CN104252988A - Light emitting keyboard device - Google Patents
Light emitting keyboard device Download PDFInfo
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- CN104252988A CN104252988A CN201310257068.3A CN201310257068A CN104252988A CN 104252988 A CN104252988 A CN 104252988A CN 201310257068 A CN201310257068 A CN 201310257068A CN 104252988 A CN104252988 A CN 104252988A
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- guide plate
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Abstract
The invention provides a light emitting keyboard device which comprises a plurality of keys, a support plate, a light emitting element and a light guide plate, wherein a support plate opening is formed in the support plate, and provided with a light guide oblique plane. The light emitting element extends into the support plate opening to generate multiple light beams. When the light emitting element generates the light beams, the light beams are guided by the light guide oblique plane to enter the light guide plate, and then projected to the keys, so that the keys emit light. Therefore, the light quality of the light beams projected into the light guide plate is increased.
Description
Technical field
The present invention relates to a kind of key board unit, particularly relate to the key board unit with lighting function.
Background technology
Common computer peripheral input unit comprises mouse apparatus, key board unit and Trackball device etc., and wherein key board unit directly can key in word and symbol gives computer, is therefore quite subject to the attention of user and input unit manufacturer.
Refer to Fig. 1, it is the surface structure schematic diagram of existing key board unit.The surface of existing key board unit 1 has multiple button 10, those buttons 10 are classified as general key 101, numerical key 102 and function key 103 etc., those buttons produce corresponding signal for user presses with finger and give computer, computer is made to perform touched keypress function, such as general key 101 is in order to symbols such as inputting English letters, numerical key 102 in order to input numeral, function key 103 then in order to provide various function, such as F1 ~ F12 etc.Wherein existing key board unit 1 is the key board unit of a notebook computer.
Along with the evolution of science and technology, keyboard manufacturer is devoted to research and develop the various key board unit with specific function to meet the various demands of different users, illustrates for lighting keyboard.The outward appearance of existing lighting keyboard is roughly the same with the outward appearance of existing key board unit 1, but provides the function of key light emitting because of lighting keyboard, therefore its internal structure is different from the existing key board unit without lighting function.The internal structure of existing lighting keyboard is below described.Refer to Fig. 2, it is the structural profile schematic diagram of existing lighting keyboard.Existing lighting keyboard 2 comprises multiple button 20, film switch circuit 21, light guide plate 22, backlight module 23, supporting bracket 24, reflector 25 and a base 26.Button 20 comprises button cap 201, scissor Connection Element 202 and a flexible member 203.In existing lighting keyboard 2, above-mentioned each element is basipetal to put in order as button cap 201, scissor Connection Element 202, flexible member 203, film switch circuit 21, supporting bracket 24, light guide plate 22, reflector 25 and base 26, backlight module 23 is positioned at the side of film switch circuit 22, wherein existing lighting keyboard 2 is the key board unit of a notebook computer (not being shown in figure), and base 26 is arranged on this notebook computer.
In button 20, button cap 201 is revealed in the outer of existing key board unit 2 and can be pressed by user, scissor Connection Element 202 is in order to connect button cap 201 and supporting bracket 24, and flexible member 203 passes scissor Connection Element 202 and contacts with button cap 201 and film switch circuit 21 respectively.Film switch circuit 21 to comprise on one wiring board 211, separator 212 and once wiring board 213, wherein going up wiring board 211, separator 212 and line plate 213 is all with made by light transmissive material, and light transmissive material is Merlon (Polycarbonate, PC) made by material or polyethylene (polyethylene, PE) material.Upper wiring board 211 has multiple upper contact 2111, separator 212 is positioned at the below of wiring board 211, and the multiple separator perforates 2121 had corresponding to multiple upper contact 2111, and once wiring board 213 is positioned at the below of separator 212, has corresponding to the multiple lower contact 2131 of multiple upper contact 2111 and form multiple key switch 214 with multiple upper contact 2111.
Backlight module 23 comprises a luminous circuit board 231 and multiple light-emitting component 232 (only showing two in figure), luminous circuit board 231 is positioned at the below of film switch circuit 21, multiple light-emitting component 232 is given in order to provide an electric power, and multiple light-emitting component 232 to be arranged on luminous circuit board 231 and to stretch into multiple reflector perforate 251 of reflector 25 and multiple light guide plate perforates 221 of light guide plate 22, when multiple light-emitting component 232 obtains electric power, it is produced multiple light beam B, and multiple light beam B is projected to light guide plate 22, wherein multiple light-emitting component 232 is side direction type illuminating diode.Light guide plate 22 makes it be projected to button cap 201 in order to guide multiple light beam B.In Fig. 2, supporting bracket 24 between film switch circuit 21 and light guide plate 22, in order to carry button cap 201, scissor Connection Element 202, flexible member 203 and film switch circuit 21.Reflector 25 is arranged at the below of light guide plate 22, in order to reflect multiple light beam B, multiple light beam B is up projected, and avoid light beam B to waste, wherein the dual side-edge 252 of reflector 25 up bends and multiple sides 222 of coated light guide plate 22, with the phenomenon avoiding light guide plate 22 that side 222 light leak occurs.
In existing lighting keyboard 2, each button cap 201 has a bright dipping region 2011, and bright dipping region 2011 is the position at letter or symbol place, wherein the position in bright dipping region 2011 corresponds to the position of the guide-lighting site 223 in light guide plate 22, so that light beam is up guided to its bright dipping region 2011 through guide-lighting site 223.In supporting bracket 24, it comprises multiple supporting bracket perforate 241, and multiple supporting bracket perforate 241 corresponds to multiple guide-lighting site 223 and multiple bright dipping region 2011.On the other hand, because film switch circuit 21 is with made by light transmissive material, multiple light beam B is able to through film switch circuit 21.Whereby, multiple light beam B is able in response to multiple guide-lighting site 223 sequentially through multiple supporting bracket perforate 241 and film switch circuit 21, to be projected to multiple bright dipping region 2011, the letter on its button cap 201 or symbol is made then to be able to printing opacity and to have illumination effect.
Specifically, because supporting bracket 24 is with made by light-proof material, generally speaking, supporting bracket 24 is with made by metal material, it will stop that multiple light beam B passes through, and therefore, supporting bracket 24 must be provided with multiple supporting bracket perforate 241 and pass through for multiple light beam B.
Due to the trend that electronic installation is in recent years lightening, user also has lightening demand for lighting keyboard, and in view of this, key board unit manufacturer is on the market devoted to the lightening of lighting keyboard.Its general practice reduces the thickness of each element in lighting keyboard as much as possible, comprises light guide plate and light-emitting component.Wherein, the luminous efficiency of thinner light-emitting component (being such as less than the light-emitting component of 0.3 millimeter) is lower than thicker light-emitting component the light-emitting component of 0.6 millimeter (such as 0.4 millimeter or), and the cost of thinner light-emitting component is far above thicker light-emitting component.It not only causes the luminous efficiency of existing lighting keyboard low, and increases its cost.
Therefore, need a kind ofly to have lighting keyboard that is lightening and luminous efficiency concurrently.
Summary of the invention
Main purpose of the present invention is that providing a kind of has lighting keyboard that is lightening and luminous efficiency concurrently.
Secondary objective of the present invention is that providing a kind of has lighting keyboard that is lightening and cost viewpoint concurrently.
In a preferred embodiment, the invention provides a kind of lighting keyboard, comprise multiple button, a supporting bracket, a light-emitting component and a light guide plate.The plurality of button is revealed in a upper surface of this key board unit, and each this button has at least one bright dipping region.This supporting bracket is arranged at the below of the plurality of button and is connected to the plurality of button, and in order to fixing the plurality of button thereon, and this supporting bracket has one first supporting bracket perforate.This light-emitting component is positioned at the below of the plurality of button and stretches into this first supporting bracket perforate, in order to produce multiple light beam.This light guide plate is arranged at above or below this supporting bracket, in order to guide the plurality of beam projection to the plurality of bright dipping region; Wherein this first supporting bracket perforate has one first guide-lighting inclined-plane, projects enter this light guide plate in order to guide the plurality of light beam to pass through.
Be provided with the light-emitting component had compared with heavy thickness in lighting keyboard of the present invention, the luminous efficiency of the light beam that light-emitting component is exported is higher.Further, in lighttight supporting bracket, be provided with the first supporting bracket perforate corresponding to light-emitting component, make light-emitting component pass the first supporting bracket perforate and project multiple light beam to film switch circuit, to promote the illumination effect of lighting keyboard.Therefore, illuminated keyboard of the present invention can adopt the light guide plate of less thickness and carry out lightening, and adopts the light-emitting component compared with heavy thickness, and has preferably luminous efficiency, meanwhile, also has lower-cost advantage compared with the light-emitting component of heavy thickness.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of existing key board unit.
Fig. 2 is the structural profile schematic diagram of existing lighting keyboard.
Fig. 3 is the structural profile schematic diagram of lighting keyboard of the present invention in the first preferred embodiment.
Fig. 4 is the partial structurtes decomposing schematic representation of lighting keyboard of the present invention in the first preferred embodiment.
Fig. 5 is the structural profile schematic diagram of lighting keyboard of the present invention in the second preferred embodiment.
Fig. 6 is the partial structurtes decomposing schematic representation of lighting keyboard of the present invention in the second preferred embodiment.
Fig. 7 is the structural profile schematic diagram of lighting keyboard of the present invention in the 3rd preferred embodiment.
Fig. 8 is the structural profile schematic diagram of lighting keyboard of the present invention in the 4th preferred embodiment.
Wherein, description of reference numerals is as follows:
1 key board unit
2,3,4,5,6 lighting keyboards
22 remote controls
10,20,30,60 buttons
21,33,44,54 film switch circuits
22,43,53,63 light guide plate
23 backlight modules
24,31,41,51,61 supporting brackets
25 reflectors
32,42,52,62,232 light-emitting components
34,45,55,231 luminous circuit boards
35,47,57,67 flexible member films
46,56,66 light-reflecting portion
101 general keys
102 general keys
103 function keys
201,301,401,501,601 button caps
202 scissor Connection Elements
203,303,403,503,603 flexible members
211, wiring board on 331,441,541,641
212,332,442,542,642 separators
213,333,443,543,643 line plates
214,334 key switches
335,445,545 holding tanks
336,446 first light guide sections
221,332 light guide plate perforates
222 guide-lighting sites
223, the side of 533 light guide plate
223,534,241 supporting bracket perforates
251 reflector perforates
The side of 252 reflectors
302,402,502,602 Connection Elements
311,411,511 first supporting bracket perforates
331,431,531 second light guide sections
351 transmission regions
412,512,612 second supporting bracket perforates
413,513,613 the 3rd supporting bracket perforates
The side of 561 light-reflecting portion
561 reflector perforates
2111,3311 upper contacts
2131,3331 times contacts
2121,3321 separator perforates
B, B* light beam
2011,3011,4011,5011,6011 bright dipping regions
3111,4111,5111,6,111 first guide-lighting inclined-planes
5112,6,121 second guide-lighting inclined-planes
Embodiment
In view of the defect of prior art, the invention provides a kind of lighting keyboard solving prior art problem.Be the structural profile schematic diagram of lighting keyboard of the present invention in the first preferred embodiment please refer to Fig. 3 and Fig. 4, Fig. 3, and Fig. 4 is the partial structurtes decomposing schematic representation of lighting keyboard of the present invention in the first preferred embodiment.Film switch circuit 33, one luminous circuit board 34 that lighting keyboard 3 comprises multiple button 30, supporting bracket 31, multiple light-emitting component 32 (only showing two in figure), has light-guiding function and a flexible member film 35.Multiple button 30 is revealed in a upper surface of lighting keyboard 3.Each button 30 comprises button cap 301, Connection Element 302 and a flexible member 303, and button cap 301 is revealed in the upper surface of lighting keyboard 3, and button cap 301 has multiple bright dipping region 3011.Connection Element 302 between supporting bracket 31 and button cap 301, in order to connect supporting bracket 31 and button cap 301 and to make button cap 301 move up and down relative to supporting bracket 31.And flexible member 303 is arranged on flexible member film 35 between film switch circuit 34 and button cap 301, in order to provide an elastic force to give button cap 301, makes button cap 301 reset.Flexible member film 35 has multiple transmission region 351, and each transmission region 351 corresponds to a button cap 301.In this preferred embodiment, lighting keyboard 3 is the key board unit of a notebook computer, and Connection Element 302 is scissor Connection Element, flexible member 303 is the rubber elastomer of light-permeable, and flexible member film 35 is a black mylar film (Mylar), and film switch circuit 33 uses as light guide plate.In another preferred embodiment, Connection Element then can adopt the syndeton of other kinds.
Supporting bracket 31 is arranged at the below of multiple button 30 and is connected to multiple Connection Element 302, it in order to fixing multiple button 30 thereon, supporting bracket 31 comprises multiple first supporting bracket perforate 311, each first supporting bracket perforate 311 corresponds to a light-emitting component 32, and each first supporting bracket perforate 311 has one first guide-lighting inclined-plane 3111, wherein the first guide-lighting inclined-plane 3111 is towards film switch circuit 33.And light-emitting component 32 is positioned at the below of multiple button 30, and each light-emitting component 32 stretches into the first corresponding supporting bracket perforate 311 respectively, and it is in order to produce multiple light beam B*.Luminous circuit board 34 is arranged at the below of supporting bracket 31, in order to arrange multiple light-emitting component 32 thereon, and provides an electric power give light-emitting component 32 and drive light-emitting component 32.In this preferred embodiment, supporting bracket 31 is with made by light tight material, light-emitting component 32 is larger-size side direction type illuminating diode (being generally the side direction type illuminating diode of more than 0.4 millimeter), and luminous circuit board 34 is a flexible circuit board.
In Fig. 3, film switch circuit 33 is arranged between multiple button 30 supporting bracket 31, produce multiple push button signalling in order to be triggered by multiple flexible members 303 of multiple button 30, and film switch circuit 33 to comprise on one wiring board 331, separator 332 and once wiring board 333.Upper wiring board 331 has multiple upper contact 3311, separator 332 is positioned at the below of wiring board 331, and separator 332 has the multiple separator perforates 3321 corresponding to multiple upper contact 3311, when film switch circuit 33 is touched, corresponding upper contact 3311 stretches into corresponding separator perforate 3321.Line plate 333 is positioned at the below of separator 332, has corresponding to the multiple lower contact 3331 of multiple upper contact 3311 and forms multiple key switch 334 with multiple upper contact 3311 and multiple separator perforate 3321.
In addition, film switch circuit 33 more comprises multiple holding tank 335 and multiple first light guide section 336, a lower surface that multiple holding tank 335 is revealed in line plate 333 runs through line plate 333 and separator 332, and each holding tank 335 corresponds to a first supporting bracket perforate 311, each light-emitting component 32 is made to be each passed through the first corresponding supporting bracket perforate 311 and to stretch into corresponding holding tank 335.Multiple first light guide section 336 is arranged on the lower surface of line plate 333, and each first light guide section 336 corresponds to a bright dipping region 3011, more than first light guide section 336 is up projected to multiple bright dipping regions 3011 of multiple button 30 in order to be guided in the multiple light beam B* advanced in line plate 333 respectively.According to above-mentioned known, separator 332 and line plate 333 have light-guiding function and use as light guide plate, multiple bright dipping region 3011 is projected to guide multiple light beam B*, that is, separator 332 and line plate 333, with made by optical material, make multiple light beam B* be able to carry out total reflection in separator 332 and line plate 333.In this preferred embodiment, the micro-structural that multiple first light guide section 336 cuts for V-arrangement.
As shown in Figure 3, each element of lighting keyboard 3 is basipetal to put in order as button cap 301, scissor Connection Element 302, flexible member 303, flexible member film 35, film switch circuit 33, supporting bracket 31 and luminous circuit board 34, and light-emitting component 32 is arranged on luminous circuit board 34, thickness due to light-emitting component 32 is greater than supporting bracket 31, therefore light-emitting component 32 is positioned within film switch circuit 33 and supporting bracket 31, and multiple light beam B* that multiple light-emitting component 32 produces can project and enter film switch circuit 33.Wherein, each button cap 301 includes multiple bright dipping region 3011, and each bright dipping region 3011 corresponds to letter or a symbol, such as, in button cap 301, the bright dipping region 3011 of left corresponds to alphabetical A, and in button cap 301,3011, the bright dipping region of left corresponds to phonetic symbol ㄇ.
The luminous situation of following explanation lighting keyboard 3.When lighting keyboard 3 is operated by driving, multiple light-emitting component 32 produces multiple light beam B*, and because supporting bracket 31 part covers the exiting surface of multiple light-emitting component 32, therefore multiple light beam B* is covered by supporting bracket 31.But, supporting bracket 31 is provided with multiple first guide-lighting inclined-plane 3111, make multiple light beam B* directed through multiple first guide-lighting inclined-plane 3111, and multiple light beam B* enters separator 332 and the line plate 333 of film switch circuit 33.In film switch circuit 33, multiple light beam B* carries out total reflection in separator 332 and line plate 333, when multiple light beam B* is projected to multiple first light guide section 336, multiple first light guide section 336 destroys the total reflection of multiple light beam B* and is up projected by multiple light beam B*.Now, multiple light beam B* is projected to multiple bright dipping region 3011 through film switch circuit 33 and multiple transmission region 351, makes multiple button 30 luminous.
Specifically have two, first, the first supporting bracket perforate 311 due to supporting bracket 31 is provided with the first guide-lighting inclined-plane 3111, the region that supporting bracket 31 covers the exiting surface of multiple light-emitting component 32 is reduced, therefore the light quantity that projection enters the multiple light beam B* in film switch circuit 33 can be increased, with improving luminous efficiency.The second, in this preferred embodiment, multiple first light guide section 336 is arranged on the lower surface of line plate 333, and in other preferred embodiments, multiple first light guide section also can be arranged on the lower surface of wiring board or the lower surface of separator.
Moreover the present invention more provides one second preferred embodiment.Be the structural profile schematic diagram of lighting keyboard of the present invention in the second preferred embodiment please refer to Fig. 5 and Fig. 6, Fig. 5, and Fig. 6 is the partial structurtes decomposing schematic representation of lighting keyboard of the present invention in the second preferred embodiment.Lighting keyboard 4 comprises multiple button 40, supporting bracket 41, multiple light-emitting component 42 (only showing two in figure), light guide plate 43, film switch circuit 44, luminous circuit board 45, light-reflecting portion 46 and a flexible member film 47.Multiple button 40 is revealed in a upper surface of lighting keyboard 4.Each button 40 comprises button cap 401, Connection Element 402 and a flexible member 403, and button cap 401 has multiple bright dipping region 3011.The structure of the lighting keyboard 4 of this preferred embodiment and operation situation system identical haply with the lighting keyboard 3 of aforementioned first preferred embodiment, its something in common then no longer adds explanation.
And this both difference is as described below.First, the supporting bracket 41 of the lighting keyboard 4 of this preferred embodiment comprises one first supporting bracket perforate 411,1 second supporting bracket perforate 412 and multiple 3rd supporting bracket perforate 413.First supporting bracket perforate 411 is the light-emitting component 42 corresponding to Fig. 5 left, the light-emitting component 42 of Fig. 5 left is made to stretch into the first supporting bracket perforate 411, and the second supporting bracket perforate 412 is the light-emitting component 42 corresponding to Fig. 5 right, the light-emitting component 42 of Fig. 5 right is made to stretch into the second supporting bracket perforate 412.Wherein, the first supporting bracket perforate 411 has one first guide-lighting inclined-plane 4111, and the first guide-lighting inclined-plane 4111 is towards light guide plate 43, to increase the light quantity that projection enters multiple light beam B* of light guide plate 43.
Secondly, the lighting keyboard 4 of this preferred embodiment more includes light guide plate 43 and light-reflecting portion 46.Light guide plate 43 is arranged at the below of supporting bracket 41, in order to the multiple bright dipping regions 4011 guiding multiple light beam B* to be projected on multiple button 40 through multiple 3rd supporting bracket perforate 413, light guide plate 43 comprises multiple second light guide section 431 and multiple light guide plate perforate 432, and each second light guide section 431 corresponds to a 3rd supporting bracket perforate 413.Multiple second light guide section 431 is arranged at a lower surface of light guide plate 431 and lays respectively at the below of the 3rd corresponding supporting bracket perforate 413, in order to guide multiple light beam B* up to project, multiple light beam B* is made to be projected to multiple bright dipping regions 4011 of multiple button 40 through multiple 3rd supporting bracket perforate 413.And multiple light guide plate perforate 432 runs through light guide plate 43, and each light guide plate perforate 432 corresponds to a first supporting bracket perforate 411 or a second supporting bracket perforate 412, each light-emitting component 42 is made sequentially to stretch into corresponding light guide plate perforate 432 and the first supporting bracket perforate 411 (or second supporting bracket perforate 412) and be projected multiple light beam B* to light guide plate 43 and film switch circuit 44.In this preferred embodiment, the micro-structural that multiple second light guide section 431 cuts for V-arrangement.
As for light-reflecting portion 46, light-reflecting portion 46 is arranged at the below of light guide plate 43, makes multiple light beam B* up project and enter light guide plate 43 in order to reflect multiple light beam B*.In this preferred embodiment, light-reflecting portion 46 is the reflective ink be arranged at mode of printing on the lower surface of light guide plate 43.And in another preferred embodiment, light-reflecting portion also can adopt a reflector.
Next, the structure of the upper wiring board 441 of the film switch circuit 44 of this preferred embodiment, separator 442, line plate 443 and multiple key switch 444 is all identical with the film switch circuit 33 in the first preferred embodiment, and difference is, film switch circuit 44 more comprises multiple holding tank 445 (showing two in figure) and multiple second light guide section 446.Each holding tank 445 corresponds to a first supporting bracket perforate 411 or a second supporting bracket perforate 412, and multiple holding tank 445 is revealed on a lower surface of line plate 443, each light-emitting component 42 is made to be each passed through the first corresponding supporting bracket perforate 411 or the second supporting bracket perforate 412 and to stretch into corresponding holding tank 445.Multiple second light guide section 446 is arranged at the lower surface of line plate 443 and between multiple 3rd supporting bracket perforate 413, is up projected to multiple bright dipping regions 4011 of multiple button 40 in order to be guided in the multiple light beam B* advanced in line plate 443.According to above-mentioned known, line plate 443 has light-guiding function, and to guide multiple light beam B* to be projected to multiple bright dipping region 4011, that is line plate 443, with made by optical material, makes multiple light beam B* be able to carry out total reflection in line plate 443.
As shown in Figure 6, each element of lighting keyboard 4 is basipetal to put in order as button cap 401, Connection Element 402, flexible member 403, film switch circuit 44, supporting bracket 41, light guide plate 43, light-reflecting portion 46 and luminous circuit board 45, and multiple light-emitting component 42 is arranged on luminous circuit board 45, thickness due to light-emitting component 42 is greater than light guide plate 43, therefore multiple light-emitting component 42 sequentially stretches into corresponding multiple light guide plate perforates 432, first supporting bracket perforate 411 (or second supporting bracket perforate 412) and multiple holding tank 445 and be positioned at film switch circuit 44, supporting bracket 41, within light guide plate 43 and light-reflecting portion 46, and multiple light beam B* that multiple light-emitting component 42 produces can project respectively and enter light guide plate 43 and film switch circuit 44.
The luminous situation of following explanation lighting keyboard 4.When lighting keyboard 4 is operated by driving, the multiple light-emitting components 42 sequentially stretching into multiple light guide plate perforate 432, first supporting bracket perforate 411 (or second supporting bracket perforate 412) and multiple holding tank 445 produce multiple light beam B*, and segment beam B* in multiple light beam B* in supporting bracket 41 bottom row so that enter light guide plate 43, on the other hand, the segment beam B* in multiple light beam B* then advances in the top of supporting bracket 41 and enters line plate 443.In light guide plate 43, carried out total reflection by the multiple light beam B* conducted in light guide plate 43, when multiple light beam B* is projected to multiple second light guide section 431, multiple second light guide section 431 destroys the total reflection of multiple light beam B* and is up projected by multiple light beam B*.Now, multiple light beam B* is each passed through multiple 3rd supporting bracket perforate 413 and is projected to multiple bright dipping region 4011 through film switch circuit 44, makes multiple button 40 luminous.
In film switch circuit 44, in line plate 443, total reflection is carried out by the multiple light beam B* conducted in line plate 443, when multiple light beam B* is projected to multiple first light guide section 446 close to multiple 3rd supporting bracket perforate 413, multiple first light guide section 446 destroys the total reflection of multiple light beam B* and is up projected by multiple light beam B*.Now, multiple light beam B* leaves film switch circuit 44 and is projected to multiple bright dipping region 4011, to promote the illumination effect of multiple button 40 further.
Specifically have two, the first, multiple holding tank 445 does not run through line plate 443, and multiple light beams that the light-emitting component 42 stretching into holding tank 445 is produced are projected to line plate 443, as shown in Figure 5.Second, the first supporting bracket perforate 411 due to supporting bracket 41 is provided with the first guide-lighting inclined-plane 4111, the region that supporting bracket 41 covers the exiting surface of light-emitting component 42 is reduced, therefore the light quantity that projection enters the multiple light beam B* in light guide plate 43 can be increased, with improving luminous efficiency.On the other hand, because the second supporting bracket perforate 412 of supporting bracket 41 is not provided with guide-lighting inclined-plane, therefore multiple light beam B* that the light-emitting component 42 that the light quantity that multiple light beam B* that the light-emitting component 42 of Fig. 5 right produces are projected to light guide plate 43 is less than Fig. 5 left produces are projected to the light quantity of light guide plate 43.That is, lighting keyboard of the present invention can adjust the light quantity that projection enters the light beam of light guide plate by whether arranging guide-lighting inclined-plane, such as, the place that luminous efficiency is lower in lighting keyboard arranges guide-lighting inclined-plane, and promotes its luminous efficiency.
Moreover the present invention more provides one the 3rd preferred embodiment.Refer to Fig. 7, it is the structural profile schematic diagram of lighting keyboard of the present invention in the 3rd preferred embodiment.Lighting keyboard 5 comprises multiple button 50, supporting bracket 51, multiple light-emitting component 52 (only showing in figure), light guide plate 53, film switch circuit 54, luminous circuit board 55, light-reflecting portion 56 and a flexible member film 57.Multiple button 50 is revealed in a upper surface of lighting keyboard 3.Each button 50 comprises button cap 501, Connection Element 502 and a flexible member 503, and each button cap 501 has a bright dipping region 5011.Supporting bracket 51 comprises one first supporting bracket perforate 511 and multiple second supporting bracket perforate 512.
The structure of the lighting keyboard 5 of this preferred embodiment and operation situation identical haply with the lighting keyboard 4 of aforementioned second preferred embodiment, its something in common then no longer adds explanation.And this both difference has four, first, film switch circuit 54 comprises wiring board 541 on, one separator 542 and once wiring board 543, multiple holding tank 545 (only showing in figure) and multiple second light guide section 546, upper wiring board 541, the structure of separator 542 and line plate 543 is identical with aforementioned first preferred embodiment haply, and only have narrow difference, this difference is, a lower surface that multiple holding tank 545 is revealed in line plate 543 runs through line plate 543, each holding tank 545 corresponds to a first supporting bracket perforate 511, make light-emitting component 52 through the first corresponding supporting bracket perforate 511 and stretch into corresponding holding tank 545, multiple light beam B* that light-emitting component 52 produces then are entered separator 542.Multiple second light guide section 546 is arranged at the lower surface of line plate 543 and close to multiple second supporting bracket perforate 512, is up projected to multiple bright dipping regions 5011 of multiple button 50 in order to be guided in the multiple light beam B* advanced in line plate 543.In this preferred embodiment, multiple second light guide sections 531 of light guide plate 53 are texture structure, and the micro-structural that multiple first light guide sections 546 in line plate 543 cut for V-arrangement.
Second, multiple light-emitting component 52 to be arranged on luminous circuit board 55 and to be positioned at the side of light guide plate 53 and film switch circuit 54, make each light-emitting component 52 stretch into the first corresponding supporting bracket perforate 511 and holding tank 545, and produce multiple light beam B* and project the separator 542 entering light guide plate 53 and film switch circuit 54.In this preferred embodiment, luminous circuit board 56 is a printed circuit board (PCB).3rd, each second light guide section 531 in light guide plate 53 is corresponding to two bright dipping regions 5011 on a button cap 501 and two the 3rd supporting bracket perforates 513.
4th, first supporting bracket perforate 511 has one first guide-lighting inclined-plane 5111 and one second guide-lighting inclined-plane 5112, and the first guide-lighting inclined-plane 5111 and the second guide-lighting inclined-plane 5112 form a pointed edge, wherein the first guide-lighting inclined-plane 5111 is in the face of light guide plate 53, and the second guide-lighting inclined-plane 5112 is in the face of film switch circuit 54.When light-emitting component 52 produces multiple light beam B*, first guide-lighting inclined-plane 5111 guides comparatively multiple beam B* to enter light guide plate 53, and the second guide-lighting inclined-plane 5112 guides comparatively multiple beam B* to enter film switch circuit 54, the light quantity of the light beam B* covered by supporting bracket 51 is reduced.Therefore, the light quantity of specific region can be promoted.
In addition, the present invention more provides one the 4th preferred embodiment.Refer to Fig. 8, it is the structural profile schematic diagram of lighting keyboard of the present invention in the 4th preferred embodiment.Lighting keyboard 6 comprises multiple button 60, supporting bracket 61, multiple light-emitting component 62 (only showing two in figure), light guide plate 63, film switch circuit 64, luminous circuit board 65, light-reflecting portion 66 and a flexible member film 67.Multiple button 60 is revealed in a upper surface of lighting keyboard 3.Each button 60 comprises button cap 601, Connection Element 602 and a flexible member 603, and each button cap 601 has a bright dipping region 6011.Supporting bracket 61 comprises one first supporting bracket perforate 611,1 second supporting bracket perforate 612 and multiple 3rd supporting bracket perforate 613.
The structure of the lighting keyboard 6 of this preferred embodiment and operation situation system identical haply with the lighting keyboard 3 of aforementioned first preferred embodiment, its something in common then no longer adds explanation.Five are had as its difference, first, the film switch circuit 64 of this preferred embodiment is not provided with multiple first light guide section, although film switch circuit 64 cannot guide multiple light beam B* to be projected to multiple bright dipping region 6011, but multiple light beam B* can carry out in the process of total reflection in upper wiring board 641, separator 642 and line plate 643, a little light beam B* overflows by film switch circuit 64, and this little light beam B* also can the luminous efficiency of a little lifting lighting keyboard.Certainly, in another preferred embodiment, film switch circuit also can be provided with multiple first light guide section on the lower surface of upper wiring board, to guide multiple light beam, and promotes the luminous efficiency of lighting keyboard further.
The second, in this preferred embodiment, light-reflecting portion 66 is a reflector.One side 661 of light-reflecting portion 66 forms a bending structure, and the side 633 of the coated light guide plate 63 of bending structure that this side 661 is formed, with the phenomenon avoiding light guide plate 63 that side 633 light leak occurs.And reflector 66 comprises multiple reflector perforate 662, corresponding to multiple light-emitting component 62, when be arranged at the multiple light-emitting components 62 on luminous circuit board 65 and sequentially stretch into multiple reflector perforates 662 of light-reflecting portion 66, multiple light guide plate perforates 632 of light guide plate 63, the first supporting bracket perforate 611 (or second supporting bracket perforate 612) of supporting bracket 61 and film switch circuit 64 multiple holding tank 645 time, multiple light beam B* that multiple light-emitting component 62 produces are entered light guide plate 63 and film switch circuit 64.
3rd, each button cap 601 only has a bright dipping region 6011, and multiple second perforates 612 in supporting bracket 61 are corresponding to multiple bright dipping region 6011, that is, each button 60 on the lighting keyboard 6 of this preferred embodiment only have a letter or symbol, the key board unit of the such as U.S..4th, first supporting bracket perforate 611 has the first guide-lighting inclined-plane 6111, and the first guide-lighting inclined-plane 6111 is in the face of light guide plate 63, and the second supporting bracket perforate 612 has the second guide-lighting inclined-plane 6121, and the second guide-lighting inclined-plane 6121 is in the face of film switch circuit 64.When light-emitting component 52 produces multiple light beam B*, the first guide-lighting inclined-plane 6111 guides most of light beam B* to enter light guide plate 63, and the light quantity making to project the light beam B* entering light guide plate 53 increases.And the second guide-lighting inclined-plane 6121 guides most of light beam B* to enter film switch circuit 64, the light quantity making to project the light beam B* entering light guide plate 63 reduces.Therefore, the light quantity of a specific region (such as comparatively dark areas) can be promoted, and reduce the light quantity of another specific region (such as brighter areas), make the illumination effect homogenizing of multiple button 60.
5th, film switch circuit 64 to comprise on one wiring board 641, separator 642 and once wiring board 643 and multiple holding tank 645.Upper wiring board 641, the structure of separator 642 and line plate 643 is identical with aforementioned first preferred embodiment haply, and only have little bit different, its difference is, a lower surface that multiple holding tank 645 is revealed in line plate 643 runs through line plate 643, separator 642 and upper wiring board 641, and each holding tank 645 corresponds to first perforate 611, each light-emitting component 62 is made to be each passed through the first corresponding perforate 611 and to stretch into corresponding holding tank 645, and multiple light-emitting component 62 is covered by flexible member film 67 and is not revealed in outside film switch circuit 64.Whereby, multiple light beam B* that multiple light-emitting component 62 produces then are able to projection and enter wiring board 641, separator 642 and line plate 643, that is multiple light beam B* carries out total reflection in upper wiring board 641, separator 642 and line plate 643.
According to above-mentioned each preferred embodiment, be provided with the light-emitting component had compared with heavy thickness in lighting keyboard of the present invention, the luminous efficiency of the light beam that light-emitting component is exported is higher.Further, in lighttight supporting bracket, be provided with the first supporting bracket perforate corresponding to light-emitting component, make light-emitting component pass the first supporting bracket perforate and project multiple light beam to film switch circuit, to promote the illumination effect of lighting keyboard a little.Therefore, illuminated keyboard of the present invention can adopt the light guide plate of less thickness and carry out lightening, and adopts the light-emitting component compared with heavy thickness, and has preferably luminous efficiency, meanwhile, also has lower-cost advantage compared with the light-emitting component of heavy thickness.In addition, lighting keyboard of the present invention is provided with the first guide-lighting inclined-plane by the first supporting bracket perforate, to control to project the light quantity of the light beam entering light guide plate, makes lighting keyboard can produce uniform illumination effect.
The foregoing is only preferred embodiment of the present invention, and be not used to limit right of the present invention, under therefore all other does not depart from disclosed spirit, the equivalence that completes changes or modifies, and all should be contained in right of the present invention.
Claims (14)
1. a lighting keyboard, comprising:
Multiple button, is revealed in a upper surface of this key board unit, and each this button has at least one bright dipping region;
One supporting bracket, is arranged at the below of the plurality of button and is connected to the plurality of button, and in order to fixing the plurality of button thereon, and this supporting bracket has one first supporting bracket perforate;
One light-emitting component, is positioned at the below of the plurality of button and stretches into this first supporting bracket perforate, in order to produce multiple light beam; And
One light guide plate, is arranged at below or the top of this supporting bracket, in order to guide the plurality of beam projection to the plurality of bright dipping region; Wherein this first supporting bracket perforate has one first guide-lighting inclined-plane, projects enter this light guide plate in order to guide the plurality of light beam to pass through.
2. lighting keyboard as claimed in claim 1, wherein this light guide plate is a thin film circuit switch with light-guiding function, be arranged at the top of this supporting bracket, and this film switch circuit comprises:
Wiring board on one, has multiple upper contact;
One separator, is positioned at the below of wiring board on this, and this separator has the multiple separator perforates corresponding to the plurality of upper contact, and when this film switch circuit is touched, the plurality of upper contact stretches into the plurality of separator perforate; And
Wiring board once, is positioned at the below of this separator, has corresponding to the multiple lower contact of the plurality of upper contact and forms multiple key switch with the plurality of upper contact; At least one wherein on this in wiring board, this separator and this line plate has light-guiding function, to guide the plurality of beam projection to the plurality of bright dipping region.
3. lighting keyboard as claimed in claim 2, wherein this film switch circuit also comprises:
One holding tank, a lower surface being revealed in this line plate corresponds to this first supporting bracket perforate; Wherein this light-emitting component passes this first supporting bracket perforate and stretches into this holding tank; And
Multiple first light guide section, is arranged at this lower surface of this line plate, in order to the plurality of bright dipping region guiding the plurality of light beam to be up projected to the plurality of button.
4. lighting keyboard as claimed in claim 2, wherein this film switch circuit also comprises:
One holding tank, a lower surface being revealed in this line plate runs through this line plate, and this holding tank corresponds to this first supporting bracket perforate; Wherein this light-emitting component passes this first supporting bracket perforate and stretches into this holding tank; And
Multiple first light guide section, is arranged at a lower surface of at least one in this separator and this line plate, in order to the plurality of bright dipping region guiding the plurality of light beam to be up projected to the plurality of button.
5. lighting keyboard as claimed in claim 2, wherein this film switch circuit also comprises:
One holding tank, is revealed in this line plate and runs through this line plate and this separator, and this holding tank corresponds to this first supporting bracket perforate; Wherein this light-emitting component passes this first supporting bracket perforate and stretches into this holding tank; And
Multiple first light guide section, is arranged at this lower surface of at least one in wiring board on this, this separator and this line plate, in order to the plurality of bright dipping region guiding the plurality of light beam to be up projected to the plurality of button.
6. lighting keyboard as claimed in claim 1, wherein this supporting bracket also comprises multiple second supporting bracket perforate, and this light guide plate is arranged at the below of this supporting bracket, and this light guide plate comprises at least one second light guide section, be arranged at a lower surface of this light guide plate and be positioned at the below of the plurality of second supporting bracket perforate, in order to guide the plurality of light beam up to project, and be projected to the plurality of bright dipping region of the plurality of button through the plurality of second supporting bracket perforate.
7. lighting keyboard as claimed in claim 6, wherein the plurality of second light guide section is micro-structural, texture structure or the light guide ink that V-arrangement cuts.
8. lighting keyboard as claimed in claim 6, wherein this light guide plate also comprises a light guide plate perforate, run through this light guide plate and be positioned at the below of this first supporting bracket perforate, this light-emitting component is made sequentially to stretch into this light guide plate perforate and this first supporting bracket perforate, to project the plurality of light beam to this light guide plate.
9. lighting keyboard as claimed in claim 1, wherein this first guide-lighting inclined-plane is towards this light guide plate, to increase the light quantity that projection enters multiple light beams of this light guide plate.
10. lighting keyboard as claimed in claim 1, also comprises a luminous circuit board, is arranged at the side of this light guide plate or the below of this light guide plate, in order to arrange this light-emitting component thereon, and provide an electric power to give this light-emitting component.
11. lighting keyboards as claimed in claim 1, also comprise a light-reflecting portion, are arranged at the below of this light guide plate, make the plurality of light beam up project and enter this light guide plate in order to reflect the plurality of light beam.
12. lighting keyboards as claimed in claim 11, wherein this light-reflecting portion is a lower surface being arranged at this light guide plate with mode of printing, and this light-reflecting portion is reflectance ink.
13. lighting keyboards as claimed in claim 11, wherein this light-reflecting portion is a reflector, and this reflector comprises:
One reflector perforate, stretches into this reflector perforate for this light-emitting component; And
One bending structure, is arranged at least one side of this reflector, in order at least one side of this light guide plate coated.
14. lighting keyboards as claimed in claim 1, wherein each this button comprises:
One button cap, is revealed in this upper surface of this key board unit, and this at least one bright dipping region is arranged on this button cap;
One Connection Element, between this supporting bracket and this button cap, in order to connect this supporting bracket and this button cap and to make this button cap move up and down relative to this supporting bracket; And
One flexible member, between this supporting bracket and this button cap, in order to provide an elastic force to give this button cap, makes this button cap reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257068.3A CN104252988A (en) | 2013-06-25 | 2013-06-25 | Light emitting keyboard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310257068.3A CN104252988A (en) | 2013-06-25 | 2013-06-25 | Light emitting keyboard device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610186462.6A Division CN105761991A (en) | 2013-06-25 | 2013-06-25 | Light-emitting keyboard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104252988A true CN104252988A (en) | 2014-12-31 |
Family
ID=52187807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310257068.3A Pending CN104252988A (en) | 2013-06-25 | 2013-06-25 | Light emitting keyboard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104252988A (en) |
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| CN105655177A (en) * | 2016-03-09 | 2016-06-08 | 江苏传艺科技股份有限公司 | Backlight thin-film switch |
| CN106340412A (en) * | 2015-07-06 | 2017-01-18 | 致伸科技股份有限公司 | Luminous keyboard |
| CN106340413A (en) * | 2015-07-06 | 2017-01-18 | 致伸科技股份有限公司 | Luminous keyboard |
| CN106340414A (en) * | 2015-07-06 | 2017-01-18 | 致伸科技股份有限公司 | Luminous keyboard |
| CN112757506A (en) * | 2020-12-31 | 2021-05-07 | 青岛建设集团有限公司 | Slope and wall body joint slotting device with centralizing and limiting functions |
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Application publication date: 20141231 |
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