CN102385451B - Luminous band display type sliding touch bar and display method of touch luminous band - Google Patents
Luminous band display type sliding touch bar and display method of touch luminous band Download PDFInfo
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- CN102385451B CN102385451B CN 201010611782 CN201010611782A CN102385451B CN 102385451 B CN102385451 B CN 102385451B CN 201010611782 CN201010611782 CN 201010611782 CN 201010611782 A CN201010611782 A CN 201010611782A CN 102385451 B CN102385451 B CN 102385451B
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- 230000006698 induction Effects 0.000 claims description 76
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- 238000000576 coating method Methods 0.000 claims description 4
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- 230000001788 irregular Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 5
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- 239000000919 ceramic Substances 0.000 description 1
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Abstract
The invention relates to a display method of a touch luminous band based on a sliding touch bar; the display method comprises the following steps: a plurality of light transmitting conductive inductive sheets are arranged on the upper surface of a transparent skeleton at intervals; each light transmitting conductive inductive sheet is connected with one corresponding electric charge detecting unit on a circuit board to form an inductive key; at least one LED (Light-Emitting Diode) is welded in a lower cavity of the transparent skeleton, on the circuit board and in a projection area corresponding to each light transmitting conductive inductive plate to form the sliding touch bar; and when a finger touches the sliding touch bar in a sliding or point manner by a dielectric layer on the sliding touch bar, the induced inductive sheet is detected by using the corresponding electric charge detecting unit, is further processed by an identification control module to drive the corresponding LED (Light-Emitting Diode) to give out light to form the luminous band and transmit data to a host machine. The sliding touch bar is a strip-shaped component comprising a plurality of inductive key structures, can identify that the inductive sheet is inducted in a sliding touch or point touch manner and drives the corresponding LED (Light-Emitting Diode) to give out light to form the luminous band; and the sliding touch bar can be arranged on a window of an operative surface shell of a small home appliance product to be used as an input part.
Description
Technical Field
The present invention relates to an inductive input device for electronic products, and more particularly, to a sliding touch strip having a light band display function, which is disposed in a small household appliance such as an induction cooker or an electric heater and used as an input means, and a touch band display method using the same.
Background
The input devices, such as mechanical switch type and electronic type input devices, are mostly arranged in household appliances, especially small household appliances, but most of the existing input devices can only adapt to single-key click input, have low input speed, increase misoperation during quick click input and sliding touch input, and have no light display function during input operation.
Disclosure of Invention
In order to overcome the defects of the input device used by the existing small household appliance, the invention provides the light band display type sliding touch strip and the touch light band display method, which can input signals to the main controller in a fast point touch and sliding touch mode, have a light band display function and can meet the design requirements of the small household appliance.
The invention relates to a light band display type sliding touch control strip which comprises a circuit board, a transparent framework and a plurality of light-transmitting conductive induction sheets, wherein the circuit board is provided with an identification control module, the transparent framework is provided with a lower cavity, the plurality of light-transmitting conductive induction sheets are attached to the upper surface of the transparent framework at intervals, the light-transmitting conductive induction sheets are arranged in a transverse or row mode, each light-transmitting conductive induction sheet is connected with a corresponding charge detection unit on the circuit board through a pin to form an induction key, at least one LED is welded in the lower cavity of the transparent framework and in an image area, corresponding to each light-transmitting conductive induction sheet, on the circuit board, and the identification control module is used for identifying that the light-transmitting conductive induction sheets are subjected to sliding touch.
The transparent conductive induction sheet can be a transparent conductive film sheet, a transparent conductive coating, a metal sheet with holes or a transparent conductive wire woven mesh sheet and the like. The light-transmitting conductive induction sheet is circular, rectangular or irregular.
The identification control module comprises a microprocessor, a signal generator connected to a control end of the microprocessor, an analog-to-digital converter connected with an input end of the microprocessor, and a multi-way switch connected to an input end of the analog-to-digital converter, wherein each input end of the multi-way switch is connected with one charge detection unit, input ends of all the charge detection units are connected with an output end of the signal generator, and LEDs in all the projection areas on the circuit board are driven by one port of the microprocessor respectively.
A touch control light band display method based on a sliding touch control strip comprises the following steps: arranging a plurality of light-transmitting conductive induction sheets on the upper surface of the transparent framework at intervals, connecting each light-transmitting conductive induction sheet with a corresponding charge detection unit on the circuit board through a pin to form an induction key, and welding at least one LED in the lower cavity of the transparent framework and the shadow area corresponding to each light-transmitting conductive induction sheet on the circuit board to form a sliding touch strip; when a finger slides and touches or touches a point through a medium layer on the sliding touch strip, the light-transmitting conductive induction sheet which is sensed by sliding touch or point touch is detected by the corresponding charge detection unit, and then is identified and processed by the identification control module, so that a set program is used for driving the corresponding LED to emit light to form a light band, and data is transmitted to the host through the communication interface.
The optical band display type sliding touch strip can sense the touch of a human finger through a transparent medium layer or a semitransparent medium layer, and can input a sensed touch position signal to a main controller in a quick point touch and sliding touch mode; meanwhile, the induction input operation is accompanied by the display of a strip-shaped light band, and no matter the induction input operation is a point touch operation or a sliding touch operation, the induction input operation can form the light band which penetrates out of the transparent medium layer from the start position to the stop position.
The optical band display type sliding touch control strip is a strip-shaped component with a plurality of induction key structures, combines a transparent framework with a plurality of light-transmitting conductive induction sheets with a circuit board part into a whole, can be installed at the window of an operation surface shell of a small household appliance product to be used as an input component, is convenient to install and maintain, and can meet the design requirements of the small household appliance product.
Drawings
FIG. 1 is a schematic structural diagram of a sliding touch bar according to an embodiment of the present invention;
FIG. 2 is an enlarged, fragmentary view of the left portion of the embodiment of FIG. 1;
FIG. 3 is a schematic diagram of the distribution of a portion of the projection area on the circuit board of the embodiment of FIG. 1 and the layout of LEDs within the projection area;
FIG. 4 is an electrical schematic block diagram of the embodiment of FIG. 1;
FIG. 5 is a diagram of an example of the charge detection unit in FIG. 4;
FIG. 6 is a schematic view of the sliding touch strip of the present invention in combination with a transparent dielectric layer.
Detailed Description
The following detailed description is made with reference to the accompanying drawings. Referring to fig. 1 to 3, the embodiment of the optical tape display type sliding touch strip mainly includes: the circuit board 1 which is loaded with an identification control module, a charge detection unit and the like, a transparent framework 2 with a lower cavity 23, and a plurality of light-transmitting conductive induction sheets 21 which are attached to the upper surface of the transparent framework 2 at intervals. The transparent conductive sensing sheets 21 are arranged transversely, each transparent conductive sensing sheet 21 is connected with a corresponding charge detection unit on the circuit board 1 through a pin 22 to form a sensing key, two LEDs 11 are welded in the lower cavity 23 of the transparent framework 2 and the imaging area 10 on the circuit board 1 corresponding to each transparent conductive sensing sheet 21, and the two LEDs 11 are correspondingly configured with the charge detection units and the transparent conductive sensing sheets 21.
The transparent conductive induction sheets 21 on the upper surface of the transparent framework 2 can be transparent conductive film sheets, transparent conductive coatings, metal sheets with light holes, transparent conductive wire woven meshes, transparent conductive plastic films and the like, and the shapes of the transparent conductive induction sheets can be circular, rectangular or irregular. When the sensing sheet 21 is a metal sheet, the metal sheet is partially provided with a light-transmitting hole corresponding to the lower LED 11, so that light can be emitted from the front surface of the transparent framework 2; pins 22 can extend downwards from two sides of the metal sheet for welding with the circuit board 1, realizing the electric connection with the corresponding charge detection unit on the circuit board 1, and fixing the transparent framework 2 and the circuit board 1 into a whole.
The transparent framework 2 with the light-transmitting conductive induction sheet 21 and the circuit board 1 are assembled into an integral component which is arranged at the window of an operation surface shell of a small household appliance, as shown in fig. 6, a transparent dielectric layer or a semitransparent dielectric layer 3 is arranged on the transparent framework 2, a finger electrically touches or slides to touch the corresponding position of the dielectric layer 3 to form an induction capacitor with the light-transmitting conductive induction sheet 21 on the transparent framework 2 below, and a charge detection unit detects a touch position signal. The transparent dielectric layer 3 in fig. 6 is a glass plate, and a ceramic plate, a transparent plastic plate, a translucent plastic plate, or the like may be used.
The circuit parts such as the identification control module refer to the functional block diagrams 4 and 5. The identification control module comprises a microprocessor MCU, a signal generator, an analog-to-digital converter ADC, a multi-way switch, a communication interface, 7 charge detection units and the like. The signal generator is connected with a control end of the MCU, an input end of the MCU is connected with the ADC, an input end of the ADC is connected with the multi-way switch, each input end of the multi-way switch is respectively connected with a charge detection circuit, input ends of all charge detection units receive 100-plus-1000 kHz pulse signals fed by the signal generator, the charge detection units are located on the circuit board 1 and correspond to 7 mapping areas 10, each mapping area is provided with two LEDs, and the LEDs are respectively driven by one port of the MCU.
The identification control module preferably adopts an SoC chip which is internally provided with an MCU, an ADC and a signal generator which can provide 100-plus-1000 kHz pulse signals. The 100-plus-1000 kHz pulse signal generated by the signal generator can be a rectangular wave or a sine wave, and can also be directly generated by the signal generator in the MCU.
The charge detection unit in fig. 5 includes a capacitor C1 and a capacitor C2 connected in series, a free end of the capacitor C2 is connected to an output terminal of the charge detection circuit through a rectifier diode D2, a load resistor R2 is connected between the output terminal and the ground, an anode of the rectifier diode D2 is connected to the diode D1 in a reverse direction to the ground, a common end of the capacitor C1 and the capacitor C2 is connected to the ground through a resistor R1, and a common end of the two capacitors C1 and C2 is simultaneously connected to a corresponding one of the transparent conductive sensor pads 21.
The high-frequency signal generated by the signal generator is rectified by a rectifier diode D2 through capacitors C1 and C2, a direct-current level signal (namely the output voltage of the charge detection unit) is generated at two ends of a load resistor R2, and the direct-current level signal is converted into digital quantity by the ADC through a multi-way switch and is input into the MCU. Normally, the charge quantity of the high-frequency signal generated by the signal generator flowing through the capacitors C1 and C2 is constant, and the level signal rectified by the rectifying diode D2 is also constant; referring to fig. 6, when a finger 4 of a human body touches the transparent dielectric layer 3 on the transparent conductive sensing sheet 21, the finger 4 and the surface of the sensing sheet 21 form an inductive capacitor for discharging charges, and when a high-frequency signal sent by a signal generator passes through capacitors C1 and C2, a part of charges pass through the inductive capacitor formed by the sensing sheet and the finger 4 of the human body and are transferred to the ground through the human body, so that a level signal rectified by D2 is reduced. The MCU detects and analyzes the level signal variation before and after the human finger touch induction, judges whether the human finger is close to the induction sheet, transmits the judgment to the host through the communication interface, and drives the corresponding LED to emit light to form a light band according to a set program.
Because the sliding touch strip is a strip-shaped integrated component, the transparent framework with the plurality of light-transmitting conductive induction sheets and the circuit board part are combined into a whole to form an induction key row with a plurality of LEDs, the MCU can detect the position of a finger on the induction key row at high speed and light the LED lamps corresponding to the induction keys, and when the finger slides and touches or touches a point on the dielectric layer 3 on the induction key row, the MCU can control the set LEDs to light in sequence to form a light band.
According to the invention, the invention further provides a touch control light band display method based on the sliding touch control strip. Referring to fig. 6, the optical tape display method takes the following steps: a plurality of light-transmitting conductive induction sheets 21 are arranged on the upper surface of the transparent framework 2 at intervals, each light-transmitting conductive induction sheet is connected with a corresponding charge detection unit on the circuit board 1 through a pin to form an induction key, and 1-2 LEDs 11 are welded in the lower cavity 23 of the transparent framework 2 and the projection area 10 corresponding to each light-transmitting conductive induction sheet 21 on the circuit board to form a sliding touch strip; when a finger 4 slides and touches or touches a point through the medium layer 3 on the sliding touch strip, the light-transmitting conductive induction sheet which is sensed by sliding touch or point touch is detected by the corresponding charge detection unit, and then is identified and processed by the identification control module, so that a set program is used for driving the corresponding LED to emit light to form a light band, and data is transmitted to the host through the communication interface.
When a finger slides and touches from one end of the sliding touch strip to the other end of the sliding touch strip in the forward direction through the medium layer 3, the LEDs under the corresponding induction keys which are induced are sequentially lightened one by one, and the LED is extended along with the sliding of the finger to form a light band; when the finger slides and touches reversely, the LEDs which are lighted originally are sequentially extinguished one by one, and the light band is shortened along with the sliding of the finger.
When a finger 4 touches a certain induction key position from the starting end to the tail end of the sliding touch strip in a forward point touch mode through the medium layer 3, all corresponding LEDs from the induction key at the starting end to the induction key are lightened one by one to form a light band of the induction key at the starting end; when the finger touches the starting end, the LEDs behind the point-touched induction key are sequentially turned off, and the light band is shortened along with the movement of the finger until the starting end.
The light band display type sliding touch control strip can be configured on small household appliances to be used as an input component, such as an induction cooker, an electric heater and the like. If the sliding touch control strip is arranged at the window of the operation panel shell of the induction cooker, the sliding touch control induction cooker with the light band display function can be formed.
Claims (7)
1. A light band display type sliding touch strip is characterized by comprising: the circuit board is provided with an identification control module, the transparent framework is provided with a lower cavity, and the plurality of light-transmitting conductive induction sheets are attached to the upper surface of the transparent framework at intervals, the light-transmitting conductive induction sheets are arranged in a transverse or row mode, each light-transmitting conductive induction sheet is connected with a corresponding charge detection unit on the circuit board through a pin to form an induction key, at least one LED is welded in the lower cavity of the transparent framework and in an image area corresponding to each light-transmitting conductive induction sheet on the circuit board, and the identification control module is used for identifying that the light-transmitting conductive induction sheets are touched in a sliding mode or in a point touch mode and driving the corresponding LEDs to emit light to form a light band; wherein,
the charge detection unit comprises a first capacitor and a second capacitor which are connected in series, the free end of the second capacitor is connected with an output terminal through a rectifying diode, a load resistor is connected between the output terminal and the ground, the positive electrode of the rectifying diode is connected with the other diode in a reverse direction to the ground, the common end of the two capacitors is grounded through a resistor, and the common end of the two capacitors is simultaneously connected to a corresponding light-transmitting conductive induction sheet in the light-transmitting conductive induction sheets;
the light-transmitting conductive induction sheet is a transparent conductive film sheet, a transparent conductive coating or a conductive wire knitted mesh sheet.
2. The sliding touch bar of claim 1, wherein: the light-transmitting conductive induction sheet is circular, rectangular or irregular.
3. The sliding touch bar of claim 1, wherein: the identification control module comprises a microprocessor, a signal generator connected to a control end of the microprocessor, an analog-to-digital converter connected with an input end of the microprocessor, and a multi-way switch connected to an input end of the analog-to-digital converter, wherein each input end of the multi-way switch is connected with one charge detection unit, input ends of all the charge detection units are connected with an output end of the signal generator, and LEDs in all the projection areas on the circuit board are driven by one port of the microprocessor respectively.
4. A sliding touch bar according to claim 1 or 3, wherein: when a finger of a human body touches the transparent medium layer on the transparent conductive induction sheet, the finger and the surface of the induction sheet form an induction capacitor which is connected with the ground through the human body and discharges charges.
5. A touch control light band display method based on a sliding touch control strip is characterized by comprising the following steps: arranging a plurality of light-transmitting conductive induction sheets on the upper surface of the transparent framework at intervals, connecting each light-transmitting conductive induction sheet with a corresponding charge detection unit on the circuit board through a pin to form an induction key, and welding at least one LED in the lower cavity of the transparent framework and the shadow area corresponding to each light-transmitting conductive induction sheet on the circuit board to form a sliding touch strip; when a finger slides and touches or touches a point through a medium layer on the sliding touch strip, the light-transmitting conductive induction sheet which is subjected to sliding touch or point touch induction is detected by the corresponding charge detection unit, and then is subjected to identification processing by the identification control module, so that a set program is used for driving the corresponding LED to emit light to form a light band, and data is transmitted to the host; wherein,
the charge detection unit comprises a first capacitor and a second capacitor which are connected in series, the free end of the second capacitor is connected with an output terminal through a rectifying diode, a load resistor is connected between the output terminal and the ground, the positive electrode of the rectifying diode is connected with the other diode in a reverse direction to the ground, the common end of the two capacitors is grounded through a resistor, and the common end of the two capacitors is simultaneously connected to a corresponding light-transmitting conductive induction sheet in the light-transmitting conductive induction sheets;
the light-transmitting conductive induction sheet is a transparent conductive film sheet, a transparent conductive coating or a conductive wire knitted mesh sheet.
6. The touch band display method of claim 5, wherein: when a finger slides and touches from one end of the sliding touch strip to the other end of the sliding touch strip in the forward direction through the medium layer, the LEDs under the corresponding induction keys which are induced are sequentially lightened, and the finger slides and extends to form a light band; when the finger slides and touches reversely, the LEDs which are lighted originally are sequentially extinguished one by one, and the light band is shortened along with the sliding of the finger.
7. The touch band display method of claim 5 or 6, wherein: when a finger touches a certain induction key position from the starting end to the tail end of the sliding touch strip in a forward point touch mode through the medium layer, all corresponding LEDs from the induction key at the starting end to the induction key are lightened one by one to form a light band from the induction key at the starting end to the induction key; when the finger touches the initial end direction point, the LEDs behind the point-touched induction key are sequentially turned off, and the light band is shortened along with the movement of the finger.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010611782 CN102385451B (en) | 2010-12-29 | 2010-12-29 | Luminous band display type sliding touch bar and display method of touch luminous band |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010611782 CN102385451B (en) | 2010-12-29 | 2010-12-29 | Luminous band display type sliding touch bar and display method of touch luminous band |
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| CN102385451A CN102385451A (en) | 2012-03-21 |
| CN102385451B true CN102385451B (en) | 2013-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104156132B (en) * | 2014-08-26 | 2017-07-11 | 深圳市通普科技有限公司 | Capacitive induction interaction contactor control device based on LED screen |
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| CN103472948A (en) * | 2013-09-03 | 2013-12-25 | 小米科技有限责任公司 | Method and device for remote-control processing of touch screen terminal and terminal |
| CN103490760A (en) * | 2013-10-18 | 2014-01-01 | 董乐山 | Capacitive touch switch operated in slide way |
| DE102016113162A1 (en) * | 2015-07-28 | 2017-02-02 | Schott Ag | Control panel for a household appliance with at least one user interface, home appliance and method for producing the control panel with user interface |
| CN106852635A (en) * | 2015-12-08 | 2017-06-16 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking pot and its control method |
| KR20190057020A (en) * | 2016-02-18 | 2019-05-27 | 다렌 에릭 벤그로프 | User interface for cooking system |
| CN105570839A (en) * | 2016-02-26 | 2016-05-11 | 深圳市赛音电子有限公司 | Touch control lamp |
| CN107896355A (en) * | 2017-11-13 | 2018-04-10 | 北京小米移动软件有限公司 | The control method and device of AI audio amplifiers |
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| CN2831001Y (en) * | 2005-10-20 | 2006-10-25 | 广东科龙电器股份有限公司 | Refrigerator with luminous displaying key |
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