CN102346551A - Pressure sensing luminous keyboard - Google Patents
Pressure sensing luminous keyboard Download PDFInfo
- Publication number
- CN102346551A CN102346551A CN201010244550XA CN201010244550A CN102346551A CN 102346551 A CN102346551 A CN 102346551A CN 201010244550X A CN201010244550X A CN 201010244550XA CN 201010244550 A CN201010244550 A CN 201010244550A CN 102346551 A CN102346551 A CN 102346551A
- Authority
- CN
- China
- Prior art keywords
- pressure
- button
- light beam
- contact
- detecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a pressure sensing luminous keyboard, which comprises at least one key, a pressure sensing circuit, a luminous module and a control unit. When users press the keys by first pressure, the pressure sensing circuit senses pressing strength voltage generated due to the first pressure, and the control units determines the strength of the first pressure according to the pressing strength voltage and controls the luminous module according to the strength of the first pressure to generate a first light beam or a second light beam. Different light beams are emitted according to different key pressing strengths of the users to remind the users, and the users can learn that certain instructions are executed by a computer according to the pressed keys, so that the users can be familiar with the operation of the pressure sensing keyboard more quickly.
Description
Technical field
The present invention relates to keyboard, relate in particular to a kind of pressure-sensing formula illuminated keyboard with pressure-sensing function.
Background technology
Computer input unit, for example mouse, keyboard and trace ball etc. are the peripherals that most computers often has.Especially as input characters and the instruction usefulness the indispensable device of the most of especially users of keyboard.
See also Fig. 1, it is the surface structure synoptic diagram of known keyboard.Have a plurality of buttons on the surface of known keyboard 1; These buttons are classified as general key 10, numerical key 11 and function key 12 etc., and these buttons supply users to press with finger and produce corresponding signal to computing machine, make computing machine carry out touched keypress function; For example general key 10 is in order to symbols such as inputting English letters; Numerical key 11 is in order to input digit, and function key 12 is then in order to provide various functions, for example F1 key～F12 key etc.
Next the circuit diagram of known keyboard is described, is seen also Fig. 2, it is the internal circuit synoptic diagram of known keyboard.Keyboard 1 comprises control module 13 and keyboard scan matrix 14; Control module 13 is connected in a plurality of I/O ports (I/O port) through a plurality of pins; Generally speaking; Control module 13 is a microprocessor, and then is well known to those of ordinary skill in the art about all the other detail sections of microprocessor, so do not give unnecessary details.As for 14 in keyboard scan matrix by a plurality of I/O ports (X0～X7 and Y0～YG) intermesh and form, as shown in Figure 2.Keyboard scan matrix 14 is 8 * 16, can that is to say corresponding to keyboard 1 lip-deep a plurality of buttons so can produce 128 contacts, if on the keyboard 1 when 128 buttons are arranged, keyboard 1 inside then must be provided with 24 I/O ports at least.
Evolution along with science and technology; The keyboard 1 that generally has basic function can't satisfy the user, and therefore, each tame keyboard manufacturer is devoted to the research and development of the various functions of key board unit; For example, promptly comprise a kind of pressure-sensing formula keyboard in the prior art with pressure-sensing function.So-called pressure-sensing formula keyboard is set up pressure sensing module below a plurality of buttons; The person of being used with which kind of pressure presses in order to a plurality of button of sensing; And pressure-sensing formula keyboard is preset with preset pressure; When button was pressed with the pressure less than preset pressure, pressure-sensing formula keyboard was then exported first signal, made computing machine carry out first instruction corresponding to first signal.And when button was pressed with the pressure greater than preset pressure, pressure-sensing formula keyboard was then exported secondary signal, made computing machine carry out second instruction corresponding to secondary signal.
Suppose that the user desires input characters in the notepad file; When the user presses a certain button (being assumed to be the A key) in a plurality of buttons with first pressure less than preset pressure, then show a literal of representing with small letter in the notepad file according to user's input.And when the user presses this button (that is A key) in a plurality of buttons with second pressure greater than preset pressure, then show A literal on the notepad file with the capitalization expression according to user's input.
Though the practicality of pressure-sensing formula keyboard is quite high; But for the first time the user of working pressure sensing and detecting type keyboard or the user that is unfamiliar with pressure-sensing formula keyboard can't judge that whether the pressure that puts on the button is greater than this preset pressure; That is to say that these users can't judge that the button that they press will make computing machine carry out which instruction.Therefore, need a kind of pressure-sensing formula keyboard with identification pressure magnitude function.
Summary of the invention
The technical matters that the present invention will solve is that the above-mentioned deficiency to prior art exists provides a kind of pressure-sensing formula illuminated keyboard with identification pressure magnitude function.The technical solution adopted for the present invention to solve the technical problems provides a kind of pressure-sensing formula illuminated keyboard; It comprises base, a plurality of button, film switch circuit, light emitting module and control module; Wherein, These a plurality of buttons are positioned at this base top, and each button with a pressure touched and output signal; This film switch circuit is arranged between this base and this a plurality of buttons, and this film switch circuit comprises the pressure detection circuit, this pressure detection circuit should pressure in order to detecting and produce press intensity voltage; This light emitting module is arranged between this base and this a plurality of buttons, in order to produce first light beam or second light beam; This control module is connected in this film switch circuit and this light emitting module, in order to pressing the intensity that intensity voltage is judged this pressure according to this, and makes this light emitting module this first light beam of output or this second light beam according to the intensity of this pressure.
This film switch circuit comprises the first film circuit board and second film circuit board: wherein, this first film circuit board has a plurality of scanning incoming lines, and each this scanning incoming line has input Low ESR contact; This second film circuit board; Superimposed with this first film circuit board; This second film circuit board has a plurality of scanning output lines; And each this scanning output line has output Low ESR contact, and these a plurality of scanning output lines are in order to forming the keyboard scan matrixes with these a plurality of scanning incoming lines, and each of this keyboard scan matrix should should be exported the Low ESR contact corresponding to this button with each by input Low ESR contact; Wherein when first button of these a plurality of buttons is touched; This first film circuit board contacts with this output Low ESR contact of this second film circuit board, and contacts and conducting corresponding to exporting the Low ESR contact corresponding to first of this first button in the first input Low ESR contact of this first button and these a plurality of scanning output lines in these a plurality of scanning incoming lines.
This light emitting module comprises a plurality of light emitting diodes and LGP; Wherein, these a plurality of light emitting diodes are arranged at the both sides of these a plurality of buttons, in order to export this first light beam and this second light beam; This LGP and this film switch circuit are superimposed, in order to change the ejaculation direction of this first light beam and this second light beam, make this first light beam and this second light beam get into this LGP with first direction, and leave this LGP with second direction; Wherein this first direction is parallel with this film switch circuit, and this first direction is vertical with this second direction.
This film switch circuit is arranged on this LGP.
This LGP is arranged on this film switch circuit, and this LGP has a plurality of perforates.
This pressure detection circuit comprises a plurality of pressure detection elements; And each this pressure detection element comprises detecting high impedance contact and detecting Low ESR contact; When each this button is pressed with first pressure; This detecting high impedance contact contacts with this detecting Low ESR contact, and has first contact area between this detecting high impedance contact and this detecting Low ESR contact, makes this first pressure detection element produce first resistance value; And when each this button is pressed with second pressure greater than this first pressure; This detecting high impedance contact contacts with this detecting Low ESR contact; And have second contact area between this detecting high impedance contact and this detecting Low ESR contact, make each this pressure detection element produce second resistance value greater than this first resistance value greater than this first contact area.
This pressure detection circuit also comprises detecting resistance; This detecting resistance eutral grounding and this detecting resistance have the detecting resistance value; These a plurality of pressure detection elements are connected with this detecting resistance respectively, and this pressure detection circuit produces this according to this detecting resistance value and this first or this second resistance value and presses intensity voltage; Wherein, when this pressure detection circuit produces first when pressing intensity voltage according to this detecting resistance value and this first resistance value, this control module judges that each this button is pressed and make this this first light beam of light emitting module output with this first pressure; When this pressure detection circuit produces second when pressing intensity voltage according to this detecting resistance value and this second resistance value, this control module judges that each this button is pressed and make this this second light beam of light emitting module output with this second pressure.
Each this button comprises button cap, scissor Connection Element and elastic body; Wherein, this button cap is revealed in outside this base, in order to touched and produce this signal corresponding to this button; This scissor Connection Element is connected in this button cap, with so that this button cap between preset stroke, move up and down with respect to this base; This elastic body is arranged at the below of this button cap; In order to when this button cap touched and be compressed when moving down and accumulate an elastic force with respect to this base; And when this button cap is released, applies this elastic force and give this button cap, this button cap is up moved with respect to this base.
This first light beam is to show with first color, and this second light beam is to show with second color.
This first light beam glimmers with first frequency, and this second light beam is with the second frequency flicker, and this first frequency is less than this second frequency.
The present invention is through being provided with light emitting module, pressure detection circuit and control module etc. in keyboard; Not only can make computing machine carry out the instruction of difference in functionality according to the power that the user presses button; And the difference that can press power is sent different light beams and is reminded the user; Make the user learn that touched button will make computing machine carry out which instruction, therefore, the user can be familiar with the operation of pressure-sensing formula keyboard more quickly when use is of the present invention.
Description of drawings
Fig. 1 is the surface structure synoptic diagram of known keyboard.
Fig. 2 is the internal circuit synoptic diagram of known keyboard.
Fig. 3 is the structural profile synoptic diagram of pressure-sensing formula illuminated keyboard of the present invention one preferred embodiment.
Fig. 4 is the structural profile synoptic diagram of the button of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.
Fig. 5 is the internal circuit synoptic diagram of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.
Fig. 6 is the circuit diagram of the key scanning matrix of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.
Fig. 7 is the light structural profile synoptic diagram of pressing of button quilt of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.
Fig. 8 is that the button of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment is by the structural profile synoptic diagram of weight.
Fig. 9 is that pressure-sensing formula illuminated keyboard of the present invention preferred embodiment is by the internal circuit synoptic diagram of weight.
Figure 10 is the structural profile synoptic diagram of another preferred embodiment of pressure-sensing formula illuminated keyboard of the present invention.
Embodiment
See also Fig. 3 about pressure-sensing formula illuminated keyboard provided by the invention, it is the structural profile synoptic diagram of pressure-sensing formula illuminated keyboard of the present invention one preferred embodiment.In this preferred embodiment, pressure-sensing formula illuminated keyboard 2 comprises base 20, a plurality of button 21, film switch circuit 22, light emitting module 23 and control module 24 (please with reference to Fig. 5).A plurality of buttons 21 are positioned at base 20 tops; Each button 21 in a plurality of buttons 21 is exported signal in order to be pressed by pressure; Film switch circuit 22 is between base 20 and a plurality of button 21 and be arranged on the light emitting module 23; And film switch circuit 22 comprises pressure detection circuit 221,221 detectings of this pressure detection circuit should press the pressure of a plurality of buttons 21 and produce press intensity voltage.Light emitting module 23 is arranged between base 20 and a plurality of button 21; Light emitting module 23 comprises a plurality of light emitting diodes 231 (Light Emitter Diode; LED) and LGP 232; A plurality of light emitting diodes 231 are provided with and are arranged in the both sides (only showing two among the figure) of a plurality of buttons 21 respectively, in order to export first light beam B1 (please with reference to Fig. 7) and the second light beam B2 (please with reference to Fig. 8).LGP 232 and film switch circuit 22 are superimposed and be positioned at the below of film switch circuit 22, in order to change the ejaculation direction of the first light beam B1 and the second light beam B2.Wherein, the first light beam B1 shows with first color, and the second light beam B2 shows with second color.In another embodiment, first light beam is that B1 glimmers with first frequency, and the second light beam B2 is with the second frequency flicker, and first frequency is less than second frequency.In this preferred embodiment, the first light beam B1 shows with first color (like blueness), and the second light beam B2 shows second color (like green).
Next specify the structure of pressure-sensing formula illuminated keyboard with one key, see also Fig. 4, it is the structural profile synoptic diagram of the button of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.From top to bottom display button 21, film switch circuit 22, light emitting module 23 and base 20 in regular turn among Fig. 4.The structure of button 21 at first is described; Button 21 with the rightmost side in the pressure-sensing formula illuminated keyboard 2 is explained; Button 21 comprises button cap 211, scissor Connection Element 212 and elastic body 213; Button cap 211 is revealed in outside the base 20, press and produce the signal corresponding to button 21 in order to the person of being used, and button cap 211 can adopt the material of partially transparent or whole clearing and can be penetrated by light.Scissor Connection Element 212 is connected in button cap 211, with so that button cap 211 move up and down with respect to base 20.And elastic body 213 is arranged at the below of button cap 211, is compressed when moving down with respect to base 20 in order to press as button cap 211 persons of being used and accumulates an elastic force.When the user no longer presses button cap 211 and when it is released, this resilient force is in button cap 211, button cap 211 is up moved with respect to base 20 and returns the position before touched.In this preferred embodiment, elastic body 213 is to process with rubber.
In this preferred embodiment, the pressure detection circuit 221 of film switch circuit 22 comprises a plurality of pressure detection elements 2211, and each pressure detection element 2211 is corresponding to a button 21.Button 21 with the rightmost side in the pressure-sensing formula illuminated keyboard 2 is explained; Among Fig. 4, comprise detecting high impedance contact 2211A and detecting Low ESR contact 2211B corresponding to the pressure detection element 2211 of rightmost side button 21, in this preferred embodiment; Pressure detection element 2211 is to be pressure-sensing resistance (Force Sensing Resistance; FSR), and detect high impedance contact 2211A and process, and detecting Low ESR contact 2211B processes with metal with graphite.When button 21 persons of not being used press,, therefore make pressure detection element 2211 have first resistance value because detecting high impedance contact 2211A itself has the high resistant resistance.And when button 21 persons of being used pressed, detecting high impedance contact 2211A contacted with detecting Low ESR contact 2211B and makes pressure detection element 2211 produce the second resistance value r
2(please with reference to Fig. 5), and second resistance value is less than first resistance value.Be arranged in the light emitting module 23 of film switch circuit 22 belows, because button 21 is touched, make a plurality of light emitting diode 231 output first light beam B1 or second light beam B2, LGP 232 then changes the ejaculation direction of the first light beam B1 and the second light beam B2.
Next please consult Fig. 4 and Fig. 5 simultaneously, Fig. 5 is the internal circuit synoptic diagram for pressure-sensing formula illuminated keyboard of the present invention preferred embodiment.Film switch circuit 22 also comprises the first film circuit board 222 and second film circuit board 223 except pressure detection circuit 211; Second film circuit board 223 is superimposed with the first film circuit board 222; And the first film circuit board 222 has a plurality of scanning incoming line Col.1～Col.18; And each scanning incoming line has an input Low ESR contact 2221, and second film circuit board 223 has a plurality of scanning output line Row1～Row8, and each this scanning output line has output Low ESR contact 2231; In this preferred embodiment, input Low ESR contact 2221 and output Low ESR contact 2231 all are to process with metal.A plurality of scanning output line Row1～Row8 and a plurality of scanning incoming line Col.1～Col.18 intermesh and form the keyboard scan matrix M corresponding to a plurality of buttons 21, and be as shown in Figure 6.
Please consult Fig. 5 and Fig. 6 simultaneously; In the keyboard scan matrix M; A plurality of input Low ESR contacts 2221 and a plurality of output Low ESR contacts 2231 form a plurality of button contact C1 corresponding to a plurality of buttons 21, C2 or the like; Because the keyboard scan matrix M is to be 8 * 18, therefore a plurality of scanning output line Row1～Row8 and a plurality of scanning incoming line Col.1～Col.18 interlock and can form 144 button contacts.Can know that by Fig. 6 the first button contact C1 is staggered and form with the first scanning output line Row1 by the first scanning incoming line Col.1, and the second button contact C2 scans output line Row1 by the 3rd scanning incoming line Col.3 and first to interlock and form.Among Fig. 5; Pressure detection circuit 221 also comprises detecting resistance R a; Detecting resistance R a has detecting resistance value ra, and each the pressure detection element 2211 in the pressure detection circuit 221 connect with detecting resistance R a respectively, and detects resistance R a and pressure detection element 2211 dividing potential drops and produce and press intensity voltage.Among Fig. 5, control module 24 is connected in a plurality of light emitting diodes 231 of film switch circuit 22 and light emitting module 23, in order to why to judge touched button.And control module 24 is preset with the voltage threshold value; Control module 24 also can be in order to judging the pressure intensity that puts on the button 22 according to the magnitude relationship that presses intensity voltage and voltage threshold value, and should pressure intensity and control a plurality of light emitting diodes 231 and export the first light beam B1 or the second light beam B2.
Illustrate; Set first button 21 in a plurality of buttons 21 corresponding to the first button contact C1, and the first button contact C1 be by the scanning of first among a plurality of scanning output line Row1～Row8 output line Row1 and the first scanning incoming line Col.1 among a plurality of scanning incoming line Col.1～Col.18 interlock form.When the user does not press first button 21; Pressure detection element 2211 has first resistance value (it is identical with detecting resistance value ra to set first resistance value); So pressure detection circuit 221 detect first to press intensity voltage be the half the of high logic voltage; In this preferred embodiment, setting high logic voltage is 5 volts, is 2.5 volts and first button 21 first when not touched presses intensity voltage.When the user presses first button 21; On the first film circuit board 222 first input Low ESR contact 2221 contact with the first output Low ESR contact 2231 on second film circuit board 223 and makes the first scanning incoming line Col.1 scan output line Row1 conducting with first, so control module 24 can scan incoming line Col.1 and first according to first of conducting and scans output line Row1 and judge that the button that the person of being used presses is to be first button 21.And the touched situation of all the other button contacts in the keyboard scan matrix M, like the situation of the second button contact C2 and above-mentioned in like manner no longer adding explanation.
Next explain that the user presses the situation of first button 21 with different pressures, please consult Fig. 4 and Fig. 7 simultaneously, Fig. 7 is that button for pressure-sensing formula illuminated keyboard of the present invention preferred embodiment is by light structural profile synoptic diagram of pressing.Among Fig. 4; First button 21 persons of not being used press; In the first film circuit board 222 and second film circuit board 223 corresponding to first button 21; The first input Low ESR contact 2221 of the first film circuit board 222 does not contact with the first output Low ESR contact 2231 of second film circuit board 223, and in the first pressure detection element 2211 corresponding to first button 21, its detecting high impedance contact 2211A does not also contact with detecting Low ESR contact 2211B.When the user presses first button 21 with first pressure; Button cap 211 is moved the distance of the first preset stroke D and is pushed against elastic body 213 by position originally, and elastic body 213 presses the first film circuit board 222 and the first input Low ESR contact 2221 of the first film circuit board 222 is contacted with the conducting first scanning incoming line Col.1 and the first scanning output line Row1 with the first output Low ESR contact 2231 of second film circuit board 223.On the other hand; The detecting high impedance contact 2211A of the first pressure detection element 2211 contacts with detecting Low ESR contact 2211B; And have the first contact area A1 between detecting high impedance contact 2211A and detecting Low ESR contact 2211B, make the first pressure detection element 2211 produce the second resistance value r
2, and the second resistance value r
2Less than first resistance value.
Among Fig. 5; When first button 21 is touched; The first scanning output line Row1 and first scans incoming line Col.1 conducting and obtains high logic voltage (that is 5 volts), and owing to detect resistance R a ground connection, therefore detects the resistance R a and the first pressure detection element 2211 to form bleeder circuit and make 221 generations second of pressure detection circuit press intensity voltage V2; Wherein, because the second resistance value r
2Therefore less than first resistance value, second press intensity voltage V2 (being set at 3 volts) and press intensity voltage greater than first.Next control module 24 presses intensity voltage V2 through comparison second and can learn that with preset voltage threshold value (being set at 4 volts) second presses intensity voltage V2 less than the voltage threshold value; Therefore control module 24 judges that first pressure that presses first button 21 is to belong to light pressure pressure; And a plurality of light emitting diode 231 outputs of the control module 24 controls first light beam B1 makes pressure-sensing formula illuminated keyboard 2 show blue light.
Next please consult Fig. 8 and Fig. 9 simultaneously; Its for the button of pressure-sensing formula illuminated keyboard of the present invention preferred embodiment by the structural profile synoptic diagram of weight, and Fig. 9 be for pressure-sensing formula illuminated keyboard of the present invention preferred embodiment by the internal circuit synoptic diagram of weight.When the user presses first button 21 with second pressure; Button cap 211 is likewise moved the distance of the second preset stroke D ' and is pushed against elastic body 213 by position originally, and elastic body 213 presses the first film circuit board 222 and the first input Low ESR contact 2221 of the first film circuit board 222 is contacted with the conducting first scanning incoming line Col.1 and the first scanning output line Row1 with the first output Low ESR contact 2231 of second film circuit board 223.On the other hand; The detecting high impedance contact 2211A of the first pressure detection element 2211 contacts with detecting Low ESR contact 2211B; And has the second contact area A2 between detecting high impedance contact 2211A and detecting Low ESR contact 2211B; Make the first pressure detection element 2211 produce the 3rd resistance value r3, and the 3rd resistance value r
3Less than the second resistance value r
2
Among Fig. 9; When first button 21 is touched; The first scanning output line Row1 and first scans incoming line Col.1 conducting and obtains high logic voltage (that is 5 volts), and owing to detect resistance R a ground connection, therefore detects the resistance R a and the first pressure detection element 2211 to form bleeder circuit and make 221 generations the 3rd of pressure detection circuit press intensity voltage V3; Wherein, because the 3rd resistance value r
3Less than the second resistance value r
2Therefore, the 3rd press intensity voltage V3 (being set at 4.2 volts) and press intensity voltage (that is 3 volts) greater than second.Next control module 24 presses intensity voltage V3 through comparison the 3rd and can learn that with preset voltage threshold value the 3rd presses intensity voltage V3 greater than voltage threshold value (that is 4 volts); Therefore control module 24 judges that second pressure that presses first button 21 is to belong to weight pressure; And a plurality of light emitting diode 231 outputs of the control module 24 controls second light beam B2 makes pressure-sensing formula illuminated keyboard 2 show green glow.
What need special instruction is; Because when gently pressing first button 21; The first contact area A1 between detecting high impedance contact 2211A and detecting Low ESR contact 2211B is less; Cause the conduction intensity between detecting high impedance contact 2211A and detecting Low ESR contact 2211B lower, therefore the first pressure detection element 2211 can produce the second bigger resistance value r
2The second resistance value r
2Big more, dividing potential drop and produce second to press intensity voltage V2 more little, so control module 24 can judge that the pressure that presses first button 21 belongs to light pressure pressure or weight pressure according to the size that relatively presses intensity voltage V2 and voltage threshold value.And the voltage threshold value is to obtain through testing repeatedly, so the voltage threshold value is quite high as the fiduciary level of judgment standard.In like manner; During weight first button 21; The second contact area A2 between detecting high impedance contact 2211A and detecting Low ESR contact 2211B is bigger; Conduction intensity between detecting high impedance contact 2211A and detecting Low ESR contact 2211B is higher, and therefore the first pressure detection element 2211 can produce the 3rd less resistance value r
3The 3rd resistance value r
3More little, dividing potential drop and produce the 3rd to press intensity voltage V3 big more, be to belong to weight pressure so control module 24 can be judged the pressure that presses first button 21.
Please consult Fig. 7 once more; When a plurality of light emitting diodes 231 are exported the first light beam B1; The first light beam B1 gets into LGP 232 with first direction D1 (promptly parallel with film switch circuit 22 horizontal direction); And the first light beam B1 is changed direct of travel by refraction in LGP 232; And leaving LGP 232 perpendicular to the second direction D2 of first direction D1 (promptly vertical with film switch circuit 22 vertical direction), and the first light beam B1 produces refraction and scattering and sees through button cap 211 in the inner structure of a plurality of buttons 21, so pressure-sensing formula illuminated keyboard 2 is able to show blue light.And the situation of a plurality of light emitting diode 231 outputs second light beam B2 is not also in like manner adding explanation.
In addition, the present invention also provides another preferred embodiment, sees also Figure 10, and it is the structural profile synoptic diagram of another preferred embodiment of pressure-sensing formula illuminated keyboard of the present invention.In this preferred embodiment, pressure-sensing formula illuminated keyboard 3 comprises base 30, a plurality of button 31, film switch circuit 32, light emitting module 33 and control module (not being shown among the figure).A plurality of buttons 31 are positioned at the top of base 30; Each button 31 in a plurality of buttons 31 is exported signal in order to be pressed by pressure; Film switch circuit 32 is arranged between base 30 and a plurality of button 31; And film switch circuit 32 comprises pressure detection circuit 321, and this pressure detection circuit 321 is in order to produce the intensity voltage that presses corresponding to pressure according to the pressure that presses a plurality of buttons 31.Light emitting module 33 between base 30 and a plurality of button 31 and light emitting module 33 be arranged on the film switch circuit 32; Light emitting module 33 comprises a plurality of light emitting diodes 331 and LGP 332; A plurality of light emitting diodes 331 are provided with and are arranged in the both sides of a plurality of buttons 31 respectively, in order to export first light beam (not indicating among the figure) and second light beam (not indicating among the figure).LGP 332 and film switch circuit 32 are superimposed and be positioned at film switch circuit 32 tops, in order to change the ejaculation direction of first light beam and second light beam.And LGP 332 comprises a plurality of perforates 3321, and its position is corresponding to a plurality of buttons 31, in order to when a plurality of button 31 is touched, makes a plurality of buttons 31 pass corresponding a plurality of perforates 3321 and is able to trigger film switch circuit 32.
The difference of the pressure-sensing formula illuminated keyboard 3 of this preferred embodiment and the pressure-sensing formula illuminated keyboard 2 of a last preferred embodiment only is to include the film switch circuit and the relation of the position between light emitting module of pressure detection circuit.In the pressure-sensing formula illuminated keyboard 2 of a last preferred embodiment, film switch circuit 22 and light emitting module 23 all between base 20 and a plurality of button 21 and film switch circuit 22 be stacked and placed on the light emitting module 23, as shown in Figure 3.And in the pressure-sensing formula illuminated keyboard 3 of this preferred embodiment, film switch circuit 32 and light emitting module 33 also all between base 30 and a plurality of button 31 and light emitting module 33 be stacked and placed on the film switch circuit 32, shown in figure 10.Identical with a last preferred embodiment and repeat no more as for the operation situation of pressure-sensing formula illuminated keyboard 3 and principle.
Comprehensive above explanation can be known; Pressure-sensing formula illuminated keyboard of the present invention not only can make computing machine carry out the instruction of difference in functionality according to the power that the user presses button; More can answer difference to press power and show that with different light beams that is to say, pressure-sensing formula illuminated keyboard of the present invention can show with the prompting user by different light beams; Make the user learn that touched button will make computing machine carry out which instruction, is familiar with the operation of pressure-sensing formula keyboard fast to help the user.
The above is merely preferred embodiment of the present invention, is not in order to limiting claim scope of the present invention, and therefore all other do not break away from the equivalence of being accomplished under the disclosed spirit and change or modify, and all should be contained in the scope of the present invention.
Claims (10)
1. pressure-sensing formula illuminated keyboard is characterized in that: comprising:
Base;
A plurality of buttons are positioned at this base top, and each button with a pressure touched and output signal;
Film switch circuit is arranged between this base and this a plurality of buttons, and this film switch circuit comprises the pressure detection circuit, this pressure detection circuit should pressure in order to detecting and produce press intensity voltage;
Light emitting module is arranged between this base and this a plurality of buttons, in order to produce first light beam or second light beam; And
Control module is connected in this film switch circuit and this light emitting module, in order to pressing the intensity that intensity voltage is judged this pressure according to this, and makes this light emitting module this first light beam of output or this second light beam according to the intensity of this pressure.
2. pressure-sensing formula illuminated keyboard as claimed in claim 1, it is characterized in that: this film switch circuit comprises:
The first film circuit board has a plurality of scanning incoming lines, and each this scanning incoming line has input Low ESR contact; And
Second film circuit board; Superimposed with this first film circuit board; This second film circuit board has a plurality of scanning output lines; And each this scanning output line has output Low ESR contact, and these a plurality of scanning output lines are in order to forming the keyboard scan matrixes with these a plurality of scanning incoming lines, and each of this keyboard scan matrix should should be exported the Low ESR contact corresponding to this button with each by input Low ESR contact; Wherein when first button of these a plurality of buttons is touched; This first film circuit board contacts with this output Low ESR contact of this second film circuit board, and contacts and conducting corresponding to exporting the Low ESR contact corresponding to first of this first button in the first input Low ESR contact of this first button and these a plurality of scanning output lines in these a plurality of scanning incoming lines.
3. pressure-sensing formula illuminated keyboard as claimed in claim 1, it is characterized in that: this light emitting module comprises:
A plurality of light emitting diodes are arranged at the both sides of these a plurality of buttons, in order to export this first light beam and this second light beam; And
LGP, superimposed with this film switch circuit, in order to change the ejaculation direction of this first light beam and this second light beam, make this first light beam and this second light beam get into this LGP, and leave this LGP with second direction with first direction; Wherein this first direction is parallel with this film switch circuit, and this first direction is vertical with this second direction.
4. pressure-sensing formula illuminated keyboard as claimed in claim 3, it is characterized in that: this film switch circuit is arranged on this LGP.
5. pressure-sensing formula illuminated keyboard as claimed in claim 3, it is characterized in that: this LGP is arranged on this film switch circuit, and this LGP has a plurality of perforates.
6. pressure-sensing formula illuminated keyboard as claimed in claim 1; It is characterized in that: this pressure detection circuit comprises a plurality of pressure detection elements; And each this pressure detection element comprises detecting high impedance contact and detecting Low ESR contact; When each this button is pressed with first pressure; This detecting high impedance contact contacts with this detecting Low ESR contact, and has first contact area between this detecting high impedance contact and this detecting Low ESR contact, makes this first pressure detection element produce first resistance value; And when each this button is pressed with second pressure greater than this first pressure; This detecting high impedance contact contacts with this detecting Low ESR contact; And have second contact area between this detecting high impedance contact and this detecting Low ESR contact, make each this pressure detection element produce second resistance value greater than this first resistance value greater than this first contact area.
7. pressure-sensing formula illuminated keyboard as claimed in claim 6; It is characterized in that: this pressure detection circuit also comprises detecting resistance; This detecting resistance eutral grounding and this detecting resistance have the detecting resistance value; These a plurality of pressure detection elements are connected with this detecting resistance respectively, and this pressure detection circuit produces this according to this detecting resistance value and this first or this second resistance value and presses intensity voltage; Wherein, when this pressure detection circuit produces first when pressing intensity voltage according to this detecting resistance value and this first resistance value, this control module judges that each this button is pressed and make this this first light beam of light emitting module output with this first pressure; When this pressure detection circuit produces second when pressing intensity voltage according to this detecting resistance value and this second resistance value, this control module judges that each this button is pressed and make this this second light beam of light emitting module output with this second pressure.
8. pressure-sensing formula illuminated keyboard as claimed in claim 1 is characterized in that: each this button comprises:
Button cap is revealed in outside this base, in order to touched and produce this signal corresponding to this button;
Scissor Connection Element is connected in this button cap, with so that this button cap between preset stroke, move up and down with respect to this base; And
Elastic body; Be arranged at the below of this button cap, in order to when this button cap touched and be compressed when moving down and accumulate an elastic force with respect to this base, and when this button cap is released; Apply this elastic force and give this button cap, this button cap is up moved with respect to this base.
9. pressure-sensing formula illuminated keyboard as claimed in claim 1 is characterized in that: this first light beam is to show with first color, and this second light beam is to show with second color.
10. pressure-sensing formula illuminated keyboard as claimed in claim 1 is characterized in that: this first light beam glimmers with first frequency, and this second light beam is with the second frequency flicker, and this first frequency is less than this second frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244550XA CN102346551A (en) | 2010-07-29 | 2010-07-29 | Pressure sensing luminous keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010244550XA CN102346551A (en) | 2010-07-29 | 2010-07-29 | Pressure sensing luminous keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102346551A true CN102346551A (en) | 2012-02-08 |
Family
ID=45545286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010244550XA Pending CN102346551A (en) | 2010-07-29 | 2010-07-29 | Pressure sensing luminous keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102346551A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165320A (en) * | 2013-02-25 | 2013-06-19 | 苏州达方电子有限公司 | Key with analog signals and digital signals |
| CN103970280A (en) * | 2014-04-24 | 2014-08-06 | 苏州达方电子有限公司 | Cursor device and keyboard |
| CN105551864A (en) * | 2015-12-28 | 2016-05-04 | 合肥联宝信息技术有限公司 | Keyboard and electronic equipment |
| US20170168606A1 (en) * | 2015-11-20 | 2017-06-15 | Zhang Lu | Interactive high-clarity glass electronic whiteboard |
| CN107329597A (en) * | 2017-08-23 | 2017-11-07 | 湖南中力皓电子科技有限公司 | One kind reinforces TrackPoint |
| CN107369584A (en) * | 2016-05-13 | 2017-11-21 | 致伸科技股份有限公司 | Press-key structure |
| CN107917771A (en) * | 2016-10-06 | 2018-04-17 | 致伸科技股份有限公司 | Force sensing input unit |
| CN108023584A (en) * | 2016-11-02 | 2018-05-11 | 致伸科技股份有限公司 | Press-key structure |
| CN108022785A (en) * | 2016-11-02 | 2018-05-11 | 致伸科技股份有限公司 | Keyboard |
| CN109302170A (en) * | 2018-08-30 | 2019-02-01 | 歌尔科技有限公司 | The control method of analogue-key, terminal device and analogue-key |
| CN109785936A (en) * | 2019-01-23 | 2019-05-21 | 中新科技集团股份有限公司 | A kind of mood test method, apparatus, equipment and computer readable storage medium |
| TWI682316B (en) * | 2018-06-27 | 2020-01-11 | 精元電腦股份有限公司 | Impulse induction button system and method |
| CN113467744A (en) * | 2020-03-30 | 2021-10-01 | 重庆达方电子有限公司 | Input device and sound effect sending method using same |
| CN116913717A (en) * | 2023-09-13 | 2023-10-20 | 合肥联宝信息技术有限公司 | Film keyboard |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5995026A (en) * | 1997-10-21 | 1999-11-30 | Compaq Computer Corporation | Programmable multiple output force-sensing keyboard |
| US20090201179A1 (en) * | 1999-09-15 | 2009-08-13 | Michael Shipman | Illuminated keyboard |
| US7712920B1 (en) * | 2009-05-08 | 2010-05-11 | Zippy Technology Corp. | Light color adjustment structure for illuminated keyboards |
| US20100148999A1 (en) * | 2008-12-16 | 2010-06-17 | Casparian Mark A | Keyboard with user configurable granularity scales for pressure sensitive keys |
-
2010
- 2010-07-29 CN CN201010244550XA patent/CN102346551A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5995026A (en) * | 1997-10-21 | 1999-11-30 | Compaq Computer Corporation | Programmable multiple output force-sensing keyboard |
| US20090201179A1 (en) * | 1999-09-15 | 2009-08-13 | Michael Shipman | Illuminated keyboard |
| US20100148999A1 (en) * | 2008-12-16 | 2010-06-17 | Casparian Mark A | Keyboard with user configurable granularity scales for pressure sensitive keys |
| US7712920B1 (en) * | 2009-05-08 | 2010-05-11 | Zippy Technology Corp. | Light color adjustment structure for illuminated keyboards |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103165320B (en) * | 2013-02-25 | 2015-09-02 | 苏州达方电子有限公司 | There is the button of analog signal and digital signal |
| CN103165320A (en) * | 2013-02-25 | 2013-06-19 | 苏州达方电子有限公司 | Key with analog signals and digital signals |
| CN103970280A (en) * | 2014-04-24 | 2014-08-06 | 苏州达方电子有限公司 | Cursor device and keyboard |
| US10372275B2 (en) * | 2015-11-20 | 2019-08-06 | Opton (Shunchang) Optics Co., Ltd. | Interactive high-clarity glass electronic whiteboard |
| US20170168606A1 (en) * | 2015-11-20 | 2017-06-15 | Zhang Lu | Interactive high-clarity glass electronic whiteboard |
| CN105551864A (en) * | 2015-12-28 | 2016-05-04 | 合肥联宝信息技术有限公司 | Keyboard and electronic equipment |
| CN107369584A (en) * | 2016-05-13 | 2017-11-21 | 致伸科技股份有限公司 | Press-key structure |
| CN107369584B (en) * | 2016-05-13 | 2020-07-10 | 致伸科技股份有限公司 | Key structure |
| CN107917771A (en) * | 2016-10-06 | 2018-04-17 | 致伸科技股份有限公司 | Force sensing input unit |
| CN108023584A (en) * | 2016-11-02 | 2018-05-11 | 致伸科技股份有限公司 | Press-key structure |
| CN108022785A (en) * | 2016-11-02 | 2018-05-11 | 致伸科技股份有限公司 | Keyboard |
| CN108023584B (en) * | 2016-11-02 | 2020-08-14 | 致伸科技股份有限公司 | Key structure |
| CN107329597A (en) * | 2017-08-23 | 2017-11-07 | 湖南中力皓电子科技有限公司 | One kind reinforces TrackPoint |
| CN107329597B (en) * | 2017-08-23 | 2023-09-29 | 湖南中力皓电子科技有限公司 | Reinforced pointing rod |
| TWI682316B (en) * | 2018-06-27 | 2020-01-11 | 精元電腦股份有限公司 | Impulse induction button system and method |
| CN109302170A (en) * | 2018-08-30 | 2019-02-01 | 歌尔科技有限公司 | The control method of analogue-key, terminal device and analogue-key |
| CN109785936A (en) * | 2019-01-23 | 2019-05-21 | 中新科技集团股份有限公司 | A kind of mood test method, apparatus, equipment and computer readable storage medium |
| CN113467744A (en) * | 2020-03-30 | 2021-10-01 | 重庆达方电子有限公司 | Input device and sound effect sending method using same |
| CN116913717A (en) * | 2023-09-13 | 2023-10-20 | 合肥联宝信息技术有限公司 | Film keyboard |
| CN116913717B (en) * | 2023-09-13 | 2023-11-28 | 合肥联宝信息技术有限公司 | Film keyboard |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102346551A (en) | Pressure sensing luminous keyboard | |
| TWI423287B (en) | Force sensing and backlight keyboard | |
| CN102375546B (en) | Two-section type pressure sensing keyboard | |
| US8314352B2 (en) | Two-level pressure sensitive keyboard | |
| US9454239B2 (en) | Enabling touch events on a touch sensitive mechanical keyboard | |
| CN103713742B (en) | capacitive touch keyboard | |
| CN103839720A (en) | Light-emitting keyboard | |
| US20120012446A1 (en) | Illuminated keyboard provided distinguishable key locations | |
| US10976834B1 (en) | Light integrated sensing membrane | |
| US9444454B2 (en) | Dynamically reconfigurable capacitive sensor array | |
| CN102842453A (en) | Key structure with scissors type connecting element | |
| US20130148327A1 (en) | Illuminating keyboard | |
| TW201426801A (en) | Sensing keyboard device with luminous key | |
| CN103513840A (en) | Auxiliary input device, and electronic device and electronic system including the auxiliary input device | |
| US20110050582A1 (en) | Input device for electronic apparatus | |
| CN102854987B (en) | Touch control keyboard device and flexible keypad plate | |
| CN102375545A (en) | Keyboard with mode switching function | |
| KR100960942B1 (en) | Complex-type input device with touch sensing features | |
| US8975547B2 (en) | Keyswitch and keyboard including the same | |
| CN202796585U (en) | Key unit and light emitting keyboard comprising same | |
| CN102456492A (en) | Luminescent keyboard | |
| CN201563150U (en) | Full-capacitance touch control-type mobile phone keyboard | |
| KR20200023183A (en) | Input device | |
| EP3975426A1 (en) | A mutually capacitive sensor for a touchpad | |
| CN101261555A (en) | Computer braille hand-writing pad |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20160608 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |