CN212781321U - Light guide plate and diffusion plate integrated module - Google Patents
Light guide plate and diffusion plate integrated module Download PDFInfo
- Publication number
- CN212781321U CN212781321U CN202021983921.1U CN202021983921U CN212781321U CN 212781321 U CN212781321 U CN 212781321U CN 202021983921 U CN202021983921 U CN 202021983921U CN 212781321 U CN212781321 U CN 212781321U
- Authority
- CN
- China
- Prior art keywords
- light
- light guide
- plate
- layer
- diffuser
- 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.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a light guide plate diffuser plate integration module, include: the light guide plate comprises a light inlet plate and a light outlet plate, wherein a light guide medium is filled between the light inlet plate and the light outlet plate, and the refractive index of the light guide medium is smaller than that of the light inlet plate and that of the light outlet plate; the light inlet plate is provided with a plurality of micro light diffusers which are provided with arc surfaces, and the roots at two sides of the arc surfaces form an inclined plane to be connected with the light inlet surface; the light-emitting plate sequentially comprises a microstructure diffusion layer, a silk-screen-free light guide layer and a high reflection layer from top to bottom; the microstructure diffusion layer is formed by uniformly and tightly arranging a plurality of salient point structures, a plurality of light diffusion particles are arranged in the microstructure diffusion layer, and a plurality of light guide particles are arranged in the silk-screen-free light guide layer. Adopt the utility model discloses, have advantages such as simple structure, leaded light are effectual, long service life.
Description
Technical Field
The utility model relates to a LED field especially relates to light guide plate diffuser plate integration module.
Background
At present, a large number of light guide plates are used in liquid crystal display devices, lighting apparatuses, lighting advertisements, etc., and most of the light guide plates at present are composed of a diffusion plate, a light guide plate substrate, and a reflection plate, wherein the diffusion plate, the light guide plate substrate, and the reflection plate are manufactured separately, and then the diffusion plate, the light guide plate substrate, and the reflection plate are bonded together in the correct order to form the light guide plate, and the structure further has the following defects: complex manufacturing process, high cost, low light guide effect and the like. Therefore, a light guide plate and diffuser plate integrated module is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a light guide plate diffuser plate integration module has advantages such as simple structure, leaded light are effectual, long service life.
Based on this, the utility model provides a light guide plate diffuser plate integration module, the module includes:
the light guide plate comprises a light inlet plate and a light outlet plate, wherein a light guide medium is filled between the light inlet plate and the light outlet plate, and the refractive index of the light guide medium is smaller than that of the light inlet plate and that of the light outlet plate;
the light inlet plate is provided with a plurality of micro light diffusers which are provided with arc surfaces, and the roots at two sides of the arc surfaces form an inclined plane to be connected with the light inlet surface;
the light-emitting plate sequentially comprises a microstructure diffusion layer, a silk-screen-free light guide layer and a high reflection layer from top to bottom; the microstructure diffusion layer is formed by uniformly and tightly arranging a plurality of salient point structures, a plurality of light diffusion particles are arranged in the microstructure diffusion layer, and a plurality of light guide particles are arranged in the silk-screen-free light guide layer.
Wherein, the microstructure diffusion layer is formed by a plurality of bump structures which are evenly and closely arranged, and comprises:
at least two rows of light guide salient points, at least two light guide salient points are arranged on each row of light guide salient points, and the salient points of adjacent rows are arranged in a staggered mode.
Wherein, the light guide salient points are regular rectangular pyramids.
The distance L between wave crests of every two adjacent bump structures of the microstructure diffusion layer is 0.02-0.5mm, and the height H of each bump structure is 0.010-0.1 mm.
Wherein the concentration of the light diffusion particles is 0.05% -2%.
Wherein, the light guide medium is air.
Wherein, the thickness of the high reflection layer is 0.045-0.300mm, and the reflectivity is more than 98%.
Compared with the prior art, the utility model discloses following beneficial effect has:
when the light source of the external light emitting diode is emitted through the light incident surface of the light incident plate, the light source can generate refraction in the left-right direction and multiple angles after penetrating through the cambered surface of the light diffuser, and the light source can generate refraction in the left-right direction and fixed angles when penetrating through the inclined surfaces of the roots at the two sides of the light diffuser; the light source refracted by the cambered surface range in the light diffuser is uniformly diffused and transmitted towards the inside of the light guide plate, and the light source refracted by the inclined surface ranges at two sides of the light diffuser is transmitted towards the inside of the light guide plate in a fixed direction, so that the original light emitting angle of the light emitting diode can be opened and amplified, and the opened light rays cannot be too concentrated in the same direction to generate bright lines, and further the point light source of the light emitting diode can be opened to have a larger light emitting angle when entering the light guide plate, and can have uniform light source diffusion efficiency.
Light is in passing through when going into the worn-out fur, can by it diffuses to go into the worn-out fur, and light after the diffusion enters into leaded light medium, leaded light medium carries out further scattering to the light after the diffusion to obtain better diffusion effect, process after the further scattering of leaded light medium, light gets into go out the worn-out fur, the micro-structure diffusion layer that goes out the worn-out fur includes multirow leaded light bump, has two leaded light bumps at least on every row leaded light bump, and the bump of adjacent row staggers the setting, leaded light bump be the regular rectangular pyramid. This structure can be better to light diffuse, avoid diffusing insufficient problem.
The utility model discloses make light guide plate diffuser plate integration module, its production technology is more simple, and the cost also can reduce thereupon to be suitable for large-scale production and popularization and application, this light guide plate still has advantages such as leaded light performance is good, long service life simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a light guide plate and diffuser plate integrated module according to an embodiment of the present invention;
fig. 2 is a schematic view of a light incident plate according to an embodiment of the present invention;
fig. 3 is a schematic view of a light emitting panel according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic view of a light guide plate and diffuser plate integrated module provided by the embodiment of the present invention, the module includes:
the light guide plate comprises a light inlet plate 101 and a light outlet plate 103, wherein a light guide medium 102 is filled between the light inlet plate 101 and the light outlet plate 103, and the refractive index of the light guide medium 102 is smaller than that of the light inlet plate 101 and the light outlet plate 103;
fig. 2 is a schematic view of the light incident plate 101 according to an embodiment of the present invention, the light incident plate 101 is formed with a plurality of micro light diffusers 231, and the light diffusers 231 have an arc surface 2311, and the root portions of two sides of the arc surface 2311 are an inclined surface 2312 and are connected to the light incident surface 23;
the light emitting surface 21 of the light incident plate 101 is used for emitting light.
Fig. 3 is a schematic view of the light emitting panel 103 according to an embodiment of the present invention, wherein the light emitting panel 103 sequentially includes, from top to bottom, a microstructure diffusion layer 301, a screen-printing-free light guide layer 302, and a high reflection layer 303; the microstructure diffusion layer 301 is formed by uniformly and tightly arranging a plurality of bump structures 3011, a plurality of light diffusion particles are arranged in the microstructure diffusion layer 301, a plurality of light guide particles are arranged in the silk-screen-free light guide layer 302, and the light diffusion particles are circular, oval, triangular and/or rhombic.
The particle size of the light guide particles is less than or equal to 300nm, and the light guide particles are made of organic silicon materials.
The light diffusion particles comprise large particle diffusion particles and small particle diffusion particles, the particle size of the large particle diffusion particles is 4-10 mu m, and the particle size of the small particle diffusion particles is 1-4 mu m.
The light diffusion particles are at least one of silica particles, calcium carbonate particles, titanium dioxide particles, polymethyl methacrylate particles, polystyrene particles, polycarbonate particles and organic siloxane particles.
The microstructure diffusion layer 301, the silk-screen-free light guide layer 302 and the high reflection layer 303 can be made of PMMA plastic, PC plastic, MS plastic or PS plastic through one-step extrusion calendaring molding.
The thickness W of the microstructure diffusion layer 301 is 0.1-2.0 mm.
The microstructure diffusion layer 301 is formed by uniformly and tightly arranging a plurality of bump structures 3011, and includes:
at least two rows of light guide salient points, at least two light guide salient points are arranged on each row of light guide salient points, and the salient points of adjacent rows are arranged in a staggered mode.
Wherein, the light guide salient points are regular rectangular pyramids.
The peak distance L between every two adjacent bump structures 3011 of the microstructure diffusion layer is 0.02-0.5mm, and the height of each bump structure 3011 is 0.010-0.1 mm.
The thickness E of the silk-screen-free light guide layer is 1-6 mm.
According to the specific diffusion requirement and the actual thickness of the light emitting plate 103 and the light incident plate 101, the distance between the light emitting plate 103 and the light incident plate 101 can be properly adjusted, so that the diffusion light path is adjusted, and the diffusion effect is further adjusted.
The concentration of the light diffusion particles is 0.05% -2%.
The light guide medium 102 is air, and may be filled with other liquid or gas with a refractive index satisfying the requirement.
The high-reflection layer 302 is 0.045-0.300mm, and the reflectivity is more than 98%. The high reflection layer 302 is a white high reflection layer.
The silk screen printing-free light guide layer comprises a high-refraction layer, a protective layer is arranged on the side, opposite to the silk screen printing-free light guide layer, of the high-refraction layer, the protective layer is composed of at least 2 layers of a low-refraction layer and a high-refraction layer, the low-refraction layer is formed by low-refraction inorganic matters with refraction indexes being more than 0.5 and less than 2.0, the high-refraction layer is formed by high-refraction inorganic matters with refraction indexes being more than 1.8 and less than 4.0, the refraction index of the high-refraction inorganic matters is more than 0.5 higher than that of the low-refraction inorganic matters, the optical thickness of the low-refraction layer is more than 110nm and less than. The inorganic matter with low refractive index is SiO2, and the inorganic matter with high refractive index is TiO 2. By providing the protective layer, the reflection performance of the high reflection layer can be improved.
Compared with the prior art, the utility model discloses following beneficial effect has:
when the light source of the external light emitting diode is emitted through the light incident surface of the light incident plate 101, the light source can generate refraction in left and right directions at multiple angles after penetrating through the cambered surface of the light diffuser, and the light source can generate refraction in left and right directions at fixed angles when penetrating through the inclined surfaces of the roots at two sides of the light diffuser; the light source refracted by the cambered surface range in the light diffuser is uniformly diffused and transmitted towards the inside of the light guide plate, and the light source refracted by the inclined surface ranges at two sides of the light diffuser is transmitted towards the inside of the light guide plate in a fixed direction, so that the original light emitting angle of the light emitting diode can be opened and amplified, and the opened light rays cannot be too concentrated in the same direction to generate bright lines, and further the point light source of the light emitting diode can be opened to have a larger light emitting angle when entering the light guide plate, and can have uniform light source diffusion efficiency.
Light can be by when going into the light board 101, the light after the diffusion enters into leaded light medium 102, leaded light medium 102 carries out further scattering to the light after the diffusion to obtain better diffusion effect, through after the further scattering of leaded light medium 102, light enters into play light board 103, the micro-structure diffusion layer that goes out light board 103 includes multirow leaded light bump, has at least two leaded light bumps on every row leaded light bump, and the bump of adjacent row staggers and sets up, leaded light bump be the regular rectangular pyramid. This structure can be better to light diffuse, avoid diffusing insufficient problem.
The utility model discloses make light guide plate diffuser plate integration module, its production technology is more simple, and the cost also can reduce thereupon to be suitable for large-scale production and popularization and application, this light guide plate still has advantages such as leaded light performance is good, long service life simultaneously.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (7)
1. Light guide plate diffuser plate integration module, its characterized in that includes:
the light guide plate comprises a light inlet plate and a light outlet plate, wherein a light guide medium is filled between the light inlet plate and the light outlet plate, and the refractive index of the light guide medium is smaller than that of the light inlet plate and that of the light outlet plate;
the light inlet plate is provided with a plurality of micro light diffusers which are provided with arc surfaces, and the roots at two sides of the arc surfaces form an inclined plane to be connected with the light inlet surface;
the light-emitting plate sequentially comprises a microstructure diffusion layer, a silk-screen-free light guide layer and a high reflection layer from top to bottom; the microstructure diffusion layer is formed by uniformly and tightly arranging a plurality of salient point structures, a plurality of light diffusion particles are arranged in the microstructure diffusion layer, and a plurality of light guide particles are arranged in the silk-screen-free light guide layer.
2. The light guide plate and diffuser plate integrated module as claimed in claim 1, wherein said micro-structured diffuser layer is formed by uniformly and tightly arranging a plurality of bump structures, and comprises:
at least two rows of light guide salient points, at least two light guide salient points are arranged on each row of light guide salient points, and the salient points of adjacent rows are arranged in a staggered mode.
3. The light guide plate and diffuser plate integrated module as claimed in claim 2, wherein said light guide protrusions are regular rectangular pyramids.
4. The light guide plate and diffuser plate integrated module as claimed in claim 1, wherein the pitch L between peaks of each two adjacent bump structures of the micro-structured diffuser layer is 0.02-0.5mm, and the height H of each bump structure is 0.010-0.1 mm.
5. The light guide plate and diffuser plate integrated module as claimed in claim 1, wherein the concentration of said light diffusing particles is 0.05% to 2%.
6. The light guide plate and diffuser plate integrated module as claimed in claim 1, wherein said light guide medium is air.
7. The light guide plate and diffuser plate integrated module of claim 1, wherein the thickness of said high reflection layer is 0.045-0.300mm, and the reflectivity is greater than 98%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021983921.1U CN212781321U (en) | 2020-09-11 | 2020-09-11 | Light guide plate and diffusion plate integrated module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021983921.1U CN212781321U (en) | 2020-09-11 | 2020-09-11 | Light guide plate and diffusion plate integrated module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212781321U true CN212781321U (en) | 2021-03-23 |
Family
ID=75065415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021983921.1U Active CN212781321U (en) | 2020-09-11 | 2020-09-11 | Light guide plate and diffusion plate integrated module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212781321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721390A (en) * | 2021-09-02 | 2021-11-30 | 东莞市谷麦光学科技有限公司 | Diffusion film for mini LED backlight module, preparation method of diffusion film and backlight module |
-
2020
- 2020-09-11 CN CN202021983921.1U patent/CN212781321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113721390A (en) * | 2021-09-02 | 2021-11-30 | 东莞市谷麦光学科技有限公司 | Diffusion film for mini LED backlight module, preparation method of diffusion film and backlight module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8061877B2 (en) | Prism sheet having parallelogram microstructures | |
| US7859611B2 (en) | Diffuser prism sheet having amorphous light diffusers on prism valleys, backlight unit using the same, mold, and associated methods | |
| CN101126821B (en) | Optical board and the backlight module group using same | |
| CN100462743C (en) | Optical pervasion thin film and LCD device using same | |
| US7862192B2 (en) | Lighting device | |
| CN101191853B (en) | Optical plate | |
| JP2011014520A (en) | Lighting device and display | |
| TW201323946A (en) | Light guide plate and back-lit module using the same | |
| US10816853B2 (en) | Backlight module and liquid crystal display device | |
| US7929213B2 (en) | Prism sheet | |
| CN212781321U (en) | Light guide plate and diffusion plate integrated module | |
| US7969655B2 (en) | Prism sheet | |
| CN101191852A (en) | Optical plate | |
| US8256932B2 (en) | Light diffusion plate and backlight module using the same | |
| US7830629B2 (en) | Prism sheet | |
| CN208459732U (en) | A kind of backlight module and liquid crystal display of efficient blast | |
| CN101191844A (en) | Optical plate | |
| US20080062525A1 (en) | Diffusion plate having surface microstructure | |
| CN214845858U (en) | Blast panel and blast device | |
| US20090244739A1 (en) | Prism sheet | |
| CN101354452A (en) | Optical diffusion thin film and LCD device using the same | |
| CN201319075Y (en) | Optical diffusion membrane and liquid crystal display device using same | |
| CN112413431A (en) | Mini LED lamp plate | |
| CN217932349U (en) | Backlight module with novel optical diaphragm | |
| CN220305511U (en) | Inverse prism composite brightness enhancement film and liquid crystal display backlight module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |