Screen forming method and display screen

Abstract

The embodiment of the invention discloses a screen forming method and a display screen. The screen forming method comprises the following steps: providing a printing frame; structural adhesive is dispensed on the display panel according to a preset adhesive dispensing path, pre-curing treatment is conducted on the structural adhesive, the position of the preset adhesive dispensing path is located at the position where the to-be-attached surface of the display panel shrinks inwards by a preset distance in the first direction, and the first direction is the direction in which the edge of the to-be-attached surface of the display panel points to the center position; the frame and the surface, provided with the structural adhesive, of the display panel are subjected to alignment attachment; and filling the gap between the frame and the display panel which are laminated by using filling glue, and curing the filling glue. According to the technical scheme of the embodiment of the invention, the high-precision printing frame is provided, double fixation of the structural adhesive and the filling adhesive is combined, unstressed packaging of the display panel and the frame is realized, the yield and reliability of screen forming are improved, and the high-precision packaging requirement of an ultra-thin special-shaped screen body is met.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen production, and in particular to a screen forming method and a display screen. Background Art

[0002] With the continuous advancement of technology, various electronic products such as mobile phones, tablets, TVs or monitors have been widely used in people's work and life, and the demand for screens is also growing. Therefore, methods for screen molding have been explored.

[0003] In the existing technology, the Low-injection Pressure Over-molding (LIPO) technology is used. Low pressure is used during the injection process to prevent damage to sensitive components. At the same time, because the material has better sealing properties, it can also enhance the waterproof and dustproof capabilities of the packaged product. The application of LIPO technology can make the screen installation more stable, effectively reduce the frame size, and increase the screen-to-body ratio.

[0004] However, since the application of LIPO technology requires the use of specific molds, the manufacturing and maintenance costs are high, and it is not suitable for long-cycle mass production. Summary of the invention

[0005] The present invention provides a screen forming method and a display screen to solve the problem of high production and maintenance costs and improve the yield and reliability of screen forming.

[0006] According to one aspect of the present invention, a screen forming method is provided, the screen forming method comprising:

[0007] Provide printing border;

[0008] Structural adhesive is applied on the display panel according to a preset adhesive dispensing path, and the structural adhesive is pre-cured, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted by a preset distance along a first direction, and the first direction is a direction from an edge of the surface to be bonded of the display panel to a center position;

[0009] Align and bond the frame and the surface of the display panel provided with the structural adhesive;

[0010] A filling glue is used to fill the space between the frame and the display panel after bonding, and the filling glue is cured.

[0011] Optionally, provide a print border, including:

[0012] The preset file format of the frame is imported into the printing device, and the frame is printed using the stereolithography technology.

[0013] Optionally, after the preset file format of the frame is imported into the printing device and the frame is printed using the stereolithography technology, the following steps are further included:

[0014] Clean the frame and cure it with UV light.

[0015] Optionally, after providing the printed frame and before applying the structural adhesive on the display panel according to a preset adhesive dispensing path and pre-curing the structural adhesive, the method further includes:

[0016] Set dispensing parameters; the dispensing parameters include dispensing speed, dispensing pressure or dispensing time;

[0017] At a position retracted by a preset distance along the first direction, a preset graph is drawn according to the dispensing parameters to obtain a preset dispensing path.

[0018] Optionally, aligning and laminating the frame and the surface of the display panel provided with the structural adhesive includes:

[0019] Placing the display panel on the first carrier and adsorbing it;

[0020] Placing the frame on the second stage, and visually aligning the frame with the surface of the display panel provided with the structural adhesive;

[0021] The frame and the surface of the display panel provided with the structural adhesive are pressed and bonded in sections by applying a preset interval pressure, and each bonding is maintained for a preset time period.

[0022] Optionally, after aligning and laminating the frame and the surface of the display panel provided with the structural adhesive, and before using a filling adhesive to fill the space between the frame and the display panel after lamination and curing the filling adhesive, the method includes:

[0023] The workpieces after alignment and bonding are cleaned by plasma cleaning equipment.

[0024] Optionally, a filling glue is used to fill the space between the frame and the display panel after bonding and the filling glue is cured, including:

[0025] The filling glue is applied to the bonded frame and the surface to be bonded of the display panel to be filled and cured at least twice.

[0026] Optionally, the frame and the surface of the display panel to be bonded are filled and cured at least twice with a filling adhesive, including:

[0027] Calculate the volume of the position to be filled by scanning with a visual module, fill the position to be filled with a first preset proportion of filling glue, and perform a first curing process;

[0028] The remaining volume of the position to be filled is calculated again by scanning with the visual module, a second preset proportion of filling glue is filled, and a second curing process is performed.

[0029] Optionally, before applying the structural adhesive on the display panel according to the preset adhesive dispensing path and pre-curing the structural adhesive, the method further includes:

[0030] Use plasma cleaning equipment to perform surface activation treatment on the surface to be bonded.

[0031] According to another aspect of the present invention, a display screen is provided, which is prepared by the above-mentioned screen forming method.

[0032] The technical solution of the embodiment of the present invention provides a high-precision printed frame, and applies structural glue on the surface of the display panel to be bonded according to a preset glue dispensing path, and cures the structural glue, aligns and bonds the frame and the surface of the display panel provided with the structural glue, and then uses a filling glue to fill the space between the bonded frame and the display panel, and cures the filling glue. By applying a high-precision printed frame, combined with the dual fixation of structural glue and filling glue, stress-free packaging of the display panel and the frame is achieved. Compared with the screen molding method based on LIPO technology in the prior art, the technical solution of the embodiment of the present invention can save the cost of preparation and maintenance, and improve the yield and reliability of screen molding, and is suitable for the high-precision packaging requirements of ultra-thin special-shaped screens.

[0033] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 is a flow chart of a screen forming method provided according to an embodiment of the present invention;

[0036] Figure 2 is a schematic diagram of a frame structure provided according to an embodiment of the present invention;

[0037] Figure 3 is a schematic structural diagram of a dispensing path provided on a display panel according to an embodiment of the present invention;

[0038] Figure 4is a flow chart of another screen forming method provided according to an embodiment of the present invention;

[0039] Figure 5 is a flow chart of another screen forming method provided according to an embodiment of the present invention;

[0040] Figure 6 is a flow chart of another screen forming method provided according to an embodiment of the present invention;

[0041] Figure 7 is a flow chart of another screen forming method provided according to an embodiment of the present invention;

[0042] Figure 8 is a schematic diagram of the structure of a display screen provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] Figure 1 1 is a flow chart of a screen forming method according to an embodiment of the present invention. This embodiment can be applied to prepare a display screen. The screen forming method can be performed by a screen forming device, which can be implemented in the form of hardware and / or software. Figure 1 As shown, the screen forming method includes:

[0046] S110, providing a printing frame.

[0047] Specifically, Figure 2is a schematic diagram of a frame structure provided according to an embodiment of the present invention. Figure 2 As shown, a three-dimensional (3D) printing method can be applied to print and form the frame 10. The integrated manufacturing of multifunctional materials can be achieved, the assembly steps can be reduced, and the manufacturing cost can be saved. The multifunctional material layer includes but is not limited to a conductive layer, an insulating layer or a light-transmitting layer.

[0048] S120, applying structural adhesive on the display panel according to a preset adhesive dispensing path, and pre-curing the structural adhesive, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted inward by a preset distance along a first direction, and the first direction is a direction from the edge of the surface to be bonded of the display panel to the center position.

[0049] Specifically, Figure 3 is a schematic diagram of a structure in which a dispensing path is provided on a display panel according to an embodiment of the present invention, such as Figure 3 As shown, the preset dispensing path is a path for dispensing structural glue pre-planned in the dispensing device. The dispensing device performs the operation of dispensing structural glue according to the preset dispensing path. The preset distance is a pre-set distance from the edge of the surface to be bonded to the center position of the display panel when forming the preset dispensing path. The dispensing path 30 on the display panel 20 can be designed in a computer, and the designed dispensing path 30 can be converted into a program executable by the dispensing machine, and the structural glue is applied to the surface to be bonded of the display panel 20 according to the dispensing path 30. After dispensing the structural glue, the glue line is pre-cured.

[0050] In an optional embodiment of the present invention, before applying the structural adhesive on the display panel according to a preset adhesive dispensing path and pre-curing the structural adhesive, the method further includes: applying a plasma cleaning device to perform surface activation treatment on the surface to be bonded.

[0051] Specifically, plasma cleaning equipment is used to clean the surface of the display panel to be bonded, so as to avoid the influence of impurities on the surface of the display panel on the screen forming process and improve the precision of screen forming. The working principle of plasma cleaning equipment: In a vacuum chamber, a high-energy disordered plasma is generated by igniting a radio frequency power supply under a certain pressure. The "active" components such as ions, electrons and active groups in the plasma bombard the surface of the cleaned product, and physically or chemically react with the stains and impurities on the surface, thereby achieving the purpose of cleaning and modification. The use of plasma cleaning equipment to clean the surface of the display panel to be bonded has the characteristics of efficient cleaning, low cost and improved surface performance. While cleaning and decontaminating the surface of the display panel to be bonded, it can also improve the wetting properties of the surface and the adhesion of the film, which is beneficial to the subsequent bonding process.

[0052] S130, aligning and bonding the frame and the surface of the display panel provided with the structural adhesive.

[0053] Specifically, after applying the structural adhesive and curing the adhesive line, the frame and the surface of the display panel provided with the structural adhesive are aligned and bonded. Exemplarily, a visual positioning and recognition method can be used to place the frame and the surface of the display panel provided with the structural adhesive relative to each other, and align and bond them. The specific process can include: selecting two cameras (high resolution, such as 5 million pixels), a mechanical arm and an optical platform, placing the display panel on the optical platform, and the surface provided with the structural adhesive facing up, using one of the cameras to shoot the adhesive line on the display panel, and fitting the center coordinates of the four adhesive lines; the mechanical arm grabs the frame and fixes it at the relative position of the surface provided with the structural adhesive on the display panel, and shoots the frame through another camera, and fits the center coordinates of the four edges; the center coordinates of the four adhesive lines and the center coordinates of the four edges of the frame are converted to the same mechanical coordinate system, and the offset of the center coordinates is calculated; the mechanical arm is controlled to adjust the position of the frame to compensate for the offset; when the offset is within the allowable error range (such as the offset is less than 0.02mm), the alignment is completed; the frame and the surface provided with the structural adhesive on the display panel are pressed together by a vacuum suction cup to complete the bonding.

[0054] The frame and the display panel are aligned and bonded by means of visual positioning and recognition, thereby improving the accuracy of alignment and bonding.

[0055] S140, using a filling glue to fill the space between the frame and the display panel after bonding, and curing the filling glue.

[0056] Specifically, the filling glue is an adhesive that fills gaps, holes or cracks, and has high filling properties, high bonding strength, good curing properties and corrosion resistance. The filling glue includes but is not limited to epoxy filling glue, silicone filling glue and polyurethane filling glue. After the surfaces of the frame and the display panel on which the structural glue is provided are aligned and bonded, the gap between the bonded frame and the display panel is filled with the filling glue, and the filling glue is cured to improve the reliability of the screen molding.

[0057] The technical solution of the embodiment of the present invention provides a high-precision printed frame, and applies structural glue on the surface of the display panel to be bonded according to a preset glue dispensing path, and cures the structural glue, aligns and bonds the frame and the surface of the display panel provided with the structural glue, and then uses a filling glue to fill the space between the bonded frame and the display panel, and cures the filling glue. By applying a high-precision printed frame, combined with the dual fixation of structural glue and filling glue, stress-free packaging of the display panel and the frame is achieved. Compared with the screen molding method based on LIPO technology in the prior art, the technical solution of the embodiment of the present invention can save the cost of preparation and maintenance, and improve the yield and reliability of screen molding, and is suitable for the high-precision packaging requirements of ultra-thin special-shaped screens.

[0058] Figure 4 1 is a flow chart of another screen forming method provided according to an embodiment of the present invention. This embodiment is a detailed description of the technical features of the above embodiment. Figure 4 As shown, the screen forming method includes:

[0059] S210, importing the preset file format of the frame into a printing device, and applying stereolithography technology to print and form the frame.

[0060] Specifically, the preset file format is a preset file format that satisfies the printing device. Exemplarily, the file that satisfies the printing device may be a Computer Aided Design (CAD) file, and the formats of the CAD file include DWG, DXF and DWF.

[0061] Select a stereolithography apparatus (SLA) printing device and import the CAD file of the frame to be printed into the SLA printing device. Select a photosensitive resin with a low shrinkage rate as the printing material, place the photosensitive resin in a constant temperature liquid tank after vacuum degassing, calibrate the parameters of the photosensitive resin, and use ultraviolet light to irradiate the liquid photosensitive resin to solidify it layer by layer, thereby constructing a three-dimensional frame. The application of SLA technology can form a frame with high precision and good surface quality, improve the reliability of screen molding and the yield of the formed screen.

[0062] S220, cleaning the frame and performing ultraviolet curing treatment on the frame.

[0063] Specifically, the frame formed by printing is cleaned and subjected to ultraviolet curing treatment. Ultraviolet curing treatment is a technology that uses ultraviolet energy to cause a curing reaction in a specific material.

[0064] In the UV curing system, it usually contains ingredients such as photoinitiator, resin and diluent. When ultraviolet rays irradiate the surface of the material, the photoinitiator absorbs the energy of ultraviolet rays and produces active species such as free radicals or cations. These active species trigger cross-linking reactions between resin molecules, thereby converting the material from a liquid or flowable state to a solid state and achieving curing.

[0065] S230, applying structural adhesive on the display panel according to a preset adhesive dispensing path, and pre-curing the structural adhesive, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted a preset distance inward along a first direction, and the first direction is a direction from the edge of the surface to be bonded of the display panel to the center position.

[0066] S240, aligning and bonding the frame and the surface of the display panel provided with the structural adhesive.

[0067] S250, using a filling glue to fill the space between the frame and the display panel after bonding, and curing the filling glue.

[0068] Figure 5 is a flow chart of another screen forming method provided according to an embodiment of the present invention. Figure 5 As shown, the screen forming method includes:

[0069] S310, providing a printing frame.

[0070] S320, setting dispensing parameters; wherein the dispensing parameters include dispensing speed, dispensing pressure or dispensing time.

[0071] Specifically, the dispensing parameters are set according to the dispensing amount and the graphics to be drawn, for example, the dispensing speed, dispensing frequency, the pressure of each dispensing, or the time or time period for dispensing.

[0072] S330, at a position retracted by a preset distance along the first direction, drawing a preset graphic according to the dispensing parameters to obtain a preset dispensing path.

[0073] Specifically, the preset graphics are pre-set graphics of the dispensing path that the dispensing machine needs to draw. For example, the preset graphics include straight lines, arcs or polygons. The preset distance is set to 0.3mm, and the dispensing machine draws straight lines, arcs or polygons according to the set dispensing speed, dispensing pressure and dispensing time, forming the preset dispensing path while completing the operation of dispensing structural glue on the display panel.

[0074] S340, applying structural adhesive on the display panel according to a preset adhesive dispensing path, and pre-curing the structural adhesive, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted inward by a preset distance along a first direction, and the first direction is a direction from the edge of the surface to be bonded of the display panel to the center position.

[0075] S350, aligning and bonding the frame and the surface of the display panel provided with the structural adhesive.

[0076] S360, using a filling glue to fill the space between the frame and the display panel after bonding, and curing the filling glue.

[0077] Figure 6 is a flow chart of another screen forming method provided according to an embodiment of the present invention. Figure 6 As shown, the screen forming method includes:

[0078] S410, providing a printing frame.

[0079] S420, applying structural adhesive on the display panel according to a preset adhesive dispensing path, and pre-curing the structural adhesive, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted inward by a preset distance along a first direction, and the first direction is a direction from the edge of the surface to be bonded of the display panel to the center position.

[0080] S430, placing the display panel on the first carrier and adsorbing it.

[0081] Specifically, the display panel can be placed on a relatively lower loading platform and adsorbed. The surface of the display panel to be bonded is placed opposite to the frame.

[0082] S440, placing the frame on the second carrier, and visually aligning the frame with the surface of the display panel provided with the structural adhesive.

[0083] Specifically, the profiling stage is a support and adjustment platform with adjustable clamps, which has the characteristics of high precision and vibration suppression. The frame can be placed on the profiling stage and CCD visual positioning can be performed. Exemplarily, a CCD camera is used to capture the frame image and fit the center coordinates of the four edges; another camera is used to capture the glue lines on the display panel and fit the center coordinates of the four glue lines; the center coordinates of the four glue lines and the center coordinates of the four edges of the frame are converted to the same mechanical coordinate system, and the offset of the center coordinates is calculated; the profiling stage is controlled to adjust the position of the frame to compensate for the offset; when the offset is within the allowable error range (such as the offset is less than 0.02mm), the alignment is completed.

[0084] After the alignment is completed, pressurization is performed.

[0085] S450, applying a preset interval of pressure to pressurize and bond the frame and the surface of the display panel provided with the structural adhesive in sections, and each bonding is maintained for a preset period of time.

[0086] Specifically, the pressure at the preset interval can be understood as the pressure change amount each time the pressure is applied. The preset time period is the corresponding pressurization time period when each pressure value is applied to the frame and the display panel. Exemplarily, the pressure value and the pressure interval each time can be set to start from 0.1MPa, and pressurize 0.2MPa each time. For example, the change in pressure can be: 0.1MPa-0.3MPa-0.5MPa, and when applying the corresponding pressure value, each time it is kept for 5 seconds before pressurization.

[0087] By setting up segmented pressurization lamination, stress concentration can be controlled, deformation of the frame or display panel material due to stress concentration can be avoided, and the impact of process fluctuations on the lamination results can be reduced. Each lamination is maintained for a preset period of time, so that the molecules on the lamination surface are fully in contact and diffused, thereby improving the stability of the interface lamination. Therefore, by setting up segmented pressurization lamination and maintaining a preset period of time for each lamination, the accuracy and reliability of lamination can be improved.

[0088] S460, cleaning the workpiece after alignment and bonding by plasma cleaning equipment.

[0089] Specifically, the workpieces after alignment and bonding are cleaned by plasma cleaning equipment, and the water drop angle is reduced to increase the glue filling, so that the frame and the display panel are more firmly bonded.

[0090] S470, applying a filling adhesive to fill and cure the surfaces of the frame and the display panel to be bonded after bonding at least twice.

[0091] Specifically, if only one filling is performed, the filling may be incomplete and there may be small gaps due to poor colloid fluidity or operation errors. Applying the filling glue to fill and cure the surface of the frame and the display panel to be bonded at least twice can reduce defects and improve the sealing between the frame and the display panel. Filling and curing at least twice can reduce the possibility of light leakage at the edge and improve the yield of the formed screen.

[0092] In an optional embodiment of the present invention, S470, the filling glue is applied to the surface to be bonded of the frame and the display panel after bonding and is filled and cured at least twice, including: calculating the volume of the position to be filled by scanning with a visual module, filling the position to be filled with a first preset proportion of filling glue, and performing a first curing treatment; calculating the remaining volume of the position to be filled by scanning with a visual module again, filling the position with a second preset proportion of filling glue, and performing a second curing treatment.

[0093] Specifically, the first preset ratio is a preset ratio of the first filling of glue. Exemplarily, the first preset ratio is 90%, that is, 90% of the volume of the glue dispensing groove is filled with glue. The second preset ratio is a preset ratio of the second filling of glue. Exemplarily, when the first preset ratio is 90%, the second preset ratio is 10%.

[0094] Apply filling glue to fill and cure the surface to be bonded of the bonded frame and display panel at least twice. The first time the glue is filled, the volume of the glue dispensing groove between the surface to be bonded of the frame and the display panel is calculated by scanning with the visual module, and the glue dispensing device is used to fill the glue dispensing groove with a specified volume of glue for the first time. After waiting for the glue to automatically level in the glue dispensing groove, the first curing is performed. The remaining amount of glue filled in the glue dispensing groove is calculated by scanning with the visual module again, and the glue dispensing device is controlled to fill the glue for the second time based on the remaining amount of glue filled. After waiting for the glue to automatically level in the glue dispensing groove, the second curing is performed. The curing method can be ultraviolet curing.

[0095] By filling and curing the surfaces of the frame and the display panel to be bonded at least twice, defects can be reduced and the sealing between the frame and the display panel can be improved. At the same time, the possibility of light leakage at the edges can be reduced and the yield of the screen can be improved.

[0096] After filling glue twice, the frame and display panel are bonded together to form a display screen.

[0097] Figure 7 is a flow chart of another screen forming method provided according to an embodiment of the present invention. Figure 7 As shown, the screen forming method includes:

[0098] S510, importing the preset file format of the frame into a printing device, and applying stereolithography technology to print and form the frame.

[0099] S511, cleaning the frame and performing ultraviolet curing treatment on the frame.

[0100] S512. Use plasma cleaning equipment to perform surface activation treatment on the surface to be bonded.

[0101] S513, setting dispensing parameters; wherein the dispensing parameters include dispensing speed, dispensing pressure or dispensing time.

[0102] S514, at a position retracted by a preset distance along the first direction, drawing a preset graph according to the dispensing parameters to obtain a preset dispensing path.

[0103] S515, applying structural adhesive on the display panel according to a preset adhesive dispensing path, and pre-curing the structural adhesive, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted a preset distance inward along a first direction, and the first direction is a direction from the edge of the surface to be bonded of the display panel to the center position.

[0104] S516, placing the display panel on the first carrier and adsorbing it.

[0105] S517, placing the frame on the second carrier, and visually aligning the frame with the surface of the display panel provided with the structural adhesive.

[0106] S518, applying a preset interval of pressure to pressurize and bond the frame and the surface of the display panel provided with the structural adhesive in sections, and each bonding is maintained for a preset time period.

[0107] S519, cleaning the workpiece after alignment and bonding by plasma cleaning equipment.

[0108] S520, calculating the volume of the position to be filled by scanning with a visual module, filling the position to be filled with a first preset proportion of filling glue, and performing a first curing process.

[0109] S521, again scan and calculate the remaining volume of the position to be filled by the visual module, fill the position with a second preset ratio of filling glue, and perform a second curing process.

[0110] The technical solution of the embodiment of the present invention provides a high-precision printed frame, combined with dual fixation of structural adhesive and filling adhesive, to achieve stress-free packaging of the display panel and the frame, improve the yield and reliability of screen molding, and is suitable for the high-precision packaging requirements of ultra-thin special-shaped screens.

[0111] Figure 8 is a schematic diagram of the structure of a display screen provided according to an embodiment of the present invention. Figure 8 As shown, the display screen 100 is prepared by the screen forming method of any embodiment of the present invention. The display screen 100 includes a frame 10 and a display panel 20.

[0112] The display screen of the embodiment of the present invention is prepared by the screen forming method of any embodiment of the present invention, and therefore has corresponding beneficial effects, which will not be described in detail here.

[0113] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0114] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen forming method, characterized in that: include: Provide printing border; Structural adhesive is applied on the display panel according to a preset adhesive dispensing path, and the structural adhesive is pre-cured, wherein the preset adhesive dispensing path is located at a position where the surface to be bonded of the display panel is retracted by a preset distance along a first direction, and the first direction is a direction from an edge of the surface to be bonded of the display panel to a center position; Aligning and laminating the frame and the surface of the display panel provided with the structural adhesive; A filling glue is used to fill the space between the frame and the display panel after bonding, and the filling glue is cured.

2. The screen forming method according to claim 1, characterized in that: The providing of a printing frame comprises: The preset file format of the frame is imported into the printing device, and the frame is printed by applying the stereolithography technology.

3. The screen forming method according to claim 2, characterized in that: After importing the preset file format of the frame into the printing device and applying the stereolithography technology to print the frame, the method further includes: The frame is cleaned and subjected to ultraviolet curing treatment.

4. The screen forming method according to claim 1, characterized in that: After providing the printed frame and before applying the structural adhesive on the display panel according to the preset adhesive dispensing path and pre-curing the structural adhesive, the method further includes: Setting dispensing parameters; wherein the dispensing parameters include dispensing speed, dispensing pressure or dispensing time; At a position retracted by a preset distance along the first direction, a preset graph is drawn according to the dispensing parameters to obtain the preset dispensing path.

5. The screen forming method according to claim 1, characterized in that: The step of aligning and laminating the frame and the surface of the display panel provided with the structural adhesive comprises: Placing the display panel on a first carrier and adsorbing it; Placing the frame on a second carrier, and visually aligning the frame with the surface of the display panel on which the structural adhesive is disposed; The frame and the surface of the display panel provided with the structural adhesive are pressed and bonded in sections by applying pressure at preset intervals, and each bonding is maintained for a preset time period.

6. The screen forming method according to claim 1, characterized in that: After aligning and laminating the frame and the surface of the display panel provided with the structural adhesive, and before filling between the frame and the display panel after lamination with a filling adhesive and curing the filling adhesive, the method includes: The workpieces after alignment and bonding are cleaned by plasma cleaning equipment.

7. The screen forming method according to claim 1, characterized in that: The step of using a filling glue to fill the space between the frame and the display panel after bonding and curing the filling glue comprises: Filling glue is applied to fill and cure the surfaces of the frame and the display panel to be bonded at least twice.

8. The screen forming method according to claim 7, characterized in that: The step of applying the filling glue to fill and solidify the frame and the surface to be bonded of the display panel after bonding at least twice includes: Calculate the volume of the position to be filled by scanning with a visual module, fill the position to be filled with a first preset proportion of filling glue, and perform a first curing process; The remaining volume of the position to be filled is calculated again by scanning with the visual module, a second preset proportion of filling glue is filled, and a second curing process is performed.

9. The screen forming method according to claim 1, characterized in that: Before applying the structural adhesive on the display panel according to the preset adhesive dispensing path and pre-curing the structural adhesive, the method further includes: The surface to be bonded is treated with a plasma cleaning device for surface activation.

10. A display screen, characterized in that: The screen is prepared by the screen forming method according to any one of claims 1 to 9.

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