CN100533187C - Optical film piece and back light module unit using same - Google Patents
Optical film piece and back light module unit using same Download PDFInfo
- Publication number
- CN100533187C CN100533187C CNB2006101463627A CN200610146362A CN100533187C CN 100533187 C CN100533187 C CN 100533187C CN B2006101463627 A CNB2006101463627 A CN B2006101463627A CN 200610146362 A CN200610146362 A CN 200610146362A CN 100533187 C CN100533187 C CN 100533187C
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- China
- Prior art keywords
- optical conductor
- strip optical
- blooming piece
- module backlight
- light source
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Abstract
The invention relates to an optics film and a back light model group applying the optics film. One of the surface of the optics film is densely distributed with strip-shaped light conductors, and parts of the strip-shaped light conductors are the strip-shaped light conductors with beeline type while parts are the strip-shaped light conductors with serial curving type so as to lead the light source can proceed the light gathering through the optics film and lead the light source after being gathered not been outputted by the complete beeline rule; besides, when being applied in the back light model group, the strip-shaped light conductors can lead the light source outputted by the back light model group not generate the phenomena of the circling irradiation of the light source without the formation of the intervening strips when irradiating into a crystal liquid panel.
Description
[technical field]
The present invention is relevant a kind of blooming piece and the module backlight used thereof, refers to especially in can making light source row optically focused effect, and makes the light source behind the optically focused no longer be the light beam exporter of comprehensive orthoscopic rule.
[background technology]
Light source by, a membrane transistor LCD (TFT-LCD) is to rely upon a module backlight (Back light Module) to be provided, this module backlight then must make the light source that provides reach all neat degree and the brilliant degree of high-quality, and the side is enough to obtain good subsequent applications effect.
Wherein, as shown in Figure 1, a module 1 backlight includes at least: a light guide plate 11, a reflection diaphragm 12, the blooming pieces 13 that do not wait for number, and, lamp source 14;
One reflection diaphragm 12 is reflecting surface 112 outsides that are flat on light guide plate 11, doing reflection and return among the light guide plate 11 leaking out the outer light sources of light guide plate 11;
The blooming piece 13 that does not wait for number is to be arranged at outside the exiting surface 113 of light guide plate 11, these blooming pieces 13 promptly have the diffusion barrier sheet (Diffusion film) 131 that can make light source do diffusion effect, and can make light source do the prism diaphragm of optically focused usefulness (Prism film) 132, and look actual required situation, and change the setting of being arranged in pairs or groups with different quantity and mutual configuration order respectively, wherein, the prism cylinder 1321 of extremely how trickle shape is gone up and is formed with on one surface of prism diaphragm 132, and these prism cylinders 1321 and line spread are on the surface of prism diaphragm 132, and be vertical each other mode with the prism cylinder 1321 in the two prism diaphragms 132 and dispose, to reach optically focused usefulness to the light source all directions;
14 in lamp source is the main source of light source, mainly is arranged at outside incidence surface 111 places of light guide plate 11, and its usage quantity is then done allotment according to commodity code requirement difference.
Again, as shown in Figure 2, developed another module 2 backlight in the recent period, this module 2 backlight includes at least: a light guide plate 21, a reflection diaphragm 22, a prism diaphragm 23, a protection diaphragm 24 and a lamp source 25;
And, can reach effective optically focused usefulness of light source because of the prism diaphragm 21 in the module 2 backlight only must use one, can effectively reduce cost, so gradually be subjected to the glad employing of relevant dealer.
Yet as shown in Figure 3, though the light source of module backlight 2 outputs is transformed into flat light source from linear light sorurce in above-mentioned, yet whole in fact light source is the effect that is subjected to prism cylinder 231 on the prism diaphragm 23, forms that a rectilinear light beam that has systematicness advances; Membrane transistor (Thin Film Transistors in other liquid crystal panel 3; TFT) 31 and colored filter (Color Filter; CF) the 32nd, for the matrix form of superfine microfacies correspondence configuration forms, so being is the rectilinear light beam that has systematicness, in case during again by the gap between each unit in membrane transistor 31 and the colored filter 32, promptly can make this light beam that passes through produce diffraction (diffraction), and be formed with interference fringe 33 on this liquid crystal panel 3.The eventually performance when destroying liquid crystal panel 3 and show.
Formation phenomenon for above-mentioned interference striped 33, when general module backlight factory finishes this module backlight in group is upright, can't learn the situation that whether has its generation, but must deliver goods to liquid crystal panel factory through organize upright after, the demonstration time side of primer fluid crystal panel can learn, so, the puzzlement that promptly often causes module factory backlight and the two side dealers of liquid crystal panel factory to cooperate, and extremely to be overcome it.
[summary of the invention]
The objective of the invention is to be to provide a kind of blooming piece, to reach the module backlight of using this blooming piece, this blooming piece can make the light source through its effect be non-systematicness light beam, when making the light source of the module backlight output of this application give liquid crystal panel, make this liquid crystal panel when showing, not have the generation of interference fringe, and the performance when being beneficial to liquid crystal panel and showing.
In order to achieve the above object, the invention provides a kind of blooming piece, have a first surface and second surface, it is characterized in that: have densely covered strip optical conductor in this first surface, and these strip optical conductors are to include partly to be listed in the top layer of this first surface with left and right sides Curved Continuous musical form strip optical conductor with orthoscopic optical conductor and part.
The present invention also provides a kind of module backlight, it is characterized in that: include at least:
One light guide plate, tool one reflecting surface, an exiting surface, and, at least one incidence surface;
One blooming piece, tool one first surface and a second surface, have densely covered strip optical conductor in this first surface, and these strip optical conductors are to include partly to be listed in the top layer of first surface with left and right sides Curved Continuous musical form strip optical conductor with orthoscopic strip optical conductor and part; This blooming piece is to be arranged on the exiting surface of light guide plate, and the first surface of blooming piece is the exiting surface that regards to light guide plate.
In sum, on the wherein surface in blooming piece of the present invention two surfaces, be densely covered with the optical conductor of strip, these strip optical conductors and part are the strip optical conductor of orthoscopic, and be the strip optical conductor of continuous bend partly, making these strip optical conductors is to be partly straight line, be the curved trend of left and right sides Curved Continuous partly, and be in the layout of on the wherein surface of blooming piece, so, penetrate light source through this blooming piece, promptly be subjected to the refraction of these strip optical conductors and reach optically focused action back bright dipping, and because of these strip optical conductors are to be partly to be straight line, partly for left and right sides Curved Continuous curved move towards layout, so the light beam that makes its effect bright dipping is exported but be the light beam that includes linearity and the curved formation of left and right sides Curved Continuous also no longer for comprehensive linear regular shape.
Use blooming piece of the present invention when a module backlight, blooming piece of the present invention is arranged on the exiting surface of light guide plate in this module backlight, on the exiting surface of this light guide plate and be formed with densely covered prismatic light conductor, and make a surface of tool strip optical conductor in the blooming piece of the present invention, regard to the exiting surface of light guide plate mutually, and the prismatic light guide body formation direction that the strip optical conductor trend that makes blooming piece is perpendicular to light guide plate disposes, the light source of this light guide plate output is from exporting behind the optically focused of the capable direction of prismatic light conductor in its exiting surface, follow-up and be subjected to again blooming piece of the present invention the capable other direction of strip optical conductor optically focused and outwards penetrate, the optically focused usefulness of all having all directions that makes that module backlight exports, and make light beam in this light source is not to be a rectilinearity light beam that has a systematicness comprehensively, include linearity and the curved light beam aspect of Curved Continuous but be, with the light source of this characteristic in by liquid crystal panel the time, producing when promptly not causing this liquid crystal panel to show has interference fringe, the performance when destroying its demonstration.
[description of drawings]
Fig. 1 is known module synoptic diagram backlight.
Fig. 2 is another known module synoptic diagram backlight.
Fig. 3 is the synoptic diagram that known die set light source backlight forms interference fringe.
Fig. 4 is the stereographic map of blooming piece of the present invention.
Fig. 5 uses blooming piece of the present invention in the synoptic diagram of a module backlight.
Fig. 6 is the synoptic diagram of Fig. 5 when being applied to liquid crystal panel.
Fig. 7 and Fig. 8 are the synoptic diagram that the strip optical conductor of blooming piece of the present invention becomes different big small sizes.
Fig. 9 to Figure 11 is the embodiment synoptic diagram that the strip optical conductor cross section different shaping of blooming piece of the present invention changes.
Figure 12 is the contoured synoptic diagram of tool height in the length that becomes of blooming piece of the present invention.
[embodiment]
For making further understanding structure of the present invention, and the effect that produces, please cooperate graphic explanation as the back now:
At first, see also shown in Figure 4, the present invention is relevant a kind of blooming piece, and the module of using backlight, wherein, this blooming piece 4 is that the good light transmissive material of tool is made, and tool one first surface 41 and a second surface 42, on this first surface 41 and the strip optical conductor 43 that gathers of tool, and these strip optical conductors 43 are to be partly to be partly to be listed in orthoscopic strip optical conductor 431 on the top layer of first surface 41 for left and right sides Curved Continuous musical form optical conductor 432.
As shown in Figure 5, when utilizing blooming piece 4 of the present invention to be installed in the module 5 backlight, this module 4 backlight at least tool one by good light transmissive material (as PMMA) made light guide plate 51, a reflector plate 52 and lamp source 53; Wherein, light guide plate 51 is tool one incidence surface 511 at least, with the light source of accepting to send from lamp source 53, and this light source is entered and to light guide plate 51 internal delivery through incidence surface 511; One reflecting surface 512, in order to light source is done reflection, and reflector plate 52 is arranged at outside the reflecting surface 512 of this light guide plate 51, doing reflection again and lead back in light guide plate 51 inside revealing light source outside reflecting surface 512; One exiting surface 513 in order to the light source of light guide plate 51 inside is outwards exported, and on this exiting surface 513 and be formed with densely covered prismatic light conductor 5131, obtains the usefulness of a direction optically focused when more making light source leave; At this moment, blooming piece 4 of the present invention is to be arranged at outside the exiting surface 513 of aforementioned middle light guide plate 51, during enforcement, and make the exiting surface 513 of first surface in the blooming piece 4 41 in the face of light guide plate 51, and strip optical conductor 43 layout paths that make blooming piece 4 be perpendicular to light guide plate 51 prismatic light conductor 5131 the formation direction and dispose, with the former optically focused of further doing other direction by the light source behind the light guide plate 51 row one direction optically focused again.So, each strip optical conductor 43 of blooming piece 4 is to utilize its two hypotenuse 433, reach the usefulness of optically focused when making light source penetrate and penetrate, wherein, through the light source of formula strip optical conductor 431 transmission bright dippings linearly, the light beam of the shape that is in line is left outside the blooming piece 4 of the present invention, and, then will become the curved light beam of Curved Continuous to leave outside the blooming piece 4 of the present invention through being the light source of left and right sides Curved Continuous musical form strip optical conductor 432 transmission bright dippings; So, even in the light source after blooming piece 4 effects of the present invention, the consistance that still keeps light source to advance in vertical direction, reach the usefulness of light source optically focused, and will be not only in this light source the linearly light beam of only single tool, have partly for linearly light beam and partly be the curved light beam of Curved Continuous but be.
Please cooperate shown in Figure 6 again, device has the module backlight 5 of blooming piece 4 of the present invention when it is applied to a liquid crystal panel 6, because of the do usefulness of the light source in the module 5 backlight through blooming piece 4 of the present invention, and the light source that makes its output is to include linearity light beam and the curved light beam of Curved Continuous, so when this light source during by membrane transistor 61 in the liquid crystal panel 6 and colored filter 62, though the former gap that has extremely regular shape to distribute that is in each unit of this membrane transistor 61 and each unit of colored filter 62 is because of the light beam of the non-single rectilinearity rule of light source shape; So this light source unlikely generation diffraction during, and do not have the formation of interference fringe, reach best performance when this crystalline substance liquid level plate 6 is shown by these gaps.
Again, second surface 42 in the blooming piece 4 of the present invention more can make it to be roughening, when making light source after its first surface 41 row optically focused actions, can make the roughening of this light source again by second surface 42, and make this light source obtain the effect of homogenize, and can reduce use as diffusion barrier sheet in the tradition, reduce its cost.
And, as shown in Figure 7, having more preferable application for making blooming piece 4 of the present invention, in the strip optical conductor 43 of blooming piece 4 of the present invention, linearly the volume of the strip optical conductor 431 of formula can be greater than the strip optical conductor 432 that is left and right sides Curved Continuous musical form; Or as shown in Figure 8, linearly the volume of the strip optical conductor 431 of formula is less than the strip optical conductor 432 that is left and right sides Curved Continuous musical form, and make strip optical conductor 43 be formed with each other different distances again, and make each light beam in the light source after its effect produce the situation of unequal-interval, and utilization has the light source of unequal-interval light beam, even during the gap of the extremely regular shape by membrane transistor 61 in the liquid crystal panel 6 and colored filter 62, also can destroy the cooperation of its systematicness, and do not cause light source to produce diffraction, help avoid the formation of interference fringe.
Or as shown in Figure 9,434 one-tenth of the top ends of strip optical conductor 43 are to these strip optical conductor 43 internal recess shapes in blooming piece 4 of the present invention, make and wear the light source penetrated after its effect, divide again in each light beam the littler light beam of spacing is arranged into, also must make the spacing between each light beam no longer be single systematicness, utilize the light source of the non-single rule shape of this kind of tool light beam, during the gap of the extremely regular shape by 61 colored filters 62 of membrane transistor in the liquid crystal panel 6, also can destroy the cooperation of its systematicness, produce the diffraction phenomenon and light source is unlikely, the formation of interference fringe is arranged when avoiding liquid crystal panel 6 to show.
Or as shown in figure 10, in the strip optical conductor 43 of blooming piece 4 of the present invention, can make its two hypotenuse 433 be not reciprocity angle of inclination shape, make light source with the not reciprocity refraction angle of generation, and make in the light source after this effect, the phenomenon that partly presents proliferation is arranged in each light beam, form the shape of different strong and weak luminous energies; Or as shown in figure 11, a wherein hypotenuse 433 of two hypotenuses 433 in this strip optical conductor 43, the person that makes it to become the arc-curved shape, also can make light source through effect, utilization is hypotenuse 433 positions of arc-curved shape, does stronger optically focused and exports, and promptly contains the shape that becomes to have strong and weak different luminous energy in this each light beam and make; Become to have the differ shape of luminous energy of power in each light beam, when also making extremely regular shape gap by membrane transistor 61 in the liquid crystal panel 6 and colored filter 62, destroy the cooperation that it becomes regular shape, make the unlikely generation diffraction of light source phenomenon, and the formation of interference fringe when avoiding liquid crystal panel 6 to show.
From the various embodiments described above, suffice to show that the light source after blooming piece 4 effects of the present invention, provide when giving liquid crystal panel 6 demonstrations, can effectively avoid the formation of interference fringe, and as shown in figure 12, if further make the strip optical conductor 43 of blooming piece 4 of the present invention, in its formed length, make it highly become wavy that tool just rises and falls, make light source different high and low position bright dippings in this strip optical conductor 4, being when promptly forming in this each beam length corresponding to liquid crystal panel 6 has nearer and larger distance, and be bordering on liquid crystal panel 6 apart from the time luminous energy, when relatively be distal to liquid crystal panel 6 apart from the time luminous energy comparatively strong, be strong and weak aspect at interval to have luminous energy in this beam length again, when penetrating in liquid crystal panel 6, can further promote the requirement of the randomization light source of desiring to reach again, and make light source produce the possibility of diffraction phenomenon again for reducing the formation of more being stopped interference fringe 33.
In sum, blooming piece of the present invention can make light source really after its effect, and producing irregular light beam provides and give liquid crystal panel and use, and the unlikely interference fringe that is formed with, the usability of this industry of tool when making this liquid crystal panel demonstration.
[main element symbol description]
1 backlight module, 11 LGPs, 111 incidence surfaces
112 reflectings surface, 1121 light guiding points
113 exiting surfaces
12 reflection diaphragms
13 blooming pieces, 131 diffusion barrier sheets
132 prism diaphragms, 1321 prism cylinders
14 lamp sources
2 backlight modules, 21 LGPs, 211 incidence surfaces
212 reflectings surface, 213 exiting surfaces
22 reflection diaphragms
23 prism diaphragms, 231 prism cylinders
2131 prism cylinders
24 protection diaphragms
25 lamp sources
3 liquid crystal panels, 31 membrane transistors
32 colored filters
33 interference fringes
4 blooming pieces, 41 first surfaces
42 second surfaces
43 strip optical conductors
431 orthoscopic strip optical conductors
432 left and right sides Curved Continuous musical form strip optical conductors
433 hypotenuses, 434 top ends
5 module 51 light guide plate 511 incidence surfaces backlight
512 reflectings surface, 513 exiting surfaces
5131 prismatic light conductors
52 reflector plates
53 lamp sources
6 liquid crystal panels, 61 membrane transistors
62 colored filters
Claims (18)
1. blooming piece, have a first surface and a second surface, it is characterized in that: have densely covered strip optical conductor in this first surface, and the part in the described strip optical conductor for linearly formula strip optical conductor and remainder for being left and right sides Curved Continuous musical form strip optical conductor, described linearly formula strip optical conductor and be left and right sides Curved Continuous musical form strip optical conductor and be listed in the top layer of this first surface.
2. blooming piece as claimed in claim 1 is characterized in that: in the described strip optical conductor linearly the volume of formula strip optical conductor greater than the volume that is left and right sides Curved Continuous musical form strip optical conductor.
3. blooming piece as claimed in claim 1 is characterized in that: in the described strip optical conductor linearly the volume of formula strip optical conductor less than the volume that is left and right sides Curved Continuous musical form strip optical conductor.
4. blooming piece as claimed in claim 1 is characterized in that: the top ends Cheng Xiangqi internal recess shape of described strip optical conductor.
5. blooming piece as claimed in claim 1 is characterized in that: two hypotenuses of described strip optical conductor become not reciprocity angle of inclination.
6. blooming piece as claimed in claim 1 is characterized in that: a wherein hypotenuse of two hypotenuses becomes arc-curved shape in the described strip optical conductor.
7. as claim 1,2,3,4,5 or 6 described blooming pieces, it is characterized in that: in the length that this strip optical conductor is become, it highly becomes the wavy of height fluctuating.
8. blooming piece as claimed in claim 1 is characterized in that: the second surface of this blooming piece is a uneven surface.
9. module backlight is characterized in that: comprise:
One light guide plate, tool one reflecting surface, an exiting surface and at least one incidence surface;
One blooming piece, tool one first surface and a second surface, has densely covered strip optical conductor in this first surface, and the part in the described strip optical conductor for linearly formula strip optical conductor and remainder for being left and right sides Curved Continuous musical form strip optical conductor, described linearly formula strip optical conductor and be left and right sides Curved Continuous musical form strip optical conductor and be listed in the top layer of first surface; This blooming piece is arranged on the exiting surface of light guide plate, and the first surface of blooming piece is in the face of the bright dipping song of light guide plate.
10. module backlight as claimed in claim 9 is characterized in that: in the described strip optical conductor linearly the volume of formula strip optical conductor greater than the volume that is left and right sides Curved Continuous musical form strip optical conductor.
11. module backlight as claimed in claim 9 is characterized in that: in the described strip optical conductor linearly the volume of formula strip optical conductor less than the volume that is left and right sides Curved Continuous musical form strip optical conductor.
12. module backlight as claimed in claim 9 is characterized in that: the top ends Cheng Xiangqi internal recess shape of the strip optical conductor of blooming piece in this module backlight.
13. module backlight as claimed in claim 9 is characterized in that: two hypotenuses of the strip optical conductor of blooming piece become not reciprocity angle of inclination in this module backlight.
14. module backlight as claimed in claim 9 is characterized in that: in this module backlight in the strip optical conductor of blooming piece a wherein hypotenuse of two hypotenuses become arc-curved shape.
15. as claim 9,10,11,12,13 or 14 described modules backlight, it is characterized in that: in the length that the strip optical conductor of blooming piece is become in this module backlight, it highly becomes the wavy of height fluctuating.
16. module backlight as claimed in claim 9 is characterized in that: the second surface of blooming piece is a uneven surface in this module backlight.
17. module backlight as claimed in claim 9 is characterized in that: have densely covered prismatic light conductor in this module backlight on the exiting surface of light guide plate.
18. module backlight as claimed in claim 17 is characterized in that: the prismatic light conductor of light guide plate exiting surface extends to form the layout path of direction perpendicular to the strip optical conductor of blooming piece in this module backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101463627A CN100533187C (en) | 2006-11-10 | 2006-11-10 | Optical film piece and back light module unit using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101463627A CN100533187C (en) | 2006-11-10 | 2006-11-10 | Optical film piece and back light module unit using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101178457A CN101178457A (en) | 2008-05-14 |
| CN100533187C true CN100533187C (en) | 2009-08-26 |
Family
ID=39404782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101463627A Expired - Fee Related CN100533187C (en) | 2006-11-10 | 2006-11-10 | Optical film piece and back light module unit using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100533187C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9182530B2 (en) | 2010-05-31 | 2015-11-10 | Dai Nippon Printing Co., Ltd. | Light guide plate with tapering unit optical elements |
| CN106200125A (en) * | 2016-09-07 | 2016-12-07 | 惠州Tcl移动通信有限公司 | Showing module and configuring the electronic equipment of this display module without backlight module |
-
2006
- 2006-11-10 CN CNB2006101463627A patent/CN100533187C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101178457A (en) | 2008-05-14 |
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| PB01 | Publication | ||
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Granted publication date: 20090826 Termination date: 20111110 |