CN117130498A - Capacitive pen, touch screen and intelligent equipment assembly - Google Patents
Capacitive pen, touch screen and intelligent equipment assembly Download PDFInfo
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- CN117130498A CN117130498A CN202311288826.8A CN202311288826A CN117130498A CN 117130498 A CN117130498 A CN 117130498A CN 202311288826 A CN202311288826 A CN 202311288826A CN 117130498 A CN117130498 A CN 117130498A
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- pen
- touch screen
- false touch
- touch signal
- capacitive
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- 238000001514 detection method Methods 0.000 claims description 23
- 239000010409 thin film Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 241001422033 Thestylus Species 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 10
- 238000004891 communication Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03545—Pens or stylus
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0441—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
- G06F3/0442—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
Abstract
The invention discloses a capacitance pen, a touch screen and an intelligent device assembly, wherein the capacitance pen comprises: the pen comprises a pen holder, wherein a conductive piece is arranged on the pen holder and is used for being attached to the skin of a user when the user uses the pen holder; the false touch signal output circuit is electrically connected with the conductive piece and is used for outputting a false touch signal through the conductive piece; when the user uses the pen holder and the distance between the pen holder and the touch screen is smaller than the preset distance, the false touch signal output circuit couples and outputs the false touch signal to the touch screen through the conductive piece and the skin of the user. When the distance between a user and the touch screen is smaller than a preset distance, the false touch signal output circuit outputs a false touch signal to the touch screen through the conductive piece and the skin of the user; so that the touch screen determines a human body false touch area and does not process touch signals in the human body false touch area; therefore, the problem that the writing experience of the capacitive pen is affected due to the fact that a human body touches the screen by mistake during writing of the capacitive pen is solved.
Description
Technical Field
The invention relates to the technical field of capacitance pens, in particular to a capacitance pen, a touch screen and an intelligent device assembly.
Background
The capacitive pen is matched with the capacitive touch screen to be used in a wider and wider range, the active capacitive pen usually transmits a specific downlink high-voltage coding signal through a pen point, the capacitive touch screen receives the downlink signal of the active pen, analyzes information such as the position, the angle and the like of the active pen, and generates a report point on the screen
When a user writes on the electronic screen by using the capacitance pen, other parts of the body of the user such as the palm and the arm are easy to touch the screen, and as the capacitance touch screen simultaneously has two modes of detecting the fingers of the human body and detecting the descending code-printing signals of the capacitance pen, when the user holds the handwriting pen to write, the handwriting pen is lifted and other parts of the human body mistakenly touch the screen, the capacitance touch screen senses the signals of the human body to generate mistaken report points, so that the writing experience of the capacitance pen is affected.
Disclosure of Invention
The invention mainly aims to provide a capacitive pen, a touch screen and an intelligent device assembly, and aims to solve the problem that when the capacitive pen writes, a human body touches the screen by mistake, and the writing experience of the capacitive pen is affected by the fact that a false alarm point is generated on the screen.
In order to achieve the above object, the present invention provides a capacitive pen, including:
the pen comprises a pen holder, wherein a conductive piece is arranged on the pen holder and is used for being attached to the skin of a user when the user uses the pen holder;
the false touch signal output circuit is electrically connected with the conductive piece and is used for outputting a false touch signal through the conductive piece;
when the user uses the pen holder and the distance between the pen holder and the touch screen is smaller than the preset distance, the false touch signal output circuit couples the false touch signal to the touch screen through the conductive piece and the skin of the user.
Optionally, the conductive member comprises a metal electrode or a conductive ceramic electrode
Optionally, the number of the conductive elements is a plurality.
Optionally, the capacitive pen further includes:
the main control circuit is connected with the false touch signal output circuit and used for outputting a control signal to the false touch signal output circuit and controlling the false touch signal output circuit to work.
Optionally, the capacitance pen further comprises
The contact detection module is used for detecting the contact state of the pen body and the human body and outputting a contact detection signal according to the contact state of the pen body and the human body;
the main control circuit is connected with the contact detection module and used for outputting a control signal according to the contact detection signal so as to control the false touch signal output circuit to work.
Optionally, the contact detection module comprises a capacitive sensor.
Optionally, the contact detection module comprises a piezoelectric thin film sensor.
The invention also provides a touch screen which is used for being matched with the capacitance pen, and the touch screen comprises:
and the processing circuit is used for determining the human body false touch range when receiving the false touch signal and not processing the touch signal when receiving the touch signal in the false touch range.
The invention further provides an intelligent device assembly, which comprises the capacitance pen and the touch screen.
The invention provides a capacitance pen, a touch screen and an intelligent device assembly, wherein the capacitance pen comprises: the pen comprises a pen holder, wherein a conductive piece is arranged on the pen holder and is used for being attached to the skin of a user when the user uses the pen holder; the false touch signal output circuit is electrically connected with the conductive piece and is used for outputting a false touch signal through the conductive piece; when the user uses the pen holder and the distance between the pen holder and the touch screen is smaller than the preset distance, the false touch signal output circuit couples the false touch signal to the touch screen through the conductive piece and the skin of the user. When the distance between a user and the touch screen is smaller than a preset distance, the false touch signal output circuit outputs the false touch signal to the touch screen through the conductive piece and the skin of the user; so that the touch screen determines a human body false touch area and does not process touch signals in the human body false touch area; therefore, the problem that the writing experience of the capacitive pen is affected due to the fact that a human body touches the screen by mistake during writing of the capacitive pen is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a capacitive pen according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another embodiment of a capacitive pen according to the present invention;
FIG. 3 is a schematic diagram of a capacitive pen according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a capacitive pen according to another embodiment of the present invention.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
In order to solve the problem that the writing experience of the capacitive pen 10 is affected by the human body 20 touching the screen by mistake during writing of the capacitive pen 10, the invention provides the capacitive pen 10, the touch screen 30 and the intelligent equipment assembly.
Referring to fig. 1 and 4, in one embodiment of the present invention, the capacitive pen 10 includes:
the pen comprises a pen holder, wherein a conductive piece 120 is arranged on the pen holder, and the conductive piece 120 is used for being attached to the skin of a user when the user uses the pen holder;
the false touch signal output circuit 110 is electrically connected with the conductive member 120 and is used for outputting a false touch signal through the conductive member 120;
when the distance between the touch screen 30 and the pen holder is smaller than the preset distance, the false touch signal output circuit 110 couples the false touch signal to the touch screen 30 via the conductive member 120 and the skin of the user.
It should be noted that the capacitive pens 10 in the market can be broadly divided into an active capacitive pen 10 and a passive capacitive pen 10; wherein the active capacitance pen 10 has the capability of sending out a code printing signal to the touch screen 30; the tip of the passive capacitance pen 10 contacts the touch screen 30, which corresponds to a finger touching the screen. The capacitive touch screen 30 has two modes of detecting the finger of the human body 20 and detecting the downlink code signal of the active capacitive pen 10. When the capacitive pen 10 is the active capacitive pen 10, the touch screen 30 may receive a touch signal while receiving a code signal of the active capacitive pen 10, where the touch signal may be a signal generated by touching the touch screen 30 when the human body 20 writes with the capacitive pen 10, and the touch screen 30; the touch screen 30 processes the touch signal to generate a false alarm point, which affects the writing experience of the active capacitive pen 10. It is contemplated that the existing touch screen 30 may be multi-point operated, i.e., multiple touch signals on the screen may be detected and processed. For example: two fingers touch the touch screen 30 and act to zoom in or out the page; three-finger screen capturing. When the capacitive pen 10 is a passive capacitive pen 10, the touch of the passive capacitive pen 10 to the touch screen 30 corresponds to the touch of a finger to the touch screen 30, and at this time, if the human body 20 touches the touch screen 30, since the touch screen 30 can process a plurality of touch signals, the touch signal generated by the human body 20 touching the touch screen 30 will interfere with the writing content of the passive capacitive pen 10, thereby affecting the writing experience of the passive capacitive pen 10. It is noted that the capacitive pen 10 may include other kinds of capacitive pens 10 in addition to the active capacitive pen 10 and the passive capacitive pen 10. However, the capacitive pen 10 should be included in the protection scope of the present invention as long as the touch screen 30 can process the signal emitted from the capacitive pen 10 of the kind and the touch signal of the human body 20 at the same time. Further, there are cases where the capacitive pen 10 ends writing, but the human body 20 touches the touch screen 30 by mistake, and the human body 20 touches the touch screen 30 by mistake, so that the touch screen 30 receives and processes the touch signal by mistake, and the user is unwilling to have a result, for example: the drawn paint is smeared or deleted, the private text is sent by mistake, or the video progress bar is adjusted, etc. It should be noted that the portion of the user contacting the barrel is not necessarily the palm, for example: the disabled uses the sole holding pen to write.
The capacitive pen 10 includes a barrel and a nib. The pen point is used for touching the touch screen 30 to write; the pen holder is used for facilitating writing by a user when the user uses the capacitance pen 10. The user can hold the pen holder and use the pen point to touch the touch screen 30 for writing. The material of the pen holder is not limited herein. The pen holder is provided with a conductive piece 120, and the conductive piece 120 is used for being attached to the skin of a user when the user uses the pen holder. The conductive member 120 is made of conductive material, and the conductive member 120 may be metal or other materials with good conductivity. The false touch signal output circuit 110 is configured to output a false touch signal via the conductive member 120. Based on the conductive characteristics of the human body 20, the conductive member 120 contacts the human body 20, and the conductive member 120 outputs the false touch signal to the human body 20. The human body 20 is coupled to the specific signal, and if the human body 20 approaches the touch screen 30 and the distance between the human body 20 and the touch screen 30 is smaller than the preset distance, the false touch signal output circuit 110 couples the false touch signal to the touch screen 30 through the conductive member 120 and the skin of the user. The preset distance may be infinitely close to zero, and in particular, when the human body 20 contacts the touch screen 30, the contact portion of the human body 20 and the screen may transmit the false touch signal to the touch screen 30.
When the touch screen 30 receives the false touch signal, the intensity of the false touch signal may be detected to obtain the area and range of the false touch of the human body 20. The touch screen 30 may agree with the capacitive pen 10 with a frequency, and the error touch signal output by the capacitive pen 10 is a signal with the agreed frequency; when the touch screen 30 receives the signal with the frequency, the intensity of the false touch signal is detected to obtain the region and the range of the false touch of the human body 20, and the touch signal in the region and the range of the false touch is not processed. In addition, the human body 20 outputs a false touch signal to the touch screen 30, and it is easy to understand that the intensity of the false touch signal received by the region of the touch screen 30 corresponding to the nearest part of the human body 20 from the touch screen 30 is the largest. When the human body 20 is in contact with the touch screen 30, the intensity of the false touch signal of the area where the touch screen 30 is in contact with the human body 20 is maximum, and the farther from the contact point of the human body 20 with the touch screen 30, the smaller the intensity of the received false touch signal. The touch screen 30 may be set to a preset intensity value, and the area where the intensity of the false touch signal received by the touch screen is greater than the preset intensity is divided into the areas where the human body 20 touches by mistake. The preset intensity value may be determined by a developer. After the erroneous touch area of the human body 20 is divided, the touch screen 30 may not process the touch signal in the erroneous touch area of the human body 20, so that the erroneous touch signal of the human body 20 may not be processed when the user touches the touch screen 30 by mistake, thereby solving the problem that the erroneous touch of the human body 20 by mistake affects the writing experience of the capacitive pen 10 when the capacitive pen 10 writes.
The waveform and amplitude of the false touch signal are not limited. The frequency of the false touch signal is related to the frequency agreed by the capacitive pen 10 and the touch screen 30. In an embodiment of the present invention, the frequency of the false touch signal may be any frequency value between 100KHZ and 500KHZ. In another embodiment of the present invention, the false touch signal may be a coded signal. In addition, in order to ensure the quality of the false touch signal in the transmission process, the amplitude of the false touch signal may be adjusted according to whether the pen holder is conductive or not and whether the user is in sufficient contact with the conductive member 120 or not. If the pen holder is conductive or the user is in sufficient contact with the conductive member 120, the amplitude of the error signal may be any value between 2V and 3V; if the pen holder is not conductive and the user is not in sufficient contact with the conductive member 120, the amplitude of the error signal may be any value between 10V and 40V. The false touch signal output circuit 110 may be a signal generation circuit.
The present invention provides a capacitive pen 10, the capacitive pen 10 comprising: the pen comprises a pen holder, wherein a conductive piece 120 is arranged on the pen holder, and the conductive piece 120 is used for being attached to the skin of a user when the user uses the pen holder; the false touch signal output circuit 110 is electrically connected with the conductive member 120 and is used for outputting a false touch signal through the conductive member 120; when the distance between the touch screen 30 and the pen holder is smaller than the preset distance, the false touch signal output circuit 110 couples the false touch signal to the touch screen 30 via the conductive member 120 and the skin of the user. When the distance between the user and the touch screen 30 is smaller than the preset distance, the false touch signal output circuit 110 outputs the false touch signal to the touch screen 30 through the conductive piece 120 and the skin of the user; so that the touch screen 30 determines the false touch area of the human body 20 and does not process the touch signal in the false touch area of the human body 20; thus solving the problem that the human body 20 touches the screen by mistake when the capacitive pen 10 writes, and affecting the writing experience of the capacitive pen 10.
In one embodiment of the present invention, the conductive member 120 includes a metal electrode or a conductive ceramic electrode.
In an embodiment of the present invention, the number of the conductive elements 120 is plural.
In this embodiment, in order to improve the contact probability with the conductive member 120 or the contact area with the conductive member 120 when the user uses the capacitive pen 10; the number of the conductive members 120 may be plural, and the plurality of conductive members 120 may be dispersed on the pen holder, so that the user may attach to the skin of the user when using the capacitive pen 10.
Referring to fig. 2, in an embodiment of the present invention, the capacitive pen 10 further includes:
the main control circuit 130 is connected to the false touch signal output circuit 110, and is configured to output a control signal to the false touch signal output circuit 110 to control the false touch signal output circuit 110 to operate.
In this embodiment, the main control circuit 130 may include an MCU, a DSP (Digital Signal Process, digital signal processing Chip), an FPGA (Field Programmable Gate Array, programmable gate array Chip), an SOC (System On Chip), or the like. The master control circuit 130 is connected to the false touch signal output circuit 110, and is configured to output a control signal to control the touch signal output circuit to work. Consider the case where there is a need for matching the capacitive pen 10 with the touch screen 30, for example; when any one of the matched capacitive pen 10 and touch screen 30 is lost, the new capacitive pen 10 and touch screen 30 combination needs to agree on a frequency as the frequency of the false touch signal so that the touch screen 30 can recognize the false touch signal. The master circuit 130 may include a communication circuit, which may include a wireless communication module including: bluetooth module, wiFi module, zigBee module or star flash module, etc., the wireless communication module can communicate with the corresponding wireless communication module in the touch screen 30 to agree on the frequency of the false touch signal; for example: the WiFi module in the main control circuit 130 communicates with the WiFi module in the touch screen 30. The communication circuit may further include a communication interface, where when the communication interface is connected to the communication interface of the touch screen 30 through a communication line, the main control circuit 130 may communicate with the touch screen 30 to agree on the frequency of the false touch signal. The communication interface may include an SPI interface, an I2C interface, or a CAN bus interface, among others. It should be noted that the communication interface includes a corresponding communication protocol. The main control circuit 130 and the touch screen 30 can output a control signal to the false touch signal output circuit 110 after defining the frequency of the false touch signal, and control the false touch signal output circuit 110 to work so as to output the false touch signal with the frequency.
In addition, the main control circuit 130 may further output a control signal to the false touch signal output circuit 110 to control the false touch signal output circuit 110 to output a false touch signal with a frequency varying within a certain frequency range by a scanning manner, for example: the frequency of the error signal increases from 100KHZ to 500KHZ. The main control circuit 130 controls the false touch signal output circuit 110 to output a false touch signal within a certain frequency range in a scanning manner, so as to perform frequency matching with the touch screen 30; when the frequency of the false touch signal is consistent with the frequency received by the touch screen 30, the touch screen 30 may change the voltage and the current on the conductive member 120 by changing the impedance in the false touch area; the master control circuit 130 may detect the voltage or current variation on the conductive member 120, and know whether the frequency of the false touch signal at the time is consistent with the receiving frequency of the touch screen 30.
When the capacitive pen 10 is the active capacitive pen 10, the active capacitive pen 10 transmits a coding signal to the touch screen 30 through a pen tip; in order to distinguish the code signal and the false touch signal, the frequency of the code signal is inconsistent with the frequency of the false touch signal. The main control circuit 130 may output a control signal to the false touch signal output circuit 110, so that the frequency of the false touch signal output by the false touch signal output circuit 110 is different from the frequency of the code signal.
Referring to FIG. 3, in one embodiment of the present invention, the capacitive pen 10 further comprises
The contact detection module 140 is configured to detect a contact state of the pen body with the human body 20, and output a contact detection signal according to the contact state of the pen body with the human body 20;
the main control circuit 130 is connected to the contact detection module 140, and is configured to output a control signal according to the contact detection signal, so as to control the false touch signal output circuit 110 to work.
In this embodiment, in order to save energy, the capacitive pen 10 includes a contact detection module 140 for outputting a contact detection signal to the main control circuit 130 according to the contact state of the pen body with the human body 20. The main control circuit 130 may output a control signal to the output false touch signal output circuit 110 when the pen body is not in contact with the human body 20, so that the false touch signal output circuit 110 does not transmit a false touch signal; the main control circuit 130 may also output a control signal to the false touch signal output circuit 110 when the pen body contacts with the human body 20, so that the false touch signal output circuit 110 sends a false touch signal. The contact detection module 140 may be a capacitive sensor, a pressure sensor, a dynamic strain sensor, or an infrared sensor, etc.
In one embodiment of the present invention, the contact detection module 140 includes a capacitive sensor.
In this embodiment, the capacitive sensor is disposed at a position contacting with the skin of the user when the user uses the pen holder, and when the user uses the pen holder, the human body 20 applies a force to the capacitive sensor to deform the capacitive sensor, thereby changing the capacitance value of the capacitive sensor. The capacitive sensor outputs a contact detection signal to the main control circuit 130.
In one embodiment of the present invention, the contact detection module 140 includes a piezoelectric thin film sensor.
In this embodiment, the piezoelectric thin film sensor is disposed at a position contacting the skin of the user when the user uses the pen holder, and when the user uses the pen holder, the human body 20 applies a force to the piezoelectric thin film sensor to deform the piezoelectric thin film sensor, thereby generating an electrical signal. The piezoelectric thin film sensor outputs a contact detection signal to the main control circuit 130.
The present invention further provides a touch screen 30, where the touch screen 30 is configured to cooperate with the capacitive pen 10, and the touch screen 30 includes:
and the processing circuit is used for determining the false touch range of the human body 20 when the false touch signal is received, and not processing the touch signal when the touch signal is received in the false touch range.
It should be noted that the processing circuit may obtain the region and the range of the human body 20 touched by mistake by detecting the intensity of the touch signal by mistake in each region of the touch screen 30. When the human body 20 is in contact with the touch screen 30, the intensity of the false touch signal of the area where the touch screen 30 is in contact with the human body 20 is maximum, and the farther from the contact point of the human body 20 with the touch screen 30, the smaller the intensity of the received false touch signal. The touch screen 30 may be set to a preset intensity value, and the area where the intensity of the false touch signal received by the touch screen is greater than the preset intensity is divided into the areas where the human body 20 touches by mistake. The preset intensity value may be determined by a developer. After the erroneous touch area of the human body 20 is divided, the touch screen 30 may not process the touch signal in the erroneous touch area of the human body 20, so that the erroneous touch signal of the human body 20 may not be processed when the user touches the touch screen 30 by mistake, thereby solving the problem that the erroneous touch of the human body 20 by mistake affects the writing experience of the capacitive pen 10 when the capacitive pen 10 writes.
The invention also provides a smart device assembly comprising the capacitive pen 10 and the touch screen 30. The specific structures of the capacitive pen 10 and the touch screen 30 refer to the above embodiments, and since the present smart device assembly adopts all the technical solutions of all the embodiments, at least the technical solutions of the embodiments have all the beneficial effects, and are not described in detail herein.
The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all the equivalent structural changes made by the description of the present invention and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (9)
1. A capacitive pen, the capacitive pen comprising:
the pen comprises a pen holder, wherein a conductive piece is arranged on the pen holder and is used for being attached to the skin of a user when the user uses the pen holder;
the false touch signal output circuit is electrically connected with the conductive piece and is used for outputting a false touch signal through the conductive piece;
when the user uses the pen holder and the distance between the pen holder and the touch screen is smaller than the preset distance, the false touch signal output circuit couples the false touch signal to the touch screen through the conductive piece and the skin of the user.
2. The capacitive pen of claim 1, wherein the conductive member comprises a metal electrode or a conductive ceramic electrode.
3. The capacitive pen of claim 1, wherein the number of conductive elements is a plurality.
4. The capacitive pen of claim 1, wherein the capacitive pen further comprises:
the main control circuit is connected with the false touch signal output circuit and used for outputting a control signal to the false touch signal output circuit and controlling the false touch signal output circuit to work.
5. The capacitive stylus of claim 4, further comprising a contact detection module for detecting a contact state of the stylus body with the human body and outputting a contact detection signal according to the contact state of the stylus body with the human body;
the main control circuit is connected with the contact detection module and used for outputting a control signal according to the contact detection signal so as to control the false touch signal output circuit to work.
6. The capacitive pen of claim 5, wherein the contact detection module comprises a capacitive sensor.
7. The capacitive pen of claim 5, wherein the contact detection module comprises a piezoelectric thin film sensor.
8. A touch screen for cooperation with a capacitive pen as claimed in any one of claims 1 to 7, the touch screen comprising:
and the processing circuit is used for determining the human body false touch range when receiving the false touch signal and not processing the touch signal when receiving the touch signal in the false touch range.
9. A smart device assembly comprising a capacitive pen as claimed in any one of claims 1 to 7 and a touch screen as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311288826.8A CN117130498A (en) | 2023-09-28 | 2023-09-28 | Capacitive pen, touch screen and intelligent equipment assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311288826.8A CN117130498A (en) | 2023-09-28 | 2023-09-28 | Capacitive pen, touch screen and intelligent equipment assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117130498A true CN117130498A (en) | 2023-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311288826.8A Pending CN117130498A (en) | 2023-09-28 | 2023-09-28 | Capacitive pen, touch screen and intelligent equipment assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117130498A (en) |
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2023
- 2023-09-28 CN CN202311288826.8A patent/CN117130498A/en active Pending
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