Pre-pressing pressure head and silicon-based OLED screen body packaging device

Abstract

The utility model belongs to the technical field of silicon-based OLED (Organic Light Emitting Diode) screen body packaging, and discloses a pre-pressing head and a silicon-based OLED screen body packaging device. The pre-pressing pressure head comprises a pressure head body, a vacuum adapter and a plugging assembly, the pressure head body is provided with a plurality of first channels which are distributed at equal intervals, and it can be guaranteed that the flexible circuit board is sucked to be flat. The vacuum adapter is detachably connected to the pressure head body, and the vacuum adapter is provided with a second channel; the plugging assembly is arranged between the vacuum adapter and the pressure head body and covers the inlets of the multiple first channels. When flexible circuit boards of different sizes are adsorbed, the blocking assembly can selectively communicate the outlet of the second channel with the inlets of the multiple first channels according to the sizes of the flexible circuit boards, the communication range can be adjusted, only the first channels corresponding to the sizes of the flexible circuit boards are communicated, resource waste is reduced, and adsorption force is guaranteed. The vacuum adapter and the pressure head body are detachable, so that the plugging assembly can be operated conveniently to adjust the communication range.

Description

Technical Field

[0001] This utility model relates to the field of silicon-based OLED screen packaging technology, and in particular to a pre-pressure head and a silicon-based OLED screen packaging device. Background Technology

[0002] Silicon-based OLED (Organic Light-Emitting Diode) displays boast numerous advantages such as high resolution, high integration, low power consumption, small size, and light weight. They are the core components of near-eye display systems and are widely used in AR glasses, VR headsets, infrared detectors, and 3D medical devices, with an increasingly large market share. Flexible printed circuits (FPCs) are the motherboards used to connect display panels and smart electronic devices. In practical applications, the FOG (FPC on Glass) manufacturing process is used to bond the FPC to the silicon-based OLED screen.

[0003] In the FOG manufacturing process, a pre-pressing head is used to pick up the FPC (Flexible Printed Circuit) and then heat-press it onto the silicon-based OLED screen. To meet the needs of different customers, silicon-based OLED displays vary in size, requiring FPCs of different dimensions to be designed accordingly. Existing pre-pressing heads have multiple vacuum holes; when picking up FPCs of different sizes, all vacuum holes are open, resulting in resource waste. Furthermore, incoming FPCs often have some warping. While the pre-pressing head picks up the FPC, it should also flatten it. Current pre-pressing heads cannot guarantee that the FPC will be flattened, leading to uneven Mark recognition points, causing camera recognition errors, and affecting subsequent alignment between the FPC and the silicon-based OLED screen. Utility Model Content

[0004] The purpose of this invention is to provide a pre-pressing head and a silicon-based OLED screen encapsulation device, which can reduce resource waste, ensure adsorption force, and ensure that the flexible circuit board is flattened when adsorbing flexible circuit boards of different sizes.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a pre-compression head is provided, comprising:

[0007] The pressure head body has multiple first channels distributed at equal intervals, and the outlet of the first channel is used to adsorb flexible circuit boards.

[0008] A vacuum adapter is detachably connected to the pressure head body. The vacuum adapter is provided with a second channel, the inlet of which is used to introduce gas.

[0009] A blocking assembly is disposed between the vacuum adapter and the pressure head body, and covers the inlets of multiple first channels. The blocking assembly can selectively connect the outlet of the second channel to the inlets of multiple first channels.

[0010] In some possible implementations, the sealing assembly includes a sealing element and a puncturing element, the sealing element being detachably connected to the pressure head body, and the puncturing element being capable of puncturing the sealing element to selectively connect the outlet of the second channel with the inlets of a plurality of first channels.

[0011] In some possible implementations, the sealing element is an adhesive tape that is adhered to the pressure head body.

[0012] In some possible implementations, the pressure head body is recessed with a mounting cavity, the inlets of the plurality of first channels are all connected to the mounting cavity, the vacuum adapter is detachably connected to the mounting cavity, and the outlet of the second channel is oriented toward the inlet of the first channel.

[0013] In some possible implementations, the sidewall of the pressure head body is recessed with the mounting cavity, the first channel is an L-shaped structure, the inlet of the L-shaped structure penetrates through the cavity wall of the mounting cavity, and the outlet of the first channel penetrates through the bottom of the pressure head body; the top of the pressure head body is used to connect the moving mechanism.

[0014] In some possible implementations, the vacuum adapter is made of a transparent material.

[0015] In some possible implementations, the pre-compression head further includes a vacuum valve fixed to the vacuum adapter for controlling the gas flowing through the second channel.

[0016] In some possible implementations, the pressure head body is provided with a first threaded hole for connecting a moving mechanism; and / or,

[0017] The pressure head body is provided with a second threaded hole, and the pre-pressure pressure head also includes a screw, which passes through the vacuum adapter and is threadedly connected to the second threaded hole.

[0018] In some possible implementations, the sealing element is made of a high-temperature resistant material.

[0019] On the other hand, a silicon-based OLED screen packaging device is provided, including a moving mechanism and a pre-pressing head as described in any of the above embodiments. The moving mechanism is connected to the pressing head body and is used to move the pressing head body and press a flexible circuit board adsorbed on the pressing head body onto the silicon-based OLED screen.

[0020] The beneficial effects of this utility model are:

[0021] The pre-pressing head provided by this utility model includes a head body, a vacuum adapter, and a sealing assembly. When adsorbing flexible circuit boards of different sizes, the sealing assembly can selectively connect the outlet of the second channel to the inlet of multiple first channels according to the size of the flexible circuit board, making the connection range adjustable. It can connect only the first channel corresponding to the size of the flexible circuit board, reducing resource waste and ensuring adsorption force for stable adsorption of the flexible circuit board. The vacuum adapter is detachably connected to the head body. After removing the vacuum adapter, it is convenient to operate the sealing assembly to adjust the connection range. In addition, the multiple first channels are evenly distributed, which ensures that the pre-pressing head flattens the flexible circuit board, which is beneficial for camera recognition.

[0022] This utility model also provides a silicon-based OLED screen packaging device. The pre-pressing head in the silicon-based OLED screen packaging device can reduce resource waste and ensure adsorption force when adsorbing flexible circuit boards of different sizes, and can also ensure that the flexible circuit boards are flattened. Attached Figure Description

[0023] Figure 1 This is a front view of the pre-pressing head and flexible circuit board provided by this utility model;

[0024] Figure 2 This is an attached view of the pre-compression head provided by this utility model;

[0025] Figure 3 This is a front view of the pressure head body involved in this utility model;

[0026] Figure 4 This is an attached view of the pressure head body involved in this utility model;

[0027] Figure 5 This is a front view of the vacuum adapter and vacuum valve involved in this utility model;

[0028] Figure 6 This is an attached view of the vacuum adapter and vacuum valve involved in this utility model;

[0029] Figure 7 This is a front view of the pressure head body, sealing component, and flexible circuit board involved in this utility model;

[0030] Figure 8 This is an attached view of the pressure head body, sealing component, and flexible circuit board involved in this utility model.

[0031] In the picture:

[0032] 1. Pressure head body; 11. First channel; 12. Mounting cavity; 13. First threaded hole; 14. Second threaded hole;

[0033] 2. Vacuum adapter; 3. Sealing component; 4. Vacuum valve;

[0034] 100. Flexible circuit board. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 8As shown, this utility model provides a pre-compression head, including a head body 1, a vacuum adapter 2, and a sealing assembly. The head body 1 has multiple first channels 11 distributed at equal intervals, and the outlet of the first channel 11 is used to adsorb a flexible circuit board 100. The vacuum adapter 2 is detachably connected to the head body 1 and has a second channel, the inlet of which is used to introduce gas. The sealing assembly is disposed between the vacuum adapter 2 and the head body 1 and covers the inlets of the multiple first channels 11. The sealing assembly can selectively connect the outlet of the second channel to the inlet of the multiple first channels 11.

[0040] When adsorbing flexible circuit boards 100 of different sizes, the sealing component can selectively connect the outlet of the second channel to the inlet of multiple first channels 11 according to the size of the flexible circuit board 100. This allows for adjustable connection range, enabling connection only to the first channel 11 corresponding to the size of the flexible circuit board 100, reducing resource waste, and ensuring adsorption force for stable adsorption of the flexible circuit board 100. The vacuum adapter 2 is detachably connected to the pressure head body 1. Disassembling the vacuum adapter 2 facilitates operation of the sealing component to adjust the connection range. Furthermore, the multiple first channels 11 are evenly spaced, ensuring that the pre-pressurized pressure head flattens the flexible circuit board 100, which is beneficial for camera recognition. In this embodiment, the multiple first channels 11 are evenly spaced and closely distributed, preventing the flexible circuit board 100 from falling off due to its left or right edge being outside the connection range. This reduces the number of vacuum alarms during the adsorption of flexible circuit boards 100, improves equipment uptime, reduces material damage, and improves product quality.

[0041] Optionally, in this embodiment, the sealing assembly includes a sealing element 3 and a puncturing element. The sealing element 3 is detachably connected to the pressure head body 1, and the puncturing element can puncture the sealing element 3, allowing the outlet of the second channel to selectively connect with the inlets of multiple first channels 11. This configuration is simple to operate and saves costs. When installing the pre-pressurized head, the sealing element 3 is first installed on the pressure head body 1, covering all the openings of the first channels 11. Then, holes are punched in the sealing element 3 to connect the outlet of the second channel with the inlet of the first channel 11. The number of holes, i.e., the connection range, is determined according to the size of the flexible circuit board 100. Finally, the vacuum adapter 2 is installed on the pressure head body 1. When replacing a flexible circuit board 100 of a different size, the vacuum adapter 2 is removed from the pressure head body 1. If the size is larger than the original flexible circuit board 100, holes are punched on the basis of the original sealing element 3. If the size is smaller than the original flexible circuit board 100, a new sealing element 3 is replaced, and holes are punched again.

[0042] In order to facilitate the puncturing of the sealing element 3, to facilitate the connection and replacement of the sealing element 3, and to ensure the sealing between the sealing element 3 and the pressure head body 1, specifically, in this embodiment, the sealing element 3 is an adhesive tape, which is adhered to the pressure head body 1.

[0043] Optionally, in this embodiment, the side of the sealing member 3 near the vacuum adapter 2 is provided with multiple positioning frames, and the multiple positioning frames are configured one-to-one with the inlets of the multiple first channels 11. The above configuration allows for more precise alignment when the sealing member 3 is installed on the pressure head body 1 by setting the positioning frames, and the puncture position of the sealing member 3 can be aligned with the inlet of the first channel 11.

[0044] Optionally, in other embodiments, each first channel 11 has an internal thread at its inlet, and the sealing assembly includes multiple screws, each screw corresponding to one of the first channels 11, and the screws are threadedly connected to the internal threads. With this configuration, by removing the screws, the outlet of the second channel is connected to the inlet of the first channel 11. The number of screws removed, i.e., the connection range, is determined according to the size of the flexible circuit board 100.

[0045] Optionally, such as Figure 4 As shown, the pressure head body 1 has a recessed mounting cavity 12. The inlets of multiple first channels 11 are all connected to the mounting cavity 12. The vacuum adapter 2 is detachably connected to the mounting cavity 12, and the outlet of the second channel faces the inlet of the first channel 11. Detachably connecting the vacuum adapter 2 to the mounting cavity 12 makes the pre-pressurized head structure more compact and space-saving. In this embodiment, the side wall of the pressure head body 1 has a recessed mounting cavity 12. The first channel 11 has an L-shaped structure, with the inlet of the L-shaped structure penetrating the cavity wall of the mounting cavity 12 and the outlet of the first channel 11 penetrating the bottom of the pressure head body 1. The top of the pressure head body 1 is used to connect to the moving mechanism. With this configuration, the vacuum adapter 2 is located on the side wall of the pressure head body 1, and the moving mechanism is connected to the top of the pressure head body 1, preventing interference between the vacuum adapter 2 and the moving mechanism.

[0046] Optionally, in this embodiment, the vacuum adapter 2 is made of a transparent material. This design allows the operator to easily observe the connectivity of the inlets of the multiple first channels 11 from outside the pre-compression head, and the connectivity of the inlets of each first channel 11 is visually visible.

[0047] Optionally, in this embodiment, the pre-compression head further includes a vacuum valve 4, which is fixed to the vacuum adapter 2 and used to control the gas flowing through the second channel. By setting the vacuum valve 4, it is possible to control whether gas flows into the second channel and the flow rate of the gas.

[0048] Optionally, in this embodiment, as Figure 3 and Figure 4As shown, the pressure head body 1 has a first threaded hole 13 for connecting the moving mechanism. This arrangement ensures a secure connection between the pressure head body 1 and the moving mechanism, and facilitates assembly and disassembly. Optionally, in this embodiment, the pressure head body 1 has a second threaded hole 14, and the pre-pressurized pressure head also includes a screw that passes through the vacuum adapter 2 and is threadedly connected to the second threaded hole 14. This arrangement ensures a secure connection between the vacuum adapter 2 and the pressure head body 1, and facilitates assembly and disassembly.

[0049] The pressure head body 1 also includes a heating element for subsequently hot-pressing the flexible circuit board 100 onto the silicon-based OLED screen. Optionally, the sealing element 3 is made of a high-temperature resistant material to prevent the pressure head body 1 from overheating, causing the sealing element 3 to decompose, oxidize, deform, or stick to the pressure head body 1 and become impossible to remove. In this embodiment, the sealing element 3 is a high-temperature resistant tape.

[0050] This invention also provides a silicon-based OLED screen encapsulation device, including a moving mechanism and a pre-pressing head. The moving mechanism is connected to the pressing head body 1 and is used to move the pressing head body 1, pressing the flexible circuit board 100 adsorbed on the pressing head body 1 onto the silicon-based OLED screen. The pre-pressing head in this silicon-based OLED screen encapsulation device can reduce resource waste, ensure adsorption force, and ensure that the flexible circuit board 100 is flattened when adsorbing flexible circuit boards 100 of different sizes.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A pre-compression head, characterized in that, include: The pressure head body (1) is provided with a plurality of first channels (11) distributed at equal intervals, and the outlet of the first channel (11) is used to adsorb flexible circuit boards (100). Vacuum adapter (2) is detachably connected to the pressure head body (1). The vacuum adapter (2) is provided with a second channel, and the inlet of the second channel is used to introduce gas. A blocking assembly is disposed between the vacuum adapter (2) and the pressure head body (1) and covers the inlets of a plurality of the first channels (11). The blocking assembly can selectively connect the outlet of the second channel to the inlets of a plurality of the first channels (11).

2. The pre-compression head according to claim 1, characterized in that, The sealing assembly includes a sealing element (3) and a puncturing element. The sealing element (3) is detachably connected to the pressure head body (1). The puncturing element can puncture the sealing element (3) so that the outlet of the second channel can selectively connect with the inlet of a plurality of first channels (11).

3. The pre-compression head according to claim 2, characterized in that, The sealing component (3) is an adhesive tape, which is adhered to the pressure head body (1).

4. The pre-compression head according to claim 1, characterized in that, The pressure head body (1) is recessed with an installation cavity (12), and the inlets of the plurality of first channels (11) are all connected to the installation cavity (12). The vacuum adapter (2) is detachably connected to the installation cavity (12), and the outlet of the second channel is set towards the inlet of the first channel (11).

5. The pre-compression head according to claim 4, characterized in that, The side wall of the pressure head body (1) is recessed with the mounting cavity (12), the first channel (11) is an L-shaped structure, the inlet of the L-shaped structure penetrates the cavity wall of the mounting cavity (12), and the outlet of the first channel (11) penetrates the bottom of the pressure head body (1); the top of the pressure head body (1) is used to connect the moving mechanism.

6. The pre-compression head according to claim 1, characterized in that, The vacuum adapter (2) is made of a transparent material.

7. The pre-compression head according to claim 1, characterized in that, The pre-pressurization head also includes a vacuum valve (4), which is fixed to the vacuum adapter (2) and is used to control the gas flowing through the second channel.

8. The pre-compression head according to claim 1, characterized in that, The pressure head body (1) is provided with a first threaded hole (13), which is used to connect a moving mechanism; and / or, The pressure head body (1) is provided with a second threaded hole (14), and the pre-pressure head also includes a screw, which passes through the vacuum adapter (2) and is threadedly connected to the second threaded hole (14).

9. The pre-compression head according to claim 2, characterized in that, The sealing component (3) is made of a high-temperature resistant material.

10. A silicon-based OLED screen packaging device, characterized in that, Includes a moving mechanism and a pre-pressing head as described in any one of claims 1-9, wherein the moving mechanism is connected to the pressing head body (1) for moving the pressing head body (1) and pressing the flexible circuit board (100) adsorbed on the pressing head body (1) onto the silicon-based OLED screen.

Images