Array substrate and manufacturing method, display panel

Abstract

The present invention discloses an array substrate and a manufacturing method, and a display panel, and relates to the field of display technology. The second protective layer is provided with a first, a second and a third penetration structure, the first penetration structure penetrates the first and second protective layers and exposes the first driving electrode, the second penetration structure penetrates the first and second protective layers and exposes the second driving electrode, and the third penetration structure penetrates the second protective layer and exposes part of the first pixel electrode layer; the end of the first conductive layer extends into the second penetration structure and is connected to the second driving electrode, and the end of the second conductive layer extends into the first penetration structure and is connected to the first driving electrode. Through the first penetration structure, the second penetration structure and the third penetration structure, the first conductive layer and the second conductive layer can respectively connect the first pixel electrode layer with the second driving electrode and the second pixel electrode layer with the first driving electrode, so that the photomask corresponding to the first protective layer can be reduced in the process, which is beneficial to improving the manufacturing efficiency of the array substrate.

Description

Technical Field

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

[0002] Traditional liquid crystal displays (LCD) will have serious color shift at wide viewing angles. This color shift phenomenon is more obvious in vertical alignment (VA) type LCDs. The prior art has improved the color shift problem of LCDs at wide viewing angles by adopting a multi-domain display array substrate design.

[0003] For the commonly used multi-domain display technology, each pixel unit includes a main pixel area and a sub-pixel area, and the main pixel area and the sub-pixel area both include multiple domain areas. In order to further improve the efficiency of liquid crystal and improve the display quality, some array substrates use two layers of pixel electrodes in the main and sub-pixel areas. By adding a layer of pixel electrode, the wiring space is increased. At this time, the corresponding process needs to add two masks to respectively make the protective layer between the two layers of pixel electrodes and the newly added pixel electrode, which is not conducive to improving production capacity. Summary of the invention

[0004] The main purpose of the present invention is to provide an array substrate to improve the manufacturing efficiency of the array substrate.

[0005] To achieve the above-mentioned purpose, the array substrate proposed in the present invention includes a plurality of pixel units, wherein the pixel units include a base substrate, a driving electrode layer, a first protective layer, a first pixel electrode layer, a second protective layer and a second pixel electrode layer which are sequentially stacked, wherein the driving electrode layer includes a first driving electrode and a second driving electrode; the second protective layer is provided with a first penetration structure, a second penetration structure and a third penetration structure, wherein the first penetration structure penetrates the second protective layer and the first protective layer and exposes the first driving electrode, the second penetration structure penetrates the second protective layer and the first protective layer and exposes the second driving electrode, and the third penetration structure penetrates the second protective layer and exposes a portion of the first pixel electrode layer; the array substrate also includes a first conductive layer and a second conductive layer, wherein the first conductive layer and the second conductive layer are both arranged on a side of the second protective layer away from the first pixel electrode layer; one end of the first conductive layer extends into the third penetration structure and is connected to the first pixel electrode layer, and the other end of the first conductive layer extends into the second penetration structure and is connected to the second driving electrode; one end of the second conductive layer extends into the first penetration structure and is connected to the first driving electrode, and the other end of the second conductive layer is connected to the second pixel electrode layer.

[0006] Optionally, a side edge of the second through-structure is connected to a side edge of the third through-structure.

[0007] Optionally, the outline formed by the second penetrating structure and the third penetrating structure is circular, elliptical, rectangular, or rounded rectangular.

[0008] Optionally, the third penetrating structure is arranged on a side of the second penetrating structure away from the first penetrating structure.

[0009] Optionally, projection is performed along the thickness direction of the array substrate: the pixel unit includes a driving area and a display area, the portion of the second pixel electrode layer located in the display area covers the portion of the first pixel electrode layer located in the display area; the second pixel electrode layer is provided with a plurality of slits, and the slits penetrate the second pixel electrode layer along the thickness direction; the first driving electrode and the second driving electrode are both arranged in the driving area, and the first penetrating structure, the second penetrating structure and the third penetrating structure are all arranged in the driving area, and the first penetrating structure, the second penetrating structure and the third penetrating structure are arranged along the side of the display area; the projections of the second pixel electrode layer and the portion of the first pixel electrode layer located in the driving area in the thickness direction of the array substrate do not intersect.

[0010] Optionally, projection is performed along the thickness direction of the array substrate: the pixel unit includes a driving area and two display areas, and the two display areas are respectively located on opposite sides of the driving area; in each of the display areas, the portion of the second pixel electrode layer located in the display area covers the portion of the first pixel electrode layer located in the display area; the second pixel electrode layer is provided with a plurality of gaps, and the gaps penetrate the second pixel electrode layer along the thickness direction; each of the display areas is provided with corresponding first driving electrodes and second driving electrodes; the first driving electrode and the second driving electrode are both arranged in the driving area, and the first penetration structure, the second penetration structure and the third penetration structure are all arranged in the driving area; the arrangement direction of the first penetration structure, the second penetration structure and the third penetration structure intersects with the arrangement direction of the two display areas.

[0011] Optionally, at least one of the first through-structure, the second through-structure and the third through-structure is set as a through hole or a notch; and / or, the outline of at least one of the first through-structure, the second through-structure and the third through-structure is set as a circle or an ellipse or a rectangle or a rounded rectangle.

[0012] The present invention also provides a manufacturing method, which is used to manufacture an array substrate, and the manufacturing method comprises the following steps:

[0013] A driving electrode layer, a first protective layer, a first pixel electrode layer, and a second protective layer are sequentially formed on the base substrate, wherein the driving electrode layer includes a first driving electrode and a second driving electrode;

[0014] Through the same photomask, a first penetration structure, a second penetration structure and a third penetration structure are formed on the second protective layer; the first penetration structure penetrates the second protective layer and the first protective layer and exposes the first driving electrode, the second penetration structure penetrates the second protective layer and the first protective layer and exposes the second driving electrode, and the third penetration structure penetrates the second protective layer and exposes a portion of the first pixel electrode layer;

[0015] A first conductive layer, a second conductive layer, and a second pixel electrode layer are formed on the side of the second protective layer facing away from the first pixel electrode layer; one end of the first conductive layer extends into the third through-structure and is connected to the first pixel electrode layer, and the other end of the first conductive layer extends into the second through-structure and is connected to the second drive electrode; one end of the second conductive layer extends into the first through-structure and is connected to the first drive electrode, and the other end of the second conductive layer is connected to the second pixel electrode layer.

[0016] Optionally, the second pixel electrode layer is formed while forming the first conductive layer and / or the second conductive layer.

[0017] The present invention also proposes a display panel, which includes a color filter substrate and the above-mentioned array substrate, the color filter substrate and the array substrate are arranged in a box, a liquid crystal layer is filled between the color filter substrate and the array substrate, and the color filter substrate and the array substrate are bonded by a frame sealing glue.

[0018] The technical solution of the present invention is conducive to improving the liquid crystal efficiency of the corresponding display panel by setting the first pixel electrode layer and the second pixel electrode layer. The first penetration structure and the second penetration structure penetrate the second protective layer and the first protective layer to form a deep hole, and the third penetration structure penetrates the second protective layer to form a shallow hole, and then the first pixel electrode layer is connected to the second drive electrode and the second pixel electrode layer is connected to the first drive electrode respectively through the first conductive layer and the second conductive layer; the first penetration structure, the second penetration structure and the third penetration structure can be formed on the second protective layer at the same time in the process, reducing the corresponding mask of the first protective layer, which is conducive to improving the manufacturing efficiency of the array substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0020] Figure 1 It is a top view of a pixel unit of the vertical alignment technology in the prior art.

[0021] Figure 2 FIG. 1 is a top view of an embodiment of an array substrate during the formation process of the present invention.

[0022] Figure 3 for Figure 2 Schematic diagram of the cross section at the AA position.

[0023] Figure 4 FIG. 1 is a top view of an array substrate according to an embodiment of the present invention.

[0024] Figure 5 for Figure 4 Schematic diagram of the cross section at the mid-BB location.

[0025] Figure 6 FIG. 4 is a schematic cross-sectional view of another embodiment of an array substrate of the present invention.

[0026] Figure 7 FIG. 4 is a top view of another embodiment of an array substrate of the present invention.

[0027] Figure 8 FIG. 4 is a top view of another embodiment of an array substrate of the present invention.

[0028] Fig. 9 A cross-sectional view of an embodiment of a display panel of the present invention (corresponding to Figure 4 middle CC position).

[0029] Description of Figure Numbers:

[0030] Label name Label name 100 Pixel unit 101 Display Area 102 Drive area 121 The first driving electrode 122 The second driving electrode 130 First layer of protection 141 First pixel electrode layer 142 Second pixel electrode layer 143 Gap 150 Second layer of protection 151 First penetration structure 152 The second through structure 153 The third through structure 161 First conductive layer 162 Second conductive layer 200 Color film substrate 300 Liquid crystal layer

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention 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.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 the present invention.

[0035] Figure 1 The top view of an embodiment of a pixel unit 100 in the commonly used vertical alignment (VA) technology is shown, that is, a view projected along the thickness direction of the array substrate. The pixel unit 100 includes a driving area 102 and two display areas 101, and the two display areas 101 are respectively located on opposite sides of the driving area 102. Each display area 101 forms four domains through the "cross"-shaped trunk of the "M"-shaped (sometimes also called fishbone-shaped) pixel electrode, and the two display areas 101 form a total of eight domains to improve the color deviation problem of the liquid crystal display at a large viewing angle.

[0036] Reference Figure 2 , Figure 3In the process of forming the present invention, in order to further improve the efficiency of liquid crystal and the display quality, it is attempted to use two layers of pixel electrodes (a first pixel electrode layer 141 and a second pixel electrode layer 142 that is in the shape of a "M" (sometimes also called a fishbone shape) in the display area 101 of the array substrate; that is, the second pixel electrode layer 142 is provided with a plurality of slits 143, and the slits 143 penetrate the second pixel electrode layer 142 along the thickness direction, and the plurality of slits 143 make the second pixel electrode layer 142 in the shape of a "M"). At this time, for each pixel unit 100 (that is, one of the R pixel unit, the G pixel unit, and the B pixel unit, refer to Figure 2 As shown), projected along the thickness direction of the array substrate, the pixel unit 100 includes a driving area 102 and a display area 101, and the second pixel electrode layer 142 is located in the display area 101, covering the first pixel electrode layer 141 in the display area 101.

[0037] At this time, the manufacturing process corresponding to the array substrate includes:

[0038] A driving electrode layer is sequentially formed on the base substrate (the driving electrode layer includes a first driving electrode 121 and a second driving electrode 122, corresponding to a first photomask);

[0039] Forming a first protective layer 130 (corresponding to the second photomask to form a through structure connected to the first pixel electrode layer 141);

[0040] Forming a first pixel electrode layer 141 (corresponding to the third photomask);

[0041] Forming a second protective layer 150 (corresponding to the fourth photomask to form a through structure connected to the second pixel electrode layer 142);

[0042] A second pixel electrode layer 142 is formed (corresponding to the fifth mask).

[0043] Relative to Figure 1 In the vertical alignment technology, the corresponding process needs to add two masks (a fourth mask and a fifth mask need to be added) to respectively correspond to the production of the through structure of the second protective layer 150 and the second pixel electrode layer 142, which is not conducive to improving production capacity.

[0044] Therefore, the present invention provides an array substrate, which can be applied to a display panel of a liquid crystal display.

[0045] In one embodiment of the present invention, the array substrate includes a plurality of pixel units 100. Figure 4 , Figure 5The pixel unit 100 includes a base substrate, a driving electrode layer, a first protective layer 130, a first pixel electrode layer 141, a second protective layer 150, and a second pixel electrode layer 142, which are stacked in sequence. The driving electrode layer includes a first driving electrode 121 and a second driving electrode 122. At this time, compared with the traditional structure, the first pixel electrode layer 141 and the second pixel electrode layer 142 are arranged in different layers, which can increase the wiring space, thereby reducing the driving area and improving the aperture ratio.

[0046] Among them, the base substrate can be set as a glass substrate or a flexible substrate; the driving electrode layer can be set to include at least two thin film transistors (Thin Film Transistor, TFT), the gate of the thin film transistor is connected to the scan line and the source is connected to the data line, and the first driving electrode 121 and the second driving electrode 122 are respectively set as the drain of the two thin film transistors; the first protective layer 130 and the second protective layer 150 can be set in the form of: a traditional passivation layer (Passivation, PV), a PFA protective layer (Polymer Film on array, PFA), and a PFA protective layer and a traditional passivation layer stacked in any one; the first pixel electrode layer 141 and the second pixel electrode layer 142 can be made of indium tin oxide (ITO) or indium zinc oxide (IZO). The above-mentioned base substrate, driving electrode layer (first driving electrode 121, second driving electrode 122), first protective layer 130, second protective layer 150, first pixel electrode layer 141, and second pixel electrode layer 142 are only exemplary, and this embodiment does not limit the specific setting form.

[0047] Project along the thickness direction of the array substrate to obtain Figure 4 The view shown. At this time, the pixel unit includes a driving area 102 and a display area 101. The portion of the second pixel electrode layer 142 located in the display area 101 covers the portion of the first pixel electrode layer 141 located in the display area 101; the second pixel electrode layer 142 is provided with a plurality of slits 143, and the slits 143 penetrate the second pixel electrode layer 142 along the thickness direction, so that the second pixel electrode layer 142 can be arranged in a "M" shape (sometimes also called a fishbone shape). At this time, each display area 101 forms four large areas through the "X"-shaped trunk of the "M"-shaped (sometimes also called a fishbone shape) pixel electrode of the second pixel electrode layer 142; in each large partition, the portion corresponding to the slit 143 and the portion of the second pixel electrode layer 142 where the slit 143 is not provided become two different small partitions (see Figure 4 , Fig. 9 ). As a result, the structure forms a four-domain structure (four large partitions), relative to Figure 1 The traditional eight-domain structure has a better display effect. Figure 4 , Figure 5 The second protective layer 150 is provided with a first through structure 151, a second through structure 152 and a third through structure 153. The first through structure 151 penetrates the second protective layer 150 and the first protective layer 130 and exposes the first driving electrode 121. The second through structure 152 penetrates the second protective layer 150 and the first protective layer 130 and exposes the second driving electrode 122. The third through structure 153 penetrates the second protective layer 150 and exposes part of the first pixel electrode layer 141.

[0048] Among them, at least one of the first through-structure 151, the second through-structure 152 and the third through-structure 153 is set as a through hole or a notch; the outline of at least one of the first through-structure 151, the second through-structure 152 and the third through-structure 153 is set as a circle, an ellipse, a rectangle or a rounded rectangle. Figure 4 , the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 are all set as circular through holes. When the pixel unit is small as a whole, setting the outline of at least one of the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 to a circular or elliptical shape is more conducive to forming the first conductive layer 161, the second conductive layer 162 or the first pixel electrode layer 141, the second pixel electrode layer 142 described below, which is conducive to improving the manufacturing efficiency of the array substrate.

[0049] Continue to refer to Figure 5 The array substrate further includes a first conductive layer 161 and a second conductive layer 162. The first conductive layer 161 and the second conductive layer 162 are both arranged on a side of the second protective layer 150 away from the first pixel electrode layer 141 (eg, arranged on Figure 5 one end of the first conductive layer 161 (such as Figure 5 The left end of the first conductive layer 161 (as shown in FIG. 1 ) extends into the third through structure 153 and is connected to the first pixel electrode layer 141. Figure 5 One end of the second conductive layer 162 (eg, the right end in FIG. 1 ) extends into the second through structure 152 and is connected to the second driving electrode 122. Figure 5 The left end of the second conductive layer 162 (as shown in FIG. 1 ) extends into the first through structure 151 and is connected to the first driving electrode 121. Figure 5 The right end in FIG. 1 is connected to the second pixel electrode layer 142.

[0050] Among them, at least one of the first conductive layer 161 and the second conductive layer 162 is made of the same material as the second pixel electrode layer 142. For example, the first conductive layer 161, the second conductive layer 162, the first pixel electrode layer 141, and the second pixel electrode layer 142 are all made of indium tin oxide (ITO) or indium zinc oxide (IZO), so as to improve the overall forming efficiency of the first conductive layer 161, the second conductive layer 162, the first pixel electrode layer 141, and the second pixel electrode layer 142, and further improve the manufacturing efficiency of the array substrate.

[0051] Reference Figure 4 , Figure 5 The third penetration structure 153 is arranged on the side of the second penetration structure 152 away from the first penetration structure 151, that is, the first penetration structure 151, the second penetration structure 152, and the third penetration structure 153 are arranged in sequence (such as arranged in sequence along the left and right directions in the figure (i.e., the X direction in the figure)), so as to reduce the interference of the first pixel electrode layer 141 corresponding to the third penetration structure 153 with the second pixel electrode layer 142 corresponding to the first penetration structure 151 (refer to Figure 5 ) in order to improve the display effect of the corresponding display panel.

[0052] Furthermore, projection is performed along the thickness direction of the array substrate (ie, the projection is performed to obtain Figure 4 The first driving electrode 121 and the second driving electrode 122 are both disposed in the driving area 102, and the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 are all disposed in the driving area 102; the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 are disposed along the side edge of the display area 101 (such as Figure 4 The pixel units 100 are arranged along the bottom edge of the pixel unit 100 to improve the compactness of the structural arrangement.

[0053] In addition, the array substrate can also set the second pixel electrode layer 142 and the first pixel electrode layer 141 located in the driving area 102 so that their projections in the thickness direction of the array substrate do not intersect; so as to reduce the risk of damage to the first pixel electrode layer 141 caused by the process of forming the second pixel electrode layer 142 mentioned above.

[0054] As an alternative embodiment, refer to Figure 6 , the side of the second penetrating structure 152 is connected to the side of the third penetrating structure 153, so that the second penetrating structure 152 and the third penetrating structure 153 form a stepped structure in the depth direction; specifically, the areas of the two may intersect, or the area of ​​one may be enclosed in the area of ​​the other (such as Figure 7The side of the second through-structure 152 is connected to the side of the third through-structure 153, which is beneficial to make the through-structures (through holes, etc.) of the corresponding mask more concentrated and improve the structural strength of the corresponding mask, and also helps to make the first conductive layer 161 easier to form in a concentrated manner.

[0055] When the side edge of the second through-structure 152 is connected to the side edge of the third through-structure 153, Figure 7 , the outline formed by the second penetration structure 152 and the third penetration structure 153 is circular, of course, the outline formed by the second penetration structure 152 and the third penetration structure 153 can also be elliptical, rectangular, or rounded rectangular, which is not limited in this embodiment. At this time, the outline formed by the second penetration structure 152 and the third penetration structure 153 is circular or elliptical, which is more conducive to forming the first pixel electrode layer 141 and the second pixel electrode layer 142, and is conducive to improving the manufacturing efficiency of the array substrate.

[0056] As an alternative implementation, projection is performed along the thickness direction of the array substrate to obtain Figure 8 The top view shown. At this time, Figure 8 The pixel unit 100 includes a driving area 102 and two display areas 101, and the two display areas 101 are respectively located on opposite sides of the driving area 102. Figure 8 The upper and lower sides shown in the figure; in each display area 101, the part of the second pixel electrode layer 142 located in the display area 101 covers the part of the first pixel electrode layer 141 located in the display area 101, and the second pixel electrode layer 142 is provided with a plurality of slits 143, and the slits 143 penetrate the second pixel electrode layer 142 along the thickness direction; each display area 101 is provided with a corresponding first driving electrode 121 and a second driving electrode 122; the first driving electrode 121 and the second driving electrode 122 are both arranged in the driving area 102, and the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 are all arranged in the driving area 102; the arrangement direction of the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 (as shown in FIG. Figure 8 The X direction in the figure) and the arrangement direction of the two display areas 101 (such as Figure 8 The Y direction in the figure intersects (including vertical arrangement and inclined arrangement) to improve the compactness of the structural arrangement of the pixel unit 100.

[0057] Therefore, when manufacturing the array substrate, the overall manufacturing process includes:

[0058] A driving electrode layer is sequentially formed on the base substrate (the driving electrode layer includes a first driving electrode 121 and a second driving electrode 122, corresponding to a first photomask);

[0059] Forming a first protective layer 130 (the corresponding second photomask may be reduced, that is, the formation of a through structure connected to the first pixel electrode layer 141 may be reduced at this time);

[0060] Forming a first pixel electrode layer 141 (corresponding to the third photomask);

[0061] A second protective layer 150 is formed (corresponding to the fourth mask to form a first through-structure 151, a second through-structure 152 and a third through-structure 153;

[0062] The second pixel electrode layer 142 and the first conductive layer 161 and the second conductive layer 162 (corresponding to the fifth photomask) are formed.

[0063] In combination with the embodiment of the array substrate proposed by the present invention, the array substrate is provided with a first pixel electrode layer 141 and a second pixel electrode layer 142, which is beneficial to improving the liquid crystal efficiency of the corresponding display panel. The first penetration structure 151 and the second penetration structure 152 penetrate the second protective layer 150 and the first protective layer 130 to form a deep hole, and the third penetration structure 153 penetrates the second protective layer 150 to form a shallow hole, and then the first pixel electrode layer 141 is connected to the second drive electrode 122 and the second pixel electrode layer 142 is connected to the first drive electrode 121 through the first conductive layer 161 and the second conductive layer 162 respectively; the first penetration structure 151, the second penetration structure 152 and the third penetration structure 153 can be formed on the second protective layer 150 at the same time in the process, reducing the photomask corresponding to the first protective layer 130 (can reduce the second photomask), which is beneficial to improving the manufacturing efficiency of the array substrate.

[0064] Reference Figure 8 (correspond Figure 4 or Figure 8 The present invention further proposes a display panel, which includes a color filter substrate 200 and the array substrate. The color filter substrate 200 and the array substrate are arranged in a box, a liquid crystal layer 300 is filled between the color filter substrate 200 and the array substrate, and the color filter substrate 200 and the array substrate are bonded by a frame sealing adhesive.

[0065] The specific structure of the array substrate refers to the above embodiments. Since the display panel adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0066] The present invention also provides a manufacturing method, which is used to manufacture the above array substrate. Figure 5 , the manufacturing method comprises the following steps:

[0067] A driving electrode layer, a first protective layer 130, a first pixel electrode layer 141, and a second protective layer 150 are sequentially formed on the base substrate, wherein the driving electrode layer includes a first driving electrode 121 and a second driving electrode 122;

[0068] Through the same photomask, a first penetration structure 151, a second penetration structure 152 and a third penetration structure 153 are formed on the second protective layer 150; the first penetration structure 151 penetrates the second protective layer 150 and the first protective layer 130 and exposes the first driving electrode 121, the second penetration structure 152 penetrates the second protective layer 150 and the first protective layer 130 and exposes the second driving electrode 122, and the third penetration structure 153 penetrates the second protective layer 150 and exposes a portion of the first pixel electrode layer 141;

[0069] A first conductive layer 161, a second conductive layer 162 and a second pixel electrode layer 142 are formed on the side of the second protective layer 150 away from the first pixel electrode layer 141; one end of the first conductive layer 161 extends into the third through-structure 153 and is connected to the first pixel electrode layer 141, and the other end of the first conductive layer 161 extends into the second through-structure 152 and is connected to the second driving electrode 122; one end of the second conductive layer 162 extends into the first through-structure 151 and is connected to the first driving electrode 121, and the other end of the second conductive layer 162 is connected to the second pixel electrode layer 142.

[0070] Optionally, as an optional implementation, the second pixel electrode layer 142 is formed while forming the first conductive layer 161 and / or the second conductive layer 162 to improve the overall forming efficiency of the first conductive layer 161, the second conductive layer 162 and the second pixel electrode layer 142 to further improve the manufacturing efficiency of the array substrate.

[0071] The specific structure of the array substrate refers to the above embodiments. Since the manufacturing method adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0072] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An array substrate, It is characterized in that The array substrate comprises a plurality of pixel units, wherein the pixel units comprise a base substrate, a driving electrode layer, a first protective layer, a first pixel electrode layer, a second protective layer and a second pixel electrode layer which are sequentially stacked, wherein the driving electrode layer comprises a first driving electrode and a second driving electrode; the driving electrode layer is configured to comprise at least two thin film transistors, wherein the first driving electrode and the second driving electrode are respectively configured to be drain electrodes of two of the thin film transistors; The second protective layer is provided with a first penetration structure, a second penetration structure and a third penetration structure, the first penetration structure penetrates the second protective layer and the first protective layer and exposes the first driving electrode, the second penetration structure penetrates the second protective layer and the first protective layer and exposes the second driving electrode, and the third penetration structure penetrates the second protective layer and exposes a portion of the first pixel electrode layer; The array substrate also includes a first conductive layer and a second conductive layer, and the first conductive layer and the second conductive layer are both arranged on a side of the second protective layer away from the first pixel electrode layer; one end of the first conductive layer extends into the third through-structure and is connected to the first pixel electrode layer, and the other end of the first conductive layer extends into the second through-structure and is connected to the second driving electrode; one end of the second conductive layer extends into the first through-structure and is connected to the first driving electrode, and the other end of the second conductive layer is connected to the second pixel electrode layer.

2. The array substrate according to claim 1, It is characterized in that The side edge of the second through structure is connected to the side edge of the third through structure.

3. The array substrate according to claim 2, It is characterized in that The outline formed by the second penetrating structure and the third penetrating structure is circular, elliptical, rectangular, or rounded rectangular.

4. The array substrate according to claim 1, It is characterized in that The third penetrating structure is disposed on a side of the second penetrating structure away from the first penetrating structure.

5. The array substrate according to claim 1, It is characterized in that Projected along the thickness direction of the array substrate: the pixel unit includes a driving area and a display area, the portion of the second pixel electrode layer located in the display area covers the portion of the first pixel electrode layer located in the display area; the second pixel electrode layer is provided with a plurality of slits, and the slits penetrate the second pixel electrode layer along the thickness direction; the first driving electrode and the second driving electrode are both arranged in the driving area, and the first penetrating structure, the second penetrating structure and the third penetrating structure are all arranged in the driving area, and the first penetrating structure, the second penetrating structure and the third penetrating structure are arranged along the side of the display area; the projections of the second pixel electrode layer and the portion of the first pixel electrode layer located in the driving area in the thickness direction of the array substrate do not intersect.

6. The array substrate according to claim 1, It is characterized in that Projecting along the thickness direction of the array substrate: the pixel unit includes a driving area and two display areas, and the two display areas are respectively located on opposite sides of the driving area; in each of the display areas, the part of the second pixel electrode layer located in the display area covers the part of the first pixel electrode layer located in the display area; the second pixel electrode layer is provided with a plurality of gaps, and the gaps penetrate the second pixel electrode layer along the thickness direction; each of the display areas is provided with the corresponding first driving electrode and the second driving electrode; the first driving electrode and the second driving electrode are both arranged in the driving area, and the first penetration structure, the second penetration structure and the third penetration structure are all arranged in the driving area; the arrangement direction of the first penetration structure, the second penetration structure and the third penetration structure intersects with the arrangement direction of the two display areas.

7. The array substrate according to claim 1, It is characterized in that At least one of the first penetrating structure, the second penetrating structure and the third penetrating structure is configured as a through hole or a notch; and / or, The outline of at least one of the first penetration structure, the second penetration structure and the third penetration structure is set to be circular, elliptical, rectangular or rounded rectangular.

8. A manufacturing method, the manufacturing method being used to manufacture the array substrate according to any one of claims 1 to 7, It is characterized in that The manufacturing method comprises the following steps: A driving electrode layer, a first protective layer, a first pixel electrode layer, and a second protective layer are sequentially formed on a base substrate, wherein the driving electrode layer includes a first driving electrode and a second driving electrode; Through the same photomask, a first penetration structure, a second penetration structure and a third penetration structure are formed on the second protective layer; the first penetration structure penetrates the second protective layer and the first protective layer and exposes the first driving electrode, the second penetration structure penetrates the second protective layer and the first protective layer and exposes the second driving electrode, and the third penetration structure penetrates the second protective layer and exposes a portion of the first pixel electrode layer; A first conductive layer, a second conductive layer, and a second pixel electrode layer are formed on the side of the second protective layer facing away from the first pixel electrode layer; one end of the first conductive layer extends into the third through-structure and is connected to the first pixel electrode layer, and the other end of the first conductive layer extends into the second through-structure and is connected to the second drive electrode; one end of the second conductive layer extends into the first through-structure and is connected to the first drive electrode, and the other end of the second conductive layer is connected to the second pixel electrode layer.

9. The manufacturing method according to claim 8, It is characterized in that The second pixel electrode layer is formed while the first conductive layer and / or the second conductive layer are formed.

10. A display panel, It is characterized in that The display panel comprises a color filter substrate and an array substrate as claimed in any one of claims 1 to 7, wherein the color filter substrate and the array substrate are arranged in a box, a liquid crystal layer is filled between the color filter substrate and the array substrate, and the color filter substrate and the array substrate are bonded by a sealing adhesive.

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