An OLED material feeding device

Abstract

This invention relates to the field of vapor deposition processes and discloses an OLED material feeding device. The OLED material feeding device includes a storage component, a discharge component, and an adjusting component. The storage component holds the OLED material, and the discharge component is mounted on the storage component. The discharge component has a non-communicating inlet channel and a discharge channel. The inlet channel is connected to the interior of the storage component, and the discharge channel extends to the end of the discharge component. The adjusting component is height-adjustably fitted onto the discharge component and has a receiving space within it. When the adjusting component is in a first position, the receiving space is connected to the inlet channel; when the adjusting component is in a second position, the receiving space is connected to the discharge channel. This invention features fewer operation steps, is convenient and quick, has a short operation time, controllable feeding volume, and fewer material transfers, avoiding the introduction of pollution and material waste. The entire feeding process is mainly carried out in a closed space, preventing dust diffusion and harm to the operator's health.

Description

Technical Field

[0001] This invention relates to the field of vapor deposition processes, and more particularly to an OLED material feeding device. Background Technology

[0002] In the process of forming organic light-emitting diode (OLED) display devices using the vapor deposition method, a quartz boat is usually used to add OLED material. First, the quartz boat is removed from the vapor deposition chamber, and then the OLED material is transferred into the quartz boat using a spatula and weighing paper. Finally, the quartz boat is put back into the vapor deposition chamber.

[0003] However, this feeding method has the following problems: the steps are complicated and time-consuming, the OLED material is transferred many times, which can easily introduce pollution, the residue of OLED material causes waste, the powdered OLED material is easy to diffuse, which poses a risk of inhalation by operators, and has an adverse impact on the cleanroom and laboratory environment. Summary of the Invention

[0004] Based on the above problems, the purpose of this invention is to provide an OLED material feeding device that is convenient, quick to operate, and time-saving.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An OLED material feeding device includes:

[0007] Storage components for holding OLED materials;

[0008] A discharge component is disposed on the storage component. The discharge component has an infeed channel and a discharge channel that are not interconnected. The infeed channel is connected to the interior of the storage component, and the discharge channel extends to the end of the discharge component.

[0009] An adjusting member is height-adjustably fitted onto the discharge member. The adjusting member has a receiving space. When the adjusting member is in the first position, the receiving space is connected to the feeding channel. When the adjusting member is in the second position, the receiving space is connected to the discharge channel.

[0010] As a preferred embodiment of the OLED material feeding device of the present invention, it further includes a trigger member, which is rotatably disposed on the material storage member, and the trigger member can push the adjusting member to slide from the first position to the second position on the material discharge member.

[0011] In a preferred embodiment of the OLED material feeding device of the present invention, an elastic element is provided between the adjusting element and the storage element, and the elastic element is used to reset the adjusting element.

[0012] As a preferred embodiment of the OLED material feeding device of the present invention, a plurality of accommodating spaces are provided, and the plurality of accommodating spaces are not interconnected with each other. An opening is provided on the side wall of the discharge channel, and the plurality of accommodating spaces can be selectively connected to the discharge channel through the opening.

[0013] As a preferred embodiment of the OLED material feeding device of the present invention, the multiple accommodating spaces have different volumes and are distributed circumferentially along the discharge member.

[0014] As a preferred embodiment of the OLED material feeding device of the present invention, the outer side wall of the discharge member is provided with a plurality of grinding protrusions at intervals, and the plurality of grinding protrusions are located between the feeding channel and the discharge channel.

[0015] As a preferred embodiment of the OLED material feeding device of the present invention, the outer wall of the discharge member is provided with a polytetrafluoroethylene layer; and / or, the inner wall of the adjusting member is provided with a polytetrafluoroethylene layer.

[0016] In a preferred embodiment of the OLED material feeding device of the present invention, the storage component is made of a light-shielding material.

[0017] In a preferred embodiment of the OLED material feeding device of the present invention, both the discharge component and the adjustment component are made of metal.

[0018] As a preferred embodiment of the OLED material feeding device of the present invention, the inner wall of the storage component is provided with a conductive coating.

[0019] The beneficial effects of this invention are as follows:

[0020] The OLED material feeding device provided by this invention, during feeding operations, involves inverting the entire OLED material feeding device. At this point, the adjusting component is in a first position, with its accommodating space connected to the feeding channel of the discharging component. The feeding and discharging channels of the discharging component are not interconnected. OLED material inside the storage container enters the accommodating space of the adjusting component via the feeding channel of the discharging component. The adjusting component is then moved vertically to a second position, where its accommodating space connects to the discharging channel of the discharging component. A fixed amount of OLED material in the accommodating space enters the discharging channel of the discharging component and is discharged from the end of the discharging component to the designated position of the feeding container. The OLED material feeding device provided by this invention has fewer operating steps, is convenient and quick, has a short feeding time, controllable feeding volume, and fewer material transfers, avoiding the introduction of pollution and material waste. The entire feeding process is mainly carried out in a closed space, preventing dust diffusion and harm to the operator's health. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the OLED material feeding device provided in a specific embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the OLED material feeding device (when the adjusting member is in the first position) provided in a specific embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the OLED material feeding device (when the adjusting member is in the second position) provided in a specific embodiment of the present invention.

[0025] In the picture:

[0026] 1-Storage component; 2-Discharge component; 3-Adjusting component; 4-Trigger component; 5-Elastic component;

[0027] 11-Bottle body; 12-Bottle cap;

[0028] 21-Feed channel; 211-First inclined surface; 22-Discharge channel; 221-Second inclined surface; 23-Grinding protrusion;

[0029] 24-Limit plate;

[0030] 31 - Accommodation space; 311 - Third slope; 32 - Anti-slip protrusion;

[0031] 41-Handle; 42-Rotating rod; 43-Hinge seat. Detailed Implementation

[0032] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0035] This embodiment provides an OLED material feeding device, which can be used to add OLED material during the evaporation deposition process. For example... Figures 1-3 As shown, the OLED material feeding device includes a storage component 1, a discharge component 2, and an adjusting component 3. The storage component 1 is used to hold the OLED material. The discharge component 2 is disposed on the storage component 1, and has a non-communicating infeed channel 21 and a discharge channel 22. The infeed channel 21 communicates with the interior of the storage component 1, and the discharge channel 22 extends to the end of the discharge component 2. The adjusting component 3 is height-adjustably fitted onto the discharge component 2, and has a receiving space 31. The adjusting component 3 is located in a first position (e.g., Figure 2 When (as shown), the accommodating space 31 is connected to the feeding channel 21, and the adjusting member 3 is in the second position (as shown). Figure 3 When (as shown), the accommodating space 31 is connected to the discharge channel 22.

[0036] During the feeding operation, the entire OLED material feeding device is inverted. At this time, the adjusting member 3 is in the first position, and the receiving space 31 of the adjusting member 3 is connected to the feeding channel 21 of the discharging member 2. The feeding channel 21 and the discharging channel 22 of the discharging member 2 are not connected to each other. The OLED material inside the storage unit 1 enters the receiving space 31 of the adjusting member 3 through the feeding channel 21 of the discharging member 2. The adjusting member 3 is then moved to the second position along the height direction. At this time, the receiving space 31 of the adjusting member 3 is connected to the discharging channel 22 of the discharging member 2. A certain amount of OLED material in the receiving space 31 enters the discharging channel 22 of the discharging member 2 and is discharged from the end of the discharging member 2 to the designated position of the feeding container. The entire feeding process has few operation steps, is convenient and quick, has a short time consumption, controllable feeding amount, and few material transfers, avoiding the introduction of pollution and material waste. The entire feeding process is mainly carried out in a closed space, avoiding dust diffusion and harming the health of operators.

[0037] To facilitate the addition of OLED material into the storage component 1, the storage component 1 may optionally include a bottle body 11 and a bottle cap 12. The bottle body 11 is used to contain the OLED material, and the bottle cap 12 is detachably disposed at the opening of the bottle body 11.

[0038] To prevent the OLED material inside the storage container 1 from deteriorating due to light exposure, the storage container 1 may optionally be made of a light-shielding material. In this embodiment, the bottle body 11 is made of brown glass, which is readily available, low in cost, and provides good light-shielding effect.

[0039] To facilitate moving the adjusting member 3 from the first position to the second position, the OLED material feeding device may optionally include a trigger member 4, which is rotatably mounted on the storage member 1. The trigger member 4 can push the adjusting member 3 to slide from the first position to the second position on the discharge member 2.

[0040] Optionally, the trigger 4 includes a handle 41, a rotating rod 42, and a hinge seat 43. The handle 41 is held by the operator and has a bent portion. One end of the rotating rod 42 is pivotally connected to the bent portion, and the other end is rotatably connected to the cap portion 12 of the storage component 1. The hinge seat 43 is slidably disposed on the discharge component 2 and abuts against the adjusting component 3. One end of the handle 41 is hinged to the hinge seat 43. When the handle 41 is rotated, since one end of the rotating rod 42 is pivotally connected to the bent portion of the handle 41, and the other end of the rotating rod 42 is fixed in position to the rotating connection end of the cap portion 12, according to the lever principle, the handle 41 drives the hinge seat 43 to slide on the discharge component 2 through its connection end with the hinge seat 43. The adjusting component 3 is pressed by the hinge seat 43 and moves from the first position to the second position, making operation convenient.

[0041] Optionally, an elastic element 5 is provided between the adjusting member 3 and the storage member 1. The elastic element 5 is used to reset the adjusting member 3. There can be one elastic element 5, sleeved on the outer peripheral wall of the discharging member 2. Alternatively, there can be multiple elastic elements 5, evenly distributed along the circumference of the discharging member 2. The elastic element 5 can be a compression spring. When the adjusting member 3 moves from the first position to the second position, the compression spring is compressed. When the operator releases the handle 41, the compression spring resets the adjusting member 3 from the second position to the first position. In this embodiment, to facilitate the installation of the elastic element 5, a limiting groove is provided on the outer peripheral wall of the discharging member 2. A limiting plate 24 is provided in the limiting groove. The limiting plate 24 can rotate relative to the discharging member 2 along the circumference of the discharging member 2 within the limiting groove, but cannot move relative to the discharging member 2 along the axial direction of the discharging member 2. The elastic element 5 is sandwiched between the limiting plate 24 and the adjusting member 3.

[0042] To fully utilize the internal space of the adjusting component 3, optionally, multiple receiving spaces 31 are provided, which are not interconnected. An opening is provided on the side wall of the discharge channel 22, through which one of the multiple receiving spaces 31 can be connected to the discharge channel 22. At the same time, providing multiple receiving chambers within the adjusting component 3 helps to reduce the weight of the adjusting component 3 and facilitates its movement and repositioning.

[0043] To facilitate adjustment of the discharge volume, optionally, the multiple receiving spaces 31 may have different volumes and be distributed circumferentially along the discharge component 2. Corresponding volume markings can be provided on the outer peripheral wall of the adjusting component 3. The operator can rotate the receiving space 31 of the corresponding volume within the adjusting component 3 to the opening side of the discharge channel 22 according to the required discharge volume. To facilitate turning the adjusting component 3, optionally, multiple anti-slip protrusions 32 may be provided at intervals on the outer peripheral wall of the adjusting component 3.

[0044] To ensure smooth discharge and sealing, the transition section between the feed channel 21 and the receiving space 31 can be configured as a first inclined surface 211, the transition section between the discharge channel 22 and the receiving space 31 can be configured as a second inclined surface 221, and the receiving space 31 can be configured with a third inclined surface 311. When the adjusting member 3 moves to the second position, the third inclined surface 311 and the second inclined surface 221 are flush.

[0045] As the receiving space 31 moves downward during the discharge process, some OLED materials are easily compressed and clump together, causing uncertainty in the discharge volume and resulting in discharge blockage and irregularities. To address this issue, alternatively, multiple grinding protrusions 23 are spaced apart on the outer wall of the discharge component 2, located between the feed channel 21 and the discharge channel 22. When the adjusting component 3 moves from the first position to the second position, some OLED material clumps within the receiving space 31 can be ground by the grinding protrusions 23, preventing blockage, avoiding material waste, and improving the accuracy of the discharge volume.

[0046] To reduce friction between the discharge component 2 and the adjusting component 3, optionally, a polytetrafluoroethylene (PTFE) layer is provided on the outer wall of the discharge component 2; and / or, a PTFE layer is provided on the inner wall of the adjusting component 3. PTFE possesses excellent chemical stability, corrosion resistance, sealing properties, high lubricity and non-stickiness, electrical insulation, and good anti-aging resistance. Providing a PTFE layer between the discharge component 2 and the adjusting component 3 can reduce resistance and wear between them.

[0047] Because OLED materials are prone to static electricity during the feeding process, especially since the end of the discharge component 2 is pointed, the OLED material is easily attracted to the end of the discharge component 2 when it is discharged. To prevent the OLED material from being attracted due to static electricity, optionally, both the discharge component 2 and the adjusting component 3 are made of metal. The static electricity in the discharge component 2 and / or the adjusting component 3 is conducted to the ground through the operator's body by holding the discharge component 2 and / or the adjusting component 3. Since the OLED material is a dry powder, it is easily attracted to the inner wall of the storage component 1 by static electricity, resulting in material waste. To release the static electricity on the inner wall of the storage component 1, optionally, a conductive coating is provided on the inner wall of the storage component 1. Specifically, a conductive coating is provided inside the bottle body 11, and the bottle cap 12 is made of metal. When the bottle cap 12 is tightened, the conductive coating of the bottle body 11 comes into contact with the metal bottle cap 12, which facilitates the release of static electricity. The static electricity discharge path of the inner wall of the storage component 1 is roughly as follows: when the cap 12 is tightened, the conductive plating layer of the bottle body 11 comes into contact with the metal cap 12. The static electricity of the inner wall of the storage component 1 is conducted to the cap 12 through the conductive plating layer in the bottle body 11. Since the cap 12 is in contact with the metal adjusting component 3, the static electricity is conducted to the adjusting component 3 through the cap 12, and then discharged to the ground through the operator's body.

[0048] The OLED material feeding device provided in this embodiment operates roughly as follows during feeding: First, open the cap 12 of the storage container 1, add an appropriate amount of OLED material into the body 11 of the storage container 1, and tighten the cap 12; second, invert the entire OLED material feeding device, at which point the adjusting member 3 is positioned in the first position under the action of the elastic member 5 (e.g., Figure 2 As shown), the OLED material inside the storage component 1 enters the receiving space 31 of the adjusting component 3 through the feeding channel 21 of the discharging component 2; then, the handle 41 of the trigger component 4 is moved, causing the hinge seat 43 of the trigger component 4 to push the adjusting component 3 downward to the second position (as shown). Figure 3 As shown), a fixed amount of OLED material in the containing space 31 enters the discharge channel 22 of the discharge component 2 and is discharged from the end of the discharge component 2 to the designated position of the feeding container; finally, the handle 41 is released, and the adjusting component 3 is reset to the first position under the action of the elastic component 5.

[0049] The OLED material feeding device provided in this embodiment has few operation steps, is convenient and quick, has a short operation time, controllable feeding amount, and few material transfers, thus avoiding the introduction of pollution and material waste. The entire feeding process is mainly carried out in a closed space, avoiding dust diffusion and harming the health of operators.

[0050] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An OLED material feeding device, characterized in that, include: Storage component (1) for containing OLED material; the storage component (1) includes a bottle body (11) and a bottle cap (12). The discharge component (2) is disposed on the storage component (1). The discharge component (2) is provided with a non-communicating feed channel (21) and discharge channel (22). The feed channel (21) is connected to the interior of the storage component (1), and the discharge channel (22) extends to the end of the discharge component (2). An adjusting member (3) is fitted onto the discharge member (2) in an adjustable height. The adjusting member (3) has a receiving space (31). When the adjusting member (3) is in the first position, the receiving space (31) is connected to the feeding channel (21). When the adjusting member (3) is in the second position, the receiving space (31) is connected to the discharge channel (22). Trigger (4), the trigger (4) is rotatably disposed on the storage component (1), the trigger (4) can push the adjusting component (3) to slide from the first position to the second position on the discharge component (2); The trigger (4) includes a handle (41), a rotating rod (42), and a hinge seat (43). The handle (41) is for the operator to hold. A bending part is provided on the handle (41). One end of the rotating rod (42) is pivotally connected to the bending part, and the other end is rotatably connected to the bottle cap part (12) of the storage part (1). The hinge seat (43) is slidably disposed on the discharge part (2) and abuts against the adjusting part (3). One end of the handle (41) is hinged to the hinge seat (43). An elastic element (5) is provided between the adjusting element (3) and the storage element (1), and the elastic element (5) is used to reset the adjusting element (3).

2. The OLED material feeding device according to claim 1, characterized in that, The accommodating space (31) is provided in multiple ways, and the multiple accommodating spaces (31) are not interconnected with each other. The side wall of the discharge channel (22) is provided with an opening, and the multiple accommodating spaces (31) can be connected to the discharge channel (22) through the opening.

3. The OLED material feeding device according to claim 2, characterized in that, The volumes of the multiple receiving spaces (31) are different and are distributed circumferentially along the discharge member (2).

4. The OLED material feeding device according to claim 1, characterized in that, The outer wall of the discharge component (2) is provided with a plurality of grinding protrusions (23) spaced apart, and the plurality of grinding protrusions (23) are located between the feed channel (21) and the discharge channel (22).

5. The OLED material feeding device according to claim 1, characterized in that, The outer wall of the discharge component (2) is provided with a polytetrafluoroethylene layer; and / or, the inner wall of the adjusting component (3) is provided with a polytetrafluoroethylene layer.

6. The OLED material feeding device according to claim 1, characterized in that, The storage component (1) is made of light-shielding material.

7. The OLED material feeding device according to any one of claims 1-6, characterized in that, Both the discharge component (2) and the adjusting component (3) are made of metal.

8. The OLED material feeding device according to claim 7, characterized in that, The inner wall of the storage component (1) is provided with a conductive plating layer.

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