TW201807730A - Luminous keyboard - Google Patents

Abstract

A luminous keyboard is provided, including a keyboard module and a luminous module. The keyboard module has a light-penetrable portion and a keyboard base. The light-penetrable portion is disposed on the keyboard base. The luminous module includes a board, a boosting circuit and a plasma tube. The boosting circuit is disposed on the board. The plasma tube has a luminous main body and two electrodes. At least part of the luminous module corresponds to the light-penetrable portion. The two electrodes are disposed on the luminous main body and electrically connected to two power output portions.

Description

Illuminated keyboard

The invention relates to an illuminated keyboard.

The traditional keyboard is only a simple input device. As the computer usage rate increases, the traditional keyboard has gradually failed to meet the needs of consumers. Therefore, the operator further develops a keyboard with a light source, so that in a poor light environment, the user can still recognize the character or function of the keycap, such as the illuminated keyboard disclosed in TWI508119.

However, in such a light-emitting keyboard, most of the light-emitting diodes are used, and it can be understood that the light-emitting diode is a light-emitting element with high luminous efficiency, and the light is more likely to be glaring when the light is directly directed to the eye. There is discomfort. Therefore, most of them use the backlight module to use, but in this way, the surface of the keycap cannot be clearly seen, or the keyboard or the keycap itself needs to adopt a more complicated structure to guide light and soften the light, resulting in The processing is complicated and the cost is increased, and there are drawbacks that need to be improved.

Therefore, it is necessary to provide a novel and progressive illuminated keyboard to solve the above problems.

The main object of the present invention is to provide an illuminated keyboard capable of directly illuminating the key cap so that the user can clearly view it without causing discomfort to the eyes such as glare. In addition, in the production process, it is not necessary to perform complicated light guiding, softening and other optical path design or processing on the keyboard, which can reduce the production difficulty and reduce the complexity of the keyboard structure.

To achieve the above objective, the present invention provides an illuminated keyboard, including a keyboard module and a lighting module. The keyboard module is provided with a light transmissive portion and a keyboard base. The light transmissive portion is disposed on the keyboard base. The keyboard base is provided with a body, a cover body, a circuit substrate and a plurality of key caps. An inner space is defined in the base body, and the circuit board is electrically connected to a first power source and disposed in the inner space, and each of the key caps is reciprocally movable to the cover body. And the key caps are for external selection to press and move to activate the portion of the circuit substrate. The illuminating module is disposed on the keyboard base. The illuminating module comprises a substrate, a boosting circuit and a plasma tube. The boosting circuit is disposed on the substrate, and the boosting circuit comprises at least one conductive line and a plurality of electronic components. The at least one conductive circuit is electrically connected to the at least one conductive line, the at least one conductive line includes a power input portion and two power output portions, and the power input portion is electrically connected to a second power source, the plasma tube An illuminating body and a second electrode are disposed, and at least part of the illuminating body is corresponding to the permeable portion. The two electrodes are disposed on the illuminating body and electrically connected to the two power output portions.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Please refer to FIG. 1 to FIG. 6 , which illustrate an embodiment of the present invention. The illuminated keyboard of the present invention comprises: a keyboard module 1 and a lighting module 4 .

The keyboard module 1 is provided with a light transmissive portion 2 and a keyboard base 3 . The light transmissive portion 2 is disposed on the keyboard base 3 . The keyboard base 3 is provided with a body 31 , a cover 32 , and a circuit substrate 33 . And a plurality of key caps 34 , the cover body 32 is disposed on the base body 31 and defines an internal space 35 . The circuit board 33 is electrically connected to a first power source and disposed in the internal space 35 . Each of the keycaps 34 is reciprocally movable to the cover body 32, and the keycaps 34 are externally selected to be pressed against the movement to actuate portions of the circuit substrate 33.

The illuminating module 4 is disposed on the keyboard base 3 and includes a substrate 41, a boosting circuit 42 and a plasma tube 6. The boosting circuit 42 is disposed on the substrate 41. The boosting circuit 42 includes at least one conductive line. And a plurality of electronic components 44 electrically connected to the at least one conductive line, the at least one conductive line comprising a power input portion 431 and two power output portions 432, wherein the power input portion 431 is provided with a second power source Electrically connected, the plasma tube 6 is provided with a light-emitting body 61 and two electrodes 62. At least a portion of the light-emitting body 61 corresponds to the light-transmitting portion 2, and the two electrodes 62 are disposed on the light-emitting body 61 and respectively The two power supply output units 432 are electrically connected.

More specifically, the conductive circuit is embedded in the substrate 41. The substrate 41 and the conductive lines form a printed circuit board. Of course, the conductive lines may be disposed on the substrate 41 in other forms. The booster circuit 42 converts the low-voltage direct current input from the power input unit 431 into high-voltage alternating current, and supplies the same to the plasma tube 6 via the two power output units 432. Of course, the boost circuit 42 can also convert low voltage direct current into high voltage pulsed direct current.

More specifically, the circuit board 33 is provided with a power supply terminal 331. The power input unit 431 is electrically connected to the power supply terminal 331. In other words, in the embodiment, the first and second power sources are the same. The first power source supplies power to the light emitting module 4 via the circuit substrate 33. Of course, in other embodiments, the first and second power sources can also be separated. In addition, the two electrodes 62 are disposed at opposite ends of the light emitting body 61. The light emitting body 61 and the two electrodes 62 are coaxially disposed, and the radial size of the light emitting body 61 is larger than the radial dimension of each of the electrodes 62. Moreover, each of the electrodes 62 includes a hollow electrode cap 63 located inside the illuminating body 61. The two electrode caps 63 are disposed coaxially so that the light beam can be emitted along the circumference of the electrode caps 63. Evenly distributed.

Further, the lighting module 4 further includes a processing unit 5 disposed on the substrate 41. The processing unit 5 includes an inverter circuit 51 electrically connected to the power input unit 431 and the boosting circuit 42. The circuit 51 is configured to convert an input power source having a first frequency input by the power input unit 431 into at least one output power having a second frequency and an output power having a third frequency, and transmitting in a preset sequence. Up to the boosting circuit 42, the first and second frequencies are different, and the second and third frequencies are different, whereby the plasma tube 6 is generated according to the power source of the different frequency input by the boosting circuit 42 The undulating wave of light.

Further, the plurality of electronic components 44 includes a plurality of passive components 45 and at least one transformer 46. The electrical connection between the plurality of passive components 45 forms a low voltage boost electrically connected to the power input portion 431 and the processing unit 5. The circuit 421 can further boost the power supply provided by the circuit substrate 33, such as 1.5~3.5V to 12~15V. The at least one transformer 46 forms a high voltage boosting circuit 422 electrically connected between the low voltage boosting circuit 421 and the two power output ends, and can further convert the low voltage power into high voltage power to supply the plasma tube 6. Use, such as 12~15V to 700~900V.

In the embodiment, the light-emitting module 4 is disposed in the inner space 35. The cover 32 is provided with the light-transmitting portion 2, wherein the light-transmitting portion 2 is a consistent hole 21, and the light-emitting body 61 is provided. It is exposed to the through hole 21 and does not protrude from the cover 32. In this way, the light source of the light-emitting body 61 can directly and surely illuminate the keycaps 34 and a part of the surrounding environment of the keyboard module 1 to facilitate clear viewing of the keycap 34 in a dark and unclear environment, and the human body The eyes will not have the feeling of glare and other comfort. In addition, this structural configuration eliminates the need for complicated optical path design, which can reduce production difficulty and reduce the complexity of keyboard construction. It is worth mentioning that when the finger of the human body touches the light-emitting body 61, the light beam located inside the light-emitting body 61 is neutralized by electrons (such as the function of the human body becoming a grounding wire), and part of the light beam is towed to the place. The touched area, in turn, generates a specific light path, and the through hole 21 can facilitate the user to directly touch the light emitting body 61 to produce the above effect.

It should be emphasized that the design of the light-emitting body 61 does not protrude from the cover body 32, and can effectively reduce the unintended collision of the light-emitting body 61 under the premise of illuminating the key caps 34 to protect the light-emitting body 61. The structural integrity of the illuminating body 61. Preferably, the cover body 32 is further provided with a positioning portion 321 for positioning the plasma tube 6 to prevent the plasma tube 6 from moving relative to the cover body 32, thereby reducing the occurrence of collision. In another preferred manner, in the opening direction of the through hole 21, the cover 32 completely covers the two electrodes 62 to prevent the human body from touching the electrode 62 and being electrically shocked, and also blocking foreign objects from adhering to each of the electrodes. The electrode 62 causes an adverse effect. More preferably, the light-emitting module 4 further includes at least one protective member 9 , each of the protective members 9 covering at least a portion of the light-emitting body 61 to prevent an object from directly colliding with the light-emitting body 61 and absorbing or dispersing the impact force to further The illuminating body 61 is comprehensively protected. Each of the protection members 9 is preferably made of a transparent material, and has a good light transmission effect.

In this embodiment, the number of the at least one protection member 9 is three, and the protection members 9 are disposed at equal intervals. The light-emitting body 61 is disposed along the longitudinal direction of the cover 32, and the length of the light-emitting body 61 is substantially half of the length of the cover 32, and the keycaps 34 can be widely and surely illuminated. In addition, in the axial direction of the light emitting body 61, the cover 32 abuts the light emitting body 61 to completely shield the two electrodes 62.

It can be understood that the aspect of the permeable portion 2 is not limited to the above, and as shown in another embodiment of FIG. 7, the permeable portion 2A is a cover 22 composed of a light-transmitting material. The light-emitting module 4 is disposed between the light-transmitting portion 2A and the seat body 31. The cover plate 22 can protect the light-emitting body 61 in a more comprehensive manner. The illuminating body 61 is preferably adjacent to the permeable portion 2A, so as to prevent the cover plate 22 from affecting the special effect of the human body to trigger the traction beam. For example, the illuminating body 61 is attached to the cover plate 22. It can be understood that in other embodiments, the cover itself may also be a part of the cover, in other words, the entire cover is transparent or not.

It is to be noted that the position of the permeable portion 2A is not limited to the above position, and the position of the plasma tube 6 can be set at any position of the keyboard base 3 as needed, for example, but not limited to, as shown in the figure. 8 to FIG. 10, in another embodiment, it can be understood that the key cap 34A and the cover 32 define a space for the arrangement, and the plasma tube 6A is disposed in the placement space, and the key cap 34A is opened. The light transmissive portion 2B. In this embodiment, the keycap 34A is a blank key.

The substrate 41A is preferably disposed in the internal space 35, and the plasma tube 6A is conveniently disposed for disassembly and replacement. The plasma tube 6A is further provided with a second electrode 62. The second plug module 72 is electrically connected to the first plug module 71, and the second plug module 72 is provided with the two power supplies. The output unit 432 can be quickly and easily inserted and removed by the user, which is very convenient and fast.

In addition, the light-emitting module 4A can be further provided with a trigger switch 8 , which is selectively electrically connected between the power input portion 431 and the plasma tube 6A. The trigger switch 8 For detecting the displacement of the key caps 34A, wherein the trigger switch 8 turns on the power input portion 431 and the plasma tube 6A when the key cap 34A is pressed downward by a pressure to a predetermined position. On the contrary, the trigger switch 8 does not turn on the power input unit 431 and the plasma tube 6A. It will be appreciated that the applications between the various embodiments described above can be used interchangeably to develop different variations.

In summary, the illuminated keyboard of the present invention can accurately illuminate the keyboard module and the surrounding environment to provide a user to use in a dim environment, and provide a clear and bright environment due to the direct illumination of the surface of the keycap. For users to watch. In addition, the cover structure covers the electrode to protect the human body from electric shock, and the plasma tube does not protrude from the through hole to reduce the probability of being hit, and the surface of the light-emitting body is covered with a protective member to improve the anti-collision capability.

1‧‧‧ keyboard module
2, 2A, 2B‧‧‧ permeable part
21‧‧‧through holes
22‧‧‧ Cover
3‧‧‧ Keyboard base
31‧‧‧
32‧‧‧ Cover
321‧‧‧ Positioning Department
33‧‧‧ circuit board
331‧‧‧Power supply end
34, 34A‧‧‧Key Cap
35‧‧‧Internal space
4, 4A‧‧‧Lighting Module
41, 41A‧‧‧Substrate
42‧‧‧Boost circuit
421‧‧‧Low voltage boost circuit
422‧‧‧High voltage boost circuit
431‧‧‧Power input section
432‧‧‧Power Output Department
44‧‧‧Electronic components
45‧‧‧ Passive components
46‧‧‧Transformers
5‧‧‧Processing unit
51‧‧‧Frequency conversion circuit
6, 6A‧‧‧Plastic tube
61‧‧‧Lighting body
62‧‧‧Electrode
63‧‧‧Electroic cap
71‧‧‧First plug module
72‧‧‧Second plug module
8‧‧‧Trigger switch
9‧‧‧protection

1 and 2 are perspective views of an embodiment of the present invention. Figure 3 is a partial exploded view of Figure 1. 4 and 5 are side cross-sectional views of Figs. 1 and 2, respectively. FIG. 6 is a block diagram showing the relationship of a light emitting module according to an embodiment of the present invention. Figure 7 is a side cross-sectional view showing another embodiment of the present invention. Figure 8 is a perspective view of still another embodiment of the present invention. Figure 9 is a partial exploded view of Figure 8. Figure 10 is a block diagram showing the relationship of a trigger switch of still another embodiment.

Claims (10)

An illuminated keyboard includes: a keyboard module, a light transmissive portion and a keyboard base, wherein the light transmissive portion is disposed on the keyboard base, the keyboard base is provided with a body, a cover, a circuit substrate and a plurality of a key cap, the cover body is disposed on the base body and defines an inner space with the base body, the circuit substrate is electrically connected to a first power source and is disposed in the inner space, and the key caps are reciprocally movable Positioning on the cover body, and the key caps are configured to externally press and move to activate the portion of the circuit substrate; a light emitting module disposed on the keyboard base body, including a substrate, a booster circuit, and a plasma The voltage boosting circuit is disposed on the substrate, the boosting circuit includes at least one conductive circuit and a plurality of electronic components, the electronic components are electrically connected to the at least one conductive circuit, and the at least one conductive circuit includes a power input portion and a power supply input portion, the power input portion is electrically connected to a second power source, the plasma tube is provided with a light emitting body and two electrodes, at least part of the light emitting body corresponding to the light transmissive portion, the two electrodes Set at Luminescent body and connected to the two phase power supply output section. The illuminating keyboard of claim 1 , wherein the illuminating module is disposed in the inner space, the cover body is provided with the permeable portion, the permeable portion is a consistent hole, and the illuminating body is exposed The hole does not protrude from the cover body, and the cover body completely covers the two electrodes in the opening direction of the through hole. The illuminating keyboard of claim 1, wherein the cover body is provided with the permeable portion, and the permeable portion is a cover plate made of a light-transmitting material, and the light-emitting module is disposed in the inner space. Between the permeable portion and the base, and the illuminating system is adjacent to the permeable portion. The illuminating keyboard of claim 1, wherein the key cap and the cover body define a space for placement, the plasma tube is disposed in the placement space, and the keycap opens the permeable portion. The illuminating keyboard of claim 4, wherein the plasma tube is further provided with a first plug module electrically connected to the two electrodes, and the illuminating module is further provided with an electrical component of the first plug module The second plug module is connected, and the second plug module is provided with the two power output portions. The illuminating keyboard of claim 1, wherein the illuminating module is further provided with a trigger switch, the trigger switch is selectively electrically connected between the power input portion and the plasma tube, and the trigger switch is used for Detecting the displacement of the key caps; wherein, when the key cap is pressed downward by a pressure to a predetermined position, the trigger switch turns on the power input portion and the plasma tube; otherwise, the trigger switch is not turned on. The power input unit and the plasma tube. The illuminating keyboard of claim 1, wherein the illuminating module further comprises a processing unit disposed on the substrate, the processing unit comprising an inverter circuit electrically connected to the power input portion and the boosting circuit, the frequency converting circuit The input power source having a first frequency input by the power input portion is converted into at least one output power source having a second frequency and an output power source having a third frequency, and is transmitted to the liter in a preset sequence. In the voltage circuit, the first and second frequencies are different, and the second and third frequencies are different. The illuminating keyboard of claim 1, wherein the illuminating module further comprises at least one protecting member, each of the covering members covering at least a portion of the illuminating body. The illuminating keyboard of claim 1, wherein the plurality of electronic components comprise a plurality of passive components and at least one transformer, wherein the plurality of passive components are electrically connected to each other to form a low voltage boost electrically connected to the power input portion and the processing unit The circuit, the at least one transformer forms a high voltage boosting circuit electrically connected between the low voltage boosting circuit and the output terminals of the two power sources. The illuminating keyboard of claim 9, wherein the cover body is further provided with a positioning portion for positioning the plasma tube; the light emitting module is disposed in the inner space, and the cover body is provided with the permeable portion, The light-transmitting portion is a uniform hole, the light-emitting body is exposed in the through-hole and does not protrude from the cover body, and in the opening direction of the through-hole, the cover body completely covers the two electrodes; The length of the cover body is disposed, and the length of the light-emitting body is half of the length of the cover body. The two electrodes are disposed at opposite ends of the light-emitting body, and the light-emitting body and the two electrodes are coaxially disposed, and The radial dimension of the illuminating body is greater than the radial dimension of each of the electrodes; in the axial direction of the illuminating body, the cover body abuts the illuminating body; the illuminating module further comprises a process disposed on the substrate The processing unit includes a frequency conversion circuit electrically connected to the power input portion and the boosting circuit, and the frequency conversion circuit is configured to convert an input power source having a first frequency input by the power input portion into at least one Second frequency a rate output power source and an output power source having a third frequency, and are transmitted to the boosting circuit in a preset sequence, the first and second frequencies are different, and the second and third frequencies are different; the light emitting mode The group further includes at least one protection member, each of the protection members covering at least a portion of the light-emitting body; each of the protection members is a transparent material; the number of the at least one protection member is three, and the protection members are equally spaced; Each of the electrodes includes a hollow electrode cap tube disposed inside the light emitting body, and the two electrode cap cylinders are disposed coaxially; the circuit substrate is provided with a power supply end, and the power input portion is electrically connected to the power supply end The light-emitting module is further provided with a trigger switch, the trigger switch is selectively electrically connected between the power input portion and the plasma tube, and the trigger switch is configured to detect the displacement of the key caps Wherein, when a keycap is pressed down to a predetermined position by external pressure, the trigger switch turns on the power input portion and the plasma tube; otherwise, the trigger switch does not turn on the power input portion and the plasma tube.