CN214752695U - LED module and display screen - Google Patents
LED module and display screen Download PDFInfo
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- CN214752695U CN214752695U CN202120142619.1U CN202120142619U CN214752695U CN 214752695 U CN214752695 U CN 214752695U CN 202120142619 U CN202120142619 U CN 202120142619U CN 214752695 U CN214752695 U CN 214752695U
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- 238000010586 diagram Methods 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model provides a LED module and display screen, the display screen includes the LED module, the LED module includes the base plate, LED luminescence unit, face guard and polarisation layer, one side of base plate is equipped with a plurality of LED luminescence unit, the net unit of LED luminescence unit is located including the cover to the face guard, the polarisation layer includes first circular polaroid, second circular polaroid and third polaroid, first circular polaroid and second circular polaroid are circular polaroid and polarization opposite direction, the third polaroid is reflective polaroid and plane of reflection orientation LED luminescence unit, the net unit is pasted and is equipped with the third polaroid, what the third polaroid deviates from LED luminescence unit side pastes alone with each net unit position department of correspondence and is equipped with first circular polaroid or second circular polaroid. The third polaroid adopts reflective polaroid in this scheme, and first circle polaroid and second circle polaroid can realize the function of circle polarisation, can realize that 3D shows and improve light-emitting efficiency, promote display effect.
Description
Technical Field
The utility model belongs to the technical field of the display device, especially, relate to a LED module and display screen.
Background
The LED module in the 3D display device generally comprises an LED light-emitting unit and a polarizing layer, the polarizing layer is arranged on the light-emitting side of the LED light-emitting unit, the light emitted by the LED light-emitting unit passes through the polarizing layer to obtain light in a specific polarization direction, and the left eye and the right eye of a viewer respectively view the light in different polarization directions, so that the three-dimensional effect can be viewed, however, in the related art, the LED module adopted by the 3D display device has low light-emitting efficiency and influences the display effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a LED module and display screen are provided, light-emitting efficiency can be improved to promote the display effect.
In order to solve the above technical problem, the utility model discloses a realize like this, a LED module, include: the LED light-emitting device comprises a substrate, LED light-emitting units, a face mask and a polarizing layer, wherein a plurality of LED light-emitting units are arranged on one side of the substrate, and the face mask comprises grid units which are sleeved outside the LED light-emitting units one by one; the polarizing layer comprises a first circular polarizing plate, a second circular polarizing plate and a third polarizing plate, the third polarizing plate is a reflective polarizing plate, the reflecting surface of the third polarizing plate faces the LED light-emitting unit, and the position, corresponding to each grid unit, of the side, away from the LED light-emitting unit, of the reflective polarizing plate is provided with the first circular polarizing plate or the second circular polarizing plate independently; the first circular polarizer and the second circular polarizer are circular polarizers and opposite in polarization direction, and light emitted by the LED light-emitting unit forms left-handed circularly polarized light through the first circular polarizer and forms right-handed circularly polarized light through the second circular polarizer.
Furthermore, the first circular polarizer and the second circular polarizer are attached to the reflective polarizer.
Furthermore, each first circular polarizer is at least adjacent to a second circular polarizer, and each second circular polarizer is at least adjacent to a first circular polarizer.
Further, the first circular polarizer and the second circular polarizer are alternately arranged in a first direction and a second direction, and the first direction is perpendicular to the second direction.
Further, the first circular polarizing plates are continuously arranged in a first direction, the second circular polarizing plates are continuously arranged in the first direction, and the first circular polarizing plates and the second circular polarizing plates are alternately arranged in a second direction.
Furthermore, the grid unit comprises a plurality of rows of the first circular polarizing plates and the second circular polarizing plates, the first circular polarizing plates or the second circular polarizing plates are attached to the positions, corresponding to the grid unit, of the same row of the third polarizing plates, and the first circular polarizing plates and the second circular polarizing plates are alternately arranged in the width direction.
Furthermore, the side of the grid unit far away from the substrate is provided with a flat supporting plane, and the third polarizer is attached to the supporting plane.
Further, the inner wall of the grid unit is a light reflecting surface.
Furthermore, the side of the substrate where the LED light-emitting unit is arranged is a light-reflecting surface.
Further, a display screen is provided, which comprises the LED module.
The utility model discloses well LED module and display screen compare with prior art, beneficial effect lies in:
the third polaroid adopts reflective polaroid in this scheme, and first circle polaroid and second circle polaroid can realize the function of circle polarisation, consequently, can improve luminous efficiency on the basis of realizing the 3D demonstration, promote display effect.
Drawings
Fig. 1 is a schematic structural diagram of an LED module according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the composition and arrangement of a polarizing layer in one form in an embodiment of the present invention.
In the drawings, each reference numeral denotes: 1. a substrate; 2. an LED light emitting unit; 3. a face mask; 31. a grid cell; 311. retaining walls; 312. a support edge; 4. a polarizing layer; 41. a first circular polarizer; 42. a second circular polarizer; 43. and a third polarizer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
in this embodiment, as shown in fig. 1-2, a display screen is provided, which includes an LED module, where the LED module includes a substrate 1, LED light-emitting units 2, a mask 3 and a polarizing layer 4, one side of the substrate 1 is provided with a plurality of LED light-emitting units 2, and the mask 3 includes grid units 31 respectively sleeved outside the LED light-emitting units 2; the polarizing layer 4 comprises a first circular polarizing sheet 41, a second circular polarizing sheet 42 and a third polarizing sheet 43, the third polarizing sheet (43) is a reflective polarizing sheet, the reflecting surface of the third polarizing sheet faces the LED light-emitting unit 2, and the first circular polarizing sheet 41 or the second circular polarizing sheet 42 is independently arranged at the position, corresponding to the position of each grid unit 31, of the third polarizing sheet 43, which is far away from the side of the LED light-emitting unit 2; the first circular polarizer 41 and the second circular polarizer 42 are circular polarizers and have opposite polarization directions, and the light emitted by the LED light emitting unit 2 passes through the first circular polarizer 41 to form left circularly polarized light and passes through the second circular polarizer 42 to form right circularly polarized light.
The grid unit 31 has a flat supporting plane on the side away from the substrate 1, the third polarizer 43 is attached to the supporting plane, and the first circular polarizer 41 and the second circular polarizer 42 are attached to the third polarizer 43. Each first circular polarizer 41 is at least adjacent to a second circular polarizer 42, and each second circular polarizer 42 is at least adjacent to a first circular polarizer 41. In some embodiments, the first circular polarizers 41 and the second circular polarizers 42 are alternately arranged in a first direction and a second direction, the first direction is perpendicular to the second direction, that is, the first circular polarizers 41 and the second circular polarizers 42 are in a grid shape corresponding to the LED light-emitting unit 2, the first circular polarizers 41 and the second circular polarizers 42 may be rectangular or square, the four sides of each first circular polarizer 41 are the second circular polarizers 42, and the four sides of each second circular polarizer 42 are the first circular polarizers 41; in some embodiments, the first circular polarizers 41 are continuously arranged in the first direction, the second circular polarizers 42 are continuously arranged in the first direction, and the first circular polarizers 41 and the second circular polarizers 42 are alternately arranged in the second direction.
The grid unit 31 includes a plurality of rows, specifically, a rectangular array arrangement, the first circular polarizer 41 and the second circular polarizer 42 are both in a strip shape, the first circular polarizer 41 or the second circular polarizer 42 is attached to the corresponding position of the third polarizer 43 with the same row of grid unit 31, and the first circular polarizer 41 and the second circular polarizer 42 are alternately arranged in the width direction. That is, the first circular polarizer 41 and the second circular polarizer 42 are both of a strip structure, the first circular polarizer 41 and the second circular polarizer 42 may both extend in the vertical direction, the first circular polarizer 41 and the second circular polarizer 42 may be alternately arranged in the transverse direction, and when the first circular polarizer 41 and the second circular polarizer 42 both extend in the transverse direction, the first circular polarizer 41 and the second circular polarizer 42 may be alternately arranged in the vertical direction.
The inner wall of the grid unit 31 and/or the side of the substrate 1 where the LED light emitting unit 2 is disposed is a light reflecting surface. Specifically, the grid unit 31 may be made of a light-reflecting material, such as an aluminum alloy, a titanium alloy, and the like, the inner wall of the grid unit 31 is a smooth surface, the inner wall of the grid unit 31 may also be coated with a light-reflecting film or painted with a reflective paint, and the substrate 1 may also be coated with a light-reflecting film or painted with a reflective paint, and the like. Because the third polarizer 43 is a reflective polarizer, the light emitted by the LED light-emitting unit 2 is reflected by the third polarizer 43 and then reflected by the grid unit 31 or the reflective surface of the substrate 1, so as to improve the utilization rate of the light, further improve the light efficiency, and improve the display effect.
Each retaining wall 311 is provided separately or integrally formed. Specifically, when the LED units are arranged in a split manner, each LED light-emitting unit 2 corresponds to one single retaining wall 311, each LED light-emitting unit 2 is sleeved with one retaining wall 311 when being assembled, and the retaining walls 311 corresponding to the adjacent LED light-emitting units 2 are adjacent; when the retaining walls 311 are integrally formed, the adjacent retaining walls 311 are connected into a whole, and when the method is adopted, the face cover 3 is a whole, so long as the face cover 3 and the substrate 1 are positioned, the retaining walls 311 are sleeved on the outer sides of the corresponding LED light-emitting units 2, the position accuracy is ensured, the assembling is more convenient and faster, and the assembling efficiency is improved.
In this embodiment, the edge of the retaining wall 311 away from the substrate 1 extends inward to form a supporting edge 312, the supporting edge 312 of the same grid unit 31 forms a ring structure, and the third polarizer 43 may be attached to the supporting edge 312 by an optical adhesive bonding method, so that the attachment is stable. Specifically, in the present application, the retaining wall 311 is a square ring structure, and correspondingly, the supporting edge 312 is also a square ring structure and extends inward; in some embodiments, the retaining wall 311 may be a rectangular ring structure and the supporting edge 312 may be a rectangular ring structure, and correspondingly, the retaining wall 311 may be a circular ring structure and the supporting edge 312 may be a circular ring structure, and correspondingly, the supporting edge 312 is a circular ring structure, and the supporting edge 312 is disposed coaxially with the retaining wall 311 according to the actual shape of the first circular polarizer 41 and the second circular polarizer 42. The shape of the retaining wall 311 and the shape of the supporting edge 312 can be adaptively set according to practical situations, and are not limited herein.
The retaining wall 311 and the supporting edge 312 may be separately arranged or integrally connected. Specifically, when the retaining wall 311 and the supporting edge 312 are separately arranged, that is, the retaining wall 311 and the supporting edge 312 are separate structures, the method is divided into various cases, for example: 1. all the retaining walls 311 are connected into a whole, all the supporting edges 312 are connected into a whole and correspond to the positions of the retaining walls 311 one by one, the supporting edges 312 are covered on the side, far away from the base plate 1, of the retaining wall 311 and positioned during assembly, so that the corresponding relation between all the supporting edges 312 and the retaining walls 311 can be ensured, the assembly is convenient and rapid, 2, all the retaining walls 311 are of independent structures, all the supporting edges 312 are of independent structures, at the moment, the supporting edges 312 are required to be assembled with the retaining walls 311 one by one, 3, all the retaining walls 311 are of independent structures, all the supporting edges 312 are connected into a whole, the retaining walls 311 are assembled with the base plate 1 firstly, and then the supporting edges 312 are assembled with the base plate 1, so that the supporting edges 312 correspond to the retaining walls 311; when the retaining wall 311 and the supporting edge 312 are integrally connected, the retaining wall 311 and the supporting edge 312 may be integrally formed as a whole by referring to the arrangement manner of the grid unit 31 which is separately arranged or integrally connected.
In this scheme, the wall of the retaining wall 311 is a reflective surface, and the retaining wall 311 can block the illumination emitted by the LED light-emitting unit 2 from the adjacent LED light-emitting unit 2, so that the mutual interference of the emitted light between the adjacent LED light-emitting units 2 can be prevented, and the display effect can be ensured.
The inner wall of the retaining wall 311 may be provided with reinforcing ribs connected to the supporting rim 312. Specifically, the reinforcing ribs may be disposed at intervals along the opening edge of the retaining wall 311 near the supporting edge 312, and the reinforcing ribs are perpendicular to the inner wall of the retaining wall 311, preferably, the reinforcing ribs are disposed at intervals, and may be triangular, when the retaining wall 311 and the supporting edge 312 are disposed separately, the reinforcing ribs abut against the inner side of the supporting edge 312, and when the retaining wall 311 and the supporting edge 312 are disposed integrally, the reinforcing ribs and the supporting edge 312 are connected into a whole.
In this embodiment, an injection mold is further provided for forming the mask 3, the injection mold includes a first mold plate and a second mold plate, a mold cavity is formed when the first mold plate and the second mold plate are closed, the mold cavity includes a first cavity channel and a second cavity channel, the first cavity channel is matched with the retaining wall 311, and the second cavity channel is communicated with the first cavity channel and matched with the supporting edge 312. Through above-mentioned injection mold, the first chamber way can form barricade 311 during moulding plastics, and the second chamber way can form and support along 312 to can process out face guard 3, process face guard 3 through the injection moulding mode and can improve machining efficiency, reduce the processing cost.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An LED module, comprising: the LED light-emitting device comprises a substrate (1), LED light-emitting units (2), a face mask (3) and a polarizing layer (4), wherein a plurality of LED light-emitting units (2) are arranged on one side of the substrate (1), and the face mask (3) comprises grid units (31) which are sleeved outside the LED light-emitting units (2) one by one;
the polarizing layer (4) comprises a first circular polarizing plate (41), a second circular polarizing plate (42) and a third polarizing plate (43), the third polarizing plate (43) is a reflective polarizing plate, the reflective surface of the third polarizing plate faces the LED light-emitting unit (2), and the first circular polarizing plate (41) or the second circular polarizing plate (42) is independently arranged at the position, corresponding to each grid unit (31), of the side, away from the LED light-emitting unit (2), of the third polarizing plate (43);
first circular polarizer (41) with second circular polarizer (42) are circular polarizer and polarization direction is opposite, the light that LED luminescence unit (2) sent forms levogyration circular polarized light through first circular polarizer (41), forms dextrorotation circular polarized light through second circular polarizer (42).
2. The LED module according to claim 1, wherein the first circular polarizer (41) and the second circular polarizer (42) are attached to the third polarizer (43).
3. The LED module according to claim 1, wherein each of the first circular polarizers (41) is adjacent to at least one second circular polarizer (42), and each of the second circular polarizers (42) is adjacent to at least one first circular polarizer (41).
4. The LED module according to claim 2, wherein the first and second circular polarizers (41, 42) are arranged alternately in both a first direction and a second direction, the first direction being perpendicular to the second direction.
5. The LED module according to claim 1, wherein the first circular polarizer (41) is continuously arranged in a first direction, the second circular polarizer (42) is continuously arranged in the first direction, and the first circular polarizer (41) and the second circular polarizer (42) are alternately arranged in a second direction.
6. The LED module according to claim 1, wherein the grid cells (31) comprise a plurality of rows, the first circular polarizer (41) and the second circular polarizer (42) are both strip-shaped, the first circular polarizer (41) or the second circular polarizer (42) is attached to the third polarizer (43) at a position corresponding to the grid cells (31) in the same row, and the first circular polarizer (41) and the second circular polarizer (42) are alternately arranged in the width direction.
7. The LED module according to claim 1, wherein the grid unit (31) has a flat support plane on the side facing away from the substrate (1), and the third polarizer (43) is attached to the support plane.
8. The LED module according to any of claims 1-7, wherein the inner wall of the grid cell (31) is a reflective surface.
9. The LED module according to any of claims 1-7, wherein the side of the substrate (1) on which the LED light-emitting units (2) are disposed is a light-reflecting surface.
10. A display screen, characterized in that it comprises an LED module according to any one of claims 1 to 9.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120142619.1U CN214752695U (en) | 2021-01-19 | 2021-01-19 | LED module and display screen |
| EP22742189.8A EP4283381A1 (en) | 2021-01-19 | 2022-01-19 | Mask, led module and display screen |
| KR1020237025890A KR20230127300A (en) | 2021-01-19 | 2022-01-19 | Mask and LED module |
| PCT/CN2022/072750 WO2022156710A1 (en) | 2021-01-19 | 2022-01-19 | Mask, led module and display screen |
| US18/223,538 US20230359060A1 (en) | 2021-01-19 | 2023-07-18 | Mask and led module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120142619.1U CN214752695U (en) | 2021-01-19 | 2021-01-19 | LED module and display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214752695U true CN214752695U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120142619.1U Active CN214752695U (en) | 2021-01-19 | 2021-01-19 | LED module and display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214752695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156710A1 (en) * | 2021-01-19 | 2022-07-28 | 深圳市时代华影科技股份有限公司 | Mask, led module and display screen |
-
2021
- 2021-01-19 CN CN202120142619.1U patent/CN214752695U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022156710A1 (en) * | 2021-01-19 | 2022-07-28 | 深圳市时代华影科技股份有限公司 | Mask, led module and display screen |
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