CN207502764U - 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
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- CN207502764U CN207502764U CN201721616928.8U CN201721616928U CN207502764U CN 207502764 U CN207502764 U CN 207502764U CN 201721616928 U CN201721616928 U CN 201721616928U CN 207502764 U CN207502764 U CN 207502764U
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- guide plate
- light guide
- light
- backlight module
- lens
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Abstract
The utility model discloses a kind of backlight module of light leakage light guide plate, including：Stent, light source, reflecting paper, light guide plate, diffuser plate；The stent is L-type, and perpendicular to long side, light source is affixed on the right side of the short side of stent stent 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 on the left of the light guide plate, light guide plate bottom is provided with site.The utility model has the function of frivolous, light leakage, highlighted.By increasing lens method on the left of light guide plate, the light of diffusion for sending out light source is converged to via the lens on light guide plate in light guide plate the utility model, effectively reduces the gap light leakage of light source and light guide plate, reduces luminance loss；Meanwhile on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is made to become thinner.
Description
Technical field
The utility model is related to a kind of backlight modules of light leakage light guide plate, especially a kind of to have frivolous, light leakage, height
The backlight module of bright light leakage light guide plate.
Background technology
Since 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 key whether display device slimming
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 display panel；Side entrance back module is located at screen
Curtain edge makes the light source of screen side guide liquid crystal display panel into, and project 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 usually set
There is molding site to realize the reflection of light, make light is more uniform to be irradiated on optical diaphragm.
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 equipped with the lattice point structures such as ditch, protrusion or printed article.Using the light that the site is propagated in light guide plate to liquid crystal display panel
It projects side.By site and in the changed light of direction of travel, a part of light is penetrated from bottom surface of light guide plate to outside light guide plate
Go out.Reflecting plate is formed in the bottom surface side of light guide plate, the light projected from bottom surface is by baffle reflection to light guide plate side, and court
To liquid crystal display panel side.
Fig. 1 is the structure diagram of prior art backlight module, and backlight module mainly includes in the prior art：Stent 1, light
Source 2, reflective sheeting 3, light guide plate 4, diffuser plate 5, wherein stent 1 are L-type structure, and light source 2 is pasted onto the right side of the short side 11 of stent 1
Wall, light source 2 are made of multiple LED being pasted onto on pcb board；Reflecting paper 3 is placed in 12 upper surface of long side of stent 1, and reflecting paper 3 will
The light reflection in reflecting paper 3 is scattered to return on light guide plate 4；Light guide plate 4 is placed on above reflecting paper and 2 right side of light source, light guide plate 4
Lower section is provided with the site 41 convexed to form of matrix arrangement, and line source is converted to area source by light guide plate 4；Diffuser plate 5 is placed
In light guide plate upper surface, the area source that 4 top of light guide plate is emitted further is uniformly dispersed by diffuser plate 5.
When the light that light source 2 is sent out, 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 4 left side of light guide plate again, and reflect light guide plate 4, without diffuser plate 5 then from backlight module
It projects top.Backlight module edge brightness light leakage is caused, energy of light source loses, and reduces the average brightness of backlight module.
Utility model content
The purpose of this utility model is to provide a kind of backlights with frivolous, light leakage, highlighted light leakage light guide plate
Module improves the illuminance of light guide plate.
To achieve these goals, the utility model provides a kind of backlight module of light leakage light guide plate, including：Branch
Frame, light source, reflecting paper, light guide plate, diffuser plate；
The stent is L-type, and perpendicular to long side, light source is affixed on the right side of stent short side the short side of stent, 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 on the left of the light guide plate；
Optionally, the lens set on the left of the light guide plate are half elliptic protrusion；
Optionally, the lens set on the left of the light guide plate are rectangular preiection, and are provided on the left of rectangular preiection and light
The corresponding rectangular recess in source；
Optionally, the lens set on the left of the light guide plate are rectangular preiection, and protrusion left side is provided with the corresponding cone of light source
Connected in star, and setting and the conical cavity in conical socket direction on the right side of conical socket；
Optionally, the light guide plate bottom is provided with site, and lattice point structure can be semi-cylindrical hill, circular pit, ring
Shape protrusion or bar shaped salient point；
Optionally, the site height is 50~200um, and neighbour node is not overlapped；
Optionally, the light source is integrated in the LED light bar formed on pcb board for multiple LED；
Optionally, 0.1~0.2mm of thickness range of the reflecting paper.
The utility model, which provides a kind of backlight module of light leakage light guide plate, has the function of frivolous, light leakage, highlighted.
The utility model will be arranged to lens on the left of light guide plate, and the light that light source is sent out is made more to enter inside light guide plate, and pass through
Diffuser plate uniformly projects above backlight module；By increasing lens method on the left of light guide plate, make the diffusion that light source sends out
Light is converged to via the lens on light guide plate in light guide plate, effectively reduces the gap light leakage of light source and light guide plate, reduces brightness
Loss；Meanwhile on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is made to become thinner.
Description of the drawings
In order to facilitate the understanding of those skilled in the art, the utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structure diagram of prior art backlight module；
Fig. 2 is one light leakage back light module unit structure schematic diagram of the utility model embodiment；
Fig. 3 is two light leakage back light module unit structure schematic diagram of the utility model embodiment；
Fig. 4 is three light leakage back light module unit structure schematic diagram of the utility model embodiment.
Specific embodiment
Above-mentioned purpose, feature and advantage to enable the utility model are more obvious understandable, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be implemented using other different from other manner described here, therefore the utility model is not by following public tool
The limitation of body embodiment.
Just as described in the background section, backlight module includes stent, light source, reflecting paper, light guide plate, expansion in the prior art
It falls apart, the stent is L-type, and perpendicular to long side, light source is affixed on the right side of stent short side stent 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 on 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 stent 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The stent 1 includes stent short side 11, stent long side 12, and it is short that 12 left side top of stent long side is vertically arranged with stent
Side 11；11 left side of stent short side is equipped with light source 2；12 upper surface of stent long side is equipped with reflecting paper 3, reflecting paper 3
Top is placed with light guide plate 4, and 4 lower surface of light guide plate is provided with site 41, diffuser plate 5 is equipped on antifouling 4 upper surface of light guide plate；
4 left side of light guide plate is provided with the lens 42 of half elliptic protrusion, and lens 42 are contacted with light source 2, and 4 bottom of light guide plate is provided with
Site 41；
Operation principle：
Light-emitting surface of the light that light source 2 is sent out through 2 right side of light source projects, and enters light guide plate 4 by 42 left side incidence surface of lens
It is interior；Light is behind the upper surface of light guide plate 4 and right side reflection, and light is after 41 lower section optical surface of site, a part of light
It is reflected back in light guide plate 4, a part of light refracts through 41 lower section optical surface of site, is irradiated to reflecting paper 3, antifouling light guide plate 4
Between gap in, into the light in gap in the dirty light guide plate 4 of reflective surface reflection of reflecting paper upper surface；In light guide plate 4
Light by internal refraction and reflection, finally projected from the light-emitting surface of 4 upper surface of light guide plate, and process 5 following table of diffuser plate
The incidence surface in face enters in diffuser plate 5, then is uniformly projected via 5 upper surface light-emitting surface of diffuser plate perpendicular to diffuser plate 5；
The lens 42 reduce the gap that 4 left side of light guide plate is formed with 2 right side of light source, and gap shortening light in gap, which enters, leads
The light path of tabula rasa 2 reduces the quantity that light is projected from 4 top edge of light guide plate.
Embodiment two
As shown in figure 3, present embodiments provide a kind of backlight module of light leakage light guide plate, including stent 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The present embodiment is that the lens 42 that 4 left side of light guide plate is set are rectangular preiection with one main distinction of embodiment, and
It is provided with and 2 corresponding rectangular recess 421 of light source on the left of rectangular preiection；
Operation principle：
There are one rectangular recess 421 for the 42 left side setting of lens, and light source 2 is covered on inside；The light that light source 2 is sent out is through light
The light-emitting surface injection on 2 right side of source is 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 stent 1, light source 2, anti-
Penetrate paper 3, light guide plate 4, diffuser plate 5；
The present embodiment is that the lens 42 that 4 left side of light guide plate is set are rectangular preiection, raised with one main distinction of embodiment
Left side is provided with 2 corresponding conical socket of light source, and in 431 right side setting of conical socket and the taper in 431 direction of conical socket
Cavity 432；
Operation principle：
42 left side of the lens be provided with 2 corresponding conical socket 431 of light source, light source 2 is covered on into inside；Light source 2 is sent out
Light-emitting surface injection of the light gone out through 2 right side of light source is fully entered in lens 42, into the light of lens 42, in conical cavity 432
Left side reflects again, and light is uniformly dispersed, and reduces light and is leaked out from 4 lateral edges of light guide plate.
The utility model, which provides a kind of backlight module of light leakage light guide plate, has the function of frivolous, light leakage, highlighted.
The utility model will be arranged to lens on the left of light guide plate, and the light that light source is sent out is made more to enter inside light guide plate, and pass through
Diffuser plate uniformly projects above backlight module；By increasing lens method on the left of light guide plate, make the diffusion that light source sends out
Light is converged to via the lens on light guide plate in light guide plate, effectively reduces the gap light leakage of light source and light guide plate, reduces brightness
Loss；Meanwhile on the basis of light guide plate lens are not changed, light guide plate integral thickness is thinned, backlight module is made to become thinner.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member does various modifications or additions to described specific embodiment or substitutes in a similar way, without departing from reality
With novel structure or surmount range defined in the claims, all should belong to the protection range of the utility model.
Claims (8)
1. a kind of backlight module of light leakage light guide plate, stent (1), light source (2), reflecting paper (3), light guide plate (4), diffuser plate
(5), it is characterised in that：
The stent is L-type, and stent short side (11) is perpendicular to long side, and light source (2) is affixed on the right side of the short side (11) of stent, 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 on the left of the light guide plate (4), light guide plate (4) bottom is provided with site (41).
A kind of 2. backlight module of light leakage light guide plate according to claim 1, which is characterized in that the light guide plate (4)
The lens (42) of left side setting are half elliptic protrusion.
A kind of 3. backlight module of light leakage light guide plate according to claim 1, which is characterized in that the light guide plate (4)
The lens (42) of left side setting are rectangular preiection, and rectangular recess (421) corresponding with light source is provided on the left of rectangular preiection.
A kind of 4. backlight module of light leakage light guide plate according to claim 1, which is characterized in that the light guide plate (4)
The lens (42) of left side setting are rectangular preiection, and protrusion left side is provided with the corresponding conical socket (431) of light source (2), and boring
Setting and the conical cavity (432) in conical socket (431) direction 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, which is characterized in that the light guide plate (4)
Bottom is provided with site (41), and site (41) 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, which is characterized in that the site (41) is high
It spends for 50~200um, and neighbour node is not overlapped.
7. the backlight module of a kind of light leakage light guide plate according to claim 1, which is characterized 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, which is characterized in that the reflecting paper (3)
0.1~0.2mm of thickness range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721616928.8U CN207502764U (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 |
|---|---|---|---|
| CN201721616928.8U CN207502764U (en) | 2017-11-28 | 2017-11-28 | A kind of backlight module of light leakage light guide plate |
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| Publication Number | Publication Date |
|---|---|
| CN207502764U true CN207502764U (en) | 2018-06-15 |
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ID=62507259
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| CN201721616928.8U Active CN207502764U (en) | 2017-11-28 | 2017-11-28 | A kind of backlight module of light leakage light guide plate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884869A (en) * | 2017-11-28 | 2018-04-06 | 合肥泰沃达智能装备有限公司 | A kind of backlight module of light leakage light guide plate |
| CN109283721A (en) * | 2018-08-31 | 2019-01-29 | 合肥泰沃达智能装备有限公司 | A kind of In-cell touch panel and preparation method thereof |
| CN118112843A (en) * | 2024-04-26 | 2024-05-31 | Tcl华星光电技术有限公司 | Backlight module and display device |
-
2017
- 2017-11-28 CN CN201721616928.8U patent/CN207502764U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884869A (en) * | 2017-11-28 | 2018-04-06 | 合肥泰沃达智能装备有限公司 | A kind of backlight module of light leakage light guide plate |
| CN109283721A (en) * | 2018-08-31 | 2019-01-29 | 合肥泰沃达智能装备有限公司 | A kind of In-cell touch panel and preparation method thereof |
| CN118112843A (en) * | 2024-04-26 | 2024-05-31 | Tcl华星光电技术有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Light leak preventive back light unit of light guide plate Effective date of registration: 20200323 Granted publication date: 20180615 Pledgee: Hefei Qiying venture capital partnership (L.P.) Pledgor: HEFEI TAIWO INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2020340000008 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230321 Granted publication date: 20180615 Pledgee: Hefei Qiying venture capital partnership (L.P.) Pledgor: HEFEI TAIWO INTELLIGENT EQUIPMENT Co.,Ltd. Registration number: Y2020340000008 |