Preparation method of display panel, display panel and electronic equipment

Abstract

The invention discloses a preparation method of a display panel, the display panel and electronic equipment. The preparation method comprises the steps that a display panel is provided, the display panel comprises a liquid crystal layer and two layers of welding substrates, each layer of welding substrate comprises a welding area and a driving area, the liquid crystal layer is clamped between the driving areas of the two layers of welding substrates, and the welding areas of the two layers of welding substrates are correspondingly arranged; and first laser pulses are conducted on the current welding point position in the welding area, deviating from the side of the other welding substrate, of one welding substrate for many times, so that the two welding areas are fixed after being partially melted under the action of the first laser pulses corresponding to the current welding point position. Therefore, the two layers of welding substrates are fixed after being melted through energy accumulated by the first laser pulses for many times, the risk that the welding substrates crack is reduced, a better welding effect is achieved, and the anti-falling strength of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a method for preparing a display panel, a display panel and an electronic device. Background Art

[0002] With the rise of smart homes and smart supermarkets, LCD products have entered people's lives and work in large numbers and are widely used in mobile phones, personal digital assistants, computers, televisions, etc. With the widespread application of LCD products, higher requirements have been put forward for LCD products.

[0003] At present, liquid crystal display panels have begun to be continuously developed and innovated, and many narrow-border products have been produced. The increasingly narrow borders require extreme design changes to the previous panel structure, resulting in a decrease in the anti-falling strength of the liquid crystal panel. Therefore, how to effectively improve the anti-falling strength of narrow-border products is particularly important. Summary of the invention

[0004] The main purpose of the present application is to provide a method for manufacturing a display panel, a display panel and an electronic 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 preparing a display panel, the preparation method comprising: providing a display panel, wherein the display panel comprises a liquid crystal layer and two layers of welding substrates, each layer of the welding substrate comprises a welding area and a driving area, the liquid crystal layer is sandwiched between the driving areas of the two layers of the welding substrates, and the welding areas of the two layers of the welding substrates are correspondingly arranged; performing multiple first laser pulses on a current welding point in the welding area on a side of one of the welding substrates away from the other welding substrate, so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the multiple first laser pulses.

[0006] In some embodiments, after the step of performing multiple first laser pulses on a current welding point in the welding area on a side of the welding substrate facing away from the other welding substrate, the preparation method includes: adjusting the relative position of the welding laser and the welding area so that the welding laser corresponds to a next welding point, wherein the next welding point and the current welding point correspond to different positions of the welding area; taking the next welding point as the current welding point, and returning to the step of performing multiple first laser pulses on the current welding point in the welding area on a side of the welding substrate facing away from the other welding substrate until a welding track surrounding the liquid crystal layer is formed.

[0007] In some embodiments, after the step of forming a welding track surrounding the liquid crystal layer, the preparation method further includes: adjusting the relative position of the welding laser and the welding area according to the welding track; in the process of adjusting the relative position of the welding laser and the welding area, performing at least one second laser pulse to welding points at different positions in the welding track, wherein the power of the first laser pulse is less than the power of the second laser pulse.

[0008] In some embodiments, the current welding location and the next welding location at least partially overlap.

[0009] In some embodiments, the preparation method includes: adjusting the incident angle of the welding laser to the scanning galvanometer to change the shape of the welding laser incident on the current welding point, wherein the scanning galvanometer is located on the optical path of the welding laser.

[0010] In some embodiments, before the step of performing multiple first laser pulses at a current welding point in the welding area on a side of one welding substrate facing away from the other welding substrate, the preparation method includes: performing a third laser pulse at a predetermined welding point in the welding area of ​​one welding substrate facing away from the other welding substrate, so that the two welding areas corresponding to the predetermined welding points are partially melted and fixed under the action of the third laser pulse, wherein the predetermined welding point and the current welding point correspond to different positions of the welding area, and the power of the first laser pulse is less than the power of the third laser pulse.

[0011] In some embodiments, the power of the third laser pulse is 1.3 to 12 times the power of the first laser pulse.

[0012] In some embodiments, the step of performing multiple first laser pulses to the current welding point in the welding area on the side of one welding substrate away from the other welding substrate so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the multiple first laser pulses includes: performing at least one fourth laser pulse to the current welding point in the welding area on the side of one welding substrate away from the other welding substrate; performing at least one fifth laser pulse to the current welding point so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the fifth laser pulse, wherein the power of the fourth laser pulse is less than the power of the fifth laser pulse.

[0013] In order to solve the above problems, the present application provides a display panel, and the display panel is prepared by the above-mentioned preparation method.

[0014] In order to solve the above problems, the present application provides an electronic device, which includes the display panel as described above.

[0015] Compared with the prior art, the manufacturing method of the display panel of the present application includes: providing a display panel, wherein the display panel includes a liquid crystal layer and two layers of welding substrates, each layer of welding substrate includes a welding area and a driving area, the liquid crystal layer is sandwiched between the driving areas of the two layers of welding substrates, and the welding areas of the two layers of welding substrates are correspondingly arranged; performing multiple first laser pulses on the current welding point in the welding area of ​​one welding substrate away from the other welding substrate, so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of multiple first laser pulses. Through the above-mentioned embodiment, multiple first laser pulses are performed on the current welding point in the welding area of ​​one welding substrate away from the other welding substrate. Compared with the laser pulses with fewer times and larger energy, the laser can gradually penetrate the welding substrate, and the energy accumulated by multiple first laser pulses can be used to melt and fix the two layers of welding substrates, thereby reducing the risk of cracks in the welding substrate, thereby achieving a better welding effect, and the two welding areas corresponding to the current welding point are partially melted and fixed under the action of multiple first laser pulses, which can improve the fixing effect of the two layers of welding substrates and enhance the anti-detachment strength 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 drawings required for use in the embodiments will be briefly introduced below. 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 paying creative work.

[0017] Figure 1 It is a schematic flow chart of an embodiment of a method for manufacturing a display panel provided in the present application;

[0018] Figure 2 is a schematic structural diagram of an embodiment of a display panel provided by the present application;

[0019] Figure 3 yes Figure 2 A schematic diagram of the top view structure of the display panel shown;

[0020] Figure 4 It is a structural schematic diagram of an embodiment of a welding display panel provided by the present application;

[0021] Figure 5 yes Figure 1 A schematic diagram of a flow chart of an embodiment after step S102;

[0022] Figure 6 yes Figure 1A schematic flow chart of an embodiment of step S102;

[0023] Figure 7 It is a schematic diagram of the structure of an embodiment of an electronic device provided by the present application. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] 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).

[0030] 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. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] With the rise of smart homes and smart supermarkets, LCD products have entered people's lives and work in large numbers and are widely used in mobile phones, personal digital assistants, computers, televisions, etc. With the widespread application of LCD products, higher requirements have been put forward for LCD products.

[0033] At present, liquid crystal display panels have begun to be continuously developed and innovated, and many narrow-border products have been produced. The increasingly narrow borders require extreme design changes to the previous panel structure, resulting in a decrease in the anti-falling strength of the liquid crystal panel. Therefore, how to effectively improve the anti-falling strength of narrow-border products is particularly important.

[0034] In order to solve the technical problems existing in the related art, the present application provides a method for preparing a display panel, see Figure 1 , Figure 1 It is a schematic flow chart of an embodiment of a method for manufacturing a display panel provided in the present application, which specifically includes the following steps S101 to S102.

[0035] Step S101: providing a display panel.

[0036] Can be combined Figure 2 and Figure 3 , Figure 2 is a schematic structural diagram of an embodiment of a display panel 10 provided in the present application, Figure 3 yes Figure 2 The schematic diagram of the structure of the display panel 10 is shown in a top view.

[0037] The display panel 10 includes a liquid crystal layer 200 and two layers of welding substrates 100, each layer of welding substrates 100 includes a welding area 111 and a driving area 112, and the liquid crystal layer 200 is sandwiched between the driving areas 112 of the two layers of welding substrates 100, and the welding areas 111 of the two layers of welding substrates 100 are arranged correspondingly. One of the welding substrates 100 can be a driving substrate, and the other can be a color filter substrate. The driving substrate can include a base substrate and a driving electrode, and the driving electrode is located on the base substrate. The driving electrode can be used to drive the liquid crystal molecules in the liquid crystal layer 200 to deflect. The color filter substrate can be used to filter light of a specific wavelength, so as to adjust the display screen of the display panel 10. For example, the color filter substrate may include a base substrate, a color filter and a driving electrode, and the color filter is located on the base substrate. The color filter may include filtering areas of three colors: red, green and blue. The base substrate may be made of hard materials such as glass, ceramics, sapphire, etc., so that the driving electrode can be carried by the base substrate. The welding substrate 100 can be divided into a driving area 112 and a welding area 111. The driving area 112 can be arranged adjacent to the welding area 111. For example, the driving area 112 can be located on one side of the welding area 111, or the welding area 111 can be ring-shaped so that the welding area 111 is arranged around the driving area 112.

[0038] The liquid crystal layer 200 includes liquid crystal molecules, and the liquid crystal molecules can be deflected in the liquid crystal layer 200. In this embodiment, both layers of the welding substrate 100 can include driving electrodes, and the driving electrodes are located in the driving area 112 of the welding substrate 100 where they are located. The liquid crystal layer 200 is located between the two layers of driving electrodes, and the liquid crystal molecules in the liquid crystal layer 200 can be driven to deflect by the two layers of driving electrodes, so as to achieve the purpose of changing the display screen of the display panel 10. The welding areas 111 of the two layers of welding substrates 100 can correspond to each other in the spacing direction of the two layers of welding substrates 100. When the two layers of welding substrates 100 need to be welded, the two layers of welding substrates 100 can be arranged oppositely and spaced apart. For example, the spacing between the two layers of welding substrates 100 can be between 3 and 5 μm, and the welding areas 111 of the two layers of welding substrates 100 correspond to each other, and then the welding areas 111 of the two layers of welding substrates 100 are welded and fixed.

[0039] Step S102: applying multiple first laser pulses to a current welding point in a welding area on a side of a welding substrate facing away from another welding substrate, so that two welding areas corresponding to the current welding point are partially melted and fixed under the action of multiple first laser pulses.

[0040] Can be combined Figure 4 , Figure 41 is a schematic diagram of the structure of an embodiment of the welding display panel 10 provided in the present application. The laser 500 can emit the welding laser 400 to the driving area 112 of one of the welding substrates 100, and the energy of the welding laser 400 can melt the parts of the two welding areas 111 to fill the gap between the two layers of welding substrates 100, so that the two layers of welding substrates 100 can be welded and fixed. The two layers of welding substrates 100 are stacked. When the display panel 10 needs to be welded, the display panel 10 can be placed on the workbench first, so that one of the welding substrates 100 is directly in contact with the work platform, and the other welding substrate 100 is away from the work platform. The laser 500 emits laser to the welding substrate 100 away from the work platform. The welding area 111 can have multiple preset welding points, and the welding point currently incident by the welding laser 400 can be defined as the current welding point 310. The welding substrate 100 at the current welding point 310 can be melted by the laser energy. In this embodiment, multiple first laser pulses are performed at the current welding point 310, that is, multiple first laser pulses act together on the current welding point 310, so that the welding substrate 100 corresponding to the current welding point 310 can be gradually melted by a first laser pulse with a smaller welding power, so that the two welding areas 111 corresponding to the current welding point 310 are partially melted and then fixed under the action of multiple first laser pulses, and because the first laser pulse can adapt to a smaller power, the weld point finally formed at the current welding point 310 is smaller, which makes it easier to show the complete appearance of the panel 10.

[0041] Through the above-mentioned implementation, multiple first laser pulses are performed on the current welding point 310 in the welding area 111 on the side of one welding substrate 100 away from the other welding substrate 100. Compared with fewer times of larger energy laser pulses, the laser can gradually penetrate the welding substrate 100, and the energy accumulated by multiple first laser pulses can jointly melt and fix the two layers of welding substrates 100, thereby reducing the risk of cracks in the welding substrate 100, thereby achieving a better welding effect. In addition, the two welding areas 111 corresponding to the current welding point 310 are partially melted and fixed under the action of multiple first laser pulses, which can improve the fixing effect of the two layers of welding substrates 100 and enhance the anti-detachment strength of the display panel 10.

[0042] In some embodiments, the preparation method includes: adjusting the incident angle of the welding laser 400 incident on the scanning galvanometer 600 to change the shape of the welding laser 400 incident on the current welding point 310, wherein the scanning galvanometer 600 is located on the optical path of the welding laser 400. The scanning galvanometer 600 can be located between the laser 500 and the display panel 10, the welding laser 400 can be incident on the scanning galvanometer 600, and then emitted from the scanning galvanometer 600 to the display panel 10, and the scanning galvanometer 600 can be used to change the shape of the welding laser 400 located on the display panel 10, for example, the shape of the welding laser 400 can be adjusted to be square, circular, elliptical, etc. through the scanning galvanometer 600. For example, the surface of the scanning galvanometer 600 used to receive the welding laser 400 can be perpendicular to the welding laser 400 in the initial state. The incident angle of the welding laser 400 incident on the scanning galvanometer 600 can be adjusted by changing the direction of the welding laser 400 or changing the position of the scanning galvanometer 600 to change the shape of the welding laser 400 incident on the current welding point 310, thereby adapting to display panels 10 of different shapes.

[0043] See also Figure 5 , Figure 5 yes Figure 1 FIG. 1 is a flow chart of an embodiment after step S102.

[0044] Step S501: adjusting the relative position of the welding laser and the welding area so that the welding laser corresponds to the next welding point, wherein the next welding point and the current welding point correspond to different positions of the welding area.

[0045] The relative position of the welding laser 400 and the welding area 111 can be adjusted by moving the display panel 10; or by moving the laser 500; or an optical element is provided between the laser 500 and the display panel 10, and the position of the welding laser 400 incident on the welding area 111 can be adjusted by the optical element, etc. Among them, the next welding point 320 and the current welding point 310 can both be preset welding points in the welding area 111, the next welding point 320 can be adjacent to the current welding point 310, or the next welding point 320 can be spaced from the current welding point 310, or the next welding point 320 can partially overlap with the current welding point 310. After the welding operation is completed at the current welding point 310 by the welding laser 400, the relative position of the welding laser 400 and the welding area 111 can be adjusted so that the welding laser 400 is focused at the next welding point 320, so as to perform the welding operation at the next welding point 320 by the welding laser 400.

[0046] Step S502: taking the next welding point as the current welding point, and returning to step: applying multiple first laser pulses to the current welding point in the welding area of ​​one welding substrate away from the other welding substrate until a welding track surrounding the liquid crystal layer is formed.

[0047] When the welding laser 400 is incident on the next welding point 320, the next welding point 320 corresponds to the welding point currently incident by the welding laser 400, and the next welding point 320 at this time becomes the current welding point 310, and then the first laser pulses can be continued multiple times at the current welding point 310, so that the two welding areas 111 corresponding to the current welding point 310 are partially melted and fixed under the action of the multiple first laser pulses. After the welding operation of the welding point is completed, the relative position of the welding laser 400 and the welding area 111 can be adjusted again, and then the welding operation is performed on other welding points, and the above steps are repeated until a welding track 300 surrounding the liquid crystal layer 200 is formed. Among them, the welding track 300 can be understood as: a weld formed by connecting multiple welding points in sequence, and the welding track 300 can be in a closed loop or open loop shape, or the welding track 300 can also be a plurality of welds, etc. Therefore, by forming the welding track 300 surrounding the liquid crystal layer 200 , the fixing effect of the two-layer welding substrate 100 can be further improved, and the anti-falling strength of the display panel 10 can be improved.

[0048] Further, the current welding point 310 and the next welding point 320 at least partially overlap. The current welding point 310 and the next welding point 320 at least partially overlap, and the welding laser 400 can be adjusted slightly to correspond to the next welding point 320 from the current welding point 310. And the current welding point 310 and the next welding point 320 at least partially overlap, which can also make the sealing of the finally formed welding track 300 better, and can make the display panel 10 have a better waterproof effect. The overlap rate of the current welding point 310 and the next welding point 320 can be between one quarter and three quarters of the current welding point 310 or the next welding point 320. Specifically, the overlap rate of the current welding point 310 and the next welding point 320 can be one quarter, one half or three quarters of the current welding point 310 or the next welding point 320, etc.

[0049] In some embodiments, after the step of forming a welding track 300 surrounding the liquid crystal layer 200 (step S502), the preparation method further includes: adjusting the relative position of the welding laser 400 and the welding area 111 according to the welding track 300; in the process of adjusting the relative position of the welding laser 400 and the welding area 111, performing at least one second laser pulse to welding points at different positions in the welding track 300, wherein the power of the first laser pulse is less than the power of the second laser pulse.

[0050] After the welding track 300 is initially formed, the welding point where the welding operation is performed last can be used as the initial starting point, and the relative positions of the welding laser 400 and the welding area 111 can be adjusted so that the position where the welding laser 400 is incident on the welding area 111 gradually changes along the welding track 300, and passes through each welding point on the welding track 300 one by one. Whenever the laser is incident on a welding point, at least one second laser pulse can be applied to the welding point to strengthen the fixing effect of the two-layer welding substrate 100 through the second laser pulse. Since the power of the first laser pulse is relatively small, the shape of the welding point that finally appears on the surface of the welding substrate 100 can be made smaller, which makes it easier to show the complete appearance of the panel 10, and since the power of the second laser pulse is relatively large, the fixing effect of the two-layer welding substrate 100 can be strengthened through the second laser pulse, and the risk of unclear welding effect due to insufficient energy of the first laser pulse can also be alleviated.

[0051] In some embodiments, before performing a step of performing multiple first laser pulses to a current welding point 310 in a welding area 111 on a side of a welding substrate 100 away from another welding substrate 100 (step S102), the preparation method includes: performing a third laser pulse to a predetermined welding point 330 in a welding area 111 of a welding substrate 100 away from another welding substrate 100, so that the two welding areas 111 corresponding to the predetermined welding point 330 are partially melted and fixed under the action of the third laser pulse, wherein the predetermined welding point 330 and the current welding point 310 correspond to different positions of the welding area 111, and the power of the first laser pulse is less than the power of the third laser pulse. The predetermined welding point 330 may be any one or more welding points on the welding area 111, or the predetermined welding point 330 may be a welding point at a corner of the welding track 300 in the welding area 111. For example, when the display panel 10 is a quadrilateral display panel 10, the welding track 300 may be quadrilateral, so that the welding track 300 may generate welding points at four corners, and each welding point at the corner may be understood as a predetermined welding point 330. The power of the first laser pulse is less than the power of the third laser pulse, and the two-layer welding substrate 100 at the predetermined welding point 330 can be quickly welded and fixed by the third laser pulse, and when the predetermined welding point 330 is a welding point at a corner of the welding track 300, the predetermined welding point 330 processed by the higher-power third laser pulse can form a larger welding part, which makes it easier to make the welding track 300 continuous and improve the welding effect.

[0052] Further, the power of the third laser pulse is 1.3 to 12 times the power of the first laser pulse. Specifically, the power of the third laser pulse is 2 to 12 times the power of the first laser pulse, the power of the third laser pulse is 3 to 10 times the power of the first laser pulse, the power of the third laser pulse is 4 to 8 times the power of the first laser pulse, or the power of the third laser pulse is 5 to 12 times the power of the first laser pulse, and so on. Exemplarily, the power of the first laser pulse may be between 0.5w and 3w, and its repetition frequency may be 1MHz, and the power of the third laser pulse may be between 4w and 6w, and its repetition frequency may be 500kHz to 1000kHz. The width of the weld left by the first laser pulse may be less than or equal to 50μm, and the width of the weld left by the second laser pulse may be between 90μm and 150μm.

[0053] See also Figure 6 , Figure 6 yes Figure 1 FIG. 1 is a flow chart of an embodiment of step S102 in FIG.

[0054] Step S601: performing at least one fourth laser pulse on a current welding point in a welding area of ​​a welding substrate facing away from another welding substrate.

[0055] The power of the fourth laser pulse may be the same as or similar to the power of the first laser pulse described above. The power of the fourth laser pulse is relatively low. By initially acting on the welding substrate 100 at the current welding point 310 with the fourth laser pulse, the width of the weld remaining on the welding substrate 100 can be reduced. For example, the power of the fourth laser pulse may be between 0.5w and 3w, and the repetition frequency may be 1MHz, so that the width of the remaining weld is less than or equal to 50μm. In this embodiment, by performing at least one fourth laser pulse at the current welding point 310, that is, at least one fourth laser pulse acts on the current welding point 310, at least a portion of the welding substrate 100 corresponding to the current welding point 310 can be gradually melted by the fourth laser pulse with a relatively low welding power. Moreover, since the fourth laser pulse can be adapted to a relatively low power, the weld finally formed at the current welding point 310 is smaller, and it is easier to display the appearance of the panel 10 as being complete.

[0056] Step S602: applying at least one fifth laser pulse to the current welding point, so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the fifth laser pulse, wherein the power of the fourth laser pulse is less than the power of the fifth laser pulse.

[0057] The fifth laser pulse has a relatively large power, and the fifth laser pulse can be used to quickly melt the welding substrate 100 at the current welding point 310. For example, the power of the fifth laser pulse can be between 4w and 6w, and its repetition frequency can be 500kHz to 1000kHz. Since the fourth laser pulse first acts on the current welding point 310, part of the welding substrate 100 at the current welding point 310 has been melted. When the fifth laser pulse acts on the current welding point 310, the fifth laser pulse directly acts on the internal welding substrate 100, alleviating the large traces of the welding points left on the surface of the welding substrate 100 due to the high power of the fifth laser pulse, thereby improving the welding efficiency while making it easier to make the appearance of the display panel 10 complete.

[0058] To summarize, performing multiple first laser pulses on the current welding point 310 in the welding area 111 on the side of one welding substrate 100 away from the other welding substrate 100 can enable the laser to gradually penetrate the welding substrate 100, compared with performing fewer times of larger-energy laser pulses, and the energy accumulated by multiple first laser pulses can jointly melt and fix the two layers of the welding substrate 100, thereby reducing the risk of cracks in the welding substrate 100, thereby achieving a better welding effect. In addition, the two welding areas 111 corresponding to the current welding point 310 are partially melted and fixed under the action of multiple first laser pulses, which can improve the fixing effect of the two layers of the welding substrate 100 and enhance the anti-detachment strength of the display panel 10.

[0059] In order to solve the technical problems existing in the related art, the present application also provides a display panel, which is prepared by the preparation method of any of the above embodiments.

[0060] In order to solve the technical problems existing in the related art, the present application also provides an electronic device, see Figure 7 , Figure 7 It is a schematic diagram of the structure of an embodiment of an electronic device provided by the present application.

[0061] The electronic device 1 includes the above-mentioned display panel 10. The electronic device 1 includes a housing 20 and a display panel 10, and the housing 20 is used to carry the display panel 10. It should be noted that the electronic device 1 in the embodiment of the present application can be an electronic device 1 such as a television, a mobile phone, a smart phone, a tablet computer, an e-reader, a wearable portable device, a laptop computer, etc., which can communicate with a data transfer server through the Internet, and the data transfer server can be an instant messaging server, etc., which is not limited in the embodiment of the present application.

[0062] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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 preparing a display panel, characterized in that: The preparation method comprises: A display panel is provided, wherein the display panel comprises a liquid crystal layer and two layers of welding substrates, each layer of the welding substrate comprises a welding area and a driving area, the liquid crystal layer is sandwiched between the driving areas of the two layers of the welding substrates, and the welding areas of the two layers of the welding substrates are arranged correspondingly; Multiple first laser pulses are applied to the current welding point in the welding area on the side of one welding substrate facing away from the other welding substrate, so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of multiple first laser pulses.

2. The preparation method according to claim 1, characterized in that: After the step of performing a plurality of first laser pulses on a current welding point in the welding area on a side of one welding substrate facing away from the other welding substrate, the preparation method comprises: Adjusting the relative position of the welding laser and the welding area so that the welding laser corresponds to a next welding point, wherein the next welding point and the current welding point correspond to different positions of the welding area; The next welding point is used as the current welding point, and the step of returning to: applying multiple first laser pulses to the current welding point in the welding area on the side of one welding substrate away from the other welding substrate until a welding track surrounding the liquid crystal layer is formed.

3. The preparation method according to claim 2, characterized in that: After the step of forming a welding track surrounding the liquid crystal layer, the preparation method further comprises: Adjusting the relative position of the welding laser and the welding area according to the welding trajectory; In the process of adjusting the relative position of the welding laser and the welding area, at least one second laser pulse is applied to welding points at different positions in the welding track, wherein the power of the first laser pulse is less than the power of the second laser pulse.

4. The preparation method according to claim 2, characterized in that: The current welding point and the next welding point at least partially overlap.

5. The preparation method according to claim 1, characterized in that: The preparation method comprises: adjusting the incident angle of the welding laser to the scanning galvanometer to change the shape of the welding laser incident to the current welding point, wherein the scanning galvanometer is located on the optical path of the welding laser.

6. The preparation method according to any one of claims 1 to 5, characterized in that: Before the step of performing a plurality of first laser pulses on a current welding point in the welding area on a side of one welding substrate facing away from the other welding substrate, the preparation method comprises: A third laser pulse is applied to a predetermined welding point of the welding area of ​​one welding substrate away from the other welding substrate, so that the two welding areas corresponding to the predetermined welding point are partially melted and fixed under the action of the third laser pulse, wherein the predetermined welding point and the current welding point correspond to different positions of the welding area, and the power of the first laser pulse is less than the power of the third laser pulse.

7. The preparation method according to claim 6, characterized in that: The power of the third laser pulse is 1.3 to 12 times the power of the first laser pulse.

8. The preparation method according to any one of claims 1 to 5, characterized in that: The step of applying a plurality of first laser pulses to the current welding point in the welding area of ​​one welding substrate facing away from the other welding substrate so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the plurality of first laser pulses comprises: Performing at least one fourth laser pulse on a current welding point in the welding area on a side of one welding substrate facing away from the other welding substrate; At least one fifth laser pulse is applied to the current welding point, so that the two welding areas corresponding to the current welding point are partially melted and fixed under the action of the fifth laser pulse, wherein the power of the fourth laser pulse is less than the power of the fifth laser pulse.

9. A display panel, characterized in that: The display panel is prepared by the preparation method according to any one of claims 1 to 8.

10. An electronic device, characterized in that: The electronic device comprises the display panel according to claim 9.

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