CN106353851A - Side light-emitting optical fiber with openings at side end and manufacturing method thereof as well as backlight module - Google Patents

Side light-emitting optical fiber with openings at side end and manufacturing method thereof as well as backlight module Download PDF

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Publication number
CN106353851A
CN106353851A CN201610914690.0A CN201610914690A CN106353851A CN 106353851 A CN106353851 A CN 106353851A CN 201610914690 A CN201610914690 A CN 201610914690A CN 106353851 A CN106353851 A CN 106353851A
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CN
China
Prior art keywords
optical fiber
light leak
leak mouth
mouth
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610914690.0A
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Chinese (zh)
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CN106353851B (en
Inventor
张贺
赵致童
邹永刚
徐英添
赵鑫
金亮
李洋
徐莉
马晓辉
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Changchun Sai Hi-tech Co.,Ltd.
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Changchun University of Science and Technology
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Priority to CN201610914690.0A priority Critical patent/CN106353851B/en
Publication of CN106353851A publication Critical patent/CN106353851A/en
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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02Optical fibres with cladding with or without a coating
    • G02B6/02295Microstructured optical fibre
    • G02B6/02314Plurality of longitudinal structures extending along optical fibre axis, e.g. holes
    • G02B6/02319Plurality of longitudinal structures extending along optical fibre axis, e.g. holes characterised by core or core-cladding interface features
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side

Abstract

The invention discloses a side light-emitting optical fiber with openings at a side end and a manufacturing method thereof as well as a backlight module. The side light-emitting optical fiber with opening at the side end comprises: an optical fiber body, a baffle and an opening groove, wherein a plurality of groups of main light leakage holes and a plurality of groups of auxiliary light leakage holes, which are distributed linearly, are formed in a core diameter; the main light leakage holes and the auxiliary light leakage holes are distributed in a staggered manner; the auxiliary light leakage holes are used for adjusting the illumination intensity of the main light leakage holes and tail light so as to enable the illumination intensity of whole light leakage on the optical fiber body to be uniform; the baffle is fixed at the tail end of the optical fiber body and an included angle is formed between the baffle and the core diameter of the optical fiber body; the opening groove sleeves an outer side of the optical fiber body; an opening side of the opening groove corresponds to the main light leakage holes and the auxiliary light leakage holes; an edge side of the opening groove is further connected with the baffle. By adopting the side light-emitting optical fiber with opening at the side end, the brightness of a light source can be adjusted, and the side light-emitting optical fiber is high in color saturation degree, simple in structure and convenient to use. Meanwhile, when a large-power laser device is used, a heat dissipation problem can be solved very well under the condition that the size of the backlight module is not increased.

Description

A kind of side opening lateral body emitting optical fiber, its manufacture method and backlight module
Technical field
The present invention relates to the back light model setting technology field of liquid crystal display, more particularly, to a kind of side opening lateral body lights light Fibre, its manufacture method and backlight module.
Background technology
Liquid crystal indicator is not lighted due to liquid crystal panel itself, needs the support of corresponding backlight module.Prior art In, the light source in backlight module is mainly cathode fluorescent tube (ccfl) and light emitting diode (led).
With the progress in epoch, liquid crystal display module positive the direction that size is big, thickness of thin, color saturation are high develop, For making liquid crystal display have higher color saturation, people are allowed to have abundant visual experience, in recent years, laser is as a kind of back of the body Light source is introduced in lcd technology.Current laser backlight, is broadly divided into two kinds, and the cooperation of first blue chip is glimmering Light powder lights, the liquid crystal display joined with this backlight tower, and its colour gamut is typically smaller than 100%ntsc standard color gamut;It two is The form of rgb trichroism laser mixed light, if being simply substituted in existing backlight module in this form, is necessary for applying multiple Light unit and complicated collimating and beam expanding system, if big panel will be made, heat dissipation capacity also can increase, and certainly will increase the body of module Long-pending.
Content of the invention
Present invention is primarily targeted at providing a kind of side opening lateral body emitting optical fiber, its manufacture method and backlight mould Group, color saturation is high, good heat dissipation effect and structure is simple, easy to use.
To achieve these goals, the present invention provides a kind of side opening lateral body emitting optical fiber, comprising:
Optical fiber body, core diameter offers the multigroup main light leak mouth of lineal layout and multigroup auxiliary light leak mouth, described main leakage Optical port and auxiliary light leak mouth are interspersed, and described auxiliary light leak mouth is used for adjusting the illumination of described main light leak mouth and tail light, makes institute The illumination stating overall light leak on optical fiber body is all neat;
Baffle plate, is fixed on the end of described optical fiber body, and described baffle plate is had angle with the core diameter shape of described optical fiber body;
Opening type groove, is set in the outside of described smooth pricker body, the open side of described opening type groove and described main light leak mouth Corresponding with auxiliary light leak mouth, and the avris of described opening type groove is also connected with described baffle plate.
According to a preferred embodiment of the invention: the described medial wall of opening type groove and the medial wall of baffle plate are provided with increasing instead Film.
According to a preferred embodiment of the invention: described baffle plate is 45 ° with the core diameter angle of described optical fiber body.
The present invention also provides a kind of manufacture method of side opening lateral body emitting optical fiber, and it comprises the following steps:
S1, the opening depth opening up multigroup main light leak mouth, adjusting every group of main light leak mouth being spaced on the core diameter of optical fiber body Degree, makes the light leak illumination of multigroup described main light leak mouth all neat;
S2, alternately open up auxiliary light leak mouth between described main light leak mouth, the opening adjusting every group of auxiliary light leak mouth is deep Degree, makes overall light leak illumination on described optical fiber body all neat;
S3, add baffle plate in the end of described optical fiber body, and in optical fiber body exterior sheathed opening type groove, wherein, institute The open side stating opening type groove is corresponding with described main light leak mouth and auxiliary light leak mouth.
According to a preferred embodiment of the invention: the end tail light of described optical fiber body is more than described main light leak mouth and described The light leak illumination of auxiliary light leak mouth.
According to a preferred embodiment of the invention: the quantity of described main light leak mouth and described auxiliary light leak mouth is 5 groups and 6 Group.
The present invention also provides a kind of backlight module, and it includes above-mentioned side opening lateral body emitting optical fiber, also includes leaded light Plate and outside LASER Light Source, described LASER Light Source is connected with described side opening lateral body emitting optical fiber, described side opening The light leak side of lateral body emitting optical fiber is corresponding with described light guide plate.
According to a preferred embodiment of the invention: also include housing, described side opening lateral body emitting optical fiber and light guide plate It is each attached on described housing.
According to a preferred embodiment of the invention: described LASER Light Source is quasiconductor white light LASER Light Source.
The beneficial effects of the present invention is: by main light leak mouth and auxiliary light leak mouth are opened up on optical fiber body, change master The opening depth of light leak mouth and auxiliary light leak mouth can change the light leak illumination of optical fiber body, such that it is able to realize light-source brightness Adjustment, its color saturation is high, structure is simple and easy to use.Meanwhile, recycle the cooperation of this side opening lateral body emitting optical fiber outer The LASER Light Source put as backlight module light source module so as to when using high power laser, not increase backlight module body On the premise of long-pending, heat dissipation problem can be solved well.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the side opening lateral body emitting optical fiber of the present invention;
Fig. 2 is the main light leak mouth of side opening lateral body emitting optical fiber of the present invention and the structural representation of auxiliary light leak mouth;
Fig. 3 is the side opening design sketch of the side opening lateral body emitting optical fiber of the present invention;
Fig. 4 is the method flow diagram of the manufacture method of side opening lateral body emitting optical fiber of the present invention;
Fig. 5 is the structural representation of the backlight module of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the preferred embodiments of the present invention are described in detail, so that advantages and features of the invention energy It is easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention is made apparent clearly defining.
Refering to shown in Fig. 1-2, the side opening lateral body emitting optical fiber of the present invention, comprising:
Optical fiber body 1, core diameter offers the multigroup main light leak mouth 2 of lineal layout and multigroup auxiliary light leak mouth 3, main light leak Mouth 2 and auxiliary light leak mouth 3 are interspersed, and auxiliary light leak mouth 3 is used for adjusting the illumination of main light leak mouth 2 and tail light, makes optical fiber body 1 The illumination of upper overall light leak is all neat;The difference of the main light leak mouth 2 in the present embodiment and auxiliary light leak mouth 3 is: main light leak mouth 2 is made For main light leak area, its light leak illumination is more than the light leak illumination of auxiliary light leak mouth 3.
Baffle plate 4, is fixed on the end of optical fiber body 1, and baffle plate 4 is mainly used in the tail light (phase of the end of mirror based fiber optica body 1 When in another auxiliary light leak mouth 3), increase the sidelight illumination of optical fiber body 1, wherein, baffle plate 4 is formed with the core diameter of optical fiber body 1 One angle;In order to play the reflecting effect with other auxiliary light leak mouth 3 equal illuminations, the core diameter angle of baffle plate 4 and optical fiber body 1 For 45 °, according to the difference of main light leak mouth 2 and auxiliary light leak mouth 3 spacing, baffle plate 4 with the core diameter angle of optical fiber body 1 can also be Other proper angle.
Opening type groove 5, is set in the outside of light pricker body 1, the open side of opening type groove 5 and main light leak mouth 2 and auxiliary leakage Optical port 3 is corresponding, and the avris of opening type groove 5 is also connected with baffle plate 4.The opening of opening type groove 5 and main light leak mouth 2 and auxiliary Light leak mouth 3 cooperatively form stable sidelight, thus for backlight module provide light source.
Preferably, the medial wall of the medial wall of opening type groove 5 and baffle plate 4 is provided with Anti-reflective coating.Can by arranging Anti-reflective coating To strengthen reflecting effect, improve the illumination of light leak further.
Refering to shown in Fig. 3, in one embodiment of the invention it is assumed that being 271 watts using the power of LASER Light Source 7, a, B, c, d, e respectively correspond to optical fiber body 1 on 5 at main light leak mouth 2;G, h, i, j, k respectively correspond to optical fiber body 1 on 5 at auxiliary Help light leak mouth 3;F is the light of baffle plate 4 reflection, and the light field luminance highest value at main light leak mouth 2 at 5 is all in 150000 ± 5%w/ Interior, its all neat degree meets the light source requirements of backlight module.Specifically, the detailed specification of each side opening is as shown in table 1:
Table 1
From table 1 combine accompanying drawing 3 it can be seen that main light leak mouth 2 and auxiliary light leak mouth 3 the identical (the present embodiment of opening radius In be 150 microns, expand or shrink opening radius also dependent on actual demand), consider optical fiber body 1 in light with main leakage In the case that optical port 2 opens up successively with auxiliary light leak mouth 3 and gradually decays, by the reasonable opening changing each group main light leak mouth 2 The opening depth of depth and auxiliary light leak mouth 3 just can ensure that overall light leak illumination is all neat.
Refering to shown in Fig. 4, the manufacture method of the side opening lateral body emitting optical fiber of the present invention, it comprises the following steps:
S1, the opening opening up multigroup main light leak mouth 2, adjusting every group of main light leak mouth 2 being spaced on the core diameter of optical fiber body 1 Depth, makes the light leak illumination of multigroup main light leak mouth 2 all neat;
S2, alternately open up auxiliary light leak mouth 3 between main light leak mouth 2, the opening adjusting every group of auxiliary light leak mouth 3 is deep Degree, makes overall light leak illumination on optical fiber body 1 all neat;Wherein, can also each main light leak mouth 2 of fine tuning again, finally can reach The all neat purpose of overall light leak illumination on optical fiber body 1, thus the light source requirements of backlight module can be met.
S3, add baffle plate 4 in the end of optical fiber body 1, and in the outside sheathed open-type groove 5 of optical fiber body 1, wherein, open The open side of shape of the mouth as one speaks groove 5 is corresponding with main light leak mouth 2 and auxiliary light leak mouth 3.
Preferably, the end tail light of optical fiber body 1 is more than main light leak mouth 2 and the light leak illumination of auxiliary light leak mouth 3, so may be used The all neat illumination of light leak is not reached it is impossible to meet the light source requirements of backlight module with the end tail illuminance avoiding optical fiber body 1.
Preferably, the quantity of main light leak mouth 2 and auxiliary light leak mouth 3 is 5 groups and 6 groups.One of auxiliary light leak mouth 3 is gear The end tail light of the optical fiber body 1 of plate 4 reflection.
Refering to shown in Fig. 5, the backlight module of the present invention, it includes above-mentioned side opening lateral body emitting optical fiber, also includes Light guide plate 6 and outside LASER Light Source 7, LASER Light Source 7 is connected with side opening lateral body emitting optical fiber, and side opening lateral body is sent out The light leak side of light optical fiber is corresponding with light guide plate 6.In the embodiment of the present invention, this backlight module also includes housing 8, side open side Body emitting optical fiber and light guide plate 6 are each attached on housing 8.Side opening lateral body emitting optical fiber and light guide plate 6 so can be made Positional structure is more stable.Preferably, LASER Light Source 7 is quasiconductor white light LASER Light Source.
In sum, it is an advantage of the current invention that:
By main light leak mouth 2 and auxiliary light leak mouth 3 are opened up on optical fiber body 1, change main light leak mouth 2 and auxiliary light leak mouth 3 opening depth can change the light leak illumination of optical fiber body 1, such that it is able to realize the adjustment of light-source brightness, its color saturation High, structure is simple and easy to use.Meanwhile, the LASER Light Source 7 recycling the cooperation of this side opening lateral body emitting optical fiber external is made Light source module for backlight module is so as to when using high power laser, on the premise of not increasing backlight module volume, energy is good Solve heat dissipation problem well.
More than, the specific embodiment of the only present invention, but protection scope of the present invention is not limited thereto, any without Cross the change or replacement that creative work is expected, all should be included within the scope of the present invention.Therefore, the protection of the present invention Scope should be defined by the protection domain that claims are limited.

Claims (9)

1. a kind of side opening lateral body emitting optical fiber is it is characterised in that include:
Optical fiber body, core diameter offers the multigroup main light leak mouth of lineal layout and multigroup auxiliary light leak mouth, described main light leak mouth It is interspersed with auxiliary light leak mouth, described auxiliary light leak mouth is used for adjusting the illumination of described main light leak mouth and tail light, makes described light On fine body, the illumination of overall light leak is all neat;
Baffle plate, is fixed on the end of described optical fiber body, and described baffle plate is had angle with the core diameter shape of described optical fiber body;
Opening type groove, is set in the outside of described smooth pricker body, the open side of described opening type groove and described main light leak mouth and auxiliary Help light leak mouth corresponding, and the avris of described opening type groove is also connected with described baffle plate.
2. side opening lateral body emitting optical fiber as claimed in claim 1 it is characterised in that the medial wall of described opening type groove and The medial wall of baffle plate is provided with Anti-reflective coating.
3. side opening lateral body emitting optical fiber as claimed in claim 2 is it is characterised in that described baffle plate and described optical fiber body Core diameter angle be 45 °.
4. a kind of manufacture method of side opening lateral body emitting optical fiber is it is characterised in that comprise the following steps:
S1, the opening depth opening up multigroup main light leak mouth, adjusting every group of main light leak mouth being spaced on the core diameter of optical fiber body, make The light leak illumination of multigroup described main light leak mouth is all neat;
S2, between described main light leak mouth alternately open up auxiliary light leak mouth, adjust every group auxiliary light leak mouth opening depth, make On described optical fiber body, overall light leak illumination is all neat;
S3, add baffle plate in the end of described optical fiber body, and in optical fiber body exterior sheathed opening type groove, wherein, described open The open side of shape of the mouth as one speaks groove is corresponding with described main light leak mouth and auxiliary light leak mouth.
5. the manufacture method of side opening lateral body emitting optical fiber as claimed in claim 4 is it is characterised in that described optical fiber body End tail light be more than the light leak illumination of described main light leak mouth and described auxiliary light leak mouth.
6. the manufacture method of the side opening lateral body emitting optical fiber as described in claim 4 or 5 is it is characterised in that described main leakage The quantity of optical port and described auxiliary light leak mouth is 5 groups and 6 groups.
7. a kind of backlight module is it is characterised in that include the luminous light of side opening lateral body as described in any one of claim 1-3 Fibre, also includes light guide plate and outside LASER Light Source, and described LASER Light Source is connected with described side opening lateral body emitting optical fiber, The light leak side of described side opening lateral body emitting optical fiber is corresponding with described light guide plate.
8. backlight module as claimed in claim 7 is it is characterised in that also include housing, and described side opening lateral body lights light Fine and light guide plate is each attached on described housing.
9. backlight module as claimed in claim 7 or 8 is it is characterised in that described LASER Light Source is quasiconductor white light laser light Source.
CN201610914690.0A 2016-10-20 2016-10-20 A kind of side opening lateral body emitting optical fiber, its manufacturing method and backlight module Active CN106353851B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101440919A (en) * 2008-12-18 2009-05-27 上海广电光电子有限公司 Side input type backlight module unit
CN101666462A (en) * 2008-09-03 2010-03-10 先进开发光电股份有限公司 Edge-lighting backlight module and light guide element and linear light source thereof
CN102734694A (en) * 2011-04-15 2012-10-17 宏碁股份有限公司 Backlight module
CN103133939A (en) * 2011-11-30 2013-06-05 展晶科技(深圳)有限公司 Light source structure of backlight module
CN103235358A (en) * 2013-04-27 2013-08-07 北京牡丹视源电子有限责任公司 Light guide bar and linear light source device manufactured with same
CN103335273A (en) * 2013-07-10 2013-10-02 深圳市华星光电技术有限公司 Liquid crystal displayer and backlight module thereof
EP3078904A1 (en) * 2015-04-08 2016-10-12 Furukawa Electric Co., Ltd. Linear light guide, linear light guide structure, planar light guide structure, and illuminating device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666462A (en) * 2008-09-03 2010-03-10 先进开发光电股份有限公司 Edge-lighting backlight module and light guide element and linear light source thereof
CN101440919A (en) * 2008-12-18 2009-05-27 上海广电光电子有限公司 Side input type backlight module unit
CN102734694A (en) * 2011-04-15 2012-10-17 宏碁股份有限公司 Backlight module
CN103133939A (en) * 2011-11-30 2013-06-05 展晶科技(深圳)有限公司 Light source structure of backlight module
CN103235358A (en) * 2013-04-27 2013-08-07 北京牡丹视源电子有限责任公司 Light guide bar and linear light source device manufactured with same
CN103335273A (en) * 2013-07-10 2013-10-02 深圳市华星光电技术有限公司 Liquid crystal displayer and backlight module thereof
EP3078904A1 (en) * 2015-04-08 2016-10-12 Furukawa Electric Co., Ltd. Linear light guide, linear light guide structure, planar light guide structure, and illuminating device

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Address before: Room 908, block B, science and technology building, Changchun University of technology, No. 7186, Weixing Road, Chaoyang District, Changchun City, Jilin Province

Patentee before: Changchun University of Science and Technology Asset Management Co.,Ltd.