CN201421794Y

CN201421794Y - Luminous keyboard with brightened local portion

Info

Publication number: CN201421794Y
Application number: CN2009201505008U
Authority: CN
Inventors: 周进文
Original assignee: Xinju Enterprise Co Ltd
Current assignee: Zippy Technology Corp
Priority date: 2009-05-12
Filing date: 2009-05-12
Publication date: 2010-03-10
Anticipated expiration: 2019-05-12

Abstract

The utility model relates to a luminous keyboard with a brightened local portion, which overcomes shortages that a traditional luminous keyboard illuminates uniformly to cause positions of keycaps tobe hard to be identified. The luminous keyboard comprises a keyboard portion and a luminous portion providing a light source for the keyboard portion, wherein the keyboard portion is provided with a bottom plate, a plurality of keycaps capable of moving up and down relative to the bottom plate and a circuit board outputting signals during up and down movement of the keycaps, the luminous portion is provided with a luminous component generating the light source and a light guide plate which receives the light source and transmits the same to the keyboard portion to light, and a light focusing portion is arranged on the light guide plate corresponding to the preset local position of the keyboard portion, thereby enabling the light guide plate to provide luminous effect with stronger brightness at the preset local position of the keyboard portion via the light focusing portion.

Description

The illuminated keyboard of local blast

Technical field

The utility model relates to a kind of illuminated keyboard of local blast, relate to particularly a kind of with keycap brightness raising so that the illuminated keyboard of identification.

Background technology

In epoch of scientific and technological information now, computer has become the indispensable necessity of people, and it is closely bound up with people's life, all trades and professions also all need rely on computer and come less important work, no matter be desktop PC or notebook computer etc., the field of its use and opportunity are quite extensive, and all might use in any environment, but under low-light level or dark surrounds, because insufficient light causes accurately knocking the output that keyboard is used as signal.

Come out for solving the existing multiple at present illuminated keyboard patent of this problem, shown in the 6179432nd, 6199996,6284988,6322229, No. 6554442 patent cases of the U.S. and TaiWan, China the 438035th, 465777,468833,509955,516671,535385,570235, I242737 patent case, above-mentioned patent case all discloses a kind of illuminated keyboard, mainly a light tiles is arranged at keyboard, light tiles is emitted beam to keycap and is convenient to user's operation keyboard in insufficient light or dark environment.

But, only flexible body and interlinked mechanism intercept between luminescence component in above-mentioned each patented technology document in the equal demand keyboard and the keycap, and in each patent mostly with keycap, elastomer and interlinked mechanism make with light transmissive material that (partial monopoly is that keycap is designed to non-light transmissive material, but the character symbols on the keycap is a light transmissive material to be made), when allowing the light tiles full slice system penetrate light source, keyboard is to present even kenel backlight, because the environment of user's operating light-emitting keyboard mostly is insufficient light, comparatively dark place, for example on the aircraft, the first-class low-light level environment of car, but keyboard full wafer uniformly light-emitting, to cause overall brightness to cross by force and other people around the influence, and in this low-light level environment, the user originally just reduces many to the keyboard visual capabilities, if full wafer is evenly shinny, the user is difficult to the character symbols on each keycap of identification at all, even this character symbols is made with light-proof material, perhaps keycap is a light-proof material and character symbols is a light transmissive material, also can cause the difficult degree of difficulty of identification because of the emitted light source disturbing effect in crack between the adjacent keycap, can't remember keycap character symbols person really to being unfamiliar with, generation is knocked mistake and the problem of output error instruction signal.

The utility model content

Main purpose of the present utility model is to solve above-mentioned disappearance, increases the brightness of keycap by this, so that user's identification keycap.

For reaching above-mentioned purpose, the utility model proposes a kind of illuminated keyboard of local blast, it includes and is used to the illuminating part that knocks the keypad portion of input instruction and this keypad portion light source is provided, wherein, this keypad portion has base plate, be located on this base plate and a plurality of keycaps of moving up and down of base plate relatively, and in keycap moves up and down the circuit board of output signal, and this illuminating part has the luminescence component that produces light source and receive this light source and light source conducted to keypad portion and show the light guide plate of illumination effect, this light guide plate is in being provided with a light collecting part to should keypad portion predetermined local location, make light guide plate that the illumination effect of strong brightness is provided in the predetermined localized positions of keypad portion with this light collecting part, and should be scheduled to the position that local location can be corresponding keycap, make the brightness of each keycap be higher than the gap of key and key, so that the user picks out the position of each keycap, knock wrong probability thereby reduce.

Via as can be known above, the beneficial effect that the utility model reaches compared to prior art is to promote the accuracy rate of illuminated keyboard operation input.

Description of drawings

Fig. 1 is the generalized section of the utility model first embodiment.

Fig. 2 is the generalized section of the utility model second embodiment.

Fig. 3 is the generalized section of the utility model the 3rd embodiment.

Fig. 4 is the generalized section of the utility model the 4th embodiment.

Fig. 5 is the generalized section of the utility model the 5th embodiment.

Fig. 6 is the generalized section of the utility model the 6th embodiment.

Fig. 7 is the through hole schematic diagram () of light guide plate in the utility model.

Fig. 8 is the through hole schematic diagram (two) of light guide plate in the utility model.

Fig. 9 is a luminance schematic diagram of the present utility model.

Embodiment

Relevant detailed description of the present utility model and technology contents now are described as follows with regard to conjunction with figs..

See also shown in Figure 1, the utility model is a kind of illuminated keyboard of local blast, this illuminated keyboard comprises in order to input and knocks the keypad portion of instruction and the illuminating part of this keypad portion light source is provided, wherein, this keypad portion comprises base plate 70, be positioned at the substrate 40 on this base plate 70, a plurality of keycaps 10 of being located on this substrate 40 and can moving up and down, and be located at

base plate

70 and 40 of substrates are pushed and the circuit board 60 of output signal by these keycaps 10, and the perforation 41 that substrate 40 is provided with the interlinked mechanism 20 that links keycap 10 and has a corresponding keycap 10 is to be provided with an elastomer 30 that props up keycap 10, use the relation of moving up and down that constitutes keycap 10, and circuit board 60 when moving up and down, these keycaps 10 is pressed and output signal by elastomer 30; And illuminating part comprises the luminescence component 80 (as light-emitting diode) that produces light source and receive this light source and light source is conducted to the light guide plate 50 that keypad portion shows illumination effect, this light guide plate 50 is provided with light collecting part 51 in the predetermined local location of corresponding keypad portion, make light guide plate 50 provide strong brightness illumination effect in the predetermined localized positions of keypad portion with light collecting part 51, constituted main framework of the present utility model in this way, and the predetermined local location at light collecting part 51 places is the position of corresponding keycap 10 in the utility model, make the brightness of each keycap 10 be higher than the gap of key and key, so that the user picks out each keycap 10.

And light guide plate 50 of the present utility model can be arranged on the circuit board 60, among the embodiment as Fig. 1 to Fig. 3, light guide plate 50 is between keycap 10 and this circuit board 60, this light guide plate 50 is provided with the through hole 52 of corresponding keycap 10 with ccontaining elastomer 30, and light collecting part 51 is arranged at the peritreme of this through hole 52, and forms the form of a bulge loop, is example with Fig. 1, the clout that light collecting part 51 is produced when burrowing formation through hole 52 for light guide plate 50 with the shaping facility, and be positioned at light guide plate 50 downsides; Also can as shown in Figure 2 light guide plate 50 oppositely be burrowed, or light guide plate 50 turn-overs of Fig. 1 are located between keycap 10 and the circuit board 60, make light collecting part 51 be positioned at light guide plate 50 upsides; And light collecting part 51 is except being arranged at the single side of light guide plate 50 as Fig. 1 and Fig. 2, more can be arranged at the both sides of light guide plate 50 as shown in Figure 3, light guide plate 50 less holes, footpath of portalling that are shaped earlier for example, with the bigger apparatus of external diameter great achievement through hole 52 is supportted in the hole again, and these through hole 52 peritremes are formed the light collecting part 51 of light guide plate 50 both sides toward the extruding of light guide plate 50 both sides.

In addition, light guide plate 50 also can be arranged under this circuit board 60, extremely shown in Figure 6 as Fig. 4, the place different with previous embodiment is that the position of light guide plate 50 settings is different, among the embodiment of Fig. 4 to Fig. 6, therefore light guide plate 50 need not be provided with through hole 52 ccontaining elastomers 30 between circuit board 60 and base plate 70, the light source of luminescence component 80 is via light guide plate 50 and pass circuit board 60 (can be film circuit board) and conduct to keycap 10; And the light collecting part 51 of light guide plate 50 forms the form of a projection in this embodiment, and light collecting part 51 also can be arranged at the one-sided or both sides of light guide plate 50; For example the embodiment of Fig. 4 is arranged at the downside of light guide plate 50 with light collecting part 51, and the embodiment of Fig. 5 is arranged at the upside of light guide plate 50 with light collecting part 51, in addition, in Fig. 6, light collecting part 51 is arranged at the both sides of light guide plate 50; Therefore, the utility model does not limit the position that light guide plate 50 is provided with, can be arranged between substrate 40 and the circuit board 60, also can be arranged between circuit board 60 and the base plate 70, importantly light guide plate 50 increases luminosity in predetermined local location by light collecting part 51.

Except increasing the luminosity by light collecting part 51, when light guide plate 50 is arranged between substrate 40 and the circuit board 60, can adjust the through hole 52 of light guide plate 50 as shown in Figures 7 and 8,53 shape, with control through hole 52, the effect of 53 inner light sources reflection, wherein, the through hole 52 of light guide plate 50 in the utility model, 53 form is decided by the external form of aforementioned shaping facility, as shown in Figure 7, if the external diameter of moulding facility is circular, then light guide plate 50 just can produce the comparatively smooth through hole of circle and hole wall 52, and after making light source conduct in the through hole 52, be difficult for producing the effect of reflection; As Fig. 8, external diameter as the moulding facility is non-circular, then 53 of the through holes of light guide plate 50 are non-circular, and can form uneven or irregular hole wall in response to the external diameter of moulding facility, after making light source conduct in the through hole 53, the structure that forms recess and protuberance because of hole wall produces repeatedly reflection, can increase leaded light brightness once more; The effect of reflection can further increase leaded light brightness again when the utility model was derived except increasing the leaded light brightness by light collecting part 51, more can reaching light source by the form of through

hole

52,53 hole walls.

In sum, the utility model mainly is provided with a light collecting part 51 in the predetermined local location of this light guide plate 50, make light guide plate 50 provide strong brightness illumination effect in the predetermined localized positions of keypad portion with this light collecting part 51, and as shown in Figure 9, when predetermined local location is the position of corresponding keycap 10, by such scheme the brightness of each keycap 10 will be promoted, so that the user separates out the position of each keycap 10, improve traditional illuminated keyboard uniformly light-emitting by this and cause the keycap position to be difficult for the disappearance of identification.

Above-mentioned is preferred embodiment of the present utility model only, is not to be used for limiting practical range of the present utility model, and promptly all equivalences of doing according to the content of the utility model claim change and finishing, all should be technology category of the present utility model.

Claims

1. the illuminated keyboard of a local blast is characterized in that, comprising:

Keypad portion, a plurality of keycaps (10) that have base plate (70) and be located at that described base plate (70) is gone up and can described relatively base plate (70) move up and down, described keypad portion also is provided with the circuit board (60) of output signal in keycap (10) moves up and down;

Illuminating part, have the luminescence component (80) that produces light source and receive described light source and described light source conducted to keypad portion and show the light guide plate (50) of illumination effect, described light guide plate (50) is provided with light collecting part (51) in the predetermined local location of corresponding keypad portion, and described light guide plate (50) provides strong brightness illumination effect with described light collecting part (51) in the predetermined localized positions of described keypad portion.

2. the illuminated keyboard of local blast according to claim 1 is characterized in that, described predetermined local location is the position of corresponding described keycap (10).

3. the illuminated keyboard of local blast according to claim 1 is characterized in that, described light guide plate (50) is arranged on the described circuit board (60).

4. the illuminated keyboard of local blast according to claim 3 is characterized in that, described light guide plate (50) is provided with the through hole (52 of corresponding keycap (10); 53), and described light collecting part (51) be located at described through hole (52; 53) peritreme place.

5. the illuminated keyboard of local blast according to claim 4 is characterized in that, described through hole (52) is a circular hole.

6. the illuminated keyboard of local blast according to claim 4 is characterized in that, described through hole (53) is a non-circular hole.

7. the illuminated keyboard of local blast according to claim 6 is characterized in that, the hole wall of described through hole (53) has formed recess and protuberance to increase source reflection.

8. the illuminated keyboard of local blast according to claim 1 is characterized in that, described light guide plate (50) is arranged under the described circuit board (60).

9. according to the illuminated keyboard of claim 3 or 8 described local blasts, it is characterized in that described light collecting part (51) is located at the both sides of described light guide plate (50).

10. the illuminated keyboard of local blast according to claim 1, it is characterized in that, described keypad portion is provided with substrate (40) in described base plate (70), described substrate (40) has perforation (41) and props up the elastomer (30) of keycap (10) with setting, and described elastomer (30) is pressed in the moving up and down of keycap (10) and touched described circuit board (60).

11. the illuminated keyboard of local blast according to claim 10 is characterized in that, described substrate (40) is provided with and links keycap (10) to constitute the interlinked mechanism (20) of keycap (10) relation of moving up and down.