CN210666263U - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN210666263U CN210666263U CN201921256496.3U CN201921256496U CN210666263U CN 210666263 U CN210666263 U CN 210666263U CN 201921256496 U CN201921256496 U CN 201921256496U CN 210666263 U CN210666263 U CN 210666263U
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- ear
- brightness enhancement
- hanging piece
- enhancement film
- backlight module
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Abstract
The utility model relates to the technical field of panels, in particular to a backlight module, wherein metal sheets are arranged on a first ear hanging piece, a second ear hanging piece and a third ear hanging piece, and the ear hanging pieces mutually laminated with the metal sheets are fixed by utilizing the adsorption force generated between a magnet and the metal sheets, so that an upper light intensifying piece, a lower light intensifying piece and a diffusion piece are indirectly fixed by fixing the ear hanging pieces, and the diaphragm are not easy to move; the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are bent along the same direction, the fact that the ear hanging pieces and the diaphragm are located on the same horizontal plane in the prior art is replaced, the width values of the upper side, the left side and the right side of the backlight module can be further reduced, and therefore the design requirement of a narrow frame is met.
Description
Technical Field
The utility model relates to a panel technical field, in particular to backlight unit.
Background
The development of the display industry 'narrow frame' gradually changes from small size to large and medium size, and the narrow frame is not only required by a mobile phone, but also required by a notebook, a display, a television and the like. However, the development of the narrow bezel is limited, including the Outer Lead Bonding (OLB) region on the glass, the edge width limitation of the backlight unit (BLU), and the like, which all affect the design of the whole large and medium sized "narrow bezel".
At present, the side width size values of the upper, lower, left and right sides of a backlight module of a large and medium-sized television, notebook and other Liquid Crystal Display (LCD for short) Display product are still larger, wherein the influence factor is larger in the design of the fixing mode of a diaphragm in the backlight module, the fixing mode of a hanger is generally adopted at present, but the premise of fixing the hanger is adopted, the size of the hanger of the diaphragm must be increased for ensuring the strength of the whole diaphragm, but the increase of the size of the hanger of the diaphragm brings the increase of the upper, left and right side width values, and the design requirement of a narrow frame is not met. In order to further satisfy the design requirement of "narrow frame" of large and medium size LCD display products, the width values of the upper, left and right sides of the backlight module must be further reduced, and the fixing manner of the whole film must be improved and optimized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the backlight module can improve the mounting precision and stability of the diaphragm.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a backlight module comprises an upper brightness enhancement film, a lower brightness enhancement film, a diffusion film and a magnet, wherein the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film are arranged in parallel, the lower brightness enhancement film is positioned between the upper brightness enhancement film and the diffusion film, and two opposite sides of the lower brightness enhancement film are respectively contacted with the upper brightness enhancement film and the diffusion film;
the edge of the upper brightness enhancement sheet extends outwards to form a first ear-hanging piece, the edge of the lower brightness enhancement sheet extends outwards to form a second ear-hanging piece, the diffusion sheet extends outwards to form a third ear-hanging piece, the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece are bent along the same direction, metal sheets are arranged on the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece, and the magnet is arranged opposite to the metal sheets and adsorbs the metal sheets so that the upper brightness enhancement sheet, the lower brightness enhancement sheet and the diffusion sheet are fixed.
The beneficial effects of the utility model reside in that:
the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are all provided with metal sheets, and the ear hanging pieces which are mutually attached to the metal sheets are fixed by utilizing the adsorption force generated between the magnets and the metal sheets, so that the upper light intensifying sheet, the lower light intensifying sheet and the diffusion sheet are fixed indirectly by fixing the ear hanging pieces, and the diaphragm are not easy to move; the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are bent along the same direction, so that the situation that the ear hanging pieces and the diaphragm are in the same horizontal plane in the prior art is replaced, the width values of the upper, the left and the right sides in the backlight module can be further reduced, and the design requirement of a narrow frame is met; the backlight unit of this scheme design can be fixed the diaphragm when realizing "narrow frame", improves the positioning accuracy and the stability of whole diaphragm, and the diaphragm is fixed to the adsorption affinity that produces between this scheme utilization and the sheetmetal, need not carry out repetitious processing and change the convenience to the diaphragm, reduces the processing procedure degree of difficulty.
Drawings
Fig. 1 is a schematic structural diagram of a backlight module according to the present invention;
fig. 2 is a schematic structural diagram of a backlight module according to the present invention;
fig. 3 is a schematic structural view of a backlight module according to the present invention;
fig. 4 is a schematic structural diagram of a backlight module according to the present invention;
fig. 5 is a schematic structural view of a backlight module according to the present invention;
fig. 6 is a schematic structural view of a backlight module according to the present invention;
fig. 7 is a schematic structural diagram of a backlight module according to the present invention;
fig. 8 is a schematic structural view of a backlight module according to the present invention;
fig. 9 is a schematic structural view of a backlight module according to the present invention;
fig. 10 is a schematic structural view of a backlight module according to the present invention;
fig. 11 is a schematic structural view of a backlight module according to the present invention;
description of reference numerals:
1. an upper brightness enhancement film; 101. a first ear piece;
2. a lower brightness enhancement film; 201. a second ear piece;
3. a diffusion sheet; 301. a third ear piece;
4. a light guide plate; 5. a metal sheet; 6. a rubber frame; 7. and a magnet.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
The utility model discloses the most crucial design lies in: all set up the sheetmetal on first hangers spare, second hangers spare and third hangers spare, utilize the adsorption affinity that produces between magnet and the sheetmetal for the hangers spare of laminating each other with the sheetmetal is fixed, thereby is fixed with last piece of polishing, lower piece of polishing and diffusion piece three indirectly through fixed hangers spare, makes between diaphragm and the diaphragm difficult removal.
Referring to fig. 1, the present invention provides a technical solution:
a backlight module comprises an upper brightness enhancement film, a lower brightness enhancement film, a diffusion film and a magnet, wherein the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film are arranged in parallel, the lower brightness enhancement film is positioned between the upper brightness enhancement film and the diffusion film, and two opposite sides of the lower brightness enhancement film are respectively contacted with the upper brightness enhancement film and the diffusion film;
the edge of the upper brightness enhancement sheet extends outwards to form a first ear-hanging piece, the edge of the lower brightness enhancement sheet extends outwards to form a second ear-hanging piece, the diffusion sheet extends outwards to form a third ear-hanging piece, the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece are bent along the same direction, metal sheets are arranged on the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece, and the magnet is arranged opposite to the metal sheets and adsorbs the metal sheets so that the upper brightness enhancement sheet, the lower brightness enhancement sheet and the diffusion sheet are fixed.
From the above description, the beneficial effects of the present invention are:
the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are all provided with metal sheets, and the ear hanging pieces which are mutually attached to the metal sheets are fixed by utilizing the adsorption force generated between the magnets and the metal sheets, so that the upper light intensifying sheet, the lower light intensifying sheet and the diffusion sheet are fixed indirectly by fixing the ear hanging pieces, and the diaphragm are not easy to move; the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are bent along the same direction, so that the situation that the ear hanging pieces and the diaphragm are in the same horizontal plane in the prior art is replaced, the width values of the upper, the left and the right sides in the backlight module can be further reduced, and the design requirement of a narrow frame is met; the backlight unit of this scheme design can be fixed the diaphragm when realizing "narrow frame", improves the positioning accuracy and the stability of whole diaphragm, and the diaphragm is fixed to the adsorption affinity that produces between this scheme utilization and the sheetmetal, need not carry out repetitious processing and change the convenience to the diaphragm, reduces the processing procedure degree of difficulty.
Furthermore, the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are bent in the same direction by 90 degrees.
From the above description, it can be seen that the best effect of "narrow bezel" is achieved when the bending angle in the same direction is 90 °.
Furthermore, the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are sequentially arranged in a staggered mode in the extending direction perpendicular to the upper brightness enhancement piece, and a distance is arranged between every two adjacent ear hanging pieces.
It can be known from the above description that the extending direction of the brightness enhancement film on the perpendicular to is set up with first ear piece, second ear piece and third ear piece in proper order in a staggered manner, can greatly reduce backlight unit's width of limit to further improve the effect of "narrow frame" and realize that the diaphragm is fixed.
Further, all be equipped with first breach on the border of first hangers piece, the border of second hangers piece and the border of third hangers piece, be equipped with the second breach on the border of sheetmetal, the second breach with first breach sets up relatively and communicates with each other, be equipped with the bellying on the magnet, the shape of the vertical cross-section of bellying is right trapezoid, the bellying is worn to locate in first breach and the second breach.
It can be known from the above description that the notch on the lug is directly inserted into the protrusion on the magnet, and the position of the lug is indirectly fixed by the adsorption of the magnet to the metal sheet, so as to achieve the accurate positioning and installation of the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film.
Furthermore, the central position of first hangers piece, the central position of second hangers piece and the central position of third hangers piece all are equipped with first through-hole, first through-hole is the square, be equipped with the second through-hole on the metal sheet, the second through-hole is the square, the second through-hole with first through-hole sets up relatively and communicates with each other, be equipped with the bellying on the magnet, the vertical cross-section of bellying is semi-circular, the bellying is worn to locate in first through-hole and the second through-hole.
According to the description, in the process of installing the membrane, the bulge part is directly inserted into the through hole on the hanging lug through the bulge part on the magnet, and the position of the hanging lug is indirectly fixed by utilizing the adsorption of the magnet on the metal sheet, so that the accurate positioning and installation of the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film can be improved, and the membrane can be more firmly fixed in the process of moving or turning over.
Furthermore, the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are sequentially arranged along the extending direction of the upper brightness enhancement film.
The light guide plate is arranged on the surface of the light guide plate, the upper brightness enhancement sheet, the lower brightness enhancement sheet and the diffusion sheet are sequentially arranged on the surface of the light guide plate, the light guide plate is in contact with one side face, far away from the lower brightness enhancement sheet, of the diffusion sheet, and the magnet is fixedly arranged on the periphery of the light guide plate.
It can be known from the above description that the magnet is adhered to the light guide plate and disposed in the redundant space between the upper brightness enhancement film, the lower brightness enhancement film, and the diffusion film and the light guide plate, and each film is fixed in a certain space, without affecting the design of the edge width of the whole backlight module.
The rubber frame is arranged on the periphery of the upper brightness enhancement sheet, the lower brightness enhancement sheet and the diffusion sheet, an accommodating groove is formed in the rubber frame, and the magnet is fixedly arranged in the accommodating groove.
It can be known from the above description that in setting up the holding tank of gluing the frame with magnet, can not influence backlight unit's margin value.
Referring to fig. 1 to 11, a first embodiment of the present invention is:
a backlight module comprises an upper brightness enhancement film 1, a lower brightness enhancement film 2, a diffusion film 3 and a magnet 7, wherein the upper brightness enhancement film 1, the lower brightness enhancement film 2 and the diffusion film 3 are arranged in parallel, the lower brightness enhancement film 2 is positioned between the upper brightness enhancement film 1 and the diffusion film 3, and two opposite sides of the lower brightness enhancement film 2 are respectively contacted with the upper brightness enhancement film 1 and the diffusion film 3;
the edge of the upper brightness enhancement film 1 extends outwards to form a first ear-hanging piece 101, the edge of the lower brightness enhancement film 2 extends outwards to form a second ear-hanging piece 201, the diffusion film 3 extends outwards to form a third ear-hanging piece 301, the first ear-hanging piece 101, the second ear-hanging piece 201 and the third ear-hanging piece 301 are bent along the same direction, metal sheets 5 are arranged on the first ear-hanging piece 101, the second ear-hanging piece 201 and the third ear-hanging piece 301, the magnet 7 is opposite to the metal sheets 5, and the magnet 7 adsorbs the metal sheets 5 to fix the upper brightness enhancement film 1, the lower brightness enhancement film 2 and the diffusion film 3.
The first ear hanging piece 101, the second ear hanging piece 201 and the third ear hanging piece 301 are bent in the same direction by an angle of 90 degrees.
Referring to fig. 1 to 3, the first ear hanging pieces 101, the second ear hanging pieces 201, and the third ear hanging pieces 301 are sequentially arranged in a staggered manner along a direction perpendicular to the extending direction of the upper brightness enhancement film 1, and a distance is provided between two adjacent ear hanging pieces, wherein the distance is 0.1-0.3mm, and preferably 0.1 mm.
Referring to fig. 4 and 5, in practical operation, the first ear hanging piece 101, the second ear hanging piece 201, and the third ear hanging piece 301 may also be sequentially arranged along the extending direction of the upper brightness enhancement film 1, and the edge width of the backlight module adopting this manner is relatively large, so that the effect of realizing a "narrow frame" by adopting this manner is poorer than that of a design manner in which the first ear hanging piece 101, the second ear hanging piece 201, and the third ear hanging piece 301 are sequentially and alternately arranged along the extending direction perpendicular to the upper brightness enhancement film 1.
Referring to fig. 6 and 7, all be equipped with first breach on the border of first hangers 101, the border of second hangers 201 and the border of third hangers 301, be equipped with the second breach on the border of sheetmetal 5, the second breach with first breach sets up relatively and communicates with each other, be equipped with the bellying on magnet 7, the vertical cross-sectional shape of bellying is right trapezoid, the bellying is worn to locate in first breach and the second breach.
The backlight module further comprises a light guide plate 4, a rubber frame 6 and the light guide plate 4, wherein the upper light enhancement sheet 1, the lower light enhancement sheet 2 and the diffusion sheet 3 are sequentially arranged on the surface of the light guide plate 4, the light guide plate 4 is in contact with one side face, far away from the lower light enhancement sheet 2, of the diffusion sheet 3, and the rubber frame 6 is arranged on the periphery of the upper light enhancement sheet 1, the lower light enhancement sheet 2 and the diffusion sheet 3.
In practical applications, the magnet 7 may be fixed to the light guide plate 4 (see fig. 10 and 11) or a receiving groove may be formed in the rubber frame 6, and the magnet 7 is fixed to the receiving groove, which is preferable to arrange the magnet 7 on the light guide plate 4.
Referring to fig. 8 and 9, a second embodiment of the present invention is:
the difference between the second embodiment and the first embodiment is that the central position of the first ear hanging piece 101, the central position of the second ear hanging piece 201 and the central position of the third ear hanging piece 301 are respectively provided with a first through hole, the first through hole is square, the metal sheet 5 is provided with a second through hole, the second through hole is square, the second through hole and the first through hole are oppositely arranged and communicated, the magnet 7 is provided with a convex part, the vertical section of the convex part is semicircular, and the convex part is arranged in the first through hole and the second through hole in a penetrating manner.
To sum up, the utility model provides a backlight module, all set up the sheetmetal on first hangers spare, second hangers spare and third hangers spare, utilize the adsorption affinity that produces between magnet and the sheetmetal, make the hangers spare of laminating each other with the sheetmetal fix, thus fix upper brightness enhancement film, lower brightness enhancement film and diffusion piece three indirectly through fixing hangers spare, make difficult for moving between diaphragm and the diaphragm; the first ear hanging piece, the second ear hanging piece and the third ear hanging piece are bent along the same direction, so that the situation that the ear hanging pieces and the diaphragm are in the same horizontal plane in the prior art is replaced, the width values of the upper, the left and the right sides in the backlight module can be further reduced, and the design requirement of a narrow frame is met; the backlight unit of this scheme design can be fixed the diaphragm when realizing "narrow frame", improves the positioning accuracy and the stability of whole diaphragm, and the diaphragm is fixed to the adsorption affinity that produces between this scheme utilization and the sheetmetal, need not carry out repetitious processing and change the convenience to the diaphragm, reduces the processing procedure degree of difficulty.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (8)
1. A backlight module is characterized by comprising an upper brightness enhancement film, a lower brightness enhancement film, a diffusion film and a magnet, wherein the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film are arranged in parallel, the lower brightness enhancement film is positioned between the upper brightness enhancement film and the diffusion film, and two opposite sides of the lower brightness enhancement film are respectively contacted with the upper brightness enhancement film and the diffusion film;
the edge of the upper brightness enhancement sheet extends outwards to form a first ear-hanging piece, the edge of the lower brightness enhancement sheet extends outwards to form a second ear-hanging piece, the diffusion sheet extends outwards to form a third ear-hanging piece, the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece are bent along the same direction, metal sheets are arranged on the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece, and the magnet is arranged opposite to the metal sheets and adsorbs the metal sheets so that the upper brightness enhancement sheet, the lower brightness enhancement sheet and the diffusion sheet are fixed.
2. The backlight module as claimed in claim 1, wherein the first, second and third ear-hanging members are bent in the same direction by an angle of 90 °.
3. The backlight module as claimed in claim 1, wherein the first ear hanging pieces, the second ear hanging pieces and the third ear hanging pieces are sequentially arranged in a staggered manner along a direction perpendicular to the extending direction of the upper brightness enhancement film, and a space is provided between two adjacent ear hanging pieces.
4. The backlight module according to claim 3, wherein the edges of the first ear hanging pieces, the second ear hanging pieces and the third ear hanging pieces are respectively provided with a first notch, the edge of the metal sheet is provided with a second notch, the second notch is opposite to and communicated with the first notch, the magnet is provided with a protrusion, the vertical section of the protrusion is in a right trapezoid shape, and the protrusion is inserted into the first notch and the second notch.
5. The backlight module according to claim 3, wherein the first through holes are disposed at a center of the first ear hanging member, a center of the second ear hanging member and a center of the third ear hanging member, the first through holes are square, the metal plate is provided with second through holes, the second through holes are square, the second through holes are opposite to and communicated with the first through holes, the magnet is provided with protrusions, vertical cross sections of the protrusions are semicircular, and the protrusions are inserted into the first through holes and the second through holes.
6. The backlight module as claimed in claim 1, wherein the first ear-hanging piece, the second ear-hanging piece and the third ear-hanging piece are sequentially arranged along the extending direction of the upper brightness enhancement film.
7. The backlight module as claimed in any one of claims 1 to 6, further comprising a light guide plate, wherein the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film are sequentially disposed on the surface of the light guide plate, the light guide plate contacts with a side surface of the diffusion film away from the lower brightness enhancement film, and the magnet is fixedly disposed on the periphery of the light guide plate.
8. The backlight module according to any one of claims 1 to 6, further comprising a plastic frame, wherein the plastic frame is disposed at the periphery of the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film, the plastic frame is provided with an accommodating groove, and the magnet is fixedly disposed in the accommodating groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921256496.3U CN210666263U (en) | 2019-08-05 | 2019-08-05 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921256496.3U CN210666263U (en) | 2019-08-05 | 2019-08-05 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210666263U true CN210666263U (en) | 2020-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921256496.3U Active CN210666263U (en) | 2019-08-05 | 2019-08-05 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210666263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471220A (en) * | 2019-08-05 | 2019-11-19 | 福建华佳彩有限公司 | A kind of backlight module |
-
2019
- 2019-08-05 CN CN201921256496.3U patent/CN210666263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471220A (en) * | 2019-08-05 | 2019-11-19 | 福建华佳彩有限公司 | A kind of backlight module |
| CN110471220B (en) * | 2019-08-05 | 2024-04-12 | 福建华佳彩有限公司 | Backlight module |
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