Display panel and preparation method thereof

The display panel's innovative isolation component design with grooves and varying thicknesses stabilizes frame sealant application, addressing coating instability and enhancing production quality and efficiency in TFT-LCD manufacturing.

CN119126443APending Publication Date: 2024-12-13BOE TECHNOLOGY GROUP CO LTD +1
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Patent Information

Application Number
CN202411521491.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-29
Publication Date
2024-12-13

AI Technical Summary

Technical Problem

The manufacturing process of TFT-LCD display panels is hindered by the instability of the frame sealant coating, leading to defects such as narrow or broken glue, seal leakage, and liquid crystal contamination due to uneven glue application and timing issues, which affect the precision and quality of the ODF box assembly.

Method used

A display panel design featuring first and second isolation components with grooves and varying thicknesses and widths, along with a sealing component, to stabilize the frame sealant application and prevent liquid crystal diffusion, while allowing for efficient alignment and photocuring.

Benefits of technology

The design reduces defects caused by unstable frame sealant coating, enhances production quality, and improves efficiency by stabilizing the ODF box assembly process.

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Abstract

The invention provides a display panel and a preparation method thereof. The display panel is divided into a display area and a peripheral area surrounding the display area; the display panel comprises a first substrate and a second substrate which are oppositely arranged, and a liquid crystal layer, a sealing assembly, a first isolation assembly and a second isolation assembly which are arranged between the first substrate and the second substrate; wherein the sealing assembly is arranged between the first substrate and the second substrate; the sealing assembly is located in the peripheral area and surrounds the display area. The first isolation assembly is arranged between the sealing assembly and the liquid crystal layer and abuts against the first substrate and the second substrate. The first isolation component is arranged around the display area; the second isolation assembly is arranged on the side, away from the liquid crystal layer, of the sealing assembly and abuts against the first substrate and the second substrate. The second isolation component is arranged around the display area; the second isolation assembly is provided with at least one first groove part penetrating in the direction from the display area to the peripheral area.
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Description

Technical Field

[0001] The present disclosure belongs to the field of display technology, and particularly relates to a display panel and a method for preparing the same. Background Art

[0002] In the related art, the manufacturing process of TFT-LCD (Thin Film Transistor Liquid Crystal Display) display screen is to prepare TFT circuit and color film on two substrates respectively, and then complete the frame sealant coating and liquid crystal dripping on the two substrates respectively, and form a box with high precision under vacuum conditions. In the ODF (One Drop Filling) box forming process, the frame sealant is located on the edges of the substrates and is an important material for bonding the two substrates. It also plays the role of supporting the box thickness, isolating the air and protecting the liquid crystal. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art and provides a display panel and a method for manufacturing the same.

[0004] The present disclosure provides a display panel, which includes a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate; the display panel is divided into a display area and a peripheral area surrounding the display area; wherein,

[0005] The display panel further includes:

[0006] A sealing component is disposed between the first substrate and the second substrate; the sealing component is located in the peripheral area and surrounds the display area;

[0007] A first isolation component is disposed between the sealing component and the liquid crystal layer and abuts against the first substrate and the second substrate; the first isolation component is disposed around the display area;

[0008] The second isolation component is arranged on a side of the sealing component away from the liquid crystal layer and abuts against the first substrate and the second substrate; the second isolation component is arranged around the display area; wherein,

[0009] The second isolation component has at least one first groove portion penetrating along a direction from the display area to the peripheral area.

[0010] Among them, the second isolation component includes first sub-isolators and second sub-isolators that are alternately and connectedly arranged in sequence along the circumference of the display area; two adjacent first sub-isolators and the second sub-isolator located between the two define the first groove; the first sub-isolator is against the first substrate and the second substrate; along the thickness direction of the first substrate, the maximum height thickness of the second sub-isolator is less than the height thickness of the first sub-isolator, and the second sub-isolator is against one of the first substrate and the second substrate.

[0011] Wherein, in a direction from the display area to the peripheral area, the thickness of the second sub-isolating member decreases monotonically.

[0012] Wherein, along the thickness direction of the first substrate, the maximum thickness of the first sub-isolating member is not greater than the maximum thickness of the first isolating component.

[0013] Wherein, in a direction from the display area to the peripheral area, the maximum width of the second isolation component is greater than the maximum width of the first isolation component.

[0014] Wherein, a spacer is further included between the first substrate and the second substrate, and the first isolation component and the second isolation component are made of the same material as the spacer.

[0015] The present disclosure provides a method for preparing a display panel, wherein the display panel comprises a display area and a peripheral area surrounding the display area; the preparation method comprises:

[0016] A first substrate and a second substrate are formed, and a liquid crystal layer is formed between the first substrate and the second substrate; wherein,

[0017] The method for preparing the display panel further includes:

[0018] A first isolation component and a second isolation component are formed between the first substrate and the second substrate, the first isolation component and the second isolation component are located in the peripheral area and surround the display area; the first isolation component is closer to the display area than the second isolation component, and the second isolation component has at least one first groove portion penetrating in a direction from the display area to the peripheral area;

[0019] A sealing assembly is formed between the first isolation assembly and the second isolation assembly.

[0020] Wherein, the first isolation component and the second isolation component are formed in the same patterning process.

[0021] Wherein, a first isolation component and a second isolation component are formed between the first substrate and the second substrate, including:

[0022] An isolation component material layer is formed between the first substrate and the second substrate, and the isolation component material layer is exposed using a first mask as a mask, so that the isolation component material layer forms a non-exposure area, a semi-exposure area and a fully exposed area; the first mask includes a light-transmitting area, a non-light-transmitting area and a semi-light-transmitting area; and the transmittance of the semi-light-transmitting area in a direction from the display area to the peripheral area increases monotonically; the fully exposed area corresponds to the light-transmitting area, the semi-exposure area corresponds to the semi-light-transmitting area, and the non-light-transmitting area corresponds to the non-exposure area;

[0023] The portion of the isolation component material layer located in the fully exposed area is completely removed, and the portion of the thickness of the isolation component material layer located in the semi-exposed area is removed to form a first isolation component and a second isolation component.

[0024] The method further includes forming a spacer between the first substrate and the second substrate, and the spacer, the first isolation component and the second isolation component are formed in the same patterning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic top view of a display panel according to an embodiment of the present disclosure;

[0026] Figure 2 for Figure 1 Schematic diagram of the middle AA section;

[0027] Figure 3 for Figure 1 Schematic diagram of the middle BB section;

[0028] Figure 4 for Figure 1 Schematic diagram of the CC section;

[0029] Figure 5 is a side perspective view of a display panel according to an embodiment of the present disclosure;

[0030] 6A to 6F The present invention is a flowchart of the process for preparing the display panel according to the embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] In the preparation process of display panels, high-quality liquid crystal display panels have put forward higher requirements for the stability of the frame sealant coating process. When applying the frame sealant, the instability of the glue spitting amount and the uneven glue coating speed can easily lead to large fluctuations in the width, thickness and shape of the frame sealant obtained after coating, resulting in defects such as narrow glue, wide glue, and hypertrophy at the beginning and end. Narrow glue or even broken glue can easily form bubbles and seal leakage, and hypertrophy at the beginning and end will cause the thickness of the box in some areas around to increase, causing defects such as gaps in the periphery. In addition, after the frame sealant is applied, it is necessary to wait for the two substrates to be aligned into a box with high precision under vacuum conditions, and then the frame sealant is photocured to achieve stable bonding between the two substrates. If the waiting time is too long, the liquid crystal will diffuse into the uncured frame sealant, which will derive defects such as frame sealant puncture, liquid crystal contamination, and residual images. Therefore, it is necessary to strictly control the production time of adjacent processes during the production process, that is, strictly control the process Q-Time. Therefore, the coating process and process of the frame sealant have a great influence on the production quality of the ODF box process.

[0034] In view of the above problems existing in the related art, the present disclosure provides a display panel and a method for manufacturing the same, so as to reduce the influence of the coating process and process of the frame sealant on the production quality of the ODF box-assembling process and improve the production quality of the ODF box-assembling process.

[0035] like Figure 1 As shown, the present disclosure provides a display panel, which is divided into a display area 20 and a peripheral area 10, and the peripheral area 10 surrounds the display area 20. Figures 2 to 5As shown, the display panel includes a first substrate 1 and a second substrate 2 that are arranged opposite to each other, and a liquid crystal layer 21, a sealing component 110, a first isolation component 120, and a second isolation component 130 are arranged between the first substrate 1 and the second substrate 2. The sealing component 110 is located in the peripheral area 10 and is arranged around the display area 20; the first isolation component 120 is arranged between the sealing component 110 and the liquid crystal layer 21 and is arranged around the display area 20, and the first isolation component 120 is abutted against the first substrate 1 and the second substrate 2; the second isolation component 130 is arranged on a side of the sealing component 110 away from the liquid crystal layer 21 and is arranged around the display area 20, and the second isolation component 130 is abutted against the first substrate 1 and the second substrate 2, and the second isolation component 130 has at least one first groove portion 130a that penetrates from the display area 20 to the peripheral area 10.

[0036] In the embodiment of the present disclosure, one of the first substrate 1 and the second substrate 2 is an array substrate, and the other is a color filter substrate. The embodiment of the present disclosure is described by taking the first substrate 1 as an array substrate and the second substrate 2 as a color filter substrate as an example, but this cannot be a limitation of the present disclosure. In other embodiments, the first substrate 1 and the second substrate 2 may also be other possible substrates, which are not specifically limited here.

[0037] In the embodiment of the present disclosure, the first isolation component 120 is arranged between the sealing component 110 and the liquid crystal layer 21, and is arranged around the display area 20, and is against the first substrate 1 and the second substrate 2. The first isolation component 120 plays a supporting role between the first substrate 1 and the second substrate 2, and can completely isolate the liquid crystal layer 21 from the sealing component 110, blocking the liquid crystal from diffusing to contact the sealing component 110, effectively avoiding liquid crystal contamination of the sealing component 110, and extending the Q-time of the box-matching process step and the photocuring process step; the second isolation component 130 is arranged on the side of the sealing component 110 away from the liquid crystal layer 21, and is arranged around the display area 20, the second isolation component 130 is against the first substrate 1 and the second substrate 2, and the second isolation component 130 can play a supporting role between the first substrate 1 and the second substrate 2; along the display area 20 pointing to the surrounding In the direction of the edge area 10, a first isolation component 120 and a second isolation component 130 are respectively arranged on both sides of the sealing component 110, so that the sealing component 110 can be confined between the first isolation component 120 and the second isolation component 130. When the sealing component 110 is less or smaller, the liquid crystal layer 21 can still be effectively sealed to avoid bubbles and sealing leakage. The second isolation component 130 has at least one first groove portion 130a that runs through the direction from the display area 20 to the peripheral area 10. When the sealing component 110 is more or larger, the sealing component 110 squeezed in the box-matching process can be released through at least one first groove portion 130a, thereby avoiding the increase in the box thickness of the liquid crystal unit box obtained after the first substrate 1 and the second substrate 2 are matched, and the yellowing of the periphery caused by the increase in the box thickness.

[0038] In the embodiment of the present disclosure, the orthographic projection shape of the first groove portion 130a in the plane perpendicular to the direction from the display area 20 to the peripheral area 10 can be square, trapezoidal, semicircular, etc., and the orthographic projection of the first groove portion 130a in the direction from the display area 20 to the peripheral area 10 can also have a gradient shape, etc., which is specifically limited in the present disclosure. In the case where there are multiple first groove portions 130a, the multiple first groove portions 130a can have the same or different shapes, and can have the same or different sizes, which is not specifically limited in the present disclosure.

[0039] In the embodiment of the present disclosure, the sealing component 110 may be a frame sealant, a sealing strip, etc., which is not specifically limited herein. The present disclosure is described using the sealing component 110 as a frame sealant as an example, but this does not constitute a limitation to the present disclosure.

[0040] Through the structural design of the display panel of the embodiment of the present disclosure, the defects caused by the poor stability of the frame sealing glue coating process can be greatly reduced, which is conducive to improving product quality and production efficiency.

[0041] In the embodiment of the present disclosure, the first isolation component 120 and the second isolation component 130 are arranged in the same layer. The embodiment of the present disclosure takes the first isolation component 120 and the second isolation component 130 as an example to be arranged on the first substrate 1, i.e., the array substrate, but this does not constitute a limitation of the present disclosure. The specific positions of the first isolation component 120 and the second isolation component 130 on the first substrate 1 can be designed as needed, and are not specifically limited here. In the direction from the display area 20 to the peripheral area 10, the width between the first isolation component 120 and the second isolation component 130 can be designed according to the width requirements of the frame sealant 110, and are not specifically limited here.

[0042] Regarding the distribution of the plurality of first grooves 130a on the second isolation component 130, a greater number of first grooves 130a may be provided at positions where the amount of the sealing glue 110 surrounding the liquid crystal layer 21 is larger than at positions where the amount of the sealing glue is smaller, and / or the orthographic projection area of ​​the first grooves 130a in a plane perpendicular to the direction from the display area 20 to the peripheral area 10 may be larger, and / or the first grooves 130a have a greater height in the thickness direction of the first substrate 1, so that excess sealing glue 110 can overflow through the first grooves 130a, thereby avoiding an increase in the box thickness of the liquid crystal unit box obtained after the first substrate 1 and the second substrate 2 are aligned, and yellowing of the periphery caused by the increase in the box thickness.

[0043] In the embodiment of the present disclosure, the liquid crystal in the liquid crystal layer 21 can be a positive liquid crystal or a negative liquid crystal, which is not specifically limited here. The material of the first isolation component 120 and the second isolation component 130 can be a silicon dioxide photoresist, a polymethyl methacrylate photoresist, an epoxy photoresist, a photopolymerization photoresist, etc., which is not specifically limited here.

[0044] The inventive concept of the present disclosure is described below in conjunction with specific examples, but this shall not constitute a limitation of the present disclosure.

[0045] like Figures 1 to 5 As shown, this example provides a display panel, which is divided into a display area 20 and a peripheral area 10, and the peripheral area 10 surrounds the display area 20. Figures 2 to 5As shown, the display panel includes a first substrate 1 and a second substrate 2 that are arranged opposite to each other, and a liquid crystal layer 21, a sealant 110, a first isolation component 120, and a second isolation component 130 are arranged between the first substrate 1 and the second substrate 2. The sealant 110 is located in the peripheral area 10 and is arranged around the display area 20; the first isolation component 120 is arranged between the sealant 110 and the liquid crystal layer 21 and is arranged around the display area 20, and the first isolation component 120 is abutted against the first substrate 1 and the second substrate 2; the second isolation component 130 is arranged on a side of the sealant 110 away from the liquid crystal layer 21 and is arranged around the display area 20, and the second isolation component 130 is abutted against the first substrate 1 and the second substrate 2, and the second isolation component 130 has at least one first groove portion 130a that penetrates in a direction from the display area 20 to the peripheral area 10.

[0046] The second isolation component 130 includes a first sub-isolator 131 and a second sub-isolator 132 which are alternately and connectedly arranged in sequence along the circumference of the display area 20, and two adjacent first sub-isolators 131 and a second sub-isolator 132 located between the two adjacent first sub-isolators 131 jointly define a first groove 130a. The first sub-isolator 131 abuts against the first substrate 1 and the second substrate 2. In the thickness direction of the first substrate 1, the maximum thickness of the second sub-isolator 132 is less than the thickness of the first sub-isolator 131, and the second sub-isolator 132 abuts against one of the first substrate 1 and the second substrate 2.

[0047] In this example, the first sub-isolating member 131 abuts against the first substrate 1 and the second substrate 2, and the first sub-isolating member 131 plays a supporting role between the first substrate 1 and the second substrate 2; in the thickness direction along the first substrate 1, the maximum thickness of the second sub-isolating member 132 is less than the thickness of the first sub-isolating member 131, thereby forming a first groove 130a for overflowing excess sealing glue 110.

[0048] like Figure 3 As shown, in this example, in the direction from the display area 20 to the peripheral area 10 , the thickness of the second sub-spacer 132 decreases monotonically.

[0049] In this example, the thickness of the second sub-spacer 132 is also the dimension of the second sub-spacer 132 in the thickness direction of the first substrate 1. In the direction from the display area 20 to the peripheral area 10, the thickness of the second sub-spacer 132 decreases monotonically. It can be understood that when the second sub-spacer 132 abuts against the first substrate 1, the surface of the second sub-spacer 132 away from the first substrate 1 is an inclined surface 132a, and the inclined surface 132a is inclined from the second substrate 2 to the first substrate 1 in the direction from the display area 20 to the peripheral area 10, so as to facilitate the overflow of the frame sealant 110 along the inclined surface 132a; when the second sub-spacer 132 abuts against the second substrate 2, the surface of the second sub-spacer 132 away from the second substrate 2 is an inclined surface 132a, and the inclined surface 132a is inclined from the first substrate 1 to the second substrate 2 in the direction from the display area 20 to the peripheral area 10, so as to facilitate the overflow of the frame sealant 110 along the inclined surface 132a. By designing the inclined surface 132 a , the frame sealing glue 110 can be prevented from being affected by the surface tension, and the accumulation cannot overflow, which affects the thickness of the box after the box is assembled after curing.

[0050] In this example, the angle between the inclined surface 132a and the plane where the first substrate 1 is located can be 30°, 45°, 70°, etc., which is not specifically limited here. For example, at a position where the amount of glue ejected by the sealant 110 surrounding the liquid crystal layer 21 is large, the angle between the inclined surface 132a and the plane where the first substrate 1 is located can be larger than that at a position where the amount of glue ejected is small, so as to facilitate overflow of excessive sealant, avoid the increase in the thickness of the liquid crystal unit box obtained after the first substrate 1 and the second substrate 2 are assembled, and avoid the yellowing of the periphery caused by the increase in the thickness.

[0051] In other examples, the thickness of the second sub-isolating member 132 may remain unchanged in the direction from the display area 20 to the peripheral area 10. In some necessary cases, the thickness of the second sub-isolating member 132 may increase monotonically, or the thickness of the second sub-isolating member 132 may first increase, then decrease, and then increase again. No specific limitation is made here.

[0052] In this example, in the thickness direction of the first substrate 1 , the maximum thickness of the first sub-spacer 131 is not greater than the maximum thickness of the first spacer assembly 120 .

[0053] In this example, the thickness of the first sub-isolator 131 is the dimension of the first sub-isolator 131 in the thickness direction of the first substrate 1. In the thickness direction of the first substrate 1, the maximum thickness of the first sub-isolator 131 is not greater than the maximum thickness of the first isolation component 120. It can be understood that before the first substrate 1 and the second substrate 2 are assembled, the first isolation component 120 has a first thickness, the first sub-isolator 131 in the second isolation component 130 has a second thickness, and the thickness of the liquid crystal cell box after the first substrate 1 and the second substrate 2 are assembled is the third thickness, and the first thickness, the second thickness and the third thickness decrease in sequence. That is, in the process of assembling the first substrate 1 and the second substrate 2, the first isolation component 120 is squeezed, so that the first isolation component 120 achieves a good sealing effect on the liquid crystal layer 21 and plays a supporting role between the first substrate 1 and the second substrate 2. At the same time, the first sub-isolator 131 in the second isolation component 130 is squeezed, so that the first sub-isolator 131 in the second isolation component 130 achieves a supporting role between the first substrate 1 and the second substrate 2 after the assembly. At the same time, the second thickness of the first sub-isolating member 131 of the second isolation component 130 is smaller than the first thickness of the first isolation component 120, that is, the squeezing effect of the first sub-isolating member 131 in the second isolation component 130 during the box-aligning process is smaller than the squeezing effect on the first isolation component 120. This can avoid the situation where, after the first substrate 1 and the second substrate 2 are aligned, the first sub-isolating member 131 of the second isolation component 130 has a stronger supporting effect than the first isolation component 120, resulting in a gap between the first isolation component 120 and the first substrate 1 and / or the second substrate 2, affecting the sealing effect of the first isolation component 120 and causing problems such as liquid crystal leakage.

[0054] like Figure 2 and Figure 3 As shown, in the direction from the display area 20 to the peripheral area 10 , the maximum width W2 of the second isolation component 130 is greater than the maximum width W1 of the first isolation component 120 .

[0055] In this example, in the direction from the display area 20 to the peripheral area 10, the widths of the first isolation component 120 and the second isolation component 130 in the thickness direction of the first substrate 1 may vary. For example, in the direction from the first substrate 1 to the second substrate 2, the widths of the first isolation component 120 and the second isolation component 130 may both increase or decrease monotonically ( Figure 2 and Figure 3 In the figure, the widths of the first isolation component 120 and the second isolation component 130 are monotonically decreasing), or the width of the first isolation component 120 is monotonically increasing, and the width of the second isolation component 130 is monotonically decreasing. The first isolation component 120 and the second isolation component 130 may also have other width variations, which are not specifically limited here.

[0056] By setting the maximum width W2 of the second isolation component 130 to be greater than the maximum width W1 of the first isolation component 120 , the second isolation component 130 plays a more stable supporting role between the first substrate 1 and the second substrate 2 compared with the first isolation component 120 .

[0057] In other examples, in the direction from the display area 20 to the peripheral area 10 , the maximum width W2 of the second isolation component 130 may also be equal to or less than the maximum width W1 of the first isolation component 120 , which is not specifically limited herein.

[0058] In this example, the display panel further includes a spacer (not shown in the figure) disposed between the first substrate 1 and the second substrate 2 , and the first isolation component 120 and the second isolation component 130 are made of the same material as the spacer.

[0059] In this example, a spacer is provided between the first substrate 1 and the second substrate 2, and the spacer can support the first substrate 1 and the second substrate 2 to maintain the cell thickness of the liquid crystal layer 21. The first isolation component 120 and the second isolation component 130 are made of the same material as the spacer, so that the first isolation component 120 and the second isolation component 130 can be formed at the same time as the spacer is formed between the first substrate 1 and the second substrate 2, that is, the first isolation component 120, the second isolation component 130 and the spacer are formed in the same process step, which saves process steps and improves production efficiency.

[0060] The disclosed embodiment also provides a method for preparing a display panel, the display panel comprising a display area and a peripheral area surrounding the display area. The method for preparing a display panel comprises: forming a first substrate and a second substrate, and forming a liquid crystal layer between the first substrate and the second substrate; the method for preparing a display panel further comprises: forming a first isolation component and a second isolation component between the first substrate and the second substrate, the first isolation component and the second isolation component being located in the peripheral area and surrounding the display area; the first isolation component is closer to the display area than the second isolation component, the second isolation component having at least one first groove portion penetrating in a direction from the display area to the peripheral area; and forming a sealing component between the first isolation component and the second isolation component.

[0061] In the embodiments of the present disclosure, the present disclosure is described by taking the example of forming a first isolation component, a second isolation component and a sealing component on a first substrate and forming a liquid crystal layer on a second substrate, but this does not constitute a limitation of the present disclosure. In other embodiments, a liquid crystal layer may be formed on the first substrate, and a first isolation component, a second isolation component and a sealing component may be formed on the second substrate.

[0062] In the embodiments of the present disclosure, the sealing component may be a frame sealant, a sealing strip, etc., which is not specifically limited herein. The present disclosure is described using the sealing component being a frame sealant as an example, but this does not constitute a limitation to the present disclosure.

[0063] The method for preparing the display panel of the present disclosure is described below with reference to specific examples, but this does not constitute a limitation to the present disclosure.

[0064] First, a first substrate 1 and a second substrate 2 are formed. The first substrate 1 and the second substrate 2 can be made of a rigid material, such as glass, or a flexible material, such as polyimide.

[0065] Next, a first isolation component 120 , a second isolation component 130 and a sealing component 110 are formed on the first substrate 1 through a patterning process.

[0066] like Fig. 6A As shown, an isolation component material layer 130' is formed on the first substrate 1, and the isolation component material layer 130' is exposed using the first mask as a mask, so that the isolation component material layer 130' forms a non-exposure area, a semi-exposure area and a fully exposed area. The isolation component material layer 130' can be a positive photoresist or a negative photoresist. Here, the isolation component material layer 130' is taken as an example for explanation, but this does not constitute a limitation of the present disclosure. In the case where the isolation component material layer 130' is a positive photoresist, the first mask includes a light-transmitting area, a non-light-transmitting area and a semi-light-transmitting area, and the transmittance of the semi-light-transmitting area in the direction from the display area to the peripheral area increases monotonically; the fully exposed area of ​​the isolation component material layer 130' corresponds to the light-transmitting area of ​​the first mask, the semi-exposure area of ​​the isolation component material layer 130' corresponds to the semi-light-transmitting area of ​​the first mask, and the non-exposure area of ​​the isolation component material layer 130' corresponds to the non-light-transmitting area of ​​the first mask.

[0067] In this example, the first isolation component 120 and the second isolation component 130 are formed by using the first mask as a mask, which can reduce the number of masks used and reduce process costs. In other examples, the first isolation component 120 and the second isolation component 130 can also be formed by two or even more masks, which is not specifically limited here.

[0068] In this example, the first isolation component 120 and the second isolation component 130 are formed in the same patterning process. Forming the first isolation component 120 and the second isolation component 130 in the same patterning process can save steps in the preparation process of the display panel, reduce production costs, reduce production time, and improve production efficiency. In other embodiments, the first isolation component 120 and the second isolation component 130 can also be formed in different patterning processes, which is not specifically limited here.

[0069] Subsequently, the portion of the isolation component material layer 130 ′ located in the fully exposed area is completely removed, and the portion of the isolation component material layer 130 ′ located in the semi-exposed area is removed to form the first isolation component 120 and the second isolation component 130 .

[0070] In this example, the formed second isolation component 130 includes first sub-isolators 131 and second sub-isolators 132 which are arranged alternately and connected in sequence along the circumference of the display area. Two adjacent first sub-isolators 131 and a second sub-isolator 132 located between the two define a first groove portion. In the thickness direction of the first substrate 1, the maximum thickness of the second sub-isolator 132 is less than the thickness of the first sub-isolator 131. After the portion of the isolation component material layer 130' located in the fully exposed area is completely removed and the portion of the isolation component material layer 130' located in the semi-exposed area is removed, the portion of the isolation component material layer 130' located in the semi-exposed area corresponds to the second sub-isolator 132 of the second isolation component 130 (such as Figure 6B The portion of the isolation component material layer 130' located in the non-exposure area corresponds to the first isolation component 120 and the first sub-isolation member 131 of the second isolation component 130 (as shown in FIG. Figure 6C shown).

[0071] Then, if Fig.6D As shown, on the first substrate 1 , a sealing glue 110 is coated on the area between the first isolation component 120 and the second isolation component 130 .

[0072] Again, if Fig. 6E As shown, liquid crystal is dripped on the second substrate 2 to form a liquid crystal layer 21 .

[0073] In this example, the steps of forming the first isolation component 120 , the second isolation component 130 and the frame sealant 110 on the first substrate 1 and the step of forming the liquid crystal layer 21 on the second substrate 2 can be completed simultaneously.

[0074] Finally, if Fig. 6F As shown, the first substrate 1 and the second substrate 2 are aligned, and the frame-sealing glue 110 is photocured to achieve bonding of the first substrate 1 and the second substrate 2, thereby forming a liquid crystal layer 21, a first isolation component 120, a second isolation component 130 and the frame-sealing glue 110 between the first substrate 1 and the second substrate 2.

[0075] In this example, the method for preparing the display panel further includes the step of forming a spacer on the first substrate 1 (not shown in the figure), and the spacer is formed in the same patterning process as the first isolation component 120 and the second isolation component 130. In other examples, the spacer and the first isolation component 120 can be formed in the same patterning process, and the second isolation component 130 can be formed in another patterning process, or the spacer and the second isolation component 130 can be formed in the same patterning process, and the first isolation component 120 can be formed in another patterning process, which is not specifically limited here.

[0076] In this example, the first mask can be used to pattern the first isolation component 120 and the second isolation component 130 while also patterning the spacer, that is, the first mask can be used to pattern the first isolation component 120, the second isolation component 130, and the spacer at the same time. In other examples, multiple masks can be used to pattern the first isolation component 120, the second isolation component 130, and the spacer, respectively, which is not specifically limited here.

[0077] In other examples, spacers may be formed on the second substrate 2 , and the first isolation component 120 and the second isolation component 130 may be formed on the first substrate 1 , which is not specifically limited herein.

[0078] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A display panel, comprising a first substrate and a second substrate arranged opposite to each other, and a liquid crystal layer arranged between the first substrate and the second substrate; the display panel is divided into a display area and a peripheral area surrounding the display area; wherein: The display panel further includes: A sealing component is disposed between the first substrate and the second substrate; the sealing component is located in the peripheral area and surrounds the display area; A first isolation component is disposed between the sealing component and the liquid crystal layer and abuts against the first substrate and the second substrate; the first isolation component is disposed around the display area; The second isolation component is arranged on a side of the sealing component away from the liquid crystal layer and abuts against the first substrate and the second substrate; the second isolation component is arranged around the display area; wherein, The second isolation component has at least one first groove portion penetrating along a direction from the display area to the peripheral area.

2. The display panel according to claim 1, wherein: The second isolation component includes first sub-isolators and second sub-isolators that are alternately and connectedly arranged in sequence along the circumference of the display area; two adjacent first sub-isolators and the second sub-isolator located between the two define the first groove; the first sub-isolators abut against the first substrate and the second substrate; Along the thickness direction of the first substrate, the maximum thickness of the second sub-spacer is smaller than the thickness of the first sub-spacer, and the second sub-spacer abuts against one of the first substrate and the second substrate.

3. The display panel according to claim 2, wherein: The thickness of the second sub-spacer decreases monotonically in a direction from the display area to the peripheral area.

4. The display panel according to claim 2, wherein: In a thickness direction of the first substrate, a maximum thickness of the first sub-spacer is not greater than a maximum thickness of the first spacer assembly.

5. The display panel according to claim 1, wherein: In a direction from the display area to the peripheral area, a maximum width of the second isolation component is greater than a maximum width of the first isolation component.

6. The display panel according to claim 1, wherein: It also includes a spacer disposed between the first substrate and the second substrate, and the first isolation component and the second isolation component are made of the same material as the spacer.

7. A method for preparing a display panel, the display panel comprising a display area and a peripheral area surrounding the display area; the method comprising: A first substrate and a second substrate are formed, and a liquid crystal layer is formed between the first substrate and the second substrate; wherein, The method for preparing the display panel further includes: A first isolation component and a second isolation component are formed between the first substrate and the second substrate, the first isolation component and the second isolation component are located in the peripheral area and surround the display area; the first isolation component is closer to the display area than the second isolation component, and the second isolation component has at least one first groove portion penetrating in a direction from the display area to the peripheral area; A sealing assembly is formed between the first isolation assembly and the second isolation assembly.

8. The method for preparing a display panel according to claim 7, wherein: The first isolation component and the second isolation component are formed in the same patterning process.

9. The method for preparing a display panel according to claim 7, wherein: A first isolation component and a second isolation component are formed between the first substrate and the second substrate, including: An isolation component material layer is formed between the first substrate and the second substrate, and the isolation component material layer is exposed using a first mask as a mask, so that the isolation component material layer forms a non-exposure area, a semi-exposure area and a fully exposed area; the first mask includes a light-transmitting area, a non-light-transmitting area and a semi-light-transmitting area; and the transmittance of the semi-light-transmitting area in a direction from the display area to the peripheral area increases monotonically; the fully exposed area corresponds to the light-transmitting area, the semi-exposure area corresponds to the semi-light-transmitting area, and the non-light-transmitting area corresponds to the non-exposure area; The portion of the isolation component material layer located in the fully exposed area is completely removed, and the partial thickness of the isolation component material layer located in the semi-exposed area is removed to form a first isolation component and a second isolation component.

10. The method for preparing a display panel according to claim 7, wherein: The method further includes forming a spacer between the first substrate and the second substrate, and the spacer is formed in the same patterning process as the first isolation component and the second isolation component.

Citation Information

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