CN202940150U - Protective cover and keyboard - Google Patents
Protective cover and keyboard Download PDFInfo
- Publication number
- CN202940150U CN202940150U CN 201220642478 CN201220642478U CN202940150U CN 202940150 U CN202940150 U CN 202940150U CN 201220642478 CN201220642478 CN 201220642478 CN 201220642478 U CN201220642478 U CN 201220642478U CN 202940150 U CN202940150 U CN 202940150U
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- over cap
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- keyboard
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Abstract
The utility model relates to a protective cover and a keyboard. The protective cover comprises a light guide plate, a first flexible layer, a second flexible layer, a light shading layer and a light emitting unit. The light guide plate is provided with a light scattering structure and oppositely-arranged upper and lower surfaces, and the light scattering structure is formed, adjacent to the lower surface, in the light guide plate; the first flexible layer is formed above the upper surface; the second flexible layer is formed below the lower surface; the light shading layer is formed on the first flexible layer and has a transparent notch which is correspondingly formed above the light scattering structure; and the light emitting unit is arranged at one side of the light guide plate, and light emitted by the light emitting unit is guided by the light guide plate to be projected out from the transparent notch. The protective cover covers gaps between keys so that foreign bodies and water vapor can be prevented from entering the inside of the keyboard, and dustproof and waterproof effects are achieved. The keyboard can be luminous under the action of the protective cover so that the visual effect in use can be increased. The protective cover is dismountable, which is conducive to the development of a thin keyboard body.
Description
Technical field
The utility model relates to a kind of over cap and keyboard, especially refers to a kind of keyboard that has the over cap of dustproof, waterproof and lighting function and use this over cap.
Background technology
With regard to present PC user's use habit, keyboard is one of indispensable input equipment, in order to input characters, symbol or numeral.Moreover, the large-sized processing equipment that the consumption electronic products of everyday life contact or industrial quarters are used all need be provided with press-key structure as input unit, to operate above-mentioned electronic product and process equipment.
Along with the development of science and technology, the design of keyboard is variation more and more.The user is when selecting keyboard, and keyboard is except should possessing basic input function, and the visual effect of keyboard also is subject to user's attention.For example, released on the market at present illuminated keyboard, except visually the user being produced attraction, also can be used in the place of night or light deficiency.Therefore, illuminated keyboard has more the market competitiveness.
Illuminated keyboard utilizes backlight module as light source mostly, to reach luminous function.Backlight module comprises light guide plate and luminescence unit.Luminescence unit is arranged at a side of light guide plate, and the light that luminescence unit sends penetrates via the light guide plate guiding.Generally speaking, backlight module is arranged at the below of keyboard board and non-dismountable, so can make the overall volume of keyboard increase widely, is unfavorable for the development of keyboard slimming.
The utility model content
Therefore, one of the purpose of this utility model is to provide a kind of keyboard that has the over cap of dustproof, waterproof and lighting function and use this over cap, to address the above problem.
In order to achieve the above object, a kind of over cap of the novel proposition of this use, this over cap comprise light guide plate, the first pliability layer, the second pliability layer, light shield layer and luminescence unit.Light guide plate has light scattering structure, upper surface and with respect to the lower surface of this upper surface, this light scattering structure is formed in this light guide plate and is adjacent to this lower surface; The first pliability layer is formed on this upper surface; The second pliability layer is formed under this lower surface; Light shield layer is formed on this first pliability layer, and this light shield layer has the printing opacity breach, and this printing opacity breach correspondence is formed at the top of this light scattering structure; Luminescence unit is arranged at a side of this light guide plate, the light that this luminescence unit sends via the guiding of this light guide plate certainly this printing opacity breach project.
As optional technical scheme, this light scattering structure is micro-structural, optical ink structure or UV printing ink structure.
As optional technical scheme, this light scattering structure is formed with word, symbol, letter or its combination.
As optional technical scheme, this first pliability layer has word, symbol, letter or its combination corresponding to this printing opacity indentation, there.
As optional technical scheme, this light guide plate is polycarbonate plate or polymethyl methacrylate plate.
As optional technical scheme, the pliability layer of this first pliability layer for being made by silicon dioxide or titanium dioxide; The pliability layer of this second pliability layer for being made by silicon dioxide or titanium dioxide.
As optional technical scheme, this first pliability layer is semitransparent layer or all-transparent layer; This second pliability layer is semitransparent layer or all-transparent layer.
As optional technical scheme, this first pliability layer has protuberance, and this protuberance exposes to this printing opacity breach, and this protuberance is corresponding to this light scattering structure.
As optional technical scheme, this protuberance has word, symbol, letter or its combination.
As optional technical scheme, this second pliability layer has depressed part, and this depressed part is corresponding to this light scattering structure.
As optional technical scheme, this second pliability layer also has the reflector, and this reflector correspondence is formed at the below of this light scattering structure.
As optional technical scheme, this over cap also comprises power-supply unit, and this power-supply unit is electrically connected at this luminescence unit, and this power-supply unit is used for power supply to this luminescence unit.
As optional technical scheme, this over cap also comprises connector, and this connector is electrically connected at this luminescence unit, and this connector is used for connection of electronic devices or supply socket.
When over cap of the present utility model was arranged on button, the gap by between over cap covering button can prevent that foreign matter from entering keyboard via the gap, and then reached function dustproof and waterproof.Except the function of dustproof and waterproof, over cap of the present utility model also has lighting function, when over cap of the present utility model is arranged on button, can make keyboard become illuminated keyboard, increases the visual effect on using.Because the over cap of tool lighting function can disassemble on keyboard, make the keyboard body be conducive to the development of slimming.
In addition, the utility model also proposes a kind of keyboard, and this keyboard comprises base plate, a plurality of button and over cap, and button is arranged on this base plate; This over cap is arranged on these a plurality of buttons, and this over cap comprises light guide plate, the first pliability layer, the second pliability layer, light shield layer and luminescence unit.Light guide plate has light scattering structure, upper surface and with respect to the lower surface of this upper surface, this light scattering structure is formed in this light guide plate and is adjacent to this lower surface; The first pliability layer is formed on this upper surface; The second pliability layer is formed under this lower surface; Light shield layer is formed on this first pliability layer, and this light shield layer has the printing opacity breach, and this printing opacity breach correspondence is formed at the top of this light scattering structure; Luminescence unit is arranged at a side of this light guide plate, the light that this luminescence unit sends via the guiding of this light guide plate certainly this printing opacity breach project.
As optional technical scheme, this light scattering structure is micro-structural, optical ink structure or UV printing ink structure.
As optional technical scheme, this light scattering structure is formed with word, symbol, letter or its combination.
As optional technical scheme, this first pliability layer has word, symbol, letter or its combination corresponding to this printing opacity indentation, there.
As optional technical scheme, this light guide plate is polycarbonate plate or polymethyl methacrylate plate.
As optional technical scheme, the pliability layer of this first pliability layer for being made by silicon dioxide or titanium dioxide; The pliability layer of this second pliability layer for being made by silicon dioxide or titanium dioxide.
As optional technical scheme, this first pliability layer is semitransparent layer or all-transparent layer; This second pliability layer is semitransparent layer or all-transparent layer.
As optional technical scheme, this first pliability layer has protuberance, and this protuberance exposes to this printing opacity breach, and this protuberance is corresponding to this light scattering structure.
As optional technical scheme, this protuberance has word, symbol, letter or its combination.
As optional technical scheme, this second pliability layer has depressed part, and this depressed part is corresponding to this light scattering structure.
As optional technical scheme, this second pliability layer also has the reflector, and this reflector correspondence is formed at the below of this light scattering structure.
As optional technical scheme, this over cap also comprises power-supply unit, and this power-supply unit is electrically connected at this luminescence unit, and this power-supply unit is used for power supply to this luminescence unit.
As optional technical scheme, this over cap also comprises connector, and this connector is electrically connected at this luminescence unit, and this connector is used for connection of electronic devices or supply socket.
In sum, when the over cap of keyboard of the present utility model was arranged on button, the gap by between over cap covering button can prevent that foreign matter from entering keyboard via the gap, and then reached function dustproof and waterproof.Except the function of dustproof and waterproof, over cap of the present utility model also has lighting function, when the over cap of keyboard of the present utility model is arranged on button, can make keyboard become illuminated keyboard, increases the visual effect on using.Because the over cap of tool lighting function can disassemble on keyboard, make the keyboard body be conducive to the development of slimming.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Description of drawings
Fig. 1 is the schematic diagram of the keyboard of the utility model one embodiment;
Fig. 2 is the partial exploded view of the keyboard in Fig. 1;
Fig. 3 is that keyboard in Fig. 1 is along the profile of X-X line;
Fig. 4 is the part sectioned view of the keyboard of another embodiment of the utility model;
Fig. 5 is the part sectioned view of the over cap of the another embodiment of the utility model.
Embodiment
See also Fig. 1 to Fig. 3, Fig. 1 is the schematic diagram of the keyboard 1 of the utility model one embodiment, and Fig. 2 is the partial exploded view of the keyboard 1 in Fig. 1, and Fig. 3 is that keyboard 1 in Fig. 1 is along the profile of X-X line.As shown in Figure 1 to Figure 3, keyboard 1 comprises base plate 10, a plurality of button 12 and over cap 14.Button 12 is arranged on base plate 10, presses for the user, and then carries out the function of user institute wish input.Over cap 14 is arranged on button 12, so that dustproof, waterproof and lighting function to be provided.
As shown in Figure 3, keyboard 1 also comprises circuit board 16, is arranged between base plate 10 and button 12.Button 12 comprises keycap 120, elastic component 122 and liftable supporter 124, and wherein elastic component 122 and liftable supporter 124 all are arranged between base plate 10 and keycap 120.When button 12 was pressed, keycap 120 can follow liftable supporter 124 to move towards the perpendicular direction of base plate 10.Elastic force required when elastic component 122 namely moves up and down as the relative base plate 10 of keycap 120 is originated.Elastic component 122 can be rubber washer (rubber dome), but not as limit.Have the switch corresponding with button 12 on circuit board 16, for example thin film switch (membrane switch) or other triggering property switch.When keycap 120 is pressed, elastic component 122 switch on can circuits for triggering plates 16, and then carry out the function of user institute wish input.
As shown in Figure 3, over cap 14 comprises light guide plate 140, the first pliability layer 142, the second pliability layer 144, light shield layer 146, luminescence unit 148 and power-supply unit 150.Light guide plate 140 has light scattering structure 1400, upper surface 1402 and with respect to upper surface 1402 lower surfaces 1404, wherein light scattering structure 1400 is formed in light guide plate 140 and is adjacent to lower surface 1404.The first pliability layer 142 is formed on upper surface 1402, and the refractive index of the first pliability layer 142 is less than the refractive index of light guide plate 140 and greater than the refractive index of air.The second pliability layer 144 is formed at lower surface 1404 times, and the refractive index of the second pliability layer 144 is less than the refractive index of light guide plate 140 and greater than the refractive index of air.Light shield layer 146 is formed on the first pliability layer 142, and light shield layer 146 has printing opacity breach 1460, and printing opacity breach 1460 correspondences are formed at above button 12 essence.Luminescence unit 148 is arranged at a side of light guide plate 140, and the light that sends of luminescence unit 148 projects from printing opacity breach 1460 via light guide plate 140 guidings and light scattering structure 1400 scatterings, sees for the user and looks.Power-supply unit 150 is electrically connected at luminescence unit 148, in order to power to luminescence unit 148.In practical application, power-supply unit 150 can be battery.It should be noted that, the light scattering structure 1400 of over cap 14 determines with the quantity of the quantity of printing opacity breach 1460 according to button 12.
In the present embodiment, the refractive index of light guide plate 140 is between 1.4 and 2.Because the refractive index of air is 1, therefore can select refractive index is that 1.5 material is made light guide plate 140, and selecting refractive index is that 1.2 material forms respectively the first pliability layer 142 and the second pliability layer 144 in the upper surface 1402 of light guide plate 140 with lower surface 1404, but not as limit, the user can select the material of light guide plate 140, the first pliability layer 142 and the second pliability layer 144 as required voluntarily.It should be noted that, the material of the first pliability layer 142 and the second pliability layer 144 can be identical or different, depending on practical application.For example, light guide plate 140 can be made by Merlon (PC) or polymethyl methacrylate (PMMA), and the first pliability layer 142 and the second pliability layer 144 can be respectively by silicon dioxide (SiO
2) or titanium dioxide (TiO
2) make, but not as limit.In addition, the first pliability layer 142 can be semitransparent layer or all-transparent layer, and the second pliability layer 144 can be semitransparent layer or all-transparent layer, depending on practical application.
In the present embodiment, light scattering structure 1400 can be micro-structural, optical ink or the formed word of UV printing ink, symbol, letter or its combination, the function of the button 12 of wanting to press for user's identification.In other words, when the light that sends when luminescence unit 148 is beaten on light scattering structure 1400 via light guide plate 140 guidings, light scattering structure 1400 can make light produce scattering and project from printing opacity breach 1460, at this moment, the user can see the formed word of light scattering structure 1400, symbol, letter or its combination in printing opacity breach 1460.Light shield layer 146 can stop the stray light that scatters to beyond printing opacity breach 1460, so that the clearly formed word of identification light scattering structure 1400, symbol, letter or its combination of user.In the present embodiment, light shield layer 146 can be formed by black ink or other light screening materials.In addition, the first pliability layer 142 also can have in corresponding printing opacity breach 1460 places word, symbol, letter or its combination that is formed by ink printing, laser engraving or other modes, make when luminescence unit 148 does not emit beam, but the function of the button 12 that also identification of user is wanted to press.
In the present embodiment, corresponding to button 12 and button 12 ', the first pliability layer 142 can have respectively protuberance 1420 and protuberance 1420 ', and protuberance 1420 and protuberance 1420 ' expose to respectively printing opacity breach 1460 and printing opacity breach 1460 ', as shown in Figure 3; Protuberance (1420,1420 ') like this, printing opacity breach (1460,1460 ') is corresponding with this plural number button (12,12 ') respectively.When over cap 14 was arranged on button 12, protuberance 1420 can provide the feel of pressing of the keycap 120 of user as pressing keys 12; And protuberance 1420 and protuberance 1420' have between the two depression interval 1455 can allow the user be easy to distinguish zones of different corresponding to button 12 and button 12 '.Wherein protuberance 1420 can have word, symbol, letter or its combination that is formed by ink printing, laser engraving or other modes, make when luminescence unit 148 does not emit beam, but the function of the button 12 that also identification of user is wanted to press.
In addition, can have respectively depressed part 1440 and depressed part 1440' corresponding to button 12 and button the 12 ', the second pliability layer 144, that is depressed part (1440,1440') also with this plural number button (12,12') corresponding.When over cap 14 is arranged on button 12; depressed part 1440 namely can be covered on keycap 12; so that over cap 14 firmly is arranged on keyboard 1, is difficult for when user's pressing keys 12 and comes off or limit this over cap 14 with respect to moving left and right that this keyboard 1 carries out.
By this, when over cap 14 is arranged on button 12, hide the gap of 12 of buttons by over cap 14, can prevent that foreign matter from entering keyboard 1 inside via the gap, and then reach function dustproof and waterproof.Except the function of dustproof and waterproof, over cap 14 also has lighting function, when over cap 14 is arranged on button 12, can make keyboard 1 become illuminated keyboard, increases the visual effect on using.Because the over cap 14 of tool lighting function can disassemble on keyboard 1, make keyboard 1 body be conducive to the development of slimming.Pliability over cap 14 needs to satisfy: when (1) presses over cap 14 corresponding to the protuberance 1420 of one key 12 as the user, the over cap 14 of protuberance 1420 near zones can produce distortion and can the appreciable impact user press feel and the unexpectedly conducting of other buttons 12' that can not cause the user not press; And (2) remove when finger from protuberance 1420 as the user, rely on the restoring force of button 12 elastic components 122, button 12 can successfully be returned to the extreme higher position with the rapid jack-up of protuberance 1420, and can not increase significantly extra time of delay.
See also Fig. 4, Fig. 4 is the part sectioned view of the keyboard 1' of another embodiment of the utility model.The main difference part of keyboard 1' and above-mentioned keyboard 1 is, the second pliability layer 144 of keyboard 1' also has reflector 1442, and wherein reflector 1442 correspondences are formed at light scattering structure 1400 essence belows.In the present embodiment, reflector 1442 can be formed by white ink, silver paint or other reflectorized materials.But 1442 reflecting parts, reflector scatter to the light on it, to increase the light intensity that projects from printing opacity breach 1460.It should be noted that, in Fig. 4, with the element of same numeral shown in Fig. 3, its action principle is roughly the same, does not repeat them here.
See also Fig. 5, Fig. 5 is the part sectioned view according to the over cap 14' of the another embodiment of the utility model.The main difference part of over cap 14' and above-mentioned over cap 14 is; over cap 14' also comprises connector 152; connector 152 is electrically connected at luminescence unit 148 and power-supply unit 150, in order to connection of electronic devices (for example, computer) or supply socket.In practical application, connector 152 can be universal serial bus (Universal Serial Bus, USB) connector or other connectors.In the present embodiment, the user can utilize connecting line to connect connector 152 and electronic installation (for example, computer) or supply socket, charges to luminescence unit 148 or to power-supply unit 150 with power supply.It should be noted that, in Fig. 5, with the element of same numeral shown in Fig. 3, its action principle is roughly the same, does not repeat them here.
In sum, when over cap of the present utility model was arranged on button, the gap by between over cap covering button can prevent that foreign matter and steam from entering keyboard via the gap, and then reached function dustproof and waterproof.Except the function of dustproof and waterproof, over cap of the present utility model also has lighting function, when over cap of the present utility model is arranged on button, can make keyboard become illuminated keyboard, increases the visual effect on using.Because the over cap of tool lighting function can disassemble on keyboard, make the keyboard body be conducive to the development of slimming.
Certainly; the utility model also can have other various embodiments; in the situation that do not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (14)
1. over cap is characterized in that this over cap comprises:
Light guide plate has light scattering structure, upper surface and with respect to the lower surface of this upper surface, this light scattering structure is formed in this light guide plate and is adjacent to this lower surface;
The first pliability layer is formed on this upper surface;
The second pliability layer is formed under this lower surface;
Light shield layer is formed on this first pliability layer, and this light shield layer has the printing opacity breach, and this printing opacity breach correspondence is formed at the top of this light scattering structure; And
Luminescence unit is arranged at a side of this light guide plate, the light that this luminescence unit sends via this light guide plate guiding certainly this printing opacity breach project.
2. over cap according to claim 1, it is characterized in that: this light scattering structure is micro-structural, optical ink structure or UV printing ink structure.
3. over cap according to claim 1, it is characterized in that: this light scattering structure is formed with word, symbol, letter or its combination.
4. over cap according to claim 1, it is characterized in that: this first pliability layer has word, symbol, letter or its combination corresponding to this printing opacity indentation, there.
5. over cap according to claim 1, it is characterized in that: this light guide plate is polycarbonate plate or polymethyl methacrylate plate.
6. over cap according to claim 1, is characterized in that: the pliability layer of this first pliability layer for being made by silicon dioxide or titanium dioxide; The pliability layer of this second pliability layer for being made by silicon dioxide or titanium dioxide.
7. over cap according to claim 1, it is characterized in that: this first pliability layer is semitransparent layer or all-transparent layer; This second pliability layer is semitransparent layer or all-transparent layer.
8. over cap according to claim 1, it is characterized in that: this first pliability layer has protuberance, and this protuberance exposes to this printing opacity breach, and this protuberance is corresponding to this light scattering structure.
9. over cap according to claim 8, it is characterized in that: this protuberance has word, symbol, letter or its combination.
10. over cap according to claim 1, it is characterized in that: this second pliability layer has depressed part, and this depressed part is corresponding to this light scattering structure.
11. over cap according to claim 1 is characterized in that: this second pliability layer also has the reflector, and this reflector correspondence is formed at the below of this light scattering structure.
12. over cap according to claim 1 is characterized in that: this over cap also comprises power-supply unit, and this power-supply unit is electrically connected at this luminescence unit, and this power-supply unit is used for power supply to this luminescence unit.
13. over cap according to claim 1 is characterized in that: this over cap also comprises connector, and this connector is electrically connected at this luminescence unit, and this connector is used for connection of electronic devices or supply socket.
14. a keyboard is characterized in that this keyboard comprises:
Base plate;
A plurality of buttons are arranged on this base plate; And
Over cap described in claim 1 to 13 any one, this over cap are arranged on these a plurality of buttons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642478 CN202940150U (en) | 2012-11-29 | 2012-11-29 | Protective cover and keyboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642478 CN202940150U (en) | 2012-11-29 | 2012-11-29 | Protective cover and keyboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940150U true CN202940150U (en) | 2013-05-15 |
Family
ID=48324375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220642478 Expired - Lifetime CN202940150U (en) | 2012-11-29 | 2012-11-29 | Protective cover and keyboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891940A (en) * | 2016-06-21 | 2016-08-24 | 京东方科技集团股份有限公司 | Light guide plate, backlight source module and display device |
-
2012
- 2012-11-29 CN CN 201220642478 patent/CN202940150U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891940A (en) * | 2016-06-21 | 2016-08-24 | 京东方科技集团股份有限公司 | Light guide plate, backlight source module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |