CN107845521B - Electronic equipment and key lamp - Google Patents
Electronic equipment and key lamp Download PDFInfo
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- CN107845521B CN107845521B CN201711211213.9A CN201711211213A CN107845521B CN 107845521 B CN107845521 B CN 107845521B CN 201711211213 A CN201711211213 A CN 201711211213A CN 107845521 B CN107845521 B CN 107845521B
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- light
- light guide
- emitting module
- guide layer
- guide column
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- 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
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- Push-Button Switches (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a key lamp, which comprises a light-emitting module, a light guide layer and a light collecting piece, wherein the light guide layer is used for guiding light rays projected by the light-emitting module to a key body of the key lamp, the light-emitting module is arranged on one side of the light guide layer, the key lamp also comprises the light collecting piece, the light collecting piece is arranged on the light inlet side of the light guide layer and is used for collecting the light rays on the light guide layer, and the light projection direction of the light-emitting module is parallel to the light guide layer. The invention also discloses an electronic device. Above-mentioned scheme can solve the light utilization ratio of present electronic equipment's button lamp and lower and occupy the problem in vertical space.
Description
Technical Field
The invention relates to the technical field of key lamp design, in particular to electronic equipment and a key lamp.
Background
The key lamp is an important component of the electronic equipment, and the light projected by the key lamp can prompt the specific position of the key of the user, so that the operation of the user is facilitated. Meanwhile, the key lamp can play a role in decorating the electronic equipment, and particularly in an environment with dark light, the key lamp can enable the electronic equipment to be more attractive.
At present, key lamps of electronic equipment mainly have a direct type light-emitting structure and a side light-emitting structure. Referring to fig. 1, fig. 1 is a schematic view of a direct-type light emitting structure, in which a light emitting module 110 is located below a light guiding layer 120, and this structure has a large demand on a longitudinal space of an electronic device, which increases the thickness of the electronic device. However, the current electronic device is developed in a light and thin direction, and obviously, the direct type light emitting structure cannot adapt to the development direction of the current electronic device. Referring to fig. 2, fig. 2 is a schematic view of a side-lighting structure, which is a structure commonly used in a conventional key lamp, and a light-emitting module 210 in the side-lighting structure is located on one side of a light-guiding layer 220, which increases the lateral size of an electronic device. The thickness of the light guide layer 220 in the side-emitting structure is limited due to cost and space limitations. The light emitting module 210 has a larger size due to the requirement of the electronic device for light emitting power. At present, the light emitting width of the light emitting module 210 is larger than the thickness of the light guiding layer 220, so that only a small portion of the light emitting module 210 enters the light guiding layer 220, and most of the light is scattered at other parts of the electronic device and is not utilized. In order to satisfy the requirement for the brightness of the key lamp, the electronic device inevitably needs to increase the power consumption of the light emitting module 210, which not only causes the waste of the battery resource of the electronic device, but also causes the local temperature rise of the electronic device, and further affects the service life of the electronic device. Therefore, the existing structure can not meet the problems of light utilization rate and vertical space occupation.
Disclosure of Invention
The invention provides a key lamp, which aims to solve the problems that the light utilization rate of the existing key lamp of electronic equipment is low and the existing key lamp occupies a longitudinal space.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a key lamp, including luminous module and be used for with the light direction that luminous module throws the leaded light layer on the button body of key lamp, luminous module sets up one side on leaded light layer, still include the light concentration piece according to the key lamp, the light concentration piece sets up the side of advancing on leaded light layer, and be used for with light collect in on the leaded light layer, luminous module's light throw the direction with the leaded light layer is parallel.
Preferably, in the key lamp, the light collecting member is disposed on a light entrance side of the light guide layer, and has a reflection slope capable of reflecting the light to the light guide layer.
Preferably, in the key lamp, the light collecting member is a wedge, a wedge space is formed between the wedge and the light entrance surface of the light guide layer, the wider end of the wedge space is located between the narrower end of the wedge space and the light emitting module, and the surface of the wedge opposite to the light guide layer is the reflection inclined surface.
Preferably, in the key lamp, the light collecting member is a light guide pillar, a light inlet end of the light guide pillar is opposite to a light outlet end of the light emitting module, and the light outlet end of the light guide pillar is opposite to an edge of one side of the light guide layer.
Preferably, in the key lamp, the light emitting module and the light guide layer are located in the same plane.
Preferably, in the key lamp, the light guide pillar is a tapered light guide pillar, the end with the larger cross-sectional area of the tapered light guide pillar is arranged opposite to the light emitting end of the light emitting module, and the end with the smaller cross-sectional area of the light guide pillar is arranged opposite to the edge of one side of the light guide layer; the shape of the longitudinal section of the tapered light guide column passing through the axis of the tapered light guide column is trapezoidal.
Preferably, in the above-mentioned key lamp, send optical module with leaded light layer dislocation distribution, the leaded light post is crooked leaded light post, the leaded light post is including the section of admitting light, linking section and the section of giving out light, the one end of the section of admitting light with it is relative to send optical module, the other end with the one end of linking the section links up, the other end of linking the section with the one end of the section of giving out light links to each other, the other end of the section of giving out light with a side edge on leaded light layer is arranged relatively, the section of giving out light with it is in respectively to admit light the both sides of section extend towards the direction of keeping away from each other.
Preferably, in the key lamp, the light emitting module is an LED lamp.
An electronic device comprising a key light as described in any of the above.
Preferably, in the electronic device, the electronic device is a mobile phone, a tablet computer or a television.
The invention adopts at least one technical scheme which can achieve the following beneficial effects:
in the key lamp disclosed by the invention, the light projection direction of the light-emitting module is parallel to the light guide layer, and the light-collecting piece is additionally arranged, so that the light projected by the light-emitting module is collected into the light guide layer as much as possible through the light-collecting piece, and further, the light projected by the light-emitting module can enter the light guide layer more, and finally, the brightness of the key lamp can be improved, and the purpose of improving the light utilization rate of the light-emitting module is achieved. Meanwhile, the light guide utilization rate of the light emitting module is improved, so that the power of the light emitting module does not need to be additionally increased for the electronic equipment, and the waste of battery resources of the electronic equipment and the local temperature rise of the electronic equipment cannot be caused. Meanwhile, the light projection direction of the light emitting module is parallel to the light guide layer, so that the longitudinal space can be reduced, and the light and thin development requirement can be met.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a direct-type key lamp in the prior art;
fig. 2 is a schematic structural diagram of a key lamp with a side-emitting structure according to the prior art;
fig. 3 is a schematic structural diagram of a key lamp according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another key lamp disclosed in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of another key lamp according to an embodiment of the present invention.
Description of reference numerals:
110-a light emitting module, 120-a light guide layer;
210-a light emitting module, 220-a light guiding layer;
310-light emitting module, 320-light guiding layer, 330-wedge;
410-a light emitting module, 420-a light guide layer and 430-a conical light guide column;
510-a light emitting module, 520-a light guide layer, 530-a curved light guide column, 531-a light inlet section, 532-a connection section and 533-a light outlet section.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
The embodiment of the invention discloses a key lamp, which comprises a light-emitting module and a light guide layer, wherein the light guide layer is used for guiding light rays projected by the light-emitting module to a key body of the key lamp.
The key lamp further comprises a light collecting piece, wherein the light collecting piece is arranged on the light inlet side of the light guide layer and is used for collecting light rays in the light guide layer.
According to the key lamp disclosed by the embodiment of the invention, the light collecting piece is additionally arranged, and the light rays projected by the light emitting module are collected into the light guide layer as much as possible through the light collecting piece, so that the light rays projected by the light emitting module can enter the light guide layer more, the brightness of the key lamp can be finally improved, and the purpose of improving the light utilization rate of the light emitting module is achieved. Meanwhile, the light utilization rate of the light-emitting module is improved, so that the power of the light-emitting module is not required to be additionally increased for the electronic equipment, and the waste of battery resources of the electronic equipment and the local temperature rise of the electronic equipment cannot be caused. Meanwhile, the light projection direction of the light emitting module is parallel to the light guide layer, so that the longitudinal space can be reduced, and the light and thin development requirement can be met. Therefore, the key lamp disclosed by the embodiment of the invention can prolong the service life of the electronic equipment and meet the requirement of longitudinal space.
The structure and working process of the key lamp of the light collecting member with several specific structures are briefly described below.
In the invention, the light collecting piece is arranged at the light inlet side of the light guide layer and is provided with the reflecting inclined plane capable of reflecting light rays into the light guide layer, and the reflecting inclined plane can reflect the light rays which cannot be projected into the light guide layer. Referring to fig. 3, fig. 3 is a schematic structural diagram of a key lamp. In the key lamp shown in fig. 3, the light collecting member is a wedge 330, a wedge space is formed between the wedge 330 and the light incident surface of the light guiding layer 320, the wider end of the wedge space is located between the narrower end of the wedge space and the light emitting module 310, and the surface of the wedge 330 opposite to the light guiding layer 320 is a reflection inclined surface. The light projection direction of the light emitting module 310 is parallel to the light guide layer 320, and part of the light emitted by the light emitting module 310 is directly projected into the light guide layer 320, and part of the light is emitted to the emitting inclined surface of the wedge 330 and is reflected into the light guide layer 320 through the emitting inclined surface of the wedge 330, so that the part of the light is collected to the light guide layer 320 to be utilized.
The structure having the reflective slope is not limited to the wedge 330, and may be other structures having the reflective slope. The invention is not limited in this regard.
In the invention, the laser part can be a light guide column, the light inlet end of the light guide column is arranged opposite to the light outlet end of the light emitting module, and the light outlet end of the light guide column is arranged opposite to one side edge of the light guide layer. After light emitted by the light emitting module enters the light guide column, the light is guided by the light guide column and collected to the light guide layer.
Referring to fig. 4, in an embodiment, the light emitting module 410 and the light guiding layer 420 are located in the same plane. In this case, the light guide pillar does not need to be bent. Specifically, the light guide column may be a tapered light guide column 430, specifically, the end of the tapered light guide column 430 with the larger cross-sectional area is arranged opposite to the light emitting end of the light emitting module 410, and the end of the tapered light guide column 430 with the smaller cross-sectional area is arranged opposite to the edge of one side of the light guide layer 420. Specifically, the tapered light guide 430 may have a trapezoidal shape in a longitudinal section passing through the axis thereof. In a preferred embodiment, the trapezoid is an asymmetrically shaped trapezoid, such as a right angle trapezoid, with respect to the axis of the tapered light pipe 430, as shown in FIG. 4. The asymmetric shape facilitates the light rays to be converged and then more incident into the light guide layer 420, thereby improving the light utilization rate.
In order to make the light emitted from the light emitting module 410 enter the tapered light guiding pillar 430 as much as possible, preferably, the width of the end of the tapered light guiding pillar 430 with the larger cross-sectional area may be greater than the width of the light emitting end of the light emitting module 410. Preferably, the width of the end of the tapered light guide bar 430 with the smaller cross-sectional area may be greater than the width of the edge of the corresponding side of the light guide layer 420, so that more light is projected onto the light guide layer 420.
In the actual design process, because the layout in the electronic equipment has requirements or is influenced by other factors, in the key lamp of the electronic equipment, the light-emitting module and the light guide layer are not on the same plane. Referring to fig. 5, in one embodiment, the light emitting module 510 and the light guiding layer 520 are disposed in a staggered manner, in which case the light guiding column is a curved light guiding column 530, a light inlet end of the curved light guiding column 530 is disposed opposite to a light outlet end of the light emitting module 510, and a light outlet end of the curved light guiding column 530 is disposed opposite to the light guiding layer 520. The curved light guide 530 can flexibly adjust the distribution of the light emitting module 510 and the light guide layer 520.
Similarly, in order to further improve the light utilization rate, in a preferred embodiment, the width of the light inlet end of the curved light guide pillar 530 may be greater than the width of the light outlet end of the light emitting module 510, so that the light emitted by the light emitting module 510 is projected into the curved light guide pillar 530 as much as possible. The width of the light exit end of the curved light guide 530 may be greater than the width of the edge of the corresponding side of the light guide layer 520, so that more light is projected into the light guide layer 520.
Referring to fig. 5 again, the curved light guide pillar 530 may include a light incident section 531, a connection section 532, and a light emergent section 533, wherein one end of the light incident section 531 is opposite to the light emitting module 510, the other end of the light incident section is connected to one end of the connection section 532, the other end of the connection section 532 is connected to one end of the light emergent section 533, the other end of the light emergent section 533 is disposed opposite to one side edge of the light guide layer 520, and the light emergent section 533 and the light incident section 531 are respectively disposed on two sides of the connection section 532 and extend toward a direction away from each other. The asymmetric structure is advantageous for adjusting the position between the light emitting module 510 and the light guiding layer 520, and is also advantageous for arranging other components of the electronic device.
In the embodiment of the invention, the light-emitting module can be an LED lamp, and the LED lamp has the advantages of low power consumption, low heat productivity, environmental protection, long service life and the like, and can further prolong the service life of the key lamp.
Based on the key lamp disclosed by the embodiment of the invention, the invention further discloses electronic equipment, and the disclosed electronic equipment comprises the key lamp in any one of the above embodiments.
In the present invention, the electronic device may be an electronic device with keys, such as a mobile phone, a tablet computer, and a television, and the present invention does not limit the specific kind of the electronic device.
In this context, the features of the various preferred embodiments can be combined to form embodiments, all within the scope of the present disclosure, as long as they are not contradictory.
In the present specification, the respective preferred embodiments are only described with emphasis on differences from other preferred embodiments, and the respective preferred embodiments may be arbitrarily combined as long as they do not conflict with each other, and the embodiments formed by combining are also within the scope disclosed in the present specification, and in view of the brevity of the text, the embodiments formed by combining are not separately described herein.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A key lamp comprises a light-emitting module and a light guide layer, wherein the light guide layer is used for guiding light rays projected by the light-emitting module to a key body of the key lamp, and the light-emitting module is arranged on one side of the light guide layer;
the light collecting piece is a light guide column, the light inlet end of the light guide column is arranged opposite to the light outlet end of the light emitting module, and the light outlet end of the light guide column is arranged opposite to one side edge of the light guide layer;
the width of the light inlet end of the light guide column is larger than that of the light outlet end of the light emitting module;
the light-emitting module and the light guide layer are positioned in the same plane; the light guide column is a tapered light guide column, one end with a larger cross section area of the tapered light guide column is arranged opposite to the light outlet end of the light emitting module, one end with a smaller cross section area of the light guide column is arranged opposite to one side edge of the light guide layer, and the width of one end with a smaller cross section area of the light guide column is larger than that of one side edge of the light guide layer; the shape of the longitudinal section of the tapered light guide column passing through the axis of the tapered light guide column is an asymmetric trapezoid.
2. The key lamp of claim 1, wherein the light emitting module is an LED lamp.
3. A key lamp comprises a light-emitting module and a light guide layer, wherein the light guide layer is used for guiding light rays projected by the light-emitting module to a key body of the key lamp, and the light-emitting module is arranged on one side of the light guide layer;
the light collecting piece is a light guide column, the light inlet end of the light guide column is arranged opposite to the light outlet end of the light emitting module, and the light outlet end of the light guide column is arranged opposite to one side edge of the light guide layer;
the width of the light inlet end of the light guide column is greater than that of the light outlet end of the light emitting module, and the width of the light outlet end of the light guide column is greater than that of one side edge of the light guide layer;
the utility model discloses a light guide column, including light guide section, light emitting module, light guide layer, light guide column, light guide section, light guide layer, light guide section.
4. The key lamp of claim 3, wherein the light emitting module is an LED lamp.
5. Electronic device, characterized in that it comprises a key light according to any of claims 1-4.
6. The electronic device of claim 5, wherein the electronic device is a mobile phone, a tablet computer, or a television.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211213.9A CN107845521B (en) | 2017-11-27 | 2017-11-27 | Electronic equipment and key lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711211213.9A CN107845521B (en) | 2017-11-27 | 2017-11-27 | Electronic equipment and key lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107845521A CN107845521A (en) | 2018-03-27 |
| CN107845521B true CN107845521B (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711211213.9A Active CN107845521B (en) | 2017-11-27 | 2017-11-27 | Electronic equipment and key lamp |
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| CN (1) | CN107845521B (en) |
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| CN203630388U (en) * | 2013-12-25 | 2014-06-04 | 小米科技有限责任公司 | Light guide structure and mobile terminal |
| CN205881772U (en) * | 2016-07-29 | 2017-01-11 | 海能达通信股份有限公司 | Electron device and button backlight thereof |
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2017
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4080271B2 (en) * | 2002-08-01 | 2008-04-23 | シチズン電子株式会社 | Light guide sheet and key switch incorporating the same |
| CN1504975A (en) * | 2002-12-05 | 2004-06-16 | ���ǵ�����ʽ���� | Backlight assembly and liquid crystal display apparatus having the same |
| CN1917113A (en) * | 2005-08-19 | 2007-02-21 | 西铁城电子股份有限公司 | Sheet switch, sheet switch module and panel switch |
| CN101789324A (en) * | 2009-01-23 | 2010-07-28 | 宏达国际电子股份有限公司 | Hand-held electronic device and luminous keyboard thereof |
| CN101667084A (en) * | 2009-08-24 | 2010-03-10 | 友达光电股份有限公司 | Touch panel and touch display device provided with touch panel |
| CN201548942U (en) * | 2009-11-16 | 2010-08-11 | 精元电脑股份有限公司 | Touch control keyboard improving device |
| CN202600624U (en) * | 2012-04-18 | 2012-12-12 | 阿尔卑斯电气株式会社 | Covering film sheet, laminated sheet using the same and illumination device |
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| CN205881772U (en) * | 2016-07-29 | 2017-01-11 | 海能达通信股份有限公司 | Electron device and button backlight thereof |
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| Publication number | Publication date |
|---|---|
| CN107845521A (en) | 2018-03-27 |
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