CN105445845B - The optical lens mirror guiding device of LED screen - Google Patents
The optical lens mirror guiding device of LED screen Download PDFInfo
- Publication number
- CN105445845B CN105445845B CN201511005240.1A CN201511005240A CN105445845B CN 105445845 B CN105445845 B CN 105445845B CN 201511005240 A CN201511005240 A CN 201511005240A CN 105445845 B CN105445845 B CN 105445845B
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- guiding device
- led light
- led
- led screen
- terrace
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Classifications
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- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
A kind of optical lens mirror guiding device of LED screen, it is characterized in that, the guiding device has several with the consistent terrace with edge lens arrangement of LED light quantity in LED screen and several and the consistent concavees lens structure of LED light quantity, concavees lens structure is for covering at outside the LED light in LED screen, terrace with edge lens arrangement and the concavees lens two sides that be located at guiding device opposite.The present invention dissipates LED light light using concavees lens structure, and dioptric imaging is carried out to the light dissipated using terrace with edge lens arrangement, to form numerous LED light image clear zones in LED light two sides, it spreads the light of LED light more evenly, can be eliminated between pixel with this and there are problems that the apparent black area that do not shine.Simultaneously as foring multiple LED light images clear zone, the spatial frequency of original LED light is just changed, so that the spatial frequency variance of the spatial frequency of LED light image and CCD increase, and then moire fringes phenomenon can be eliminated.The optical lens mirror guiding device structure of LED screen of the invention is simple, and handling ease is easy to produce in batches, has very strong practicability.
Description
[technical field]
The present invention relates to Optical devices, in particular to a kind of elimination LED screen curtain moire fringes phenomenon and not luminous zone grid
The optical lens mirror guiding device of the LED screen of black line phenomenon.
[background technique]
The LED light in LED screen scene plot face and LED light gap are usually all array arrangements, with certain periodicity.
On common LED screen, since LED light light-emitting area is less than physical table area shared by pixel, cause to exist between pixel obvious
Not shine black area, form latticed periodic structure.And the image pickup device of current photographic equipment is face battle array mostly
CCD is likewise supplied with periodic structure, and the spatial frequency of CCD connects compared with the spatial frequency that LED light in LED screen is distributed
Closely, so when picture pick-up device shoots LED screen curtain, it may appear that apparent moire fringes phenomenon.And moire fringes phenomenon is not to be clapped
Information needed for taking the photograph image itself, therefore need to eliminate it.
It is essentially all by adding before LED screen in existing elimination not luminous black area and moire fringes phenomenon technology
Optical diffusion film or light diffusing sheet are filled, by the way that acutance processing is atomized, reduced to LED light light image, adds certain ratio using it
The diffusion effect of example light spread powder eliminates do not shine black area and moire fringes phenomenon to change the spatial frequency for the black area that do not shine.It is existing
Though there is this technology that can solve the problems, such as this to a certain extent, which reduce front amount of lights, greatly reduce the bright of screen
Degree is to be realized by sacrificing screen-picture, is not optimal solution.
[summary of the invention]
Present invention seek to address that the above problem, and LED screen curtain moire fringes phenomenon and grid black line can be eliminated by providing one kind
The optical lens mirror guiding device of the LED screen of phenomenon.
To achieve the above object, the present invention provides a kind of optical lens mirror guiding device of LED screen, feature exists
Have several with the consistent terrace with edge lens arrangement of LED light quantity in LED screen and several and LED light in, the guiding device
The consistent concavees lens structure of quantity, the concavees lens structure is for covering at outside the LED light in LED screen, the terrace with edge lens
Structure and the concavees lens two sides that be located at guiding device opposite.
The terrace with edge lens arrangement uniform intervals are corresponded with the LED light in LED screen respectively；The concavees lens
Structure uniform intervals are corresponded with the LED light in LED screen respectively.
The guiding device is plate-like, several grooves being spaced apart from each other are uniformly provided on one side surface, described recessed
Slot is corresponded with the LED light in LED screen respectively, is equipped with the concavees lens structure at the top of the groove, described recessed
The focus of mirror structure and the groove are located at the same side of the guiding device.
The terrace with edge lens knot is uniformly provided on another side surface opposite with the groove of the guiding device
Structure.
The upper surface of each terrace with edge lens arrangement is concordant, and the virtual focus of each concavees lens structure is in the same plane and described
Plane parallel where the focus of the upper surface of terrace with edge lens arrangement and the concavees lens structure.
Fixed structure is equipped on a reeded side surface in setting for the guiding device, which is used for will be guide-lighting
Device is fixed on outside LED screen.
The fixed structure includes adhesive structure and screw fixed structure.
Favorable attributes of the invention are, efficiently solve the above problem.The present invention provides a kind of novel LED screen
Optical lens mirror guiding device, LED light light is dissipated using concavees lens structure, and using terrace with edge lens arrangement to hair
The light dissipated, which carries out dioptric imaging, expands the light of LED light to form numerous LED light image clear zones 3 in LED light two sides
It dissipates more evenly, can be eliminated between pixel with this and there are problems that the apparent black area that do not shine.Simultaneously as foring multiple LED light
Image clear zone 3 just changes the spatial frequency of original LED light, so that the space of the spatial frequency of LED light image and CCD
Frequency difference increases, and then can eliminate moire fringes phenomenon.The optical lens mirror guiding device structure letter of LED screen of the invention
Single, handling ease is easy to produce in batches, has very strong practicability.
[Detailed description of the invention]
Fig. 1 is the positive structure schematic of the optical lens mirror guiding device of LED screen of the invention.
Fig. 2 is the structure schematic diagram of the optical lens mirror guiding device of LED screen of the invention.
Fig. 3 is the use schematic diagram of the optical lens mirror guiding device of LED screen of the invention.
Fig. 4 is schematic illustration when not applying the optical lens mirror guiding device of LED screen before LED screen.
Fig. 5 is schematic illustration when adding concavees lens structure before LED screen.
Fig. 6 is schematic illustration when adding the optical lens mirror guiding device of LED screen of the present invention before LED screen.
[specific embodiment]
The following example is that of the invention is explained further and being supplemented, and is not limited in any way to the present invention.
As shown in FIG. 1 to 3, the optical lens mirror guiding device 1 of LED screen of the invention be applied to LED screen 2 it
Before, be mainly used for eliminate not shine black area, and eliminate camera shooting when LED screen 2 due to its 21 space arrangement frequency of LED light with
The spatial frequency of photographic device CCD relatively caused by moire fringes phenomenon.The guiding device 1 is in tabular, in one
It is spaced apart on side surface and is equipped with several grooves 13.The size of the groove 13 and the size of LED light 21 of LED screen 2 are related,
It is more bigger than LED light 21, is advisable with can independently accommodate the size of a LED lamp 21.The groove 13 is uniformly laid, arrangement
The arrangement mode of mode and the LED light 21 in LED screen 2 is consistent, so that the spatial frequency of the two is consistent.Each groove 13 it
Between the distance that is spaced and related, the distance between each LED light 21 such as distance at a distance from the interval of LED light 21 in LED screen 2.Institute
The LED light 21 stated in groove 13 and LED screen 2 corresponds, and adjacent LED light 21 is spaced apart.The shape of the groove 13
Shape can be set to diversified forms, and the cross section of the groove 13 is either rectangle, is also possible to circle.In the present embodiment, institute
The cross section for stating groove 13 is square.The form and dimension of each groove 13 is consistent respectively.
As shown in figure 3, being respectively equipped with concavees lens structure 12 on the top of each groove 13.The ball of the concavees lens structure 12
It is equipped with the curving of groove 13 facing towards guiding device 1, the focus of concavees lens structure 12 is located at the groove 13
The same side of the guiding device 1.The form and dimension difference of each concavees lens structure 12 is consistent, makes the concavees lens structure
12 focus is in the same plane.The concavees lens structure 12 is for dissipating light.
As shown in Figure 1, Figure 3, in another side surface of the guiding device 1, i.e., be equipped with the opposite other side of groove 13
Terrace with edge lens arrangement 11 is offered on surface respectively.The terrace with edge lens arrangement 11 is spaced apart from each other respectively, and uniformly distributed, row
Column mode and the arrangement mode of the LED light 21 in LED screen 2 are consistent, so that the spatial frequency of the two is consistent.The present embodiment
In, the bottom surface size of the terrace with edge lens arrangement 11 is greater than the cross section size of the groove.The terrace with edge lens arrangement 11 with
12 position of concavees lens structure corresponds, and corresponds with LED light 21.The shape of each terrace with edge lens arrangement 11 and big
It is small to be consistent respectively, it can be a variety of polygon terrace with edge lens arrangements 11, such as truncated rectangular pyramids lens arrangement, eight terrace with edge lens arrangements
Or other more terrace with edge lens arrangements etc., it such as can be on the basis of truncated rectangular pyramids lens arrangement to the corner angle seamed edge of truncated rectangular pyramids lens arrangement
It carries out chamfered and forms corresponding polygon prism face structure.The upper surface flush of the terrace with edge lens arrangement 11, is located at
On same plane, and plane phase of the upper surface of the terrace with edge lens arrangement 11 where with the virtual focus of the concavees lens structure 12
In parallel, parallel equipped with a side surface of groove 13 and with guiding device 1.The concavees lens structure 12 is for carrying out light
Diverging outward increases propagation angle, changes the black area occupation rate that do not shine of LED screen in a manner of increasing light filling rate, then
Anaclasis is oriented to the front of LED screen by the refraction action of terrace with edge lens arrangement 11, is not losing LED pixel point
In the case of increase luminous zone spatial frequency, and then eliminate LED screen it is upper not shine black area, and eliminate shooting LED screen when picture
The moire fringes phenomenon generated in face.
To be equipped with and fixing on the side surface equipped with groove 13 of the guiding device 1 convenient for assembling guiding device 1
Structure.Various well known fixed structures can be used in the fixed structure, such as adhesive structure, screw fixed structure.It, can be when implementation
Adhesive is uniformly smeared on the side surface equipped with groove 13 of the guiding device 1, guiding device 1 is then bonded in LED
Before screen 2, correspond the groove 13 of guiding device 1 in the LED light 21 in LED screen 2, and LED light 21 covered at recessed
In slot 13.
When production, according to the circuit pcb board size of LED screen 2 and LED light size used, pass through well known work
Skill, produce the terrace with edge lens arrangement 11, groove 13, concavees lens structure 12 mold, then again by machine to mold into
Row is molded type and goes out guiding device of the invention, or obtains guiding device of the invention by the modes such as carving, imprinting.Its
Material can be made of one or both of common materials such as PC, PMMA, ABS, MS mixed transparent material, can add in manufacturing process
Enter a small amount of toning pigment, its color is made to become grey black or black, and then helps the contrast and human eye for improving LED screen
Watch comfort level.
In use, as shown in figure 3, LED screen can be fixed in by the fixed structure being arranged on guiding device 1
It is used before 2.The LED light 21 of the 13 face LED screen 2 of groove of guiding device 1, and each LED light 21 is spaced apart.Each LED light 21
The light of sending is dissipated through concavees lens structure 12 and is reflected away by the side and upper surface of terrace with edge lens arrangement 11, due to recessed
Lens have light diffusion function, and the side of terrace with edge lens arrangement 11 has the function of prismatic lens, has light energy forward
The function of side's refraction transmitting goes out so as to spread out the light of LED light 21 in a more uniform way so as to adjust front
The ratio of light solves the problems, such as there is the apparent black area that do not shine between pixel, and changes LED light by terrace with edge lens arrangement 11
The spatial frequency variance of 21 spatial frequency, the spatial frequency and CCD that make LED light 21 increases, and then reduces or eliminates moire fringes
Phenomenon.
For the action principle of the optical lens mirror guiding device 1 convenient for detailed description of the present invention LED screen, the present embodiment
It is illustrated in conjunction with different schematic diagrames:
Fig. 4 shows state when not installing guiding device 1 before 21 display screen of LED light.The light direct projection of LED light 21 goes out
It goes, since separately, amount light is less in interval region between LED light 21, compared to the luminous zone of LED light 21,
It can be referred to as the black area that do not shine.Due to 21 arrangement regulation of LED light, form latticed periodic structure, LED light 21 due to
The clear zone that rule arrangement is formed still can be significantly observed.It should be noted that the light that LED light issues not is directional light, but
Light is scattered, and Fig. 4 is illustrated into directional light, primarily to comparing prominent concavees lens to the disperse function of light: because of LED
The scattering light that lamp itself issues, compared to the light after concavees lens scattering, the scattering light scattering degree of LED light is low, and is prominent
The difference of two kinds of dispersion effects, so the light of LED light has been illustrated as directional light in Fig. 4~Fig. 6.
As shown in figure 5, when increasing groove 13 and concavees lens structure 12 before LED light 21, since concavees lens have light
Disperse function, the light of LED light 21 no longer as shown in Figure 4 as concentrate, light more uniformly, but can not make LED light at this time
21 are consistent substantially with the amount light of amount light and 21 luminous zone of LED light in 21 interval region of LED light, 21 light of LED light
After dissipating still black area can be observed compared to the less apparent clear zone Fig. 4 and not shone in 21 luminous zone of LED light.
As shown in fig. 6, when increasing terrace with edge lens arrangement 11 before concavees lens structure 12, due to the optically focused function of terrace with edge lens
Can, the light that LED light 21 issues forms LED light image after the refraction of the side of terrace with edge lens arrangement 11, in the two sides of LED light 21
Clear zone 3, concavees lens dissipate the light issued due to LED light 21, will form multiple LED light in the two sides of LED light 21
Image clear zone 3, which is located in the black area that do not shine that LED light 21 and LED light 21 are spaced, so as to eliminate picture
There are problems that the apparent black area that do not shine between element.Simultaneously as foring multiple LED light images clear zone 3, original is just changed
The spatial frequency of some LED light 21, so that the spatial frequency variance of the spatial frequency of 21 image of LED light and CCD increase, Jin Erke
Eliminate moire fringes phenomenon.
Although being disclosed by above embodiments to the present invention, the scope of the invention is not limited to this,
Under conditions of present inventive concept, above each component can with technical field personnel understand similar or equivalent element come
Replacement.
Claims (5)
1. a kind of optical lens mirror guiding device of LED screen, which is characterized in that the guiding device (1) is plate-like, one side
It is uniformly provided with several grooves (13) being spaced apart from each other on surface, is equipped with concavees lens structure at the top of the groove (13)
(12), the concavees lens structure (12) is spherical concavees lens, in opposite another of the guiding device (1) and the groove (13)
Several terrace with edge lens arrangements (11), the terrace with edge lens arrangement (11) and the concavees lens structure are uniformly provided on one side surface
(12) the opposite two sides of guiding device (1) are located at, quantity and position respectively correspond, when the guiding device (1) covers at
When LED screen (2) is outer, LED that the concavees lens structure (12) and the terrace with edge lens arrangement (11) issue LED screen (2)
Lamp wiring carries out dioptric imaging and can eliminate the not luminous black area between LED light (21) and change the space of original LED light (21)
Frequency is to eliminate moire fringes phenomenon.
2. the optical lens mirror guiding device of LED screen as described in claim 1, which is characterized in that the terrace with edge lens knot
Structure (11) uniform intervals are corresponded with the LED light (21) on LED screen (2) respectively；The concavees lens structure (12) is uniform
Interval is corresponded with the LED light (21) on LED screen (2) respectively.
3. the optical lens mirror guiding device of LED screen as described in claim 1, which is characterized in that each terrace with edge lens arrangement
(11) upper surface is concordant, and the virtual focus of each concavees lens structure (12) is in the same plane, and the terrace with edge lens arrangement
(11) plane parallel where the focus of upper surface and the concavees lens structure (12).
4. the optical lens mirror guiding device of LED screen as described in claim 1, which is characterized in that in the guiding device
(1) the side surface equipped with groove (13) is equipped with fixed structure, and the fixed structure is for guiding device (1) to be fixed on
LED screen (2) is outside.
5. the optical lens mirror guiding device of LED screen as claimed in claim 4, which is characterized in that the fixed structure packet
Include adhesive structure and screw fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511005240.1A CN105445845B (en) | 2015-12-28 | 2015-12-28 | The optical lens mirror guiding device of LED screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511005240.1A CN105445845B (en) | 2015-12-28 | 2015-12-28 | The optical lens mirror guiding device of LED screen |
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| Publication Number | Publication Date |
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| CN105445845A CN105445845A (en) | 2016-03-30 |
| CN105445845B true CN105445845B (en) | 2019-05-31 |
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| CN201511005240.1A Active CN105445845B (en) | 2015-12-28 | 2015-12-28 | The optical lens mirror guiding device of LED screen |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6812713B2 (en) * | 2016-09-16 | 2021-01-13 | 大日本印刷株式会社 | Array type display device |
| CN107388097B (en) * | 2017-07-18 | 2023-08-08 | 歌尔科技有限公司 | Light guide structure of LED lamp and robot eye |
| CN108288440A (en) * | 2018-02-05 | 2018-07-17 | 广州慧玥文化传播有限公司 | High-resolution LED screen based on physics interpolation |
| CN110390891B (en) * | 2019-08-05 | 2020-07-17 | 深圳市玖润光电科技有限公司 | L ED display screen mask |
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| CN205229510U (en) * | 2015-12-28 | 2016-05-11 | 深圳市真屏科技发展有限公司 | Optical lens formula leaded light device of LED screen |
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| KR100658164B1 (en) * | 2005-04-15 | 2006-12-15 | 한국생산기술연구원 | Manufacturing method of slanted-pyramid microlens and it's application to Light Guide Plate |
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|---|---|---|---|---|
| CN101650448A (en) * | 2008-08-12 | 2010-02-17 | 比亚迪股份有限公司 | Prism sheet and backlight device with same |
| CN101988644A (en) * | 2009-07-31 | 2011-03-23 | 富准精密工业(深圳)有限公司 | Light-emitting diode (LED) module |
| CN101713511A (en) * | 2009-10-09 | 2010-05-26 | 苏州佳世达电通有限公司 | Light source structure and scanning device |
| CN202600176U (en) * | 2012-04-11 | 2012-12-12 | 京东方科技集团股份有限公司 | Light guiding plate, backlight module and liquid crystal display |
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Effective date of registration: 20211009 Address after: 537300 Pingnan County Industrial Park, Guigang City, the Guangxi Zhuang Autonomous Region Patentee after: Guangxi zhongguangying photoelectric Co.,Ltd. Address before: 518000 floor 4, No. 347-1, pinglong East Road, Pinghu Town, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ZHENPING TECHNOLOGY DEVELOPMENT Co.,Ltd. |