CN203179768U - Keyboard lighting device - Google Patents
Keyboard lighting device Download PDFInfo
- Publication number
- CN203179768U CN203179768U CN 201320066958 CN201320066958U CN203179768U CN 203179768 U CN203179768 U CN 203179768U CN 201320066958 CN201320066958 CN 201320066958 CN 201320066958 U CN201320066958 U CN 201320066958U CN 203179768 U CN203179768 U CN 203179768U
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- Prior art keywords
- keyboard
- light
- light source
- mark part
- guide sheet
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Abstract
The utility model aims at providing a keyboard lighting device. With the device, brightness difference caused by the distance between a light source and a contour line of a mark part is minimized, and a glaring phenomenon of the mark part and a blooming phenomenon at the contour line can be minimized by diffusion. The utility model relates to the keyboard lighting device characterized in comprising a keyboard with a mark part used for function key operation, a light source arranged on a lower part in the keyboard and used for irradiating light to the keyboard mark part, and a light guide sheet arranged between the keyboard mark and the light source and used for guiding light to the mark part. A concave-convex reflective pattern used for reflecting light to the mark part is formed on the bottom surface of the light guide sheet towards the light source side. A light shielding plate used for blocking light from the light source is arranged between the keyboard and the light guide sheet or between the light guide sheet and the light source. A plurality of through holes translucent to the keyboard are formed on the light shielding plate. The plurality of through holes are arranged according to the contour line of the mark part formed on the keyboard.
Description
Technical field
The utility model relates to keyboard illuminating apparatus, relates in more detail come uniform irradiation to be formed at literal on the keyboard of mobile communication terminals such as mobile phone or electronic installation or the keyboard illuminating apparatus of figure by soft light.
Background technology
Usually, on mobile communication terminal such as mobile phone or the display window as devices such as electronic instruments, can possess and be useful on the picture and the keyboard that is used for the function key operation that Presentation Function is implemented image.
Fig. 1 represents mobile phone as an example, possesses on the display window of mobile phone picture 1 and keyboard 2 are arranged.Recently, along with the mode of operation of the function key of keyboard 2 is converted to touchly by button, the size of picture 1 becomes increasing, and 2 on keyboard possesses the mark part 2a for MIN function key operation, thereby its size becomes more and more littler.
In addition, as shown in Figures 2 and 3, the mark part 2a of keyboard 2 forms light-permeable, represents its function by using literal or mark, and keyboard 2 inside possess and are useful on the lighting device that illuminates mark part 2a.
Lighting device, its structure comprises: the light source 3 that is made of LED; Light guide sheet 4 is arranged between keyboard 2 and the light source 3, will guide the identification division 2a to keyboard 2 from the light of light source 3 irradiations.In addition, light guide sheet 4 forms the reflection graphic patterns 4a with concavo-convex formation on the bottom surface of light source 3 sides, and reflection graphic patterns 4a spreads to carry out the function of shining mark part 2a equably to the catoptrical while of mark part 2a by light.
In the past, be the side direction that the light source 3 of described lighting device is placed in light guide sheet 4, and come lead-in light by the side end face of light guide sheet 4, but this structure is because can enlarge the big or small corresponding shortcoming that diminishes that keyboard 2 shared zones cause making picture 1.
Therefore, as shown in Figure 2, considering by light source 3 is placed in mark part 2a below reduce keyboard 2 the zone, increase the size of picture 1.As mentioned above, light source 3 is placed under the mark part 2a also can be by light guide sheet 4 reflection graphic patterns 4a the light reflection is illuminated mark part 2a by diffusion to mark part 2a the time.
But the illumination firing angle of the light source 3 that is made of LED is about 70 degree, and because the distance between mark part 2a and the light source is too short, the part of mark part 2a can break away from the illumination firing angle.Therefore, can cause the mark part 2a that is positioned at from light source 3 near field to be shone excessively, be positioned at and to be shone secretly relatively from the mark part 2a in territory, light source 3 far field, thereby have the shortcoming that can't illuminate mark part 2a integral body with uniform brightness.
In addition because light source 3 be placed in mark part 2a following can ether bright light shine mark part 2a, therefore can cause twinkling phenomenon, and because halation phenomenon exists the problem that the outline line of mark part 2a can't clear demonstration.Particularly, shorten mark part 2a and 3 of light sources apart from the time, mark part 2a can be shone brightlyer, so exists the problem of the factor that can become the limiting handset attenuation.
The utility model content
(technical problem that will solve)
The utility model proposes in order to solve aforesaid problem, its purpose is to provide keyboard illuminating apparatus, minimize the luminance difference that causes according to the distance between light source and the mark part, and come to illuminate mark part integral body equably with soft light by more compactly spreading the light that shines mark part from light guide sheet, thereby twinkling phenomenon and the profile tint that can minimize mark part are dyed phenomenon.
(means of dealing with problems)
In order to reach the utility model of purpose as mentioned above, relate to keyboard illuminating apparatus, it is characterized in that comprise: keyboard is formed with the mark part for the function key operation; Light source is arranged at the bottom in the described keyboard, is used for the mark part irradiates light to keyboard; And light guide sheet, be arranged at and be used between the mark part of described keyboard and the light source to mark part guiding light, it is formed with for the concavo-convex reflection graphic patterns that light is reflected to mark part on the bottom surface of light source side, at the shadow shield that is provided between described keyboard and the light guide sheet or between described light guide sheet and the light source blocking from the light of light source irradiation, be formed with a plurality of through holes on the described shadow shield, be used for to regulate according to and the distance of light source to the light of keyboard side irradiation.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, described a plurality of through holes are to settle according to the outline line that is formed at the mark part of described keyboard.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, the size of described a plurality of through holes forms, from becoming big nearby gradually to the distant place from described light source.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, the arrangement of described a plurality of through holes forms at interval, from narrowing down gradually to the distant place nearby from described light source.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, described light guide sheet is formed with diffusion patterned above the keyboard side, with the concavo-convex formation of size less than 3 ~ 5 times of reflection graphic patterns.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, described shadow shield is that the thin opaque flakes that adheres to the synthetic resin material that forms through hole on the thin transparent film by the synthetic resin material constitutes.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, described shadow shield possesses the thin transparent film of synthetic resin material, and forms cover layer at this slide opaque dyestuff of coating or coating and constitute.
In addition, keyboard illuminating apparatus of the present utility model is characterized in that, described shadow shield is to form cover layer at the light guide sheet opaque dyestuff of coating or coating to the bottom surface of light source side or above the keyboard side to constitute.
(effect of utility model)
According to having the utility model of characteristic structure as mentioned above, between keyboard and the light guide sheet or between light guide sheet and the light source shadow shield is being set, and be formed on the shadow shield according to regulating to a plurality of through holes of the light of keyboard side irradiation with the distance of light source, can by described a plurality of through holes minimize according to the bright difference of the distance of light source, thereby can promote the illumination performance of keyboard by light guide sheet and shadow shield to the mark part integral body of keyboard with uniform brightness irradiation.
In addition, according to the utility model, be according to the settling of the outline line of the mark part of keyboard because be formed at a plurality of through holes of described shadow shield, therefore mark part integral body can be shone more effective and equably, thereby the illumination performance of keyboard can be promoted more.
In addition, according to the utility model, different at interval by the size or the arrangement that make a plurality of through holes that are formed at shadow shield, can minimize basis shines with the bright difference of the distance of light source, therefore can illuminate mark part integral body equably with the brightness of wanting, thereby can suppress the twinkling phenomenon of mark part and the profile tint of mark part is dyed phenomenon.
In addition, according to the utility model, light guide sheet above the keyboard side formation by concavo-convex constitute diffusion patterned finer and closely woven than reflection graphic patterns, can more compactly spread reflecting and spread to the light of mark part side by reflection graphic patterns, thereby can come to suppress more the twinkling phenomenon of mark part and the profile tint of mark part and dye phenomenon to illuminate mark part with the soft light of family.
Description of drawings
Fig. 1 is the front elevation of the main portion of mobile phone in the past.
Fig. 2 be show in the past mark part and the front elevation of the main portion of the mobile phone of the position of light source.
Fig. 3 is the A-A line cutaway view that shows Fig. 2 of keyboard illuminating apparatus in the past.
Fig. 4 is the cutaway view of expression keyboard illuminating apparatus of the present utility model.
Fig. 5 is the part expanded view of the light guide sheet in the expression keyboard illuminating apparatus of the present utility model.
Fig. 6 a to Fig. 6 e is the front elevation of shadow shield of various deformation example of the through hole of the shadow shield of expression in the keyboard illuminating apparatus of the present utility model.
Fig. 7 a to Fig. 7 d is the cutaway view of the variform of the shadow shield in the expression keyboard illuminating apparatus of the present utility model.
Fig. 8 a to Fig. 8 b is that expression is according to the cutaway view of other embodiment of keyboard illuminating apparatus of the present utility model.
(description of reference numerals)
12: keyboard 12a: mark part
13: light source 14: light guide sheet
14a: reflection graphic patterns 14b: diffusion patterned
15: shadow shield 15a: through hole
Embodiment
Below, with reference to accompanying drawing keyboard illuminating apparatus of the present utility model is described in detail.Fig. 4 is an expression preferred embodiment of the present utility model, as shown in the figure, keyboard illuminating apparatus of the present utility model, be used for illuminating the mark part 12a that is formed at keyboard 12, bottom in keyboard 12 is provided for the light source 13 of irradiates light, is provided between the mark part 12a of keyboard 12 and light source 13 light guide sheet 14 of light guiding to mark part 12a.
As shown in Figure 5, light guide sheet 14, on the bottom surface of light source 13 sides, be formed with for to the catoptrical concavo-convex reflection graphic patterns 14a of mark part 12a, above keyboard 12 sides, be formed with diffusion patterned 14b, with 3 ~ 5 times the concavo-convex formation of size less than reflection graphic patterns 14a.
In addition, be provided with shadow shield 15 between described light guide sheet 14 and the light source 13, the light of blocking-up from light source 13 irradiations to light guide sheet 14.Be formed with a plurality of through hole 15a on the shadow shield 15, the light that comes basis and the distance adjustment of light source 13 to shine to keyboard 12 sides, a plurality of through hole 15a settle according to the outline line of mark part 12a.
As mentioned above, be formed at a plurality of through hole 15a of shadow shield 15, make size and settle the interval different according to the distance difference with light source 13, shine to light guide sheet 14 thereby can minimize the bright difference that causes according to the distance with light source 13.
For example, shown in Fig. 6 a, the size of a plurality of through hole 15a forms, from becoming big nearby gradually to the distant place from described light source 13.At this moment, the zone of mark part 12a close to the light source 13 can be reduced the light of irradiation by the less through hole 15a of size, and the zone of the mark part 12a away from the light source 13 can be expanded light by the big relatively through hole 15a of size and minimize the bright difference that causes according to the distance between mark part 12a and the light source 13.Therefore, can illuminate mark part 12a integral body with uniform light.
In addition, shown in Fig. 6 b, the arrangement of a plurality of through hole 15a forms at interval, from narrowing down gradually to the distant place nearby from described light source.At this moment, light is reduced in the zone of mark part 12a close to the light source 13 because the quantity of through hole 15a is few, the zone of mark part 12a away from the light source 13 increases irradiation because the quantity of through hole 15a is more relatively light minimizes the bright difference that causes according to the distance between mark part 12a and the light source 13, thereby can illuminate mark part 12a integral body with uniform light.
In addition, shown in Fig. 6 c to Fig. 6 e, a plurality of through hole 15a can adopt simultaneously its size to be formed difference and will settle the interval to form difference, and the shape of through hole 15a also can be straight quadrangle.
In addition, shown in Fig. 7 c and Fig. 7 d, also can directly described cover layer 35-2 be formed at light guide sheet 14 to the bottom surface of light source 13 sides or above keyboard 12 sides.
Below, the effect of the present utility model that constitutes with structure is as mentioned above described.As shown in Figure 4, the light from light source 13 irradiations can shine to light guide sheet 14 by being arranged at the through hole 15a of the shadow shield 15 between light guide sheet 14 and the light source 13.
Described through hole 15a settles according to the outline line of mark part 12a, thereby can be effectively and illuminate mark part 12a integral body equably.
At this moment, shown in Fig. 6 a, be formed at the size of a plurality of through hole 15a of shadow shield 15, from light source 13 form nearby little, from light source 13 form relatively at a distance big the time, irradiation can be reduced to the light of the light guide sheet 14 in the zone close to light source 13, and irradiation can be increased to the light of the light guide sheet 14 in the zone away from light source 13.Therefore, can minimize the bright difference that causes according to the distance with light source 13, with illumination directive light guide sheet 14.
In addition, shown in Fig. 6 b, the arrangement of through hole 15a at interval, from light source form nearby narrow, from light source form at a distance wide the time, can reduce irradiation to the light of the light guide sheet 14 in the zone close to light source 13, and can increase irradiation to the light of the light guide sheet 14 in the zone away from light source 13.Therefore, can minimize the bright difference that causes according to the distance with light source 13, with illumination directive light guide sheet 14.
Afterwards, can spread to keyboard 12 sides the time to the reflection graphic patterns 14a reflection that the light of light guide sheet 14 irradiation can be by being formed at the bottom surface, thereby light can be shone equably to mark part 12a, can illuminate mark part 12a with uniform brightness thus.
In addition, by being formed at the top diffusion patterned 14b of light guide sheet 14, can more compactly spread to shine the 12a to sign portion with reflecting and spread to the light of keyboard 12 sides by reflection graphic patterns 14a, therefore the mark part 12a integral body that can shine keyboard 12 with softer light equably.
Fig. 8 a and Fig. 8 b represent other embodiment according to keyboard illuminating apparatus of the present utility model, shown in Fig. 8 a, can also possess second light guide sheet 24 in the bottom of shadow shield 15, shown in Fig. 8 b, also shadow shield 15 can be possessed in light guide sheet 14 to keyboard 12 sides above.
More than Shuo Ming embodiment only is explanation preferred embodiment of the present utility model, scope of the present utility model is not limited thereto, the practitioner of this area can carry out numerous variations, distortion or replacement in technical thought of the present utility model and technical scope, and these embodiment also should be understood to belong in the scope of the present utility model.
Claims (8)
1. a keyboard illuminating apparatus is characterized in that, comprising: keyboard is formed with the mark part for the function key operation; Light source is arranged at the bottom in the described keyboard, is used for the mark part irradiates light to keyboard; And light guide sheet, being arranged at and being used between the mark part of described keyboard and the light source to mark part guiding light, it is formed with on the bottom surface of light source side for the concavo-convex reflection graphic patterns of light reflection to mark part,
Being provided between described keyboard and the light guide sheet or between described light guide sheet and the light source blocking from the shadow shield of the light of light source irradiation, be formed with a plurality of through holes on the described shadow shield, be used for regulating according to and the distance of light source to the light of keyboard side irradiation.
2. keyboard illuminating apparatus according to claim 1 is characterized in that,
Being formed at a plurality of through holes of described shadow shield, is to settle according to the outline line that is formed at the mark part of described keyboard.
3. keyboard illuminating apparatus according to claim 2 is characterized in that,
The size that is formed at a plurality of through holes of described shadow shield forms, from becoming big nearby gradually to the distant place from described light source.
4. keyboard illuminating apparatus according to claim 2 is characterized in that,
The arrangement that is formed at described shadow shield forms at interval, from narrowing down gradually to the distant place nearby from described light source.
5. according to any described keyboard illuminating apparatus in the claim 1 to 4, it is characterized in that described light guide sheet is formed with diffusion patterned above the keyboard side, with the concavo-convex formation of size less than 3 ~ 5 times of reflection graphic patterns.
6. according to any described keyboard illuminating apparatus in the claim 1 to 4, it is characterized in that described shadow shield is that the thin opaque flakes that adheres to the synthetic resin material that forms through hole on the thin transparent film by the synthetic resin material constitutes.
7. according to any described keyboard illuminating apparatus in the claim 1 to 4, it is characterized in that described shadow shield possesses the thin transparent film of synthetic resin material, and form cover layer at this slide opaque dyestuff of coating or coating and constitute.
8. according to any described keyboard illuminating apparatus in the claim 1 to 4, it is characterized in that described shadow shield is to form cover layer at the light guide sheet opaque dyestuff of coating or coating to the bottom surface of light source side or above the keyboard side to constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066958 CN203179768U (en) | 2013-02-05 | 2013-02-05 | Keyboard lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066958 CN203179768U (en) | 2013-02-05 | 2013-02-05 | Keyboard lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179768U true CN203179768U (en) | 2013-09-04 |
Family
ID=49076431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066958 Expired - Fee Related CN203179768U (en) | 2013-02-05 | 2013-02-05 | Keyboard lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179768U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320519A (en) * | 2014-09-30 | 2015-01-28 | 惠州Tcl移动通信有限公司 | Luminescence structure assembly for mobile terminal, and mobile terminal |
| CN104658776A (en) * | 2013-11-20 | 2015-05-27 | 得英特株式会社 | Wave guide structure for key module of mobile device and the forming method thereof |
| CN107768170A (en) * | 2016-08-19 | 2018-03-06 | 致伸科技股份有限公司 | Illuminated keyboard |
| CN109148196A (en) * | 2018-08-24 | 2019-01-04 | 惠州Tcl移动通信有限公司 | A kind of key device |
| WO2023092924A1 (en) * | 2021-11-26 | 2023-06-01 | 深圳市烨光璇电子科技有限公司 | Keyboard light guide film and light-emitting keyboard |
-
2013
- 2013-02-05 CN CN 201320066958 patent/CN203179768U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658776A (en) * | 2013-11-20 | 2015-05-27 | 得英特株式会社 | Wave guide structure for key module of mobile device and the forming method thereof |
| CN104320519A (en) * | 2014-09-30 | 2015-01-28 | 惠州Tcl移动通信有限公司 | Luminescence structure assembly for mobile terminal, and mobile terminal |
| CN107768170A (en) * | 2016-08-19 | 2018-03-06 | 致伸科技股份有限公司 | Illuminated keyboard |
| CN109148196A (en) * | 2018-08-24 | 2019-01-04 | 惠州Tcl移动通信有限公司 | A kind of key device |
| CN109148196B (en) * | 2018-08-24 | 2021-01-08 | 惠州Tcl移动通信有限公司 | Key device |
| WO2023092924A1 (en) * | 2021-11-26 | 2023-06-01 | 深圳市烨光璇电子科技有限公司 | Keyboard light guide film and light-emitting keyboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140205 |