line distance between described flexible ITO conductive film 200 and the described ITO conductive layer 300 is no more than the twice of described capacitance plate body 100 thickness.
Below in conjunction with Fig. 2 the principle of work of push type capacitance plate of the present invention is explained in detail:
As shown in Figure 2, being numbered 110 point shown in the arrow on the capacitance plate body 100 is positioned under the touch point A on the flexible ITO conductive film 200, being numbered 120 point shown in the arrow on the capacitance plate body 100 is positioned under the non-touch point B on the flexible ITO conductive film 200, if being numbered the electric field intensity of 110 point is E1, being numbered 120 some electric field intensity is E2.And, be numbered 110 point shown in the arrow and equal to be numbered shown in the arrow 120 point to the air line distance of ITO conductive layer 300 to the air line distance of ITO conductive layer 300.
According to formula E=U/d, U is 2 electric potential difference, and d is that 2 distance can get:
Be numbered the electric field strength E 1=U ˊ/d1 of 120 point; And be numbered the electric field strength E 2=U ˊ/d2 of 110 point, U ˊ is the electric potential difference between flexible ITO conductive film 200 and the ITO conductive layer 300, d1 be non-touch point B to the air line distance of ITO conductive layer 300, and d2 is that touch point A is to the air line distance of ITO conductive layer 300.
In the constant situation that equals U ˊ of U, because being pressed, touch point A toward lower recess, cause d2 inevitable less than d1, according to formula E=U/d, the electric field strength E 2 that is numbered 110 point must be greater than the electric field strength E 1 that is numbered 120 point.When power cathode was 0 current potential, the electromotive force that is numbered 110 point on the capacitance plate body 100 must be higher than the electromotive force that is numbered 120 point.Therefore, with flexible ITO conductive film 200 as touching the plane, when touching that the plane is pointed or during the contact of the insulator such as similar plastics, must cause the potential change (being that current potential uprises) in the electric capacity body 100 interior respective regions, this variation makes capacitance plate body 100 also produce respective change, make capacitance plate body 100 be equivalent to have original touch ability, thereby realize the location of 100 pairs of touch points of capacitance plate body.
Simultaneously, above-mentioned push type capacitance plate, when the air line distance between described flexible ITO conductive film 200 and the described ITO conductive layer 300 is set to be no more than twice big or small of described capacitance plate 100 thickness, can make, make d2 more obvious with respect to the variation of d1, be more conducive to improve the detection sensitivity of capacitance plate body 100.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection domain of claim of the present invention all.
Claims (3)
1. push type capacitance plate, it comprises the capacitance plate body, it is characterized in that: the front and back of described capacitance plate body corresponds to respectively touch side and the non-touch side of capacitance plate body; The touch side of described capacitance plate body is provided with flexible ITO conductive film, is evenly equipped with sinking support between described flexible ITO conductive film and the capacitance plate body, and described non-touch side is provided with the ITO conductive layer; Described flexible ITO conductive film is drawn the positive pole that an electrode removes to connect a power supply; Described ITO conductive layer is drawn the negative pole that an electrode removes to connect described power supply.
2. push type capacitance plate as claimed in claim 1, it is characterized in that: described sinking support is rubber bearing.
3. push type capacitance plate as claimed in claim 1 or 2, it is characterized in that: the air line distance between described flexible ITO conductive film and the described ITO conductive layer is no more than the twice of described capacitance plate body thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505083.0A CN103019487B (en) | 2012-11-30 | 2012-11-30 | Push type capacitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505083.0A CN103019487B (en) | 2012-11-30 | 2012-11-30 | Push type capacitive screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103019487A true CN103019487A (en) | 2013-04-03 |
| CN103019487B CN103019487B (en) | 2016-01-20 |
Family
ID=47968150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210505083.0A Active CN103019487B (en) | 2012-11-30 | 2012-11-30 | Push type capacitive screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103019487B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104423739A (en) * | 2013-08-30 | 2015-03-18 | 天津富纳源创科技有限公司 | Touch device |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN104679359A (en) * | 2013-11-29 | 2015-06-03 | 天津富纳源创科技有限公司 | Touch device |
| CN108200249A (en) * | 2018-01-29 | 2018-06-22 | 东莞颠覆产品设计有限公司 | A kind of Curved screen mobile communication equipment |
| CN108334473A (en) * | 2018-01-26 | 2018-07-27 | 广州师道科技有限公司 | Intelligent and interesting electronic book system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261552A (en) * | 2007-03-09 | 2008-09-10 | 洋华光电股份有限公司 | Combined touch control induction device |
| US20090315853A1 (en) * | 2008-06-20 | 2009-12-24 | Sentrend Corporation | Multi-induced touchpad |
| CN101739187A (en) * | 2008-11-06 | 2010-06-16 | 株式会社日立显示器 | Electrostatic capacitance coupling type touch panel |
| CN101872273A (en) * | 2009-04-22 | 2010-10-27 | 株式会社日立显示器 | Input media and the display device that possesses this input media |
| CN102455835A (en) * | 2010-10-22 | 2012-05-16 | 株式会社日立显示器 | Touch panel |
| CN102681719A (en) * | 2011-01-19 | 2012-09-19 | 胜华科技股份有限公司 | Touch device and touch display device |
| CN202495007U (en) * | 2011-11-08 | 2012-10-17 | 洋华光电股份有限公司 | Touch tablet |
| CN202995693U (en) * | 2012-11-30 | 2013-06-12 | 深圳市深越光电技术有限公司 | Push type capacitance screen |
-
2012
- 2012-11-30 CN CN201210505083.0A patent/CN103019487B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261552A (en) * | 2007-03-09 | 2008-09-10 | 洋华光电股份有限公司 | Combined touch control induction device |
| US20090315853A1 (en) * | 2008-06-20 | 2009-12-24 | Sentrend Corporation | Multi-induced touchpad |
| CN101739187A (en) * | 2008-11-06 | 2010-06-16 | 株式会社日立显示器 | Electrostatic capacitance coupling type touch panel |
| CN101872273A (en) * | 2009-04-22 | 2010-10-27 | 株式会社日立显示器 | Input media and the display device that possesses this input media |
| CN102455835A (en) * | 2010-10-22 | 2012-05-16 | 株式会社日立显示器 | Touch panel |
| CN102681719A (en) * | 2011-01-19 | 2012-09-19 | 胜华科技股份有限公司 | Touch device and touch display device |
| CN202495007U (en) * | 2011-11-08 | 2012-10-17 | 洋华光电股份有限公司 | Touch tablet |
| CN202995693U (en) * | 2012-11-30 | 2013-06-12 | 深圳市深越光电技术有限公司 | Push type capacitance screen |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104423739A (en) * | 2013-08-30 | 2015-03-18 | 天津富纳源创科技有限公司 | Touch device |
| CN104516595A (en) * | 2013-09-27 | 2015-04-15 | 天津富纳源创科技有限公司 | Touch device |
| CN104679359A (en) * | 2013-11-29 | 2015-06-03 | 天津富纳源创科技有限公司 | Touch device |
| CN108334473A (en) * | 2018-01-26 | 2018-07-27 | 广州师道科技有限公司 | Intelligent and interesting electronic book system |
| CN108200249A (en) * | 2018-01-29 | 2018-06-22 | 东莞颠覆产品设计有限公司 | A kind of Curved screen mobile communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103019487B (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103019487B (en) | Push type capacitive screen | |
| JP2011516985A (en) | Pointer device for capacitive sensing touchscreen | |
| CN105430123B (en) | Display module and the mobile terminal with the display module | |
| CN103186266A (en) | Method for adjusting sensitivity of touch panel | |
| CN202995693U (en) | Push type capacitance screen | |
| CN204463063U (en) | Touch screen and adopt the electronic installation of this touch screen | |
| CN202904536U (en) | Laser touch screen | |
| CN203691478U (en) | Capacitive touch control screen mobile phone | |
| CN203254741U (en) | Protection film for capacitive touch screen | |
| TWI448940B (en) | Method for adjusting the sensitivity of the touch panel | |
| CN213715903U (en) | Sensing input device based on capacitive touch input equipment | |
| CN103685656A (en) | Capacitive touch control screen mobile phone | |
| CN209168077U (en) | A kind of touch screen electrostatic surge absorbing circuit, touch screen and electronic equipment | |
| CN206788840U (en) | A kind of Multifunctional capacitor screen | |
| CN202632249U (en) | Touch-sense touch screen | |
| CN202889318U (en) | Touch press-key device and smoke exhauster | |
| CN205139880U (en) | Anti -static touch screen | |
| CN202306518U (en) | Capacitive touch screen | |
| CN102375630B (en) | Surface capacitance type touch control device and control method thereof | |
| CN112256160A (en) | Sensing input device and method based on capacitive touch input equipment | |
| CN103218098A (en) | Hybrid touch input device and hybrid touch input panel | |
| CN103809833A (en) | Surface-capacitive mobile phone touch screen | |
| CN205302217U (en) | Touch mouse | |
| CN205005096U (en) | Handset | |
| US9886146B2 (en) | Active graphene touch switch for electronic devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171220 Address after: 523718 Guangdong city in Dongguan Province town of Tangxia City Industrial Park Keyuan information industry A10 No. C15 Lu Yi Lu Patentee after: Guangdong Yuezhong Photoelectric Technology Co. Ltd. Address before: Baoan District Shenzhen City, Guangdong province 518110 streets Guanlan Liguang community Li New Light Industrial Zone No. 118 Building 1, building 2 Patentee before: Shenzhen Top-Touch Electronics Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: Room 301, Building 7, Luyi South Road, Tangxia Town, Dongguan City, Guangdong Province Patentee after: Guangdong Xingxing Electronic Technology Co., Ltd. Address before: 523718 C15, No. A10 Industrial Luyi Road, Keyuan City, Tangxia Town, Dongguan City, Guangdong Province Patentee before: Guangdong Yuezhong Photoelectric Technology Co. Ltd. |
|
| CP03 | Change of name, title or address |