Air floating platform, UV curing device and ink-jet printing equipment

By using a gas floating platform in the UV curing device and using a gas distribution device and an outlet pressure regulator valve to adjust the jet pressure, the problem of uneven ink distribution caused by the support platform is solved, and the uniform display of the OLED display panel is achieved.

CN223224094UActive Publication Date: 2025-08-15KATEEVA DISPLAY TECH (SHAOXING) LTD
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Patent Information

Application Number
CN202422192949.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-08-15
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

In the existing UV curing device, when the support platform supports the OLED display panel, the ink distribution is uneven, resulting in uneven display problems.

Method used

The air-floating platform is adopted to uniformly arrange multiple jet areas on the support platform, and adjust the jet pressure by using a gas distribution device and an air outlet pressure regulating valve to make the pressure in each jet area consistent, ensuring that the display panel remains in a horizontal state.

Benefits of technology

The uniform distribution of ink is achieved, the uneven display problem of the display panel is avoided, and the display quality of the OLED display panel is improved.

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Abstract

The utility model discloses an air floating platform, a UV curing device and ink-jet printing equipment, and the air floating platform comprises a supporting platform which is uniformly provided with a plurality of air injection areas; the gas distribution device is arranged on one side of the supporting platform and is configured to provide gas for the multiple gas injection areas so that the gas injection pressure intensity of the multiple gas injection areas can be balanced, and the gas distribution device comprises a box body configured to receive gas supplied from the outside; and the plurality of air outlet pressure regulating valves are arranged on the outer wall of the box body, and the plurality of air outlet pressure regulating valves are respectively connected to the plurality of air injection areas through a plurality of air pipes. The air outlet adjusting valves are adopted to adjust the air injection pressure intensity of the air injection areas on the supporting platform correspondingly, so that the air injection pressure intensity of the air injection areas is basically consistent, it is guaranteed that the display panel supported by the air floating platform and provided with ink is in the horizontal state, and it is avoided that ink on the display panel flows to cause uneven ink distribution; and the display of the finally formed display panel product is not uniform.
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Description

Technical Field

[0001] The present disclosure relates to the field of semiconductor equipment, and in particular to an air flotation platform, a UV curing device, and an inkjet printing device. Background Art

[0002] With the widespread adoption of 5G, smartphones are becoming increasingly popular. As a key component of mobile phones, screens are receiving increasing attention. OLED (organic light-emitting diode) screens are increasingly being adopted by mobile phone manufacturers due to their thinness, power efficiency, and excellent display quality. Flat panel display organic film inkjet deposition equipment, a core component of OLED screen production, evenly sprays light-curing ink onto glass substrates. The ink then flows through a UV module and cures under UV light, preventing moisture from corroding OLED components. Utility Model Content

[0003] The present disclosure provides an air flotation platform, comprising:

[0004] A supporting platform, with a plurality of jet areas evenly arranged on the supporting platform;

[0005] A gas distribution device is provided on one side of the support platform and is configured to provide gas to the multiple jet areas so that the jet pressures of the multiple jet areas are balanced. The gas distribution device includes:

[0006] The box body is configured to receive gas supplied from the outside;

[0007] A plurality of air outlet pressure regulating valves are arranged on the outer wall of the box body, and the plurality of air outlet pressure regulating valves are connected to the plurality of air injection areas through a plurality of air pipes respectively.

[0008] In some embodiments, the plurality of outlet pressure regulating valves are arranged in an array evenly on the top wall of the box body.

[0009] In some embodiments, each outlet pressure regulating valve is configured to be independently adjustable to adjust the injection pressure of its corresponding injection area.

[0010] In some embodiments, a plurality of air pipe joints are provided on the bottom surface of the support platform, and the plurality of air pipe joints are respectively connected to the plurality of jet areas, and the plurality of air pipe joints are configured to transmit the gas guided by the plurality of air pipes to the plurality of jet areas respectively.

[0011] In some embodiments, the plurality of tracheal connectors are evenly arranged in an array on the bottom surface of the support platform.

[0012] In some embodiments, an air inlet pipe is provided on the side wall of the box body, configured to transmit gas supplied from the outside to the box body, and the air inlet pipe is located at the center of the side wall.

[0013] In some embodiments, the air flotation platform further comprises:

[0014] The pressure detection device is configured to detect the jet pressures at the plurality of jet areas.

[0015] In some embodiments, the air flotation platform further comprises:

[0016] The posture detection device is configured to detect the horizontality of the display panel supported by the air floating platform.

[0017] Some embodiments of the present disclosure provide a UV curing device, comprising:

[0018] The air flotation platform described in the aforementioned embodiment;

[0019] The UV light source is movably suspended above the air floating platform.

[0020] The present disclosure provides an inkjet printing device, comprising:

[0021] The UV curing device described in the above embodiment.

[0022] The above solution of the embodiment of the present disclosure can have the following beneficial effects:

[0023] Multiple air outlet regulating valves are used to adjust the jet pressure of multiple jet areas on the support platform respectively, so that the jet pressure of multiple jet areas is basically consistent, ensuring that the display panel with ink supported by the air floating platform is in a horizontal state, avoiding the flow of ink on the display panel causing uneven ink distribution, resulting in uneven display of the final display panel product. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0025] Figure 1 A schematic diagram of a top view of the air flotation platform provided in some embodiments of the present disclosure;

[0026] Figure 2 A schematic diagram of the bottom structure of the support platform of the air flotation platform provided in some embodiments of the present disclosure;

[0027] Figure 3 A schematic structural diagram of a gas distribution device of an air flotation platform provided in some embodiments of the present disclosure;

[0028] Figure 4 A schematic structural diagram of a UV curing device provided in some embodiments of the present disclosure. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions, and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the accompanying drawings. It is apparent that the embodiments described are only a portion of the embodiments of the present disclosure, rather than all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort are intended to fall within the scope of protection of the present disclosure.

[0030] The terms used in the embodiments of the present disclosure are for the purpose of describing specific embodiments only and are not intended to limit the present disclosure. The singular forms "a," "an," "the," and "the" used in the embodiments of the present disclosure and the appended claims are also intended to include plural forms, and unless the context clearly indicates otherwise, "a plurality" generally includes at least two.

[0031] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0032] It should be understood that although the terms first, second, third, etc. may be used to describe the embodiments of the present disclosure, they should not be limited to these terms.

[0033] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or device comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or device. In the absence of further limitations, an element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the product or device comprising the element.

[0034] In the related art, in the manufacturing process of display panels, such as OLED display panels, the display panel with an ink coating is typically required to undergo a leveling process and a UV curing process in a UV curing device. During the leveling process, the display panel with the ink coating must be kept completely horizontal and allowed to stand for a certain period of time, so that the ink coating can more evenly cover the surface unevenness caused by the OLED components, ensuring uniform light emission from the OLED display panel. The curing process uses a UV light source to cure the display panel with the ink coating, ensuring that the ink is stably adhered to the surface of the OLED display panel.

[0035] The support platform used to support OLED display panels in conventional UV curing devices has holes in it that allow the support columns to extend and retract. As a result, when the OLED display panel is supported by this support platform for UV curing, the area corresponding to the holes in the OLED display panel will exhibit poor display quality. To overcome this drawback, some technicians have designed an air flotation platform for UV curing devices. This allows the OLED display panel to complete the leveling and UV curing processes without being released from the air flotation platform. This requires the air flotation platform to have a good air flotation effect, ensuring that the OLED display panel remains stably suspended on a horizontal surface.

[0036] In order to overcome the above problems, the present disclosure provides an air flotation platform, including: a supporting platform, on which multiple jet areas are evenly arranged; a gas distribution device, arranged on one side of the supporting platform, configured to provide gas to the multiple jet areas so that the jet pressures of the multiple jet areas are balanced, and the gas distribution device includes: a box body, configured to receive gas supplied from the outside; multiple air outlet pressure regulating valves, arranged on the outer wall of the box body, and the multiple air outlet pressure regulating valves are respectively connected to the multiple jet areas through multiple air pipes.

[0037] The air flotation platform disclosed herein uses multiple air outlet regulating valves to separately adjust the jet pressures of multiple jet areas on the support platform, so that the jet pressures of the multiple jet areas are basically consistent, ensuring that the display panel supported by the air flotation platform and filled with ink is in a horizontal state, avoiding the flow of ink on the display panel causing uneven ink distribution, resulting in uneven display of the final display panel product.

[0038] Optional embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0039] Figure 1 A schematic diagram of a top view of the air flotation platform provided in some embodiments of the present disclosure; Figure 2 A schematic diagram of the bottom structure of the support platform of the air flotation platform provided in some embodiments of the present disclosure; Figure 3 A schematic structural diagram of a gas distribution device for an air flotation platform according to some embodiments of the present disclosure.

[0040] like Figures 1 to 3 As shown, some embodiments of the present disclosure provide an air floating platform 100 , which includes a supporting platform and a gas distribution device 20 .

[0041] The supporting platform 10 is in the shape of a flat plate. A plurality of air-jet areas 11 are evenly arranged on the supporting platform 10. Figure 1As shown, the top surface of the support platform 10 is divided into a plurality of air-jet areas 11, for example, 15 of which are arranged in a 3×5 configuration. Each air-jet area 11 is densely covered with a plurality of irregularly distributed micron-sized air-jet holes, so that a stable and uniform airflow output can be formed in any air-jet area.

[0042] The gas distribution device 20 is disposed on one side of the support platform 10 and is connected to the support platform 10 via a gas pipe. The gas distribution device 20 is configured to provide gas to the multiple jet areas so that the jet pressures of the multiple jet areas are balanced, thereby ensuring a balanced and stable airflow output across the entire support platform.

[0043] The gas distribution device 20 includes a box body 21 and multiple outlet pressure regulating valves 22. The box body 21 is configured to receive gas supplied from the outside. For example, it is rectangular in shape and includes a box body 211 and a box cover 212 that snaps onto the box body. The box cover 212 snaps onto the box body 211 in a removable and sealing manner. The box body 211 and the box cover 212 enclose a control space for accommodating the gas introduced into the box body 21. The gas is, for example, an inert gas, such as nitrogen.

[0044] A plurality of outlet pressure regulating valves 21 are provided on the outer wall of the box body 21, and the plurality of outlet pressure regulating valves 21 are connected to the plurality of jetting areas 11 through a plurality of air pipes. Figure 3 As shown, a plurality of outlet pressure regulating valves 21 are provided on the outer wall of the box cover 212 , and each regulating outlet valve 21 is connected to a corresponding jet area 11 through an air pipe for providing high-pressure gas to the jet area.

[0045] In some embodiments, as Figure 3 As shown, the multiple outlet pressure regulating valves 21 are arranged in a uniform array on the top wall of the box body 21. Specifically, the multiple outlet pressure regulating valves 21 are arranged in a uniform array on the outer wall of the box cover 212, for example, in a 3×5 array. The outlets of the multiple outlet pressure regulating valves 21 face the same direction, facilitating uniform routing of the connected air pipes.

[0046] In some embodiments, each outlet pressure regulating valve 21 is configured to be independently adjustable to adjust the jet pressure of its corresponding jet area 11. By adjusting the outlet pressure regulating valves 21 to ensure that the jet pressures of multiple jet areas 11 are substantially consistent, the display panel supported by the air flotation platform and filled with ink is kept horizontal, thereby preventing uneven ink distribution caused by ink flow on the display panel and resulting in uneven display of the final display panel product.

[0047] In some embodiments, as Figure 2As shown, a plurality of air pipe joints 12 are provided on the bottom surface of the support platform 10 , and the plurality of air pipe joints 12 are respectively connected to the plurality of jet areas 11 , and the plurality of air pipe joints 12 are configured to transmit the gas guided by the plurality of air pipes to the plurality of jet areas 11 respectively.

[0048] In some embodiments, as Figure 2 As shown, the multiple air pipe connectors 12 are evenly arranged in an array on the bottom surface of the support platform 10, for example, a 3×5 array layout is adopted, and the air inlets of the multiple air pipe connectors 12 face the same direction to facilitate the unified wiring arrangement of the air pipes connected thereto.

[0049] In some embodiments, as Figure 2 As shown, an air inlet pipe 23 is provided on the side wall of the box body 20, configured to transmit externally supplied gas into the box body 20. The air inlet pipe 21 is located at the center of the side wall. Because the air inlet pipe 23 is perpendicular to the side wall of the box body and parallel to the top wall of the box body, external air enters and exits the box body 20. The gas does not directly impact the outlet pressure regulating valve 21. The gas pressure inside the box body is relatively stable before it is guided out through the outlet pressure regulating valves 22, ensuring stable gas output through each outlet pressure regulating valve 22.

[0050] In some embodiments, the air flotation platform 100 further includes a pressure detection device configured to detect the jet pressure at the multiple jet areas. Based on the detected jet pressure, the operator can adjust the outlet pressure regulating valve 22 to ensure that the jet pressures at the multiple jet areas are substantially consistent, thereby ensuring that the ink-filled display panel supported by the air flotation platform remains horizontal. In some embodiments, the pressure detection device can be a matching handheld pressure detection device. In some embodiments, the pressure detection device can also be a pressure detection device installed in the multiple air pipe connectors 12.

[0051] In some embodiments, the air flotation platform 100 further includes a posture detection device configured to detect the horizontality of the display panel supported by the air flotation platform. If the horizontality exceeds a threshold, the outlet pressure regulating valve 22 can be adjusted to ensure that the jet pressures in multiple jet zones are substantially uniform, thereby ensuring that the ink-filled display panel supported by the air flotation platform remains horizontal.

[0052] Figure 4 This is a schematic structural diagram of a UV curing device provided in some embodiments of the present disclosure. Figure 4 The gas distribution device 20 of the air flotation platform is not shown. Figure 4As shown, some embodiments of the present disclosure provide a UV curing device 1000. The UV curing device 200 includes the air flotation platform 100 described in the aforementioned embodiments and a UV light source 200. The UV light source 200 is movably suspended above the air flotation platform 100. Specifically, the bracket of the UV light source 200 is slidably connected to slide rails located on both sides of the air flotation platform 100. After the display panel completes the leveling process in the UV curing device, the UV light source 200 moves to illuminate the ink-coated display panel, thereby curing the ink thereon.

[0053] Some embodiments of the present disclosure further provide an inkjet printing device, which includes the UV curing device described in the aforementioned embodiments. The display panel performs an inkjet printing process, a leveling process, and a UV curing process in the inkjet printing device.

[0054] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. References to the common and similar parts between the various embodiments will be sufficient. For the systems or devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, their descriptions are relatively simple; for relevant details, refer to the descriptions of the methods.

[0055] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. An air flotation platform, characterized in that: include: A supporting platform, with a plurality of jet areas evenly arranged on the supporting platform; A gas distribution device is provided on one side of the support platform and is configured to provide gas to the multiple jet areas so that the jet pressures of the multiple jet areas are balanced. The gas distribution device includes: The box body is configured to receive gas supplied from the outside; A plurality of air outlet pressure regulating valves are arranged on the outer wall of the box body, and the plurality of air outlet pressure regulating valves are connected to the plurality of air injection areas through a plurality of air pipes respectively.

2. The air floating platform according to claim 1, wherein: The multiple air outlet pressure regulating valves are arranged on the top wall of the box body in an evenly arranged array.

3. The air floating platform according to claim 1, wherein: Each outlet pressure regulating valve is configured to be independently adjustable to adjust the injection pressure of its corresponding injection area.

4. The air floating platform according to claim 1, wherein: The bottom surface of the support platform is provided with a plurality of air pipe joints, the plurality of air pipe joints are respectively connected to the plurality of jet areas, and the plurality of air pipe joints are configured to transmit the gas guided by the plurality of air pipes to the plurality of jet areas respectively.

5. The air floating platform according to claim 4, wherein: The plurality of air pipe joints are evenly arranged in an array on the bottom surface of the support platform.

6. The air floating platform according to claim 1, wherein: An air inlet pipe is provided on the side wall of the box body and is configured to transmit gas supplied from the outside to the box body. The air inlet pipe is located at the center of the side wall.

7. The air flotation platform according to any one of claims 1 to 6, characterized in that: The air flotation platform further comprises: The pressure detection device is configured to detect the jet pressures at the plurality of jet areas.

8. The air flotation platform according to any one of claims 1 to 6, characterized in that: The air flotation platform further comprises: The posture detection device is configured to detect the horizontality of the display panel supported by the air floating platform.

9. A UV curing device, characterized in that: The UV curing device comprises: The air flotation platform according to any one of claims 1 to 8; The UV light source is movably suspended above the air floating platform.

10. An inkjet printing device, characterized in that: The inkjet printing device comprises: The UV curing device according to claim 9.