CN107884869A - A kind of backlight module of light leakage light guide plate - Google Patents
A kind of backlight module of light leakage light guide plate Download PDFInfo
- Publication number
- CN107884869A CN107884869A CN201711215173.5A CN201711215173A CN107884869A CN 107884869 A CN107884869 A CN 107884869A CN 201711215173 A CN201711215173 A CN 201711215173A CN 107884869 A CN107884869 A CN 107884869A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- light
- backlight module
- lens
- 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
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/003—Lens or lenticular sheet or layer
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
Abstract
The present invention discloses a kind of backlight module of light leakage light guide plate, including：Support, light source, reflecting paper, light guide plate, diffuser plate；The support is L-type, and perpendicular to long side, light source is affixed on the right side of the short side of support support short side, and reflecting paper is positioned over long side upper surface, and as in reflecting paper, diffuser plate is placed on above light guide plate light guide plate；Lens are provided with the left of the light guide plate, light guide plate bottom is provided with site.The present invention has the function that frivolous, light leakage, highlighted.The present invention makes the light for the diffusion that light source sends, is converged to via the lens on light guide plate in light guide plate, effectively reduce the gap light leak of light source and light guide plate, reduce luminance loss by increasing lens method on the left of light guide plate；Meanwhile on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is become thinner.
Description
Technical field
It is especially a kind of that there is frivolous, light leakage, highlighted the present invention relates to a kind of backlight module of light leakage light guide plate
The backlight module of light leakage light guide plate.
Background technology
Because information products all develop towards light, thin, short, small target, slimming concept continues as display device
The direction of effort.Because of the trend of slimming, the thickness of display device is also restricted, and the key whether display device is thinned
One of factor is backlight module thickness.
In recent years, in display industry, backlight module (BLU：Back L i ght Un it) it is divided into straight-down negative and side
Enter formula.Down straight aphototropism mode set makes the light source positioned at screen dead astern be projected to liquid crystal panel；Side entrance back module is positioned at screen
Curtain edge, the light source of screen side is guided liquid crystal panel into, and projected to display pannel.Side entrance back module institute accounting
Example is increasing.More ultra-thin in side entering type product appearance, accounting is also increasing.Edge-type light guide plate lower surface is generally set
There is the site of shaping to realize the reflection of light, make light is more uniform to be irradiated on blooming piece.
The material of light guide plate is translucent resin etc., and the light that light guide plate is injected from light-emitting component is propagated in light guide plate.
Light guide plate is provided with the lattice point structures such as ditch, projection or printed article.Using the light that the site is propagated in light guide plate to liquid crystal panel
Project side.In the light to be changed by site and direct of travel, a part of light is penetrated from bottom surface of light guide plate to outside light guide plate
Go out.In the bottom surface side of light guide plate formed with reflecting plate, from the light that bottom surface is projected by baffle reflection to light guide plate side, and court
To liquid crystal panel side.
Fig. 1 is the structural representation of prior art backlight module, and backlight module mainly includes in the prior art：Support 1, light
Source 2, reflective sheeting 3, light guide plate 4, diffuser plate 5, its medium-height trestle 1 are L-type structure, and light source 2 is pasted onto the right side of the short side 11 of support 1
Wall, light source 2 are made up of multiple LED being pasted onto on pcb board；Reflecting paper 3 is placed in the upper surface of long side 12 of support 1, and reflecting paper 3 will
The light scattered in reflecting paper 3 is reflected back on light guide plate 4；Light guide plate 4 is placed on above reflecting paper and the right side of light source 2, light guide plate 4
Lower section is provided with the site 41 convexed to form of matrix arrangement, and line source is changed into area source by light guide plate 4；Diffuser plate 5 is placed
In light guide plate upper surface, the area source of the top of light guide plate 4 outgoing is further uniformly dispersed by diffuser plate 5.
When the light that light source 2 is sent, without light guide plate 4 and diffuser plate 5, direct irradiation projects above backlight module,
Or enter light guide plate 4 and be reflected back the left side of light guide plate 4 again, and light guide plate 4 is reflected, without diffuser plate 5 then from backlight module
Project top.Backlight module edge brightness light leak is caused, energy of light source loses, and reduces the mean flow rate of backlight module.
The content of the invention
It is an object of the invention to provide it is a kind of with frivolous, light leakage, highlighted light leakage light guide plate backlight module,
Improve the illuminance of light guide plate.
To achieve these goals, the invention provides a kind of backlight module of light leakage light guide plate, including：Support, light
Source, reflecting paper, light guide plate, diffuser plate；
The support is L-type, and perpendicular to long side, light source is affixed on the right side of support short side the short side of support, and reflecting paper is positioned over
Long side upper surface, as in reflecting paper, diffuser plate is placed on above light guide plate light guide plate；Lens are provided with the left of the light guide plate；
Alternatively, the lens set on the left of the light guide plate are raised for half elliptic；
Alternatively, the lens set on the left of the light guide plate are rectangular preiection, and are provided with the left of rectangular preiection and light
Rectangular recess corresponding to source；
Alternatively, the lens set on the left of the light guide plate are rectangular preiection, and raised left side is provided with corresponding to light source and bored
Connected in star, and setting and the conical cavity in conical socket direction on the right side of conical socket；
Alternatively, the light guide plate bottom is provided with site, and lattice point structure can be semi-cylindrical hill, circular pit, ring
Shape projection or bar shaped salient point；
Alternatively, the site is highly 50~200um, and neighbour node is not overlapping；
Alternatively, the light source is that multiple LED are integrated in the LED light bar formed on pcb board；
Alternatively, 0.1~0.2mm of thickness range of the reflecting paper.
The invention provides a kind of backlight module of light leakage light guide plate to have the function that frivolous, light leakage, highlighted.This hair
It is bright to be arranged to lens on the left of light guide plate, the light that light source is sent more is entered inside light guide plate, and pass through diffuser plate, from
Uniformly projected above backlight module；By increasing lens method on the left of light guide plate, make the light for the diffusion that light source sends, via
Lens on light guide plate are converged in light guide plate, effectively reduce the gap light leak of light source and light guide plate, reduce luminance loss；Together
When, on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is become thinner.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of prior art backlight module；
Fig. 2 is the light leakage back light module unit structure schematic diagram of the embodiment of the present invention one；
Fig. 3 is the light leakage back light module unit structure schematic diagram of the embodiment of the present invention two；
Fig. 4 is the light leakage back light module unit structure schematic diagram of the embodiment of the present invention three.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with the accompanying drawings to the present invention
Embodiment be described in detail.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other to implement, therefore the present invention is not limited by following public specific embodiment
System.
Just as described in the background section, backlight module includes support, light source, reflecting paper, light guide plate, expansion in the prior art
Fall apart, the support is L-type, and perpendicular to long side, light source is affixed on the right side of support short side support short side, and reflecting paper is positioned in long side
Surface, as in reflecting paper, diffuser plate is placed on above light guide plate light guide plate；Lens, light guide plate 4 are provided with the left of the light guide plate
Bottom is provided with site；
Embodiment one
As shown in Fig. 2 present embodiments provide a kind of backlight module of light leakage light guide plate, including it is support 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The support 1 includes support short side 11, support long side 12, and it is short that the left side top of support long side 12 is vertically arranged with support
Side 11；The left side of support short side 11 is provided with light source 2；The upper surface of support long side 12 is provided with reflecting paper 3, reflecting paper 3
Top is placed with light guide plate 4, and the lower surface of light guide plate 4 is provided with site 41, diffuser plate 5 is provided with the antifouling upper surface of light guide plate 4；
The left side of light guide plate 4 is provided with the raised lens 42 of half elliptic, and lens 42 are contacted with light source 2, and the bottom of light guide plate 4 is provided with
Site 41；
Operation principle：
Exiting surface of the light that light source 2 is sent through the right side of light source 2 projects, and enters light guide plate 4 by the left side incidence surface of lens 42
It is interior；Light is behind the upper surface of light guide plate 4 and right flank reflection, and light is after the lower section optical surface of site 41, a part of light
It is reflected back in light guide plate 4, a part of light refracts through the lower section optical surface of site 41, is irradiated to reflecting paper 3, antifouling light guide plate 4
Between gap in, the reflective surface into the light in gap in reflecting paper upper surface is reflected in dirty light guide plate 4；In light guide plate 4
Light pass through internal refraction and reflection, finally projected from the exiting surface of the upper surface of light guide plate 4, and the process following table of diffuser plate 5
The incidence surface in face enters in diffuser plate 5, then uniformly projected via the upper surface exiting surface of diffuser plate 5 perpendicular to diffuser plate 5；
The lens 42 reduce the gap that the left side of light guide plate 4 is formed with the right side of light source 2, and gap shortening light in gap, which enters, leads
The light path of tabula rasa 2, reduce the quantity that light projects from the top edge of light guide plate 4.
Embodiment two
As shown in figure 3, present embodiments provide a kind of backlight module of light leakage light guide plate, including it is support 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The present embodiment is that the lens 42 that the left side of light guide plate 4 is set are rectangular preiection with the main distinction of embodiment one, and
Rectangular recess 421 corresponding with light source 2 is provided with the left of rectangular preiection；
Operation principle：
The left side of lens 42 is provided with a rectangular recess 421, and light source 2 is covered on into inside；The light that light source 2 is sent is through light
The exiting surface on the right side of source 2, which projects, to be fully entered in lens 42, is effectively reduced light without light guide plate 4 and diffuser plate 5, is penetrated from top
Go out backlight module.
Embodiment three
As shown in figure 4, present embodiments provide a kind of backlight module of light leakage light guide plate, including it is support 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The present embodiment is that the lens 42 that the left side of light guide plate 4 is set are rectangular preiection, raised with the main distinction of embodiment one
Left side is provided with conical socket corresponding to light source 2, and sets the taper with the direction of conical socket 431 on the right side of conical socket 431
Cavity 432；
Operation principle：
The left side of lens 42 is provided with conical socket 431 corresponding with light source 2, and light source 2 is covered on into inside；Light source 2 is sent out
Exiting surface of the light gone out through the right side of light source 2, which projects, to be fully entered in lens 42, into the light of lens 42, in conical cavity 432
Left surface is reflected again, and light is uniformly dispersed, and is reduced light and is spilt from the lateral edges of light guide plate 4.
The invention provides a kind of backlight module of light leakage light guide plate to have the function that frivolous, light leakage, highlighted.This hair
It is bright to be arranged to lens on the left of light guide plate, the light that light source is sent more is entered inside light guide plate, and pass through diffuser plate, from
Uniformly projected above backlight module；By increasing lens method on the left of light guide plate, make the light for the diffusion that light source sends, via
Lens on light guide plate are converged in light guide plate, effectively reduce the gap light leak of light source and light guide plate, reduce luminance loss；Together
When, on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is become thinner.
Above content is only to structure example of the present invention and explanation, affiliated those skilled in the art couple
Described specific embodiment is made various modifications or supplement or substituted using similar mode, without departing from invention
Structure surmounts scope defined in the claims, all should belong to protection scope of the present invention.
Claims (8)
1. a kind of backlight module of light leakage light guide plate, support (2), light source (2), reflecting paper (3), light guide plate (4), diffuser plate
(5), it is characterised in that：
The support is L-type, and support short side (11) is perpendicular to long side, and light source (2) is affixed on the right side of the short side (11) of support, reflecting paper
(3) long side (12) upper surface is positioned over, as in reflecting paper (3), diffuser plate (5) is placed on above light guide plate (4) light guide plate (4)；
Lens (42) are provided with the left of the light guide plate (4), light guide plate (4) bottom is provided with site (3).
A kind of 2. backlight module of light leakage light guide plate according to claim 1, it is characterised in that the light guide plate (4)
The lens (42) that left side is set are raised for half elliptic.
A kind of 3. backlight module of light leakage light guide plate according to claim 1, it is characterised in that the light guide plate (4)
The lens (42) that left side is set are rectangular preiection, and rectangular recess (421) corresponding with light source is provided with the left of rectangular preiection.
A kind of 4. backlight module of light leakage light guide plate according to claim 1, it is characterised in that the light guide plate (4)
The lens (42) that left side is set are rectangular preiection, and raised left side is provided with conical socket (431) corresponding to light source (2), and is boring
Conical cavity (432) with conical socket (431) direction is set on the right side of connected in star (431).
A kind of 5. backlight module of light leakage light guide plate according to claim 1, it is characterised in that the light guide plate (4)
Bottom is provided with site (3), and site (3) structure can be semi-cylindrical hill, circular pit, annular protrusion or bar shaped salient point.
6. the backlight module of a kind of light leakage light guide plate according to claim 1, it is characterised in that the site (3) is high
Spend for 50~200um, and neighbour node is not overlapping.
7. the backlight module of a kind of light leakage light guide plate according to claim 1, it is characterised in that the light source (2) is
Multiple LED are integrated in the LED light bar formed on pcb board.
A kind of 8. backlight module of light leakage light guide plate according to claim 1, it is characterised in that the reflecting paper (3)
0.1~0.2mm of thickness range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215173.5A CN107884869A (en) | 2017-11-28 | 2017-11-28 | A kind of backlight module of light leakage light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215173.5A CN107884869A (en) | 2017-11-28 | 2017-11-28 | A kind of backlight module of light leakage light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107884869A true CN107884869A (en) | 2018-04-06 |
Family
ID=61775733
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215173.5A Pending CN107884869A (en) | 2017-11-28 | 2017-11-28 | A kind of backlight module of light leakage light guide plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544109A (en) * | 2018-04-11 | 2018-09-18 | 合肥泰沃达智能装备有限公司 | A kind of laser processing light guide plate protrusion site method |
| CN108614319A (en) * | 2018-05-09 | 2018-10-02 | 合肥泰沃达智能装备有限公司 | A kind of double glazing light guide plate backlight module |
| CN108799945A (en) * | 2018-07-13 | 2018-11-13 | 安徽芯瑞达科技股份有限公司 | A kind of ultrathin LED backlight module |
| CN108898951A (en) * | 2018-07-27 | 2018-11-27 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109116464A (en) * | 2018-08-31 | 2019-01-01 | 合肥泰沃达智能装备有限公司 | A kind of light guide plate incident side micro-structure backlight module |
| CN109709715A (en) * | 2019-01-30 | 2019-05-03 | 京东方科技集团股份有限公司 | Side entrance back module and preparation method thereof, display device and its control method |
| CN112255838A (en) * | 2020-11-04 | 2021-01-22 | 中国电子科技集团公司第五十五研究所 | Efficient and highly reliable LED side backlight method for liquid crystal display |
| CN114265224A (en) * | 2021-12-21 | 2022-04-01 | 合肥泰沃达智能装备有限公司 | UPC display panel based on LCD |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108544109A (en) * | 2018-04-11 | 2018-09-18 | 合肥泰沃达智能装备有限公司 | A kind of laser processing light guide plate protrusion site method |
| CN108614319A (en) * | 2018-05-09 | 2018-10-02 | 合肥泰沃达智能装备有限公司 | A kind of double glazing light guide plate backlight module |
| CN108799945A (en) * | 2018-07-13 | 2018-11-13 | 安徽芯瑞达科技股份有限公司 | A kind of ultrathin LED backlight module |
| CN108898951A (en) * | 2018-07-27 | 2018-11-27 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN109116464A (en) * | 2018-08-31 | 2019-01-01 | 合肥泰沃达智能装备有限公司 | A kind of light guide plate incident side micro-structure backlight module |
| CN109116464B (en) * | 2018-08-31 | 2020-06-30 | 合肥泰沃达智能装备有限公司 | Backlight module for light incidence side microstructure of light guide plate |
| CN109709715A (en) * | 2019-01-30 | 2019-05-03 | 京东方科技集团股份有限公司 | Side entrance back module and preparation method thereof, display device and its control method |
| CN109709715B (en) * | 2019-01-30 | 2021-12-07 | 京东方科技集团股份有限公司 | Side-in type backlight module, manufacturing method thereof, display device and control method thereof |
| CN112255838A (en) * | 2020-11-04 | 2021-01-22 | 中国电子科技集团公司第五十五研究所 | Efficient and highly reliable LED side backlight method for liquid crystal display |
| CN114265224A (en) * | 2021-12-21 | 2022-04-01 | 合肥泰沃达智能装备有限公司 | UPC display panel based on LCD |
| CN114265224B (en) * | 2021-12-21 | 2023-04-18 | 合肥泰沃达智能装备有限公司 | UPC display panel based on LCD |
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