CN103218051B - A kind of keyboard preventing light leak - Google Patents
A kind of keyboard preventing light leak Download PDFInfo
- Publication number
- CN103218051B CN103218051B CN201310102549.7A CN201310102549A CN103218051B CN 103218051 B CN103218051 B CN 103218051B CN 201310102549 A CN201310102549 A CN 201310102549A CN 103218051 B CN103218051 B CN 103218051B
- Authority
- CN
- China
- Prior art keywords
- luminescence component
- light
- keyboard
- keycap
- thin film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000010408 film Substances 0.000 claims abstract description 61
- 238000004020 luminiscence type Methods 0.000 claims abstract description 50
- 239000010409 thin film Substances 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000005452 bending Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000003443 Unconsciousness Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The invention provides a kind of keyboard preventing light leak, comprising: keycap; Luminescence component, for sending visible ray and illuminating this keycap; Circuit film layer, be positioned at the below of this luminescence component and be electrically connected with this luminescence component, wherein, this circuit film layer is provided with installation portion, this luminescence component is installed on this installation portion, this installation portion comprises topmost thin film and lower film, and this lower film is provided with and protrudes from topmost thin film and the protuberance paralleled with this topmost thin film.The present invention forms step structure by making the edge of the circuit film layer be connected with luminescence component, reduce light loss in the horizontal direction, thus prevent the leakage of light, and further increase brightness and the concentration degree of the light at keycap place, convenient for users to use.
Description
Technical field
The invention relates to a kind of keyboard, especially a kind of keyboard preventing light leak.
Background technology
Along with the development of science and technology, the frequency that electronic product occurs in people's life is more and more higher, even becomes a part indispensable in people's life.In general, the downside of the button of keyboard can be equiped with light source usually to illuminate button so that identify this button whether operated or be convenient to user at dark place still the mark can found on button operate with correct carrying out.But the existing keyboard with lighting function, as shown in Figure 1, comprise keycap 1, luminescence component 2 and circuit film layer 3, luminescence component 2 and circuit film layer 3 are electrically connected mutually, and the side of circuit film layer is vertical shape.When luminescence component 2 switches on power luminescence, its luminous energy sent bottom being incident to keycap 1 from bottom to top, thus illuminate keycap 1, but during fabrication, there is such problem in frequent discovery, the light that luminescence component 2 sends is derived from the side of circuit film layer 3, reduces the brightness of keycap place light, even spill from the gap between keycap and keycap, be with to user and serve inconvenience.
Therefore, the keyboard designing a kind of novel prevented light leak is necessary, to overcome above-mentioned defect.
Summary of the invention
The object of the present invention is to provide a kind of keyboard preventing light leak, it can reduce the leakage of light.
For reaching above-mentioned order, the invention provides a kind of keyboard preventing light leak, comprising: keycap; Luminescence component, for sending visible ray and illuminating this keycap; Circuit film layer, be positioned at the below of this luminescence component and be electrically connected with this luminescence component, wherein, this circuit film layer is provided with installation portion, this luminescence component is installed on this installation portion, this installation portion comprises topmost thin film and lower film, and this lower film is provided with and protrudes from topmost thin film and the protuberance paralleled with this topmost thin film.
Preferably, the upper surface of this protuberance is provided with light shield layer.
Preferably, this light shield layer bends the side extending to lower film again after the edge bending of this topmost thin film extends to this protuberance.
Preferably, this light shield layer is ink layer against sunshine.
Preferably, also comprise the crown top of burner of the top being arranged at this luminescence component, this crown top of burner, between this keycap and this luminescence component, is provided with receiving space in order to accommodate this luminescence component.
Preferably, the top correspondence of this crown top of burner be provided with light that opening or hyalomere send for this luminescence component from bottom to top by irradiate this keycap.
Preferably, this crown top of burner contacts with the upper surface of this topmost thin film, and the region that this circuit film layer upper surface is positioned at the surrounding of this crown top of burner is provided with light shield layer.
Preferably, this circuit film layer is provided with the peristome adjacent with this installation portion further, and this peristome runs through this circuit film layer; This protuberance is arranged at the side near this peristome.
Preferably, the region this topmost thin film being positioned at the surrounding of this luminescence component is provided with light shield layer.
Compared with prior art, the present invention can prevent the keyboard of light leak, step structure is formed by making the edge of the circuit film layer be connected with luminescence component, reduce light loss in the horizontal direction, thus prevent the leakage of light, further increase brightness and the concentration degree of the light at keycap place, convenient for users to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art.
Fig. 2 is structural representation of the present invention.
Fig. 3 is the structural representation of another embodiment of the present invention.
Fig. 4 is the structural representation of third embodiment of the invention.
Fig. 5 is the vertical view of shown circuit film layer.
Fig. 6 is the cut-open view in the A-A direction shown in Fig. 5.
Embodiment
For making there is further understanding to object of the present invention, structure, feature and function thereof, embodiment is hereby coordinated to be described in detail as follows.
With reference to shown in Fig. 2, the structural representation of the keyboard of light leak is prevented for the present invention is a kind of, comprise: keycap 1, luminescence component 2, circuit film layer 3, wherein luminescence component 2 is between keycap 1 and circuit film layer 3, illuminate the bottom of keycap in order to luminescence, and luminescence component 2 to be installed on circuit film layer 3 and to be electrically connected mutually with it.
The top of keycap 1 is provided with light out part 10, and the bottom 11 of keycap 1 is provided with supporting component (not shown in FIG.), can move up and down in vertical direction to make this keycap 1.
Circuit film layer 3 is provided with installation portion 31, and this luminescence component 2 is installed on this installation portion 31, and this installation portion 31 comprises topmost thin film 32 and lower film 33, and this lower film 33 is provided with and protrudes from topmost thin film and the protuberance 330 paralleled with this topmost thin film.In addition, separation layer 34 is also provided with between topmost thin film 32 and lower film 33.
When keycap 1 is pressed, circuit film layer 3 switches on power, the luminescence component 2 be electrically connected with this circuit film layer 3 phase switches on power and emits beam, this light is upwards irradiated to the bottom 11 of keycap and incides the external world from light out part 10, thus is convenient to user and can observes this keycap 1.Although, light that this luminescence component 2 a sends part can derive (see Y-direction Fig. 2) from the side 321 of topmost thin film 32, a part derives from the side 331 of lower film (see Fig. 2 shown in X-direction), cause the leakage of light, but the setting of the protuberance 330 because of lower film 33, decrease light the side 321 of leakage topmost thin film 32 and the leakage of the side 331 of lower film 32.
One of know-why that the present invention utilizes is: light conductor thickness is thinner, and the conduction loss of light is larger.Because of the PET material that circuit film layer 3 is transparent, when after luminescence component luminescence, circuit film layer 3 has light guide effect and becomes a kind of light conductor (light can conduct along its side), because the absolute growth of side is too small, thus cause the guide-lighting intensity in side larger, if lower film 33 is extended, the section thickness of whole circuit film layer 3 is divided into thinner two sections (331 & 321 with reference to Fig. 2 are shown), use the guide-lighting weakened in side, and then the situation reducing side light leak occurs.Its reason is, the guide-lighting intensity of the side of circuit film 3 and the thickness of circuit film have the relation of negative correlation, namely guide-lighting intensity reduces along with the increase of the thickness of circuit film, increase along with the reduction of the thickness of circuit film, therefore, the setting of the protuberance 330 of lower film 33, on optical effect, be equivalent to add the thickness of the circuit film 3 can deriving light, the minimizing of the loss of the guide-lighting intensity in side 321 of the topmost thin film 32 of circuit film 3 must be caused, reduce and decrease the leakage of light.In sum, step structure is formed by making the edge of the circuit film layer 3 be connected with luminescence component 2, reduce light loss in the horizontal direction, thus decrease the leakage of light and unnecessary energy loss, ensure that light only can the bottom 11 being incident to keyboard 1 from bottom to top effectively, further increase brightness and the concentration degree of the light at keycap 1 place.
Certainly, in order to further reduce the leakage of light, light shield layer 4 can also be set at the upper surface of the protuberance 330 of lower film 33, as shown in Figure 2, this light shield layer 4 can be black-out ink layer etc., and the light preventing luminescence component 2 from sending is derived from the upper surface of the protuberance 330 of lower film 33.
In addition, also please with further reference to shown in Fig. 2, light shield layer 4 can also be set the position on topmost thin film 32 around luminescence component 2, to ensure that light that this luminescence component 2 sends to illuminate the bottom 11 of keycap 1 according to predetermined light path (vertically upward).
Preferably, this light shield layer 4 ' bends the side 331 extending to lower film 33 again after edge 321 bending of this topmost thin film 32 extends to this protuberance 330, plays shaded effect completely, with reference to shown in Fig. 3.
With reference to shown in Fig. 4, it is the structural representation of another embodiment of the present invention.In the present embodiment, the keyboard of light leakage of the present invention comprises keycap 1, luminescence component 2, circuit film layer 3, back up pad 6 and the crown top of burner 5, and this crown top of burner 5 is between this keycap 1 and this luminescence component 2.The bottom of this crown top of burner 5 is provided with receiving space 51 in order to accommodate this luminescence component 2; The top of this crown top of burner 5 is provided with opening or hyalomere 50, has the effect of printing opacity.Wherein this crown top of burner 5 is connected with this keycap 1, luminescence component 2 is contained in wherein by this crown top of burner 5, the light leakage in the horizontal direction that this luminescence component 2 sends can be reduced, to guarantee that the light that this luminescence component 2 sends can be upward through top and incide the bottom 11 of keycap 1, thus the external world can be incided from the light out part 10 of keycap 1, discover for user.Certainly, this crown top of burner 5 can also to be arranged on circuit film layer 3 and to be directly contained in wherein by luminescence component 2, also can reach effect same as the previously described embodiments.
Separately please refer to shown in Fig. 4, Fig. 5, Fig. 6, disclose the fourth embodiment of the present invention.In the present embodiment, circuit film layer is provided with peristome 30 and the installation portion 31 adjacent with this peristome 30, and this luminescence component 2 is installed on this installation portion.This peristome 30 runs through upper surface 34 and the lower surface 35 of this circuit film layer 3; This installation portion 31 comprises topmost thin film 32 and lower film 33, and this lower film 33 is in being provided with the protuberance 330 protruding from topmost thin film 32 towards the direction of this peristome 30.Wherein this peristome 30 is formed and allows bit space pass for the supporting construction (not shown in FIG.) of keyboard, and wherein supporting construction is for connecting keycap 1 and back up pad 6, the movement can carrying out in vertical direction relative to back up pad 6 in order to make this keycap 1.Because of the existence of this peristome 30, make this circuit film layer that the leakage of light very easily occur near the side of peristome 30, therefore should towards the setting of the protuberance 330 of peristome 30, decrease the leakage of light, reduce light loss in the horizontal direction, thus decrease the leakage of light, ensure that in the light only bottom 11 being incident to keyboard 1 from bottom to top, further increase the brightness of the light at keycap 1 place.Certainly, in the present embodiment, light shield layer can also be set at the upper surface of protuberance 330 or side, to have better shaded effect.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that the embodiment disclosed limit the scope of the invention.On the contrary, change done without departing from the spirit and scope of the present invention and retouching, all belong to scope of patent protection of the present invention.
Claims (9)
1. can prevent a keyboard for light leak, comprise:
Keycap;
Luminescence component, for sending visible ray and illuminating this keycap;
Circuit film layer, is positioned at the below of this luminescence component and is electrically connected with this luminescence component, and wherein, this circuit film layer is provided with installation portion, and this luminescence component is installed on this installation portion, and this installation portion comprises topmost thin film and lower film;
It is characterized in that, this lower film is provided with and protrudes from topmost thin film and the protuberance paralleled with this topmost thin film.
2. keyboard as claimed in claim 1, it is characterized in that, the upper surface of this protuberance is provided with light shield layer.
3. keyboard as claimed in claim 2, is characterized in that, this light shield layer bends the side extending to lower film again after the edge bending of this topmost thin film extends to this protuberance.
4. keyboard as claimed in claim 2, it is characterized in that, this light shield layer is ink layer against sunshine.
5. keyboard as claimed in claim 1, it is characterized in that, also comprise the crown top of burner of the top being arranged at this luminescence component, this crown top of burner, between this keycap and this luminescence component, is provided with receiving space in order to accommodate this luminescence component.
6. keyboard as claimed in claim 5, is characterized in that, the top correspondence of this crown top of burner be provided with light that opening or hyalomere send for this luminescence component from bottom to top by irradiate this keycap.
7. keyboard as claimed in claim 5, it is characterized in that, this crown top of burner contacts with the upper surface of this topmost thin film, and the region that this circuit film layer upper surface is positioned at the surrounding of this crown top of burner is provided with light shield layer.
8. keyboard as claimed in claim 1, it is characterized in that, this circuit film layer is provided with the peristome adjacent with this installation portion further, and this peristome runs through this circuit film layer; This protuberance is arranged at the side near this peristome.
9. keyboard as claimed in claim 1, it is characterized in that, the region this topmost thin film being positioned at the surrounding of this luminescence component is provided with light shield layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102549.7A CN103218051B (en) | 2013-03-27 | 2013-03-27 | A kind of keyboard preventing light leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310102549.7A CN103218051B (en) | 2013-03-27 | 2013-03-27 | A kind of keyboard preventing light leak |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103218051A CN103218051A (en) | 2013-07-24 |
| CN103218051B true CN103218051B (en) | 2015-12-23 |
Family
ID=48815933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310102549.7A Active CN103218051B (en) | 2013-03-27 | 2013-03-27 | A kind of keyboard preventing light leak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103218051B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4212770A1 (en) * | 2021-11-09 | 2023-07-19 | Faurecia (China) Investment Co., Ltd. | An ultra-thin surface light source structure and an automobile interior comprising the same |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952659A (en) * | 2015-06-16 | 2015-09-30 | 苏州达方电子有限公司 | Backlight module and illuminating keyboard |
| CN107861631A (en) * | 2017-11-23 | 2018-03-30 | 苏州达方电子有限公司 | A kind of keyboard |
| CN114078645B (en) | 2020-08-18 | 2025-01-17 | 淮安达方电子有限公司 | Illuminated button structure |
| US11852861B2 (en) | 2021-01-29 | 2023-12-26 | Darfon Electronics Corp. | Luminous keyboard and optical module thereof |
| US12283439B2 (en) | 2021-05-27 | 2025-04-22 | Darfon Electronics (Huaian) Co., Ltd. | Illuminated keyswitch structure |
| US20230154697A1 (en) | 2021-05-27 | 2023-05-18 | Darfon Electronics (Huaian) Co., Ltd. | Illuminated keyswitch structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6536931B2 (en) * | 1999-12-06 | 2003-03-25 | Nec Corporation | Lighting device for electronic apparatus and lighting method for electronic apparatus |
| TW200502832A (en) * | 2003-07-09 | 2005-01-16 | Darfon Electronics Corp | Membrane circuit assembly and light-emitting keyboard using the same |
| JP3682827B2 (en) * | 1997-12-05 | 2005-08-17 | 日亜化学工業株式会社 | Nitride semiconductor laser device |
| CN2938211Y (en) * | 2006-06-05 | 2007-08-22 | 达方电子股份有限公司 | Luminous keyboard and its luminous module |
| TWM381117U (en) * | 2010-01-08 | 2010-05-21 | Darfon Electronics Corp | Key and keyboard with low light dispersion |
| EP2442209A2 (en) * | 2010-10-15 | 2012-04-18 | Primax Electronics Ltd | Keyboard |
-
2013
- 2013-03-27 CN CN201310102549.7A patent/CN103218051B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682827B2 (en) * | 1997-12-05 | 2005-08-17 | 日亜化学工業株式会社 | Nitride semiconductor laser device |
| US6536931B2 (en) * | 1999-12-06 | 2003-03-25 | Nec Corporation | Lighting device for electronic apparatus and lighting method for electronic apparatus |
| TW200502832A (en) * | 2003-07-09 | 2005-01-16 | Darfon Electronics Corp | Membrane circuit assembly and light-emitting keyboard using the same |
| CN2938211Y (en) * | 2006-06-05 | 2007-08-22 | 达方电子股份有限公司 | Luminous keyboard and its luminous module |
| TWM381117U (en) * | 2010-01-08 | 2010-05-21 | Darfon Electronics Corp | Key and keyboard with low light dispersion |
| EP2442209A2 (en) * | 2010-10-15 | 2012-04-18 | Primax Electronics Ltd | Keyboard |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4212770A1 (en) * | 2021-11-09 | 2023-07-19 | Faurecia (China) Investment Co., Ltd. | An ultra-thin surface light source structure and an automobile interior comprising the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103218051A (en) | 2013-07-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103218051B (en) | A kind of keyboard preventing light leak | |
| CN104121502A (en) | Light emitting device and image forming apparatus | |
| CN103092272A (en) | Portable electronic device, flat display device and backlight module | |
| CN103151206B (en) | Luminous button structure | |
| CN107180722A (en) | Illuminated keyboard | |
| US20190120472A1 (en) | Fingerprint button unit, light-emitting prompting device, and electronic apparatus | |
| CN202120794U (en) | Anti-dazzle key cap | |
| TWI592970B (en) | Illuminated keyboard, backlight module and manufacturing method thereof | |
| CN109309742A (en) | Mobile terminal skeleton and mobile terminal | |
| CN102263843A (en) | Mobile phone | |
| CN202094023U (en) | Backlight keyboard | |
| CN205379260U (en) | Dust catcher and display device thereof | |
| CN102710884B (en) | Scanning device | |
| CN103848294B (en) | The illuminator of lift car | |
| CN107861631A (en) | A kind of keyboard | |
| CN103486492A (en) | Display and backlight module and light source module thereof | |
| CN202521384U (en) | Backlight module and luminous keyboard with same | |
| TW201742092A (en) | Illuminated key | |
| CN102024603B (en) | Light guide key module | |
| CN201780917U (en) | Partially illuminated keyboard | |
| CN205986987U (en) | Housing, housing assembly and mobile terminal | |
| CN103017037A (en) | Backlight source structure and display device | |
| CN204593110U (en) | Increase the convex surface LED flat lamp of light-emitting area | |
| CN204513084U (en) | A kind of prism film combination unit and backlight display device | |
| TWM457957U (en) | Illuminated keyswitch structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |