Manufacturing method of display panel, display panel and display device

Abstract

The invention discloses a manufacturing method of a display panel, the display panel and a display device, and relates to the technical field of display. The manufacturing method of the display panel comprises the steps that an array substrate is provided, the array substrate comprises a first substrate and a driving circuit layer located on one side of the first substrate, and the driving circuit layer comprises a driving unit; a liquid crystal layer and a conductive frame adhesive are formed on the surface, away from the first substrate, of the array substrate, the conductive frame adhesive contains a charged material, and a first orthographic projection, on the first substrate, of the driving unit covers a second orthographic projection, on the first substrate, of the conductive frame adhesive; a color film substrate is pressed on the surfaces, away from the first substrate, of the liquid crystal layer and the conductive frame glue, the color film substrate comprises a common electrode layer, and a third orthographic projection, on the first substrate, of the common electrode layer covers the second orthographic projection; and the driving unit and the common electrode layer are controlled to sequentially form electric fields in different directions. By adopting the manufacturing method of the display panel, gaps between the conductive frame glue and the array substrate and between the conductive frame glue and the color film substrate can be eliminated.

Description

Technical Field

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

[0002] As technology develops to a certain extent, consumers’ choice of display products is not only based on function, but also on the appearance of the display products. In addition to the color and material of the display products themselves, the thickness of the frame and body have also become one of the concerns of consumers when purchasing display products.

[0003] At present, display products often use narrow-frame or borderless display panels, but the sides of narrow-frame or borderless display panels are more easily exposed to the outside, and the frame glue of the display panel in the related art is difficult to ensure effective blocking of water vapor. Then, external water vapor can easily enter the interior of the display panel through the frame glue, causing corrosion of the internal circuits of the display panel, affecting the normal display of the display panel. 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 a display device, aiming to solve the problem that the frame glue is difficult to effectively block water vapor.

[0005] To achieve the above-mentioned purpose, the present application proposes a method for manufacturing a display panel, and the method for manufacturing a display panel includes:

[0006] Providing an array substrate, wherein the array substrate comprises a first substrate and a driving circuit layer located on one side of the first substrate, and the driving circuit layer comprises a driving unit;

[0007] A liquid crystal layer and a conductive frame glue are formed on a surface of the array substrate away from the first substrate, wherein the conductive frame glue is located at an edge of the array substrate, the conductive frame glue contains a charged material, and a first orthographic projection of the driving unit on the first substrate covers a second orthographic projection of the conductive frame glue on the first substrate;

[0008] Laminating a color filter substrate on the surface of the liquid crystal layer and the conductive sealant away from the first substrate, wherein the color filter substrate comprises a common electrode layer, and a third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection;

[0009] The driving unit and the common electrode layer are controlled to sequentially form electric fields in different directions, so as to drive the charged material to move in different directions in sequence, thereby eliminating the gaps between the conductive frame glue and the array substrate and the color filter substrate respectively.

[0010] In one embodiment, controlling the driving unit and the common electrode layer to sequentially form electric fields in different directions includes:

[0011] Controlling the driving unit to form a vertical positive electric field between the common electrode layer to drive the charged material to move toward the common electrode layer and eliminate the gap between the conductive frame glue and the color filter substrate;

[0012] A vertical reverse electric field is formed between the driving unit and the common electrode layer to drive the charged material to move toward the driving unit and eliminate the gap between the conductive frame glue and the array substrate.

[0013] In one embodiment, the method for manufacturing the display panel further includes:

[0014] The driving unit is controlled again to form a vertical forward electric field between the common electrode layer to drive the charged material to spread evenly.

[0015] In one embodiment, the array substrate includes the first substrate, a driving circuit layer, a planarization layer, a conductive electrode and a first alignment film; before providing the array substrate, the method for manufacturing the display panel further includes:

[0016] providing the first substrate;

[0017] forming the driving circuit layer on one side of the first substrate;

[0018] Forming the planarization layer on a side of the driving circuit layer away from the first substrate, wherein the planarization layer is provided with a first opening and a second opening exposing different conductive layers of the driving circuit layer;

[0019] The conductive electrodes are formed on the exposed surfaces of the planarization layer and the driving circuit layer, and the first alignment film is formed on the surface of the planarization layer away from the first substrate, wherein the conductive electrodes are respectively located at the adjacent first openings and the second openings.

[0020] In one embodiment, the driving circuit layer includes a first conductive layer, an insulating layer, and a second conductive layer; and forming the driving circuit layer on one side of the first substrate includes:

[0021] forming the first conductive layer on one side of the first substrate, wherein the driving unit is located in the first conductive layer;

[0022] forming the insulating layer on the exposed surfaces of the first substrate and the first conductive layer;

[0023] The second conductive layer is formed on a side of the insulating layer away from the first substrate.

[0024] In one embodiment, forming a liquid crystal layer and a conductive frame glue on a surface of the array substrate away from the first substrate includes:

[0025] forming a liquid crystal layer on a side of the first alignment mold away from the first substrate;

[0026] A conductive sealant is applied on the edge of the surface of the planarization layer away from the first substrate.

[0027] In one embodiment, the color filter substrate includes a second substrate, a black matrix layer, a common electrode layer, and a second alignment film; before the color filter substrate is pressed onto the surface of the liquid crystal layer and the conductive frame glue away from the substrate, the method for manufacturing the display panel further includes:

[0028] providing the second substrate;

[0029] forming the black matrix layer on one side of the second substrate;

[0030] forming the common electrode layer on a side of the black matrix layer away from the second substrate;

[0031] A second alignment film is formed on a surface of the common electrode layer away from the second substrate.

[0032] In one embodiment, the method for manufacturing the display panel further includes:

[0033] After the gaps between the conductive frame glue and the array substrate and the color filter substrate are eliminated, the conductive frame glue is irradiated with ultraviolet light to cool and solidify the conductive frame glue.

[0034] In a second aspect, the present application further provides a display panel, which is manufactured using the display panel manufacturing method as described in the first aspect.

[0035] In a third aspect, the present application further provides a display device, comprising the display panel as described in the second aspect.

[0036] The manufacturing method of the above-mentioned display panel first provides an array substrate, and forms a liquid crystal layer and a conductive frame glue on the surface of the array substrate away from the first substrate, and then presses the color filter substrate on the surface of the liquid crystal layer and the conductive frame glue away from the first substrate to form an overall frame of the display panel. Since the array substrate includes a driving unit, the conductive frame glue contains a charged material inside, and the color filter substrate includes a common electrode layer, the first orthographic projection of the driving unit on the first substrate covers the second orthographic projection of the conductive frame glue on the first substrate, and the third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection, then an electric field acting on the conductive frame glue can be formed between the driving unit and the common electrode layer to drive the charged material inside the conductive frame glue to drive the conductive frame glue to move. Therefore, by controlling the driving unit and the common electrode layer to form electric fields in different directions in turn, the charged material can be driven to move in different directions in turn, and the conductive frame glue can be driven to move toward the conductive frame glue and the array substrate in turn, respectively eliminating the gap between the conductive frame glue and the array substrate and the color filter substrate, improving the edge sealing effect of the conductive frame glue, thereby preventing external water vapor from entering the display panel through the conductive frame glue.

[0037] The above-mentioned display panel and display device, since the display panel is manufactured by the above-mentioned display panel manufacturing method, the conductive frame glue has a good edge sealing effect, which can prevent external water vapor from entering the interior of the display panel through the conductive frame glue. Therefore, when the display panel adopts a narrow frame or a frameless design, it can still effectively block water vapor and ensure the normal display of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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 or the description of the prior art 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 the structures shown in these drawings without paying any creative work.

[0039] Figure 1 is a schematic diagram of a cross-sectional structure of a display panel frame area in the related art;

[0040] Figure 2 It is a schematic diagram of a process of manufacturing a display panel in an embodiment of the present application;

[0041] Figure 3 This is a schematic diagram of the structure of an array substrate in one embodiment of the present application;

[0042] Figure 4 This is a schematic diagram of a cross-sectional structure corresponding to an intermediate structure in step S202 in an embodiment of the present application;

[0043] Figure 5This is a schematic diagram of a cross-sectional structure corresponding to an intermediate structure in step S203 in an embodiment of the present application;

[0044] Figure 6 This is one of the cross-sectional structural diagrams of the structure corresponding to step S204 in one embodiment of the present application;

[0045] Figure 7 This is a second schematic cross-sectional structure diagram of a structure corresponding to step S204 in an embodiment of the present application;

[0046] Figure 8 This is a schematic diagram of the structure of the first large plate in one embodiment of the present application;

[0047] Fig. 9 is a schematic diagram of a cross-sectional structure of a display panel in an embodiment of the present application;

[0048] Fig.10 Schematic diagram of the manufacturing process of an array substrate in one embodiment of the present application;

[0049] Fig.11 This is a flow chart of step S1002 in one embodiment of the present application;

[0050] Fig.12 Schematic diagram of the structure of a display device in one embodiment of the present application.

[0051] Description of Figure Numbers:

[0052] 11-water vapor, 20-first large board, 21-array substrate, 211-first substrate, 212-driving circuit layer, 2121-first conductive layer, 21211-driving unit, 2122-insulating layer, 2123-second conductive layer, 213-planarization layer, 214-conductive electrode, 215-first alignment film, 22-liquid crystal layer, 23-conductive frame glue, 23'-frame glue, 231-adhesive colloid, 232-charged material, 24-color film substrate, 241-second substrate, 242-black matrix layer, 243-common electrode layer, 244-second alignment film, 25-driving circuit board, 100-touch display panel, 1000-display device.

[0053] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0055] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0057] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0058] As described in the background technology, at present, as technology has developed to a certain extent, consumers’ choice of display products is not only based on functions, but also on the appearance of the display products. In addition to the color and material of the display products themselves, the thickness of the frame and the body have also become one of the concerns of consumers when purchasing display products.

[0059] Currently, display products often use narrow-border or borderless display panels, but the sides of narrow-border or borderless display panels are more easily exposed, such as Figure 1 As shown, the display panel of the related technology includes an array substrate 21, a liquid crystal layer 22, a frame glue 23' and a color film substrate 24. There is easily a gap between the frame glue 23' and the array substrate 21 and the color film substrate 24. The frame glue 23' is difficult to ensure that the water vapor 11 is effectively blocked. Then, the external water vapor 11 can easily enter the interior of the display panel through the gap between the frame glue 23' and the array substrate 21 or the color film substrate 24, causing the internal circuits of the display panel to be corroded, resulting in abnormal display of the display panel.

[0060] Based on the above technical problems, the inventors have found that by adding charged materials inside the frame glue and applying an electric field to the frame glue, the charged materials can be driven to drive the frame glue to move, so that the frame glue can fill the gap between the frame glue and the array substrate and the color film substrate, thereby improving the edge sealing effect of the frame glue. Based on this, the inventors further studied the technical solution of the embodiment of the present application. Specifically, an embodiment of the present application provides a method for manufacturing a display panel, which includes: providing an array substrate, the array substrate including a first substrate and a driving circuit layer located on one side of the first substrate, the driving circuit layer including a driving unit; forming a liquid crystal layer and a conductive frame glue on a surface of the array substrate away from the first substrate, the conductive frame glue is located at the edge of the array substrate, the conductive frame glue contains a charged material, and the first orthographic projection of the driving unit on the first substrate covers the second orthographic projection of the conductive frame glue on the first substrate; pressing a color filter substrate on a surface of the liquid crystal layer and the conductive frame glue away from the first substrate, wherein the color filter substrate includes a common electrode layer, and the third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection; controlling the driving unit and the common electrode layer to sequentially form electric fields in different directions to drive the charged material to move in different directions in turn, thereby eliminating the gaps between the conductive frame glue and the array substrate and the color filter substrate, respectively.

[0061] Since the array substrate includes a driving unit, the conductive frame glue contains charged materials, the color film substrate includes a common electrode layer, the first orthographic projection of the driving unit on the first substrate covers the second orthographic projection of the conductive frame glue on the first substrate, and the third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection, then an electric field acting on the conductive frame glue can be formed between the driving unit and the common electrode layer to drive the charged materials inside the conductive frame glue to drive the conductive frame glue to move. Therefore, by controlling the driving unit and the common electrode layer to form electric fields in different directions in sequence, the charged materials can be driven to move in different directions in sequence, and the conductive frame glue can be driven to move toward the conductive frame glue and the array substrate in sequence, thereby eliminating the gaps between the conductive frame glue and the array substrate and the color film substrate, respectively, and improving the edge sealing effect of the conductive frame glue, thereby preventing external water vapor from entering the display panel through the conductive frame glue.

[0062] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be described clearly and completely below in conjunction with the drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0063] In one embodiment, the present application provides a method for manufacturing a display panel. Figure 2 As shown, the method for manufacturing the display panel includes the following steps S201 to S204.

[0064] S201: Provide an array substrate, wherein the array substrate includes a first substrate and a driving circuit layer located on one side of the first substrate, and the driving circuit layer includes a driving unit. Figure 3 .

[0065] In applications, the material of the first substrate 211 may be a transparent insulating material. For example, the material of the first substrate 211 may be glass. The first substrate 211 may be a hard substrate or a flexible substrate.

[0066] The driving circuit layer 212 may include multiple conductive layers, and the driving unit 21211 may be located in one of the conductive layers. Further, the conductive layer may be a conductive metal layer.

[0067] S202: forming a liquid crystal layer and a conductive frame glue on a surface of the array substrate away from the first substrate, wherein the conductive frame glue is located at the edge of the array substrate, the conductive frame glue contains a charged material, and the first orthographic projection of the driving unit on the first substrate covers the second orthographic projection of the conductive frame glue on the first substrate. Figure 4 .

[0068] It should be noted that the liquid crystal layer 22 may be first formed on the surface of the array substrate 21 away from the first substrate 211, and then a conductive sealant 23 may be formed on the edge of the array substrate 21, so that the conductive sealant 23 surrounds the liquid crystal layer 22. The first orthographic projection covers the second orthographic projection, that is, the first orthographic projection overlaps the second orthographic projection, and the area of ​​the first orthographic projection is not less than the area of ​​the second orthographic projection.

[0069] The conductive frame glue 23 may include an adhesive colloid 231 and a charged material 232. The adhesive colloid 231 enables the conductive optical glue to have an adhesive ability. The adhesive colloid 231 may be a polymer adhesive material. The polymer adhesive material may include materials of systems such as polyester, polyurethane, epoxy resin, polyether or siloxane. The polymer adhesive material may also include polymers containing fluorine, sulfur or thiophene. The charged material 232 may be a material that is charged itself, such as charged particles, or may be a conductive material after being energized. The charged material 232 may include at least one of conductive particles, conductive polymers, and ion conductive materials.

[0070] Exemplarily, the charged material 232 includes transparent conductive particles, which may include antimony tin oxide (Antimony Tin Oxide), indium tin oxide (ITO), carbon nanotubes, graphene, etc. Exemplarily, the charged material 232 includes a conductive polymer, for example, the conductive polymer may include poly 3,4-ethylenedioxythiophene monomer (PEDOT), polystyrene sulfonate (PSS). Exemplarily, the ion conductive material may include an ionic compound, which may include sodium hydroxide, sodium sulfide, etc.

[0071] S203: Press the color filter substrate onto the surface of the liquid crystal layer and the conductive frame glue away from the first substrate, wherein the color filter substrate includes a common electrode layer, and the third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection. Figure 5 .

[0072] The common electrode layer 243 is a conductive material, and the material of the common electrode layer 243 may include indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), indium fluoride oxide (IFO), etc. Exemplarily, the material of the common electrode layer 243 is ITO.

[0073] S204: Control the driving unit and the common electrode layer to sequentially form electric fields in different directions to drive the charged material to move in different directions in turn, and respectively eliminate the gaps between the conductive frame glue and the array substrate and the color filter substrate. Figure 6 The process of removing the conductive sealant 23 and the color film substrate 24 can be referred to Figure 7 .

[0074] The driving unit 21211 may be connected to an external driving device, and the driving device outputs a control signal to the driving unit 21211 , so that the driving unit 21211 and the common electrode layer 243 form a corresponding electric field.

[0075] It can be understood that the driving unit 21211 and the common electrode layer 243 can both be conductive, so an electric field can be formed between the driving unit 21211 and the common electrode layer 243. Since the first orthographic projection of the driving unit 21211 on the first substrate 211 covers the second orthographic projection of the conductive frame glue 23 on the first substrate 211, and the third orthographic projection of the common electrode layer 243 on the first substrate 211 covers the second orthographic projection, an electric field covering the conductive frame glue 23 can be formed between the driving unit 21211 and the common electrode layer 243. Since the conductive frame glue 23 contains a charged material 232, applying an electric field to the conductive frame glue 23 can drive the charged material 232 inside the conductive frame glue 23 to move, and the charged material 232 can drive the colloid movement of the conductive frame glue 23. Therefore, electric fields in different directions can be formed in sequence by controlling the driving unit 21211 and the common electrode layer 243, driving the charged material 232 to move in different directions in sequence, driving the conductive frame glue 23 to move toward the conductive frame glue 23 and the array substrate 21 in sequence, thereby eliminating the gaps between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24, respectively, and improving the edge sealing effect of the conductive frame glue 23, thereby preventing external water vapor from entering the display panel through the frame glue.

[0076] It should be noted that, in application, a first large plate including a plurality of array substrates 21 can be manufactured first, and then a frame glue and a liquid crystal layer 22 for each array substrate 21 can be formed on the surface of the first large plate, and then a second large plate including a plurality of color film substrates 24 can be pressed onto the conductive frame glue 23 and the liquid crystal layer 22 to form a general frame. The driving units 21211 of each array substrate 21 can be connected to the same driving control board, and the driving control board provides driving signals to the driving units 21211 of each array substrate 21 respectively, to implement the above-mentioned step S204. After eliminating the gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24, the driving circuit board can be disconnected, and finally divided to form a plurality of display panels. For example, as Figure 8 As shown, the first large board 20 with a length of 2600 mm and a width of 2250 mm can be cut into three 65-inch and two 55-inch array substrates 21, and the driving units 21211 of the five array substrates 21 can be connected to the same driving control board 25. Based on the above steps, five display panels can be formed.

[0077] The manufacturing method of the above-mentioned display panel first provides an array substrate 21, and forms a liquid crystal layer 22 and a conductive frame glue 23 on the surface of the array substrate 21 away from the first substrate 211, and then presses the color filter substrate 24 on the surface of the liquid crystal layer 22 and the conductive frame glue 23 away from the first substrate 211 to form an overall frame of the display panel. Since the array substrate 21 includes a driving unit 21211, the conductive frame glue 23 contains a charged material 232 inside, and the color filter substrate 24 includes a common electrode layer 243, the first orthographic projection of the driving unit 21211 on the first substrate 211 covers the second orthographic projection of the conductive frame glue 23 on the first substrate 211, and the third orthographic projection of the common electrode layer 243 on the first substrate 211 covers the second orthographic projection, then an electric field acting on the conductive frame glue 23 can be formed between the driving unit 21211 and the common electrode layer 243 to drive the conductive frame glue The charged material 232 inside 23 drives the conductive frame glue 23 to move. Therefore, by controlling the driving unit 21211 and the common electrode layer 243 to form electric fields in different directions in turn, the charged material 232 can be driven to move in different directions in turn, driving the conductive frame glue 23 to move toward the conductive frame glue 23 and the array substrate 21 in turn, thereby eliminating the gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24, respectively, and improving the edge sealing effect of the conductive frame glue 23, thereby preventing external water vapor from entering the display panel through the conductive frame glue 23.

[0078] In one embodiment, Figure 6 and Figure 7 As shown, in step S104, the driving unit and the common electrode layer are controlled to form electric fields in different directions in sequence, including: controlling the driving unit to form a vertical forward electric field between the common electrode layer to drive the charged material to move toward the common electrode layer, thereby eliminating the gap between the conductive frame glue and the color film substrate; controlling the driving unit to form a vertical reverse electric field between the common electrode layer to drive the charged material to move toward the driving unit, thereby eliminating the gap between the conductive frame glue and the array substrate.

[0079] The electric field between the driving unit 21211 and the common electrode layer 243 can be controlled by controlling the control signal transmitted to the driving unit 21211, and the electric field parameters can be adjusted by adjusting the control signal.

[0080] It can be understood that since the first orthographic projection covers the second orthographic projection, and the third orthographic projection also covers the second orthographic projection, the first orthographic projection and the third orthographic projection overlap, that is, the driving unit 21211 and the common electrode layer 243 overlap in the vertical direction, and the driving unit 21211 and the common electrode layer 243 can form a vertical electric field. Since the conductive frame glue 23 is located between the driving unit 21211 and the common electrode layer 243, the vertical electric field formed by the driving unit 21211 and the common electrode layer 243 can act on the charged material 232 inside the conductive frame glue 23. A vertical positive electric field is formed between the driving unit 21211 and the common electrode layer 243, which can make the charged material 232 move in the direction of the common electrode layer 243, thereby driving the colloid to move in the direction of the common electrode layer 243, thereby filling the bubble gap between the conductive frame glue 23 and the color filter substrate 24. A vertical reverse electric field is formed between the driving unit 21211 and the common electrode layer 243 , which can make the charged material 232 move toward the driving unit 21211 , thereby driving the colloid to move toward the driving unit 21211 , thereby filling the bubble gap between the conductive frame glue 23 and the array substrate 21 .

[0081] It should be noted that, in application, it is also possible to first control the driving unit 21211 and the common electrode layer 243 to form a vertical reverse electric field, so as to drive the charged material 232 to move toward the driving unit 21211, thereby eliminating the gap between the conductive frame glue 23 and the array substrate 21; and then control the driving unit 21211 and the common electrode layer 243 to form a vertical forward electric field, so as to drive the charged material 232 to move toward the common electrode layer 243, thereby eliminating the gap between the conductive frame glue 23 and the color film substrate 24.

[0082] In one embodiment, the method for manufacturing a display panel further includes: controlling the driving unit to form a vertical positive electric field between the common electrode layer to drive the charged material to spread evenly. Fig. 9 .

[0083] It can be understood that the charged material 232 drives the colloid to move, which will cause the shape of the conductive colloid to change. After a vertical positive electric field is formed between the control drive unit 21211 and the common electrode layer 243, the positive electric field drives the charged material 232 to drive the colloid to move toward the common electrode layer 243, and the colloid will gather in the direction of the common electrode layer 243, forming, for example Figure 6 The inverted trapezoidal conductive frame glue 23 is shown. After a vertical reverse electric field is formed between the control driving unit 21211 and the common electrode layer 243, the reverse electric field drives the charged material 232 to drive the colloid to move toward the driving unit 21211, and the colloid will gather toward the driving unit 21211, forming, for example Figure 7The trapezoidal conductive frame glue 23 shown. In the previous embodiment, a scheme is adopted in which a vertical positive electric field is first controlled between the driving unit 21211 and the common electrode layer 243, and then a vertical reverse electric field is controlled between the driving unit 21211 and the common electrode layer 243. Therefore, the colloid of the conductive frame glue 23 will gather toward the driving unit 21211. By controlling the vertical positive electric field between the driving unit 21211 and the common electrode layer 243 again, and reasonably controlling the magnitude of the electric field strength and the action time of the electric field, the charged material 232 can be evenly dispersed, so as to drive the conductive frame glue 23 to be evenly distributed as a whole, without gathering on one side, and finally forming, for example Fig. 9 The elliptical conductive sealant 23 is shown.

[0084] It should be noted that, in the process of eliminating the gap between the conductive frame glue 23 and the array substrate 21 and the color filter substrate 24, if the solution of first controlling the driving unit 21211 and the common electrode layer 243 to form a vertical reverse electric field and then controlling the driving unit 21211 and the common electrode layer 243 to form a vertical forward electric field is adopted, then correspondingly, the present embodiment needs to control the driving unit 21211 and the common electrode layer 243 to form a vertical reverse electric field again, so as to drive the charged material 232 to spread evenly, so as to make the conductive frame glue 23 evenly distributed as a whole.

[0085] In one embodiment, Figure 5 As shown, the array substrate 21 includes a first substrate 211, a driving circuit layer 212, a planarization layer 213, a conductive electrode 214 and a first alignment film 215. Fig.10 As shown, before step S201, the method for manufacturing a display panel further includes the following steps S1001 to S1004.

[0086] S1001: Provide a first substrate.

[0087] S1002: Form a driving circuit layer on one side of the first substrate.

[0088] The driving circuit layer 212 includes multiple conductive layers, the driving unit 21211 is located in one of the conductive layers, and each signal transmission line is also located in the corresponding conductive layer. The driving unit 21211 and the structure located in the same conductive layer as the driving unit 21211 can be manufactured using the same mask.

[0089] S1003: forming a planarization layer on a side of the driving circuit layer away from the first substrate, wherein the planarization layer is provided with a first opening and a second opening exposing different conductive layers of the driving circuit layer.

[0090] The material of the planarization layer 213 may be, for example, an insulating material. The planarization layer 213 is used to planarize and fill the driving circuit layer 212 .

[0091] S1004: forming a conductive electrode on the exposed surface of the planarization layer and the driving circuit layer, and forming a first alignment film on the surface of the planarization layer away from the first substrate, wherein the conductive electrode is respectively located at the adjacent first opening and the second opening.

[0092] The material of the conductive electrode 214 may include indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), indium fluoride oxide (IFO), etc. Further, the material of the conductive electrode 214 may be ITO. It should be noted that Figures 5 to 7 as well as Fig. 9 The cross-sectional structure shown is a cross-sectional view of the border area, therefore, a first opening and a second opening are provided on the planarization layer 213, and the first opening and the second opening of the planarization layer 213 respectively expose different conductive layers of the drive circuit layer 212, and then a continuous conductive electrode 214 is formed at the first opening and the second opening, and different conductive layers of the drive circuit layer 212 can be connected through the conductive electrode 214, that is, different signal transmission lines are connected. A first alignment material layer is formed on the surface of the planarization layer 213 away from the substrate, and then the first alignment material layer is patterned to form a first alignment film 215, and then a liquid crystal layer 22 can be formed on the first alignment film 215.

[0093] In one embodiment, Figure 5 As shown, the driving circuit layer 212 includes a first conductive layer 2121, an insulating layer 2122, and a second conductive layer 2123. Fig.11 As shown, in step S1002, a driving circuit layer 212 is formed on one side of the first substrate 211, including the following steps S1101 to S1103.

[0094] S1101: Form a first conductive layer on one side of a first substrate, wherein the driving unit is located in the first conductive layer.

[0095] A first conductive material layer may be formed on one side of the first substrate 211 , and then the first conductive material layer may be patterned to form a first conductive layer 2121 , and the driving unit 21211 and the corresponding signal transmission line may be located in the first conductive layer 2121 .

[0096] S1102: Form an insulating layer on the exposed surfaces of the first substrate and the first conductive layer.

[0097] The material of the insulating layer 2122 may be an inorganic insulating material, such as SiNx.

[0098] S1103: Form a second conductive layer on a side of the insulating layer away from the first substrate.

[0099] A second conductive material layer may be formed on the surface of the insulating layer 2122 away from the substrate, and then the second conductive material layer may be patterned to form a second conductive layer 2123. The first opening may expose the first conductive layer 2121, and the second opening may expose the second conductive layer 2123. The signal transmission lines located in the first conductive layer 2121 and the second conductive layer 2123 may be connected through the conductive electrode 214. The gate signal line may be located in the first conductive layer 2121, and the data signal line may be located in the second conductive layer 2123.

[0100] In one embodiment, a liquid crystal layer and a conductive frame glue are formed on a surface of the array substrate away from the substrate, including: forming a liquid crystal layer on a side of the first alignment mold away from the first substrate; and coating a conductive frame glue on the surface edge of the planarization layer away from the first substrate.

[0101] It should be noted that, in applications, the conductive sealant 23 may be formed on the edge of the surface of the planarization layer 213 away from the first substrate 211 in a film-attaching manner.

[0102] The material of the first alignment film 215 is polyimide, and the polyimide alignment film is coated on the color filter substrate 24 and the array substrate 21 to form an alignment layer. These alignment layers control the arrangement direction of the liquid crystal molecules through the angle between the side chain and the main chain in the polymer molecules, i.e., the so-called pre-tilt angle. In addition, the interaction between the side chain groups of the polymer and the liquid crystal molecules is strong, which has an anchoring effect on the liquid crystal molecules, so that the liquid crystal can be arranged in the direction of the pre-tilt angle, thereby making the display effect more uniform.

[0103] By coating the conductive glue 23 on the surface edge of the planarization layer 213 away from the substrate, the display panel can be sealed by the conductive glue 23. When there is no gap between the conductive glue 23 and the array substrate 21 and the color film substrate 24, the conductive glue 23 can effectively prevent water vapor from entering the interior of the display panel.

[0104] In one embodiment, the color filter substrate 24 includes a second substrate 241, a black matrix layer 242, a common electrode layer 243, and a second alignment film 244. Before the color filter substrate is pressed onto the surface of the liquid crystal layer and the conductive frame glue away from the first substrate, the method for manufacturing the display panel further includes: providing a second substrate 241; forming a black matrix layer 242 on one side of the second substrate 241; forming a common electrode layer 243 on one side of the black matrix layer 242; and forming a second alignment film 244 on the surface of the common electrode layer 243 away from the second substrate.

[0105] The material of the second substrate 241 may also be a transparent insulating material. For example, the material of the second substrate 241 may be glass. The second substrate 241 may be a hard substrate or a flexible substrate.

[0106] It should be noted that Figure 7 It is a cross-sectional structure of the border area, and the border area is not used for display, so a black matrix layer 242 is provided in the border area.

[0107] In applications, magnetron sputtering or evaporation can be used to form the common electrode layer 243. The common electrode layer 243 can include a plurality of mutually coupled block structures, or the common electrode layer 243 can be a whole layer structure.

[0108] The material of the common electrode layer 243 may be a transparent conductive material. Exemplarily, the material of the common electrode layer 243 includes indium tin oxide (ITO), indium zinc oxide (IZO), aluminum zinc oxide (AZO), indium fluoride oxide (IFO), etc. Further, the material of the common electrode layer 243 may be ITO.

[0109] It can be understood that after the color filter substrate 24 is pressed on the conductive frame glue 23 and the liquid crystal layer 22, the common electrode layer 243 will face the conductive frame glue 23, and an electric field can be formed between the common electrode layer 243 and the driving unit 21211. The electric field is applied to the conductive frame glue 23 between the common electrode layer 243 and the driving unit 21211 to drive the conductive frame glue 23 to fill the gap between the array substrate 21 and the color filter substrate 24, thereby improving the edge sealing effect of the conductive frame glue 23, so that the conductive frame glue 23 can effectively block water vapor from entering the display panel. A second alignment film 244 is formed on the surface of the common electrode layer 243 away from the substrate, so that the position of the second alignment film 244 corresponds to the liquid crystal layer 22, so that the other side of the liquid crystal layer 22 is in contact with the second alignment film 244. The second alignment film 244, as an alignment layer, can align the liquid crystal in the direction of the pre-tilt angle, thereby making the display effect more uniform.

[0110] It should be noted that the material of the second alignment film 244 may also be polyimide.

[0111] In one embodiment, the method for manufacturing a display panel further includes: after eliminating the gaps between the conductive frame glue and the array substrate and the color filter substrate, irradiating the conductive frame glue with ultraviolet (UV) light to cool and solidify the conductive frame glue.

[0112] It can be understood that in the process of eliminating the gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24, the conductive frame glue 23 needs to be kept in a liquid state so that the charged material 232 inside the conductive frame glue 23 can drive the colloid to move, so that the colloid fills the gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24. After eliminating the gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24, the conductive frame glue 23 needs to be kept in the current form or the form after the homogenization treatment, that is, the conductive frame glue 23 is solidified to ensure that the conductive frame glue 23 is attached to the array substrate 21 and the color film substrate 24, so that the conductive frame glue 23 can prevent water vapor from entering the display panel.

[0113] It should be noted that, in applications, the conductive frame glue 23 may also be cured by thermal curing or light-heat dual curing.

[0114] In one embodiment, the present application further provides a display panel, which is manufactured using the display panel manufacturing method of any of the above solutions.

[0115] Among them, the display panel may include an array substrate 21, a liquid crystal layer 22, a conductive frame glue 23 and a color film substrate 24, the conductive frame glue 23 and the liquid crystal layer 22 are respectively located between the array substrate 21 and the color film substrate 24, the array substrate 21 includes a first substrate 211 and a driving circuit layer 212 located on one side of the first substrate 211, the driving circuit layer 212 includes a driving unit 21211, the conductive frame glue 23 includes a charged material 232, the color film substrate 24 includes a common electrode layer 243, the first orthographic projection of the driving unit 21211 on the first substrate 211 covers the second orthographic projection of the conductive frame glue 23 on the first substrate 211, the third orthographic projection of the common electrode layer 243 on the first substrate 211 covers the second orthographic projection, and there is no gap between the conductive frame glue 23 and the array substrate 21 and the color film substrate 24.

[0116] The above-mentioned display panel is manufactured using the display panel manufacturing method of any of the above-mentioned schemes. Therefore, the conductive frame glue has a good edge sealing effect, which can prevent external water vapor from entering the interior of the display panel through the conductive frame glue. Therefore, when the display panel adopts a narrow frame or a frameless design, it can still effectively block water vapor and ensure the normal display of the display panel.

[0117] In one embodiment, Fig.12As shown, the present application also provides a display device 1000, including the display panel 100 as described above. The display device 1000 includes the display panel 100 as described in any of the above schemes, so the display device 1000 also has the beneficial effects of the display panel 100 in the above embodiments, and the similarities can be understood by referring to the above explanation of the display panel 100, which will not be repeated below.

[0118] The display device provided in the embodiment of the present application can be Fig.12 The mobile phone shown can also be any electronic product with a display function, including but not limited to the following categories: televisions, laptops, desktop displays, tablet computers, digital cameras, smart bracelets, smart glasses, car displays, industrial control equipment, medical display screens, touch interactive terminals, etc. The embodiments of the present application do not specifically limit this.

[0119] The above description is only an exemplary embodiment of the present application and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the technical concept of the present application, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for manufacturing a display panel, characterized in that: The manufacturing method of the display panel includes: Providing an array substrate, wherein the array substrate comprises a first substrate and a driving circuit layer located on one side of the first substrate, and the driving circuit layer comprises a driving unit; A liquid crystal layer and a conductive frame glue are formed on a surface of the array substrate away from the first substrate, wherein the conductive frame glue is located at an edge of the array substrate, the conductive frame glue contains a charged material, and a first orthographic projection of the driving unit on the first substrate covers a second orthographic projection of the conductive frame glue on the first substrate; Laminating a color filter substrate on the surface of the liquid crystal layer and the conductive sealant away from the first substrate, wherein the color filter substrate comprises a common electrode layer, and a third orthographic projection of the common electrode layer on the first substrate covers the second orthographic projection; The driving unit and the common electrode layer are controlled to sequentially form electric fields in different directions, so as to drive the charged material to move in different directions in sequence, thereby eliminating the gaps between the conductive frame glue and the array substrate and the color filter substrate respectively.

2. The method for manufacturing a display panel according to claim 1, characterized in that: The controlling the driving unit and the common electrode layer to sequentially form electric fields in different directions includes: Controlling the driving unit to form a vertical positive electric field between the common electrode layer to drive the charged material to move toward the common electrode layer and eliminate the gap between the conductive frame glue and the color filter substrate; A vertical reverse electric field is formed between the driving unit and the common electrode layer to drive the charged material to move toward the driving unit and eliminate the gap between the conductive frame glue and the array substrate.

3. The method for manufacturing a display panel according to claim 2, wherein: The method for manufacturing the display panel further includes: The driving unit is controlled again to form a vertical forward electric field between the common electrode layer to drive the charged material to spread evenly.

4. The method for manufacturing a display panel according to claim 1, characterized in that: The array substrate comprises the first substrate, a driving circuit layer, a planarization layer, a conductive electrode and a first alignment film; Before providing the array substrate, the method for manufacturing the display panel further includes: providing the first substrate; forming the driving circuit layer on one side of the first substrate; Forming the planarization layer on a side of the driving circuit layer away from the first substrate, wherein the planarization layer is provided with a first opening and a second opening exposing different conductive layers of the driving circuit layer; The conductive electrodes are formed on the exposed surfaces of the planarization layer and the driving circuit layer, and the first alignment film is formed on the surface of the planarization layer away from the first substrate, wherein the conductive electrodes are respectively located at the adjacent first openings and the second openings.

5. The method for manufacturing a display panel according to claim 4, characterized in that: The driving circuit layer includes a first conductive layer, an insulating layer, and a second conductive layer; the step of forming the driving circuit layer on one side of the first substrate includes: forming the first conductive layer on one side of the first substrate, wherein the driving unit is located in the first conductive layer; forming the insulating layer on the exposed surfaces of the first substrate and the first conductive layer; The second conductive layer is formed on a side of the insulating layer away from the first substrate.

6. The method for manufacturing a display panel according to claim 4, characterized in that: The step of forming a liquid crystal layer and a conductive frame glue on a surface of the array substrate away from the first substrate comprises: forming a liquid crystal layer on a side of the first alignment mold away from the first substrate; A conductive sealant is applied on the edge of the surface of the planarization layer away from the first substrate.

7. The method for manufacturing a display panel according to claim 1, characterized in that: The color filter substrate comprises a second substrate, a black matrix layer, a common electrode layer and a second alignment film; Before the color filter substrate is pressed onto the surface of the liquid crystal layer and the conductive frame glue away from the substrate, the method for manufacturing the display panel further includes: providing the second substrate; forming a black matrix layer on one side of the second substrate; forming the common electrode layer on a side of the black matrix layer away from the second substrate; A second alignment film is formed on a surface of the common electrode layer away from the second substrate.

8. The method for manufacturing a display panel according to claim 1, characterized in that: The method for manufacturing the display panel further includes: After the gaps between the conductive frame glue and the array substrate and the color filter substrate are eliminated, the conductive frame glue is irradiated with ultraviolet light to cool and solidify the conductive frame glue.

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: Comprising the display panel as claimed in claim 9.

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