CN216485607U - Secondary compensation device for backlight subjective lighting effect - Google Patents
Secondary compensation device for backlight subjective lighting effect Download PDFInfo
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- CN216485607U CN216485607U CN202122973600.4U CN202122973600U CN216485607U CN 216485607 U CN216485607 U CN 216485607U CN 202122973600 U CN202122973600 U CN 202122973600U CN 216485607 U CN216485607 U CN 216485607U
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- diffusion plate
- secondary compensation
- backlight
- subjective
- compensation device
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Abstract
The utility model discloses a secondary compensation device for backlight subjective lighting effect, which comprises a composite diffusion plate; the first diffusion plate of the composite diffusion plate is arranged on the top surface of the second diffusion plate, and the light incident surface of the first diffusion plate is provided with micro protrusions and grooves; the side of the secondary compensation mesh point of the second diffusion plate is provided with a first basic layer, the first basic layer is provided with a base body, the base body is provided with a second basic layer, and the first diffusion plate is located on the second basic layer. The grooves are arranged at equal intervals, the micro protrusions are of a triangular structure, and the grooves are of a V-shaped structure. Concave-convex surfaces are respectively arranged on two sides of the base body, which are respectively connected with the first base layer and the second base layer. One side of the composite diffusion plate close to the PCB is provided with a secondary compensation mesh point; the utility model has good diffusion effect on light and improves the uniformity of the light scattering of the light source after passing through the second diffusion plate.
Description
Technical Field
The utility model relates to the technical field of light sources, in particular to a secondary compensation device for backlight subjective light effect.
Background
Chinese patent CN102798908B discloses a diffusion plate, which comprises a base, wherein the upper surface of the base is recessed downward to form at least one first concave surface, a first base layer is attached to the upper surface of the base, and a first scattering particle film layer is attached to the upper surface of the first base layer; the lower surface of the base body is upwards concavely arranged to form at least one second concave surface, a second base layer is attached to the lower surface of the base body, and a second scattering particle film layer is attached to the lower surface of the second base layer. The diffusion plate provided by the utility model is provided with a first scattering particle film layer and a second scattering particle film layer, and is also provided with a second concave surface and a first concave surface which are arranged on the base body to scatter light emitted by a light source, so that the uniformity of scattering of light rays of the light source after passing through the diffusion plate is improved.
The existing diffusion plate has no good diffusion effect on light and cannot well improve the uniformity of light scattering; and the problem that the backlight subjective effect is difficult to adjust to a perfect state by adding silk-screen dots to a PCB light bar and matching lenses is solved.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solve the above problems of the prior art, and provides a backlight subjective light effect secondary compensation device.
The purpose of the utility model can be realized by the following technical scheme:
a secondary compensation device for backlight subjective lighting effect comprises a composite diffusion plate; the first diffusion plate of the composite diffusion plate is arranged on the top surface of the second diffusion plate, and the light incident surface of the first diffusion plate is provided with micro protrusions and grooves; the side of the secondary compensation mesh point of the second diffusion plate is provided with a first basic layer, the first basic layer is provided with a base body, the base body is provided with a second basic layer, and the first diffusion plate is located on the second basic layer.
As a further scheme of the utility model: the grooves are arranged at equal intervals, the micro protrusions are of a triangular structure, and the grooves are of a V-shaped structure.
As a further scheme of the utility model: the side surfaces of the base body connected with the first base layer and the second base layer are respectively provided with a concave-convex surface.
As a further scheme of the utility model: one side of the composite diffusion plate close to the PCB is provided with a secondary compensation mesh point.
As a further scheme of the utility model: a lens is fixedly arranged on one side of the PCB; and an LED light source is arranged between the lens and the PCB.
As a further scheme of the utility model: and the secondary compensation mesh points are arranged in a non-uniform mode.
As a further scheme of the utility model: and silk-screen printing points are arranged at the superposition position of the lens and the PCB.
As a further scheme of the utility model: the secondary compensation mesh points are positioned on the side surface of the scattering particle film layer.
The utility model has the beneficial effects that:
(1) according to the utility model, most of light paths can be adjusted through secondary compensation mesh point dimming on the composite diffusion plate, the effect is obvious, and the mesh point density and size can be changed to realize local dimming, so that light rays are better presented;
(2) according to the utility model, through the first diffusion plate with the micro bulges and the grooves and the second diffusion plate consisting of the scattering particle film layer, the first base layer, the matrix and the second base layer, the light can be well diffused, and the uniformity of scattering of light rays of a light source after passing through the second diffusion plate is improved.
Drawings
The utility model will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the composite diffuser plate according to the present invention.
In the figure: 1. compounding a diffusion plate; 2. secondary compensation mesh points; 3. a lens; 4. an LED light source; 5. silk-screen printing points; 6. a PCB board; 7. a scattering particle film layer; 8. a first base layer; 9. a substrate; 10. a second base layer; 11. a first diffusion plate; 12. a micro-protrusion; 13. a groove; 14. a second diffuser plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention is a backlight subjective lighting effect secondary compensation device, which comprises a composite diffusion plate 1, secondary compensation dots 2, a lens 3, an LED light source 4, screen printing dots 5, and a PCB 6;
one side of the composite diffusion plate 1 close to the PCB 6 is provided with secondary compensation dots 2, the secondary compensation dots 2 are distributed in a non-uniform mode, the secondary compensation dots 2 in a low bright area are designed to be in a large and dense state, the secondary compensation dots 2 in a high bright area are designed to be in a small and sparse state, and the secondary compensation dots 2 in a medium bright area are designed to be in a large and sparse state; one side of the PCB 6 is fixedly provided with a lens 3; an LED light source 4 is arranged between the lens 3 and the PCB 6; silk-screen printing points 5 are arranged at the superposed positions of the lens 3 and the PCB 6; the circuit of the LED light source 4 on the PCB 6 is switched on, and the LED light source 4 emits light at the moment; some light rays are refracted by the lens 3 and converged on the composite diffusion plate 1, backlight subjective lighting effect secondary compensation is carried out through secondary compensation mesh points 2 printed in a silk screen mode on the composite diffusion plate 1, the secondary compensation mesh points 2 printed in a silk screen mode on the composite diffusion plate 1 are different in arrangement and diameter in a high-brightness area, a middle-brightness area and a low-brightness area, most light paths can be adjusted through dimming of the secondary compensation mesh points 2 on the composite diffusion plate 1, the density and the size of the mesh points can be obviously changed to achieve local dimming, light rays are better displayed, other light rays are refracted by the lens 3 and converged on the PCB 6, and the light rays are further reflected to the composite diffusion plate 1 through the silk screen printing points 5 on the PCB 6;
the composite diffusion plate 1 comprises a first diffusion plate 11 and a second diffusion plate 14, wherein the first diffusion plate 11 is arranged on the top surface of the second diffusion plate 14, micro protrusions 12 and grooves 13 are arranged on the light incident surface of the first diffusion plate 11, the grooves 13 are arranged at equal intervals, the micro protrusions 12 are of a triangular structure, and the grooves 13 are of a V-shaped structure; when light irradiates on the micro-protrusions 12, the light is emitted from one medium to another medium to be reflected and refracted, the light is diffused through refraction, and the light is partially reflected to other micro-protrusions 12 through reflection to be reflected and refracted again, so that the light has a good diffusion effect;
the second diffusion plate 14 includes a scattering particle film layer 7, a first base layer 8, a matrix 9, and a second base layer 10; the secondary compensation mesh point 2 is positioned on the side surface of the scattering particle film layer 7, the other side surface of the secondary compensation mesh point 2 is provided with a first base layer 8, a matrix 9 is arranged on the first base layer 8, a second base layer 10 is arranged on the matrix 9, a first diffusion plate 11 is positioned on the second base layer 10, and concave-convex surfaces are respectively arranged on two sides of the matrix 9, which are respectively connected with the first base layer 8 and the second base layer 10;
therefore, when light emitted by the light source passes through the scattering particle film layer 7, the first base layer 8, the matrix 9 and the second base layer 10 in sequence, the concave-convex surfaces on the scattering particle film layer 7 and the matrix 9 scatter the light emitted by the light source, so that the uniformity of the light source after passing through the second diffusion plate 14 can be improved; the first diffuser plate 11 and the second diffuser plate 14 are made of polycarbonate, PP, or PMMA, and thermosetting plastics such as polycarbonate, PP, or PMMA have good optical properties and are convenient to process.
The working principle of the utility model is as follows: the circuit of the LED light source 4 on the PCB 6 is switched on, and the LED light source 4 emits light at the moment; some light rays are refracted by the lens 3 and converged on the composite diffusion plate 1, and backlight subjective lighting effect secondary compensation is carried out through secondary compensation dots 2 silk-screened on the composite diffusion plate 1;
when a light source passes through the composite diffusion plate 1, light emitted by the light source firstly passes through the scattering particle film layer 7, the first base layer 8, the matrix 9 and the second base layer 10 in sequence, wherein the concave-convex surfaces on the scattering particle film layer 7 and the matrix 9 scatter the light emitted by the light source, so that the scattering uniformity of the light source after passing through the second diffusion plate 14 can be improved; and then the light irradiates on the micro-protrusions 12 of the first diffusion plate 11, the light is emitted from one medium to another medium to be reflected and refracted, the light is diffused through refraction, and the light is partially reflected to other micro-protrusions 12 through reflection to be reflected and refracted again, so that the light has a good diffusion effect.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the utility model. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (8)
1. A secondary compensation device for backlight subjective lighting effect is characterized by comprising a composite diffusion plate (1); a first diffusion plate (11) of the composite diffusion plate (1) is arranged on the top surface of a second diffusion plate (14), and a light incident surface of the first diffusion plate (11) is provided with a micro-protrusion (12) and a groove (13); the side of the secondary compensation mesh point (2) of the second diffusion plate (14) is provided with a first base layer (8), the first base layer (8) is provided with a base body (9), the base body (9) is provided with a second base layer (10), and the first diffusion plate (11) is located on the second base layer (10).
2. The backlight subjective light effect secondary compensation device according to claim 1, wherein the grooves (13) are arranged at equal intervals, the micro-protrusions (12) are triangular structures, and the grooves (13) are V-shaped structures.
3. A backlight subjective light effect secondary compensation device according to claim 1, wherein the base (9) is provided with a concave-convex surface on the side surface connected with the first base layer (8) and the second base layer (10).
4. The backlight subjective light effect secondary compensation device according to claim 1, wherein the composite diffusion plate (1) is provided with secondary compensation dots (2) on one side close to the PCB (6).
5. The secondary compensation device for backlight subjective lighting effect according to claim 4, wherein a lens (3) is fixedly installed on one side of the PCB (6), and the LED light source (4) is installed between the lens (3) and the PCB (6).
6. The backlight subjective light effect secondary compensation device according to claim 4, wherein the secondary compensation dots (2) are arranged non-uniformly.
7. The backlight subjective light effect secondary compensation device according to claim 5, wherein silk-screen dots (5) are arranged at the position where the lens (3) and the PCB (6) are overlapped.
8. A backlight subjective light effect secondary compensation device according to claim 4, characterised in that the secondary compensation dots (2) are located on the side of the scattering particle film layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973600.4U CN216485607U (en) | 2021-11-30 | 2021-11-30 | Secondary compensation device for backlight subjective lighting effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122973600.4U CN216485607U (en) | 2021-11-30 | 2021-11-30 | Secondary compensation device for backlight subjective lighting effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216485607U true CN216485607U (en) | 2022-05-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122973600.4U Active CN216485607U (en) | 2021-11-30 | 2021-11-30 | Secondary compensation device for backlight subjective lighting effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216485607U (en) |
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2021
- 2021-11-30 CN CN202122973600.4U patent/CN216485607U/en active Active
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