CN109491008A - A kind of direct backlight source structure with Integral secondary lens - Google Patents
A kind of direct backlight source structure with Integral secondary lens Download PDFInfo
- Publication number
- CN109491008A CN109491008A CN201910009727.9A CN201910009727A CN109491008A CN 109491008 A CN109491008 A CN 109491008A CN 201910009727 A CN201910009727 A CN 201910009727A CN 109491008 A CN109491008 A CN 109491008A
- Authority
- CN
- China
- Prior art keywords
- secondary lens
- light guide
- guide plate
- integral secondary
- backlight source
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0073—Light emitting diode [LED]
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
A kind of direct backlight source structure with Integral secondary lens, including backboard；Bottom inside backboard is provided with printed circuit board, and LED light is provided on printed circuit board, and reflecting plate is arranged in the top of printed circuit board and is provided with the through-hole that cooperated with LED lamp passes through；Top inside backboard is provided with diffuser plate and optical film；Light guide plate is provided between the diffuser plate and reflecting plate, the upper surface of light guide plate is set as Integral secondary lens, and secondary lens are set as continuous circular protrusions；The lower surface of light guide plate is provided with several receiving pits, and the surface for accommodating pit is provided with circular shaped lattice point, and the quantity of the receiving pit and position are identical as the quantity of LED light and position.Structure of the invention is compact, and stability is good, securely and reliably, is easily installed, and saves the time, saves space, simplified assembling process.
Description
Technical field
The present invention relates to the field of backlight more particularly to a kind of direct-light-type backlight knots with Integral secondary lens
Structure.
Background technique
Currently known direct-type backlight source technology, between LED lamp bead and diffuser plate, design has one section of light mixing area, is commonly called as
(area OD).Horizontal according to current industry, light mixing area (area OD) is typically designed in 5 ~ 6mm or more, is thinned and is required in backlight
Under increasingly higher demands, the light mixing area significant discomfort of 6mm or more should be descended to require；Another way, i.e., in single LED,
Additional lens, although the height in light mixing area (area OD) can be effectively thinned in the program, because LED quantity is more, lens design is cumbersome,
Installation is complicated, is not easy to exploitation and the packaging efficiency of backlight.In summary backlight cannot be effectively thinned in situation, the prior art
Integral thickness increases the complexity of packaging technology, is not easy to entire backlight Efficient Development and group is vertical.
Summary of the invention
It is simple and compact for structure it is an object of the present invention to provide a kind of direct backlight source structure with Integral secondary lens,
Light source can be effectively and uniformly propagated, solves the above technical problem.
In order to achieve the above technical purposes, reach above-mentioned technical requirements, the technical scheme adopted by the invention is that: it is a kind of
Direct backlight source structure with Integral secondary lens, including backboard；Bottom inside backboard is provided with printed circuit board, print
Be provided with LED light on circuit board processed, reflecting plate the top of printed circuit board is set and be provided with cooperated with LED lamp pass through it is logical
Hole；Top inside backboard is provided with diffuser plate and optical film；It is characterized by: being arranged between the diffuser plate and reflecting plate
There is light guide plate, the upper surface of light guide plate is set as Integral secondary lens, and secondary lens are set as continuous circular protrusions；It is guide-lighting
The lower surface of plate is provided with several receiving pits, and the surface for accommodating pit is provided with circular shaped lattice point, the receiving pit
Quantity and position are identical as the quantity of LED light and position.
Preferred: the receiving pit is set as hemispherical.
Preferred: the circular protrusions are the upper surface that sphere convex surface and rectangular array are arranged in light guide plate.
It is preferred: tangent each other between adjacent circular protrusions.
Preferred: the site is uniformly distributed and is covered with the inner surface of entire receiving pit.
Beneficial effects of the present invention；A kind of direct backlight source structure with Integral secondary lens, with traditional structure phase
Than: the upper surface of light guide plate is set as Integral secondary lens, and secondary lens are set as continuous circular protrusions；LED is scattered
Light source, carry out rescattering；By lens arrangement, light guide is preferably guided, so that the light of down straight aphototropism mode set is more
Add uniform scattering；Back can effectively can be thinned instead of original light mixing area with the light guide plate of Integral secondary lens simultaneously
Light source thickness；Lens light guide plate need to be only put into backboard when assembling, that is, can reach the purpose of scattering light source, without as single saturating
Mirror is installed one by one, effectively improves packaging efficiency；The lower surface of light guide plate is provided with several receiving pits, accommodates the surface of pit
It is provided with circular shaped lattice point, further reduces the thickness of backlight, saves space, while reinforcing the homogeneity of backlight；This hair
Bright compact-sized, stability is good, securely and reliably, is easily installed, and saves the time, saves space, simplified assembling process.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the partial enlarged view of Fig. 1 of the present invention；
Fig. 3 is that the present invention accommodates bowl configurations schematic diagram；
In figure: 1. backboards；2. printed circuit board；3.LED lamp；4. reflecting plate；5. diffuser plate；6. optical film；7. light guide plate；8.
Secondary lens；9. accommodating pit；10. site；11. circular protrusions.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and its advantageous effects, below in conjunction with attached drawing
And specific embodiment, the present invention will be described in further detail；
In the accompanying drawings: a kind of direct backlight source structure with Integral secondary lens, including backboard 1；Bottom inside backboard 1
It is provided with printed circuit board 2, LED light 3 is provided on printed circuit board 2, the top of printed circuit board 2 is arranged in simultaneously in reflecting plate 4
It is provided with the through-hole that cooperated with LED lamp 3 passes through；Top inside backboard 1 is provided with diffuser plate 5 and optical film 6；It is characterized by:
It is provided with light guide plate 7 between the diffuser plate 5 and reflecting plate 4, the upper surface of light guide plate 7 is set as Integral secondary lens 8,
Secondary lens 8 are set as continuous circular protrusions 11；The lower surface of light guide plate 7 is provided with several receiving pits 9, accommodates pit
9 surface is provided with circular shaped lattice point 10, and the quantity of the receiving pit 9 and position are identical as the quantity of LED light 3 and position.
The receiving pit 9 is set as hemispherical；The circular protrusions 11 are sphere convex surface and rectangular array is arranged
Cloth is in the upper surface of light guide plate 7；It is tangent each other between adjacent circular protrusions 11；The site 10 is uniformly distributed and is covered with whole
The inner surface of a receiving pit 9.
Specific implementation of the invention: the light guide plate with Integral secondary lens, using high PC material thoroughly；First according to client couple
The requirement of backlight optical property, carry out LED light arrangement design, according to the position of LED light, set accommodated on light guide plate it is recessed
The size and location in hole and secondary lens；Receiving pit not only can be used for accommodating LED light, but also can be used for emitting LED light
Light source carries out primary scattering.Receiving pit inner surface is provided with astigmatism site, and according to the characteristic of site, the net of setting is actually needed
Point distribution and density degree, need to design, to reach optical effect according to pH effect.
In plane between adjacent receiving pit, it is provided with reflective site, for the light source of plane will to be refracted to, then instead
It is emitted back towards in Integral secondary lens light guide plate.According to the characteristic of site, the network point distribution range of setting, size is actually needed and dredges
Close degree, needs when according to practical optical effect and pH effect are designed, to reach the optical effect of customer requirement.
When assembling on the basis of the positioning column on Integral secondary lens light guide plate, buckles on printed circuit board and be pre-designed
Positioning hole；The light that LED light issues is carried out via the site on the receiving pit of Integral secondary lens bottom surface of light guide plate
Refraction, light enter in Integral secondary lens light guide plate；Part light source is refracted into Integral secondary lens bottom surface of light guide plate, warp
By by the reflective site in plane, the light for refracting to bottom surface being passed again in the pit of the receiving LED plane adjacent with pit
It broadcasts and enters in Integral secondary lens light guide plate.Then group enters diffuser plate and optical film in order, optics can homogenous diffusion, it is whole
The homogeneity of body backlight reaches customer requirement.
By the above-mentioned means, can effectively and rapidly be adjusted to backlight optical effect, the complexity because of lens is avoided
Structure leads to the drawbacks such as the extension of development cycle.
Above-described embodiment is only intended to clearly illustrate description made by the present invention, and does not limit the embodiments,
To those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
Dynamic, there is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change thus amplified out
It is dynamic to be still in the protection scope of this invention.
Claims (5)
1. a kind of direct backlight source structure with Integral secondary lens, including backboard (1)；The internal bottom of backboard (1) is set
It is equipped with printed circuit board (2), is provided on printed circuit board (2) LED light (3), reflecting plate (4) is arranged in printed circuit board (2)
Top and be provided with the through-hole that cooperated with LED lamp (3) passes through；The internal top of backboard (1) is provided with diffuser plate (5) and optical film
(6)；It is characterized by: being provided with light guide plate (7) between the diffuser plate (5) and reflecting plate (4), the upper table of light guide plate (7)
Face is set as Integral secondary lens (8), and secondary lens (8) are set as continuous circular protrusions (11)；The following table of light guide plate (7)
Face is provided with several receivings pit (9), and the surface of receiving pit (9) is provided with circular shaped lattice point (10), the receiving pit
(9) quantity and position is identical as the quantity of LED light (3) and position.
2. a kind of direct backlight source structure with Integral secondary lens according to claim 1, it is characterised in that: institute
The receiving pit (9) stated is set as hemispherical.
3. a kind of direct backlight source structure with Integral secondary lens according to claim 1, it is characterised in that: institute
The circular protrusions (11) stated are the upper surface that sphere convex surface and rectangular array are arranged in light guide plate (7).
4. a kind of direct backlight source structure with Integral secondary lens according to claim 1, it is characterised in that: phase
It is tangent each other between adjacent circular protrusions (11).
5. a kind of direct backlight source structure with Integral secondary lens according to claim 1, it is characterised in that: institute
The site (10) stated is uniformly distributed and is covered with the inner surface of entire receiving pit (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009727.9A CN109491008A (en) | 2019-01-05 | 2019-01-05 | A kind of direct backlight source structure with Integral secondary lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910009727.9A CN109491008A (en) | 2019-01-05 | 2019-01-05 | A kind of direct backlight source structure with Integral secondary lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109491008A true CN109491008A (en) | 2019-03-19 |
Family
ID=65714019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910009727.9A Pending CN109491008A (en) | 2019-01-05 | 2019-01-05 | A kind of direct backlight source structure with Integral secondary lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109491008A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020238180A1 (en) * | 2019-05-27 | 2020-12-03 | 惠州市华星光电技术有限公司 | Thin lamp panel and fabrication method therefor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149523A (en) * | 2006-09-22 | 2008-03-26 | 欧立恩科技股份有限公司 | Backlight module with direct type light guide plate and lamp |
| CN203404659U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Secondary lens and LED direct type backlight module |
| CN103592705A (en) * | 2013-11-06 | 2014-02-19 | 苏州东显光电科技有限公司 | Diffusion plate, manufacturing method thereof and backlight module |
| CN106681052A (en) * | 2016-11-16 | 2017-05-17 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN107065061A (en) * | 2017-04-27 | 2017-08-18 | 武汉华星光电技术有限公司 | Light guide plate and direct type backlight assembly |
| CN107092051A (en) * | 2017-06-20 | 2017-08-25 | 合肥惠科金扬科技有限公司 | Light guide plate, backlight module and display device |
| CN108279530A (en) * | 2018-01-23 | 2018-07-13 | 深圳市隆利科技股份有限公司 | A kind of mobile phone bottom luminous backlight source |
| CN209296970U (en) * | 2019-01-05 | 2019-08-23 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
-
2019
- 2019-01-05 CN CN201910009727.9A patent/CN109491008A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149523A (en) * | 2006-09-22 | 2008-03-26 | 欧立恩科技股份有限公司 | Backlight module with direct type light guide plate and lamp |
| CN203404659U (en) * | 2013-08-27 | 2014-01-22 | 深圳Tcl新技术有限公司 | Secondary lens and LED direct type backlight module |
| CN103592705A (en) * | 2013-11-06 | 2014-02-19 | 苏州东显光电科技有限公司 | Diffusion plate, manufacturing method thereof and backlight module |
| CN106681052A (en) * | 2016-11-16 | 2017-05-17 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN107065061A (en) * | 2017-04-27 | 2017-08-18 | 武汉华星光电技术有限公司 | Light guide plate and direct type backlight assembly |
| CN107092051A (en) * | 2017-06-20 | 2017-08-25 | 合肥惠科金扬科技有限公司 | Light guide plate, backlight module and display device |
| CN108279530A (en) * | 2018-01-23 | 2018-07-13 | 深圳市隆利科技股份有限公司 | A kind of mobile phone bottom luminous backlight source |
| CN209296970U (en) * | 2019-01-05 | 2019-08-23 | 靖江市永盛光电科技有限公司 | A kind of direct backlight source structure with Integral secondary lens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020238180A1 (en) * | 2019-05-27 | 2020-12-03 | 惠州市华星光电技术有限公司 | Thin lamp panel and fabrication method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100586968B1 (en) | LED Package and Backlight Assembly for LCD | |
| CN202733781U (en) | Secondary optical lens for liquid crystal display backlight system, LED lens device and lighting system | |
| CN107966856A (en) | A kind of down straight aphototropism mode set and its liquid crystal display device | |
| CN202647490U (en) | Backlight module and display device | |
| CN108019625A (en) | A kind of down straight aphototropism mode set matrix light source | |
| CN104633521A (en) | Backlight module | |
| WO2021057750A1 (en) | Backlight module and display device | |
| KR101269591B1 (en) | Back light unit and liquid crystal display module using thereof | |
| JP2008166057A (en) | Plane light source device, display device, and plane lighting method | |
| KR20190021522A (en) | Light guide plate and backlight unit having the same | |
| CN111609346A (en) | A segmented projection blackboard light | |
| CN109976036A (en) | A kind of optical diaphragm, backlight module and display device | |
| CN201083928Y (en) | Backlight and its reflecting sheet | |
| CN209296970U (en) | A kind of direct backlight source structure with Integral secondary lens | |
| CN109491008A (en) | A kind of direct backlight source structure with Integral secondary lens | |
| TWI343489B (en) | Optical plate and backlight module using the same | |
| CN106989289B (en) | Direct type LED panel lamp | |
| CN206741162U (en) | LED lens of a direct type backlight module | |
| CN212456441U (en) | Direct type optical module with ultrahigh ink reflection | |
| CN209560120U (en) | Diffusion plate, direct-lit backlight module and display device | |
| CN215729190U (en) | Backlight module and display device | |
| CN106895326A (en) | A kind of lens and the lighting device using the lens | |
| CN219065937U (en) | Lens, backlight module and display device | |
| CN206682771U (en) | A kind of lighting device of lens and the application lens | |
| CN115933251A (en) | Reflecting cover structure capable of guiding light uniformly and backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190319 |
|
| RJ01 | Rejection of invention patent application after publication |