CN101900281A - Backlight module - Google Patents
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- CN101900281A CN101900281A CN2010102464642A CN201010246464A CN101900281A CN 101900281 A CN101900281 A CN 101900281A CN 2010102464642 A CN2010102464642 A CN 2010102464642A CN 201010246464 A CN201010246464 A CN 201010246464A CN 101900281 A CN101900281 A CN 101900281A
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Abstract
The present invention relates to a kind of backlight module, comprising: a LGP; Described LGP comprises: an exiting surface; Described exiting surface has at least one first side, at least one second side, at least one first through hole, at least one first fluting and a plurality of micro-structural row; Those micro-structurals are arranged on this exiting surface column-spacingly; The bearing of trend of parallel this first side of bearing of trend of those micro-structural row, this first through hole are between wantonly two those adjacent micro-structurals are listed as, and this first fluting is positioned at one of this exiting surface middle section; Also comprise: one first luminescence component; Described first luminescence component is placed in this first fluting, and is configured to towards the direction of this second side luminous; One of this first luminescence component main emergent shaft departs from this first through hole; The first side of LGP or the light briliancy that the second side should have are provided, and then promote the glorious degrees in electronic installation corner and the bright uniformity of whole electronic installation.
Description
Technical field
The present invention relates to a kind of backlight module, relate in particular to a kind of structure with backlight module of LGP.
Background technology
Along with development of science and technology, the design of computer keyboard is variation more and more, and except the function of considering product, the visual effect of product also can have influence on sales volume in a way and more and more come into one's own.For example, the existing on the market at present illuminated keyboard of releasing except visually producing the attraction, can also use in the place of night or light deficiency.
Illuminated keyboard of the prior art is that LGP and light source are housed.The incidence surface of LGP is positioned at LGP can present side outside its thickness, and the exiting surface of LGP is positioned at its two largest face.The leaded light mode of LGP is that light source is positioned over by the incidence surface, makes the light of light source be imported in the LGP from incidence surface, under the effect by LGP, light just by light-guide plate guides to exiting surface so that area source to be provided.Because some cause, for example to install or unavoidable needs such as heat radiation, LGP need offer one or more through hole, so that reach the purpose of above-mentioned functions.Yet through hole will reduce the briliancy of light, even, can interrupt light and march to LGP away from one of light source end, cause the illuminated keyboard corner to have dark light field, also make the bright uniformity deficiency of whole illuminated keyboard.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of backlight module, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: a LGP; Described LGP comprises: an exiting surface; Described exiting surface has at least one first side, at least one second side, at least one first through hole, at least one first fluting and a plurality of micro-structural row; Those micro-structurals are arranged on this exiting surface column-spacingly; The bearing of trend of parallel this first side of bearing of trend of those micro-structural row, this first through hole are between wantonly two those adjacent micro-structurals are listed as, and this first fluting is positioned at one of this exiting surface middle section; Also comprise: one first luminescence component; Described first luminescence component is placed in this first fluting, and is configured to towards the direction of this second side luminous; One of this first luminescence component main emergent shaft departs from this first through hole.
Compared with prior art, the invention has the beneficial effects as follows: by departing from the main emergent shaft of luminescence component, with the through hole of dodging, just can avoid being subjected to the influence of through hole, directly arrive at first side corner location or second side without barrier away from LGP, the first side of LGP or the light briliancy that the second side should have are provided, and then promote the glorious degrees in electronic installation corner and the bright uniformity of whole electronic installation.
Description of drawings
Figure 1A illustrates vertical view and the light angle schematic diagram of backlight module of the present invention under one first embodiment.
Figure 1B illustrates the 1B-1B profile of Figure 1A.
Fig. 2 A illustrates vertical view and the light angle schematic diagram of backlight module of the present invention under one second embodiment.
Fig. 2 B illustrates the 2B-2B profile of Fig. 2 A under second embodiment.
Fig. 3 illustrates the vertical view of backlight module of the present invention under one the 3rd embodiment.
Fig. 4 illustrates the vertical view of backlight module of the present invention under one the 4th embodiment.
Fig. 5 illustrates the vertical view of backlight module of the present invention under one the 5th embodiment.
Fig. 6 illustrates the vertical view of backlight module of the present invention under one the 6th embodiment.
Fig. 7 illustrates the vertical view of backlight module of the present invention under one the 7th embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is described in further detail:
The present invention discloses a kind of backlight module, and the strongest light by light source departs from through hole, to avoid consuming its glorious degrees ahead of time.
This kind backlight module comprises a LGP and one first luminescence component.LGP comprises an exiting surface.Exiting surface has a first side, a second side, one first through hole, one first fluting and a plurality of micro-structural row.Micro-structural is arranged on the exiting surface column-spacingly, the bearing of trend of the parallel first side of its bearing of trend.First through hole is between wantonly two adjacent micro-structurals are listed as.Fluting is positioned at one of exiting surface middle section.First luminescence component is placed in first fluting, and is configured to towards the direction of second side luminous.So, by the configuration of first luminescence component, one of first luminescence component main emergent shaft departs from first through hole.
Among one of the present invention embodiment, first fluting and first through hole are between identical two micro-structurals are listed as, and the reference axis of the parallel first side with of the main emergent shaft of first luminescence component has one first angle.Among this embodiment, first angle is the 3-5 degree.
Among another embodiment of the present invention, the exiting surface of LGP more comprises one second fluting.Second fluting is positioned at the middle section of the exiting surface of LGP.Backlight module more comprises one second luminescence component.Second luminescence component is placed in second fluting, and its light emission direction is the light emission direction in contrast to first luminescence component.
Among this another embodiment, one of not parallel first side of one of second luminescence component main emergent shaft bearing of trend, and have one second angle between the reference axis of the parallel first side of the main emergent shaft of second luminescence component with one.Among this another embodiment, second angle is the 3-5 degree.
During one of this another embodiment changed, second fluting and first was slotted all between these identical two micro-structurals row.In the another variation of this another embodiment, second fluting and first fluting lay respectively between different two adjacent micro-structurals are listed as.
In addition, among this another embodiment, LGP more comprises one second through hole.Second through hole and second is slotted equally between identical two micro-structurals row.So, by the configuration of second luminescence component, the main emergent shaft of second luminescence component departs from second through hole, and its light emission direction is the light emission direction in contrast to first luminescence component.
In the variation again of this another embodiment, the exiting surface of LGP more comprises one the 3rd fluting.The 3rd fluting is positioned at the middle section of LGP.Backlight module more comprises one the 3rd luminescence component.The 3rd luminescence component is placed in the 3rd fluting, and is configured to towards a first side direction luminous.And by the configuration of the 3rd luminescence component, one of the 3rd luminescence component main emergent shaft is by between first luminescence component and second luminescence component.In addition, each micro-structural row has the micro structured pattern of a plurality of equidistant arrangements, and the 3rd is opened in a wherein micro structured pattern.
Based on some cause, for example install, unavoidable needs such as heat radiation or optical guidance, need offer one or more through hole on the LGP, so that carry out above-mentioned function.Yet through hole may influence the briliancy that navigates on light in the LGP, reduces the light field in illuminated keyboard corner.Therefore, the present invention discloses a kind of backlight module, by painstakingly not with each main optical axis of light source by through hole so that can directly arrive at the long-range of LGP without barrier, consume the light intensity that it should have because of the influence that is subjected to through hole ahead of time with each main optical axis of avoiding light source.
The present invention's first embodiment, this kind backlight module 100 comprise a LGP 200 and a light source group 300.This LGP 200 has the bottom surface (figure do not show) of rectangle exiting surface 210 and relative exiting surface, and around individual side more than its exiting surface and the bottom surface, and wherein the area of exiting surface or bottom surface is all greater than the area of a side wherein.Have two relative first sides (this embodiment claims the first long limit 211 and the second long limit 212) and two relative second sides (this embodiment claims first minor face 213 and second minor face 214) around the rectangle exiting surface 210.
In addition, rectangle exiting surface 210 surfaces more are arranged with a plurality of micro-structural row 220.This is the bearing of trend on the long limit 211 of structure row 220 bearing of trend almost parallel first separately or the second long limit 212 slightly.And these a little each micro-structural row 220 have the micro structured pattern 221 of a plurality of spacing arrangements respectively, this slightly all micro structured pattern 221 of structure row 220 be provided with in response to the correspondence position of keyboard respectively.
LGP 200 offers a plurality of flutings.These a little flutings are to be opened on the LGP 200, and roughly are arranged in one of LGP 200 middle section M.Because wall can be one in order to guide the incidence surface that incident light enters LGP 200 within LGP 200 each fluting, so incident light is sent light by each micro structured pattern 221 from exiting surface, so that many light-emitting zones of corresponding each keyboard to be provided.
Described light source group 300 comprises a flexible circuit board 310 and a plurality of luminescence component in this first embodiment.These a little luminescence components are placed in respectively in these a little flutings one by one, and luminous towards the direction of first minor face 213 and second minor face 214 respectively in above-mentioned middle section M.Flexible circuit board 310 is positioned at the face in addition of exiting surface 210.These a little luminescence components for example are light emitting diode.
It should be noted that, keyboard in fact corresponding different size, this slightly the micro structured pattern 221 of structure row 220 need look the keyboard of different size and corresponding the setting, therefore, through hole is not arranged between wantonly two micro structured pattern 221 of each micro-structural row 220, avoids occupying the position of arbitrary micro structured pattern 221.So these a little through holes lay respectively on the LGP 200, and between wantonly two adjacent micro-structural row 220.
For this reason, among this first embodiment, wherein a luminescence component (to call first luminescence component 321 in the following text) is placed in the fluting (to call first fluting 230 in the following text), and to be located on the flexible circuit board 310 towards the luminous configuration mode of first minor face, 213 directions.And by the configuration of first luminescence component 321, one of first luminescence component 321 main emergent shaft A departs from through hole, and directly arrives at this first minor face 213.
Particularly, when first luminescence component 321, first fluting 230 and a through hole (to call first through hole 260 in the following text) wherein are similarly between two identical micro-structural row 220, and when first through hole 260 is positioned at first luminescence component 321 towards the luminous scope of first minor face, 213 directions, though first through hole 260 is positioned at first luminescence component 321 towards the luminous scope of first minor face, 213 directions, because the main emergent shaft A and of first luminescence component 321 is parallel to and has one first angle theta 1 between the reference axis S on the first long limit 211 (or second grow limit 212) (first angle theta 1 is at least more than 3, the preferably can be between the 3-5 degree), therefore, the main emergent shaft A of first luminescence component 321 can not pass through first through hole 260, so that arrive at the position of first minor face 213 of LGP 200 without barrier, to avoid exhausting its glorious degrees ahead of time near the first long limit 211 or the second long limit 212.
In addition, in this embodiment, another luminescence component (to call second luminescence component 322 in the following text) is placed in another fluting (to call second fluting 240 in the following text), and to be located on the flexible circuit board 310 towards the luminous configuration mode of second minor face, 214 directions.And by the configuration of second luminescence component 322, one of second luminescence component 322 main emergent shaft A system departs from through hole, and directly arrives at this second minor face 214.Particularly, when second fluting 240 and another through hole (to call second through hole 270 in the following text) wherein similarly between two identical micro-structural row 220, and when second through hole 270 is positioned at second luminescence component 322 towards the luminous scope of second minor face, 214 directions, though second through hole 270 is positioned at second luminescence component 322 towards the luminous scope of second minor face, 214 directions, but because the main emergent shaft A and of second luminescence component 322 is parallel to and has one second angle theta 2 between the reference axis S on the first long limit 211 (or second long limit 212) (second angle theta 2 is for more than at least 3 degree, the preferably can be between the 3-5 degree), therefore, the main emergent shaft A of second luminescence component 322 can not pass through second through hole 270, so that arrive at the position of second minor face 214 of LGP 200 without barrier, to avoid exhausting its glorious degrees ahead of time near the first long limit 211 or the second long limit 212.
In addition, this embodiment is not limited to second fluting 240 and first fluting 230 all similarly between two identical micro-structural row 220, or second fluting 240 and first slots 230 between two different micro-structural row 220.
In addition, see also shown in Fig. 2 A and Fig. 2 B.In order to make drawing succinct, will omit the light angle of luminescence component, only present its main emergent shaft.
Among this second embodiment, the LGP 200 of the LGP 201 and first embodiment is identical, and wherein a fluting that is not all LGP 201 is the non-groove (Fig. 2 B) that runs through.So, just do not repeat to give unnecessary details at this.Described light source group 301 comprises silver medal slurry circuit layer 320 and a plurality of first luminescence component 321 and second luminescence component 322 in this second embodiment.Silver slurry circuit layer 320 is layed in the surface of LGP 201 in exiting surface 210, and be positioned at middle section M, and through these a little first fluting, 231 and second flutings 241, among this second embodiment, these a little first luminescence components 321 are placed in respectively in first fluting 231 one by one, and electrically connect silver slurry circuit layer 320; These a little second luminescence components 322 are placed in respectively in second fluting 241 one by one, and electrically connect silver slurry circuit layer 320.These a little luminescence components 321,322 for example are light emitting diode.In addition, these a little first luminescence components 321 respectively at luminous in the above-mentioned middle section M towards the direction of first minor face 213, these a little second luminescence components 322 are luminous towards the direction of second minor face 214 respectively.Because the configuration mode of these a little first luminescence components 321, these a little second luminescence components 322 is same as the configuration mode of first embodiment, so, just do not repeat to give unnecessary details at this.
The present invention more discloses more embodiment further to illustrate the configuration variation of this case luminescence component.Below diagram in, succinct in order to make drawing, will omit the light angle of luminescence component, only present its main emergent shaft.
See also shown in Figure 3.Under the 3rd embodiment, luminescence component is not limited to the kenel of first embodiment or second embodiment.Another luminescence component (to call the 3rd luminescence component 323 in the following text) is placed in the another fluting (to call the 3rd fluting 250 in the following text), and it is luminous to be set to grow limit 211 (or second long limit 212) direction towards first.And by the configuration of the 3rd luminescence component 323, one of the 3rd luminescence component 323 main emergent shaft A is by between first luminescence component 321 and second luminescence component 322.So, just can compensate the glorious degrees between first luminescence component 321 and second luminescence component 322, promote the bright uniformity of keyboard.
Particularly, the 3rd fluting 250 is opened in wherein on the micro structured pattern 221.But whether the 3rd fluting 250 is not limit and need be opened in wherein on the micro structured pattern 221.
See also shown in Figure 4.Among the 4th embodiment, luminescence component is not limited to the kenel of first embodiment or second embodiment.
Among this 4th embodiment, for example a plurality of the 4th luminescence components 324 of luminescence component and the 5th luminescence component 325 all are positioned at middle section M, and all the 4th luminescence components 324 all than the 5th luminescence component 325 near second minor face 214.The 4th luminescence component 324 is placed in respectively in these a little the 4th flutings 251 one by one, and is configured to towards the direction on the first long limit 211 luminous.And, the parallel reference axis S of main emergent shaft A one of in the 5th luminescence component 325.The 5th luminescence component 325 is placed in respectively in these a little the 5th flutings 252 one by one, and is configured to towards the direction on the first long limit 211 luminously, and one of arbitrary the 5th luminescence component 325 main emergent shaft A is by between two adjacent the 4th luminescence components 324.So, just can compensate the glorious degrees between two adjacent the 4th luminescence components 324, promote the bright uniformity of keyboard.Particularly, the main emergent shaft A of all the 5th luminescence components 325 all has one the 3rd angle theta 3 with the reference axis S on the parallel first long limit 211 (or second long limit 212), and they are more than the 3rd angle theta 3 at least 5 degree.
See also shown in Figure 5.Among this 5th embodiment, luminescence component is not limited to the kenel of first embodiment or second embodiment.For example a plurality of the 6th luminescence components 326 of luminescence component and the 7th luminescence component 327 all are positioned at middle section M, and all the 6th luminescence components 326 all than the 7th luminescence component 327 near second minor face 214.The 6th luminescence component 326 is placed in respectively in these a little the 6th flutings 253 one by one, and is configured to towards the first long limit 211 luminous near the direction of first minor face 213.And, having one the 4th angle theta 4 between one of the 6th luminescence component 326 main emergent shaft A and the reference axis S, they are more than the 4th angle theta 4 at least 5 degree.The 7th luminescence component 327 is placed in respectively in these a little minion grooves 254 one by one, and is configured to towards the first long limit 211 luminous near the direction of second minor face 213.And, having one the 5th angle theta 5 between one of the 7th luminescence component 327 main emergent shaft A and the reference axis S, they are more than the 5th angle theta 5 at least 5 degree.In addition, the 4th angle theta 4 of these a little the 6th luminescence components 326 is all inequality.The 5th angle theta 5 of these a little the 7th luminescence components 327 is all inequality.So, the exiting surface 210 that just can satisfy LGP 200 among this 5th embodiment emphasizes that the zone on the relative first long limit 211 has the demand of strong bright dipping briliancy.
See also shown in Figure 6.Among this 6th embodiment, luminescence component is not limited to the kenel of first embodiment or second embodiment.For example a plurality of the 8th luminescence components 328 of luminescence component and the 9th luminescence component 329 all are positioned at middle section M, and all the 8th luminescence components 328 all than the 9th luminescence component 329 near second minor face 214.The 8th luminescence component 328 is placed in respectively in these a little octavo grooves 255 one by one, and wantonly two the 8th adjacent luminescence components 328 are configured to luminous or luminous near the direction of first minor face 213 towards the second long limit 211 near the direction of first minor face 213 towards the first long limit 211 respectively.And, having one the 5th angle theta 5 between one of the 8th luminescence component 328 main emergent shaft A and the reference axis S, they are more than the 5th angle theta 5 at least 6 degree.
The 9th luminescence component 329 is placed in respectively in these a little the 9th flutings 256 one by one, and wantonly two the 9th adjacent luminescence components 329 are configured to luminous or luminous near the direction of second minor face 214 towards the first long limit 211 near the direction of first minor face 213 towards the second long limit 212 respectively.And, having one the 6th angle theta 6 between one of the 9th luminescence component 329 main emergent shaft A and the reference axis S, they are more than the 6th angle theta 6 at least 5 degree.So, the exiting surface 210 that just can satisfy LGP 200 among this 5th embodiment emphasizes that the zone of relative first minor face 213 has the demand of strong bright dipping briliancy.
Fig. 7 illustrates the vertical view of backlight module of the present invention under one the 7th embodiment.The present invention is in the 7th embodiment, and this is the bearing of trend of structure row 220 bearing of trend almost parallel first side separately slightly.Each micro-structural row 220 is not only limit and is made up of the micro structured pattern of a plurality of spacing arrangements, and each micro-structural row 220 also can present continuous strip.In addition, the front of LGP 203 is not limit yet and only is to can be the rectangle exiting surface on the non-rectangle exiting surface (as trapezoidal exiting surface 215) yet.Particularly.Have relative two first sides (this embodiment claims short base 216 and long base 217) and the two not parallel second sides (this embodiment claims first hypotenuse 218 and second hypotenuse 219) that parallel around the trapezoidal exiting surface 215.So, first luminescence component 321 can be luminous towards the direction of first hypotenuse 218, and its main emergent shaft A departs from first through hole 260.Second luminescence component 322 is luminous towards the direction of an opposite second side, and is promptly luminous towards the direction of second hypotenuse 219.Moreover the present invention does not limit backlight module 100 only to be applied on the illuminated keyboard in the 7th embodiment, and other can all can be applicable to this for the electronic installation (for example phone, desk lamp etc.) that sends the striation figure.
What need definition is, because light emitting diode is that directive property is luminous, and has certain light angle, the main emergent shaft A of luminescence component is meant the strongest light of energy in the light emission direction in the light emitting diode.And described middle section M grows limit 212 scope that defined of the imaginary line between the central point C separately by contiguous LGP 200 roughly between the first long limit 211 and second.Another kind of definition, middle section M can separate out roughly the same halves with LGP 200.Or middle section M also can occupy the scope of LGP 1/200th 3.In addition, fluting called after first fluting of the above in order to be convenient to explanation in specification, is not painstakingly to mean this not identical purposes of tool of slotting only to the 9th fluting.
So, the present invention is by departing from the main emergent shaft of luminescence component, with the through hole of dodging, just can avoid being subjected to the influence of through hole, directly arrive at first side corner location or second side without barrier away from LGP, the first side of LGP or the light briliancy that the second side should have are provided, and then promote the glorious degrees in electronic installation corner and the bright uniformity of whole electronic installation.
The present invention discloses among as above each embodiment; be not in order to limiting the present invention, anyly have the knack of this skill, without departing from the spirit and scope of the invention; when can doing various changes and retouching, so the present invention's protection domain is as the criterion when looking appended claim book protection domain.
Claims (10)
1. a backlight module comprises: a LGP; It is characterized in that: described LGP comprises: an exiting surface; Described exiting surface has at least one first side, at least one second side, at least one first through hole, at least one first fluting and a plurality of micro-structural row; Those micro-structurals are arranged on this exiting surface column-spacingly; The bearing of trend of parallel this first side of bearing of trend of those micro-structural row, this first through hole are between wantonly two those adjacent micro-structurals are listed as, and this first fluting is positioned at one of this exiting surface middle section; Also comprise: one first luminescence component; Described first luminescence component is placed in this first fluting, and is configured to towards the direction of this second side luminous; One of this first luminescence component main emergent shaft departs from this first through hole.
2. backlight module according to claim 1, it is characterized in that: this first fluting and this first through hole are between identical this two micro-structural is listed as, and the reference axis of parallel this first side with of this main emergent shaft of this first luminescence component has an angle.
3. backlight module according to claim 2 is characterized in that: this exiting surface of this LGP more comprises: one second fluting; Described second fluting is positioned at this middle section; And this backlight module more comprises: one second luminescence component; Described second luminescence component is placed in this second fluting, and its light emission direction is the light emission direction in contrast to this first luminescence component.
4. backlight module according to claim 3 is characterized in that: this second fluting and this first fluting are all between identical this two micro-structural is listed as.
5. backlight module according to claim 3 is characterized in that: this second fluting and this first fluting lay respectively between different two adjacent micro-structurals are listed as.
6. according to claim 4 or 5 described backlight modules, it is characterized in that: this bearing of trend of not parallel this first side of one of this second luminescence component main emergent shaft, and have an angle between the reference axis of parallel this first side of this main emergent shaft of this second luminescence component with one.
7. backlight module according to claim 6 is characterized in that: this exiting surface of this LGP more comprises: one second through hole; Between identical these two micro-structurals row, this main emergent shaft of this second luminescence component departs from this second through hole equally for described second through hole and this second fluting.
8. backlight module according to claim 7 is characterized in that: this angle is at least 3.
9. according to claim 4 or 5 described backlight modules, it is characterized in that: this exiting surface of this LGP more comprises: one the 3rd fluting; Described the 3rd fluting is positioned at this middle section; And this backlight module more comprises: one the 3rd luminescence component; Described the 3rd luminescence component is placed in the 3rd fluting, and is configured to towards the direction of this first side luminously, and one of the 3rd luminescence component main emergent shaft is by between this first luminescence component and this second luminescence component.
10. backlight module according to claim 9 is characterized in that: arbitrary those micro-structurals row have the micro structured pattern of a plurality of equidistant arrangements, the 3rd be opened in those micro structured pattern one of them.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102464642A CN101900281A (en) | 2010-08-06 | 2010-08-06 | Backlight module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102464642A CN101900281A (en) | 2010-08-06 | 2010-08-06 | Backlight module |
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| CN101900281A true CN101900281A (en) | 2010-12-01 |
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| CN102182982A (en) * | 2011-04-28 | 2011-09-14 | 苏州茂立光电科技有限公司 | Light source module |
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| TWI567341B (en) * | 2014-11-19 | 2017-01-21 | 達方電子股份有限公司 | Light emission module and light guide plate and manufacturing method thereof |
| US9664837B2 (en) | 2014-11-19 | 2017-05-30 | Darfon Electronics Corp. | Light emission module and light guide plate and manufacturing method thereof |
| CN109307905A (en) * | 2017-07-27 | 2019-02-05 | 群光电能科技股份有限公司 | Light guide module |
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Application publication date: 20101201 |