Glass panel packaging device and packaging method

Abstract

The present invention relates to a packaging device and packaging method for a glass panel, wherein the packaging device includes a lower platform, an upper platform, an upper platform moving mechanism, a fixing mechanism and a colloid pressing mechanism; the upper platform is arranged above the lower platform, and the upper surface of the lower platform and the lower surface of the upper platform are respectively provided with the fixing mechanism; the upper surface of the upper platform is connected with the upper platform moving mechanism; the colloid pressing mechanism includes a lifting unit, a pressing plate and a guide rail, the guide rail is arranged in the upper platform, the guide rail is connected with the lifting unit, the guide rail is used to drive the lifting unit to move forward and backward and left and right, the telescopic end of the lifting unit is connected with the pressing plate, and the bottom surface of the pressing plate is parallel to the lower surface of the upper platform. The above technical scheme can improve the packaging effect of the glass panel and give the display device greater performance advantages.

Description

Technical Field

[0001] The present invention relates to the field of OLED packaging, and in particular to a packaging device and a packaging method for a glass panel. Background Art

[0002] Because display devices (such as OLED devices or LCD devices) are particularly sensitive to water vapor and oxygen, they are easily affected and fail, resulting in a short device life, so they need to be encapsulated. There are many existing encapsulation methods, such as UV encapsulation, glass glue encapsulation or thin film encapsulation. For UV encapsulation or glass glue encapsulation, the process is mature and the encapsulation effect is good, and it is still a more mainstream encapsulation method.

[0003] Please refer to the application document with application number CN201610064236.0.

[0004] When the coated UV glue or glass glue is aligned and pressed before curing, due to the uneven force at individual points, the UV glue or glass glue at individual positions will be pressed unevenly, and the uneven UV glue or glass glue will become an uneven colloid coating area. The uneven colloid coating area will lead to poor packaging effect, and OLED devices will easily enter water vapor in the later stage, reducing life and affecting yield.

[0005] The process steps of UV glue packaging include: S1: pre-treatment of the cover glass and the back glass, including water vapor cleaning, plasma cleaning, baking, etc., to remove impurities such as pollutants on the surface; S2: filling liquid or solid drying material on the cover glass; S3: dripping or printing UV glue on the cover glass, the structure is as follows Figure 1 As shown, OLED organic materials are evaporated or inkjet printed on the back glass at the same time; S4: the cover glass and the back glass are aligned and pressed together, and the adhesive UV glue is pressed and spread out; S5: the cover glass and the back glass are ultraviolet-cured and thermally cured (if necessary) to completely cure the UV glue; S6: the cover glass and the back glass are cut into multiple small plates.

[0006] The process steps of glass glue packaging include: S1: pre-treatment of cover glass and back glass, including water vapor cleaning, plasma cleaning, baking, etc., to remove surface pollutants and other impurity particles; S2: screen printing glass glue on the cover glass by screen printing, the structure is as follows Figure 2As shown, OLED organic materials are evaporated or inkjet printed on the back glass at the same time; S3: the cover glass printed with glass glue is placed in a pre-sintering furnace for pre-sintering to preliminarily dry the water vapor in the glass glue; S4: UV glue is coated on the outer frame of the pre-sintered cover glass to further enhance the sealing and to form a good support between the cover glass and the back glass; S5: the cover glass and the back glass are aligned and pressed together, and the glue-like UV glue is pressed and spread out; S6: the plywood is ultraviolet-cured and heat-cured (if necessary) to completely cure the UV glue; S7: the glass glue on the plywood is laser-sintered to make it well sealed; S8: the plywood of the cover glass and the back glass is cut to form the final multiple small boards. Summary of the invention

[0007] Therefore, it is necessary to provide a packaging device and a packaging method for a glass panel to solve the problem of unevenness of UV glue or glass glue during lamination.

[0008] To achieve the above-mentioned purpose, the present embodiment provides a glass panel packaging device, including a lower platform, an upper platform, an upper platform moving mechanism, a fixing mechanism and a colloid pressing mechanism;

[0009] The upper platform is arranged above the lower platform, and the upper surface of the lower platform and the lower surface of the upper platform are respectively provided with the fixing mechanism, the fixing mechanism on the upper surface of the lower platform is used to fix the cover glass, and the fixing mechanism on the lower surface of the upper platform is used to fix the back glass;

[0010] The upper surface of the upper platform is connected with the upper platform moving mechanism, and the upper platform moving mechanism is used to control the rotation, ascent and descent of the upper platform;

[0011] The colloid pressing mechanism includes a lifting unit, a pressure plate and a guide rail, wherein the guide rail is arranged in the upper platform and connected to the lifting unit. The guide rail is used to drive the lifting unit to move forward and backward and left and right. The telescopic end of the lifting unit is connected to the pressure plate, and the bottom surface of the pressure plate is parallel to the lower surface of the upper platform.

[0012] Further, the lifting unit includes a first motor and a first lead screw;

[0013] The first motor is connected to the guide rail, the first motor is connected to the first lead screw, the first lead screw is also connected to the pressure plate, and the first motor is used to drive the telescopic end of the first lead screw to rise or fall.

[0014] Furthermore, there are multiple colloid pressing mechanisms, and the multiple colloid pressing mechanisms include multiple lifting units and multiple pressing plates;

[0015] A plurality of the lifting units are connected to the guide rail, and one lifting unit is connected to one pressing plate.

[0016] Furthermore, the guide rails in the plurality of colloid pressing mechanisms are arranged in a circle in sequence, and a lifting unit and a pressing plate are respectively arranged on each guide rail.

[0017] Further, the upper platform moving mechanism includes a second motor and a second lead screw;

[0018] The second motor is connected to the second lead screw, and the second motor is used to drive the telescopic end of the second lead screw to rise or fall, and the telescopic end of the second lead screw is connected to the upper platform.

[0019] Further, a laser scanner is included;

[0020] The laser scanner is arranged on the upper platform, and is used for detecting the colloid width in the colloid coating area.

[0021] Furthermore, the laser scanner is arranged at the pressure plate in the upper platform.

[0022] Further, the fixing mechanism includes air holes and an adsorption device;

[0023] There are multiple air holes, and the multiple air holes are evenly arranged on the lower platform and the upper platform. The adsorption device is connected to the air holes, and the adsorption device is used to generate negative pressure so that the air holes adsorb the cover glass or the back glass.

[0024] This embodiment further provides a glass panel packaging method, which is applied to a glass panel packaging device described in the above embodiment. The glass panel packaging device further includes a control system, the control system is connected to the laser scanner and the lifting unit, and the driving method performs the following steps:

[0025] The control system determines whether the width of the colloid between the cover glass and the back glass is less than the preset width through the laser scanner. If so, the control system controls the lifting unit to move to the colloid where the width is less than the preset width, controls the lifting unit to drive the pressing plate downward to press the colloid so that the width of the colloid reaches the preset width, and controls the lifting unit to lift the pressing plate upward;

[0026] The above steps are repeated until the laser scanner detects that the width of the colloid between the cover glass and the back glass reaches a preset width, and then the driving of the lifting unit is stopped.

[0027] Different from the prior art, the above technical solution designs a colloid pressing mechanism. The lifting unit and the pressing plate in the colloid pressing mechanism can move along the guide rail to the place where the UV glue (or glass glue) is uneven after the initial pressing. The lifting unit drives the pressing plate to perform a second pressing of the UV glue (or glass glue) below, so that the UV glue (or glass glue) is evenly spread and reaches (or is closer to) the predetermined width. At the same time, the pressure applied by the pressing plate and the lifting unit for the secondary pressing is relatively small, so it will not cause damage to the back panel, and there is no possibility of crushing the back panel and causing it to break. It can improve the packaging effect of the display device, and also help to improve the product yield, giving the display device a greater performance advantage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A schematic cross-sectional structure diagram of a UV adhesive disposed between the back glass and the cover glass as background technology;

[0029] Figure 2 A schematic cross-sectional structure diagram of a glass adhesive disposed between the back glass and the cover glass as background technology;

[0030] Figure 3 This is a top view of the structure of the cover glass before lamination in this embodiment;

[0031] Figure 4 It is a structural side view of the colloid pressing mechanism described in this embodiment;

[0032] Figure 5 This is a structural side view of the packaging device of the glass panel of this embodiment;

[0033] Figure 6 is a schematic diagram of the cross-sectional structure of the non-uniform colloid coating area described in this embodiment;

[0034] Figure 7 This is a schematic diagram of the cross-sectional structure of the pressing plate with a rectangular cross section described in this embodiment;

[0035] Figure 8 is a schematic diagram of the cross-sectional structure of the pressing plate with an elliptical cross section described in this embodiment;

[0036] Fig. 9 This is a schematic diagram of the cross-sectional structure of the pressure plate with a hexagonal cross section described in this embodiment.

[0037] Description of reference numerals:

[0038] 1. Go up to the platform;

[0039] 11. Upper platform moving mechanism;

[0040] 111. Second motor;

[0041] 112. A second lead screw;

[0042] 12. Colloid pressing mechanism;

[0043] 121. First motor;

[0044] 122. A first lead screw;

[0045] 123, press plate;

[0046] 2. Lower the platform;

[0047] 21. Lower platform lifting mechanism;

[0048] 3. Colloid coating area;

[0049] 31. Outer frame colloid coating area;

[0050] 32. Inner frame colloid coating area;

[0051] 33. Uneven colloid coating area;

[0052] 4. Cover glass;

[0053] 5. Back panel glass;

[0054] 6. Display area. DETAILED DESCRIPTION

[0055] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0056] See also Figures 1 to 9 The present embodiment provides a glass panel packaging device, comprising a lower platform 2, an upper platform 1, an upper platform moving mechanism 11, a fixing mechanism and a colloid pressing mechanism 12. The upper platform 1 is located above the lower platform 2. The upper surface of the lower platform 2 is provided with a fixing mechanism, and the fixing mechanism on the upper surface of the lower platform 2 is used to fix the cover glass 4. The lower surface of the upper platform 1 is also provided with the fixing mechanism, and the fixing mechanism on the lower surface of the upper platform 1 is used to fix the back glass 5. Generally, the size of the back glass 5 is the same as that of the cover glass 4. The upper surface of the upper platform 1 is provided with the upper platform moving mechanism 11, and the upper platform moving mechanism 11 is used to control the rotation, rise and fall of the upper platform, so that the back glass fixed on the upper platform 1 and the cover glass fixed on the lower platform 2 are aligned and pressed. The colloid pressing mechanism 12 includes a lifting unit, a pressing plate 123 and a guide rail. The guide rail is arranged in the upper platform 1, and the guide rail is connected to the lifting unit, and the guide rail is used to drive the lifting unit to move forward and backward and left and right. The telescopic end of the lifting unit is connected to the pressing plate 123 , the bottom surface of the pressing plate 123 is parallel to the lower surface of the upper platform, and the surface of the pressing plate 123 is flat, and can evenly press down the UV glue or glass glue.

[0057] It should be noted that the colloid coating area 3 is UV glue or glass glue coated on the cover glass 4. The colloid coating area 3 is located outside the display area 6 (Active Area, abbreviated as AA area) of the back glass 5 (or cover glass 4). The UV glue or glass glue on the colloid coating area surrounds the AA area and forms a good seal for the AA area. The structure is as follows: Figure 3 shown.

[0058] Existing UV glue (or glass glue) often has uneven problems after lamination. Figure 6 As shown. Uneven colloid will affect the packaging effect of OLED devices and reduce the service life of OLED devices. The above technical solution designs a colloid pressing mechanism. The lifting unit and the pressing plate in the colloid pressing mechanism can move along the guide rail to the UV glue (or glass glue) that is uneven after the initial pressing. The lifting unit drives the pressing plate to perform a secondary pressing of the UV glue (or glass glue) below, so that the UV glue (or glass glue) is evenly spread and reaches (or is closer to) the predetermined width. At the same time, the pressure applied by the pressing plate and the lifting unit for the secondary pressing is small, so it will not cause damage to the back panel, and there is no possibility of crushing the back panel and causing it to break. It can improve the packaging effect of the display device, and also help to improve the product yield, giving the display device a greater performance advantage.

[0059] It should be noted that a control system is also included, and the control system is electrically connected to the motor and the lifting unit of the adhesive pressing mechanism 12. The control system can control the lifting unit to move in the guide rail, and lower the pressing plate 123 through the lifting unit to press down the uneven UV adhesive or glass adhesive.

[0060] It should be noted that UV glue is also called shadowless glue, photosensitive glue, and ultraviolet light curing glue. UV glue is a type of adhesive that can only be cured by ultraviolet light and is commonly used in the packaging process of display devices (OLED devices or LCD devices). Glass glue (frit glue) is also a type of adhesive used in the packaging process of OLED devices.

[0061] To illustrate, see Figure 3 and Figure 4 In the glass glue packaging method, when the UV glue is applied on the outer frame colloid coating area 31, its width is 2mm (millimeter) to 5mm (millimeter); when the glass glue is applied on the inner frame colloid coating area 32, its width is 0.2mm to 2.5mm. When this packaging method is adopted, the glass glue in the inner frame colloid coating area 32 mainly plays a packaging effect, while the UV glue in the outer frame colloid coating area 31 plays an auxiliary packaging effect. The more important role of the outer frame UV glue is to support the upper cover plate and the lower back plate.

[0062] To illustrate, see Figure 3 and Figure 4 In the UV glue packaging method, when the inner frame colloid coating area 32 is UV glue, its width is 0.3mm to 2.5mm; the outer frame colloid coating area 31 is UV glue. When this packaging method is adopted, the UV glue on the inner frame colloid coating area 32 mainly plays a packaging effect, and the UV glue can also be applied to the outer frame colloid coating area 31 or not.

[0063] It should be noted that the guide rail may be a left-right, front-back movable guide rail similar to that in a 3D printer.

[0064] In this embodiment, the lifting unit includes a first motor fixing seat, a first motor 121 and a first lead screw 122, and the structure is as follows: Figure 4 and Figure 5 As shown. The first motor fixing seat can be slidably mounted on the guide rail, and the first motor 121 is arranged on the first motor fixing seat. A pulley is arranged at the connection between the first motor seat and the guide rail, so that the first motor 121 can reciprocate on the guide rail through the pulley. The rotating shaft of the first motor 121 is connected to one end of the first lead screw 122. The first motor 121 is such as a stepping motor. The first motor is used to drive the telescopic end of the first lead screw to rise or fall, and the telescopic end of the first lead screw 122 is connected to the pressing plate 123. Preferably, the first lead screw 122 is arranged perpendicular to the lower surface of the upper platform.

[0065] For example, the first lead screw 122 includes a first nut and a first movable rod, the first nut is sleeved on the thread of the first lead screw, and the first nut is used to move on the first lead screw when the first lead screw rotates, and the other end of the first lead screw can be connected to the first motor fixing seat. The first nut is movably connected to the first movable rod, and the two ends of the first movable rod are fixed on the first motor seat. The first movable rod is parallel to the first lead screw, and the first movable rod is used to limit the rotation of the first nut. The first nut is connected to the pressure plate through a connecting piece, and the pressure plate is below the first lead screw. At this time, the first lead screw will not move up and down, but the first nut moves up and down.

[0066] Or in some embodiments, the first lead screw does not need to be provided with a first nut, and the first lead screw will rotate and rise or fall when the shaft of the motor rotates, and the bottom of the first lead screw is connected to the pressing plate. The motor has a certain space to accommodate the upward movement of the first lead screw. The first lead screw will also drive the pressing plate to rise or fall during the process of rising or falling.

[0067] In some embodiments, the lifting unit is a telescopic rod driven by a cylinder or a hydraulic cylinder, and the lifting unit also slides along the guide rail. Preferably, the telescopic rod is vertically arranged. The telescopic end of the telescopic rod performs reciprocating linear motion in the cylinder body. The telescopic end of the telescopic rod is connected to the pressing plate, and the telescopic end of the telescopic rod moves up and down to drive the pressing plate.

[0068] In this way, the lifting unit can control the pressing plate 123 to rise and fall, thereby applying pressure to the back glass 5 above the uneven colloid coating area 33, so that the uneven UV glue or glass glue there is spread out again.

[0069] In this embodiment, in order to make the shape of the pressing mechanism correspond to the shape of the colloid coating area 3 between the cover glass 4 and the back glass 5, a plurality of the pressing mechanisms are provided. The plurality of colloid pressing mechanisms 12 include a plurality of lifting units and a plurality of pressing plates 123. The plurality of lifting units are connected to one guide rail, and one lifting unit is connected to one pressing plate 123. The structure is as follows: Figure 4 and Figure 5 shown.

[0070] Preferably, the shapes of the plurality of guide rails are used to correspond to the shape of the colloid coating area 3 between the cover glass 4 and the back glass 5, that is, the shape of the guide rail is the same as the standard shape (or preset shape) of the colloid coating area 3 between the back glass 5 and the cover glass 4, so that the pressing plate 123 in the colloid pressing mechanism 12 can press the colloid coating area 3. Generally, the shape of the guide rail can be a long strip, or a closed rectangle or a circle, such as: if the shape of the colloid coating area 3 is a rectangle, then the shape of the guide rail is also a rectangle or four long strips (used to be spliced ​​into a rectangle); if the shape of the colloid coating area 3 is a circle, then the shape of the guide rail is also a circle or a plurality of arcs (used to be spliced ​​into a circle).

[0071] In this embodiment, the colloid coating area is divided into an outer frame colloid coating area 31 and an inner frame colloid coating area 32, and the outer frame colloid coating area 31 surrounds the outer side of the inner frame colloid coating area 32. Figure 4 and Figure 5 As shown. Therefore, the colloid pressing mechanism 12 is designed to be multiple, and the guide rails in each of the colloid pressing mechanisms 12 are arranged in a circle in sequence. Preferably, there are two pressing mechanisms, and the shape of the guide rail in the first colloid pressing mechanism 12 is the same as the shape of the outer frame colloid coating area 31. The shape of the guide rail in the second colloid pressing mechanism 12 is the same as the shape of the inner frame colloid coating area 32. In some embodiments, if the colloid coating area is an area with three, four or even more colloid coatings, then the guide rails in the multiple colloid pressing mechanisms 12 are correspondingly adapted to the multiple colloid coating areas (one-to-one).

[0072] In this embodiment, the upper platform moving mechanism 11 plays a role in controlling the movement of the upper platform. For example, the upper platform moving mechanism 11 controls the upper platform to move up, down, left, right, forward, backward, and rotate, so as to fine-tune the position of the upper platform and the lower platform during pressing. Figure 4 and Figure 5 As shown. The upper platform moving mechanism 11 includes a second motor fixing seat, a second lead screw 112 and a second motor 111. The second motor 111 is arranged on the second motor fixing seat, and the second motor 111 is such as a stepping motor. The output shaft of the second motor 111 is connected to the second lead screw 112, and the second lead screw 112 can rotate when the output shaft of the second motor rotates. The second motor is used to drive the telescopic end of the second lead screw to rise or fall, and the telescopic end of the second lead screw is connected to the upper platform. The top of the upper platform has an opening for accommodating the second motor fixing seat.

[0073] For example, the second lead screw 112 includes a second nut (i.e., a telescopic end) and a second movable rod. The second nut is sleeved on the thread of the second lead screw, and the second nut is used to move on the first lead screw when the first lead screw rotates. The second nut is movably connected to the second movable rod, and both ends of the second movable rod are fixed to the second motor seat. The second movable rod is parallel to the second lead screw, and the second movable rod is used to limit the rotation of the second nut. The second nut is connected to the pressing platform.

[0074] Alternatively, the second lead screw does not need to be provided with a second nut, the second lead screw will rotate and rise or fall when the shaft of the motor rotates, the bottom of the second lead screw is connected to the pressure plate, and the second motor has a certain space to accommodate the second lead screw to move upward. The second lead screw will also drive the upper platform to rise or fall during the process of rising or falling.

[0075] At the same time, the second motor fixing seat is fixed above the upper platform through a mechanical arm, and the mechanical arm can drive the second motor fixing seat to move up, down, left, right, forward, backward and rotate.

[0076] Or in some embodiments, the second motor fixing seat is connected to a rotating platform via a lifting mechanism, the rotating platform drives the second motor fixing seat to rotate, and the lifting mechanism drives the second motor fixing seat to rise or fall.

[0077] In this embodiment, in order to detect the width of the UV glue or glass glue on the colloid coating area, a laser scanner is also included. The laser scanner is arranged at the pressing plate 123, such as on the bottom surface, side wall or top of the pressing plate 123. The laser scanner can detect the width of the UV glue (or glass glue) between the back plate glass 5 and the cover plate glass 4, and judge whether the width of the UV glue (or glass glue) at the detection location is smaller than the width of the colloid at the uniform location next to it. For example, when the error between the glue width of the colloid coating area at the detection location and the glue width of the colloid coating area at the uniform location is in a certain proportion (such as 5%, 6%, 7%), the error refers to the difference between the glue width of the colloid coating area at the detection location and the glue width of the uniform colloid coating area, which accounts for the proportion of the glue width of the uniform colloid coating area. The laser scanner is electrically connected to the control system, and the laser scanner feeds back the signal to the pressing plate 123 and the upper platform through the control system, respectively, notifying the upper platform to stop pressing down, and letting the lifting unit control the pressing plate 123 to press down the back plate glass 5 above the uneven colloid coating area 33. The pressing plate 123 applies pressure to the position of the uneven colloid coating area 33 , and the displacement presented by the pressure of the secondary pressing is very small, so it will not cause damage to the back plate glass 5 , and there is no possibility of the back plate glass 5 breaking.

[0078] In this embodiment, a lower platform lifting mechanism 21 is further included, and the lower platform lifting mechanism 21 is connected to the lower platform, and the lower platform lifting mechanism 21 is used to make the lower platform rise and fall. Similarly, the lower platform lifting mechanism 21 is a telescopic rod structure driven by a cylinder or a hydraulic cylinder, similar to the lifting unit in the upper platform moving mechanism 11.

[0079] In this embodiment, because the back glass 5 and the cover glass 4 are respectively arranged on the upper platform and the lower platform, a fixing mechanism is designed to fix the back glass 5 and the cover glass 4. The fixing mechanism includes air holes, and the lower surface of the upper platform or the upper surface of the lower platform can be a metal plate with air holes. The thickness of the metal plate can be as long as the metal plate can adsorb the cover glass or the back glass. The metal plate has the characteristic of deformation. When the lifting unit drives the pressure plate to press the metal plate, the metal plate can be deformed to adsorb the cover glass or the back glass. A little gas is introduced into the part between the metal plate and the glass to change the pressure between the two from the original negative pressure to positive pressure, and then the cover glass or the back glass will fall off.

[0080] In order to increase the adsorption force of the fixing mechanism, the fixing mechanism further includes an adsorption device, which is connected to the air hole and is used to generate negative pressure so that the air hole adsorbs the cover glass or the back glass. The adsorption device is such as an exhauster or a vacuum pump, which provides a strong suction force to adsorb the cover glass 4 or the back glass 5 so that the cover glass 4 or the back glass 5 does not fall off.

[0081] Preferably, there are a plurality of air holes, and the plurality of air holes are evenly arranged on the lower platform and / or the upper platform. When the number of air holes increases, the adsorption force of the fixing mechanism will be improved to a certain extent.

[0082] In this embodiment, the cross-section of the pressing plate 123 is one or more of a rectangular, circular, elliptical, triangular or polygonal shape. Preferably, the cross-section of the pressing plate 123 is a rectangular shape. The rectangular structure has a large area utilization rate and can still cover the uneven colloid coating area 33 while being compact. Figure 7 As shown. Figure 8 In the embodiment, the cross section of the pressing plate 123 is an ellipse. Fig. 9 In the embodiment, the cross section of the pressing plate 123 is hexagonal.

[0083] In this embodiment, the width of the pressing plate 123 is greater than the colloid width of the outer frame colloid coating area or the inner frame colloid coating area, so that the pressing plate 123 can completely cover the colloid coating area and perform fine-tuning. Generally, the central axis of the pressing plate 123 coincides with the central axis of the colloid coating area below. Because the widths of the outer frame colloid coating area 31 and the inner frame colloid coating area 32 are different, the sizes of the pressing plates 123 at the two locations also have certain differences. In the outer frame colloid coating area 31, the width h1 of the pressing plate 123 is 5mm to 10mm, and the width h1 of the pressing plate 123 is greater than the width H1 of the outer frame colloid coating area 31, and the length of the pressing plate 123 is 10mm to 30mm. In the inner frame colloid coating area 32 , the width h2 of the pressing plate 123 is 1 mm to 5 mm, and the width h2 of the pressing plate 123 is greater than the width H2 of the outer frame colloid coating area 31 . The length of the pressing plate 123 is 10 to 30 mm.

[0084] This embodiment further provides a glass panel packaging method, which is applied to a glass panel packaging device as described in this embodiment, wherein the control system is connected to the laser scanner, the lifting unit, the upper platform moving mechanism and the fixing mechanism, and the driving method performs the following steps:

[0085] The laser scanner determines whether the width of the colloid between the cover glass and the back glass is less than the preset width. If so, the control system controls the lifting unit to move to the colloid where the width is less than the preset width. The control system controls the lifting unit to drive the pressing plate downward to press the colloid where the width is less than the preset value, so that the width of the pressing part on the colloid reaches the preset width, and controls the lifting unit to lift the pressing plate upward.

[0086] The above steps are repeated until the laser scanner detects that the width of the colloid between the cover glass and the back glass reaches a preset width, and then the driving of the lifting unit is stopped.

[0087] This embodiment further provides a packaging process for a display panel, which is applied to a packaging device for a glass panel described in this embodiment, and includes the following steps:

[0088] S1: Clean the cover glass and the back glass, including water vapor cleaning, plasma cleaning, baking, etc., to remove pollutants on the surface of the cover glass and the back glass.

[0089] S2: Fill the cover glass with liquid or solid drying material, print UV glue or glass glue on the cover glass, and evaporate or inkjet print the evaporation material (OLED organic material) on the back glass.

[0090] S3: If glass glue is printed on the cover glass, put the cover glass printed with glass glue into the pre-sintering furnace for pre-sintering to initially dry the water vapor in the glass glue, and then apply UV glue on the outer frame of the pre-sintered cover glass.

[0091] S4: The upper platform moving mechanism controls the upper platform to move downward, and the cover glass and the back glass are aligned and pressed together. The UV glue (or glass glue) is spread out after pressing together, i.e., the initial pressing.

[0092] S5: The laser scanner measures the width of the UV glue after the initial lamination in real time. When uneven lamination is found, the lifting unit in the upper platform moving mechanism is controlled to this position. The lifting unit controls the small pressing plate to descend and perform secondary lamination on this part of the glue (i.e., glass panel packaging method), and simultaneously compares the UV glue width at other uniform locations. When the error is less than 5%, the pressing is stopped to complete the lamination process.

[0093] S6: UV-curing the cover glass and the back glass to completely cure the UV glue, which is a UV packaging method; or laser sintering the glass glue on the cover glass and the back glass to make it well sealed, which is a glass glue packaging method.

[0094] S7: Cutting the composite sheet of the cover glass and the back glass into a plurality of final small sheets.

[0095] It should be noted that, although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process transformations made using the contents of the present specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A glass panel packaging device, characterized in that: It includes a lower platform, an upper platform, an upper platform moving mechanism, a fixing mechanism and a colloid pressing mechanism; The upper platform is arranged above the lower platform, and the upper surface of the lower platform and the lower surface of the upper platform are respectively provided with the fixing mechanism, the fixing mechanism on the upper surface of the lower platform is used to fix the cover glass, and the fixing mechanism on the lower surface of the upper platform is used to fix the back glass; The upper surface of the upper platform is connected with the upper platform moving mechanism, and the upper platform moving mechanism is used to control the rotation, ascent and descent of the upper platform; The colloid pressing mechanism includes a lifting unit, a pressure plate and a guide rail, wherein the guide rail is arranged in the upper platform and connected to the lifting unit. The guide rail is used to drive the lifting unit to move forward and backward and left and right. The telescopic end of the lifting unit is connected to the pressure plate, and the bottom surface of the pressure plate is parallel to the lower surface of the upper platform.

2. The glass panel packaging device according to claim 1, characterized in that: The lifting unit includes a first motor and a first lead screw; The first motor is connected to the guide rail, the first motor is connected to the first lead screw, the first lead screw is also connected to the pressure plate, and the first motor is used to drive the telescopic end of the first lead screw to rise or fall.

3. The glass panel packaging device according to claim 1, characterized in that: There are multiple colloid pressing mechanisms, and the multiple colloid pressing mechanisms include multiple lifting units and multiple pressing plates; A plurality of the lifting units are connected to the guide rail, and one lifting unit is connected to one pressing plate.

4. The glass panel packaging device according to claim 3, characterized in that: The guide rails in the plurality of colloid pressing mechanisms are arranged in a circle in sequence, and each guide rail is provided with a lifting unit and a pressing plate.

5. The glass panel packaging device according to claim 1, characterized in that: The upper platform moving mechanism includes a second motor and a second lead screw; The second motor is connected to the second lead screw, and the second motor is used to drive the telescopic end of the second lead screw to rise or fall, and the telescopic end of the second lead screw is connected to the upper platform.

6. The glass panel packaging device according to claim 1, characterized in that: Also included is a laser scanner; The laser scanner is arranged on the upper platform, and is used for detecting the colloid width in the colloid coating area.

7. The glass panel packaging device according to claim 6, characterized in that: The laser scanner is arranged at the pressure plate in the upper platform.

8. The glass panel packaging device according to claim 1, characterized in that: The fixing mechanism includes air holes and an adsorption device; There are multiple air holes, and the multiple air holes are evenly arranged on the lower platform and the upper platform. The adsorption device is connected to the air holes, and the adsorption device is used to generate negative pressure so that the air holes adsorb the cover glass or the back glass.

9. A glass panel packaging method, characterized in that: The packaging device for a glass panel as claimed in claim 6 further comprises a control system, wherein the control system is connected to the laser scanner and the lifting unit, and the method performs the following steps: The control system determines whether the width of the colloid between the cover glass and the back glass is less than the preset width through the laser scanner. If so, the control system controls the lifting unit to move to the colloid where the width is less than the preset width, controls the lifting unit to drive the pressing plate downward to press the colloid so that the width of the colloid reaches the preset width, and controls the lifting unit to lift the pressing plate upward; The above steps are repeated until the laser scanner detects that the width of the colloid between the cover glass and the back glass reaches a preset width, and then the driving of the lifting unit is stopped.

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