CN107390425A - A kind of straight-down negative LED light source module, backlight module and display panel - Google Patents
A kind of straight-down negative LED light source module, backlight module and display panel Download PDFInfo
- Publication number
- CN107390425A CN107390425A CN201710368025.0A CN201710368025A CN107390425A CN 107390425 A CN107390425 A CN 107390425A CN 201710368025 A CN201710368025 A CN 201710368025A CN 107390425 A CN107390425 A CN 107390425A
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- Prior art keywords
- light source
- led light
- straight
- module
- down negative
- 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
-
- 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
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
Abstract
The invention discloses a kind of straight-down negative LED light source module, backlight module and display panel.Wherein light source module includes LED light source and cover sets the encapsulating structure of the LED light source；The encapsulating structure includes transparent base and the reflector element towards LED light source one side for concave structure；The LED light source is located at one side of the transparent base towards the reflector element and the focal point positioned at the reflector element.The light source module is in being independently arranged, through the light source module group for being spliced to form backlight module.Based on this, display designer is not required to redesign light source again, only need to use LED light source module, rational joint is done according to display sizes.Also, because LED module has been covered with whole display area, therefore, extra reflecting piece is not needed with the backlight module of this invention.
Description
Technical field
The invention belongs to LED light source domain, and in particular to a kind of straight-down negative LED light source module, backlight module and display surface
Plate.
Background technology
As shown in figure 1, the backlight module of available liquid crystal display be all designer first according to conditions such as the sizes of display,
Light source arrangement, reflecting piece of arranging in pairs or groups afterwards are set on substrate.So designer is required for according to display not every time
Together, the backlight module of display is redesigned.Process is complicated and cumbersome.
As shown in Fig. 2 existing general straight-down negative LED light source is that LED light sources 12 are installed in circuit substrate 11, above again
Sequentially there are supporting framework 13 and lens top cap 14.Such light source design, light dissipates into light directly up after LED light extractions
Learn film group and liquid crystal mould is fast, form a complete direct type backlighting system.
The content of the invention
It is an object of the present invention to provide a kind of straight-down negative LED light source module, backlight module and display panel, with
Solve in the prior art, it is necessary to according to the difference of display, redesign the problem of its backlight module, especially light source are arranged.
To achieve these goals, the invention provides a kind of straight-down negative LED light source module, including LED light sources and cover to set
The encapsulating structure of the LED light source；The encapsulating structure includes transparent base and tied towards LED light source one side for concave surface
The reflector element of structure；The LED light source towards the one side of the reflector element and is located at the reflection located at the transparent base
The focal point of unit.
Preferably, the encapsulating structure also includes the support frame between the transparent base and the reflector element
Structure.
Preferably, the reflector element is fresnel reflecting mirror.
Preferably, the concave structure of the reflector element is arc surface or parabola face.
Preferably, the transparent base inside and/or the transparent substrate surface are provided with diffusion structure.
Preferably, the diffusion structure is at least distributed in week of the LED light source at the transparent base upright projection
Side.
Preferably, the transparent base is provided with groove, and is filled with the groove and is used to enter with the LED light source
The transparent conductive material of row electrical connection.
Preferably, the diffusion structure passes through at least one of net-point printing, doping diffusion particle, surface micro-structure mode
Formed.
Present invention also offers a kind of backlight module, the backlight module is multiple as described above straight including what is spliced mutually
Following formula LED light source module.
Further aspect of the present invention additionally provides a kind of display panel, and the display panel includes backlight mould as described above
Group.
Compared with prior art, the present invention has the advantages that：
The light source module of the present invention is in independence and standardized module, therefore, when designing backlight module, it is only necessary to according to aobvious
Show the different splicings for carrying out standard sources module of device, without redesigning.And LED module has been covered with whole display surface
Product, therefore, extra reflecting piece is not needed with the backlight module of this invention.
Brief description of the drawings
The Figure of description for forming the part of the present invention is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not form inappropriate limitation of the present invention.
Fig. 1 is the light source design schematic diagram of prior art display；
Fig. 2 is directly-down light source structure of the prior art；
Fig. 3 and 4 is directly-down light source standard module construction of the present invention；
Fig. 5 is the light source design schematic diagram of inventive display；
Fig. 6 is design of backlight module structure chart of the present invention.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two ", " on ", " under " etc. is for distinguishing similar object, without for describing specific order or precedence.It should manage
The data that solution so uses can exchange in the appropriate case, so as to embodiments of the invention described herein.In addition, term
" comprising " and " having " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps
Rapid or unit process, method, system, product or equipment are not necessarily limited to those steps clearly listed or unit, but can
Including not listing clearly or for the intrinsic other steps of these processes, method, product or equipment or unit.
As shown in figure 3, be straight-down negative LED light source module provided by the invention, including LED light source 22 and cover set the LED
The encapsulating structure of light source, encapsulating structure include transparent base 21 and the reflection towards LED light source one side for concave structure
Unit 23, LED light source 22 are located on transparent base 21.Reflector element 23 forms an enclosed construction with transparent base 21, and cover is set
In LED light source 22.When LED light source 22 is located at the focus of reflector element 23, reflected light will be upwardly into optical film in directional light
Group is fast with liquid crystal mould.Fig. 3 shows an independent direct-type backlight LED light source standard module.Specifically, concave structure is worked as
For arc surface when, focal length be radius of curvature half, according to geometric optics, when light source is located at focus, paraxial rays is with parallel
Light mode is reflected, and far-off axle light rays will also be reflected with low-angle, therefore rising angle is direct compared to LED light source in the prior art
Luminous rising angle tool improves significantly；And when concave structure is parabola face, according to geometric optics, positioned at focus
The light that light source is sent is reflected with directional light.The spot light of the structure, before its light enters diffuser plate, reflector element 23 is first
Pre- Homogenization Treatments have been carried out to LED light source, therefore, the diffuser plate for the low haze that can arrange in pairs or groups, and then improve light extraction benefit.This
Outside, because light source has been in after reflection flat shape light, the ratio that light spreads to big visual angle is reduced, the light of positive angle can be improved
Intensity.Therefore the design of the present invention can improve the brightness of display, and reach the effect of energy-conservation.
As shown in figure 4, be the LED light source module of another structure, by LED light source 22, transparent base 21, supporting framework 3,
Reflector element 4 is formed.Wherein transparent base 21, supporting framework 3, reflector element 4 form an envelope for covering at LED light source 22
Close structure.Wherein transparent base, supporting framework can be integrally formed, and reflector element can be the Fresnel reflection shown in Fig. 4
Mirror is the reflecting surface of Fresnel structure, and the reflecting surface can be by realizing in Fresnel structure plating metal on surface such as silver, aluminium.Its
Function is, the directional light of reflection can uniform irradiation cover area in total.
Light source standard module is done based on the present invention, spliced arrangement can be used, seamless covers whole display institute
Space required, such as Fig. 5.Under such design, display designer is not required to redesign light source again, only need to use LED light
Source standard module, rational joint is done according to display sizes.Also, because LED module has been covered with whole display area, because
This, extra reflecting piece is not needed with the backlight module of this invention.
The base material of the present invention can be transparent base, and the transparent base can be specifically the transparent base such as PET, PC, PMMA
Material, preferably PET classes flexible and transparent base material.Groove can be over the transparent substrate set, filling transparent conductive material in it, used
It is powered in LED light source.The transparent conductive material, ITO, Nano Silver or graphene etc. can be selected from.
It is contemplated that the light that LED light source is sent is reflexed on transparent base after reflecting curved surface reflects in directional light, reflection
A part of light returned will be stopped by LED light source, cause the optical effect of straight-down negative LED light source assemblies can not reach
Most preferably.To make straight-down negative LED light source component that there is the more preferably optical appearance present invention to enter on the surface of transparent base and/or inside
Row DIFFUSION TREATMENT, there is provided diffusion structure.Lid diffusion structure can specifically use net-point printing, doping diffusion particle, surface micro-
The modes such as structure are formed.
Diffusion structure can be specifically arranged on to the inside of transparent base, directional light expands after diffusion structure is reached
Dissipate, a part of light will scatter to the region blocked by LED light source, so as to make up the missing of the zonal ray.
Diffusion structure can also be arranged on the surface of transparent base, directional light occurs when inciding diffusing structure
Scattering, light are distributed to all angles, are partly into the region stopped by LED light source, so as to make up lacking for the zonal ray
Lose.
It should be noted that in preferred scheme of the present invention, to ensure that the scattering at most directional light and LED light source needs
Will, diffusion structure is only set on the periphery of the upright projection of transparent base in LED light source, the determination of its peripheral extent is with can be more
Mend and be limited by the light that LED light source stops.
A kind of as shown in fig. 6, implementation of the backlight module provided for the present invention based on above-mentioned straight-down negative LED light source module
Example.Being cascading in the LED light source module of the splicing has diffuser plate, diffusion barrier and brightness enhancement film.Compared to existing knot
Structure, it no longer needs reflecting piece.
Present invention additionally comprises a kind of display panel, and it includes the backlight module of said structure.
It should be noted that embodiment is only the explanation to technical solution of the present invention, should not be managed
Solve as the restriction to technical solution of the present invention, any only to make what is locally changed using the substantive content of the invention of the present invention, Reng Yingluo
Enter in protection scope of the present invention.
Claims (10)
1. a kind of straight-down negative LED light source module, it is characterised in that the encapsulation knot of the LED light source is set including LED light source and cover
Structure；The encapsulating structure includes transparent base and the reflector element towards LED light source one side for concave structure；It is described
LED light source is located at one side of the transparent base towards the reflector element and the focal point positioned at the reflector element.
2. straight-down negative LED light source module as claimed in claim 1, it is characterised in that the encapsulating structure also includes being located at institute
State the supporting framework between transparent base and the reflector element.
3. straight-down negative LED light source module as claimed in claim 1, it is characterised in that the reflector element is Fresnel reflection
Mirror.
4. straight-down negative LED light source module as claimed in claim 1, it is characterised in that the concave structure of the reflector element is
Arc surface or parabola face.
5. straight-down negative LED light source module as claimed in claim 1, it is characterised in that inside the transparent base and/or described
Transparent substrate surface is provided with diffusion structure.
6. straight-down negative LED light source module as claimed in claim 4, it is characterised in that the diffusion structure is at least distributed in institute
State periphery of the LED light source at the transparent base upright projection.
7. straight-down negative LED light source module as claimed in claim 2, it is characterised in that the transparent base is provided with groove, and
The transparent conductive material for being used for being electrically connected with the LED light source is filled with the groove.
8. straight-down negative LED light source module as claimed in claim 1, it is characterised in that the diffusion structure by net-point printing,
At least one of doping diffusion particle, surface micro-structure mode is formed.
9. a kind of backlight module, it is characterised in that the backlight module is included in multiple 1-8 such as claim for splicing mutually
Straight-down negative LED light source module described in any one.
10. a kind of display panel, it is characterised in that the display panel includes backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368025.0A CN107390425A (en) | 2017-05-23 | 2017-05-23 | A kind of straight-down negative LED light source module, backlight module and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710368025.0A CN107390425A (en) | 2017-05-23 | 2017-05-23 | A kind of straight-down negative LED light source module, backlight module and display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107390425A true CN107390425A (en) | 2017-11-24 |
Family
ID=60338410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710368025.0A Withdrawn CN107390425A (en) | 2017-05-23 | 2017-05-23 | A kind of straight-down negative LED light source module, backlight module and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107390425A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445789A (en) * | 2020-04-27 | 2020-07-24 | Tcl华星光电技术有限公司 | Display device and splicing device |
| CN115728992A (en) * | 2022-11-24 | 2023-03-03 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
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| WO2001084210A1 (en) * | 2000-05-01 | 2001-11-08 | Alden Ray M | Variable fresnel type structures and process |
| WO2002091039A1 (en) * | 2001-05-04 | 2002-11-14 | Honeywell, Inc. | Non-planar fresnel reflector arrays, mold structures and mold patterns for eliminating negative draft during molding |
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| CN101071232A (en) * | 2006-05-10 | 2007-11-14 | 奇美电子股份有限公司 | Planar lightsource device and its mkaing method, and liquid crystal display device with same |
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| CN101457899A (en) * | 2007-12-11 | 2009-06-17 | 精碟科技股份有限公司 | Led light structure without multi shadow |
| CN201582724U (en) * | 2009-12-18 | 2010-09-15 | 重庆三弓科技发展有限公司 | Led lampshade |
| CN202018534U (en) * | 2011-03-09 | 2011-10-26 | 刘阳 | Fresnel gathering device |
| CN202472013U (en) * | 2011-12-29 | 2012-10-03 | 上海晶电新能源有限公司 | Fresnel-type condensation reflector and Fresnel-type solar hot water system |
| CN103697376A (en) * | 2013-12-09 | 2014-04-02 | 京东方科技集团股份有限公司 | Backlight source and display device |
| CN105242454A (en) * | 2015-10-15 | 2016-01-13 | 广州创维平面显示科技有限公司 | Ultrathin direct illumination-type backlight module and liquid crystal display device |
| CN106597755A (en) * | 2017-03-06 | 2017-04-26 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN207281423U (en) * | 2017-05-23 | 2018-04-27 | 张家港康得新光电材料有限公司 | A kind of straight-down negative LED light source module, backlight module and display panel |
-
2017
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| US4975814A (en) * | 1988-08-10 | 1990-12-04 | Telefunken Electronic Gmbh | Wide-area lamp |
| WO2001084210A1 (en) * | 2000-05-01 | 2001-11-08 | Alden Ray M | Variable fresnel type structures and process |
| WO2002091039A1 (en) * | 2001-05-04 | 2002-11-14 | Honeywell, Inc. | Non-planar fresnel reflector arrays, mold structures and mold patterns for eliminating negative draft during molding |
| CN101063518A (en) * | 2006-04-29 | 2007-10-31 | 财团法人工业技术研究院 | Reflection type light projector device |
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| CN201083929Y (en) * | 2007-08-07 | 2008-07-09 | 邦泰复合材料股份有限公司 | Backlight module group reflecting plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111445789A (en) * | 2020-04-27 | 2020-07-24 | Tcl华星光电技术有限公司 | Display device and splicing device |
| CN115728992A (en) * | 2022-11-24 | 2023-03-03 | 深圳创维－Rgb电子有限公司 | Backlight module and display device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171124 |