Backlight module, display module and display device

Abstract

The utility model provides a backlight module, a display module and a display device.The backlight module comprises a light guide plate which comprises a light emitting face and a backlight face which are oppositely arranged; the optical film layer is arranged on the light emitting surface of the light guide plate; the rubber frame and the optical film layer are arranged in a spaced mode, the rubber frame comprises a plurality of side rubber frames which are sequentially connected end to end, each side rubber frame comprises a first part and a second part, the first parts are arranged on the side, away from the light guide plate, of the optical film layer at intervals, and orthographic projections of the first parts on the optical film layer cover the ends of the optical film layer; the back plate is connected with each second part and the backlight surface of the light guide plate, a containing interval is formed between the back plate and the first part of at least one side rubber frame, the orthographic projection of the containing interval on a first plane covers the orthographic projection of the optical film layer on the first plane, the first plane is the plane where the second parts are located, and the second parts are located on the second plane. It can be ensured that bright lines do not appear while a narrow frame is achieved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a backlight module, a display module and a display device. Background Art

[0002] For display products, the frame usually needs to be wider to effectively ensure that the display module will not produce bright lines. As the market demand for narrow frame becomes more and more widespread, narrow frame design has gradually become a hot spot, but reducing the width of the plastic frame may result in insufficient film lamination, resulting in bright lines. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide a backlight module, a display module and a display device to solve or partially solve the problems raised by the background technology.

[0004] Based on the above purpose, the first aspect of the present application provides a backlight module, including:

[0005] A light guide plate, comprising a light emitting surface and a backlight surface arranged opposite to each other;

[0006] An optical film layer, disposed on the light emitting surface of the light guide plate;

[0007] A plastic frame is arranged at intervals from the optical film layer, the plastic frame includes a plurality of side plastic frames connected in sequence end to end, each side plastic frame includes a first portion and a second portion, the first portion is arranged at intervals on a side of the optical film layer away from the light guide plate, and an orthographic projection of the first portion on the optical film layer covers an end of the optical film layer;

[0008] The back panel is connected to each of the second parts and the backlight surface of the light guide plate, and has an accommodation space with the first part of at least one of the side plastic frames, the orthographic projection of the accommodation space on the first plane covers the orthographic projection of the optical film layer on the first plane, and the first plane is the plane where the second part is located.

[0009] Optionally, the plurality of side plastic frames include a first side plastic frame and a second side plastic frame that are arranged opposite to each other, and there is an accommodation space between the back plate and the first part of the first side plastic frame and the first part of the second side plastic frame.

[0010] Optionally, the plurality of side plastic frames further include a third side plastic frame and a fourth side plastic frame that are arranged opposite to each other, and the back plate is connected to the first portion of the third side plastic frame and the first portion of the fourth side plastic frame.

[0011] Optionally, the back plate includes a vertical plate and a horizontal plate, the vertical plate is connected to each of the second parts, and the horizontal plate is connected to the backlight surface of the light guide plate.

[0012] Optionally, the vertical plate includes two first sub - plates, which are in one - to - one correspondence and connection with the second parts of the first side rubber frame and the second side rubber frame. The orthographic projection of the first sub - plate and the second sub - plate on the first plane does not overlap with the orthographic projection of the optical film layer on the first plane.

[0013] Optionally, the vertical plate further includes two second sub - plates, one of the second sub - plates is connected to both the first part and the second part of the third side rubber frame, and the other second sub - plate is connected to both the first part and the second part of the fourth side rubber frame.

[0014] Optionally, a clamping hole is provided on the side of the first sub - plate facing away from the light - guide plate, and a clamping buckle matching the clamping hole is provided on the side of the second part close to the light - guide plate;

[0015] Or a clamping hole is provided on the side of the second part close to the light - guide plate, and a clamping buckle matching the clamping hole is provided on the side of the first sub - plate facing away from the light - guide plate.

[0016] Optionally, a double - sided adhesive layer is further included. The double - sided adhesive layer is located between the second part and the first sub - plate for connecting the second part and the first sub - plate. The orthographic projection of the double - sided adhesive layer on the first plane does not overlap with the orthographic projection of the clamping buckle and the clamping hole on the first plane.

[0017] Optionally, a side adhesive tape is further included. One end of the side adhesive tape is bonded to the second part, and the other end of the side adhesive tape is connected to the side of the back plate facing away from the light - guide plate.

[0018] In a second aspect of the present application, a display module is provided, including a display panel and the backlight module according to any one of the first aspects above. The first part of the rubber frame of the backlight module is connected to the backlight side of the display panel.

[0019] Optionally, an edge adhesive layer is further included. One end of the edge adhesive layer covers the end of the display panel, and the other end is connected to the side of the back plate facing away from the light - guide plate.

[0020] In a third aspect of the present application, a display device is provided, including the backlight module according to any one of the first aspects above or the display module according to any one of the second aspects above.

[0021] As can be seen from the above, for the backlight module, display module, and display device provided by the present application, the first part is disposed at intervals on the side of the optical film layer facing away from the light guide plate, and the orthographic projection of the first part on the optical film layer covers the end of the optical film layer. In this way, it can be ensured that the first part completely covers the end of the optical film layer, ensuring that no bright lines will appear. At the same time, there is an accommodation interval between the backplane and the first part of at least one side of the rubber frame, that is, the backplane is retracted inward in the direction away from the first part, so that the space previously used to accommodate the backplane forms an accommodation interval. This accommodation interval can be used to accommodate the expansion amount of the optical film layer, and there is no need to reserve an additional space. Therefore, compared with the existing structure, the backplane module structure of the present application reduces the reserved space between the backplane and the optical film layer, and thus can reduce the width of the first part, and further achieve a narrow bezel. At the same time, the distance between the edge of the first part and the end of the optical film layer, that is, the film pressing amount, does not decrease, ensuring that no bright lines will appear. Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a partial exemplary structural schematic diagram of a backlight module in the related art;

[0024] Figure 2 It is the first top view of the display module according to the embodiment of the present application;

[0025] Figure 3 It is the first partial structural schematic diagram of the backlight module according to the embodiment of the present application;

[0026] Figure 4 It is the second top view of the display module according to the embodiment of the present application;

[0027] Figure 5 It is the second partial structural schematic diagram of the backlight module according to the embodiment of the present application;

[0028] Figure 6 It is the first structural schematic diagram of the second part according to the embodiment of the present application;

[0029] Figure 7 It is the first structural schematic diagram of the first daughter board according to the embodiment of the present application;

[0030] Figure 8 It is the structural schematic diagram after the second part and the first daughter board are clamped according to the embodiment of the present application;

[0031] Figure 9 ForFigure 8 Partial enlarged schematic diagram of A

[0032] Figure 10 Second structural schematic diagram of the first sub-board of the embodiment of the present application

[0033] Figure 11 Second structural schematic diagram of the second part of the embodiment of the present application

[0034] Figure 12 Structural schematic diagram of the display module of the embodiment of the present application

[0035] In the figure: 01, border; 011, horizontal frame; 012, vertical frame; 1, rubber frame; 11, side rubber frame; 111, first part; 112, second part; 1121, card hole; 12, first side rubber frame; 13, second side rubber frame; 14, third side rubber frame; 15, fourth side rubber frame; 2, back plate; 21, vertical plate; 211, buckle; 212, second sub-board; 213, first sub-board; 22, horizontal plate; 3, optical film layer; 4, light guide plate; 41, light-emitting surface; 42, backlight surface; 5, accommodation interval; 6, double-sided adhesive layer; 7, side adhesive tape; 8, display panel; 9, foam adhesive layer; 10, edge adhesive layer. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present application more clear and understandable, the present application will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0037] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those of ordinary skill in the field to which the present application belongs. The "first", "second" and similar terms used in the present application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0038] For in-vehicle display products, usually a relatively wide border size is required to effectively ensure that no bright lines will occur in the display module. With the increasing market demand for narrow borders, narrow border design has gradually become a hot topic.

[0039] The structural schematic diagram of the existing display module is asFigure 1 As shown, the frame 01 is connected to the backplane 2, and the two enclose a space for accommodating the optical film layer 3. The frame 01 includes a horizontal frame 011 and a vertical frame 012. The horizontal frame 011 covers the end of the optical film layer 3 to avoid generating bright lines, and at the same time, both the horizontal frame 011 and the vertical frame 012 are connected to the backplane 2.

[0040] For the display module, on the one hand, in order to prevent the generation of bright lines, the film pressing amount of the optical film layer 3 needs to be sufficient. As Figure 1 shown, the film pressing amount is the dimension from the edge of the frame 01 to the edge of the optical film layer 3 (i.e., Figure 1 shown as a in Figure 1 ), and the film pressing amount cannot be too small, otherwise bright lines are very likely to be generated. On the other hand, at the same time, the space for the thermal expansion of the optical film layer 3 needs to be considered. Therefore, there needs to be space outside the end of the optical film layer 3 to accommodate the expansion of the optical film layer 3. As

[0041] shown, there is a gap between the optical film layer 3 and the backplane 2 for accommodating the expansion amount of the optical film layer 3.

[0042] In the related art, in order to achieve a narrow frame design, many attempts have been made. For example, reducing the width of the horizontal frame 011 of the frame 01 can reduce the total width of the frame 01. However, reducing the width of the horizontal frame 011 of the frame 01 will cause the distance between the edge of the horizontal frame 011 and the edge of the optical film layer 3 to not meet the requirement of the film pressing amount, thereby resulting in the generation of bright lines.

[0042] Therefore, how to avoid the appearance of bright lines while achieving a narrow frame is an urgent problem to be solved.

[0043] Based on this, as Figure 2 and Figure 3 shown, the present application provides a backlight module, including:

[0044] A light guide plate 4, including a light emitting surface 41 and a backlight surface 42 arranged oppositely;

[0045] An optical film layer 3, arranged on the light emitting surface 41 of the light guide plate 4;

[0046] A glue frame 1, arranged at an interval from the optical film layer 3. The glue frame 1 includes a plurality of side glue frames 11 connected end to end in sequence. Each side glue frame 11 includes a first part 111 and a second part 112. The first part 111 is arranged at an interval on the side of the optical film layer 3 away from the light guide plate 4, and the orthographic projection of the first part 111 on the optical film layer 3 covers the end of the optical film layer 3;

[0047] The back plate 2 is connected to each of the second parts 112 and the backlight surface 42 of the light guide plate 4, and there is an accommodation space 5 between the back plate 2 and the first part 111 of at least one of the side rubber frames 11. The orthographic projection of the accommodation space 5 on the first plane covers the orthographic projection of the optical film layer 3 on the first plane. The first plane is the plane where the second part 112 is located.

[0048] Specifically, the optical film layer 3 is disposed on the light-emitting surface 41 of the light guide plate 4, and the orthographic projection of the optical film layer 3 on the light guide plate 4 covers the light guide plate 4, that is, the optical film layer 3 covers the end of the light guide plate 4.

[0049] The rubber frame 1 includes a plurality of side rubber frames 11 connected in sequence end to end. Each side rubber frame 11 includes a first part 111 and a second part 112. The first part 111 is disposed at an interval on the side of the optical film layer 3 away from the light guide plate 4. The orthographic projection of the first part 111 on the optical film layer 3 covers the end of the optical film layer 3, so that it can be ensured that the first part 111 covers the end of the optical film layer 3 and no bright line will be generated.

[0050] Further, the distance between the orthographic projection of the first part 111 on the optical film layer 3 and the end of the optical film layer 3 is greater than or equal to a preset film pressing amount to ensure that no bright line will be generated.

[0051] The back plate 2 is connected to each of the second parts 112 and the backlight surface 42 of the light guide plate 4 to ensure the stability of the rubber frame 1, the light guide plate 4 and the optical film layer 3.

[0052] There is an accommodation space 5 between the back plate 2 and the first part 111 of at least one of the side rubber frames 11. The orthographic projection of the accommodation space 5 on the first plane covers the orthographic projection of the optical film layer 3 on the first plane, that is, the accommodation space 5 can accommodate the end of the optical film layer 3. Thus, when the optical film layer 3 expands at high temperature, the accommodation space 5 between the back plate 2 and the first part 111 can accommodate the expansion amount of the optical film layer 3.

[0053] That is to say, compared with the existing structure in which the back plate 2 is connected to the first part 111 and then an additional space is reserved between the back plate 2 and the optical film layer 3 to accommodate the expansion amount of the optical film layer 3, in this application, the back plate 2 is retracted inward away from the first part 111, so that the space previously used to accommodate the back plate 2 forms an accommodation space 5, and this accommodation space 5 can be used to accommodate the expansion amount of the optical film layer 3 without the need to reserve an additional space. Therefore, compared with the existing structure, the backlight module structure of this application reduces the reserved space between the back plate 2 and the optical film layer 3 (this space can be close to 0), and further can reduce the width of the first part 111, and further achieve a narrow border. At the same time, the distance between the edge of the first part 111 and the end of the optical film layer 3, that is, the film pressing amount, is not reduced, ensuring that no bright line will appear.

[0054] In the present application, there may be a receiving space 5 between the back plate 2 and the first portion 111 of one of the side plastic frames 11, there may be a receiving space 5 between the back plate 2 and the first portion 111 of two of the side plastic frames 11, or there may be a receiving space 5 between the back plate 2 and the first portion 111 of each of the side plastic frames 11. When there is a receiving space 5 between the back plate 2 and the first portion 111 of a side plastic frame 11, the width of the side plastic frame 11 can be reduced, and a narrow frame can be achieved.

[0055] The specific back plate 2 and the first portion 111 of the side plastic frame 11 between which the accommodation space 5 is provided is selected according to actual needs and is not limited here.

[0056] In the present application, the first part 111 is spaced apart and arranged on the side of the optical film layer 3 away from the light guide plate 4, and the orthographic projection of the first part 111 on the optical film layer 3 covers the end of the optical film layer 3, so that it can be ensured that the first part 111 completely covers the end of the optical film layer 3, and ensures that no bright line appears. At the same time, there is an accommodating gap 5 between the back panel 2 and the first part 111 of at least one of the side plastic frames 11, that is, the back panel 2 is retracted inward in the direction away from the first part 111, so that the space previously used to accommodate the back panel 2 is formed into the accommodating gap 5, and the accommodating gap 5 can be used to accommodate the expansion of the optical film layer 3, and no additional space needs to be reserved. Therefore, compared with the existing structure, the back panel 2 module structure of the present application reduces the reserved space between the back panel 2 and the optical film layer 3, and then the width of the first part 111 can be reduced, thereby realizing a narrow frame. At the same time, the distance between the edge of the first part 111 and the end of the optical film layer 3, that is, the amount of film pressing, is not reduced, ensuring that no bright line appears.

[0057] In some embodiments, see Figure 3 and Figure 4 As shown, the plurality of side frames 11 include a first side frame 12 and a second side frame 13 that are arranged opposite to each other, and an accommodation space 5 is provided between the back plate 2 and the first portion 111 of the first side frame 12 and the first portion 111 of the second side frame 13 .

[0058] Specifically, there is an accommodation gap 5 between the back panel 2 and the first part 111 of the first side frame 12 and the first part 111 of the second side frame 13, so that the width of the first side frame 12 and the second side frame 13 can both achieve narrow borders, which can also effectively reduce the size of the entire frame 1.

[0059] For example, taking the rubber frame 1 as a rectangular structure, the first side rubber frame 12 and the second side rubber frame 13 can be the two short sides of the rectangular structure or the two long sides of the rectangular structure, without any specific limitation, and can be selected according to actual needs.

[0060] When the first side rubber frame 12 and the second side rubber frame 13 are the two short sides of a rectangular structure, on the one hand, the widths of the first side rubber frame 12 and the second side rubber frame 1 can be reduced to achieve a narrow border; on the other hand, since the first side rubber frame 12 and the second side rubber frame 13 are short sides, their requirements for stability are not so high. Therefore, there is an accommodation interval 5 between the back plate 2 and the first part 111, that is, the back plate 2 does not support the first part 111 and will not have too much impact on its structural stability.

[0061] In this application, when there is an accommodation interval 5 between the back plate 2 and the first part 111 of the first side rubber frame 12 and the first part 111 of the second side rubber frame 13 which are oppositely arranged, the widths of the first side rubber frame 12 and the second side rubber frame 13 can be reduced, and at the same time, the size of the entire rubber frame 1 can also be reduced.

[0062] In some embodiments, such as Figure 4 and Figure 5 shown, the multiple side rubber frames 11 further include a third side rubber frame 14 and a fourth side rubber frame 15 which are oppositely arranged, and the back plate 2 is connected to the first part 111 of the third side rubber frame 14 and the first part 111 of the fourth side rubber frame 15.

[0063] Specifically, the back plate 2 is connected to the first part 111 of the third side rubber frame 14 and the first part 111 of the fourth side rubber frame 15. In this way, the back plate 2 can support the third side rubber frame 14 and the fourth side rubber frame 15 to ensure the structural stability of the third side rubber frame 14 and the fourth side rubber frame 15, and further improve the structural stability of the entire rubber frame 1.

[0064] Exemplarily, taking the rubber frame 1 as a rectangular structure, the third side rubber frame 14 and the fourth side rubber frame 15 can be the two long sides of the rectangular structure or the two short sides of the rectangular structure, and there is no specific limitation. It can be selected according to actual needs.

[0065] When the third side rubber frame 14 and the fourth side rubber frame 15 are the two long sides of the rectangular structure, the long sides have higher requirements for structural stability. Therefore, the connection between the back plate 2 and the first part 111 enables the back plate 2 to support the third side rubber frame 14 and the fourth side rubber frame 15 to ensure the structural stability of the third side rubber frame 14 and the fourth side rubber frame 15, and further improve the structural stability of the entire rubber frame 1.

[0066] In this application, there is an accommodation space between the back plate 2 and the first part 111 of the first side rubber frame 12 and the second side rubber frame 13. In this way, a narrow border of the first side rubber frame 12 and the second side rubber frame 13 can be achieved. At the same time, the back plate 2 is connected to the first part 111 of the third side rubber frame 14 and the fourth side rubber frame 15. In this way, the structural stability of the third side rubber frame 14 and the fourth side rubber frame 15 can be ensured, and further the backlight module takes into account both a narrow border and structural stability.

[0067] In some embodiments, referring still to Figure 3 as shown, the backplane 2 includes a vertical plate 21 and a horizontal plate 22. The vertical plate 21 is connected to each of the second portions 112, and the horizontal plate 22 is connected to the backlight surface 42 of the light guide plate 4.

[0068] Specifically, the vertical plate 21 is connected to each of the second portions 112. Further, the vertical plate 21 extends along a direction perpendicular to the plane where the optical film layer 3 is located, and the vertical plate 21 is connected to the side of each second portion 112 close to the light guide plate 4. In this way, the backplane 2 can support the second portion 112.

[0069] The horizontal plate 22 is connected to the backlight surface 42 of the light guide plate 4. In this way, the backplane 2 can support the light guide plate 4 and the optical film layer 3.

[0070] In this application, the backplane 2 can support the glue frame 1, the light guide plate 4, and the optical film layer 3, ensuring the structural stability of the entire backlight module.

[0071] In some embodiments, referring still to Figure 3 as shown, the vertical plate 21 includes two first sub - plates 213. The two first sub - plates 213 correspond to and are connected to the second portions 112 of the first - side glue frame 12 and the second - side glue frame 13 respectively. The orthographic projections of the first sub - plate 213 and the second sub - plate 212 on the first plane do not overlap with the orthographic projection of the optical film layer 3 on the first plane.

[0072] Specifically, the orthographic projections of the first sub - plate 213 and the second sub - plate 212 on the first plane do not overlap with the orthographic projection of the optical film layer 3 on the first plane. In this way, the first sub - plate 213, the second sub - plate 212, and the optical film layer 3 are arranged in an interleaved manner, so that the arrangements of the first sub - plate 213 and the second sub - plate 212 will not interfere with the thermal expansion of the optical film layer 3, ensuring that the ends of the optical film layer 3 can enter the accommodation space after thermal expansion.

[0073] In some embodiments, referring still to Figure 5 as shown, the vertical plate 21 further includes two second sub - plates 212. One of the second sub - plates 212 is connected to both the first portion 111 and the second portion 112 of the third - side glue frame 14, and the other second sub - plate 212 is connected to both the first portion 111 and the second portion 112 of the fourth - side glue frame 15. In this way, the two second sub - plates 212 can support the third - side glue frame 14 and the fourth - side glue frame 15, ensuring their structural stability.

[0074] Since there is an accommodation gap 5 between the first sub-board 213 and the first part 111, that is, the first sub-board 213 is only connected to the second part 112 and cannot support the first part 111. At this time, the connection strength between the first sub-board 213 and the second part 112 is particularly important. If the connection between the first sub-board 213 and the second part 112 is not firm enough, there is a high risk that the glue frame 1 will collapse.

[0075] Therefore, in this application, the first sub-board 213 is connected to the second part 112 by a buckle 211. By means of the connection of the buckle 211, the connection stability between the first sub-board 213 and the second part 112 is improved, and further the supporting effect of the backplane 2 on the glue frame 1 is enhanced.

[0076] In some embodiments, such as Figure 6 、 Figure 7 、 Figure 8 and Figure 9 shown, a card hole 1121 is provided on the side of the first sub-board 213 facing away from the light guide plate 4, and a buckle 211 cooperating with the card hole 1121 is provided on the side of the second part 112 close to the light guide plate 4; or a card hole 1121 is provided on the side of the second part 112 close to the light guide plate 4, and a buckle 211 cooperating with the card hole 1121 is provided on the side of the first sub-board 213 facing away from the light guide plate 4.

[0077] Specifically, as Figure 6 shown, a card hole 1121 is provided on the side of the second part 112 close to the light guide plate 4. As Figure 7 shown, a buckle 211 cooperating with the card hole 1121 is provided on the side of the first sub-board 213 facing away from the light guide plate 4.

[0078] Then, as Figure 8 and Figure 9 shown, the buckle 211 on the first sub-board 213 is inserted into the card hole 1121 of the second part 112 to realize the buckle 211 connection between the first sub-board 213 and the second part 112.

[0079] In this application, it is set that the first sub-board 213 is connected to the second part 112 by a buckle 211. By means of the connection of the buckle 211, the connection stability between the first sub-board 213 and the second part 112 is improved, and further the supporting effect of the backplane 2 on the glue frame 1 is enhanced, and further the structural stability of the glue frame 1 is improved, and the risk of the glue frame 1 collapsing is avoided.

[0080] In some embodiments, such as Figure 10As shown, the backlight module further includes a double-sided adhesive layer 6. The double-sided adhesive layer 6 is located between the second part 112 and the first sub-board 213 and is used to connect the second part 112 and the first sub-board 213. The orthographic projection of the double-sided adhesive layer 6 on the first plane does not overlap with the orthographic projections of the buckle 211 and the card hole 1121 on the first plane.

[0081] Specifically, the double-sided adhesive layer 6 is located between the second part 112 and the first sub-board 213 and is used to connect the second part 112 and the first sub-board 213. Through the bonding effect of the double-sided adhesive layer 6, the stability of the glue frame 1 is further improved.

[0082] In some embodiments, as Figure 11 shown, the backlight module further includes a side adhesive tape 7. One end of the side adhesive tape 7 is bonded to the second part 112, and the other end of the side adhesive tape 7 is connected to the side of the back plate 2 facing away from the light guide plate 4.

[0083] Specifically, one end of the side adhesive tape 7 is bonded to the second part 112, and the other end of the side adhesive tape 7 is connected to the side of the back plate 2 facing away from the light guide plate 4. In this way, through the tension of the side adhesive tape 7, the glue frame 1 is pulled, thereby improving the stability of the glue frame 1.

[0084] This application also provides a display module, as Figure 12 shown, the display module includes a display panel 8 and the backlight module described in any of the above embodiments. The first part 111 of the glue frame 1 of the backlight module is connected to the backlight side of the display panel 8.

[0085] Specifically, the display module further includes an edge glue layer 10. One end of the edge glue layer 10 covers the end of the display panel 8, and the other end is connected to the side of the back plate 2 facing away from the light guide plate 4. In this way, by encapsulating the periphery of the display module with the edge glue layer 10, the vibration deviation of the display module can be effectively prevented, and experimental verification shows that there is no problem with the vibration test of this display module.

[0086] In this application, by optimizing the structure of the backlight module, while ensuring the narrow bezel effect, bright lines can be effectively prevented. By means of the inward contraction of the vertical plate 21 of the back plate 2, an accommodation space 5 is formed between the vertical plate 21 and the first part 111 of at least one glue frame 1, thereby increasing the expansion space of the optical film layer 3 and preventing the generation of bright lines. And effective improvement measures are proposed for the possible collapse of the glue frame 1 caused by the inward contraction of the vertical plate 21 of the back plate 1, such as connecting the back plate 2 and the second part 112 of the glue frame 1 by buckles, adding the side adhesive tape 7 and adding a double-sided adhesive layer 6 between the side wall of the glue frame 1 and the back plate 2 for support to ensure the structural stability of the glue frame 1.

[0087] The present application also provides a display device, including the backlight module or the display module described in any of the above embodiments.

[0088] The display device may be a product with an image display function, such as: a monitor, a television, a billboard, a digital photo frame, a laser printer with a display function, a telephone, a mobile phone, a personal digital assistant (PDA), a digital camera, a portable video camera, a viewfinder, a navigator, a vehicle, a large-area wall, a household appliance, an information query device (such as a business query device, a monitor, etc. in departments such as e-government, banks, hospitals, and power).

[0089] The display device has the technical effects described in any of the above embodiments, which will not be elaborated herein.

[0090] Those of ordinary skill in the art should understand that: the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present application (including the claims) is limited to these examples; under the concept of the present application, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations in different aspects of the present application as described above, which are not provided in detail for the sake of brevity.

[0091] The embodiments of the present application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A backlight module, characterized in that, include: A light guide plate, comprising a light emitting surface and a backlight surface arranged opposite to each other; An optical film layer, disposed on the light emitting surface of the light guide plate; A plastic frame is arranged at intervals from the optical film layer, the plastic frame includes a plurality of side plastic frames connected in sequence end to end, each side plastic frame includes a first portion and a second portion, the first portion is arranged at intervals on a side of the optical film layer away from the light guide plate, and an orthographic projection of the first portion on the optical film layer covers an end of the optical film layer; The back panel is connected to each of the second parts and the backlight surface of the light guide plate, and has an accommodation space with the first part of at least one of the side plastic frames, the orthographic projection of the accommodation space on the first plane covers the orthographic projection of the optical film layer on the first plane, and the first plane is the plane where the second part is located.

2. The backlight module according to claim 1, wherein The plurality of side plastic frames include a first side plastic frame and a second side plastic frame that are arranged opposite to each other, and there is an accommodation space between the back plate and the first part of the first side plastic frame and the first part of the second side plastic frame.

3. The backlight module according to claim 2, wherein The plurality of side plastic frames further include a third side plastic frame and a fourth side plastic frame that are arranged opposite to each other, and the back plate is connected to the first portion of the third side plastic frame and the first portion of the fourth side plastic frame.

4. The backlight module according to claim 3, wherein The back plate includes a vertical plate and a horizontal plate, the vertical plate is connected to each of the second parts, and the horizontal plate is connected to the backlight surface of the light guide plate.

5. The backlight module according to claim 4, wherein The vertical plate includes two first sub-plates, which correspond to and are connected to the second part of the first side frame and the second part of the second side frame one by one, and the orthographic projection of the first sub-plate on the first plane has no overlap with the orthographic projection of the optical film layer on the first plane.

6. The backlight module according to claim 4, wherein The vertical plate further includes two second sub-plates, wherein one of the second sub-plates is connected to both the first portion and the second portion of the third side plastic frame, and the other second sub-plate is connected to both the first portion and the second portion of the fourth side plastic frame.

7. The backlight module according to claim 5, wherein A clamping hole is provided on a side of the first sub-plate facing away from the light guide plate, and a buckle matching with the clamping hole is provided on a side of the second part close to the light guide plate; Or a clamping hole is provided on a side of the second part close to the light guide plate, and a buckle matching with the clamping hole is provided on a side of the first sub-plate away from the light guide plate.

8. The backlight module according to claim 7, wherein It also includes a double-sided adhesive layer, which is located between the second part and the first sub-board and is used to connect the second part and the first sub-board. The orthographic projection of the double-sided adhesive layer on the first plane does not overlap with the orthographic projection of the buckle and the card hole on the first plane.

9. The backlight module according to claim 1, wherein, It also includes a side tape, one end of which is bonded to the second part, and the other end of which is connected to a side of the back plate away from the light guide plate.

10. A display module, characterized in that, It comprises a display panel and the backlight module according to any one of claims 1 to 9, wherein the first part of the rubber frame of the backlight module is connected to the backlight side of the display panel.

11. The display module according to claim 10, wherein, It also includes an edge glue layer, one end of which covers the end of the display panel, and the other end of which is connected to a side of the back plate away from the light guide plate.

12. A display device, characterized in that, It comprises the backlight module according to any one of claims 1 to 9 or the display module according to any one of claims 10 to 11.

Images