CN109445013A - Direct-lighting backlight and its lens light guide plate - Google Patents
Direct-lighting backlight and its lens light guide plate Download PDFInfo
- Publication number
- CN109445013A CN109445013A CN201811474305.0A CN201811474305A CN109445013A CN 109445013 A CN109445013 A CN 109445013A CN 201811474305 A CN201811474305 A CN 201811474305A CN 109445013 A CN109445013 A CN 109445013A
- Authority
- CN
- China
- Prior art keywords
- lens
- light guide
- guide plate
- led
- direct
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a kind of direct-lighting backlight and its lens light guide plates, direct-lighting backlight includes the optics paper set gradually, lens light guide plate, reflecting paper and LED substrate, LED substrate is equipped with several LED light, and the optics paper, lens light guide plate, reflecting paper and LED substrate are fixed by upper ledge and lower frame.Wherein lens light guide plate includes light guide base plate, and the lateral surface of the light guide base plate is equipped with the convex lens of several outwardly convexs, and the lateral center of each convex lens is recessed concavees lens.The direct-lighting backlight and its lens light guide plate pass through the Binding change conventional lenses shape of concave and convex lenses technology, the light beam of LED vertical direction is directed between LED and LED, and lens surface is processed to form Non-smooth surface curved surface by surface processing, further guide light goes out light, to reach luminous uniformity and consistency, luminous efficiency is increased substantially, product quality is improved, meets fine product demand.
Description
Technical field
The invention belongs to back light source technique field, particularly relates to a kind of direct-lighting backlight and its lens are guide-lighting
Plate.
Background technique
Currently, vehicle-mounted backlight carries out leaded light to light guide plate using the light of the LED of lateral emitting, then pass through each optics
Material carries out face and shines.But this side-emitting led light utilization efficiency is very low, only only 60% or so, it is difficult to meet
Technical requirements of the people to fine.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of direct-lighting backlight and its lens light guide plates, significantly mention
High-luminous-efficiency.
The present invention is to solve technical solution used by its technical problem: a kind of direct-lighting backlight lens are guide-lighting
Plate, including light guide base plate, the lateral surface of the light guide base plate are equipped with the convex lens of several outwardly convexs, each convex lens it is outer
Center side is recessed concavees lens.
As a further improvement of the present invention, the convex lens removes the surface of the concave at center exceptionally and processes to be formed
Non-smooth surface curved surface.
As a further improvement of the present invention, the Non-smooth surface curved surface passes through one of stamp, printing, sandblasting and laser
Kind mode processes to be formed.
As a further improvement of the present invention, several LED light are by array distribution in the light guide base plate.
The present invention also provides a kind of direct-lighting backlight, including set gradually optics paper, lens light guide plate, reflecting paper and
LED substrate, LED substrate are equipped with several LED light, and the optics paper, lens light guide plate, reflecting paper and LED substrate pass through upper ledge
It is fixed with lower frame, wherein the lens light guide plate is above-mentioned lens light guide plate.
The beneficial effects of the present invention are: the direct-lighting backlight and its lens light guide plate are changed by the combination of concave and convex lenses technology
Become conventional lenses shape, the light beam of LED vertical direction is directed between LED and LED, and is processed by surface by lens
Surface processes to form Non-smooth surface curved surface, and further guide light goes out light, to reach luminous uniformity and consistency, substantially
Degree improves luminous efficiency, improves product quality, meets fine product demand.
Detailed description of the invention
Fig. 1 is direct-lighting backlight structural schematic diagram of the present invention；
Fig. 2 is lens light conducting plate structure schematic diagram of the present invention；
Fig. 3 is the portion A enlarged structure schematic diagram in Fig. 2；
Fig. 4 is the schematic diagram of the section structure of lens light guide plate of the present invention；
Fig. 5 is the portion the B enlarged structure schematic diagram in Fig. 4.
In conjunction with attached drawing, make the following instructions:
1 --- lens light guide plate；11 --- light guide base plate；
12 --- convex lens；13 --- concavees lens；
2 --- optics paper；3 --- reflecting paper；
4 --- LED substrate；41 --- LED light；
5 --- upper ledge；6 --- lower frame.
Specific embodiment
Below in conjunction with attached drawing, elaborate to a preferred embodiment of the invention.But protection scope of the present invention is not
Be limited to following embodiments, i.e., in every case with simple equivalence changes made by scope of the present invention patent and description with repair
Decorations, all still belong within the invention patent covering scope.
It refering to fig. 1-5, is a kind of direct-lighting backlight of the present invention, optics paper 2, lens including setting gradually are led
Tabula rasa 1, reflecting paper 3 and LED substrate 4, LED substrate are equipped with several LED light 41, the optics paper 2, lens light guide plate 1, reflection
Paper 3 and LED substrate 4 are fixed by upper ledge 5 and lower frame 6.
Wherein, lens light guide plate 1 includes light guide base plate 11, and the lateral surface of the light guide base plate is equipped with several outwardly convexs
Convex lens 12, the lateral center of each convex lens is recessed concavees lens 13.
Preferably,.The convex lens removes the surface of the concave at center exceptionally and processes to form Non-smooth surface curved surface；It is described
Non-smooth surface curved surface is processed and to be formed by stamp, printing, sandblasting and the one kind of mode of laser；Several LED light press array distribution
In in the light guide base plate.
The direct-lighting backlight and its lens light guide plate first combine lens light guide plate with concave-convex lens, i.e., are first leading
Several convex lenses are set on photopolymer substrate, the upper side central dip of each convex lens is then formed into concavees lens, such LED base again
The medial surface that the light that LED light on plate issues initially enters convex lens is reflected, and the outer of convex lens planoconvex lens is then passed through
Side is reflected, and due to the recessed formation concavees lens of convex lens central part, the light of corresponding convex lens central part is not
Direct projection can occur, but the concavees lens formed through lateral surface refract to edge, i.e., draw the linear beams at corresponding convex lens center
Lead between LED and LED, to reduce the light beam of LED vertical direction, increase the light beam between LED and LED, finally make LED and
Dark place becomes two between LED, so that the dim spot on the top LED is improved, greatly improves the luminous efficiency of product.
Secondly, the part between lens and lens has been carried out site and added by the direct-lighting backlight and its lens light guide plate
Work removes center concave lens portion by surface treatment in the convex lens of lens light guide plate, processing forms Non-smooth surface curved surface, than
Such as embossing processing, printing processing, the modes such as sandblasting processing and the processing of laser site change convex lens lateral surface shape, are formed more
A bending curved surface can improve convex lens surface tortuous angle, increase the function of light diffusion, to light is exported outward, into one
Step control light goes out light, reaches the consistency of backlight whole surface light, improves luminous efficiency.
It can be seen that the direct-lighting backlight and its lens light guide plate pass through the Binding change conventional lenses of concave and convex lenses technology
The light beam of LED vertical direction is directed between LED and LED by shape, and is processed by surface lens surface processing shape
At Non-smooth surface curved surface, further guide light goes out light, to reach luminous uniformity and consistency, increases substantially luminous
Efficiency improves product quality, meets fine product demand.
Claims (5)
1. a kind of direct-lighting backlight lens light guide plate (1), including light guide base plate (11), it is characterised in that: the leaded light base
The lateral surface of plate is equipped with the convex lens (12) of several outwardly convexs, and the lateral center of each convex lens is recessed concavees lens
(13)。
2. direct-lighting backlight according to claim 1 lens light guide plate, it is characterised in that: during the convex lens removes
The surface of the concave of the heart exceptionally processes to form Non-smooth surface curved surface.
3. direct-lighting backlight according to claim 2 lens light guide plate, it is characterised in that: the Non-smooth surface curved surface is logical
Stamp, printing, sandblasting and the one kind of mode of laser is crossed to process to be formed.
4. direct-lighting backlight according to claim 1 lens light guide plate, it is characterised in that: several LED light press array
It is distributed in the light guide base plate.
5. a kind of direct-lighting backlight, including optics paper (2), lens light guide plate (1), reflecting paper (3) and the LED base set gradually
Plate (4), LED substrate are equipped with several LED light (41), the optics paper (2), lens light guide plate (1), reflecting paper (3) and LED base
Plate (4) is fixed by upper ledge (5) and lower frame (6), it is characterised in that: the lens light guide plate is to appoint in Claims 1-4
Lens light guide plate described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474305.0A CN109445013A (en) | 2018-12-04 | 2018-12-04 | Direct-lighting backlight and its lens light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811474305.0A CN109445013A (en) | 2018-12-04 | 2018-12-04 | Direct-lighting backlight and its lens light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109445013A true CN109445013A (en) | 2019-03-08 |
Family
ID=65555624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811474305.0A Pending CN109445013A (en) | 2018-12-04 | 2018-12-04 | Direct-lighting backlight and its lens light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109445013A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI767549B (en) * | 2021-02-03 | 2022-06-11 | 云光科技股份有限公司 | Backlight device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090011501U (en) * | 2009-08-25 | 2009-11-11 | (주)뉴옵틱스 | LED Back-light Unit |
| CN102696123A (en) * | 2010-01-07 | 2012-09-26 | 首尔半导体株式会社 | Aspherical LED lens and light emitting device including the same |
| JP2013157255A (en) * | 2012-01-31 | 2013-08-15 | Sharp Corp | Lighting system and display device |
| KR20150039500A (en) * | 2013-10-02 | 2015-04-10 | 에이테크솔루션(주) | A hybrid light guide panel with incorcorated led lenses |
| CN209690554U (en) * | 2018-12-04 | 2019-11-26 | 伟时电子股份有限公司 | Direct-lighting backlight and its lens light guide plate |
-
2018
- 2018-12-04 CN CN201811474305.0A patent/CN109445013A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090011501U (en) * | 2009-08-25 | 2009-11-11 | (주)뉴옵틱스 | LED Back-light Unit |
| CN102696123A (en) * | 2010-01-07 | 2012-09-26 | 首尔半导体株式会社 | Aspherical LED lens and light emitting device including the same |
| JP2013157255A (en) * | 2012-01-31 | 2013-08-15 | Sharp Corp | Lighting system and display device |
| KR20150039500A (en) * | 2013-10-02 | 2015-04-10 | 에이테크솔루션(주) | A hybrid light guide panel with incorcorated led lenses |
| CN209690554U (en) * | 2018-12-04 | 2019-11-26 | 伟时电子股份有限公司 | Direct-lighting backlight and its lens light guide plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI767549B (en) * | 2021-02-03 | 2022-06-11 | 云光科技股份有限公司 | Backlight device |
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