CN101241205A - Light guide board light-guiding method and key structure using the light guide board - Google Patents
Light guide board light-guiding method and key structure using the light guide board Download PDFInfo
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- CN101241205A CN101241205A CNA200710000452XA CN200710000452A CN101241205A CN 101241205 A CN101241205 A CN 101241205A CN A200710000452X A CNA200710000452X A CN A200710000452XA CN 200710000452 A CN200710000452 A CN 200710000452A CN 101241205 A CN101241205 A CN 101241205A
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- light
- light guide
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- guide section
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Abstract
A push key structure comprises a circuit, a first elastic layer, a second elastic layer, a light shied layer, a push key set, an illuminating assembly and a light shied slice. A light guide plate provided with a chain-shaped light shied structure composed of a plurality of through holes staggered adjacently is disposed on the second elastic layer. The light guide plate is divided into two light guiding regions by the light shied structure. After light of different color at the outside portion of the two light guiding regions is guided into the light guide plate, when light of each light guiding region passes through the light shied structure, brightness of light passing through the through holes are decayed, and can't reach another light guiding region to avoid problem that light of two light guiding regions interferes with each other or blends.
Description
Technical field
The present invention relates to a kind of button, the light-guiding method and the structure of the inner backlight of particularly a kind of button.
Background technology
Backlight module on being used in LCD, signboard, billboard widely, even also using backlight module widely as the electronic product of mobile phone, personal digital aid (PDA).Because backlight module is installed in button, thereby make the user at night or do not have under the situation of light source, still operation push-button successfully.
Traditional button is in the press-key structure internal configurations light guide plate to be arranged, and disposes light emitting diode at light guide plate periphery or bottom.When using electronic product, described light emitting diode is lighted immediately, and light is imported light guide plate inside, this moment light guide plate with the light guide arrangement on the button of light guide plate top, make keytop present translucent effect, allow the user can clearly see literal, numeral or symbol on each keytop.
Multi-color LED is manufactured in recent years come out after, it also is widely used on the button of electronic product.Heterogeneous light light emitting diode produces different color light, so that keytop or some button group present the colored backlight effect of different color light under the control of the circuit of electronic product.Because light guide plate has only one deck, if therefore have a plurality of heterogeneous light light emitting diodes to be lighted simultaneously, and light is imported light guide plate inside simultaneously, then make easily and light phase mutual interference or generation mixed light each other cause the shown coloured light of keytop can not reach the coloured light of original setting.Therefore, in order to solve light phase mutual interference or problem such as mixed light each other, therefore utilize the patch attaching of black or shading place that printing ink is coated light guide plate, after a plurality of polychromatic lights are imported into light guide plate inside, make keytop or some button group present the effect backlight of different color light, allow light can not produce problems such as interference or mixed light each other.But, when adopting this shading mode,, then will cause light leakage phenomena to take place if processing attaches or coating is handled desirablely not to the utmost, and the time-consuming and preface of taking a lot of work that also causes light guide plate to make.
Summary of the invention
Therefore, the present invention makes light-shielding structure on light guide plate, utilizes described light-shielding structure to decay by the light luminance of light-shielding structure, produces problems such as phase mutual interference or mixed light each other to avoid light.
For achieving the above object, be manufactured with the light-shielding structure of chain form on the light guide plate of the present invention, described light-shielding structure is to be arranged in the adjacent mode that staggers by a plurality of perforation to form, and described light-shielding structure is separated into two light guide zone with described light guide plate, after the light of the different color light of two light guide zone outsides imports light guide plate, the light of arbitrary light guide zone is during through described light-shielding structure, with the light luminance decay that makes by described perforation, allow light can't arrive another light guide zone, thereby avoid the light of two light guide zone to produce problems such as phase mutual interference or mixed light.
Description of drawings
Fig. 1 is the schematic flow sheet of the light-guiding method of light guide plate of the present invention;
Fig. 2 is the stereoscopic synoptic diagram of light guide plate of the present invention;
Fig. 3 is the local enlarged diagram of Fig. 2;
Fig. 4 is the shading synoptic diagram of light guide plate of the present invention;
Fig. 5 is the schematic top plan view of light guide plate of the present invention;
Fig. 6 is the schematic side view of light guide plate of the present invention;
Fig. 7 is the synoptic diagram that light guide plate of the present invention and press-key structure are used;
Fig. 8 is the schematic side view of Fig. 7;
Fig. 9 is the optical path synoptic diagram of Fig. 7;
Figure 10 is the schematic side view of another embodiment of the present invention;
Figure 11 is the synoptic diagram of light guide plate of the present invention when being used on the mobile phone; And
Figure 12 is the synoptic diagram of press-key structure of the present invention when being used on the automobile audio panel.
In the accompanying drawing, the list of parts of each label representative is as follows:
Frame shaped light guide section 13 strip light guide sections 14
Leaded light microstructure 15 light-shielding structures 16
The perforation 161,161a light guide zone 17,17 '
Light 18 breach 19,19a, 19b
Refraction part 191,191a, 191b circuit board 2
First elastic layer, 3 thin shrapnels 31
Surface 611,311 adhesion layers 62
Embodiment
Relevant technology contents of the present invention and detailed description, existing conjunction with figs. is carried out following explanation.
Fig. 1 is the schematic flow sheet of the light-guiding method of light guide plate of the present invention.As shown in the figure, at first,, prepare light guide plate, be formed with block shape light guide section, frame shaped light guide section and strip light guide section on this light guide plate in step 100.
Fig. 2 is the stereoscopic synoptic diagram of light guide plate of the present invention, and Fig. 3 is the local enlarged diagram of Fig. 2.As shown in the figure, light guide plate 1 is the carrier of being made by the PC film of clear, colorless or TPU film 11, has block shape light guide section 12, frame shaped light guide section 13 and strip light guide section 14 on the carrier 11.Block shape light guide section 12 is directed to light on the corresponding one key, and frame shaped light guide section 13 is directed to light in the specific button group, and strip light guide section 14 is directed at light on the lateral margin of carrier 11.
The light guide section of block shape light guide section 12, frame shaped light guide section 13 and strip light guide section 14 is made up of a plurality of leaded light microstructures 15, after externally light imports carrier 11 inside, leaded light microstructure 15 changes the path of passing through of light, light can be concentrated be projeced on the button.
Simultaneously please together with reference to Fig. 4, at block shape light guide section 12, be provided with the light-shielding structure 16 of chain form between frame shaped light guide section 13 and the strip light guide section 14, it is separated into two light guide zone 17 with carrier 11,17 ', light-shielding structure 16 is to be arranged in the adjacent mode that staggers by a plurality of perforation 161 to form, after light guide zone 17 or 17 ' with light from outside 18 imports carriers 11, when light 18 passes through the perforation 161 of light-shielding structures 16, perforation 161 reflects light 18 on adjacent perforation 161a, make light 18 decay and can not pass light-shielding structure 16, therefore in light guide zone 17 and 17 ' when importing light 18 respectively, neitherly can produce problems such as phase mutual interference or mixed light.
Again together with reference to Fig. 5, a side and place, two angles at the carrier 11 of light guide plate 1 all are provided with breach 19,19a, 19b, have stepped light refraction portion 191,191a, 191b in breach 19,19a, the 19b, dispose luminescence component 7 on breach 19,19a, the 19b, after the light 18 that luminescence component 7 is produced when being lighted is imported by refraction part 191,191a, 191b, allow light source can be diffused into quickly and evenly the light guide zone 17,17 of carrier 11 ' on.
Again together with reference to Fig. 6, the leaded light particle 15 semicircular in shape shrinkage pool shapes on the light guide plate 1.After extraneous light 18 was imported into carrier 11 inside of light guide plate 1, when light 18 was passed through to leaded light microstructure 15, the little structure 15 of leaded light can change the path of passing through of light 18, thereby light 18 can be projeced on the button in the concentrated area.
Fig. 7 is the synoptic diagram that light guide plate of the present invention and press-key structure are used.As shown in the figure: disclosed press-key structure comprises in this figure: circuit board 2, first elastic layer 3, second elastic layer 4, light shield layer 5, button group 6, luminescence component 7 and anti-dazzling screen 8.
First elastic layer 3 is disposed on the circuit board 2, have the thin shrapnel of making by rigid PC material 31 on it and be covered on the thin shrapnel 31 and with the metal clips 32 of circuit board 2 corresponding configurations, metal clips 32 is when being pressed distortion, just produce snap sound, thereby allow the user feel to have the effect of pressing keys 61.
Second elastic layer 4 is disposed on first elastic layer 3, and is made up of light guide plate 1 and elastic body 41.Elastic body 41 is made by soft PC material, and itself and light guide plate 1 combine by the hot pressing technology, and forms a plurality of convex bodys 42 on elastic body 41, convex body 42 corresponding sheet metal 32 configurations.
Fig. 8 is the schematic side view of Fig. 7, and Fig. 9 is the optical path synoptic diagram of Fig. 7.As shown in the figure, after the light 18 that the illuminating part 72 of luminescence component 7 is produced is entered by light guide plate 1, when light 18 process leaded light microstructures 15, leaded light microstructure 15 is with upwards projection of light 18, again through the hollow hole 51 of light shield layer 5 and light 18 can be projeced in the button group 6, allow the surface 611 of each button 61 all have translucent effect, make numeral, literal or the symbol on the surface 611 of button 61 can know demonstration.
Simultaneously, after button 61 is pressed by external force, the convex body 42 of second elastic layer 4 is pressed on the surface 311 of the thin shrapnel 31 of first elastic layer 3, metal clips 32 distortion are pressed on circuit board 2, circuit board 2 just produces signal, in the process of pressing keys 61, metal clips 32 can produce the snap sound, allows the feel effect of pressing keys 61 of user.
Figure 10 is the schematic side view of another embodiment of the present invention.As shown in the figure, disclosed press-key structure is identical haply with the disclosed press-key structure of Fig. 8 with Fig. 7 among this figure, and difference is that the leaded light microstructure 15 on the light guide plate 1 is for protruding from the semicircle protruding grain on light guide plate 1 surface.After light 18 is imported by light guide plate 1, leaded light microstructure 15 is assembled upwards projection with light 18, again through the hollow hole 51 of light shield layer 5, light 18 can be projeced in the button group 6, allow the surface 611 of each button 61 all have translucent effect, make numeral, literal or the symbol on the surface 611 of button 61 can know demonstration.
Figure 11 is the synoptic diagram of light guide plate of the present invention when being used on the mobile phone.As shown in the figure, light guide plate 1 of the present invention is disposed at the press-key structure inside of mobile phone 9, when mobile phone 9 is used, after light guide plate 1 imports light, when light process light-shielding structure 16, decay takes place and can not pass light-shielding structure 16 in light, so light guide zone 17 and 17 ' pairing button 61 will present the effect backlight of different color light.
Suppose that the light that light guide zone 17 imports is redness, and the light of light guide zone 17 ' imported is for green, can clearly be seen that on the key panel of mobile phone 9 button 61 of light-shielding structure more than 16 presents redness, and the button 61 of light-shielding structure below 16 presents green.So, on mobile phone 9, make some button group produce particular color, when the user carries out some operation (as playing games), just can not push the wrong the situation of button.
Figure 12 is the synoptic diagram of press-key structure of the present invention when being used for the automobile audio panel.As shown in the figure, the panel of press-key structure of the present invention can also be installed on the automobile audio panel 10 except can be used for mobile phone, uses control cold air conditioner system, audio-video system and satellite navigation system etc.
The above is the preferred embodiments of the present invention only, is not so promptly limits claim of the present invention, and every other equivalence of being done in characteristic range of the present invention changes or modifies, and all should be included in the claim of the present invention.
Claims (37)
1. the light-guiding method of the inner backlight of a button comprises:
A), prepare light guide plate;
B), on described light guide plate, form light-shielding structure, described light-shielding structure is separated into two light guide zone with described light guide plate; And
C), after at least two light are imported respectively by described two light guide zone of described light guide plate, when described at least two light reach described light-shielding structure, the light that enters described light-shielding structure is attenuated, to such an extent as to can't pass described light-shielding structure, form the light of different colours on described two light guide zone respectively, described ray cast is on button.
2. the light-guiding method of the inner backlight of button as claimed in claim 1, wherein, the light guide plate in a step has carrier.
3. the light-guiding method of the inner backlight of button as claimed in claim 1, wherein, the light-shielding structure in a step is chain form.
4. the light-guiding method of the inner backlight of button as claimed in claim 3, wherein, the light-shielding structure of described chain form is made up of a plurality of perforation, and described a plurality of perforation are arranged in the adjacent mode that staggers.
5. the light-guiding method of the inner backlight of button as claimed in claim 1 wherein, has block shape light guide section, frame shaped light guide section and strip light guide section on the described carrier of the light guide plate in a step.
6. the light-guiding method of the inner backlight of button as claimed in claim 5, wherein, described light guide section is made up of a plurality of leaded light microstructures.
7. the light-guiding method of the inner backlight of button as claimed in claim 6, wherein, described leaded light microstructure is semicircle shrinkage pool or the protruding grain that protrudes from described carrier surface.
8. the light conducting plate structure of a button inside, described light conducting plate structure has carrier, have block shape light guide section, frame shaped light guide section and strip light guide section on the described carrier, be provided with light-shielding structure between described block shape light guide section, described frame shaped light guide section and described strip light guide section, described light-shielding structure is separated into two light guide zone with described carrier.
9. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described carrier is made by the PC film or the TPU film of clear, colorless.
10. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described block shape light guide section is directed to light on the corresponding one key.
11. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described frame shaped light guide section is directed to light in the specific button group.
12. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described strip light guide section is directed to light on the lateral margin of described carrier.
13. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described light guide section is made up of a plurality of leaded light microstructures.
14. the light conducting plate structure of button as claimed in claim 13 inside, wherein, described leaded light microstructure is semicircle shrinkage pool or the protruding grain that protrudes from described carrier surface.
15. the light conducting plate structure of button as claimed in claim 8 inside, wherein, described light-shielding structure is chain form.
16. the light conducting plate structure of button as claimed in claim 15 inside, wherein, the light-shielding structure of described chain form is made up of a plurality of perforation, and described a plurality of perforation are arranged in the adjacent mode that staggers.
17. the light conducting plate structure of button as claimed in claim 8 inside, wherein, a side of described carrier and two jiaos of places all are provided with breach.
18. the light conducting plate structure of button as claimed in claim 17 inside wherein, has stepped light refraction portion in the described breach.
19. the light conducting plate structure of button as claimed in claim 17 inside wherein, disposes luminescence component on the described breach.
20. a press-key structure comprises:
Circuit board;
First elastic layer is disposed on the described circuit board, have thin shrapnel on it and be covered on the described thin shrapnel and with the metal clips of the corresponding configuration of described circuit board;
Second elastic layer, be disposed on described first elastic layer, it is made up of light guide plate and elastic body, has carrier on the described light guide plate, have block shape light guide section, frame shaped light guide section and strip light guide section on the described carrier, be provided with light-shielding structure between described block shape light guide section, described frame shaped light guide section and described strip light guide section, described light-shielding structure is separated into two light guide zone with described carrier; On described elastic body, form a plurality of convex bodys, the corresponding described sheet metal configuration of described convex body;
Light shield layer, it is located on described second elastic layer, and described light shield layer is hollow hole at corresponding leaded light particle place; And
Button group, it is made up of a plurality of buttons, has numeral, literal or the symbol of printing opacity at described keytop.
21. press-key structure as claimed in claim 20, wherein, described circuit board is a thin film printed circuit board.
22. press-key structure as claimed in claim 20, wherein, described thin shrapnel is made by rigid PC material.
23. press-key structure as claimed in claim 20, wherein, described carrier is made by the PC film or the TPU film of clear, colorless.
24. press-key structure as claimed in claim 20, wherein, described block shape light guide section is directed to light on the corresponding one key.
25. press-key structure as claimed in claim 20, wherein, described frame shaped light guide section is directed to light on the specific button cohort.
26. press-key structure as claimed in claim 20, wherein, described strip light guide section is directed to light on the lateral margin of described carrier.
27. press-key structure as claimed in claim 20, wherein, described light guide section is made up of a plurality of leaded light microstructures.
28. press-key structure as claimed in claim 27, wherein, described leaded light microstructure is semicircle shrinkage pool or the protruding grain that protrudes from described carrier surface.
29. press-key structure as claimed in claim 20, wherein, described light-shielding structure is chain form.
30. press-key structure as claimed in claim 29, wherein, the light-shielding structure of described chain form is made up of a plurality of perforation, and described a plurality of perforation are arranged in the adjacent mode that staggers.
31. press-key structure as claimed in claim 20, wherein, a side of described carrier and two jiaos of places all are provided with breach.
32. press-key structure as claimed in claim 31 wherein, has stepped light refraction portion in the described breach.
33. press-key structure as claimed in claim 20, wherein, described elastic body is made by soft PC material.
34. press-key structure as claimed in claim 20, wherein, described button is made by the material of printing opacity.
35. press-key structure as claimed in claim 20, wherein, described button bottom is provided with adhesion layer, and described adhesion layer is used to make described button to be covered on described light shield layer.
36. press-key structure as claimed in claim 20 further comprises luminescence component, described luminescence component is disposed at a side of described second elastic layer.
37. press-key structure as claimed in claim 20 further comprises anti-dazzling screen, described anti-dazzling screen is above between described luminescence component and described second elastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710000452XA CN101241205B (en) | 2007-02-07 | 2007-02-07 | Light guide board light-guiding method and key structure using the light guide board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710000452XA CN101241205B (en) | 2007-02-07 | 2007-02-07 | Light guide board light-guiding method and key structure using the light guide board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101241205A true CN101241205A (en) | 2008-08-13 |
| CN101241205B CN101241205B (en) | 2010-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710000452XA Expired - Fee Related CN101241205B (en) | 2007-02-07 | 2007-02-07 | Light guide board light-guiding method and key structure using the light guide board |
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| Country | Link |
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| CN (1) | CN101241205B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101908426A (en) * | 2010-08-09 | 2010-12-08 | 青岛海信电器股份有限公司 | Inductive key and electronic device with same |
| CN101488402B (en) * | 2007-11-08 | 2011-08-17 | 阿尔卑斯电气株式会社 | Illumination element for switch and switch apparatus having the same |
| CN102832068A (en) * | 2012-08-24 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Key device and light guide member layer |
| CN103293590A (en) * | 2013-05-22 | 2013-09-11 | 苏州达方电子有限公司 | Light guide plate |
| CN102132369B (en) * | 2008-08-28 | 2013-11-20 | 阿尔卑斯电气株式会社 | Input device |
| CN104121911A (en) * | 2014-06-16 | 2014-10-29 | 常州市武进金阳光电子有限公司 | Multifunctional vehicle-mounted navigation device |
| CN105453706A (en) * | 2013-08-29 | 2016-03-30 | 东洋铝株式会社 | Flexible printed substrate for mounting light emitting component, and flexible printed substrate mounted with light emitting component |
| CN108305810A (en) * | 2018-01-31 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| CN108320970A (en) * | 2018-03-09 | 2018-07-24 | 上海沃雨电子科技有限公司 | The production method of the pressing plate of thin film switch and thin film switch |
| CN110346964A (en) * | 2018-04-02 | 2019-10-18 | 夏普株式会社 | Display device |
| CN112995397A (en) * | 2021-02-07 | 2021-06-18 | 维沃移动通信有限公司 | Electronic product |
| CN114089855A (en) * | 2020-08-24 | 2022-02-25 | 群光电能科技股份有限公司 | Backlight assembly and light-emitting touch assembly thereof |
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| US4124879A (en) * | 1977-05-20 | 1978-11-07 | Motorola, Inc. | Illumination apparatus for use in an illuminatable pushbutton keyset and the like |
| JP3103833B2 (en) * | 1994-08-10 | 2000-10-30 | 信越ポリマー株式会社 | Illuminated pushbutton switch device |
| CN1079163C (en) * | 1999-03-12 | 2002-02-13 | 毅嘉科技股份有限公司 | Molding process of hard transpanent button |
| CN1148767C (en) * | 1999-03-12 | 2004-05-05 | 毅嘉科技股份有限公司 | Manufacture of elastic metal sheet for thin button |
| CN2829042Y (en) * | 2005-07-15 | 2006-10-18 | 达方电子股份有限公司 | Multicolor luminous keyboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101488402B (en) * | 2007-11-08 | 2011-08-17 | 阿尔卑斯电气株式会社 | Illumination element for switch and switch apparatus having the same |
| CN102132369B (en) * | 2008-08-28 | 2013-11-20 | 阿尔卑斯电气株式会社 | Input device |
| CN101908426A (en) * | 2010-08-09 | 2010-12-08 | 青岛海信电器股份有限公司 | Inductive key and electronic device with same |
| CN102832068A (en) * | 2012-08-24 | 2012-12-19 | 鸿富锦精密工业（深圳）有限公司 | Key device and light guide member layer |
| CN103293590A (en) * | 2013-05-22 | 2013-09-11 | 苏州达方电子有限公司 | Light guide plate |
| CN103293590B (en) * | 2013-05-22 | 2015-11-18 | 苏州达方电子有限公司 | Light guide plate |
| CN105453706A (en) * | 2013-08-29 | 2016-03-30 | 东洋铝株式会社 | Flexible printed substrate for mounting light emitting component, and flexible printed substrate mounted with light emitting component |
| CN104121911A (en) * | 2014-06-16 | 2014-10-29 | 常州市武进金阳光电子有限公司 | Multifunctional vehicle-mounted navigation device |
| CN108305810A (en) * | 2018-01-31 | 2018-07-20 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| CN108305810B (en) * | 2018-01-31 | 2019-08-27 | 苏州达方电子有限公司 | Illuminated keyboard and its backlight module |
| CN108320970A (en) * | 2018-03-09 | 2018-07-24 | 上海沃雨电子科技有限公司 | The production method of the pressing plate of thin film switch and thin film switch |
| CN110346964A (en) * | 2018-04-02 | 2019-10-18 | 夏普株式会社 | Display device |
| CN114089855A (en) * | 2020-08-24 | 2022-02-25 | 群光电能科技股份有限公司 | Backlight assembly and light-emitting touch assembly thereof |
| CN114089855B (en) * | 2020-08-24 | 2024-08-02 | 群光电能科技股份有限公司 | Backlight assembly and light-emitting touch control assembly thereof |
| CN112995397A (en) * | 2021-02-07 | 2021-06-18 | 维沃移动通信有限公司 | Electronic product |
| CN112995397B (en) * | 2021-02-07 | 2023-12-08 | 维沃移动通信有限公司 | Electronic product |
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