CN105650598A - Lens and backlight module with lens - Google Patents

Lens and backlight module with lens Download PDF

Info

Publication number
CN105650598A
CN105650598A CN201610025009.7A CN201610025009A CN105650598A CN 105650598 A CN105650598 A CN 105650598A CN 201610025009 A CN201610025009 A CN 201610025009A CN 105650598 A CN105650598 A CN 105650598A
Authority
CN
China
Prior art keywords
lens
lamp bar
incidence
exit facet
backlight module
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.)
Pending
Application number
CN201610025009.7A
Other languages
Chinese (zh)
Inventor
章奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO ZHENGTE OPTICAL ELECTRIC APPLIANCE CO Ltd
Original Assignee
NINGBO ZHENGTE OPTICAL ELECTRIC APPLIANCE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NINGBO ZHENGTE OPTICAL ELECTRIC APPLIANCE CO Ltd filed Critical NINGBO ZHENGTE OPTICAL ELECTRIC APPLIANCE CO Ltd
Priority to CN201610025009.7A priority Critical patent/CN105650598A/en
Publication of CN105650598A publication Critical patent/CN105650598A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources

Abstract

The invention discloses a lens and a backlight module with the lens. The lens comprises a lens body. An optical surface of the lens body comprises an incident surface on the inner side, an exit surface on the outer side and a reflecting surface at the top. The bottom end of the incident surface is connected with the bottom end of the exit surface through a bottom surface. The incident surface is formed by connecting a lateral incident surface body, a conical incident surface body and a curved incident surface body. The exit surface is formed by connecting a curved fully reflecting surface, a conical exit surface body and a curved exit surface body. Reflecting rings are arranged on the bottom surface so as to reduce the influence of Fresnel reflection. The backlight module comprises a backlight cavity, a lamp bar mounted at the bottom of the cavity and reflecting paper mounted on the lamp bar. The lamp bar is of a strip-shaped structure uniform in width. According to the LED lens and the backlight module with the LED lens, overall light spots and color spots can be uniform, the light emitting efficiency is greatly improved, and meanwhile, the number and thickness of LED light sources of the backlight module can be reduced, so that design of low energy consumption and super thinning is achieved.

Description

A kind of lens and there is the backlight module of these lens
Technical field
The present invention relates to a kind of lens and there is the backlight module of these lens, be specifically related to a kind of LED light-distribution lens and be furnished with the backlight module of this LED light-distribution lens.
Background technology
LED, as a kind of efficient, energy-conservation lighting source, is widely used in various lighting field. the characteristics of luminescence due to LED light source, practical LED light source is mostly point source characteristic, and limited brightness less relative to the light distribution area of light source center, at present mostly by common beam angle LED light source solid matter to reduce the light mixing distance of LED light source, reduce the thickness of backlight module, it is achieved ultrathin designs. which results in current backlight assembly and can include tens even hundreds of point source or LED. along with the quantity of point source or LED increases, the quantity of PCB and size increase, module power consumption significantly raises, LED-backlit module is dispelled the heat, driving brings adverse influence, also substantially increase manufacturing cost simultaneously, furthermore, although lasting a long time and power saving of LED light source itself, but drive the life-span of element and power consumption often not to catch up with needs, its result is that bulk life time is partially short and whole power consumption is bigger than normal, especially number of elements is driven to be multiplied, causing probability of failure is that geometrical progression increases, integrated cost significantly increases, the reason place of namely usually said " power saving does not save money ".
Therefore, need LED light source is carried out secondary optical design, including providing a kind of lens, increase the uniformity of its light utilization efficiency and brightness, under ensureing the premise of performance not reducing the backlight module with these lens, reduce LED light source quantity and the thickness of backlight module, thus realizing low energy consumption and ultrathin design.
The light-distribution lens of prior art is all many-sided deficiencies owing to lens arrangement exists, cause light projection directivity and the uniformity all Shortcomings parts later, such as application number is 201310164461.8, name is called the Chinese patent of " light-distribution lens, light-distribution lens module and LED electricity-saving lamp ", disclosing a kind of lens, its upper surface is shaped as the shape of a saddle; Its upper surface is connected by more piece smooth surface and forms rough curved surface, forms rough curved surface in this more piece smooth surface between two adjacent sections smooth surface; Described light-distribution lens bottom center has a groove for placing LED light source.The upper surface of this lens is shaped as the shape of a saddle, but owing to the architectural feature of saddle camber is, it is along Y-Z to for parabola shaped, it is along X-Y to being then hyperbola, each quite big to architectural difference, each guide light difference must be caused, it is impossible to reach circumference printing opacity balanced, also cannot ensure that light is totally balanced soft.
Summary of the invention
It is an object of the invention to, there is provided a kind of for LED light-distribution lens and the backlight module with this LED light-distribution lens, the light extraction efficiency that can make entirety is significantly enhanced and light equilibrium is soft, can reduce LED light source quantity and the thickness of backlight module simultaneously, it is achieved low energy consumption and ultrathin design.
It is an object of the invention to be achieved through the following technical solutions: a kind of lens, described lens are rotation body structure, and its minute surface includes the plane of incidence of inner side, the exit facet in outside and top reflective face, and the bottom of the plane of incidence is connected with the bottom of exit facet by bottom surface;
The described plane of incidence is connected and composed by incident sideways face, the conical surface plane of incidence and the curved surface plane of incidence;
Using the intersection point of described bottom surface and central shaft Z as datum mark, if any point connected on the curved surface plane of incidence and the straight line of datum mark are �� with the angle of central shaft Z1, on the curved surface plane of incidence, any point is R with the distance of datum mark1(��1), the bus of the curved surface plane of incidence is expressed as:
R 1 ( θ 1 ) = Σ n = 1 8 a n · exp [ - ( θ 1 - b n / c n ) 2 ] , Wherein an��bn��cnFor conic constant;
As 0 < ��1During < ��/9, R1(��1) along with ��1Increase and monotone decreasing;
As ��/9 < ��1During < ��/3, R1(��1) along with ��1Increase and monotonic increase;
Described exit facet is connected and composed by curved face total reflection face, conical surface exit facet and curved surface exit facet, if any point connected on curved surface exit facet and the straight line of described datum mark are �� with the angle of central shaft2, on curved surface exit facet, any point is R with the distance of datum mark2(��2), the bus of curved surface exit facet is expressed as:
R 2 ( &theta; 2 ) = &Sigma; n = 1 8 a n &CenterDot; exp &lsqb; - ( &theta; 2 - b n / c n ) 2 &rsqb; , Wherein an��bn��cnFor conic constant;
As 0 < ��2During < ��/3, R2(��2) along with ��2Increase and monotonic increase.
As preferably, described bottom surface is provided with tore of reflection. Bottom surface there is tore of reflection can reduce the impact of Fresnel reflection.
As preferably, the number of described tore of reflection is 1-6, and tore of reflection is the structure of circular arc or cone.
As preferably, the bottom surface of lens is evenly equipped with several lens suspension columns, and support is the structure of square column type or cylinder, and lens suspension column is positioned at the inside line of tore of reflection. Support connects for lens and substrate are fixing, and has location and the effect at alignment LED light source center concurrently.
As preferably, one group of alignment recess is uniform 3, and corresponding lens suspension column is 3 and uniform.
The present invention also proposes a kind of backlight module, described backlight module includes backlight cavity, it is arranged on the lamp bar of cavity bottom, it is arranged on the reflecting paper on lamp bar, lamp bar is the strip structure of even width, and lamp bar is fixed on backlight cavity base plate in parallel to each other, and lamp bar is fixed several LED light sources, and there are multiple lens structured as described above, lens are fixed on above LED light source one to one and fix with lamp bar and are connected; Reflecting paper is positioned at the top of lamp bar, and reflecting paper is made up of highly reflective material and has certain scattering properties, can upwards reflect the light reflected by lens, and the surface of reflecting paper has several manholes, LED light source and lens corresponding through this through hole lamp bar; Diffuser plate, BEF film and diffusion barrier are arranged at backlight cavity top, and the order that connects of diffuser plate, BEF film and diffusion barrier is stack successively from bottom to top along the light path exit direction of LED light source on frame top.
As the preferred version of a kind of backlight module, periphery corresponding with connecting LED light source position on lamp bar is provided with alignment recess, and alignment recess is suitable with the lens suspension column of described lens base.
There is in the backlight cavity of backlight module a plurality of lamp bar and be parallel to each other and be fixed on backlight cavity base plate, lamp bar is fixed multiple LED light source, so can make the array that LED lens composition is suitable.
According to foregoing invention, the first incident ray that LED light source sends is refracted into lens by the curved surface plane of incidence, arrived conical surface exit facet by the reflection of curved face total reflection face, be refracted to above lens on diffuser plate then through conical surface exit facet, and be offset to from central shaft Z remotely. Second incident ray is refracted into lens by the curved surface plane of incidence, is arrived conical surface exit facet by the reflection of curved face total reflection face, is refracted in reflecting paper then through conical surface exit facet, is then reflexed to diffuser plate above lens by reflecting paper. 3rd incident ray is refracted into lens by the curved surface plane of incidence, then arrives light diffusing sheet above lens through the refraction of conical surface exit facet. 4th incident ray is refracted into lens by incident sideways face and the conical surface plane of incidence, is then refracted on light diffusing sheet through curved refractive face. All light that LED light source sends, bigger deviation is there is by the backward direction away from central shaft Z of lens, light is uniformly diffused on the diffuser plate above lens, and all light, by light diffusing sheet, BEF film and diffusion barrier, form the uniformly light-emitting face that a brightness is higher.
The invention has the beneficial effects as follows:
1, these lens are provided with the curved surface plane of incidence at the plane of incidence, the light sent by LED light source is directed to multiple surfaces of lens exit facet, or reflect or reflection, light alignment surrounding is spread, can prevent light from upwards concentrating direct projection from LED light source, light distribution is better controlled, needs for back light, light alignment circumference can be made to spread, improve equilibrium degree, for instance by curved surface plane of incidence curved-surface reflection side bottom reflection ring, light is directed to the orientation that circumference is farther, coordinating the LED light source of array again, the light entirety equilibrium that is highly advantageous to is soft;
2, this lens design adds the control of the Fresnel light to the plane of incidence and exit facet, by increasing tore of reflection structure bottom lens, and by the adjustment to tore of reflection quantity, position and structural parameters thereof, the accurate control of Fresnel light can be realized, it is achieved thereby that the better control to lens entirety light type;
3, this lens design adds the tore of reflection structure bottom lens, owing to most of light happens is that the total reflection that energy is lossless on tore of reflection, avoid being reflected by the pcb board below lens bottom Fresnel light therethrough lens, because pcb board reflectance is generally about 70%, after using tore of reflection structure, the efficiency of light energy utilization of lens entirety is significantly enhanced.
4, described lens calculate through precision, are designed by surface composition, light alignment circumference greatly and are spread equably, not only increase the uniformity of its light utilization efficiency and brightness, also greatly reduce thickness and the volume of backlight module simultaneously;
5, reduce the consumption of material, reduce production cost, described backlight module, there is said lens, under ensureing the premise of performance not reducing backlight module, can significantly reduce LED light source quantity and backlight module thickness, it is achieved reduce energy consumption and the design of backlight module ultrathin.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of a kind of embodiment of the lens of the present invention;
Fig. 2 is the decomposing schematic representation of a kind of embodiment of backlight module of the present invention;
Fig. 3 is the front view of the reflective sheeting of the backlight module in Fig. 2;
The lamp bar that Fig. 4 is the backlight module in Fig. 2 arranges schematic diagram;
Fig. 5 is the generalized section in Fig. 4 along I-I;
Fig. 6 is the light path schematic diagram of the lens of an embodiment of the present invention.
In figure, backlight module 100; Backlight cavity side 110; Backlight cavity bottom surface 120; Lamp bar pcb board 130; LED light source 131; Alignment recess 132; Lens 140; The plane of incidence 141; Incident sideways face 141a; Conical surface plane of incidence 141b; Curved surface plane of incidence 141c; Lens base 142; Tore of reflection 142a; Exit facet 143; Curved face total reflection face 143a; Conical surface exit facet 143b; Curved surface exit facet 143c; Lens suspension column 144; Reflecting paper 150; Manhole 151; Diffuser plate 160; BEF film 170; Diffusion barrier 180;
Central shaft Z; Datum mark A; Angle theta1; Distance R1; Angle theta2; Distance is R2; First incident ray L1; Second incident ray incidence L2; 3rd incident ray L3; 4th incident ray L4��
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
A kind of lens, as it is shown in figure 1, described lens 140 be rotation body structure, its optical surface face includes the plane of incidence 141 of inner side, the exit facet 143 in outside and lens base 142, and the bottom of the plane of incidence 141 is passed through lens base 142 and is connected with the bottom of exit facet 143.
The plane of incidence 141 is connected and composed by incident sideways face 141a, conical surface plane of incidence 141b and curved surface plane of incidence 141c, the shape of generatrix of curved surface plane of incidence 141c such as one section of helical.
Using the intersection point of lens base 142 and central shaft Z as datum mark A, it is �� that note connects any point on curved surface plane of incidence 141c and the straight line of datum mark A with the angle of central shaft Z1, on curved surface plane of incidence 141c, any point is R with the distance of datum mark A1(��1), the bus of curved surface plane of incidence 141c is expressed as:
R 1 ( &theta; 1 ) = &Sigma; n = 1 8 a n &CenterDot; exp &lsqb; - ( &theta; 1 - b n / c n ) 2 &rsqb; , Wherein an��bn��cnFor conic constant;
As 0 < ��1During < ��/9, R1(��1) along with ��1Increase and monotone decreasing;
As ��/9 < ��1During < ��/3, R1(��1) along with ��1Increase and monotonic increase;
Exit facet 143 is connected and composed by curved face total reflection face 143a, conical surface exit facet 143b and curved surface exit facet 143c, the shape of generatrix of curved surface exit facet 143c such as one section of parabola.
It is �� that note connects any point on curved surface exit facet 143c and the straight line of described datum mark A with the angle of central shaft Z2, on curved surface exit facet 143c, any point is R with the distance of datum mark A2(��2), the bus of curved surface exit facet 143c is expressed as:
R 2 ( &theta; 2 ) = &Sigma; n = 1 8 a n &CenterDot; exp &lsqb; - ( &theta; 2 - b n / c n ) 2 &rsqb; , Wherein an��bn��cnFor conic constant;
As 0 < ��2During < ��/3, R2(��2) along with ��2Increase and monotonic increase.
Having tore of reflection 142a on lens base 142, it is possible to reduce the impact of Fresnel reflection, the shape of tore of reflection 142a can also is that shape like other multiple types such as circular arc type, cone. The quantity of tore of reflection 142a determines according to the characteristic of LED light source, is generally 1-6, and in the present embodiment, tore of reflection 142a is taken as 2.
With reference to Fig. 2, backlight module 100, backlight cavity side 110, backlight cavity bottom surface 120, lamp bar pcb board 130, lens 140 and reflecting paper 150, backlight cavity side 110 is connected to diffuser plate 160, BEF film 170 and diffusion barrier 180. Lamp bar pcb board 130 has polylith, and the present embodiment is 3 pieces, and lamp bar pcb board 130 is bar shaped and even width, and is fixed in parallel to each other on backlight cavity bottom surface 120.Fixing multiple LED light source (not marking in figure) on lamp bar pcb board 130, the present embodiment is 8, and lens 140 are fixed on lamp bar pcb board 130 according to the position of LED light source. Light path exit direction along LED light source places diffuser plate 160, BEF film 170 and diffusion barrier 180 successively on the upside of backlight cavity side 110.
With reference to Fig. 3, reflecting paper 150 is positioned at above lamp bar pcb board. Reflecting paper 150 is highly reflective material, and has certain scattering properties, upwards reflects the light reflected by lens 140, to carry light extraction efficiency. Reflecting paper 150 is fixed on lamp bar pcb board 130, the surface of reflecting paper 150 has manhole 151, LED light source 131 and lens 140 are projected in the inner chamber of reflecting paper 150 through manhole 151.
With reference to Fig. 4, for the material of lamp bar pcb board 130 in cost accounting of a relatively high, so the width of lamp bar pcb board 130 is slightly larger than the external diameter of lens 140, such as big 2mm. Lamp bar pcb board 130 is parallel to each other, is fixed on backlight cavity bottom surface 120, and lamp bar pcb board 130 does not cover whole backlight cavity bottom surface 120. Owing to luminous intensity distribution is reasonable, LED light source quantity being greatly decreased, also just decreases the consumption of lamp bar pcb board, backlight module 100 is with 120, less backlight cavity bottom surface number, it is possible to reduces overall manufacturing cost, has higher economic implications.
Fig. 5 is the schematic diagram in light-emitting device I-I cross section along the line in Fig. 4;
As it is shown in figure 5, LED light source 131 is arranged on lamp bar pcb board 130, access power supply by lamp bar pcb board 130. LED light source 131 is arranged in the plane of incidence 141 of lens 140. The light produced from LED light source 131 enters lens 140 by the plane of incidence 141, and is penetrated from lens by exit facet 143.
Lens 140 can also arrange multiple lens suspension column 144, and the height of lens suspension column 144 is 0.4-1mm, and shape can be cylindrical or rectangle. Also including multiple alignment recess 132 extended to its lower surface direction by upper surface on lamp bar pcb board 130, the shape of alignment recess 132 is adaptive with size and lens suspension column 144, and its degree of depth can partially or completely pass lamp bar pcb board 130. The lens suspension column 144 of lens 140 is inserted in alignment recess 132 and is fixed on lamp bar pcb board 130, also makes lens 140 position and be directed at the center of LED light source 131 simultaneously. The number of lens suspension column 144 takes 3-4, individual, at least 3, not easily centers very little, then can coordinate because of technologic deviation effects and increase manufacturing cost too much, and the lens suspension column 144 of the present embodiment is 3.
With reference to Fig. 6, the first incident ray L that LED light source 131 sends1It is refracted into lens 140 by curved surface plane of incidence 141c, is arrived conical surface exit facet 143b by curved face total reflection face 143a reflection, be refracted to above lens 140 on diffuser plate 160 then through conical surface exit facet 143b, and be offset to from central shaft Z remotely. Second incident ray incidence L2It is refracted into lens 140 by curved surface plane of incidence 141c, is arrived conical surface exit facet 143b by curved face total reflection face 143a reflection, reflex in reflecting paper 150 then through conical surface exit facet 143b, then reflexed to diffuser plate 160 above lens 140 by reflecting paper 150. 3rd incident ray L3It is refracted into lens 140 by curved surface plane of incidence 141c, then arrives diffuser plate 160 above lens 140 through conical surface exit facet 143b refraction. 4th incident ray L4It is refracted into lens 140 by incident sideways face 141a and conical surface plane of incidence 141b, is then refracted on diffuser plate 160 through curved surface exit facet 143c.
With reference to Fig. 1-6, all light that LED light source 131 sends, bigger deviation widely is there is by the backward direction away from central shaft Z of lens 140, light is uniformly diffused into the top of lens, the light of all LED light sources, by diffuser plate 160, BEF film 170 and diffusion barrier 180, forms a light-emitting area that brightness is higher and the uniformity is high.
In sum, above-mentioned embodiment is not the restricted embodiment of the present invention, modification that all those skilled in the art carry out on the basis of the flesh and blood of the present invention or equivalent deformation, all at the technology category of the present invention.

Claims (8)

1. lens, it is characterised in that described lens are rotation body structure, its optical surface includes the plane of incidence of inner side, the exit facet in outside and top reflective face, and the bottom of the plane of incidence is connected with the bottom of exit facet by bottom surface;
The described plane of incidence is connected and composed by incident sideways face, the conical surface plane of incidence and the curved surface plane of incidence;
Using the intersection point of described bottom surface and central shaft as datum mark, if any point connected on the curved surface plane of incidence and the straight line of datum mark are �� with the angle of central shaft1, on the curved surface plane of incidence, any point is R with the distance of datum mark1(��1), the bus of the curved surface plane of incidence is expressed as: R 1 ( &theta; 1 ) = &Sigma; n = 1 8 a n &CenterDot; exp &lsqb; - ( &theta; 1 - b n / c n ) 2 &rsqb; , Wherein an��bn��cnFor conic constant;
As 0 < ��1During < ��/9, R1(��1) along with ��1Increase and monotone decreasing;
As ��/9 < ��1During < ��/3, R1(��1) along with ��1Increase and monotonic increase;
Described exit facet is connected and composed by curved face total reflection face, conical surface exit facet and curved surface exit facet, if any point connected on curved surface exit facet and the straight line of described datum mark are �� with the angle of central shaft2, on curved surface exit facet, any point is R with the distance of datum mark2(��2), the bus of curved surface exit facet is expressed as: R 2 ( &theta; 2 ) = &Sigma; n = 1 8 a n &CenterDot; exp &lsqb; - ( &theta; 2 - b n / c n ) 2 &rsqb; , Wherein an��bn��cnFor conic constant;
As 0 < ��2During < ��/3, R2(��2) along with ��2Increase and monotonic increase.
2. a kind of lens according to claim 1, it is characterised in that described bottom surface is provided with tore of reflection.
3. a kind of lens according to claim 2, it is characterised in that the number of described tore of reflection is 1-6.
4. a kind of lens according to claim 3, it is characterised in that tore of reflection be shaped as circular arc or cone.
5. a kind of lens according to claim 4, it is characterised in that the bottom surface of lens is evenly equipped with several lens suspension columns, and support is the structure of square column type or cylinder, and lens suspension column is positioned at the inside line of tore of reflection.
6. a backlight module, it is characterised in that backlight module includes backlight cavity, is arranged on the lamp bar of cavity bottom, is arranged on the reflecting paper on lamp bar; Lamp bar is the strip structure of even width, lamp bar is fixed on backlight cavity base plate in parallel to each other, fixing several LED light sources on lamp bar, and have multiple lens as claimed in claim 5, lens are fixed on above LED light source one to one and fix with lamp bar and are connected; Reflecting paper is positioned at the top of lamp bar, and reflecting paper is made up of highly reflective material and has certain scattering properties, can upwards reflect the light reflected by lens, and the surface of reflecting paper has several manholes, LED light source and lens corresponding through this through hole lamp bar; Diffuser plate, BEF film and diffusion barrier are arranged at backlight cavity top, and the order that connects of diffuser plate, BEF film and diffusion barrier is stack successively from bottom to top along the light path exit direction of LED light source on frame top.
7. a kind of backlight module according to claim 6, it is characterised in that periphery corresponding with connecting LED light source position on lamp bar is provided with alignment recess, and alignment recess is suitable with the lens suspension column of described lens base.
8. a kind of backlight module according to claim 7, it is characterised in that one group of alignment recess is uniform 3, the lens suspension column of corresponding LED light source is 3 and uniform.
CN201610025009.7A 2016-01-14 2016-01-14 Lens and backlight module with lens Pending CN105650598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610025009.7A CN105650598A (en) 2016-01-14 2016-01-14 Lens and backlight module with lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610025009.7A CN105650598A (en) 2016-01-14 2016-01-14 Lens and backlight module with lens

Publications (1)

Publication Number Publication Date
CN105650598A true CN105650598A (en) 2016-06-08

Family

ID=56486453

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610025009.7A Pending CN105650598A (en) 2016-01-14 2016-01-14 Lens and backlight module with lens

Country Status (1)

Country Link
CN (1) CN105650598A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224791A (en) * 2015-08-28 2016-12-14 中山诺顿科研技术服务有限公司 LED lamp
CN108051953A (en) * 2018-01-12 2018-05-18 安徽芯瑞达科技股份有限公司 A kind of high colour gamut down straight aphototropism mode set of low mixed light height
CN109268707A (en) * 2018-10-31 2019-01-25 欧普照明股份有限公司 Light distribution element, light source assembly and illuminator
CN109799645A (en) * 2019-03-15 2019-05-24 惠州市华星光电技术有限公司 Backlight module and display device
CN112631026A (en) * 2020-12-31 2021-04-09 联晶智能电子有限公司 Backlight lens and module
CN115264414A (en) * 2022-05-31 2022-11-01 大连工业大学 Combined compact LED lens

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060076568A1 (en) * 2004-10-12 2006-04-13 Cree, Inc. Side-emitting optical coupling device
CN202274376U (en) * 2011-10-31 2012-06-13 深圳Tcl新技术有限公司 Liquid crystal display backlight module and LCD (liquid crystal display)
CN102667310A (en) * 2009-12-18 2012-09-12 夏普株式会社 Illuminating device, display device, and television receiver
CN202733781U (en) * 2012-03-19 2013-02-13 郎欢标 Secondary optical lens for liquid crystal display backlight system and light-emitting diode (LED) lens device and lighting system
CN202927738U (en) * 2012-11-09 2013-05-08 深圳Tcl新技术有限公司 LED optical lens and LED backlight module
CN203771292U (en) * 2014-03-21 2014-08-13 深圳市佳美达光电有限公司 Direct-lit reflecting light lens for ultrathin televisions
CN204176450U (en) * 2014-10-10 2015-02-25 深圳万润科技股份有限公司 A kind of straight-down negative luminescent panel lamp
CN204358631U (en) * 2014-12-16 2015-05-27 深圳市得润电子股份有限公司 A kind of LED lens arrangement
US20150300595A1 (en) * 2014-04-16 2015-10-22 Hon Hai Precision Industry Co., Ltd. Lens for light emitting diode and led module having the lens

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060076568A1 (en) * 2004-10-12 2006-04-13 Cree, Inc. Side-emitting optical coupling device
CN102667310A (en) * 2009-12-18 2012-09-12 夏普株式会社 Illuminating device, display device, and television receiver
CN202274376U (en) * 2011-10-31 2012-06-13 深圳Tcl新技术有限公司 Liquid crystal display backlight module and LCD (liquid crystal display)
CN202733781U (en) * 2012-03-19 2013-02-13 郎欢标 Secondary optical lens for liquid crystal display backlight system and light-emitting diode (LED) lens device and lighting system
CN202927738U (en) * 2012-11-09 2013-05-08 深圳Tcl新技术有限公司 LED optical lens and LED backlight module
CN203771292U (en) * 2014-03-21 2014-08-13 深圳市佳美达光电有限公司 Direct-lit reflecting light lens for ultrathin televisions
US20150300595A1 (en) * 2014-04-16 2015-10-22 Hon Hai Precision Industry Co., Ltd. Lens for light emitting diode and led module having the lens
CN204176450U (en) * 2014-10-10 2015-02-25 深圳万润科技股份有限公司 A kind of straight-down negative luminescent panel lamp
CN204358631U (en) * 2014-12-16 2015-05-27 深圳市得润电子股份有限公司 A kind of LED lens arrangement

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106224791A (en) * 2015-08-28 2016-12-14 中山诺顿科研技术服务有限公司 LED lamp
CN108051953A (en) * 2018-01-12 2018-05-18 安徽芯瑞达科技股份有限公司 A kind of high colour gamut down straight aphototropism mode set of low mixed light height
CN109268707A (en) * 2018-10-31 2019-01-25 欧普照明股份有限公司 Light distribution element, light source assembly and illuminator
CN109799645A (en) * 2019-03-15 2019-05-24 惠州市华星光电技术有限公司 Backlight module and display device
CN109799645B (en) * 2019-03-15 2022-05-31 惠州市华星光电技术有限公司 Backlight module and display device
CN112631026A (en) * 2020-12-31 2021-04-09 联晶智能电子有限公司 Backlight lens and module
CN115264414A (en) * 2022-05-31 2022-11-01 大连工业大学 Combined compact LED lens
CN115264414B (en) * 2022-05-31 2023-08-04 大连工业大学 Combined compact LED lens

Similar Documents

Publication Publication Date Title
CN105650598A (en) Lens and backlight module with lens
US6805468B2 (en) Surface light source device and liquid crystal display device using it
JP5375966B2 (en) Surface light source device, liquid crystal display device, and lens
CN100388514C (en) Mirror and homogeneously luminous LED utilizing the mirror
KR20050043723A (en) Prism sheet, back light unit using the prism sheet, and transmissive liquid crystal display device
CN103629570A (en) lighting device
CN102893075A (en) Backlight device and liquid crystal display device
US20050045898A1 (en) Light-emitting diode and backlight system using the same
CN104132304A (en) Optical lens
CN103629571A (en) lighting device
US20070064440A1 (en) Light guide device and backlight module using the same
WO2020015341A1 (en) Direct-type backlight module and display
CN203258494U (en) Light-emitting device and relevant projection system
JP2007080789A (en) Light guide
KR102053008B1 (en) Lens for wide diffusion light
CN100422814C (en) Backlight module
JP2006164625A (en) Luminaire and display device provided with it
US8162512B2 (en) Optical sheet, manufacturing method thereof, and backlight assembly using the same
CN102859264A (en) Backlight device and liquid crystal display device
CN106287578A (en) Reflection subassembly, backlight module
US7684118B2 (en) Diffusion plate and diffusion plate assembly
TWI407162B (en) Light guide plate and backlight module
CN109027737B (en) Lens, lamp strip, backlight unit and display device
CN210199344U (en) Light guide plate for backlight source
CN210179534U (en) Low-glare optical lens and lamp module thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20160608

RJ01 Rejection of invention patent application after publication