CN211454011U - Optical diffusion plate and display panel - Google Patents
Optical diffusion plate and display panel Download PDFInfo
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- CN211454011U CN211454011U CN202020357255.4U CN202020357255U CN211454011U CN 211454011 U CN211454011 U CN 211454011U CN 202020357255 U CN202020357255 U CN 202020357255U CN 211454011 U CN211454011 U CN 211454011U
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Abstract
The utility model provides an optical diffusion plate and a display panel, which relate to the technical field of display and comprise a structure layer and a support layer, wherein the structure layer is attached to the support layer and comprises a first structure layer and a second structure layer, and the support layer is positioned between the first structure layer and the second structure layer; a plurality of bulges are arranged on the surface of the first structural layer and/or the second structural layer, and the bulges are suitable for diffusing light rays. Optics diffuser plate and display panel, protruding structure through first structural layer, for example specifically four prismatic table structures, four pyramid structure, hemisphere structure, three prismatic table structures, three prismatic cone structures, cone structure or circular cone platform structure to and the particle structure of second structural layer, make light pass through by better refraction, reflection, increased the even diffusion effect of light, and make the picture luminance of display panel higher, luminance improves more than 5%, and it is better to show the picture homogeneity.
Description
Technical Field
The utility model relates to a show technical field, particularly, relate to an optics diffuser plate and display panel.
Background
Along with the development of social science and technology, the improvement of people's standard of living, people also more and more high to computer, TV and outdoor large-scale display device picture performance requirement, and the high definition degree of picture display is also more and more high, and is also more and more high to the bright and dark homogeneity of display picture, because the diffuser plate of ordinary structure is poor to display light source light diffusion and blast effect, has leaded to the display to show the uneven phenomenon of bright and dark of picture to appear, is difficult to satisfy people's demand to high quality optics diffuser plate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem, current optics diffuser plate is poor to display light source light diffusion and blast effect, has leaded to the uneven phenomenon of bright dark to appear in display screen, is difficult to satisfy the demand of people to high quality optics diffuser plate.
In order to solve the above problems, the present invention provides an optical diffuser plate, including a structure layer and a support layer, wherein the structure layer is attached to the support layer, the structure layer includes a first structure layer and a second structure layer, and the support layer is located between the first structure layer and the second structure layer;
a plurality of bulges are arranged on the surface of the first structural layer and/or the second structural layer, and the bulges are suitable for diffusing light rays.
Optical diffuser plate, compare with prior art, protruding structure through first structural layer and/or second structural layer, for example four prismatic table structures, four pyramid structure, hemisphere structure, three prismatic table structures, three prismatic cone structures, cone structure, circular cone platform structure or particle structure for by better refraction, reflection when light passes through, increased the even diffusion effect of light, and make the picture luminance of display panel higher, luminance improves more than 5%, it is better to show the picture homogeneity.
Optionally, the raised structure comprises at least one of a quadrangular frustum structure, a quadrangular pyramid structure, a hemispherical structure, a triangular frustum structure, a triangular pyramid structure, a conical frustum structure, and a particulate structure.
Optionally, the optical diffusion plate has a thickness in a range of 500 to 3000 micrometers, the structural layer has a thickness in a range of 50 to 500 micrometers, and the structural layer has a thickness equal to a sum of thicknesses of the first structural layer and the second structural layer.
Optionally, the first structural layer comprises a plurality of said protrusions of the same structure or a plurality of said protrusions of a plurality of structural combinations, and/or the second structural layer comprises a plurality of said protrusions of the same structure or a plurality of said protrusions of a plurality of structural combinations.
Optionally, characterized in that the protrusion height of the quadrangular frustum structure, the quadrangular pyramid structure, the triangular frustum structure, the triangular pyramid structure, the cone structure or the truncated cone structure is in the range of 10 to 200 μm.
Optionally, the protrusions of the square pyramid structure, the triangular pyramid structure, the cone structure or the cone frustum structure are arranged at intervals or continuously, and when the protrusions are arranged at intervals, the distance between the bottom surfaces of two adjacent protrusions is in the range of 1 to 10000 micrometers.
Optionally, the protruding top and bottom surfaces of the quadrangular frustum structure have side lengths in the range of 50 to 500 micrometers, and the side length of the top surface is smaller than that of the bottom surface;
the side length of the convex side edge of the rectangular pyramid structure is in the range of 50-500 micrometers;
the side lengths of the top surface and the bottom surface of the protrusion of the triangular frustum structure are both in the range of 50-500 micrometers, and the side length of the top surface is smaller than that of the bottom surface;
the side length of the convex side of the triangular pyramid structure is in the range of 50-500 micrometers;
the diameters of the top surface and the bottom surface of the bulge of the truncated cone structure are both in the range of 50-500 micrometers, and the diameter of the top surface is smaller than that of the bottom surface;
the diameter of the bottom surface of the protrusions of the cone structure is in the range of 50 to 500 micrometers.
Optionally, the protrusion diameter of the hemispherical structure is in the range of 50 to 500 microns.
Optionally, the protrusions are particles formed by sanding the first structural layer and/or the second structural layer, and the particle size of the particles is between 1 and 50 micrometers.
The utility model also provides a display panel, including above-mentioned arbitrary optics diffuser plate.
The display panel, carry on the aforesaid optics expand the diffuser plate, light is by better refraction, reflection when passing through, has increased the even diffusion of light to make the picture luminance of display panel higher, luminance improves more than 5%, and the display screen homogeneity is better.
Drawings
Fig. 1 is a schematic side view of a rectangular frustum structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a rectangular frustum of an optical diffuser plate according to an embodiment of the present invention;
fig. 3 is a schematic side view of a rectangular pyramid structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 4 is a schematic view of a rectangular pyramid structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 5 is a schematic side view of an optical diffuser plate triangular platform structure according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an optical diffuser plate triangular frustum according to an embodiment of the present invention;
fig. 7 is a schematic side view of an optical diffuser plate triangular pyramid structure according to an embodiment of the present invention;
fig. 8 is a schematic view of a triangular pyramid structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 9 is a schematic side view of a truncated cone structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 10 is a schematic structural view of an optical diffuser plate frustum according to an embodiment of the present invention;
FIG. 11 is a schematic side view of a cone structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 12 is a schematic structural view of a cone of an optical diffuser plate according to an embodiment of the present invention;
fig. 13 is a schematic side view of a hemisphere structure of an optical diffuser plate according to an embodiment of the present invention;
fig. 14 is a schematic view of a hemisphere structure of an optical diffuser plate according to an embodiment of the present invention.
Description of reference numerals:
1-structural layer; 11-a first structural layer; 111-bumps; 12-a second structural layer; 2-a support layer.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it should be noted that terms such as "upper", "lower", "front", "rear", and the like in the embodiments indicate terms of orientation, and are only used for simplifying the description of positional relationships based on the drawings of the specification, and do not represent that the elements, devices, and the like indicated in the description must be operated according to specific orientations and defined operations and methods, configurations, and such terms of orientation do not constitute limitations of the present invention.
In addition, the terms "first" and "second" mentioned in the embodiments of the present invention are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
In this embodiment, an optical diffuser plate is provided, which is shown in fig. 1, and includes a structure layer 1 and a support layer 2, where the structure layer 1 is attached to the support layer 2, the structure layer 1 includes a first structure layer 11 and a second structure layer 12, and the support layer 2 is located between the first structure layer 11 and the second structure layer 12; the first structural layer 1 and/or the second structural layer 12 are provided with a plurality of protrusions 111 on the surface, and specifically, the protrusions 111 can effectively diffuse light passing through the surface.
The optical diffusion plate of the embodiment is a composite integrated structure, wherein the first structural layer 11 and the second structural layer 12 are formed by hot pressing at a high temperature by using a mold, and the thickness of the optical diffusion plate is in a range of 500 to 3000 micrometers, preferably in a range of 1000 to 2000 micrometers; the thickness of the structural layer 1 is in the range of 50 to 500 micrometers, preferably in the range of 50 to 200 micrometers, and the thickness of the structural layer 1 is the sum of the thicknesses of the first structural layer 11 and the second structural layer 12. Because the thickness of the structural layer 1 is in micron order, the thickness of the supporting layer 2 is greater than that of the structural layer 1, and the structural strength of the optical diffusion plate is ensured.
The first structure layer 11 and the second structure layer 12 have different shapes, influence the deflection route of light passing through the optical diffuser plate, and increase the probability of light vertically emitting out of the diffuser plate to achieve the purpose of brightness enhancement, wherein a diffusion material can be added to improve the light refraction and reflection effects, so that the performance of the diffuser plate is improved, the thickness is less than 500 micrometers, the thickness of the support layer 2 is greater than 800 micrometers, and the diffusion material can be added to play an important role in the physical strength and stiffness of the diffuser plate, and also play a role in light diffusion. The first structure layer 11, the support layer 2 and the second structure layer 12 are mainly made of one or more of PS polystyrene, PMMA polymethyl methacrylate, PC polycarbonate, PET polyethylene terephthalate, PP (polypropylene) and MS (methyl methacrylate and styrene copolymer), and may further contain functional additives such as a toughening agent, a diffusing agent, an organic silicon light diffusing agent, an antioxidant and an anti-ultraviolet additive.
As shown in fig. 1 to 14, a plurality of protrusions 111 are disposed on the first structural layer 11, and a structure of a single protrusion 111 is at least one of a quadrangular frustum structure, a quadrangular pyramid structure, a hemispherical structure, a triangular frustum structure, a triangular pyramid structure, a conical frustum structure, and a microparticle structure. Wherein the particle structure protruding 111 does first structural layer 11 and/or second structural layer 12 forms through the dull polish, with four prismatic table structures, four pyramid structures, hemisphere structure, three prismatic table structures, three prismatic cone structures, cone structure, circular cone structure for the form side by side, after the concrete embodiment is handled for the structural layer through the dull polish technology, there are a large amount of anomalous protruding structures in the surface, these protruding structures are all similar to the particle owing to the size is comparatively tiny (the micron order), or the particle structure arch of preparing out similar dull polish through other technologies also belongs to the utility model discloses to the restriction of particle structure protruding 111. Better, when the light emitted from the backlight passes through the optical diffusion plate of the protrusion 111, the light is more fully reflected and refracted, so that the uniform diffusion effect of the light is increased, the picture brightness of the display device is higher, the brightness is improved by 5%, and the uniformity is better.
Preferably, the protrusions 111 may be disposed on the surfaces of the first structural layer 11 and the second structural layer 12, or alternatively, the protrusions 111 may be disposed, in this embodiment, the protrusions 111 particles are disposed on the surfaces of the first structural layer 11 and the second structural layer 12. Specifically, a plurality of protrusions 111 with non-particle structures are arranged on the first structural layer 11, a plurality of protrusions 111 are arranged on the outer surface of the first structural layer 1 facing away from the supporting layer 2 at intervals or continuously, the protrusions 111 can be integrally formed with or fixedly connected to the first structural layer 11, and a single structural layer 11 includes a plurality of protrusions 111 with the same structure or a plurality of protrusions 111 combined with a plurality of structures. The protrusions 111 shown in fig. 1-14 are arranged in a continuous manner, the minimum distance between two adjacent protrusions 111 is in contact, the interval arrangement means that the protrusions 111 are not in contact, and the specific interval distance and arrangement can be set according to specific requirements. Preferably, when the protrusions 111 are arranged at intervals, the distance between the bottom surfaces of two adjacent protrusions 111 is in the range of 1 to 10000 micrometers, preferably 1 to 2000 micrometers. It should be noted that the bottom surface pitch described in the present embodiment refers to the minimum distance between the bottom surfaces of the adjacent protrusions 111.
Specifically, the height of the protrusions 111 of the square pyramid structure, the triangular pyramid structure, the cone structure or the cone frustum structure according to the present embodiment is in a range of 10 to 200 micrometers, and preferably in a range of 50 to 100 micrometers.
Alternatively, when the protrusion 111 has a quadrangular frustum pyramid structure, as shown in fig. 1-2, for example, two parallel surfaces of the quadrangular frustum pyramid are placed up and down, the area of the parallel surface located below is larger than that of the parallel surface located above, the bottom surface of the protrusion 111 is a parallel surface with a larger area located below, the top surface of the protrusion 111 is a parallel surface with a smaller area located above, the side surfaces of the protrusion 111 are four laterally inclined planes, and the height of the protrusion 111 refers to the shortest distance between the top surface and the bottom surface. Preferably, the side lengths of the top surface and the bottom surface of the protrusion 111 of the quadrangular frustum pyramid structure are both in the range of 50 to 500 micrometers, and the side length of the top surface is smaller than that of the bottom surface.
Alternatively, when the protrusion 111 has a rectangular pyramid structure, as shown in fig. 3-4, according to the square pyramid placement example, the side surfaces of the protrusion 111 are four planes inclined laterally, the top of the four side surfaces of the rectangular pyramid is upward, the bottom surface of the protrusion 111 is a plane located below, and the height of the protrusion 111 refers to the shortest distance between the top point and the bottom surface. Preferably, the side edges of the protrusions 111 of the rectangular pyramid structure are in the range of 50 to 500 micrometers.
Alternatively, when the protrusion 111 has a triangular-truncated-cone structure, as shown in fig. 5-6, for example, two parallel surfaces of the triangular-truncated-cone structure are placed up and down, the area of the parallel surface located below is larger than that of the parallel surface located above, the bottom surface of the protrusion 111 is a parallel surface with a larger area located below, the top surface of the protrusion 111 is a parallel surface with a smaller area located above, the side surfaces of the protrusion 111 are four laterally inclined planes, and the height of the protrusion 111 refers to the shortest distance between the top surface and the bottom surface. Preferably, the side lengths of the top surface and the bottom surface of the protrusion 111 of the triangular frustum structure are both in the range of 50 to 500 micrometers, and the side length of the top surface is smaller than that of the bottom surface.
Alternatively, when the protrusion 111 has a triangular pyramid structure, as shown in fig. 7 to 8, according to an example of a right side of the triangular pyramid, the side surfaces of the protrusion 111 are three planes inclined laterally, the tip of the three side surfaces of the triangular pyramid is upward, the bottom surface of the protrusion 111 is a plane located below, and the height of the protrusion 111 refers to the shortest distance between the tip and the bottom surface. Preferably, the side edge of the protrusion 111 of the triangular pyramid structure has a length in a range of 50 to 500 micrometers.
Alternatively, when the protrusion 111 has a truncated cone structure, as shown in fig. 9-10, for example, two parallel circular surfaces of the truncated cone are placed on top of each other, the area of the parallel circular surface located below is larger than that of the parallel circular surface located above, the bottom surface of the protrusion 111 is a parallel circular surface with a larger area located below, the top surface of the protrusion 111 is a parallel circular surface with a smaller area located above, the side surface of the protrusion 111 is an arc surface on the side, and the height of the protrusion 111 refers to the shortest distance between the top surface and the bottom surface. Preferably, the top surface and the bottom surface of the protrusion 111 of the truncated cone structure have diameters in the range of 50 to 500 μm, and the diameter of the top surface is smaller than that of the bottom surface.
Alternatively, when the protrusion 111 has a cone structure, as shown in fig. 11-12, according to the case of a right circular cone, the side surface of the protrusion 111 is a side arc surface, the tip of the cone faces upward, the bottom surface of the protrusion 111 is a plane located below, and the height of the protrusion 111 refers to the shortest distance between the tip and the bottom surface. Preferably, the protrusions 111 of the cone structure have a side edge length in the range of 50 to 500 microns.
Alternatively, when the protrusion 111 is a hemisphere, as shown in fig. 13-14, for example, according to the case that the parallel surface of the hemisphere faces downward, the bottom surface of the protrusion 111 is a plane located below, the side surface of the protrusion 111 is a hemispherical arc surface, the height of the protrusion 111 refers to the distance from the side surface to the bottom surface, the height of the protrusion 111 is the same as the radius of the hemisphere, and the diameter of the protrusion 111 of the hemisphere is in the range of 50 to 500 micrometers, preferably 100 to 300 micrometers.
Optionally, the particle size of the particles is between 1 and 50 microns when the second structure layer 12 is provided with protrusions 111 of a particle structure towards the outer surface of the side of the support layer 2; preferably in the range of 1 to 20 microns. The particle size of the particles refers to the average particle size D50 of all particles of different sizes in a single second structural layer 12.
On the basis of the above embodiments, the present embodiment also provides a display panel including the optical diffuser plate according to any one of the above embodiments.
Specifically, the display panel further comprises a liquid crystal panel and a light source, wherein the optical diffusion plate is arranged between the liquid crystal panel and the light source, and the light source comprises light source assemblies in a direct type backlight source mode and a side type backlight source mode.
The display panel of the embodiment carries the optical diffusion plate, so that light is better refracted and reflected when passing through, the uniform diffusion effect of light is increased, the picture brightness of the display panel is higher, the brightness is improved by more than 5%, and the uniformity of a displayed picture is better.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. An optical diffusion plate is characterized by comprising a structural layer (1) and a supporting layer (2), wherein the structural layer (1) is attached to the supporting layer (2), the structural layer (1) comprises a first structural layer (11) and a second structural layer (12), and the supporting layer (2) is positioned between the first structural layer (11) and the second structural layer (12);
the surface of the first structural layer (11) and/or the second structural layer (12) is provided with a plurality of protrusions (111), and the protrusions (111) are suitable for diffusing light.
2. The optical diffuser plate according to claim 1, wherein the structure of the protrusions (111) comprises at least one of a quadrangular frustum structure, a quadrangular pyramid structure, a hemispherical structure, a triangular frustum structure, a triangular pyramid structure, a conical structure, a truncated conical structure, and a fine particle structure.
3. The optical diffuser plate as claimed in claim 1, wherein the thickness of the optical diffuser plate is in the range of 500 to 3000 microns, the thickness of the structural layer (1) is in the range of 50 to 500 microns, and the thickness of the structural layer (1) is the sum of the thicknesses of the first structural layer (11) and the second structural layer (12).
4. An optical diffuser plate as claimed in claim 2, wherein said first structural layer (11) comprises a plurality of said protrusions (111) of the same structure or a plurality of said protrusions (111) of a plurality of structure combinations, and/or said second structural layer (12) comprises a plurality of said protrusions (111) of the same structure or a plurality of said protrusions (111) of a plurality of structure combinations.
5. The optical diffuser plate as set forth in claim 2, wherein the height of the protrusions (111) of the quadrangular frustum structure, the quadrangular pyramid structure, the triangular frustum structure, the triangular pyramid structure, the cone structure or the truncated cone structure is in the range of 10 to 200 μm.
6. The optical diffuser plate according to claim 2, wherein a plurality of said protrusions (111) having a truncated quadrangular pyramid structure, a truncated triangular pyramid structure, a cone structure or a truncated cone structure are arranged at intervals or continuously, and when a plurality of said protrusions (111) are arranged at intervals, a distance between bottom surfaces of two adjacent protrusions (111) is in a range of 1 to 10000 μm.
7. The optical diffuser plate as set forth in claim 2, wherein the top and bottom surfaces of the protrusions (111) of the quadrangular frustum structure each have a side length in the range of 50 to 500 μm, the side length of the top surface being smaller than that of the bottom surface;
the side edges of the protrusions (111) of the rectangular pyramid structure are in the range of 50-500 micrometers;
the side lengths of the top surface and the bottom surface of the protrusion (111) of the triangular frustum structure are both in the range of 50-500 micrometers, and the side length of the top surface is smaller than that of the bottom surface;
the side edge length of the protrusion (111) of the triangular pyramid structure is in the range of 50-500 micrometers;
the diameters of the top surface and the bottom surface of the bulge (111) of the truncated cone structure are both in the range of 50-500 micrometers, and the diameter of the top surface is smaller than that of the bottom surface;
the diameter of the base of said protrusions (111) of the cone structure is in the range of 50 to 500 microns.
8. The optical diffuser plate as set forth in claim 4, wherein the diameter of the protrusions (111) of the hemispherical structure is in the range of 50 to 500 μm.
9. The optical diffuser plate as set forth in claim 2, wherein the protrusions (111) of the particle structure are formed by sanding the first structural layer (11) and/or the second structural layer (12), and the particle diameter of the particles is between 1 and 50 μm.
10. A display panel comprising the optical diffuser plate according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020357255.4U CN211454011U (en) | 2020-03-20 | 2020-03-20 | Optical diffusion plate and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020357255.4U CN211454011U (en) | 2020-03-20 | 2020-03-20 | Optical diffusion plate and display panel |
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| CN211454011U true CN211454011U (en) | 2020-09-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116430622A (en) * | 2023-04-26 | 2023-07-14 | 富盛光电（吴江）有限公司 | Light diffusion plate and direct type backlight module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116430622A (en) * | 2023-04-26 | 2023-07-14 | 富盛光电（吴江）有限公司 | Light diffusion plate and direct type backlight module |
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