TW201530588A - Luminous keyboard - Google Patents

Abstract

The present invention discloses a luminous keyboard. The luminous keyboard includes a plurality of direct type illumination elements, an induced circuit layer, a plurality of keys and a plurality of light transmissive elastomers. When one of the keys is moved near to the induced circuit, the induced circuit generates a corresponding non-contact mode key signal. One direct type illumination element corresponds to one key and is arranged under the corresponding key. One light transmissive elastomer corresponds to one direct type illumination element and is arranged between the corresponding direct type illumination element and the corresponding key. Light beams of each direct type illumination element pass through the corresponding light transmissive elastomer and project to the corresponding key.

Description

Illuminated keyboard

The invention relates to a keyboard, in particular to a keyboard with a lighting function.

In recent years, due to the rapid development of the information industry, many users may use portable information devices in different environments, such as notebook computers, mobile phones or personal digital assistants. In a weak environment, the user may not be able to see the numbers and characters on the keyboard keys, which may cause difficulty in the operation. In severe cases, the visual acuity may be impaired because the button markings are barely recognized. Therefore, the introduction of the illuminated keyboard can improve the user's inconvenience of using the keyboard in low light. What's more, with different lighting configurations, the information device using the illuminated keyboard can be made more beautiful, which in turn increases its sales.

Please refer to FIG. 1 , which is a cross-sectional view showing the structure of a conventional illuminated keyboard. The illuminated keyboard 1 includes a reflector 11, a light guide 12, a support plate 13, a film circuit board 14, a plurality of buttons 15, and a lateral light-emitting element 16, wherein the film circuit board 14 includes a lower layer 141, an upper layer 142, and a lower layer The middle plate 143 between the plate and the upper plate, and the lower plate 141, the middle plate 143 and the upper plate 142 are all made of a transparent light guiding material, and the transparent light guiding material may be polycarbonate (PC) or polyethylene ( PET) and so on.

In addition, please refer to FIG. 2, which is an exploded perspective view of the thin film circuit board of the illuminated keyboard shown in FIG. 1. The lower layer 141 has a first circuit pattern 1411 composed of a plurality of silver glue lines 14111 and a plurality of lower contacts 14112. The upper board 142 has a second circuit composed of a plurality of silver glue lines 14211 and a plurality of upper contacts 14212. The pattern 1421, in turn, the middle layer plate 143 has a contact opening 1431 corresponding to the plurality of lower contacts 14122 and the plurality of upper contacts 14212, wherein each upper contact 14212 and its corresponding lower contact 14112 form a membrane switch 144.

Moreover, the support plate 13 is disposed under the film circuit board 14 and has a plurality of through holes 131, a first fixing structure 132 and a second fixing structure 133; and each button 15 includes a key cap 151, an elastic body 152, and a scissors connecting member 153, and the keycap 151 includes a first keycap fixing structure 1511 and a second keycap fixing structure 1512; and the scissors connecting element 153 includes a first frame 1531 and a second frame 1532; further, the elastic body 152 is located at the keycap 151 Between the film circuit board 141 and the film.

The film circuit board 14 has a through hole 145 and a through hole 146 through which the first fixing structure 132 and the second fixing structure 133 pass, respectively, so that one end 15311 of the first frame 1531 can be connected to the second fixing structure 133. The other end 15312 can be connected to the first keycap fixing structure 1511, and one end 15321 of the second frame 1532 can be connected to the first fixing structure 132, and the other end 15322 can be connected to the second keycap fixing structure 1512.

When any of the buttons 15 is pressed and moved downward relative to the support plate 13, the first frame 1531 and the second frame 1532 of the scissor-type connecting member 153 are changed from the open state to the overlapped state, and the key is moved downward. The cap 151 presses the elastic body 152 to cause the elastic body 152 to abut the corresponding upper joint 14212, so that the corresponding upper joint 14212 contacts the corresponding lower joint via the corresponding contact opening 1431. 14122, thereby making the corresponding membrane switch 144 electrically conductive, so that the illuminated keyboard 1 generates a corresponding button signal. When the button 15 is no longer touched, the key cap 151 moves upward relative to the support plate 13 in response to the elastic force of the elastic body 152, and the first frame 1531 and the second frame 1532 are changed from the superimposed state to the open state. The state is closed and the keycap 151 will return to its original position.

Furthermore, the lateral light-emitting elements 16 are disposed on the sides of the light guide plate 12, It is used to provide a light beam to enter the light guide plate 12. The light guide plate 12 is disposed on the light reflecting plate 11 and has a plurality of light guiding points 121 for collecting and scattering the light beam on the lower surface thereof. The plurality of light guiding points 121 are set in accordance with the position of the corresponding plurality of keys 15. Wherein, when the light beam is incident on the light guide plate 12, the light beam is diffused to the entire light guide plate 12, and the plurality of light guide points 121 scatter the light beam upward and downward due to the relationship of the ink material, and the light beam scattered upward The plurality of through holes 131 of the support plate 13 and the film circuit board 14 are sequentially projected to the plurality of keys 15 , and the downwardly scattered light beam is further reflected by the light reflecting plate 11 to reflect the light beam upward to make the lateral light emitting element. The beam provided by 16 can be fully utilized. As described above, the plurality of keys 15 can be made to emit light. However, the conventional illuminated keyboard 1 has the following disadvantages:

1. Although the reflector 11 can assist the light beam scattered downward by the plurality of light guiding points 121 to reflect upward, the material of the reflector 11 of the conventional illuminated keyboard 1 can still penetrate a small amount of light, so that a part of the plurality of light guiding points 121 The downwardly scattered beam will penetrate the reflector 11 and cause a loss of light.

2. Although the light beam is diffused into the entire light guide plate 12 when the light beam is incident on the light guide plate 12, the light guide plate is reflected by the light guide point 121 closer to the lateral light-emitting element 16 from the light guide plate 12, so that the light guide plate The amount of light in the region farther from the mid-range lateral light-emitting element 16 is not as good as the region closer to the lateral-type light-emitting element 16.

3. Since the operating stroke of the scissor-type connecting element 153 is long, the illuminated keyboard 1 must have sufficient space for the scissor-type connecting element 153 to operate normally, but the thickness of the illuminated keyboard 1 cannot be effectively reduced. Can not meet the current appearance of electronic products toward light, thin, short development.

As can be seen from the above description of the first and second points, the conventional illuminated keyboard 1 transmits the effect of the plurality of keys 15 by the cooperation of the lateral light-emitting elements 16 and the light guide plate 12, but the light use efficiency is not good. Based on how Under the thinking of improving light use efficiency, an attempt is made to replace the lateral light-emitting element 16 with a direct-type light-emitting element and to provide a direct-light type light-emitting element under the button 15, so that the light beam can be directly supplied to the button 15, thereby obtaining better light. The efficiency of use; however, in such a method, the direct-type light-emitting element is located below the elastic body 152, which hinders the movement stroke of the elastic body 152 after being pressed, so that the user cannot press the keycap 151 by pressing it. The corresponding membrane switch 144 is electrically conductive, so that the direct light-emitting element is used instead of the lateral light-emitting element 16 and the light beam is directly supplied to the button 15, which cannot be embodied on the conventional illuminated keyboard 1.

Furthermore, in view of the above-mentioned drawbacks of the third point, a capacitive inductive keyboard has been proposed which causes the circuit board to generate an output by changing the electric field of the circuit board of the keyboard during the process of pressing the keycap. A corresponding button signal; wherein, since the capacitive inductive keyboard does not have to use a related component such as a scissor type connecting component, the overall thickness of the capacitive inductive keyboard can be effectively reduced; however, there is no capacitive inductive effect with a luminous effect. The keyboard is proposed, so in a weak light environment, the user may not be able to see the numbers and characters indicated by the keys on the capacitive inductive keyboard, thereby causing difficulty in operation or impaired vision.

SUMMARY OF THE INVENTION A primary object of the present invention is to provide an illuminated keyboard, and more particularly to an illuminated keyboard that enhances light usage efficiency and is non-contact inductive.

In a preferred embodiment, the present invention provides an illuminated keyboard, comprising: a sensing circuit layer for generating at least one non-contact button signal; at least one button disposed above the sensing circuit layer for being pressed And causing the sensing circuit layer to generate the at least one non-contact button signal; at least the following type of light emitting element is disposed under the at least one button for providing a light beam; The at least one light-transmitting elastic body is disposed between the at least one button and the at least one of the at least one type of light-emitting elements for providing an elastic force to the at least one button; wherein the at least one of the at least one type of light-emitting elements passes through the light beam The at least one light transmissive elastomer is then projected to the at least one button.

In a preferred embodiment, the sensing circuit layer includes a sensing circuit pattern and an inductive circuit board, and the sensing circuit pattern is formed on the sensing circuit board.

In a preferred embodiment, the sensing circuit layer further includes a light emitting device driving circuit pattern, and the light emitting device driving circuit pattern is formed on the sensing circuit board for driving the at least the following light emitting device to provide the light beam. .

In a preferred embodiment, the illuminated keyboard further includes a light emitting element driving circuit board and a light emitting element driving circuit pattern, and the light emitting element driving circuit pattern is formed on the light emitting element driving circuit board for driving the at least all the way down. The light-emitting element provides the light beam; wherein the sensing circuit board is located between the light-emitting element driving circuit board and the at least one button.

In a preferred embodiment, the sensing circuit layer has at least one circuit layer via corresponding to the at least one light transmissive elastomer.

In a preferred embodiment, the sensing circuit pattern includes at least one first polarity circuit case and at least one second polarity circuit pattern, and when the sensing circuit layer is energized, the at least one first polarity circuit case and the An electric field is generated between the at least one second polarity circuit pattern; wherein when the at least one button is pressed to approach the sensing circuit pattern, the electric field changes to cause the sensing circuit layer to generate the at least one non-contact button signal .

In a preferred embodiment, the sensing circuit layer includes a sensing circuit pattern and an inductive thin film circuit board, and the sensing circuit pattern is formed on the sensing film circuit board.

In a preferred embodiment, the sensing circuit layer further includes a light emitting device driving circuit pattern, and the light emitting device driving circuit pattern is formed on the sensing film circuit board for driving the at least the following light emitting device to provide the beam.

In a preferred embodiment, the illuminated keyboard further includes a light emitting element driving circuit board and a light emitting element driving circuit pattern, and the light emitting element driving circuit pattern is formed on the light emitting element driving circuit board for driving the at least all the way down. The light emitting element provides the light beam; wherein the sensing film circuit board is located between the light emitting element driving circuit board and the at least one button.

In a preferred embodiment, the sensing circuit layer has at least one circuit layer via corresponding to the at least one light transmissive elastomer.

In a preferred embodiment, the inductive film circuit board is made of polyethylene terephthalate (PET), polycarbonate (PC), thermoplastic polyurethane (TPU) or acrylic plastic. Made of (PMMA) material.

In a preferred embodiment, the sensing circuit pattern includes at least one first polarity circuit case and at least one second polarity circuit pattern, and when the sensing circuit layer is energized, the at least one first polarity circuit case and the An electric field is generated between the at least one second polarity circuit pattern; wherein when the at least one button is pressed to approach the sensing circuit pattern, the electric field changes to cause the sensing circuit layer to generate the at least one non-contact button switch Signal.

In a preferred embodiment, the at least one button comprises: a keycap exposed to the outside of the illuminated keyboard; and a conductor disposed between the keycap and the at least one light transmissive elastomer, and The key cap moves; wherein, when the keycap is pressed, the at least one transparent elastic body is compressed by the conductor, and the guiding system is brought down to the sensing circuit layer to cause the sensing circuit layer to generate the at least one non-contact Button signal.

In a preferred embodiment, the guiding system comprises a conductive foam, a Metal or a metallic paint.

In a preferred embodiment, the illuminated keyboard further includes a support plate disposed between the sensing circuit layer and the at least one button for connecting the at least one button to the support plate, and the support plate has at least A support plate is perforated for the conductor or the at least one light transmissive elastomer to be perforated through the at least one support plate.

In a preferred embodiment, the at least one button further includes a connecting component coupled between the support plate and the keycap and moving the keycap relative to the support plate.

In a preferred embodiment, the connecting element is a scissor connecting element.

In a preferred embodiment, the at least one button further includes: a key frame having a receiving hole, wherein the receiving hole is configured for the key cap to be fitted into the receiving hole; and a plurality of elastic arms, For moving the key cap up and down relative to the sensing circuit layer, each elastic arm includes an inner fixing arm portion, an outer movable arm portion and an angular transition portion, and the angular transition portion is connected to the inner fixing arm portion and the Between the outer movable arms.

In a preferred embodiment, the at least one light transmissive elastomer is formed with a plurality of microstructures for changing a transmission path of the light beam passing through the plurality of microstructures.

In a preferred embodiment, any of the plurality of microstructures is a V-CUT structure or a bite pattern structure.

In a preferred embodiment, the at least one light transmissive elastomer is provided with a lens body for changing a transmission path of the light beam passing through the at least one transparent elastic body.

In a preferred embodiment, the at least one light transmissive elastic system is a lens body for changing a transmission path of the light beam passing through the at least one transparent elastic body.

In a preferred embodiment, the illuminated keyboard further includes a metal backplane disposed under the sensing circuit layer.

In a preferred embodiment, the at least one light emitting element is a light emitting diode.

In a preferred embodiment, the illuminated keyboard is a capacitive inductive illuminated keyboard.

In a preferred embodiment, the illuminated keyboard further includes a shading element. It is formed on the surface of the at least one light transmissive elastomer.

In a preferred embodiment, the shading element is a shading ink.

1‧‧‧ illuminated keyboard

2‧‧‧Lighting keyboard

2A‧‧‧ illuminated keyboard

2B‧‧‧ illuminated keyboard

2C‧‧‧ illuminated keyboard

2D‧‧‧ illuminated keyboard

2E‧‧‧ illuminated keyboard

11‧‧‧reflector

12‧‧‧Light guide plate

13‧‧‧Support board

14‧‧‧film circuit board

15‧‧‧ button

16‧‧‧ Lateral light-emitting elements

21‧‧‧Base

22‧‧‧Lighting element drive circuit board

23‧‧‧Support board

24‧‧‧Sensor circuit layer

24C‧‧‧Sensor circuit layer

25‧‧‧ buttons

26‧‧‧Direct light-emitting elements

27‧‧‧Translucent elastomer

28‧‧‧Metal floor

29‧‧‧ button

131‧‧‧Perforation

132‧‧‧First fixed structure

133‧‧‧Second fixed structure

141‧‧‧lower board

142‧‧‧Upper board

143‧‧‧ mid-layer board

144‧‧‧ Membrane switch

145‧‧‧through hole

146‧‧‧through hole

151‧‧‧Key Cap

152‧‧‧ Elastomers

153‧‧‧Scissors connecting components

221‧‧‧Lighting element drive circuit pattern

231‧‧‧ Support plate perforation

232‧‧‧First fixed structure

233‧‧‧Second fixed structure

241‧‧‧Sensor board

242‧‧‧Sensor circuit pattern

243‧‧‧ Circuit layer perforation

244‧‧‧Inductive film circuit board

245‧‧‧Inductive film circuit board

251‧‧‧Key Cap

252‧‧‧Conductor

253‧‧‧Connecting components

271‧‧‧ lens body

272‧‧‧Microstructure

273‧‧‧Bite pattern structure

291‧‧‧Key Cap

293‧‧‧ key frame

294‧‧‧Flexible arm

1411‧‧‧First circuit pattern

1421‧‧‧second circuit pattern

1431‧‧‧Contact opening

1511‧‧‧First key cap fixing structure

1512‧‧‧Second keycap fixing structure

1531‧‧‧ first frame

1532‧‧‧ second frame

2421‧‧‧First polarity circuit pattern

2422‧‧‧second polarity circuit pattern

2423‧‧‧Capacitive push button switch

2511‧‧‧First key cap fixing structure

2512‧‧‧Second keycap fixing structure

2513‧‧‧Lighting area

2531‧‧‧ first frame

2532‧‧‧ second frame

2931‧‧‧ accommodating holes

2941‧‧‧Fixed arm

2942‧‧‧External arm

2943‧‧‧Angle Transition

14111‧‧‧Silver glue line

14112‧‧‧Contacts

14211‧‧‧Silver glue line

14212‧‧‧Contacts

15311‧‧‧One of the first frames

15312‧‧‧The other end of the first frame

15321‧‧‧One end of the second frame

15322‧‧‧The other end of the second framework

25311‧‧‧One of the first frames

25312‧‧‧The other end of the first frame

25321‧‧‧One of the second frames

25322‧‧‧The other end of the second framework

L‧‧‧beam

20‧‧‧ shading elements

Figure 1 is a schematic cross-sectional view of a conventional illuminated keyboard.

Figure 2 is an exploded perspective view of the film circuit board of the illuminated keyboard of Figure 1.

Figure 3 is a side view showing the structure of the illuminated keyboard of the present invention in the first preferred embodiment.

4 is a schematic structural view of a sensing circuit layer and a driving circuit board of the illuminated keyboard shown in FIG.

Figure 5 is a structural top view of the keycap of the illuminated keyboard of Figure 3.

Figure 6 is a schematic illustration of a preferred embodiment for diffusing a light beam through a light transmissive elastomer to a light transmissive region of the keycap.

Figure 7 is a schematic illustration of another preferred embodiment of the ability to diffuse a light beam through a light transmissive elastomer to a light transmissive region of the keycap.

Figure 8 is a schematic view showing the structure of a preferred biting pattern structure.

Figure 9 is a side elevational view showing the structure of the illuminated keyboard of the present invention in a second preferred embodiment.

Figure 10 is a side view showing the structure of the illuminated keyboard of the present invention in a third preferred embodiment.

Figure 11 is a side elevational view showing the structure of the illuminated keyboard of the present invention in a fourth preferred embodiment.

Figure 12 is a block diagram showing the structure of the sensing circuit layer of the illuminated keyboard shown in Figure 11.

Figure 13 is a side view showing the structure of the illuminated keyboard of the present invention in the fifth preferred embodiment.

Figure 14 is a side elevational view showing the structure of the illuminated keyboard of the present invention in a sixth preferred embodiment.

Figure 15 is a perspective exploded view showing the keys of the illuminated keyboard shown in Figure 14.

Fig. 16: is a schematic view showing a state in which the button of the illuminated keyboard shown in Fig. 14 is not touched.

Fig. 17 is a view showing the state of the button of the illuminated keyboard shown in Fig. 14 when it is pressed.

Figure 18 is a conceptual diagram showing the formation of a light-shielding member on a preferred light-transmissive elastomer.

Figure 19 is a conceptual diagram showing the formation of a light-shielding member on another preferred light-transmissive elastomer.

Please refer to FIG. 3 and FIG. 4. FIG. 3 is a side view showing the structure of the illuminated keyboard in the first preferred embodiment of the present invention, and FIG. 4 is a schematic structural view of the sensing circuit layer and the driving circuit board of the illuminated keyboard shown in FIG. The illuminated keyboard 2 includes a base 21, a light emitting element driving circuit board 22, a sensing circuit layer 24, a supporting board 23, and a plurality of buttons 25 from bottom to top, and the illuminated keyboard 2 further includes a plurality of buttons corresponding to the plurality of buttons 25. a direct-type light-emitting element 26 and a plurality of light-transmissive elastic bodies 27 corresponding to the plurality of direct-type light-emitting elements 26; wherein the base 21 is used to carry the light-emitting element drive circuit board 22, the sensing circuit layer 24, the support board 23, and the plurality of keys 25, a plurality of direct-type light-emitting elements 26 and a plurality of light-transmitting elastic bodies 27, and a light-emitting element drive circuit pattern 221 is formed on the light-emitting element drive circuit board 22, and each of the direct-type light-emitting elements 26 is electrically connected to the light-emitting element drive The circuit pattern 221 is such that the direct type light emitting element 26 can be driven by the light emitting element drive circuit board 22 to provide a light beam.

Moreover, each of the transparent elastic bodies 27 is disposed between the corresponding button 25 and the corresponding direct-type light-emitting element 26, and the light-transmitting elastic body 27 has a light-transmitting effect, such as a light-transmitting material. Therefore, the light beam provided by each of the following type of light-emitting elements 26 can be projected to the corresponding button 25 after passing through the corresponding light-transmitting elastic body 27. In the preferred embodiment, the direct-type light-emitting element 26 is a light-emitting diode, but is not limited thereto, and the number of the button 25, the direct-type light-emitting element 26, and the light-transmitting elastic body 27 is not The same restrictions, people familiar with the technology can be based on the actual Any equal change design is applied to the application requirements.

In addition, in the preferred embodiment, the illuminated keyboard 2 is a capacitive illuminated keyboard, and the sensing circuit layer 24 is a capacitive sensing circuit layer, and includes an inductive circuit board 241 and is formed on the sensing circuit board 241. The sensing circuit board 242 can be a printed circuit board including a metal insulating substrate (such as a conventional printed circuit board, but not limited thereto), and the sensing circuit pattern 242 includes a plurality of a polarity circuit pattern 2421 and a plurality of second polarity circuit patterns 2422 corresponding to the plurality of first polarity circuit patterns 2421; wherein each of the first polarity circuit patterns 2421 and the corresponding second polarity circuit pattern 2422 are spaced apart The distance, and each of the first polarity circuit patterns 2421 and the corresponding second polarity circuit pattern 2422 form a capacitive button switch 2423. When the sensing circuit layer 24 is energized, each first polarity circuit pattern 2421 and its corresponding An electric field is generated between the second polarity circuit patterns 2422. If one of the electric fields is changed, the corresponding capacitive button switch 2423 is activated. A channel layer 24 generating an output key signal noncontact; Furthermore, sensing circuit 24 further comprises a layer corresponding to the plurality of light transmitting a plurality of circuit layers 243 piercing the elastic body 27.

It is to be noted that, although each of the first polarity circuit patterns 2421 and the corresponding second polarity circuit patterns 2421 are spaced apart in the same horizontal plane, it is not limited thereto, and each first The polarity circuit pattern 2421 and its corresponding second polarity circuit pattern 2422 may also be spaced apart in different horizontal planes, that is, each first polarity circuit pattern 2421 may be disposed in its corresponding second. Above or below the polarity circuit pattern 2422, and a spacer (such as UV glue) may be applied or printed between each first polarity circuit pattern 2421 and its corresponding second polarity circuit pattern 2422, such that each The first polarity circuit pattern 2421 and its corresponding second polarity circuit pattern 2422 are vertically spaced apart.

In addition, the above manner of outputting a button signal by capacitive sensing and The principle of operation is known to those skilled in the art, and will not be further described herein. However, the sensing circuit pattern 242 shown in FIG. 4 is only an embodiment, and is not in the form of a limited sensing circuit pattern. Those skilled in the art are familiar with the present invention. Any equal change design can be made according to the actual application requirements. For example, the sensing circuit layer 24 can also be an electromagnetic sensing circuit layer, such as a sensing circuit layer in the form of a non-contact sensing.

Referring again to FIG. 3, the support plate 23 is used to connect the plurality of buttons 25, and the plurality of buttons 25 are disposed at a position corresponding to the plurality of capacitive button switches 2423, and each button 25 has a key cap 251. a conductor 252 and a connecting member 253; wherein each connecting member 253 is disposed between the supporting plate 23 and the corresponding keycap 251 for connecting the supporting plate 23 and the corresponding key cap 251, and the corresponding key cap 251 is movable up and down with respect to the support plate 23, and each conductor 252 is connected under the corresponding keycap 251 to move with the corresponding keycap 251, and the conductor 252 comprises a conductive material, such as a conductive foam. , metal material, graphite or metal paint, etc., but not limited thereto; in addition, the support plate 23 has a plurality of support plate perforations 231 corresponding to the plurality of buttons 25, and each support plate perforation 231 is used for corresponding A conductor 252 or a corresponding light transmissive elastomer 27 passes therethrough.

In the preferred embodiment, the connecting member 253 is a scissor connecting member, and includes a first frame 2531 and a second frame 2532. The support plate 23 further has a first fixing structure 232 and a second fixing structure 233, and The keycap 251 of each button 25 includes a first keycap fixing structure 2511 and a second keycap fixing structure 2512. The one end 25311 of the first frame 2531 can be connected to the second fixing structure 233, and the other end 25512 can be connected to the first keycap fixing structure 2511, and one end 25321 of the second frame 2532 can be connected to the first fixing structure 232. And the other end 25322 thereof is connectable to the second keycap fixing structure 2512. Of course, the above is only an embodiment, and the connection relationship between the connecting member 253, the support plate 23, and the keycap 251 is not limited thereto.

Moreover, in the preferred embodiment, when any of the keycaps 251 is pressed and moved downward relative to the support plate 23, the first frame 2531 and the second frame 2532 of the corresponding connecting member 253 are changed from the open state to the open state. In the superimposed state, the corresponding conductor 252 moves closer to the sensing circuit pattern 242 as the key cap 251 moves downward, and the electric field between the corresponding first polarity circuit pattern 2421 and the second polarity circuit pattern 2422 A change is generated such that the corresponding capacitive button switch 2423 is activated, causing the sensing circuit layer 24 to generate a corresponding non-contact button signal.

Wherein, in the process that the corresponding conductor 252 moves down the sensing circuit pattern 242 as the any keycap 251 moves downward, the corresponding conductor 252 is pressed to the corresponding transparent elastic body 27, so that the corresponding conductor The light transmitting elastic body 27 provides an elastic force to the keycap 251; and when the keycap 251 is no longer touched, the keycap 251 moves upward relative to the sensing circuit layer 24 in response to the elastic force of the light transmitting elastic body 27. At this time, the first frame 2531 and the second frame 2532 are changed from the overlapping state to the opening and closing state, and the key cap 251 is returned to the original position. In addition, the elastic force provided by the light-transmitting elastic body 27 can not only restore the pressed keycap 251 to the original position, but also provide a feedback feeling of the user touching the keycap 251.

Please refer to FIG. 5 , which is a structural top view of the key cap of the illuminated keyboard shown in FIG. 3 . The keycap 251 has at least one light transmissive area 2513. The light transmissive area 2513 may include a symbol shape, a numerical shape or a letter shape; that is, when the light beam provided by the direct type light emitting element 26 passes through the transparent elastic body 27 After being projected to the corresponding keycap 251, the light beams can be outputted outward from the light transmitting area 2513 of the keycap 251, whereby the user can see the symbol, number or text illuminated on the button 25, thereby overcoming the problem. Difficulties in working in a weak environment.

Generally, the light-transmitting region 2513 is designed at the corner of the keycap 251. However, since the distance between the light-transmitting elastic body 27 and the keycap 251 is too short, the light beam passing through the light-transmitting elastic body 27 cannot be effectively refracted to Light-transmitting area at the corner of the keycap 251 2513, that is, most of the light beam is projected to the middle portion of the keycap 251, so the light is less efficient to use.

Therefore, in the preferred embodiment, the light-transmitting elastic body 27 can be a lens body (such as a convex-concave lens, but not limited thereto), that is, by specifically designing the shape of the light-transmitting elastic body 27. The light-transmitting elastic body 27 has a lens function to change the transmission path of the light beam passing through the light-transmitting elastic body 27, even if the light beam passing through the light-transmitting elastic body 27 can be directed toward the light-transmitting region 2513 of the keycap 251. . Of course, the above is only one embodiment for diffusing the light beam passing through the transparent elastic body 27 to the light-transmitting region 2513 of the keycap 251, and anyone skilled in the art can make any equal variation design according to actual application requirements.

For example, please refer to FIG. 6 , which is a schematic diagram of a preferred embodiment of the light beam passing through the transparent elastic body capable of diffusing to the light-transmitting region of the key cap. 6 shows that the light-transmitting elastic body 27 is further provided with a lens body 271, so that the light beam passes through the lens body 271 after passing through the light-transmitting elastic body 27, thereby changing the transmission path of the light beam, that is, wearing The light beam passing through the lens body 271 can travel in the direction of the light transmitting region of the keycap.

For another example, please refer to FIG. 7 , which is a schematic diagram of another preferred embodiment of the light beam that can pass through the transparent elastic body to the light-transmitting region of the key cap. Figure 7 illustrates that the light transmissive elastomer 27 has a plurality of microstructures 272 thereon so that the beam will change the direction of the path after passing through the plurality of microstructures 272, that is, the beam passing through the microstructures 272 can be directed toward the keycap. Direction of the light-transmitting area. It should be noted that the microstructure 272 shown in FIG. 7 is a V-cut (V-CUT) structure, but is not limited thereto. For example, the microstructure may be formed by the biting pattern structure 273 on the transparent elastic body 27 . On the surface, it is shown in Figure 8. However, the various embodiments in which the light beam passing through the light-transmitting elastic body 27 can be diffused to the light-transmitting region 2513 of the keycap 251 are used for illustrative purposes and are not intended to limit the scope of the present invention.

Please refer to FIG. 9, which is a side view of the structure of the illuminated keyboard of the present invention in a second preferred embodiment. The illuminated keyboard 2A of the preferred embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein. The preferred embodiment is different from the foregoing first preferred embodiment in that the illuminated keyboard 2A further includes a metal base plate 28 disposed under the sensing circuit layer 24 for providing a screen effect and preventing any two phases. The adjacent capacitive push button switch 2423 has an electric field disturbance.

It is specifically noted that those skilled in the art can apply the metal backplane 28 of the second preferred embodiment to the preferred embodiments described below, as will be apparent from the second preferred embodiment.

Please refer to FIG. 10, which is a side view of the structure of the illuminated keyboard of the present invention in a third preferred embodiment. The illuminated keyboard 2B of the preferred embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein. The preferred embodiment differs from the first preferred embodiment in that the preferred embodiment replaces the sensing circuit board 241 in the first preferred embodiment with an inductive film circuit board 244; preferably, the sensing The film wiring board 244 can be made of polyethylene terephthalate (PET) material, polycarbonate (PC) material, thermoplastic polyurethane (TPU) or acrylic plastic (PMMA) material, but Not limited to this.

Referring to FIG. 11 and FIG. 12, FIG. 11 is a side view showing the structure of the illuminated keyboard in the fourth preferred embodiment, and FIG. 12 is a schematic structural view of the sensing circuit layer of the illuminated keyboard shown in FIG. The illuminated keyboard 2C of the preferred embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein. The preferred embodiment is different from the first preferred embodiment in that the light-emitting element driving circuit pattern 221 is formed on the sensing circuit board 241. In detail, the light-emitting element driving circuit pattern 221 is formed on the sensing circuit pattern. Above or below 242, a spacer (such as UV glue) may be applied or printed between the light-emitting element driving circuit pattern 221 and the sensing circuit pattern 242 to drive the circuit pattern 221 and the sensing circuit. The patterns 242 are vertically spaced. Therefore, in the preferred embodiment, the direct-type light-emitting element 26 can be directly disposed on the sensing circuit layer 24. That is, the preferred embodiment does not require the light-emitting element driving circuit board in the first preferred embodiment. 22, and the sensing circuit layer 24C does not need to be broken.

Please refer to FIG. 13, which is a side view of the structure of the illuminated keyboard of the present invention in a fifth preferred embodiment. The illuminated keyboard 2D of the preferred embodiment is substantially similar to that described in the fourth preferred embodiment of the present invention, and will not be further described herein. The preferred embodiment differs from the foregoing fourth preferred embodiment in that the preferred embodiment replaces the sensing circuit board 241 in the fourth preferred embodiment with an inductive film circuit board 245; preferably, the sensing The film circuit board 245 can be made of polyethylene terephthalate (PET) material, polycarbonate (PC) material, thermoplastic polyurethane (TPU) or acrylic plastic (PMMA) material, but Not limited to this.

In particular, in the above embodiments, the keycap 251 and the conductor 252 can be moved up and down with respect to the sensing circuit layers 24, 24C through the combination of the support plate 23 and the scissor-type connecting member 253, but this is only one kind of The key cap 251 and the conductor 252 are moved up and down with respect to the sensing circuit layers 24, 24C. Anyone skilled in the art can make any equal change design according to actual application requirements, and the support plate 23 and the scissor connecting element 253 are not Used to define the necessary components of the case.

For example, please refer to FIG. 14 to FIG. 17. FIG. 14 is a side view showing the structure of the illuminated keyboard according to the sixth preferred embodiment of the present invention, and FIG. 15 is a perspective exploded view of the button of the illuminated keyboard shown in FIG. FIG. 17 is a schematic diagram showing a state in which the button of the illuminated keyboard shown in FIG. 14 is not touched, and FIG. 17 is a schematic view showing a state in which the button of the illuminated keyboard shown in FIG. 14 is touched. The illuminated keyboard 2E of the preferred embodiment is substantially similar to that described in the first preferred embodiment of the present invention, and will not be further described herein.

The preferred embodiment differs from the first preferred embodiment described above in The illuminated keyboard 2E does not include the support plate 23, and a plurality of buttons 29 are directly disposed on the sensing circuit layer 24. Further, each button 29 has a key cap 291, a conductor 292, a key frame 293, and a plurality of elastic arms 294. Each of the elastic arms 294 has a flat rib shape, and includes an inner fixed arm portion 2941, an outer movable arm portion 2942 perpendicular to the inner fixed arm portion 2941, and an inner fixed arm portion 2941 and an outer movable arm portion 2942. The corner transition portion 2943; wherein the key frame 293 has a receiving hole 2931 for the key cap 251 to be fitted therein, and the fixing arm portion 2941 of each elastic arm 294 is fixed to the bottom of the keycap 251, and each elastic arm The outer movable arm portion 2942 of the 294 is exposed from the bottom of the keycap 251 and fixed to the key frame 293, and a portion of the corner transition portion 2943 of each elastic arm 294 is exposed from the outer corner of the bottom of the keycap 251.

Moreover, when any of the keycaps 251 is not touched, the outer movable arm portion 2942 and the angular transition portion 2943 of each elastic arm 294 are not deformed as shown in FIG. 16; and when any of the keycaps 251 is pressed When the outer corner of the bottom of the key cap 251 presses the angular transition portion 2943 of each elastic arm 294, the outer movable arm portion 2942 and the angular transition portion 2943 of each elastic arm 294 are elastically deformed, as shown in FIG. And the conductor 292 will approach the sensing circuit layer 24 with the keycap 251, and the corresponding transparent elastic body 27 is also pressed downward, and the corresponding capacitive button switch is excited to cause the sensing circuit layer 24 to be generated. The corresponding non-contact button signal is output (the capacitive button switch is not shown in the figure, but the operation principle is as described in the first preferred embodiment). Moreover, when any of the keycaps 251 is stopped from being pressed, each of the elastic arms 294 and the corresponding light transmitting elastic body 27 provide an elastic force to return any of the keycaps 251 to the original position.

In particular, the preferred embodiment provides a specific implementation method for moving the keycap and the conductor up and down relative to the sensing circuit layer without using the support plate and the scissor-type connecting component, thereby effectively making the illuminated keyboard thinner. However, it is only an embodiment and is not limited thereto. Also, those skilled in the art can The key structure of the sixth preferred embodiment is applied to the first to fifth preferred embodiments described above in the sixth preferred embodiment.

Moreover, more preferably, the surface of the light-transmitting elastic body in each of the above embodiments is further provided with a light-shielding member, such as a light-shielding ink, to prevent the light beam provided by the direct-type light-emitting element from being directed toward both sides of the light-transmitting elastic body or not. The direction of the light source needs to be lost. In detail, please refer to FIG. 18 and FIG. 19. FIG. 18 is a schematic diagram showing the concept of forming a light-shielding member on a preferred light-transmitting elastic body, and FIG. 19 is a schematic view showing the concept of forming a light-shielding member on another preferred light-transmitting elastic body. 18 shows that the light-shielding member 20 is formed on the outer surface of the light-transmitting elastic body 27, so that the light beam L provided by the direct-type light-emitting element 26 cannot pass through the light-transmitting elastic body 27, and only the light-shielding member 20 is not formed. The area for the light beam L passes through; and FIG. 19 shows that the light-shielding member 20 is formed on the inner surface of the light-transmitting elastic body 27, and therefore, the light beam L provided by the direct-type light-emitting element 26 cannot pass through the light-transmitting elastic body 27, and Only the region where the light shielding member 20 is not formed is provided for the light beam L to pass.

According to the above description, the light-emitting keyboard design of the present invention directly sets the direct-type light-emitting element under the button, and adopts a light-transmitting design for the elastic body for returning the key cap to the original position and providing the user's hand feeling, so that the direct type The light beam emitted by the illuminating element can be directly projected to the button after passing through the transparent elastic body, thereby effectively improving the use efficiency of the light; in addition, since the illuminating keyboard of the present invention adopts a sensing circuit layer of a non-contact sensing form, the direct type is The light-emitting element and the light-transmitting elastic body are directly disposed under the button, and do not affect the operation of the sensing circuit layer, and also improve the defect that the keyboard of the conventional non-contact sensing form does not have the light-emitting function, which is an industrial applicability. invention.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Therefore, any equivalent changes or modifications made without departing from the spirit of the present invention should be included in the present invention. Within the scope of the patent application.

2‧‧‧Lighting keyboard

21‧‧‧Base

22‧‧‧Lighting element drive circuit board

23‧‧‧Support board

24‧‧‧Sensor circuit layer

25‧‧‧ buttons

26‧‧‧Direct light-emitting elements

27‧‧‧Translucent elastomer

231‧‧‧ Support plate perforation

232‧‧‧First fixed structure

233‧‧‧Second fixed structure

241‧‧‧Sensor board

243‧‧‧ Circuit layer perforation

251‧‧‧Key Cap

252‧‧‧Conductor

253‧‧‧Connecting components

2511‧‧‧First key cap fixing structure

2512‧‧‧Second keycap fixing structure

2531‧‧‧ first frame

2532‧‧‧ second frame

25311‧‧‧One of the first frames

25312‧‧‧The other end of the first frame

25321‧‧‧One of the second frames

25322‧‧‧The other end of the second framework

Claims (21)

An illuminated keyboard includes: a sensing circuit layer for generating at least one non-contact button signal; at least one button disposed above the sensing circuit layer for being pressed to cause the sensing circuit layer to generate the at least one non- a touch-type button signal; at least a light-emitting element is disposed under the at least one button for providing a light beam; and at least one light-transmitting elastic body is disposed on the at least one button and the at least one-type light-emitting element Providing an elastic force to the at least one button; wherein the at least the following light-emitting element is disposed in the light-transmitting elastic body, so that the light beam is projected through the at least one transparent elastic body to the at least one button. The illuminating keyboard of claim 1, wherein the sensing circuit layer comprises a sensing circuit pattern and an inductive circuit board, and the sensing circuit pattern is formed on the sensing circuit board. The illuminating keyboard of claim 2, wherein the sensing circuit layer further comprises a light emitting element driving circuit pattern, and the light emitting element driving circuit pattern is formed on the sensing circuit board for driving the at least all the way down The light-emitting element provides the light beam. The illuminating keyboard of claim 2, further comprising a illuminating element driving circuit board and a illuminating element driving circuit pattern, wherein the illuminating element driving circuit pattern is formed on the illuminating element driving circuit board for driving the At least always The light emitting element provides the light beam; wherein the sensing circuit board is located between the light emitting element driving circuit board and the at least one button. The illuminating keyboard of claim 4, wherein the sensing circuit layer has at least one circuit layer perforation corresponding to the at least one light transmissive elastomer. The illuminating keyboard of claim 2, wherein the sensing circuit pattern comprises at least one first polarity circuit case and at least one second polarity circuit pattern, and when the sensing circuit layer is energized, the at least one An electric field is generated between the one polarity circuit case and the at least one second polarity circuit pattern; wherein when the at least one button is pressed to approach the sensing circuit pattern, the electric field changes to cause the sensing circuit layer to generate the at least A non-contact button signal. The illuminating keyboard of claim 1, wherein the sensing circuit layer comprises a sensing circuit pattern and an inductive film circuit board, and the sensing circuit pattern is formed on the sensing film circuit board. The illuminating keyboard of claim 7, wherein the sensing circuit layer further comprises a light emitting element driving circuit pattern, and the light emitting element driving circuit pattern is formed on the sensing film circuit board for driving the at least one The light-emitting element of the following type provides the light beam. The illuminating keyboard of the seventh aspect of the invention, further comprising a illuminating element driving circuit board and a illuminating element driving circuit pattern, wherein the illuminating element driving circuit pattern is formed on the illuminating element driving circuit board for driving the The light beam is provided by at least the following light-emitting element; wherein the light-sensitive element circuit board is located between the light-emitting element driving circuit board and the at least one button. The illuminating keyboard of claim 9, wherein the sensing circuit layer has at least one circuit layer perforation corresponding to the at least one light transmissive elastomer. The illuminating keyboard of claim 7, wherein the sensing film circuit board is made of polyethylene terephthalate (PET), polycarbonate (PC), thermoplastic polyurethane (TPU). ) or made of acrylic plastic (PMMA) material. The illuminating keyboard of claim 7, wherein the sensing circuit pattern comprises at least one first polarity circuit case and at least one second polarity circuit pattern, and when the sensing circuit layer is energized, the at least one An electric field is generated between the one polarity circuit case and the at least one second polarity circuit pattern; wherein when the at least one button is pressed to approach the sensing circuit pattern, the electric field changes to cause the sensing circuit layer to generate the at least A non-contact push button switch signal. The illuminating keyboard of claim 1, wherein the at least one button comprises: a keycap exposed to the outside of the illuminating keyboard; and a conductor disposed on the keycap and the at least one transparent elastic body And moving with the keycap; wherein, when the keycap is pressed, the at least one light transmissive elastomer is compressed by the conductor, and the guiding system is brought down to the sensing circuit layer to make the sensing circuit layer The at least one non-contact button signal is generated. The illuminating keyboard of claim 13, wherein the guiding system comprises a conductive foam, a metal material or a metallic lacquer. The illuminating keyboard of claim 13 further comprising a support plate disposed between the sensing circuit layer and the at least one button for the at least one button The key is connected to the support plate, and the support plate has at least one support plate perforation for the conductor or the at least one transparent elastic body to be perforated through the at least one support plate. The illuminating keyboard of claim 15, wherein the at least one button further comprises a connecting component connected between the supporting plate and the keycap and moving the keycap relative to the supporting plate. The illuminating keyboard of claim 16, wherein the connecting element is a scissor connecting element. The illuminating keyboard of claim 1, wherein the at least one transparent elastic body is provided with a lens body for changing a transmission path of the light beam passing through the at least one transparent elastic body. The illuminating keyboard of claim 1, wherein the at least one light transmissive elastic system is a lens body for changing a transmission path of the light beam passing through the at least one transparent elastic body. The illuminating keyboard of claim 1, further comprising a shading element formed on a surface of the at least one light transmissive elastomer. The illuminating keyboard of claim 20, wherein the shading element is a shading ink.