CN110058454A - A kind of light diffusion module of backlight - Google Patents
A kind of light diffusion module of backlight Download PDFInfo
- Publication number
- CN110058454A CN110058454A CN201910254243.0A CN201910254243A CN110058454A CN 110058454 A CN110058454 A CN 110058454A CN 201910254243 A CN201910254243 A CN 201910254243A CN 110058454 A CN110058454 A CN 110058454A
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- China
- Prior art keywords
- diffuser
- light
- integrated package
- astigmatism
- substrate
- 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.)
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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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
-
- 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
- F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
-
- 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
- F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL 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
- G02F1/00—Devices 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
- G02F1/01—Devices 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
- G02F1/13—Devices 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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The present invention relates to a kind of light of backlight to spread module, it includes diffuser；It further include lens integrated package；Diffuser is integrally formed by astigmatism skin plate and diffuser side plate.Lens integrated package is a kind of multiple lamp caves being recessed forward to the basin shape convex block of the square bathtub construction by presentation proper alignment of rear projection and the basin bottom part on rear side of each basin shape convex block from rear side of substrate, the substrate；And the spherical structure positioned at lamp cave bottom；It is located at retaining wall of all lamp caves surrounding to rear projection；It is located at the block of substrate surrounding substrate surrounding raised to the periphery；The non-transparent entity block that the first screw hole pilum on several lens integrated packages to rear projection of rear lateral portion is integrally formed.Lens integrated package is mounted on rear side of diffuser；In the space for surrounding substrate insertion diffuser side plate.Astigmatism module of the present invention can realize no shadow splicing；It is simple with structure, easy for installation, manufacturing cost is low, light transmission efficiency is high, is able to achieve the advantages such as waterproof.
Description
Technical field
The present invention relates to lamp box fields, and in particular to a kind of light diffusion module of backlight.
Background technique
In actual life, backlight application and its extensively, such as: TFT-LCD(liquid crystal display), lamp box, illumination back
Light source equipment.The uniformity of light is one of important indicator of backlight, and different application has different requirements, as in (liquid crystal display)
Backlight module, it is made of High-tech Materials such as scattering sheet, reflecting piece and brightening piece and light sources, refers to back light source technique
Mark requires very high.Therefore, for the expensive of the light diffusing member of TFT-LCD.
With the development of the global economy, constantly promoting under the new situation in Global Urbanization and smart city, light diffusion
The application of module will more extensively.Therefore, there is an urgent need to develop the backlight presentation device of large area light emitting, such as large area lamp
Case, large area light emitting wall and large area backlight show equipment and large-scale dynamic screen etc..The backlight of these large area light emittings
Presentation device be unable to do without backlight, it is especially desirable to a kind of backlight for being able to achieve no shadow splicing, to meet the market demand.
For the backlight module of lamp box and lighting apparatus, technical indicator is far below the backlight mould in TFT-LCD
Block.Currently, the backlight of lamp box and lighting apparatus generallys use the following two kinds.
First is that side-edge type backlight, is mainly made of light guide plate and light source, light source is mounted on light guide plate side, in leaded light
Board bottom portion is equipped with light guiding points made of engraving or printing.Due to guide-lighting distance limitation, it is applicable in the lesser product of light-emitting area, is commonly used
In the TFT-LCD of civil, small dimension lamp box, decoration painting, Window Display, plate lighting etc..Due to the light of side-edge type backlight
Source is mounted on light guide plate side, this body structure of light source occupies the certain space of light guide plate side, therefore, it is impossible to realize that no shadow is spelled
It connects.
Second is that direct-light-type backlight, is mainly made of astigmatism plate, light source and cabinet, astigmatism plate is mounted on cabinet front,
Light source is mounted on rear side of cabinet；Therefore, direct-light-type backlight has the advantages such as brightness is high, and light source controllability is strong, therefore, using pole
To be extensive, such as: high-end TFT-LCD, lamp box, guiding plate, show window；And illuminator and traffic lamps and lanterns etc..Since astigmatism plate is pacified
Mounted in cabinet front, light source is mounted on rear side of cabinet, and light source and front side portion have a biggish distance, therefore, direct-type backlight
Source is thicker；Meanwhile cabinet surrounding is lighttight box body wall, after being spliced into, serious shadow can be gone out between cabinet, also can not
It realizes and splices without shadow.
Summary of the invention
Place and existing defect in order to overcome the deficiencies of the prior art solve backlight Bonding Problem, meet the market demand,
The present invention provides the light diffusion mould that a kind of structure is simple, easy for installation, manufacturing cost is low, is able to achieve seamless spliced backlight
Block.
The present invention is to solve prior art defect, realizes a kind of light diffusion module of seamless spliced backlight, it includes
Diffuser；It further include lens integrated package；The diffuser is by: astigmatism skin plate and is located at the astigmatism skin plate surrounding edge portion
It is integrally formed to the diffuser side plate of rear projection.The lens integrated package be it is a kind of from: on rear side of substrate, the substrate it is multiple to
The basin shape convex block of the square bathtub construction by presentation proper alignment of rear projection and the basin bottom on rear side of each basin shape convex block
The lamp cave that portion is recessed forward；And the spherical structure positioned at lamp cave bottom；It is located at retaining wall of all lamp caves surrounding to rear projection；If
In the block of substrate surrounding substrate surrounding raised to the periphery；On several lens integrated packages to rear projection of rear lateral portion
The non-transparent entity block that is integrally formed of the first screw hole pilum.Said lens integrated package is mounted on rear side of diffuser；It is embedded in substrate
In the space that diffuser side plate surrounds, and abut substrate；The block of substrate surrounding is just pressed in the rear lateral portion of diffuser side plate；Through
It is fixed by transparent adhesive tape.From the above technical characteristic it is found that in the space that retaining wall surrounds a kind of mountable lamp plate, and will be on front side of lamp plate
Light source be placed in lamp cave；Since the light diffusion module of backlight is integrated composition, surrounding is unobstructed, therefore, mutually after splicing
Surrounding is not in apparent concealed wire, it can be achieved that splicing without shadow；Meanwhile the spherical structure of lamp cave bottom and substrate form a kind of light
Lens are learned, the directional light that light source issues enters back into diffuser after spherical structure reflects, thus, it is obtained in astigmatism panel uniform
Scattering light.It can be in the sky that retaining wall surrounds after lamp plate is mounted in the space that retaining wall surrounds for the application for meeting outdoor environment
Interior perfusion marine glue, to realize waterproof effect；The structure for changing spherical structure can be before the light of backlight spreads module
Different lighting effects is presented in side.The light diffusion module of backlight of the present invention can be spliced into the Luminous wall or other of large area lamp box
The backlight of large area presentation device.
Module is spread according to the light of above-described backlight, is surrounded convenient for being located at retaining wall on rear side of lens integrated package
Lamp plate is installed in space, is located in the space that retaining wall surrounds on rear side of lens integrated package and is equipped with several to rear projection, mutually guarantor
Hold the second screw hole pilum on certain distance and the integrally formed lens integrated package of lens integrated package；To reduce lens integrated package
On influence of the second screw hole pilum to optical path, the second screw hole pilum on the lens integrated package is located at basin shape convex block basin shape convex block
Intersection；The second screw hole pilum rear end face on the lens integrated package is concordant with basin bottom height.
According to above-described spherical structure, a kind of technology of spherical structure of the light diffusion module offer of backlight of the present invention
Scheme is: when needing that light-dispersing effect is presented on the panel of the light diffusion module of backlight, which is to be recessed forward
Spherical surface；To make the spherical surface being recessed forward and panel form a kind of plano-concave lens, the light source being mounted in lamp cave is projected
Optical path is scattered.
According to above-described spherical structure, the another kind for the spherical structure that the light diffusion module of backlight of the present invention provides
Scheme, when needing that spotlight effect is presented on the panel of the light diffusion module of backlight, which is to rear projection
Spherical surface；To make the spherical surface being recessed forward and panel form a kind of plano-convex lens, to the light for the light source injection being mounted in lamp cave
It is assembled on road.
Tub wall according to above-described basin shape convex block, the basin shape convex block surrounding is arc-shaped；And hair is applied on tub wall surface
Luminescent material.
The first screw hole pilum on lens integrated package described in light diffusion module as backlight of the present invention, in the lens
The first screw hole pilum on integrated package is located at the Pen Xing convex block intersection far from surrounding edge portion；To reduce on lens integrated package
Influence of the first screw hole pilum to optical path.The height of projection of the first screw hole pilum on lens integrated package it is concordant with retaining wall height or
Slightly above retaining wall；To ensure the steady installation of the light diffusion module of backlight；The first screw hole pilum on lens integrated package
Copper post is equipped in screw hole；To ensure the firmness of the light diffusion module installation of backlight.
The improvement of light diffusion module as backlight of the present invention, is equipped with the astigmatism on lens integrated package in substrate leading flank
Micro-structure；The light for projecting lens integrated package is more uniform.
The further improvement of light diffusion module as backlight of the present invention, is equipped with astigmatism in the trailing flank of astigmatism skin plate
Cover upper first astigmatism line；The first astigmatism line is made of a plurality of stria being parallel to each other on the diffuser；To improve light-dispersing effect.
The further improvement of light diffusion module as backlight of the present invention, is equipped in the leading flank of astigmatism skin plate and dissipates
Second astigmatism line on light shield；The second astigmatism line is made of a plurality of stria being parallel to each other on the diffuser；On the diffuser
Second astigmatism line is with the first astigmatism line on diffuser at arranged in a crossed manner；Further to improve light-dispersing effect.
A kind of light of backlight of the present invention spreads module, and its advantages are shown in aspects following six:
First is that lens integrated package described in the light diffusion module of backlight of the present invention be it is a kind of by: on rear side of substrate, the substrate
The basin shape convex block of multiple square bathtub constructions by presentation proper alignment to rear projection and it is located on rear side of each basin shape convex block
The lamp cave that is recessed forward of basin bottom part；And the spherical structure positioned at lamp cave bottom；All lamp caves surrounding is located to rear projection
Retaining wall；It is located at the block of substrate surrounding substrate surrounding raised to the periphery；Positioned at rear lateral portion several to rear projection lens
The non-transparent entity block that the first screw hole pilum on integrated package is integrally formed.It is found that this non-transparent entity block being integrally formed, surrounding
Structure without any blockage, mutually surrounding is not in apparent concealed wire, it can be achieved that splicing without shadow after splicing；Therefore, the backlight
Light diffusion module can be spliced into the Luminous wall or other large area presentation devices of large area lamp box；
Second is that the mountable lamp plate within the scope of the retaining wall of the light diffusion module of backlight, and light source is placed in lamp cave, light source hair
Light out obtains the illumination applications requirement of needs after spherical structure shaping, adjustment light distribution on front side of astigmatism skin plate；When
When spherical structure is the spherical surface being recessed forward, a kind of plano-concave lens is formed with substrate, makes that light-dispersing effect is presented on astigmatism skin plate；
When spherical structure be to rear projection spherical surface when, a kind of plano-convex lens are formed with substrate, so that optically focused is presented on astigmatism skin plate
Effect；To meet the application of different bandwagon effects；
Third is that diffuser is additionally provided on front side of lens integrated package, to keep light distribution more uniform；
Fourth is that in the range of the retaining wall that lamp plate is mounted on the light diffusion module of backlight is crowded around, it can be in the range that retaining wall is crowded around
Interior perfusion marine glue meets outdoor application to implement water-proofing treatment to lamp plate；
Fifth is that the light diffusion module of backlight of the present invention is non-transparent entity block, with the high advantage of light transmission efficiency；
Sixth is that each structure of the light diffusion module of backlight of the present invention is even to be integrated composition, there is easily manufactured, manufacturing cost
Low advantage；
In short, the light diffusion module of backlight of the present invention is applicable not only to the lamp box presentation device of large area or large area lighting is set
It applies, but also meets outdoor application.It is simple with structure, easy for installation, manufacturing cost is low, light transmission efficiency is high, is able to achieve waterproof
It is required that etc. advantages.
Detailed description of the invention
Below according to attached drawing, the invention will be further described, and attached drawing for a better understanding of the invention, should not only become
Limitation of the present invention:
Fig. 1 is that the light of backlight of the present invention spreads the trailing flank schematic diagram of module；
Fig. 2 is that the light of backlight of the present invention spreads the surrounding side schematic view in module map 1；
Fig. 3 is present invention a-a diagrammatic cross-section as shown in Figure 1；
Fig. 4 is present invention b-b diagrammatic cross-section as shown in Figure 1；
Fig. 5 is present invention c-c diagrammatic cross-section as shown in Figure 1；
Fig. 6 is present invention d-d diagrammatic cross-section as shown in Figure 1.
Mark explanation in attached drawing: 1-diffuser, 11-astigmatism skin plates, 12-diffuser side plates, on 13-diffusers
The first astigmatism line, the second astigmatism line on 14-diffusers, 2-lens integrated packages, the astigmatism on 20-lens integrated packages it is micro-
Structure, 21-substrates, 22-basin shape convex blocks, 23-basin bottoms, 24-lamp caves, 240-spherical structures, 25-tub walls, 26-shields
Wall, the block of 27-substrate surroundings, the first screw hole pilum on 28-lens integrated packages, the second spiral shell on 29-lens integrated packages
Hole pilum.
Specific embodiment
Below with reference to the Detailed description of the invention in a kind of light diffusion module embodiments of backlight of the present invention, to the embodiment of the present invention
In technical solution be clearly and completely described.
The front side described in a kind of light diffusion module of the present invention, rear side are with the diffusion of light shown in Fig. 1 of the present invention
The trailing flank schematic diagram of module is as reference direction；Its front side refers to that light spreads module light-emitting surface direction；Rear side refers to the phase of front side
Opposite direction.
A kind of embodiment of the light diffusion module of backlight of the present invention, as shown in Figures 1 to 6, the light of the backlight is spread
Module includes diffuser 1；It further include lens integrated package 2；The diffuser 1 is by: astigmatism skin plate 11 and is located at the diffuser
11 surrounding edge portion of panel is integrally formed to the diffuser side plate 12 of rear projection；(but being not limited to) cream can be used in above-mentioned diffuser 1
White high molecular material (such as: PC, PVC, PS, PMMA, PET, epoxy resin), and be fabricated by Shooting Technique.Institute
The lens integrated package 2 stated be it is a kind of from: substrate 21,21 rear side of substrate it is multiple to rear projection by presentation proper alignment
Square bathtub construction basin shape convex block 22 and the lamp cave 24 that is recessed forward positioned at 23, the basin bottom of 22 rear side of each basin shape convex block；With
And: the spherical structure 240 positioned at 24 bottom of lamp cave；It is located at retaining wall 26 of all 24 surroundings of lamp cave to rear projection；It is located at substrate 21
The block 27 of surrounding substrate surrounding raised to the periphery；On several lens integrated packages to rear projection of rear lateral portion
The non-transparent entity block that one screw hole pilum 28 is integrally formed；(but being not limited to) transparent polymer material can be used in said lens integrated package 2
Expect (such as: PC, PVC, PS, PMMA, PET, epoxy resin), and is fabricated by Shooting Technique.Aforesaid substrate 21 it is big
The small interference fit surrounded with diffuser side plate 12；Certain distance is kept on front side of the block 27 and substrate 21 of substrate surrounding；Substrate
27 width astigmatism cover side plate of block, 12 trailing flank of surrounding cooperates；Lens integrated package 2 is mounted on 1 rear side of diffuser；Make substrate
In the space that 21 insertion diffuser side plates 12 surround, and abut substrate 21；The block 27 of substrate surrounding is just pressed in diffuser side
The rear lateral portion of plate 12；It is fixed via transparent adhesive tape (such as shadowless glue, structure glue).In practical application, lamp plate is mounted on retaining wall
It is placed in lamp cave 24 in 26 spaces surrounded and by the light source on lamp plate；The light that light source issues is through 240 shaping of spherical structure, adjustment
After light distribution, the illumination applications requirement of our needs is presented on front side of astigmatism skin plate 11；Change the spherical surface of spherical structure 240
Different lighting effects is presented in shape on astigmatism skin plate 11.Since the light diffusion module of backlight is integrated composition, surrounding
It is unobstructed, it therefore, will not between the light diffusion module of adjacent backlight when the light diffusion module of muti-piece backlight is mutually spliced
There is apparent concealed wire, it can be achieved that splicing without shadow.For example, to make a width large area lamp box, lamp plate is first mounted on retaining wall 26
In the space surrounded, then the light with the backlight of light source is spread module by the first screw hole pilum 28 passed through on lens integrated package
On splicing installation support frame, the Luminous wall of a width large area is formed, later, (such as lamp house cloth is drawn in Luminous wall installed in front picture
Face)；To show picture effect.It, can be in retaining wall after lamp plate is mounted in the space that retaining wall 26 surrounds to meet outdoor application
Marine glue is perfused in 26 spaces surrounded, to realize waterproof effect；It is found that made of the light diffusion module of backlight of the present invention
Backlight, is applicable not only to the lamp box presentation device or large area lighting facility of large area, but also meets outdoor application.
The embodiment of module is spread according to the light of above-described backlight, lamp plate is mounted in the space that retaining wall 26 surrounds
It can be fixed by structure glue.For the ease of dismounting, it is located at as shown in Fig. 1, fig. 4 to fig. 6, on rear side of the lens integrated package 2 described
Be equipped in the space that retaining wall 26 surrounds several to rear projection, mutually keep certain distance, integrally formed with lens integrated package 2
The second screw hole pilum 29 on lens integrated package；The second screw hole pilum 29 on lens integrated package is located at basin shape convex block 22 and crosses
Place；29 rear end face of the second screw hole pilum on lens integrated package is concordant with 3 height of basin bottom.
Module is spread according to the light of above-described backlight, the light diffusion module of backlight of the present invention provides two bulbs
The embodiment of face structure 240.When needing that light-dispersing effect is presented on the panel of the light diffusion module of backlight, such as Fig. 1, figure
3, shown in Fig. 5, spherical structure 240 is the spherical surface being recessed forward；It is a kind of flat to make the spherical surface being recessed forward and substrate 21 be formed
Concavees lens, the optical path projected to the light source being mounted in lamp cave 24 are scattered.When needs spread module in the light of backlight
When spotlight effect being presented on panel, spherical structure 240 is the spherical surface (indicating not in the drawings) to rear projection；It is recessed forward to make
Sunken spherical surface and substrate 21 forms a kind of plano-convex lens, and the optical path projected to the light source being mounted in lamp cave 24 is assembled.This
The spherical surface that the invention spherical structure 240 is preferably recessed forward.
The realization example of the light diffusion module of backlight according to the present invention, makes improvements as follows:
Preferably to guide optical path, as shown in Fig. 1 to Fig. 3 and Fig. 5,22 surrounding of basin shape convex block described in above embodiments
Tub wall 25 is arc-shaped；To reduce light loss, luminescent material is applied on 25 surface of tub wall.
It is above as shown in Fig. 1, Fig. 4, Fig. 6 to reduce influence of the first screw hole pilum 28 on lens integrated package to optical path
The first screw hole pilum 28 on lens integrated package as described in the examples is located at the basin shape convex block 22 far from surrounding edge portion and crosses
Place；To ensure that the light of this backlight spreads the steady installation of module, the protrusion of the first screw hole pilum 28 on lens integrated package is high
Degree flushes with or slightly higher than retaining wall 26 with 26 height of retaining wall；To ensure that the light of this backlight spreads the fastness of module installation, lens
Copper post is equipped in the screw hole of the first screw hole pilum 28 on integrated package.
To keep the light of lens integrated package injection more uniform, as shown in Figures 3 to 6, it is micro- that astigmatism is set in 21 leading flank of substrate
Structure 20；The astigmatic microstructures 20 can be dotted micro-structure；It can also be strip micro-structure；The present invention is preferably dotted micro-structure.
The dotted micro-structure can be a kind of dotted micro-structure of protrusion；It is also possible to a kind of dotted micro-structure of recess；It is no matter raised
Dotted micro-structure or recess dotted micro-structure can with the light of backlight spread module be integrally formed；It is processed into reduce
This.Astigmatic microstructures 20 of the present invention can be designed depending on the application to those skilled in the art and meet product
The microstructure aspects of actual requirement.Therefore, the present invention does not provide the above-mentioned drawings in detail about micro-structure.
Astigmatism is equipped in the trailing flank of astigmatism skin plate 11 as shown in Figures 3 to 6 for the light-dispersing effect for improving diffuser
Cover upper first astigmatism line 13；The first astigmatism line 13 is made of a plurality of stria being parallel to each other on the diffuser.To increase mist degree
The uniformity of value and light intensity is equipped with the second astigmatism line on diffuser in the leading flank of astigmatism skin plate 11 as shown in Figures 2 to 6
14；The second astigmatism line 14 is made of a plurality of stria being parallel to each other on the diffuser；The second astigmatism line 14 on the diffuser
With the first astigmatism line 13 on diffuser at arranged in a crossed manner；The second astigmatism line 14 on diffuser and the first astigmatism on diffuser
Most preferably 90 degree of the intersecting angle of line 13.The first astigmatism line 13 on above-mentioned diffuser and the second astigmatism line 14 on diffuser with
11 one-pass molding of astigmatism skin plate, thus manufacturing cost.It, can also be in 11 leading flank of astigmatism skin plate with after in addition to above scheme
Side carries out sandblasting or frosted；No matter the frosted particle that shot blasting particles or frosting technology are formed requires secondary operation, therefore, adopts
Manufacturing cost with shot blasting particles or the frosted particle of frosting technology formation is higher.
Above by backlight light diffusion module embodiment the present invention is described, provided embodiment
Only as an example, being not intended to limit practical range of the invention.Those skilled in the art both know about, according to
Upper specific implementation description can do various changes and modifications to the present invention, it is, therefore, to be understood that removing above-mentioned particular implementation
Outside, the present invention can otherwise be implemented, and be not limited to described in description above.
Claims (10)
1. a kind of light of backlight spreads module, including diffuser (1)；
It is characterized by also including lens integrated package (2)；
The diffuser (1) is from: astigmatism skin plate (11) and is located at astigmatism skin plate (11) the surrounding edge portion to rear projection
Diffuser side plate (12) is integrally formed；
The lens integrated package (2) be it is a kind of from: multiple on rear side of substrate (21), the substrate (21) are to rear projection by display
The basin shape convex block (22) of the square bathtub construction of mode proper alignment and the basin bottom being located on rear side of each basin shape convex block (22)
(23) the lamp cave (24) that portion is recessed forward；And it is located at the spherical structure (240) of lamp cave (24) bottom；It is located at all described
Retaining wall (26) of lamp cave (24) surrounding to rear projection；It is located at the block of the substrate (21) surrounding substrate surrounding raised to the periphery
(27)；The first screw hole pilum (28) on several lens integrated packages to rear projection of rear lateral portion is integrally formed transparent
Solid block；
The lens integrated package (2) is mounted on rear side of the diffuser (1)；The substrate (21) are made to be embedded in diffuser side plate (12)
In the space surrounded, and abut substrate (21)；The block (27) of the substrate surrounding is just pressed in the diffuser side plate (12)
Rear lateral portion, fixed via transparent adhesive tape.
2. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
It is located in the space that the retaining wall (26) surround on rear side of the lens integrated package (2) and is equipped with several to rear projection, mutual
Keep the second screw hole pilum (29) on certain distance and lens integrated package (2) integrally formed lens integrated package；The lens
The second screw hole pilum (29) on integrated package is located at basin shape convex block (22) intersection between the basin shape convex block (22)；Institute
The second screw hole pilum (29) rear end face stated on lens integrated package is concordant with basin bottom (3) height.
3. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The spherical structure (240) is the spherical surface being recessed forward.
4. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The spherical structure (240) is the spherical surface to rear projection.
5. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The tub wall (25) of basin shape convex block (22) surrounding is arc-shaped；Tub wall (25) surface coated with luminescent material.
6. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The first screw hole pilum (28) on the lens integrated package is located at the basin shape convex block (22) far from surrounding edge portion and hands over
At remittance；The first screw hole pilum (28) and the retaining wall (26) on the lens integrated package highly flush with or slightly higher than the retaining wall
(26)；Copper post is equipped in the screw hole of the first screw hole pilum (28) on the lens integrated package.
7. a kind of light of backlight according to claim 8 spreads module, it is characterised in that:
Substrate (21) leading flank is equipped with the astigmatic microstructures (20) on lens integrated package.
8. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The trailing flank of the astigmatism skin plate (11) is equipped with the first astigmatism line (13) on diffuser；First astigmatism on the diffuser
Line (13) is made of a plurality of stria being parallel to each other.
9. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The leading flank of the astigmatism skin plate (11) is equipped with the second astigmatism line (14) on diffuser；Second astigmatism on the diffuser
Line (14) is made of a plurality of stria being parallel to each other；First on the second astigmatism line (14) and diffuser on the diffuser
Astigmatism line (13) is at arranged in a crossed manner.
10. a kind of light of backlight according to claim 1 spreads module, it is characterised in that:
The screw pilum on several diffuser side plates is equipped with along diffuser side plate (12) inner wall on rear side of the diffuser (1)
(15)；Screw pilum (15) on the corresponding diffuser side plate of the block (27) of the substrate surrounding is equipped with screw hole；At this
Screw hole is fixed with the screw pilum (15) on the diffuser side plate via screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910254243.0A CN110058454A (en) | 2019-03-31 | 2019-03-31 | A kind of light diffusion module of backlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910254243.0A CN110058454A (en) | 2019-03-31 | 2019-03-31 | A kind of light diffusion module of backlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110058454A true CN110058454A (en) | 2019-07-26 |
Family
ID=67318041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910254243.0A Pending CN110058454A (en) | 2019-03-31 | 2019-03-31 | A kind of light diffusion module of backlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110058454A (en) |
-
2019
- 2019-03-31 CN CN201910254243.0A patent/CN110058454A/en active Pending
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Application publication date: 20190726 |