Display panel manufacturing device and display panel manufacturing method

By using a mask to shield the binding area during the laser stripping process, the problem of the binding area being susceptible to laser influence is solved, the yield of the display panel is improved, and the binding area is protected.

CN113745157BActive Publication Date: 2025-09-19GUANGDONG JUHUA PRINTING DISPLAY TECH CO LTD
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Patent Information

Application Number
CN202110860525.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-07-28
Publication Date
2025-09-19
Estimated Expiration
2041-07-28

AI Technical Summary

Technical Problem

During the laser lift-off process, the printed circuit board and/or the chip-on-film in the bonding area are easily affected by the laser, resulting in a low yield rate of the display panel.

Method used

A mask is used to shield the binding area. The mask shielding operation protects the binding area to avoid direct laser exposure. Combined with the movement of the laser stripping platform and the mask module, the laser stripping process of the display area is achieved.

Benefits of technology

The yield of the display panel is improved, the printed circuit board and the cover chip film in the binding area are protected, and display disorder caused by laser damage is avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a display panel manufacturing device and method. The device comprises a laser lift-off platform for carrying a display panel to be processed; a mask module disposed at the edge of the laser lift-off platform; and a mask having a first position fixed to the mask module and a second position for shielding a binding area of ​​the display panel to be processed. The mask shielding operation protects the binding area of ​​the display panel to be processed, thereby improving the yield of the resulting display panel.
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Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display panel manufacturing device and a display panel manufacturing method. Background Art

[0002] In recent years, display technology has developed rapidly, with flexible, bendable displays seeing significant improvements in both screen size and display quality. Currently, the manufacturing process for display panels involves first coating the entire surface of polyimide on a carrier glass to form a flexible substrate, then forming a display function layer on the flexible substrate, bonding electrical and electronic components and optical and electronic components, and then using laser lift-off to peel the flexible display device (including the flexible substrate and display function layer) from the carrier glass and perform thin film encapsulation to form the desired display panel. However, during the laser lift-off process, the printed circuit board (PCB) and / or chip on film (COF) in the bonding area are easily affected by the laser, resulting in a low yield of the resulting display panel.

[0003] Therefore, how to reduce the impact on the printed circuit board and / or the chip-on-film in the bonding area during the laser lift-off process, thereby improving the yield of the display panel, is an issue that needs to be urgently addressed. Summary of the Invention

[0004] The main purpose of the present invention is to provide a display panel manufacturing method and device, aiming to solve the problem of low yield of target display panels.

[0005] To achieve the above-mentioned purpose, the present invention provides a display panel production device, which includes: a laser peeling platform, which is used to carry the display panel to be processed; a mask module, which is arranged at the edge of the laser peeling platform; and a mask plate, which has a first position fixed to the mask module and a second position for shielding the binding area of ​​the display panel to be processed.

[0006] According to a specific embodiment of the present invention, when the mask is located at the first position, the mask is arranged opposite to the laser lift-off platform.

[0007] According to a specific embodiment of the present invention, the mask moves from the first position to the second position driven by the laser lift-off platform. When the mask is located at the second position, the mask is separated from the mask module.

[0008] According to a specific embodiment of the present invention, the display panel to be processed includes a display area and the binding area arranged at the edge of the display area, and the binding area is provided with at least one of a printed circuit board and a chip on film.

[0009] According to a specific embodiment of the present invention, the mask plate includes: a mask plate body, a hollow area in the middle of the mask plate body, a shielding portion close to the hollow area, and a surface on one side of the mask plate body respectively having a protruding support block and a limit block, and the support block is located between the limit block and the shielding portion.

[0010] According to a specific embodiment of the present invention, when the mask is located at the first position, the limiting block is used to engage with the mask module.

[0011] According to a specific embodiment of the present invention, when the mask is located in the second position, the support block is used to abut against the side of the laser stripping platform where the display panel to be processed is provided, and the shielding portion is used to shield the binding area of ​​the display panel to be processed provided on the laser stripping platform.

[0012] According to a specific embodiment of the present invention, the mask module includes: a connected transverse driving mechanism and a limit groove, the transverse driving mechanism is used to drive the limit groove to move; the limit groove has a third position away from the laser stripping platform, and when the transverse driving mechanism drives the limit groove to move from the third position to a fourth position close to the laser stripping platform, when the limit groove is in the fourth position, the limit groove is arranged relative to the limit block.

[0013] According to a specific embodiment of the present invention, the laser lift-off platform has a fifth position close to the mask module and a sixth position far away from the mask module.

[0014] In another aspect of the present invention, the present invention provides a method for preparing a display panel using the display panel manufacturing equipment described above, and the manufacturing method includes the following steps: providing a display panel to be processed, wherein the display panel to be processed includes a display area and a binding area arranged at the edge of the display area; setting the display surface to be processed on the laser stripping platform; using the mask to cover the binding area; and performing laser stripping processing on the display area in the display panel to be processed.

[0015] According to a specific embodiment of the present invention, the step of using the mask to block the binding area includes: moving the laser stripping platform to the bottom of the mask module; lifting the laser stripping platform so that the mask abuts against the laser stripping platform, so that the mask is located in a second position blocking the binding area; driving the mask module to move to a third position away from the laser stripping platform, and moving the laser stripping platform so that the mask and the display panel to be processed move to the laser stripping position.

[0016] According to a specific embodiment of the present invention, after the step of performing laser stripping treatment on the display area in the display panel to be processed, it also includes: moving the laser stripping platform to move the display panel to be processed and the mask plate after the laser stripping treatment to above the mask module; driving the mask module to move to a fourth position close to the laser stripping platform so that the mask module and the mask plate are arranged relative to each other; lowering the laser stripping platform so that the mask plate returns to the first position where it is fixedly set with the mask module.

[0017] The display panel manufacturing equipment proposed in the present invention uses a mask plate to block the binding area in the display panel to be processed, and performs laser stripping on the display area in the display panel to be processed after the blocking operation. The blocking operation of the mask plate protects the binding area in the display panel to be processed, thereby improving the yield of the final display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the display panel to be processed;

[0019] Figure 2 A top view of a display panel to be processed is shielded by a mask;

[0020] Figure 3 Create equipment schematics for display panels;

[0021] Figure 4 Schematic diagram of the laser peeling platform rising;

[0022] Figure 5 A schematic diagram of the transverse driving mechanism driving the limiting groove to move from the fourth position to the third position;

[0023] Figure 6 Schematic diagram of the laser peeling platform descending;

[0024] Figure 7 Schematic diagram of a process of manufacturing a display panel according to an embodiment of the present invention.

[0025] Description of Figure Numbers:

[0026] Label name Label name 21 Display area 22 Chip-on-chip film 23 printed circuit boards 31 mask 41 Horizontal drive mechanism 42 Limit block 43 Shielding part 44 Limit slot 45 Support block 46 Binding Area 48 Laser peeling platform

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0028] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] refer to Figures 1 to 6 The present invention provides a display panel manufacturing device, which includes a laser stripping platform 48, a mask module and a mask plate 31.

[0030] The laser stripping platform 48 is used to carry the display panel to be processed; the mask module is set at the edge of the laser stripping platform 48; the mask plate 31 has a first position fixed to the mask module and has a second position to block the binding area 46 of the display panel to be processed.

[0031] The display panel to be processed includes a display area and a binding area arranged at the edge of the display area, wherein the binding area is provided with at least one of a printed circuit board and a chip-on-film. Figure 1 , Figure 1 Schematic diagram of the display panel to be processed, one end of the chip-on-film 22 is bound to the display area 21 of the display panel to be processed, and the other end is bound to the printed circuit board 23, and the printed circuit board 23 and the chip-on-film 21 are only bound around the display panel, forming a binding area 46 of the display panel to be processed.

[0032] The display panel manufacturing equipment can drive the laser stripping platform 48 to move up, down, left and right, and complete the operation of blocking the mask plate 31 above the binding area 46 of the display panel to be processed through movement, complete the operation of moving the mask plate 31 and the display panel to be processed to the preset laser stripping position, and complete the operation of placing the mask plate 31 back into the mask module.

[0033] like Figure 3As shown, the mask module includes a transverse driving mechanism 41 and a limiting groove 44, the transverse driving mechanism 41 is connected to the limiting groove 44, the transverse driving mechanism 41 is used to drive the limiting groove 44 to move, the limiting groove 44 has a third position away from the laser stripping platform 48, and moves from the third position to a fourth position close to the laser stripping platform 48 under the drive of the transverse driving mechanism 41. When the limiting groove 44 is in the fourth position, the limiting groove 44 is arranged relative to the limiting block 42; it should be noted that the relative arrangement may refer to when the mask module is in the fourth position, that is, When the limit slot 44 is in the fourth position, the limit block in the mask plate 31 on the laser stripping platform 48 is not engaged with the limit slot 44, but is located above the limit slot 44. It can also be that when the mask module is in the fourth position, that is, when the limit slot 44 is in the fourth position, the limit block in the mask plate 31 on the laser stripping platform 48 is engaged with the limit slot 44; the mask module includes at least two horizontal driving mechanisms 41 and two limit slots 44. When all the horizontal driving mechanisms 41 receive the driving command, they simultaneously drive the corresponding limit slots 44 to move.

[0034] like Figure 2 and Figure 3 As shown, the mask 31 includes: a mask body, a hollow area in the middle of the mask body, a shielding portion 43 close to the hollow area, and a surface on one side of the mask body respectively having a protruding support block 45 and a limit block 42, and the support block 45 is located between the limit block 42 and the shielding portion 43.

[0035] like Figure 3 As shown, the mask 31 includes a limit block 42, a support block 45, and a shielding portion 43 connected in sequence. The limit block 42 is in the shape of a chamfered platform, the support block 45 is a rectangular block, and the shielding portion 43 is in the shape of a rectangular plate with a hollowed-out middle portion. The limit block 42 is used to engage with the mask module, the support block 45 is used to abut against the side of the laser lift-off platform 48 where the display panel to be processed is provided, and the shielding portion 43 is used to shield the binding area 46 of the display panel to be processed set on the laser lift-off platform 48;

[0036] Furthermore, the mask 31 has a first position fixedly arranged with the mask module. When the mask is in the first position, the limiting block 42 in the mask is engaged with the limiting groove 44 in the mask module, and the mask 31 is arranged opposite to the laser lift-off platform 48. At this time, the mask 31 does not abut against the laser lift-off platform 48.

[0037] Furthermore, when the mask 31 is in the first position, the two limiting grooves 44 in the mask module are located below the limiting blocks 42 in the mask 31, and the limiting grooves 44 are engaged with the limiting blocks 42, so that the mask 31 is fixed above the mask module. At this time, the limiting grooves 44 of the mask module are in the fourth position.

[0038] Further, if Figure 4 As shown, the mask plate 31 also has the function of moving from the first position to the second position separated from the mask module under the drive of the laser stripping platform 48. When the mask plate 31 is in the second position, the support block 45 in the mask plate 31 abuts against the side of the laser stripping platform 48 where the display panel to be processed is provided, and the shielding portion 43 in the mask plate 31 shields the binding area 46 of the display panel to be processed set on the laser stripping platform 48; when the mask plate 31 is in the second position, the limiting groove 44 in the mask module is located at a third position away from the laser stripping platform 48.

[0039] refer to Figure 2 , Figure 2 In order for the mask 31 to block the top view of the display panel to be processed, the display panel manufacturing equipment blocks the top of the binding area 46 of the display panel to be processed with the mask 31 .

[0040] refer to Figure 3 , Figure 3 Schematic diagram of display panel manufacturing equipment, including a mask module, a mask plate 31 and a laser lift-off platform 48. The mask module includes: a limit groove 44 and a lateral drive mechanism 41; the mask plate includes: a limit block 42, a support block 45 and a shielding portion 43. The limit block 42 is in the shape of a chamfered platform, the support block 45 is a rectangular block, and the shielding portion 43 is in the shape of a rectangular plate with a hollowed-out middle portion; the shielding portion 43 is used to cover the printed circuit board 23 and the chip-on-film 22, that is, the binding area of ​​the display panel to be processed Above 46, the printed circuit board 23 and the cover chip film 22 block the laser to avoid laser irradiation; the support block 45 is used to stabilize and support the mask 31 when the mask 31 moves with the laser stripping platform 48; the limit block 42 is used to engage with the limit groove 44, so that when the laser stripping platform 48 is lifted, the mask 31 can be accurately blocked above the binding area 46 of the display panel to be processed, and the mask 31 and the laser stripping platform 48 can be separated after the laser stripping process is completed.

[0041] Specifically, if Figure 5 As shown, the laser lift-off platform has a fifth position close to the mask module, as shown in FIG. Figure 6 As shown, the laser lift-off platform has a sixth position away from the mask module.

[0042] refer to Figure 4-6 , Figure 4It represents that when the laser lift-off platform 48 is lifted, the mask 31 originally fixed at the first position on the limiting groove is lifted together, so that the mask 31 abuts against the second position on the laser lift-off platform 48; Figure 5 It represents that the display panel manufacturing equipment uses the lateral driving mechanism 41 in the mask module to drive the limiting groove 44 to move outward from the fourth position to the third position, so that when the laser lift-off platform 48 descends, the limiting block 42 in the mask 31 will not be stuck in the limiting groove 44; Figure 7 It represents that the laser lift-off platform 48 moves the mask 31 and the display panel to be processed to the bottom of the mask module by descending, so as to move to the preset laser lift-off position for laser lift-off processing. It should be noted that after the display panel to be processed has been laser lift-off processed, the laser lift-off platform 48 returns the mask to the first position in the following order: Figure 6 to Figure 4 ,like Figure 6 As shown, the laser lift-off platform 48 is first moved to the bottom of the mask module, as shown in FIG. Figure 6 As shown, the laser lift-off platform 48 is then lifted to above the limiting groove 44 in the mask module, as shown in FIG. Figure 4 As shown, the limit groove 44 is finally moved to the bottom of the limit block 42 in the mask plate 31 through the horizontal driving mechanism 41 of the mask module, and then the laser stripping platform 48 is lowered to return the mask plate 31 to the first position fixed with the mask module.

[0043] The display panel manufacturing equipment proposed in the present invention uses a mask plate to block the binding area in the display panel to be processed, and performs laser stripping on the display area in the display panel to be processed after the blocking operation. The blocking operation of the mask plate protects the binding area in the display panel to be processed, thereby improving the yield of the final display panel.

[0044] Based on the above display panel manufacturing equipment, an embodiment of a display panel manufacturing method of the present invention is proposed;

[0045] Reference Figure 7 , Figure 7 1 is a flow chart of an embodiment of a method for manufacturing a display panel according to the present invention, wherein the method comprises:

[0046] Step S10, providing a display panel to be processed, wherein the display panel to be processed includes a display area and a binding area arranged at an edge of the display area;

[0047] Step S20, placing the display surface to be processed on the laser lift-off platform;

[0048] Step S30, using the mask to cover the binding area;

[0049] Step S40 , performing laser lift-off processing on the display area of ​​the display panel to be processed.

[0050] The display panel manufacturing method of this embodiment is applied to the display panel manufacturing equipment of the display panel production organization. The display panel manufacturing equipment can be a terminal or a PC device. For the convenience of description, the display panel manufacturing equipment is taken as an example for description; the display panel manufacturing equipment provides a display panel to be processed including a display area and a binding area arranged at the edge of the display area through a loading area, and sets the display panel to be processed on a laser stripping platform, and by moving the laser stripping platform, the mask plate originally fixed on the mask module is lowered to the laser stripping platform, and the mask plate is used to block the binding area in the display panel to be processed on the laser stripping platform, and then by moving the mask module, the mask plate can follow the laser stripping platform to move to the preset laser stripping position, and laser stripping processing is performed on the display area in the display panel to be processed, and then the mask plate is re-fixed on the mask module by moving the laser stripping platform and the mask module. It should be noted that the binding area of ​​the display panel to be processed is provided with at least one of a printed circuit board (PCB) and a chip-on-film (COF). The PCB (Printed Circuit Board), also known as a printed circuit board in Chinese, is an important electronic component, a support for electronic components, and a carrier for electrical interconnection of electronic components. The COF (Chip On Flex, or Chip On Film), often called a chip-on-film, is a soft film assembly technology for fixing an integrated circuit (IC) on a flexible circuit board. It uses a soft additional circuit board as a chip encapsulation carrier to combine the chip with the flexible substrate circuit, or simply refers to a soft additional circuit board without a packaged chip. The display area of ​​the display panel to be processed includes a carrier substrate, a flexible substrate, and a display function layer stacked in sequence.

[0051] The display panel manufacturing method of this embodiment provides a display panel to be processed, the display panel to be processed including a display area and a binding area disposed at the edge of the display area; places the display surface to be processed on a laser lift-off platform; shields the binding area with a mask; and performs a laser lift-off process on the display area of ​​the display panel to be processed. The present invention shields the binding area of ​​the display panel to be processed using a mask, and then performs a laser lift-off process on the display area of ​​the display panel to be processed after the shielding operation. The mask shielding operation protects the binding area of ​​the display panel to be processed, thereby improving the yield of the resulting display panel.

[0052] The following describes each step in detail:

[0053] Step S10, providing a display panel to be processed, wherein the display panel to be processed includes a display area and a binding area arranged at an edge of the display area;

[0054] In this embodiment, when the display panel manufacturing equipment detects the start-up instruction, it performs a series of preparatory operations on the display panel to be processed, and then provides the display panel to be processed to the display panel manufacturing equipment through the loading area. The display panel to be processed includes a display area and a binding area arranged at the edge of the display area. The binding area is provided with at least one of a printed circuit board and a chip-on-chip film, that is, the binding area may have both a printed circuit board and a chip-on-chip film, or may have one of the printed circuit board and the chip-on-chip film. If the printed circuit board and the chip-on-chip film in the binding area are directly irradiated by a strong laser, the components on the printed circuit board and the integrated circuit on the chip-on-chip film will be damaged, resulting in disordered display of the display panel.

[0055] Step S20, placing the display surface to be processed on the laser lift-off platform;

[0056] In this embodiment, the display panel manufacturing equipment places and fixes the display panel to be processed on a laser lift-off platform.

[0057] Step S30, using a mask to cover the binding area;

[0058] In this embodiment, the display panel manufacturing equipment moves the laser lift-off platform upward so that the mask originally fixed on the mask module is abutted against the laser lift-off platform through the support blocks in the mask. The shielding portion in the mask will then shield the binding area in the display panel to be processed.

[0059] Specifically, step S30 further includes:

[0060] Step a, and moving the laser lift-off platform to below the mask module;

[0061] In this step, after the display panel manufacturing equipment places the display panel to be processed on the laser stripping platform, it moves the laser stripping platform to a position below the mask module, which is directly below the mask module, so that when the laser stripping platform is lifted, it can accurately abut against the mask plate.

[0062] Step b, lifting the laser lift-off platform so that the mask abuts against the laser lift-off platform, and the mask is located at a second position that shields the binding area;

[0063] In this step, the display panel manufacturing equipment lifts the laser stripping platform located under the mask module, so that the support block in the mask plate fixed on the mask module abuts against the laser stripping platform, so that the mask plate is located in the second position of the shielding binding area. At this time, the shielding portion in the mask plate is located above the binding area in the display panel to be processed, so as to shield the binding area in the display panel to be processed on the laser stripping platform; it should be noted that the binding area is located at the edge of the display panel to be processed rather than inside the display panel to be processed; the mask version body has a hollow area in the middle, the mask version body has a shielding portion close to the hollow area, and the surface of one side of the mask version body has protruding support blocks and limit blocks respectively, and the support The support block is located between the limit block and the shielding part, and the support block is used to abut against the laser peeling platform, so that the shielding part forms a certain spatial interval with the surface of the laser peeling platform, so that the shielding part can shield the binding area in the display panel to be processed, and will not directly press on the binding area, thereby realizing contactless protection of the printed circuit board and the cover chip film in the binding area. The shielding part is in the shape of a rectangular block with a hollow middle. The hollow middle is to allow the display area in the display panel to be processed to be irradiated by the laser, and the non-hollowed part shields the binding area in the display panel to be processed, which is used to prevent the laser from irradiating the printed circuit board and the cover chip film in the binding area, thereby protecting the printed circuit board and the cover chip film in the binding area.

[0064] Step c: driving the mask module to move to a third position away from the laser lift-off platform, and moving the laser lift-off platform to move the mask and the display panel to be processed to the laser lift-off position.

[0065] In this step, the display panel production equipment drives the horizontal driving mechanism in the mask module to drive the limit groove in the mask module to move to the third position away from the laser stripping platform, so that the limit groove in the mask module will not restrict the mask from following the movement of the laser stripping platform, and moves the laser stripping platform to move the mask and the display panel to be processed on the laser stripping platform to the laser stripping position; the display panel production equipment lowers the laser stripping platform, and now the mask can follow the laser stripping platform to leave the first position fixed with the mask module; it should be noted that the third position refers to the position where the mask module moves away from the laser platform, and at this time the limit groove in the mask module will also be away from the limit block in the mask, and when the mask moves downward with the laser stripping platform, it will not be hindered by the limit groove; the first position refers to the position where the mask is located on the mask module when it is stationary, and at this time the limit block in the mask is clamped together with the limit groove in the mask module.

[0066] Step S40 , performing laser lift-off processing on the display area of ​​the display panel to be processed.

[0067] In this embodiment, the display panel manufacturing equipment performs laser stripping treatment on the display area in the display panel to be processed that is moved to the laser stripping treatment position; it should be noted that the laser stripping treatment requires the use of a laser with as short a wavelength as possible (lasers with wavelengths of 308nm and 248nm are commonly used in the laser stripping process). Since the excimer laser has the characteristics of short wavelength, high energy and power, the excimer laser is used for laser stripping when performing the laser stripping treatment. In addition to the lasers with the above wavelengths, lasers with different wavelengths can also be used for laser stripping treatment according to specific circumstances; the steps of performing the laser stripping operation on the display area in the display panel to be processed are: using a laser to scan the interface between the carrier substrate (such as glass) and the flexible substrate (such as polyimide) to destroy the bonding force between the two, and then removing the carrier substrate through stripping treatment to form a flexible display panel (including a flexible substrate and a display function layer).

[0068] Furthermore, after step S40, the following steps are further included:

[0069] Step d, moving the laser lift-off platform to move the display panel to be processed and the mask after the laser lift-off process to above the mask module;

[0070] In this step, after completing the laser stripping process on the display panel to be processed, the display panel manufacturing equipment moves the laser stripping platform, and moves the display panel to be processed and the mask plate that have undergone laser stripping process on the laser platform to above the mask module. At this time, the limit block in the mask plate is located above the movement trajectory of the mask module, and when the limit groove in the mask module is subsequently driven to move toward the direction close to the laser stripping platform, it will not hinder the movement of the limit groove.

[0071] Step e: driving the mask module to move to a fourth position close to the laser lift-off platform so that the mask module is arranged opposite to the mask;

[0072] In this step, the display panel manufacturing equipment drives the limit groove in the mask module to move to the fourth position close to the laser stripping platform through the horizontal driving mechanism in the mask module, so that the limit groove in the mask module is arranged relative to the mask plate on the laser stripping platform. At this time, the limit block in the mask plate is located directly above the limit groove in the mask module, or the limit block in the mask plate is clamped together with the limit groove in the mask module.

[0073] Step f: lowering the laser lift-off platform to return the mask to the first position where it is fixed to the mask module.

[0074] In this step, the display panel production equipment lowers the laser stripping platform. One situation is: at this time, the mask plate still descends with the laser stripping platform. When the limit block in the mask plate is engaged with the limit groove in the mask module, the mask plate is fixed on the limit groove of the mask module, and the laser stripping platform continues to descend to facilitate the separation of the mask plate, and the mask plate returns to the first position; another situation is: the limit block in the mask plate has been engaged with the limit groove in the mask module. At this time, the display panel production equipment can directly lower the laser stripping platform.

[0075] The display panel production equipment of this embodiment provides a display panel to be processed, including a display area and a binding area arranged at the edge of the display area, through a loading area, and sets the display panel to be processed on a laser stripping platform. By moving the laser stripping platform, the mask plate originally fixed on the mask module is lowered onto the laser stripping platform, and the mask plate is used to block the binding area in the display panel to be processed on the laser stripping platform. Then, by moving the mask module, the mask plate can follow the laser stripping platform to move to a preset laser stripping position, and laser stripping is performed on the display area in the display panel to be processed. Then, by moving the laser stripping platform and the mask module, the mask plate is re-fixed on the mask module, thereby preventing the laser from irradiating the printed circuit board and / or the flip chip film in the binding area, thereby improving the yield of the final display panel.

[0076] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0077] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0078] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0079] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A display panel manufacturing device, characterized in that: include: A laser lift-off platform, the laser lift-off platform being used to carry a display panel to be processed; A mask module, wherein the mask module is arranged at an edge of the laser lift-off platform; The mask plate has a first position fixed to the mask module and a second position for shielding the binding area of ​​the display panel to be processed; wherein, when the mask plate is in the first position, the limit block in the mask plate is engaged with the limit groove in the mask module, the mask module is arranged at the edge of the laser stripping platform, the mask plate is above the laser stripping platform, and does not abut the laser stripping platform; and / or the mask plate has the ability to move from the first position to the second position under the drive of the laser stripping platform, and when the mask plate is in the second position, the mask plate is separated from the mask module.

2. The display panel manufacturing equipment according to claim 1, wherein: The display panel to be processed includes a display area and the binding area arranged at the edge of the display area, and the binding area is provided with at least one of a printed circuit board and a chip-on-film.

3. The display panel manufacturing equipment according to claim 2, wherein: The mask includes: The mask version body has a hollow area in the middle, the mask version body has a shielding portion close to the hollow area, and the surface of one side of the mask version body has a protruding support block and a limit block respectively, and the support block is located between the limit block and the shielding portion.

4. The display panel manufacturing equipment according to claim 3, wherein: When the mask is located at the first position, the limiting block is used to engage with the mask module; and / or When the mask is located at the second position, the support block is used to abut against the side of the laser lift-off platform where the display panel to be processed is provided, and the shielding portion is used to shield the binding area of ​​the display panel to be processed provided on the laser lift-off platform.

5. The display panel manufacturing equipment according to claim 3, wherein: The mask module includes: A connected transverse driving mechanism and a limiting slot, wherein the transverse driving mechanism is used to drive the limiting slot to move; The limit groove has a third position away from the laser stripping platform, and when the horizontal driving mechanism drives the limit groove to move from the third position to a fourth position close to the laser stripping platform, when the limit groove is at the fourth position, the limit block is located directly above the limit groove and is not engaged with the limit groove, or the limit block is engaged with the limit groove.

6. The display panel manufacturing equipment according to claim 1, wherein: The laser lift-off platform has a fifth position close to the mask module and a sixth position far from the mask module.

7. A method for manufacturing a display panel using the display panel manufacturing equipment according to any one of claims 1 to 6, characterized in that: The steps include: Providing a display panel to be processed, the display panel to be processed comprising a display area and a binding area arranged at an edge of the display area; placing the display surface to be processed on the laser lift-off platform; Using the mask to cover the binding area; Performing laser lift-off processing on the display area of ​​the display panel to be processed.

8. The method for manufacturing a display panel according to claim 7, wherein: The step of using a mask to cover the binding area includes: Moving the laser lift-off platform to below the mask module; Lifting the laser lift-off platform so that the mask abuts against the laser lift-off platform, and the mask is located in a second position that blocks the binding area; wherein the mask moves from the first position to the second position under the drive of the laser lift-off platform, and when the mask is in the second position, the mask is separated from the mask module; The mask module is driven to move to a third position away from the laser lift-off platform, and the laser lift-off platform is moved to move the mask and the display panel to be processed to the laser lift-off position.

9. The method for manufacturing a display panel according to claim 8, wherein: After the step of performing laser lift-off processing on the display area of ​​the display panel to be processed, the method further includes: Moving the laser lift-off platform to move the display panel to be processed and the mask plate after the laser lift-off process to above the mask module; driving the mask module to move to a fourth position close to the laser lift-off platform so that the limiting block in the mask is located directly above the limiting groove in the mask module; The laser lift-off platform is lowered to return the mask to the first position where it is fixedly arranged with the mask module.

Citation Information

Patent Citations

  • Laser lift-off device and method

    CN107452898A

  • Low-temperature polycrystalline silicon laser annealing device and method

    CN109742042A