CN209879203U - Backlight module lens and backlight module thereof - Google Patents
Backlight module lens and backlight module thereof Download PDFInfo
- Publication number
- CN209879203U CN209879203U CN201920208250.2U CN201920208250U CN209879203U CN 209879203 U CN209879203 U CN 209879203U CN 201920208250 U CN201920208250 U CN 201920208250U CN 209879203 U CN209879203 U CN 209879203U
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- plain noodles
- lens body
- backlight module
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- 235000009537 plain noodles Nutrition 0.000 claims abstract description 44
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 238000009792 diffusion process Methods 0.000 claims description 16
- 239000002096 quantum dot Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000012788 optical film Substances 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 6
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 5
- 239000004926 polymethyl methacrylate Substances 0.000 description 5
- -1 polysiloxane Polymers 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- IYZWUWBAFUBNCH-UHFFFAOYSA-N 2,6-dichlorobiphenyl Chemical compound ClC1=CC=CC(Cl)=C1C1=CC=CC=C1 IYZWUWBAFUBNCH-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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- Planar Illumination Modules (AREA)
Abstract
The utility model discloses a backlight unit lens and backlight unit thereof, including the lens body, the lens body is including going into plain noodles, reflection of light face, first play plain noodles and second play plain noodles, the income plain noodles is the combination cambered surface, just the income plain noodles encloses into the light source mounting groove, the reflection of light face is the reverse cone cambered surface, first play plain noodles is located the lateral part of lens body, the second goes out the plain noodles and is located the top of lens body, the reflection of light face with the second goes out the plain noodles and forms reverse cone cambered surface hollow groove. When the backlight module lens is matched with the optical film for use, the emergent light spots are finer and smoother, the distribution of reflected light is more uniform, the visual effect of the picture is better, the bad problems of lamp shadow, light ring and bright and dark zone on the display equipment are solved, and the quality of optical display is improved.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a backlight unit lens and backlight unit thereof.
Background
With the continuous development of the liquid crystal display technology, the high-definition and large-size liquid crystal display must have a high-performance backlight technology to be matched with the liquid crystal display, the liquid crystal display is a non-luminous display device, the displayed figures and characters are the result of modulating light, the backlight module is a light source supply device positioned at the back of the liquid crystal display, and the liquid crystal display can achieve the display function through the backlight module, so the performance of the backlight module can directly influence the display quality of the liquid crystal display, and the luminous effect of the backlight module can directly influence the visual effect of the liquid crystal display module.
The backlight module is divided into a side-in type and a direct type according to the difference of the light source distribution positions, the light spot illumination range of a refraction type lens and a reflection type lens used in the traditional direct type backlight module is narrow, the light intensity distribution angle is small, particularly when the backlight module is matched with a quantum dot membrane or a quantum dot plate, the excitation of a backlight source to quantum dots is relatively limited, local chromatic aberration easily appears from the aspect of picture effect, the phenomena of light rings, light spots and the like are shown, and the problems that the number of lamp beads is increased, various optical films are matched, better ink measures and the like are difficult to solve are solved.
SUMMERY OF THE UTILITY MODEL
The utility model provides an enlarge backlight unit lens of even light-emitting of facula illuminance scope and backlight unit thereof.
The utility model provides a backlight unit lens, including the lens body, the lens body is including going into plain noodles, reflection of light face, first play plain noodles and second play plain noodles, the income plain noodles is the combination cambered surface, just the income plain noodles encloses into the light source mounting groove, the reflection of light face is the reverse cone cambered surface, first play plain noodles is located the lateral part of lens body, just first play plain noodles is closed cambered surface, the second go out the plain noodles set up in the top of lens body, the reflection of light face with the second goes out the plain noodles and forms reverse cone cambered surface hollow groove.
Further, the combination cambered surface includes first cambered surface and second cambered surface, first cambered surface is the cylinder cambered surface, the second cambered surface is the class cone cambered surface, first cambered surface with the second cambered surface is followed lens body bottom connects gradually.
Further, the cross section of the first light emitting surface is a circular surface.
Furthermore, the second light emitting surface is an atomizing surface.
Further, the bottom of the atomization surface is bonded with the edge of the light reflecting surface.
Further, the atomization surface is of a semitransparent porous structure polymer sheet structure.
Further, the atomizing surface material contains a functional particle material.
Further, the functional particle material is one or more of polysiloxane polymer micro powder, polymethyl methacrylate microspheres, polystyrene microspheres, nano silicon dioxide and nano titanium dioxide.
The utility model provides a backlight module, including luminous chip, PCB board, reflectance coating, diffuser plate, diffusion coating, quantum dot membrane, brightness enhancement film down, go up brightness enhancement film, go up diffusion coating, liquid crystal display panel and module frame, still include backlight module lens, backlight module lens includes the lens body, the lens body includes income plain noodles, reflection of light face, first play plain noodles and second play plain noodles, the income plain noodles is the combination cambered surface, and the income plain noodles encloses into the light source mounting groove, the reflection of light face is the reverse cone cambered surface, first play plain noodles is located the lateral part of lens body, second play plain noodles is located the top of lens body, the reflection of light face with the second play plain noodles forms reverse cone cambered surface hollow groove;
the PCB board cooperation is arranged in the bottom of module frame, it is a plurality of backlight unit lens set up in PCB board top surface, it is a plurality of luminous chip set up in on the PCB board, just luminous chip correspond set up in the light source mounting groove, the diffuser plate set up in backlight unit lens top, diffusion film, quantum dot membrane, brightness enhancement film down, go up brightness enhancement film, go up diffusion film and liquid crystal display panel under another side collocation in proper order, the reflectance coating is located the bottom and the lateral part of module frame.
The utility model provides a backlight unit lens and backlight unit thereof, when backlight unit lens collocation blooming used, can make the facula of emergence more fine and smooth, the distribution of reverberation is more even, and the picture is looked the effect better, has solved the bad problem in lamp shadow, light ring and bright dark zone on the display device, has promoted optical display's quality.
Drawings
Fig. 1 is a schematic structural diagram of a backlight module lens according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a backlight module lens according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
The backlight module comprises a light incoming surface 1, a light reflecting surface 2, a first light outgoing surface 3, a second light outgoing surface 4, a light source mounting groove 5, an inverted cone cambered surface hollow groove 6, a square base table 7, a backlight module lens 8, a light emitting chip 9, a PCB (printed circuit board) 10, a reflecting film 11, a module frame 12, a diffusion plate 13, a lower diffusion film 14, a quantum dot film 15, a lower brightness enhancement film 16, an upper brightness enhancement film 17, an upper diffusion film 18 and a liquid crystal display panel 19.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. 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.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is also changed accordingly, and the connection may be a direct connection or an indirect connection.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1-2, the utility model provides a backlight module lens 8 of a preferred embodiment, including the lens body, the lens body is including going into plain noodles 1, reflection of light face 2, first play plain noodles 3 and second play plain noodles 4, and go into plain noodles 1 for the combination cambered surface, and goes into plain noodles 1 and enclose into light source mounting groove 5, and reflection of light face 2 is the reverse cone cambered surface, and first play plain noodles 3 are located the lateral part of lens body, and first play plain noodles 3 are closed cambered surface, and second play plain noodles 4 is located the top of lens body, and reflection of light face 2 forms closed reverse cone cambered surface hollow groove 6 with second play plain noodles 4. In this embodiment, the bottom of the lens body is set as a square base 7, which is convenient for improving the installation stability of the backlight module lens 8, the light source is arranged in the light source installation groove, the light source is emitted from the light incident surface 1 enclosed as the light source installation groove 5, the reflecting surface 2 is composed of an inverted cone cambered surface, the reflecting surface 2 totally reflects the light incident from the light incident surface 1 to the first light emitting surface 3 by using the total reflection principle, the first light emitting surface 3 is composed of a lens side wall, the first light emitting surface 3 is used for emitting the light incident from the light incident surface 1 and the light totally reflected from the reflecting surface 2, the second light emitting surface 4 is composed of an atomizing surface, and the atomizing surface is. The light incident surface 1 is arranged to be the combined arc surface, the second light emergent surface 4 and the reflecting surface 2, so that emergent light spots are finer, reflected light is more uniformly distributed, the picture visual effect is better, and the optical display quality is improved.
In this embodiment, the combination cambered surface includes first cambered surface and second cambered surface, and first cambered surface is the cylinder cambered surface, and the second cambered surface is the class cone cambered surface, and first cambered surface and second cambered surface connect gradually from lens body bottom, and first cambered surface and second cambered surface integrated into one piece. The cross section of the first light emitting surface 3 is a circular surface. This combination cambered surface contains the cambered surface of two different shapes, and the hollow groove that first cambered surface encloses is the cylinder, the hollow groove that the second cambered surface encloses is the class cone, and this cylinder hollow groove synthesizes light source mounting groove 5 with the class cone hollow groove, sets up into the combination cambered surface that encloses into combination hollow groove with going into plain noodles 1, can make the distribution of emergent light source more even.
In this embodiment, the second light emitting surface 4 is an atomizing surface, the bottom of the atomizing surface is connected to the edge of the light reflecting surface 2 through an adhesive, and the atomizing surface is a polymer sheet structure with a semitransparent porous structure. The main material of the lens body in this embodiment is polymethyl methacrylate, the base material of the atomization surface of the second light emitting surface 4 is a polymethyl methacrylate sheet structure added with a polysiloxane polymer micro particle material, the addition amount of the polysiloxane polymer micro particle is 20-30%, and the transmittance of the second light emitting surface 4 sheet is 25-35%. The density and size of the porous structure of the atomizing layer of the second light-emitting surface 4 or the addition amount of the functional particle material need to be accurately measured, and the measurement basis is that the intensity of the emergent light of the second light-emitting surface 4 reaching the display screen and the intensity of the emergent light of the first light-emitting surface 3 refracting to the display screen need to be approximately consistent. The edge of the second light-emitting surface 4 and the edge of the reflecting surface 2 are fixed by a polymer adhesive, so that the direct type reflecting light lens and the atomizing structure are combined into an integral lens body, and the radiation facula with high facula uniformity and outstanding light scattering effect can be obtained, and the direct type reflecting light lens can be applied to ultrathin television backlight sources and flat-panel lighting lamps.
In another embodiment, the atomization surface is a functional particulate material. The functional particle material is polysiloxane polymer micro powder, polymethyl methacrylate (PMMA) microspheres, Polystyrene (PS) microspheres and nano silicon dioxide (SiO)2) Nano titanium dioxide (TiO)2) One or more of (a).
As shown in fig. 3, the present invention provides a backlight module, including a light emitting chip 9, a PCB 10, a reflective film 11, a diffuser 13, a lower diffuser film 14, a quantum dot film 15, a lower brightness enhancement film 16, an upper brightness enhancement film 17, an upper diffuser film 18, a liquid crystal display panel 19 and a module frame 12, and further including a backlight module lens 8, the backlight module lens 8 includes a lens body, the lens body includes a light incident surface 1, a light reflecting surface 2, a first light emitting surface 3 and a second light emitting surface 4, the light incident surface 1 is a combined arc surface, and the light incident surface 1 encloses a light source mounting groove 5, the light reflecting surface 2 is an inverted cone arc surface, the first light emitting surface 3 is located at a side portion of the lens body, the second light emitting surface 4 is located at a top portion of the lens body, and the light reflecting surface 2 and the second light emitting surface;
the bottom of module frame 12 is arranged in the cooperation of PCB board 10, a plurality of backlight unit lens 8 set up in PCB board 10 top surface, a plurality of luminous chips 9 set up on PCB board 10, and luminous chip 9 corresponds and sets up in light source mounting groove 5, diffuser plate 13 sets up in backlight unit lens 8 top, diffusion barrier 14, quantum dot membrane 15, brightness enhancement film 16 down, go up brightness enhancement film 17, go up diffusion barrier 18 and liquid crystal display panel 19 down collocate in proper order to the another side, the bottom and the lateral part of module frame 12 are located to reflectance coating 11.
In this embodiment, the light emitting chip 9 in the light source mounting groove 5 of the backlight module lens 8, the light emitting chip 9 in this embodiment adopts an LED light bar chip, the light emitted from the light emitting chip 9 enters from the light incident surface 1, a part of the light enters the backlight module lens 8 through the second arc surface of the cone surface of the light source mounting groove 5, and is totally reflected to the upper part of the first light emitting surface 3 through the light reflecting surface 2, a part of the light enters the lower part of the first light emitting surface 3 through the first arc surface, the light emitted from the first light emitting surface 3 passes through the direct lower reflecting film 11, passes through the diffuser plate 13, the lower diffusing film 14, the quantum dot film 15, the lower brightness enhancement film 16, the upper brightness enhancement film 17 and the upper diffusing film 18 in the backlight module, and is distributed on the liquid crystal display panel 19, after the light enters the lens contact light reflecting surface 2 through the light incident surface 1, a small part of the light directly exits through the light reflecting surface 2, passes, the emergent light also passes through the backlight module to reach the liquid crystal display panel 19. By adjusting the addition amount of the polysiloxane polymer micro powder particles and the transmittance of the second light-emitting surface 4 sheet, the intensity of the emergent light of the first light-emitting surface 3 refracted to the display screen and the intensity of the emergent light of the second light-emitting surface 4 reaching the display screen are approximately consistent, and the aims of high emergent light spot uniformity and uniform light dispersion effect of the lens are finally achieved.
When the backlight module lens provided by the embodiment is used in combination with the LED lamp strip and the reflector plate, the distribution of emergent light sources can be more uniform, emergent light spots are more delicate, the image visual effect is better, the defects of lamp shadow, light ring, bright and dark band and the like on the display equipment caused by uneven light emitting from the top of the lens and poor effect of a diffusion part are greatly improved, and the product quality is improved; meanwhile, the quantity of required lamp beads, the using amount of a dispersing agent in the diffusion plate and the using quantity of various membranes can be reduced to a certain extent, so that the backlight matching mode of the display equipment is more flexible, and the production cost is further reduced.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (8)
1. The utility model provides a backlight module lens which characterized in that, includes the lens body, the lens body includes income plain noodles, reflection of light face, first play plain noodles and second play plain noodles, the income plain noodles is the combination cambered surface, just the income plain noodles encloses into the light source mounting groove, the reflection of light face is the reverse cone cambered surface, first play plain noodles is located the lateral part of lens body, just first play plain noodles is the closed cambered surface, the second goes out the plain noodles set up in the top of lens body, the reflection of light face with the second goes out the plain noodles and forms closed reverse cone cambered surface hollow groove.
2. The backlight module lens of claim 1, wherein the combined arc surface comprises a first arc surface and a second arc surface, the first arc surface is a cylindrical arc surface, the second arc surface is a cone-like arc surface, and the first arc surface and the second arc surface are sequentially connected from the bottom of the lens body.
3. The lens of claim 1, wherein the cross-section of the first light emitting surface is a circular surface.
4. The lens of claim 1, wherein the second light emitting surface is an atomized surface.
5. The backlight module lens of claim 4, wherein the bottom of the fogging surface is bonded to the edge of the light reflecting surface.
6. The lens of claim 5, wherein the fogging surface is a translucent porous structured polymer sheet structure.
7. The backlight module lens of claim 5, wherein the fogging surface material comprises functional particle material.
8. A backlight module comprises a light emitting chip, a PCB (printed Circuit Board), a reflecting film, a diffusion plate, a lower diffusion film, a quantum dot film, a lower brightness enhancement film, an upper diffusion film, a liquid crystal display panel and a module frame, and is characterized by further comprising a backlight module lens, wherein the backlight module lens comprises a lens body, the lens body comprises a light incoming surface, a light reflecting surface, a first light outgoing surface and a second light outgoing surface, the light incoming surface is a combined arc surface, the light incoming surface is surrounded to form a light source installation groove, the light reflecting surface is an inverted cone arc surface, the first light outgoing surface is positioned on the side part of the lens body, the second light outgoing surface is positioned at the top of the lens body, and the light reflecting surface and the second light outgoing surface form an inverted;
the PCB board cooperation is arranged in the bottom of module frame, it is a plurality of backlight unit lens set up in PCB board top surface, it is a plurality of luminous chip set up in on the PCB board, just luminous chip correspond set up in the light source mounting groove, the diffuser plate set up in backlight unit lens top, diffusion film, quantum dot membrane, brightness enhancement film down, go up brightness enhancement film, go up diffusion film and liquid crystal display panel under another side collocation in proper order, the reflectance coating is located the bottom and the lateral part of module frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920208250.2U CN209879203U (en) | 2019-02-18 | 2019-02-18 | Backlight module lens and backlight module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920208250.2U CN209879203U (en) | 2019-02-18 | 2019-02-18 | Backlight module lens and backlight module thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209879203U true CN209879203U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920208250.2U Active CN209879203U (en) | 2019-02-18 | 2019-02-18 | Backlight module lens and backlight module thereof |
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| CN (1) | CN209879203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561933A (en) * | 2022-10-08 | 2023-01-03 | 浙江锦德光电材料有限公司 | A kind of multilayer quantum dot composite film |
| CN117250792A (en) * | 2023-08-04 | 2023-12-19 | 深圳康佳电子科技有限公司 | Diffusion plate, backlight source and display |
-
2019
- 2019-02-18 CN CN201920208250.2U patent/CN209879203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115561933A (en) * | 2022-10-08 | 2023-01-03 | 浙江锦德光电材料有限公司 | A kind of multilayer quantum dot composite film |
| CN117250792A (en) * | 2023-08-04 | 2023-12-19 | 深圳康佳电子科技有限公司 | Diffusion plate, backlight source and display |
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