CN109425924A - The double-deck radium-shine light guide plate - Google Patents
The double-deck radium-shine light guide plate Download PDFInfo
- Publication number
- CN109425924A CN109425924A CN201710727921.1A CN201710727921A CN109425924A CN 109425924 A CN109425924 A CN 109425924A CN 201710727921 A CN201710727921 A CN 201710727921A CN 109425924 A CN109425924 A CN 109425924A
- Authority
- CN
- China
- Prior art keywords
- light guide
- guide plate
- radium
- shine
- band
- 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.)
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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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The double-deck radium-shine light guide plate, it is related to LED display technical field；It is formed by upper light guide plate and lower light guide plate combination；The upper light guide plate and lower light guide plate are made of multiple band-like site splicings respectively, and each band-like site is coupled with the adjustable LED light source of independent brightness respectively.The radium-shine light guide plate of bilayer of the present invention, it replaces directly descending array unit using the site zoning unit of the double-deck radium-shine light guide plate, it is preferable to realize the control of dynamic local light efficiency, accurately local controlled light effect can effectively be reached, to realize dynamic backlight function, function and can be with effectively save electric energy is realized using lower cost.
Description
Technical field
The present invention relates to LED display technical fields, and in particular to the double-deck radium-shine light guide plate.
Background technique
Display industry uses passive type liquid crystal display substantially for many years, and liquid crystal display itself will not shine needs by setting behind
Light source shows image.Backlight technology is the important factor in order of liquid crystal display quality.And in entire backlight module
Middle price occupies large percentage, is important optical component.Backlight technology, from traditional CCFL light source, is arrived by the development of many years
In the mostly generation that DLED directly-down light source arrives currently a popular ELED light source again, alternates but still be unable to do without light guide plate, and light guide plate is display
Core component in device.
But the backlight of current liquid crystal TV set is Static planar light source, and backlight is in light state after television startup,
Local luminance control can not be carried out, when can be not bright enough in white strong light picture display, when in the display of black picture
It is not black enough, so the high contrast that cannot achieve picture embodies, it is unable to satisfy the true reduction of high definition film source.With the product of user
Taste is promoted and the liquid crystal TV set image quality of mainstream shows and requires higher and higher, and the TV of dynamic backlight control system occurs,
Program Sony has been carried out in DLED (straight-down negative LED), carries out backlight array and individually control using thousands of lamp beads
Can effective multi-area control backlight, but fail to be received by market always because with high costs and power consumption is larger.
Summary of the invention
In view of the defects and deficiencies of the prior art, the present invention intends to provide one kind effectively to reach accurately
Local controlled light effect, the radium-shine light guide plate of bilayer for realizing dynamic backlight function.
To achieve the above object, the technical solution adopted by the present invention is that: it is formed by upper light guide plate and lower light guide plate combination；
The upper light guide plate and lower light guide plate are made of multiple band-like sites splicings respectively, each band-like site respectively with it is independent bright
Spend adjustable LED light source coupling.
Preferably, the upper light guide plate and lower light guide plate are coupled by one group of unilateral LED light source respectively, double layer light-guiding
Plate is the bright dark subregion for using 2 groups of LED light sources independently to couple control light guide plate.
Preferably, the upper light guide plate and lower light guide plate are coupled by two groups of LED light sources of bilateral respectively, double layer light-guiding
Plate is the bright dark subregion for using 4 groups of LED light sources independently to couple control light guide plate.
Preferably, the band-like site brightness subregion juxtaposition of the upper light guide plate and lower light guide plate completes bright invisible subsidy
It repays, to reach ideal optical homogeneity.
Preferably, the X of the upper light guide plate and lower light guide plate mesh point, the band-like bright of light guide plate is realized in the variation of Y spacing
Dark distribution.
Preferably, by carrying out energy value for the radium-shine energy of Laser machine stand is corresponding with the bright dark subregion of band-like site
Adjustment, pass through the band-like bright dark distribution of final practical two light guide plates of network point size, and complete two light guide plates up and down
Combined integrated light efficiency is uniformly distributed.
The operation principle of the present invention is that: by control LED light source subregion electric current combination light guide plate on gradual change site come
Realize the control of light guide plate part luminance, the design of the double-deck radium-shine light guide plate and multizone LED and geometric increase control area,
Backlight adjustable elements can be made to greatly increase, cooperation LCD driving mainboard carries out linkage control, can realize that display image increases
Contrast, and the bright shadow section in part is carried out according to image content, can show more colors and reduces energy consumption.
After adopting the above structure, the present invention is the beneficial effects are as follows: the radium-shine light guide plate of bilayer of the present invention, uses
The site zoning unit of the double-deck radium-shine light guide plate replaces directly descend array unit, and preferable realization dynamic local light efficiency controls,
Accurately local controlled light effect can effectively be reached, to realize dynamic backlight function, realize function simultaneously using lower cost
It can be with effectively save electric energy.
Detailed description of the invention
Fig. 1 is half-tone of the present invention；
Fig. 2 is the radium-shine curve graph of present embodiment unilateral side LGP1；
Fig. 3 is the radium-shine curve graph of present embodiment unilateral side LGP2；
Fig. 4 is the radium-shine curve graph of present embodiment bilateral LGP1；
Fig. 5 is the radium-shine curve graph of present embodiment bilateral LGP2；
Fig. 6 is light guide plate and lower light guide plate combination light efficiency transition debugging schematic diagram in present embodiment；
Fig. 7 is the band-like bright dark distribution map of present embodiment LGP1；
Fig. 8 is the band-like bright dark distribution map of present embodiment LGP2.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Referring to as shown in Figure 1, present embodiment adopts the following technical scheme that it by upper light guide plate and lower guide-lighting board group
It closes；The upper light guide plate and lower light guide plate are made of multiple band-like sites splicings respectively, each band-like site respectively with
The independent adjustable LED light source coupling of brightness.
Preferably, the upper light guide plate and lower light guide plate are coupled by one group of unilateral LED light source respectively, double layer light-guiding
Plate is the bright dark subregion for using 2 groups of LED light sources independently to couple control light guide plate.
Preferably, the upper light guide plate and lower light guide plate are coupled by two groups of LED light sources of bilateral respectively, double layer light-guiding
Plate is the bright dark subregion for using 4 groups of LED light sources independently to couple control light guide plate.
Preferably, the band-like site brightness subregion juxtaposition of the upper light guide plate and lower light guide plate completes bright invisible subsidy
It repays, to reach ideal optical homogeneity.
Preferably, the band-like bright of light guide plate is realized in the X/Y spacing variation of the upper light guide plate and lower light guide plate mesh point
Dark distribution.
Preferably, by carrying out energy value for the radium-shine energy of Laser machine stand is corresponding with the bright dark subregion of band-like site
Adjustment, pass through the band-like bright dark distribution of final practical two light guide plates of network point size, and complete two light guide plates up and down
Combined integrated light efficiency is uniformly distributed.
Present embodiment Sidelight type LED dynamic backlight mould group is by LED light source, double layer light guide board and is overlying on the bilayer
The optical diaphragm of light guide plate surface forms.
Referring to as shown in figure 8, present embodiment single-sided illumination mode LGP net-pont design, first, in accordance with common unilateral side
Enter light mode, i.e. X-axis density shelves, with the design of 1.45-0.9mm transition gradual manner, then correspond to band-like from light inputting end to light end out
The X-axis density value in band-like clear zone is reduced 0.1mm, in addition increases the X-axis density value of band-like dark space by bright dark areas position
0.1mm, and bilateral enters light mode LGP net-pont design enters light mode first, in accordance with common bilateral, i.e. X-axis density shelves are from light inputting end
It is designed to light end out to light inputting end with 1.3-1.1-1.3mm transition gradual manners, then corresponds to band-like bright dark areas position,
The X-axis density value in band-like clear zone is reduced into 0.1mm, the X-axis density value of band-like dark space is in addition increased into 0.1mm, to pass through net
The variable density of plate reaches band-like bright dark distribution；.
Referring to such as Fig. 2 --- shown in 5, the radium-shine processing of present embodiment light guide plate mesh point, by controlling Laser machine stand
Laser export energy ratio, i.e., site processing on realize light guide plate 4 band-like bright dark subregion light efficiencies, Laser machine stand it is radium-shine
Energy terms need to synchronize adjustment according to the bright dark distribution trend of the net-pont design of web plate, by the radium-shine Energy distribution of board
It is debugged by 17 radixes, the big curve of the radium-shine energy value of the light guide plate up and down of single-sided illumination mode is the bright of light guide plate
Area, the small curve of energy value are the dark space of light guide plate, and the radium-shine energy curve of upper and lower light guide plate, that is, LGP1 and LGP2 just misplaces
Distribution；The radium-shine energy curve that bilateral enters the light guide plate up and down i.e. LGP1 and LGP2 of light mode is almost overlapped distribution.
Referring to such as Fig. 6 --- shown in 8, two light guide plates of present embodiment combine light efficiency transition debugging up and down, need
The bright dark distribution of upper and lower two light guide plates is alternately combined, the effect of LED light source detection optical profile is illuminated, for
The light efficiency transition of appearance is bad to be adjusted by region energy value corresponding in 17 parameter values in the modification radium-shine energy value of board
The transition for trying light guide plate is bad.
After adopting the above structure, the present invention is the beneficial effects are as follows: the radium-shine light guide plate of bilayer of the present invention, uses
The site zoning unit of the double-deck radium-shine light guide plate replaces directly descend array unit, and preferable realization dynamic local light efficiency controls,
Accurately local controlled light effect can effectively be reached, to realize dynamic backlight function, realize function simultaneously using lower cost
It can be with effectively save electric energy.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (6)
1. the double-deck radium-shine light guide plate, it is characterised in that: it is formed by upper light guide plate and lower light guide plate combination；The upper light guide plate
Be made of respectively multiple band-like sites splicings with lower light guide plate, each band-like site respectively with the adjustable LED of independent brightness
Light source couples.
2. the radium-shine light guide plate of bilayer according to claim 1, it is characterised in that: the upper light guide plate and lower light guide plate point
It is not coupled by one group of unilateral LED light source, double layer light guide board is that 2 groups of LED light sources is used independently to couple the bright dark of control light guide plate
Subregion.
3. the radium-shine light guide plate of bilayer according to claim 1, it is characterised in that: the upper light guide plate and lower light guide plate point
It is not coupled by two groups of LED light sources of bilateral, double layer light guide board is that 4 groups of LED light sources is used independently to couple the bright dark of control light guide plate
Subregion.
4. the radium-shine light guide plate of bilayer according to claim 1, it is characterised in that: the upper light guide plate and lower light guide plate
Band-like site brightness subregion juxtaposition is completed bright invisible subsidy and is repaid, to reach ideal optical homogeneity.
5. the radium-shine light guide plate of bilayer according to claim 1, it is characterised in that: the upper light guide plate and lower guide-lighting expanded metals
The band-like bright dark distribution of light guide plate is realized in the X of point, the variation of Y spacing.
6. the radium-shine light guide plate of bilayer according to claim 1, it is characterised in that: by by the radium-shine energy of Laser machine stand with
The bright dark subregion of band-like site carries out the adjustment of energy value accordingly, passes through final practical two light guide plates of network point size
Band-like bright dark distribution, and the light efficiency for completing two light guide plate combination one up and down is uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727921.1A CN109425924A (en) | 2017-08-23 | 2017-08-23 | The double-deck radium-shine light guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710727921.1A CN109425924A (en) | 2017-08-23 | 2017-08-23 | The double-deck radium-shine light guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109425924A true CN109425924A (en) | 2019-03-05 |
Family
ID=65498571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710727921.1A Pending CN109425924A (en) | 2017-08-23 | 2017-08-23 | The double-deck radium-shine light guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109425924A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010055108A (en) * | 2005-07-27 | 2010-03-11 | Seiko Epson Corp | Image display device and image display method |
| CN202837585U (en) * | 2012-10-15 | 2013-03-27 | 深圳市嘉泰宏实业有限公司 | Backlight laser dot light guide plate |
| WO2017068845A1 (en) * | 2015-10-19 | 2017-04-27 | ソニー株式会社 | Light-emission device, display device, and illumination device |
| CN206301061U (en) * | 2017-01-04 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
-
2017
- 2017-08-23 CN CN201710727921.1A patent/CN109425924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010055108A (en) * | 2005-07-27 | 2010-03-11 | Seiko Epson Corp | Image display device and image display method |
| CN202837585U (en) * | 2012-10-15 | 2013-03-27 | 深圳市嘉泰宏实业有限公司 | Backlight laser dot light guide plate |
| WO2017068845A1 (en) * | 2015-10-19 | 2017-04-27 | ソニー株式会社 | Light-emission device, display device, and illumination device |
| CN206301061U (en) * | 2017-01-04 | 2017-07-04 | 京东方科技集团股份有限公司 | A kind of backlight module and display device |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190305 |