Terminal, assembly jig, and method for assembling terminal

By fixing the pressure-sensitive module to the back of the curved part of the terminal's display screen and utilizing sensor technology based on colloids and assembly fixtures, the problem of insufficient sensitivity of the pressure-sensitive side keys was solved, achieving higher operational sensitivity and display screen protection.

CN115914440BActive Publication Date: 2025-11-21BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202110972632.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-08-24
Publication Date
2025-11-21
Estimated Expiration
2041-08-24

AI Technical Summary

Technical Problem

The pressure-sensitive side buttons in existing terminals have poor sensitivity, especially when the display screen covers the side wall, resulting in a poor user experience.

Method used

The pressure-sensitive module is fixed to the back of the curved part of the display screen and bonded together with a first adhesive and a second adhesive. The drive module and sensor of the assembly fixture are used to ensure accurate positioning and connection strength, reducing the attenuation of force transmission.

Benefits of technology

The detection sensitivity of the pressure-sensitive module has been improved, enhancing the user experience, reducing the risk of display damage, and improving assembly accuracy and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present disclosure provides a terminal, an assembling jig and an assembling method of the terminal, the terminal comprising: a display screen comprising a planar portion and a curved portion, the curved portion being located at a side of the planar portion; and a pressure sensing module fixed at a back of the curved portion, the pressure sensing module being configured to detect a key operation conducted through the curved portion. The technical scheme of the present disclosure can improve the sensitivity of the pressure sensing module detection.
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Description

Technical Field

[0001] This disclosure relates to the field of electronic technology, and more particularly to a terminal, an assembly fixture, and a method for assembling the terminal. Background Technology

[0002] To preserve the device's appearance, pressure-sensitive side buttons are often used instead of traditional physical buttons. The pressure-sensitive module is installed on the inside of the device's sidewall. This module detects pressure applied to the sidewall, thus enabling the function of a pressure-sensitive side button. However, gripping the device by hand doesn't easily deform the sidewall, resulting in poor sensitivity of the pressure-sensitive side buttons. In particular, for devices with displays covering the sidewalls, the pressure applied when gripping the display is transmitted through the display to the sidewall, further reducing the sensitivity of the pressure-sensitive side buttons and impacting the user experience. Summary of the Invention

[0003] This disclosure provides a terminal, an assembly fixture, and a method for assembling the terminal.

[0004] According to a first aspect of the present disclosure, a terminal is provided, the terminal comprising:

[0005] The display screen includes a flat portion and a curved portion, the curved portion being located on the side of the flat portion;

[0006] A pressure-sensitive module is fixed to the back of the curved portion, and the pressure-sensitive module is used to detect key operations transmitted through the curved portion.

[0007] In some embodiments, the terminal further includes:

[0008] The first colloid adheres to the back of the pressure-sensitive module and the curved portion, and forms a gap between the pressure-sensitive module and the curved portion;

[0009] A second colloid fills the gap, and the second colloid is formed by curing a fluid adhesive that is filled in the gap.

[0010] In some embodiments, the terminal further includes:

[0011] The middle frame has through holes, and the pressure-sensitive module is distributed adjacent to the through holes;

[0012] The circuit board is electrically connected to the pressure-sensitive module through the through hole.

[0013] According to a second aspect of the present disclosure, an assembly fixture is provided, the assembly fixture comprising:

[0014] The first bracket has a first mounting position, which is used to mount the pressure-sensitive module of any of the terminals described in the first aspect above.

[0015] The second bracket has a second mounting position for mounting the display screen of the terminal described in any of the first aspects above.

[0016] A driving module is connected to the first bracket, the driving module being used to drive the first bracket to move toward the second bracket and to drive the pressure-sensitive module to connect with the display screen; and / or, the driving module being used to drive the first bracket away from the second bracket and to separate the first bracket from the pressure-sensitive module.

[0017] In some embodiments, the assembly fixture further includes:

[0018] A distance sensor, mounted on the first bracket, is used to detect the distance between the pressure-sensitive module and the curved surface portion when the drive module drives the first bracket to move toward the second bracket;

[0019] A pressure sensor, mounted on the first bracket, is used to detect the pressure transmitted to the curved surface portion via the pressure-sensitive module when the drive module drives the first bracket to move toward the second bracket.

[0020] In some embodiments, a first colloid is disposed on the pressure-sensitive module, and the driving module drives the first bracket to connect the pressure-sensitive module to the display screen through the first colloid.

[0021] In some embodiments, the assembly fixture further includes:

[0022] A heating module is mounted on the first bracket and located at the corresponding position of the first colloid on the pressure-sensitive module. It is used to heat the first colloid through the pressure-sensitive module to enhance the connection strength between the first colloid and the curved surface portion.

[0023] According to a third aspect of the present disclosure, a method for assembling a terminal is provided, the method comprising:

[0024] The pressure-sensitive module of the terminal described in the first aspect embodiment is mounted on the first bracket of the assembly fixture described in the second aspect embodiment;

[0025] Drive the first bracket to bring the pressure-sensitive module closer to the display screen;

[0026] Fix the pressure-sensitive module to the back of the curved portion of the display screen;

[0027] Separate the first bracket from the pressure-sensitive module.

[0028] In some embodiments, fixing the pressure-sensitive module to the back surface of the curved portion of the display screen includes:

[0029] The pressure-sensitive module is bonded and fixed to the curved surface portion using a first colloid.

[0030] The method further includes:

[0031] An adhesive is filled into the gap between the pressure-sensitive module and the curved surface portion;

[0032] The adhesive is cured to form a second colloid.

[0033] In some embodiments, before fixing the pressure-sensitive module to the back surface of the curved portion of the display screen, the method further includes:

[0034] The heating module of the assembly fixture is activated to heat the first colloid on the pressure-sensitive module, thereby strengthening the connection between the first colloid and the curved surface portion.

[0035] In some embodiments, driving the first bracket to bring the pressure-sensitive module closer to the display screen includes:

[0036] The distance between the first bracket and the pressure-sensitive module and the display screen is driven to meet a preset distance; wherein, the distance between the pressure-sensitive module and the display screen is detected by a distance sensor;

[0037] The method of fixing the pressure-sensitive module to the back of the curved portion of the display screen includes:

[0038] Apply pressure to the pressure-sensitive module to make the first colloid adhere to the display screen;

[0039] The pressure sensor monitors the pressure between the pressure-sensitive module and the display screen, ensuring that the pressure between them is equal to or less than a preset threshold.

[0040] In some embodiments, curing the adhesive to form a second colloid includes:

[0041] The adhesive is cured under preset temperature and / or preset humidity conditions.

[0042] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0043] As can be seen from the above embodiments, by fixing the pressure-sensitive module to the back of the curved part of the display screen, the force acting on the curved part can be directly transmitted to the pressure-sensitive module. The force does not need to pass through the side wall of the terminal's middle frame during the transmission process, which reduces the attenuation of the force during the transmission process from the display screen to the pressure-sensitive module and improves the sensitivity of the pressure-sensitive module detection.

[0044] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0045] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0046] Figure 1 This is one of the structural schematic diagrams of a terminal during the assembly process according to an exemplary embodiment;

[0047] Figure 2 This is a second structural schematic diagram of a terminal during the assembly process, according to an exemplary embodiment.

[0048] Figure 3 This is a flowchart illustrating a terminal assembly method according to an exemplary embodiment. Detailed Implementation

[0049] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0050] A first aspect of this disclosure provides a terminal, the terminal comprising:

[0051] The display screen 10 includes a flat portion 11 and a curved portion 12, wherein the curved portion 12 is located on the side of the flat portion 11;

[0052] A pressure-sensitive module 20 is fixed to the back of the curved portion 12. The pressure-sensitive module 20 is used to detect key operations transmitted through the curved portion 12.

[0053] In this embodiment of the disclosure, such as Figure 1 and Figure 2 As shown, the pressure-sensitive module 20 is fixed to the back of the curved portion 12 in the display screen 10. There is no other medium between the pressure-sensitive module 20 and the curved portion 12, allowing the force acting on the curved portion 12 to be directly transmitted to the pressure-sensitive module 20, thus improving the detection sensitivity of the pressure-sensitive module 20. Compared to mounting the pressure-sensitive module 20 on the inner side wall of the middle frame, the force acting on the curved portion 12 does not need to pass through the side wall of the middle frame during transmission, further reducing the attenuation of the force during transmission and further improving the detection sensitivity of the pressure-sensitive module 20.

[0054] Terminals include, but are not limited to, mobile phones, televisions, tablets, laptops, or wearable devices. Among them, mobile phones can be phablets or foldable phones.

[0055] Both the flat portion 11 and the curved portion 12 have user interfaces (UI). In practical applications, they are displayed as a whole. The curved portion 12 increases the display area and improves the user experience. The pressure-sensitive module 20 is placed on the back of the curved portion 12, which can detect button operations without affecting the display function of the curved portion 12, thus ensuring the display effect of the display screen 10.

[0056] The display screen can be a waterfall screen or a wraparound screen.

[0057] In some embodiments, the terminal further includes a touch module electrically connected to the display screen 10, used to detect touch operations on the display screen 10, wherein the force applied to trigger the touch operation is less than the force applied to trigger the button operation. Touch operations refer to operations such as selecting or deselecting content displayed on the display screen 10. In practical applications, the magnitude of the pressure applied can distinguish whether the current operation is a touch operation on the content displayed on the curved portion 12 or a button operation on the pressure-sensitive module 20, enriching the terminal's functionality.

[0058] In addition, other methods can be used to distinguish between touch operation and button operation. For example, the terminal has a first working mode and a second working mode. In the first working mode, the pressure-sensitive module 20 is in the on state and the touch module corresponding to the curved part 12 is in the off state. In the second working mode, the pressure-sensitive module 20 is in the off state and the touch module corresponding to the curved part 12 is in the on state.

[0059] In some embodiments, the terminal further includes a control module electrically connected to both the pressure-sensitive module and the touch module. The control module is configured to activate the pressure-sensitive module when the force applied to the curved surface is equal to or greater than a preset pressure, and to deactivate the pressure-sensitive module when the force is less than the preset pressure. In practical applications, after the screen is powered on, the touch module remains operational, but the pressure-sensitive module can be controlled to turn on and off independently. Furthermore, the pressure value determines whether the operation is a touch operation or a button operation; a touch operation is only performed when the pressure value is greater than a preset pressure; otherwise, only a touch operation is performed.

[0060] In some embodiments, the terminal includes two curved portions 12, which are respectively connected to the two long sides of the planar portion 11. In this case, the pressure-sensitive module 20 is located on the long sides of the planar portion 11 on the left and right sides. Taking a mobile phone as an example, when holding the phone, the pressure-sensitive module 20 fixed on the two curved portions 12 can be gripped and pressed.

[0061] In some embodiments, the terminal includes four curved surfaces 12, two of which are connected to the two long sides of the planar surface 11, and two of which are connected to the two short sides of the planar surface 11. In this case, the pressure-sensitive module 20 can be located on the curved surfaces 12 on the long sides of the planar surface 11 on the left and right sides, or on the curved surfaces 12 on the short sides of the planar surface 11 on the top and bottom sides.

[0062] In some other alternative embodiments, the terminal further includes:

[0063] The first adhesive 30 can be double-sided adhesive, which adheres to the back of the pressure-sensitive module 20 and the curved part 12, and forms a gap between the pressure-sensitive module 20 and the curved part 12.

[0064] A second colloid 40 is filled within the gap, and the second colloid 40 is formed by curing a fluid adhesive that is filled within the gap.

[0065] In this embodiment, the pressure-sensitive module 20 is fixed on the curved portion 12, and the pressure-sensitive module 20 and the display screen 10 are integrated into one unit.

[0066] The first adhesive 30 is used to initially fix the pressure-sensitive module 20 to the curved part 12. The first adhesive can be a solid adhesive or a liquid adhesive. When the first adhesive is a solid adhesive, compared with liquid adhesive, since the first adhesive 30 is a solid adhesive, after fixing the first adhesive 30 to the pressure-sensitive module 20, there is no need to perform operations related to adhesive dosage control and adhesive application during the connection process between the pressure-sensitive module 20 and the curved part 12. This reduces interference with the positioning operation between the pressure-sensitive module 20 and the display screen 10, which helps to improve the positioning accuracy between the pressure-sensitive module 20 and the display screen 10 and reduces the risk of the display screen 10 being damaged.

[0067] The second colloid 40 is used to reinforce the connection between the pressure-sensitive module 20 and the curved part 12, further improving the reliability of the connection between the pressure-sensitive module 20 and the display screen 10.

[0068] In practical applications, after the first colloid 30 initially fixes the pressure-sensitive module 20 to the curved portion 12, the originally independent pressure-sensitive module 20 and the display screen 10 are connected together, and a gap is formed between the pressure-sensitive module 20 and the curved portion 12. A fluid adhesive fills the gap, allowing the first colloid 30 to be immersed in the fluid second colloid. After the adhesive cures, a second colloid 40 is formed, with the first colloid 30 located inside the second colloid 40. Using both the first colloid 30 and the second colloid 40 to fix the pressure-sensitive module 20 and the display screen 10 not only improves the reliability of the connection between the pressure-sensitive module 20 and the display screen 10, but also helps improve the positioning accuracy of the pressure-sensitive module 20 and the display screen 10, reducing the risk of damage to the display screen 10.

[0069] In some other alternative embodiments, the first colloid 30 comprises double-sided adhesive and the second colloid 40 comprises hot melt adhesive.

[0070] In other words, the double-sided tape is a pressure-sensitive adhesive.

[0071] In some other alternative embodiments, the terminal further includes:

[0072] The middle frame has through holes for connection to the display screen, and the pressure-sensitive module is distributed adjacent to the through holes;

[0073] The circuit board is electrically connected to the pressure-sensitive module through the through hole.

[0074] In some embodiments, the terminal further includes: circuit wires passing through the through hole and electrically connecting the pressure-sensitive module and the circuit board respectively.

[0075] In practical applications, the mid-frame includes a base and sidewalls. The sidewalls are located at the edges of the base, and the display screen is mounted on the sidewalls, covering the base. The pressure-sensitive module is generally located on the outer side of the sidewall, away from the center of the base.

[0076] Typically, the terminal also includes a battery, with the battery and display screen located on opposite sides of the base. The pressure-sensitive module is electrically connected to both the circuit board and the battery.

[0077] Without limitation, the circuit board can be a motherboard.

[0078] A second aspect of this disclosure provides an assembly fixture 140, the assembly fixture 140 comprising:

[0079] The first bracket 110 has a first mounting position, which is used to mount the pressure-sensitive module 20 of the terminal described in the first aspect embodiment;

[0080] The second bracket 120 has a second mounting position 121, which is used to mount the display screen 10 of the terminal described in the first aspect embodiment;

[0081] A drive module 130 is connected to the first bracket 110. The drive module 130 is used to drive the first bracket 110 to move toward the second bracket 120 and drive the pressure-sensitive module 20 to connect with the display screen 10; and / or, the drive module 130 is used to drive the first bracket 110 away from the second bracket 120 and separate the first bracket 110 from the pressure-sensitive module 20.

[0082] like Figure 1 As shown, the first bracket 110 is used to support and fix the pressure-sensitive module 20, and drives the pressure-sensitive module 20 to move under the drive of the drive module 130.

[0083] Unrestricted, the first mounting position includes a through hole for communication with an air extraction device. After the pressure-sensitive module 20 covers the through hole, before the pressure-sensitive module 20 is fixed to the display screen 10, the air extraction device removes the air between the pressure-sensitive module 20 and the first bracket 110, creating a negative pressure that adsorbs the pressure-sensitive module 20 onto the first bracket 110. Once the pressure-sensitive module 20 is fixed to the display screen 10, the air extraction device stops extracting air, the negative pressure disappears, and the pressure-sensitive module 20 separates from the first bracket 110. It is understood that the pressure-sensitive module 20 and the first bracket 110 can also be fixed by other methods such as adhesive bonding or electrostatic adsorption.

[0084] like Figure 1 As shown, the second mounting position 121 includes a mounting groove, the flat portion 11 abuts against the bottom of the mounting groove, and the curved portion 12 abuts against the side wall of the mounting groove.

[0085] In a non-limiting sense, drive module 130 includes a robotic arm.

[0086] In some other alternative embodiments, the assembly fixture 140 further includes:

[0087] A distance sensor 160 is mounted on the first bracket 110 and is used to detect the distance between the pressure-sensitive module 20 and the curved surface portion 12 when the drive module 130 drives the first bracket 110 to move toward the second bracket 120.

[0088] A pressure sensor 150 is mounted on the first bracket 110 and is distributed at intervals with the distance sensor 160. It is used to detect the pressure value transmitted to the curved surface portion 12 through the pressure-sensitive module 20 when the drive module 130 drives the first bracket 110 to move toward the second bracket 120.

[0089] In practical applications, as the pressure-sensitive module 20 approaches the curved surface portion 12, the distance sensor 160 ensures that the first bracket 110 maintains a suitable distance between the pressure-sensitive module 20 and the curved surface portion 12, achieving initial positioning of the pressure-sensitive module 20 and the curved surface portion 12 and reducing the risk of damage to the display screen 10 caused by the first bracket 110. The pressure sensor 150, by detecting the pressure of the pressure-sensitive module 20 on the curved surface portion 12, further positions the relative relationship between the pressure-sensitive module 20 and the curved surface portion 12, ensuring minimal assembly and bonding pressure that does not exceed a preset threshold, thus preventing damage to the display screen 10 due to excessive pressure.

[0090] In some embodiments, the distance sensor is further used to detect the distance between the pressure-sensitive module and the back surface of the planar portion. By using the distance sensor to detect the distance between the pressure-sensitive module and the back surface of the curved portion, and the distance between the pressure-sensitive module and the back surface of the planar portion, the risk of the first bracket causing damage to the display screen is further reduced, and the protection effect on the display screen is improved.

[0091] When the pressure-sensitive module 20 comes into contact with the curved part 12, in order to ensure the fixation effect between the pressure-sensitive module 20 and the curved part 12, the drive module 130 will continue to drive the first bracket 110 to move the pressure-sensitive module 20 toward the curved part 12, and the pressure detected by the pressure sensor 150 will gradually increase, but the maximum pressure cannot exceed the maximum pressure that the display screen 10 can withstand. That is, the preset threshold of the pressure of the pressure-sensitive module 20 and the curved part 12 is less than the maximum pressure that the display screen 10 can withstand.

[0092] like Figure 1 As shown, the distance sensor 160 and the pressure sensor 150 can be integrated on the first bracket 110, forming a whole with the first bracket 110 for convenient use. Before connecting the pressure-sensitive module 20 and the display screen 10, the distance sensor 160 and the pressure sensor 150 are first installed on the first bracket 110 for pre-assembly.

[0093] The distance sensor 160 includes, but is not limited to, laser ranging modules, infrared ranging modules, or ultrasonic ranging modules.

[0094] In some other alternative embodiments, the pressure-sensitive module 20 is provided with a first colloid 30, and the driving module 130 drives the first bracket 110 to connect the pressure-sensitive module 20 to the display screen 10 through the first colloid 30.

[0095] The first adhesive 30 is a solid adhesive, for example, double-sided tape. The first adhesive 30 is used to initially fix the pressure-sensitive module 20 to the curved surface portion 12. Compared to liquid adhesive, fixing the solid first adhesive 30 to the pressure-sensitive module 20 eliminates the need for operations related to adhesive dosage control and application during the connection process between the pressure-sensitive module 20 and the curved surface portion 12. This reduces interference with the positioning operation between the pressure-sensitive module 20 and the display screen 10, improves the positioning accuracy of the pressure-sensitive module 20 and the display screen 10, and reduces the risk of the display screen 10 being damaged.

[0096] In some other alternative embodiments, the assembly fixture further includes:

[0097] The heating module 170 is mounted on the first bracket 110 and is located at the corresponding position of the first colloid 30 on the pressure-sensitive module 20. It is used to heat the first colloid 30 through the pressure-sensitive module 20 to strengthen the connection between the first colloid 30 and the curved part 12.

[0098] Unrestricted, such as Figure 1 As shown, the first colloid 30 and the heating module 170 are aligned.

[0099] Before the first colloid 30 comes into contact with the curved portion 12, it is heated by the heating module 170. Heating softens the first colloid 30, increasing its wettability and the contact area between it and the curved portion 12. This improves the adhesion between the first colloid 30 and the curved portion 12, increasing their bonding strength and further enhancing the reliability of the connection between the pressure-sensitive module 20 and the curved portion 12. Furthermore, increased wettability allows for better fixation of the pressure-sensitive module 20 and the display screen 10 under less pressure, further reducing damage to the display screen 10.

[0100] The heating module 170 is fixed on the first bracket 110, forming a whole with the distance sensor 160 and the pressure sensor 150.

[0101] In some embodiments, the first colloid includes a base layer and an adhesive layer located on the surface of the base layer. The first colloid is bonded to the pressure-sensitive module and the display screen respectively through the adhesive layer. In this case, the heating temperature can be greater than or equal to the melting point of the adhesive layer, but less than the tolerable temperature of the display screen 10 and the pressure-sensitive module 20. When heating the first colloid, only the adhesive layer can be partially softened, while the base layer remains unsoftened, maintaining its solid state before heating.

[0102] In practical applications, by controlling the heating temperature and heating time, the first colloid is kept in a basic solid state, only partially softened, and not in a fluid state. This not only improves the wettability of the first colloid, but also facilitates the positioning operation during the assembly process.

[0103] A third aspect of this disclosure provides a method for assembling a terminal, such as... Figure 3 As shown, the method includes:

[0104] Step S110: Install the pressure-sensitive module of the terminal described in the first aspect embodiment on the first bracket of the assembly fixture described in the second aspect embodiment;

[0105] Step S120: Drive the first bracket to bring the pressure-sensitive module closer to the display screen;

[0106] Step S130: Fix the pressure-sensitive module to the back of the curved portion of the display screen;

[0107] Step S140: Separate the first bracket from the pressure-sensitive module.

[0108] In step S110, the pressure-sensitive module can be fitted with the first mounting position of the first bracket.

[0109] Unrestricted, the first mounting position includes a through hole for communication with an air extraction device. After the pressure-sensitive module covers the through hole, before the pressure-sensitive module is fixed to the display screen, the air extraction device removes the air between the pressure-sensitive module and the first bracket, creating a negative pressure that adsorbs the pressure-sensitive module onto the first bracket. It is understood that the pressure-sensitive module and the first bracket can also be fixed by other methods such as adhesive bonding or electrostatic adsorption.

[0110] In step S120, as Figure 1 As shown, the first bracket is driven by the drive module of the assembly fixture, which moves the pressure-sensitive module closer to the curved part of the display screen.

[0111] In a non-limiting sense, the drive module includes a power source and a robotic arm, the power source providing power to the robotic arm to drive the first support to move. The power source includes, but is not limited to, motors or cylinders.

[0112] In step S130, the first bracket drives the pressure-sensitive module to gradually approach the curved surface until the pressure-sensitive module contacts the curved surface, thereby fixing the pressure-sensitive module and the curved surface.

[0113] In step S140, after the pressure-sensitive module and the back of the curved part are fixed, the fixed connection between the pressure-sensitive module and the curved part is released, and the first bracket is moved away from the second bracket. For example, if the pressure-sensitive module and the curved part are connected through a negative pressure environment generated by an air extraction device, the air extraction device stops extracting air, the negative pressure disappears, and the pressure-sensitive module separates from the first bracket. After the first bracket separates from the second bracket, as... Figure 2 As shown, the pressure-sensitive module is fixed on the display screen.

[0114] In some other alternative embodiments, fixing the pressure-sensitive module to the back of the curved portion of the display screen includes:

[0115] The pressure-sensitive module is bonded and fixed to the curved surface portion using a first colloid.

[0116] The method further includes:

[0117] An adhesive is filled into the gap between the pressure-sensitive module and the curved surface portion;

[0118] The adhesive is cured to form a second colloid.

[0119] The adhesive mentioned above is a second colloid in a molten state. The molten second colloid has fluidity and can fill the gaps corresponding to the curved part more fully, thereby improving the firmness between the pressure-sensitive module and the display screen.

[0120] In practical applications, a fluid adhesive can be applied to fill the gap between the pressure-sensitive module and the curved surface using a dispensing method.

[0121] The first adhesive is used to initially fix the pressure-sensitive module to the curved surface. Compared to liquid adhesive, since the first adhesive is a solid adhesive, after fixing the first adhesive to the pressure-sensitive module, there is no need for operations related to adhesive dosage control or adhesive application during the connection process between the pressure-sensitive module and the curved surface. This reduces interference with the positioning operation between the pressure-sensitive module and the display screen, which helps improve the positioning accuracy of the pressure-sensitive module and the display screen and reduces the risk of the display screen being damaged.

[0122] The second colloid is used to reinforce the connection between the pressure-sensitive module and the curved surface, further improving the reliability of the connection between the pressure-sensitive module and the display screen.

[0123] In some other alternative embodiments, before fixing the pressure-sensitive module to the back surface of the curved portion of the display screen, the method further includes:

[0124] The heating module of the assembly fixture is activated to heat the first colloid on the pressure-sensitive module, thereby strengthening the connection between the first colloid and the curved surface portion.

[0125] In practical applications, before the first colloid comes into contact with the curved surface, it is heated by a heating module. The heated colloid softens easily, increasing its surface wettability and improving adhesion when bonded to the curved surface. This increases the bonding strength between the first colloid and the curved surface, further enhancing the reliability of the connection between the pressure-sensitive module and the curved surface. Furthermore, increasing the wettability of the first colloid when bonded to the curved surface allows for fixing the pressure-sensitive module and the display screen under less pressure, further reducing damage to the display screen.

[0126] In some embodiments, the first colloid includes a base layer and an adhesive layer located on the surface of the base layer. The first colloid is bonded to the pressure-sensitive module and the display screen respectively through the adhesive layer. In this case, the heating temperature can be greater than or equal to the melting point of the adhesive layer, but less than the tolerable temperature of the display screen 10 and the pressure-sensitive module 20. When heating the first colloid, only the adhesive layer can be partially softened, while the base layer remains unsoftened, maintaining its solid state before heating.

[0127] In practical applications, by controlling the heating temperature and heating time, the first colloid is kept in a basic solid state, only partially softened, and not in a fluid state. This not only improves the wettability of the first colloid, but also facilitates the positioning operation during the assembly process.

[0128] In some other alternative embodiments, driving the first bracket to bring the pressure-sensitive module closer to the display screen includes:

[0129] The distance between the first bracket and the pressure-sensitive module and the display screen is driven to meet a preset distance; wherein, the distance between the pressure-sensitive module and the display screen is detected by a distance sensor;

[0130] The method of fixing the pressure-sensitive module to the back of the curved portion of the display screen includes:

[0131] Apply pressure to the pressure-sensitive module to make the first colloid adhere to the display screen;

[0132] The pressure sensor monitors the pressure between the pressure-sensitive module and the display screen, ensuring that the pressure between them is equal to or less than a preset threshold.

[0133] Before the pressure-sensitive module comes into contact with the curved surface, the pressure sensor detects a pressure value of 0. As the pressure-sensitive module begins to contact the curved surface and the pressure reaches a preset threshold, the pressure value detected by the pressure sensor gradually increases. The preset threshold refers to the pressure value that ensures the firmness between the pressure-sensitive module and the curved surface without damaging the display screen.

[0134] In some embodiments, after applying pressure to the pressure-sensitive module to bond the first colloid to the display screen, the method further includes maintaining the pressure between the pressure-sensitive module and the display screen. Maintaining pressure for a certain period after the pressure between the pressure-sensitive module and the display screen reaches a preset threshold is beneficial for further improving the connection strength between the pressure-sensitive module and the curved surface portion.

[0135] In some other alternative embodiments, curing the adhesive to form a second colloid includes:

[0136] The adhesive is cured under preset temperature and / or preset humidity conditions.

[0137] Unrestricted, the preset temperature can be room temperature (generally 20~28℃). The preset humidity condition refers to a relative humidity of 40-60%.

[0138] In a specific example, such as Figure 1 and Figure 2As shown, the assembly process of the terminal generally includes: firstly attaching pressure-sensitive double-sided adhesive (i.e., the first adhesive 30) to the pressure-sensitive module 20; placing the pressure-sensitive module 20 into the first bracket 110; the first bracket 110 integrates a pressure sensor 150, a heating and temperature control module (i.e., a heating module 170), and a laser ranging module. The pressure sensor 150 is used to control the pressure during assembly, the heating and temperature control module is used to heat the pressure-sensitive double-sided adhesive, and the laser ranging module is used to ensure assembly positioning accuracy. Then, the heating and temperature control module is activated, a specific temperature value is set, and the pressure-sensitive module 20 is heated for a specific period of time to heat the pressure-sensitive double-sided adhesive. After placing the display screen on the second mounting position 121 of the second bracket 120, the drive module 130 is activated. The robotic arm of the drive module 130 moves to a specific position according to a pre-set program. Position calibration is completed using a laser ranging module. The robotic arm performs position calibration to ensure that the position accuracy reaches the set value. Then, the pressure-sensitive module 20 is assembled and pressed onto the back of the display screen 10 and the pressure is maintained for a certain period of time. At the same time, the pressure sensor 150 monitors and controls the pressing pressure value in real time to ensure that the pressure does not exceed the set threshold and to avoid damage to the display screen 10. After the pressure-sensitive module 20 is assembled and pre-fixed, the drive module 130 drives the first bracket 110 to retreat to a specific position according to a pre-set program. Subsequently, the aforementioned display screen 10 and pressure-sensitive module 20, along with the second bracket 120, are placed into a dispensing machine. The dispensing machine is activated to spray a certain amount of hot melt adhesive, using the liquid hot melt adhesive to completely fill the gap between the pressure-sensitive module and the display screen. The display screen 10 and pressure-sensitive module 20 are then placed in an area with a temperature set to room temperature (generally 20~28℃) and a relative humidity of 40-60% for a certain period of time to cure the liquid hot melt adhesive. In this embodiment, heating the first adhesive 30 can reduce the pressure of the pressure-sensitive module 20 on the display screen 10 during assembly. Combined with the laser ranging module, this improves assembly accuracy and reduces the risk of damage to the display screen 10. The novel solution of using a mixture of the first adhesive 30 and the second adhesive 40 for fixation ensures bonding strength and reliability, improving the user experience.

[0139] The methods disclosed in the several method embodiments provided in this disclosure can be arbitrarily combined without conflict to obtain new method embodiments.

[0140] The features disclosed in the several product embodiments provided in this disclosure can be combined arbitrarily without conflict to obtain new product embodiments.

[0141] The features disclosed in the several method or product embodiments provided in this disclosure can be arbitrarily combined without conflict to obtain new method embodiments or product embodiments.

[0142] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0143] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A terminal, characterized in that, The terminal includes: The display screen includes a flat portion and a curved portion, the curved portion being located on the side of the flat portion; A pressure-sensitive module is fixed to the back of the curved portion, and the pressure-sensitive module is used to detect key operations transmitted through the curved portion; A first colloid is disposed on the pressure-sensitive module, adhering the pressure-sensitive module and the back of the curved portion, and forming a gap between the pressure-sensitive module and the curved portion; The middle frame has through holes for connection to the display screen, and the pressure-sensitive module is distributed adjacent to the through holes.

2. The terminal according to claim 1, characterized in that, The terminal also includes: A second colloid fills the gap, and the second colloid is formed by curing a fluid adhesive that is filled in the gap.

3. The terminal according to claim 1, characterized in that, The terminal also includes: The circuit board is electrically connected to the pressure-sensitive module through the through hole.

4. An assembly fixture, characterized in that, The assembly fixture includes: The first bracket has a first mounting position for mounting the pressure-sensitive module of the terminal according to any one of claims 1 to 3; The second bracket has a second mounting position for mounting the display screen of the terminal according to any one of claims 1 to 3; A driving module is connected to the first bracket, the driving module being used to drive the first bracket to move toward the second bracket and to drive the pressure-sensitive module to connect with the display screen; and / or, the driving module being used to drive the first bracket away from the second bracket and to separate the first bracket from the pressure-sensitive module.

5. The assembly fixture according to claim 4, characterized in that, The assembly fixture also includes: A distance sensor, mounted on the first bracket, is used to detect the distance between the pressure-sensitive module and the curved surface portion when the drive module drives the first bracket to move toward the second bracket; A pressure sensor, mounted on the first bracket, is used to detect the pressure transmitted to the curved surface portion via the pressure-sensitive module when the drive module drives the first bracket to move toward the second bracket.

6. The assembly fixture according to claim 4, characterized in that, The pressure-sensitive module is provided with a first colloid, and the driving module drives the first bracket to connect the pressure-sensitive module to the display screen through the first colloid.

7. The assembly fixture according to claim 5, characterized in that, The assembly fixture also includes: A heating module is mounted on the first bracket and located at the corresponding position of the first colloid on the pressure-sensitive module. It is used to heat the first colloid through the pressure-sensitive module to enhance the connection strength between the first colloid and the curved surface portion.

8. A method for assembling a terminal, characterized in that, The method includes: The pressure-sensitive module of the terminal according to any one of claims 1 to 3 is mounted on the first bracket of the assembly fixture according to any one of claims 4 to 7; Drive the first bracket to bring the pressure-sensitive module closer to the display screen; Fix the pressure-sensitive module to the back of the curved portion of the display screen; Separate the first bracket from the pressure-sensitive module.

9. The method for assembling a terminal according to claim 8, characterized in that, The method of fixing the pressure-sensitive module to the back of the curved portion of the display screen includes: The pressure-sensitive module is bonded and fixed to the curved surface portion using a first colloid. The method further includes: An adhesive is filled into the gap between the pressure-sensitive module and the curved surface portion; The adhesive is cured to form a second colloid.

10. The method for assembling a terminal according to claim 9, characterized in that, Before fixing the pressure-sensitive module to the back of the curved portion of the display screen, the method further includes: The heating module of the assembly fixture is activated to heat the first colloid on the pressure-sensitive module, thereby strengthening the connection between the first colloid and the curved surface portion.

11. The method for assembling a terminal according to claim 9, characterized in that, The method of driving the first bracket to move the pressure-sensitive module closer to the display screen includes: The distance between the first bracket and the pressure-sensitive module and the display screen is driven to meet a preset distance; wherein, the distance between the pressure-sensitive module and the display screen is detected by a distance sensor; The method of fixing the pressure-sensitive module to the back of the curved portion of the display screen includes: Apply pressure to the pressure-sensitive module to make the first colloid adhere to the display screen; The pressure sensor monitors the pressure between the pressure-sensitive module and the display screen, ensuring that the pressure between them is equal to or less than a preset threshold.

12. The method for assembling a terminal according to claim 9, characterized in that, The curing of the adhesive to form a second colloid includes: The adhesive is cured under preset temperature and / or preset humidity conditions.

Citation Information

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