TWM467934U - Thin illuminating keyboard - Google Patents

Abstract

A thin illuminating keyboard includes a light emitting unit, a circuit board, a base plate, a backlight module and a holding structure. The circuit board is coupled to the light emitting unit and transmitting a signal for driving the light emitting unit to emit light. A recess portion and a first opening are formed on the base plate. The recess portion communicates with the first opening. The backlight module is disposed on a side of the base plate and for guiding the light emitted from the light emitting unit. The holding structure with two sides facing the recess portion and the first opening is formed inside the recess portion and for holding the circuit board, such that the circuit board is contained inside the recess portion, wherein the light emitting unit is embedded into the backlight module via the first opening when the holding structure holds the circuit board.

Description

Thin, illuminated keyboard

This creation relates to an illuminated keyboard, and more particularly to a thin illuminated keyboard.

In terms of current personal computer usage habits, the keyboard is one of the indispensable input devices for entering text, symbols or numbers. Recently, with the improvement of consumer visual appeal, a illuminating keyboard has become a new development direction in the industry. In general, the illuminated keyboard uses an edge-lit backlight module as its light source, and the light-emitting diode and the flexible circuit board for emitting light are attached to the bottom plate and embedded in the backlight module on the side of the light guide plate. At this point, the light emitted by the light-emitting diode can be incident on the light guide plate from the side of the light guide plate and projected toward the key cap by the guide of the light guide plate. However, since the light-emitting diode and the flexible circuit board have a certain thickness, the above design may cause the thickness of the illuminated keyboard to be adjacent to the light-emitting diode and its flexible circuit board (ie, the light source), thereby affecting the illuminated keyboard. Appearance.

Therefore, the present invention provides a thinned illuminated keyboard that can be reduced in thickness adjacent to the light source to solve the above problems.

In order to achieve the above object, the present invention discloses a thinned illuminated keyboard comprising a light emitting unit, a circuit board, a bottom plate, a backlight module and a load bearing structure. The circuit board is coupled to the light emitting unit and transmits and receives an electrical signal of the light emitting unit. The bottom plate is formed with a recessed portion and a first opening. The recessed portion is in communication with the first opening, and the backlight module is disposed on the One side of the bottom plate is used to guide the light emitted by the light emitting unit, and the bearing structure is formed in the concave portion And the two sides face the recess and the first opening respectively, the carrying structure is configured to carry the circuit board, so that the circuit board is received in the recess, wherein when the carrying structure carries the circuit board, the The light emitting unit is embedded in the backlight module through the first opening.

According to one embodiment of the present invention, the present disclosure further discloses that the bottom plate is further formed with a second opening connected to the recessed portion, and the second opening and the first opening are respectively located on opposite sides of the supporting structure, The circuit board includes a transmission line portion for transmitting the electrical signal, wherein when the carrier structure carries the circuit board, the transmission line portion penetrates the bottom plate through the second opening.

According to one embodiment of the present invention, the present invention further discloses a thinned illuminated keyboard comprising a circuit board, a light emitting unit, a bottom plate, a backlight module and a load bearing structure. The circuit board transmits an electrical signal, and the light emitting unit is coupled to the lower surface of the circuit board, and the electrical signal can drive the light emitting unit to emit light. The bottom plate has a recess and a first opening, and the recess communicates with the first opening. The backlight module is disposed under the bottom plate, and the backlight module is configured to guide light emitted by the light emitting unit. The carrying structure is formed in the recessed portion, wherein when the circuit board is placed on the upper surface of the carrying structure, the light emitting unit is embedded in the backlight module through the first opening.

In summary, the present invention utilizes the recessed portion to accommodate the circuit board when the carrying structure carries the circuit board, thereby maintaining its appearance integrity and overall thickness, and the present invention further utilizes the first opening and the second opening on the bottom plate to make the light emitting unit And the transmission line portion passes when the circuit board is mounted on the load-bearing structure, whereby the light source module (ie, the light-emitting unit and the circuit board) of the illuminated keyboard of the present invention can be embedded in the bottom plate and the backlight module without additional accommodation space. The recessed portion, the first opening, the second opening and the carrying structure of the present invention can prevent the thickness of the illuminated keyboard from being adjacent to the light emitting unit and the circuit board thereof (ie, the light source), thereby maintaining the overall thickness of the illuminated keyboard, thereby further In response to the thinning of the illuminated keyboard Exhibition trend. The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of the embodiments of the invention.

3‧‧‧Lighting keyboard

30‧‧‧floor

301‧‧‧Second chute

303‧‧‧Second card slot

32‧‧‧ button

34‧‧‧Backlight module

36‧‧‧Key Cap

361‧‧‧First chute

363‧‧‧First card slot

38‧‧‧Flexible parts

381‧‧‧Trigger

40‧‧‧Thin board

401‧‧‧ switch

42‧‧‧ Lifting support mechanism

421‧‧‧First support

4210‧‧‧First sliding part

4212‧‧‧First pivotal

423‧‧‧second support

4230‧‧‧Second sliding part

4232‧‧‧Second pivotal

44‧‧‧Lighting unit

46‧‧‧ boards

461‧‧‧Transmission Line Department

48‧‧‧Light guide

481‧‧‧ third opening

483‧‧‧fourth opening

50‧‧‧reflector

501‧‧‧ fifth opening

52‧‧‧Depression

54‧‧‧ first opening

56‧‧‧second opening

58‧‧‧Loading structure

FIG. 1 is a schematic view showing the appearance of components of the illuminated keyboard of the present embodiment.

FIG. 2 is a cross-sectional view showing the components of the illuminated keyboard of the present embodiment.

Fig. 3 is a schematic view showing the components of the bottom plate of the creative embodiment.

Fig. 4 is a schematic view showing the components of the light guide plate of the creation embodiment.

Fig. 5 is a schematic view showing the components of the reflecting plate of the creation embodiment.

The directional terms mentioned in the following embodiments, such as up, down, left, right, front or back, etc., are only directions referring to the additional drawings. Therefore, the directional terminology used is used to illustrate that it is not intended to limit the creation. Please refer to FIG. 1 , which is a schematic diagram of the appearance of the components of the illuminated keyboard 3 according to the embodiment of the present invention. As shown in FIG. 1 , the illuminated keyboard 3 includes a bottom plate 30 , a plurality of buttons 32 , and a backlight module 34 . The backlight module 34 is disposed on one side of the bottom plate 30 (for example, the backlight module 34 can be disposed under the bottom plate 30) for guiding light to the outside of the bottom plate 30, so that the illuminated keyboard 3 can be illuminated during use, thereby improving the use. The visual perception when using the illuminated keyboard 3 is used. A plurality of buttons 32 are disposed on the other side of the bottom plate 30 (for example, a plurality of buttons 32 can be disposed above the bottom plate 30) for the user to press, thereby performing operations desired by the user, such as inputting characters, symbols or numbers. .

Please refer to FIG. 2, which is a cross-sectional view of the components of the illuminated keyboard 3 of the present embodiment. As shown in FIG. 2, each button 32 of the illuminated keyboard 3 includes a key cap 36 and an elastic member 38. The key cap 36 is disposed on the other side of the bottom plate 30, and the elastic member 38 is disposed on the bottom plate 30 and the key cap. Between 36. When the user presses the button 32, the key cap 36 moves toward the bottom plate 30 and presses The elastic member 38 is reduced. At this time, the elastic member 38 stores an elastic potential energy due to elastic deformation. When the user completes the pressing, the user's finger leaves the keycap 36, and the elastic member 38 can release the elastic position energy to apply the elastic returning force of the keycap 36, thereby driving the keycap 36 to be reset. In this embodiment, the elastic member 38 can be a rubber dome, but is not limited thereto. For example, the elastic member 38 can also be a metal spring. As for which of the above designs is used, it depends on actual needs.

In addition, the illuminated keyboard 3 further includes a thin circuit board 40 disposed on the other side of the bottom plate 30 opposite to the backlight module 34. As shown in FIG. 2, the plurality of buttons 32 respectively include a switch 401 coupled to the thin circuit board 40, wherein the key cap 36 is located at the corresponding switch 401 above the thin circuit board 40. In addition, the elastic member 38 has a trigger portion 381 corresponding to the switch 401. When the user presses the button 32, the elastic member 38 is compressed to cause the trigger portion 381 to press the switch 401 of the thin circuit board 40, so that the key cap 36 is used to trigger the switch 401 when pressed, thereby performing a corresponding button instruction. In this embodiment, the thin circuit board 40 can be a thin film circuit board, but is not limited thereto. For example, the thin circuit board 40 can also be a key circuit board generally having a trigger switch. As for which of the above designs is used, it depends on actual needs.

In addition, each button 32 further includes a lifting support mechanism 42 disposed between the bottom plate 30 and the key cap 36, and the key cap 36 is mounted on the lifting support mechanism 42. When the user presses the button 32, the lifting support mechanism 42 can evenly distribute the pressing force of the user to the key cap 36, so that the key cap 36 can smoothly move downward relative to the bottom plate 30 to stabilize the trigger switch 401 and execute the button. instruction. When the keycap 36 is in the above-described resetting process, the lifting support mechanism 42 can equally distribute the elastic restoring force generated by the elastic member 38 to the keycap 36 so that the keycap 36 can smoothly move upward relative to the bottom plate 30. In summary, when the keycap 36 is raised and lowered relative to the bottom plate 30, the lifting support mechanism 42 can be used to support the keycap 36 so that the keycap 36 smoothly moves up and down relative to the bottom plate 30.

Further, the key cap 36 is formed with a first sliding slot 361 and a first slot 363. The bottom plate 30 is formed with a second sliding slot 301 and a second locking slot 303. The lifting support mechanism 42 includes a first supporting member 421 and a second supporting member 423. The second supporting member 423 is pivotally connected to the first supporting member. Piece 421. The first support member 421 includes a first sliding portion 4210 and a first pivot portion 4212. The first sliding portion 4210 is slidably disposed in the first sliding slot 361 , and the first pivoting portion 4212 is rotatably pivoted in the second locking slot 303 . The second support member 423 includes a second sliding portion 4230 and a second pivot portion 4232. The second sliding portion 4230 is slidably disposed in the second sliding slot 301 , and the second pivoting portion 4232 is rotatably pivoted in the first locking slot 363 . As described above, when the key cap 36 is pressed or the key cap 36 is driven upward by the elastic member 38, the key cap 36 can be pressed by the key cap 36 by the structural design of the lifting support mechanism 42 described above. During the resetting process, the bottom plate 30 is horizontally and smoothly raised and lowered relative to the bottom plate 30.

As shown in FIG. 1 and FIG. 2, the illuminated keyboard 3 further includes a light emitting unit 44 and a circuit board 46 coupled to the light emitting unit 44. The circuit board 46 can be used to transmit an electrical signal, and the electrical signal system can be used. The light emitting unit 44 is driven to emit light. In this embodiment, the circuit board 46 can be a flexible printed circuit board (FPC), and the light emitting unit 44 can be coupled to the lower surface of the circuit board 46. In addition, the backlight module 34 includes a light guide plate 48 disposed on the side of the bottom plate 30, and the circuit board 46 includes a transmission line portion 461 for connecting to a host module (not shown). So that the transmission line portion 461 can be used to transmit the electrical signal. In this way, the host module can supply power to the circuit board 46, so that the circuit board 46 drives the light-emitting unit 44 to emit light.

In this embodiment, the light-emitting unit 44 is disposed on the side of the light guide plate 48, that is, the backlight module 34 of the present invention can be a one-side light backlight module. In use, the light-emitting unit 44 is driven by the circuit board 46 to emit light, and the light can be incident into the light guide plate 48 from the side of the light guide plate 48. Further, the light guide plate 48 of the backlight module 34 can be used to guide the light-emitting unit. The light emitted by the 44 is outside the bottom plate 30, whereby the light can be projected to the keycap 36, such that the light emitting unit 44 and the backlight module 34 are The light source required for the backlight module 34 to emit light can be provided to cause the button 32 to generate a visual effect of illumination, thereby improving the visual perception of the illuminated keyboard 3 during use.

In practice, the backlight module 34 can include only one or more light emitting units 44 depending on actual needs. That is to say, as long as it is a structural design including more than one light-emitting unit 44, it is within the scope of protection of the present invention. In addition, the backlight module 34 further includes a reflective plate 50 disposed on the side of the bottom plate 30. In addition, the reflector 50 is located on the bottom side of the light guide plate 48 and covers the light guide plate 48. Therefore, when the light guide plate 48 guides the light emitted by the light-emitting unit 44, part of the light may pass through the light guide plate from the bottom side of the light guide plate 48. 48. At this time, the reflecting plate 50 can be used to reflect the light emitted from the bottom side of the light guiding plate 48 to project outside the bottom plate 30, so as to achieve the effect that the light is more concentrated toward the keycap 36.

Please refer to FIG. 2 to FIG. 5 , FIG. 3 is a schematic diagram of components of the bottom plate 30 of the present embodiment, FIG. 4 is a schematic diagram of components of the light guide plate 48 according to the creative embodiment, and FIG. 5 is a reflection plate 50 of the present embodiment. Schematic diagram of the components. As shown in FIG. 2 to FIG. 5, the bottom plate 30 is formed with a recess 52, a first opening 54, and a second opening 56. The first opening 54 communicates with the recess 52, and the second opening 56 and the recess 52 connected. In addition, the illuminated keyboard 3 further includes a carrying structure 58 for carrying the circuit board 46. The carrying structure 58 is formed in the recess 52 and faces the recess 52 and the first opening 54 on both sides, respectively, and the first opening 54 The second openings 56 are located on opposite sides of the load-bearing structure 58, respectively. In this embodiment, the bottom plate 30 and the load-bearing structure 58 may be integrally formed, and the load-bearing structure 58 may be formed by partially stamping and thinning the bottom plate 30, that is, the load-bearing structure 58 is one side of the bottom plate 30 in a stamping and thinning manner. One of the formed concave and thin structures.

In this embodiment, the depth of the recess 52 may be greater than the thickness of the circuit board 46. Therefore, when the circuit board 46 is mounted on the load-bearing structure 58, the circuit board 46 can be received in the recess 52 and the upper edge of the circuit board 46 is not Will protrude above the bottom plate 30, that is, by the depth of the recess 52 on the bottom plate 30 The structure is designed to be greater than the thickness of the circuit board 46. When the circuit board 46 is mounted in the recess 52 and disposed on the upper surface of the load-bearing structure 58, the upper edge of the circuit board 46 does not protrude from the bottom plate 30. That is, the depth of the recess 52 on the bottom plate 30 can completely accommodate the circuit board 46 when the carrying structure 58 carries the circuit board 46, thereby maintaining the appearance integrity and overall thickness of the bottom plate 30. In addition, when the circuit board 46 is mounted on the carrying structure 58 from above the bottom plate 30, the light emitting unit 44 can be embedded in the backlight module 34 through the first opening 54 on the bottom plate 30, and the transmission line portion of the circuit board 46. The 461 can pass down through the bottom plate 30 through the second opening 56 in the bottom plate 30.

In other words, the first opening 54 and the second opening 56 on the bottom plate 30 are respectively used to provide a passage for the light emitting unit 44 and the transmission line portion 461 to be mounted on the carrying structure 58 from the top to the bottom of the circuit board 46. by. As a result, the circuit board 46 can be mounted on the carrying structure 58 and located in the recessed portion 52. The light emitting unit 44 can also be embedded in the backlight module 34 through the first opening 54 and located next to the backlight module 34. side. Therefore, the light-emitting unit 44 does not need an additional accommodating space because it is embedded in the backlight module 34. That is, the present invention can be used by the recess 52 on the bottom plate 30, the first opening 54, the second opening 56, and the carrying structure 58. The light source of the illuminating keyboard 3 (ie, the illuminating unit 44 and the circuit board 46) is embedded in the bottom plate 30 and the backlight module 34 without additional accommodating space. That is, the depressed portion 52, the first opening 54, the second opening 56, and the carrying structure 58 of the present invention can avoid an increase in the thickness of the illuminated keyboard 3 adjacent to the light emitting unit 44 and its circuit board 46 (ie, at the light source). The overall thickness of the illuminated keyboard 3 is maintained, which in turn responds to the trend of thinning the illuminated keyboard 3.

As shown in FIG. 2 to FIG. 5, the light guide plate 48 has a third opening 481 and a fourth opening 483, and the reflective plate 50 has a fifth opening 501 therein. The third opening 481 corresponds to the first opening 54 on the bottom plate 30, the fourth opening 483 corresponds to the second opening 56 on the bottom plate 30, and the fifth opening 501 corresponds to the fourth opening 483 on the light guide plate 48. When the carrying structure 58 carries the circuit board 46, the light emitting unit 44 can be embedded in the third opening of the light guiding plate 48 through the first opening 54 on the bottom plate 30. In the port 481, the light-emitting unit 44 can be embedded in the backlight module 34 (as shown in FIG. 2). On the other hand, when the carrying structure 58 carries the circuit board 46, the transmission line portion 461 of the circuit board 46 can pass down through the bottom plate 30 through the second opening 56 in the bottom plate 30, and then pass through the fourth on the light guide plate 48. The opening 483 penetrates the light guide plate 48, and finally passes through the fifth opening 501 of the reflector 50 to penetrate the reflector 50, whereby the transmission line portion 461 can pass through the reflector 50 and be connected to the host module, so that The host module can supply power to the circuit board 46, thereby causing the circuit board 46 to drive the light emitting unit 44 to emit light.

Compared with the prior art, the present invention utilizes the recessed portion to accommodate the circuit board when the carrying structure carries the circuit board, thereby maintaining its appearance integrity and overall thickness, and the present invention further utilizes the first opening and the second opening on the bottom plate to cause illumination. The unit and the transmission line portion pass when the circuit board is mounted on the carrying structure, whereby the light source module (ie, the light emitting unit and the circuit board) of the illuminated illuminated keyboard can be embedded in the bottom plate and the backlight module without additional accommodation. The space, that is, the depressed portion, the first opening, the second opening, and the carrying structure of the present invention can prevent the thickness of the illuminated keyboard from being adjacent to the light emitting unit and its circuit board (ie, the light source), thereby maintaining the overall thickness of the illuminated keyboard. In response to the development trend of thinning the illuminated keyboard.

The above descriptions are only preferred embodiments of the present invention, and all changes and modifications made by the scope of the patent application of the present invention should be covered by the present invention.

3‧‧‧Lighting keyboard

30‧‧‧floor

301‧‧‧Second chute

303‧‧‧Second card slot

32‧‧‧ button

34‧‧‧Backlight module

36‧‧‧Key Cap

361‧‧‧First chute

363‧‧‧First card slot

38‧‧‧Flexible parts

381‧‧‧Trigger

40‧‧‧Thin board

401‧‧‧ switch

42‧‧‧ Lifting support mechanism

421‧‧‧First support

4210‧‧‧First sliding part

4212‧‧‧First pivotal

423‧‧‧second support

4230‧‧‧Second sliding part

4232‧‧‧Second pivotal

44‧‧‧Lighting unit

46‧‧‧ boards

461‧‧‧Transmission Line Department

48‧‧‧Light guide

481‧‧‧ third opening

483‧‧‧fourth opening

50‧‧‧reflector

501‧‧‧ fifth opening

52‧‧‧Depression

54‧‧‧ first opening

56‧‧‧second opening

58‧‧‧Loading structure

Claims (17)

A light-emitting keyboard comprising: a light-emitting unit; a circuit board coupled to the light-emitting unit, the circuit board transmitting and driving an electrical signal of the light-emitting unit; and a bottom plate having a recessed portion formed thereon a first opening, the recessed portion is in communication with the first opening; a backlight module disposed on one side of the bottom plate, the backlight module is configured to guide light emitted by the light emitting unit; and a load bearing structure Forming in the recessed portion and facing the recessed portion and the first opening on both sides thereof, the carrying structure is configured to carry the circuit board, so that the circuit board is received in the recessed portion; wherein when the supporting structure is carried In the circuit board, the light emitting unit is embedded in the backlight module through the first opening. The illuminating keyboard of claim 1, wherein the bottom plate is further formed with a second opening connected to the recess, the second opening and the first opening are respectively located on opposite sides of the supporting structure, the circuit board A transmission line portion is included, the transmission line portion being transmitted for the electrical signal, wherein when the carrier structure carries the circuit board, the transmission line portion penetrates the bottom plate through the second opening. The illuminating keyboard of claim 1, wherein the backlight module comprises: a light guide plate disposed on the side of the bottom plate, the light guide plate is configured to guide the light emitted by the light emitting unit to the outside of the bottom plate, wherein The light-emitting unit is embedded in the backlight module and located on the side of the light guide plate when the load-bearing structure carries the circuit board; and a reflective plate is disposed on the side of the bottom plate and covers the guide a light plate for reflecting light emitted by the light guide plate and projected toward the reflective plate to the bottom plate. The illuminated keyboard of claim 1, further comprising: a thin circuit board disposed on the other side of the backplane relative to the backlight module; and a plurality of buttons respectively including: a switch coupled to the thin circuit board; a key cap located at the thin type Above the board corresponds to the switch, which is used to trigger the switch when pressed. The illuminated keyboard of claim 4, wherein each of the buttons further comprises: an elastic member disposed between the bottom plate and the key cap, the elastic member for driving the key cap to be reset. The illuminating keyboard of claim 4, wherein each of the buttons further comprises: a lifting support mechanism disposed between the bottom plate and the keycap, the lifting support mechanism for supporting the keycap to move up and down relative to the bottom plate. The illuminating keyboard of claim 6, wherein the keycap is formed with a first sliding slot and a first slot, the second sliding slot and a second slot are formed on the bottom plate, and the lifting support mechanism comprises The first support member includes a first sliding portion and a first pivot portion. The first sliding portion is slidably disposed in the first sliding slot, and the first pivoting portion is pivotably pivoted Connected to the second card slot; and a second support member pivotally connected to the first support member, the second support member includes a second sliding portion and a second pivot portion, the second sliding portion The second pivoting portion is rotatably pivotally connected to the first card slot. The illuminated keyboard of claim 1, wherein the bottom plate and the load-bearing structure are integrally formed. The illuminated keyboard of claim 1, wherein the carrying structure is partially stamped by the bottom plate form. The illuminating keyboard of claim 1, wherein the recessed portion has a depth greater than the thickness of the circuit board, and when the circuit board is mounted in the recessed portion and disposed on the upper surface of the carrying structure, the upper edge of the circuit does not protrude from the Above the bottom plate. The illuminating keyboard of claim 2, wherein the backlight module comprises a light guide plate having a third opening and a fourth opening, the third opening corresponding to the first opening, the fourth opening Corresponding to the second opening, wherein when the carrying structure carries the circuit board, the light emitting unit is embedded in the third opening through the first opening, and the transmission line portion penetrates the light guide plate through the fourth opening. The illuminating keyboard of claim 11, wherein the backlight module further comprises a reflector having a fifth opening, the fifth opening corresponding to the fourth opening, wherein the carrying structure carries the circuit In the case of the board, the transmission line portion penetrates the reflector through the fifth opening. A thin-type illuminated keyboard comprising: a circuit board that transmits an electrical signal; an illumination unit coupled to the lower surface of the circuit board, the electrical signal driving the illumination unit to emit light; and a bottom plate having a recessed portion and a first opening, the recessed portion being in communication with the first opening; a backlight module disposed under the bottom plate, the backlight module for guiding light emitted by the light emitting unit; and a bearing The structure is formed in the recessed portion; wherein when the circuit board is placed on the upper surface of the carrying structure, the light emitting unit is embedded in the backlight module through the first opening. The illuminating keyboard of claim 13, wherein the recessed portion has a depth greater than the thickness of the circuit board, and when the circuit board is mounted in the recessed portion and disposed on the upper surface of the carrying structure, the upper edge of the circuit does not protrude from the Above the bottom plate. The illuminating keyboard of claim 13, wherein the bottom plate is further formed with a second opening connected to the recess, the second opening and the first opening are respectively located on opposite sides of the supporting structure, the circuit board A transmission line portion is included, the transmission line portion being transmissive for the electrical signal, wherein when the circuit board is placed on the upper surface of the load-bearing structure, the transmission line portion passes through the second opening and penetrates the bottom plate. The illuminating keyboard of claim 15, wherein the backlight module comprises a light guide plate having a third opening and a fourth opening, the third opening corresponding to the first opening, the fourth opening Corresponding to the second opening, wherein when the carrying structure carries the circuit board, the light emitting unit is embedded in the third opening through the first opening, and the transmission line portion penetrates the light guide plate through the fourth opening. The illuminating keyboard of claim 16, wherein the backlight module further comprises a reflector having a fifth opening, the fifth opening corresponding to the fourth opening, wherein the carrying structure carries the circuit In the case of the board, the transmission line portion penetrates the reflector through the fifth opening.