CN104575307A - LED display screen free from moire - Google Patents
LED display screen free from moire Download PDFInfo
- Publication number
- CN104575307A CN104575307A CN201410812072.6A CN201410812072A CN104575307A CN 104575307 A CN104575307 A CN 104575307A CN 201410812072 A CN201410812072 A CN 201410812072A CN 104575307 A CN104575307 A CN 104575307A
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- CN
- China
- Prior art keywords
- led lamp
- lamp panel
- led display
- light
- led
- 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
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- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 239000011324 bead Substances 0.000 claims abstract description 23
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 abstract description 9
- 230000000295 complement effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention is fit for the technical field of LED (Light Emitting Diode) display and provides an LED display screen free from moire. The LED display screen free from moire comprises an LED lamp panel and a light diffusion structure, wherein a plurality of LED lamp beads distributed in an array are arranged on the LED lamp panel; the light diffusion structure is arranged on a light-emitting side of the LED lamp panel; the light diffusion structure comprises frames in an array form; the space is divided into a plurality of subspaces by the frames; a light diffusion medium is arranged in each subspace; the width of the top, far away from the LED lamp panel, of each frame is less than 0.3mm. According to the invention, the light diffusion structure is arranged on the light-emitting side of the LED lamp panel; the light emitted from the LED lamp beads forms a uniform area light source by passing through the light diffusion medium; the width of the top of each frame is extremely narrow, so that the periodicity of the pixel structure is weakened; when a CCD (Charge Coupled Device) or CMOS (Complementary Metal-Oxide-Semiconductor Transistor) array camera is used for shooting the LED display screen, no moire is generated; since each LED lamp bead corresponds to each subspace and different LED lamp beads are free from optical crosstalk, so that the contrast ratio of a picture is ensured.
Description
Technical field
The invention belongs to technical field of LED display, particularly a kind of LED display without moire fringes.
Background technology
When taking LED display with the video camera with CCD or CMOS array, there will be the moire fringes phenomenon making us perplexing.This is because the spatial frequency of the periodic structure of CCD or CMOS array and the periodicity dot structure of LED display interacts, and shows moire fringes over the display after defining video camera shooting.The method of traditional solution LED display moire fringes installs light-diffusing film additional before LED display, the point luminescence of LED display is become face luminescence, the method effectively can eliminate moire fringes, but to be the mode of sacrificing contrast deal with problems for it, because optical crosstalk is serious between neighbor, the display frame acutance of LED display and contrast reduce, and look misty a slice.In order to solve this problem, Chinese patent application CN103985320A proposes a kind of method suppressing moire fringes and the display device suppressing moire fringes, makes to offset certain angle between CCD or the CMOS array horizontal line of image capture device and the pel array horizontal line of collected display device to weaken moire fringes.In any case the anglec of rotation in the program, although moire fringes alleviates to some extent, but do not eliminate the periodicity of LED display pixel in essence, therefore moire fringes can not be eliminated in essence, still moire fringes is there will be in some position, particularly in camera lens drawing process, moire fringes is particularly evident, has a strong impact on shooting.
Summary of the invention
The object of the present invention is to provide a kind of LED display without moire fringes, be intended to the problem occurring moire fringes when solving shooting LED display.
The present invention realizes like this, a kind of LED display without moire fringes, comprise LED lamp panel, it is provided with multiple LED lamp bead of array arrangement, also comprise the optical scattering structure of the light emission side being arranged at described LED lamp panel, described optical scattering structure comprises the framework of array, and its space, place is divided into multiple subspace by described framework, in each described subspace, be provided with light dispersive medium, the width at the described framework top of described LED lamp panel is dorsad below 0.3mm.
The present invention is owing to arranging above-mentioned optical scattering structure in the light emission side of LED lamp panel, the top width of framework is set to below 0.3mm, the light that LED lamp bead sends forms uniform area source in its exiting surface after light dispersive medium, because frame roof width is extremely narrow, weaken the periodicity of dot structure, therefore the light that LED lamp bead sends there will not be significantly dark line array at light dispersive medium exiting surface place, the exiting surface of whole optical scattering structure is a uniform area source, because this eliminating the Production conditions of moire fringes, and due to the corresponding sub spaces of each LED lamp bead, can not optical crosstalk between different LED lamp pearl, ensure that the contrast of picture, therefore when using CCD or CMOS array camera shooting LED display, both the interference of moire fringes can have been eliminated, clear and the high-contrast of shooting picture can be ensured again, ensure the shooting effect of high-quality.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of the LED display without moire fringes that the embodiment of the present invention provides;
Fig. 2 is the planar structure schematic diagram of the LED display without moire fringes that the embodiment of the present invention provides;
Fig. 3 is the optical scattering structure schematic diagram () of the LED display without moire fringes that the embodiment of the present invention provides;
Fig. 4 is the optical scattering structure schematic diagram (two) of the LED display without moire fringes that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with specific embodiment, specific implementation of the present invention is described in detail:
Please refer to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of LED display without moire fringes, comprises LED lamp panel 01, and it is provided with multiple LED lamp bead 02, and LED lamp bead 02 comprises RGB three primary colours chip.LED lamp bead 02 is generally array arrangement, this LED display also comprises the optical scattering structure 03 of the light emission side being arranged at LED lamp panel 01, as Fig. 3, this optical scattering structure 03 comprises the framework 031 of array, its space, place is separated into multiple subspace by framework 031, the corresponding LED lamp bead 02 of every sub spaces, namely framed structure is consistent with the arrangement architecture of LED lamp bead 02, light dispersive medium 032 is provided with in every sub spaces, using the light-guide device as LED lamp bead 02, the width at framework 031 top of LED lamp panel 01 is dorsad below 0.3mm, to weaken the periodicity of dot structure, and then elimination moire fringes.
Further, what the width at framework 031 top can also be arranged is narrower, as being less than 0.2mm, or the exiting surface that the light dispersive medium 032 in different subspace is linked into an integrated entity in frame roof, like this, framework 031 top can not be exposed, and whole exiting surface does not have dark line, better can eliminate moire fringes.Or, as Fig. 4, light dispersive medium 032 can also be made to be formed at the top of framework 031 there is certain thickness light diffusion layer 033, the further homogeneity improving emergent light, and the thickness of this light diffusion layer 033 ensures the emergent light generation crosstalk that can not make LED lamp bead 02 on the basis of eliminating moire fringes.
Further ginseng Fig. 3, in order to improve the light-out effect of LED lamp bead 02, the longitudinal section of framework 031 is trapezoidal, width bottom it is greater than the width at its top, so every sub spaces is lower narrow wide bowl cup-shaped, the light that LED lamp bead 02 sends with larger angle injection, realizes light diffusion effect after the frame side wall reflection of bowl cup-shaped.
In the present embodiment, framework 031 is opaque metal framework or plastic frame, and light dispersive medium 032 can for being mixed with silica gel or the resin medium of glass microballoon, or be lens or lens combination.Directly can make framework 031 on lamp plate 01, then fill light dispersive medium 032 or mounted lens or lens combination wherein, also first can make optical scattering structure 03 and be assembled to again in LED lamp panel 01.
Further, above-mentioned optical scattering structure 03 can cover part LED lamp panel 01, is then spliced into by multiple optical scattering structure 03 one overall, makes its projection in LED lamp panel 01 all cover LED lamp panel 01.What this optical scattering structure 03 can also be made is enough large to make an optical scattering structure 03 just can cover whole LED lamp panel 01.If factors such as consideration area its framed structure instability excessive or not easily making, first can make several optical scattering structures 03 is spliced again, or has first spliced framework, then fills light dispersive medium 032 in framework 031.
The present invention is owing to arranging above-mentioned optical scattering structure 03 in the light emission side of LED lamp panel 01, the top width of framework 031 is set to below 0.3mm, the light that LED lamp bead 02 sends forms uniform area source in its exiting surface after light dispersive medium 032, because frame roof width is extremely narrow, weaken the periodicity of dot structure, therefore the light that LED lamp bead 02 sends there will not be significantly dark line array at light dispersive medium 032 exiting surface place, the exiting surface of whole optical scattering structure 03 is a uniform area source, because this eliminating the Production conditions of moire fringes, and due to the corresponding sub spaces of each LED lamp bead 02, can not optical crosstalk between different LED lamp pearl, ensure that the contrast of picture, therefore when using CCD or CMOS array camera shooting LED display, both the interference of moire fringes can have been eliminated, clear and the high-contrast of shooting picture can be ensured again, ensure the shooting effect of high-quality.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the LED display without moire fringes, it is characterized in that, comprise LED lamp panel, it is provided with multiple LED lamp bead of array arrangement, also comprise the optical scattering structure of the light emission side being arranged at described LED lamp panel, described optical scattering structure comprises the framework of array, and its space, place is divided into multiple subspace by described framework, in each described subspace, be provided with light dispersive medium, the width at the described framework top of described LED lamp panel is dorsad below 0.3mm.
2. LED display as claimed in claim 1, is characterized in that, described subspace and described LED lamp bead one_to_one corresponding.
3. LED display as claimed in claim 1, is characterized in that, described frame surface is greater than the width at its top to the width of the bottom of described LED lamp panel.
4. LED display as claimed in claim 1, it is characterized in that, described framework is opaque metal framework or plastic frame.
5. LED display as claimed in claim 1, it is characterized in that, described smooth dispersive medium is the silica gel or the resin medium that are mixed with glass microballoon.
6. LED display as claimed in claim 1, it is characterized in that, described smooth dispersive medium is lens or lens combination.
7. LED display as claimed in claim 1, it is characterized in that, the light emission side of described LED lamp panel arranges a described optical scattering structure, and the projection of described optical scattering structure in described LED lamp panel all covers described LED lamp panel.
8. LED display as claimed in claim 1, is characterized in that, the light emission side of described LED lamp panel arranges at least two described optical scattering structures, and the projection of the entirety that described optical scattering structure is spliced in described LED lamp panel all covers described LED lamp panel.
9. LED display as claimed in claim 1, it is characterized in that, described LED lamp bead comprises RGB three primary colours chip.
10. LED display as claimed in claim 1, is characterized in that, the light dispersive medium in described subspace is connected in the top of described framework and forms one exiting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812072.6A CN104575307A (en) | 2014-12-23 | 2014-12-23 | LED display screen free from moire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812072.6A CN104575307A (en) | 2014-12-23 | 2014-12-23 | LED display screen free from moire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104575307A true CN104575307A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410812072.6A Pending CN104575307A (en) | 2014-12-23 | 2014-12-23 | LED display screen free from moire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104575307A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161012A (en) * | 2015-08-28 | 2015-12-16 | 厦门科安技术开发有限公司 | LED display screen moire-eliminating and color-mixing face cover |
| CN105206188A (en) * | 2015-10-15 | 2015-12-30 | 厦门科安技术开发有限公司 | Light-expanding imaging device for eliminating moire of LED display screen |
| CN106803866A (en) * | 2016-12-29 | 2017-06-06 | 上海天马有机发光显示技术有限公司 | The image processing method and system of display panel |
| CN106898271A (en) * | 2017-04-21 | 2017-06-27 | 中山东菱威力电器有限公司 | A kind of LED display |
| CN108227302A (en) * | 2018-01-02 | 2018-06-29 | 联想(北京)有限公司 | Display screen |
| CN108469715A (en) * | 2018-04-11 | 2018-08-31 | 郑州胜龙信息技术股份有限公司 | A kind of display methods based on the projection of pixel light source microarray |
| CN110349510A (en) * | 2018-04-08 | 2019-10-18 | 北京环宇蓝博科技有限公司 | A kind of curtain cover for LED display screen |
| WO2020063703A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| WO2020063705A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969957A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110969951A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display |
| CN110969952A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display |
| CN112259008A (en) * | 2020-11-10 | 2021-01-22 | 深圳市中科创激光技术有限公司 | LED display screen mask structure and LED display screen |
| CN112289207A (en) * | 2019-07-23 | 2021-01-29 | 深圳光峰科技股份有限公司 | Shading frame and LED display device |
| CN113683971A (en) * | 2021-08-06 | 2021-11-23 | 深圳市美成胶粘制品有限公司 | Functional film of LED display screen and preparation method thereof |
| JP7441241B2 (en) | 2019-05-03 | 2024-02-29 | ジェイティー インターナショナル エスエイ | Aerosol generator with illuminated status indicator |
-
2014
- 2014-12-23 CN CN201410812072.6A patent/CN104575307A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105161012A (en) * | 2015-08-28 | 2015-12-16 | 厦门科安技术开发有限公司 | LED display screen moire-eliminating and color-mixing face cover |
| CN105206188A (en) * | 2015-10-15 | 2015-12-30 | 厦门科安技术开发有限公司 | Light-expanding imaging device for eliminating moire of LED display screen |
| CN106803866A (en) * | 2016-12-29 | 2017-06-06 | 上海天马有机发光显示技术有限公司 | The image processing method and system of display panel |
| CN106803866B (en) * | 2016-12-29 | 2019-08-06 | 上海天马有机发光显示技术有限公司 | The image processing method and system of display panel |
| CN106898271A (en) * | 2017-04-21 | 2017-06-27 | 中山东菱威力电器有限公司 | A kind of LED display |
| CN108227302A (en) * | 2018-01-02 | 2018-06-29 | 联想(北京)有限公司 | Display screen |
| CN110349510A (en) * | 2018-04-08 | 2019-10-18 | 北京环宇蓝博科技有限公司 | A kind of curtain cover for LED display screen |
| CN110349510B (en) * | 2018-04-08 | 2024-07-16 | 北京环宇蓝博科技有限公司 | A curtain cover for LED display screen |
| CN108469715A (en) * | 2018-04-11 | 2018-08-31 | 郑州胜龙信息技术股份有限公司 | A kind of display methods based on the projection of pixel light source microarray |
| CN110970406A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| WO2020063703A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969951A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display |
| WO2020063705A1 (en) * | 2018-09-28 | 2020-04-02 | 深圳光峰科技股份有限公司 | Led display screen |
| CN110969952A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display |
| US12142713B2 (en) * | 2018-09-28 | 2024-11-12 | Appotronics Corporation Limited | LED display screen |
| US12057534B2 (en) | 2018-09-28 | 2024-08-06 | Appotronics Corporation Limited | Light emitting diode display screen for improving illuminance uniformity thereof |
| CN110969951B (en) * | 2018-09-28 | 2021-07-23 | 深圳光峰科技股份有限公司 | LED display |
| CN110969957A (en) * | 2018-09-28 | 2020-04-07 | 深圳光峰科技股份有限公司 | LED display screen |
| US20220005988A1 (en) * | 2018-09-28 | 2022-01-06 | Appotronics Corporation Limited | Led display screen |
| CN110969957B (en) * | 2018-09-28 | 2022-02-18 | 深圳光峰科技股份有限公司 | LED display screen |
| CN110970406B (en) * | 2018-09-28 | 2022-05-13 | 深圳光峰科技股份有限公司 | LED display screen |
| JP7441241B2 (en) | 2019-05-03 | 2024-02-29 | ジェイティー インターナショナル エスエイ | Aerosol generator with illuminated status indicator |
| CN112289207A (en) * | 2019-07-23 | 2021-01-29 | 深圳光峰科技股份有限公司 | Shading frame and LED display device |
| US12074265B2 (en) | 2019-07-23 | 2024-08-27 | Appotronics Corporation Limited | Light-shielding frame and LED display device |
| CN112259008A (en) * | 2020-11-10 | 2021-01-22 | 深圳市中科创激光技术有限公司 | LED display screen mask structure and LED display screen |
| CN113683971A (en) * | 2021-08-06 | 2021-11-23 | 深圳市美成胶粘制品有限公司 | Functional film of LED display screen and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
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