CN208738097U - Luminous key structure - Google Patents
Luminous key structure Download PDFInfo
- Publication number
- CN208738097U CN208738097U CN201821555546.3U CN201821555546U CN208738097U CN 208738097 U CN208738097 U CN 208738097U CN 201821555546 U CN201821555546 U CN 201821555546U CN 208738097 U CN208738097 U CN 208738097U
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- keycap
- groove
- 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.)
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- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims description 18
- 210000002421 cell wall Anatomy 0.000 claims description 17
- 201000009310 astigmatism Diseases 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000003760 hair shine Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- FHQVHHIBKUMWTI-ZCXUNETKSA-N 1-palmitoyl-2-oleoyl phosphatidylethanolamine Chemical compound CCCCCCCCCCCCCCCC(=O)OCC(COP(O)(=O)OCCN)OC(=O)CCCCCCC\C=C/CCCCCCCC FHQVHHIBKUMWTI-ZCXUNETKSA-N 0.000 description 1
- 206010003084 Areflexia Diseases 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
Abstract
The utility model provides a luminous button structure, including light guide plate and key cap, the first side of light guide plate is provided with a plurality of first recesses, the second side of light guide plate be provided with the second recess of first recess one-to-one, each be provided with the LED lamp in the first recess respectively, first recess makes the light scattering that the LED lamp sent gets into the light guide plate, the second recess makes thereby light reflection in the light guide plate realizes light and follows the light guide plate is evenly distributed, the key cap subsides are located the second side of light guide plate, the key cap is provided with the printing opacity district. Adopt the utility model discloses technical scheme's luminous button structure, this luminous button structure can make the button evenly luminous when pressing, avoids appearing button local bright spot and dark space.
Description
Technical field
The utility model relates to technical field of key, and in particular to a kind of luminous button structure.
Background technique
Existing luminous button is arranged lamp at the center of key, and is in key assembling key set, key and key set
Transparent material, in pressing keys, light, to key side wall, is dissipated into key set by key side wall by key light guide, from
And it realizes key set and shines.Based on above structure, since key plays the role of light-guiding pillar, the light of key center is in key-side
It is directly transmitted through key set after wall refraction, since generally point light source, the structure of side wall leaded light that are arranged in key can generate office
Portion's bright spot, so that the side wall of key set shines darker, and side wall light guide structure makes optical path curvature too big, and areflexia optical path is set
Thus meter causes lamp effect uneven.
Summary of the invention
The purpose of the utility model is to provide a kind of luminous button structure, which enables to key
The uniformly light-emitting in pressing, avoids the occurrence of key part bright spot and dark space.
Based on this, the utility model provides a kind of luminous button structure, including light guide plate and keycap, the light guide plate
First side is provided with several first grooves, and the second side of the light guide plate is provided with one-to-one with first groove
Second groove is respectively arranged with LED light, the light that first groove issues the LED light in each first groove
Scattering enters the light guide plate, and second groove makes the reflection of the light in the light guide plate to realize that light is led described in
Tabula rasa is evenly distributed, and the keycap is attached at the second side of the light guide plate, and the keycap is provided with transparent area.
Preferably, first groove is arc groove, and the curved opening of the arc groove is towards first side
Face setting, the cell wall of the arc groove form astigmatism face, and second groove is rotary table slot, the big nose circle direction of the rotary table slot
The second side setting, the cell wall of the rotary table slot form reflecting surface.
Preferably, the periphery of the second side of the light guide plate is provided with solarization line.
Preferably, the middle part silk-screen of the keycap has black layer, and the circumference of the keycap is provided with several hollow outs
Hole, each hollow hole region form the transparent area, and the aperture of each hollow hole is along the keycap circumference to described
Direction in the middle part of keycap is linearly incremented by or linear decrease.
Preferably, each first groove is in uniform ring centered on the center of the light guide plate around setting, and
Light guiding film is provided in each second groove.
Preferably, the outer wall of the keycap is arc-shaped, and the outer wall of the keycap is round slip surface.
Preferably, further include mainboard, elastic supporting member for supporting optical member and FPC, the two sides of the elastic supporting member for supporting optical member respectively with institute
The first side for stating mainboard and the light guide plate abuts against, and the FPC is installed in the first side of the light guide plate, and described
Mainboard is electrically connected with the FPC, and each LED light is located on the FPC, is provided on the mainboard and each LED light institute
Corresponding key switch is provided with pressing protrusion corresponding with the key switch on the elastic supporting member for supporting optical member.
Preferably, holding tank is provided in the first side of the light guide plate, the FPC is set to the receiving
In slot, and the FPC is connected with the first side of the light guide plate by the first gum, the keycap and the light guide plate
Second side is connected by the second gum.
It preferably, further include the shell as made of front housing and rear shell snapping, the mainboard, the elastic supporting member for supporting optical member
It is respectively positioned in the shell with the FPC, the front housing is equipped with the through-hole passed through for the light guide plate, and the light guide plate is arranged in
The front housing.
Preferably, the lateral wall of the light guide plate is provided with annular protrusion, the end face of the annular protrusion and institute
State the first side flush of light guide plate, the side wall formation limited step of the annular protrusion and the light guide plate, the leaded light
Plate is abutted against by the inner wall of the step surface and the front housing of the limited step.
Implement the utility model embodiment, has the following beneficial effects:
The light of LED light is scattered along the cell wall of the first groove, the light that thus the first groove issues LED light
Scattering enters light guide plate, and the light scattered into light guide plate can be reflected along the cell wall of the second groove, so that
Light can uniformly dispersing at the edge of light guide plate, the second groove makes the reflection of the light in light guide plate to realize light along leading
Tabula rasa is evenly distributed, and above structure makes the light guide plate form a Lamp cup formula catoptric arrangement, so that point light source is formed uniformly
Area source, thus guarantee monolith light guide plate can uniformly light-emitting, uniform light is appeared by the transparent area of keycap, to make
Keycap can uniformly light-emitting, avoid the occurrence of keycap part bright spot and dark space.
Detailed description of the invention
Fig. 1 is the explosive view of luminous button structure in the utility model embodiment.
Fig. 2 is the side-view of light guide plate in the utility model embodiment.
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Fig. 4 is the structural schematic diagram of keycap in the utility model embodiment.
Fig. 5 is the partial enlarged view in Fig. 4 at B.
In figure: 1- light guide plate, 2- keycap, 3- mainboard, 4- elastic supporting member for supporting optical member, the first gum of 5-FPC, 6-, 7- are led
Light film, the second gum of 8-, 9- front housing, 10- rear shell；The first groove of 11-, the second groove of 12-, 13- shine line, 14- annular
Protrusion, 21- hollow hole, 31- key switch, 41- pressing protrusion, 51-LED lamp.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be understood that various information are described in the utility model using term " first ", " second " etc., but these
Information should not necessarily be limited by these terms, these terms are only used to for same type of information being distinguished from each other out.For example, not departing from this
In the case where utility model range, " first " information can also be referred to as " second " information, and similar, " second " information can also be with
Referred to as " first " information.It should be pointed out that the direction of propagation for being oriented to light of the present embodiment reference arrow.
As shown in Figures 1 to 5, described to lead the present embodiment provides a kind of luminous button structure, including light guide plate 1 and keycap 2
The first side of tabula rasa 1 is provided with several first grooves 11, and the second side of the light guide plate 1 is provided with and first groove
11 one-to-one second grooves 12, are arranged in a one-to-one correspondence the quantity for referring to the first groove 11 and the second groove 12 and position one by one
It is corresponding, the first groove 11 and the setting of 12 face of the second groove in the present embodiment, and the notch of the two is towards on the contrary, each described first
LED light 51 is respectively arranged in groove 11, LED light 51 is located in the first groove 11, and the light of point light source LED light 51 is along first
The cell wall of groove 11 is scattered, described in the light scattering entrance that thus first groove 11 issues the LED light 51
Light guide plate 1, and the light scattered into light guide plate 1 can be reflected along the cell wall of the second groove 12, as shown in figure 3, light
Line scattering enters to light guide plate 1, and hereafter light realizes reflection along the cell wall of the second groove 12, so that light also can be uniform
It is dispersed in the edge of light guide plate 1, second groove 12 makes the reflection of the light in the light guide plate 1 to realize light along institute
It states light guide plate 1 to be evenly distributed, above structure makes the light guide plate 1 form a Lamp cup formula catoptric arrangement, so that point light source shape
At uniform area source, thus guarantee monolith light guide plate 1 can uniformly light-emitting, the keycap 2 is attached at the of the light guide plate 1
Two side faces, the keycap 2 are provided with transparent area, and uniform light is appeared by transparent area, so that keycap 2 can uniformly be sent out
Light avoids the occurrence of the local bright spot of keycap 2 and dark space.It should be pointed out that can be pressed when pressing keycap 2 in the present embodiment
The switch of LED light 51 is to make LED light 51 shine, and light makes 1 uniformly light-emitting of light guide plate at this time, and hereafter light penetrates keycap
2 realize key light emitting.
Based on above technical scheme, the light of LED light 51 is scattered along the cell wall of the first groove 11, and thus first is recessed
The light scattering that slot 11 issues LED light 51 enters light guide plate 1, and the light that scattering enters light guide plate 1 can be along second
The cell wall of groove 12 is reflected so that light can uniformly dispersing at the edge of light guide plate 1, the second groove 12 to lead
To realize that light is evenly distributed along light guide plate 1, above structure makes the light guide plate 1 form one for light reflection in tabula rasa 1
A Lamp cup formula catoptric arrangement so that point light source forms uniform area source, thus guarantee monolith light guide plate 1 can uniformly light-emitting,
Uniform light is appeared by the transparent area of keycap 2 so that keycap 2 can uniformly light-emitting, it is locally bright to avoid the occurrence of keycap 2
Point and dark space.
In the present embodiment, first groove 11 is arc groove, and the curved opening of the arc groove is towards described first
Side setting, the cell wall of the arc groove form astigmatism face, and the light that LED light 51 generates can be carried out along the cell wall of arc groove
Scattering, so that scattering light is able to enter in light guide plate 1 and light-dispersing effect is made more evenly, second groove 12 is rotary table
The big nose circle of slot, the rotary table slot is arranged towards the second side, and the cell wall of rotary table slot forms an inclination cambered surface, and tilts
It is arranged towards the peripheral part of light guide plate 1, the cell wall of the rotary table slot forms reflecting surface, and the reflecting surface of arc can be mentioned further
High reflection effect, light makes light can be uniformly distributed in the edge of light guide plate 1 after reflective surface, so that light
It is uniformly distributed along monolith light guide plate 1.
Preferably, the periphery of the second side of the light guide plate 1, which is provided with, shines line 13, and shining line 13 can be in light guide plate 1
Second side periphery processing strip pattern, plain arch or salient point etc., since light is after the reflective surface of the second groove 12
There is more light to reflex to the edge of light guide plate 1,13 structure of line is shone by setting, its surface roughness is enabled to increase, so that
The periphery light of light guide plate 1 more evenly, and avoids the occurrence of local bright spot.Further, the middle part silk-screen of the keycap 2 has black
Layer, so that 2 middle part of keycap is opaque, the circumference of the keycap 2 is provided with several hollow holes 21, each 21 institute of hollow hole
The transparent area is formed in region, light is appeared along the circumference of keycap 2, and the aperture of each hollow hole 21 is along the keycap 2
The direction at circumference to 2 middle part of keycap is linearly incremented by or linear decrease, and the linear gradient structure of hollow hole 21 makes light
Line forms the effect of a light gradient after transparent area appears, to further increase the aesthetic feeling after 2 light transmission of keycap.
Wherein, each first groove 11 is in uniform ring centered on the center of the light guide plate 1 around setting, so that
LED light 51, around setting, further increases the light uniformity of light guide plate 1, and each described second along 1 center uniform ring of light guide plate
Be provided with light guiding film 7 in groove 12, light guiding film 7 have it is ultra-thin, shine uniformly, color desktop the features such as, can be further
Mention the light uniformity of light guide plate 1, while the color of light can also be replaced according to demand so that keycap 2 issue it is different
The light of color.Preferably, the outer wall of the keycap 2 is arc-shaped, and the outer wall of the keycap 2 is round slip surface, so that user
When pressing keycap 2, sense of touch is good.
Specifically, which further includes mainboard 3, elastic supporting member for supporting optical member 4 and FPC5, the two sides of the elastic supporting member for supporting optical member 4
The first side with the mainboard 3 and the light guide plate 1 abuts against respectively, and the FPC5 is installed on the first of the light guide plate 1
On side, and the mainboard 3 is electrically connected with the FPC5, and (FlexiblePrintedCircuit is referred to as flexible circuit board
It FPC) is that there is height reliability, excellent pliable printed circuit using polyimides or polyester film as one kind made of substrate
Thus plate meets key press demand, each LED light 51 is located on the FPC5, be provided on the mainboard 3 with it is each described
Key switch 31 corresponding to LED light 51 a, it should be pointed out that key switch 31 controls all LED light in the present embodiment
51 on-off is provided with pressing protrusion 41 corresponding with the key switch 31, pressing protrusion 11 on the elastic supporting member for supporting optical member 4
It is equipped with lug boss (not regarding out in figure) in the other side of elastic supporting member for supporting optical member 4, lug boss is correspondingly arranged with key switch 31.Based on upper
Structure is stated, keycap 2 and light guide plate 1 form button assembly, and in pressing keys component, elastic supporting member for supporting optical member 4 deforms and makes
Pressing protrusion 41 presses the key switch 31 on mainboard 3, so that key switch 31 is triggered and LED light 51 is made to shine, this
The light of LED light 51 is uniformly distributed in light guide plate 1 and realizes key light emitting through keycap 2 afterwards, and above structure is compact and makes
The luminous button structure occupies little space, and is suitable for large and medium-sized key.The elasticity branch it should be pointed out that the present embodiment is hit by a bullet
The characteristics such as the material of support member 4 is silica gel, and the elastic supporting member for supporting optical member 4 of silica gel material is used to have wear-resisting property good, and elasticity is good, thus
Meet repeatedly pressing operation, and the elastic supporting member for supporting optical member 4 of silica gel will not generate pressing noise during pressing, so that user experience
Well.
In addition, being provided with holding tank in the first side of the light guide plate 1, the FPC5 is set in the holding tank,
FPC5 stabilization is arranged in the first side of light guide plate 1 in holding tank, and the first side of the FPC5 and the light guide plate 1
It is connected by the first gum 6, the keycap 2 is connected with the second side of the light guide plate 1 by the second gum 8, and is adopted
Make the assembling operation of total more convenient with the type of attachment of the first gum 6 and the second gum 8, and 6 He of the first gum
Second gum 8 is transparent material, to guarantee the normal transmission of light.
In the present embodiment, which further includes the shell as made of 10 snapping of front housing 9 and rear shell, and shell makes
Key stabilization is obtained to be set in shell, the mainboard 3, the elastic supporting member for supporting optical member 4 and the FPC5 are respectively positioned in the shell,
The front housing 9 is equipped with the through-hole that passes through for light guide plate 1, and the light guide plate 1 is arranged in the front housing 9, light guide plate 1 with 2 groups of keycap
At button assembly, button assembly can back and forth be pressed along front housing 9, to realize the pressing of button assembly.Preferably, institute
The lateral wall for stating light guide plate 1 is provided with annular protrusion 14, and the end face of the annular protrusion 14 is equal with the first side of light guide plate 1
Together, the side wall of the annular protrusion 14 and the light guide plate 1 forms limited step, and the light guide plate 1 passes through the limited step
Step surface and abutted against with the inner wall of the front housing 9, limited step stablizes light guide plate 1 and front housing 9 to be arranged, avoid leaded light
Plate 1 pops up during pressing from the through-hole of front housing 9, improves the stability of the press-key structure.
Using the luminous button structure of the utility model embodiment, the light of LED light 51 along the first groove 11 cell wall
It is scattered, the light scattering that thus the first groove 11 issues LED light 51 enters light guide plate 1, and scatters and enter light guide plate 1
Light can be reflected along the cell wall of the second groove 12 so that light can uniformly dispersing on the side of light guide plate 1
Edge, the second groove 12 make the reflection of the light in light guide plate 1 to realize that light is evenly distributed along light guide plate 1, above structure
So that the light guide plate 1 forms a Lamp cup formula catoptric arrangement, so that point light source forms uniform area source, to guarantee that monolith is led
Tabula rasa 1 can uniformly light-emitting, uniform light appeared by the transparent area of keycap 2 so that keycap 2 can uniformly light-emitting,
Avoid the occurrence of the local bright spot of keycap 2 and dark space.
In the description of the present invention, it should be understood that term " on ", "lower", "left", "right", "top", "bottom" etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and replacement can also be made, these change
It also should be regarded as the protection scope of the utility model into replacement.
Claims (10)
1. a kind of luminous button structure, it is characterised in that: including light guide plate and keycap, the first side of the light guide plate is provided with
Several first grooves, the second side of the light guide plate are provided with and one-to-one second groove of first groove, each institute
It states and is respectively arranged with LED light in the first groove, led described in the light scattering entrance that first groove issues the LED light
Tabula rasa, second groove make the reflection of the light in the light guide plate to realize light along the light guide plate in uniform point
Cloth, the keycap are attached at the second side of the light guide plate, and the keycap is provided with transparent area.
2. luminous button structure according to claim 1, it is characterised in that: first groove is arc groove, the arc
The curved opening of shape slot is arranged towards the first side, and the cell wall of the arc groove forms astigmatism face, and second groove is
The big nose circle of rotary table slot, the rotary table slot is arranged towards the second side, and the cell wall of the rotary table slot forms reflecting surface.
3. luminous button structure according to claim 2, it is characterised in that: the periphery of the second side of the light guide plate is set
It is equipped with solarization line.
4. luminous button structure according to claim 3, it is characterised in that: the middle part silk-screen of the keycap has black layer,
The circumference of the keycap is provided with several hollow holes, and each hollow hole region forms the transparent area, each hollow out
Direction of the aperture in hole in the middle part of the keycap circumference to the keycap is linearly incremented by or linear decrease.
5. luminous button structure according to claim 1, it is characterised in that: each first groove is with the light guide plate
Light guiding film is provided with around setting, and in each second groove in uniform ring centered on center.
6. luminous button structure according to claim 1, it is characterised in that: the outer wall of the keycap is arc-shaped, and described
The outer wall of keycap is round slip surface.
7. luminous button structure according to any one of claims 1 to 6, it is characterised in that: further include mainboard, resilient support
Part and FPC, first side of the two sides of the elastic supporting member for supporting optical member respectively with the mainboard and the light guide plate abuts against, described
FPC is installed in the first side of the light guide plate, and the mainboard is electrically connected with the FPC, and each LED light is located at described
On FPC, be provided on the mainboard with key switch corresponding to each LED light, be provided on the elastic supporting member for supporting optical member with
The corresponding pressing protrusion of the key switch.
8. luminous button structure according to claim 7, it is characterised in that: be provided in the first side of the light guide plate
Holding tank, the FPC are set in the holding tank, and the first side of the FPC and the light guide plate passes through the first gum
It is connected, the keycap is connected with the second side of the light guide plate by the second gum.
9. luminous button structure according to claim 7, it is characterised in that: further include as made of front housing and rear shell snapping
Shell, the mainboard, the elastic supporting member for supporting optical member and the FPC are respectively positioned in the shell, and the front housing, which is equipped with, supplies the leaded light
The through-hole that plate passes through, the light guide plate are arranged in the front housing.
10. luminous button structure according to claim 9, it is characterised in that: the lateral wall of the light guide plate is provided with ring
Shape protrusion, the first side flush of the end face of the annular protrusion and the light guide plate, the annular protrusion and the leaded light
The side wall of plate forms limited step, and the light guide plate is offseted by the inner wall of the step surface and the front housing of the limited step
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555546.3U CN208738097U (en) | 2018-09-21 | 2018-09-21 | Luminous key structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821555546.3U CN208738097U (en) | 2018-09-21 | 2018-09-21 | Luminous key structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208738097U true CN208738097U (en) | 2019-04-12 |
Family
ID=66034402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821555546.3U Active CN208738097U (en) | 2018-09-21 | 2018-09-21 | Luminous key structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208738097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140420A (en) * | 2021-03-18 | 2021-07-20 | 杭州当贝网络科技有限公司 | Key assembly and electrical equipment |
-
2018
- 2018-09-21 CN CN201821555546.3U patent/CN208738097U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113140420A (en) * | 2021-03-18 | 2021-07-20 | 杭州当贝网络科技有限公司 | Key assembly and electrical equipment |
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