Gluing equipment, display panel and display equipment

Abstract

The utility model discloses a gluing device, a display panel and a display device. The gluing device comprises a support; the object placing table is connected with the bracket and is used for placing a display panel to be packaged; the glue valve is located on the side, where the display panel to be packaged is placed, of the storage table and used for coating the display panel to be packaged with packaging glue; the moving structure is respectively connected with the bracket and the glue valve and is used for controlling the glue valve to move relative to the object placing table; the rotating structure is connected with the glue valve and used for controlling the glue valve to rotate by taking a first direction as a rotating shaft, and the first direction is the direction of relative movement of the glue valve and the object placing table. Therefore, the rotating structure is arranged in the gluing equipment, so that the glue valve can rotate, the orientation of the glue outlet of the glue valve is adjusted through rotation, packaging glue with a better structure is coated on the display panel, the coating effect of the packaging glue is improved, and the reliability of the display panel is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display technical field especially a kind of gluing equipment, display panel and display device. BACKGROUND

[0002] In display panel, color film substrate is attached on TFT substrate, in order to improve the stress bearing of color film substrate and TFT substrate fault position, improve the reliability of display panel, color film substrate and TFT substrate are encapsulated by encapsulation glue, but in the existing display panel, the coating effect of encapsulation glue is not ideal, which leads to the attachment effect between color film substrate and TFT substrate is poor, and the reliability of display panel is low.

[0003] Therefore, how to improve the coating effect of encapsulation glue becomes a technical problem to be solved in the field. INVENTION CONTENTS

[0004] The utility model embodiment provides a kind of gluing equipment, display panel and display device to improve the coating effect of encapsulation glue.

[0005] Firstly, the utility model embodiment provides a kind of gluing equipment for making display panel, comprising:

[0006] support frame;

[0007] support frame;

[0008] glue valve, located in the side of the display panel to be encapsulated placed by the support frame, for the display panel to be encapsulated Coating encapsulation glue;

[0009] moving structure, respectively with the support frame and the glue valve connection, for controlling glue valve relative to the support frame moves;

[0010] rotary structure, with the glue valve connection, for controlling the glue valve with first direction as rotation axis rotates, the first direction is the direction of relative motion of the glue valve and the support frame.

[0011] Secondly, the utility model embodiment provides a kind of display panel, comprising: TFT substrate, color film substrate attached to the light-out surface of the TFT substrate;

[0012] The light-out surface of the TFT substrate includes: the first area of covering the color film substrate and the second area not being covered by the color film substrate, the color film substrate includes the encapsulation face towards the second area, the encapsulation face is connected with the second area by encapsulation glue, and the encapsulation glue completely covers the encapsulation face.

[0013] In a third aspect, the utility model discloses a display device, including the display panel of the second aspect introduction as above.

[0014] The utility model has the advantages that:

[0015] The utility model discloses a kind of gluing equipment, display panel and display device provided by the embodiment of the utility model, comprising: support;Goods table, connect with support, for placing display panel to be packaged;Glue valve, located the side of goods table placing display panel to be packaged, for the display panel to be packaged Coating encapsulation glue;Moving structure is connected with support and glue valve respectively, for controlling glue valve moves relative to goods table;Rotary structure, connect with glue valve, for controlling glue valve rotates with first direction as rotation axis, first direction is the direction of relative motion of glue valve and goods table.Such, by being provided with rotary structure in gluing equipment, glue valve can rotate, and then by rotating adjustment glue valve's glue outlet orientation, coating gets more optimal structure encapsulation glue on display panel, improve the coating effect of encapsulation glue, improve the reliability of display panel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of gluing equipment provided in the embodiment of the utility model;

[0017] Figure 2 It is a structure schematic view of rotary structure and glue valve provided in the embodiment of the utility model;

[0018] Figure 3 It is another structure schematic view of rotary structure and glue valve provided in the embodiment of the utility model;

[0019] Figure 4 It is structure schematic view after glue valve rotation provided in the embodiment of the utility model;

[0020] Figure 5 It is microscope picture of display panel after packaging using prior art gluing equipment;

[0021] Figure 6 It is scanning electron microscope picture of display panel after packaging using prior art gluing equipment;

[0022] Figure 7 It is microscope picture of display panel after packaging using the gluing equipment provided in the embodiment of the utility model;

[0023] Figure 8 It is scanning electron microscope picture of display panel after packaging using the gluing equipment provided in the embodiment of the utility model;

[0024] Figure 9 It is weber distribution diagram of display panel pulling test provided in the embodiment of the utility model;

[0025] Figure 10 A box plot of the display panel pull test is provided in the embodiments of the present application.

[0026] Figure 11 A structural schematic diagram of the display panel is provided in the embodiments of the present application.

[0027] Figure 12 A structural schematic diagram of the display device is provided in the embodiments of the present application. DETAILED DESCRIPTION

[0028] The specific embodiments of the gluing equipment, the display panel and the display device provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0029] The embodiments of the present application provide a gluing equipment for manufacturing a display panel, as shown in Figure 1 The gluing equipment comprises:

[0030] a support 100;

[0031] a placement table 200 connected with the support 100, used for placing a display panel to be packaged;

[0032] a glue valve 300 located on one side of the placement table where the display panel to be packaged is placed, used for coating packaging glue to the display panel to be packaged;

[0033] a moving structure 400 connected with the support 100 and the glue valve 300 respectively, used for controlling the glue valve 300 to move relative to the placement table 200;

[0034] a rotating structure 500 connected with the glue valve 300, used for controlling the glue valve 300 to rotate with a first direction as a rotating axis, and the first direction is a relative movement direction of the glue valve 300 and the placement table 200.

[0035] In this way, by arranging the rotating structure in the gluing equipment, the glue valve can be rotated, and then the glue outlet of the glue valve is adjusted to face in a direction, so that the packaging glue with a more optimal structure is coated on the display panel, the coating effect of the packaging glue is improved, and the reliability of the display panel is improved.

[0036] In a common display panel, the position requiring encapsulation glue coating is generally a strip-shaped area, so the moving structure can be a linear motor. For other shapes of positions requiring encapsulation glue coating, such as a circular arc, the area requiring encapsulation glue coating is a curved area. In this case, the moving structure needs to have the ability to control the glue valve to move along a curve relative to the placement table. In actual applications, the moving structure can be selected according to actual needs, and is not specifically limited here.

[0037] In addition, the rotating structure controls the glue valve to rotate. When the rotation axis of the glue valve is in the first direction, the specific position of the rotation axis of the glue valve can be set according to actual needs, such as being set at the center or edge of the glue valve, or increasing an additional structure to make the rotation axis outside the glue valve, and is not specifically limited here.

[0038] Optionally, as shown in Figure 2 , a structure diagram of the rotating structure and the glue valve 300 in the glue coating equipment is provided. Figure 2 , in which (a) is a front view, and (b) is a side view. The rotating structure includes: Figure 2 Figure 2 A clamping plate 501 is connected to the moving structure (not shown) and is located on both sides of the glue valve 300. The arrangement direction of the clamping plate 501 and the glue valve 300 is parallel to the first direction F1.

[0039] A fixed connecting piece 502 is fixed to the clamping plate 501 and is connected to the glue valve 300. Figure 2 A guide rail 503 is located on the clamping plate 501 and extends in a circular arc. The center of the circular arc is the fixed connecting piece 502.

[0040] A moving connecting piece 504 is located in the guide rail 503 and is connected to the glue valve 300.

[0041] The position of the fixed connecting piece 502 is the position of the rotation axis of the glue valve 300. Therefore, the position of the fixed connecting piece 502 is not limited to the center of the clamping plate 501, but can also be any position of the clamping plate 501. The distance between the guide rail 503 and the fixed connecting piece 502 can be set according to actual needs. For example, the distance between the guide rail 503 and the fixed connecting piece 502 is set to be large, so as to reduce the force required when rotating the glue valve 300. Alternatively, the distance between the guide rail 503 and the fixed connecting piece 502 is set to be small, so as to reduce the size of the clamping plate and reduce costs. The length of the guide rail can be set according to the required rotation angle, or can be set to be annular to adapt to various rotation angles, and is not specifically limited here.

[0042]

[0043]

[0044] ​​​In this way, by controlling the movement of the moving connector within the guide rail, the glue valve can be driven to rotate around the fixed connector, thereby adjusting the orientation of the glue valve outlet, improving the coating effect of the encapsulating glue, and enhancing the reliability of the display panel.

[0045] Optionally, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the adhesive valve 300 and another type of rotating structure. Figure 3 (a) is the front view. Figure 3 (b) is a side view; the rotating structure includes:

[0046] Clamp 501, and the moving structure ( Figure 3 (Not shown in the image) is connected and located on both sides of the glue valve 300, and the arrangement direction of the clamping plate 501 and the glue valve 300 is parallel to the first direction F1; the clamping plate 501 on both sides of the glue valve 300 is provided with through holes K, and the axes of each through hole K coincide and are parallel to the first direction F1.

[0047] The rotating connector 505 passes through the through hole K and is connected to the glue valve 300. It is used to rotate within the through hole K and drive the glue valve 300 to rotate.

[0048] In this way, by controlling the rotation of the rotating connector within the guide rail, the glue valve can be driven to rotate around the fixed connector, thereby adjusting the orientation of the glue valve outlet, improving the coating effect of the encapsulating glue, and enhancing the reliability of the display panel.

[0049] In addition, compared to Figure 2 The rotating structure shown, Figure 3 The rotating structure shown requires more effort to rotate. Therefore, additional structures, such as gear sets or hand cranks, can be added to control the rotation of the rotating connector, thereby reducing the difficulty of rotating the glue valve and improving the practicality of the glue application equipment.

[0050] It should be understood that when the rotating structure includes a clamping plate, the movement of the glue valve relative to the stage can be controlled by the connection between the clamping plate and the moving structure, thereby avoiding the connection between the glue valve and the moving structure from hindering the rotation of the glue valve and improving the reliability of the glue application equipment.

[0051] Of course, in addition to the two types of rotating structures mentioned above, other types of rotating structures can also be used in the glue coating equipment, so that the rotating structure can control the glue valve to rotate around the first direction as the axis of rotation. The rotating structure can adopt a form known to those skilled in the art, and no specific limitation is made here.

[0052] Optionally, such as Figure 2As shown, the glue valve 300 includes a body 301 and a glue head 302 extending from the body 301. The glue outlet of the glue valve 301 is located on the side of the glue head 302 away from the body 301. The glue head 302 is used to receive the encapsulating glue in the body 301 and apply it to the display panel to be encapsulated through the glue outlet.

[0053] Thus, by setting up the glue head, the glue valve can be prevented from contacting the display panel to be packaged when it rotates, improving the reliability of the glue coating equipment. In addition, setting up the glue head can also reduce the distance between the glue outlet and the glue-to-be-applied position inside the display panel, improving the accuracy of glue application.

[0054] Optionally, the length of the glue applicator can be, but is not limited to, 10mm. This avoids the glue applicator from touching the display panel to be encapsulated due to an excessively short glue applicator, thus improving the reliability of the glue applicator. Conversely, it avoids the glue applicator from having difficulty flowing within the glue applicator due to an excessively long glue applicator, further improving the reliability of the glue applicator.

[0055] Optionally, the distance between the dispensing nozzle in the glue applicator and the encapsulating adhesive application position can be, but is not limited to, greater than or equal to 2mm and less than or equal to 5mm. This avoids contact with the display panel due to an excessively small distance between the dispensing nozzle and the encapsulating adhesive application position, improving the reliability of the glue applicator. It also avoids instability in the encapsulating adhesive form due to an excessively large distance, improving the stability of the encapsulating adhesive application process.

[0056] Optionally, such as Figure 2 As shown, the main body 301 may include a container 3011 for containing encapsulating adhesive and a controller 3012 for controlling the flow of encapsulating adhesive. The controller 3012 is connected to the adhesive head 302 and can control the flow of encapsulating adhesive in the container 3011 to the adhesive head 302, thereby realizing the flow of encapsulating adhesive from the dispensing port of the adhesive head 302.

[0057] Optionally, such as Figure 4 As shown, Figure 4 for Figure 1 The image shows a side view of the glue valve and its rotating structure after the glue valve has been rotated a certain angle in the glue application equipment shown. The angle between the glue outlet direction C and the second direction F2 is greater than 0°. The glue outlet direction C is the orientation of the glue outlet in the glue valve, and the second direction F2 is perpendicular to the table. Figure 4 (The direction is not shown in the image).

[0058] In this way, by setting the angle between the dispensing direction of the glue valve and the second direction to be greater than 0°, a better-structured encapsulating glue can be applied to the display panel, improving the coating effect of the encapsulating glue and enhancing the reliability of the display panel.

[0059] It should be understood that when applying encapsulating adhesive to the display panel to be encapsulated, if the application is parallel to the second direction, the resulting encapsulating adhesive structure can be as follows:Figure 5 and Figure 6 as shown, Figure 5 is a microscope top view after encapsulation adhesive J is coated in parallel to the second direction, Figure 6 is a scanning electron microscope side view after encapsulation adhesive J is coated in parallel to the second direction, Figure 5 and Figure 6 The area A1 shown in the figure is an area that needs to be coated with encapsulation adhesive J, and the encapsulation adhesive J here can encapsulate the color film substrate 1 and the TFT substrate 2. However, the area A2 does not need to be coated with encapsulation adhesive J, but when coated in parallel to the second direction, encapsulation adhesive J also exists in the area A2 due to the flowability of the encapsulation adhesive J. This not only reduces the amount of encapsulation adhesive J in the area A1, resulting in a reduction in the amount of encapsulation adhesive J in the encapsulation surface of the color film substrate, reducing the encapsulation effect and the reliability of the display panel, but also affects other structures provided on the TFT substrate 2.

[0060] If the angle between the adhesive valve dispensing direction and the second direction is greater than 0°, the obtained encapsulation adhesive structure can be as shown in Figure 7 and Figure 8 as shown, Figure 7 is a microscope top view when the angle between the adhesive valve dispensing direction and the second direction is greater than 0°, Figure 8 is a scanning electron microscope side view when the angle between the adhesive valve dispensing direction and the second direction is greater than 0°, and Figure 7 and Figure 8 in the figures, encapsulation adhesive J only exists in the area A1, and the structure of the encapsulation adhesive J is more full, the side view is a triangle, which can achieve a better encapsulation effect between the color film substrate 1 and the TFT substrate 2, improve the reliability of the display panel, and will not affect other structures provided on the TFT substrate 1.

[0061] Further, the angle between the dispensing direction and the second direction is greater than or equal to 5° and less than or equal to 30°. In this way, coating the encapsulation adhesive within this angle range can further optimize the structure of the encapsulation adhesive and further improve the coating effect of the encapsulation adhesive and the reliability of the display panel.

[0062] Optionally, as shown in Figure 1 , the adhesive coating device further comprises a positioning structure 600 connected with the rotating structure. In this way, by providing the positioning structure 600, the accuracy of the encapsulation adhesive coating can be improved, and the encapsulation effect can be improved.

[0063] Optionally, the encapsulation adhesive can be but is not limited to UV adhesive. When the encapsulation adhesive is UV adhesive, as shown in Figure 1 , the adhesive coating device further comprises a curing lamp 700 connected with the positioning structure 600. In this way, the encapsulation adhesive can be cured under the action of the curing lamp 700 to achieve the encapsulation effect.

[0064] Of course, the setting mode of the curing lamp and the alignment structure is not limited to Figure 1 For example, the curing lamp and the alignment device are exchanged, or the curing lamp and the alignment device are independently arranged, and the setting mode of the two is not limited here.

[0065] Optionally, when the encapsulation adhesive is coated by the gluing device, a dotting gluing mode can be used, but is not limited to, that is, there is a glue discharging time and a touch stop time in a glue discharging period, for example, the glue discharging period is 0.8 ms to 2.0 ms, and the glue discharging time is 0.2 ms to 1.0 ms, so that the accumulation of the encapsulation adhesive can be avoided, and the encapsulation effect is improved.

[0066] In addition, when the encapsulation adhesive is coated, the pressure, temperature and gluing speed of the encapsulation adhesive need to be controlled to achieve a good encapsulation adhesive shape and improve the encapsulation effect, for example, but not limited to, the pressure is 0.2 MPa to 0.8 MPa, the temperature is 60 DEG C to 90 DEG C, and the gluing speed is 150 mm / s to 300 mm / s.

[0067] The gluing effect of the gluing device provided by the embodiment of the utility model is explained and described below in combination with specific experimental data.

[0068] As shown in Figure 9 , Figure 9 the Weibull distribution diagram when the existing technology and the application are encapsulated and then pulled, Figure 9 the circular black dot and the solid line represent the existing technology, and the square black dot and the dashed line represent the application, and from Figure 9 it can be seen that, under the confidence value of 90%, the force that can be borne by the existing technology after encapsulation is about 143 N, and the force that can be borne by the application after encapsulation is about 268 N, which is increased by 87.4%.

[0069] As shown in Figure 10 , Figure 10 the box plot when the existing technology and the application are encapsulated and then pulled, and from Figure 10 it can be seen that the mean value of the force that can be borne by the existing technology after encapsulation is 406.50 N, and the mean value of the force that can be borne by the application after encapsulation is 498.07 N, which is increased by 22.5%.

[0070] Therefore, from the experimental data in Figure 9 and Figure 10 , it can be seen that the display panel reliability after encapsulation by the gluing device in the application is improved, and the passing rate of the display panel drop test can be effectively increased.

[0071] Based on the same utility model concept, the embodiment of the utility model further provides a display panel, as shown in Figure 11As shown, the system includes: a TFT substrate 2, and a color filter substrate 1 attached to the light-emitting surface of the TFT substrate 2; the light-emitting surface M1 of the TFT substrate 2 includes: a first region Q1 covering the color filter substrate 1 and a second region Q2 not covered by the color filter substrate 1; the color filter substrate 1 includes an encapsulation surface M2 facing the second region Q2; the encapsulation surface M2 and the second region Q2 are connected by an encapsulating adhesive J, and the encapsulating adhesive J completely covers the encapsulation surface M1. A chip I is also disposed on the light-emitting surface M1 of the TFT substrate 2.

[0072] In this way, by setting the encapsulating adhesive to completely cover the encapsulation surface, a better encapsulating adhesive structure is obtained, which improves the encapsulation effect of the encapsulating adhesive and improves the reliability of the display panel.

[0073] Optionally, such as Figure 11 As shown, the surface of the encapsulant J facing away from the TFT substrate 2 and the color filter substrate 1 is a plane M3. Thus, the encapsulant J has a full structure, which further improves the encapsulation effect of the encapsulant J and further enhances the reliability of the display panel.

[0074] Based on the same inventive concept, this utility model embodiment also provides a display device. The implementation principle of the display device is similar to that of the aforementioned display panel. The specific implementation method of the display device can be found in the aforementioned display panel embodiment, and the repeated parts will not be described again.

[0075] Specifically, the present invention provides a display device, such as... Figure 12 As shown, it includes the display panel 1201 as described above. The display device includes, but is not limited to, a liquid crystal display (LCD).

[0076] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A gluing apparatus characterized by, The glue coating device is used for manufacturing a display panel, and the glue coating device comprises: a support; a workbench connected to the support and used for placing a display panel to be encapsulated; a glue valve located on one side of the workbench on which the display panel to be encapsulated is placed and used for coating encapsulation glue to the display panel to be encapsulated; a moving structure connected to the support and the glue valve respectively and used for controlling the glue valve to move relative to the workbench; a rotating structure connected to the glue valve and used for controlling the glue valve to rotate with a first direction as a rotating axis, the first direction being a relative movement direction of the glue valve and the workbench.

2. The gluing apparatus according to claim 1, wherein The rotating structure comprises: a clamping plate connected to the moving structure, located on both sides of the glue valve, and parallel to the first direction in an arrangement direction of the glue valve; a fixed connecting piece fixed to the clamping plate and connected to the glue valve; a guide rail located on the clamping plate and extending in a circular arc direction, a center of the circular arc being the fixed connecting piece; a moving connecting piece located in the guide rail and connected to the glue valve.

3. The gluing apparatus according to claim 1, wherein The rotating structure comprises: a clamping plate connected to the moving structure, located on both sides of the glue valve, and parallel to the first direction in an arrangement direction of the glue valve; the clamping plates on both sides of the glue valve are provided with through holes, and axes of the through holes coincide and are parallel to the first direction; a rotating connecting piece passing through the through holes and connected to the glue valve, used for rotating in the through holes and driving the glue valve to rotate.

4. The gluing apparatus according to claim 1, wherein An angle between a glue discharging direction of the glue valve and a second direction is greater than 0°, the glue discharging direction being a direction of a glue discharging port in the glue valve, and the second direction being a direction perpendicular to the workbench.

5. The gluing apparatus according to claim 4, wherein The angle between the glue discharging direction and the second direction is greater than or equal to 5° and less than or equal to 30°.

6. The gluing apparatus according to claim 1, wherein The glue valve comprises a body and a glue head extending from the body, a glue discharging port of the glue valve being located on a side of the glue head away from the body, the glue head being used for receiving encapsulation glue in the body and being coated to the display panel to be encapsulated by the glue discharging port.

7. The gluing apparatus according to claim 6, wherein A length of the glue head is 10 mm.

8. A display panel, characterized by, The display panel is coated with encapsulation glue by using the glue coating device according to any one of claims 1-7, and the display panel comprises: a TFT substrate and a color film substrate attached to a light-out surface of the TFT substrate; the light-out surface of the TFT substrate comprises: a first area covered by the color film substrate and a second area not covered by the color film substrate, the color film substrate comprises an encapsulation surface facing the second area, the encapsulation surface is connected to the second area by encapsulation glue, and the encapsulation glue completely covers the encapsulation surface.

9. The display panel of claim 8, wherein, A surface of the encapsulation glue away from the TFT substrate and the color film substrate is a plane.

10. A display device, characterized by comprising: The display panel comprises the display panel according to claim 8 or 9.

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