BACK PLATE INCLUDING RECEIVING SLOTS BACK PLATE ASSEMBLY, BACKLIGHT MODULE AND DISPLAY DEVICE
A back plate includes: a bottom plate; side plates on the same side of the bottom plate, wherein an accommodation space enclosed by both the bottom plate and the side plates is formed, the side plates include a first side plate including an inner surface facing the accommodation space; and receiving slots which are respectively located in the side plates and include a first receiving slot in the first side plate. The first receiving slot penetrates the first side plate in a first direction. The first receiving slot includes a receiving head, a positioning portion and a receiving tail, which are sequentially arranged from a slot bottom toward a slot opening in a second direction. A size of at least a part of the positioning portion in a third direction is greater than a size of each of the receiving head and the receiving tail in the third direction.
This application claims the benefit of Chinese Patent Application No. 201910757332.7 filed on Aug. 15, 2019 in the National Intelligent Property Administration of China, the whole disclosure of which is incorporated herein by reference.
TECHNICAL FIELDThe present disclosure relates to the field of display technology, and in particular, to a back plate, a back plate assembly, a backlight module, and a display device.
BACKGROUNDFor example, display devices such as liquid crystal display device (also referred to as LCD) has advantages such as thin body, less power consumption and no radiation, so that they have been widely used. An existing liquid crystal display device typically include a liquid crystal display panel and a backlight module. The liquid crystal display panel is operated according to a principle in which liquid crystal molecules between two parallel glass substrates are provided so that light emitted by the backlight module is controllable by controlling deflections of the liquid crystal molecules so as to display different images.
In the backlight module, it is necessary to position optical elements such as light guide plate and optical sheets on a back plate. With the continuous development of the liquid crystal display devices, the liquid crystal display device is gradually developing towards ultra-thin, narrow-frame and frameless directions. In ultra-thin, narrow-frame and frameless display devices, how to position the optical elements in the backlight module is one of key issues for researchers.
SUMMARYIn an aspect, a back plate is provided, including: a bottom plate; a plurality of side plates on the same side of the bottom plate, wherein an accommodation space enclosed by both the bottom plate and the plurality of side plates is formed, the plurality of side plates include a first side plate, and the first side plate includes an inner surface facing the accommodation space; and a plurality of receiving slots, wherein the plurality of receiving slots are respectively located in the plurality of side plates, and the plurality of receiving slots include a first receiving slot in the first side plate, wherein, the first receiving slot penetrates the first side plate in a first direction, and the first direction is perpendicular to the inner surface of the first side plate; the first receiving slot includes a slot opening and a slot bottom, the slot opening is located on a side of the first receiving slot distal to the bottom plate in a second direction, the slot bottom is located on a side of the first receiving slot near the bottom plate in the second direction, the bottom plate includes an inner surface facing the accommodation space, and the second direction is perpendicular to the inner surface of the bottom plate; the first receiving slot includes a receiving head, a positioning portion and a receiving tail, and the receiving head, the positioning portion and the receiving tail are sequentially arranged from the slot bottom toward the slot opening in the second direction; and a size of at least a part of the positioning portion in a third direction is greater than a size of each of the receiving head and the receiving tail in the third direction, and the third direction is perpendicular to both the first direction and the second direction.
For example, the back plate includes a first corner, the plurality of side plates further include a second side plate, and the second side plate is connected with the first side plate at the first corner; and the plurality of receiving slots further include a second receiving slot in the second side plate.
For example, the second receiving slot penetrates the second side plate in the third direction; the second receiving slot includes a slot opening and a slot bottom, the slot opening of the second receiving slot is located on a side of the second receiving slot distal to the bottom plate in the second direction, and the slot bottom of the second receiving slot is located on a side of the second receiving slot near the bottom plate in the second direction; the second receiving slot includes a receiving head, a positioning portion and a receiving tail, and the receiving head, the positioning portion and the receiving tail of the second receiving slot are sequentially arranged from the slot bottom of the second receiving slot toward the slot opening of the second receiving slot in the second direction; and a size of at least a part of the positioning portion of the second receiving slot in the first direction is greater than a size of each of the receiving head and the receiving tail of the second receiving slot in the first direction.
For example, the first receiving slot further includes a first slot wall and a second slot wall, the first slot wall and the second slot wall are respectively located on opposite sides of the first receiving slot in the third direction, and the first slot wall and the second slot wall each include a circular arc surface portion at the positioning portion of the first receiving slot; and/or the second receiving slot further includes a first slot wall and a second slot wall, the first slot wall of the second receiving slot and the second slot wall of the second receiving slot are respectively located on opposite sides of the second receiving slot in the first direction, and the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each include a circular arc surface portion at the positioning portion of the second receiving slot.
For example, an orthographic projection of the circular arc surface portion of the first slot wall of the first receiving slot on the first side plate and an orthographic projection of the circular arc surface portion of the second slot wall of the first receiving slot on the first side plate are concentric; and/or an orthographic projection of the circular arc surface portion of the first slot wall of the second receiving slot on the second side plate and an orthographic projection of the circular arc surface portion of the second slot wall of the second receiving slot on the second side plate are concentric.
For example, the first slot wall of the first receiving slot and the second slot wall of the first receiving slot each include a planar surface portion at the receiving head of the first receiving slot, and the first slot wall of the first receiving slot and the second slot wall of the first receiving slot each include a planar surface portion at the receiving tail of the first receiving slot; and/or the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each include a planar surface portion at the receiving head of the second receiving slot, and the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each include a planar surface portion at the receiving tail of the second receiving slot.
For example, the back plate further includes a first notch at the first corner, wherein the first notch is spaced apart from the first receiving slot, and the first notch is spaced apart from the second receiving slot.
For example, the back plate further includes a second corner, a third corner and a fourth corner, the plurality of side plates further include a third side plate and a fourth side plate, the second side plate is connected with the third side plate at the second corner, the third side plate is connected with the fourth side plate at the third corner, and the fourth side plate is connected with the first side plate at the fourth corner; and the plurality of receiving slots further include a third receiving slot and a fourth receiving slot which both are adjacent to the second corner, the third receiving slot is disposed in the third side plate, the fourth receiving slot is disposed in the second side plate, the third receiving slot has the same structure as the first receiving slot, and the fourth receiving slot has the same structure as the second receiving slot; and/or, the plurality of receiving slots further include a fifth receiving slot and a sixth receiving slot which both are adjacent to the third corner, the fifth receiving slot is disposed in the third side plate, the sixth receiving slot is disposed in the fourth side plate, the fifth receiving slot has the same structure as the first receiving slot, and the sixth receiving slot has the same structure as the second receiving slot; and/or, the plurality of receiving slots further include a seventh receiving slot and an eighth receiving slot which both are adjacent to the fourth corner, the seventh receiving slot is disposed in the first side plate, the eighth receiving slot is disposed in the fourth side plate, the seventh receiving slot has the same structure as the first receiving slot, and the eighth receiving slot has the same structure as the second receiving slot.
For example, the back plate further includes a second corner, the plurality of side plates further include a third side plate, and the second side plate is connected with the third side plate at the second corner; and the back plate further includes a sink at the second corner, and the sink is located in the bottom plate.
In another aspect, a back plate assembly is provided, including: the back plate as described above; and a plurality of buffer members including a first buffer member, wherein at least a part of the first buffer member is adapted to be inserted into the first receiving slot and the second receiving slot.
For example, the first buffer member includes: a first body including a first arm on a side of the first side plate facing the accommodation space; and a second arm on a side of the second side plate facing the accommodation space; a second body including a third arm on a side of the first side plate facing away from the accommodation space; and a fourth arm on a side of the second side plate facing away from the accommodation space; a first insertion portion between the first arm and the third arm, the first insertion portion being adapted to be inserted into the first receiving slot; and a second insertion portion between the second arm and the fourth arm, the second insertion portion being adapted to be inserted into the second receiving slot.
For example, the first buffer member includes: a first body including a first arm on a side of the first side plate facing the accommodation space; and a second arm on a side of the second side plate facing the accommodation space; a first insertion portion on a side of the first arm facing away from the accommodation space, the first insertion portion being adapted to be inserted into the first receiving slot; and a second insertion portion on a side of the second arm facing away from the accommodation space, the second insertion portion being adapted to be inserted into the second receiving slot.
For example, the first insertion portion includes an insertion head, a positioning part and an insertion tail, and a size of at least a part of the positioning part in the third direction is greater than a size of each of the insertion head and the insertion tail in the third direction.
For example, the first buffer member includes an elastic material.
For example, the positioning part of the first insertion portion is elastically deformable under a pressing action to pass through the receiving tail of the first receiving slot, and is restorable in response to removing the press action to be clamped on the positioning portion of the first receiving slot.
For example, the size of the insertion head in the third direction is no greater than the size of the receiving head in the third direction, the size of the positioning part in the third direction is no greater than the size of the positioning portion in the third direction, and the size of the insertion tail in the third direction is no greater than the size of the receiving tail in the third direction.
For example, the positioning part includes two circular arc surface parts, the two circular arc surface parts of the positioning part are located on opposite sides of the positioning part in the third direction, orthographic projections of the two circular arc surface parts of the positioning part on the first arm are concentric.
For example, the back plate further includes a second corner, a third corner and a fourth corner, the plurality of side plates further include a third side plate and a fourth side plate, the second side plate is connected with the third side plate at the second corner, the third side plate is connected with the fourth side plate at the third corner, and the fourth side plate is connected with the first side plate at the fourth corner; and the plurality of buffer members further include a second buffer member adjacent to the second corner, a third buffer member adjacent to the third corner, and a fourth buffer member adjacent to the fourth corner, and at least one of the second buffer member, the third buffer member and the fourth buffer member is identical in structure to the first buffer member.
For example, the first arm includes a first top surface distal to the bottom plate in the second direction, the second arm includes a second top surface distal to the bottom plate in the second direction, and the first top surface and the second top surface respectively extend to the second body to form a platform.
For example, the first buffer member further includes an avoiding notch at the first corner, and the avoiding notch is located on an inner surface of the second body facing the accommodation space.
In a further aspect, a backlight module is provided, including the back plate assembly as described above.
In another further aspect, a display device is provided, including the backlight module as described above.
Other objects and advantages of the present disclosure will become apparent from the following descriptions of the present disclosure with reference to accompanying drawings, which may help a comprehensive understanding of the present disclosure.
It should be noted that, for the sake of clarity, dimensions of layers, structures or regions may be enlarged or reduced in the drawings for describing the embodiments of the present disclosure, that is, these drawings are not drawn to actual scale.
DETAILED DESCRIPTION OF EMBODIMENTSIn order to make objectives, technical solutions and advantages of embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely in combination with drawings of the embodiments of the present disclosure. Obviously, the described embodiments are a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative labor shall fall within the protection scope of the present disclosure.
Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have ordinary meanings as understood by those skilled in the art. The terms such as “first”, “second” and the like used in this context do not indicate any order, quantity, or importance, but are only used to distinguish different components. Words such as “include”, “including”, “comprise”, “comprising” and the like mean that an element or item preceding the words contains elements or items following the words and equivalents of the elements or items, without excluding other elements or items.
In this context, unless otherwise specified, directional terms such as “upper”, “lower”, “left”, “right”, “inside”, “outside” and the like are used to indicate orientational or positional relationships based on the drawings, and they are used merely to facilitate describing the present disclosure, rather than indicating or implying that devices, elements or components which are modified by these terms must have particular orientations, or be constructed or operated in particular orientations. It should be understood that, when absolute positions of the described objects change, relative position relationships which are described by these terms may also change accordingly. Therefore, these directional terms cannot be understood as limiting the present disclosure.
It should be noted that in this context, for convenience of description, an XYZ spatial coordinate system is established. Referring to
Referring to
For example, the backlight module 200 may be an edge-lit backlight module. Specifically, the backlight module 200 may include a back plate assembly, a light source 210, a light guide plate 220, and an optical film group. For example, the optical film group may include optical films such as a diffusion sheet and a light enhancement film. It should be understood that the optical film group may also include other types of optical films, which may be selected according to actual use needs. For example, the light source 210 may include a plurality of light emitting diodes (LEDs). As shown in
For example, the display panel 400 may be a liquid crystal display panel and includes two substrates disposed opposite to each other. For example, the two substrates may be an array substrate and a color filter substrate, respectively. It should be understood that the liquid crystal display panel 400 may further include a liquid crystal layer disposed between the array substrate and the color filter substrate. Base substrates of the array substrate and the color filter substrate may be glass substrates. In addition, it should be noted that the array substrate and the color filter substrate may adopt structures of the array substrate and the color filter substrate commonly used in the related art, which are not described herein again.
Referring to
The back plate 1 further includes a plurality of corners. For example, the back plate 1 may include four corners, which include a first corner 16A, a second corner 16B, a third corner 16C, and a fourth corner 16D. The first corner 16A is located at a junction between the first side plate 11 and the second side plate 12. The second corner 16B is located at a junction between the second side plate 12 and the third side plate 13. The third corner 16C is located at a junction between the third side plate 13 and the fourth side plate 14. The fourth corner 16D is located at a junction between the fourth side plate 14 and the first side plate 11.
As shown in
Herein, for convenience of description, a side of the back plate facing the accommodation space is referred to as an “inner side”, and a side of the back plate facing away from the accommodation space is referred to as an “outer side”. It needs to be pointed out that directional expressions such as “inner” and “outer” are merely for the convenience of describing the embodiments of the present disclosure, and should not be construed as limiting the present disclosure.
In the embodiments of the present disclosure, the back plate 1 may have a one-piece structure, that is, the back plate 1 is a component which is formed by an integrally molding process. For example, an integrated back plate blank may be formed by a process such as machining process or stamping process, and then a periphery of the back plate blank is bent by a bending process to form four side plates. For example, the back plate 1 may be made of metal materials such as iron, aluminum, stainless steel, or the like.
Referring to
For example, the receiving slot may include a first receiving slot 17 in the first side plate 11. The first receiving slot 17 is disposed adjacent to the first corner 16A. The first receiving slot 17 is spaced apart from the first corner 16A by a certain interval in the X direction. The first receiving slot 17 penetrates the first side plate 11 in the Y direction, that is, the first receiving slot 17 penetrates the entire thickness of the first side plate 11. The first receiving slot 17 does not penetrate the first side plate 11 in the Z direction.
Specifically, the first receiving slot 17 has a slot opening 174, a slot bottom 175, a first slot wall 176, and a second slot wall 177. The slot opening 174 is located on a side of the first receiving slot 17 distal to the bottom plate 15 in the Z direction. The slot bottom 175 is located on a side of the first receiving slot 17 near the bottom plate 15 in the Z direction. That is, the slot opening 174 and the slot bottom 175 are located on opposite sides of the first receiving slot 17 in the Z direction, respectively. The slot bottom 175 is spaced from the bottom plate 15 by a predetermined distance h in the Z direction. The first slot wall 176 and the second slot wall 177 are respectively located on opposite sides of the first receiving slot 17 in the X direction, and they are both located between the slot opening 174 and the slot bottom 175 in the Z direction.
More specifically, the first receiving slot 17 may include three portions, that is, a receiving head 171, a positioning portion 172, and a receiving tail 173. The receiving head 171, the positioning portion 172 and the receiving tail 173 are sequentially arranged from the slot bottom 175 toward the slot opening 174 in the Z direction. A size (i.e., width) of the positioning portion 172 in the X direction is greater than a size (i.e., width) of each of the receiving portion 171 and the receiving tail 173 in the X direction.
For example,
Referring back to
Specifically, the second receiving slot 18 includes a slot opening 184, a slot bottom 185, a first slot wall 186, and a second slot wall 187. The slot opening 184 is located on a side of the second receiving slot 18 distal to the bottom plate 15 in the Z direction. The slot bottom 185 is located on a side of the second receiving slot 18 near the bottom plate 15 in the Z direction. That is, the slot opening 184 and the slot bottom 185 are located on opposite sides of the second receiving slot 18 in the Z direction, respectively. The slot bottom 185 is spaced from the bottom plate 15 in the Z direction by a predetermined distance h, which is equal to the distance by which the slot bottom 175 is spaced from the bottom plate 15 in the Z direction. The first slot wall 186 and the second slot wall 187 are respectively located on opposite sides of the second receiving slot 18 in the Y direction, and they are both located between the slot opening 184 and the slot bottom 185 in the Z direction.
More specifically, the second receiving slot 18 may include three portions, that is, a receiving head 181, a positioning portion 182, and a receiving tail 183. The receiving head 181, the positioning portion 182, and the receiving tail 183 are sequentially arranged from the slot bottom 185 toward the slot opening 184 in the Z direction. A size (i.e., width) of the positioning portion 182 in the Y direction is greater than a size (i.e., width) of each of the receiving head 181 and the receiving tail 183 in the Y direction.
For example,
As described above, in a process of manufacturing the back plate, the side plates are typically formed by a bending process in order to improve processing efficiency. In order to avoid interference during the bending process, process notches need to be designed at the four corners of the back plate.
Referring to
Optionally, the back plate 1 may have the same structure at the other three corners 16B, 16C, and 16D as at the corner 16A. Referring to
Optionally, the back plate 1 may have a different structure at the corner 16B from at the corner 16A.
Optionally, the back plate 1 may have the same structure at the corner 16C as at the corner 16B.
For example, the back plate 1 according to the embodiments of the present disclosure may have the structure including the receiving slot at two corners (i.e., the first corner 16A and the fourth corner 16D) located on the sky side. Specifically, the structure shown in
With reference to
The first arm 511 and the third arm 521 are spaced apart from each other in the Y direction, and the second arm 512 and the fourth arm 522 are spaced apart from each other in the X direction. As shown in
The first buffer member 5 includes a corner portion 59. The first arm 511 and the second arm 512 are connected at the corner portion 59. For example, the first arm 511 and the second arm 512 are connected substantially perpendicularly at the corner portion 59, so that the first body 51 has a substantially L shape. The third arm 521 and the fourth arm 522 are connected at the corner portion 59. For example, the third arm 521 and the fourth arm 522 are connected substantially perpendicularly at the corner portion 59, so that the second body 52 also has a substantially L shape.
The first buffer member 5 further includes an insertion portion which is adapted to be inserted into the receiving slot of the back plate 1.
For example, the insertion portion may include a first insertion portion 53 and a second insertion portion 54. The first insertion portion 53 is disposed between the first arm 511 and the third arm 521, and the second insertion portion 54 is disposed between the second arm 512 and the fourth arm 522. The first insertion portion 53 is adapted to be inserted into the first receiving slot 17, and the second insertion portion 54 is adapted to be inserted into the second receiving slot 18.
For example, the first insertion portion 53 may include three parts which include an insertion head 531, a positioning part 532, and an insertion tail 533. A size (i.e., width) of the positioning part 532 in the X direction is greater than a size (i.e., width) of each of the insertion head 531 and the insertion tail 533 in the X direction. Shapes and sizes of the insertion head 531, the positioning part 532, and the insertion tail 533 of the first insertion portion 53 may be adapted to shapes and sizes of the receiving head 171, the positioning portion 172, and the receiving tail 173 of the first receiving slot 17, respectively.
With reference to
With reference to
For example, the diameter 2r of the positioning part 532 may be greater than the size (i.e., width) W1 of the receiving head 171 in the X direction and the size (i.e., width) W2 of the receiving tail 173 in the X direction. In this way, after the first insertion portion 53 is completely inserted into the first receiving slot 17, it may ensure that the positioning part 532 is clamped on the positioning portion 172, that is, the first insertion portion 53 does not disengage from the first receiving slot 17, thereby realizing that the first insertion portion 53 is positioned and fixed in the first receiving slot 17.
For example, the first buffer member 5 may be made of an elastic material such as rubber, silicone or the like. The first buffer member 5 may be made by an integrated molding process such as injection molding. That is, the first insertion portion 53 is also made of an elastic material such as rubber, silicone or the like. In this way, during the first insertion portion 53 is inserted into the first receiving slot 17, the first buffer member 5 is pressed into the first receiving slot 17 under a pressing action. The positioning part 532 is compressed under the pressing action. In this way, the positioning part 532 may pass through the receiving tail 173 of the first receiving slot 17 to enter the positioning portion 172 of the first receiving slot 17. Then, the positioning part 532 may be restored to its original state to be clamped on the positioning portion 172. For example,
In the embodiments of the present disclosure, a difference (i.e., 2r−W2) between the diameter 2r of the positioning part 532 and the size (i.e., width) W2 of the receiving tail 173 in the X direction is related to the material of the first buffer member 5, specifically, is related to elastic properties (such as the modulus of elasticity) of the material. The difference (i.e., 2r−W2) between the diameter 2r of the positioning part 532 and the size (i.e., width) W2 of the receiving tail 173 in the X direction is designed so that the positioning part 532 may be compressed under the pressing action to pass through the receiving tail 173.
As shown in
Referring back to
Referring back to
As shown in
With continued reference to
With reference to
In the back plate assembly provided by the embodiments of the present disclosure, the first side plate of the back plate is sandwiched between the first arm and the third arm of the buffer member, so that the buffer member is positioned and fixed on the back plate in the Y direction; the second side plate of the back plate is sandwiched between the third arm and the fourth arm of the buffer member, so that the buffer member is positioned and fixed on the back plate in the X direction; the insertion portion of the buffer member is inserted into the receiving slot of the back plate, and specifically, the positioning part of the insertion portion is positioned and clamped on the positioning portion of the receiving slot, so that the buffer member is positioned and fixed on the back plate in the Z direction. In this way, the buffer member may be reliably positioned and fixed on the back plate.
In the embodiments of the present disclosure, the buffer member may be inserted into and positioned on the side plates of the back plate, and the buffer member is deformable by itself to be positioned, thereby avoiding using any double-sided adhesive tape and facilitating an assembly of the back plate assembly.
Optionally, the back plate assembly may have the same structure at the other three corners 16B, 16C, and 16D as at the corner 16A. Referring to
With reference to
Optionally, the back plate assembly may have a different structure at the corner 16B from at the corner 16A.
Optionally, a double-sided adhesive tape is provided between the bottom plate portion 61 and the sink 21. Specifically, a double-sided adhesive tape is provided on a surface of the bottom plate portion 61 facing the sink 21 to bond the bottom plate portion 61 and the bottom plate 15 of the back plate 1, so that the second buffer member 6 is positioned and fixed on the back plate 1.
Optionally, the back plate assembly may have the same structure at the corner 16C as at the corner 16B.
Optionally, a double-sided adhesive tape is provided between the bottom plate portion 71 and the sink 21C. Specifically, the double-sided adhesive tape is provided on a surface of the bottom plate portion 71 facing the sink 21C to bond the bottom plate portion 71 and the bottom plate 15 of the back plate 1, so that the third buffer member 7 is positioned and fixed on the back plate 1.
For example, the back plate assembly according to the embodiments of the present disclosure may have the structure including the receiving slot and the insertion portion at two corners (i.e., the first corner 16A and the fourth corner 16D) located on the sky side, specifically, it may have the structure shown in
Optionally, referring to
Optionally, the first body 51′ includes a first arm 511′ and a second arm 512′. A double-sided adhesive tape is provided between the first arm 511′ and the first side plate 11 to bond the first arm 511′ and the first side plate 11. A double-sided adhesive tape is provided between the second arm 512′ and the second side plate 12 to bond the second arm 512′ and the second side plate 12.
With reference to
In the embodiments of the present disclosure, the buffer member may be well positioned and fixed on the back plate, and position and support the optical element in the accommodation space 1S well, and there is no need to provide an additional structure on the side plate of the back plate to position the optical element.
Moreover, in some embodiments of the present disclosure, it is not necessary to provide a sink in the bottom plate 15 of the back plate 1 to place the buffer member, so that the thickness of the bottom plate may be reduced, thereby reducing the total thickness of the backlight module.
In the embodiments of the present disclosure, the buffer members are each composed of an elastic material such as silicone or rubber. In this way, the buffer members may buffer the optical element in the accommodation space 1S.
In addition, the buffer members are respectively disposed at the four corners of the back plate, and may respectively shield the notches at the corners of the back plate, so that they may not only prevent light emitted by the backlight module from leaking through the notches, but also prevent foreign objects from entering the backlight module, that is, the buffer member may function to prevent light leakage and seal the backlight module.
Referring back to
Optionally, in the display device according to the embodiments of the present disclosure, the back plate assembly may have a structure including the receiving slot and the insertion portion at two corners (i.e., the first corner 16A and the fourth corner 16D) located on the sky side, specifically, it may have the structure shown in
Optionally, in the display device according to the embodiments of the present disclosure, the back plate assembly may have the structure including the receiving slot and the insertion portion at the four corners 16A, 16B, 16C, 16D. In this way, narrow frame or even no frame may be realized at the first side frame 101, the second side frame 102, the third side frame 103, and the fourth side frame 104, that is, a display device with the narrow frame at four sides or a display device which is frameless at four sides may be realized.
For example, the display device in each of the embodiments described above may be a vehicle-mounted display device applied to a moving object such as a car, or may be a display device such as a notebook computer. Of course, the embodiments of the present disclosure are not limited thereto. For example, the display device may be a product or component with a display function, such as a smart phone, a wearable smart watch, smart glasses, a tablet computer, a television, a display, a digital photo frame, a navigator, a vehicle-mounted display, an e-book, and the like.
Although some embodiments according to the general inventive concept of the present disclosure have been shown and described, those skilled in the art will understand that changes can be made to these embodiments without departing from the principle and spirit of the general inventive concept. Thus, the scope of the present disclosure shall be defined by appending claims and their equivalents.
Claims
1. A back plate, comprising:
- a bottom plate;
- a plurality of side plates on the same side of the bottom plate, wherein an accommodation space enclosed by both the bottom plate and the plurality of side plates is formed, the plurality of side plates comprise a first side plate, and the first side plate comprises an inner surface facing the accommodation space; and
- a plurality of receiving slots, wherein the plurality of receiving slots are respectively located in the plurality of side plates, and the plurality of receiving slots comprise a first receiving slot in the first side plate,
- wherein, the first receiving slot penetrates the first side plate in a first direction, and the first direction is perpendicular to the inner surface of the first side plate;
- the first receiving slot comprises a slot opening and a slot bottom, the slot opening is located on a side of the first receiving slot distal to the bottom plate in a second direction, the slot bottom is located on a side of the first receiving slot near the bottom plate in the second direction, the bottom plate comprises an inner surface facing the accommodation space, and the second direction is perpendicular to the inner surface of the bottom plate;
- the first receiving slot comprises a receiving head, a positioning portion and a receiving tail, and the receiving head, the positioning portion and the receiving tail are sequentially arranged from the slot bottom toward the slot opening in the second direction; and
- a size of at least a part of the positioning portion in a third direction is greater than a size of each of the receiving head and the receiving tail in the third direction, and the third direction is perpendicular to both the first direction and the second direction.
2. The back plate according to claim 1, wherein the back plate comprises a first corner, the plurality of side plates further comprise a second side plate, and the second side plate is connected with the first side plate at the first corner; and
- the plurality of receiving slots further comprise a second receiving slot in the second side plate.
3. The back plate according to claim 2, wherein the second receiving slot penetrates the second side plate in the third direction;
- the second receiving slot comprises a slot opening and a slot bottom, the slot opening of the second receiving slot is located on a side of the second receiving slot distal to the bottom plate in the second direction, and the slot bottom of the second receiving slot is located on a side of the second receiving slot near the bottom plate in the second direction;
- the second receiving slot comprises a receiving head, a positioning portion and a receiving tail, and the receiving head, the positioning portion and the receiving tail of the second receiving slot are sequentially arranged from the slot bottom of the second receiving slot toward the slot opening of the second receiving slot in the second direction; and
- a size of at least a part of the positioning portion of the second receiving slot in the first direction is greater than a size of each of the receiving head and the receiving tail of the second receiving slot in the first direction.
4. The back plate according to claim 3, wherein the first receiving slot further comprises a first slot wall and a second slot wall, the first slot wall and the second slot wall are respectively located on opposite sides of the first receiving slot in the third direction, and the first slot wall and the second slot wall each comprise a circular arc surface portion at the positioning portion of the first receiving slot; and/or
- the second receiving slot further comprises a first slot wall and a second slot wall, the first slot wall of the second receiving slot and the second slot wall of the second receiving slot are respectively located on opposite sides of the second receiving slot in the first direction, and the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each comprise a circular arc surface portion at the positioning portion of the second receiving slot.
5. The back plate according to claim 4, wherein an orthographic projection of the circular arc surface portion of the first slot wall of the first receiving slot on the first side plate and an orthographic projection of the circular arc surface portion of the second slot wall of the first receiving slot on the first side plate are concentric; and/or
- an orthographic projection of the circular arc surface portion of the first slot wall of the second receiving slot on the second side plate and an orthographic projection of the circular arc surface portion of the second slot wall of the second receiving slot on the second side plate are concentric.
6. The back plate according to claim 4, wherein the first slot wall of the first receiving slot and the second slot wall of the first receiving slot each comprise a planar surface portion at the receiving head of the first receiving slot, and the first slot wall of the first receiving slot and the second slot wall of the first receiving slot each comprise a planar surface portion at the receiving tail of the first receiving slot; and/or
- the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each comprise a planar surface portion at the receiving head of the second receiving slot, and the first slot wall of the second receiving slot and the second slot wall of the second receiving slot each comprise a planar surface portion at the receiving tail of the second receiving slot.
7. The back plate according to claim 2, further comprising a first notch at the first corner,
- wherein the first notch is spaced apart from the first receiving slot, and the first notch is spaced apart from the second receiving slot.
8. The back plate according to claim 3, wherein the back plate further comprises a second corner, a third corner and a fourth corner, the plurality of side plates further comprise a third side plate and a fourth side plate, the second side plate is connected with the third side plate at the second corner, the third side plate is connected with the fourth side plate at the third corner, and the fourth side plate is connected with the first side plate at the fourth corner; and
- the plurality of receiving slots further comprise a third receiving slot and a fourth receiving slot which both are adjacent to the second corner, the third receiving slot is disposed in the third side plate, the fourth receiving slot is disposed in the second side plate, the third receiving slot has the same structure as the first receiving slot, and the fourth receiving slot has the same structure as the second receiving slot; and/or, the plurality of receiving slots further comprise a fifth receiving slot and a sixth receiving slot which both are adjacent to the third corner, the fifth receiving slot is disposed in the third side plate, the sixth receiving slot is disposed in the fourth side plate, the fifth receiving slot has the same structure as the first receiving slot, and the sixth receiving slot has the same structure as the second receiving slot; and/or, the plurality of receiving slots further comprise a seventh receiving slot and an eighth receiving slot which both are adjacent to the fourth corner, the seventh receiving slot is disposed in the first side plate, the eighth receiving slot is disposed in the fourth side plate, the seventh receiving slot has the same structure as the first receiving slot, and the eighth receiving slot has the same structure as the second receiving slot.
9. The back plate according to claim 3, wherein the back plate further comprises a second corner, the plurality of side plates further comprise a third side plate, and the second side plate is connected with the third side plate at the second corner; and
- the back plate further comprises a sink at the second corner, and the sink is located in the bottom plate.
10. A back plate assembly, comprising:
- the back plate according to claim 2; and
- a plurality of buffer members comprising a first buffer member,
- wherein at least a part of the first buffer member is adapted to be inserted into the first receiving slot and the second receiving slot.
11. The back plate assembly according to claim 10, wherein the first buffer member comprises:
- a first body comprising: a first arm on a side of the first side plate facing the accommodation space; and a second arm on a side of the second side plate facing the accommodation space;
- a second body comprising: a third arm on a side of the first side plate facing away from the accommodation space; and a fourth arm on a side of the second side plate facing away from the accommodation space;
- a first insertion portion between the first arm and the third arm, the first insertion portion being adapted to be inserted into the first receiving slot; and
- a second insertion portion between the second arm and the fourth arm, the second insertion portion being adapted to be inserted into the second receiving slot.
12. The back plate assembly according to claim 10, wherein the first buffer member comprises:
- a first body comprising: a first arm on a side of the first side plate facing the accommodation space; and a second arm on a side of the second side plate facing the accommodation space;
- a first insertion portion on a side of the first arm facing away from the accommodation space, the first insertion portion being adapted to be inserted into the first receiving slot; and
- a second insertion portion on a side of the second arm facing away from the accommodation space, the second insertion portion being adapted to be inserted into the second receiving slot.
13. The back plate assembly according to claim 11, wherein the first insertion portion comprises an insertion head, a positioning part and an insertion tail, and a size of at least a part of the positioning part in the third direction is greater than a size of each of the insertion head and the insertion tail in the third direction.
14. The back plate assembly according to claim 13, wherein the first buffer member comprises an elastic material.
15. The back plate assembly according to claim 14, wherein the positioning part of the first insertion portion is elastically deformable under a pressing action to pass through the receiving tail of the first receiving slot, and is restorable in response to removing the press action to be clamped on the positioning portion of the first receiving slot.
16. The back plate assembly according to claim 13, wherein the size of the insertion head in the third direction is no greater than the size of the receiving head in the third direction, the size of the positioning part in the third direction is no greater than the size of the positioning portion in the third direction, and the size of the insertion tail in the third direction is no greater than the size of the receiving tail in the third direction.
17. The back plate assembly according to claim 16, wherein the positioning part comprises two circular arc surface parts, the two circular arc surface parts of the positioning part are located on opposite sides of the positioning part in the third direction, orthographic projections of the two circular arc surface parts of the positioning part on the first arm are concentric.
18. The back plate assembly according to claim 16, wherein the back plate further comprises a second corner, a third corner and a fourth corner, the plurality of side plates further comprise a third side plate and a fourth side plate, the second side plate is connected with the third side plate at the second corner, the third side plate is connected with the fourth side plate at the third corner, and the fourth side plate is connected with the first side plate at the fourth corner; and
- the plurality of buffer members further comprise a second buffer member adjacent to the second corner, a third buffer member adjacent to the third corner, and a fourth buffer member adjacent to the fourth corner, and at least one of the second buffer member, the third buffer member and the fourth buffer member is identical in structure to the first buffer member.
19. The back plate assembly according to claim 11, wherein the first arm comprises a first top surface distal to the bottom plate in the second direction, the second arm comprises a second top surface distal to the bottom plate in the second direction, and the first top surface and the second top surface respectively extend to the second body to form a platform; and
- the first buffer member further comprises an avoiding notch at the first corner, and the avoiding notch is located on an inner surface of the second body facing the accommodation space.
20. A backlight module, comprising the back plate assembly according to claim 10.
Type: Application
Filed: Mar 26, 2020
Publication Date: Feb 18, 2021
Inventors: Liri Chen (Beijing), Qingen Zhou (Beijing), Rongshun Zhang (Beijing)
Application Number: 16/830,547