Display panel manufacturing method, display panel and display device

Abstract

The invention discloses a manufacturing method of a display panel, the display panel and a display device. The manufacturing method of the display panel comprises the steps that a to-be-welded panel is provided, the to-be-welded panel comprises a driving substrate, a color film substrate and a liquid crystal layer, the driving substrate and the color film substrate are oppositely arranged in a spaced mode, the liquid crystal layer is located between the driving substrate and the color film substrate, the driving substrate is provided with a first welding area surrounding the liquid crystal layer, and the first welding area is provided with a second welding area surrounding the liquid crystal layer; the color film substrate is provided with a second welding area surrounding the liquid crystal layer; laser beams are emitted from the outer side of the to-be-welded panel to the first welding area or the second welding area, so that the first welding area or the second welding area is partially melted to the position between the driving substrate and the color film substrate to fix the driving substrate and the color film substrate, and the emitting direction of the laser beams is obliquely crossed with the interval direction of the driving substrate and the color film substrate. Therefore, the emitting direction of the laser beams is obliquely intersected with the interval direction, the risk of laser energy reduction is relieved, and the welding stability of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the technical field of display panels, and in particular to a method for manufacturing a display panel, a display panel, and a display device. Background Art

[0002] With the continuous development of the industry, the application scenarios of display panels are becoming increasingly diverse. Different application scenarios have different requirements for display panels. For example, the driving substrate and color film substrate of the display panel can be laser welded to improve the anti-peeling and waterproof performance of the display panel.

[0003] At present, existing welding lasers are usually incident in a direction perpendicular to the display panel to weld the display panel. The optical path of the welding laser needs to completely penetrate the edge parts of the color filter substrate and the driving substrate, which leads to a decrease in laser energy. The driving substrate and the color filter substrate are difficult to be fully melted, which in turn leads to loose welding and the risk of reduced anti-peeling performance of the display panel. Summary of the Invention

[0004] The main purpose of this application is to provide a method for manufacturing a display panel, a display panel and a display device, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the present application provides a method for manufacturing a display panel, which includes: providing a panel to be welded, wherein the panel to be welded includes a driving substrate, a color filter substrate and a liquid crystal layer, the driving substrate and the color filter substrate are arranged relative to each other, the liquid crystal layer is located between the driving substrate and the color filter substrate, the driving substrate has a first welding area surrounding the liquid crystal layer, and the color filter substrate has a second welding area surrounding the liquid crystal layer; incident a laser beam from the outside of the panel to be welded to the first welding area or the second welding area, so that the first welding area or the second welding area is partially melted between the driving substrate and the color filter substrate to fix the driving substrate and the color filter substrate, wherein the emission direction of the laser beam is oblique to the spacing direction of the driving substrate and the color filter substrate.

[0006] In some embodiments, the step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area includes: incidenting a first welding laser to the first welding area from the side of the driving substrate facing away from the color filter substrate, so that the first welding area is partially melted between the driving substrate and the color filter substrate; incidenting a second welding laser to the second welding area from the side of the color filter substrate facing away from the driving substrate, so that the second welding area is partially melted between the driving substrate and the color filter substrate.

[0007] In some embodiments, the step of incidenting a first welding laser on the first welding area from a side of the driving substrate away from the color filter substrate so that the first welding area is partially melted between the driving substrate and the color filter substrate also includes: a first focal area of ​​the first welding laser covers at least a portion of the first welding area; the step of incidenting a first welding laser on the first welding area from a side of the driving substrate away from the color filter substrate so that the first welding area is partially melted between the driving substrate and the color filter substrate also includes: a second focal area of ​​the second welding laser covers at least a portion of the second welding area; wherein the first focal area and the second focal area at least partially overlap, so that the melted portion of the first welding area contacts the melted portion of the second welding area.

[0008] In some embodiments, the step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area includes: incidenting a first welding laser to the first welding area from the side end surface extending in the spacing direction of the driving substrate; incidenting a second welding laser to the second welding area from the side end surface extending in the spacing direction of the color film substrate.

[0009] In some embodiments, before the step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area, the manufacturing method of the display panel further includes: setting glass glue between the driving substrate and the color film substrate; wherein the glass glue is in contact with the first welding area and the second welding area, respectively, so that the glass glue receives the laser beam and melts to the first welding area and the second welding area.

[0010] In some embodiments, the step of providing a panel to be welded also includes: providing a driving substrate, the driving substrate including a first substrate and a first film layer, the first film layer being arranged on the side of the first substrate facing the color filter substrate; wherein the first film layer is arranged within an area surrounded by a boundary of a side of the first welding area close to the liquid crystal layer, so that the first substrate is exposed on the side of the driving substrate facing the color filter substrate through the first welding area.

[0011] In some embodiments, the step of providing a panel to be welded also includes: providing a color filter driving substrate, the color filter substrate including a second substrate and a second film layer, the second film layer being arranged on the side of the second substrate facing the driving substrate; wherein the second film layer is arranged within an area surrounded by a boundary of a side of the second welding area close to the liquid crystal layer, so that the second substrate is exposed on the side of the color filter substrate facing the driving substrate through the second welding area.

[0012] In some embodiments, the step of providing a panel to be welded also includes: providing a panel to be welded, the panel to be welded also includes an adhesive, the adhesive is located between the driving substrate and the color filter substrate, and between the first welding area and the liquid crystal layer, and between the second welding area and the liquid crystal layer.

[0013] In order to solve the above problems, the present application also provides a display panel, which is manufactured by the above-mentioned display panel manufacturing method.

[0014] To solve the above problems, the present application also provides a display device, which includes the above display panel.

[0015] Compared to the prior art, the manufacturing method of a display panel of the present application includes: providing a panel to be welded, wherein the panel to be welded includes a driver substrate, a color filter substrate, and a liquid crystal layer, the driver substrate and the color filter substrate being spaced apart relative to each other, the liquid crystal layer being located between the driver substrate and the color filter substrate, the driver substrate having a first welding region surrounding the liquid crystal layer, and the color filter substrate having a second welding region surrounding the liquid crystal layer; and incidenting a laser beam from the outside of the panel to be welded onto the first welding region or the second welding region, causing the first welding region or the second welding region to partially melt between the driver substrate and the color filter substrate to fix the driver substrate and the color filter substrate, wherein the emission direction of the laser beam is oblique to the spacing direction of the driver substrate and the color filter substrate. According to the above embodiment, the laser beam is incident from the outside of the panel to be welded onto the first welding region or the second welding region, and the emission direction of the laser beam is oblique to the spacing direction of the driver substrate and the color filter substrate, thereby eliminating the need for the laser beam to penetrate the edge portions of the color filter substrate and the driver substrate, alleviating the risk of insufficient melting of the driver substrate and the color filter substrate due to decreased laser energy, improving the welding stability of the driver substrate and the color filter substrate, and thereby improving the waterproof performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 is a schematic structural diagram of a display device according to one or more embodiments of the present application;

[0018] Figure 2 is a first structural schematic diagram of a display panel according to one or more embodiments of the present application;

[0019] Figure 3 is a first flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application;

[0020] Figure 4 is a schematic structural diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0021] Figure 5is a second schematic flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application;

[0022] Figure 6 is a second structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0023] Figure 7 is a third schematic flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application;

[0024] Figure 8 is a third structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0025] Figure 9 is a fourth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0026] Figure 10 is a fifth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0027] Figure 11 is a sixth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application;

[0028] Figure 12 This is a seventh structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0029] Reference numerals: display device 1; display panel 2; panel to be welded 3; driving substrate 10; first substrate 11; first film layer 12; first welding area 13; liquid crystal layer 20; color filter substrate 30; second substrate 31; second film layer 32; second welding area 33; laser beam 40; first welding laser 41; first focal area 411; second welding laser 42; second focal area 421; glass glue 50; adhesive glue 60; spacing direction x1. DETAILED DESCRIPTION

[0030] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0032] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0033] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0038] With the continuous development of the industry, the application scenarios of display panels are becoming increasingly diverse. Different application scenarios have different requirements for display panels. For example, the driving substrate and color film substrate of the display panel can be laser welded to improve the anti-peeling and waterproof performance of the display panel.

[0039] At present, existing welding lasers are usually incident in a direction perpendicular to the display panel to weld the display panel. The optical path of the welding laser needs to completely penetrate the edge parts of the color filter substrate and the driving substrate, which leads to a decrease in laser energy. The driving substrate and the color filter substrate are difficult to be fully melted, which in turn leads to loose welding and the risk of reduced anti-peeling performance of the display panel.

[0040] The present application provides a display device, which may include but is not limited to mobile phones, tablets, laptops, televisions, desktops, terminals, interactive displays, digital audio and video equipment, Internet of Things devices, and the like. Interactive displays may include interactive whiteboards, interactive digital advertising screens, and interactive game displays, and the like. Internet of Things devices may include smart home devices and smart wearable devices, and the like. The display device may include a display panel, which may provide a display interface and touch input to implement corresponding functions.

[0041] Please refer to Figure 1 , Figure 1 is a schematic structural diagram of a display device according to one or more embodiments of the present application.

[0042] The display device 1 can be an ordinary mobile phone, a feature phone or a smart phone. The smart phone can be a flat-screen phone, a curved-screen phone or a foldable phone, etc. The display device 1 is provided with a display panel 2, which can be provided at the head, middle or tail of the display device 1. The display panel 2 can be used to display information of the display device 1. For example, the display panel 2 can serve as the visual information display part of the display device 1. The display panel 2 can also serve as a touch information input part, which is used to facilitate the user to operate the display device 1 by touching the display panel 2, for example, for display and input requirements during interface navigation and function switching of the display device 1. The display device 1 can also include an outer shell, and the display panel 2 is installed in the outer shell. The outer shell can protect the display panel 2 and reduce the risk of damage to the display panel 2 by external force.

[0043] Please refer to Figure 2 , Figure 2 3 is a first structural diagram of a display panel according to one or more embodiments of the present application.

[0044] In order to solve the above problems, the present application provides a display panel 2, which can be used to display images, etc. The display panel 2 is prepared by the above-mentioned display panel manufacturing method.

[0045] Please refer to Figure 3-Figure 4 , Figure 3 is a first flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application; Figure 4 This is a first structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0046] To solve the above problems, the present application provides a method for manufacturing a display panel 2, which includes the following steps:

[0047] Step S11: providing a panel to be welded, wherein the panel to be welded includes a driving substrate, a color filter substrate and a liquid crystal layer, the driving substrate and the color filter substrate are relatively spaced apart, the liquid crystal layer is located between the driving substrate and the color filter substrate, the driving substrate has a first welding area surrounding the liquid crystal layer, and the color filter substrate has a second welding area surrounding the liquid crystal layer.

[0048] The panel 3 to be welded includes a drive substrate 10, a color filter substrate 30, and a liquid crystal layer 20. The drive substrate 10 can be used to drive the liquid crystal layer 20 for display. Specifically, the drive substrate 10 includes a base substrate and a drive electrode layer located on the base substrate. The liquid crystal layer 20 can be electrically connected to the drive electrode layer to drive the liquid crystal layer 20 for display. The base substrate can be made of a hard material such as glass, so that it can support the drive electrode layer. The color filter substrate 30 can be used to filter light within a specific wavelength range to adjust the color displayed by the display panel 2. Specifically, the color filter substrate 30 includes a base substrate and a color filter located on the base substrate. The liquid crystal layer 20 can be arranged corresponding to the color filter to filter light within a specific wavelength range. The base substrate can be made of a hard material such as glass, so that it can support the color filter. The liquid crystal layer 20 can include liquid crystal and functional layers that assist the operation of the liquid crystal. The driving substrate 10 has two opposite main surfaces, and the color filter substrate 30 also has two opposite main surfaces. The liquid crystal layer 20 can be simultaneously disposed on the opposite main surfaces of the driving substrate 10 and the color filter substrate 30 .

[0049] The first welding region 13 may not require a corresponding electrode layer, or the electrode layer arranged in the first welding region 13 will not interfere with the driving electrode layer corresponding to the liquid crystal layer 20. Therefore, when the first welded portion is formed in the first welding region 13, the driving electrode layer corresponding to the liquid crystal layer 20 will not be affected, that is, the display effect of the display panel 2 will not be affected. The second welding region 33 may not require a corresponding color filter film, or the color filter film arranged in the second welding region 33 will not interfere with the color filter film corresponding to the liquid crystal layer 20. Therefore, when the second welded portion is formed in the second welding region 33, the color filter layer corresponding to the liquid crystal layer 20 will not be affected, that is, the display effect of the display panel 2 will not be affected.

[0050] Step S12: A laser beam is incident from the outside of the panel to be welded to the first welding area or the second welding area, so that the first welding area or the second welding area is partially melted between the driving substrate and the color filter substrate to fix the driving substrate and the color filter substrate, wherein the emission direction of the laser beam is oblique to the spacing direction between the driving substrate and the color filter substrate.

[0051] The laser beam 40 can be emitted by a laser. For example, the driving substrate 10 and the color filter substrate 30 can both be glass substrates. The laser beam 40 can be emitted by a femtosecond laser and the glass surface can be scanned by a long focal length focusing lens. The driving substrate 10 and the color filter substrate 30 absorb the energy of the laser beam 40 and melt. The laser beam 40 can be incident on at least one of the first welding area 13 and the second welding area 33, so that the first welding area 13 and the second welding area 33 are partially melted between the driving substrate 10 and the color filter substrate 30, thereby facilitating the welding and fixation of the driving substrate 10 and the color filter substrate 30. It is understood that the emission direction of the laser beam 40 is obliquely intersected with the spacing direction x1 between the drive substrate 10 and the color filter substrate 30. The laser beam 40 may be incident at an angle from the side of the drive substrate 10 and the color filter substrate 30. For example, the laser beam 40 may be incident at an angle from the color filter substrate 30 to the drive substrate 10, or the laser beam 40 may be incident at an angle from the drive substrate 10 to the color filter substrate 30. This eliminates the need for the laser beam 40 to fully penetrate the edge portions of the color filter substrate 30 and the drive substrate 10, alleviating the risk of insufficient melting of the drive substrate 10 and the color filter substrate 30 due to decreased laser energy. This improves the welding stability of the drive substrate 10 and the color filter substrate 30, thereby enhancing the waterproof performance of the display panel 2.

[0052] Through the above embodiment, the laser beam 40 is incident on the first welding area 13 or the second welding area 33 from the outside of the panel 3 to be welded, and the emission direction of the laser beam 40 is obliquely intersected with the spacing direction x1 between the driving substrate 10 and the color filter substrate 30, so that the laser beam 40 does not need to penetrate the edge portions of the color filter substrate 30 and the driving substrate 10, thereby alleviating the risk of the driving substrate 10 and the color filter substrate 30 being difficult to fully melt due to the decrease in laser energy, improving the welding stability of the driving substrate 10 and the color filter substrate 30, and thereby improving the waterproof performance of the display panel 2.

[0053] Combine Figure 5-Figure 6 , Figure 5 is a second schematic flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application; Figure 6 3 is a second structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0054] In some embodiments, step S12 includes: step S121: irradiating a first welding laser onto a first welding region from a side of the driver substrate facing away from the color filter substrate, so that the first welding region is partially melted between the driver substrate and the color filter substrate. step S122: irradiating a second welding laser onto a second welding region from a side of the color filter substrate facing away from the driver substrate, so that the second welding region is partially melted between the driver substrate and the color filter substrate. Specifically, the first welding laser 41 can be used to melt part of the first welding area 13, and the second welding laser 42 can be used to melt part of the second welding area 33. It should be noted that it is not limited to that the first welding laser 41 can only be used to melt part of the first welding area 13, and the second welding laser 42 can only be used to melt part of the second welding area 33, but it means that the first welding area 13 can be fully melted when it only receives the energy of the first welding laser 41, and the second welding area 33 can be fully melted when it only receives the energy of the second welding laser 42. In some application scenarios, the first welding area 13 can simultaneously receive the energy of the first welding laser 41 and the energy of the second welding laser 42, and the second welding area 33 can simultaneously receive the energy of the second welding laser 42 and the energy of the first welding laser 41, thereby further alleviating the risk of insufficient melting of the first welding area 13 and the second welding area 33. The first welding laser 41 is incident from the side of the driving substrate 10 facing away from the color filter substrate 30, and the second welding laser 42 is incident from the side of the color filter substrate 30 facing away from the driving substrate 10. This makes it easier for the first welding area 13 and the second welding area 33 to receive the energy of the laser beam 40 more evenly. Compared with the case where the laser beam 40 is incident from a single direction, the risk of insufficient melting of one of the first welding area 13 and the second welding area 33 located downstream of the laser beam 40 is further alleviated, thereby improving the welding stability of the driving substrate 10 and the color filter substrate 30.

[0055] Combine Figure 7-Figure 8 , Figure 7 is a third schematic flow chart of a method for manufacturing a display panel according to one or more embodiments of the present application; Figure 8 3 is a schematic diagram of the third structure of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0056] In some embodiments, step S121 further includes: a first focal region 411 of the first welding laser 41 covers at least a portion of the first welding region 13. Step S122 further includes: a second focal region 421 of the second welding laser 42 covers at least a portion of the second welding region 33; wherein the first focal region 411 and the second focal region 421 at least partially overlap, so that the melted portion of the first welding region 13 contacts the melted portion of the second welding region 33. The first focal region 411 may refer to the focal depth range of the first welding laser 41, that is, the area near the focal point of the first welding laser 41 that can provide sufficient energy to the first welding region 13 to fully melt the first welding region 13. Specifically, the first welding laser 41 can provide energy to the first welding region 13, thereby causing a portion of the first welding region 13 to melt and extend in a molten state between the driver substrate 10 and the color filter substrate 30. In some application scenarios, the length of the first focal region 411 in the axial direction of the first welding laser 41 may be less than or equal to the spacing between the driver substrate 10 and the color filter substrate 30. For example, the length of the first focal region 411 in the axial direction of the first welding laser 41 is 3 μm, and the spacing between the driver substrate 10 and the color filter substrate 30 is between 3 μm and 5 μm. The first focal region 411 covers at least a portion of the first welding region 13 and a portion of the spacing between the driver substrate 10 and the color filter substrate 30. The second focal region 421 may refer to the focal depth range of the second welding laser 42, that is, the area near the focal point of the second welding laser 42 that can provide sufficient energy to the second welding region 33 to fully melt the second welding region 33. Specifically, the second welding laser 42 can provide energy to the second welding region 33, thereby causing a portion of the second welding region 33 to melt and extend in a molten state between the driver substrate 10 and the color filter substrate 30. In some application scenarios, the length of the second focal region 421 in the axial direction of the second welding laser 42 can be less than or equal to the spacing between the driver substrate 10 and the color filter substrate 30. For example, the length of the second focal region 421 in the axial direction of the second welding laser 42 is 3 μm, and the spacing between the driver substrate 10 and the color filter substrate 30 is between 3 μm and 5 μm. The second focal region 421 covers at least a portion of the second welding region 33 and a portion of the spacing between the driver substrate 10 and the color filter substrate 30. The first focal region 411 and the second focal region 421 at least partially overlap, allowing the melted material in the first focal region 411 and the second focal region 421 to contact at the intersection of the first focal region 411 and the second focal region 421, thereby welding and securing the color filter substrate 30 to the driver substrate 10. This facilitates sufficient melting of the color filter substrate 30 and the driver substrate 10 and improves the welding stability of the color filter substrate 30 and the driver substrate 10.It should be noted that the second welding laser 42 can be incident at the same time as the first welding laser 41, so as to facilitate the welding and fixing of part of the first welding area 13 and part of the second welding area 33 in a molten state, further improving the welding stability of the driving substrate 10 and the color filter substrate 30.

[0057] In some embodiments, step S12 further includes: step S123: directing a first welding laser beam toward the first welding region from a side surface of the drive substrate extending in the spacing direction. Step S124: directing a second welding laser beam toward the second welding region from a side surface of the color filter substrate extending in the spacing direction. The side surface of the drive substrate 10 refers to the side surface connecting the two main surfaces of the drive substrate 10 that are oppositely disposed in the spacing direction x1. It will be appreciated that the first welding laser beam 41 is incident on the first welding region 13 through the side surface of the drive substrate 10, reducing the optical path of the first welding laser beam 41 in the thickness direction of the drive substrate 10. This eliminates the need for the first welding laser beam 41 to penetrate the entire thickness of the drive substrate 10, mitigating the risk of insufficient melting of the drive substrate 10 due to decreased laser energy. The side surface of the color filter substrate 30 refers to the side surface connecting the two main surfaces of the color filter substrate 30 that are oppositely disposed in the spacing direction x1. As can be understood, the second welding laser 42 is incident on the second welding region 33 through the side surface of the color filter substrate 30. This reduces the optical path of the second welding laser 42 in the thickness direction of the color filter substrate 30, eliminating the need for the first welding laser 41 to penetrate the entire thickness of the color filter substrate 30. This mitigates the risk of insufficient melting of the driver substrate 10 due to decreased laser energy. Thus, the interaction between the first welding laser 41 and the second welding laser 42 further fully melts the first welding region 13 and the second welding region 33, thereby improving the welding stability between the color filter substrate 30 and the driver substrate 10.

[0058] Combine Figure 9 , Figure 9 This is a fourth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0059] In some embodiments, before step S12, the method for manufacturing the display panel 2 further includes: step S13: placing glass glue 50 between the driver substrate 10 and the color filter substrate 30; wherein the glass glue 50 contacts the first welding region 13 and the second welding region 33, respectively, so that the glass glue 50 receives the laser beam 40 and melts to the first welding region 13 and the second welding region 33. Under the action of the laser beam 40, the glass glue 50 melts and is welded to the first welding region 13 and the second welding region 33, respectively. The glass glue 50 may be a mixture of glass powder, glass glue powder, a solubilizer, and a dispersant uniformly mixed in a certain proportion. For example, the ratio of glass powder, glass glue powder, solubilizer, and dispersant may be 10:5:4:1. In some application scenarios, the glass glue 50 may be pre-baked and cured before step S12. For example, the glass glue 50 may be pre-baked at a temperature between 75°C and 85°C for 5 to 10 minutes, and more specifically, at 80°C for 8 minutes. The glass glue 50 can be cured at a temperature between 140°C and 160°C for 50 to 70 minutes, and more specifically, at 150°C for 60 minutes. Thus, the glass glue 50 can further improve the welding stability between the drive substrate 10 and the color filter substrate 30, thereby enhancing the waterproof performance of the display panel 2.

[0060] Combine Figure 10-11 , Figure 10 is a fifth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application; Figure 11 This is a sixth structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0061] In some embodiments, step S11 further includes providing a drive substrate 10, wherein the drive substrate 10 includes a first substrate 11 and a first film layer 12, wherein the first film layer 12 is disposed on the side of the first substrate 11 facing the color filter substrate 30. The first film layer 12 is disposed within an area surrounded by a boundary of a first welding region 13 on a side proximal to the liquid crystal layer 20, such that the first substrate 11 is exposed on the side of the drive substrate 10 facing the color filter substrate 30 through the first welding region 13. The first substrate 11 may be a glass substrate, and the first film layer 12 may be a functional film layer such as a drive electrode layer or a drive circuit layer for driving the liquid crystal layer 20 to display an image. It is understood that the first welding region 13 may have at least one boundary proximal to the liquid crystal layer 20 and one boundary distal to the liquid crystal layer 20. In some applications, the boundary of the first welding region 13 on the side proximal to the liquid crystal layer 20 and the boundary distal to the liquid crystal layer 20 jointly define the scope of the first welding region 13. The first film layer 12 is arranged within the area surrounded by the boundary of the first welding area 13 on one side close to the liquid crystal layer 20. It can be understood that the first film layer 12 can be arranged corresponding to the liquid crystal layer 20, or the first film layer 12 can also be arranged between the liquid crystal layer 20 and the first welding area 13, that is, the first film layer 12 is not arranged in the first welding area 13, so that the first substrate 11 is exposed on the side of the driving substrate 10 facing the color filter substrate 30 through the first welding area 13, and thus the first welding laser 41 does not need to pass through the first film layer 12, further reducing the thickness of the driving substrate 10 that the first welding laser 41 needs to penetrate, alleviating the risk of insufficient melting of the driving substrate 10 due to energy attenuation of the first welding laser 41, and improving the welding stability between the driving substrate 10 and the color filter substrate 30.

[0062] In some embodiments, step S11 further includes providing a color filter driver substrate 10, wherein the color filter substrate 30 includes a second substrate 31 and a second film layer 32, wherein the second film layer 32 is disposed on the side of the second substrate 31 facing the driver substrate 10. The second film layer 32 is disposed within an area surrounded by a side boundary of a second welding region 33 proximal to the liquid crystal layer 20, such that the second substrate 31 is exposed on the side of the color filter substrate 30 facing the driver substrate 10 through the second welding region 33. The second substrate 31 may be a glass substrate, and the second film layer 32 may be a functional film layer such as a color filter for filtering light beams of different wavelengths. It is understood that the second welding region 33 may have at least one side boundary proximal to the liquid crystal layer 20 and one side boundary distal to the liquid crystal layer 20. In some applications, the side boundary of the second welding region 33 proximal to the liquid crystal layer 20 and the side boundary distal to the liquid crystal layer 20 jointly define the scope of the second welding region 33. The second film layer 32 is arranged within the area surrounded by the boundary of the second welding area 33 on one side close to the liquid crystal layer 20. It can be understood that the second film layer 32 can be arranged corresponding to the liquid crystal layer 20, or the second film layer 32 can also be arranged between the liquid crystal layer 20 and the second welding area 33, that is, the second film layer 32 is not arranged in the second welding area 33, so that the second substrate 31 is exposed on the side of the color filter substrate 30 facing the drive substrate 10 through the second welding area 33, and thus the second welding laser 42 does not need to pass through the second film layer 32, further reducing the thickness of the color filter substrate 30 that the second welding laser 42 needs to penetrate, alleviating the risk of insufficient melting of the color filter substrate 30 due to energy attenuation of the second welding laser 42, and improving the welding stability between the drive substrate 10 and the color filter substrate 30.

[0063] Combine Figure 12 , Figure 12 This is a seventh structural schematic diagram of a panel to be welded of a display panel according to one or more embodiments of the present application.

[0064] In some embodiments, step S11 further includes providing a panel 3 to be welded, wherein the panel 3 to be welded further includes adhesive 60. The adhesive 60 is positioned between the driver substrate 10 and the color filter substrate 30, and between the first welding region 13 and the liquid crystal layer 20, and between the second welding region 33 and the liquid crystal layer 20. The adhesive 60 has adhesive properties and may include, but is not limited to, acrylic adhesives, epoxy resin adhesives, polyurethane adhesives, silicone adhesives, and the like. The adhesive 60 may be disposed around the liquid crystal layer 20 and may simultaneously contact two opposing major surfaces of the driver substrate 10 and the color filter substrate 30. The adhesive 60 thereby bonds the driver substrate 10 and the color filter substrate 30 together, improving the connection stability between the driver substrate 10 and the color filter substrate 30. The adhesive 60 may also, to a certain extent, prevent external factors, such as water vapor, from entering the liquid crystal layer 20. These external factors include, but are not limited to, water vapor, dust, and impurities, thereby improving the waterproof performance of the display panel 2.

[0065] In summary, the manufacturing method of the display panel 2 of the present application includes: providing a panel 3 to be welded, wherein the panel 3 to be welded includes a driving substrate 10, a color filter substrate 30 and a liquid crystal layer 20, the driving substrate 10 and the color filter substrate 30 are arranged relative to each other, the liquid crystal layer 20 is located between the driving substrate 10 and the color filter substrate 30, the driving substrate 10 has a first welding area 13 surrounding the liquid crystal layer 20, and the color filter substrate 30 has a second welding area 33 surrounding the liquid crystal layer 20; incident a laser beam 40 from the outside of the panel 3 to be welded to the first welding area 13 or the second welding area 33, so that the first welding area 13 or the second welding area 33 is partially melted between the driving substrate 10 and the color filter substrate 30 to fix the driving substrate 10 and the color filter substrate 30, wherein the emission direction of the laser beam 40 is oblique to the spacing direction x1 between the driving substrate 10 and the color filter substrate 30. Through the above embodiment, the laser beam 40 is incident on the first welding area 13 or the second welding area 33 from the outside of the panel 3 to be welded, and the emission direction of the laser beam 40 is obliquely intersected with the spacing direction x1 between the driving substrate 10 and the color filter substrate 30, so that the laser beam 40 does not need to penetrate the edge portions of the color filter substrate 30 and the driving substrate 10, thereby alleviating the risk of the driving substrate 10 and the color filter substrate 30 being difficult to fully melt due to the decrease in laser energy, improving the welding stability of the driving substrate 10 and the color filter substrate 30, and thereby improving the waterproof performance of the display panel 2.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A method for manufacturing a display panel, characterized in that: The manufacturing method of the display panel includes: A panel to be welded is provided, wherein the panel to be welded comprises a driving substrate, a color filter substrate, and a liquid crystal layer, the driving substrate and the color filter substrate are spaced apart from each other, the liquid crystal layer is located between the driving substrate and the color filter substrate, the driving substrate has a first welding area surrounding the liquid crystal layer, and the color filter substrate has a second welding area surrounding the liquid crystal layer; A laser beam is incident from the outside of the panel to be welded to the first welding area or the second welding area, so that the first welding area or the second welding area is partially melted between the driving substrate and the color filter substrate to fix the driving substrate and the color filter substrate, wherein the emission direction of the laser beam is oblique to the spacing direction between the driving substrate and the color filter substrate.

2. The method for manufacturing a display panel according to claim 1, wherein: The step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area includes: irradiating the first welding region with a first welding laser from a side of the driving substrate facing away from the color filter substrate, so that the first welding region is partially melted between the driving substrate and the color filter substrate; A second welding laser is incident on the second welding region from a side of the color filter substrate away from the driving substrate, so that the second welding region is partially melted between the driving substrate and the color filter substrate.

3. The method for manufacturing a display panel according to claim 2, wherein: The step of irradiating the first welding laser onto the first welding region from a side of the driving substrate facing away from the color filter substrate so as to partially melt the first welding region between the driving substrate and the color filter substrate further comprises: The first focal region of the first welding laser covers at least a portion of the first welding region; The step of irradiating a first welding laser onto the first welding region from a side of the driving substrate facing away from the color filter substrate so as to partially melt the first welding region between the driving substrate and the color filter substrate further includes: The second focal region of the second welding laser covers at least a portion of the second welding region; The first focal region and the second focal region at least partially overlap, so that a melted portion of the first welding region contacts a melted portion of the second welding region.

4. The method for manufacturing a display panel according to claim 1, wherein: The step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area includes: The first welding laser is incident on the first welding region from a side end surface of the drive substrate extending in the spacing direction; The second welding laser is incident on the second welding region from a side end surface of the color filter substrate extending in the spacing direction.

5. The method for manufacturing a display panel according to claim 1, wherein: Before the step of incidenting a laser beam from the outside of the panel to be welded to the first welding area or the second welding area, the method for manufacturing a display panel further includes: Disposing glass glue between the driving substrate and the color filter substrate; The glass glue is in contact with the first welding area and the second welding area respectively, so that the glass glue receives the laser beam and melts to the first welding area and the second welding area.

6. The method for manufacturing a display panel according to claim 1, wherein: The step of providing the panel to be welded also includes: Providing a driving substrate, the driving substrate comprising a first substrate and a first film layer, wherein the first film layer is disposed on a side of the first substrate facing the color filter substrate; The first film layer is arranged within an area surrounded by a boundary of the first welding area close to the liquid crystal layer, so that the first substrate is exposed on a side of the driving substrate facing the color filter substrate through the first welding area.

7. The method for manufacturing a display panel according to claim 6, wherein: The step of providing the panel to be welded also includes: Providing a color filter driving substrate, the color filter substrate comprising a second substrate and a second film layer, wherein the second film layer is arranged on a side of the second substrate facing the driving substrate; The second film layer is arranged within an area surrounded by a boundary of the second welding area close to the liquid crystal layer, so that the second substrate is exposed on a side of the color filter substrate facing the driving substrate through the second welding area.

8. The method for manufacturing a display panel according to claim 1, wherein: The step of providing the panel to be welded also includes: The panel to be welded is provided, and the panel to be welded further includes adhesive. The adhesive is located between the driving substrate and the color filter substrate, between the first welding area and the liquid crystal layer, and between the second welding area and the liquid crystal layer.

9. A display panel, characterized in that: The display panel is manufactured by the method for manufacturing a display panel according to any one of claims 1 to 8.

10. A display device, characterized in that: The display device includes the display panel according to claim 9.

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