CN113359313B - Three-dimensional LED stereoscopic display device - Google Patents
Three-dimensional LED stereoscopic display device Download PDFInfo
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- CN113359313B CN113359313B CN202110555640.9A CN202110555640A CN113359313B CN 113359313 B CN113359313 B CN 113359313B CN 202110555640 A CN202110555640 A CN 202110555640A CN 113359313 B CN113359313 B CN 113359313B
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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Abstract
The invention relates to the technical field of three-dimensional display, in particular to a three-dimensional LED (light-emitting diode) three-dimensional display device, which comprises LED light-emitting units, a three-dimensional display film and a polarizing film, wherein the LED light-emitting units and the three-dimensional display film are respectively fixedly arranged on two sides of the polarizing film; the three-dimensional display film comprises a bonding layer, a phase difference layer and an outer surface layer which are fixed in sequence, wherein the phase difference layer comprises a first phase difference layer, a second phase difference layer, a third phase difference layer and a fourth phase difference layer; the third phase difference layer and the fourth phase difference layer are respectively arranged corresponding to the adjacent LED pixel units, and the third phase difference layer and the fourth phase difference layer are phase difference layers with opposite rotation angles, so that the problem of crosstalk of the adjacent light emitting units of the LEDs and the problem of light leakage and bright lines between the adjacent LED pixel units caused by three-dimensional LED assembly are solved.
Description
Technical Field
The invention relates to the technical field of three-dimensional display, in particular to a three-dimensional LED (light-emitting diode) stereoscopic display device.
Background
The polarization type three-dimensional display technology effectively avoids the problems that shutter three-dimensional glasses are heavy, need to be charged and high in maintenance cost, and strong discomfort is brought to eyes due to the fact that shadow watching and high-frequency flickering are needed.
In three-dimensional display, the key core index lies in the uniformity problem of three-dimensional left and right crosstalk, namely three-dimensional comfort, and the three-dimensional polarization display is superior to other technologies in terms of technology, display color and wearing comfort.
However, it is still difficult for the current three-dimensional polarization display to realize complete isolation of adjacent pixels of the LED, the adjacent lights of the left glasses and the right glasses have the problem of mutual interference, and especially, an obvious bright line is poor in the assembling process of the LED module or the LED box, so that the comfort level is further reduced, and the pursuit of people for good three-dimensional quality is limited. Therefore, a technical solution is needed to solve the above problems.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide a three-dimensional LED stereoscopic display device for solving the three-dimensional LED comfort problem.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a three-dimensional LED stereo display device comprises an LED light-emitting unit, a three-dimensional display film and a polaroid, wherein the LED light-emitting unit and the three-dimensional display film are respectively fixed on two sides of the polaroid,
the LED light-emitting unit comprises a driving unit, a plurality of LED pixel units and a packaging layer, the LED pixel units are uniformly and fixedly distributed and are electrically connected to the driving unit, gaps with the same size are arranged between every two adjacent LED pixel units and are sealed through the packaging layer, and the LED light-emitting unit is fixedly arranged on one side of the polaroid through the packaging layer;
the three-dimensional display film comprises a bonding layer, a phase difference layer and an outer surface layer which are sequentially fixed, the phase difference layer comprises a first phase difference layer, a second phase difference layer, a third phase difference layer and a fourth phase difference layer, and the three-dimensional display film is fixedly bonded to one side of the polaroid through the bonding layer;
the third phase difference layer and the fourth phase difference layer are respectively arranged corresponding to the adjacent LED pixel units, and the third phase difference layer and the fourth phase difference layer are phase difference layers with opposite rotation.
Further, the positions of the first phase difference layer and the second phase difference layer are respectively arranged corresponding to the gap.
Further, the first phase difference layer and the second phase difference layer are phase difference layers with opposite rotation.
Further, the third phase difference layer and the fourth phase difference layer are phase difference layers with opposite rotation to the first phase difference layer and the second phase difference layer which are adjacent to each other.
Further, the first retardation layer is a left-handed retardation layer.
Further, the second phase difference layer is a right optical phase difference layer.
Further, the third retardation layer is a left-handed retardation layer.
Further, the fourth retardation layer is a right-handed retardation layer.
Further, the thickness of the phase difference layer is 35-40 μm.
In conclusion, the invention has the advantages that:
when light rays of the LED light-emitting unit pass through the three-dimensional display film, under the action of the third phase difference layer and the fourth phase difference layer which are oppositely rotated, one part of the light rays realize left-handed polarized light, the other part of the light rays realize right-handed polarized light, and meanwhile, under the action of the first phase difference layer and the second phase difference layer which are oppositely rotated, left-handed circularly polarized light and right-handed circularly polarized light are also realized. The third phase difference layer and the fourth phase difference layer are respectively arranged corresponding to the adjacent LED pixel units, the positions of the first phase difference layer and the second phase difference layer are respectively arranged corresponding to the gaps, the first phase difference layer and the second phase difference layer are adjacently distributed between the third phase difference layer and the fourth phase difference layer, under the cooperation of the 3D glasses, one pair of glasses receives a polarized light, under the action of different phase differences, each pair of glasses only receives images with the same phase difference, the LED pixel part corresponding to the left eye transmits light, the non-light-emitting unit corresponding to the LED pixel unit transmits light under the action of the phase differences, and light is not transmitted, so that mutual crosstalk of light among the LED light-emitting units is avoided.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a phase difference layer distribution according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a use state of an embodiment of the invention;
the display device comprises 100 parts of an LED light-emitting unit, 101 parts of a driving unit, 102 parts of an LED pixel unit, 103 parts of an encapsulation layer, 104 parts of a gap, 200 parts of a three-dimensional display film, 201 parts of an adhesive layer, 202 parts of a phase difference layer, 2021 parts of a first phase difference layer, 2022 parts of a second phase difference layer, 2023 parts of a third phase difference layer, 2024 parts of a fourth phase difference layer, 203 parts of an outer surface layer, 300 parts of a polarizing plate.
Detailed Description
The invention will be further described with reference to the accompanying drawings and the detailed description:
the first embodiment is as follows:
as shown in fig. 1, a three-dimensional LED stereoscopic display device includes an LED light emitting unit 100, a three-dimensional display film 200, and a polarizer 300, wherein the LED light emitting unit 100 and the three-dimensional display film 200 are respectively fixed on two sides of the polarizer 300;
the LED light-emitting unit 100 comprises a driving unit 101, a plurality of LED pixel units 102 and a packaging layer 103, wherein the plurality of LED pixel units 102 are uniformly and fixedly distributed and electrically connected to the driving unit 101, gaps 104 with the same size are arranged between every two adjacent LED pixel units 102 and are sealed by the packaging layer 103, and the LED light-emitting unit 100 is fixedly arranged on one side of the polaroid 300 through the packaging layer 103;
the three-dimensional display film 200 comprises an adhesive layer 201, a phase difference layer 202 and an outer surface layer 203 which are fixed in sequence, the phase difference layer 202 comprises a first phase difference layer 2021, a second phase difference layer 2022, a third phase difference layer 2023 and a fourth phase difference layer 2024, and the three-dimensional display film 200 is fixedly adhered to one side of the polarizing plate 300 through the adhesive layer 201;
the third retardation layer 2023 and the fourth retardation layer 2024 are provided corresponding to the adjacent LED pixel units 102, respectively, and the third retardation layer 2023 and the fourth retardation layer 2024 are retardation layers that rotate oppositely.
The first phase difference layer 2021 and the second phase difference layer 2022 are disposed at positions corresponding to the slits 104, respectively.
The first retardation layer 2021 and the second retardation layer 2022 are phase difference layers having opposite rotation.
The third retardation layer 2023 and the fourth retardation layer 2024 are each a retardation layer that is optically opposite to the first retardation layer 2021 and the second retardation layer 2022 adjacent thereto.
The first retardation layer 2021 is a left-handed retardation layer.
Wherein the second retardation layer 2022 is a right-handed retardation layer.
The third retardation layer 2023 is a left-handed retardation layer.
Wherein the fourth retardation layer 2024 is a right-handed retardation layer.
Wherein the thickness of the phase difference layer 202 is 35-40 μm.
As shown in fig. 2, in the technical implementation manner of the present invention, when the LED light emitting unit passes through the three-dimensional display film 200 via the three-dimensional display film 100, under the respective actions of the third retardation layer 2023 and the fourth retardation layer 2024 which are oppositely rotated, a part of the LED light emitting unit realizes polarized light of left-handed light, and the other part realizes polarized light of right-handed light, and simultaneously, under the actions of the first retardation layer 2021 and the second retardation layer 2022 which are different in retardation, left-handed circularly polarized light and right-handed circularly polarized light are also realized. Because the first phase difference layer 2021 and the second phase difference layer 2022 correspond to the gap 104 between the two adjacent LED pixel units 102, and the first phase difference layer 2021 and the second phase difference layer 2022 are adjacently distributed between the third phase difference layer 2023 and the fourth phase difference layer 2024, under the cooperation of the three-dimensional display film 200, one pair of glasses receives a polarized light, each pair of glasses only receives images with the same phase difference due to the effect of different phase differences, a part of the LED pixel unit 102 corresponding to the left eye transmits light, and the corresponding gap 104 transmits light due to the effect of the phase differences, thereby preventing crosstalk of light among the plurality of LED pixel units 102.
As shown in fig. 3, after the LED pixel units 102 pass through the polarizer 300, because the third phase difference layer 2023 and the fourth phase difference layer 2024 are respectively disposed corresponding to the adjacent LED pixel units 102, and the third phase difference layer 2023 and the fourth phase difference layer 2024 are phase difference layers with opposite rotation, a part of the LED lamp bead corresponding to the original polarized light is left-handed polarized light and a part thereof is right-handed polarized light, and the left and right glasses are left-handed circularly polarized light and right-handed circularly polarized light, respectively, the left eye can only see the optically-rotated circularly polarized light corresponding to the left eye lens, and the right eye can only see the optically-rotated circularly polarized light corresponding to the right eye lens.
Meanwhile, the slit 104 between two adjacent LED pixel units 102, the first phase difference layer 2021 and the second phase difference layer 2022 with opposite optical rotation corresponding to the position of the slit 104, under the action of left and right glasses, finally form a black-and-white picture as shown in fig. 3, so that the polarized light of two adjacent LED pixel units 102 is completely blocked, and finally, the left and right eyes can only see the polarized light with the left and right rotation separated from each other, thereby forming two three-dimensional parallaxes and forming good stereoscopic vision.
The second embodiment:
a three-dimensional LED stereoscopic display device comprises an LED light-emitting unit 100, a three-dimensional display film 200 and a polaroid 300, wherein the LED light-emitting unit 100 and the three-dimensional display film 200 are respectively fixedly arranged on two sides of the polaroid 300;
the LED light-emitting unit 100 comprises a driving unit 101, a plurality of LED pixel units 102 and a packaging layer 103, wherein the plurality of LED pixel units 102 are uniformly and fixedly distributed and electrically connected to the driving unit 101, gaps 104 with the same size are arranged between every two adjacent LED pixel units 102 and are sealed by the packaging layer 103, and the LED light-emitting unit 100 is fixedly arranged on one side of the polaroid 300 through the packaging layer 103;
the three-dimensional display film 200 comprises an adhesive layer 201, a phase difference layer 202 and an outer surface layer 203 which are fixed in sequence, the phase difference layer 202 comprises a first phase difference layer 2021, a second phase difference layer 2022, a third phase difference layer 2023 and a fourth phase difference layer 2024, and the three-dimensional display film 200 is fixedly adhered to one side of the polarizing plate 300 through the adhesive layer 201;
the third phase difference layer 2023 and the fourth phase difference layer 2024 are provided to correspond to the adjacent LED pixel unit 102, respectively, and the third phase difference layer 2023 and the fourth phase difference layer 2024 are phase difference layers that rotate oppositely.
The first phase difference layer 2021 and the second phase difference layer 2022 are disposed at positions corresponding to the slits 104, respectively.
Wherein the first retardation layer 2021 and the second retardation layer 2022 are retardation layers of opposite rotation.
The third retardation layer 2023 and the fourth retardation layer 2024 are each a retardation layer that is optically opposite to the first retardation layer 2021 and the second retardation layer 2022 adjacent thereto.
Wherein the first retardation layer 2021 is a right-handed retardation layer.
Wherein the second retardation layer 2022 is a levorotatory retardation layer.
Wherein the third retardation layer 2023 is a right-handed retardation layer.
The fourth retardation layer 2024 is a levorotatory retardation layer.
Wherein the thickness of the phase difference layer 202 is 35-40 μm.
The invention not only provides a comfortable three-dimensional LED three-dimensional display device, solves the problem of crosstalk of adjacent light-emitting units of LEDs, but also solves the problem of light leakage and bright lines between adjacent LED pixel units caused by three-dimensional LED assembly.
Various other changes and modifications to the above embodiments and concepts will become apparent to those skilled in the art, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (6)
1. A three-dimensional LED stereoscopic display device comprises an LED light-emitting unit (100), a three-dimensional display film (200) and a polaroid sheet (300), wherein the LED light-emitting unit (100) and the three-dimensional display film (200) are respectively fixedly arranged at two sides of the polaroid sheet (300), and the three-dimensional LED stereoscopic display device is characterized in that:
the LED light-emitting unit (100) comprises a driving unit (101), a plurality of LED pixel units (102) and a packaging layer (103), the LED pixel units (102) are uniformly and fixedly distributed and electrically connected to the driving unit (101), gaps (104) with the same size are arranged between every two adjacent LED pixel units (102) and are sealed through the packaging layer (103), and the LED light-emitting unit (100) is fixedly arranged on one side of the polaroid (300) through the packaging layer (103);
the three-dimensional display film (200) comprises an adhesive layer (201), a phase difference layer (202) and an outer surface layer (203) which are fixed in sequence, the phase difference layer (202) comprises a first phase difference layer (2021), a second phase difference layer (2022), a third phase difference layer (2023) and a fourth phase difference layer (2024), and the three-dimensional display film (200) is fixedly adhered to one side of the polaroid (300) through the adhesive layer (201);
the third phase difference layer (2023) and the fourth phase difference layer (2024) are respectively arranged corresponding to the adjacent LED pixel units (102), and the third phase difference layer (2023) and the fourth phase difference layer (2024) are phase difference layers with opposite optical rotation;
the first phase difference layer (2021) and the second phase difference layer (2022) are disposed at positions corresponding to the slits (104), respectively; the first phase difference layer (2021) and the second phase difference layer (2022) are phase difference layers that are oppositely optically active;
the third phase difference layer (2023) and the fourth phase difference layer (2024) are phase difference layers that are optically opposite to each other and are adjacent to the first phase difference layer (2021) and the second phase difference layer (2022), respectively.
2. The three-dimensional LED stereoscopic display device according to claim 1, wherein: the first phase difference layer (2021) is a left-handed optical phase difference layer.
3. The three-dimensional LED stereoscopic display device according to claim 1, wherein: the second phase difference layer (2022) is a right-handed optical phase difference layer.
4. The three-dimensional LED stereoscopic display device of claim 1, wherein: the third phase difference layer (2023) is a levorotatory optical phase difference layer.
5. The three-dimensional LED stereoscopic display device according to claim 1, wherein: the fourth retardation layer (2024) is a right-handed retardation layer.
6. The three-dimensional LED stereoscopic display device of claim 1, wherein: the thickness of the phase difference layer (202) is 35-40 μm.
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| CN114779490B (en) * | 2022-04-06 | 2023-11-10 | 宁波维真显示科技股份有限公司 | 3D-LED display module |
| CN115032809B (en) * | 2022-07-04 | 2023-08-08 | 杭州大昱光电科技有限公司 | Liquid crystal spliced large screen compatible with 2D and 3D display and large screen preparation method |
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