CN206362967U - A kind of Novel backlight light guide plate - Google Patents
A kind of Novel backlight light guide plate Download PDFInfo
- Publication number
- CN206362967U CN206362967U CN201621485614.4U CN201621485614U CN206362967U CN 206362967 U CN206362967 U CN 206362967U CN 201621485614 U CN201621485614 U CN 201621485614U CN 206362967 U CN206362967 U CN 206362967U
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- China
- Prior art keywords
- optics
- pmma substrates
- light
- guide plate
- light guide
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Abstract
The utility model is related to a kind of Novel backlight light guide plate, including rectangular optical PMMA substrates, reflector plate and optics reflecting film on the non-incident plain edge of optics PMMA substrates, the upper surface protrusion of optics PMMA substrates is provided with the guide-lighting micro-structural of some semi-cylindricals be arrangeding in parallel, the hemispherical scattering netted dot of some rows is arranged with the lower surface of optics PMMA substrates, all scattering netted dots positioned at same a line constitute a microlens array, semi-cylindrical leaded light micro-structural and hemispherical scattering netted dot are that molding is integrally formed and is arranged on optics PMMA substrates, reflector plate and optics reflecting film are by UV-light solidified pressure-sensitive together with optics PMMA substrate stickings, the incident plain edge of optics PMMA substrates offers LED/light source mounting groove, the side dimension of the width and length of all reflector plates and optics PMMA substrates is consistent, all microlens arrays are arranged with the guide-lighting micro-structural orthogonal relationship of all semi-cylindricals.This light guide plate can realize the narrow frame and lightening design of LCDs.
Description
Technical field
The utility model is related to a kind of backlight part, concretely relates to a kind of Novel backlight light guide plate, especially
It is related to a kind of highly integrated light guide plate.
Background technology
Existing backlight is substantially by LED/light source, light guide plate, reflecting plate, diffuser plate, prism add lustre plate and fixed support etc.
Composition, wherein light guide plate is a considerable building block in backlight, and light guide plate is mainly used in send out from LED/light source
The line source gone out it is uniform and complete reflex to diffuser plate and with upper-part to form area source, so as to light whole backlight,
The performance quality of backlight depends primarily on light guide plate in most cases as can be seen here.Existing light guide plate utilizes optical grade
Acrylic/PC plate material, then with having high reflectivity and the not hitech materials of extinction, at the acryl plates bottom of optical grade
Face stamps light guiding points with UV screen printing technologies.The light issued from lamp is drawn using optical grade acryl plates sub- in optical grade
The stop of gram force plate surface, when light is mapped to each light guiding points, reflected light can be toward all angles diffusion, then destruction reflection
Condition is projected by light guide plate front.By various densitys, light guiding points not of uniform size, light guide plate uniformly light-emitting can be made.Light guide plate
What the distribution of bottom surface light scattering dot matrix decide light guide plate goes out optical property, its manufacture craft from early stage silk-screen printing technique to
Integrated injection molding process changeover；Microlens array and microprism array technology turn into the mainstream technology of high-grade light guide plate design,
Mould machining accuracy has reached micron order；Another development trend of light guide plate is Integration Design, with reach it is few with and without
Blooming piece, reduce material cost, realize the lightening purpose of back light system.
Utility model content
The purpose of this utility model, which is to provide on a kind of Novel backlight light guide plate, the light guide plate, is integrated with light shielding part,
The narrow frame design of backlight is advantageously implemented, in addition, being integrated with high light reflectivity film in the bottom of the light guide plate, can effectively be reduced
The thickness of backlight, is easy to implement the lightening design of LCDs.
To achieve these goals, the technical solution adopted in the utility model is, a kind of Novel backlight light guide plate, including
Rectangular optical PMMA substrates, the reflector plate being arranged on the non-incident plain edge of optics PMMA substrates and it is arranged on optics PMMA substrates
The optics reflecting film of bottom, the upper surface protrusion of the optics PMMA substrates is led provided with some semi-cylindricals be arrangeding in parallel
The hemispherical scattering netted dot of some rows is arranged with light micro-structural, the lower surface of the optics PMMA substrates, positioned at the institute of same a line
There is scattering netted dot to constitute a microlens array, the guide-lighting micro-structural of the semi-cylindrical and hemispherical scattering netted dot are that molding is penetrated
Go out the upper and lower surface that shaping is arranged on optics PMMA substrates, the reflector plate and optics reflecting film are solidified by ultraviolet light
Pressure sensitive adhesive is together with optics PMMA substrate stickings, and the incident plain edge of the optics PMMA substrates offers LED/light source mounting groove,
The width and length of all reflector plates and the side dimension of optics PMMA substrates（Including width and length）It is consistent, Suo Youwei
Lens array is arranged with the guide-lighting micro-structural orthogonal relationship of all semi-cylindricals.
As a kind of improvement of the present utility model, the thickness of the optics PMMA substrates is 0.5-5mm, and the optics is anti-
Penetrate the PET reflection film that film uses thickness for 0.1-0.35mm.
As it is of the present utility model it is a kind of improve, positioned at all hemispherical scattering netted dots of same microlens array
Radius is in ascending structure distribution according to the distance of the incident plain edge of distance, positioned at all hemisphere of same microlens array
The arrangement density of shape scattering netted dot is in ascending distribution according to the distance of the incident plain edge of distance, that is, is located at into the scattering of light proximal end
The small arrangement density of radius of site is small, and the big arrangement density of radius for entering light far-end scattering netted dot is big.
It is to divide at equal intervals positioned at all scattering netted dots of same microlens array as a kind of improvement of the present utility model
Cloth, the interval of two neighboring microlens array becomes increasingly nearer as the distance with incident plain edge is more and more remote, and position
It is consistent in the size of all scattering netted dots of same microlens array.
Improved as one kind of the present utility model, it is closely coupled between the guide-lighting micro-structural of two adjacent semi-cylindricals.
As a kind of improvement of the present utility model, the reflecting surface of the optics reflecting film is in rough shape, is led to
Cross reflector design into rough shape so that after the reflected face reflection of light of directive optics reflecting film, in point
Bulk directive optics PMMA substrates, it is ensured that be irradiated to the uniformity of the light of optics PMMA substrates, and can effectively prevent light leak.
Relative to prior art, be integrated with proposed light guide plate of the present utility model non-incident plain edge light shielding part and
High light reflectivity film, overall construction design is ingenious rationally, and light good airproof performance, light utilization is high, can be easily achieved large scale bloom
The backlight of the bright uniformity, can effectively reduce the thickness and border width of backlight, so that beneficial to realizing the light of LCDs
Thinning and narrow frame design.Due to being provided with the guide-lighting micro- knot of mutually orthogonal semi-cylindrical on the upper and lower surface of optics PMMA substrates
Structure and microlens array so that the light guide plate has higher injection light luminance uniformity, while can effectively improve to LED light
The efficiency of light energy utilization that source is sent, so that the side light-in backlight of Ultrathin high-brightness degree can be realized, and is set using the light guide plate
When counting side light-in backlight less demanding to brightness, it can lack and add lustre to or without traditional multilayer diffuser plate and prism
Plate, and then can also realize while the cost of side-edge type backlight is reduced the lightening of this kind of backlight.Further, since
LED/light source mounting groove is offered in the incident plain edge of optics PMMA substrates, consequently facilitating LED/light source accurately is fixed on into leaded light
On the incident plain edge of plate, while being also beneficial to the fixation to LED/light source, prevent its long-time from using and being shifted over and shadow
Ring the performance of backlight.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model preferred embodiment.
Fig. 2 is the cross section structure schematic diagram of the utility model preferred embodiment.
Fig. 3 is the scattering netted dot distribution schematic diagram of the utility model preferred embodiment.
In figure：1- optics PMMA substrates, 2- reflector plates, 3- optics reflecting films, 4-LED light source mounting grooves, 5- semicolumns
Shape leaded light micro-structural, the hemispherical scattering netted dots of 6-.
Embodiment
In order to deepen, to understanding and cognition of the present utility model, the utility model to be further described below in conjunction with the accompanying drawings
And introduction.
Such as Fig. 1-Fig. 3, a kind of Novel backlight light guide plate, including rectangular optical PMMA substrates 1, it is arranged on optics PMMA
Reflector plate 2 and the optics reflecting film 3 for being arranged on the bottom of optics PMMA substrates 1 on the non-incident plain edge of substrate 1, wherein, light
The thickness for learning PMMA substrates 1 is 0.5-5mm, and refractive index is 1.49, and critical angle is 42.2 °, and the reflector plate 2 and optical reflection are thin
Film 3 is pasted together by UV-light solidified pressure-sensitive with optics PMMA substrates 1, and the reflector plate 2 is used for optics PMMA
Substrate 1 takes the light spilt on incident plain edge and is reflected back in optics PMMA substrates 1, so as to while shading is played, improve light source
Send the utilization rate of light.The optics reflecting film 3 is preferred to use the PET reflection film that thickness is 0.1-0.35mm, filling in it
There is inorganic particulate so that reflecting surface is in rough shape so that the reflected face reflection of light of directive optics reflecting film 3
Afterwards, in dispersed directive optics PMMA substrates 1, it is ensured that be irradiated to the uniformity of the light of optics PMMA substrates 1, and can be effective
Prevent light leak.And the light reflectivity of this kind of PET reflection film is up to more than 95%, light guide plate 30%-60% brightness can be lifted, and
The 30%-50% of LED/light source power consumption can be reduced.
In addition, the upper surface protrusion of the optics PMMA substrates 1 is micro- provided with some semi-cylindrical leaded lights be arrangeding in parallel
It is closely coupled between structure 5, and the guide-lighting micro-structural 5 of adjacent two semi-cylindricals, it is preferred that all semi-cylindrical leaded lights are micro-
The radius span of structure 5 is 0.015-0.05mm, calculates and obtains using micro-optics and binary optical iterative algorithm etc..This
Sample may be such that the bright uniformity projected from the inside of optics PMMA substrates 1 is good and light of injection can near vertical directive be arranged on
In liquid crystal display above backlight, while can also avoid setting multilayer diffuser plate and prism to add lustre in the top of light guide plate
Plate, so as to reduce the thickness of backlight and then be easy to implement the lightening design of backlight.
The hemispherical scattering netted dot 6 of some rows is arranged with the lower surface of the optics PMMA substrates 1, positioned at the institute of same a line
There is scattering netted dot 6 to constitute a microlens array, be to divide at equal intervals positioned at all scattering netted dots 6 of same microlens array
Cloth, the interval of two neighboring microlens array becomes increasingly nearer as the distance with incident plain edge is more and more remote, and position
It is consistent in the size of all scattering netted dots 6 of same microlens array.From incident plain edge optics is coupled into due to all
The conduction light of PMMA substrates 1 is during propagating forward, and luminous flux reduces with the increase of distance, therefore, in optics PMMA
The bottom of substrate 1 sets scattering netted dot 6 constantly can be scattered to the conduction light for entering optics PMMA substrates 1, and light can be by
Project the upper surface of optics PMMA substrates 1.In addition, in order that must enter the conduction light of optics PMMA substrates 1 can propagate as far as possible
Remote distance, by positioned at the radius of all hemispherical scattering netted dots 6 of same microlens array according to the incident plain edge of distance
Distance is in ascending structure distribution, positioned at the arrangement density of all hemispherical scattering netted dots 6 of same microlens array
Distance according to the incident plain edge of distance is in ascending distribution, that is, be located at the radius into light proximal end scattering netted dot 6 it is small arrange it is close
Degree is small, and the big arrangement density of the radius for entering light far-end scattering netted dot 6 is big, namely straight in the scattering netted dot 6 at LED/light source
Footpath is small, and big away from the diameter of scattering netted dot 6 at LED/light source.In each region for so ensuring that optics PMMA substrates 1
The area of scattering netted dot 6 is directly proportional to from the luminous flux of upper surface outgoing, and the area ratio that ratio is equal to this region is above incided
Luminous flux on this region.
The guide-lighting micro-structural 5 of the semi-cylindrical and hemispherical scattering netted dot 6 are that molding ejection formation is arranged on optics
The upper and lower surface of PMMA substrates 1, formed precision is high and service life is long.The incident plain edge of the optics PMMA substrates 1 is offered
LED/light source mounting groove 4, consequently facilitating accurately LED/light source is fixed on incident plain edge, while being also beneficial to LED/light source
Fixation, prevent its long-time use and be shifted over.
In addition, the side dimension of the width and length of all reflector plates 2 and optics PMMA substrates 1（Including width and length）
It is consistent, so as to may be such that reflector plate 2 is perfectly fitted on the non-incident plain edge of optics PMMA substrates 1, prevents light leak simultaneously
Improve the efficiency of light energy utilization.All microlens arrays are arranged with the guide-lighting orthogonal relationship of micro-structural 5 of all semi-cylindricals, can be overall
Improve the guiding property of light guide plate.
In addition, the reflecting surface of the optics reflecting film 3 is in rough shape, by by reflector design into bumps
Uneven shape so that after the reflected face reflection of light of directive optics reflecting film 3, in dispersed directive optics PMMA substrates
1, it is ensured that be irradiated to the uniformity of the light of optics PMMA substrates 1, and it is anti-to be prevented effectively from the light at the edge of optics PMMA substrates 1
Penetrate, absorb and the phenomenon such as light leak, effectively increase light utilization, add light from the upper surface of optics PMMA substrates 1
Outgoing uniformity.
It is all from incident plain edge be coupled into the conduction light of light guide plate the upper and lower surface of light guide plate and side set it is anti-
Penetrate piece 2 to be totally reflected back and forth, do not transmit light guide plate from upper and lower surface or side, to the last encounter scattering netted dot 6 and become scattered
Penetrate light or reach untill terminal surface transmits away.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also
Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moistened
Decorations are also considered as protection domain of the present utility model.
Claims (6)
1. a kind of Novel backlight light guide plate, it is characterised in that：Including rectangular optical PMMA substrates, it is arranged on optics PMMA substrates
Non- incident plain edge on reflector plate and be arranged on the optics reflecting films of optics PMMA base plate bottoms, the optics PMMA substrates
Upper surface protrusion provided with the guide-lighting micro-structurals of some semi-cylindricals that be arranged in parallel, in the lower surface of the optics PMMA substrates
The hemispherical scattering netted dot of some rows is arranged with, a microlens array, described half are constituted positioned at all scattering netted dots of same a line
Cylindric guide-lighting micro-structural and hemispherical scattering netted dot are to be molded the upper and lower table that ejection formation is arranged on optics PMMA substrates
Face, the reflector plate and optics reflecting film by UV-light solidified pressure-sensitive together with optics PMMA substrate stickings, institute
The incident plain edge for stating optics PMMA substrates offers LED/light source mounting groove, width and length and the optics PMMA of all reflector plates
The side width and length of substrate are consistent, all microlens arrays and the orthogonal thereto pass of the guide-lighting micro-structural of all semi-cylindricals
System's arrangement.
2. a kind of Novel backlight light guide plate as claimed in claim 1, it is characterised in that positioned at same microlens array
The radius of all hemispherical scattering netted dots is in ascending structure distribution according to the distance of the incident plain edge of distance, positioned at same
The arrangement density of all hemispherical scattering netted dots of microlens array is in ascending distribution according to the distance of the incident plain edge of distance.
3. a kind of Novel backlight light guide plate as claimed in claim 2, it is characterised in that positioned at same microlens array
All scattering netted dots is are spacedly distributed, and the interval of two neighboring microlens array is with more and more remote with the distance of incident plain edge
And become increasingly nearer, and the size of all scattering netted dots positioned at same microlens array is consistent.
4. a kind of Novel backlight light guide plate as claimed in claim 2 or claim 3, it is characterised in that two adjacent semi-cylindricals
It is closely coupled between guide-lighting micro-structural.
5. a kind of Novel backlight light guide plate as claimed in claim 4, it is characterised in that the thickness of the optics PMMA substrates
For 0.5-5mm, the optics reflecting film uses thickness for 0.1-0.35mm PET reflection film.
6. a kind of Novel backlight light guide plate as claimed in claim 5, it is characterised in that the reflection of the optics reflecting film
Face is in rough shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621485614.4U CN206362967U (en) | 2016-12-31 | 2016-12-31 | A kind of Novel backlight light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621485614.4U CN206362967U (en) | 2016-12-31 | 2016-12-31 | A kind of Novel backlight light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362967U true CN206362967U (en) | 2017-07-28 |
Family
ID=59377685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621485614.4U Expired - Fee Related CN206362967U (en) | 2016-12-31 | 2016-12-31 | A kind of Novel backlight light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206362967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462465A (en) * | 2020-11-24 | 2021-03-09 | 常熟理工学院 | Light guide plate with embedded light source and application thereof |
| CN112669788A (en) * | 2020-12-07 | 2021-04-16 | 维沃移动通信有限公司 | Electronic device |
-
2016
- 2016-12-31 CN CN201621485614.4U patent/CN206362967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112462465A (en) * | 2020-11-24 | 2021-03-09 | 常熟理工学院 | Light guide plate with embedded light source and application thereof |
| CN112669788A (en) * | 2020-12-07 | 2021-04-16 | 维沃移动通信有限公司 | Electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170728 Termination date: 20181231 |