An encapsulation device for manufacturing a flexible transparent display

By using a vacuum pump and suction cups to fix the substrate, combined with a motor-driven lead screw drive, epoxy resin can be coated evenly, solving the problems of substrate shaking and air residue, and improving the packaging quality and production efficiency of flexible transparent displays.

CN119653964BActive Publication Date: 2025-11-21GUOJING SHENGTAI (QINGDAO) DIGITAL DISPLAY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411947372.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-26
Publication Date
2025-11-21
Estimated Expiration
2044-12-26

AI Technical Summary

Technical Problem

In the current packaging process of flexible transparent displays, the substrate is prone to shaking and air residue can cause air bubbles, which affects the packaging quality.

Method used

A vacuum pump is used to generate negative pressure to fix the substrate. Combined with suction cup adsorption and reciprocating motor-driven screw transmission, epoxy resin is uniformly coated, reducing the probability of bubble formation.

Benefits of technology

This improved the packaging quality and production efficiency of flexible transparent displays, and reduced the defect rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of iron piece processing, in particular to a packaging device for manufacturing a flexible transparent display screen, which comprises a device body and a vacuum pump, a placing rack is slidably arranged in the device body, an adsorption plate is fixedly installed at the upper end of the placing rack, a suction cup is fixedly installed on the adsorption plate, air cylinders are fixedly installed at the two sides of the placing rack, and a communicating pipe is fixedly installed at one side of the air cylinder. The device body is provided with negative pressure by the vacuum pump, the air cylinder is driven to work by the negative pressure, and the substrate is adsorbed by the suction cup, so that the substrate can be fixed on the adsorption plate, meanwhile, the packaging material in the quantitative material tank is introduced into the internally-threaded sliding box through the epoxy resin pipe by the negative pressure, then the reciprocating motor is started to drive the screw rod to rotate, the internally-threaded sliding box slides to uniformly cover the epoxy resin on the substrate, and due to the negative pressure environment, the probability of bubble generation is greatly reduced, so that the packaging quality of the flexible transparent display screen is greatly improved.
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Description

Technical Field

[0001] This invention relates to the field of display screen processing technology, and in particular to a packaging device for manufacturing flexible transparent displays. Background Technology

[0002] Flexible transparent displays are a new type of display technology that combines the characteristics of transparent and flexible screens. They are an upgraded and innovative design based on conventional LED transparent screens, eliminating rigid light strips or PCB boards, making the screen thinner and more transparent, and possessing flexible and bendable properties. With the continuous advancement of technology and the increasing aesthetic demands of people, flexible transparent displays will gradually replace traditional display media and become the mainstream of future display technology.

[0003] The encapsulation of flexible transparent displays is a complex and delicate process that is crucial to ensuring the performance, reliability, and lifespan of the display. Good encapsulation can effectively prevent the penetration of moisture and oxygen, protecting the electronic components inside the display from the influence of the external environment. At the same time, the encapsulation layer can also improve the flexibility and weather resistance of the display, enabling it to adapt to various complex working environments and application scenarios.

[0004] In the existing technology, flexible transparent displays are usually placed on a frame during encapsulation. Workers pour epoxy resin on top of the display and let it stand, or use a curing lamp to cure the epoxy resin. During the curing process, the substrate cannot be fixed by other means, which may cause shaking. In addition, there is air residue on the surface of the substrate, which may cause bubbles and defects, thus reducing the encapsulation quality of the flexible transparent display.

[0005] Therefore, there is an urgent need to improve the packaging equipment used to manufacture flexible transparent displays in order to solve the aforementioned problems. Summary of the Invention

[0006] This invention provides a packaging device for manufacturing flexible transparent displays, which solves the defect of incomplete polishing in the prior art.

[0007] An encapsulation device for manufacturing a flexible transparent display screen includes a device body and a vacuum pump fixedly installed on the upper end of the device body. A placement frame is slidably arranged inside the device body. An adsorption plate is fixedly installed on the upper end of the placement frame. A suction cup is fixedly installed on the adsorption plate. Air cylinders are fixedly installed on both sides of the placement frame. A connecting pipe is fixedly installed on one side of the air cylinder. The end of the connecting pipe away from the air cylinder is fixedly connected to the bottom end of the suction cup.

[0008] A reciprocating motor is fixedly installed on one side of the device body. A lead screw is fixedly connected to the output end of the reciprocating motor. The lead screw passes through the device body and extends to the other side of the device body. The lead screw is rotated above the placement frame by the reciprocating motor. An internally threaded sliding box is slidably installed on the lead screw. A metering hopper is fixedly installed on the device body. An epoxy resin conduit is fixedly connected to the bottom end of the metering hopper. The end of the epoxy resin conduit away from the device body is fixedly connected to the upper end of the internally threaded sliding box.

[0009] Preferably, a cylinder is fixedly installed on the side of the device body near the reciprocating motor, and a telescopic rod is fixedly installed on the output end of the cylinder. The telescopic rod passes through the device body and extends into the interior of the device body.

[0010] Preferably, the placement frame includes two horizontal frames and several evenly distributed longitudinal ribs fixedly installed on the upper end of the horizontal frames. The adsorption plate is fixedly installed on the upper end of the longitudinal ribs. The end of the telescopic rod away from the cylinder is fixedly installed on the horizontal frame by bolts. A buffer spring is fixedly connected to the end of the horizontal frame away from the cylinder.

[0011] Preferably, the inner bottom side of the device body is provided with a transverse sliding groove, and the crossbar is slidably disposed inside the transverse sliding groove by means of the telescopic rod and the buffer spring.

[0012] Preferably, a return spring is fixedly installed inside the air cylinder, a piston is fixedly connected to the upper end of the return spring, a rod is fixedly installed at the upper end of the piston, and the rod passes through the air cylinder and extends to the top of the air cylinder.

[0013] Preferably, a lifting plate is fixedly installed at the upper end of the rod, a metal slider is fixedly installed on the side of the lifting plate, and a vertical groove is provided on the device body corresponding to the position of the metal slider, and the metal slider is slidably disposed inside the vertical groove.

[0014] An electrode plate is fixedly installed on the inner side of the vertical slide groove, and two electrode plates are connected in series with the power circuit of the reciprocating motor and the cylinder through wires.

[0015] Preferably, the connecting pipe includes a three-way pipe and a branch pipe fixedly connected to the three-way pipe, and the interior of the air cylinder is connected to the interior of the suction cup through the three-way pipe and the branch pipe.

[0016] Preferably, guide rods are fixedly installed on both sides of the lead screw, and the internal thread sliding box is slidably mounted on the lead screw through the guide rods.

[0017] Preferably, the bottom end of the internally threaded sliding box is fixedly connected to a distributing pipe, and the bottom end of the distributing pipe is fixedly installed with three evenly distributed feeding nozzles. The bottom end of the feeding nozzles corresponds to the adsorption plate. The interior of the distributing pipe is connected to the interior of the metering box through the internally threaded sliding box and the epoxy resin conduit.

[0018] Preferably, a glass door is slidably provided on the outer side of the device body, a sealing strip is fixedly provided on the upper end of the glass door, and a handle is fixedly provided on the side of the glass door.

[0019] This invention provides a packaging device for manufacturing flexible transparent displays. A vacuum pump extracts air to create negative pressure inside the device body. This negative pressure drives an air cylinder to work, and a suction cup adsorbs the substrate, firmly fixing it to the suction plate. Simultaneously, the negative pressure introduces packaging material from a metering hopper into an internally threaded sliding box via an epoxy resin conduit. Then, a reciprocating motor drives a lead screw to rotate, causing the internally threaded sliding box to slide and evenly cover the substrate with epoxy resin. Due to the negative pressure environment, the probability of air bubble formation is greatly reduced, thereby significantly improving the packaging quality of the flexible transparent display. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall elevation view of a packaging device for manufacturing a flexible transparent display screen provided in an embodiment of the present invention;

[0022] Figure 2 This is a cross-sectional view along line A-A' of a packaging device for manufacturing a flexible transparent display screen, provided in an embodiment of the present invention.

[0023] Figure 3 This is a structural diagram of a placement rack for a packaging device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0024] Figure 4 This is a structural diagram of an adsorption plate for an encapsulation device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0025] Figure 5 This is a diagram of a gas cylinder structure for an encapsulation device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0026] Figure 6This is a structural diagram of an internally threaded sliding box for a packaging device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of a reciprocating motor circuit for a packaging device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0028] Figure label:

[0029] 1. Device body; 101. Horizontal slide groove; 102. Vertical slide groove; 103. Electrode plate; 104. Glass door; 105. Sealing strip; 106. Handle; 2. Vacuum pump; 3. Placement rack; 31. Horizontal frame; 32. Longitudinal rib; 33. Buffer spring; 4. Adsorption plate; 5. Suction cup; 6. Air cylinder; 61. Return spring; 62. Piston; 63. Rod; 64. Lifting plate; 65. Metal slider; 7. Connecting pipe; 71. T-connector; 72. Branch pipe; 8. Reciprocating motor; 9. Lead screw; 10. Internal threaded sliding box; 11. Quantitative feed hopper; 12. Epoxy resin conduit; 13. Cylinder; 131. Telescopic rod; 14. Guide rod; 15. Distributing pipe; 16. Feed nozzle. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0031] The following is combined Figure 1 - Figure 7 This invention is described.

[0032] like Figure 1 and Figure 2 As shown, the packaging device for manufacturing a flexible transparent display screen provided in this embodiment includes a device body 1 and a vacuum pump 2 fixedly installed on the upper end of the device body 1. A placement frame 3 is slidably arranged inside the device body 1. An adsorption plate 4 is fixedly installed on the upper end of the placement frame 3. A suction cup 5 is fixedly installed on the adsorption plate 4. Air cylinders 6 are fixedly installed on both sides of the placement frame 3. A connecting pipe 7 is fixedly installed on one side of the air cylinder 6. The end of the connecting pipe 7 away from the air cylinder 6 is fixedly connected to the bottom end of the suction cup 5. The adsorption plate 4 is used to place the substrate, and the suction cup 5 is used to adsorb the bottom of the substrate.

[0033] A reciprocating motor 8 is fixedly installed on one side of the device body 1. A lead screw 9 is fixedly connected to the output end of the reciprocating motor 8. The lead screw 9 passes through the device body 1 and extends to the other side of the device body 1. The lead screw 9 is rotated and positioned above the placement frame 3 by the reciprocating motor 8. An internal thread sliding box 10 is slidably installed on the lead screw 9. A metering box 11 is fixedly installed on the device body 1. An epoxy resin conduit 12 is fixedly connected to the bottom end of the metering box 11. The end of the epoxy resin conduit 12 away from the device body 1 is fixedly connected to the upper end of the internal thread sliding box 10.

[0034] The vacuum pump 2 is used to extract the air from the inside of the device body 1, generating a negative pressure inside the device body 1. The negative pressure drives the air cylinder 6 to work and adsorbs the substrate through the suction cup 5, which can firmly fix the substrate on the adsorption plate 4. At the same time, the negative pressure introduces the packaging material inside the quantitative material box 11 into the internal thread sliding box 10 through the epoxy resin conduit 12 for pouring. Then, the reciprocating motor 8 drives the lead screw 9 to rotate, and the internal thread sliding box 10 slides to evenly cover the epoxy resin on the substrate. Due to the negative pressure environment, the probability of bubble formation is greatly reduced, thereby greatly improving the packaging quality of the flexible transparent display screen.

[0035] Figure 3 This is a structural diagram of a placement rack for a packaging device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0036] like Figure 3 As shown, a cylinder 13 is fixedly installed on the side of the device body 1 near the reciprocating motor 8. A telescopic rod 131 is fixedly installed at the output end of the cylinder 13. The telescopic rod 131 passes through the device body 1 and extends into the interior of the device body 1. The placement frame 3 includes two horizontal frames 31 and several evenly distributed longitudinal ribs 32 fixedly installed on the upper end of the horizontal frames 31. The adsorption plate 4 is fixedly installed on the upper end of the longitudinal ribs 32. The end of the telescopic rod 131 away from the cylinder 13 is fixedly installed on the horizontal frame 31 by bolts. A buffer spring 33 is fixedly connected to the end of the horizontal frame 31 away from the cylinder 13. A transverse sliding groove 101 is opened on the inner bottom side of the device body 1. The horizontal frame 31 is slidably arranged inside the transverse sliding groove 101 through the telescopic rod 131 and the buffer spring 33.

[0037] In this process, after the epoxy resin is poured onto the substrate through the internally threaded sliding box 10, the two cylinders 13 start to work. The cylinders 13 drive the crossbar 31 to slide back and forth inside the transverse sliding groove 101 through the telescopic rod 131. Then, the adsorption plate 4 is shaken through the longitudinal rib 32, which can make the epoxy resin and the substrate adhere more tightly. On the one hand, it can improve the density of the epoxy resin, and on the other hand, it can make the epoxy resin coating smoother, thereby greatly reducing the defect rate of flexible transparent display production.

[0038] Figure 4This is a structural diagram of an adsorption plate for an encapsulation device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0039] Figure 5 This is a diagram of a gas cylinder structure for an encapsulation device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0040] like Figure 4 and Figure 5 As shown, a return spring 61 is fixedly installed inside the air cylinder 6. A piston 62 is fixedly connected to the upper end of the return spring 61. A rod 63 is fixedly installed to the upper end of the piston 62. The rod 63 passes through the air cylinder 6 and extends to the top of the air cylinder 6. The connecting pipe 7 includes a three-way pipe 71 and a branch pipe 72 fixedly connected to the three-way pipe 71. The inside of the air cylinder 6 is connected to the inside of the suction cup 5 through the three-way pipe 71 and the branch pipe 72. When the vacuum pump 2 extracts the air from the inside of the device body 1, the pressure inside the air cylinder 6 increases, which pushes the piston 62 to slide upward and extracts the air from the connecting pipe 7. At this time, the pressure between the suction cup 5 and the bottom of the substrate decreases, so the substrate will be firmly fixed on the adsorption plate 4, preparing for the shaking of the placement rack 3.

[0041] At the same time, such as Figure 2 and Figure 7 As shown, a lifting plate 64 is fixedly installed on the upper end of the rod 63, and a metal slider 65 is fixedly installed on the side of the lifting plate 64. A vertical groove 102 is provided on the main body 1 corresponding to the position of the metal slider 65, and the metal slider 65 is slidably disposed inside the vertical groove 102. An electrode plate 103 is fixedly disposed on the inner side of the vertical groove 102, and two electrode plates 103 are connected in series in the power circuit of the reciprocating motor 8 through wires.

[0042] During the upward sliding of piston 62, rod 63 drives lifting plate 64 and metal slider 65 to slide upward. When metal slider 65 slides inside vertical slide groove 102 and contacts electrode plate 103, reciprocating motor 8 and cylinder 13 are energized and slide through screw drive internal thread sliding box 10 to pour epoxy resin. Cylinder 13 works to push and prevent frame from sliding and vibrating, simplifying control logic.

[0043] Vacuum pump 2 controls the negative pressure inside device body 1 within a certain range to balance the air pressure inside the air cylinder. When the air pressure inside device body 1 is too low, the base plate will detach from suction 54. At this time, piston 62 will reset under the action of return spring 61, and metal slider 65 will slide down and detach from electrode plate, thereby de-energizing reciprocating motor 2 and cylinder and stopping work.

[0044] Figure 6 This is a structural diagram of an internally threaded sliding box for a packaging device used in manufacturing a flexible transparent display screen, provided by an embodiment of the present invention.

[0045] like Figure 6 As shown, a distribution pipe 15 is fixedly connected to the bottom end of the internally threaded sliding box 10. Three evenly distributed discharge nozzles 16 are fixedly installed at the bottom end of the distribution pipe 15. The bottom ends of the discharge nozzles 16 correspond to the adsorption plate 4. The interior of the distribution pipe 15 is connected to the interior of the quantitative material box 11 through the internally threaded sliding box 10 and the epoxy resin conduit 12. The distribution pipe 15 plays a crucial role in distributing the material. The three evenly distributed discharge nozzles 16 at its bottom end allow the material conveyed from the threaded sliding box 10 to be evenly divided into three paths, flowing out through the three discharge nozzles 16 respectively. The three discharge nozzles 16 ensure uniform spatial distribution of the material, improving production quality and efficiency.

[0046] In addition, such as Figure 1 As shown, guide rods 14 are fixedly installed on both sides of the lead screw 9. The internal thread sliding box 10 is slidably mounted on the lead screw 9 through the guide rods 14. The guide rods 14 provide precise guidance for the movement direction of the internal thread sliding box 10. When the lead screw 9 rotates, the internal thread sliding box 10 will have an axial displacement tendency due to the threaded engagement with the lead screw 9, making the movement more accurate and stable.

[0047] At the same time, such as Figure 1 As shown, a glass door 104 is slidably disposed on the outside of the device body 1. A sealing strip 105 is fixedly disposed on the upper end of the glass door 104, and a handle 106 is fixedly disposed on the side of the glass door 104. The glass door 104 is slidably disposed on the outside of the device body 1, and firstly plays a protective role. The glass door 104 and the sealing strip can prevent external dust, impurities and other contaminants from entering the interior of the device body 1, and protect the substrate encapsulation from interference from the external environment.

[0048] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0049] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A packaging device for manufacturing a flexible transparent display screen, comprising a device body (1) and a vacuum pump (2) fixedly mounted on the upper end of the device body (1), characterized in that: The device body (1) has a sliding rack (3) inside. An adsorption plate (4) is fixedly installed on the upper end of the rack (3). A suction cup (5) is fixedly installed on the adsorption plate (4). An air cylinder (6) is fixedly installed on both sides of the rack (3). A connecting pipe (7) is fixedly installed on one side of the air cylinder (6). The end of the connecting pipe (7) away from the air cylinder (6) is fixedly connected to the bottom end of the suction cup (5). A reciprocating motor (8) is fixedly installed on one side of the device body (1). A lead screw (9) is fixedly connected to the output end of the reciprocating motor (8). The lead screw (9) passes through the device body (1) and extends to the other side of the device body (1). The lead screw (9) is rotatably mounted above the placement frame (3) by the reciprocating motor (8). An internal thread sliding box (10) is slidably mounted on the lead screw (9). A quantitative material box (11) is fixedly installed on the device body (1). An epoxy resin conduit (12) is fixedly connected to the bottom end of the quantitative material box (11). The end of the epoxy resin conduit (12) away from the device body (1) is fixedly connected to the upper end of the internal thread sliding box (10). A cylinder (13) is fixedly installed on the side of the device body (1) near the reciprocating motor (8). A telescopic rod (131) is fixedly installed at the output end of the cylinder (13). The telescopic rod (131) passes through the device body (1) and extends into the interior of the device body (1). The placement frame (3) includes two cross frames (31) and several evenly distributed longitudinal ribs (32) fixedly installed on the upper end of the cross frames (31). The adsorption plate (4) is fixedly installed on the upper end of the longitudinal ribs (32). The end of the telescopic rod (131) away from the cylinder (13) is fixedly installed on the cross frame (31) by bolts. A buffer spring (33) is fixedly connected to the end of the cross frame (31) away from the cylinder (13).

2. The packaging device for manufacturing a flexible transparent display screen according to claim 1, characterized in that: The inner bottom side of the device body (1) is provided with a transverse sliding groove (101), and the cross frame (31) is slidably disposed inside the transverse sliding groove (101) by means of the telescopic rod (131) and the buffer spring (33).

3. The packaging device for manufacturing a flexible transparent display screen according to claim 2, characterized in that: A return spring (61) is fixedly installed inside the air cylinder (6). A piston (62) is fixedly connected to the upper end of the return spring (61). A rod (63) is fixedly installed at the upper end of the piston (62). The rod (63) passes through the air cylinder (6) and extends to the top of the air cylinder (6).

4. The packaging apparatus for manufacturing a flexible transparent display screen according to claim 3, characterized in that: A lifting plate (64) is fixedly installed at the upper end of the rod (63), and a metal slider (65) is fixedly installed on the side of the lifting plate (64). A vertical groove (102) is provided on the main body of the device (1) corresponding to the position of the metal slider (65). The metal slider (65) is slidably disposed inside the vertical groove (102). An electrode plate (103) is fixedly disposed on the inner side of the vertical groove (102). The two electrode plates (103) are connected in series with the power circuit of the reciprocating motor (8) and the cylinder (13) through wires.

5. The packaging device for manufacturing a flexible transparent display screen according to claim 4, characterized in that: The connecting pipe (7) includes a three-way pipe (71) and a branch pipe (72) fixedly connected to the three-way pipe (71). The interior of the air cylinder (6) is connected to the interior of the suction cup (5) through the three-way pipe (71) and the branch pipe (72).

6. The packaging apparatus for manufacturing a flexible transparent display screen according to claim 1, characterized in that: Guide rods (14) are fixedly installed on both sides of the lead screw (9), and the internal thread sliding box (10) is slidably mounted on the lead screw (9) through the guide rods (14).

7. The packaging apparatus for manufacturing a flexible transparent display screen according to claim 1, characterized in that: The bottom end of the internal thread sliding box (10) is fixedly connected to a distributing pipe (15), and the bottom end of the distributing pipe (15) is fixedly installed with three evenly distributed feeding nozzles (16). The bottom end of the feeding nozzles (16) corresponds to the adsorption plate (4). The inside of the distributing pipe (15) is connected to the inside of the quantitative material box (11) through the internal thread sliding box (10) and the epoxy resin conduit (12).

8. The packaging apparatus for manufacturing a flexible transparent display screen according to claim 1, characterized in that: A glass door (104) is slidably provided on the outside of the device body (1), a sealing strip (105) is fixedly provided on the upper end of the glass door (104), and a handle (106) is fixedly provided on the side of the glass door (104).

Citation Information

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