The present invention relates to an input apparatus, and in particular, to a luminous keyboard having a light emitting function.
Common peripheral input apparatuses of a computer include a mouse, a keyboard, a trackball, and the like. The keyboard is able to directly input a character and a symbol to the computer. Therefore, the keyboard receives quite a lot of attentions from users and input apparatus manufacturers. The subject of this specification is a keyboard.
Referring to
With evolution of technologies, keyboard manufacturers are devoted to developing various keyboards having special functions, so as to meet various requirements of different users, and a luminous keyboard finds most favor with users. The appearance of a conventional luminous keyboard is roughly the same as that of the conventional keyboard 1. However, as the luminous keyboard provides a function that a key emits light, the internal structure of the luminous keyboard differs from that of a conventional keyboard having no light emitting function. The internal structure of the conventional luminous keyboard is described below. Referring to
In the key 20, the keycap 201 is exposed out of the conventional keyboard 2 to be pressed by a user. The scissor-type connection element 202 is configured to connect the keycap 201 and the baseboard 24. The elastic element 203 passes through the scissor-type connection element 202 and separately contacts the keycap 201 and the membrane switch circuit 21. The membrane switch circuit 21 located at the elastic element 203 is able to be pressed against by the elastic element 203, to generate a key signal. The circuit board 25 is located on one side of the membrane switch circuit 21, and the light emitting element 23 is disposed on the circuit board 25, so that a beam B generated by the light emitting element 23 is projected into the light guide plate 22. The light guide plate 22 is able to guide the beam B to be projected into the keycap 201. The light emitting element 23 is a lateral light emitting diode.
The deckle board 26 includes a plurality of through holes 261, and each of the through holes 261 is corresponding to one key 20. The deckle board 26 prevents the beam B from passing through, so that the beam B is projected onto the keycap 201 as much as possible. By means of the foregoing structure, the keys 20 of the conventional luminous keyboard 2 are able to emit light. However, the beam B is apt to leak out from the through holes 261 of the deckle board 26. Consequently, a halo is generated on the periphery of the keycap 201, and interferes with vision of a user.
Therefore, the luminous keyboard capable of alleviating a halo phenomenon is needed.
An objective of the present invention is to provide a luminous keyboard capable of alleviating a halo phenomenon.
In a preferred embodiment, the present invention provides a luminous keyboard, including a light emitting module, a plurality of keys, and a deckle board. The light emitting module is configured to generate a beam. The plurality of keys is located above the light emitting module, where at least one of the plurality of keys includes a keycap, and the beam is projected to the keycap, so that the keycap emits light. The deckle board is located between the keycap and the light emitting module, and is configured to block the beam. The deckle board includes a plurality of through holes and a plurality of inclined-surface walls. Each of the through holes is corresponding to one keycap, and the keycap stretches into the through hole. Each of the inclined-surface walls encircles one of the through holes and partially covers one keycap, and is configured to prevent the beam from leaking out through the through holes.
In short, the inclined-surface wall is disposed on the deckle board of the luminous keyboard of the present invention, so that the width of an upper end of the through hole is less than the width of a lower end of the through hole. In this way, a structure that a gap between the keycap and the deckle board is covered by the inclined-surface wall is formed. Therefore, the beam does not leak out from the gap between the keycap and the deckle board. In addition, the keycap includes an inclined-surface outer edge, and the inclined-surface outer edge is capable of being blocked by a corresponding inclined-surface wall, to prevent the keycap from falling off the through hole. Therefore, the inclined-surface wall not only can prevent the beam from passing through, but also can block the keycap, but does not affect up and down motion of the keycap.
In view of the puzzlement caused by the conventional technologies, the present invention provides a luminous keyboard capable of resolving the problem of the prior art. First, referring to
The internal structure of the luminous keyboard 3 in the present invention is described below. Referring to both
The baseboard 34 is disposed below the switch circuit board 33, is connected to the plurality of keys 30, and is able to bear the plurality of keys 30, the switch circuit board 33, and the light guide plate 321. The baseboard 34 includes a plurality of hooks 341, capable of being connected to the plurality of connection elements 302 of the keys 30. The connection elements 302 are separately connected to the keycap 301 and the hooks 341, so as to fasten the keycap 301 onto the baseboard 34, and enable the keycap 301 to move up and down relative to the baseboard 34. On the other hand, the switch circuit board 33 is located below the plurality of keys 30, and is able to be triggered by the keys 30 so as to output corresponding key signals. The elastic element 303 located below the keycap 301 is able to be pushed and pressed against by the keycap 301, so as to trigger the switch circuit board 33. In the preferred embodiment, the connection element 302 is a scissor-type connection element, and the elastic element 303 is an elastic rubber body.
In
A situation that the key 30 is pressed to run is described below. When a user presses the keycap 301 of the key 30, the keycap 301 moves downward relative to the deckle board 31 and the baseboard 34, so that the connection element 302 is pushed and pressed against to sway. Moreover, the keycap 301 moving downward pushes and presses against the elastic element 303, so that the elastic element 303 is pressed against to deform and triggers the switch circuit board 33, to generate a corresponding key signal. When the user no longer presses the key 30, the keycap 301 moves upward relative to the deckle board 31 and the baseboard 34 due to elastic force generated when the elastic element 303 restores from a deformed state, so as to push the keycap 301 to move upward. At the same time, the connection element 302 is driven to sway, so that the keycap 301 restores to a position before pressing.
On the other hand, when the light emitting element 323 is driven to generate the beam B, the beam B is projected to the light guide plate 321 and is totally reflected inside the light guide plate 321, so that the beam B is guided by the light guide plate 321 and projected to the keycap 301. In this way, the keycap 301 generates a light emitting effect. Because the deckle board 31 uses a structure of the inclined-surface wall 312, a gap between the keycap 301 and the deckle board 31 can be covered by the inclined-surface wall 312. Therefore, the beam B is blocked by the inclined-surface wall 312 when passing through the gap between the keycap 301 and the deckle board 31. Therefore, a halo phenomenon does not occur. In a preferred practice, the luminous keyboard 3 further includes a reflection layer 35. The reflection layer 35 may be disposed on the inclined-surface wall 312, to reflect the beam B from the light guide plate 321, so that the beam B is projected to the keycap 301. Therefore, use efficiency of the beam B can be improved.
There are three aspects needing to be specially noted: 1. The light guide plate 321 in the preferred embodiment is disposed on the baseboard 34, and is used as an example only, and the present invention is not limited thereto. In fact, the light guide plate may also be disposed below the baseboard as required, and the baseboard is provided with a corresponding hole, so that a beam passes through the hole. 2. The light emitting element 323 is not limited to a lateral light emitting diode, which is used as an example only. The light emitting module of the luminous keyboard in the present invention may also use a direct-type light emitting diode, and the direct-type light emitting diode is disposed below the keycap. In this way, the light guide plate does not need to be disposed in a light emitting module. 3. It is not limited that a manner of fixing the keycap is limited to using a scissor-type connection element, and the keycap may also be fixed and enabled to move up and down relative to the baseboard by using a connection element in another form or a magnetic-type structure.
It can be known from the foregoing that the inclined-surface wall is disposed on the deckle board of the luminous keyboard of the present invention, so that the width of an upper end of the through hole is less than the width of a lower end of the through hole. In this way, a structure that a gap between the keycap and the deckle board is covered by the inclined-surface wall is formed. Therefore, the beam does not leak out from the gap between the keycap and the deckle board. In addition, the keycap includes an inclined-surface outer edge, and the inclined-surface outer edge is capable of being blocked by a corresponding inclined-surface wall, to prevent the keycap from falling off the through hole. Therefore, the inclined-surface wall not only can prevent the beam from passing through, but also can block the keycap, but does not affect up and down motion of the keycap.
The foregoing descriptions are merely preferred embodiments of the present invention, but are not intended to limit the patent scope of the present invention. Any equivalent changes or modifications made without departing from the spirit disclosed in the present invention shall fall within the patent scope of the specification.
Number | Date | Country | Kind |
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106111731 | Apr 2017 | TW | national |