CN202362741U - Capacitive touch screen writing pen - Google Patents
Capacitive touch screen writing pen Download PDFInfo
- Publication number
- CN202362741U CN202362741U CN2011204441556U CN201120444155U CN202362741U CN 202362741 U CN202362741 U CN 202362741U CN 2011204441556 U CN2011204441556 U CN 2011204441556U CN 201120444155 U CN201120444155 U CN 201120444155U CN 202362741 U CN202362741 U CN 202362741U
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- China
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- penholder
- comparer
- phase inverter
- pen point
- nib
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Abstract
The utility model discloses a capacitive touch screen writing pen, relating to an accessory of an electronic input device. The writing pen is characterized in that a conductive layer is arranged at the periphery of a penholder; a pen point is made of a conductive material and electrically connected with the conductive layer of the penholder; the penholder is tubular and one end of the penholder is provided with a hollow pen point cover, and the other end of the penholder is provided with a removable tail cap; the tail end of the pen point is inserted in the penholder, and the front end of the pen point extends out of the pen point cover; the penholder is internally provided with a battery and a charge generator; the battery supplies power to the charge generator; and an output end of the charge generator is electrically connected with the pen point. The capacitive touch screen writing pen provided by the utility model supplies charges to the pen point by using the charge generator; the pen point is very thin and can satisfy the demand of generating enough writing information by the inside of the capacitive touch screen and an induction unit corresponding to the pen point, and the slender lines and fine points can be input.
Description
Technical field
The utility model relates to a kind of annex of electronic input apparatus.
Background technology
At present, the lettering pen of input information on capacitive touch screen, the periphery of penholder is surrounded by layer of conductive material, and nib is also processed with conductive material and is become to be electrically connected with the periphery of penholder.When the user holds penholder, when nib is touched capacitance touch screen, form electric capacity between the sensing unit under nib and this touch-screen, gather electric charge formation on this sensing unit and write signal.Write signal enough intensity is arranged for guaranteeing this, nib is all done thicklyer, and the electric capacity when writing with increase reaches the purpose that increases the quantity of electric charge.Therefore, existing this type lettering pen can not be imported very thin lines and meticulous point.
The utility model content
The utility model aims to provide a kind of capacitive touch screen lettering pen of importing very thin lines and meticulous point.
The technical scheme of the utility model is: the capacitive touch screen lettering pen, and the periphery of penholder is established conductive layer, and nib is processed with conductive material and is become to be electrically connected with the conductive layer of penholder; It is characterized in that: this penholder in a tubular form, an end of this penholder is established hollow pen point casing, the other end of this penholder is established the tail cap that can extract; This written tail end is inserted in this penholder, and this written front end is protruding from this pen point casing; Be provided with battery and charge generators in this penholder, this battery is to this charge generators power supply; The output terminal of this charge generators becomes to be electrically connected with this nib.Utilize charge generators to written delivered charge, can when nib contacts with capacitive touch screen, increase the quantity of electric charge of its induced inside unit, nib is done to such an extent that very carefully also can satisfy the needs that above-mentioned sensing unit produces enough written informations.So this capacitive touch screen lettering pen can be imported very thin lines and meticulous point.
Described charge generators comprises DC voltage booster circuit and electric charge generation circuit; This electric charge generation circuit comprises the LR series circuit, the electric capacity of releasing, comparer, phase inverter and Chang Kai microswitch; The low-voltage that this DC voltage booster circuit provides said battery is boosted to the supply voltage of this comparer and this phase inverter needs and is offered this comparer and this phase inverter; This LR series circuit is connected between two input ends of this comparer, and the positive input terminal of this comparer connects described nib and often opens an end of the contact of microswitch with this; This other end of often opening the contact of microswitch connects the conductive layer of said penholder and the output terminal of this phase inverter; The negative input end of this comparer connects the positive pole of said battery and an end of the electric capacity of releasing, the other end ground connection of this electric capacity of releasing and the earth terminal of this comparer; The supply voltage reference edge of this phase inverter of output termination of this comparer; The output terminal of this DC voltage booster circuit of input termination of this phase inverter; The tail end of said nib withstands on this and often opens pushing on the contact of microswitch; Be provided with spring between described nib and the said pen point casing, this spring is with described nib pushing tow outside described pen point casing.
During normality, nib is not pressed onto on the capacitive touch screen, and the contact of pushing of often driving microswitch is in release conditions, often opens the inner contact of microswitch and breaks off, and the current potential of two input ends of comparer is identical, is the anodal current potential of battery; The output of comparer remains unchanged.At this moment, if comparer is output as high level, then the supply voltage reference edge of phase inverter is a high level, and phase inverter can not be worked, and phase inverter is output as high-impedance state; If comparer is output as zero level, then the supply voltage reference edge of phase inverter is a zero level, and phase inverter gets into duty, and phase inverter is output as zero level.When phase inverter was output as high-impedance state, in case nib is pressed onto on the capacitive touch screen, the contact of pushing of often driving microswitch was in the state of being depressed, and often opened the inner contacting of microswitch.Be equivalent to provide external ground wire owing to hold the staff of penholder; There is electric current to flow through on the LR series circuit; Wherein the back electromotive force of inductor L generation makes the current potential of comparer positive input terminal be higher than negative input end, and comparer is output as high level, and the output of phase inverter remains high-impedance state; After the back electromotive force energy that inductor L produces was released the electric capacity absorption, the current potential of comparer positive input terminal was lower than negative input end, and comparer is output as zero level.Then the supply voltage reference edge of phase inverter is a zero level, and phase inverter gets into duty, and phase inverter is output as zero level.Be pressed onto on the capacitive touch screen in nib, often open the inner contacting of microswitch during; The output zero level of phase inverter; There is electric current to flow through on the LR series circuit; Wherein the back electromotive force of inductor L generation makes the current potential of comparer positive input terminal be higher than negative input end, and comparer is output as high level, and the output of phase inverter becomes high-impedance state.So; The output of phase inverter is alternate between zero level and high-impedance state; The charge and discharge process that the LR series circuit and the electric capacity of releasing replace; Change between the current potential that makes nib powers up the back electromotive force sum that sensor L produces at cell voltage stack current potential and the current potential of simple cell voltage, the potential difference (PD) of this alternation is equivalent to a collection ofly to written delivered charge the quantity of electric charge of inducting of inner with the written corresponding sensing unit of capacitive touch screen to be heightened; Nib is done to such an extent that very carefully also can satisfy the needs that above-mentioned sensing unit produces enough written informations, can import very thin lines and meticulous point.
In the described electric charge generation circuit; Between the power input of the output terminal of said DC voltage booster circuit and said phase inverter, forward be connected in series a speed-sensitive switch diode, and between the output terminal of the power input of said phase inverter and said comparer, be connected in series a speed-up capacitor.
In the output of comparer by zero level to the moment that high level changes, the potential change of speed-up capacitor other end induction is turn-offed speed-sensitive switch diode moment, cuts off the power supply of phase inverter and supplies with, and accelerates phase inverter and gets into high-impedance state.This and can accelerate the frequency of the output of phase inverter in zero level and high-impedance state alternate; Accelerate the LR series circuit and replace charge and discharge process with the electric capacity of releasing; The quantity of electric charge of inducting of inner with the written corresponding sensing unit of capacitive touch screen is increased, can import more very thin lines and meticulousr point
The utility model capacitive touch screen lettering pen; Utilize charge generators electric charge to be provided for nib; The quantity of electric charge of inducting of inner with the written corresponding sensing unit of capacitive touch screen is heightened; Nib is done to such an extent that very carefully also can satisfy the needs that above-mentioned sensing unit produces enough written informations, thereby has solved the problem of importing very thin lines and meticulous point.
Description of drawings
Fig. 1 is the contour structures synoptic diagram of an embodiment of the utility model capacitive touch screen lettering pen.
Fig. 2 is the inner structure synoptic diagram of Fig. 1 embodiment.
Fig. 3 is the electrical block diagram of the DC voltage booster circuit of charge generators among Fig. 1 embodiment.
Fig. 4 is the electrical block diagram of the electric charge generation circuit of charge generators among Fig. 1 embodiment.
Embodiment
The structure of an embodiment of the utility model capacitive touch screen lettering pen, as depicted in figs. 1 and 2, the penholder 1 of this lettering pen in a tubular form, the periphery of penholder 1 is established conductive layer 11.The front end of penholder 1 is established hollow conical pen point casing 2.Nib 3 usefulness conductive materials are processed.The front end of nib 3 is the nose cone 31 that has guide pillar, and the middle part is thinner connecting link 32, and the tail end of nib 3 makes thick cylinder 33.The cylinder 33 of nib 3 tail ends is inserted in the penholder 1, and the nose cone 31 of the front end of nib 3 is protruding from pen point casing 2, and the guide pillar at nose cone 31 rear portions becomes to be slidingly matched with the awl mouth of pen point casing 2.The connecting link 32 periphery pocketed springs 7 of nib 3.One end of spring 7 withstands on the front end face of cylinder 33, and the other end withstands on the awl mouth inwall of pen point casing 2.Spring 7 is with nib 3 pushing tow outside pen point casing 2.The tail cap 4 that can extract is established in the rear end of penholder 1.Be provided with battery 6 and charge generators 5 in the penholder 1, the positive pole of battery 6 directly withstands on the contact of charge generators 5 rear ends, and the negative pole of battery 6 is connected on the charge generators 5 through lead 51, and battery 6 is to these charge generators 5 power supplies; The front end of charge generators 5 is provided with one and often opens microswitch J1, and the rear end face of written 3 tail end cylinders withstands on and often opens the pushing on the contact of microswitch J1.The side of charge generators 5 front ends is provided with an electroconductive elastic sheet 52,11 one-tenth electrical connections of conductive layer of this electroconductive elastic sheet 52 and penholder 1.
DC voltage booster circuit is conventional design, and its core is the DC booster U1 of an integrated circuit.The input side of this DC booster U1 is furnished with input inductance L1, input resistance R1, input capacitance C1, and outgoing side is furnished with two feedback divider resistance R2, R3 and output filter capacitor C2.The negative pole of battery 6 meets earth terminal (GND) and the ground wire GND of DC booster U1, and positive pole meets power input (VIN) and the battery terminal B1+ of DC booster U1.The 1.5V low-voltage that DC voltage booster circuit provides battery 6 is boosted to the 5V supply voltage VCC of electric charge generation circuit needs and is offered electric charge generation circuit.
Electric charge generation circuit comprises LR series circuit, the electric capacity C3 that releases, comparer U2, phase inverter U3, speed-sensitive switch diode D1, speed-up capacitor C5 and the Chang Kai microswitch J1 that is made up of inductance L 2 and resistance R 4.5V supply voltage VCC is to power input (VCC) power supply of comparer U2.Be connected in series filter capacitor C4 between the power input of comparer U2 (VCC) and the ground wire GND.The LR series circuit is connected between two input ends (C+, C-) of comparer U2, and the positive input terminal of comparer U2 (C+) connects an end of the contact of nib 3 and Chang Kai microswitch J1; The other end of often opening the contact of microswitch J1 connects output terminal (VOUT) and the electroconductive elastic sheet 52 of phase inverter U3, and connects the conductive layer 11 of penholder 1 through electroconductive elastic sheet 52.The negative input end of comparer U2 (C-) connects the end of the battery terminal B1+ and the electric capacity C3 that releases, the earth terminal (GND) of the other end ground wire GND of the electric capacity C3 that releases and comparer U2; The output terminal of comparer U2 (OUT) connects the supply voltage reference edge (VSS) of phase inverter U3.Between the power input (VCC) of 5V supply voltage VCC and phase inverter U3, forward be connected in series speed-sensitive switch diode D1, and between the output terminal (OUT) of the power input (VCC) of phase inverter U3 and comparer U2, be connected in series speed-up capacitor C5.The input end of phase inverter U3 (A) meets 5V supply voltage VCC.
During normality; Nib 3 is not pressed onto on the capacitive touch screen, and the contact of pushing of often opening microswitch J1 is in release conditions, often opens the inner contact of microswitch J1 and breaks off; The current potential of two input ends (C+, C-) of comparer U2 is identical, is the anodal current potential 1.5V of battery 6; The output of comparer U2 (OUT) remains unchanged.At this moment, if the output (OUT) of comparer U2 is the 5V high level, then the supply voltage reference edge (VSS) of phase inverter U3 is the 5V high level, and phase inverter U3 can not work, and the output of phase inverter U3 (VOUT) is high-impedance state; If the output (OUT) of comparer U2 is zero level, then the supply voltage reference edge (VSS) of phase inverter U3 is a zero level, and phase inverter U3 gets into duty, and the output of phase inverter U3 (VOUT) is zero level.
When the output (VOUT) of phase inverter U3 was high-impedance state, in case nib 3 is pressed onto on the capacitive touch screen, the contact of pushing of often opening microswitch J1 was in the state of being depressed, and often opened the inner contacting of microswitch J1.Be equivalent to provide external ground wire owing to hold the staff of penholder 1; There is electric current to flow through on the LR series circuit of forming by inductance L 2 and resistance R 4; Wherein the back electromotive force of inductance L 2 generations makes the current potential of comparer U2 positive input terminal (C+) be higher than negative input end (C-); The output of comparer U2 (OUT) is the 5V high level, and the output of phase inverter U3 (VOUT) remains high-impedance state; After the back electromotive force energy that inductance L 2 produces was released electric capacity C3 absorption, the current potential of comparer U2 positive input terminal (C+) was lower than negative input end (C-), and the output of comparer U2 (OUT) is zero level.The supply voltage reference edge (VSS) of phase inverter U3 is a zero level, and phase inverter U3 gets into duty, and the output of phase inverter U3 (VOUT) is zero level.
3 be pressed onto on the capacitive touch screen in nib, often open the inner contacting of microswitch J1 during; If the output (VOUT) of phase inverter U3 is zero level; There is electric current to flow through on the LR series circuit of forming by inductance L 2 and resistance R 4; Wherein the back electromotive force of inductance L 2 generations makes the current potential of comparer U2 positive input terminal (C+) be higher than negative input end (C-), and comparer U2 is output as the 5V high level, and the output of phase inverter U3 (VOUT) becomes high-impedance state.In the output (OUT) of comparer U2 by zero level to moment that the 5V high level changes; The potential change of speed-up capacitor C5 other end induction; Speed-sensitive switch diode D1 moment is turn-offed, and the 5V supply voltage VCC that cuts off phase inverter U3 supplies with, and accelerates phase inverter U3 and gets into high-impedance state.After the back electromotive force energy that inductance L 2 produces is released electric capacity C3 absorption; The current potential of comparer U2 positive input terminal (C+) is lower than negative input end (C-); The output of comparer U2 (OUT) is zero level; The supply voltage reference edge (VSS) of phase inverter U3 is a zero level, and phase inverter U3 gets into duty, and the output of phase inverter U3 (VOUT) is zero level.
So; Be pressed onto on the capacitive touch screen in nib 3; The contact of pushing of often opening microswitch J1 is in the state of being depressed; The output of phase inverter U3 (VOUT) alternate between zero level and high-impedance state, by inductance L 2 and resistance R 4 LR series circuit of forming and the charge and discharge process that the electric capacity C3 that releases replaces, the current potential that makes nib 3 is at the stack current potential of the back electromotive force sum that cell voltage 1.5V coilloading L2 produces and change between the current potential of cell voltage 1.5V merely; The potential difference (PD) of this alternation is equivalent to a collection ofly to written 3 delivered charge; The quantity of electric charge of inducting of the capacitive touch screen inside sensing unit corresponding with written 3 is heightened, and nib 3 is done to such an extent that very carefully also can satisfy the needs that above-mentioned sensing unit produces enough written informations, can import very thin lines and meticulous point.
The above is merely the utility model preferred embodiment, does not limit the scope that the utility model is implemented with this, and the equivalence of doing according to the technical scheme and the description of the utility model changes and modification, all should belong to the scope that the utility model is contained.
Claims (3)
1. capacitive touch screen lettering pen, the periphery of penholder is established conductive layer, and nib is processed with conductive material and is become electrical connection with the conductive layer of penholder; It is characterized in that: this penholder in a tubular form, an end of this penholder is established hollow pen point casing, the other end of this penholder is established the tail cap that can extract; This written tail end is inserted in this penholder, and this written front end is protruding from this pen point casing; Be provided with battery and charge generators in this penholder, this battery is to this charge generators power supply; The output terminal of this charge generators becomes to be electrically connected with this nib.
2. capacitive touch screen lettering pen according to claim 1 is characterized in that: described charge generators comprises DC voltage booster circuit and electric charge generation circuit; This electric charge generation circuit comprises the LR series circuit, the electric capacity of releasing, comparer, phase inverter and Chang Kai microswitch; The low-voltage that this DC voltage booster circuit provides said battery is boosted to the supply voltage of this comparer and this phase inverter needs and is offered this comparer and this phase inverter; This LR series circuit is connected between two input ends of this comparer, and the positive input terminal of this comparer connects described nib and often opens an end of the contact of microswitch with this; This other end of often opening the contact of microswitch connects the conductive layer of said penholder and the output terminal of this phase inverter; The negative input end of this comparer connects the positive pole of said battery and an end of the electric capacity of releasing, the other end ground connection of this electric capacity of releasing and the earth terminal of this comparer; The supply voltage reference edge of this phase inverter of output termination of this comparer; The output terminal of this DC voltage booster circuit of input termination of this phase inverter; The tail end of said nib withstands on this and often opens pushing on the contact of microswitch; Be provided with spring between described nib and the said pen point casing, this spring is with described nib pushing tow outside described pen point casing.
3. capacitive touch screen lettering pen according to claim 2; It is characterized in that: in the described electric charge generation circuit; Between the power input of the output terminal of said DC voltage booster circuit and said phase inverter, forward be connected in series a speed-sensitive switch diode, and between the output terminal of the power input of said phase inverter and said comparer, be connected in series a speed-up capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204441556U CN202362741U (en) | 2011-11-10 | 2011-11-10 | Capacitive touch screen writing pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204441556U CN202362741U (en) | 2011-11-10 | 2011-11-10 | Capacitive touch screen writing pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202362741U true CN202362741U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204441556U Expired - Fee Related CN202362741U (en) | 2011-11-10 | 2011-11-10 | Capacitive touch screen writing pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202362741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176629A (en) * | 2013-04-03 | 2013-06-26 | 青岛歌尔声学科技有限公司 | Touch pen and touch control method thereof |
| CN103488316A (en) * | 2013-09-27 | 2014-01-01 | 汉王科技股份有限公司 | Capacitive stylus, capacitive touch panel and touch device |
| CN108052216A (en) * | 2018-01-02 | 2018-05-18 | 京东方科技集团股份有限公司 | A kind of active pen, actively touch-control system and actively touch control method |
-
2011
- 2011-11-10 CN CN2011204441556U patent/CN202362741U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176629A (en) * | 2013-04-03 | 2013-06-26 | 青岛歌尔声学科技有限公司 | Touch pen and touch control method thereof |
| CN103488316A (en) * | 2013-09-27 | 2014-01-01 | 汉王科技股份有限公司 | Capacitive stylus, capacitive touch panel and touch device |
| CN108052216A (en) * | 2018-01-02 | 2018-05-18 | 京东方科技集团股份有限公司 | A kind of active pen, actively touch-control system and actively touch control method |
| CN108052216B (en) * | 2018-01-02 | 2020-12-01 | 京东方科技集团股份有限公司 | Active pen, active pen touch system and active pen touch method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20181110 |