Backlight module and display device

Abstract

The present disclosure provides a backlight module and a display device, and relates to the field of display technology. The display device includes a backlight module, a flexible circuit board, a tape and a support. The backlight module includes a back plate and a middle frame. The back plate includes a bottom plate and a side plate connected to the bottom plate, and the bottom plate and the side plate form a storage space. The middle frame includes a first middle frame portion configured to support a display panel and a second middle frame portion connected to the first middle frame portion. The second middle frame portion includes a first surface away from the bottom plate and a second surface away from the side plate, the first surface is provided with a first groove, and the second surface is provided with a second groove connected to the first groove. The flexible circuit board is connected to the display panel and extends along the first groove and the second groove to the side of the bottom plate away from the display panel. The tape is attached to the edge of the display panel, the first surface, the second surface, and the edge of the side of the bottom plate away from the display panel. The support is arranged between the flexible circuit board and the tape, and covers at least a portion of at least one of the first groove and the second groove.

Description

Technical Field

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

[0002] With the development of display technology, more and more displays are integrating display panels and touch panels.

[0003] In order to facilitate the bonding of the display panel and the touch panel, the display may adopt a structure of a back plate, a middle frame and a tape to replace the structure of a back plate, a middle frame and a front frame. Summary of the invention

[0004] According to one aspect of an embodiment of the present disclosure, a display device is provided, comprising: a backlight module, a flexible circuit board, a tape and a support. The backlight module comprises a back plate and a middle frame. The back plate comprises a bottom plate and a side plate connected to the bottom plate, and the bottom plate and the side plate form an accommodation space. The middle frame is fixed to the back plate, and comprises: a first middle frame portion configured to support a display panel and a second middle frame portion connected to the first middle frame portion. The second middle frame portion is at least partially disposed on a side of the side plate away from the accommodation space, and the second middle frame portion comprises a first surface away from the bottom plate and a second surface away from the side plate, the first surface is provided with a first groove, and the second surface is provided with a second groove connected to the first groove. The flexible circuit board is connected to the display panel and extends along the first groove and the second groove to a side of the bottom plate away from the display panel. The tape is attached to the edge of the display panel, the first surface, the second surface, and the edge of a side of the bottom plate away from the display panel. The support is disposed between the flexible circuit board and the tape, and the support covers at least a portion of at least one of the first groove and the second groove.

[0005] In some embodiments, the support member is bonded to the tape.

[0006] In some embodiments, the support member is embedded in the first groove and the second groove.

[0007] In some embodiments, the average stiffness of the support member is higher than the stiffness of the tape.

[0008] In some embodiments, the flexible circuit board includes a first portion extending along the first groove and a second portion extending along the second groove; the support member includes a first supporting portion and a second supporting portion other than the first supporting portion, and the first supporting portion covers the junction of the first portion and the second portion; the stiffness of the first supporting portion is greater than the stiffness of the tape and is less than the stiffness of the second supporting portion.

[0009] In some embodiments, the first supporting portion has a plurality of mutually non-intersecting gaps.

[0010] In some embodiments, the plurality of slits extend along the same direction.

[0011] In some embodiments, the material of the support member includes plastic.

[0012] In some embodiments, the plastic comprises polyethylene terephthalate.

[0013] In some embodiments, the display device further includes: a touch panel, which is bonded to the display panel and the portion of the tape attached to the first surface.

[0014] According to another aspect of an embodiment of the present disclosure, a backlight module is provided, comprising: a back plate, comprising: a bottom plate and a side plate connected to the bottom plate, the bottom plate and the side plate forming an accommodating space; a middle frame, fixed to the back plate, comprising: a first middle frame portion, configured to support a display panel, and a second middle frame portion connected to the first middle frame portion, at least partially arranged on a side of the side plate away from the accommodating space, the second middle frame portion comprising a first surface away from the bottom plate and a second surface away from the side plate, the first surface being provided with a first groove, and the second surface being provided with a second groove connected to the first groove; and a support member, detachably provided on the second middle frame portion, the support member covering at least a portion of at least one of the first groove and the second groove.

[0015] In some embodiments, the support member includes at least one of a first support body and a second support body, wherein: the first support body is detachably disposed on the first surface and covers at least a portion of the first groove, and the second support body is detachably disposed on the second surface and covers at least a portion of the second groove.

[0016] In some embodiments, the first surface has a first recessed portion and a second recessed portion adjacent to the first groove, the first recessed portion is located on a first side of the first groove, and the second recessed portion is located on a second side of the first groove opposite to the first side; the first support body is disposed on the first recessed portion and the second recessed portion.

[0017] In some embodiments, a surface of the first support body away from the bottom plate is flush with the first surface.

[0018] In some embodiments, the first support body includes a plurality of first support rods, a first end of each first support rod is detachably disposed on a first side of the first slot, and a second end of each first support rod is detachably disposed on a second side of the first slot opposite to the first side.

[0019] In some embodiments, the second surface has a third recessed portion and a fourth recessed portion adjacent to the second groove, the third recessed portion is located on a first side of the second groove, and the fourth recessed portion is located on a second side of the second groove opposite to the first side of the second groove; the second support body is disposed on the third recessed portion and the fourth recessed portion.

[0020] In some embodiments, a surface of the second support body away from the side plate is flush with the second surface.

[0021] In some embodiments, the second support body includes a plurality of second support rods, a first end of each second support rod is detachably disposed on a first side of the second slot, and a second end of each second support rod is detachably disposed on a second side of the second slot opposite to the first side of the second slot.

[0022] According to another aspect of the embodiments of the present disclosure, a display device is provided, comprising: a backlight module as described in any one of the above embodiments; a display panel supported by the first middle frame portion; a flexible circuit board connected to the display panel and extending along the first groove and the second groove to a side of a bottom plate away from the display panel; and tape attached to an edge of the display panel, the first surface, the second surface, and an edge of a side of the bottom plate away from the display panel.

[0023] In some embodiments, the display device further includes: a touch panel, which is bonded to the display panel and the portion of the tape attached to the first surface.

[0024] In the display device provided by the embodiment of the present disclosure, a support member is provided between the flexible circuit board and the tape. The support member covers at least a portion of at least one of the first groove and the second groove. Such a structure can achieve at least one of the following effects: reducing the wrinkles of the tape caused by the existence of the first groove, improving the flatness of the tape above the first groove; preventing the part of the flexible circuit board located in the second groove from warping, so that when the display device is placed in a groove of a specific size, the flexible circuit board will not be squeezed by the side wall of the groove, thereby not causing the part of the display panel connected to the flexible circuit board to warp, thereby improving the display effect of the display device.

[0025] Other features, aspects and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constitute a part of this specification, which illustrate exemplary embodiments of the present disclosure and, together with the description, are used to explain the principles of the present disclosure. In the drawings:

[0027] Figure 1Ais a schematic structural diagram showing a display device according to an embodiment of the present disclosure;

[0028] Figure 1B yes Figure 1A A partial top view schematic diagram of the display device shown;

[0029] Figure 1C yes Figure 1A A schematic diagram of a partial structure of the display device shown;

[0030] Figure 2 is a schematic diagram showing bonding of a support member and an adhesive tape according to an embodiment of the present disclosure;

[0031] Figure 3 is a schematic diagram showing bonding between a support member and an adhesive tape according to another embodiment of the present disclosure;

[0032] Figure 4A is a schematic structural diagram showing a backlight module according to an embodiment of the present disclosure;

[0033] Figure 4B is a partial top view schematic diagram showing a backlight module according to an embodiment of the present disclosure;

[0034] Figure 5A is a schematic structural diagram showing a first support body according to an implementation of the present disclosure;

[0035] Figure 5B is a schematic structural diagram showing a second support body according to an implementation of the present disclosure;

[0036] Fig. 6A is a schematic diagram showing the installation of a first support body and a first surface according to an implementation of the present disclosure;

[0037] Figure 6B is a schematic diagram showing the installation of the second support body and the second surface according to an implementation of the present disclosure;

[0038] Fig. 7A is a schematic structural diagram showing a first support body according to another implementation of the present disclosure;

[0039] Figure 7B is a schematic structural diagram showing a second support body according to another implementation of the present disclosure;

[0040] Figure 8 is a schematic structural diagram showing a display device according to another embodiment of the present disclosure.

[0041] It should be understood that the size of each part shown in the accompanying drawings is not necessarily drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0042] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary and not as limiting.

[0043] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprises" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] In the present disclosure, when a specific component is described as being located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When a specific component is described as being connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0045] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0046] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0047] The inventors noticed that the top and sides of the middle frame are provided with grooves for placing flexible printed circuit boards (FPCs). Due to the existence of the grooves, the tape is easily wrinkled after being attached to the flexible printed circuit board, resulting in uneven tape on the middle frame, thus affecting the adhesion of the display panel and the touch panel.

[0048] In addition, due to the characteristics of the flexible circuit board itself, the part of the flexible circuit board located in the groove on the side of the middle frame is prone to deformation, thereby bulging out of the groove. For the car display, when the car display is placed in a groove of a specific size in the car, the bulging flexible circuit board will be squeezed by the side wall of the groove, thereby causing the part of the display panel in the car display that is connected to the flexible circuit board to warp up, affecting the display effect of the car display.

[0049] In order to solve at least one of the above problems, the embodiments of the present disclosure provide the following technical solutions.

[0050] Figure 1A is a schematic structural diagram showing a display device according to an embodiment of the present disclosure.

[0051] like Figure 1A As shown, the display device may include a backlight module 11 , a display panel 12 , a flexible circuit board 13 , an adhesive tape 14 and a support member 15 .

[0052] Figure 1B yes Figure 1A A partial top view of the display device is shown. Figure 1C yes Figure 1B The partial structural diagram of the display device shown is shown. It should be noted that: Figure 1B and Figure 1C The adhesive tape 14 and the support member 15 are not shown. Figure 1C It can be seen that without the support member 15 , the flexible circuit board 13 will warp.

[0053] Combine the following Figure 1A , Figure 1B and Figure 1C A display device according to some embodiments of the present disclosure is introduced.

[0054] The backlight module 11 includes a back plate 101 and a middle frame 102. Here, the material of the back plate 101 may include metals such as iron and aluminum, or plastic. The back plate 101 includes a bottom plate 111 and a side plate 121 forming an accommodating space 103. Here, the bottom plate 111 is connected to the side plate 121. For example, the bottom plate 111 and the side plate 121 may be arranged substantially vertically.

[0055] The accommodation space 103 may be provided with Figure 1A Components such as the light guide plate, light source, and optical film are not shown. For example, the optical film can be arranged on the side of the light guide plate away from the first middle frame portion 111. For example, the light source can be arranged between the light guide plate and the side plate 121, that is, the light source is a side-entry light source. In some embodiments, a bottom reflector can be arranged between the light guide plate and the bottom plate 111. In some embodiments, a heat sink can be arranged between the light source and the side plate 121.

[0056] In some embodiments, a diffuser, a light source, an optical film and other components may be disposed in the accommodation space 103. In this case, the light source may be disposed between the diffuser and the bottom plate 111, that is, the light source is a direct-down light source. In some embodiments, a bottom reflector may be disposed between the light source and the bottom plate 111.

[0057] The middle frame 102 is fixed to the back panel 101. For example, the middle frame 102 can be connected to the side panel 121 by snapping. For another example, the middle frame 102 can be connected to the side panel 121 by a connecting layer such as a tape. Of course, the embodiments of the present disclosure are not limited thereto, and the middle frame 102 and the back panel 101 can also be fixed by other methods.

[0058] The middle frame 102 includes a first middle frame portion 112 and a second middle frame portion 122 connected to the first middle frame portion 112. Figure 1C , the first middle frame portion 112 is disposed between the display panel 12 and the side plate 121. The second middle frame portion 122 is at least partially disposed on a side of the side plate 121 away from the accommodating space 103. As an example, the extension direction of the first middle frame portion 112 can be regarded as parallel to the surface of the display panel 12, and the extension direction of the second middle frame portion 122 can be regarded as perpendicular to the surface of the display panel 12.

[0059] The first middle frame portion 112 is configured to support the display panel 12. It should be understood that the first middle frame portion 112 can also be configured to fix the optical film. The second middle frame portion 122 includes a first surface S1 away from the bottom plate 111 and a second surface S2 away from the side plate 121. Figure 1B and Figure 1C The first surface S1 is provided with a first groove V1, and the second surface S2 is provided with a second groove V2 connected to the first groove V1, as shown in FIG. Figure 1A and Figure 1B Here, the first groove V1 and the second groove V2 may be, for example, U-shaped grooves or the like.

[0060] The flexible circuit board 13 is connected to the display panel 12. The flexible circuit board 13 extends along the first groove V1 and the second groove V2 to the side of the bottom plate 111 away from the display panel 12. It should be understood that since the flexible circuit board 13 is not visible, the flexible circuit board 13 is shown as being represented by double dashed lines. The dashed line on the lower side of the portion of the flexible circuit board 13 located in the first groove V1 represents the bottom of the first groove V1, and the dashed line on the left side of the portion of the flexible circuit board 13 located in the second groove V2 represents the bottom of the second groove V2.

[0061] The tape 14 is attached to the edge of the display panel 12, the first surface S1, the second surface S2, and the edge of the side of the bottom plate 111 away from the display panel 12. It should be understood that the tape 14 is used to fix the display panel 12, the middle frame 102 and the back plate 101 together.

[0062] The support member 15 is disposed between the flexible circuit board 13 and the tape 14. Here, the support member 15 covers at least a portion of at least one of the first groove V1 and the second groove V2.

[0063] For example, the support member 15 may only cover a portion or all of the first groove V1, but not the second groove V2. In some embodiments, the support member 15 may be embedded in the first groove V1. For example, a surface of the support member 15 away from the bottom plate 111 is substantially flush with the first surface S1.

[0064] For another example, the support member 15 may only cover a portion or all of the second groove V2, but not the first groove V1. In some embodiments, the support member 15 may be embedded in the second groove V2. For example, a side of the support member 15 away from the side plate 121 is substantially flush with the second surface S2.

[0065] For another example, the support member 15 may cover both the first groove V1 and the second groove V2. In some embodiments, the support member 15 may be embedded in the first groove V1 and the second groove V2. For example, the side of the support member 15 covering the first groove V1 away from the bottom plate 111 is substantially flush with the first surface S1, and the side of the support member 15 covering the second groove V2 away from the side plate 121 is substantially flush with the second surface S2.

[0066] In the above embodiment, a support member 15 is provided between the flexible circuit board 13 and the tape 14. The support member 15 covers at least a portion of at least one of the first groove V1 and the second groove V2. Such a structure can achieve at least one of the following effects: reducing the wrinkles of the tape 14 caused by the existence of the first groove V1, and improving the flatness of the tape 14 above the first groove V1; preventing the part of the flexible circuit board 13 located in the second groove V2 from warping, so that when the display device is placed in a groove of a specific size, the flexible circuit board 13 will not be squeezed by the side wall of the groove, thereby not causing the part of the display panel 12 connected to the flexible circuit board 13 to warp, thereby improving the display effect of the display device. In addition, in the case of preventing the part of the flexible circuit board 13 located in the second groove V2 from warping, it can also help reduce the wrinkles of the tape 14 and further improve the flatness of the tape 14 above the first groove V1.

[0067] In some embodiments, the display device may further include a touch panel. The touch panel is bonded to the display panel 12 and the portion of the tape 14 attached to the first surface S1. For example, the touch panel may be bonded to the display panel 12 and the portion of the tape 14 attached to the first surface S1 through OCA (Optical Clear Adhesive) or OCR (Optical Clear Resin). Here, the touch panel may be bonded to a portion or all of the portion of the tape 14 attached to the first surface S1. It should be understood that when bonding the touch panel to the display panel 12, it is necessary to apply OCA or OCR to both the display panel 12 and the portion of the tape 14 attached to the first surface S1. Since the tape 14 has good flatness, it will not affect the bonding of the touch panel with the display panel 12.

[0068] In some embodiments, the support member 15 can be bonded to the tape 14. Figure 2 In some other embodiments, the support member 15 can be detachably arranged on the side plate 121. This will be described in conjunction with an embodiment of the backlight module.

[0069] Figure 2 Schematic diagram showing bonding between a support member and an adhesive tape according to an embodiment of the present disclosure.

[0070] like Figure 2 As shown, the support member 15 may be bonded to the tape 14. When the tape 14 bonded with the support member 15 is attached to the first surface S1 and the second surface S2, the support member 15 may cover at least a portion of at least one of the first groove V1 and the second groove V2.

[0071] In some embodiments, the average stiffness of the support member 15 is higher than the stiffness of the tape 14, so that the tape 14 is less likely to wrinkle, and the portion of the flexible circuit board 13 located in the second groove V2 can be more effectively blocked from tilting. It should be understood that the stiffness here can be understood as the ability to resist deformation by external forces. In some implementations, the material of the support member 15 may include plastic, such as polyethylene terephthalate (PET), etc.

[0072] When the support member 15 covers both the first groove V1 and the second groove V2, for example, when embedded in the first groove V1 and the second groove V2, the support member 15 needs to be bent. The support member 15 is prone to warping at the bend, which may cause the adhesive tape 14 to be uneven at the bend of the support member 15. In order to prevent the support member 15 from warping at the bend, the embodiment of the present disclosure also provides the following solution.

[0073] Figure 3 is a schematic diagram showing bonding between a support member and an adhesive tape according to another embodiment of the present disclosure.

[0074] like Figure 3 As shown, the support member 15 includes a first support portion 151 and a second support portion 152 other than the first support portion 151. In other words, all parts other than the first support portion 151 are the second support portion 152. Here, the rigidity of the first support portion 151 is greater than the rigidity of the adhesive tape 14, and is smaller than the rigidity of the second support portion 152.

[0075] See also Figure 1A and Figure 1C The flexible circuit board 13 includes a first portion extending along the first groove V1 (i.e., the portion located in the first groove V1) and a second portion extending along the second groove V2 (i.e., the portion located in the second groove V2). The first support portion 151 may cover the adjacent portion between the first portion and the second portion of the flexible circuit board 13. In other words, the support member 15 is bent at the first support portion 151.

[0076] In the above embodiment, the rigidity of the bending part of the support member 15 is smaller, so that the support member 15 can be prevented from tilting at the bending part, thereby further improving the flatness of the adhesive tape 14.

[0077] In some embodiments, see Figure 3 , the first support portion 151 may have a plurality of slits L that do not intersect each other. Here, the slits L may penetrate the first support portion 151 or may not penetrate the first support portion 151. For example, the first support portion 151 may be cut to cut through the first support portion 151, thereby forming a cutting stripe that penetrates the first support portion 151, that is, forming the slits L. For another example, the first support portion 151 may be cut but not cut through the first support portion 151, thereby forming a cutting stripe that does not penetrate the first support portion 151, that is, forming the slits L. Referring to FIG. 1 , the slits L may be provided at the bend of the support member 15. In the case where the first support portion 151 and the second support portion 152 are made of the same material, since the first support portion 151 has a plurality of slits L that do not intersect each other, the rigidity of the first support portion 151 may be made smaller than the rigidity of the second support portion 152.

[0078] In some embodiments, the plurality of slits L extend in the same direction. For example, a bending line is formed at the bending portion of the support member 15, and the plurality of slits L may all extend in a direction parallel to the direction in which the bending line extends. Such a structure is more conducive to stress release of the support member 15, thereby better preventing the support member 15 from warping at the bending portion.

[0079] It should be understood that Figure 3The manner shown is only an exemplary manner and is not intended to limit the present disclosure. For example, in other embodiments, other manners may be used to make the rigidity of the first support portion 151 smaller than the rigidity of the second support portion 152. For example, the first support portion 151 and the second support portion 152 are made of different materials, and the rigidity of the material of the first support portion 151 is smaller than the rigidity of the material of the second support portion 152.

[0080] Figure 4A It is a schematic diagram showing the structure of a backlight module according to an embodiment of the present disclosure.

[0081] like Figure 4A The backlight module includes a back plate 101, a middle frame 102 and a support member 15. Here, the material of the back plate 101 may include metals such as iron and aluminum, or plastic.

[0082] Figure 4B 1 is a partial top view schematic diagram showing a backlight module according to an embodiment of the present disclosure. Here, in order to clearly show the structure of the backlight module, Figure 4B The support member 15 is not shown. In addition, in order to show the relationship between the middle frame 102, the display panel 12 and the flexible circuit board 13, Figure 4B A display panel 12 and a flexible circuit board 13 are also schematically shown.

[0083] See also Figure 4A and Figure 4B The back plate 101 includes a bottom plate 111 and a side plate 121 forming an accommodation space 103. Here, the bottom plate 111 is connected to the side plate 121. For example, the bottom plate 111 and the side plate 121 can be arranged substantially vertically. Figure 4A Components such as the light guide plate, light source, and optical film are not shown. For example, the optical film can be arranged on the side of the light guide plate away from the first middle frame portion 111. For example, the light source can be arranged between the light guide plate and the side plate 121, that is, the light source is a side-entry light source. In some embodiments, a bottom reflector can be arranged between the light guide plate and the bottom plate 111. In some embodiments, a heat sink can be arranged between the light source and the side plate 121.

[0084] In some embodiments, a diffuser, a light source, an optical film and other components may be disposed in the accommodation space 103. In this case, the light source may be disposed between the diffuser and the bottom plate 111, that is, the light source is a direct-down light source. In some embodiments, a bottom reflector may be disposed between the light source and the bottom plate 111.

[0085] The middle frame 102 is fixed to the back panel 101. For example, the middle frame 102 can be connected to the side panel 121 by snapping. For another example, the middle frame 102 can be connected to the side panel 121 by a connecting layer such as a tape. Of course, the embodiments of the present disclosure are not limited thereto, and the middle frame 102 and the back panel 101 can also be fixed by other methods.

[0086] The middle frame 102 includes a first middle frame portion 112 and a second middle frame portion 122 connected to the first middle frame portion 112. The second middle frame portion 122 is at least partially disposed on a side of the side plate 121 away from the accommodating space 103. As an example, the extension direction of the first middle frame portion 112 can be considered to be parallel to the surface of the display panel 12, and the extension direction of the second middle frame portion 122 can be considered to be perpendicular to the surface of the display panel 12.

[0087] The first middle frame portion 112 is configured to support the display panel 12. It should be understood that the first middle frame portion 112 can also be configured to fix the optical film. The second middle frame portion 122 includes a first surface S1 away from the bottom plate 111 and a second surface S2 away from the side plate 121. Figure 4A As shown. The first surface S1 is provided with a first groove V1, and the second surface S2 is provided with a second groove V2 connected to the first groove V1. Here, the first groove V1 and the second groove V2 may be, for example, U-shaped grooves. The first groove V1 and the second groove V2 are configured to place the flexible circuit board 13.

[0088] The support member 15 is detachably disposed on the second middle frame portion 122. The support member 15 covers at least a portion of at least one of the first groove V1 and the second groove V2.

[0089] For example, the support member 15 may only cover a portion or all of the first groove V1, but not the second groove V2. In some embodiments, the support member 15 may be embedded in the first groove V1. For example, a surface of the support member 15 away from the bottom plate 111 is substantially flush with the first surface S1.

[0090] For another example, the support member 15 may only cover a portion or all of the second groove V2, but not the first groove V1. In some embodiments, the support member 15 may be embedded in the second groove V2. For example, a side of the support member 15 away from the side plate 121 is substantially flush with the second surface S2.

[0091] For another example, the support member 15 may cover both the first groove V1 and the second groove V2. In some embodiments, the support member 15 may be embedded in the first groove V1 and the second groove V2. For example, the side of the support member 15 covering the first groove V1 away from the bottom plate 111 is substantially flush with the first surface S1, and the side of the support member 15 covering the second groove V2 away from the side plate 121 is substantially flush with the second surface S2.

[0092] In the above embodiment, a detachable support member 15 is provided on the second middle frame portion 121. The support member 15 covers at least a portion of at least one of the first groove V1 and the second groove V2. Such a backlight module can achieve at least one of the following effects: reducing the wrinkles of the tape 14 in the display device due to the existence of the first groove V1, and improving the flatness of the tape 14 above the first groove V1; blocking the part of the flexible circuit board 13 in the display device located in the second groove V2 from warping, so that when the display device is placed in a groove of a specific size, the flexible circuit board 13 will not be squeezed by the side wall of the groove, so that the part of the display panel 12 connected to the flexible circuit board 13 will not be warped, thereby improving the display effect of the display device. In addition, in the case of blocking the part of the flexible circuit board 13 located in the second groove V2 from warping, it can also help reduce the wrinkles of the tape 14 and further improve the flatness of the tape 14 above the first groove V1.

[0093] Combine the following Figure 5A , Figure 5B , Fig. 6A and Figure 6B Different implementations of the support member 15 are introduced.

[0094] In some implementations, the support member 15 may include at least one of a first support body 153 and a second support body 154. Figure 5A and Figure 5B The first support body 153 and the second support body 154 are introduced. In some implementations, at least one of the first support body 153 and the second support body 154 is made of the same material as the middle frame 102 .

[0095] Figure 5A is a schematic structural diagram showing a first support body according to an implementation method of the present disclosure.

[0096] like Figure 5A As shown, the first support body 153 is detachably disposed on the first surface S1 and covers at least a portion of the first groove V1. Figure 5A In the vertical direction of the first groove V1, the size of the first support body 153 can be slightly smaller than the size of the first groove V1 to avoid exceeding the side plate 122. For example, in the direction perpendicular to the extension direction of the first groove V1 (such as Figure 5A In the horizontal direction), the size of the first support body 153 can be slightly larger than the size of the first groove V1.

[0097] Figure 5B is a schematic structural diagram showing a second support body according to an implementation of the present disclosure.

[0098] like Figure 5BAs shown, the second support body 154 is detachably disposed on the second surface S2 and covers at least a portion of the second groove V2.

[0099] Fig. 6A is a schematic diagram showing the installation of the first support body and the first surface according to an implementation of the present disclosure. Here, in order to more clearly show the structure of the first surface S1, Fig. 6A The state where the first support body 153 is separated from the first surface S1 is shown.

[0100] like Fig. 6A As shown, the first surface S1 has a first concave portion R1 and a second concave portion R2 adjacent to the first groove V1, the first concave portion R1 is located on a first side (e.g., the left side) of the first groove V1, and the second concave portion R2 is located on a second side (e.g., the right side) of the first groove V1 opposite to the first side. The first support 153 is disposed on the first concave portion R1 and the second concave portion R2. For example, a side of the first support 153 away from the bottom plate 111 is substantially flush with the first surface S1.

[0101] Figure 6B is a schematic diagram showing the installation of the second support body and the second surface according to an implementation of the present disclosure. Here, in order to more clearly show the structure of the second surface S2, Figure 6B The second support body 154 is shown in a state separated from the second surface S2.

[0102] like Figure 6B As shown, the second surface S2 has a third concave portion R3 and a fourth concave portion R4 adjacent to the second groove V2, the third concave portion R3 is located on a first side (e.g., the left side) of the second groove V2, and the fourth concave portion R4 is located on a second side (e.g., the right side) of the second groove V2 opposite to the first side of the second groove V2. The second support body 154 is disposed on the third concave portion R3 and the fourth concave portion R4. For example, a side of the second support body 154 away from the side plate 121 is substantially flush with the second surface S2.

[0103] In the case of a small frame size, the first support body 153 and the second support body 154 can be implemented by using support rods. Fig. 7A and Figure 7B Provide explanation.

[0104] Fig. 7A is a schematic structural diagram showing a first support body according to another implementation of the present disclosure.

[0105] like Fig. 7AAs shown, the first support body 153 may include a plurality of first support rods 153A. The first end of each first support rod 153A is detachably disposed on a first side (e.g., the left side) of the first slot V1, and the second end of each first support rod 153 is detachably disposed on a second side (e.g., the right side) of the first slot V1 opposite to the first side. The first support rod 153A may be, for example, cylindrical or other columnar shapes. In some implementations, the material of the first support rod 153A may include plastic or metal.

[0106] In some embodiments, a plurality of first support rods 153A may be arranged in parallel to support the tape 14 more evenly, thereby reducing wrinkles of the tape 14. In some embodiments, the distances between adjacent first support rods 153A may be the same, to further support the tape more evenly, thereby further reducing wrinkles of the tape 14.

[0107] Figure 7B is a schematic structural diagram showing a second support body according to another implementation of the present disclosure.

[0108] like Figure 7B As shown, the second support body 154 may include a plurality of second support rods 154A. The first end of each second support rod 154A is detachably disposed on a first side (e.g., the left side) of the second slot V2, and the second end of each second support rod 154A is detachably disposed on a second side (e.g., the right side) of the second slot V2 opposite to the first side of the second slot V2. The second support rod 154A may be, for example, cylindrical or other columnar shapes. In some implementations, the material of the second support rod 154A may include plastic or metal.

[0109] In some embodiments, a plurality of second support rods 154A may be arranged in parallel. In some embodiments, the distances between adjacent second support rods 154A may be the same.

[0110] Figure 8 is a schematic structural diagram showing a display device according to another embodiment of the present disclosure.

[0111] The display device includes a backlight module according to any one of the above embodiments, a display panel 12 , a flexible circuit board 13 and an adhesive tape 14 .

[0112] The display panel 12 is supported by the first middle frame portion 112 of the backlight module.

[0113] The flexible circuit board 13 is connected to the display panel 12 . The flexible circuit board 13 extends along the first groove V1 and the second groove V2 to a side of the bottom plate 111 away from the display panel 12 .

[0114] The tape 14 is attached to the edge of the display panel 12 , the first surface S1 , the second surface S2 , and the edge of a side of the bottom plate 111 away from the display panel 12 .

[0115] It should be understood that when assembling the backlight module into a display device, the support member 15 of the backlight module can be removed first, and then the flexible circuit board 13 is placed in the first groove V1 and the second groove V2, and then the support member 15 is fixed to the second middle frame portion 122.

[0116] In some embodiments, the display device may further include a touch panel attached to the display panel 12 and the portion of the tape 14 attached to the first surface S1 .

[0117] The display device provided in the embodiments of the present disclosure may be, for example, a mobile terminal, a television, a display (such as a car display), a laptop computer, a digital photo frame, a navigator, an electronic paper, or any other product or component with a display function.

[0118] So far, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here.

[0119] Although some specific embodiments of the present disclosure have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A display device, comprising: Backlight module, including: A back plate, comprising: a bottom plate and a side plate connected to the bottom plate, wherein the bottom plate and the side plate form a containing space, and The middle frame is fixed to the back plate and includes: a first middle frame portion configured to support the display panel, and A second middle frame portion connected to the first middle frame portion, at least partially disposed on a side of the side plate away from the accommodating space, the second middle frame portion comprising a first surface away from the bottom plate and a second surface away from the side plate, the first surface being provided with a first groove, and the second surface being provided with a second groove communicating with the first groove; A flexible circuit board connected to the display panel and extending along the first groove and the second groove to a side of the bottom plate away from the display panel; an adhesive tape attached to an edge of the display panel, the first surface, the second surface, and an edge of a side of the bottom plate away from the display panel; and A support member is disposed between the flexible circuit board and the adhesive tape, and covers at least a portion of at least one of the first groove and the second groove.

2. The display device according to claim 1, wherein: The support member is bonded to the adhesive tape.

3. The display device according to claim 1, wherein: The support member is embedded in the first groove and the second groove.

4. The display device according to claim 2, wherein: The average stiffness of the support member is higher than the stiffness of the adhesive tape.

5. The display device according to claim 4, wherein: The flexible circuit board includes a first portion extending along the first groove and a second portion extending along the second groove; The support member includes a first support portion and a second support portion other than the first support portion, wherein the first support portion covers a junction between the first portion and the second portion; The rigidity of the first supporting portion is greater than the rigidity of the adhesive tape and is smaller than the rigidity of the second supporting portion.

6. The display device according to claim 5, wherein: The first supporting portion has a plurality of gaps which do not intersect each other.

7. The display device according to claim 6, wherein: The plurality of slits extend along the same direction.

8. The display device according to claim 1, wherein: The material of the support member includes plastic.

9. The display device according to claim 8, wherein: The plastic includes polyethylene terephthalate.

10. The display device according to any one of claims 1 to 9, further comprising: The touch panel is bonded to the display panel and the portion of the adhesive tape attached to the first surface.

11. A display device, comprising a backlight module, the backlight module comprising: A back plate, comprising: a bottom plate and a side plate connected to the bottom plate, wherein the bottom plate and the side plate form a containing space; The middle frame is fixed to the back plate and includes: a first middle frame portion configured to support the display panel, and a second middle frame portion connected to the first middle frame portion, at least partially disposed on a side of the side plate away from the accommodating space, the second middle frame portion comprising a first surface away from the bottom plate and a second surface away from the side plate, the first surface being provided with a first groove, and the second surface being provided with a second groove communicating with the first groove; and a support member, detachably disposed on the second middle frame portion, the support member covering at least a portion of at least one of the first groove and the second groove; The display device further includes: A display panel supported by the first middle frame portion; a flexible circuit board connected to the display panel and extending along the first groove and the second groove to a side of the bottom plate away from the display panel; and The adhesive tape is attached to the edge of the display panel, the first surface, the second surface, and the edge of the side of the bottom plate away from the display panel.

12. The display device according to claim 11, wherein: The support member includes at least one of a first support body and a second support body, wherein: The first support body is detachably disposed on the first surface and covers at least a portion of the first groove. The second support body is detachably disposed on the second surface and covers at least a portion of the second groove.

13. The display device according to claim 12, wherein: The first surface has a first concave portion and a second concave portion adjacent to the first groove, the first concave portion is located on a first side of the first groove, and the second concave portion is located on a second side of the first groove opposite to the first side; The first support body is disposed on the first concave portion and the second concave portion.

14. The display device according to claim 13, wherein: A surface of the first support body away from the bottom plate is flush with the first surface.

15. The display device according to claim 12, wherein: The first support body includes a plurality of first support rods, wherein a first end of each first support rod is detachably disposed on a first side of the first slot, and a second end of each first support rod is detachably disposed on a second side of the first slot opposite to the first side.

16. The display device according to any one of claims 12 to 15, wherein: The second surface has a third recessed portion and a fourth recessed portion adjacent to the second groove, the third recessed portion is located on a first side of the second groove, and the fourth recessed portion is located on a second side of the second groove opposite to the first side of the second groove; The second support body is disposed on the third recessed portion and the fourth recessed portion.

17. The display device according to claim 16, wherein: A surface of the second support body away from the side plate is flush with the second surface.

18. The display device according to claim 12, wherein: The second support body includes a plurality of second support rods, wherein a first end of each second support rod is detachably disposed on a first side of the second slot, and a second end of each second support rod is detachably disposed on a second side of the second slot opposite to the first side of the second slot.

19. The display device according to any one of claims 11 to 15, further comprising: The touch panel is bonded to the display panel and the portion of the adhesive tape attached to the first surface.

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