CN101488740A - Touching type press-key and control method thereof - Google Patents
Touching type press-key and control method thereof Download PDFInfo
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- CN101488740A CN101488740A CNA2008100562516A CN200810056251A CN101488740A CN 101488740 A CN101488740 A CN 101488740A CN A2008100562516 A CNA2008100562516 A CN A2008100562516A CN 200810056251 A CN200810056251 A CN 200810056251A CN 101488740 A CN101488740 A CN 101488740A
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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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Abstract
The invention discloses a touch key-press which comprises an upper surface, an indicating lamp, a first electrode, a second electrode and a control module, wherein, the upper surface is made of translucent materials and the inner surface of the upper surface is hollowed into corresponding key-press symbols; the indicating lamp is arranged at a first position below the upper surface; the first electrode is arranged at a second position below the upper surface; the second electrode is arranged at the right lower part of the upper surface; and the control module is connected with the first electrode, the second electrode and the indicating lamp and used for determining a distance change between a user and the touch key-press according to a capacitance value within the preset area sensed by the first electrode, controlling the power-on and the power-off of the indicating lamp according to a preset area that a user reaches and leaves and the light efficiency of the indicating lamp according to the distance change and determining corresponding key-press signals and outputting the key-press signals to a processer according to a capacitance value sensed by the second electrode. The invention can realize that the light efficiency of the indicating lamp of the touch key-press can be regulated in real time according to the distance between a user and the touch key-press and the operation is simple and convenient.
Description
Technical field
The present invention relates to the information feedback technology of electronic equipment, particularly a kind of touch-key and control method thereof.
Background technology
Be typically provided with some function buttons on existing computer, household electrical appliance and the various electronic equipment, carry out various function selecting and adjustment for the user.Initial this function button mostly adopts the mechanical type button, current popular then be touch-key.Touch-key has won engineer and user's favor with the complete advantage such as attractive in appearance of its water proofing property, dust tightness, outward appearance.
Touch-key just can trigger behind its surfacing at user's finger touch usually, and its indicator light also only just can produce the indication light efficiency after touch key-press triggers.In order before user's touch key-press, to provide clearly indication, need make the user can before operation, know the position and the function of each touch-key at the corresponding symbol of the surface printing of touch-key usually to each keypress function to the user.
The shortcoming of this method is: since at the surface printing of touch-key various symbols, make original very complete outward appearance become broken, also influenced the product texture of product simultaneously.
At this problem, existing solution is that the mode that adopts hollow out to play lamp provides the key position indication.Particularly, not at the keytop Printing Marks, but,, below the hollow out symbol, indicator light is installed at the symbol of material inner surface hollow out respective keys with the cladding material of trnaslucent materials as touch-key; When the user did not touch button, indicator light did not work, and therefore just cannot see the symbol of hollow out yet, and indicator light just lights when the user touches touch-key, and light passes the eyes that the hollow out symbol enters the user, and the user has just seen corresponding button.When the user did not contact corresponding touch-key for a long time, indicator light just all extinguished, and at this moment the user just can't see any Printing Marks, and it is very complete that whole button appearances becomes, and presents good product texture.
The weak point of this scheme is: after indicator light all extinguishes, when the user need operate touch key-press once more, must touch wherein touch-key arbitrarily earlier, to activate the touch-key zone, make all button indicator lights all light, the user can clearly be known the accurate position of each button then, next can carry out corresponding button operation.Therefore this scheme has increased user's operation complexity.
Summary of the invention
The objective of the invention is problem at above-mentioned prior art existence, a kind of touch-key and control method thereof are provided, can realize recently the indicator light light efficiency of touch-key being carried out real-time adjustment according to the distance of user distance equipment, thereby can realize carrying out the man-machine interaction of hommization with the user, and easy and simple to handle, make that simultaneously very complete sum is attractive in appearance in whole key area.
According to an aspect of the present invention, provide a kind of touch-key, having comprised: upper surface is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface; Indicator light is located at the primary importance of described upper surface below; First electrode is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing; Second electrode is located under the described upper surface, is used for the capacitance of the described upper surface of sensing; Control module, be connected with described first electrode, described second electrode, described indicator light, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing, according to the user arrive/leave described presumptive area control described indicator light bright/go out, control the light efficiency of described indicator light according to the variable in distance between user and the described touch-key, and determine corresponding push button signalling, and export described push button signalling to processor according to the capacitance of described second electrode institute sensing.
Preferably, in the technique scheme, described first electrode and described second electrode can integrated setting.
Preferably, in the technique scheme, described control module can comprise: the induction range cells, be connected with described first electrode, and be used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing; Touch capacitance sensor, be connected, be used to survey the capacitance on described second electrode with described second electrode; Microcontroller, be connected with described induction range cells, touch capacitance sensor and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between user and the described touch-key changes, and according to judged result control described indicator light bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor is surveyed; And output unit, be connected with described microcontroller, be used for exporting the described push button signalling that described microcontroller is determined to processor.
Preferably, in the technique scheme, described microcontroller can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And brightness control unit, be connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance adjust described indicator light bright/go out or brightness.
Preferably, in the technique scheme, described microcontroller can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And frequency control unit, be connected apart from judging unit and indicator light with described, be used for described adjusting the flicker frequency of described indicator light according to the variation of described distance when changing apart from the described distance of judgment unit judges.
According to a further aspect in the invention, provide a kind of notebook, comprised display screen, keyboard and main frame, be provided with central processing unit in the described main frame, described keyboard is provided with at least one touch-key; Described touch-key comprises: upper surface is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface; Indicator light is located at the primary importance of described upper surface below; First electrode is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing; Second electrode is located under the described upper surface, is used for the capacitance of the described upper surface of sensing; Control module, with described first electrode, described second electrode, described indicator light and described central processing unit connect, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing, according to the user arrive/leave described presumptive area control described indicator light bright/go out, control the light efficiency of described indicator light according to the variable in distance between user and the described touch-key, and determine corresponding push button signalling, and export described push button signalling to described central processing unit according to the capacitance of described second electrode institute sensing.
Preferably, in the technique scheme, described control module can comprise: the induction range cells, be connected with described first electrode, and be used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing; Touch capacitance sensor, be connected, be used to survey the capacitance on described second electrode with described second electrode; Microcontroller, be connected with described induction range cells, touch capacitance sensor and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between user and the described touch-key changes, and according to judged result control described indicator light bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor is surveyed; And output unit, be connected the described push button signalling that is used for described microcontroller is determined with described microcontroller and described central processing unit and export described central processing unit to.
Preferably, in the technique scheme, described microcontroller can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And brightness control unit, be connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance control described indicator light bright/go out or brightness.
According to a further aspect in the invention, provide a kind of control method of touch-key, having comprised: come near the described touch-key of sensing capacitance by first electrode of being located at the panel below near the specific range the described touch-key; By with the upper surface of being located at described touch-key on the indicator light of key symbols below of hollow out and the control module that described first electrode is connected, capacitance according to described first electrode institute sensing, determine the variable in distance between user and the described touch-key, and control the light efficiency of described indicator light according to determined variable in distance.
Preferably, in the technique scheme, also can comprise: the capacitance that comes the described upper surface of sensing by second electrode below the upper surface of being located at described touch-key; Determine corresponding push button signalling by described control module according to the capacitance of described second electrode institute sensing, and export described push button signalling to processor.
Preferably, in the technique scheme, the described step of controlling the light efficiency of described indicator light according to determined variable in distance can specifically comprise: adjust the brightness of described indicator light according to determined variable in distance.
Preferably, in the technique scheme, the described step of controlling the light efficiency of described indicator light according to determined variable in distance also can specifically comprise: the flicker frequency of adjusting described indicator light according to the variation of described distance.
A technical scheme in the technique scheme has following beneficial effect: carry out sensing by the electric capacity near the presumptive area the electrode pair touch-key, then by microcontroller according to electrode senses to capacitance determine variable in distance between user and the touch-key, thereby control according to this variable in distance touch-key hollow out symbol below indicator light bright/go out and light efficiency, thereby can when near the presumptive area the user enters described touch-key, light indicator light, and to the user provide and user and indicator light between the corresponding light efficiency of distance, for example when entering described presumptive area, the user lights indicator light, along with the user near and light efficiency such as brighten gradually, therefore can bring clear and definite use feedback and use impression intuitively to the user, strengthen the personalized function of product.
Simultaneously, owing to the variable in distance that can automatically determine by electrode and control module between user and the touch-key, therefore before lighting, the touch-key indicator light do not need user elder generation touch key-press, but adjust the indicator light light efficiency automatically, therefore simplified user's operation, it is more convenient to make the user operate.
In addition, at user finger during away from the touch-key zone, control module can be controlled indicator light according to determined distance automatically and extinguishes, and does not show the hollow out symbol, thereby makes the keypad outward appearance complete attractive in appearance.
Description of drawings
Fig. 1 is the structural representation of the embodiment one of touch-key according to an aspect of the present invention;
Fig. 2 is that the position of first electrode, second electrode and indicator light among the embodiment one of touch-key according to an aspect of the present invention concerns schematic diagram;
Fig. 3 is the light efficiency schematic diagram in the touch-key zone among the embodiment one of touch-key according to an aspect of the present invention;
Fig. 4 is the part-structure schematic diagram of the embodiment two of touch-key according to an aspect of the present invention;
Fig. 5 concerns schematic diagram for what the brightness of user's finger of according to an aspect of the present invention embodiment and distance between the touch key-press zone and indicator light was inversely proportional to;
Fig. 6 is the structural representation of the embodiment three of touch-key according to an aspect of the present invention; And
Fig. 7 is that the position of first electrode, second electrode and indicator light among the embodiment three of touch-key according to an aspect of the present invention concerns schematic diagram.
Embodiment
With reference to the accompanying drawings embodiments of the invention are described in further detail.
Fig. 1 is the structural representation of the embodiment one of touch-key according to an aspect of the present invention.As shown in Figure 1, the touch-key of present embodiment comprises: upper surface 1 is made of trnaslucent materials, in the corresponding key symbols 2 of the inner surface hollow out of upper surface 1; Indicator light 3 is located at the primary importance on the pcb board 6 of described upper surface 1 below; First electrode 4 is located at the second place on the pcb board 6 of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing; Second electrode 5, be located at described upper surface 1 under pcb board 6 on, be used for the capacitance of the described upper surface 1 of sensing; The control module (not shown), be connected with first electrode 4, second electrode 5 and indicator light 3, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of 4 sensings of first electrode, according to determined user arrive/leave described presumptive area control described indicator light 3 bright/go out, and control the light efficiency of described indicator light 3 according to determined variable in distance; And determine corresponding push button signalling, and export described push button signalling to processor (as computer CPU etc.) according to the capacitance of 5 sensings of second electrode.
In the foregoing description, described upper surface 1 is made of trnaslucent materials, and for example this trnaslucent materials can be dark trnaslucent materials.Described indicator light is positioned at the primary importance of described upper surface below, can described primary importance be set flexibly according to the demand of actual scene, so that be located at indicator light on the primary importance can illuminate described hollow out when lighting key symbols.Described first electrode is located at the second place of described upper surface below, can the described second place be set flexibly according to the demand of actual scene, so that described first electrode can sense the capacitance near the described touch-key the presumptive area, so that control module is determined variable in distance between user and the touch-key according to this capacitance.Described second electrode be located at described upper surface under so that the capacitance of the upper surface that described second electrode can the described touch-key of sensing, so that control module is determined corresponding push button signalling according to this capacitance.
According to the foregoing description, when indicator light 3 does not light, because translucent panel and PCB and equipment casing inner tight are fitted, light from outside can not enter into the inner surface of equipment casing inside and translucent panel, so the user almost can't see the hollow out symbol.After indicator light 3 lighted, the light of indicator light 3 passed the eyes that the hollow out symbol enters the user, had the local light luminance of hollow out strong, the local light that does not have a hollow out very a little less than, thereby on panel, present tangible key symbols.According to the indication of the key symbols that shows, the user can select oneself to want the button operated easily, touches with finger, and corresponding push button signalling just can be transferred into main frame.
Fig. 2 is that first electrode 4, second electrode 5 and the position of indicator light 3 on pcb board 6 in the present embodiment concerns schematic diagram.
Fig. 3 shows the two kind light efficiencies of touch-key zone when indicator light extinguishes and light according to present embodiment one.As shown in Figure 3, at user finger during away from the touch-key zone, control module is controlled indicator light according to determined distance automatically and is extinguished, and does not show the hollow out symbol, thereby makes the keypad outward appearance complete attractive in appearance; And when the user points near the described presumptive area that arrives the touch-key, control module is controlled indicator light according to determined distance automatically and is lighted, show the hollow out symbol, thereby can bring clear and definite use feedback and use impression intuitively to the user, simultaneously also need not the user and come displaying symbol, simplified user's operation by touch key-press.
In the present embodiment one, carry out sensing by near the electric capacity the first electrode pair touch-key, then by microcontroller according to first electrode senses to capacitance determine variable in distance between user and the touch-key, thereby control according to this variable in distance touch-key hollow out symbol below indicator light bright/go out and light efficiency, thereby can the user during near indicator light to the user provide and user and indicator light between the corresponding light efficiency of distance, for example when entering presumptive area, the user lights indicator light, along with the user near and control indicator light light efficiency such as brighten gradually, therefore can bring clear and definite use feedback and use impression intuitively to the user, strengthen the personalized function of product.
Simultaneously, owing to the variable in distance that can automatically determine by first electrode and control module between user and the touch-key, therefore before lighting, the touch-key indicator light do not need user elder generation touch key-press, but adjust the indicator light light efficiency automatically, therefore simplified user's operation, it is more convenient to make the user operate.
Fig. 4 is the part-structure schematic diagram of the embodiment two of touch-key according to an aspect of the present invention.As shown in Figure 2, the touch-key of present embodiment two comprises: the upper surface (not shown) is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface; Indicator light 3 is located at the primary importance of described upper surface below; First electrode 4 is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing; Second electrode 5, be located at described upper surface under, be used for the capacitance of the described upper surface of sensing; Induction range cells 61 is connected with described first electrode 4, is used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of 4 sensings of described first electrode; Touch capacitance sensor 62, be connected, be used to survey the capacitance on described second electrode 5 with described second electrode 5; Microcontroller 63, be connected with described induction range cells 61, touch capacitance sensor 62 and indicator light 3, be used for judging according to described induction range cells 61 determined distances whether the distance between user and the described touch-key changes, and according to judged result control described indicator light 3 bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor 62 is surveyed; And output unit 64, be connected with described microcontroller 63, be used for exporting the described push button signalling that described microcontroller 63 is determined to processor.
The concrete assembly of control module further is provided in the present embodiment two, obtain the capacitance of first electrode and second electrode senses respectively by induction range cells 61 and touch capacitance sensor 62, and carry out analysis and judgement according to the capacitance that obtains, thereby according to the light efficiency and the output key signal of judged result control indicator light 3 by microcontroller.
Preferably, in the present embodiment two, microcontroller 63 can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And brightness control unit, be connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance control described indicator light bright/go out or brightness.
Preferably, in the present embodiment two, microcontroller 63 also can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And frequency control unit, be connected apart from judging unit and indicator light with described, be used for described adjusting the flicker frequency of described indicator light according to the variation of described distance when changing apart from the described distance of judgment unit judges.
Be apparent, however, to one skilled in the art that can the control strategy of control module to the light efficiency variation of indicator light be set according to the demand of practical application scene, it all should be within the spirit and scope of the present invention.
For example, Fig. 5 be the brightness of the distance between user finger and the touch key-press zone and indicator light according to an embodiment of the invention be inversely proportional to concern schematic diagram, also be, according to the present invention, light efficiency by control module control indicator light, make when user's finger apart from touch key-press regional than far the time brightness of indicator light darker, the brightness of indicator light is brighter when the user points close together apart from touch key-press.Certainly, also the brightness of indicator light can be arranged to a fixing brightness, when detecting finger near the touch key-press zone, all indicator lights just light with fixing brightness.
Fig. 6 is the structural representation of the embodiment three of touch-key according to an aspect of the present invention.As shown in Figure 6, the touch-key of present embodiment comprises: upper surface 1 is made of trnaslucent materials, in the corresponding key symbols 2 of the inner surface hollow out of upper surface 1; Indicator light 3 is located at the primary importance on the pcb board 6 of described upper surface 1 below; Electrode 7 is located on the pcb board 6 under the described upper surface, is used for the capacitance near the presumptive area the described touch-key of sensing and the capacitance of the described upper surface 1 of sensing; The control module (not shown), be connected with electrode 7 and indicator light 3, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of 7 sensings of electrode, according to determined user arrive/leave described presumptive area control described indicator light 3 bright/go out, and control the light efficiency of described indicator light 3 according to determined variable in distance; And determine corresponding push button signalling, and export described push button signalling to processor (as computer CPU etc.) according to the capacitance of the described upper surface 1 of 7 sensings of electrode.
Fig. 7 is that electrode 7 and the position of indicator light 3 on pcb board 6 in the present embodiment concerns schematic diagram.
In the present embodiment three, carry out sensing by the electric capacity near the presumptive area 7 pairs of touch-keys of electrode, capacitance in the presumptive area that senses according to electrode 7 by microcontroller is determined the variable in distance between user and the touch-key then, thereby control according to this variable in distance touch-key hollow out symbol below indicator light bright/go out and light efficiency, thereby can the user during near indicator light to the user provide and user and indicator light between the corresponding light efficiency of distance, for example when entering presumptive area, the user lights indicator light, along with the user near and control indicator light light efficiency such as brighten gradually, therefore can bring clear and definite use feedback and use impression intuitively to the user, strengthen the personalized function of product.
Simultaneously, in the present embodiment three, the capacitance of the electrode 7 all right described upper surfaces 1 of sensing, that is to say, electrode 7 is actually first electrode among the embodiment one and the second electrode integrated setting, uses an electrode to realize the function of first electrode and second electrode, thereby can simplified structure.
But, because the area of each touch key-press is not very big usually, therefore the area of this induction electrode is not too big just also, the capacitance variations that it can sense is just smaller, that is to say, have only when human body and can sense during apart from this induction electrode close together, at this moment indicator light just can be started working, and key symbols just begins to show.And embodiment once in adopt the mode of two electrodes can overcome the near problem of distance of reaction.Be exclusively used in the distance of sensing human body by an electrode among the embodiment one near panel, because all the area than a touch key-press is big for the area of panel usually, being used for this electrode of detection-sensitive distance so just can be arranged in the bigger scope, and this electrode just can sense capacitance variations in larger scope.For example, when human body is far apart from the distance of this electrode, just can sense and control indicator light work, so just can reach the sensitivity of better effect and Geng Jia according to suitable first electrode that is provided with.
Those skilled in the art are to be understood that; can be according to the demand of practical application scene; select neatly is that described first electrode and second electrode separation ground are provided with; still it integratedly is set to described electrode 7, it all should be within claim of the present invention scope required for protection.
The embodiment of notebook according to an aspect of the present invention comprises display screen, keyboard and main frame, is provided with central processing unit in the described main frame, and described keyboard is provided with at least one touch-key; Described touch-key comprises: upper surface is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface; Indicator light is located at the primary importance of described upper surface below; First electrode is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing; Second electrode is located under the described upper surface, is used for the capacitance of the described upper surface of sensing; Control module, with described first electrode, described second electrode, described indicator light and described central processing unit connect, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing, according to the user arrive/leave described presumptive area control described indicator light bright/go out, control the light efficiency of described indicator light according to the variable in distance between user and the described touch-key, and determine corresponding push button signalling, and export described push button signalling to described central processing unit according to the capacitance of described second electrode institute sensing.
In the foregoing description, described upper surface 1 is made of trnaslucent materials, and for example this trnaslucent materials can be dark trnaslucent materials.Described indicator light is positioned at the primary importance of described upper surface below, can described primary importance be set flexibly according to the demand of actual scene, so that be located at indicator light on the primary importance can illuminate described hollow out when lighting key symbols.Described first electrode is located at the second place of described upper surface below, can the described second place be set flexibly according to the demand of actual scene, so that described first electrode can sense the capacitance near the described touch-key the presumptive area, so that control module is determined variable in distance between user and the touch-key according to this capacitance.Described second electrode be located at described upper surface under so that the capacitance of the upper surface that described second electrode can the described touch-key of sensing, so that control module is determined corresponding push button signalling according to this capacitance.
In the present embodiment, by touch-key according to an aspect of the present invention is set on the keyboard of notebook, this touch-key carries out sensing by the electric capacity near the presumptive area the first electrode pair touch-key, then by microcontroller according to first electrode senses to capacitance determine variable in distance between user and the touch-key, thereby control according to this variable in distance touch-key hollow out symbol below indicator light bright/go out and light efficiency, thereby can the user during near this touch-key to the user provide and user and indicator light between the corresponding light efficiency of distance, for example light indicator light during near the presumptive area the user enters described touch-key, along with the user near and light efficiency such as brighten gradually, therefore can bring clear and definite use feedback and use impression intuitively to the user, strengthen the personalized function of product.Simultaneously, owing to the variable in distance that can automatically determine by first electrode and control module between user and the touch-key, therefore before lighting, the touch-key indicator light do not need user elder generation touch key-press, but adjust the indicator light light efficiency automatically, therefore simplified user's operation, it is more convenient to make the user operate.
For example, when the user uses the notebook that the foregoing description provides, in the time of outside near the user is in the described touch-key that is provided with on the keyboard of this notebook the presumptive area, indicator light in the keyboard of this notebook extinguishes fully, any Printing Marks is can't see in whole touch key-press zone, and outward appearance becomes very complete and presents extraordinary product texture.When the user near the keyboard area of this notebook and when entering described presumptive area, described touch-key lights automatically, moving closer to along with the user then, the indicator light of described touch-key is by secretly lighting gradually to bright ground, each symbol shows gradually, give the user very mysterious sensation, increased the interest of product, make the human-computer interaction interface hommization more that becomes.
Preferably, in the foregoing description, described control module can comprise: the induction range cells, be connected with described first electrode, and be used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing; Touch capacitance sensor, be connected, be used to survey the capacitance on described second electrode with described second electrode; Microcontroller, be connected with described induction range cells, touch capacitance sensor and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between user and the described touch-key changes, and according to judged result control described indicator light bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor is surveyed; And output unit, be connected the described push button signalling that is used for described microcontroller is determined with described microcontroller and described central processing unit and export described central processing unit to.
Preferably, in the foregoing description, described microcontroller can comprise: apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And brightness control unit, be connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance control described indicator light bright/go out or brightness.
The embodiment one of the control method of touch-key according to an aspect of the present invention comprises: come near the described touch-key of sensing capacitance by first electrode of being located at the panel below near the specific range the described touch-key; And by with the upper surface of being located at described touch-key on the indicator light of key symbols below of hollow out and the control module that described first electrode is connected, capacitance according to described first electrode institute sensing, determine the variable in distance between user and the described touch-key, and control the light efficiency of described indicator light according to determined variable in distance.
In the present embodiment, carry out sensing by the electric capacity near the presumptive area the first electrode pair touch-key, then by microcontroller according to first electrode senses to capacitance determine variable in distance between user and the touch-key, thereby control according to this variable in distance touch-key hollow out symbol below indicator light bright/go out and light efficiency, thereby can the user during near touch-key to the user provide and user and indicator light between the corresponding light efficiency of distance, for example light indicator light during near the presumptive area the user enters described touch-key, along with the user near and light efficiency such as brighten gradually, therefore can bring clear and definite use feedback and use impression intuitively to the user, strengthen the personalized function of product.Simultaneously, owing to the variable in distance that can automatically determine by first electrode and control module between user and the touch-key, therefore before lighting, the touch-key indicator light do not need user elder generation touch key-press, but adjust the indicator light light efficiency automatically, therefore simplified user's operation, it is more convenient to make the user operate.
Preferably, also can comprise in the foregoing description: the capacitance that comes the described upper surface of sensing by second electrode below the upper surface of being located at described touch-key; And determine corresponding push button signalling according to the capacitance of described second electrode institute sensing, and export described push button signalling to processor by described control module.
Preferably, in the foregoing description, the described step of controlling the light efficiency of described indicator light according to determined variable in distance can specifically comprise: adjust the brightness of described indicator light according to determined variable in distance.The described step of controlling the light efficiency of described indicator light according to determined variable in distance also can specifically comprise: the flicker frequency of adjusting described indicator light according to the variation of described distance.
The present invention can be applied to various electronic equipments, for example display, various household electrical appliances, computer keyboard and various handheld mobile devices etc.
Although illustrated and illustrated exemplary embodiments more of the present invention, those of ordinary skill in the art is to be understood that, can change these embodiments and do not break away from principle of the present invention and spirit, also not break away from by appended claim and replace institute's restricted portion on an equal basis.
Claims (12)
1, a kind of touch-key is characterized in that, comprising:
Upper surface is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface;
Indicator light is located at the primary importance of described upper surface below;
First electrode is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing;
Second electrode is located under the described upper surface, is used for the capacitance of the described upper surface of sensing;
Control module, be connected with described first electrode, described second electrode, described indicator light, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing, according to the user arrive/leave described presumptive area control described indicator light bright/go out, control the light efficiency of described indicator light according to the variable in distance between user and the described touch-key, and determine corresponding push button signalling, and export described push button signalling to processor according to the capacitance of described second electrode institute sensing.
2, touch-key according to claim 1 is characterized in that, described first electrode and the described second electrode integrated setting.
3, touch-key according to claim 1 is characterized in that, described control module comprises:
The induction range cells is connected with described first electrode, is used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing;
Touch capacitance sensor, be connected, be used to survey the capacitance on described second electrode with described second electrode;
Microcontroller, be connected with described induction range cells, touch capacitance sensor and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between user and the described touch-key changes, and according to judged result control described indicator light bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor is surveyed; And
Output unit is connected the described push button signalling that is used for described microcontroller is determined with described microcontroller and exports processor to.
4, touch-key according to claim 3 is characterized in that, described microcontroller comprises:
Apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And
Brightness control unit is connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance control described indicator light bright/go out or brightness.
5, touch-key according to claim 3 is characterized in that, described microcontroller comprises:
Apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And
Frequency control unit is connected apart from judging unit and indicator light with described, is used for described adjusting the flicker frequency of described indicator light according to the variation of described distance when changing apart from the described distance of judgment unit judges.
6, a kind of notebook comprises display screen, keyboard and main frame, is provided with central processing unit in the described main frame, it is characterized in that:
Described keyboard is provided with at least one touch-key;
Described touch-key comprises:
Upper surface is made of trnaslucent materials, in the corresponding key symbols of inner surface hollow out of described upper surface;
Indicator light is located at the primary importance of described upper surface below;
First electrode is located at the second place of described upper surface below, is used for the capacitance near the presumptive area the described touch-key of sensing;
Second electrode is located under the described upper surface, is used for the capacitance of the described upper surface of sensing;
Control module, with described first electrode, described second electrode, described indicator light and described central processing unit connect, be used for determining variable in distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing, according to the user arrive/leave described presumptive area control described indicator light bright/go out, control the light efficiency of described indicator light according to the variable in distance between user and the described touch-key, and determine corresponding push button signalling, and export described push button signalling to described central processing unit according to the capacitance of described second electrode institute sensing.
7, notebook according to claim 6 is characterized in that, described control module comprises:
The induction range cells is connected with described first electrode, is used for determining distance between user and the described touch-key according to the capacitance in the described presumptive area of described first electrode institute sensing;
Touch capacitance sensor, be connected, be used to survey the capacitance on described second electrode with described second electrode;
Microcontroller, be connected with described induction range cells, touch capacitance sensor and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between user and the described touch-key changes, and according to judged result control described indicator light bright/go out and light efficiency, and determine corresponding push button signalling according to the capacitance that described touch capacitance sensor is surveyed; And
Output unit is connected the described push button signalling that is used for described microcontroller is determined with described microcontroller and described central processing unit and exports described central processing unit to.
8, notebook according to claim 7 is characterized in that, described microcontroller comprises:
Apart from judging unit, be connected with described induction range cells and indicator light, be used for judging according to the determined distance of described induction range cells whether the distance between people and the described indicator light changes; And
Brightness control unit is connected apart from judging unit and indicator light with described, be used for described when changing apart from the described distance of judgment unit judges, according to the variation of described distance control described indicator light bright/go out or brightness.
9, a kind of control method of touch-key is characterized in that, comprising:
Capacitance near the described touch-key of sensing the presumptive area; And
According to the capacitance in the described presumptive area of institute's sensing, determine the variable in distance between user and the described touch-key, according to the user arrive/leave described presumptive area control described indicator light bright/go out and the light efficiency of controlling described indicator light according to the variable in distance between user and the described touch-key.
10, the control method of touch-key according to claim 9 is characterized in that, also comprises:
The capacitance of the described upper surface of sensing; And
Capacitance according to institute's sensing is determined corresponding push button signalling, and exports described push button signalling to processor.
11, the control method of touch-key according to claim 9, it is characterized in that the described step of controlling the light efficiency of described indicator light according to the variable in distance between user and the described touch-key specifically comprises: adjust the brightness of described indicator light according to the variable in distance between user and the described touch-key.
12, the control method of touch-key according to claim 9, it is characterized in that the described step of controlling the light efficiency of described indicator light according to the variable in distance between user and the described touch-key specifically comprises: the flicker frequency of adjusting described indicator light according to the variation of the distance between user and the described touch-key.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100562516A CN101488740B (en) | 2008-01-16 | 2008-01-16 | Touching type press-key and control method thereof |
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| CN2008100562516A CN101488740B (en) | 2008-01-16 | 2008-01-16 | Touching type press-key and control method thereof |
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| CN101488740A true CN101488740A (en) | 2009-07-22 |
| CN101488740B CN101488740B (en) | 2012-11-28 |
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| CN103338033A (en) * | 2013-06-05 | 2013-10-02 | 海芯科技(厦门)有限公司 | Capacitance-type touch keys applied to cell phones and a design method thereof |
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| CN103945048A (en) * | 2013-01-23 | 2014-07-23 | 中兴通讯股份有限公司 | Call adjusting method and device |
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| CN103338033A (en) * | 2013-06-05 | 2013-10-02 | 海芯科技(厦门)有限公司 | Capacitance-type touch keys applied to cell phones and a design method thereof |
| CN104951115A (en) * | 2014-03-28 | 2015-09-30 | 宇龙计算机通信科技(深圳)有限公司 | Touch module and electronic device |
| WO2018149270A1 (en) * | 2017-02-20 | 2018-08-23 | 深圳市华林奇科技有限公司 | Character input method and apparatus, and keyboard |
| CN108931033A (en) * | 2018-08-01 | 2018-12-04 | 宁波奥克斯电气股份有限公司 | A kind of line control machine control method, device and line control machine |
| CN112379609A (en) * | 2020-11-09 | 2021-02-19 | 珠海格力电器股份有限公司 | Display panel having control function, control method of display panel, and storage medium |
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| CN101488740B (en) | 2012-11-28 |
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