CN114690285A - Matrix lens structure, backlight module and display device - Google Patents
Matrix lens structure, backlight module and display device Download PDFInfo
- Publication number
- CN114690285A CN114690285A CN202210506084.0A CN202210506084A CN114690285A CN 114690285 A CN114690285 A CN 114690285A CN 202210506084 A CN202210506084 A CN 202210506084A CN 114690285 A CN114690285 A CN 114690285A
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- Prior art keywords
- light
- lens
- matrix
- lens structure
- lenses
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- 239000011159 matrix material Substances 0.000 title claims abstract description 53
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 3
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 3
- 125000001475 halogen functional group Chemical group 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 description 13
- 238000005192 partition Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010024203 Lens dislocation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 201000000245 lens subluxation Diseases 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/0006—Arrays
- G02B3/0037—Arrays characterized by the distribution or form of lenses
- G02B3/0056—Arrays characterized by the distribution or form of lenses arranged along two different directions in a plane, e.g. honeycomb arrangement of lenses
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B2003/0093—Simple or compound lenses characterised by the shape
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Theoretical Computer Science (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a matrix lens structure, a backlight module and a display device, wherein the matrix lens structure comprises a mounting plate and a lens assembly, the lens assembly comprises a plurality of lenses which are arranged on the mounting plate in a matrix manner, each lens comprises a light inlet end and a light outlet end which are arranged oppositely, the light outlet ends are mounted on the mounting plate, the light inlet ends are far away from the light outlet ends, the cross sectional areas of the lenses are gradually arranged in a gradually-extending manner from the light inlet ends to the light outlet ends, and light rays entering the light inlet ends sequentially pass through the inner cavities of the lenses, the light outlet ends and the mounting plate to be emitted. The matrix lens structure of the invention ensures that the light rays emitted from a plurality of lenses cannot influence each other, thereby effectively preventing the occurrence of halo phenomenon.
Description
Technical Field
The invention relates to the technical field of display, in particular to a matrix lens structure, a backlight module and a display device.
Background
The Mini LED television has the advantages of high brightness, high contrast, high color and the like compared with the traditional television, with the increasing maturity of the Mini LED technology, more and more television manufacturers release the Mini LED televisions with different gears, the Mini LED television with the lens is adopted at the middle and low ends, and the Mini LED television without the lens is adopted at the high end. The number of partitions containing the Mini LED television ranges from tens to hundreds, and even the number of partitions of part of high-end Mini LED televisions reaches up to thousands of partitions. The more the number of the subareas is, the smaller the corresponding single-area is, and the better the dynamic contrast and HDR effect is.
However, as the number of the LED tv partitions increases, the light of the adjacent partitions can affect each other due to the light emitting angle of the LED and the secondary optics of the lens, so that the bright and dark partitions have obvious light effects.
Disclosure of Invention
The invention mainly aims to provide a matrix lens structure, a backlight module and a display device, and aims to solve the technical problem that light rays emitted from lenses influence each other in the prior art.
To achieve the above object, the present invention provides a matrix lens structure comprising:
mounting a plate;
the lens subassembly, the lens subassembly includes that a plurality of matrixes that are arranged lens on the mounting panel, each lens are including relative income light end and the light-emitting end that sets up, the light-emitting end install in the mounting panel, it keeps away from to go into the light end the light-emitting end, the cross-sectional area of lens certainly go into the light end to the direction of light-emitting end is the gradual expansion setting, gets into the light of going into the light end loops through the light-emitting end reaches the mounting panel jets out.
Optionally, the lens is of a truncated cone type structure or a truncated cone type structure.
Optionally, a center distance between any two adjacent light emitting ends is equal to a center distance between any two adjacent light incident ends.
Optionally, a plurality of the lenses are arranged in an array and spaced apart.
Optionally, the matrix lens structure further includes a fixing assembly disposed on the same side of the lens, the fixing assembly includes a plurality of fixing posts distributed at intervals in a matrix form, one end of each fixing post is mounted on the mounting plate, the other end of each fixing post protrudes out of the light incident end, and the plurality of fixing posts and the plurality of lens dislocation parts are disposed.
Optionally, the lenses and the fixing posts are distributed in multiple rows and multiple columns in a matrix manner, at least one row of the lenses is arranged between any two adjacent rows of the fixing posts, and/or at least one row of the lenses is arranged between any two adjacent rows of the fixing posts.
Optionally, the lens is a polymethylmethacrylate article.
Optionally, a plurality of the lenses are integrally formed on the mounting plate.
In addition, the invention also provides a backlight module, which comprises a back plate, a diffusion plate, a plurality of light-emitting pieces and the matrix lens structure, wherein the light-emitting pieces are arranged on the back plate in a matrix manner, the diffusion plate is arranged on the back plate and is opposite to the light-emitting pieces, the matrix lens structure is arranged between the diffusion plate and the light-emitting pieces, the mounting plate is abutted against the diffusion plate, and the light-entering end of each lens is correspondingly provided with one light-emitting piece.
In addition, the invention also provides a display device which comprises the backlight module.
In the technical scheme of the invention, in the using process of the matrix lens structure, the light source is emitted from the light inlet end or the light inlet end is abutted against the light emitting piece and the light emitting piece is covered, so that the light source emitted by the light emitting piece enters from the light inlet end and passes through the inner cavity of the lens to be emitted from the light outlet end and the mounting plate, the light source is limited by the structure of the lens, the light source can only be diffused from the position of the mounting plate, and the plurality of lenses are arranged on the mounting plate in a matrix manner, thereby preventing the light rays emitted by the lenses from influencing each other.
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 the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a matrix lens structure according to an embodiment of the invention;
FIG. 2 is a schematic view of a structure of a matrix lens structure and a back plate according to an embodiment of the invention;
fig. 3 is a schematic partial structure diagram of a backlight module according to an embodiment of the invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Matrix lens structure | 3 | |
| 1 | |
4 | |
| 2 | |
40 | |
| 20 | Lens and |
41 | |
| 200 | Light- |
42 | |
| 201 | Light emitting end |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
In addition, the descriptions related to "first", "second", etc. in the present invention are only 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 at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention 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, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 3, the invention provides a matrix lens structure, a backlight module and a display device.
In the technical scheme of the invention, in the process of using the matrix lens structure 100, the light source is emitted from the light-emitting end 200, or the light-emitting end 200 is abutted against the light-emitting piece 42, and the light-emitting piece 42 is covered, so that the light source emitted by the light-emitting piece 42 enters from the light-emitting end 200 and is emitted out through the light-emitting end 201 and the mounting plate 1, the light source can only be diffused from the position of the mounting plate 1 by limiting the structure of the lens 20 to the light source, the plurality of lenses 20 are arranged on the mounting plate 1 in a matrix manner, and the plurality of lenses 20 are arranged in one-to-one correspondence with the plurality of light-emitting pieces 42, thereby preventing the light sources of the adjacent light-emitting pieces 42 from influencing each other.
In this embodiment, the matrix lens structure 100 includes a mounting board 1 and a lens assembly 2, the lens assembly 2 includes a plurality of lenses 20 arranged on the mounting board 1 in a matrix form, the matrix lens structure 100 in this embodiment is a matrix lens structure 100 arranged in a four-row and four-column array, and in other embodiments, the arrangement manner of the matrix lens structure 100 is not limited to a four-row and four-column manner, such as five-row and five-column arrangement, or six-row and three-column arrangement. It will be appreciated that the matrix lens arrangement 100 can be arranged in any row and any column with a sufficiently large area of the mounting board 1. Each lens 20 includes an incident end 200 and an exit end 201 which are oppositely arranged, the exit end 201 is installed on the mounting board 1, the incident end 200 is far away from the exit end 201, the top plane of the incident end 200 in this embodiment is a square structure, and the top plane of the exit end 201 is a square structure, in other embodiments, the top plane of the incident end 200 may also be a rectangular structure, a circular structure or a polygonal structure; the top plane of the light-emitting end 201 may also be a rectangular structure, a circular structure or a polygonal structure.
Further, the lens 20 has a truncated cone-shaped structure or a truncated cone-shaped structure. In this embodiment, if the lens 20 has a truncated cone-shaped structure, the light entrance end 200 and the light exit end 201 are circular, and if the lens 20 has a truncated cone-shaped structure, the number of sides of the light entrance end 200 and the light exit end 201 is equal to the number of prisms of the truncated cone. The lens 20 is set to be of a circular truncated cone structure or a frustum structure, so that light rays emitted from the light inlet end 200 to the light outlet end 201 cannot be refracted on the inner wall of the lens 20 for multiple times, and uniformity of the light rays is guaranteed.
Further, the center distance between any two adjacent light-emitting ends 201 is equal to the center distance between any two adjacent light-entering ends 200. After the light incident ends 200 of the lenses 20 cover the light sources one by one, the pitch of the light sources emitted from the light exit ports by the lenses 20 is the same as the pitch of the light sources.
Specifically, the plurality of lenses 20 are arranged in an array at intervals. By distributing the plurality of lenses 20 at intervals, it is possible to prevent interference between adjacent lenses 20 when the plurality of lenses 20 mounted on the mounting board 1 are bent at the mounting board 1, thereby increasing the structural stability.
Specifically, matrix lens structure 100 still includes the fixed subassembly with 20 homonymies of lens setting, and fixed subassembly includes a plurality of fixed posts 3 that are matrix interval distribution, and the one end of fixed post 3 is installed in mounting panel 1, and the other end protrusion of fixed post 3 is in income light end 200, a plurality of fixed posts 3 and a plurality of lens 20 dislocation subsection. The lenses 20 and the fixing posts 3 are distributed in a matrix form to form a plurality of rows and a plurality of columns, at least one row of lenses 20 is arranged between any two adjacent rows of fixing posts 3, and/or at least one row of lenses 20 is arranged between any two adjacent rows of fixing posts 3. The matrix lens structure is applied to a backlight module 4, the backlight module 4 comprises a back plate 40 and a diffusion plate 41 which are oppositely arranged, an accommodating space is formed between the back plate 40 and the diffusion plate 41, a plurality of light emitting pieces 42 are arranged on the back plate 40 at intervals, a plurality of light incoming ends 200 are abutted with the light emitting pieces 42 in a one-to-one correspondence manner, a mounting plate 1 is abutted with the diffusion plate 41, one ends of fixing columns 3, far away from the mounting plate 1, are abutted with the back plate 40, the stability of the back plate 40 in the backlight module 4 is further improved, and a plurality of staggered fixing seats are arranged, so that the matrix lens structure 100 can be more stably mounted. One end of the fixing post 3, which is far away from the mounting board 1, protrudes out of the light incident end 200, so that a height difference can be formed between the fixing base and the light incident end 200, and the height difference can be properly adjusted according to the height of the light emitting element 42, and thus when the fixing post 3 abuts against the backboard 40, the light incident end 200 does not interfere with the light emitting element 42.
The lens 20 is a polymethylmethacrylate part. The lens 20 can be made to have the advantages of high transparency, low price, easy machining, etc. In other embodiments, the lens 20 may be made of a transparent material with a refractive index greater than or equal to 1.42.
The plurality of lenses 20 are integrally formed on the mounting board 1. So as to improve the connection strength between the plurality of lenses 20 and the mounting plate 1, thereby prolonging the service life thereof and reducing the maintenance cost of the equipment.
In addition, the present invention further provides a backlight module 4, the backlight module 4 includes a back plate 40, a diffusion plate 41, a plurality of light emitting members 42, and the matrix lens structure 100, wherein the plurality of light emitting members 42 are mounted on the back plate 40 in a matrix form, the diffusion plate 41 is mounted on the back plate 40 and is disposed opposite to the light emitting members 42, the matrix lens structure 100 is disposed between the diffusion plate 41 and the light emitting members 42, the mounting plate 1 abuts against the diffusion plate 41, and the light incident end 200 of each lens 20 is correspondingly provided with a light emitting member 42. It can be understood that the light emitting elements 42 can be LEDs, and the plurality of light emitting elements 42 are mounted on the back plate 40 in a matrix manner, so that the back plate 40 has a plurality of partitions, and the light incident end 200 of each lens 20 is correspondingly provided with the light emitting element 42, so that the light source emitted by each light emitting element 42 can be emitted to the diffusion plate 41 through the light incident end 200, the light emitting end 201 and the mounting plate 1 of the lens 20, and the light source emitted between the plurality of light emitting elements 42 cannot be affected, thereby preventing the mutual influence of the light sources emitted by the adjacent light emitting elements 42.
In addition, the invention also provides a display device which comprises the backlight module 4. Since the display device package includes all technical solutions of the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields directly/indirectly applied to the present invention are included in the scope of the present invention.
Claims (10)
1. A matrix lens structure, characterized in that the matrix lens structure comprises:
mounting a plate;
the lens subassembly, the lens subassembly includes that a plurality of matrixes that are arrange lens on the mounting panel, each lens are including relative income light end and the light-emitting end that sets up, the light-emitting end install in the mounting panel, go into the light end and keep away from the light-emitting end, the cross-sectional area of lens certainly go into the light end to the direction of light-emitting end is the setting of gradually expanding, gets into the light of going into the light end loops through the light-emitting end reaches the mounting panel jets out.
2. The lens structure of claim 1, wherein the lens is a truncated cone or a truncated cone.
3. The matrix lens structure of claim 1, wherein a center-to-center distance between any adjacent two of the light exit ends is equal to a center-to-center distance between any adjacent two of the light entry ends.
4. The matrix lens structure of claim 1 wherein a plurality of the lenses are spaced apart in an array.
5. The matrix lens structure of claim 4 further comprising a fixing element disposed on the same side of the lens, wherein the fixing element comprises a plurality of fixing posts spaced in a matrix pattern, one end of each fixing post is mounted on the mounting plate, the other end of each fixing post protrudes from the light incident end, and the plurality of fixing posts are offset from the plurality of lenses.
6. The matrix lens structure of claim 5 wherein said lenses and said anchor studs are arranged in a matrix of rows and columns, at least one row of said lenses being disposed between any two adjacent rows of said anchor studs and/or at least one column of said lenses being disposed between any two adjacent columns of said anchor studs.
7. A matrix lens structure according to any one of claims 1 to 6, wherein the lens is a polymethylmethacrylate part.
8. A matrix lens structure according to any one of claims 1 to 6, wherein a plurality of the lenses are integrally formed with the mounting plate.
9. A backlight module comprising a back plate, a diffusing plate and a plurality of light emitting elements, wherein the backlight module comprises the matrix lens structure of any one of claims 1-8, a plurality of light emitting elements are mounted in a matrix form on the back plate, the diffusing plate is mounted on the back plate and is disposed opposite to the light emitting elements, the matrix lens structure is disposed between the diffusing plate and the light emitting elements, the mounting plate abuts against the diffusing plate, and the light incident end of each lens is correspondingly disposed with one of the light emitting elements.
10. A display device, characterized in that the display device comprises a backlight module according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506084.0A CN114690285A (en) | 2022-05-10 | 2022-05-10 | Matrix lens structure, backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210506084.0A CN114690285A (en) | 2022-05-10 | 2022-05-10 | Matrix lens structure, backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114690285A true CN114690285A (en) | 2022-07-01 |
Family
ID=82145167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210506084.0A Pending CN114690285A (en) | 2022-05-10 | 2022-05-10 | Matrix lens structure, backlight module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114690285A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007108786A (en) * | 2006-12-25 | 2007-04-26 | Matsushita Electric Ind Co Ltd | Display device |
| US20080117360A1 (en) * | 2006-11-21 | 2008-05-22 | Honeywell International Inc. | Lens for increased light distribution uniformity in an LCD backlight |
| CN202419335U (en) * | 2011-10-28 | 2012-09-05 | Tcl光电科技(惠州)有限公司 | Liquid crystal display and direct light-emitting diode (LED) backlight module |
| CN215722784U (en) * | 2021-08-31 | 2022-02-01 | 东莞市安瑟光电科技有限公司 | Optical module and panel lighting lamp |
| CN216362016U (en) * | 2021-12-07 | 2022-04-22 | 伟志光电（深圳）有限公司 | Lens plate for backlight module, light source assembly and backlight module |
-
2022
- 2022-05-10 CN CN202210506084.0A patent/CN114690285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080117360A1 (en) * | 2006-11-21 | 2008-05-22 | Honeywell International Inc. | Lens for increased light distribution uniformity in an LCD backlight |
| JP2007108786A (en) * | 2006-12-25 | 2007-04-26 | Matsushita Electric Ind Co Ltd | Display device |
| CN202419335U (en) * | 2011-10-28 | 2012-09-05 | Tcl光电科技(惠州)有限公司 | Liquid crystal display and direct light-emitting diode (LED) backlight module |
| CN215722784U (en) * | 2021-08-31 | 2022-02-01 | 东莞市安瑟光电科技有限公司 | Optical module and panel lighting lamp |
| CN216362016U (en) * | 2021-12-07 | 2022-04-22 | 伟志光电（深圳）有限公司 | Lens plate for backlight module, light source assembly and backlight module |
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