Film transplanting device for display panel

Abstract

The utility model relates to a kind of film transplanting device of display panel, including tray, adsorption mechanism and plasma fan, tray is used to carry the film of display panel, adsorption mechanism is spacedly arranged in the top of tray;Tray includes tray body and elastic convex part, multiple elastic convex parts are protruded in the upper end surface of tray body and along first direction interval distribution;Adsorption mechanism is used to press the film on adsorption tray, adsorption mechanism and elastic convex part make film deformation to make several gaps between adjacent film, the length of elastic convex part extends along second direction;Plasma fan is located in the side of tray along second direction, first direction, second direction and vertical direction are perpendicular to each other, this film transplanting device can improve electrostatic elimination effect, effectively relieve the problem of film between electrostatic adhesion.

Description

Technical Field

[0001] This utility model relates to the field of display device manufacturing technology, and in particular to a thin film transfer device for a display panel. Background Technology

[0002] In the thin-film production process of display panels, such as Figure 1 As shown, multiple films 1' are generally stacked vertically on a tray 2', and then the adsorption mechanism 3' above the tray 2' presses down on the uppermost film 1' to sequentially adsorb and transfer the films 1' to the next station; a plasma fan 4' is provided on one side of the tray 2', which is used to blow air toward the film 1' to eliminate static electricity on the film 1' and prevent adjacent films 1' from sticking together through electrostatic adsorption.

[0003] However, due to the excellent flatness of film 1', when the adsorption mechanism 3' presses down on the topmost film 1', it causes film 1' to adhere tightly to the adjacent film 1', preventing the plasma air from making sufficient contact with the two adjacent films and thus failing to completely eliminate static electricity. Therefore, relying solely on the plasma fan 4' cannot completely solve the technical problem of the two adjacent films 1' sticking together, making it difficult for the adsorption mechanism 3' to transfer only one film 1' at a time. Utility Model Content

[0004] The purpose of this invention is to provide a thin-film transfer device for display panels that can eliminate static electricity in the thin film.

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

[0006] A thin-film transfer device for a display panel is provided, comprising:

[0007] A tray for carrying a thin film of a display panel, the tray including a tray body and elastic protrusions, a plurality of elastic protrusions protruding from the upper end surface of the tray body and spaced apart along a first direction, the length of the elastic protrusions extending along a second direction;

[0008] An adsorption mechanism, spaced apart above the tray, is used to press and adsorb the film on the tray. The adsorption mechanism and the elastic protrusions deform the film to create gaps between adjacent films.

[0009] A plasma fan, the plasma fan being located on one side of the tray along the second direction;

[0010] The second direction, the first direction, and the vertical direction are perpendicular to each other.

[0011] As a preferred embodiment of the thin-film transfer device for the display panel, the upper surface of the elastic protrusion is an upwardly convex arc-shaped surface, and the arc-shaped surface extends to the upper surface of the tray body at both ends along the first direction.

[0012] As a preferred embodiment of the thin-film transfer device for the display panel, the upper surface of the elastic protrusion is a plane, and the two sides of the elastic protrusion along the first direction are connected to the plane by an arc transition.

[0013] As a preferred embodiment of the thin-film transfer device for the display panel, the protrusion height of the elastic protrusion from the tray body is h, where 3mm≤h≤5mm.

[0014] As a preferred embodiment of the thin-film transfer device for the display panel, the maximum dimension of the portion of the elastic protrusion protruding from the tray body along the first direction is d, where 5mm≤d≤15mm.

[0015] In a preferred embodiment of a thin-film transfer device for a display panel, the elastic protrusion is a first flexible element.

[0016] As a preferred embodiment of the thin-film transfer device for the display panel, the tray body has mounting grooves that correspond one-to-one with the elastic protrusions, and the elastic protrusions are partially embedded in the mounting grooves.

[0017] As a preferred embodiment of the thin-film transfer device for the display panel, the elastic protrusion includes a second flexible member and a spring. A plurality of springs are spaced apart along the second direction. The bottom of the mounting groove is provided with limiting grooves corresponding to the springs. The thickness of the second flexible member is less than the depth of the mounting groove. The second flexible member is connected to the two side walls of the mounting groove along the first direction on both sides along the first direction. The lower end of the spring is fixed in the mounting groove, and the upper end of the spring abuts against the second flexible member, causing the second flexible member to deform and protrude from the upper surface of the tray body.

[0018] As a preferred embodiment of the thin-film transfer device for the display panel, the tray body is provided with the elastic protrusions on its edges along the first direction.

[0019] As a preferred embodiment of the thin-film transfer device for the display panel, a plurality of elastic protrusions are distributed between two elastic protrusions adjacent to the edge of the tray body along the first direction, and all the elastic protrusions are distributed at equal intervals along the first direction.

[0020] The advantages of this utility model compared to the prior art are:

[0021] This invention designs the elastic protrusions as strip-shaped structures with their length extending along a second direction. When the adsorption mechanism presses the adsorption film, the film presses against the elastic protrusions, causing them to undergo a certain elastic deformation. This, in turn, causes a certain deformation in the stacked films, creating a gap between adjacent films. The elastic protrusions extending along the second direction allow some of these gaps to be located between two adjacent elastic protrusions. These gaps extend to the edge of the film and face the air outlet of the plasma fan. The plasma air blown by the plasma fan enters between the two adjacent films through these gaps, ensuring full contact between the plasma air and the two adjacent film layers. This solves the problem of plasma air not being able to effectively enter between the films, prevents the films from sticking together due to electrostatic discharge, and improves the efficiency and reliability of film transplantation. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of a thin-film transfer device for display panels in the prior art;

[0024] Figure 2 This is a schematic diagram of the thin-film transfer device for the display panel described in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram showing the thin film of the display panel placed on a tray according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the adsorption mechanism pressing the film on the adsorption tray according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the pressed film according to an embodiment of the present invention;

[0028] Figure 6 This is a cross-sectional schematic diagram of a tray according to an embodiment of the present utility model;

[0029] Figure 7 This is a cross-sectional schematic diagram of another tray described in an embodiment of the present utility model;

[0030] Figure 8 This is a cross-sectional schematic diagram of another type of tray according to an embodiment of the present utility model;

[0031] Figure 9 This is a cross-sectional schematic diagram of another type of tray described in an embodiment of the present utility model;

[0032] Figure 10 for Figure 9 An enlarged schematic diagram of part A in the middle.

[0033] Figure 1middle:

[0034] 1', Thin film; 2', Tray; 3', Adsorption mechanism; 4', Plasma fan.

[0035] Figures 2 to 10 middle:

[0036] 1. Thin film; 2. Gap;

[0037] 100. Tray; 110. Tray body; 111. Mounting groove; 112. Limiting groove; 120. Elastic protrusion; 121. Second flexible component; 122. Spring; 200. Adsorption mechanism; 300. Plasma fan. Detailed Implementation

[0038] The advantages and features of this invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, this invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to complete the disclosure of this invention and to enable those skilled in the art to fully understand its scope, which is defined only by the scope of the claims. The same reference numerals denote the same constituent elements throughout the specification.

[0039] The present invention will now be described in detail with reference to the accompanying drawings.

[0040] like Figures 2 to 6 As shown, this embodiment provides a film transfer device for a display panel, including a tray 100, an adsorption mechanism 200, and a plasma fan 300. The tray 100 is used to support the film 1 of the display panel, and the adsorption mechanism 200 is spaced above the tray 100. The tray 100 includes a tray body 110 and elastic protrusions 120. Multiple elastic protrusions 120 protrude from the upper surface of the tray body 110 and are spaced apart along a first direction (X direction in the figure). The length of the elastic protrusions 120 extends along a second direction (Y direction in the figure). The adsorption mechanism 200 is used to press and adsorb the film 1 on the tray 100. The adsorption mechanism 200 and the elastic protrusions 120 deform the film 1 to create a plurality of gaps 2 between adjacent films 1. The plasma fan 300 is located on one side of the tray 100 along the second direction. The first direction, the second direction, and the vertical direction (Z direction in the figure) are perpendicular to each other.

[0041] It is understood that in this embodiment, the elastic protrusion 120 is designed as a strip-shaped structure with its length extending along the second direction. When the adsorption mechanism 200 presses the adsorption film 1, the adsorption mechanism 200 indirectly applies pressure to the elastic protrusion 120 through the film 1, causing the elastic protrusion 120 to produce a certain elastic deformation, thereby causing the stacked film 1 to also produce a certain deformation, creating a certain gap 2 between adjacent film 1. The elastic protrusion 120 with its length extending along the second direction can allow some of the gaps 2 to be located between two adjacent elastic protrusions 120. The gap 2 extends to the edge of the film 1 and faces the air outlet of the plasma fan 300. The plasma air blown by the plasma fan 300 enters between two adjacent film 1 through the gap 2, allowing the plasma air to fully contact the two adjacent layers of film 1, thereby solving the problem that the plasma air cannot effectively enter between the film 1, preventing the film 1 from sticking together due to electrostatics, and improving the efficiency and reliability of film 1 transplantation.

[0042] In this embodiment, the film 1 applied to the display panel has a certain hardness and no extensibility. When the adsorption mechanism 200 presses the film 1 on the adsorption tray 100, the film 1 will move away in a basically flat state, and the deformation is small. The gap 2 between two adjacent films 1 is also relatively small, but sufficient to allow plasma wind to blow into the gap 2.

[0043] The adsorption mechanism 200 is existing technology, which consists of multiple sets of suction cup assemblies and a driving component (not shown in the figure) that drives all suction cup assemblies to move up and down. The number of suction cup assemblies is not limited to two sets, but can also be three, four or more sets. All suction cup assemblies are connected by connectors (not shown in the figure), and the driving component is connected to the connectors for transmission, so as to synchronously drive all suction cup assemblies to move up and down. The specific details will not be elaborated further.

[0044] Optionally, the upper surface of the elastic protrusion 120 is an upwardly convex arc surface, which extends to the upper surface of the tray body 110 on both sides along the first direction, thereby providing the film 1 with a smooth, non-sharp contact surface; when the film 1 is pressed, the force is evenly distributed along the arc surface, avoiding stress concentration and protecting the surface of the film 1 from physical damage to the maximum extent.

[0045] In some other embodiments, such as Figure 7 As shown, the upper surface of the elastic protrusion 120 can be set as a plane, and the two sides of the elastic protrusion 120 along the first direction are connected to the plane by an arc transition. When the adsorption mechanism 200 presses the adsorption film 1, the stress is smoothly distributed in the arc transition area, avoiding the sharp concentration of stress, thereby fundamentally preventing the generation of indentations and creases.

[0046] Optionally, such as Figure 6As shown, the elastic protrusion 120 protrudes from the tray body 110 by a height h, where 3mm ≤ h ≤ 5mm. For example, the protrusion height h may include, but is not limited to, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, and 5mm. If the protrusion height h < 3mm, the gap 2 formed between the films 1 will be too small, resulting in high airflow resistance. The plasma wind will be unable to penetrate the narrow space between the multiple films 1 sufficiently and uniformly, leading to poor electrostatic elimination effect of the films 1. If the protrusion height h > 5mm, the deformation of the films 1 will be too large. On the one hand, it may exceed the elastic limit of the films 1, causing irreversible damage. On the other hand, the excessively large gap 2 may cause the airflow to be too dispersed, and the intensity of the ion wind per unit area will decrease, which will also affect the electrostatic elimination efficiency. Therefore, in this embodiment, the protrusion height h of the elastic protrusion 120 protruding from the tray body 110 is controlled within the range of 3mm to 5mm, which can generate a sufficiently large and uniform gap 2 to ensure that the plasma wind can effectively penetrate between adjacent films 1. At the same time, it is also a safe bending deformation range for most display panel films 1.

[0047] Optionally, the maximum dimension of the portion of the elastic protrusion 120 protruding from the tray body 110 along the first direction is d, where 5mm ≤ d ≤ 15mm.

[0048] Since the width of the elastic protrusion 120 directly determines the span of the bending area of ​​the film 1, in this embodiment, the maximum dimension d of the portion of the elastic protrusion 120 protruding from the tray body 110 along the first direction is controlled within the range of 5mm to 15mm. For example, the dimension d may include, but is not limited to, 5mm, 5.2mm, 5.5mm, 5.8mm, 6mm, 6.3mm, 6.5mm, 6.8mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, and 15mm. This allows the elastic protrusion 120 to provide stable support for the film 1 when it is pressed by the adsorption mechanism 200, preventing the film 1 from unstable shaking or twisting on the elastic protrusion 120. This avoids unstable deformation of the film 1 leading to inconsistent gap sizes or even partial closure, which would affect the uniformity of plasma treatment.

[0049] Optionally, the tray body 110 is provided with an elastic protrusion 120 near its edge along the first direction. Each layer of film 1 can deform to a certain extent along the edge of the first direction, thereby forming a gap 2 between the edges of two adjacent layers of film 1, avoiding the edges of two adjacent layers of film 1 from sticking together to form a vacuum sealed chamber, and reducing the difficulty of separating two adjacent layers of film 1.

[0050] Optionally, a plurality of elastic protrusions 120 are distributed between two elastic protrusions 120 on the edge of the adjacent tray body 110 along the first direction. All the elastic protrusions 120 are distributed at equal intervals along the first direction, so that when the film 1 is pressed, the span of the film 1 between any two elastic protrusions 120 is the same, and the deformation amplitude is also the same. The bending deformation of the film 1 is evenly distributed in each equidistant interval, avoiding stress concentration in a certain local area and protecting the film 1 to the greatest extent. At the same time, the height of the multiple gaps 2 formed between adjacent films 1 can be kept uniform to form a uniform and stable airflow channel.

[0051] like Figure 8 As shown, in some embodiments, the tray body 110 has mounting grooves 111 that correspond one-to-one with the elastic protrusions 120, and the elastic protrusions 120 are partially embedded in the mounting grooves 111.

[0052] By partially embedding the elastic protrusion 120 into the mounting groove 111, on the one hand, the installation stability of the elastic protrusion 120 on the tray body 110 can be improved; on the other hand, when the adsorption mechanism 200 presses the film 1, it causes the elastic protrusion 120 to undergo a certain elastic deformation. The mounting groove 111 can provide deformation space for the elastic deformation of the elastic protrusion 120, so that the elastic protrusion 120 is squeezed and deformed to the upper surface adjacent to the upper surface of the tray body 110, creating a gap 2 while further relieving the deformation of the film 1.

[0053] Optionally, the elastic protrusion 120 is a first flexible member. The material of the first flexible member is selected from sponge or rubber. Both sponge and rubber can provide the recoverable elastic deformation necessary to generate the gap 2, so that the elastic protrusion 120 has elasticity and good shape recovery ability, and can prevent the elastic protrusion 120 from damaging the film 1.

[0054] Optionally, the rubber may be selected from, but is not limited to, silicone rubber, nitrile rubber, chloroprene rubber, and EPDM rubber.

[0055] like Figure 9 and Figure 10As shown, in some embodiments, the elastic protrusion 120 includes a second flexible member 121 and a spring 122. A plurality of springs 122 are spaced apart along a second direction. The bottom of the mounting groove 111 is provided with limiting grooves 112 corresponding to the springs 122 one by one. The two sides of the second flexible member 121 along the first direction are connected to the two side walls of the mounting groove 111 along the first direction. The springs 122 are located in the mounting groove 111. The lower end of the spring 122 is fixed in the mounting groove 111. The upper end of the spring 122 abuts against the second flexible member 121, causing the second flexible member 121 to deform and protrude from the upper surface of the tray body 110.

[0056] After hundreds of thousands or even millions of continuous compressions, the polymer chains of sponges or rubber will fatigue and break, leading to permanent compression deformation (i.e., being flattened and unable to rebound) or cracking. The height of the resulting gap 2 gradually decreases, affecting the static elimination effect and requiring frequent replacement of the elastic protrusion 120. Therefore, in this embodiment, the elastic protrusion 120 is designed as a combination of a second flexible element 121 and a spring 122. The spring 122's excellent deformation recovery capability provides reliable and stable support for the film 1, while the flexibility of the second flexible element 121 ensures non-damaging contact with the film 1, guaranteeing the stability of the gap 2 between the films 1 and improving the static elimination effect of the film 1.

[0057] The material of the second flexible component 121 can be rubber or silicone with a certain thickness.

[0058] Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but can be made in various forms, and those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive.

Claims

1. A thin-film transfer device for a display panel, characterized in that, include: A tray for carrying a thin film of a display panel, the tray including a tray body and elastic protrusions, a plurality of elastic protrusions protruding from the upper end surface of the tray body and spaced apart along a first direction, the length of the elastic protrusions extending along a second direction; An adsorption mechanism, spaced apart above the tray, is used to press and adsorb the film on the tray. The adsorption mechanism and the elastic protrusions deform the film to create gaps between adjacent films. A plasma fan, the plasma fan being located on one side of the tray along the second direction; The first direction, the second direction, and the vertical direction are perpendicular to each other.

2. The thin-film transfer device for a display panel according to claim 1, characterized in that, The upper surface of the elastic protrusion is an upwardly convex arc-shaped surface, which extends to the upper surface of the tray body at both ends along the first direction.

3. The thin-film transfer device for a display panel according to claim 1, characterized in that, The upper surface of the elastic protrusion is a plane, and the two sides of the elastic protrusion along the first direction are connected to the plane by an arc transition.

4. The thin-film transfer device for a display panel according to claim 1, characterized in that, The elastic protrusion protrudes from the tray body at a height of h, where 3mm ≤ h ≤ 5mm.

5. The thin-film transfer device for a display panel according to claim 1, characterized in that, The maximum dimension of the portion of the elastic protrusion that protrudes from the tray body along the first direction is d, where 5mm ≤ d ≤ 15mm.

6. The thin-film transfer apparatus for a display panel according to any one of claims 1 to 5, characterized in that, The elastic protrusion is the first flexible component.

7. The thin-film transfer apparatus for a display panel according to any one of claims 1 to 5, characterized in that, The tray body has mounting grooves that correspond one-to-one with the elastic protrusions, and the elastic protrusions are partially embedded in the mounting grooves.

8. The thin-film transfer device for a display panel according to claim 7, characterized in that, The elastic protrusion includes a second flexible member and a spring. A plurality of springs are spaced apart along the second direction. The bottom of the mounting groove is provided with limiting grooves corresponding to the springs. The thickness of the second flexible member is less than the depth of the mounting groove. The second flexible member is connected to the two side walls of the mounting groove along the first direction on both sides along the first direction. The lower end of the spring is fixed in the mounting groove. The upper end of the spring abuts against the second flexible member, causing the second flexible member to deform and protrude from the upper surface of the tray body.

9. The thin-film transfer apparatus for a display panel according to any one of claims 1 to 5, characterized in that, The tray body is provided with an elastic protrusion near its edge along the first direction.

10. The thin-film transfer device for a display panel according to claim 9, characterized in that, A plurality of elastic protrusions are distributed between two elastic protrusions adjacent to the edge of the tray body along the first direction, and all the elastic protrusions are equally spaced along the first direction.

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