CN109782491B - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN109782491B CN109782491B CN201910250348.9A CN201910250348A CN109782491B CN 109782491 B CN109782491 B CN 109782491B CN 201910250348 A CN201910250348 A CN 201910250348A CN 109782491 B CN109782491 B CN 109782491B
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Abstract
The invention relates to the technical field of display, and discloses a backlight module and a display device. The backlight module comprises a rubber frame, a light bar and a light guide plate, wherein the light bar is arranged at the end part of the backlight module and is arranged adjacent to the light guide plate, the light emitting surface of the light bar is intersected with the light emitting surface of the light guide plate, the rubber frame comprises a light bar mounting groove, the light bar is fixed in the light bar mounting groove, and the light bar mounting groove is positioned on one side of the light bar, which is far away from the light guide plate; the lamp strip has first lateral wall, and the lamp strip mounting groove has the second lateral wall, and first lateral wall is adjacent with the second lateral wall, and the first lateral wall of lamp strip extending direction's at least one end has first waterproof vapour structure, and first waterproof vapour structure includes arch and/or recess, and the second lateral wall has the second waterproof vapour structure with first waterproof vapour structure adaptation. The embodiment of the application can reduce the probability that water vapor enters the interior of the backlight module, and improves the reliability of the backlight module product.
Description
Technical Field
The invention relates to the technical field of display, in particular to a backlight module and a display device.
Background
At present, a side-in type backlight module is often used in a display module of a mobile terminal such as a mobile phone, and a Light source of the side-in type backlight module generally uses an LED (Light Emitting Diode) Light bar, the LED Light bar is mounted on a rubber frame of the backlight module during use, the rubber frame generally has a Light bar mounting groove for positioning and fixing the Light bar, and a bonding area of a Light shielding tape can be increased on a groove wall of the Light bar mounting groove. As shown in fig. 1, in the prior art, the width of the rubber frame 1 of the backlight module is large, a complete light bar installation groove 11 is formed at the edge of the display module, the light bar 2 is fixed in the light bar installation groove 11 and fixed by the shading adhesive tape 6, and the width of the rubber frame 1 of the scheme is large, so that the width of the whole frame of the backlight module is large.
Along with the development of full-screen cell-phone, the narrow frame to backlight unit requires more and more highly, at the in-process that realizes the narrow frame, the degree that backlight unit reduces the frame size has then been restricted in the setting of the cell wall of lamp strip mounting groove, if do not have the cell wall of lamp strip mounting groove, then the unable sealed lamp strip of shading sticky tape and the clearance between the lamp strip storage tank of gluey frame, then lead to backlight unit to get into steam easily, especially in reliability test, backlight unit gets into the probability of steam higher.
Disclosure of Invention
The invention provides a backlight module and a display device, which can reduce the probability of water vapor entering the backlight module and improve the reliability of the backlight module product.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a backlight module, is including gluing frame, lamp strip and light guide plate, wherein:
the light bar is arranged at the end part of the backlight module and is adjacent to the light guide plate, the light emitting surface of the light bar is intersected with the light emitting surface of the light guide plate, the rubber frame comprises a light bar mounting groove, the light bar is fixed in the light bar mounting groove, and the light bar mounting groove is positioned on one side of the light bar, which is far away from the light guide plate;
the lamp strip has first lateral wall, the lamp strip mounting groove has the second lateral wall, first lateral wall with the second lateral wall is adjacent, the first lateral wall of the at least one end of lamp strip extending direction has first waterproof vapour structure, first waterproof vapour structure includes arch and/or recess, the second lateral wall have with the second waterproof vapour structure of first waterproof vapour structure adaptation.
In a further technical scheme, the first side walls at the two ends of the extending direction of the lamp strip are provided with a first waterproof vapor structure.
In a specific technical scheme, the first waterproof vapor structure comprises a protrusion, and the second waterproof vapor structure comprises a groove matched with the protrusion.
In a specific technical scheme, the first waterproof vapor structure comprises a groove, and the second waterproof vapor structure comprises a protrusion matched with the groove.
In a specific technical scheme, the first waterproof vapor structure comprises a structure with a protrusion and a groove at intervals, and the second waterproof vapor structure comprises a structure with a protrusion and a groove at intervals, wherein the structure is matched with the structure with the protrusion and the groove at intervals.
In a further technical scheme, the first waterproof vapor structure is provided with a plurality of protrusions, and the second waterproof vapor structure is provided with grooves matched with the protrusions one by one.
In a specific technical scheme, the distance between any two adjacent protrusions in the plurality of protrusions is the same.
In an optional technical scheme, the protrusions include columnar protrusions, saw-toothed protrusions, mushroom-shaped protrusions or wavy protrusions.
In an optional technical scheme, theThe distance between the first side wall and the second side wall is L 1 L is not more than 0.1mm 1 Less than or equal to 0.15 mm; the height of the protrusion is L 2 L is not less than 0.5mm 2 ≤0.7mm。
In a further technical scheme, backlight unit still includes the metal frame, it is fixed in to glue the frame the metal frame, the one side that the light guide plate was kept away from to the lamp strip mounting groove has the breach, the breach is followed the extending direction of lamp strip extends, the lamp strip is at least partly followed the breach stretches out and is fixed in the metal frame.
The application also provides a display device, which comprises the backlight module in any technical scheme and a display panel arranged opposite to the backlight module.
In this application embodiment, the first lateral wall of lamp strip is adjacent with the second lateral wall of lamp strip mounting groove, has the clearance between the two, and first lateral wall has first waterproof vapour structure, and the second lateral wall has second waterproof vapour structure, first waterproof vapour structure and second waterproof vapour structure adaptation, and both are protruding cooperation with the recess. Thereby can be at the formation clearance of buckling between first lateral wall and the second lateral wall, steam enters into backlight unit's inside if need follow above-mentioned clearance, on the one hand, the route that steam got into has increased, thereby steam is difficult to enter into backlight unit's inside, on the other hand, the route that steam got into has a plurality of structures of buckling, every structure of buckling can all play certain effect that blocks steam, therefore, the degree of difficulty that steam got into has also increased, to sum up, this application embodiment can reduce steam and enter into the inside probability of backlight unit, the reliability of backlight unit product has been improved.
Drawings
Fig. 1 is a partial sectional view of a backlight module according to an embodiment of the prior art;
fig. 2 is a schematic structural diagram of a backlight module according to an embodiment of the invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at M;
FIG. 4 is a schematic view of a portion of a backlight module according to another embodiment of the present invention;
FIG. 5 is a schematic view of a portion of a backlight module according to another embodiment of the present invention;
FIG. 6 is a schematic view of a portion of a backlight module according to another embodiment of the present invention;
FIG. 7 is a schematic view of a portion of a backlight module according to another embodiment of the present invention;
FIG. 8 is a schematic view of a portion of a backlight module according to another embodiment of the present invention;
FIG. 9 is a cross-sectional view of a portion of a backlight module according to an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of the mobile terminal provided in this embodiment.
Reference numerals are as follows:
1-glue frame; 11-a light bar mounting groove;
111-a second sidewall; 1111-a second moisture resistant structure;
2-a light bar; 21-a first side wall;
211-a first moisture resistant structure; 212-first portion;
213-second part; 3-a light guide plate;
4-a metal frame; 41-a bottom plate;
42-side plate; 5-a notch;
6-shading adhesive tape; 10-a backlight module;
20-lower polarizer; 30-a display panel;
31-an array substrate; 32-a color film substrate;
33-a liquid crystal layer; 40-an upper polarizer;
50-a cover plate; 100-a display device;
200-mobile terminal.
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.
The embodiment of the invention firstly provides a backlight module, referring to fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the backlight module provided in the embodiment of the invention; fig. 3 is a partially enlarged view of the portion M in fig. 2. Specifically, the backlight module comprises a rubber frame 1, a light bar 2 and a light guide plate 3, wherein the light bar 2 is arranged at the end part of the backlight module and is arranged adjacent to the light guide plate 3, the light emitting surface of the light bar 2 is intersected with the light emitting surface of the light guide plate 3, the rubber frame 1 comprises a light bar mounting groove 11, the light bar 2 is fixed in the light bar mounting groove 11, and the light bar mounting groove 11 is positioned at one side of the light bar 2 away from the light guide plate 3; light bar 2 has first lateral wall 21, and light bar mounting groove 11 has second lateral wall 111, and first lateral wall 21 is adjacent with second lateral wall 111, and the first lateral wall 21 of 2 at least one ends of extending direction of light bar has first waterproof vapour structure 211, and first waterproof vapour structure 211 can be the arch, also can be the recess, or be the cooperation structure of arch and recess, and second lateral wall 111 has the second waterproof vapour structure 1111 with first waterproof vapour structure 211 adaptation.
In a specific embodiment, when the light bar 2 of the backlight module is assembled, one side close to the rubber frame 1 is erected in the light bar installation groove 11 of the rubber frame 1, and the top of the light bar 2 is fixed by the shading adhesive tape 6 (a part of the shading adhesive tape is shown in the figure), so that the light bar 2 is installed. However, for the convenience of installation, a certain gap is required between the side wall of the light bar 2 and the side wall of the light bar installation groove 11. In addition, carry out reliability testing to the product, especially during high temperature test, and backlight unit is at the during operation, the condition of thermal expansion all probably appears in light guide plate 3 and lamp strip 2, structural interference that probably appears when the subassembly thermal expansion in order to reduce backlight unit, therefore, also need have certain clearance between the lateral wall of lamp strip 2 and the lateral wall of lamp strip mounting groove 11, steam then can enter into backlight unit inside along this clearance, lead to the subassembly to appear the defect of the fold that absorbs moisture among the backlight unit, furthermore, the white group of steam still can appear, lead to the display effect relatively poor.
In the embodiment of the present application, the first sidewall 21 of the light bar 2 is adjacent to the second sidewall 111 of the light bar mounting groove 11, a gap is formed between the first sidewall 21 and the second sidewall 111, the first sidewall 21 has a first vapor-proof structure 211, the second sidewall 111 has a second vapor-proof structure 1111, and the first vapor-proof structure 211 and the second vapor-proof structure 1111 are adapted to each other and are matching structures of protrusions and grooves. Therefore, a bending gap can be formed between the first side wall 21 and the second side wall 111, and water vapor enters the backlight module from the gap if necessary; on the other hand, the route that steam got into has a plurality of structures of buckling, after steam entered into the clearance, enter the certain distance along a direction, then meet the barricade, get into to another direction again, after the certain distance, meet the barricade again, analogize with this, in this embodiment, steam marchs the in-process in above-mentioned clearance and constantly meets the barricade, whenever meets a barricade, this barricade just can play certain effect that blocks steam, consequently, the degree of difficulty that steam got into has also increased, to sum up, this application embodiment can reduce the probability that steam enters into backlight unit inside, the reliability of backlight unit product has been improved.
It should be noted that, in the embodiment of the present application, the "extending direction of the light bar 2" is mentioned, because under the condition that the light emitting surface of the light bar 2 of the backlight module is intersected with the light emitting surface of the light guide plate 3, that is, when the backlight module is a side-in type backlight module, the light bar 2 is in a strip shape, that is, the dimension along one direction of the light bar 2 is far greater than the dimensions along the other two directions, the direction with the greater dimension is the extending direction of the light bar 2, specifically, referring to fig. 2, the a direction is the extending direction of the light bar 2 in the present application.
In addition, in the present application, the light emitting surface of the light bar 2 intersects with the light emitting surface of the light guide plate 3, that is, the light emitting surface of the light bar 2 is not parallel to the light emitting surface of the light guide plate 3, and the backlight module is a side-entry backlight module, in a more specific embodiment, the light emitting surface of the light bar 2 may be perpendicular to the light emitting surface of the light guide plate 3.
In one embodiment, the first side wall 21 of one end of the light bar 2 in the extending direction has a first waterproof structure 211 to improve the waterproof effect of the backlight module.
In another specific embodiment, both ends of the extending direction of the light bar 2 are provided with the first waterproof vapor structures 211, and in this embodiment, the vapor at both ends of the extending direction of the light bar 2 are difficult to enter, so that the waterproof vapor effect of the backlight module is better.
In the specific embodiment, "two ends" of the extending direction of the light bar 2 should be understood widely, and two sides of the center line of the extending direction of the light bar 2 can be regarded as two ends of the extending square of the light bar 2. As shown in fig. 3, the end of the light bar 2 in the extending direction includes two intersecting portions, namely a first portion 212 parallel to the extending direction of the light bar 2 and a second portion 213 intersecting the extending direction of the light bar 2, and both the first portion 212 and the second portion 213 may have the first moisture-proof structure 211, or only one of the first portion 212 and the second portion 213 may have the moisture-proof structure.
Referring to fig. 4, fig. 4 is a schematic view of a partial structure of a backlight module according to another embodiment of the present invention. In a specific embodiment, the first vapor proof structure 211 comprises a protrusion and the second vapor proof structure 1111 comprises a groove adapted to fit the protrusion.
In this embodiment, a protrusion structure is formed on the contour of the first side wall 21 of the light bar 2, and a groove structure is formed on the contour of the second side wall 111 of the light bar 2 mounting groove 11 of the rubber frame 1, so as to form the first waterproof structure 211 and the second waterproof structure 1111 that are adapted to each other. In this embodiment, lamp strip 2 includes lamp strip body and arch, and in this embodiment, can keep the overall arrangement of lamp strip 2 among the prior art, only need additionally make protruding can, and need not to change the structure of lamp strip body, especially the wiring overall arrangement on the lamp strip circuit board of lamp strip 2, also need not to change, and the design process of lamp strip 2 is comparatively simple.
With continued reference to fig. 3, in another embodiment, the first vapor barrier 211 includes a groove and the second vapor barrier 1111 includes a protrusion matching with the groove.
In this embodiment, a groove structure is formed on the contour of the first side wall 21 of the light bar 2, and a protrusion structure is formed on the contour of the second side wall 111 of the light bar mounting groove 11 of the rubber frame 1, so as to form the first waterproof vapor structure 211 and the second waterproof vapor structure 1111 that are adapted to each other. In this embodiment, the second side wall 111 of the light bar installation groove 11 is provided with a protrusion, so that the groove wall of the light bar installation groove 11 can be made narrower, which is beneficial to realizing a narrow frame of the display device.
Referring to fig. 5, fig. 5 is a schematic view of a partial structure of a backlight module according to another embodiment of the present invention. In yet another specific embodiment, the protrusion and groove spacing structure, the second vapor barrier 1111 comprises a groove and protrusion spacing structure that mates with the protrusion and groove spacing structure.
In this embodiment, a structure with protrusions and grooves arranged at intervals is manufactured on the contour of the first side wall 21 of the light bar 2, and a structure with grooves and protrusions is manufactured on the contour of the second side wall 111 of the light bar mounting groove 11 of the rubber frame 1, specifically, the protrusions on the contour of the first side wall 21 are adapted to the grooves on the contour of the second side wall 111, and the grooves on the contour of the first side wall 21 are adapted to the protrusions on the contour of the first side wall 21, so as to form a first waterproof vapor structure 211 and a second waterproof vapor structure 1111 that are adapted to each other. In this embodiment, in the limited space of the first sidewall 21 and the second sidewall 111, a far-away moisture path can be made, taking a path formed by a set of protrusions and grooves on the contour of the first sidewall 21 of the light bar 2 as an example, the path includes a portion protruding out of the contour of the first sidewall 21, and since the groove is formed adjacent to the protrusion, the path also includes a portion recessed into the contour of the first sidewall 21, and therefore, the path of the moisture formed by each adjacent protrusion and groove is large, so that the path of the moisture entering can be increased, and the moisture-proof effect of the backlight module can be improved.
It is worth to be noted that the groove and the protrusion are based on the original contour of the structure, the portion beyond the original contour is the protrusion, and the portion below the original contour is the groove. For example, the first waterproof vapor structure has a protrusion, and then the protrusion structure is manufactured on the original profile of the first side wall of the light bar, so that the body structure of the original light bar is unchanged, and only the protrusion structure is added, so that the description is different here.
In a specific embodiment, the first moisture resistant structure 211 has a plurality of protrusions, and the second moisture resistant structure 1111 has grooves adapted to the plurality of protrusions one by one.
In this embodiment, first waterproof vapour structure 211 has a plurality of archs, and then steam gets into the inside path length of backlight unit and has obtained the increase, and steam gets into inside a plurality of structures of buckling that need pass through of backlight unit, and the degree of difficulty is bigger, and consequently, this embodiment has better waterproof vapour effect, has improved the reliability of backlight unit product.
In a further embodiment, the distance between any two adjacent protrusions of the plurality of protrusions is the same. In the embodiment, the plurality of bulges are uniformly distributed, so that the structure is regular in the process of manufacturing the backlight module, the required size data is less, the manufacturing is convenient, and the manufacturing process can be simplified.
In other embodiments, the first moisture resistant structure 211 has a plurality of grooves, and the second moisture resistant structure 1111 has protrusions that fit into the plurality of grooves. Furthermore, the distance between any two adjacent grooves in the plurality of grooves is the same, namely the plurality of grooves are uniformly distributed, and in the process of manufacturing the backlight module, the structure is regular, the required size data is less, the manufacturing is convenient, and the manufacturing process can be simplified.
In another specific embodiment, the first moisture resistant structure 211 has a plurality of protrusions, the protrusions are disposed adjacent to the grooves, and the second moisture resistant structure 1111 has grooves corresponding to the protrusions. Further, the distance between any two adjacent projections in the plurality of projections is the same. In the embodiment, the plurality of bulges are uniformly distributed, so that the structure is regular in the process of manufacturing the backlight module, the required size data is less, the manufacturing is convenient, and the manufacturing process can be simplified.
When the technical scheme of the application is implemented specifically, the shape of the protrusions is not limited, for example, as shown in fig. 3 to 5, the protrusions may be columnar protrusions, as shown in fig. 6, fig. 6 is a schematic view of a part of the structure of the backlight module provided by another embodiment of the invention, the protrusions in the embodiment may be saw-toothed protrusions, and the saw-toothed protrusions are inclined in a direction away from the light guide plate, that is, inclined in a direction toward which water vapor enters, so that the difficulty of entering a path where the saw-toothed protrusions are located is high in a water vapor entering process, and the waterproof effect is favorably improved; as shown in fig. 7, fig. 7 is a schematic view of a partial structure of a backlight module according to another embodiment of the present invention, in which the protrusions may be mushroom-shaped protrusions, and the mushroom-shaped protrusions may form a path with a more complex shape and bend more, so as to increase the difficulty of water vapor entering the backlight module; as shown in fig. 8, fig. 8 is a schematic view of a partial structure of a backlight module according to another embodiment of the present invention, in which the protrusions may be wavy protrusions, and the specific winding size of the wavy protrusions may be designed according to actual size. Of course, in other embodiments, the protrusions may have other shapes, such as regularly shaped protrusions or irregularly shaped protrusions, and the design may be selected according to actual product requirements. It is worth to be noted that, the shape of the mushroom-shaped protrusions is complex, so that the difficulty of water vapor entering the backlight module is increased, and the waterproof effect of the backlight module can be improved.
In a specific embodiment, each first moisture-proof structure 211 may include two to four protrusions or grooves, on one hand, the two to four protrusions or grooves may have a sufficient moisture-proof effect, and on the other hand, the first moisture-proof structure 211 may not be too complex, which is convenient for manufacturing.
In a specific embodiment, the protrusion and the groove are installed in a matching manner, and the protrusion and the groove can be in an interference fit, a transition fit or a clearance fit. When adopting clearance fit between arch and the recess, be convenient for install lamp strip 2, and lamp strip 2 has certain thermal expansion space, is favorable to improving backlight unit's quality.
Referring to fig. 3, in an alternative embodiment, the distance between the first sidewall 21 and the second sidewall 111 is L 1 L is not more than 0.1mm 1 Less than or equal to 0.15 mm; the height of the projection is L 2 L is not less than 0.5mm 2 ≤0.7mm。
In this embodiment, the first side wall21 from the second side wall 111 by a distance L 1 Satisfy above-mentioned condition, then lamp strip 2 and glue and have certain clearance between the lamp strip mounting groove 11 of frame 1, be convenient for install, and reserved sufficient space for the thermal energy of lamp strip 2, it is too big to be unlikely to the clearance again, lead to lamp strip 2 to install unstably, have impurity or steam to enter into backlight unit inside easily, consequently, both can be convenient for install lamp strip 2 and reserve the space for the thermal energy of lamp strip 2, can protect backlight unit again. The values are described such that the clearance between the fitting portions of the projection and the groove satisfies the above relationship. The raised height meets the distance, so that the condition that water vapor enters the interior of the backlight module can be met, the frame of the backlight module cannot be increased, and the narrow frame of the backlight module is favorably realized.
Referring to fig. 2 and 9, fig. 9 is a partial sectional view of a backlight module according to an embodiment of the invention. In a further embodiment, the backlight module further comprises a metal frame 4, the rubber frame 1 is fixed on the metal frame 4, one side, away from the light guide plate 3, of the light bar mounting groove 11 is provided with a notch 5, the notch 5 extends along the extending direction of the light bar 2, and at least part of the light bar 2 extends out of the notch 5 and is fixed on the metal frame 4.
As shown in fig. 9, in an embodiment of the present application, the backlight module includes a metal frame 4 and a rubber frame 1 fixed to the metal frame 4, and specifically, a rubber-iron integrated structure may be formed. The metal frame 4 comprises a bottom plate 41 and a side plate 42, the rubber frame 1 is fixed in an angular space formed by the bottom plate 41 and the side plate 42 of the metal frame 4, one side of the light bar installation groove 11 of the rubber frame 1, which is close to the side plate 42, is provided with a notch 5, namely, the rubber frame 1 is designed into a retaining wall-free structure in the bottom edge area of the backlight module. The lamp strip 2 has a structure matched with the notch 5, and the structure extends out of the notch 5 to be fixed on the side plate 42 of the metal frame 4 in an overlapping mode through the lamp strip mounting groove 11 so as to improve the stability of the fixing structure of the lamp strip. The frame of the backlight module in the embodiment is narrower, which is beneficial to realizing the narrow frame design of the display device.
In the backlight module, the gaps between the first side wall 21 of the light bar 2 and the second side wall 111 of the light bar mounting groove 11 can be exposed on two sides of the notch 5 of the light bar mounting groove 11, so that steam can enter the channel inlet inside the backlight module easily, and the steam can enter the backlight module easily. Adopt the technical scheme of this application, set up first waterproof vapour structure 211 in the one end of lamp strip 2, set up the second waterproof vapour structure 1111 with above-mentioned first waterproof vapour structure 211 adaptation at the second lateral wall 111 of lamp strip mounting groove 11, consequently, can reduce the inside that steam enters into backlight unit. In a further embodiment, the both ends of the extending direction of the lamp strip 2 all have the first waterproof vapor structure 211, and specifically, the lamp strip 2 at the both sides of the notch 5 corresponding to the above-mentioned lamp strip mounting groove 11, the first waterproof vapor structure 211 and the second waterproof vapor structure 1111 that all have the adaptation can be waterproof from the both sides of the backlight module, and therefore, the waterproof effect is better, and the product quality of the backlight module is favorably improved.
As shown in fig. 10, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the invention. The application further provides a display device 100 including the backlight module in any technical scheme of the application, where the display device 100 includes a backlight module 10, a lower polarizer 20, a display panel 30, an upper polarizer 40, and a cover plate 50, which are sequentially stacked, where the display panel 30 further includes an array substrate 31 and a color filter substrate 32 paired with the array substrate 31, and a liquid crystal layer 33 is provided between the array substrate 31 and the color filter substrate 32. The display module 10 has a low possibility of moisture entering, so that the display device 11 has a low probability of moisture entering, and therefore, the reliability of the display device 100 is good.
As shown in fig. 11, fig. 11 is a schematic structural diagram of the mobile terminal provided in this embodiment. The mobile terminal is the mobile terminal 200 comprising the display device 100, the display device 100 of the mobile terminal 200 is not easy to have the condition of water vapor entering, the structural reliability is higher, and the display effect and the service life are better.
In a specific embodiment, the specific type of the mobile terminal is not limited, and the mobile terminal may be any electronic device with a display function, such as a smart watch, a mobile phone, a tablet computer, a notebook computer, an electronic paper book, or a television. The mobile terminal shown in fig. 11 is, for example, a mobile phone.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides a backlight unit which characterized in that, including gluing frame, lamp strip and light guide plate, wherein:
the light bar is arranged at the end part of the backlight module and is adjacent to the light guide plate, the light emitting surface of the light bar is intersected with the light emitting surface of the light guide plate, the rubber frame comprises a light bar mounting groove, the light bar is fixed in the light bar mounting groove, and the light bar mounting groove is positioned on one side, away from the light guide plate, of the light bar;
the lamp strip is provided with a first side wall, the lamp strip installation groove is provided with a second side wall, the first side wall is adjacent to the second side wall, the first side wall of at least one end of the extending direction of the lamp strip is provided with a first waterproof vapor structure, the first waterproof vapor structure comprises a protrusion and a groove, and the second side wall is provided with a second waterproof vapor structure matched with the first waterproof vapor structure;
the protrusions comprise mushroom-shaped protrusions or saw-tooth-shaped protrusions, and the saw-tooth-shaped protrusions incline towards the direction far away from the light guide plate.
2. The backlight module as claimed in claim 1, wherein the first sidewalls at two ends of the extending direction of the light bar have a first moisture-proof structure.
3. The backlight module of claim 1, wherein the first moisture resistant structure comprises a protrusion and the second moisture resistant structure comprises a groove that fits the protrusion.
4. The backlight module of claim 1, wherein the first moisture resistant structure comprises a groove and the second moisture resistant structure comprises a protrusion that mates with the groove.
5. The backlight module of claim 1, wherein the first moisture resistant structure comprises a protrusion-to-recess spacing structure and the second moisture resistant structure comprises a recess-to-protrusion spacing structure that mates with the protrusion-to-recess spacing structure.
6. The backlight module as claimed in claim 1, wherein the first moisture-proof structure has a plurality of protrusions, and the second moisture-proof structure has grooves adapted to the plurality of protrusions one by one.
7. The backlight module according to claim 6, wherein the distance between any two adjacent protrusions of the plurality of protrusions is the same.
8. The backlight module according to any of claims 3-7, wherein the distance between the first sidewall and the second sidewall is L 1 L is not more than 0.1mm 1 Less than or equal to 0.15 mm; the height of the protrusion is L 2 L is not more than 0.5mm 2 ≤0.7mm。
9. The backlight module of claim 1, further comprising a metal frame, wherein the plastic frame is fixed to the metal frame, a side of the light bar installation groove away from the light guide plate has a notch, the notch extends along an extending direction of the light bar, and at least a portion of the light bar extends out of the notch and is fixed to the metal frame.
10. A display device, comprising the backlight module according to any one of claims 1 to 9 and a display panel disposed opposite to the backlight module.
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| CN201910250348.9A CN109782491B (en) | 2019-03-29 | 2019-03-29 | Backlight module and display device |
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| CN201910250348.9A CN109782491B (en) | 2019-03-29 | 2019-03-29 | Backlight module and display device |
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| KR20080034650A (en) * | 2006-10-17 | 2008-04-22 | 엘지.필립스 엘시디 주식회사 | Backlight unit |
| CN202118823U (en) * | 2011-06-07 | 2012-01-18 | 章曙虹 | Connecting element and backlight device |
| CN102395825A (en) * | 2009-04-22 | 2012-03-28 | 索尼公司 | Backlight unit |
| CN102798048A (en) * | 2012-08-15 | 2012-11-28 | 友达光电（苏州）有限公司 | Backlight module |
| CN105182607A (en) * | 2015-10-12 | 2015-12-23 | 武汉华星光电技术有限公司 | Back light module and rubber frame structure thereof |
| CN206369885U (en) * | 2016-12-27 | 2017-08-01 | 昆山龙腾光电有限公司 | Back light module unit structure and liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101064084B1 (en) * | 2010-03-25 | 2011-09-08 | 엘지이노텍 주식회사 | Light emitting device package and fabrication method thereof |
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| KR20080034650A (en) * | 2006-10-17 | 2008-04-22 | 엘지.필립스 엘시디 주식회사 | Backlight unit |
| CN102395825A (en) * | 2009-04-22 | 2012-03-28 | 索尼公司 | Backlight unit |
| CN202118823U (en) * | 2011-06-07 | 2012-01-18 | 章曙虹 | Connecting element and backlight device |
| CN102798048A (en) * | 2012-08-15 | 2012-11-28 | 友达光电（苏州）有限公司 | Backlight module |
| CN105182607A (en) * | 2015-10-12 | 2015-12-23 | 武汉华星光电技术有限公司 | Back light module and rubber frame structure thereof |
| CN206369885U (en) * | 2016-12-27 | 2017-08-01 | 昆山龙腾光电有限公司 | Back light module unit structure and liquid crystal display device |
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| CN109782491A (en) | 2019-05-21 |
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