CN101398510A - Input device and light conducting plate thereof - Google Patents
Input device and light conducting plate thereof Download PDFInfo
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- CN101398510A CN101398510A CNA2008101750705A CN200810175070A CN101398510A CN 101398510 A CN101398510 A CN 101398510A CN A2008101750705 A CNA2008101750705 A CN A2008101750705A CN 200810175070 A CN200810175070 A CN 200810175070A CN 101398510 A CN101398510 A CN 101398510A
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- light guide
- proof material
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Abstract
The invention provides an input device and a light guide plate thereof; the light guide plate is provided with light transmission and application to the input device; one surface of the light guide plate comprises a first area and a second area; the first area is covered by lighttight material; if the light beam is emitted in the light guide plate, the light beam can emit out through the second area; the input device and the light guide plate thereof can greatly simplify the complex structure and the preparation process of the traditional luminescence keyboard and can effectively improve the light guiding efficiency of the light guide plate.
Description
Technical field
The present invention is relevant for a kind of input media and light guide plate thereof, particularly about a kind of keyboard and light guide plate thereof with lighting function.
Background technology
Along with science and technology evolution constantly, information equipment is also and then universal day by day, with regard to the computing machine of normal contact, various label and pattern are not only being arranged on the market, its feeler more extends to places such as family, factory, office and school, its use aspect even be popularized for each stratum has almost become the daily essential product of people.Known computing machine comprises desktop PC and notebook computer, needs the collocation keyboard mostly, carries out operations such as character input for the user.
Present at a kind of illuminated keyboard quite in vogue on the market, because it has the lighting function that conventional keyboard lacks, therefore, very attention that can catch a buying public and welcome.Please refer to Fig. 1, Fig. 1 illustrates the synoptic diagram of the structure of general illuminated keyboard.As shown in Figure 1, illuminated keyboard 1 comprises a plurality of buttons 10, sheet metal 12 and light emitting module 14.The holes 122 that the light that light emitting module 14 is sent sees through on the sheet metal 12 is sent in the button 10, and is appeared outside the button 10 by the keycap 102 of the light-permeable of button 10, uses to reach the luminous effect of button 10.
Please refer to Fig. 2, Fig. 2 illustrates the synoptic diagram of the detailed construction of light emitting module shown in Figure 1 14.As shown in Figure 2, light emitting module 14 comprises flexible circuit board 141, luminescence component 142, light guide plate 143, reflection horizon 144 and shielding layer 145.Wherein reflection horizon 144 and shielding layer 145 are arranged at the below and the top of light guide plate 143 respectively.
Being arranged at luminescence component 142 on the flexible circuit board 141 passes reflection horizon 144 and stretches in the light guide plate 143.When luminescence component 142 emits beam, because reflection horizon 144 is all light tight with shielding layer 145, so light only can be appeared by first transmission region 1452 on the shielding layer 145 and second transmission region 1454, and is incident upon in the button 10 via the holes on the sheet metal 12 122.
Yet, because the top and the below of light guide plate 143 must be respectively arranged with shielding layer 145 and reflection horizon 144, not only increase the complexity of illuminated keyboard 1 manufacture process, make production efficiency reduce, also increased the production cost of illuminated keyboard 1 simultaneously.In addition, the light that enters in the light guide plate 143 also may be penetrated by the side of light guide plate 143, will make the light intensity that offers illuminated keyboard 1 reduce.
Summary of the invention
The present invention proposes a kind of input media that has the light guide plate of particular design and comprise this light guide plate.In fact, this input media can be the illuminated keyboard that is used for operating desktop PC, mobile computer or other electronic equipment.
According to the design of light guide plate of the present invention, the labyrinth that can significantly simplify traditional illuminated keyboard and had and manufacture process thereof and can also promote the leaded light efficient of light guide plate effectively reduce with the light intensity of avoiding offering illuminated keyboard.
Light guide plate of the present invention has light-permeable, and the first surface of this light guide plate comprises first area and second area.This first area does not overlap with this second area.On this first area, be coated with light-proof material.If light is injected in the light guide plate, this light can see through second area and penetrate.
In practical application, this light-proof material can see through the mode that sprays or paste and be covered in the first area.This light-proof material can be Polyvinylchloride (PVC).
As optional scheme, this light guide plate can comprise the second surface with respect to first surface, is coated with light-proof material on the specific region of second surface, and light can't penetrate from the specific region.
As optional scheme, this light guide plate can comprise at least one side surface adjacent to first surface.When being coated with light-proof material on the specific region of this at least one side surface, this light can't penetrate from the specific region.
The present invention also provides a kind of input media.This input media can be the illuminated keyboard that is used for operating desktop PC, mobile computer or other electronic equipment.This input media comprises luminescence unit, aforementioned light guide plate of the present invention and key-press module.Luminescence unit is in order to emit beam.Light guide plate has light-permeable and is arranged on the luminescence unit; Key-press module then is arranged on the light guide plate.Key-press module comprises a plurality of keycaps, wherein has the light-permeable zone respectively on each keycap.Therefore, when light was incident upon keycap, light promptly can penetrate from the light-permeable zone.Wherein, the first surface of this light guide plate comprises first area and second area.This first area does not overlap with this second area.On this first area, be coated with light-proof material.If light is injected in the light guide plate, this light can see through second area and penetrate.
In practical application, this light-proof material can see through the mode that sprays or paste and be covered in the first area.This light-proof material can be Polyvinylchloride (PVC).
As optional scheme, this light guide plate can comprise the second surface with respect to first surface.When being coated with light-proof material on the specific region of second surface, this light can't penetrate from the specific region.
As optional scheme, this light guide plate can comprise at least one side surface adjacent to first surface.When being coated with light-proof material on the specific region of this at least one side surface, this light can't penetrate from the specific region.
Compared to prior art,, make light guide plate itself promptly can provide and be arranged at light guide plate top and the shielding layer of below and the function in reflection horizon originally owing to particular design according to light guide plate of the present invention.Therefore, the illuminated keyboard that comprises this light guide plate not only can save the program of making shielding layer and reflection horizon, with complexity and the lifting production efficiency of simplifying the illuminated keyboard processing procedure, can also promote the leaded light efficient of light guide plate simultaneously, to strengthen the luminous intensity of illuminated keyboard.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 illustrates the synoptic diagram of the structure of illuminated keyboard in the prior art;
Fig. 2 illustrates the synoptic diagram of the detailed construction of light emitting module shown in Figure 1;
Fig. 3 illustrates the synoptic diagram according to the light guide plate of first embodiment of the present invention;
Fig. 4 illustrates the synoptic diagram of the lower surface covering light-proof material of light guide plate shown in Figure 3;
Fig. 5 illustrates the synoptic diagram of the side surface covering light-proof material of light guide plate shown in Figure 3;
The upper surface that Fig. 6 illustrates light guide plate comprises the synoptic diagram in two difform light-permeable zones;
Fig. 7 illustrates the synoptic diagram according to the input media of second embodiment of the present invention;
Fig. 8 A and Fig. 8 B illustrate the cross section view and the external view of the detailed construction of light emitting module shown in Figure 7 respectively;
Fig. 9 A illustrates the cross section view of the detailed construction of light emitting module;
Fig. 9 B illustrates the synoptic diagram of the lower surface covering light-proof material of light guide plate;
Figure 10 illustrates first side of light guide plate and the synoptic diagram that second side covers light-proof material.
Embodiment
The invention provides a kind of input media that has the light guide plate of particular design and comprise this light guide plate.In fact, this input media can be the illuminated keyboard that is used for operating desktop PC, mobile computer or other electronic equipment.
By the particular design according to light guide plate of the present invention, the labyrinth that can significantly simplify traditional illuminated keyboard and had and processing procedure thereof and also can promote the leaded light efficient of light guide plate effectively weaken with the light intensity of avoiding offering illuminated keyboard.First embodiment according to the present invention is a kind of light guide plate.In fact, this light guide plate can be integrated on the structure of illuminated keyboard.In this embodiment, this light guide plate is made by transparent material.Please refer to Fig. 3, Fig. 3 illustrates the synoptic diagram of this light guide plate.
As shown in Figure 3, light guide plate 3 comprises upper surface 32, lower surface 34 and side surface 36.Then, will inquire into regard to the upper surface 32 of light guide plate 3.Upper surface 32 comprises two zones altogether.These two zones be respectively light tight regional 322 with transmission region 324.Light tight regional 322 with transmission region 324 between do not overlap.
In this embodiment, on light tight regional 322, will be covered with one deck light-proof material; As on transmission region 324, then be not covered with any light-proof material.
In practical application, this light-proof material can be that Polyvinylchloride (PVC) or other have the material of opaqueness.In addition, this light-proof material can be covered in by different modes on light tight regional 322.
For example, this light-proof material can be formed on light tight regional 322 through the mode of spraying; This light-proof material also can see through the mode of pasting or being coated with and be formed on light tight regional 322.
Next, will describe with regard to the situation that light is injected in the light guide plate 3.When light is injected light guide plate 3 by the lower surface 34 of light guide plate 3, since light guide plate 3 upper surfaces 32 light tight regional 322 on be covered with one deck light-proof material, so when light was incident upon upper surface 32, this layer light-proof material will stop that light penetrates from light tight regional 322.
In addition, owing to be not covered with any light-proof material on the transmission region 324, light can be from transmission region 324 ejaculations, so that the button luminous light source of illuminated keyboard to be provided.
Owing in the structure of traditional illuminated keyboard, all can be provided with shielding layer usually in the top of light guide plate, as shown in Figure 2.See through the design of above-mentioned light guide plate 3, owing to had the function that shielding layer provided originally, therefore, the shielding layer in the illuminated keyboard structure can be omitted, with the space of saving the illuminated keyboard structure and the complexity of simplifying its processing procedure.
Next, will inquire into regard to the lower surface 34 of light guide plate 3.As shown in Figure 4, be covered with one deck light-proof material on the lower surface 34 of light guide plate 3.In practical application, this layer light-proof material can be that Polyvinylchloride (PVC) or other have the material of opaqueness.In addition, this light-proof material can be covered on the lower surface 34 through different modes.For example, this light-proof material can be formed on the lower surface 34 through the mode that sprays, pastes or be coated with.In addition, the zone that covers light-proof material can be all or part of zone of lower surface 34, does not exceed with this example.
In this embodiment, the reason that covers light-proof material on the lower surface 34 of light guide plate 3 is can be penetrated by lower surface 34 for fear of the light that enters in the light guide plate 3.After light is injected light guide plate 3 by the lower surface 34 of light guide plate 3, will in light guide plate 3, transmit.When the light in the light guide plate 3 was desired to be penetrated by lower surface 34, the light-proof material reflection that will be covered by lower surface 34 made light to be penetrated by lower surface 34, offered the light intensity of illuminated keyboard thereby weakened avoiding.
Owing in the structure of traditional illuminated keyboard, all can be provided with the reflection horizon usually in the below of light guide plate, as shown in Figure 2.See through the design of above-mentioned light guide plate 3,, make the leaded light efficient of light guide plate to promote, to strengthen the luminous intensity of illuminated keyboard owing to had the function that the reflection horizon provided originally.Therefore, the reflection horizon in the illuminated keyboard structure can be omitted, with the space of saving the illuminated keyboard structure and the complexity of simplifying its processing procedure.
Next, will inquire into regard to the side surface 36 of light guide plate 3.As shown in Figure 5, be covered with one deck light-proof material on the side surface 36 of light guide plate 3.In practical application, this layer light-proof material can be that Polyvinylchloride (PVC) or other have the material of opaqueness.
In addition, this light-proof material can be covered on the side surface 36 through different modes.For example, this light-proof material can be formed on the side surface 36 through the mode that sprays, pastes or be coated with.
In this embodiment, the reason that the side surface 36 of light guide plate 3 covers light-proof material is can be penetrated by side surface 36 for fear of the light that enters in the light guide plate 3.After light is injected light guide plate 3 by the lower surface 34 of light guide plate 3, will in light guide plate 3, transmit.
When the light that transmits in the light guide plate 3 was desired to be penetrated by side surface 36, the light-proof material reflection that will be covered by side surface 36 made light to be penetrated by side surface 36, offered the light intensity of illuminated keyboard thereby weakened avoiding.
It should be noted that except the side surface 36 of light guide plate 3, also can cover light-proof material on the several side surfaces of other of light guide plate 3, penetrate by side surface, cause the light intensity that offers illuminated keyboard to weaken to avoid light.In addition, the zone that covers light-proof material can be all or part of zone of side surface, does not exceed with this example.
In addition, please refer to Fig. 6, the upper surface that Fig. 6 illustrates light guide plate comprises two synoptic diagram with difform light-permeable zone.As shown in Figure 6, light guide plate 6 comprises upper surface 62, lower surface 64 and side surface 66.The upper surface 62 of light guide plate 6 comprises light tight regional 622, first transmission region 623 and second transmission region 624.Wherein first transmission region 623 be shaped as squarely, the shape of second transmission region 624 then is circular, both are also inequality.
In fact, no matter be transmission region or light tight zone, all visual actual needs of its shape or size and adjusting does not exceed with embodiments of the present invention.
Second embodiment according to the present invention is a kind of input media.In fact, this input media can be the illuminated keyboard that is used for operating desktop PC, mobile computer or other electronic equipment.Please refer to Fig. 7, Fig. 7 illustrates the synoptic diagram of this input media.
As shown in Figure 7, input media 7 comprises a plurality of buttons 70, sheet metal 72 and light emitting module 74.Wherein button 70 comprises keycap 702, scissors pin 704, rubber calotte 706, flexible circuit board 708 and substrate 710.Keycap 702 has light-permeable.The holes 722 that the light that light emitting module 74 is sent sees through on the sheet metal 72 is sent in the button 70, and is appeared outside the button 70 by the keycap 702 of button 70, uses to reach the luminous effect of button 70.
In this embodiment, when button 70 during by pressed by external force, keycap 702 will move down, and causes rubber calotte 706 distortion, cause the contact jaw that is arranged in the rubber calotte 706 will contact the switch that is arranged on the flexible circuit board 708, thereby make that this switch can conducting.
In actual applications, whether the contact jaw of the switch on the flexible circuit board 708 and rubber calotte 706 contacts input or other function that can reach character.Then be when the external force of pressing keys 70 disappears originally the original position before scissors pin 704 can make button 70 get back to rapidly not to be pressed as for the function of scissors pin 704.About the operational scenario of button 70 and general button are as good as,, do not repeat them here so underdraw as above.
Next, will be described in detail with regard to the light emitting module 74 of input media 7.Please refer to Fig. 8 A and Fig. 8 B, Fig. 8 A and Fig. 8 B illustrate the cross section view and the external view of the detailed construction of light emitting module 74 respectively.
Shown in Fig. 8 A, light emitting module 74 comprises flexible circuit board 741, luminescence component 742, light guide plate 743 and reflection horizon 744.Wherein reflection horizon 744 is arranged at the below of light guide plate 743.It should be noted that compared to light emitting module shown in Figure 2 14 light emitting module 74 has omitted the shielding layer 145 of light emitting module 14.
In this embodiment, the upper surface A of light guide plate 743 comprise light tight regional 7432 with transmission region 7434.And light tight regional 7432 with transmission region 7434 between do not overlap.On light tight regional 7432, be coated with one deck light-proof material; As on transmission region 7434, then be not covered with any light-proof material.
In practical application, this light-proof material can be that Polyvinylchloride (PVC) or other have the material of opaqueness.In addition, this light-proof material can be covered on light tight regional 7432 through different modes.For example, this light-proof material can be formed on light tight regional 7432 through the mode that sprays, pastes or be coated with.
Next, will describe with regard to the situation that light is injected in the light guide plate 743.When light is injected light guide plate 743 by the lower surface of light guide plate 743, since light guide plate 743 upper surface A light tight regional 7432 on be covered with one deck light-proof material, so when light was incident upon upper surface A, this layer light-proof material will stop that light penetrates from light tight regional 7432.
In addition, owing to be not covered with any light-proof material on the transmission region 7434, light can be from transmission region 7434 ejaculations, so that the button luminous light source of illuminated keyboard to be provided.
See through the design of above-mentioned light guide plate 743, because light guide plate 743 has had the function that shielding layer provided originally, therefore, the shielding layer in the structure of illuminated keyboard can be omitted, with the space of saving the illuminated keyboard structure and the complexity of simplifying its processing procedure.
In fact, except the upper surface of light guide plate, also can carry out similar handling procedure with regard to the lower surface of light guide plate.Please refer to Fig. 9 A, Fig. 9 A illustrates the cross section view of the detailed construction of light emitting module 94.
Shown in Fig. 9 A, light emitting module 94 comprises flexible circuit board 941, luminescence component 942 and light guide plate 943.The upper surface B and the lower surface C of light guide plate 943 all are coated with light-proof material.It should be noted that compared to light emitting module shown in Figure 2 14 light emitting module 94 has omitted the shielding layer 145 and the reflection horizon 144 of light emitting module 14.
Shown in Fig. 9 B, the lower surface C of light guide plate 943 is coated with one deck light-proof material.In fact, this light-proof material can be that Polyvinylchloride (PVC) or other have the material of opaqueness.In addition, this light-proof material can be covered on the lower surface C through different modes.For example, this light-proof material can be formed on the lower surface C through the mode that sprays, pastes or be coated with.
In this embodiment, the reason that the lower surface C of light guide plate 943 is coated with light-proof material is can be penetrated by lower surface C for fear of the light that enters in the light guide plate 943.After light is injected light guide plate 943 by the lower surface C of light guide plate 943, will in light guide plate 943, transmit.When the light in the light guide plate 943 was desired to be penetrated by lower surface C, the light-proof material reflection that will be covered by lower surface C made light to be penetrated by lower surface C, offered the light intensity of illuminated keyboard thereby weakened avoiding.
Because above-mentioned light guide plate 943 has had the function that the reflection horizon provided originally, makes the leaded light efficient of light guide plate 943 to promote, to strengthen the luminous intensity of illuminated keyboard.Therefore, the reflection horizon in the illuminated keyboard structure can be omitted, with the space of saving the illuminated keyboard structure and the complexity of simplifying its processing procedure.
In like manner, as shown in figure 10, the first side surface D and the second side surface E of light guide plate 943 also can be coated with light-proof material.The reason that covers light-proof material in the first side surface D and the second side surface E of light guide plate 943 is can be penetrated by the first side surface D or the second side surface E for fear of the light that enters in the light guide plate 943.
In fact, except the first side D and the second side E, also can cover light-proof material on other side surface of light guide plate 943, penetrate by the side surface of light guide plate 943, cause the light intensity that offers illuminated keyboard to weaken to avoid light.
Compared to prior art, because particular design according to light guide plate of the present invention, make the illuminated keyboard that comprises this light guide plate to save and make the program that script is arranged at the shielding layer of light guide plate top,, promote production efficiency to simplify the complexity of illuminated keyboard processing procedure.In addition, according to the particular design of light guide plate of the present invention, also can help the leaded light efficient of the reflective layer reflects light of light guide plate below, and can strengthen the luminous intensity of illuminated keyboard with the lifting light guide plate.
Claims (10)
1. light guide plate, this light guide plate has light-permeable and is applied in the input media, it is characterized in that this light guide plate comprises:
First surface, this first surface comprises:
The first area is coated with a light-proof material on this first area; And
Second area, if a light is injected in this light guide plate, this light can see through this second area and penetrate.
2. light guide plate according to claim 1, this light-proof material that it is characterized in that being covered on this first area stops that this light penetrates from this first area.
3. light guide plate according to claim 1 is characterized in that this first area does not overlap with this second area.
4. light guide plate according to claim 1 is characterized in that this light-proof material is covered in this first area by the mode that sprays, is coated with or pastes.
5. light guide plate according to claim 1 is characterized in that this little light transmissive material is Polyvinylchloride (PVC).
6. light guide plate according to claim 1 is characterized in that further comprising:
Second surface, this second surface are with respect to this first surface, and when being coated with this light-proof material on the specific region of this second surface, this light can't penetrate from this specific region.
7. light guide plate according to claim 1 is characterized in that further comprising:
At least one side surface, this side surface are adjacent to this first surface, and when being coated with this light-proof material on the specific region of this side surface, this light can't penetrate from this specific region.
8. input media is characterized in that comprising:
Luminescence unit is in order to emit beam;
According to any described light guide plate in the claim 1 to 7, be arranged on this luminescence unit; And
Key-press module, this key-press module is arranged on this light guide plate.
9. input media according to claim 8 is characterized in that this luminescence unit is a light-emitting diode component.
10. input media according to claim 9 is characterized in that this key-press module comprises: a plurality of keycaps have light-permeable zone respectively and when this light is incident upon these keycaps, this light can be from this light-permeable zone ejaculation on this keycap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101750705A CN101398510A (en) | 2008-10-24 | 2008-10-24 | Input device and light conducting plate thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101750705A CN101398510A (en) | 2008-10-24 | 2008-10-24 | Input device and light conducting plate thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101398510A true CN101398510A (en) | 2009-04-01 |
Family
ID=40517191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101750705A Pending CN101398510A (en) | 2008-10-24 | 2008-10-24 | Input device and light conducting plate thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101398510A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907266A (en) * | 2009-06-05 | 2010-12-08 | 旭丽电子(广州)有限公司 | Flexible light beam guiding module with waterproof function |
| CN101882520B (en) * | 2009-05-08 | 2013-03-27 | 上海向隆电子科技有限公司 | Button device for improving luminous efficiency |
| CN107076368A (en) * | 2014-09-02 | 2017-08-18 | 索尼公司 | Bulb type light supply apparatus and translucent cover |
-
2008
- 2008-10-24 CN CNA2008101750705A patent/CN101398510A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882520B (en) * | 2009-05-08 | 2013-03-27 | 上海向隆电子科技有限公司 | Button device for improving luminous efficiency |
| CN101907266A (en) * | 2009-06-05 | 2010-12-08 | 旭丽电子(广州)有限公司 | Flexible light beam guiding module with waterproof function |
| CN107076368A (en) * | 2014-09-02 | 2017-08-18 | 索尼公司 | Bulb type light supply apparatus and translucent cover |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20090401 |