CN107748463A - A kind of backlight module that can improve light utilization - Google Patents
A kind of backlight module that can improve light utilization Download PDFInfo
- Publication number
- CN107748463A CN107748463A CN201710763283.9A CN201710763283A CN107748463A CN 107748463 A CN107748463 A CN 107748463A CN 201710763283 A CN201710763283 A CN 201710763283A CN 107748463 A CN107748463 A CN 107748463A
- Authority
- CN
- China
- Prior art keywords
- diffuser plate
- backlight module
- light utilization
- improve light
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
Abstract
The present invention relates to back light model setting technology field, more particularly to a kind of backlight module that can improve light utilization, its structure includes back frame, the backlight being arranged in back frame, is arranged at the light guide plate of backlight side and the diffuser plate being arranged on light guide plate, diffuser plate includes incidence surface and exiting surface, the exiting surface of diffuser plate is arranged to corrugated surface, and corrugated surface is spliced by several shape identical arcs.Because the exiting surface of diffuser plate is arranged to corrugated surface, corrugated surface is spliced by several shape identical arc convex and arc-shaped concave, and then cause light that diffraction injection diffuser plate can occur at exiting surface after entering diffuser plate, and then the loss of luminous energy is reduced, substantially increase light utilization.
Description
Technical field
The present invention relates to back light model setting technology field, and in particular to a kind of backlight module that can improve light utilization.
Background technology
The structure of liquid crystal display device includes liquid crystal panel and backlight module.Liquid crystal panel it is not luminous in itself, it is necessary to by
The light source that backlight module provides normally shows image, and therefore, backlight module turns into one of key component of liquid crystal display device.
Different according to the incidence of light source, backlight module can be divided into down straight aphototropism mode set and side entrance back module.Wherein, side
It is the back plate edges that backlight LED lamp bar is arranged to liquid crystal panel side rear to enter formula backlight module, the light that LED light bar is sent
Enter light guide plate from the incidence surface of light guide plate side, projected after reflection and diffusion from light guide plate exiting surface, then via optical film
Piece group, liquid crystal panel is supplied to form area source.
Backlight module of the prior art, its light source are usually to be scattered diffusion via diffuser plate.However, existing skill
In art, when the light that light source is sent is projected after diffuser plate by the exiting surface of diffuser plate, because light is larger by refractive index
Diffuser plate enter the less air dielectric of refractive index in, therefore, can be in the light extraction of diffuser plate into the part light after diffuser plate
It is totally reflected at face, and causes the part light to project diffuser plate, and then cause the light transmittance of diffuser plate to decline, that is, is led
Cause light utilization relatively low.
The content of the invention
Above-mentioned technical problem be present for prior art, the present invention provides a kind of backlight mould that can improve light utilization
Group.
To achieve the above object, the present invention provides following technical scheme：
A kind of backlight module that can improve light utilization is provided, including back frame, be arranged in the back frame backlight,
The diffuser plate for being arranged at the light guide plate of the backlight side and being arranged on the light guide plate, it is characterised in that：The expansion
Fall apart including incidence surface and exiting surface, the exiting surface of the diffuser plate is arranged to corrugated surface, and the corrugated surface is by several shapes
Identical arc convex and arc-shaped concave are spliced.
The corrugated surface is spliced by half equal rounded convex of several radiuses and semicircular concave.
The radius of the semicircle is arranged to 0.01mm~3mm.
The radius of the semicircle is arranged to 1mm.
The radius of the semicircle is arranged to 0.5mm.
The corrugated surface and the diffuser plate are integrative-structures.
The diffuser plate is diffuser plate made of PP plastics.
The diffuser plate is diffuser plate made of PET.
The diffuser plate is diffuser plate made of HDPE plastic.
Beneficial effects of the present invention：
(1) a kind of backlight module that can improve light utilization of the invention, including back frame, the backlight that is arranged in back frame
Source, the light guide plate for being arranged at backlight side and the diffuser plate being arranged on light guide plate, diffuser plate include incidence surface and light extraction
Face, the exiting surface of diffuser plate are arranged to corrugated surface, and corrugated surface is spliced by several shape identical arcs.Due to diffuser plate
Exiting surface be arranged to corrugated surface, corrugated surface is spliced by several shape identical arc convex and arc-shaped concave, and then
So that after entering diffuser plate diffraction injection diffuser plate can occur at exiting surface for light, and then reduce the damage of luminous energy
Consumption, substantially increases light utilization.
(2) a kind of backlight module that can improve light utilization of the invention, has simple in construction, and production cost is low, and
The characteristics of being adapted to large-scale production.
Brief description of the drawings
Fig. 1 is a kind of structural representation of backlight module that can improve light utilization of the present invention.
Reference：
Back frame 1；
Backlight 2；
Light guide plate 3；
Diffuser plate 4, incidence surface 41, exiting surface 42, arc convex 401, arc-shaped concave 402.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, the present invention is described in detail.
Embodiment 1.
A kind of backlight module that can improve light utilization of the present embodiment, as shown in figure 1, including back frame 1, being arranged at the back of the body
Backlight 2 in frame 1, the diffuser plate 4 for being arranged at the light guide plate 3 of the side of backlight 2 and being arranged on light guide plate 3, diffuser plate
4 include incidence surface 41 and exiting surface 42, and the exiting surface 42 of diffuser plate 4 is arranged to corrugated surface, and corrugated surface is identical by several shapes
Arc 401 be spliced.Because the exiting surface 42 of diffuser plate 4 is arranged to corrugated surface, corrugated surface is by several shape identicals
Arc convex 401 and arc-shaped concave 402 are spliced, and then light can be sent out after entering diffuser plate 4 at exiting surface 42
Diffuser plate 4 is projected in raw diffraction, and then reduces the loss of luminous energy, substantially increases light utilization.
In the present embodiment, corrugated surface is spliced by half equal rounded convex of several radiuses and semicircular concave, and then is made
Diffraction injection diffuser plate 4 can be occurred at exiting surface 42 by obtaining after light enters diffuser plate 4, and then reduce the damage of luminous energy
Consumption, substantially increases light utilization.
In the present embodiment, the radius of semicircle is arranged to 1mm.The corrugated surface that the semicircle of the radius is spliced causes light to enter
Diffraction injection diffuser plate 4 can occur at exiting surface 42 after entering diffuser plate 4, and then reduce the loss of luminous energy, significantly
Improve light utilization.
In the present embodiment, corrugated surface and diffuser plate 42 are integrative-structures, and then cause light enters after diffuser plate 4 can be
Diffraction occurs at exiting surface 42 and projects diffuser plate 4, and then reduces the loss of luminous energy, substantially increases light utilization.
In the present embodiment, diffuser plate 4 is diffuser plate 4 made of PP plastics, and diffuser plate 4 can be easy to light made of PP plastics
The scattering diffusion of line, and then the loss of luminous energy is reduced, further increase light utilization.
Embodiment 2.
A kind of embodiment 2 of backlight module that can improve light utilization of the present invention, the present embodiment and embodiment 1 are not
It is with part, in the present embodiment, the radius of semicircle is arranged to 0.5mm, and the corrugated surface that the semicircle of the radius is spliced causes
After entering diffuser plate 4 diffraction injection diffuser plate 4 can occur at exiting surface 42 for light, and then reduce the damage of luminous energy
Consumption, substantially increases light utilization.In the present embodiment, diffuser plate 4 is diffuser plate 4, the PET system made of PET
Into diffuser plate 4 scattering of light can be easy to spread, and then the loss of luminous energy can be reduced, further increase light utilization
Rate.The other structures and operation principle of the present embodiment are same as Example 1, will not be repeated here.
Embodiment 3.
A kind of embodiment 3 of backlight module that can improve light utilization of the present invention, the present embodiment and embodiment 1 are not
It is with part, in the present embodiment, the radius of semicircle is arranged to 0.01mm, and the corrugated surface that the semicircle of the radius is spliced causes
After entering diffuser plate 4 diffraction injection diffuser plate 4 can occur at exiting surface 42 for light, and then reduce the damage of luminous energy
Consumption, substantially increases light utilization.In the present embodiment, diffuser plate 4 is diffuser plate 4 made of HDPE plastic, the HDPE plastic
Manufactured diffuser plate 4 can be easy to the scattering of light to spread, and then can reduce the loss of luminous energy, further increase light
Utilization rate.The other structures and operation principle of the present embodiment are same as Example 1, will not be repeated here.
Embodiment 4.
A kind of embodiment 4 of backlight module that can improve light utilization of the present invention, the present embodiment and embodiment 1 are not
It is with part, in the present embodiment, the radius of semicircle is arranged to 3mm, and the corrugated surface that the semicircle of the radius is spliced causes light
After entering diffuser plate 4 diffraction injection diffuser plate 4 can occur at exiting surface 42 for line, and then reduce the loss of luminous energy,
Substantially increase light utilization.The other structures and operation principle of the present embodiment are same as Example 1, will not be repeated here.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of scope is protected, although being explained with reference to preferred embodiment to the present invention, one of ordinary skill in the art should
Work as understanding, technical scheme can be modified or equivalent substitution, without departing from the reality of technical solution of the present invention
Matter and scope.
Claims (9)
1. a kind of backlight module that can improve light utilization, including back frame, be arranged in the back frame backlight, be arranged at
The light guide plate of the backlight side and the diffuser plate being arranged on the light guide plate, it is characterised in that：The diffuser plate bag
Incidence surface and exiting surface are included, the exiting surface of the diffuser plate is arranged to corrugated surface, and the corrugated surface is by several shape identicals
Arc convex and arc-shaped concave are spliced.
A kind of 2. backlight module that can improve light utilization according to claim 1, it is characterised in that：The corrugated surface
It is spliced by half equal rounded convex of several radiuses and semicircular concave.
A kind of 3. backlight module that can improve light utilization according to claim 2, it is characterised in that：The semicircle
Radius is arranged to 0.01mm~3mm.
A kind of 4. backlight module that can improve light utilization according to claim 3, it is characterised in that：The semicircle
Radius is arranged to 1mm.
A kind of 5. backlight module that can improve light utilization according to claim 3, it is characterised in that：The semicircle
Radius is arranged to 0.5mm.
A kind of 6. backlight module that can improve light utilization according to claim 1, it is characterised in that：The corrugated surface
It is integrative-structure with the diffuser plate.
A kind of 7. backlight module that can improve light utilization according to claim 1, it is characterised in that：The diffuser plate
For diffuser plate made of PP plastics.
A kind of 8. backlight module that can improve light utilization according to claim 1, it is characterised in that：The diffuser plate
For diffuser plate made of PET.
A kind of 9. backlight module that can improve light utilization according to claim 1, it is characterised in that：The diffuser plate
For diffuser plate made of HDPE plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763283.9A CN107748463A (en) | 2017-08-30 | 2017-08-30 | A kind of backlight module that can improve light utilization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710763283.9A CN107748463A (en) | 2017-08-30 | 2017-08-30 | A kind of backlight module that can improve light utilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107748463A true CN107748463A (en) | 2018-03-02 |
Family
ID=61254734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710763283.9A Pending CN107748463A (en) | 2017-08-30 | 2017-08-30 | A kind of backlight module that can improve light utilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107748463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188752A (en) * | 2018-09-30 | 2019-01-11 | 东莞市托普莱斯光电技术有限公司 | It is a kind of to be avoided that brightness unevenness and LCD TV backlight mould group convenient for disassembly and assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549027A (en) * | 2003-05-21 | 2004-11-24 | 力捷电脑股份有限公司 | Sidelight type back light module and liquid crystal display device |
| KR20060007518A (en) * | 2004-07-20 | 2006-01-26 | 비오이 하이디스 테크놀로지 주식회사 | Back light unit for lcd |
| CN1922509A (en) * | 2004-02-27 | 2007-02-28 | 通用电气公司 | Diffuser for flat panel display |
| CN201050739Y (en) * | 2007-06-20 | 2008-04-23 | 张秀琴 | Light conducting board and liquid crystal display |
| CN101216637A (en) * | 2004-12-21 | 2008-07-09 | 三星电子株式会社 | Backlight assembly and display device having the same |
| CN102213788A (en) * | 2010-03-26 | 2011-10-12 | 友辉光电股份有限公司 | Optical substrates having light collimating and diffusion structures |
| CN202048503U (en) * | 2011-03-08 | 2011-11-23 | 广东泰德科技有限公司 | LED (Light-Emitting Diode) backlight module diffusion board |
-
2017
- 2017-08-30 CN CN201710763283.9A patent/CN107748463A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1549027A (en) * | 2003-05-21 | 2004-11-24 | 力捷电脑股份有限公司 | Sidelight type back light module and liquid crystal display device |
| CN1922509A (en) * | 2004-02-27 | 2007-02-28 | 通用电气公司 | Diffuser for flat panel display |
| KR20060007518A (en) * | 2004-07-20 | 2006-01-26 | 비오이 하이디스 테크놀로지 주식회사 | Back light unit for lcd |
| CN101216637A (en) * | 2004-12-21 | 2008-07-09 | 三星电子株式会社 | Backlight assembly and display device having the same |
| CN201050739Y (en) * | 2007-06-20 | 2008-04-23 | 张秀琴 | Light conducting board and liquid crystal display |
| CN102213788A (en) * | 2010-03-26 | 2011-10-12 | 友辉光电股份有限公司 | Optical substrates having light collimating and diffusion structures |
| CN202048503U (en) * | 2011-03-08 | 2011-11-23 | 广东泰德科技有限公司 | LED (Light-Emitting Diode) backlight module diffusion board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188752A (en) * | 2018-09-30 | 2019-01-11 | 东莞市托普莱斯光电技术有限公司 | It is a kind of to be avoided that brightness unevenness and LCD TV backlight mould group convenient for disassembly and assembly |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180302 |