CN109148196A - A kind of key device - Google Patents
A kind of key device Download PDFInfo
- Publication number
- CN109148196A CN109148196A CN201810974879.8A CN201810974879A CN109148196A CN 109148196 A CN109148196 A CN 109148196A CN 201810974879 A CN201810974879 A CN 201810974879A CN 109148196 A CN109148196 A CN 109148196A
- Authority
- CN
- China
- Prior art keywords
- guiding film
- several
- light source
- light guiding
- light
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/023—Light-emitting indicators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/023—Light-emitting indicators
- H01H2013/026—Light-emitting indicators with two or more independent lighting elements located inside the push button switch that illuminate separate zones of push buttons
Landscapes
- Push-Button Switches (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of key devices, it include: light guiding film, wiring board, light source and several metal pans are young, the wiring board and the light source are located at the adjacent two sides of the light guiding film, and side opposite with the light guiding film on the wiring board is arranged in several described metal pan sons；Each metal pan son corresponding position is provided with several shading pieces in the light guiding film and for several grooves of reflection light；From the guide-lighting center membrane to the light source direction, the quantity of each young corresponding several grooves of the metal pan gradually tails off, and the quantity of young corresponding several shading pieces of each metal pan gradually increases.Due to increasing the brightness of the light guiding film by the groove reflection light, and due to the brightness for reducing the light guiding film by the shading piece, by changing the quantity of the groove and the quantity of the shading piece to adjust the brightness of the light guiding film, this programme can be conducive to make the brightness uniformity of the light guiding film.
Description
Technical field
The present invention relates to key device field more particularly to a kind of key devices.
Background technique
Intelligent mobile communication equipment is more and more common at present, and the frequency that people use is also more and more, and what people used sets
The class that makes preparations for sowing is also very more.There is protection to have the equipment of full keyboard in some mobile devices, but it is logical for the movement of full keyboard
For interrogating equipment, the guide-lighting uniformity of each key is required very high in full keyboard.Do not have on traditional mobile communication equipment
There are many keys, it is not high for the guide-lighting uniformity requirement of key.But for supporting the mobile communication of full keyboard key to set
For standby, the uniformity of each key will be extremely important.The mobile communication equipment of one good guide-lighting uniformity will be brought
Good user experience can also alleviate visual fatigue when user sees keyboard for a long time.This requires design and produce when,
It is very high for the guide-lighting uniformity requirement of key.
In the prior art, traditional wireless telecommunications system with full keyboard key is carrying out the adjustment of key light guide uniformity
When, it is difficult to realize the key in different zones position and realizes uniformity and brightness unanimous circumstances.It would generally be by increasing light source
The mode mode realizing, but increase light source can bring button design structure limitation and press key lamp power consumption promotion, and
Also it realizes less than highly uniform effect.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of key device, purport
Solving the problems, such as that key device cannot achieve brightness uniformity in the prior art.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of key device, wherein include: light guiding film, wiring board, light source and several metal pans are young, the wiring board and
The light source is located at the adjacent two sides of the light guiding film, several described metal pan sons are arranged on the wiring board and institute
State the opposite side of light guiding film；Be provided in the light guiding film with each metal pan son corresponding position several shading pieces and
For several grooves of reflection light, several described grooves are located at opposite with the metal pan son one in the light guiding film
Side, several described shading pieces are located at the side for deviating from the metal pan son in the light guiding film；Extremely from the guide-lighting center membrane
The quantity of the light source direction, each young corresponding several grooves of the metal pan gradually tails off, and each metal pan
The quantity of young corresponding several shading pieces gradually increases.
The key device, wherein each several young corresponding described grooves of the metal pan and several described screenings
The sum of light part is equal.
The key device, wherein the shading piece is printed using black out ink.
The key device, wherein the groove is spherical groove.
The key device, wherein the circular in cross-section of the shading piece.
The key device, wherein the diameter of the shading piece is less than the diameter of the spherical groove.
The key device, wherein several described metal pan sons use Full keyboard array.
The key device, wherein several young corresponding described grooves of the metal pan are uniformly distributed.
The key device, wherein the shape size of young corresponding several grooves of the metal pan is consistent.
The key device, wherein the light source includes: first light source, second light source and third light source, and described
One light source and the second light source two sides that be located at the light guiding film opposite, the third light source and the second light source are same
Side；The first light source is located at the position of center line of the light guiding film, and the second light source and the third light source are located at
The two sides of the center line of the light guiding film.
The utility model has the advantages that due to the brightness for increasing the light guiding film by the groove reflection light, and due to by described
Shading piece reduces the brightness of the light guiding film, described to adjust by the quantity of the change groove and the quantity of the shading piece
The brightness of light guiding film, this programme can be conducive to make the brightness uniformity of the light guiding film.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of key device in the present invention.
Fig. 2 is the first structure diagram of light guiding film in the present invention.
Fig. 3 is the second structural schematic diagram of light guiding film in the present invention.
Fig. 4 is the enlarged drawing in Fig. 3 at A.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Please refer to Fig. 1-Fig. 4, the present invention provides a kind of key devices, comprising: light guiding film 1, wiring board 6, light source 4
And several metal pans son 5；The wiring board 6 and the light source 4 are located at the adjacent two sides of the light guiding film 1, several
Side opposite with the light guiding film 1 on the wiring board 6 is arranged in a metal pan son 5；In the light guiding film 1 and each
Young 5 corresponding positions of the metal pan are provided with several shading pieces 12 and several grooves 11 for reflection light, if described
A dry groove 11, which is located in the light guiding film 1, is located at institute with the young 5 opposite sides of the metal pan, several described shading pieces 12
State the side for deviating from the metal pan son 5 in light guiding film 1；From 1 center of light guiding film to 4 direction of light source, each gold
The quantity for belonging to corresponding several grooves 11 of pot son 5 gradually tails off, and each metal pan son 5 it is corresponding it is described several
The quantity of shading piece 12 gradually increases.
It is worth noting that since there is higher brightness close to the position of the light source 4 in the light guiding film 1, and it is separate
The position (center of the i.e. described light guiding film 1) of the light source 4 has compared with low-light level, in the present invention 1 back side of light guiding film (i.e.
In the light guiding film 1 with the young 5 opposite sides of the metal pan) the setting groove 11, light enters light from the light guiding film 1
Side is incident upon at the groove 11, and light is reflexed to the front of the light guiding film 1 (in the i.e. described light guiding film 1 by the groove 11
Away from young 5 sides of the metal pan), increase the brightness of the light guiding film 1.In contrast, on the front of the light guiding film 1
Shading piece 12 is used for shading, can reduce the brightness of the light guiding film 1.By the number for changing the groove 11 and the shading piece 12
To adjust young 5 corresponding positions of the metal pan in the light guiding film 1, (i.e. key zone, the key zone are provided with the groove to amount
With the shading piece, rather than key zone is not provided with the groove and the shading piece) brightness, make in the light guiding film 1 not
It is consistent with the brightness of key zone.The area coverage of corresponding several grooves 11 of metal pan son 5 is bigger, the groove 11
Transmitting is more to the positive light of the light guiding film 1, on the contrary then anti-.Can by changing single 11 opening area of groove,
Or change the quantity of several grooves 11, or single 11 opening area of groove and several grooves 11 simultaneously
Quantity adjusts the area coverages of several grooves 11.
Preferably, each metal pan son 5 is corresponding described several from 1 center of light guiding film to 4 direction of light source
The quantity of a groove 11 gradually tails off, and the quantity of corresponding several shading pieces 12 of each metal pan son 5 gradually increases
It is more.Namely from the direction close to 1 incident side of light guiding film to the direction far from 1 incident side of light guiding film, each metal
The quantity of corresponding several shading pieces 12 of pot son 5 gradually tails off.Specifically, as shown in figure 4, in order to adapt to produce because of distance
The variation of raw brightness, the shading piece 12 in the light guiding film 1 in single key zone close to 1 incident side of light guiding film
Quantity be more than far from 1 incident side of light guiding film the shading piece 12, can make in this way the brightness of the light guiding film 1 compared with
Uniformly.
Light guiding film provided by the invention, due to increasing brightness by 11 reflection light of groove, and due to by described
Shading piece 12 reduces brightness, by changing the quantity of the groove 11 and the quantity of the shading piece 12 to adjust the light guiding film
1 brightness, this programme can be conducive to make the brightness uniformity of the light guiding film 1.
More specifically, key device of the present invention, please referring also to Fig. 1-Fig. 3, the key device further include:
Key lid 2, pressing piece 3 and steel disc 7；The key lid 2, the pressing piece 3, the light guiding film 1, the metal pan son 5, the line
Road plate 6, the steel disc 7 are set gradually, and specifically, the light source is three, respectively first light source, second light source, third light
Source, the first light source and the second light source two sides that be located at the light guiding film 1 opposite, the third light source with it is described
Second light source is ipsilateral；The first light source is located at the position of center line of the light guiding film 1, the second light source and the third light
Source is located at the two sides of the center line of the light guiding film 1.
In one particular embodiment of the present invention, several corresponding described grooves 11 of each metal pan son 5 and institute
The sum for stating several shading pieces 12 is equal.
Specifically, it can according to need setting, the quantity of described several grooves 11 and several shading pieces 12, when
The total phase of each metal pan son 5 corresponding described several grooves 11 and several shading pieces 12 can also so be made
Deng.
In one particular embodiment of the present invention, the shading piece 12 is printed using black out ink.
Specifically, the shading piece 12 is printed using black out ink, during preparing shading piece 12 first
Black out ink is printed on the positive key zone of the light guiding film 1, then carries out low-temperature bake, the shading piece being prepared
12 have preferable wearability be not in the case where shading piece 12 falls off in long-time use process.
In a preferred embodiment of the present invention, as Figure 1-Figure 2, the groove 11 is spherical groove 11.It is described
The shape size of corresponding several grooves 11 of metal pan son 5 is consistent.Several are recessed described in the metal pan son is corresponding
Slot 11 is uniformly distributed.
Specifically, the groove 11 can be spherical groove 11, can also be such as triangular prism shaped recessed with other shapes of groove
Slot, cylinder shape groove etc..Each groove 11 in the light guiding film 1 in single key zone it is in the same size, and described lead
The groove 11 on light film 1 in each key zone it is of different sizes.The groove 11 of close 1 incident side of light guiding film covers
Area coverage of the capping product less than the groove 11 far from 1 incident side of light guiding film, the covering surface of groove 11 described here
Product can be embodied in the single size of 11 opening area of groove and the quantity of the groove 11.As shown in figure 3, close to described
11 opening area of the groove of 1 incident side of light guiding film is smaller or negligible amounts, described recessed far from 1 incident side of light guiding film
The quantity of the larger and described groove 11 of 11 opening area of slot is more.In order to make the light in the light guiding film 1 in single key zone
Intensity is consistent, and the shape size of young corresponding several grooves 11 of the metal pan is consistent, and the metal pan son is corresponding
Several described grooves 11 be uniformly distributed, i.e., the described groove 11 is evenly distributed in the light guiding film 1 in single key zone.
In a preferred embodiment of the present invention, as shown in figs 2-4, the circular in cross-section of the shading piece 12.
The diameter of the shading piece 12 is less than the diameter of the spherical groove.
Specifically, the shading piece 12 can be round shading piece, naturally it is also possible to it is other shapes of shading piece, such as three
It is angular, quadrangle, ellipse etc..The shading piece 12 is the light absorption that will be radiated on the shading piece 12, the screening
Light part 12 can also use reflecting component, and the light being emitted on the reflecting component reflexes in the light guiding film 1, continue with light
Line.The shape size of all shading pieces 12 is identical, and only the distance in arrangement two-by-two between the shading piece 12 is different
Sample.It is different with the groove 11 to be, the size of the shading piece 12 be it is fixed, had in this way using lesser shading piece 12
Conducive to avoiding the front because of light guiding film 1 described caused by being added to shading piece 12 from stain occur.
In a preferred embodiment of the present invention, as shown in Fig. 2-Fig. 3, several described metal pan sons 5 use full key board
Disk arrangement.
Specifically, the light guiding film 1 of the invention can be used for 9 palace format keyboards, can be used for full keyboard.It is usually complete
The size of keyboard is larger, and the brightness uniformity of the light guiding film 1 is insufficient to allow by the way of increasing quantity of light source, and uses this hair
The mode of the bright groove 11 and the shading piece 12 can make the brightness uniformity of the light guiding film 1.
In conclusion the present invention realizes a kind of key device, comprising: light guiding film, wiring board, light source and several metals
Pot is young, and the wiring board and the light source are located at the adjacent two sides of the light guiding film, several described metal pan son settings
The side opposite with the light guiding film on the wiring board；It is set in the light guiding film with each metal pan son corresponding position
Several shading pieces and several grooves for reflection light are equipped with, several described grooves are located in the light guiding film and institute
The opposite side of metal pan son is stated, several described shading pieces are located at the side for deviating from the metal pan son in the light guiding film；
From the guide-lighting center membrane to the light source direction, the quantity of each young corresponding several grooves of the metal pan gradually becomes
It is few, and the quantity of young corresponding several shading pieces of each metal pan gradually increases.Due to passing through the groove reflection
Light increases the brightness of the light guiding film, and the brightness due to reducing the light guiding film by the shading piece, by changing institute
The quantity of groove and the quantity of the shading piece are stated to adjust the brightness of the light guiding film, this programme can be conducive to make the light guiding film
Brightness uniformity.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of key device characterized by comprising light guiding film, wiring board, light source and several metal pans are young, described
Wiring board and the light source are located at the adjacent two sides of the light guiding film, several described metal pan sons are arranged in the route
The side opposite with the light guiding film on plate；Each metal pan son corresponding position is provided with several in the light guiding film
Shading piece and several grooves for reflection light, several described grooves are located in the light guiding film and the metal pan is young
Opposite side, several described shading pieces are located at the side for deviating from the metal pan son in the light guiding film；From the leaded light
Center membrane is to the light source direction, and the quantity of each young corresponding several grooves of the metal pan gradually tails off, and each institute
The quantity for stating young corresponding several shading pieces of metal pan gradually increases.
2. key device according to claim 1, which is characterized in that several are recessed described in each metal pan son is corresponding
Slot is equal with the sum of several shading pieces.
3. key device according to claim 1, which is characterized in that the shading piece is printed using black out ink.
4. key device according to claim 1, which is characterized in that the groove is spherical groove.
5. key device according to claim 4, which is characterized in that the circular in cross-section of the shading piece.
6. key device according to claim 5, which is characterized in that the diameter of the shading piece is less than the spherical groove
Diameter.
7. key device according to claim 1, which is characterized in that several described metal pan sons are arranged using full keyboard
Column.
8. key device according to claim 1, which is characterized in that several young corresponding described grooves of the metal pan
It is uniformly distributed.
9. key device according to claim 1, which is characterized in that several young corresponding described grooves of the metal pan
Shape size it is consistent.
10. key device according to claim 1, which is characterized in that the light source includes: first light source, second light source
And third light source, the first light source and the second light source two sides that be located at the light guiding film opposite, the third
Light source and the second light source are ipsilateral；The first light source is located at the position of center line of the light guiding film, the second light source and
The third light source is located at the two sides of the center line of the light guiding film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974879.8A CN109148196B (en) | 2018-08-24 | 2018-08-24 | Key device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974879.8A CN109148196B (en) | 2018-08-24 | 2018-08-24 | Key device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109148196A true CN109148196A (en) | 2019-01-04 |
| CN109148196B CN109148196B (en) | 2021-01-08 |
Family
ID=64827955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810974879.8A Active CN109148196B (en) | 2018-08-24 | 2018-08-24 | Key device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109148196B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010397A (en) * | 2019-05-15 | 2019-07-12 | 光宝电子(广州)有限公司 | Luminous button |
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|---|---|---|---|---|
| JP2002343122A (en) * | 2001-05-18 | 2002-11-29 | Kyocera Corp | Illumination panel, liquid crystal display equipment, and portable terminal or display |
| CN202217608U (en) * | 2011-08-24 | 2012-05-09 | 精元电脑(江苏)有限公司 | Light guide structure for touch control keyboard |
| CN202305871U (en) * | 2011-09-28 | 2012-07-04 | 深圳市同心键科技有限公司 | Keyboard light guiding film and keyboard using same |
| CN202434396U (en) * | 2012-02-10 | 2012-09-12 | 精元电脑股份有限公司 | Light guide diaphragm structure of illuminant keyboard |
| CN102800517A (en) * | 2011-05-24 | 2012-11-28 | 致伸科技股份有限公司 | Luminous keyboard |
| CN102866451A (en) * | 2011-07-08 | 2013-01-09 | 毅嘉科技股份有限公司 | Light guide plate structure and manufacturing method thereof |
| CN102879850A (en) * | 2011-07-11 | 2013-01-16 | 毅嘉科技股份有限公司 | Light guide plate structure |
| CN203179768U (en) * | 2013-02-05 | 2013-09-04 | 株式会社Magma | Keyboard lighting device |
| CN203453993U (en) * | 2013-06-20 | 2014-02-26 | 苏州创佳电子材料有限公司 | Light guiding sheet assembly for keyboard and keyboard |
| US8890014B1 (en) * | 2013-07-19 | 2014-11-18 | Primax Electronics Ltd. | Luminous keyboard and light guide plate module thereof |
-
2018
- 2018-08-24 CN CN201810974879.8A patent/CN109148196B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002343122A (en) * | 2001-05-18 | 2002-11-29 | Kyocera Corp | Illumination panel, liquid crystal display equipment, and portable terminal or display |
| CN102800517A (en) * | 2011-05-24 | 2012-11-28 | 致伸科技股份有限公司 | Luminous keyboard |
| CN102866451A (en) * | 2011-07-08 | 2013-01-09 | 毅嘉科技股份有限公司 | Light guide plate structure and manufacturing method thereof |
| CN102879850A (en) * | 2011-07-11 | 2013-01-16 | 毅嘉科技股份有限公司 | Light guide plate structure |
| CN202217608U (en) * | 2011-08-24 | 2012-05-09 | 精元电脑(江苏)有限公司 | Light guide structure for touch control keyboard |
| CN202305871U (en) * | 2011-09-28 | 2012-07-04 | 深圳市同心键科技有限公司 | Keyboard light guiding film and keyboard using same |
| CN202434396U (en) * | 2012-02-10 | 2012-09-12 | 精元电脑股份有限公司 | Light guide diaphragm structure of illuminant keyboard |
| CN203179768U (en) * | 2013-02-05 | 2013-09-04 | 株式会社Magma | Keyboard lighting device |
| CN203453993U (en) * | 2013-06-20 | 2014-02-26 | 苏州创佳电子材料有限公司 | Light guiding sheet assembly for keyboard and keyboard |
| US8890014B1 (en) * | 2013-07-19 | 2014-11-18 | Primax Electronics Ltd. | Luminous keyboard and light guide plate module thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010397A (en) * | 2019-05-15 | 2019-07-12 | 光宝电子(广州)有限公司 | Luminous button |
| US11158470B2 (en) | 2019-05-15 | 2021-10-26 | Lite-On Electronics (Guangzhou) Limited | Luminous key |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109148196B (en) | 2021-01-08 |
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