Display module and display device

Abstract

The utility model relates to the technical field of display devices, in particular to a display module and a display device. The objective of the utility model is to solve the problem that the optical element is upwarped due to expansion resistance. In order to achieve the purpose, the display module comprises an optical element and a frame, the optical element comprises a body and a lug plate arranged on the edge of the body, the optical element is installed on the frame, a first groove corresponding to the lug plate is formed in the inner wall of the frame, and the first groove can provide an expansion space for the lug plate when the optical element expands thermally. The ear plate is arranged on the body of the optical element, and the first groove corresponding to the ear plate is formed in the inner wall of the frame, so that when the optical element is heated and expands, the first groove can provide an expansion space for the optical element, the ear plate enters the first groove, the problem that the optical element upwarps due to the fact that expansion is blocked is avoided, and the service life of the optical element is prolonged. Therefore, the stability and reliability of the display module are improved, and the display effect of the display module is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of display devices, and particularly relates to a display module and a display device. Background Art

[0002] With the continuous maturity of the display technology field, the market demand for display modules is increasing, and users' requirements for the display screens of display modules are also continuously improving. However, based on the light-emitting principle of display modules, a large amount of heat is generated after the display modules work for a long time, causing a large expansion amount of optical elements in the display modules, such as optical films, diffusion plates, etc. Since the optical elements are in interference fit with the frame in the display module, the thermal expansion of the optical elements is hindered, resulting in warping problems. When the optical elements are warped, they will be squeezed against the middle frame of the display module, forming wrinkles, thereby affecting the display effect of the display module.

[0003] Correspondingly, a new technical solution is needed in this field to solve the above problems. Summary of the Utility Model

[0004] In order to solve at least one of the above problems in the prior art, that is, to solve the problem that the optical elements are warped due to hindered expansion. Based on this, the present application provides a display module, and the display module includes:

[0005] An optical element, the optical element includes a body and ear plates provided at the edge of the body;

[0006] A frame on which the optical element is installed, and a first groove corresponding to the ear plate is provided on the inner wall of the frame, and the first groove can provide an expansion space for the ear plate when the optical element thermally expands.

[0007] In a preferred technical solution of the above display module, the ear plates are provided at the first edge and / or the second edge of the body along a first direction; and / or

[0008] The ear plates are provided at the third edge and / or the fourth edge of the body along a second direction;

[0009] The first direction is perpendicular to the second direction.

[0010] In a preferred technical solution of the above display module, there is a gap between the ear plate and the top of the first groove in a third direction.

[0011] In a preferred technical solution of the above display module, the gap is in the range of 0.1 - 0.2 mm.

[0012] In a preferred technical solution of the above display module, the display module further includes:

[0013] A first elastic member, the first elastic member is disposed in the first groove, and a second groove matching with the ear plate is disposed on the first elastic member. The first elastic member can be squeezed when the optical element thermally expands, so as to provide an expansion space for the ear plate; or the first elastic member is disposed at the edge of the ear plate and extends circumferentially along the edge of the ear plate. The first elastic member can squeeze the first groove when the optical element thermally expands, so as to provide an expansion space for the ear plate; or

[0014] A plurality of first elastic members, the plurality of first elastic members are all disposed in the first groove, and are spaced along the groove wall of the first groove and form a second groove corresponding to the ear plate. It can be squeezed when the optical element thermally expands, so as to provide an expansion space for the ear plate; or the plurality of first elastic members are disposed at the edge of the ear plate and are circumferentially spaced along the edge of the ear plate. It can squeeze the first groove when the optical element thermally expands, so as to provide an expansion space for the ear plate.

[0015] In a preferred technical solution of the above display module, the optical element further includes a positioning plate, and the positioning plate is disposed at the edge of the body;

[0016] A third groove matching with the positioning plate is disposed on one side of the frame along the third direction, and the third groove extends to the inner wall of the frame.

[0017] In a preferred technical solution of the above display module, the display module further includes:

[0018] A second elastic member, the second elastic member is disposed in the third groove, and a fourth groove matching with the positioning plate is disposed on the second elastic member; or the second elastic member is disposed at the edge of the positioning plate and extends circumferentially along the edge of the positioning plate and forms a connecting block matching with the third groove with the positioning plate; or

[0019] A plurality of second elastic members, the plurality of second elastic members are all disposed in the third groove, and are spaced along the groove of the third groove and form a fourth groove matching with the positioning plate; or the plurality of second elastic members are disposed at the edge of the positioning plate and are circumferentially spaced along the edge of the positioning plate and form a connecting block matching with the third groove with the positioning plate.

[0020] In a preferred technical solution of the above display module, the positioning plate is disposed on the first edge and / or the second edge of the body along the first direction; and / or

[0021] The positioning plate is disposed on the third edge and / or the fourth edge of the body along the second direction.

[0022] In the preferred technical solution of the above display module, a boss extending along the circumferential direction thereof is formed on the inner wall of the frame, or a plurality of bosses spaced along the circumferential direction thereof are formed on the inner wall of the frame; and

[0023] The body is disposed on the tabletop of the boss; and

[0024] The tabletop of the boss is not lower than the bottom of the groove in the third direction.

[0025] In the preferred technical solution of the above display module, the body is bonded to the tabletop of the boss.

[0026] In the preferred technical solution of the above display module, the edge of the body is in interference fit with the inner wall of the frame.

[0027] In the preferred technical solution of the above display module, the edge of the body is in interference fit with the inner wall of the frame through a third elastic member.

[0028] In the preferred technical solution of the above display module, the interference value of the interference fit is in the range of 0.1 - 0.2 mm.

[0029] In the preferred technical solution of the above display module, the display module further includes a backlight module or a front light source module disposed on the frame.

[0030] In the preferred technical solution of the above display module, when a backlight module is disposed on the frame, the body includes a diffusion plate and an optical film disposed on a side of the diffusion plate away from the backlight module, and the ear plates are disposed on the diffusion plate and / or the optical film;

[0031] When a front light source module is disposed on the frame, the body includes a light guide plate and an optical film disposed on a side of the light guide plate away from the front light source module, and the ear plates are disposed on the light guide plate and / or the optical film, and the ear plates are disposed on the light guide plate and / or the optical film.

[0032] In the preferred technical solution of the above display module, the display module further includes:

[0033] A middle frame, the middle frame is disposed on one side of the frame along the third direction.

[0034] The present application further provides a display device, and the display device includes the display module described in the above preferred technical solution.

[0035] Those skilled in the art can understand that the display module of the present utility model is provided with ear plates on the body of the optical element, and the inner wall of the frame is provided with first grooves corresponding to the ear plates. When the optical element expands due to heat, the first grooves can provide expansion space for the optical element, enabling the ear plates to enter the first grooves, thereby avoiding the problem of the optical element warping due to blocked expansion, improving the stability and reliability of the display module, and ensuring the display effect of the display module.

[0036] Furthermore, by setting a gap between the ear plate and the top of the first groove in the third direction and setting the gap within the range of 0.1 - 0.2 mm, it can not only provide space for the optical element to expand in the third direction but also avoid the problem of the optical element warping during expansion due to an overly large gap.

[0037] Furthermore, by setting a first elastic member, when the optical element expands due to heat, the elastic member will be compressed to provide space for the expansion of the optical element. It can not only prevent the optical element from being hindered in expansion but also provide a pre-tightening force to enhance the installation stability of the optical element and avoid shaking.

[0038] Furthermore, by setting positioning plates at the edges of the body, it is not only beneficial to the installation of the optical element but also can improve the installation accuracy of the optical element.

[0039] Furthermore, by setting a second elastic member, it can provide a pre-tightening force for the positioning plates, enhance the connection firmness between the positioning plates and the frame, and further enhance the installation stability of the optical element, thereby being able to avoid the optical element from shaking and improving the display effect of the display module.

[0040] Furthermore, by the interference fit between the body and the frame, the installation stability of the body and the frame is improved, thereby being able to avoid the optical element from shaking and improving the display effect of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings, in which:

[0042] Figure 1 is a schematic diagram of the display module in the prior art without thermal expansion; Figure 1 ;

[0043] Figure 2 is a schematic diagram of the display module in the prior art during thermal expansion; Figure 2 ;

[0044] Figure 3 is a schematic diagram of the display module in the present application;

[0045] Figure 4 is a schematic diagram of the display module in the present application without a middle frame;

[0046] Figure 5 is Figure 4 a schematic cross-sectional view of;

[0047] Figure 6 is Figure 4 a partial cross-sectional schematic of Figure 1 ;

[0048] Figure 7 is Figure 4 a partial cross-sectional schematic of Figure 2 ;

[0049] Figure 8 is a partial schematic view of the ear plate in the present application;

[0050] Figure 9 is Figure 4 a partial cross-sectional schematic of Figure 3 ;

[0051] Figure 10 is a partial schematic view of the positioning plate in the present application.

[0052] The reference numerals are as follows:

[0053] 1. Optical element; 11. Body; 111. Diffusion plate; 112. Optical film; 12. Ear plate; 121. First ear plate; 122. Second ear plate; 13. Positioning plate; 131. First positioning plate; 132. Second positioning plate; 2. Frame; 21. First groove; 22. Third groove; 23. Boss; 3. First elastic block; 4. Second elastic block; 5. Third elastic block; 6. Middle frame; 7. Backlight module. Detailed implementation manners

[0054] The preferred implementation manners of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present application and are not intended to limit the protection scope of the present application.

[0055] It should be noted that in the description of the present application, the terms indicating directions or positional relationships such as "upper", "lower", "inner", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0056] In addition, it should be noted that in the description of the present application, unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0057] See Figure 1 and Figure 2 , in the prior art, the display module includes an optical element 1, a frame 2, a third elastic block 5, a middle frame 6, and a backlight module 7. One side of the frame 2 along the third direction (such as the Z direction shown in Figure 1 ) is provided with the backlight module 7, and the other side is provided with the middle frame 6. A boss 23 extending along the circumferential direction of the frame 2 is formed on the inner wall of the frame 2. The optical element 1 is fixed on the tabletop of the boss 23 through double-sided tape, so that it is located between the light source module and the middle frame 6. The edge of the optical element 1 along the first direction (such as the Y direction shown in Figure 1 ) and the inner wall of the frame 2 are in interference fit through the third elastic block 5, so that the optical element 1 is firmly arranged on the frame 2. However, when the optical element 1 expands greatly due to heat, the elastic block cannot be further squeezed, so that the expansion of the optical element 1 is hindered and the warping problem occurs. The warping of the optical element 1 will cause extrusion with the middle frame 6, resulting in wrinkles, thereby affecting the display effect of the display module.

[0058] Such as Figures 3 - 10 , in order to solve the problem that the optical element 1 warps due to the hindered expansion, the display module of the present application includes an optical element 1 and a frame 2. Among them, the optical element 1 includes a main body 11 and ear plates 12 arranged on the edge of the main body 11. The optical element 1 is installed on the frame 2, and a first groove 21 corresponding to the ear plates 12 is arranged on the inner wall of the frame 2. The first groove 21 can provide an expansion space for the ear plates 12 when the optical element 1 thermally expands.

[0059] Among them, the circumferential direction refers to the direction around the inner wall of the frame 2. For example, if the inner wall of the frame 2 is rectangular, the circumferential direction refers to the direction around the inner wall of the rectangular frame 2; if the inner wall of the frame 2 is circular, the circumferential direction refers to the direction around the inner wall of the circular frame 2.

[0060] In the present utility model, by providing ear plates 12 on the body 11 of the optical element 1 and providing first grooves 21 corresponding to the ear plates 12 on the inner wall of the frame 2, when the optical element 1 expands due to heat, the first grooves 21 can provide an expansion space for the optical element 1, enabling the ear plates 12 to enter the first grooves 21, thereby avoiding the problem that the optical element 1 warps due to blocked expansion, and further improving the stability and reliability of the display module and ensuring the display effect of the display module.

[0061] The following further refers to Figures 3 - 10 , and a preferred embodiment of the display module of the present application will be introduced. Those skilled in the art can understand that the following-described embodiments are only used to illustrate the principle of the present application and are not intended to limit the protection scope of the present application. On the premise that the display module includes at least the optical element 1 and the frame 2, those skilled in the art can adjust the following setting methods so that the present application can be applied to more specific application scenarios.

[0062] As Figures 3 - 10 , the display module includes an optical element 1, a frame 2, a second elastic block 4, a middle frame 6, and a backlight module 7. The backlight module 7 is provided on one side of the frame 2 along the third direction, and the middle frame 6 is provided on the other side. The optical element 1 is disposed within the frame 2 and is located between the backlight module 7 and the middle frame 6. The optical element 1 includes a body 11, a plurality of ear plates 12, and a plurality of positioning plates 13. The plurality of ear plates 12 and the plurality of positioning plates 13 are both provided on the first edge of the body 11 along the first direction (such as Figure 5 shown as the Y direction), and the two are alternately arranged at intervals. The body 11 includes a diffusion plate 111 and an optical film 112, and the optical film 112 is disposed on the side of the diffusion plate 111 away from the backlight module 7. The ear plate 12 includes a first ear plate 121 and a second ear plate 122. The first ear plate 121 is provided on the first edge of the diffusion plate 111 along the first direction. The first ear plate 121 and the diffusion plate 111 are integrally formed of the same material, which can scatter the light flux, make the light evenly distributed, and convert the line light source into a surface light source, thereby making the light more uniform and improving the display effect of the display module. The second ear plate 122 is provided on the first edge of the optical film 112 along the first direction. The second ear plate 122 and the optical film 112 are integrally formed of the same material, which can effectively weaken or eliminate the dark line phenomenon in the display module, improve the uniformity of the emitted light, and further improve the display effect of the display module. The plurality of first ear plates 121 and the second ear plates 122 correspond along the third direction (such as Figure 7 shown as the Z direction), and the corresponding first ear plates 121 and second ear plates 122 form the ear plate 12. Among them, the first direction and the second direction are perpendicular to each other.

[0063] Of course, the positions of the ear plates 12 and the positioning plates 13 in this application are not fixed, and those skilled in the art can adjust them as needed. For example, ear plates 12 can also be provided on both the first edge and the second edge of the body 11 along the first direction; or, ear plates 12 can be provided on the second edge of the body 11 along the first direction; or, ear plates 12 can be provided on both the third edge and / or the fourth edge of the body 11 along the second direction (such as Figure 5 shown as the X direction). And / or, a positioning plate 13 can be provided on the second edge of the body 11 along the first direction; or, a positioning plate 13 can be provided on the second edge of the body 11 along the first direction; or, positioning plates 13 can be provided on both the third edge and / or the fourth edge of the body 11 along the second direction. It should also be noted that the ear plates 12 and the positioning plates 13 can be provided on the same edge of the body 11, or they can also be provided on different edges of the body 11. For example, the ear plate 12 can be provided on the first edge of the body 11 along the first direction, and the positioning plate 13 can be provided on the second edge of the body 11 along the first direction. The second direction is perpendicular to the first direction.

[0064] In addition, there is no limit to the number of the ear plates 12 and the positioning plates 13 provided in this application, as long as the provision of the ear plates 12 can solve the problem of the expansion obstruction of the diffusion plate 111 and the optical film 112, and the positioning plate 13 can achieve the accurate positioning of the optical element 1. For example, the number of the ear plates 12 can be 1, 2, 3 or other numbers, and / or the number of the positioning plates 13 can be 1, 2, 3 or other numbers. Among them, when the number of the ear plates 12 is 1, the dimension of the ear plate 12 along the second direction can be set relatively larger compared with the case where the number of the ear plates 12 is 2 or more.

[0065] It should also be noted that in other preferred embodiments, the provision of the first ear plate 121 or the second ear plate 122 is not necessary, and those skilled in the art can choose according to their needs. For example, only the first ear plate 121 can be provided on the edge of the diffusion plate 111. Or only the second ear plate 122 can be provided on the edge of the optical film 112.

[0066] Then refer to Figure 9 and 10, the positioning plate 13 includes a first positioning plate 131 and a second positioning plate 132. The first positioning plate 131 is provided at the first edge of the diffusion plate 111 along the first direction, and the first positioning plate 131 and the diffusion plate 111 are integrally formed of the same material. The second positioning plate 132 is provided at the first edge of the optical film 112 along the first direction, and the second positioning plate 132 and the optical film 112 are integrally formed of the same material. The first positioning plate 131 and the second positioning plate 132 are correspondingly arranged along the third direction, and the first positioning plate 131 and the second positioning plate corresponding along the third direction form the positioning plate 13. On the one hand, the positioning plate 13 can prevent the optical element 1 from being installed reversely, and on the other hand, it can also improve the installation accuracy of the optical element 1.

[0067] It should be noted that in other preferred embodiments, the setting of the first positioning plate 131 or the second positioning plate 132 is not necessary either, and those skilled in the art can choose according to needs. When the first positioning plate 131 is not provided on the diffusion plate 111, accurate positioning can also be achieved through the second positioning plate 132 on the optical film 112. When the second positioning plate 132 is not provided on the optical film 112, accurate positioning can also be achieved through the first positioning plate 131 on the diffusion plate 111.

[0068] Next, refer to Figures 5 - 7 Figures 8 and 9. A plurality of first grooves 21 are formed on the inner wall of the frame 2. Among them, a plurality of first grooves 21 are all provided on the same inner wall of the frame 2 along the first direction, and the plurality of first grooves 21 correspond to the plurality of ear plates 12, so that when the optical element 1 expands, the first grooves 21 can provide an expansion space for the ear plates 12 to insert into the first grooves 21. Among them, the gap between the top of the first groove 21 and the optical film 112 in the third direction is in the range of 0.1 - 0.2 mm (including both end values), which can not only provide space for the optical element 1 to expand in the third direction, but also avoid the problem that the optical element 1 warps during expansion due to too large a gap. A plurality of third grooves 22 are formed on one side of the frame 2 along the third direction. The plurality of third grooves 22 correspond to and cooperate with the plurality of positioning plates 13 one by one. Each third groove 22 extends to the inner wall of the frame 2, so that the positioning plate 13 and the corresponding third groove 22 can be inserted into the corresponding third groove 22 from the notch of the third groove 22 in the third direction, thereby facilitating the installation of the optical element 1. The notch of the third groove 22 on the inner wall of the frame 2 and the notch of the first groove 21 on the inner wall of the frame 2 are provided on the same inner wall of the frame 2 along the first direction, so that the ear plates 12 correspond to the first grooves 21 one by one, and the positioning plates 13 correspond to and cooperate with the third grooves 22 one by one.

[0069] It should be noted that when the ear plate 12 and the positioning plate 13 are arranged on different edges of the main body 11, the first groove 21 and the third groove 22 are also arranged at different positions on the frame 2, so that the ear plate 12 corresponds to the first groove 21 and the positioning plate 13 cooperates with the third groove 22.

[0070] Next, referring to Figures 5 - 7 As shown in FIGS. 8 and 9, a boss 23 extending along the circumferential direction of the inner wall of the frame 2 is formed on the inner wall of the frame 2, and the main body 11 is arranged on the table surface of the boss 23, so as to play a supporting role for the main body 11. Double-sided tape is arranged on the table surface of the boss 23 away from the backlight module 7, so that the table surface is connected to the main body 11 through the double-sided tape. The first edge of the main body 11 in the first direction is in interference fit with the inner wall of the frame 2 through the third elastic block 5, and the interference value of the interference fit is in the range of 0.1-0.2 mm (including the two end values), so as to improve the installation stability of the optical element 1 and avoid the problem of shaking.

[0071] Of course, the setting form of the boss 23 in this application is not fixed, and those skilled in the art can adjust it according to needs. For example, a plurality of bosses 23 are formed on the inner wall of the frame 2, and the plurality of bosses 23 are arranged at intervals along the circumferential direction of the inner wall of the frame 2, so as to play a supporting role for the optical element 1, and double-sided tape is arranged on the table surfaces of these bosses 23 away from the backlight module 7.

[0072] In addition, the bonding method between the boss 23 and the main body 11 in this application is not fixed, and those skilled in the art can adjust it according to needs. For example, the table surface of the boss 23 is connected to the main body 11 through photosynthetic transparent glue. In addition, the setting position of the double-sided tape in this application is not fixed, and those skilled in the art can adjust it according to needs. For example, double-sided tape is arranged on the table surfaces of all the bosses 23, so that the main body 11 is connected to the table surface of the boss 23 through the double-sided tape. It should be noted that the specific setting form of the double-sided tape in this application is not limited, as long as the optical element 1 can be bonded to the table surface of the boss 23. For example, the double-sided tape can be VHB double-sided tape or DST double-sided tape.

[0073] Referring to Figure 10 As shown in FIG. 10, second elastic blocks 4 are arranged on both edges of the positioning plate 13 in the second direction, and the positioning plate 13 and the second elastic blocks 4 form a connecting block. When the connecting block is inserted into the third groove 22, the two sides of the connecting block in the second direction will be squeezed by the groove walls of the third groove 22, so that the positioning plate 13 is subjected to a pre-tightening force, thereby improving the installation firmness of the optical element 1 and avoiding the shaking of the optical element 1.

[0074] Of course, the setting method and form of the second elastic member in this application are not fixed, and those skilled in the art can select according to needs. For example, the second elastic block 4 is arranged in the third groove 22, and a fourth groove is arranged on the second elastic block 4 and is matched with the positioning plate 13; or the second elastic member is arranged at the edge of the positioning plate 13 and extends circumferentially along the edge of the positioning plate 13 to form a connecting block matched with the third groove 22 with the positioning plate 13; or a plurality of second elastic members are all arranged in the third groove 22 and form a fourth groove matched with the positioning plate 13; or a plurality of second elastic blocks 4 are all arranged in the third groove 22 and are arranged at intervals along the groove of the third groove 22 to form a fourth groove matched with the positioning plate 13. And / or, the second elastic member can also be a spring piece.

[0075] In other preferred embodiments, the setting of the positioning plate 13 is not necessary, and those skilled in the art can select according to needs. In the case where the positioning plate 13 is not provided, in order to facilitate improving the installation firmness, a first elastic block 3 can also be arranged in the first groove 21, and a second groove matched with the ear plate 12 is arranged on the first elastic block 3. The first elastic block 3 can be squeezed when the optical element 1 thermally expands to provide an expansion space for the ear plate 12, such as Figure 8 shown; or a first elastic block 3 is arranged at the edge of the ear plate 12, and the first elastic block 3 extends circumferentially along the edge of the ear plate 12. The first elastic block 3 can squeeze the first groove 21 when the optical element 1 thermally expands to provide an expansion space for the ear plate 12; or a plurality of first elastic blocks 3 are arranged in the first groove 21, and these first elastic blocks 3 are arranged at intervals along the groove wall of the first groove 21 to form a second groove corresponding to the ear plate 12, and it can be squeezed when the optical element 1 thermally expands to provide an expansion space for the ear plate 12; or a plurality of first elastic blocks 3 are arranged at the edge of the ear plate 12, and the plurality of first elastic blocks 3 are arranged at circumferential intervals along the edge of the ear plate 12, and it can squeeze the first groove 21 when the optical element 1 thermally expands to provide an expansion space for the ear plate 12.

[0076] It should be noted that in the display module of this application, the light source module can be a front light module in addition to the backlight module 7. The so-called backlight module 7 has a direct-lit light source layout relative to the optical element 1. The so-called front light module has a side-in light source layout relative to the optical element 1. Except for the different layouts of the light source modules and the replacement of the light guide plate with the diffusion plate 111, the other structures are the same and will not be described in detail here.

[0077] In addition, this application also provides a display device, and the display device includes the display module described in any of the above embodiments.

[0078] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments rather than other features, the combination of features of different embodiments means that it is within the scope of the present application and forms different embodiments. For example, in the claims of the present application, any one of the claimed embodiments can be used in any combination.

[0079] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principle of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present application.

Claims

1. A display module, characterized in that, The display module includes: An optical element, the optical element including a body and ear plates provided at the edge of the body; A frame on which the optical element is mounted, a first groove corresponding to the ear plates being provided on the inner wall of the frame, and the first groove being capable of providing an expansion space for the ear plates when the optical element thermally expands.

2. The display module according to claim 1, wherein The ear plates are provided at the first edge and / or the second edge of the body in a first direction; and / or The ear plates are provided at the third edge and / or the fourth edge of the body in a second direction; The first direction is perpendicular to the second direction.

3. The display module according to claim 1, wherein There is a gap between the ear plates and the top of the first groove in a third direction.

4. The display module according to claim 3, wherein The gap is in the range of 0.1 - 0.2 mm.

5. The display module according to claim 1, wherein The display module further includes: A first elastic member, the first elastic member being disposed in the first groove, and a second groove cooperating with the ear plates being provided on the first elastic member, the first elastic member being capable of being squeezed when the optical element thermally expands so as to provide an expansion space for the ear plates; or the first elastic member is disposed at the edge of the ear plates and extends circumferentially along the edge of the ear plates, the first elastic member being capable of squeezing the first groove when the optical element thermally expands so as to provide an expansion space for the ear plates; or A plurality of first elastic members, the plurality of first elastic members being all disposed in the first groove, and being spaced along the groove wall of the first groove and forming a second groove corresponding to the ear plates, which is capable of being squeezed when the optical element thermally expands so as to provide an expansion space for the ear plates; or the plurality of first elastic members are disposed at the edge of the ear plates and are circumferentially spaced along the edge of the ear plates, which is capable of squeezing the first groove when the optical element thermally expands so as to provide an expansion space for the ear plates.

6. The display module according to claim 1, wherein, The optical element further includes a positioning plate, the positioning plate being provided at the edge of the body; A third groove cooperating with the positioning plate is provided on one side of the frame in the third direction, and the third groove extends to the inner wall of the frame.

7. The display module according to claim 6, wherein The display module further includes: A second elastic member, the second elastic member being disposed in the third groove, and a fourth groove cooperating with the positioning plate being provided on the second elastic member; or the second elastic member is disposed at the edge of the positioning plate and extends circumferentially along the edge of the positioning plate and forms a connecting block cooperating with the third groove with the positioning plate; or A plurality of second elastic members, the plurality of second elastic members being all disposed in the third groove, and being spaced along the groove of the third groove and forming a fourth groove cooperating with the positioning plate; or the plurality of second elastic members are disposed at the edge of the positioning plate and are circumferentially spaced along the edge of the positioning plate and form a connecting block cooperating with the third groove with the positioning plate.

8. The display module according to claim 6, wherein The positioning plate is provided at the first edge and / or the second edge of the body in a first direction; and / or The positioning plate is provided at the third edge and / or the fourth edge of the body in a second direction.

9. The display module according to claim 1, wherein A boss extending circumferentially is formed on the inner wall of the frame, or a plurality of bosses spaced circumferentially are formed on the inner wall of the frame; and The body is disposed on the tabletop of the boss; and The tabletop of the boss is not lower than the bottom of the groove in the third direction.

10. The display module according to claim 9, wherein The body is bonded to the tabletop of the boss.

11. The display module according to claim 1, wherein, The edge of the body is in interference fit with the inner wall of the frame.

12. The display module according to claim 11, wherein, The edge of the body is in interference fit with the inner wall of the frame through a third elastic member.

13. The display module according to claim 11 or 12, wherein The interference value of the interference fit is in the range of 0.1 - 0.2 mm.

14. The display module according to claim 1, characterized in that The display module further includes a backlight module or a front light source module disposed on the frame.

15. The display module according to claim 14, wherein When a backlight module is disposed on the frame, the body includes a diffusion plate and an optical film disposed on a side of the diffusion plate away from the backlight module, and the lug is disposed on the diffusion plate and / or the optical film; When a front light source module is disposed on the frame, the body includes a light guide plate and an optical film disposed on a side of the light guide plate away from the front light source module, and the lug is disposed on the light guide plate and / or the optical film, and the lug is disposed on the light guide plate and / or the optical film.

16. The display module according to claim 1, characterized in that, The display module further includes: A middle frame disposed on one side of the frame in the third direction.

17. A display device, characterized in that, The display device includes the display module according to any one of claims 1 - 16.

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