CN115003023A - Capacitor key circuit board - Google Patents
Capacitor key circuit board Download PDFInfo
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- CN115003023A CN115003023A CN202210587768.8A CN202210587768A CN115003023A CN 115003023 A CN115003023 A CN 115003023A CN 202210587768 A CN202210587768 A CN 202210587768A CN 115003023 A CN115003023 A CN 115003023A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 113
- 238000001514 detection method Methods 0.000 claims description 5
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- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000003086 colorant Substances 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 235000019557 luminance Nutrition 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Abstract
The invention discloses a capacitor key circuit board, comprising: bottom plate, capacitance control module, drive control module, pilot lamp control line and at least one electric capacity keying unit, electric capacity keying unit includes: a capacitive plate and at least one indicator light; the bottom plate comprises a first layer and a second layer which are oppositely arranged, and the first layer of the bottom plate comprises capacitor arrangement areas which are in one-to-one correspondence with the capacitor plates; the capacitor plate is electrically connected with the capacitor control module, the capacitor control module is electrically connected with the drive control module, and the drive control module is electrically connected with the indicator lamp through an indicator lamp control line. When a user touches the capacitive plate, the capacitive plate generates a touch signal, and the capacitive control module generates a trigger signal according to the touch signal so as to enable the drive control module to light the indicator lamp. The capacitor plate is a touch control circuit board, the area is small, miniaturization of devices is facilitated, the capacitor plate and the indicating lamp are located on the same layer of the bottom plate, the structure is simple, and installation is convenient.
Description
Technical Field
The invention relates to the technical field of circuit boards, in particular to a capacitor key circuit board.
Background
At present, keys of manual operator products are mainly mechanical keys, and the mechanical keys are composed of a circuit board, an IC, a metal spring of a capacitor key and a single LED lamp.
However, the surface plate of the capacitor key, which is externally added with the metal spring, occupies a large space, and the thickness of the surface plate reaches 1cm, which is not beneficial to the miniaturization of the device.
Disclosure of Invention
The invention provides a capacitor key circuit board, which is used for saving the area of the capacitor key circuit board.
The invention provides a capacitor key circuit board, comprising: the capacitive touch screen comprises a bottom plate, a capacitive control module, a driving control module, an indicator light control line and at least one capacitive key unit, wherein the capacitive key unit comprises a capacitive plate and at least one indicator light unit; the bottom plate comprises a first layer and a second layer which are oppositely arranged, and the first layer of the bottom plate comprises capacitor arrangement areas which correspond to the capacitor plates one by one;
the capacitor plate and the indicator light units are integrated in a capacitor setting area of a first layer of the bottom plate, and the area of the capacitor setting area is equal to the sum of the area of the corresponding capacitor plate and the area of all the corresponding indicator light units; the capacitor plate is electrically connected with the capacitor control module, the capacitor control module is electrically connected with the drive control module, and the drive control module is electrically connected with the indicator light unit through the indicator light control line;
the capacitance plate is used for generating a touch signal according to the self-borne induction;
the capacitance control module is used for sending a detection signal to the capacitance plate, acquiring a touch signal of the capacitance plate and generating a trigger signal according to the touch signal;
the driving control module is used for controlling all the indicator light units to be lightened according to the trigger signal.
Optionally, the capacitor key circuit board further includes a first shielding line and a second shielding line, the first shielding line is located on the first layer of the bottom plate, the second shielding line is located on the second layer of the bottom plate, and a projection of the first shielding line on the second layer of the bottom plate coincides with a projection of the second shielding line on the second layer of the bottom plate; the first shielding wire and the second shielding wire are communicated through a through hole, and the first shielding wire surrounds the capacitance plate.
Optionally, the capacitance control module and the driving control module are disposed on a second layer of the bottom plate.
Optionally, the capacitor key circuit board includes a plurality of indicator light units arranged in an array, the capacitor setting area includes at least two parts penetrating through the strip-shaped indicator light setting area of the capacitor setting area, the indicator light units set up in the indicator light setting area, and the indicator light control line set up in the first layer of the bottom plate.
Optionally, the indicator light unit includes an indicator light, the indicator light control line includes a first driving line and a second driving line, a first end of the first driving line is electrically connected to the driving control module through a plurality of via holes, a second end of the first driving line is electrically connected to a positive terminal of each indicator light, a first end of the second driving line is electrically connected to the driving control module through a plurality of via holes, and a second end of the second driving line is electrically connected to a negative terminal of each indicator light.
Optionally, each of the indicator light units includes a first color indicator light, a second color indicator light, and a third color indicator light, and the indicator light control line includes a third driving line, a first sub-line, a second sub-line, and a third sub-line;
the first end of the third driving wire is electrically connected with the driving control module through a plurality of through holes, the second end of the third driving wire is electrically connected with the positive end of each first color indicator lamp, the positive end of each second color indicator lamp and the positive end of each third color indicator lamp, the first end of the first sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the first sub-line is electrically connected with the negative end of each first color indicator lamp, the first end of the second sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the second sub-line is electrically connected with the negative end of each second color indicator lamp, the first end of the third sub-line is electrically connected with the driving control module through a plurality of through holes, and the second end of the third sub-line is electrically connected with the negative end of each third color indicator lamp.
Optionally, the capacitor key circuit board includes a plurality of indicator light units arranged in an array, the capacitor setting area includes an indicator light setting area corresponding to the indicator light units one by one, the indicator light units are arranged in the indicator light setting area, and the indicator light control lines are arranged on the second layer of the bottom plate.
Optionally, each indicator light unit includes an indicator light, the indicator light control line includes a fourth driving line and a fifth driving line, a first end of the fourth driving line is electrically connected to the drive control module through a plurality of via holes, a second end of the fourth driving line is electrically connected to a positive terminal of each indicator light through a plurality of via holes, a first end of the fifth driving line is electrically connected to a first end of the drive control module through a plurality of via holes, and a second end of the fifth driving line is electrically connected to a negative terminal of each indicator light through a plurality of via holes.
Optionally, each of the indicator light units includes a fourth color indicator light, a fifth color indicator light and a sixth color indicator light, and the indicator light control line includes a sixth driving line, a fourth sub-line, a fifth sub-line and a sixth sub-line;
the first end of the sixth driving line is electrically connected with the driving control module through a plurality of via holes, the second end of the sixth driving line is electrically connected with the positive terminal of each fourth color indicator lamp, the positive terminal of the fifth color indicator lamp and the positive terminal of the sixth color indicator lamp through a plurality of via holes, the first end of the fourth sub-line is electrically connected with the driving control module through a plurality of through holes, the second end of the fourth sub-line is electrically connected with the negative electrode end of each fourth color indicator lamp through a plurality of through holes, the first end of the fifth sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the fifth sub-line is electrically connected with the negative electrode end of each fifth color indicator lamp through a plurality of through holes, the first end of the sixth sub-line is electrically connected with the drive control module through a plurality of through holes, and the second end of the sixth sub-line is electrically connected with the negative electrode end of each sixth color indicator lamp through a plurality of through holes.
Optionally, the bottom plate is a flexible circuit board, a flexible flat cable or a hard circuit board.
The embodiment of the invention provides a capacitor key circuit board, which comprises: bottom plate, capacitance control module, drive control module, pilot lamp control line and at least one electric capacity keying unit, electric capacity keying unit includes: a capacitive plate and at least one indicator light; the bottom plate comprises a first layer and a second layer which are oppositely arranged, and the first layer of the bottom plate comprises capacitor arrangement areas which are in one-to-one correspondence with the capacitor plates; the capacitor plate and the indicator light are integrated in a capacitor arrangement area of the first layer of the bottom plate; the capacitor plate is electrically connected with the capacitor control module, the capacitor control module is electrically connected with the drive control module, and the drive control module is electrically connected with the indicator lamp through an indicator lamp control line. When a user touches the capacitive plate, the capacitive plate generates a touch signal, and the capacitive control module generates a trigger signal according to the touch signal so as to enable the drive control module to light the indicator lamp. The capacitor plate is a touch control circuit board, the area is small, miniaturization of devices is facilitated, the capacitor plate and the indicating lamp are located on the same layer of the bottom plate, the structure is simple, and installation is convenient.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present invention, nor do they necessarily limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a circuit key circuit board according to an embodiment of the present invention;
fig. 2 is a schematic layout diagram of a capacitor key circuit board according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another circuit key circuit board according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another circuit key circuit board according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic structural diagram of a capacitor key circuit board according to an embodiment of the present invention, and referring to fig. 1, the capacitor key circuit board includes: the device comprises a bottom plate 10, a capacitance control module 13, a driving control module 14, an indicator light control line and at least one capacitance key unit, wherein the capacitance key unit comprises a capacitance plate 11 and at least one indicator light unit 12; the bottom plate 10 comprises a first layer and a second layer which are oppositely arranged, and the first layer of the bottom plate 10 comprises capacitor arrangement areas 15 which are in one-to-one correspondence with the capacitor plates 11;
the capacitor plates 11 and the indicator light units 12 are integrated in a capacitor arrangement area 15 of a first layer of the bottom plate 10, and the area of the capacitor arrangement area 15 is equal to the sum of the area of the corresponding capacitor plate 11 and the area of all the corresponding indicator light units 12; the capacitor plate 11 is electrically connected with the capacitor control module 13, the capacitor control module 13 is electrically connected with the drive control module 14, and the drive control module 14 is electrically connected with the indicator light unit 12 through an indicator light control line;
the capacitive plate 11 is used for generating a touch signal according to the induction received by the capacitive plate;
the capacitance control module 13 is configured to send a detection signal to the capacitive plate 11, acquire a touch signal of the capacitive plate 11, and generate a trigger signal according to the touch signal;
the driving control module 14 is used for controlling all the indicator light units 12 to light up according to the trigger signal.
The first layer of the base plate 10 is the side close to the user, and the second layer of the base plate 10 is the side opposite to the first layer. The driving control module 14 and the capacitance control module 13 may be disposed on a first layer of the substrate 10, or may be disposed on a second layer of the substrate 10. The base plate 10 may be a printed circuit board or a flexible circuit board, which is not particularly limited in this embodiment. The indicator light unit 12 includes an LED lamp. The capacitor plate 11 may be made of copper, which is more tolerant to high temperature and high humidity environment than Indium Tin Oxide (ITO), and has stronger environmental applicability, and may be applied to a severe environment. The capacitor arrangement regions 15 correspond to the capacitor plates 11 one by one, and all the indicator light units 12 corresponding to the capacitor arrangement regions 15 are all the indicator light units 12 arranged in the capacitor arrangement regions. The area of the capacitance setting region 15 is equal to the sum of the area of the corresponding capacitance plate 11 and the area of all the indicator light units 12 corresponding to the capacitance setting region 15.
The capacitor key circuit board comprises at least one capacitor key unit, and one capacitor key unit can form one key. In other embodiments, the capacitor key circuit board may include a plurality of capacitor key units, and each capacitor key unit includes a capacitor plate 11 electrically connected to one port of the capacitor control module 13, so that the information transmission of each capacitor plate 11 and the capacitor control module 13 is not mutually affected. It should be noted that when the capacitor key circuit board is actually used, an operation panel is covered outside the capacitor key circuit board and used as an interface for a user to directly operate. The user can light all pilot lamp units 12 through the region that corresponds to electric capacity board 11 on the touch operation panel, because of the button is electric capacity button, electric capacity button and user point touch face sensitivity adjustable in 8 mm's distance, the finger need not direct touch electric capacity board 11, and then reduces the damage that causes because of the touch to electric capacity board 11, is favorable to prolonging the life of device.
The capacitance control module 13 sends a detection signal to the capacitance plate 11 in real time through the capacitance control line L1, wherein the detection signal may be a square wave, and for example, the voltage of the square wave may be 5V. Meanwhile, the capacitance control module 13 further obtains whether the capacitive plate 11 generates a touch signal through the capacitance control line L1, when the user touches the capacitive plate 11, the capacitive plate 11 will pull down the 5V voltage under the action of the sensing, which is exemplarily to 2.5V, and at this time, 2.5V is the touch signal. After the capacitance control module 13 acquires the touch signal, it generates a trigger signal to make the driving control module 14 drive all the indicator light units 12 in the capacitance setting area 15 to which the capacitance plate 11 belongs to light up.
The capacitor plate is a touch control circuit board, the area is small, miniaturization of devices is facilitated, the capacitor plate and the indicator lamp unit are located on the same layer of the bottom plate, the structure is simple, and installation is convenient. Because the button is the electric capacity button, the electric capacity button is adjustable with user's finger touch face sensation in 8 mm's distance, and the finger need not direct touch electric capacity board, and then reduces the damage that causes because of the touch to electric capacity board, is favorable to prolonging the life of device.
With continued reference to fig. 1, optionally, the capacitive button circuit board further includes a first shielding line L2 and a second shielding line, the first shielding line L2 is located on the first layer of the bottom board 10, the second shielding line is located on the second layer of the bottom board 10, and a projection of the first shielding line L2 on the second layer of the bottom board 10 coincides with a projection of the second shielding line on the second layer of the bottom board 10; the first shielded line L2 and the second shielded line communicate with each other through the via hole, and the first shielded line L2 surrounds the capacitor plate 11.
The first and second layers of the backplane 10 each include a shield line, not shown in the second shield line drawing 1 of the second layer of the backplane 10, only the first shield line L2 being shown by way of example. The second shield wire also surrounds the capacitor plate 11. When the second shielding line L2 surrounds the capacitor plate 11, it is necessary to leave a gap so that the capacitor control line L1 connected to the capacitor plate 11 extends to be connected to the capacitor control module 13, instead of being enclosed. The first shielding line L2 is disposed around the capacitor plate 11, and can protect the capacitor plate from external interference signals. Specifically, the capacitance control module 13 may determine whether the user's touch is valid according to a difference between the signal (voltage value) on the capacitance control line L1 and the signal (voltage value) on the first shield line L2. When the voltage on the capacitance control line L1 and the voltage on the first shielding line L2 are less than the set voltage threshold, the capacitance control module 13 determines that the user touch is valid, and then generates a trigger signal to enable the driving control module 14 to control the indicator light corresponding to the capacitance plate 11 to be turned on. Through the arrangement of the first shielding line L2 and the second shielding line, the capacitive plate 11 can be prevented from being interfered by external signals, and the accuracy of signal transmission is ensured.
Optionally, the capacitance control module and the driving control module are disposed on the second layer of the bottom plate.
When the number of keys is more, namely the number of the capacitor key units is more, the capacitor control module and the drive control module are arranged on the second layer of the bottom plate on the bottom plate with fixed size, the arrangement of a plurality of capacitor plates on the first layer of the bottom plate is not influenced, the area of the bottom plate is reasonably utilized, so that more capacitor plates are arranged, and the requirement that a plurality of keys are required to be arranged by a user is met.
With reference to fig. 1, optionally, the capacitor key circuit board includes a plurality of indicator light units 12 arranged in an array, the capacitor setting area 15 includes at least two strip-shaped indicator light setting areas 16, at least two portions of which penetrate through the capacitor setting area 15, the indicator light units 12 are disposed in the indicator light setting areas 16, and the indicator light control lines are disposed on the first layer of the bottom plate 10.
A plurality of indicator light units 12 are arranged in a stripe pattern in the indicator light setting area 16 in a longitudinal direction so that the touch area is lighted when the capacitive plate 11 is touched. The indicator light unit 12 and the capacitor plate 11 are in an interdigital shape, so that the area of the capacitor key circuit board is saved, and the miniaturization of devices is facilitated. The pilot lamp control line sets up in the first layer of bottom plate 10 for the pilot lamp control line that is located the first layer of bottom plate 10 can directly be connected with pilot lamp unit 12, causes the through-hole skew because of the precision of punching when avoiding punching, leads to the problem of pilot lamp control line and pilot lamp contact failure, avoids punching the skew simultaneously to the damage of electric capacity control module 13 and drive control module 14.
Fig. 2 is a layout schematic diagram of a capacitor key circuit board according to an embodiment of the present invention, referring to fig. 1 and fig. 2, optionally, the indicator light unit 12 includes an indicator light 121, the indicator light control line includes a first drive line L3 and a second drive line L4, a first end of the first drive line L3 is electrically connected to the drive control module 14 through a plurality of via holes, a second end of the first drive line L3 is electrically connected to a positive terminal of each indicator light 12, a first end of the second drive line L4 is electrically connected to the drive control module 14 through a plurality of via holes, and a second end of the second drive line L4 is electrically connected to a negative terminal of each indicator light 12.
Fig. 2 shows only a partial layout of the circuit board of the capacitive button, in this embodiment, the indicator lights 121 are all monochrome indicator lights, and exemplarily, all the indicator lights 121 are red, or yellow, or green, or any other color. The positive terminals of all the indicator lights 121 are connected to the driving control module 14 through the first driving line L3 after being connected to each other, and similarly, the negative terminals of all the indicator lights 121 are connected to the driving control module 14 through the second driving line L4 after being connected to each other. When the driving control module 14 receives the trigger signal, the first driving line L3 outputs a high level, and the second driving line L4 outputs a low level, so as to drive all the indicator lights 121 to light up. It should be noted that, when the driving control module 14 is located on the second layer of the bottom plate 10, and the first driving line L3 is electrically connected to the driving control module 14 through the via hole, the first driving line L3 is connected to the connecting line located on the second layer of the bottom plate 10 through the via hole, and the connecting line is further connected to the driving control module 14, so as to electrically connect the first driving line L3 to the driving control module 14, and the connection of the second driving line L4 to the driving control module 14 is the same.
Optionally, each indicator light unit includes a first color indicator light, a second color indicator light, and a third color indicator light, and the indicator light control line includes a third driving line, a first sub-line, a second sub-line, and a third sub-line;
the first end of the third driving wire is electrically connected with the drive control module through a plurality of through holes, the second end of the third driving wire is electrically connected with the positive ends of the first color indicator lamps, the positive ends of the second color indicator lamps and the positive ends of the third color indicator lamps, the first end of the first sub-wire is electrically connected with the drive control module through a plurality of through holes, the second end of the first sub-wire is electrically connected with the negative ends of the first color indicator lamps, the first end of the second sub-wire is electrically connected with the drive control module through a plurality of through holes, the second end of the second sub-wire is electrically connected with the negative ends of the second color indicator lamps, the first end of the third sub-wire is electrically connected with the drive control module through a plurality of through holes, and the second end of the third sub-wire is electrically connected with the negative ends of the third color indicator lamps.
In this embodiment, each indicator light unit includes three indicator lights, the first color indicator light may be a red light emitting indicator light, the second color indicator light may be a green light emitting indicator light, and the third color indicator light may be a blue light emitting indicator light, and in other embodiments, the colors of the first color indicator light, the second color indicator light, and the third color indicator light may be set according to user requirements, which is not specifically limited in this embodiment. The indicator light unit comprises indicator lights with three colors, so that color display can be realized when the capacitor plate is touched. The first color indicator lamp that each pilot lamp unit includes, the positive terminal intercommunication of second color indicator lamp and third color indicator lamp, be connected to drive control module through the third drive wire after the intercommunication, the negative pole end of the first color indicator lamp of each pilot lamp unit all communicates, be connected to drive control module through first sub-line after the intercommunication, the negative pole end of the second color indicator lamp of each pilot lamp unit all communicates, be connected to drive control module through the second sub-line after the intercommunication, the negative pole end of the third color indicator lamp of each pilot lamp unit all communicates, be connected to drive control module through the third sub-line after the intercommunication. After the drive control module receives the trigger signal, the first level is transmitted to all the indicator lamps through the third drive line, the second level is transmitted to all the first color indicator lamps through the first sub-lines, the third level is transmitted to all the second color indicator lamps through the second sub-lines, the fourth level is transmitted to all the third color indicator lamps through the third sub-lines, wherein the first level is a high level, the second level, the third level and the fourth level are low levels, the second level, the third level and the fourth level can be different in potential magnitude, further the first color indicator lamp, the second color indicator lamp and the third color indicator lamp are different in luminous brightness, and display of colors required by users is achieved. The third drive wire, first sub-line, the sub-line of second and the sub-line of third all are located the first layer of bottom plate, make the third drive wire, first sub-line, the sub-line of second and the sub-line of third can be directly connected with the pilot lamp in the first layer of bottom plate, compare in the second layer that the pilot lamp control line is located the bottom plate, need be connected with the pilot lamp through the via hole, in the embodiment can avoid punching, the skew of punching causes the risk with the pilot lamp contact failure, be favorable to guaranteeing the stability of device, reliability. While avoiding damage to the capacitance control module 13 and the drive control module 14 from punch misalignment.
Fig. 3 is a schematic structural diagram of another capacitor key circuit board according to an embodiment of the present invention, and referring to fig. 3, optionally, the capacitor key circuit board includes a plurality of indicator light units 12 arranged in an array, the capacitor setting area 15 includes indicator light setting areas 16 corresponding to the indicator light units 12 one to one, the indicator light units 12 are disposed in the indicator light setting areas 16, and the indicator light control lines are disposed on the second layer of the bottom plate 10.
Each indicator light unit 12 in this embodiment is rectangular and arranged in an array in the capacitor plate setting area 15, so that when the capacitor plate 11 is touched, the touch area is lighted. The indicator light unit 12 is embedded in the capacitor plate setting area 14, so that the area of the capacitor key circuit board is saved, and the miniaturization of devices is facilitated.
With continued reference to fig. 3, optionally, each indicator light unit 12 includes an indicator light 121, the indicator light control line includes a fourth driving line L5 and a fifth driving line L6, a first end of the fourth driving line L5 is electrically connected to the driving control module 14 through a plurality of via holes, a second end of the fourth driving line L5 is electrically connected to the positive terminal of each indicator light 121 through a plurality of via holes, a first end of the fifth driving line L6 is electrically connected to the first end of the driving control module 14 through a plurality of via holes, and a second end of the fifth driving line L6 is electrically connected to the negative terminal of each indicator light 121 through a plurality of via holes.
In the present embodiment, the indicator lights 121 are all monochrome indicator lights, and for example, all the indicator lights 121 are red, or yellow, or green, or any other color. The positive terminals of all the indicator lights 121 are connected and communicated with each other and then connected to the driving control module 14 through the fourth driving line L5, and similarly, the negative terminals of all the indicator lights 121 are connected and communicated with each other and then connected to the driving control module 14 through the fifth driving line L6. When the driving control module 14 receives the trigger signal, it outputs a high level through the fourth driving line L5 and a low level through the fifth driving line L6, so as to drive all the indicator lights 121 to be turned on. In this embodiment, the fourth driving line L5 and the fifth driving line L6 are both disposed on the second layer of the bottom plate 10, and do not occupy the area of the first layer of the bottom plate 10, so that the first layer of the bottom plate 10 can be provided with more capacitive plates, and the capacitive button circuit board can be provided with a plurality of buttons, thereby satisfying different functions of the user. It should be noted that, when the fourth driving line L5 located on the second layer of the base plate 10 is electrically connected to the positive terminal 14 of the indicator light 121 through the via hole, the fourth driving line L5 is connected to the connecting line located on the second layer of the base plate 10 through the via hole, and the connecting line is further connected to the positive terminal 14 of the indicator light 121, so as to achieve the electrical connection between the fourth driving line L4 and the positive terminal of the indicator light 121, and the connection between the fifth driving line L6 and the negative terminal of the indicator light 121 are the same.
Fig. 4 is a schematic structural diagram of another capacitor key circuit board according to an embodiment of the present invention, referring to fig. 4, optionally, each indicator light unit 12 includes a fourth color indicator light 122, a fifth color indicator light 123 and a sixth color indicator light 124, and the indicator light control line includes a sixth driving line L7, a fourth sub-line L8, a fifth sub-line L9 and a sixth sub-line L10;
a first end of the sixth driving line L7 is electrically connected to the driving control module 14 through a plurality of via holes, a second end of the sixth driving line L7 is electrically connected to the positive terminal of each fourth color indicator 122 through a plurality of via holes, the positive terminal of the fifth color indicator light 123 is electrically connected with the positive terminal of the sixth color indicator light 124, the first terminal of the fourth sub-line L8 is electrically connected with the driving control module 14 through a plurality of via holes, the second terminal of the fourth sub-line L8 is electrically connected with the negative terminals of the fourth color indicator lights 122 through a plurality of via holes, the first terminal of the fifth sub-line L9 is electrically connected with the driving control module 14 through a plurality of via holes, the second terminal of the fifth sub-line L9 is electrically connected with the negative terminals of the fifth color indicator lights 123 through a plurality of via holes, the first terminal of the sixth sub-line L10 is electrically connected with the driving control module 14 through a plurality of via holes, and the second terminal of the sixth sub-line L10 is electrically connected with the negative terminals of the sixth color indicator lights 124 through a plurality of via holes.
In this embodiment, each indicator light unit 12 includes three indicator lights, the fourth color indicator light 122 may be a red-emitting indicator light, the fifth color indicator light 123 may be a green-emitting indicator light, and the sixth color indicator light 124 may be a blue-emitting indicator light, in other embodiments, the colors of the fourth color indicator light 122, the fifth color indicator light 123, and the sixth color indicator light 124 may be set according to user requirements, which is not specifically limited in this embodiment. The indicator light unit 12 includes indicator lights of three colors to realize a color display when the capacitive plate 11 is touched. The positive terminals of the fourth color indicator lamp 122, the fifth color indicator lamp 123 and the sixth color indicator lamp 124 of each indicator lamp unit 12 are communicated and then connected to the driving control module 14 through a sixth driving line L7, the negative terminals of the fourth color indicator lamp 122 of each indicator lamp unit 12 are communicated and then connected to the driving control module 14 through a fourth sub-line L8, the negative terminals of the fifth color indicator lamp 123 of each indicator lamp unit 12 are communicated and then connected to the driving control module 14 through a fifth sub-line L9, the negative terminals of the sixth color indicator lamp 124 of each indicator lamp unit 12 are communicated and then connected to the driving control module 14 through a sixth sub-line L10. After receiving the trigger signal, the driving control module 14 transmits a fifth level to all the indicator light units 12 through the sixth driving line L7, transmits a sixth level to all the fourth color indicator lights 122 through the fourth sub-line L8, transmits a seventh level to all the fifth color indicator lights 123 through the fifth sub-line L9, and transmits an eighth level to all the sixth color indicator lights 124 through the sixth sub-line L10, wherein the fifth level is a high level, the sixth level, the seventh level and the eighth level are low levels, and the magnitudes of the potentials of the sixth level, the seventh level and the eighth level may be different, so that the light emitting luminances of the fourth color indicator lights 122, the fifth color indicator lights 123 and the sixth color indicator lights 124 are different, thereby realizing the display of the color desired by the user. The sixth driving line L7, the fourth sub-line L8, the fifth sub-line L9 and the sixth sub-line L10 are all located on the second layer of the bottom plate 10, do not occupy the area of the first layer of the bottom plate 10, so that the first layer of the bottom plate 10 can be provided with more capacitor plates, and further the capacitor key circuit board can be provided with a plurality of keys, thereby satisfying different functions of users.
Optionally, the bottom plate is a flexible circuit board, a flexible flat cable or a hard circuit board. The bottom plate is a hard circuit board which can be arranged on a regular operation panel. The bottom plate is a flexible circuit board or a flexible flat cable, curved surface display can be achieved, the capacitor key circuit board can be installed on an irregular operation surface, and the applicability of the capacitor key circuit board is higher.
The above-described embodiments should not be construed as limiting the scope of the invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A capacitive button circuit board, comprising: the capacitive touch screen comprises a bottom plate, a capacitive control module, a driving control module, an indicator light control line and at least one capacitive key unit, wherein the capacitive key unit comprises a capacitive plate and at least one indicator light unit; the bottom plate comprises a first layer and a second layer which are oppositely arranged, and the first layer of the bottom plate comprises capacitor arrangement areas which are in one-to-one correspondence with the capacitor plates;
the capacitor plate and the indicator light units are integrated in a capacitor setting area of a first layer of the bottom plate, and the area of the capacitor setting area is equal to the sum of the area of the corresponding capacitor plate and the area of all the corresponding indicator light units; the capacitor plate is electrically connected with the capacitor control module, the capacitor control module is electrically connected with the driving control module, and the driving control module is electrically connected with the indicator light unit through the indicator light control line;
the capacitance plate is used for generating a touch signal according to the self-borne induction;
the capacitance control module is used for sending a detection signal to the capacitance plate, acquiring a touch signal of the capacitance plate and generating a trigger signal according to the touch signal;
the driving control module is used for controlling all the indicator light units to be lightened according to the trigger signal.
2. The capacitive button circuit board of claim 1, further comprising a first shielding line and a second shielding line, wherein the first shielding line is located on a first layer of the bottom plate, the second shielding line is located on a second layer of the bottom plate, and a projection of the first shielding line on the second layer of the bottom plate coincides with a projection of the second shielding line on the second layer of the bottom plate; the first shielding wire and the second shielding wire are communicated through a through hole, and the first shielding wire surrounds the capacitor plate.
3. The capacitive button circuit board of claim 1, wherein the capacitive control module and the driving control module are disposed on a second layer of the chassis.
4. The capacitive button circuit board of claim 3, wherein the capacitive button circuit board comprises a plurality of indicator light units arranged in an array, the capacitive setting area comprises at least two strip-shaped indicator light setting areas partially penetrating through the capacitive setting area, the indicator light units are arranged in the indicator light setting areas, and the indicator light control lines are arranged on the first layer of the bottom plate.
5. The capacitive button circuit board of claim 4, wherein the indicator light unit comprises indicator lights, the indicator light control line comprises a first driving line and a second driving line, a first end of the first driving line is electrically connected to the driving control module through a plurality of vias, a second end of the first driving line is electrically connected to a positive terminal of each of the indicator lights, a first end of the second driving line is electrically connected to the driving control module through a plurality of vias, and a second end of the second driving line is electrically connected to a negative terminal of each of the indicator lights.
6. The capacitive button circuit board of claim 4, wherein each of the indicator light units comprises a first color indicator light, a second color indicator light and a third color indicator light, and the indicator light control line comprises a third driving line, a first sub-line, a second sub-line and a third sub-line;
the first end of the third driving wire is electrically connected with the driving control module through a plurality of through holes, the second end of the third driving wire is electrically connected with the positive end of each first color indicator lamp, the positive end of each second color indicator lamp and the positive end of each third color indicator lamp, the first end of the first sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the first sub-line is electrically connected with the negative end of each first color indicator lamp, the first end of the second sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the second sub-line is electrically connected with the negative end of each second color indicator lamp, the first end of the third sub-line is electrically connected with the driving control module through a plurality of through holes, and the second end of the third sub-line is electrically connected with the negative end of each third color indicator lamp.
7. The capacitive button circuit board of claim 3, wherein the capacitive button circuit board comprises a plurality of indicator light units arranged in an array, the capacitive setting area comprises indicator light setting areas corresponding to the indicator light units one to one, the indicator light units are arranged in the indicator light setting areas, and the indicator light control lines are arranged on the second layer of the bottom plate.
8. The capacitive button circuit board of claim 7, wherein each of the indicator light units comprises an indicator light, the indicator light control line comprises a fourth driving line and a fifth driving line, a first end of the fourth driving line is electrically connected to the driving control module through a plurality of via holes, a second end of the fourth driving line is electrically connected to a positive terminal of each of the indicator lights through a plurality of via holes, a first end of the fifth driving line is electrically connected to a first end of the driving control module through a plurality of via holes, and a second end of the fifth driving line is electrically connected to a negative terminal of each of the indicator lights through a plurality of via holes.
9. The capacitive button circuit board of claim 7, wherein each of the indicator light units comprises a fourth color indicator light, a fifth color indicator light and a sixth color indicator light, and the indicator light control line comprises a sixth driving line, a fourth sub-line, a fifth sub-line and a sixth sub-line;
the first end of the sixth driving line is electrically connected with the driving control module through a plurality of via holes, the second end of the sixth driving line is electrically connected with the positive terminal of each fourth color indicator lamp, the positive terminal of the fifth color indicator lamp and the positive terminal of the sixth color indicator lamp through a plurality of via holes, the first end of the fourth sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the fourth sub-line is electrically connected with the negative electrode end of each fourth color indicator lamp through a plurality of through holes, the first end of the fifth sub-line is electrically connected with the drive control module through a plurality of through holes, the second end of the fifth sub-line is electrically connected with the negative electrode end of each fifth color indicator lamp through a plurality of through holes, the first end of the sixth sub-line is electrically connected with the drive control module through a plurality of through holes, and the second end of the sixth sub-line is electrically connected with the negative electrode end of each sixth color indicator lamp through a plurality of through holes.
10. The capacitive button circuit board of any one of claims 1 to 9, wherein the base board is a flexible circuit board or a flex cable or a rigid circuit board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210587768.8A CN115003023A (en) | 2022-05-26 | 2022-05-26 | Capacitor key circuit board |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210587768.8A CN115003023A (en) | 2022-05-26 | 2022-05-26 | Capacitor key circuit board |
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| CN115003023A true CN115003023A (en) | 2022-09-02 |
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| CN202210587768.8A Pending CN115003023A (en) | 2022-05-26 | 2022-05-26 | Capacitor key circuit board |
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Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091906A1 (en) * | 2007-10-08 | 2009-04-09 | Whirlpool Corporation | Capacitive touch switch and domestic appliance provided with such switch |
| CN101488740A (en) * | 2008-01-16 | 2009-07-22 | 联想(北京)有限公司 | Touching type press-key and control method thereof |
| US20110084607A1 (en) * | 2009-10-13 | 2011-04-14 | National Semiconductor Corporation | Integrated driver system architecture for light emitting diodes (LEDS) |
| US20110140935A1 (en) * | 2009-12-15 | 2011-06-16 | Whirlpool Corporation | Icon illumination for capacitive touch switch |
| JP2013235313A (en) * | 2012-05-07 | 2013-11-21 | Takuo Takai | Input device for touch switch |
| CN107077223A (en) * | 2014-10-17 | 2017-08-18 | 诺瓦利亚公司 | Capacitive touch device |
| CN206620110U (en) * | 2017-01-09 | 2017-11-07 | 厦门飞浪科技有限公司 | A kind of capacitive touch key device |
| CN207039561U (en) * | 2017-03-16 | 2018-02-23 | 安明斯智能股份有限公司 | A kind of capacitance touching control type building inter-speaking device button module |
| CN208225751U (en) * | 2018-06-08 | 2018-12-11 | 宁波智轩物联网科技有限公司 | A kind of adjustable switch panel of key-press backlight |
| US20190196085A1 (en) * | 2017-12-22 | 2019-06-27 | Dura Operating, Llc | Laminated printed circuit board with over-molded light guide |
| CN209930232U (en) * | 2019-04-11 | 2020-01-10 | 深圳市飞翼科技有限公司 | Indicator lamp with capacitive touch keys |
| US20200033979A1 (en) * | 2018-07-26 | 2020-01-30 | Apple Inc. | Touch sensing utilizing integrated micro circuitry |
| US20200133431A1 (en) * | 2018-10-31 | 2020-04-30 | Google Llc | Pcb with integrated touch sensors |
| CN111917404A (en) * | 2020-07-08 | 2020-11-10 | 上汽大众汽车有限公司 | Touch switch assembly with active optical feedback and control method |
| US20210068238A1 (en) * | 2019-08-27 | 2021-03-04 | Lutron Technology Company Llc | Control device having a visible indicator |
-
2022
- 2022-05-26 CN CN202210587768.8A patent/CN115003023A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090091906A1 (en) * | 2007-10-08 | 2009-04-09 | Whirlpool Corporation | Capacitive touch switch and domestic appliance provided with such switch |
| CN101488740A (en) * | 2008-01-16 | 2009-07-22 | 联想(北京)有限公司 | Touching type press-key and control method thereof |
| US20110084607A1 (en) * | 2009-10-13 | 2011-04-14 | National Semiconductor Corporation | Integrated driver system architecture for light emitting diodes (LEDS) |
| US20110140935A1 (en) * | 2009-12-15 | 2011-06-16 | Whirlpool Corporation | Icon illumination for capacitive touch switch |
| JP2013235313A (en) * | 2012-05-07 | 2013-11-21 | Takuo Takai | Input device for touch switch |
| CN107077223A (en) * | 2014-10-17 | 2017-08-18 | 诺瓦利亚公司 | Capacitive touch device |
| CN206620110U (en) * | 2017-01-09 | 2017-11-07 | 厦门飞浪科技有限公司 | A kind of capacitive touch key device |
| CN207039561U (en) * | 2017-03-16 | 2018-02-23 | 安明斯智能股份有限公司 | A kind of capacitance touching control type building inter-speaking device button module |
| US20190196085A1 (en) * | 2017-12-22 | 2019-06-27 | Dura Operating, Llc | Laminated printed circuit board with over-molded light guide |
| CN208225751U (en) * | 2018-06-08 | 2018-12-11 | 宁波智轩物联网科技有限公司 | A kind of adjustable switch panel of key-press backlight |
| US20200033979A1 (en) * | 2018-07-26 | 2020-01-30 | Apple Inc. | Touch sensing utilizing integrated micro circuitry |
| US20200133431A1 (en) * | 2018-10-31 | 2020-04-30 | Google Llc | Pcb with integrated touch sensors |
| CN209930232U (en) * | 2019-04-11 | 2020-01-10 | 深圳市飞翼科技有限公司 | Indicator lamp with capacitive touch keys |
| US20210068238A1 (en) * | 2019-08-27 | 2021-03-04 | Lutron Technology Company Llc | Control device having a visible indicator |
| CN111917404A (en) * | 2020-07-08 | 2020-11-10 | 上汽大众汽车有限公司 | Touch switch assembly with active optical feedback and control method |
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