CN101441946A - Energy-saving luminous module, key-press structure and keyboard with the same - Google Patents
Energy-saving luminous module, key-press structure and keyboard with the same Download PDFInfo
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- CN101441946A CN101441946A CNA2007101868172A CN200710186817A CN101441946A CN 101441946 A CN101441946 A CN 101441946A CN A2007101868172 A CNA2007101868172 A CN A2007101868172A CN 200710186817 A CN200710186817 A CN 200710186817A CN 101441946 A CN101441946 A CN 101441946A
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Abstract
The invention provides an energy saving luminous module, a key structure provided with the luminous module and a keyboard. The energy saving luminous module comprises a light guide plate, a light source and a reflection plate, wherein the light guide plate is provided with a light incident surface, a bottom surface intersected with the light incident surface and a light emergent surface opposite to the bottom surface, and the bottom surface is provided with a plurality of concave spots; the light source is arranged on side of the light incident surface of the light guide plate; and the reflection plate is arranged on the other side of the light guide plate and the bottom side, is used for reflecting the light source to enter the light guide plate, is contacted with a circular arc surface of the concave spots at the bottom surface of the light guide plate through the light source to reflect the light to the light emergent surface, and makes the circular arc surface of the concave spots gather the light source to strengthen the illumination, thereby effectively saving energy source.
Description
Technical field
The present invention refers to the energy-conservation light emitting module of a kind of energy uniformly light-emitting and the saving energy especially relevant for a kind of light emitting module.
Background technology
Progress and development along with science and technology, electronic products such as electronic product such as mobile phone, personal digital aid (PDA), mobile computer, these electronic products all have press-key structure, and with this press-key structure in order to the message transmission between user and the electronic product to be provided, or carry out the various difference in functionalitys of electronic product.In addition, for providing the user can be under the situation of no light source irradiation, but each button of operational and controlled key button structure still, so, a light guide plate and a light source are arranged, the light that utilizes light source to irradiate in the internal configurations of key-press module, can break forth via the reflection of light guide plate, and allow the user in dim environment, clearly pick out each key position, figure and numeral, and pressing operation easily.
Above-mentioned light source generally adopts light-emitting diode (Light-Emitting Diode, LED) lamp, and above-mentioned LED lamp generally all distributes and is disposed between the button, and see through the position, the direct directive button character place of light that above-mentioned light guide plate is sent above-mentioned LED lamp, therefore to make each button can both send uniform brightness, upward different demands is arranged in the control of LED lamp quantity along with the design difference, the press-key structure of general computer keyboard needs more than 6 at least, this design not only increases cost, and increases the power consumption and the energy of press-key structure integral body.The LED lamp is disposed in the actual use of collocation method between the button and but has the uneven shortcoming of illumination effect in addition.The light that each LED lamp is dispersed can little by little weaken along with spreading distance, so the phenomenon of non-uniform light just can occur.When the LED lamp is lighted, just can see clearly that the button light near LED lamp place is more intense, button slightly a little further then can compare secretly, though so the light source setting has reached the effect of illumination, yet the light of computer keyboard integral body is inhomogeneous, influences the impression of vision.
Therefore, how to save the cost and the energy, and solve the phenomenon of press-key structure non-uniform light, real industry problem demanding prompt solution for this reason.
Summary of the invention
The object of the present invention is to provide a kind of luminous uniform energy-conservation light emitting module.
Another object of the present invention is to provide a kind of energy-conservation light emitting module that can assemble light source, increase brightness and save the energy.
Another purpose of the present invention is to provide a kind of luminous uniform press-key structure.
A further object of the present invention is to provide a kind of press-key structure that can assemble light source, increase brightness and save the energy.
For reaching the energy-conservation light emitting module of above-mentioned purpose, comprise: a light guide plate has bottom surface and an exiting surface relative with this bottom surface that an incidence surface, intersects with this incidence surface, and is provided with a plurality of concave points in above-mentioned bottom surface; One light source is located at incidence surface one side of above-mentioned light guide plate; And a reflecting plate, place the bottom side of above-mentioned light guide plate, in order to above-mentioned source reflection is entered above-mentioned light guide plate.
The stepped arrangement setting of a plurality of concave points of above-mentioned light guide plate.
A plurality of concave points of above-mentioned light guide plate are more healed at the end near the height of above-mentioned light source place concave point, and are then higher from the heal height of part concave point far away of above-mentioned light source.
The shape of above-mentioned concave point is semi-circular body.
The shape of above-mentioned concave point is any geometric type body.
Above-mentioned light source is a light-emitting diode (LED) or is any light-emitting component.
Press-key structure for the electronic product that reaches above-mentioned purpose, comprise: a plurality of buttons and an energy-conservation light emitting module, this energy-conservation light emitting module, place the downside of above-mentioned plural button, and comprise: a light guide plate, have bottom surface and an exiting surface relative that an incidence surface, intersects with this incidence surface, and be provided with a plurality of concave points in above-mentioned bottom surface with this bottom surface; One light source is located at incidence surface one side of above-mentioned light guide plate; And a reflecting plate, place the bottom side of above-mentioned light guide plate, in order to above-mentioned source reflection is entered above-mentioned light guide plate.
The press-key structure of above-mentioned electronic product is the press-key structure of a computer keyboard, mobile phone press-key construction, PDA(Personal Digital Assistant), press-key structure or any press-key structure with electronic product of button of player.
The stepped arrangement setting of a plurality of concave points of above-mentioned light guide plate.
A plurality of concave points of above-mentioned light guide plate are more healed at the end near the height of above-mentioned light source place concave point, and are then higher from the heal height of part concave point far away of above-mentioned light source.
The shape of above-mentioned concave point is semi-circular body.
The shape of above-mentioned concave point is any geometric type body.
Above-mentioned light source is a light-emitting diode (LED) or is any light-emitting component.
Energy-conservation light emitting module of the present invention, run into the arc surface of the concave point of above-mentioned bottom surface of light guide plate by the light of above-mentioned light source, assemble light source on this arc surface and make, to increase brightness, and then save the energy effectively, and by the stepped arrangement setting of the concave point of light guide plate of the present invention, and make the arc surface of the concave point of light guide plate can on average be subjected to light, and then the arc surface light reflected of the concave point of light guide plate is guided to above-mentioned exiting surface uniformly light-emitting.
Description of drawings
Fig. 1 shows the end view of the energy-conservation light emitting module of the present invention.
Fig. 2 shows that the energy-conservation light emitting module of the present invention is applied to the schematic diagram of a computer keyboard.
The vertical view of Fig. 3 displayed map 2 keyboards.
The main element symbol description:
The energy-conservation light emitting module of 1---
The press-key structure of 2---electronic product
The 10---light guide plate
The 11---incidence surface
The 12---bottom surface
The 13---exiting surface
The 14---concave point
The 15---circular arc
The 20---light source
The 30---reflecting plate
The 40---keycap
The last fixed part of 41---
The character that the 42---hollow out is transparent
The 50---Holder for scissors
The last articulated section of 51---
Articulated section under the 52---
60---elasticity is touched body
61---presses portion
The 70---film circuit board
The 80---base plate
Fixed part under the 81---
Embodiment
Please refer to Fig. 1, it shows the side cutaway view of the energy-conservation light emitting module of the present invention.The energy-conservation light emitting module 1 of the present invention comprises: a light guide plate 10 have bottom surface 12 that an incidence surface 11, intersects with this incidence surface 11 and an exiting surface 13 relative with this bottom surface 12, and above-mentioned bottom surface 12 is provided with a plurality of concave points 14; One light source 20 is located at incidence surface 11 1 sides of above-mentioned light guide plate 10; And a reflecting plate 30, place the opposite side and the bottom side of above-mentioned light guide plate 10, in order to above-mentioned light source 20 reflections are entered above-mentioned light guide plate 10.
A plurality of concave points 14 of above-mentioned light guide plate 10 have an arc surface 15, and distance stepped arrangement setting with power according to light source 20 throw lights, it is more healed at the end near the height of light source 20 part concave points 14, then higher from the heal height of part concave point 14 far away of light source 20, make the arc surface 15 of the concave point 14 of light guide plate 10 can on average be subjected to light, and then uniformly light-emitting, in present embodiment, the concave point 14 of light guide plate 10 of the present invention be shaped as semi-circular body.The concave point 14 of light guide plate 10 of the present invention in addition also or be any geometric type body, this knows the knowledgeable usually for tool in the technical field and all can spread to and the person of understanding, does not reach to literary composition and gives unnecessary details it so do not give icon in addition at this.
The energy-conservation light emitting module 1 of the present invention, the incidence surface 11 of going into above-mentioned light guide plate 10 by above-mentioned light source 20 throw lights enters in the above-mentioned light guide plate 10, by reflecting plate 30 the light reflection is entered above-mentioned light guide plate 10 again, and make above-mentioned light source 20 run into the arc surface 15 of concave point 14 of above-mentioned bottom surface of light guide plate 12 and reflection ray to above-mentioned exiting surface 13, make the arc surface 15 of above-mentioned concave point 14 assemble light source simultaneously to increase brightness, and save the energy effectively, and prevent leakage of light by this reflecting plate 30, and light source 20 is riddled in the above-mentioned light guide plate 10 as fluid, so that enough light sources 20 to be provided, the stepped arrangement setting of arc surface by concave point 14 15 again, and the arc surface 15 that makes the concave point 14 of light guide plate 10 can on average be subjected to light, and then arc surface 15 light reflected of the concave point 14 of light guide plate 10 are guided to above-mentioned exiting surface 13 uniformly light-emittings.
Please refer to Fig. 2, it shows that the energy-conservation light emitting module 1 of the present invention is applied to the side cutaway view of the press-key structure 2 of an electronic product.In present embodiment, the press-key structure 2 of this electronic product is an example with a computer keyboard, and in this figure, does not show above-mentioned light source 20 and only explains with two buttons, and all the other press-key structures all by that analogy.Above-mentioned keyboard comprises: a plurality of keycaps 40, and these both sides, keycap 40 below respectively are provided with fixed part 41 on; One Holder for scissors 50, this Holder for scissors 50 are provided with pivot portion 51 and following pivot portion 52; One elasticity is touched body 60, and this elasticity shake-up body 60 is provided with one and presses portion 61; One film circuit board 70, this film circuit board 70 is made up of three layer circuit boards of upper strata, middle level, lower floor; One base plate 80, this base plate 80 are provided with the corresponding following fixed part 81 of going up fixed part 41; And an energy-conservation light emitting module 1, place between above-mentioned film circuit board 70 and the above-mentioned base plate 80.And when desiring integral keyboard, earlier that the last articulated section 51 of above-mentioned Holder for scissors 50 is fixing with last fixed part 41 pivot joints of above-mentioned keycap 40, and above-mentioned elasticity shake-up body 60 places between above-mentioned keycap 40 and the above-mentioned film circuit board 70, and be bonded on the above-mentioned film circuit board 70 by a viscose, and the following fixed part 81 of above-mentioned base plate 80 by passing above-mentioned film circuit board 70 and energy-conservation light emitting module 1 with following articulated section 52 clampings of above-mentioned Holder for scissors 50, promptly finish the assembling of keyboard.
Please continue also to cooperate with reference to figure 3 with reference to figure 2, it shows that the energy-conservation light emitting module 1 of the present invention is applied to the vertical view of the press-key structure 2 of an electronic product.In present embodiment, the press-key structure 2 of this electronic product is an example with a computer keyboard, and in this figure, only explains with two buttons.Each keycap of above-mentioned keyboard is provided with corresponding specific character 42, and this character 42 all is the transparent design of hollow out, in this embodiment, with D and F is example, by among the figure as can be known, it is transparent that the font of this two button is hollow out, and because of the stepped arrangement setting of the arc surface 15 of the concave point 14 of above-mentioned light guide plate 10, make the concave point 14 of the light guide plate 10 of this two buttons D and F downside present one high and one low setting, above-mentioned light source 20 then places a side of above-mentioned F button, and the direction of ray cast is to be throwed toward the D direction by the direction of above-mentioned F button, by the incidence surface 11 of light source 20 throw lights to above-mentioned light guide plate 10, go in the above-mentioned light guide plate 10 by reflecting plate 30 reflection rays again, arc surface 15 back reflection light to the above-mentioned exiting surface 13 that makes the light of above-mentioned light source 20 run into the concave point 14 of above-mentioned bottom surface of light guide plate 12 penetrates light, the light that this exiting surface 13 penetrates penetrates the film circuit board 70 that is transparent material or translucent material again and is projected to the button of above-mentioned A and the transparent character 42 of S hollow out, button is luminous to be presented bright and evenly and make, and in luminous process, run into the arc surface 15 of the concave point 14 of above-mentioned bottom surface of light guide plate 12 by the light of above-mentioned light source 20, assemble light source 20 on this arc surface 15 and make, to increase brightness, and then save the energy effectively, and the arrangement setting that the concave point by light guide plate 10 of the present invention 14 is stepped, and the arc surface 15 that makes the concave point 14 of light guide plate 10 can on average be subjected to light, and then makes the button uniformly light-emitting that is projected to the transparent character 42 of above-mentioned hollow out.
In present embodiment, the press-key structure of above-mentioned electronic product also can be the press-key structure of mobile phone press-key construction, PDA(Personal Digital Assistant), press-key structure or any press-key structure with electronic product of button of player.In addition, above-mentioned light source can be the light source of random color, and light source can be light-emitting diode (LED), also or any element that can be luminous.
Energy-conservation light emitting module of the present invention, run into the arc surface of the concave point of above-mentioned bottom surface of light guide plate by the light of above-mentioned light source, assemble light source on this arc surface and make, to increase brightness, and then save the energy effectively, and by the stepped arrangement setting of the concave point of light guide plate of the present invention, and make the arc surface of the concave point of light guide plate can on average be subjected to light, and then the arc surface light reflected of the concave point of light guide plate is guided to above-mentioned exiting surface uniformly light-emitting.
Claims (20)
1. an energy-conservation light emitting module is characterized in that, described energy-conservation light emitting module comprises:
One light guide plate, it has bottom surface and an exiting surface relative with described bottom surface that an incidence surface, intersects with described incidence surface, and is provided with a plurality of concave points in described bottom surface;
One light source is located at incidence surface one side of described light guide plate; And
One reflecting plate places the bottom side of described light guide plate, in order to described source reflection is entered described light guide plate.
2. energy-conservation light emitting module as claimed in claim 1 is characterized in that, the stepped arrangement setting of a plurality of concave points of described light guide plate.
3. energy-conservation light emitting module as claimed in claim 2 is characterized in that, a plurality of concave points of described light guide plate are more healed at the end near the height of described light source place concave point, and is then higher from the heal height of part concave point far away of described light source.
4. energy-conservation light emitting module as claimed in claim 1 is characterized in that the shape of described concave point is semi-circular body.
5. energy-conservation light emitting module as claimed in claim 1 is characterized in that, the shape of described concave point is any geometric type body.
6. energy-conservation light emitting module as claimed in claim 1 is characterized in that, described light source is a light-emitting diode or is any light-emitting component.
7. the press-key structure of an electronic product, this press-key structure comprises: a plurality of buttons and an energy-conservation light emitting module is characterized in that:
Described energy-conservation light emitting module places the downside of described plural button, and comprises:
One light guide plate, it has bottom surface and an exiting surface relative with described bottom surface that an incidence surface, intersects with described incidence surface, and is provided with a plurality of concave points in described bottom surface;
One light source is located at incidence surface one side of described light guide plate; And
One reflecting plate places the bottom side of described light guide plate, in order to described source reflection is entered described light guide plate.
8. the press-key structure of electronic product as claimed in claim 7, it is characterized in that the press-key structure of described electronic product is the press-key structure of a computer keyboard, mobile phone press-key construction, personal digital assistant, press-key structure or any press-key structure with electronic product of button of player.
9. the press-key structure of electronic product as claimed in claim 7 is characterized in that, the stepped arrangement setting of a plurality of concave points of described light guide plate.
10. the press-key structure of electronic product as claimed in claim 9 is characterized in that, a plurality of concave points of described light guide plate are more healed at the end near the height of described light source place concave point, and is then higher from the heal height of part concave point far away of described light source.
11. the press-key structure of electronic product as claimed in claim 7 is characterized in that, the shape of described concave point is semi-circular body.
12. the press-key structure of electronic product as claimed in claim 8 is characterized in that, the shape of described concave point is any geometric type body.
13. the press-key structure of electronic product as claimed in claim 7 is characterized in that, described light source is a light-emitting diode or is any light-emitting component.
14. a computer keyboard, this keyboard comprises: a plurality of keycaps, Holder for scissors, elasticity are touched body, film circuit board, base plate and energy-conservation light emitting module, it is characterized in that:
Described energy-conservation light emitting module places between described film circuit board and the base plate, and described energy-conservation light emitting module comprises:
One light guide plate has bottom surface and an exiting surface relative with described bottom surface that an incidence surface, intersects with described incidence surface, and is provided with a plurality of concave points in described bottom surface;
One light source is located at incidence surface one side of described light guide plate; And
One reflecting plate places the bottom side of described light guide plate, in order to described source reflection is entered described light guide plate.
15. computer keyboard as claimed in claim 14 is characterized in that, described each keycap is provided with corresponding specific character, and described character all is the transparent design of hollow out.
16. computer keyboard as claimed in claim 14 is characterized in that, the stepped arrangement setting of a plurality of concave points of described light guide plate.
17. computer keyboard as claimed in claim 16 is characterized in that, a plurality of concave points of described light guide plate are more healed at the end near the height of described light source place concave point, and are then higher from the heal height of part concave point far away of described light source.
18. computer keyboard as claimed in claim 14 is characterized in that, the shape of described concave point is semi-circular body.
19. computer keyboard as claimed in claim 14 is characterized in that, the shape of described concave point is any geometric type body.
20. computer keyboard as claimed in claim 14 is characterized in that, described light source is a light-emitting diode or is any light-emitting component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101868172A CN101441946A (en) | 2007-11-22 | 2007-11-22 | Energy-saving luminous module, key-press structure and keyboard with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101868172A CN101441946A (en) | 2007-11-22 | 2007-11-22 | Energy-saving luminous module, key-press structure and keyboard with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101441946A true CN101441946A (en) | 2009-05-27 |
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ID=40726322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101868172A Pending CN101441946A (en) | 2007-11-22 | 2007-11-22 | Energy-saving luminous module, key-press structure and keyboard with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101441946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908426A (en) * | 2010-08-09 | 2010-12-08 | 青岛海信电器股份有限公司 | Inductive key and electronic device with same |
| CN108320971A (en) * | 2018-03-09 | 2018-07-24 | 深圳新纳光电科技有限公司 | Illuminated keyboard |
-
2007
- 2007-11-22 CN CNA2007101868172A patent/CN101441946A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908426A (en) * | 2010-08-09 | 2010-12-08 | 青岛海信电器股份有限公司 | Inductive key and electronic device with same |
| CN108320971A (en) * | 2018-03-09 | 2018-07-24 | 深圳新纳光电科技有限公司 | Illuminated keyboard |
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Open date: 20090527 |