CN201589201U - Structure for enhancing or homogenizing brightness of light guide plate - Google Patents
Structure for enhancing or homogenizing brightness of light guide plate Download PDFInfo
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- CN201589201U CN201589201U CN2009202682315U CN200920268231U CN201589201U CN 201589201 U CN201589201 U CN 201589201U CN 2009202682315 U CN2009202682315 U CN 2009202682315U CN 200920268231 U CN200920268231 U CN 200920268231U CN 201589201 U CN201589201 U CN 201589201U
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- lgp
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- homogenising
- incidence surface
- glorious degrees
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Abstract
The utility model relates to a structure for enhancing or homogenizing brightness of a light guide plate. A plurality of microstructures are arranged on an incidence surface of the light guide plate, and after light transmitted through the microstructure to enter the light guide plate, brightness is increased in specific area of the light guide plate is increased or lighting of the light guide plate is homogenized through light reflection and refraction. The microstructures can be projections exposed on the incidence surface of the light guide plate or recesses lower than the incidence surface, a pitch is formed between each two projections or each two recesses, each projection or recess has certain height or concavity, the pitches match and change with the height or concavity according to obtained brightness degree, thereby generating different light quality entering the light guide plate.
Description
Technical field
The utility model relates to a kind of backlight module, relates in particular to a kind of light conducting plate structure that is applied to backlight module.
Background technology
The application of backlight module is very general, for example resemble mobile computer, display, mobile phone, LCD TV ... wait the not irradiative electronic equipment of display itself all to need backlight module that light source is provided.
General backlight module includes LGP and light source, for the electronic product that the body thickness requirement approaches, typically use LED as light source, and this light source is located at the incidence surface of LGP side, first side of LGP then is provided with a reflector plate, and second side surface opposite is as exiting surface and the plural blooming piece of being made up of diffusion sheet and brightening piece etc. is set.The light that light source sent is entered by the incidence surface projection and transmits in the LGP, and part light is reflected by reflector plate, penetrates by diffusion sheet and brightening piece from exiting surface in regular turn again.
Have the reason of good directive property based on the light that LED launched, general backlight module all is provided with a plurality of light sources at the incidence surface of LGP, makes most light sources launch light into LGP and can present illumination effect at the exiting surface of LGP.But because the factor of light source directive property, LGP is higher relatively in the brightness of the position that light directly passes through, and the position of directly not passing through then brightness is relatively low; Again, owing to the conduction meeting of the light prolongation along with distance decays, make that the brightness of the position that LGP is near apart from light source is higher relatively, then brightness is relatively low apart from position that light source is far away, cause the brightness possibility of whole LGP inhomogeneous, therefore, the LGP of backlight module in the prior art all can be provided with the structure that is used for making the LGP luminenscence homogenization.
For example No. the 595723rd, the Taiwan patent announcement of Taiwan, it is the fine structure that is provided with several strips at LGP corresponding to the spot light direction, and be the configuration that shape, angle, density, size or position are done in the center with these fine structures over against the light incidence section of answering spot light, to obtain the effect of spot light incident light homogenising output.
The Taiwan patent I242674 of Taiwan number, it then is the micro-structural that most arrangements are set at the light in part of LGP, and the exiting surface of the orientation of most micro-structurals and LGP system is oblique form, when making micro-structural by most oblique arrangement of the light of light source, can be with the light deflection guiding reflecting surface of light source, to increase the utilization rate of light.
The Taiwan patent M317584 of Taiwan number, then be that the V-type groove is set on the incidence surface of LGP, with the light source that allows by the incidence surface light inlet, through the refraction of V-type groove, can be fast penetrate and as display light source by the exiting surface of LGP, according to and the bang path of minimizing light source in LGP, to reduce the consume of luminous energy, reduce the generation of used heat, it can save the consumption of the energy, reduces use cost simultaneously.
The micro-structural of the LGP incidence surface of aforementioned various prior aries, have the equal pitch and the degree of depth that equates substantially, this whole luminenscence homogenization for LGP is no doubt helpful, but may be to some extent not enough for the enhancing of desiring to obtain at LGP local luminous briliancy.
Summary of the invention
The utility model technical issues that need to address have provided a kind of structure that highlights LGP glorious degrees or homogenising, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises: the incidence surface at a LGP is provided with plural micro-structural; Described micro-structural is a kind of protrusion of incidence surface of outstanding this LGP, forms a pitch between two protrusions, and each protrusion has a height.
The utility model comprises: the incidence surface at a LGP is provided with plural micro-structural; Described micro-structural is a kind of recess that is lower than the incidence surface of this LGP, forms a pitch between two recesses, and each recess has a degree of depth.
Compared with prior art, the beneficial effects of the utility model are: the exiting surface that makes LGP except the illumination effect that can obtain homogenising, the pitch that can also be by micro-structural or the change of the degree of depth and produce different briliancy effects in the part of LGP.
Description of drawings
Fig. 1 is a protrusion for demonstration micro-structural of the present utility model, and the pitch of these protrusions is all equal, but the embodiment schematic diagram that the height of each protrusion reduces toward the centre gradually from symmetrical both sides.
Fig. 2 is a protrusion for demonstration micro-structural of the present utility model, and the pitch of these protrusions is all equal, but the embodiment schematic diagram that the height of each protrusion increases toward the centre gradually from symmetrical both sides.
Fig. 3 is a protrusion for demonstration micro-structural of the present utility model, and the height of these protrusions is equal, but the embodiment schematic diagram that pitch enlarges toward the centre gradually from symmetrical both sides.
Fig. 4 is for showing that micro-structural of the present utility model is a protrusion, and the height of these protrusions equates, but pitch from symmetrical both sides toward middle diminishing embodiment schematic diagram.
Fig. 5 is for showing that micro-structural of the present utility model is a protrusion, and this protrusion is semicircular embodiment schematic diagram perpendicular to the section of light incident direction.
Fig. 6 is a protrusion for demonstration micro-structural of the present utility model, and this protrusion is the embodiment partial perspective view of semicircle spheroid.
Fig. 7 is a protrusion for demonstration micro-structural of the present utility model, and this protrusion is the embodiment partial perspective view of bullet.
Fig. 8 is a protrusion for demonstration micro-structural of the present utility model, and should give prominence to system extends to another relative side from a side of incidence surface embodiment schematic diagram.
Fig. 9 is a recess for demonstration micro-structural of the present utility model, and the pitch of these recesses is all equal, but the embodiment schematic diagram that each concave depth reduces toward the centre gradually from symmetrical both sides.
Figure 10 is a recess for demonstration micro-structural of the present utility model, and the pitch of these recesses is all equal, but the embodiment schematic diagram that each concave depth increases toward the centre gradually from symmetrical both sides.
Figure 11 is a recess for demonstration micro-structural of the present utility model, and these concave depth are equal, but the embodiment schematic diagram that pitch enlarges toward the centre gradually from symmetrical both sides.
Figure 12 is for showing that micro-structural of the present utility model is a recess, and these concave depth equate, but pitch from symmetrical both sides toward middle diminishing embodiment schematic diagram.
Figure 13 is for showing that micro-structural of the present utility model is a recess, and this recess is semicircular embodiment schematic diagram perpendicular to the section of light incident direction.
Figure 14 is a recess for demonstration micro-structural of the present utility model, and this recess is the embodiment partial perspective view of semicircle sphere.
Figure 15 is a recess for demonstration micro-structural of the present utility model, and this recess is the embodiment partial perspective view of taper.
Figure 16 is a recess for demonstration micro-structural of the present utility model, and this recess is the embodiment schematic diagram that extends to another relative side from a side of incidence surface.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:
Main purpose of the present utility model, be that micro-structural at the LGP incidence surface of existing backlight module improves, the exiting surface that makes LGP can also produce different briliancy effects in the part at LGP by the change of the pitch of micro-structural or the degree of depth except the illumination effect that can obtain homogenising.
Feature of the present utility model, it is the micro-structural that to be located at the incidence surface of LGP, will show briliancy according to the LGP exiting surface needs and is made as and possesses the different pitches or the degree of depth, after making these micro-structurals of light penetration enter in the LGP, improve briliancy by the reflection of light and refraction and in the specific region of LGP, or make the luminenscence homogenization of LGP.
The utility model is for the technological means of described micro-structural, it is the protrusion that molds outstanding this incidence surface of plural number at the incidence surface of LGP, form a pitch between two protrusions, each protrusion has a height, this pitch with highly be to cooperate variation according to the briliancy degree of LGP institute desire acquisition, enter the different light quantities of LGP with generation.
The utility model is for another technological means of described micro-structural, be that incidence surface at LGP molds the recess that plural number is lower than the incidence surface of this LGP, form a pitch between two recesses, each recess has a degree of depth, this pitch and degree of depth system cooperates variation according to the briliancy degree of described LGP institute desire acquisition, enters the different light quantities of LGP with generation.
As first kind selection, the protrusion of the utility model micro-structural or recess, its pitch can all equate, but the height of each protrusion or each concave depth not necessarily equate.
As second kind of selection, the height of the protrusion of the utility model micro-structural or concave depth can all equate, but each pitch not necessarily equates.
Select as the third, the pitch of these protrusions of the utility model micro-structural and height, or the distance joint and the degree of depth of recess can all not necessarily equate.
As the 4th kind of selection, the protrusion of the utility model micro-structural or recess, it can reduce height from the both sides of symmetry gradually in the arrangement of incidence surface toward the centre.
As the 5th kind of selection, the protrusion of the utility model micro-structural or recess, it can increase height from the both sides of symmetry gradually in the arrangement of incidence surface toward the centre.
As the 6th kind of selection, the protrusion of the utility model micro-structural or recess, it can reduce pitch toward the centre from the both sides of symmetry gradually in the arrangement of incidence surface.
As the 7th kind of selection, the protrusion of the utility model micro-structural or recess, it can increase pitch toward the centre from the both sides of symmetry gradually in the arrangement of incidence surface.
The micro-structural protrusion of the utility model or the preferred embodiment of recess are that the side from incidence surface extends to another relative side; Described protrusion or recess can be triangle, semicircle, taper or any suitable geometry perpendicular to the section of light incident direction.
By aforesaid micro-structural, when the local location of LGP needs higher briliancy, can reduce the protrusion height of incidence surface that should local location or increase recess depths, also can enlarge the pitch of protrusion or recess, to increase light-inletting quantity that should local location.Opposite, when the local location of LGP needs lower briliancy, then can increase the protrusion height of incidence surface that should local location or reduce recess depths, also can dwindle the pitch of protrusion or recess, to reduce light-inletting quantity that should local location.
Fig. 1 shows LGP 1 of the present utility model, has an incidence surface 11 that is positioned at side, and with a side of maximum as exiting surface 12, described incidence surface 11 is formed with plural micro-structural 13, and plural light source 2 is set at incidence surface 11 places, light source 2 can enter ray cast in the LGP 1 by micro-structural 13 and transmit, and enters LGP again light produces reflection and reflects by micro-structural the time after, and then presents comparatively uniform luminous effect by exiting surface 12.Feature of the present utility model is the particular design by micro-structural, changing light by the light quantity after the micro-structural, and then reaches the effect of adjusting exiting surface 12 briliancy.The micro-structural 13 of the utility model can have two kinds of forms, and first kind of form is the protrusion 13a of Fig. 1 to outstanding incidence surface 11 surfaces shown in Figure 8, and second kind of form is that Fig. 9 is to the recess 13b that is lower than incidence surface 11 surfaces shown in Figure 16.
As seen from Figure 1, a wherein embodiment of the present utility model, be that will to give prominence to the micro-structural of incidence surface 11 one-body molded for a plurality of perpendicular to the section of incidence surface protrusion 13a triangular in shape, pitch P between the two protrusion 13a all equates, but the height H of each protrusion is to be reduced gradually toward the centre by symmetrical both sides.Embodiment shown in Figure 2 then be that the pitch P between the two protrusion 13a all equates, but the height H of each protrusion system is increased toward the centre gradually by symmetrical both sides.Therefore, when light passed through incidence surface 11, the protrusion 13a that height H is big can form bigger photoresistance, and the little protrusion of height H produces less photoresistance, cause from the low clearance quantity of incident light morely, just can produce higher briliancy LGP regional area that should low clearance protrusion position.
Embodiment shown in Figure 3, for the height of each protrusion 13a is equal, but pitch P enlarges gradually from symmetrical both sides toward the centre.Embodiment shown in Figure 4, for the height of these protrusions 13a is equal, but pitch P dwindles gradually from symmetrical both sides toward the centre.Therefore, when light passes through incidence surface 11, the protrusion 13a that pitch P is little forms bigger photoresistance because density is high, and the big protrusion of pitch P produces less photoresistance because of density is low, cause from low-density protrusion quantity of incident light morely, just can produce higher briliancy LGP regional area that should low-density protrusion position.
In addition, protrusion 13a of the present utility model, its pitch P and height H are not limited to aforesaid arrangement form, but can do variation in the fabrication stage according to the actual needs of local briliancy of LGP or homogenising degree, allow the regional area of LGP obtain different light-inletting quantities and to produce specific briliancy.
Fig. 9 shows that the utility model is located at the another kind of form micro-structural 13 of the incidence surface 11 of LGP 1 and is the form of recess 13b.Embodiment shown in Figure 9 is to have a plurality ofly perpendicular to the section of incidence surface 11 recess 13b triangular in shape in that incidence surface 11 is one-body molded, and the pitch P between the two recess 13b all equates, but the depth D of each recess 13b is to be reduced gradually toward the centre by symmetrical both sides.Embodiment shown in Figure 10 then be that the pitch P between the two recess 13b all equates, but each concave depth D is increased toward the centre gradually by symmetrical both sides.Therefore, when light passed through incidence surface 11, the recess 13b that depth D is big can form less photoresistance, and the little protrusion of depth D produces bigger photoresistance, cause from big degree of depth quantity of incident light greatlyyer, just can produce higher briliancy at LGP regional area to degree of depth recess location greatly.
Embodiment shown in Figure 11, for the depth D of each recess 13b is equal, but pitch P enlarges gradually from symmetrical both sides toward the centre.Embodiment shown in the 12 figure is the deep equality of these recesses 13b, but pitch P dwindles gradually from symmetrical both sides toward the centre.Therefore, when light passes through incidence surface 11, the recess 13b that pitch P is little forms bigger photoresistance because density is high, and the big recess of pitch P produces less photoresistance because of density is low, cause from low-density recess quantity of incident light morely, just can produce higher briliancy LGP regional area that should the low-density recess location.
Recess 13b of the present utility model except can triangular section as shown in Figure 9, the section of semicircular in shape that also can be as shown in figure 13; The recess 13b of described triangle or semicircle section can extend to relative another side (as shown in figure 16) from a side of incidence surface.Also can be semicircle sphere (as shown in figure 14) or bullet (as shown in figure 15) in the plural single form of incidence surface 11 moulding.
In addition, recess 13b of the present utility model, its pitch P and depth D are not limited to aforesaid arrangement form, but can do variation in the fabrication stage according to the actual needs of local briliancy of LGP or homogenising degree, allow the regional area of LGP obtain different light-inletting quantities and to produce specific briliancy.
The above only is in order to explain the preferred embodiment of the utility model; be not that the attempt tool is to do any formal restriction to the utility model; be with; all have in following any modification or change of making relevant the utility model of identical invention spirit, all must be included in the category of claim protection of the present utility model.
Claims (26)
1. structure that highlights LGP glorious degrees or homogenising, comprising: the incidence surface at a LGP is provided with plural micro-structural; It is characterized in that: described micro-structural is a kind of protrusion of incidence surface of outstanding this LGP, forms a pitch between two protrusions, and each protrusion has a height.
2. the structure that highlights LGP glorious degrees or homogenising according to claim 1 is characterized in that: the pitch of these protrusions all equates, but the height of each protrusion not necessarily equates.
3. the structure that highlights LGP glorious degrees or homogenising according to claim 1 is characterized in that: the height of these protrusions all equates, but each pitch not necessarily equates.
4. the structure that highlights LGP glorious degrees or homogenising according to claim 1 is characterized in that: the pitch of these protrusions with highly all not necessarily equate.
5. the structure that highlights LGP glorious degrees or homogenising according to claim 2 is characterized in that: described protrusion is to reduce height gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
6. the structure that highlights LGP glorious degrees or homogenising according to claim 2 is characterized in that: described protrusion is to increase height gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
7. the structure that highlights LGP glorious degrees or homogenising according to claim 3 is characterized in that: described protrusion is to reduce pitch gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
8. the structure that highlights LGP glorious degrees or homogenising according to claim 2 is characterized in that: described protrusion is to increase pitch gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
9. according to each described structure that highlights LGP glorious degrees or homogenising of claim 1-8, it is characterized in that: described protrusion is that the side from this incidence surface extends to another relative side.
10. the structure that highlights LGP glorious degrees or homogenising according to claim 9 is characterized in that: described protrusion is a triangle perpendicular to the section of light incident direction.
11. the structure that highlights LGP glorious degrees or homogenising according to claim 9 is characterized in that: described protrusion is semicircle perpendicular to the section of light incident direction.
12. according to each described structure that highlights LGP glorious degrees or homogenising of claim 1-8, it is characterized in that: described protrusion is a bullet.
13. according to each described structure that highlights LGP glorious degrees or homogenising of claim 1-8, it is characterized in that: described protrusion is the semicircle spheroid.
14. a structure that highlights LGP glorious degrees or homogenising comprises: the incidence surface at a LGP is provided with plural micro-structural; It is characterized in that: described micro-structural is a kind of recess that is lower than the incidence surface of this LGP, forms a pitch between two recesses, and each recess has a degree of depth.
15. the structure that highlights LGP glorious degrees or homogenising according to claim 14 is characterized in that: the pitch of these recesses all equates, but each concave depth not necessarily equates.
16. the structure that highlights LGP glorious degrees or homogenising according to claim 14 is characterized in that: these concave depth all equate, but each pitch not necessarily equates.
17. the structure that highlights LGP glorious degrees or homogenising according to claim 14 is characterized in that: the pitch of these recesses all not necessarily equates with the degree of depth.
18. the structure that highlights LGP glorious degrees or homogenising according to claim 15 is characterized in that: described recess is to reduce the degree of depth gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
19. the structure that highlights LGP glorious degrees or homogenising according to claim 15 is characterized in that: described recess is to increase the degree of depth gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
20. the structure that highlights LGP glorious degrees or homogenising according to claim 16 is characterized in that: described recess is to reduce pitch gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
21. the structure that highlights LGP glorious degrees or homogenising according to claim 15 is characterized in that: described recess is to increase pitch gradually from past centre, the both sides of symmetry in the arrangement of this incidence surface.
22. according to each described structure that highlights LGP glorious degrees or homogenising of claim 14-21, it is characterized in that: described recess is that the side from this incidence surface extends to another relative side.
23. the structure that highlights LGP glorious degrees or homogenising according to claim 22 is characterized in that: described recess is a triangle perpendicular to the section of light incident direction.
24. the structure that highlights LGP glorious degrees or homogenising according to claim 22 is characterized in that: described recess is semicircle perpendicular to the section of light incident direction.
25. according to each described structure that highlights LGP glorious degrees or homogenising of claim 14-21, it is characterized in that: described recess is the taper concave surface.
26. according to each described structure that highlights LGP glorious degrees or homogenising of claim 14-21, it is characterized in that: described recess is the semicircle sphere that is recessed into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202682315U CN201589201U (en) | 2009-11-06 | 2009-11-06 | Structure for enhancing or homogenizing brightness of light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202682315U CN201589201U (en) | 2009-11-06 | 2009-11-06 | Structure for enhancing or homogenizing brightness of light guide plate |
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| Publication Number | Publication Date |
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| CN201589201U true CN201589201U (en) | 2010-09-22 |
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| CN2009202682315U Expired - Fee Related CN201589201U (en) | 2009-11-06 | 2009-11-06 | Structure for enhancing or homogenizing brightness of light guide plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310419A (en) * | 2011-05-19 | 2012-01-11 | 友达光电股份有限公司 | Apparatus and method for forming patterned microstructures |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102588851A (en) * | 2012-03-19 | 2012-07-18 | 深圳市华星光电技术有限公司 | Lateral entering type backlight module |
| CN103244864A (en) * | 2012-02-13 | 2013-08-14 | 鑫成科技(成都)有限公司 | Backlight module |
| CN107505770A (en) * | 2017-08-24 | 2017-12-22 | 蚌埠高华电子股份有限公司 | A kind of LCM backlight light-guiding elements with sawtooth micro-structural |
| CN113241016A (en) * | 2021-06-03 | 2021-08-10 | 维沃移动通信有限公司 | Electronic device |
-
2009
- 2009-11-06 CN CN2009202682315U patent/CN201589201U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310419A (en) * | 2011-05-19 | 2012-01-11 | 友达光电股份有限公司 | Apparatus and method for forming patterned microstructures |
| CN103244864A (en) * | 2012-02-13 | 2013-08-14 | 鑫成科技(成都)有限公司 | Backlight module |
| CN102565921A (en) * | 2012-02-16 | 2012-07-11 | 深圳市华星光电技术有限公司 | Light guide plate, backlight module and liquid crystal display device |
| CN102588851A (en) * | 2012-03-19 | 2012-07-18 | 深圳市华星光电技术有限公司 | Lateral entering type backlight module |
| CN107505770A (en) * | 2017-08-24 | 2017-12-22 | 蚌埠高华电子股份有限公司 | A kind of LCM backlight light-guiding elements with sawtooth micro-structural |
| CN113241016A (en) * | 2021-06-03 | 2021-08-10 | 维沃移动通信有限公司 | Electronic device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20161106 |