Display modules and electronic devices

Abstract

This application provides a display module and an electronic device. The display module includes a liquid crystal panel and a housing assembly. The housing assembly is mounted on one side of the liquid crystal panel, and the side of the housing assembly closest to the liquid crystal panel has a clearance space. The display module provided in this application reduces or eliminates the pressure exerted by the housing assembly on the liquid crystal panel on the contact surface by providing a clearance space on the side of the housing assembly closest to the liquid crystal panel; in other words, there is a gap between a portion of the housing assembly and the liquid crystal panel; or, to put it another way, a portion of the housing assembly cannot directly contact the liquid crystal panel. This reduces or eliminates light leakage due to pressure, thereby improving the display performance of the display module.

Description

Technical Field

[0001] This application belongs to the field of electronic equipment technology, specifically relating to display modules and electronic equipment. Background Technology

[0002] In a display module, the LCD panel needs to be assembled with a housing. However, when the housing is mounted on the LCD panel, the housing can easily exert pressure on the LCD panel, causing the liquid crystal inside the LCD panel to tilt, resulting in light leakage due to pressure and reducing the display performance of the display module. Summary of the Invention

[0003] In view of this, the first aspect of this application provides a display module, the display module including a liquid crystal panel and a housing assembly, the housing assembly being mounted on one side of the liquid crystal panel, and the side of the housing assembly close to the liquid crystal panel having clearance space.

[0004] The display module provided in the first aspect of this application has a clearance space on the side of the housing assembly close to the liquid crystal panel; in other words, there is a gap between a part of the housing assembly and the liquid crystal panel; or, the part of the housing assembly cannot directly contact the liquid crystal panel, so as to reduce or eliminate the pressure force of the housing assembly on the liquid crystal panel on the contact surface, thereby reducing or eliminating the light leakage phenomenon, and thus improving the display performance of the display module.

[0005] The housing assembly includes a shrinkable layer and a housing, wherein the shrinkable layer is closer to the liquid crystal panel than the housing; wherein the shrinkable layer can shrink under a first preset condition, so that the shrinkable layer is recessed to the side closer to the liquid crystal panel, or the shrinkable layer and the housing as a whole are recessed in a direction away from the liquid crystal panel, thereby providing the clearance space for the housing assembly.

[0006] The housing assembly includes a stretching layer and a housing, wherein the stretching layer is farther away from the liquid crystal panel than the housing; wherein the stretching layer can be stretched under a second preset condition so that the housing and the stretching layer as a whole are recessed in a direction away from the liquid crystal panel, thereby providing the clearance space for the housing assembly.

[0007] The housing assembly further includes a stretching layer disposed on the side of the housing away from the shrinking layer; wherein the stretching layer can be stretched under a second preset condition; when the shrinking layer shrinks, the stretching layer can also be stretched so that the shrinking layer, the housing, and the stretching layer as a whole are recessed in a direction away from the liquid crystal panel;

[0008] The shrinkage layer includes a plurality of sub-shrinkage layers spaced apart, and the stretching layer includes a plurality of sub-stretching layers spaced apart, with each sub-shrinkage layer corresponding to the spaced interval between two adjacent sub-stretching layers.

[0009] The housing has a first direction and a second direction perpendicular to the first direction, and the display module satisfies at least one of the following conditions;

[0010] The sub-shrinkage layer and the sub-stretching layer are disposed along the first direction;

[0011] The sub-shrinkage layer and the sub-stretching layer are disposed along the second direction.

[0012] The shrinkage layer is flexible, and the side surface of the shrinkage layer near the liquid crystal panel is used to abut against the liquid crystal panel.

[0013] The display module further includes a buffer component, which is disposed between the liquid crystal panel and the housing assembly.

[0014] The buffer includes a plurality of sub-buffers spaced apart, and the orthographic projection of the sub-buffers on the housing assembly is located outside the clearance space.

[0015] The housing assembly includes a supporting surface and a recessed surface on the side surface near the liquid crystal panel. The supporting surface is bent and connected to the periphery of the recessed surface. The supporting surface is used to support the liquid crystal panel, and the recessed surface forms the clearance space.

[0016] A second aspect of this application provides an electronic device, the electronic device including a housing, a processor, and a display module as provided in the first aspect of this application, the processor being disposed within the housing, the display module being disposed within the housing, and the processor being electrically connected to the display module.

[0017] The electronic device provided in the second aspect of this application, by adopting the display module provided in the first aspect, provides a clearance space on the side of the housing assembly close to the liquid crystal panel; in other words, there is a gap between a portion of the housing assembly and the liquid crystal panel; or, in other words, a portion of the housing assembly cannot directly contact the liquid crystal panel, so as to reduce or eliminate the pressure force of the housing assembly on the liquid crystal panel on the contact surface, thereby reducing or eliminating the light leakage phenomenon caused by pressure, and thus improving the display performance of the electronic device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0019] Figure 1 This is an exploded view of the structure of a display module in related technologies.

[0020] Figure 2 This is a three-dimensional structural diagram of a display module in related technologies.

[0021] Figure 3 This is a schematic diagram of the structure of a display module in related technologies.

[0022] Figure 4 This is a schematic diagram of the structure of a display module in related technologies.

[0023] Figure 5 This is a schematic diagram of the structure of a display module provided in one embodiment of this application.

[0024] Figure 6 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0025] Figure 7 This is a schematic diagram of the structure of a housing assembly provided in one embodiment of this application.

[0026] Figure 8 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0027] Figure 9 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0028] Figure 10 A schematic diagram of the structure of a housing assembly provided for another embodiment of this application.

[0029] Figure 11 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0030] Figure 12 This is a schematic diagram of the structure of a housing assembly provided in another embodiment of this application.

[0031] Figure 13 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0032] Figure 14 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0033] Figure 15 This is a schematic diagram of the structure of a housing assembly provided in another embodiment of this application.

[0034] Figure 16 This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer as orthographically projected onto the shell according to an embodiment of this application.

[0035] Figure 17 This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer projected onto the shell in another embodiment of this application.

[0036] Figure 18This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer projected onto the shell in another embodiment of this application.

[0037] Figure 19 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0038] Figure 20 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0039] Figure 21 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0040] Figure 22 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0041] Label Explanation:

[0042] Display module-1, LCD panel-10, polarizer-101, filter-102, thin film transistor-103, housing assembly-11, clearance space-11a, support surface-11b, recessed surface-11c, shrinkage layer-111, sub-shrinkage layer-1111, housing-112, stretching layer-113, sub-stretching layer-1131, fastener-12, backlight assembly-13, buffer-15, sub-buffer-151. Detailed Implementation

[0043] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0044] Before introducing the technical solution of this application, let's go over the technical issues in related technologies in detail.

[0045] Please refer to this as well. Figures 1-4 , Figure 1 This is an exploded view of the structure of a display module in related technologies. Figure 2 This is a three-dimensional structural diagram of a display module in related technologies. Figure 3 This is a schematic diagram of the structure of a display module in related technologies. Figure 4 This is a schematic diagram of the structure of a display module in related technologies. It should be noted that... Figure 1 and Figure 2 The casing is not shown in the diagram. Figure 4 It can also be understood as Figure 2 In the side view, the backlight assembly 13 is located inside the housing 112, so Figure 4 The backlight component 13 is not visible.

[0046] In related technologies, firstly, the housing 112 is prone to warping during manufacturing and transportation. Furthermore, when the housing 112 is assembled with the liquid crystal panel 10, the housing 112 and the liquid crystal panel 10 will come into contact with each other, further exacerbating the warping of the housing 112 and increasing the contact stress generated on the contact surface of the housing 112 with the liquid crystal panel 10 (e.g., ...). Figure 4 As shown in F in the figure, this causes light leakage due to compression, which reduces the display performance of display module 1.

[0047] For example, in related technologies, in-plane-switching (IPS) type LCD panels are prone to light leakage due to pressure. Firstly, compared to traditional multi-quadrant vertical alignment (VA) screens, IPS screens offer advantages such as faster response times, wider viewing angles, more realistic colors, superior picture quality, no water ripples when touched, environmental friendliness, energy saving, and accurate color reproduction. IPS screens have become the mainstream in the current market.

[0048] However, because the liquid crystals in the IPS-type LCD panel 10 are arranged horizontally, when subjected to external pressure, the liquid crystal molecules slightly sink downwards, affecting the direction of light emission and causing light leakage due to pressure. Therefore, because the liquid crystals in the IPS-type LCD panel 10 are arranged horizontally, the IPS-type LCD panel 10 is prone to light leakage due to pressure after being assembled with the housing 112.

[0049] For example, in related technologies, both the backlight assembly 13 and the liquid crystal panel 10 are mounted on a housing 112. The housing 112 includes a first part and a second part that are bent and connected. The liquid crystal panel 10 and the backlight assembly 13 are respectively disposed on opposite sides of the first part. The second part and the backlight assembly 13 are located on the same side of the first part, and the liquid crystal panel 10 is mounted on the first part, while the backlight assembly 13 is mounted on the second part.

[0050] The backlight assembly 13 includes an optical film, a light guide plate, a reflective sheet, and a backplate (B / C). The optical film and the backplate surround and form an accommodating space. The light guide plate and the reflective sheet are both disposed within the accommodating space, with the light guide plate closer to the optical film than the reflective sheet. The optical film is disposed on the side of the first portion facing away from the liquid crystal panel 10, and the backplate is mounted on the second portion.

[0051] Because the backplate is made of stamped metal, it inherently has a certain degree of warpage. Therefore, during the assembly process of the backlight assembly 13 onto the housing 112, the housing 112 will also exhibit some warpage after assembly with the backplate. Simultaneously, at the engagement point between the backplate and the housing 112, localized stress will also pull on the housing 112, causing warpage. Therefore, mounting the backlight assembly 13 onto the housing 112 will further exacerbate the warpage of the housing 112, further increasing the contact stress generated on the contact surface of the housing 112 with the liquid crystal panel 10, further aggravating the light leakage phenomenon, and further reducing the display performance of the display module 1.

[0052] In summary, when the housing 112 comes into contact with the liquid crystal panel 10, it cannot maintain a flat state and will partially bulge outward, which will put pressure on the liquid crystal panel 10, resulting in light leakage due to pressure. Based on the above reasons, this application provides a structure to improve the light leakage due to pressure of the liquid crystal panel 10, eliminate the limitations of the display module 1 in the currently commonly used method, and improve the limitation of light leakage due to pressure caused by the flatness of the backlight assembly 13.

[0053] Please refer to this as well. Figures 5-6 , Figure 5 This is a schematic diagram of the structure of a display module provided in one embodiment of this application. Figure 6 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. This embodiment provides a display module 1, which includes a liquid crystal panel 10 and a housing assembly 11. The housing assembly 11 is mounted on one side of the liquid crystal panel 10, and the side of the housing assembly 11 closest to the liquid crystal panel 10 has a clearance space 11a.

[0054] Furthermore, the terms “including” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion.

[0055] The display module 1 provided in this embodiment can be used to display images and information. Optionally, the display module 1 is applied to a liquid crystal display module (LCM), electronic devices, etc. For example, in-plane-switching (IPS), twisted nematic (TN), or multi-quadrant vertical alignment (VA) LCDs.

[0056] The display module 1 provided in this embodiment includes a liquid crystal panel 10, which is used in conjunction with other components to display images and information. The liquid crystal panel 10 includes a liquid crystal layer, and the liquid crystal in the liquid crystal layer can be deflected to cooperate with the backlight unit (BLU) of the display module 1, thereby causing the display module 1 to emit light or not emit light. Optionally, the liquid crystal panel 10 includes a polarizer 101, a filter 102, and a thin film transistor (TFT) stacked in sequence. The liquid crystal panel 10 also includes another polarizer 101 disposed on the side of the thin film transistor 103 opposite to the filter 102. The other polarizer 101 and the housing assembly 11 are both disposed on the same side of the thin film transistor 103.

[0057] The display module 1 provided in this embodiment also includes a housing assembly 11 for fixing and protecting the liquid crystal panel 10 and other components of the display module 1, such as the backlight assembly 13. The material of the housing assembly 11 includes, but is not limited to, plastic and rubber. For example, polycarbonate (PC) and polyethylene terephthalate (PET). This embodiment does not limit the shape of the housing assembly 11. The shape of the housing assembly 11 includes, but is not limited to, a square, plate, cuboid, rectangle, trapezoid, etc.

[0058] Optionally, the display module 1 further includes a fixing member 12. The fixing member 12 can be understood as a front frame, and its shape includes, but is not limited to, a square, plate, cuboid, rectangle, trapezoid, etc. The fixing member 12 is mounted on one side of the liquid crystal panel 10, and the housing assembly 11 is mounted on the side of the liquid crystal panel 10 opposite to the fixing member 12; wherein, the fixing member 12 is mounted on one side of the polarizer 101, and the housing assembly 11 is mounted on one side of the thin-film transistor 103. At least a portion of the fixing member 12 is located on the side of the polarizer 101 opposite to the filter 102, and at least a portion of the housing assembly 11 is located on the side of the thin-film transistor 103 opposite to the filter 102.

[0059] The housing assembly 11 has a clearance space 11a, which allows for a gap between a portion of the liquid crystal panel 10 and a portion of the housing assembly 11. The housing assembly 11 has a clearance groove on the side near the liquid crystal panel 10; alternatively, the housing assembly 11 has a clearance hole on the side near the liquid crystal panel 10. For example, the side of the housing assembly 11 near the liquid crystal panel 10 protrudes in a direction away from the liquid crystal panel 10. Yet another example is that the entire housing assembly 11 protrudes in a direction away from the liquid crystal panel 10.

[0060] The display module 1 provided in this embodiment has a clearance space 11a on the side of the housing assembly 11 close to the liquid crystal panel 10; in other words, there is a gap between a part of the housing assembly 11 and the liquid crystal panel 10; or, the part of the housing assembly 11 cannot directly contact the liquid crystal panel 10, so as to reduce or eliminate the pressure force of the housing assembly 11 on the liquid crystal panel 10 on the contact surface, thereby reducing or eliminating the light leakage phenomenon, and thus improving the display performance of the display module 1.

[0061] In other words, by providing the housing assembly 11 with a clearance space 11a, this embodiment reduces or eliminates the local outward arching of the housing assembly 11 caused by assembly and its own flatness, or in other words, reduces or eliminates the local warping of the housing assembly 11 caused by assembly and its own flatness, thereby reducing or eliminating the contact stress of the outward arch on the liquid crystal panel 10, and achieving the purpose of reducing or eliminating pressure leakage.

[0062] Please refer to this as well. Figures 7-9 , Figure 7 This is a schematic diagram of the structure of a housing assembly provided in one embodiment of this application. Figure 8 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. Figure 9 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0063] In one embodiment, the housing assembly 11 includes a shrinkable layer 111 and a housing 112, wherein the shrinkable layer 111 is closer to the liquid crystal panel 10 than the housing 112; wherein the shrinkable layer 111 can shrink under a first preset condition, so that the shrinkable layer 111 is recessed to the side closer to the liquid crystal panel 10, or the shrinkable layer 111 and the housing 112 are recessed in a direction away from the liquid crystal panel 10, thereby giving the housing assembly 11 the clearance space 11a.

[0064] The housing assembly 11 provided in this embodiment includes a shrinkable layer 111, which can shrink under a first preset condition (the shrinkage direction of the shrinkable layer 111 is as follows). Figure 8 and Figure 9As shown in direction D1, the shrinkage layer 111 is recessed towards the side surface of the liquid crystal panel 10, or the shrinkage layer 111 and the housing 112 as a whole are recessed away from the liquid crystal panel 10. In other words, the shrinkage layer 111 can shrink under a first preset condition, reducing the surface area of ​​the shrinkage layer 111. The first preset condition here includes, but is not limited to, preset temperature, preset voltage, etc. This embodiment does not limit the shape and thickness of the shrinkage layer 111. The shape of the shrinkage layer 111 includes, but is not limited to, a square, a plate, a cuboid, a rectangle, a trapezoid, etc. The shrinkage layer 111 can cover the side of the housing 112 near the liquid crystal panel 10; the shrinkage layer 111 can also be partially disposed on the side of the housing 112 near the liquid crystal panel 10.

[0065] Optionally, the material of the shrinkage layer 111 may be a heat-shrinkable material, a metal material, a rubber material, a foam material, etc. Optionally, the material of the shrinkage layer 111 may include at least one of iron, copper, aluminum, nitrile rubber, silicone rubber, butadiene rubber, fluororubber, polyurethane rubber, acrylate rubber, ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), and polyethylene (PE).

[0066] The housing assembly 11 provided in this embodiment also includes a housing 112 for fixing the liquid crystal panel 10 and other components of the display module 1, such as the backlight assembly 13. The housing 112 can be understood as a mid-frame (M / F). The material of the housing 112 includes, but is not limited to, plastic and rubber. For example, polycarbonate (PC), polyethylene terephthalate (PET), etc. The shape of the housing 112 includes, but is not limited to, a square, plate, cuboid, rectangle, trapezoid, etc. Optionally, the shape of the shrinkage layer 111 is the same as or approximately the same as the shape of the housing 112.

[0067] For example, the shrinkage layer 111 and the shell 112 can be integrally molded structural components. Alternatively, the shrinkage layer 111 and the shell 112 can be injection molded together. Or, for another example, the shrinkage layer 111 and the shell 112 can be separate structural components. The shrinkage layer 111 is coated on one side of the shell 112.

[0068] In one embodiment, the clearance space 11a can be formed by a recess in the shrinkage layer 111 on the side near the liquid crystal panel 10, moving away from the liquid crystal panel 10. In other words, the clearance space 11a is formed by the recess formed on the surface of the shrinkage layer 111 on the side near the liquid crystal panel 10. In another embodiment, the clearance space 11a can be formed by the shrinkage layer 111 and the housing 112 as a whole, both recessed in the direction away from the liquid crystal panel 10. In other words, the clearance space 11a is formed by the recess formed by the shrinkage layer 111 and the housing 112 as a whole.

[0069] Optionally, after the shrinkage layer 111 absorbs a preset heat, the shrinkage layer 111 heats up to a first preset temperature and shrinks, so that the shrinkage layer 111 is close to the side surface of the liquid crystal panel 10, or the shrinkage layer 111 and the housing 112 are recessed in a direction away from the liquid crystal panel 10, and the housing assembly 11 has the clearance space 11a. When the shrinkage layer 111 cools down to a second preset temperature, the shrinkage layer 111 returns to its original shape, so that the shrinkage layer 111 abuts against the liquid crystal panel 10.

[0070] Optionally, the display module 1 further includes a backlight assembly 13, which is located on the same side of the liquid crystal panel 10 as the housing assembly 11; wherein the backlight assembly 13 can provide heat, and the shrinkage layer 111 can absorb the heat and shrink. The backlight assembly 13 is mounted on the housing 112. The sidewall of the housing 112 forms a receiving space, and the backlight assembly 13 is mounted on the inner sidewall of the receiving space. The backlight assembly 13 is snap-fitted to the inner sidewall of the receiving space, so that the backlight assembly 13 is fixed to the housing 112.

[0071] This embodiment provides a shrinkage layer 111, which can shrink under a first preset condition, thereby creating a clearance space 11a on the side of the housing assembly 11 closest to the liquid crystal panel 10. This arrangement allows the user to adjust the housing assembly 11 to form the clearance space 11a as needed, reducing or eliminating the pressure exerted by the housing assembly 11 on the liquid crystal panel 10 at the contact surface, thereby reducing or eliminating light leakage due to pressure and improving the display performance of the display module 1.

[0072] Alternatively, the user can restore the shrinkage layer 111 to its original shape, that is, make the shrinkage layer 111 abut against the liquid crystal panel 10. In other words, the user can adjust the housing assembly 11 as needed to make the clearance space 11a disappear.

[0073] Please refer to this as well. Figures 10-11 , Figure 10 A schematic diagram of the structure of a housing assembly provided for another embodiment of this application. Figure 11 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0074] In one embodiment, the housing assembly 11 includes a stretching layer 113 and a housing 112, wherein the stretching layer 113 is farther away from the liquid crystal panel 10 relative to the housing 112; wherein the stretching layer 113 can be stretched under a second preset condition so that the housing 112 and the stretching layer 113 are recessed in a direction away from the liquid crystal panel 10, thereby giving the housing assembly 11 the clearance space 11a.

[0075] The housing assembly 11 provided in this embodiment includes a stretching layer 113, which can be stretched under a second preset condition (the shrinkage direction of the shrinkage layer 111 is as follows). Figure 11 As shown in the D2 direction, the housing 112 and the stretching layer 113 are recessed in a direction away from the liquid crystal panel 10. In other words, the stretching layer 113 can be stretched under a second preset condition to increase its surface area. The second preset condition includes, but is not limited to, preset temperature and preset voltage. Optionally, the first preset condition is the same as the second preset condition. This embodiment does not limit the shape or thickness of the stretching layer 113. Optionally, the stretching layer 113 is flexible.

[0076] Optionally, the material of the stretch layer 113 is a thermally expanding material, a negative thermal expansion (NTE) material, a metal material, a rubber material, a foam material, etc. Optionally, the material of the stretch layer 113 includes at least one of antimony, bismuth, gallium, nitrile rubber, silicone rubber, butadiene rubber, fluororubber, polyurethane rubber, acrylic rubber, ethylene-vinyl acetate copolymer (EVA), polyurethane (PU), polyethylene (PE), and NTE materials. The stretch layer 113 can be prepared by compounding rubber or plastic materials with NTE materials. Optionally, the NTE materials include the ABO3 series (A is a divalent or tetravalent cation, such as Pb, Bi, etc.; B is a tetravalent or divalent ion, such as Ti, Ni, etc.), the AVO5 series (A is a pentavalent cation, such as Nb, Ta, etc.); the AM2O7 series (A is a tetravalent cation, such as Zr, Hf, etc.; M is V, P, etc.); A2M3O 12 Series (A represents trivalent cations, such as Y, Al, Fe, Cr, etc.; M represents W, Mo, etc.); A₂P₂MO 12 Series (A for Zr, Hf, etc.; M for W, Mo, etc.); AZr4P6O 24 Series (A represents Ca, Sr, Ba, etc.); Magnetic compound series; Mn3XN series (X represents Zn, Ga, Cu, etc.); FeM series (M represents Ni, Mn, etc.); Cyanide series: A(CN)2 (A represents Zn, Cd, etc.); Fluoride series: AF x(A represents Zn, Sc, etc.; x represents 2 or 3). Further optionally, the NTE material is ZrW2O8.

[0077] The shape of the stretching layer 113 includes, but is not limited to, a square, a plate, a cuboid, a rectangle, a trapezoid, etc. The stretching layer 113 may cover the side of the housing 112 away from the liquid crystal panel 10; the stretching layer 113 may also be partially disposed on the side of the housing 112 away from the liquid crystal panel 10.

[0078] For example, the housing 112 and the stretching layer 113 can be integrally formed structural components. Alternatively, the housing 112 and the stretching layer 113 can be injection molded together. Yet another example is that the housing 112 and the stretching layer 113 can be separate structural components. The stretching layer 113 is coated on the side of the housing 112 facing away from the liquid crystal panel 10.

[0079] The clearance space 11a can be formed by the housing 112 and the stretching layer 113 being recessed in a direction away from the liquid crystal panel 10. In other words, the clearance space 11a is formed by the recess formed by the housing 112 and the stretching layer 113.

[0080] Optionally, after the stretching layer 113 absorbs a preset heat, the stretching layer 113 heats up to a third preset temperature and stretches, so that the housing 112 and the stretching layer 113 are recessed in a direction away from the liquid crystal panel 10, and the housing assembly 11 has the clearance space 11a. When the stretching layer 113 cools down to a fourth preset temperature, the stretching layer 113 returns to its original shape, so that the housing 112 abuts against the liquid crystal panel 10.

[0081] This embodiment provides a stretching layer 113, which can be stretched under a second preset condition, causing the housing 112 and the stretching layer 113 to be concave as a whole. This makes it easier for the housing assembly 11 to form a clearance space 11a. This arrangement allows the user to adjust the housing assembly 11 to form the clearance space 11a as needed, thereby reducing or eliminating the pressure exerted by the housing assembly 11 on the contact surface of the liquid crystal panel 10, thus reducing or eliminating light leakage due to pressure, and improving the display performance of the display module 1.

[0082] In addition, the user can also restore the deformation of the stretch layer 113; in other words, the user can adjust the housing assembly 11 as needed to make the clearance space 11a disappear.

[0083] Please refer to this as well. Figures 12-13 , Figure 12 This is a schematic diagram of the structure of a housing assembly provided in another embodiment of this application. Figure 13 This is a schematic diagram of the structure of a display module provided in another embodiment of this application.

[0084] In one embodiment, the housing assembly 11 further includes a stretching layer 113 disposed on the side of the housing 112 away from the shrinking layer 111; wherein the stretching layer 113 can be stretched under a second preset condition; when the shrinking layer 111 shrinks, the stretching layer 113 can also be stretched, so that the shrinking layer 111, the housing 112, and the stretching layer 113 as a whole are recessed in a direction away from the liquid crystal panel 10.

[0085] For example, the shrinkage layer 111, the housing 112, and the stretching layer 113 can be integrally formed structural components. Alternatively, the shrinkage layer 111, the housing 112, and the stretching layer 113 can be injection molded together. Or, for another example, the shrinkage layer 111, the housing 112, and the stretching layer 113 can be separate structural components. The shrinkage layer 111 is coated on the side of the housing 112 closest to the liquid crystal panel 10; the stretching layer 113 is coated on the side of the housing 112 opposite to the liquid crystal panel 10.

[0086] The clearance space 11a can be formed by the shrinkage layer 111, the housing 112, and the stretching layer 113 being recessed in the direction away from the liquid crystal panel 10. In other words, the clearance space 11a is formed by the recess formed by the shrinkage layer 111, the housing 112, and the stretching layer 113.

[0087] Optionally, after the stretching layer 113 absorbs a preset heat, the stretching layer 113 heats up to a third preset temperature and stretches, so that the shrinking layer 111, the housing 112, and the stretching layer 113 as a whole are recessed in a direction away from the liquid crystal panel 10, and the housing assembly 11 has the clearance space 11a. When the stretching layer 113 cools down to a fourth preset temperature, the stretching layer 113 returns to its original shape, so that the shrinking layer 111 abuts against the liquid crystal panel 10.

[0088] Further optionally, the first preset temperature is equal to the third preset temperature; the second preset temperature is equal to the fourth preset temperature.

[0089] Optionally, the backlight assembly 13 can provide heat, the shrink layer 111 can absorb the heat and shrink, and the stretch layer 113 can absorb the heat and stretch.

[0090] Optionally, one of the sub-shrinking layers 1111 is spaced apart from two adjacent sub-stretching layers 1131.

[0091] This embodiment, by providing a shrinkage layer 111 and a stretching layer 113, allows the shrinkage layer 111 and the stretching layer 113 to deform simultaneously, thereby causing the shrinkage layer 111, the shell 112, and the stretching layer 113 to be recessed as a whole, making it easier for the shell assembly 11 to form a clearance space 11a. Simultaneously, the shrinkage layer 111 and the stretching layer 113 cooperate to achieve synchronous shrinkage and stretching, which can reduce or even eliminate the stress generated by deformation in the shell assembly 11, thereby increasing the service life of the shell assembly 11.

[0092] In addition, the user can restore the shrinkage layer 111 and the stretching layer 113 to their original deformation. In other words, the user can adjust the housing assembly 11 as needed to make the clearance space 11a disappear.

[0093] Optionally, this embodiment replaces the conventional integral PC (or other material) injection-molded housing 112 with a housing assembly 11 formed of materials with opposite orientations on the upper and lower surfaces of the housing 112. During the operation of the display module 1, the housing assembly 11 absorbs heat. The upper part of the housing 112 uses a heat-shrinkable material, and the lower part uses a heat-expanding material, so that the housing assembly 11 produces a slight indentation when the display module 1 is running. This reduces or eliminates the pressure on the contact surface of the liquid crystal panel 10 on the housing assembly 11, thereby reducing or eliminating the light leakage phenomenon caused by pressure.

[0094] In other words, this embodiment improves upon the inherent limitation of the liquid crystal panel 10 being prone to pressure-induced light leakage. By composited with two opposing thermally reactive materials on the upper and lower surfaces of the housing 112, when the display module 1 is turned on and running, the heat inside the backlight assembly 13 causes the upper part of the housing assembly 11 to shrink and the lower part to expand, thus reshaping it. This causes the housing assembly 11 to be recessed away from the liquid crystal panel 10, which weakens or eliminates the local outward arching of the housing 112 caused by assembly and its own flatness. This reduces or eliminates the local pressure on the liquid crystal panel 10 caused by the unevenness and outward arching of the housing 112 or the backlight assembly 13, improves the adaptability of the housing assembly 11, and achieves the purpose of improving pressure-induced light leakage.

[0095] Alternatively, please refer to Figure 14 , Figure 14 This is a schematic diagram of the structure of a housing assembly provided in another embodiment of this application.

[0096] In one embodiment, the display module 1 satisfies the following relationship:

[0097]

[0098] Wherein, L is the length of the surface of the housing assembly 11 near the liquid crystal panel 10 after the shrinking layer 111 shrinks and / or the stretching layer 113 stretches under the first preset conditions; h is the maximum distance between the housing assembly 11 and the liquid crystal panel 10 after the shrinking layer 111 shrinks and / or the stretching layer 113 stretches; in other words, h is the maximum recess depth; b is the length of the portion of the clearance space 11a formed by the housing assembly 11 projected onto the liquid crystal panel 10.

[0099] It should be noted that the difference between L and b, i.e., Lb, is the maximum shrinkage or expansion length of the shrinkage layer 111 or the stretching layer 113 on the housing assembly 11. This difference can be obtained by calculating the corresponding coefficient of thermal expansion of the shrinkage layer 111 or the stretching layer 113 material based on the maximum operating temperature of the display module 1, and then using the corresponding formula.

[0100] The derivation process of the above formula will be explained in detail below. For example... Figure 14 As shown, the housing assembly 11 is recessed in the direction away from the liquid crystal panel 10, which can be understood as the housing assembly 11 bending to form an arc; wherein the arc forms a central angle α, the radius is R, the arc length is L, the chord length is b, and the chord height is h. According to geometric laws, the arc length is: String length: radius: Central angle: String height: Based on the above formula, the relationship between L, h, and b can be obtained.

[0101] This embodiment provides a formula relating the maximum recess depth formed in the housing assembly 11 to the tensile or expansion dimensions of the housing assembly 11, in order to determine which materials can be used to fabricate the housing assembly 11 to achieve the preset recess depth. In actual products, the internal gap design of the backlight assembly 13 and the supporting strength of the housing assembly 11 need to be considered, so the recess depth of the clearance space 11a cannot be too large. The specific recess depth can be determined according to the actual design.

[0102] Please refer to Figure 15 , Figure 15 This is a schematic diagram of the structure of a housing assembly provided in another embodiment of this application. In one embodiment, the housing assembly 11 further includes a stretching layer 113 disposed on the side of the housing 112 away from the shrinking layer 111; wherein the stretching layer 113 can be stretched under a second preset condition; when the shrinking layer 111 shrinks, the stretching layer 113 can also be stretched, so that the shrinking layer 111, the housing 112, and the stretching layer 113 are all recessed in a direction away from the liquid crystal panel 10.

[0103] The shrinkage layer 111 includes a plurality of sub-shrinkage layers 1111 spaced apart, and the stretching layer 113 includes a plurality of sub-stretching layers 1131 spaced apart, with each sub-shrinkage layer 1111 corresponding to the spaced arrangement of two adjacent sub-stretching layers 1131.

[0104] The shrinkage layer 111 provided in this embodiment includes a plurality of sub-shrinkage layers 1111, the number of which is 2-20. The stretching layer 113 provided in this embodiment includes a plurality of sub-stretching layers 1131, the number of which is 2-60. Optionally, when the number of sub-shrinkage layers 1111 is n, the number of sub-stretching layers 1131 is n+1 (e.g., ...). Figure 16 and Figure 17 (as shown) or 3n+1 (e.g.) Figure 18 (As shown). This embodiment does not limit the shape and size of the sub-shrinkage layer 1111 and the sub-stretching layer 1131. Optionally, the shapes of the sub-shrinkage layer 1111 and the sub-stretching layer 1131 include, but are not limited to, squares, rectangles, circles, triangles, rhombuses, trapezoids, etc.

[0105] In this embodiment, each sub-shrink layer 1111 is spaced apart from two adjacent sub-stretch layers 1131. In other words, the orthographic projection of a sub-shrink layer 1111 on the housing 112 is located between the orthographic projections of two adjacent sub-stretch layers 1131 on the housing 112; or, the sub-shrink layers 1111 and the sub-stretch layers 1131 are staggered; that is, two sub-stretch layers 1131 are located on opposite sides of a sub-shrink layer 1111.

[0106] This embodiment, by defining the positions of the sub-shrinkage layer 1111 and the sub-stretching layer 1131, makes it easier for the housing assembly 11 to be recessed in a direction away from the liquid crystal panel 10, reducing the operational difficulty of forming the clearance space 11a in the housing assembly 11. Furthermore, by forming the clearance space 11a by setting the sub-shrinkage layer 1111 and the sub-stretching layer 1131, the sub-shrinkage layer 1111 and the sub-stretching layer 1131 can be partially disposed on the housing 112 according to product requirements, improving the operability of setting the shrinkage layer 111 and the stretching layer 113.

[0107] Please refer to this as well. Figures 16-18 , Figure 16 This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer as orthographically projected onto the shell according to an embodiment of this application. Figure 17 This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer projected onto the shell in another embodiment of this application. Figure 18 This is a schematic diagram of the sub-shrinkage layer and sub-stretching layer projected onto the shell in another embodiment of this application.

[0108] In one embodiment, the housing 112 has a first direction and a second direction perpendicular to the first direction, and the display module 1 satisfies at least one of the following: the sub-shrinkage layer 1111 and the sub-stretching layer 1131 are disposed along the first direction; the sub-shrinkage layer 1111 and the sub-stretching layer 1131 are disposed along the second direction.

[0109] In this embodiment, the housing 112 has a first orientation (e.g., Figure 16 and Figure 18 (as shown in direction D3) and the second direction (as shown in the second direction) Figure 17 and Figure 18 (As shown in direction D4). When the first direction is the length direction of the housing 112, the second direction is the width direction of the housing 112; or when the first direction is the width direction of the housing 112, the second direction is the length direction of the housing 112.

[0110] For example, when the sub-shrinkage layer 1111 and the sub-stretch layer 1131 are arranged along the first direction, the two sub-stretch layers 1131 are respectively arranged on the left and right sides of a sub-shrinkage layer 1111. As another example, when the sub-shrinkage layer 1111 and the sub-stretch layer 1131 are arranged along the second direction, the two sub-stretch layers 1131 are respectively arranged on the front and rear sides of a sub-shrinkage layer 1111. As yet another example, when the sub-shrinkage layer 1111 and the sub-stretch layer 1131 are arranged along both the first and second directions, the two sub-stretch layers 1131 are respectively arranged on the left and right sides of a sub-shrinkage layer 1111, and there are also two sub-stretch layers 1131 respectively arranged on the front and rear sides of a sub-shrinkage layer 1111.

[0111] This embodiment, by defining the setting direction of the sub-shrinkage layer 1111 and the sub-stretching layer 1131, can set the recess formed by the housing assembly 11 along the first direction and / or the second direction according to product requirements, thereby improving the operability of setting the shrinkage layer 111 and the stretching layer 113.

[0112] Please refer to this as well. Figure 7 and Figure 19 , Figure 19 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. In one embodiment, the shrinkage layer 111 is flexible, and the side surface of the shrinkage layer 111 near the liquid crystal panel 10 is used to abut against the liquid crystal panel 10.

[0113] The shrinkage layer 111 provided in this embodiment is flexible and has a cushioning effect. Optionally, the flexible shrinkage layer 111 includes rubber materials, foam materials, etc. The flexible shrinkage layer 111 includes at least one of silicone rubber, butadiene rubber, PU, ​​and EVA. The shrinkage layer 111 is disposed between the housing 112 and the liquid crystal panel 10, and the shrinkage layer 111 abuts against at least a portion of the liquid crystal panel 10 to prevent the housing 112 from directly contacting the liquid crystal panel 10, thereby playing a cushioning role, protecting the liquid crystal panel 10, reducing the probability of the liquid crystal panel 10 being damaged by the housing 112, and increasing the service life of the display module 1.

[0114] Compared to related technologies where a soft rubber or foam material is pasted between the LCD panel 10 and the housing 112 as a buffer layer to prevent damage to the LCD panel 10, this embodiment uses the shrink layer 111 as a buffer layer. While the shrink layer 111 can shrink to form a recess, it can also serve as a buffer layer to protect the LCD panel 10. This reduces the use of soft rubber or foam material, thus reducing the assembly steps of pasting soft rubber or foam material onto the housing 112 and simplifying the assembly process.

[0115] Furthermore, when the shrink layer 111 and the housing 112 are integrally formed, compared to the related art's method of bonding soft rubber or foam materials, this embodiment can eliminate defects caused by misalignment of the soft material. For example, inward offset: the soft material enters the backlight interior, resulting in shadows at the module edges. Or, outward offset: the soft material easily extends beyond the edge, leaking outside the module edge, causing the overall dimensions to exceed specifications. Moreover, this embodiment can also improve the reliability of the display module 1, eliminating the risk of the soft material detaching due to adhesive tape failure caused by extreme environments (e.g., high temperature, high humidity environments).

[0116] Optionally, compared to the display module 1 solution in related technologies, this embodiment sets two opposing thermally reactive materials on the upper and lower surfaces of the housing 112, which can also serve as a soft buffer layer for the liquid crystal panel 10, eliminating the need for additional soft rubber or foam. Furthermore, the soft buffer layer is integrated with the housing 112, reducing the assembly process of attaching soft materials in related technologies, avoiding assembly defects, and the glue-free design also improves module reliability.

[0117] Therefore, this embodiment can be applied to the design of LCD module products, mainly to improve the pressure light leakage that is common in display module 1. Unlike the conventional display module 1 mechanism design, this embodiment replaces the overall PC (or other material) injection molded shell 112 of the related technology with a shell assembly 11 made of different materials on the upper and lower parts. During the operation of the display module 1, heat is absorbed. The upper part of the shell 112 uses a heat-shrinkable material, and the lower part of the shell 112 uses a heat-expanding material, so that the shell assembly 11 produces a slight indentation when the display module 1 is running, reducing or eliminating the pressure force on the contact surface of the LCD panel 10 on the shell assembly 11, thereby reducing or eliminating the pressure light leakage phenomenon. At the same time, there is no need to attach soft rubber or foam. The soft buffer layer is integrated with the shell assembly 11, reducing the assembly process of attaching soft materials in the conventional solution, avoiding poor assembly, improving assembly efficiency, and the glue-free design can also improve the reliability of the module under extreme environments (high temperature and high humidity, cold and heat cycle shock, etc.).

[0118] Please refer to Figure 20 , Figure 20 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. In one embodiment, the display module 1 further includes a buffer 15, which is disposed between the liquid crystal panel 10 and the housing assembly 11.

[0119] The display module 1 provided in this embodiment also includes a buffer 15 for cushioning and protecting the liquid crystal panel 10. The material of the buffer 15 includes, but is not limited to, foam, rubber, and plastic. The buffer 15 is flexible. The buffer 15 covers the side of the housing assembly 11 near the liquid crystal panel 10; or, the buffer 15 is partially disposed on the side of the housing assembly 11 near the liquid crystal panel 10.

[0120] This embodiment, by providing a buffer 15, not only reduces the probability of the housing assembly 11 damaging the liquid crystal panel 10; but also, because the housing assembly 11 has a clearance space 11a on the side close to the liquid crystal panel 10, there is a gap between a part of the housing assembly 11 and the buffer 15. That is, a part of the housing assembly 11 cannot directly contact the buffer 15, so the housing assembly 11 cannot indirectly transmit the contact stress to the liquid crystal panel 10 through the buffer 15, thereby reducing or eliminating the pressure force of the housing assembly 11 on the liquid crystal panel 10 on the contact surface, reducing or eliminating the pressure light leakage phenomenon, and thus improving the display performance of the display module 1.

[0121] Please refer to Figure 21 , Figure 21 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. In one embodiment, the buffer 15 includes a plurality of sub-buffers 151 spaced apart, and the orthographic projection of the sub-buffers 151 on the housing assembly 11 is located outside the clearance space 11a.

[0122] The buffer 15 provided in this embodiment includes a plurality of sub-buffers 151, the number of which is 2-40. The orthographic projection of the sub-buffers 151 on the housing assembly 11 is located outside the clearance space 11a, in other words, there is a gap between the sub-buffers 151 and the clearance space 11a. Or, the sub-buffers 151 are disposed at the periphery of the clearance space 11a.

[0123] This embodiment, by defining the position of the sub-buffer layer, enables the buffer layer to both protect the liquid crystal panel 10 and increase the distance between the housing assembly 11 and the liquid crystal panel 10 in the clearance space 11a. This further reduces the probability of direct contact between the housing assembly 11 and the liquid crystal panel 10, thereby further reducing or eliminating the pressure exerted by the housing assembly 11 on the liquid crystal panel 10 on the contact surface, further reducing or eliminating the light leakage phenomenon caused by pressure, and further improving the display performance of the display module 1.

[0124] Please refer to Figure 22 , Figure 22 This is a schematic diagram of the structure of a display module provided in another embodiment of this application. In one embodiment, the side surface of the housing assembly 11 near the liquid crystal panel 10 includes a supporting surface 11b and a recessed surface 11c. The supporting surface 11b is bent and connected to the periphery of the recessed surface 11c. The supporting surface 11b is used to support the liquid crystal panel 10, and the recessed surface 11c surrounds and forms the clearance space 11a.

[0125] The housing assembly 11 provided in this embodiment has a supporting surface 11b and a recessed surface 11c. The supporting surface 11b is used to abut against the liquid crystal panel 10 to support the liquid crystal panel 10; the recessed surface 11c is used to form a clearance space 11a. The supporting surface 11b is located at the periphery of the recessed surface 11c, and the supporting surface 11b and the recessed surface 11c cooperate with each other, so that the recessed surface 11c can reduce or eliminate the pressure force on the liquid crystal panel 10 on the contact surface of the housing assembly 11, thereby reducing or eliminating the pressure light leakage phenomenon; and the supporting surface 11b can abut against a portion of the liquid crystal panel 10, thereby improving the support capacity of the housing assembly 11 and improving the stability of the display module 1.

[0126] This application also provides an electronic device, which includes a housing, a processor, and a display module 1 as described above. The processor is disposed within the housing, the display module 1 is mounted on the housing, and the processor is electrically connected to the display module 1.

[0127] This embodiment does not limit the types of electronic devices. The electronic devices provided in this embodiment include, but are not limited to, mobile terminals such as mobile phones, tablets, laptops, PDAs, personal computers (PCs), personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0128] The electronic device provided in this embodiment, by adopting the display module 1 provided above in this application, provides a clearance space 11a on the side of the housing assembly 11 close to the liquid crystal panel 10; in other words, there is a gap between a portion of the housing assembly 11 and the liquid crystal panel 10; or, in other words, a portion of the housing assembly 11 cannot directly contact the liquid crystal panel 10, so as to reduce or eliminate the pressure force of the housing assembly 11 on the liquid crystal panel 10 on the contact surface, thereby reducing or eliminating the light leakage phenomenon caused by pressure, and thus improving the display performance of the electronic device.

[0129] The above provides a detailed description of the embodiments provided in this application. This document elucidates and explains the principles and implementation methods of this application. The above description is only intended to help understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A display module, characterized in that, The display module includes a liquid crystal panel, a housing assembly, and a backlight assembly. The housing assembly is mounted on one side of the liquid crystal panel, and the side of the housing assembly closest to the liquid crystal panel has clearance space. The housing assembly includes a shrink layer, a housing, and a stretch layer. The shrink layer is closer to the liquid crystal panel than the housing, and the stretch layer is farther away from the liquid crystal panel than the housing. The housing is a middle frame. When the shrink layer absorbs a preset amount of heat, the shrink layer heats up and shrinks, so that the surface of the shrink layer close to the liquid crystal panel is recessed in the direction away from the liquid crystal panel. When the stretch layer absorbs a preset amount of heat, the stretch layer heats up and stretches, so that the housing and the stretch layer are recessed in the direction away from the liquid crystal panel to form the clearance space. The backlight assembly and the housing assembly are located on the same side of the liquid crystal panel. The backlight assembly is mounted on the housing and provides heat absorbed by the shrink layer and the stretch layer.

2. The display module as described in claim 1, characterized in that, When the shrinkage layer shrinks, the shrinkage layer and the housing as a whole are recessed in a direction away from the liquid crystal panel, thereby giving the housing assembly the clearance space.

3. The display module as described in claim 1, characterized in that, The shrinkage layer includes a plurality of sub-shrinkage layers spaced apart, and the stretching layer includes a plurality of sub-stretching layers spaced apart, with each sub-shrinkage layer corresponding to the spaced interval between two adjacent sub-stretching layers.

4. The display module as described in claim 3, characterized in that, The housing has a first direction and a second direction perpendicular to the first direction, and the display module satisfies at least one of the following conditions; The sub-shrinkage layer and the sub-stretching layer are disposed along the first direction; The sub-shrinkage layer and the sub-stretching layer are disposed along the second direction.

5. The display module as described in claim 1, characterized in that, The shrinkage layer is flexible, and the side surface of the shrinkage layer near the liquid crystal panel is used to abut against the liquid crystal panel.

6. The display module as described in claim 1, characterized in that, The display module also includes a buffer component, which is disposed between the liquid crystal panel and the housing assembly.

7. The display module as described in claim 6, characterized in that, The buffer includes a plurality of sub-buffers spaced apart, and the orthographic projection of the sub-buffers on the housing assembly is located outside the clearance space.

8. The display module as described in claim 1, characterized in that, The housing assembly has a supporting surface and a recessed surface on the side surface near the liquid crystal panel. The supporting surface is bent and connected to the periphery of the recessed surface. The supporting surface is used to support the liquid crystal panel, and the recessed surface surrounds and forms the clearance space.

9. An electronic device, characterized in that, The electronic device includes a housing, a processor, and a display module as described in any one of claims 1-8, wherein the processor is disposed within the housing, the display module is disposed within the housing, and the processor is electrically connected to the display module.

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