CN103150031A - Transparent membrane keyboard - Google Patents
Transparent membrane keyboard Download PDFInfo
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- CN103150031A CN103150031A CN2013101160145A CN201310116014A CN103150031A CN 103150031 A CN103150031 A CN 103150031A CN 2013101160145 A CN2013101160145 A CN 2013101160145A CN 201310116014 A CN201310116014 A CN 201310116014A CN 103150031 A CN103150031 A CN 103150031A
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- transparent conductive
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Abstract
The invention discloses a transparent membrane keyboard which can be integrated in a screen. The transparent membrane keyboard comprises a transparent static elastic membrane, a transparent parallel-plate capacitor array and a switch array, wherein the transparent parallel-plate capacitor array is located under the transparent static elastic membrane and is connected with the switch array which is provided with a programmable power supply; and each capacitor in the transparent parallel-plate capacitor array has charges of different polarities and generates different electrostatic forces to the transparent static elastic membrane, so that the transparent static elastic membrane is correspondingly deformed to form a keyboard array. When keyboard input is needed, the transparent elastic membrane is deformed by the electrostatic forces so as to provide a specific hand handle of traditional keyboards; and when the keyboard input is not needed, the device is adsorbed by a reversed electrostatic force to form a transparent membrane which is integrated in a display. Meanwhile, the transparent membrane keyboard has the hand handle of the traditional keyboards and has the characteristic of saving space as soft keyboards.
Description
Technical field
What the present invention relates to is the device in a kind of application electric technology field, specifically a kind of membrane keypad of transparent be integrated in screen.
Background technology
Along with the high speed development of the communication technology, people have higher requirement for miniaturization and the lighting of electronic product.Due to the size of staff, the miniaturization of keyboard is difficulty comparatively, so that in all consumer electronics products, keyboard has still occupied large stretch of area of product surface, makes the miniaturization of electronic product and integrated being difficult to further develop.Soft keyboard technology is formed in the electronic product screen with the keyboard input set, need keyboard when input to show that on screen soft keyboard realizes the keyboard input with touch screen technology the user, normal other pictures that show when not needing to input, thereby saved in appearance the surface area of electronic product by keyboard grabbing, made electronic product reach further miniaturization and lighting.Yet soft keyboard can not satisfy the user to the requirement of keyboard input, due to feel, make the user when using soft keyboard, the quick input that reach conventional keyboard is difficult to realize, size due to a few users finger is larger simultaneously, and produces larger error rate for input.Therefore, thereby a kind of both had soft keyboard and can be integrated in screen and subtract undersized characteristics, thereby the feel that has again conventional keyboard simultaneously can be of great significance with the keyboard tool that low error rate be carried out input at a high speed.
Find through the retrieval to prior art, the open day 2011-11-09 of Chinese patent literature 102236463A discloses a kind of haptic apparatus, comprising: substrate; And the composite piezoelectric unit that covers the substantially transparent of described substrate, described piezoelectric unit comprises: the sensor piezoelectric layer, it is configured to generate first signal when described sensor piezoelectric layer deformation, and the actuator piezoelectric layer, it is configured to provide haptic effect when the secondary signal that receives based on first signal.But the haptic effect that this technology provides for the user is vibration mode, need long duration of contact, and sense of touch is not strong, can not satisfy the requirement of quick input.
Chinese patent literature CN102736787 is day 2012-10-17 openly, discloses a kind of auxiliary input device of contact surface plate, and this technology comprises: an external member body have a top, a bottom and a running-on, and this top is transparence and has elasticity; A plurality of lug bosses are laid in this top; And a plurality of electrostatic induction unit, correspond respectively to these lug bosses.Wherein:, aforesaid contact surface plate electronic installation is to be inserted in the auxiliary input device of contact surface plate of the present invention by the running-on of external member body.And when user's wish was passed through the auxiliary input device typing character of contact surface plate of the present invention, the top of aforesaid input external member body was covered in one of this contact surface plate electronic installation and touches on the viewing area.But this technology can not be integrated in when not using on screen, can only be as the annex of an Interim use, the form of keyboard is fixed simultaneously, can not be by programmed control, can only with a fixing soft keyboard collocation use.
Summary of the invention
The present invention is directed to the prior art above shortcomings, provide a kind of thin transparent membranaceous keyboard, when this device is inputted at the needs keyboard, use electrostatic force make the transparent elastic film distortion and provide conventional keyboard peculiar feel, and use reverse electrostatic force absorption and make device become the transparent film of a slice to be integrated in display when not needing the keyboard input.Have simultaneously the feel of conventional keyboard and equally have space-saving characteristics with soft keyboard.
The present invention is achieved by the following technical solutions, the present invention includes: transparent static elastic film, transparent parallel capacitor array and switch arrays, wherein: the transparent parallel capacitor array is positioned at the below of transparent static elastic film and is connected with power supply by programme controlled switch arrays; With the electric charge of opposed polarity and to the different electrostatic force of transparent static elastic film generation, make transparent static elastic film produce corresponding deformation and form keyboard array on each electric capacity in the transparent parallel capacitor array.
Described transparent static elastic film is the multi-layer transparent elastic construction, comprise: middle charged layer and the insulation course of both sides, wherein: charged layer is the elastic film of oolemma electrostatic charge, form vacuum at the middle part after will be respectively bonding with the edge of the dielectric layers of like charges, charged layer is pressed in the middle of insulation course.
Described charged layer adopts but is not limited to by high pressure electrostatic painting some electronegative polyester resin particle between dielectric layers; Described insulation course adopts but is not limited to the elasticity transparent silica gel and makes.
Described transparent parallel capacitor array comprises: transparent dielectric layer, upper transparent conductive film array and lower transparent conductive film array and upper protective seam and lower protective layer, wherein: upper transparent conductive film array is respectively that two prescriptions are to vertical strip-shaped conductive film with lower transparent conductive film array, wherein a pair of mutual intersection over against the strip-shaped conductive film with consist of a parallel plate capacitor unit between wherein transparent medium, upper transparent conductive film array and lower transparent conductive film array form the capacitor array on a plane; Upper transparent conductive film array is connected with the different potentials end of power supply by switch arrays respectively with lower transparent conductive film array, and upper protective seam and lower protective layer are positioned at the both sides of transparent parallel capacitor array, for the protection of the transparent parallel capacitor array.
Form vacuum after the edge of described upper protective seam and lower protective layer is bonding at the middle part, transparent dielectric layer and strip-shaped conductive film are pressed in the middle of upper protective seam and lower protective layer.
Described transparent dielectric layer adopts but is not limited to blunt calcium titanate and makes; Described upper transparent conductive film array and lower transparent conductive film array all adopt but be not limited to tin indium oxide to be made; Described upper protective seam and lower protective layer all adopt but are not limited to the elasticity transparent silica gel and make.
Described switch arrays comprise: two groups of linear analog switch array that are connected with control circuit with power supply, these switch arrays are connected with transparent conductive film with the form of two group two different potentials ends with power supply, control duty and the operating voltage of a transparent conductive film by the on off operating mode of two switches.
The built-in two groups of serial-parallel conversion circuits of described control circuit and sequential circuit are converted to multi-way control signals to control linear analog switch array by the serial data with input.
Described duty and operating voltage refer to: noble potential, electronegative potential and open circuit, wherein: when orthogonal a pair of transparent conductive film is in different potentials, potential difference (PD) will be charged to the capacitor cell that this a pair of transparent conductive film forms, when this a pair of transparent conductive film all is in off-position, capacitor cell wherein will keep original charged state and with the electric charge of corresponding polarity.
Principle of work of the present invention is: when not needing keyboard key fashionable, charge generation electrostatic attraction on parallel plate capacitor and transparent static elastic film, the transparent membrane that makes product become a multilayer depends on the screen surface of electronic product, when the needs keyboard key fashionable, the electrostatic force of the charge generation different directions on the parallel plate capacitor of diverse location and transparent static elastic film, make transparent static elastic film produce corresponding elastic deformation, the elastic handfeel when producing the conventional keyboard use.
Technique effect
Compared with prior art, the present invention is the different form of conversion as required, when keying in, can make the user obtain the feel of conventional keyboard, realize the key entry that high speed is errorless, simultaneously, can be arranged in difform keyboard by each unit of programmed control, satisfy multiple user's request.When not using, become a transparent membrane that depends on screen.Make the user save the space of conventional keyboard when obtaining the experience of conventional keyboard.
Description of drawings
Fig. 1 is the cross sectional representation of use state of the present invention.
Fig. 2 is the cross sectional representation of adsorbed state of the present invention.
Fig. 3 is the cross sectional representation of transparent static elastic film of the present invention.
Fig. 4 is the structural representation of transparent parallel capacitor array of the present invention.
Fig. 5 is edge of the present invention laminating flat schematic diagram.
Fig. 6 is the connection diagram of switch arrays of the present invention and capacitor board.
The floor map of Fig. 7 different key shape that to be the present invention be combined under different pieces of information is controlled.
Fig. 8 is the embodiment principle schematic.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, the present embodiment is implemented under take technical solution of the present invention as prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As depicted in figs. 1 and 2, the present embodiment comprises:
Transparent dielectric layer 6 in transparent parallel capacitor array b, upper transparent conductive film array 5 and lower transparent conductive film array 7, upper protective seam 4 and lower protective layer 8;
The first switch arrays 9, second switch array 10 and control circuit 11 in switch arrays c, wherein:
As shown in Figure 3, described transparent static elastic film a comprises: upper insulation course 1, lower insulation course 3 and charged layer 2, and wherein: charged layer 2 is with a large amount of electrostatic charges, and upper insulation course 1 and lower insulation course 3 and charged layer 2 are glued together; The size and dimension of upper insulation course 1, charged layer 2 and lower insulation course 3 is identical with the profile of whole keyboard, is 6 * 10cm
2(not containing the edge stick portion).
Described upper insulation course 1 and lower insulation course 3 are the elasticity transparent silica gel, and wherein: the thickness of insulation course 1 is 0.2mm, and the thickness of insulation course 2 is 0.1mm.
Described charged layer 2 is that its electric density is 5 * 10 by the electronegative polyester resin particle of high pressure electrostatic painting in upper insulation course 1 and lower insulation course 3
-9C/cm
2
The gummed mode of upper insulation course 1, lower insulation course 3 and charged layer 2 as shown in Figure 3, the bonding rear formation vacuum in the edge of upper insulation course 1 and lower insulation course 3 is pressed on charged layer 2 in the middle of upper insulation course 1 and lower insulation course 3.
The edge of described transparent static elastic film a and transparent parallel capacitor array b is as shown in Figure 5 bonding, and in figure, d is partly stick portion, and alternate with the d part is to keep pore e.
described transparent parallel capacitor array b comprises: transparent dielectric layer 6, upper transparent conductive film array 5 and lower transparent conductive film array 7 and upper protective seam 4 and lower protective layer 8, wherein: upper transparent conductive film array 5 is connected with second switch array 10 with the first switch arrays 9 respectively with lower transparent conductive film array 7, upper protective seam 4 and lower protective layer 8 are positioned at the both sides of transparent parallel capacitor array b, for the protection of transparent parallel capacitor array b, transparent dielectric layer 6, upper transparent conductive film array 5, lower transparent conductive film array 7, upper protective seam 4, between lower protective layer 8 all by bonding connection.
Described upper protective seam 4 and lower protective layer 8 are made for the elasticity transparent silica gel, and its thickness is 0.1mm, and size and dimension is identical with the profile of whole keyboard, are 6 * 10cm
2(not containing the edge stick portion).The bonding rear formation vacuum in the edge of upper protective seam 4 and lower protective layer 8 is with transparent dielectric layer 6 and upper transparent conductive film array 5 and lower transparent conductive film array 7 is pressed on upper protective seam 4 and lower protective layer 8 is middle.
The material of described transparent dielectric layer 6 adopts but is not limited to blunt calcium titanate, and size and dimension is identical with the profile of whole keyboard, is 6 * 10cm
2, thickness is 2 μ m.
As shown in Figure 4, described upper transparent conductive film array 5 and lower transparent conductive film array 7 are to intersect the vertical indium oxide coating that invests transparent dielectric layer 6 outsides, and wherein: the planar dimension of upper transparent conductive film array 5 is 1.4 * 100mm
2, having 40, the space is 0.1mm, is arranged in 6 * 10cm
2The plane, the planar dimension of lower transparent conductive film array 7 is 0.9 * 60mm
2, having 100, the space is 0.1mm, is arranged in 6 * 10cm
2The plane; 40 * 100 parallel plate capacitors are arranged in 6 * 10cm altogether
2The plane consist of transparent parallel capacitor array b.Can and produce different electrostatic force to upper insulation course 1, charged layer 2 and lower insulation course 3 with the electric charge of opposed polarity on each transparent parallel electric capacity, make insulation course 1, charged layer 2 and lower insulation course 3 produce corresponding deformation and form keyboard array.
As shown in Figure 6, described the first switch arrays 9, second switch array 10 and control circuit 11 are connected with lower transparent conductive film array 7 with upper transparent conductive film array 5 respectively, are used for controlling its on off operating mode and potential difference (PD).
As shown in Figure 8, described the first switch arrays 9 and second switch array 10 are respectively 80 * 1 and 200 * 1 linear field effect transistor analog switch array, power supply with the form general+12V of two group and-12V is connected with a transparent conductive film, and the state by pair of switches makes a transparent conductive film be in high and low current potential or open-circuit condition.
Described control circuit 11 is two groups of serial-parallel conversion circuits and sequential circuit, and the serial data of controlling the software storage is converted to 280 tunnel control signal to control 280 field effect transistor analog switches on the first switch arrays 9 and second switch array 10.
The charging order of this device is, first make all transparent parallel capacitor array b chargings make all transparent parallel capacitor array b and upper insulation course 1, charged layer 2 and lower insulation course 3 produce repulsion in a charging sequential, by pore air amount afterwale, then make the anti-phase charging of transparent parallel capacitor array b of corresponding units and with the relevant position adhesive of upper insulation course 1, charged layer 2 and lower insulation course 3 by 40 charging sequential.Because the off state of field effect transistor analog switch is not open-circuit condition completely, needing repeatedly to repeat above order to keep the electric weight on transparent parallel capacitor array b after using certain hour.Because the capacity of each electric capacity is minimum, so this process time is minimum, does not affect normal use.
As shown in Fig. 7 a and Fig. 7 b, be the capacitor array schematic diagram through a button of composition of formation after certain sequential charging, in figure, grey f produces the capacitor cell of repulsion with transparent static elastic film a, white g produces the capacitor cell of suction with transparent static elastic film a, as shown in the figure, Fig. 7 a will present a square button, and Fig. 7 b will present the button of a sub-circular.
The input signal collection of this device realizes by the touch-screen that depends on, if need to use separately the present invention, also can add sense of touch capacitor array or the realization of sense of touch resistance of one deck after transparent parallel capacitor array b again, and its composition is similar to the input structure of touch-screen.
This device has been realized a kind of membrane keypad of transparent be integrated in screen, when this device is inputted at the needs keyboard, use electrostatic force make the transparent elastic film distortion and provide conventional keyboard peculiar feel, and use reverse electrostatic force absorption and make device become the transparent film of a slice to be integrated in display when not needing the keyboard input.Have simultaneously the feel of conventional keyboard and equally have space-saving characteristics with soft keyboard.
Claims (9)
1. the membrane keypad of transparent a be integrated in screen, it is characterized in that, transparent static elastic film, transparent parallel capacitor array and switch arrays, wherein: the transparent parallel capacitor array is positioned at the below of transparent static elastic film and is connected with switch arrays with control circuit; With the electric charge of opposed polarity and to the different electrostatic force of transparent static elastic film generation, make transparent static elastic film produce corresponding deformation and form keyboard array on each electric capacity in the transparent parallel capacitor array.
2. keyboard according to claim 1, it is characterized in that, described transparent static elastic film is the multi-layer transparent elastic construction, comprise: middle charged layer and the insulation course of both sides, wherein: charged layer is the elastic film of oolemma electrostatic charge, form vacuum at the middle part after will be respectively bonding with the edge of the dielectric layers of like charges, charged layer is pressed in the middle of insulation course.
3. keyboard according to claim 2, is characterized in that, described charged layer is the some electronegative polyester resin particle between dielectric layers by high pressure electrostatic painting; Described insulation course is that the elasticity transparent silica gel is made.
4. keyboard according to claim 1, it is characterized in that, described transparent parallel capacitor array comprises: transparent dielectric layer, upper transparent conductive film array and lower transparent conductive film array and upper protective seam and lower protective layer, wherein: upper transparent conductive film array is respectively that two prescriptions are to vertical strip-shaped conductive film with lower transparent conductive film array, wherein a pair of mutual intersection over against the strip-shaped conductive film with consist of a parallel plate capacitor unit between wherein transparent medium, upper transparent conductive film array and lower transparent conductive film array form the capacitor array on a plane, upper transparent conductive film array is connected by the different potentials end of switch arrays with control circuit and power supply respectively with lower transparent conductive film array, and upper protective seam and lower protective layer are positioned at the both sides of transparent parallel capacitor array.
5. keyboard according to claim 4, is characterized in that, forms vacuum after the edge of described upper protective seam and lower protective layer is bonding at the middle part, and transparent dielectric layer and strip-shaped conductive film are pressed in the middle of upper protective seam and lower protective layer.
6. according to claim 4 or 5 described keyboards, is characterized in that, described transparent dielectric layer is that blunt calcium titanate is made; Described upper transparent conductive film array and lower transparent conductive film array are tin indium oxide and make; Described upper protective seam and lower protective layer are the elasticity transparent silica gel and make.
7. keyboard according to claim 1, it is characterized in that, described switch arrays comprise: two groups of linear analog switch array that are connected with power supply with control circuit, these switch arrays are connected with transparent conductive film with the form of two group two different potentials ends with power supply, control duty and the operating voltage of a transparent conductive film by the on off operating mode of two switches.
8. keyboard according to claim 7, is characterized in that, the built-in two groups of serial-parallel conversion circuits of described control circuit and sequential circuit are converted to multi-way control signals to control linear analog switch array by the data that will prestore.
9. keyboard according to claim 7, it is characterized in that, described duty and operating voltage refer to: noble potential, electronegative potential and open circuit, wherein: when orthogonal a pair of transparent conductive film is in different potentials, potential difference (PD) will be charged to the capacitor cell that this a pair of transparent conductive film forms, when this a pair of transparent conductive film all is in off-position, capacitor cell wherein will keep original charged state and with the electric charge of corresponding polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116014.5A CN103150031B (en) | 2013-04-03 | 2013-04-03 | Transparent membrane keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310116014.5A CN103150031B (en) | 2013-04-03 | 2013-04-03 | Transparent membrane keyboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103150031A true CN103150031A (en) | 2013-06-12 |
| CN103150031B CN103150031B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310116014.5A Expired - Fee Related CN103150031B (en) | 2013-04-03 | 2013-04-03 | Transparent membrane keyboard |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447925Y (en) * | 2000-10-25 | 2001-09-12 | 方恒纲 | Improvement of thin-film key structure |
| CN2504685Y (en) * | 2001-09-12 | 2002-08-07 | 方恒纲 | Thin film keyboard structure |
| US20110006787A1 (en) * | 2009-07-09 | 2011-01-13 | Sony Corporation | Dynamic quantity detecting member and dynamic quantity detecting apparatus |
| CN102934069A (en) * | 2010-06-10 | 2013-02-13 | 高通股份有限公司 | Auto-morphing adaptive user interface device and methods |
-
2013
- 2013-04-03 CN CN201310116014.5A patent/CN103150031B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447925Y (en) * | 2000-10-25 | 2001-09-12 | 方恒纲 | Improvement of thin-film key structure |
| CN2504685Y (en) * | 2001-09-12 | 2002-08-07 | 方恒纲 | Thin film keyboard structure |
| US20110006787A1 (en) * | 2009-07-09 | 2011-01-13 | Sony Corporation | Dynamic quantity detecting member and dynamic quantity detecting apparatus |
| CN102934069A (en) * | 2010-06-10 | 2013-02-13 | 高通股份有限公司 | Auto-morphing adaptive user interface device and methods |
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| Publication number | Publication date |
|---|---|
| CN103150031B (en) | 2015-09-16 |
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Granted publication date: 20150916 |