CN202473691U - Light guide module used for key backlight - Google Patents
Light guide module used for key backlight Download PDFInfo
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- CN202473691U CN202473691U CN2011205410254U CN201120541025U CN202473691U CN 202473691 U CN202473691 U CN 202473691U CN 2011205410254 U CN2011205410254 U CN 2011205410254U CN 201120541025 U CN201120541025 U CN 201120541025U CN 202473691 U CN202473691 U CN 202473691U
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Abstract
The utility model discloses a light guide module used for key backlight. The light guide module used for the key backlight includes a key backlight unit including a light source and a key assembly; and a light guide film capable of changing a light emitting angle. The light guide film includes a light guide segment, a light emitting segment and a bending segment connecting the light guide segment and the light emitting segment. The light guide segment is in the front side of a light source. The light emitting segment is below the key assembly. Light emitted by the light source goes through the light guide segment, the bending segment and is emitted from the light emitting segment, thereby enabling the light emitting segment to emit light uniformly even when the light source and the key assembly are not on the same plane. Thus, the positions of the key assembly and the light source can be arranged freely according to requirements of a user, thereby eliminating restrictions of an inner structure of a cell phone.
Description
Technical field
The utility model relates to a kind of leaded light module that is used for key-press backlight.
Background technology
At present, general touch-control electronic product is mobile phone products especially, and a lot of situation are arranged; In order to guarantee the attractive in appearance neat of front; Touch key-press often will be arranged in the attractive in appearance and coordination of relevant position with the assurance machine according to the ID needs, and for the mobile phone internal structure, often there is barrier the inside of key position; Such as a lot of situation be key layout within the frame region of screen, this leaded light that will influence button designs.The design of traditional key-press leaded light: the one, FPC through a plurality of metal clipss and mainboard switching, is arranged in side-emitting on the FPC, realize the leaded light of key area through the plane light guiding film; The 2nd, through increasing plastic cement leaded light piece and reflective sheeting, be transferred to the key area to the light of light emitting source through the plane light guiding film and realize.It is thus clear that these two kinds of schemes, manufacturability is complicated, and material is many, the high deficiency of cost.Even some also guarantees the light guide effect of button through sacrificing outward appearance, and is inadvisable.And these two kinds of traditional design are limit by cost restriction and inner space very, and this is very big problem beyond doubt.
The utility model content
The utility model provides a kind of leaded light module that is used for key-press backlight, and it has overcome the existing deficiency of background technology.The technical scheme that is adopted that the utility model solves its technical problem is: a kind of leaded light module that is used for key-press backlight, and it comprises: a key-press backlight unit, said key-press backlight unit comprises a light source and a button assembly; And one can change rising angle light guiding film; Said light guiding film comprises that a leaded light section, a bright dipping section and connect the bending section of said leaded light section and bright dipping section; Said leaded light section is positioned at the front of said light source; Said bright dipping section is positioned at the below of said button assembly, and the light that said light source sends penetrates from the bright dipping section through leaded light section, bending section again.
Among one preferred embodiment: said bending section is a circular arc, and its central angle is the 80-110 degree.
Among one preferred embodiment: said bright dipping section is provided with a plurality of optically focused textured region.
Among one preferred embodiment: said light guiding film is made up of polyurethane, thermoplastic polyurethane or high transparent silicon rubber.
Among one preferred embodiment: said light source is a led light source, and said button assembly is the touch controlled key assembly.
Among one preferred embodiment: said light source is positioned at the back lower place of said button assembly, and said light guiding film is between said light source and button assembly.
The present technique scheme is compared with background technology, and it has following advantage:
1. the leaded light section is positioned at the front of light source, and the bright dipping section is positioned at the below of button assembly, and the light that light source sends penetrates from the bright dipping section through leaded light section, bending section again.Make the not also evenly bright dipping of bright dipping section when same plane of light source and button assembly, like this can be according to the design human needs, the position of arranged keys assembly and light source freely, and do not receive the restriction of mobile phone internal structure.
2. said bending section is a circular arc, and its central angle is the 80-110 degree.Penetrate from the bright dipping section more uniformly after the light process arc section transition that makes light source send.
3. bright dipping section is provided with a plurality of optically focused textured region, makes button assembly have better effect backlight.
4. light guiding film is made up of polyurethane, thermoplastic polyurethane or high transparent silicon rubber.Make the light guiding film quality soft, improve pressing touch.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 has illustrated a kind of overall schematic that is used for the leaded light module of key-press backlight of a preferred embodiment.
Fig. 2 has illustrated a kind of right view that is used for the leaded light module of key-press backlight of a preferred embodiment.
Fig. 3 has illustrated a kind of local enlarged diagram that is used for the leaded light module of key-press backlight of a preferred embodiment.
Embodiment
Please refer to Fig. 1 to Fig. 3, an a kind of preferred embodiment that is used for the leaded light module of key-press backlight, described a kind of leaded light module that is used for key-press backlight, it comprises: a key-press backlight unit, a light guiding film 100.
Said key-press backlight unit comprises a light source 200 and a button assembly 300.
Said light guiding film 100 comprises that a leaded light section 110, a bright dipping section 120 and connect the bending section 130 of said leaded light section 110 and bright dipping section 120; Said leaded light section 110 is positioned at the front of said light source 200; Said bright dipping section 120 is positioned at the below of said button assembly 300, and the light that said light source 200 sends penetrates from bright dipping section 120 through leaded light section 110, bending section 130 again.Make light source 200 and not also evenly bright dipping of bright dipping section 120 when same plane of button assembly 300, like this can be according to the design human needs, the position of arranged keys assembly 300 and light source 200 freely, and do not receive the restriction of mobile phone internal structure.In the present embodiment, said bending section 130 is a circular arc, and its central angle is the 80-110 degree, penetrates from bright dipping section 120 more uniformly after the light process arc section transition that makes light source 200 send.Said light source 200 is a led light source, and said button assembly 300 is the touch controlled key assembly, and said light source 200 is positioned at the back lower place of said button assembly 300, and said light guiding film 100 is between said light source 200 and button assembly 300.The light direct beam of led light source is to the leaded light section 110 of light guiding film 100; Perhaps direct projection is on the cambered surface of bending section 130; Let direction of light change into angled with it sidelight from just luminous; Thereby guarantee bright dipping section 120 uniformly light-emittings of button assembly 300 back lower places, be provided with a plurality of optically focused textured region in said bright dipping section 120 simultaneously, guarantee the effect good backlight of button assembly 300.
In the present embodiment, said light guiding film 100 is made up of polyurethane, thermoplastic polyurethane or high transparent silicon rubber.Make light guiding film 100 quality soft, improve pressing touch.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (6)
1. leaded light module that is used for key-press backlight, it is characterized in that: it comprises:
One key-press backlight unit, said key-press backlight unit comprises a light source and a button assembly; And
One can change the light guiding film of rising angle; Said light guiding film comprises that a leaded light section, a bright dipping section and connect the bending section of said leaded light section and bright dipping section; Said leaded light section is positioned at the front of said light source; Said bright dipping section is positioned at the below of said button assembly, and the light that said light source sends penetrates from the bright dipping section through leaded light section, bending section again.
2. a kind of leaded light module that is used for key-press backlight according to claim 1, it is characterized in that: said bending section is a circular arc, its central angle is the 80-110 degree.
3. a kind of leaded light module that is used for key-press backlight according to claim 1, it is characterized in that: said bright dipping section is provided with a plurality of optically focused textured region.
4. a kind of leaded light module that is used for key-press backlight according to claim 1 is characterized in that: said light guiding film is made up of polyurethane, thermoplastic polyurethane or high transparent silicon rubber.
5. a kind of leaded light module that is used for key-press backlight according to claim 1, it is characterized in that: said light source is a led light source, said button assembly is the touch controlled key assembly.
6. a kind of leaded light module that is used for key-press backlight according to claim 1, it is characterized in that: said light source is positioned at the back lower place of said button assembly, and said light guiding film is between said light source and button assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205410254U CN202473691U (en) | 2011-12-21 | 2011-12-21 | Light guide module used for key backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205410254U CN202473691U (en) | 2011-12-21 | 2011-12-21 | Light guide module used for key backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202473691U true CN202473691U (en) | 2012-10-03 |
Family
ID=46921834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205410254U Expired - Fee Related CN202473691U (en) | 2011-12-21 | 2011-12-21 | Light guide module used for key backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202473691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI506494B (en) * | 2013-04-30 | 2015-11-01 | Interface Optoelectronic Shenzhen Co Ltd | Electronic device |
| CN105299530A (en) * | 2015-09-30 | 2016-02-03 | 上海摩软通讯技术有限公司 | Light source module and electronic equipment |
-
2011
- 2011-12-21 CN CN2011205410254U patent/CN202473691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI506494B (en) * | 2013-04-30 | 2015-11-01 | Interface Optoelectronic Shenzhen Co Ltd | Electronic device |
| CN105299530A (en) * | 2015-09-30 | 2016-02-03 | 上海摩软通讯技术有限公司 | Light source module and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |