Display module

Abstract

The present application provides a display module, comprising a shell, a cover plate, a first pressure sensing element and a first control unit; wherein, the shell has a receiving groove; the cover plate is covered in the notch of the receiving groove to cooperate with the shell to form a receiving cavity; the first pressure sensing element is arranged on the surface of the cover plate facing the bottom wall of the receiving groove; the first control unit is arranged in the receiving cavity and is electrically connected to the first pressure sensing element; wherein, in response to the first pressure sensing element detecting that the compressive stress and / or tensile stress on the cover plate is greater than or equal to a first preset threshold, the first control unit issues relevant instructions to avoid damage to the cover plate.

Description

Technical Field

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

[0002] As the outer structure of the display module, the cover plate needs to have a certain strength to meet daily needs.

[0003] However, when the display module is used in specific scenarios, such as underwater applications and plateau applications, due to the large pressure difference between the inside of the module and the outside world, it is easy to cause bubbles or even cracks in the cover, affecting the user experience. Summary of the Invention

[0004] The present application provides a display module, which can issue relevant instructions when the tensile stress and / or compressive stress applied to the cover plate exceeds a preset threshold value to avoid damage to the cover plate.

[0005] In order to solve the above technical problems, a technical solution provided in the present application is: providing a display module, comprising: a shell, having a receiving groove; a cover plate, covering the notch of the receiving groove to cooperate with the shell to form a receiving cavity; a first pressure sensing element, arranged on the surface of the cover plate facing the bottom wall of the receiving groove; a first control unit, arranged in the receiving cavity and electrically connected to the first pressure sensing element; the first control unit issues relevant instructions in response to the first pressure sensing element detecting that the compressive stress and / or tensile stress on the cover plate is greater than or equal to a first preset threshold.

[0006] In some embodiments, the display module also includes: a pneumatic unit, electrically connected to the first control unit; wherein, in response to the first pressure sensing element detecting that the compressive stress on the cover plate is greater than or equal to a first preset threshold, the first control unit controls the operation of the pneumatic unit to balance the pressure difference between the receiving cavity and the outside world.

[0007] In some embodiments, the pneumatic unit includes: a gas storage device, disposed in the receiving cavity, and used to store gas; the first control unit controls the gas storage device to open in response to the first pressure sensing element detecting that the compressive stress on the cover plate is greater than or equal to a first preset threshold value to inflate the receiving cavity to balance the pressure difference between the receiving cavity and the outside world.

[0008] In some embodiments, the pneumatic unit further includes: an air pump, which is disposed in the receiving chamber, electrically connected to the first control unit, and connected to the gas storage device. The first control unit controls the air pump to open in response to the first pressure sensing element detecting that the tensile stress on the cover plate is greater than or equal to a first preset threshold, and draws the gas in the receiving chamber into the gas storage device to balance the pressure difference between the receiving chamber and the outside world.

[0009] In some embodiments, the pneumatic unit includes a first one-way valve disposed on the housing, and the first one-way valve is configured so that in a conducting state, an external inflation device can inflate the gas storage device through the first one-way valve.

[0010] In some embodiments, the display module further includes a second one-way valve disposed on the shell, and the second one-way valve is configured so that when in a conducting state, the receiving cavity can exhaust gas to the outside through the second one-way valve to balance the pressure difference between the receiving cavity and the outside.

[0011] In some embodiments, the display module also includes a third one-way valve, which is arranged on the shell. The third one-way valve is configured so that when it is in a conducting state, external air can pass through the third one-way valve to inflate the receiving cavity to balance the pressure difference between the receiving cavity and the outside world.

[0012] In some embodiments, the display module further includes: an alarm unit connected to the first control unit, and the first control unit issues relevant instructions to control the alarm unit to issue an alarm in response to the compressive stress and / or tensile stress detected by the first pressure sensing element being greater than or equal to a first preset threshold.

[0013] In some embodiments, the alarm unit includes a buzzer element, a light signal alarm element and / or a vibration element.

[0014] In some embodiments, the first control unit includes: a battery cell, which is connected to the pneumatic unit; a control circuit board, which is connected to the battery cell, the first pressure sensing element, and the pneumatic unit; the battery cell supplies power to the first pressure sensing element through the control circuit board, and the control circuit board also receives the compressive stress and / or tensile stress detected by the first pressure sensing element, and issues relevant instructions in response to the compressive stress or tensile stress detected by the first pressure sensing element being greater than or equal to a first preset threshold.

[0015] Different from the prior art, the display module provided in the present application includes a first pressure sensing element and a first control unit, wherein the first pressure sensing element is arranged on the surface of the cover plate facing the bottom wall of the receiving groove, and is used to detect the compressive stress and / or tensile stress applied to the cover plate; the first control unit is arranged in the receiving cavity and is electrically connected to the first pressure sensing element; the first control unit responds to the first pressure sensing element detecting that the compressive stress and / or tensile stress applied to the cover plate is greater than or equal to a first preset threshold, and issues relevant instructions, for example, issuing an alarm instruction to remind the user, or issuing an instruction to the relevant device to balance the internal and external pressure difference, etc., so as to avoid damage to the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0017] Figure 1 A schematic structural diagram of a first embodiment of a display module provided in this application;

[0018] Figure 2 A schematic structural diagram of a second embodiment of the display module provided in this application;

[0019] Figure 3 A schematic structural diagram of a third embodiment of the display module provided in this application;

[0020] Figure 4 A schematic structural diagram of a fourth embodiment of the display module provided by this application;

[0021] Figure 5 A schematic structural diagram of a fifth embodiment of the display module provided in this application;

[0022] Figure 6 A schematic structural diagram of a sixth embodiment of the display module provided in this application;

[0023] Figure 7 This is a structural schematic diagram of the seventh embodiment of the display module provided by this application. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0025] The terms "first," "second," and "third" in this application are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of such features. In the description of this application, "multiple" means at least two, for example, two, three, etc., unless otherwise specifically defined. All directional indications in the embodiments of this application (such as up, down, left, right, front, back...) are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications also change accordingly. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products, or devices.

[0026] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0028] See also Figure 1 and Figure 2 , Figure 1 A schematic structural diagram of a first embodiment of a display module provided in this application; Figure 2 This is a structural schematic diagram of the second embodiment of the display module provided by this application.

[0029] The present application provides a display module 100, comprising a housing 10, a cover plate 20, a first pressure sensing element 30, and a first control unit 40. Specifically, the housing 10 has a receiving slot; the cover plate 20 covers the notch of the receiving slot to form a receiving cavity A with the housing 10. The first pressure sensing element 30 and the first control unit 40 are disposed within the receiving cavity A, with the first pressure sensing element 30 disposed on the surface of the cover plate 20 facing the bottom wall of the receiving slot, for detecting compressive stress and tensile stress on the cover plate 20. The first control unit 40 is electrically connected to the first pressure sensing element 30. In response to the first pressure sensing element 30 detecting that the compressive stress and / or tensile stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 issues a relevant instruction to prevent damage to the cover plate 20.

[0030] Among them, in this application, the compressive stress exerted on the cover plate 20 refers to the force exerted on the cover plate 20 when the external atmospheric pressure or the external water pressure is greater than the pressure inside the receiving chamber A; the tensile stress exerted on the cover plate 20 refers to the force exerted on the cover plate 20 when the external atmospheric pressure or the external water pressure is less than the pressure inside the receiving chamber A.

[0031] The first preset threshold value can be obtained and preset in advance through experiments. When the cover plate 20 is subjected to compressive stress, the first preset threshold value can be a positive value, and when the cover plate 20 is subjected to tensile stress, the first preset threshold value can be a negative value.

[0032] It can be understood that when the compressive stress on the cover 20 is too large, that is, the force exerted on the cover 20 by the external atmospheric pressure or the external water pressure is greater; when the tensile stress on the cover 20 is too large, that is, the force exerted on the cover 20 by the internal pressure of the receiving chamber A is greater, it is easy to cause deformation, bubbles, or even rupture of the cover 20, affecting user use and causing maintenance costs.

[0033] The present application provides a first pressure sensing element 30 on the inner surface of the cover plate 20, and a first control unit 40 electrically connected to the first pressure sensing element 30 is provided in the receiving cavity A. When the first pressure sensing element 30 detects that the compressive stress and / or tensile stress applied to the cover plate 20 is greater than or equal to a first preset threshold value, the first control unit 40 issues relevant instructions to avoid damage to the cover plate 20.

[0034] For example, when the user is in a diving state, an alarm command is issued to remind the user. After receiving the alarm command, the user floats up or stops diving to avoid the water pressure being greater than the pressure in the receiving chamber A, and when it is greater than the preset value, the cover 20 is subjected to excessive compressive stress and damaged.

[0035] For another example, when the user is in a climbing state, an alarm command is issued to remind the user. After receiving the alarm command, the user goes down the mountain or stops climbing to avoid the pressure in the receiving chamber A being greater than the external atmospheric pressure and greater than the preset value, which causes the cover plate 20 to be subjected to excessive tensile stress and be damaged.

[0036] In some embodiments, to achieve the above-mentioned alarm purpose, as Figure 1 As shown, the display module 100 also includes an alarm unit 50, which is connected to the first control unit 40. In response to the compressive stress and / or tensile stress detected by the first pressure sensing element 30 being greater than or equal to a first preset threshold, the first control unit 40 issues relevant instructions to control the alarm unit 50 to issue an alarm.

[0037] In some embodiments, the alarm unit 50 includes but is not limited to a buzzer element, a light signal alarm element and / or a vibration element, and may include multiple alarm elements mentioned above at the same time.

[0038] When the alarm unit 50 includes a buzzer element, the first control unit 40 controls the buzzer element to emit a specific sound to alert the user in response to the compressive stress and / or tensile stress detected by the first pressure sensing element 30 being greater than or equal to a first preset threshold.

[0039] When the alarm unit 50 includes a light signal element, the first control unit 40 controls the light signal element to emit light of a specific color to alert the user in response to the compressive stress and / or tensile stress detected by the first pressure sensing element 30 being greater than or equal to a first preset threshold.

[0040] When the alarm unit 50 includes a vibration element, the first control unit 40 controls the vibration element to vibrate at a specific vibration frequency in response to the compressive stress and / or tensile stress detected by the first pressure sensing element 30 being greater than or equal to a first preset threshold, so as to alert the user.

[0041] In some embodiments, when the first pressure sensing element 30 detects that the compressive stress and / or tensile stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 can also send instructions to related components to balance the internal and external pressure differences, etc., to avoid causing damage to the cover plate 20.

[0042] like Figures 2 to 6 As shown, Figure 2 A schematic structural diagram of a second embodiment of the display module provided in this application; Figure 3 A schematic structural diagram of a third embodiment of the display module provided in this application; Figure 4 A schematic structural diagram of a fourth embodiment of the display module provided by this application; Figure 5 A schematic structural diagram of a fifth embodiment of the display module provided in this application; Figure 6This is a structural schematic diagram of the sixth embodiment of the display module provided by this application.

[0043] In some embodiments, the display module 100 also includes a pneumatic unit 60, which is electrically connected to the first control unit 40; wherein, in response to the first pressure sensing element 30 detecting that the compressive stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 controls the pneumatic unit 60 to operate to balance the pressure difference between the receiving chamber A and the outside world.

[0044] The pneumatic unit 60 can be arranged inside or outside the receiving chamber A, and the position is not limited, as long as it can be connected to the receiving chamber A under user configuration.

[0045] Among them, the function of the pneumatic unit 60 is: when the compressive stress applied to the cover plate 20 is greater than or equal to a first preset threshold, air is inflated into the receiving chamber A to balance the pressure difference between the receiving chamber A and the outside world; when the tensile stress applied to the cover plate 20 is greater than or equal to the first preset threshold, the air is exhausted from the receiving chamber A to balance the pressure difference between the receiving chamber A and the outside world.

[0046] In some embodiments, as Figure 2 As shown, the pneumatic unit 60 includes a gas storage device 61, which is arranged in the receiving chamber A, and the gas storage device 61 is used to store gas; the first control unit 40 controls the gas storage device 61 to open in response to the first pressure sensing element 30 detecting that the compressive stress on the cover 20 is greater than or equal to the first preset threshold value to inflate the receiving chamber A to balance the pressure difference between the receiving chamber A and the outside world.

[0047] The gas storage device 61 may be a device with a certain storage space, such as an air bag or a gas tank, which can store a certain amount of gas, preferably a certain amount of high-pressure gas.

[0048] Among them, such as Figure 2 The gas storage device 61 shown is disposed on the bottom wall of the housing 10 ; of course, in other embodiments, the gas storage device 61 may also be disposed on the side wall of the housing 10 , which is not limited here.

[0049] In some embodiments, the gas storage device 61 has a control switch valve (not shown), and the first control unit 40 is connected to the control switch valve of the gas storage device 61. The first control unit 40 responds to the first pressure sensing element 30 detecting that the compressive stress on the cover plate 20 is greater than or equal to the first preset threshold value, and controls the control switch valve of the gas storage device 61 to open to inflate the accommodating cavity A; after a certain period of inflation, the first control unit 40 responds to the first pressure sensing element 30 detecting that the compressive stress on the cover plate 20 is less than the first preset threshold value, and controls the control switch valve of the gas storage device 61 to close.

[0050] In some embodiments, as Figure 3 As shown, the pneumatic unit 60 further includes an air pump 62, which is disposed within the receiving chamber A and electrically connected to the first control unit 40 and to the gas storage device 61. Specifically, in response to the first pressure sensing element 30 detecting that the tensile stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 controls the air pump 62 to open, thereby pumping the gas within the receiving chamber A into the gas storage device 61 to balance the pressure difference between the receiving chamber A and the outside world.

[0051] For example, in a user diving scenario, as the diving depth increases, the water pressure gradually increases. The first control unit 40 responds to the first pressure sensing element 30 detecting that the compressive stress on the cover plate 20 is greater than or equal to the first preset threshold, and controls the control switch valve of the air storage device 61 to open to inflate the accommodating chamber A to balance the pressure difference between the inside and the outside. When the user gradually floats up, the water pressure gradually decreases. However, due to the excessive pressure in the accommodating chamber A caused by the inflation, the first control unit 40 responds to the first pressure sensing element 30 detecting that the tensile stress on the cover plate 20 is greater than or equal to the first preset threshold, and controls the air pump 62 to open to draw excess gas in the accommodating chamber A into the air storage device 61 to balance the pressure difference between the accommodating chamber A and the outside world.

[0052] In some embodiments, in order to make the gas storage device 61 reusable and to ensure that the gas storage device 61 has a sufficient amount of gas, as shown in FIG. Figure 4 As shown, the pneumatic unit 60 further includes a first one-way valve 63 , which is disposed on the housing 10 . The first one-way valve 63 is configured such that, in a conducting state, an external inflatable device can inflate the air storage device 61 through the first one-way valve 63 .

[0053] Specifically, one end of the first one-way valve 63 is connected to the outside world, and the other end is connected to the gas storage device 61. The first one-way valve 63 is a one-way valve that only allows outside air to enter the gas storage device 61, and the gas in the gas storage device 61 cannot be discharged to the outside world through the first one-way valve 63. The first one-way valve 63 can be provided with a valve plug. When the gas storage device 61 needs to be inflated, the user opens the valve plug, and the gas storage device 61 is inflated through the external inflation device and the first one-way valve 63.

[0054] In some embodiments, as Figure 5 As shown, the display module 100 also includes a second one-way valve 64, which is arranged on the shell 10. The second one-way valve 64 is configured so that when in the conductive state, the accommodating chamber A can exhaust to the outside through the second one-way valve 64 to balance the pressure difference between the accommodating chamber A and the outside.

[0055] Specifically, one end of the second one-way valve 64 is connected to the outside world, and the other end is connected to the receiving chamber A. The second one-way valve 64 is a one-way valve that can only allow the gas in the receiving chamber A to be discharged to the outside world, and the outside air cannot enter the receiving chamber A through the second one-way valve 64. The second one-way valve 64 can be provided with a valve plug. When it is necessary to vent the receiving chamber A, the user opens the valve plug, and the receiving chamber A is vented due to the pressure difference between the inside and outside.

[0056] For example, in a user diving scenario, as the diving depth increases, the water pressure gradually increases. The first control unit 40 responds to the first pressure sensing element 30 detecting that the compressive stress on the cover 20 is greater than or equal to the first preset threshold, and controls the control switch valve of the air storage device 61 to open to inflate the accommodating chamber A to balance the pressure difference between the inside and the outside. When the user gradually floats up, the water pressure gradually decreases. However, due to the excessive pressure caused by the inflation in the accommodating chamber A, the user can manually open the valve plug of the second one-way valve 64. Due to the pressure difference between the inside and the outside, the gas in the accommodating chamber A is exhausted into the water through the second one-way valve 64 to balance the pressure difference between the accommodating chamber A and the outside world.

[0057] For another example, when the user climbs to a high altitude, as the altitude increases, the external atmospheric pressure decreases. The first control unit 40 detects that the tensile stress on the cover 20 is greater than or equal to the first preset threshold in response to the first pressure sensing element 30, and controls the alarm unit 50 to sound an alarm. The user can manually open the valve plug of the second one-way valve 64. Due to the pressure difference between the inside and the outside, the gas in the accommodating chamber A is exhausted to the outside through the second one-way valve 64 to balance the pressure difference between the accommodating chamber A and the outside world.

[0058] Among them, such as Figure 5 The second one-way valve 64 is shown to be disposed on the side wall of the housing 10 ; of course, in other embodiments, the second one-way valve 64 may also be disposed on the bottom wall of the housing 10 , which is not limited here.

[0059] In some embodiments, as Figure 6 As shown, the display module 100 also includes a third one-way valve 65, which is arranged on the shell 10. The third one-way valve 65 is configured so that when it is in the on state, external air can be inflated into the receiving chamber A through the third one-way valve 65 to balance the pressure difference between the receiving chamber A and the outside world.

[0060] Specifically, one end of the third one-way valve 65 is connected to the outside world, and the other end is connected to the receiving chamber A. The third one-way valve 65 is a one-way valve that only allows outside air to enter the receiving chamber A, and the gas in the receiving chamber A cannot be discharged to the outside world through the third one-way valve 65. A valve plug can be provided on the third one-way valve 65. When it is necessary to inflate the receiving chamber A, the user opens the valve plug, and an external inflation device inflates the receiving chamber A through the third one-way valve 65. Alternatively, due to the pressure difference between the inside and outside, the outside air can inflate the receiving chamber A through the third one-way valve 65.

[0061] For example, when a user ascends a mountain, as the altitude gradually increases, the external atmospheric pressure gradually decreases. In response to the first pressure sensing element 30 detecting that the tensile stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 controls the alarm unit 50 to sound an alarm. The user can then manually open the valve plug of the second one-way valve 64. Due to the internal and external pressure differential, the gas in the receiving chamber A is exhausted through the second one-way valve 64 to balance the pressure difference between the receiving chamber A and the outside. When the user descends a mountain, as the altitude gradually decreases, the external atmospheric pressure gradually decreases. Due to the exhaust, the pressure in the receiving chamber A becomes too low. In response to the first pressure sensing element 30 detecting that the compressive stress on the cover plate 20 is greater than or equal to the first preset threshold, the first control unit 40 controls the alarm unit 50 to sound an alarm. The user can then manually open the valve plug of the third one-way valve 65. Due to the internal and external pressure differential, external air is introduced into the receiving chamber A through the third one-way valve 65 to balance the pressure difference between the receiving chamber A and the outside.

[0062] Among them, Figure 6 The third one-way valve 65 shown is disposed on the side wall of the housing 10 ; of course, in other embodiments, the third one-way valve 65 can also be disposed on the bottom wall of the housing 10 , which is not limited here.

[0063] In some embodiments, the display module 100 may include both the alarm unit 50 and the pneumatic unit 60 .

[0064] See also Figure 7 , Figure 7 This is a structural diagram of the seventh embodiment of the display module provided by the present application. Specifically, in some embodiments, the first control unit 40 includes a battery cell 41 and a control circuit board 42. The battery cell 41 is used to store electrical energy; the control circuit board 42 connects the battery cell 41, the first pressure sensing element 30, the alarm unit 50, and the pneumatic unit 60, etc., such as the air pump 62 in the pneumatic unit 60, the control switch valve of the air storage device 61, etc.; specifically, the battery cell 41 supplies power to the first pressure sensing element 30 through the control circuit board 42, and the control circuit board 42 also receives the compressive stress and / or tensile stress detected by the first pressure sensing element 30, and in response to the compressive stress or tensile stress detected by the first pressure sensing element 30 being greater than or equal to the first preset threshold, issues relevant instructions to control the alarm unit 50 and / or the pneumatic unit 60 to operate.

[0065] Among them, Figure 7The control circuit board 42 shown includes a rigid circuit board PCB and a flexible circuit board FPC, wherein the rigid circuit board PCB is in contact with and connected to the battery cell 41, and is used to convert the electrical parameters (voltage, current, etc.) provided by the battery cell into the rated electrical parameters of each component, and the flexible circuit board FPC is connected to the rigid circuit board PCB and the first pressure sensing element 30, the alarm unit 50, the pneumatic unit 60, etc., and provides the rated electrical parameters to the above-mentioned components.

[0066] In some embodiments, the display module 100 further includes an array substrate 71, a color filter substrate 72, and a second control unit 73. The color filter substrate 72 is disposed on the surface of the cover plate 20 facing the bottom wall of the receiving cavity A; the array substrate 71 is disposed on the side of the color filter substrate 72 facing away from the cover plate 20; and the second control unit 73 is electrically connected to the array substrate 71 and the battery cell 41. In some embodiments, as Figure 7 As shown in FIG, the array substrate 71 is electrically connected to the second control unit 73 via a chip-on-film (COF).

[0067] In some embodiments, the display module 100 further includes a touch layer 74 disposed between the color filter substrate 72 and the array substrate 71 and electrically connected to the second control unit 73 to implement the touch function of the display module 100. Figure 7 As shown in FIG, the touch layer 74 is electrically connected to the second control unit 73 through the flexible touch circuit board Touch-FPC and the array substrate 71.

[0068] In some embodiments, the display module 100 further includes a support layer 75, which is disposed between the array substrate 71 and the second control unit 73 to insulate the array substrate 71 from the second control unit 73 and to support the array substrate 71. In some embodiments, the support layer 75 includes a stacked foam layer and a rigid support film.

[0069] Different from the prior art, the display module 100 provided in the present application comprises a first pressure sensing element 30 disposed on the inner surface of the cover plate 20, and a first control unit 40 disposed within the receiving chamber A and electrically connected to the first pressure sensing element 30. In response to the first pressure sensing element 30 detecting that the compressive stress and / or tensile stress on the cover plate 20 is greater than or equal to a first preset threshold, the first control unit 40 issues relevant instructions to prevent damage to the cover plate 20. Furthermore, the display module 100 may also include an alarm unit 50 and / or a pneumatic unit 60. The alarm unit 50 is configured to issue an alarm to alert a user when the first control unit 40 detects that the compressive stress and / or tensile stress is greater than or equal to the first preset threshold; and the pneumatic unit 60 is configured to inflate or exhaust the receiving chamber A according to the internal and external pressure differential when the first control unit 40 detects that the compressive stress and / or tensile stress is greater than or equal to the first preset threshold, thereby balancing the internal and external pressure differential and thereby preventing damage to the cover plate 20.

[0070] The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display module, characterized in that: include: A housing having a receiving slot; a cover plate, covering the notch of the receiving groove to cooperate with the shell to form a receiving cavity; A first pressure sensing element is provided on a surface of the cover plate facing the bottom wall of the receiving groove; a first control unit disposed in the receiving cavity and electrically connected to the first pressure sensing element; The first control unit issues a relevant instruction in response to the first pressure sensing element detecting that the compressive stress and / or tensile stress on the cover plate is greater than or equal to a first preset threshold; Wherein, the display module further includes: a pneumatic unit electrically connected to the first control unit; wherein, in response to the first pressure sensing element detecting that the compressive stress on the cover plate is greater than or equal to a first preset threshold, the first control unit controls the pneumatic unit to operate so as to balance the pressure difference between the receiving chamber and the outside world; Wherein, the pneumatic unit includes: A gas storage device is arranged in the receiving cavity, and is used to store gas; the first control unit controls the gas storage device to open in response to the first pressure sensing element detecting that the compressive stress on the cover plate is greater than or equal to a first preset threshold value to inflate the receiving cavity to balance the pressure difference between the receiving cavity and the outside world.

2. The display module according to claim 1, wherein: The pneumatic unit further comprises: An air pump is disposed in the receiving chamber, electrically connected to the first control unit, and connected to the gas storage device. The first control unit controls the air pump to open in response to the first pressure sensing element detecting that the tensile stress on the cover plate is greater than or equal to a first preset threshold, so as to draw the gas in the receiving chamber into the gas storage device to balance the pressure difference between the receiving chamber and the outside world.

3. The display module according to claim 1 or 2, characterized in that: The pneumatic unit includes a first one-way valve disposed on the housing. The first one-way valve is configured so that, in a conducting state, an external inflatable device can inflate the gas storage device through the first one-way valve.

4. The display module according to claim 1, wherein: The display module further includes a second one-way valve disposed on the housing. The second one-way valve is configured so that when in a conducting state, the accommodating cavity can exhaust gas to the outside through the second one-way valve to balance the pressure difference between the accommodating cavity and the outside.

5. The display module according to claim 1 or 4, characterized in that: The display module also includes a third one-way valve, which is arranged on the shell. The third one-way valve is configured so that when it is in a conducting state, external air can pass through the third one-way valve to inflate the receiving cavity to balance the pressure difference between the receiving cavity and the outside world.

6. The display module according to claim 1, wherein: The display module further includes: The alarm unit is connected to the first control unit. In response to the compressive stress and / or tensile stress detected by the first pressure sensing element being greater than or equal to a first preset threshold, the first control unit issues relevant instructions to control the alarm unit to issue an alarm.

7. The display module according to claim 6, wherein: The alarm unit includes a buzzer element, a light signal alarm element and / or a vibration element.

8. The display module according to claim 1, wherein: The first control unit includes: battery cells; A control circuit board is connected to the battery cell, the first pressure sensing element, and the pneumatic unit; the battery cell supplies power to the first pressure sensing element through the control circuit board, and the control circuit board also receives the compressive stress and / or tensile stress detected by the first pressure sensing element, and issues relevant instructions in response to the compressive stress or tensile stress detected by the first pressure sensing element being greater than or equal to a first preset threshold.

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