CN112114396A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN112114396A CN112114396A CN202011123530.7A CN202011123530A CN112114396A CN 112114396 A CN112114396 A CN 112114396A CN 202011123530 A CN202011123530 A CN 202011123530A CN 112114396 A CN112114396 A CN 112114396A
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- optical film
- light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a backlight module and a display device, belongs to the technical field of display, and can at least partially solve the problem that the backlight source of the existing display device is easy to generate abnormal sound due to collision or friction of a Light Guide Plate (LGP) and an optical film. The invention provides a backlight module, comprising: the back plate comprises a bottom plate and a side plate positioned on the periphery of the bottom plate, and the bottom plate and the side plate form an accommodating cavity; the light guide plate is positioned in the accommodating cavity; the plurality of superposed optical film layers are positioned in the accommodating cavity and positioned on one side of the light guide plate far away from the back plate; and the limiting assembly is positioned in the accommodating cavity and used for limiting the position of the light guide plate and the optical film layer relative to the back plate and limiting the relative position among the optical film layers.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a backlight module and a display device.
Background
In recent years, with the continuous development of display technologies, the application range of display devices is also expanding, such as smart phones, smart bracelets, smart televisions, vehicle-mounted displays, and the like. With the heat of the automobile market, the requirements of matching large-screen central control and instrument panels are increasing day by day so as to meet the requirements of people on automobiles. Nowadays, vehicle-mounted touch display gradually moves to multiple forms such as large screen, high definition, narrow frame and the like, especially for electric vehicles.
However, since the vehicle-mounted display is strictly required in the confidence tolerance test and the environment of the electric vehicle is relatively quiet, it is a problem to be solved that noise is generated by collision or friction between the Light Guide Plate (LGP) and the optical film in the vehicle-mounted backlight.
Disclosure of Invention
The invention at least partially solves the problem that the backlight source of the prior display device is easy to generate abnormal sound due to the collision or friction of the Light Guide Plate (LGP) and the optical film, and provides a backlight module which reduces the abnormal sound generated due to the collision or friction of the Light Guide Plate (LGP) and the optical film.
The technical scheme adopted for solving the technical problem of the invention is a backlight module, which comprises: the back plate comprises a bottom plate and a side plate positioned on the periphery of the bottom plate, and the bottom plate and the side plate form an accommodating cavity; the light guide plate is positioned in the accommodating cavity; a plurality of superposed optical film layers positioned in the accommodating cavity and positioned on one side of the light guide plate far away from the back plate; and the limiting assembly is positioned in the accommodating cavity and used for limiting the positions of the light guide plate and the optical film layers relative to the back plate and limiting the relative positions among the optical film layers.
Further preferably, the stopper assembly includes: the first elastic limiting piece is fixedly connected with the optical film layers.
It is further preferred that the first edge of each of the optical film layers has a first notch; at least part of the first elastic limiting piece is positioned in the first gap, so that the optical film layer is fixedly connected with the first elastic limiting piece.
It is further preferable that the length of the first notch of the optical film layer close to the light guide plate is smaller than the length of the first notch of the optical film layer far from the light guide plate, and the length of the first notch is the dimension of the first notch parallel to the first edge; the first elastic limiting part comprises a plurality of bosses which are mutually overlapped, the bosses correspond to the optical film layers one by one, and the shape of each boss is matched with the shape of the corresponding first notch of the optical film layer.
Further preferably, the position limiting assembly further comprises: and the second elastic limiting piece is fixedly connected with the bottom plate of the back plate and is used for limiting the positions of the light guide plate and the optical film layer relative to the back plate.
Further preferably, each of the second elastic stoppers includes: the light guide plate comprises a first part and a second part fixedly connected with the first part, wherein the first part is fixedly connected with the bottom plate, the second part is in contact with the side plate, the first part is positioned between the light guide plate and the bottom plate, and at least part of the second part is positioned between the light guide plate and the side plate;
the second edge of the light guide plate is provided with a second notch, the shape of the second notch of the light guide plate corresponds to the shape of the second part, at least part of the second part is positioned in the second notch of the light guide plate, and the distance from the edge of the second notch to the second part is smaller than the distance from the second edge of the light guide plate to the side plate.
It is further preferable that each of the optical film layers has at least one second notch, the second notch of the optical film layer corresponds to the second notch of the light guide plate, and at least a part of the second portion is located in the second notch of the optical film layer.
Further preferably, the bottom plate of the back plate is in a sheet rectangle shape; the second notch of each optical film layer is located at the second edge of the optical film layer, and the second edge of the optical film layer is opposite to the first edge of the optical film layer.
Further preferably, the number of the second elastic limiting members is two, and the two second elastic limiting members are respectively located at two ends of the second edge of the optical film layer.
It is further preferred that a plurality of the optical film layers include: a lower diffusion sheet, a lower prism sheet, an upper prism sheet, and an upper diffusion sheet.
Further preferably, the present optical module further includes: the middle frame is positioned on one side of the optical film layer, which is far away from the diffusion plate, and is connected with the side plate; the lamp strip, with curb plate fixed connection, and with the income plain noodles of light guide plate corresponds.
The technical scheme adopted for solving the technical problem of the invention is that the display device comprises the backlight module, and the display device is a vehicle-mounted display device.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is an exploded schematic view of a backlight module according to an embodiment of the invention;
FIG. 2 is a schematic view of a partial structure of a backlight module according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a first elastic limiting member of a backlight module according to an embodiment of the invention;
FIG. 4 is a schematic structural diagram of an optical film of a backlight module according to an embodiment of the invention;
fig. 5 is a schematic structural view of a second elastic limiting member of a backlight module according to an embodiment of the invention;
FIG. 6 is a schematic view of a light guide plate of a backlight module according to an embodiment of the present invention;
FIG. 7 is a schematic enlarged view of a backlight module according to an embodiment of the invention;
wherein the reference numerals are: 1. a back plate; 11. a base plate; 12. a side plate; 2. a light guide plate; 3. an optical film layer; 4. a first elastic limiting part; 41. a boss; 51. a first notch; 52. a first edge; 6. a second elastic limiting part; 61. a first portion; 62. a second portion; 71. a second notch; 72. a second edge; 8. and (5) a middle frame.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by like reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale. Moreover, certain well-known elements may not be shown in the figures.
In the following description, numerous specific details of the invention, such as structure, materials, dimensions, processing techniques and techniques of components, are set forth in order to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.
Example 1:
as shown in fig. 1 to 7, the present embodiment provides a backlight module, including:
the back plate 1 comprises a bottom plate 11 and a side plate 12 positioned on the periphery of the bottom plate 11, wherein the bottom plate 11 and the side plate 12 form an accommodating cavity;
the light guide plate 2 is positioned in the accommodating cavity;
a plurality of superposed optical film layers 3 positioned in the accommodating cavity and positioned on one side of the light guide plate 2 far away from the back plate 1;
and the limiting assemblies are positioned in the accommodating cavities and are used for limiting the positions of the light guide plate 2 and the optical film layers 3 relative to the back plate 1 and limiting the relative positions among the plurality of optical film layers 3.
The bottom plate 11 and the side plate 12 of the back plate 1 enclose a box shape with one open side, for example, if the bottom plate 11 is rectangular, the shape of the accommodating cavity formed by the box shape is a rectangular parallelepiped.
In the backlight module, a plurality of optical films 3, a plurality of light guide plates 2, and a plurality of bottom plates 11 of a back plate 1 are sequentially stacked from top to bottom.
The backlight module of this embodiment has spacing subassembly for inject the position of light guide plate 2 and optical film layer 3 relative backplate 1, perhaps be used for inject the relative position between a plurality of optical film layers 3, so that reduce the collision friction between light guide plate 2 and the optical film layer 3, and reduce and inject light guide plate 2, the collision friction between optical film layer 3 and the backplate 1, thereby the abnormal sound that backlight module produced when rocking can significantly reduce, and then improve the user and use display device's that has this backlight module experience and feel.
It should be noted that the backlight module of the present embodiment is more suitable for a vehicle-mounted display device, such as a display device of an electric vehicle.
Preferably, the spacing subassembly includes: the first elastic limiting member 4 is fixedly connected with the plurality of optical film layers 3.
The first elastic limiting member 4 is used to fix the optical films 3, so as to prevent collision or friction between the optical films 3.
Specifically, the first edge 52 of each optical film layer 3 has a first notch 51; at least a portion of the first elastic limiting member 4 is located in the first gap 51, so that the optical film layer 3 is fixedly connected to the first elastic limiting member 4.
All the optical film layers 3 are clamped on the first elastic limiting member 4 through the respective first notches 51, so that the first elastic limiting member 4 fixedly connects the optical film layers 3.
The first elastic limiting member 4 is made of an elastic material, so that the first elastic limiting member 4 has a buffering effect to ensure that the plurality of optical film layers 3 and the light guide plate 2 are not easily damaged. For example, the first elastic limiting member 4 may be a fixing tape, or other suitable member.
The arrangement of the first elastic limiting part 4 changes the originally separated optical films 3 into an integral structure, so as to prevent collision or friction between the optical films 3, and further reduce noise generated by collision or friction between the optical films 3.
Preferably, the length of the first notch 51 of the optical film layer 3 close to the light guide plate 2 is smaller than the length of the first notch 51 of the optical film layer 3 far from the light guide plate 2, and the length of the first notch 51 is the dimension of the first notch 51 on the parallel to the first edge 52; the first elastic limiting member 4 includes a plurality of bosses 41, the plurality of bosses 41 are stacked on one another, the bosses 41 correspond to the optical film layers 3 one by one, and the shape of each boss 41 matches the shape of the corresponding first notch 51 of the optical film layer 3.
If the light guide plate 2 is below the optical film layers 3, the lengths of the first notches 51 of the optical film layers 3 gradually increase from bottom to top; meanwhile, the plurality of bosses 41 of the first elastic limiting member 4 are sequentially enlarged from top to bottom. That is, each optical film layer 3 corresponds to one boss 41, the first notch 51 of the optical film layer 3 is exactly clamped on the corresponding boss 41, and the thickness of the boss 41 is the same as that of the corresponding optical film layer 3.
The structure of the plurality of bosses 41 of the first elastic limiting part 4 can not only ensure that the plurality of optical film layers 3 can be contacted with each other, but also reduce the mutual extrusion among the plurality of optical film layers 3; and at the same time, the optical film layer 3 at the lowest layer can be in close contact with the light guide plate 2.
Preferably, the spacing subassembly still includes: and the at least one second elastic limiting piece 6 is fixedly connected with the bottom plate 11 of the back plate 1 and is used for limiting the positions of the light guide plate 2 and the optical film layer 3 relative to the back plate 1.
The second elastic limiting member 6 is used to prevent collision or friction between the optical film layers 3, the light guide plate 2 and the back plate 1, so as to reduce noise generated by collision or friction between the optical film layers 3, the light guide plate 2 and the back plate 1. Specifically, the second elastic limiting member 6 may be a rubber pad.
Preferably, each second elastic limiting member 6 comprises: a first part 61 and a second part 62 fixedly connected with the first part 61, wherein the first part 61 is fixedly connected with the bottom plate 11, the second part 62 is contacted with the side plate 12, the first part 61 is positioned between the light guide plate 2 and the bottom plate 11, and at least part of the second part 62 is positioned between the light guide plate 2 and the side plate 12;
the second edge 72 of the light guide plate 2 has a second notch 71, the shape of the second notch 71 of the light guide plate 2 corresponds to the shape of the second portion 62, at least a part of the second portion 62 is located in the second notch 71 of the light guide plate 2, and the distance from the edge of the second notch 71 to the second portion 62 is smaller than the distance from the second edge 72 of the light guide plate 2 to the side plate 12.
As shown in fig. 1, 2 and 5, the second elastic limiting member 6 formed by the first portion 61 and the second portion 62 is L-shaped, and has two surfaces respectively contacting with the bottom plate 11 of the back plate 1 and the side plate 12 of the back plate 1, and the second notch 71 of the light guide plate 2 is just clamped on the second portion 62, so that it can be ensured that no collision or friction occurs between the light guide plate 2 and the back plate 1, and abnormal sound generated by collision or friction between the light guide plate 2 and the back plate 1 is reduced.
Specifically, as shown in fig. 7, the shape of the second portion 62 may not be identical to that of the second notch 71 in production, and there is a difference in size between the second portion and the second notch 71, and if the second portion 62 is tightly attached to the side wall of the back plate 1, the size B from the edge of the second notch 71 to the second portion 62 should be smaller than the size C of the edge (hereinafter referred to as the second edge 72) of the light guide plate 2 where the second notch 71 is disposed. Thus, when the edge of the second notch 71 of the light guide plate 2 contacts the second portion 62, the second edge 72 of the light guide plate 2 does not contact the side plate 12 of the rear plate 1, thereby preventing the light guide plate 2 from colliding with or rubbing against the second edge even under severe shaking conditions.
Similarly, as shown in fig. 7, the dimension D from the edge of the second notch 71 to the second portion 62 should be smaller than the dimension E of the edge of the light guide plate 2 where the second notch 71 is disposed, so as to avoid the collision or friction between the light guide plate 2 and the side edge of the light guide plate.
Preferably, each optical film layer 3 has at least one second notch 71, the second notch 71 of the optical film layer 3 corresponds to the second notch 71 of the light guide plate 2, and at least a portion of the second portion 62 is located in the second notch 71 of the optical film layer 3.
That is to say, each optical film layer 3 has a second notch 71 similar to the light guide plate 2, and the principle of the second elastic limiting member 6 for limiting the optical film layer 3 is the same as that for limiting the light guide plate 2, which is not described herein again.
Preferably, the bottom plate 11 of the back plate 1 is in a sheet rectangle shape; the second notch 71 of each optical film 3 is located at a second edge 72 of the optical film 3, the second edge 72 of the optical film 3 being disposed opposite the first edge 52 of the optical film 3.
In this case, for example, one optical film layer 3 is also a sheet rectangle, and the first edge 52 and the second edge 72 are two opposite edges, which is equivalent to the first notch 51 and the second notch 71 on two opposite edges. And the second elastic limiting piece 6 corresponding to the second notch 71 can limit the collision friction between the second edge 72 of the optical film layer 3 and one edge adjacent to the second edge 72 and the side plate 12; the first elastic stopper 4 corresponding to the first notch 51 is located at the first edge 52, so that collision friction between the first edge 52 and the side plate 12 can be reduced.
Therefore, the structural arrangement of the first elastic limiting part 4 and the second elastic limiting part 6 can greatly reduce the collision friction between the optical film layer 3 and the side wall of the back plate 1.
Similarly, the second elastic limiting part 6 has a limiting effect on the light guide plate 2: defining the collision friction between the second edge 72 of the optical film layer 3 and the two edges adjacent to the second edge 72 and the side plate 12.
Preferably, the number of the second elastic limiting members 6 is two, and the two second elastic limiting members are respectively located at two ends of the second edge 72 of the optical film layer 3.
Specifically, when there are two second elastic stoppers 6, collision friction between the second edge 72 of the optical film 3 and the side plate 12 and between two edges adjacent to the second edge 72 can be limited, and noise generated between the optical film 3, the light guide plate 2, and the side wall of the back plate 1 can be further avoided.
In addition, because the first elastic limiting member 4 and the second elastic limiting member 6 are both located at the edge of the optical film layer 3 or the light guide plate 2, and the above limiting principle is combined, the arrangement of the first elastic limiting member 4 and the second elastic limiting member 6 does not occupy a large space, so that the display device formed by the backlight module of this embodiment can realize a narrow frame structure.
Preferably, the plurality of optical film layers 3 includes: a lower diffusion sheet, a lower prism sheet, an upper prism sheet, and an upper diffusion sheet.
Specifically, the plurality of optical film layers 3 are sequentially a lower diffusion sheet, a lower prism sheet, an upper prism sheet, and an upper diffusion sheet from bottom to top.
Preferably, the backlight module of this embodiment further includes: the middle frame 8 is positioned on one side of the optical film layer 3 away from the diffusion plate and is connected with the side plate 12; and the light bar is fixedly connected with the side plate 12 and corresponds to the light incident surface of the light guide plate 2.
The middle frame 8 is used for fixing the light guide plate 2 and the plurality of optical film layers 3 in the accommodating cavity of the back plate 1; the lamp strip is used for providing the light source for the light guide plate 2.
In addition, the upper part of the middle frame 8 is also provided with a foam adhesive tape for buffering the array substrate arranged on the backlight module later. A reflective sheet is further disposed between the light guide plate 2 and the bottom plate 11 of the back plate 1.
Example 2:
the present embodiment provides a display device, including the backlight module in embodiment 1, where the display device is an on-vehicle display device.
The display device of this embodiment has spacing subassembly for inject the position of light guide plate 2 and the relative backplate 1 of optics rete 3, perhaps be used for inject the relative position between a plurality of optics rete 3, so that reduce the collision friction between light guide plate 2 and the optics rete 3, and reduce and inject light guide plate 2, the collision friction between optics rete 3 and the backplate 1, thereby the abnormal sound that backlight unit produced when rocking can significantly reduce, and then improve the user and use display device's that has this backlight unit experience and feel.
Specifically, the display device can be any product or component with a display function, such as a liquid crystal display panel, electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (12)
1. A backlight module, comprising:
the back plate comprises a bottom plate and a side plate positioned on the periphery of the bottom plate, and the bottom plate and the side plate form an accommodating cavity;
the light guide plate is positioned in the accommodating cavity;
a plurality of superposed optical film layers positioned in the accommodating cavity and positioned on one side of the light guide plate far away from the back plate;
and the limiting assembly is positioned in the accommodating cavity and used for limiting the positions of the light guide plate and the optical film layers relative to the back plate and limiting the relative positions among the optical film layers.
2. A backlight module according to claim 1, wherein the position limiting member comprises:
the first elastic limiting piece is fixedly connected with the optical film layers.
3. The backlight module as claimed in claim 2, wherein the first edge of each optical film layer has a first notch;
at least part of the first elastic limiting piece is positioned in the first gap, so that the optical film layer is fixedly connected with the first elastic limiting piece.
4. The backlight module according to claim 3, wherein the length of the first notch of the optical film layer close to the light guide plate is smaller than the length of the first notch of the optical film layer far from the light guide plate, and the length of the first notch is the dimension of the first notch parallel to the first edge;
the first elastic limiting part comprises a plurality of bosses which are mutually overlapped, the bosses correspond to the optical film layers one by one, and the shape of each boss is matched with the shape of the corresponding first notch of the optical film layer.
5. A backlight module according to claim 3, wherein the position limiting assembly further comprises: and the second elastic limiting piece is fixedly connected with the bottom plate of the back plate and is used for limiting the positions of the light guide plate and the optical film layer relative to the back plate.
6. The backlight module according to claim 5, wherein each of the second elastic stoppers comprises: the light guide plate comprises a first part and a second part fixedly connected with the first part, wherein the first part is fixedly connected with the bottom plate, the second part is in contact with the side plate, the first part is positioned between the light guide plate and the bottom plate, and at least part of the second part is positioned between the light guide plate and the side plate;
the second edge of the light guide plate is provided with a second notch, the shape of the second notch of the light guide plate corresponds to the shape of the second part, at least part of the second part is positioned in the second notch of the light guide plate, and the distance from the edge of the second notch to the second part is smaller than the distance from the second edge of the light guide plate to the side plate.
7. The backlight module as claimed in claim 6, wherein each of the optical film layers has at least one second notch, the second notch of the optical film layer corresponds to the second notch of the light guide plate, and at least a portion of the second portion is located in the second notch of the optical film layer.
8. The backlight module as claimed in claim 7, wherein the bottom plate of the back plate has a rectangular shape; the second notch of each optical film layer is located at the second edge of the optical film layer, and the second edge of the optical film layer is opposite to the first edge of the optical film layer.
9. The backlight module according to claim 8, wherein the number of the second elastic stoppers is two, and the two second elastic stoppers are respectively located at two ends of the second edge of the optical film layer.
10. A backlight module according to claim 1, wherein the plurality of optical film layers comprises:
a lower diffusion sheet, a lower prism sheet, an upper prism sheet, and an upper diffusion sheet.
11. The backlight module of claim 1, further comprising:
the middle frame is positioned on one side of the optical film layer, which is far away from the diffusion plate, and is connected with the side plate;
the lamp strip, with curb plate fixed connection, and with the income plain noodles of light guide plate corresponds.
12. A display device, comprising the backlight module of any one of claims 1 to 11, wherein the display device is a vehicle-mounted display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123530.7A CN112114396A (en) | 2020-10-20 | 2020-10-20 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011123530.7A CN112114396A (en) | 2020-10-20 | 2020-10-20 | Backlight module and display device |
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| CN112114396A true CN112114396A (en) | 2020-12-22 |
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| CN202011123530.7A Pending CN112114396A (en) | 2020-10-20 | 2020-10-20 | Backlight module and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359350A (en) * | 2021-06-16 | 2021-09-07 | 武汉华星光电技术有限公司 | Backlight module and display panel |
| CN115145071A (en) * | 2021-03-30 | 2022-10-04 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2022247131A1 (en) * | 2021-05-24 | 2022-12-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display apparatus |
| WO2023000283A1 (en) * | 2021-07-23 | 2023-01-26 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display apparatus |
-
2020
- 2020-10-20 CN CN202011123530.7A patent/CN112114396A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115145071A (en) * | 2021-03-30 | 2022-10-04 | 京东方科技集团股份有限公司 | Display module and display device |
| CN115145071B (en) * | 2021-03-30 | 2023-11-07 | 京东方科技集团股份有限公司 | Display module and display device |
| WO2022247131A1 (en) * | 2021-05-24 | 2022-12-01 | 京东方科技集团股份有限公司 | Backlight module, display panel and display apparatus |
| CN113359350A (en) * | 2021-06-16 | 2021-09-07 | 武汉华星光电技术有限公司 | Backlight module and display panel |
| WO2023000283A1 (en) * | 2021-07-23 | 2023-01-26 | 瑞仪(广州)光电子器件有限公司 | Backlight module and display apparatus |
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