Display panel, preparation method for display panel, and display device

Abstract

A display panel (100), a preparation method for the display panel (100), and a display device. The display panel (100) comprises a retaining wall (130) located between a first substrate (110) and a second substrate (120); the retaining wall (130) defines a plurality of openings (1300); electronic ink (140) is accommodated in the openings (1300); the material of the retaining wall (130) comprises a polymer monomer; and a break (1301) in communication with at least two adjacent openings (1300) is formed in the retaining wall (130). When the display panel (100) is pressed and then deforms, the openings (1300) that are communicated with each other by means of the break (1301) can disperse pressure, thereby preventing the retaining wall (130) from being pressed caused by the excessive pressure of the electronic ink (140).

Description

Display panel, method for manufacturing display panel, and display device Technical Field

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

[0002] Display panels using electronic ink (also known as electronic paper display panels) offer advantages such as high readability, thinness, and low power consumption. They are primarily used in electronic labels, billboards, and e-books. These panels are primarily constructed by enclosing multiple openings with retaining walls, into which electronic ink is injected. By controlling the movement of ions in the electronic ink within each opening, the corresponding opening can be brightened or dimmed, allowing the display panel to display images or text.

[0003] However, the opening of the existing display panel is usually a closed structure. When the display panel is squeezed and deformed, the electronic ink in the opening of the deformed area will generate a large pressure, thereby squeezing the retaining wall, causing the retaining wall to deform or even be damaged. SUMMARY OF THE INVENTION

[0004] The embodiments of the present application provide a display panel, a method for preparing a display panel, and a display device, which aim to solve the problem that when an existing display panel is squeezed and deformed, the electronic ink in the opening of the deformed area will generate a large pressure, thereby squeezing the retaining wall, causing the retaining wall to deform or even be damaged.

[0005] An embodiment of the present application provides a display panel, which includes a first substrate and a second substrate arranged opposite to each other, and a retaining wall located between the first substrate and the second substrate, wherein the retaining wall encloses a plurality of openings, and electronic ink is contained in the openings. The material of the retaining wall includes a polymer monomer, and the retaining wall is provided with a fracture connecting at least two adjacent openings.

[0006] In some embodiments, the retaining wall is provided with a plurality of the slits along the circumference of at least one of the openings.

[0007] In some embodiments, the retaining wall includes a plurality of first blocking portions sequentially spaced apart along a first direction, the first blocking portions extending along a second direction, and the first direction and the second direction forming an angle; the retaining wall includes a plurality of second blocking portions sequentially spaced apart along the second direction, the second blocking portions extending along the first direction;

[0008] In which, multiple first blocking parts and multiple second blocking parts intersect to form multiple openings, at least part of the first blocking parts are disconnected at the intersection with the second blocking parts to form the break; and / or, at least part of the second blocking parts are disconnected at the intersection with the first blocking parts to form the break.

[0009] In some embodiments, the first blocking portion includes a plurality of first blocking segments sequentially spaced apart along the second direction, and the first blocking segments extend along the second direction; the second blocking portion includes a plurality of second blocking segments sequentially spaced apart along the first direction, and the second blocking segments extend along the first direction;

[0010] Two first blocking segments adjacent to each other along the first direction and two second blocking segments adjacent to each other along the second direction enclose the opening, and the first blocking segments and the second blocking segments adjacent to each other in the circumferential direction of the opening are spaced apart.

[0011] In some embodiments, the plurality of first blocking segments of the first blocking portion are staggered in sequence along the first direction; and the plurality of second blocking segments of the second blocking portion are staggered in sequence along the second direction.

[0012] In some embodiments, the plurality of first blocking segments of the first blocking portion overlap in the second direction; and the plurality of second blocking segments of the second blocking portion overlap in the first direction.

[0013] In some embodiments, each of the first blocking portions is disconnected at the intersection with all of the second blocking portions to form the break; and each of the second blocking portions is disconnected at the intersection with all of the first blocking portions to form the break.

[0014] In some embodiments, the width of the break is greater than or equal to 3 μm; the width of the break is less than or equal to 20 μm.

[0015] In some embodiments, the first substrate and the second substrate are flexible substrates; and / or,

[0016] A signal line is provided on the first substrate, and the orthographic projection of the retaining wall on the first substrate at least partially overlaps with the signal line.

[0017] In some embodiments, the polymer monomer includes methyl acrylate, ethyl acrylate, methyl dimethacrylate, or ethyl dimethacrylate.

[0018] The present application also provides a method for preparing a display panel, the method comprising:

[0019] An electronic ink cartridge is provided, comprising a first substrate and a second substrate disposed opposite to each other, and electronic ink located between the first substrate and the second substrate, wherein the electronic ink dissolves a polymer monomer;

[0020] The polymer monomers in the electronic ink are photocured to form a retaining wall connected between the first substrate and the second substrate. The retaining wall encloses a plurality of openings for accommodating the electronic ink, and the retaining wall is provided with a fracture connecting at least two adjacent openings.

[0021] An embodiment of the present application also provides a display device, which includes the display panel as described above, and the display panel includes a first substrate and a second substrate arranged opposite to each other, and a retaining wall located between the first substrate and the second substrate, the retaining wall enclosing a plurality of openings, the openings containing electronic ink, the material of the retaining wall including a polymer monomer, and the retaining wall having a fracture connecting at least two adjacent openings. Beneficial effects

[0022] The display panel provided in the embodiments of the present application utilizes a retaining wall made of a polymer monomer. This allows electronic ink containing the polymer monomer to be photocured to form a retaining wall made of the polymer monomer, connected between the first and second substrates. This provides a connection point between the retaining wall and both the first and second substrates, resulting in a more stable connection and increased structural strength, making it less susceptible to deformation or damage. Furthermore, the retaining wall effectively supports the first and second substrates, thereby improving the display panel's compressive strength.

[0023] On this basis, by providing the retaining wall with a fracture connecting at least two adjacent openings, when the display panel is squeezed and deformed near the openings connected to each other through the fracture, the electronic ink in the deformed opening can flow through the fracture into other openings, so that the openings connected to each other through the fracture can share the pressure, avoiding the problem that the electronic ink pressure in the opening is too high and squeezes the retaining wall, causing the retaining wall to be deformed or even damaged, thereby improving the pressure resistance of the retaining wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0025] FIG1 is a partial cross-sectional view of an embodiment of a display panel provided in an embodiment of the present application;

[0026] FIG2 is a partial view of a top view of a first embodiment of a retaining wall provided in an embodiment of the present application;

[0027] FIG3 is a partial view of a top view of a second embodiment of a retaining wall provided in an embodiment of the present application;

[0028] FIG4 is a partial view of a top view of a third embodiment of a retaining wall provided in an embodiment of the present application;

[0029] FIG5 is a partial view of a top view of a fourth embodiment of a retaining wall provided in an embodiment of the present application;

[0030] FIG6 is a partial view of a top view of a fifth embodiment of a retaining wall provided in an embodiment of the present application;

[0031] FIG7 is a schematic flow chart of an embodiment of a method for preparing an array substrate provided in an embodiment of the present application;

[0032] FIG8 is a structural schematic diagram of the array substrate manufacturing method according to an embodiment of the present application after providing a first substrate;

[0033] FIG9 is a schematic structural diagram of an array substrate after electronic ink is injected in a method for preparing the array substrate according to an embodiment of the present application;

[0034] FIG10 is a structural schematic diagram of the array substrate manufacturing method provided in an embodiment of the present application after the second substrate is covered on the side of the frame facing away from the first substrate.

[0035] Description of reference numerals:

[0036] Display panel 100 ; accommodating cavity 1000 ; first substrate 110 ; second substrate 120 ; blocking wall 130 ; first blocking portion 131 ; first blocking section 1311 ; second blocking portion 132 ; second blocking section 1321 ; opening 1300 ; gap 1301 ; electronic ink 140 ; ​​frame 150 ; first direction X; second direction Y. Modes for Carrying Out the Invention

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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 those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0038] The embodiments of the present application provide a display panel, a method for manufacturing a display panel, and a display device, which are described in detail below.

[0039] First, an embodiment of the present application provides a display panel.

[0040] FIG1 is a partial view of a cross-sectional view of an embodiment of a display panel provided by an embodiment of the present application. As shown in FIG1 , the display panel 100 includes a first substrate 110 and a second substrate 120 disposed opposite to each other, and a retaining wall 130 located between the first substrate 110 and the second substrate 120. The retaining wall 130 encloses a plurality of openings 1300, and the openings 1300 contain electronic ink 140. An electric field corresponding to each of the plurality of openings 1300 is formed between the first substrate 110 and the second substrate 120. According to the image or text to be displayed by the display panel 100, the electric field corresponding to each opening 1300 can be adjusted so that the ions in the electronic ink 140 in each opening 1300 move in a predetermined direction, thereby brightening or darkening each opening 1300, so that the display panel 100 displays the image or text.

[0041] The first substrate 110 includes an array substrate and a plurality of pixel electrodes disposed on a side of the array substrate facing the second substrate 120. The plurality of pixel electrodes correspond one-to-one with the plurality of openings 1300. The array substrate includes a plurality of thin film transistors, which are connected one-to-one with the plurality of pixel electrodes, thereby adjusting the voltage of each pixel electrode via the array substrate. The first substrate 110 can be a flexible substrate or a rigid substrate such as a glass plate or a plastic plate.

[0042] The second substrate 120 includes a cover plate, and a common electrode layer is provided on one side surface of the cover plate. The voltage of each pixel electrode is controlled by the array substrate, and the electric field between each pixel electrode and the common electrode can be adjusted, thereby adjusting the electric field corresponding to each opening 1300. The second substrate 120 can be a flexible substrate or a rigid substrate such as a glass plate or a plastic plate.

[0043] The method of adjusting the voltage between the pixel electrode and the common electrode through the array substrate is a prior art and will not be described in detail here.

[0044] In some embodiments, the material of the retaining wall 130 includes a polymer monomer, thereby making the connection between the retaining wall 130 and the first substrate 110 and the second substrate 120 more stable and having a higher structural strength, thereby enabling the display panel 100 to have a higher pressure resistance.

[0045] It can be understood that since the polymer monomer can be photocured, an electronic ink box (as shown in Figure 10) can be prepared first, which includes a first substrate 110 and a second substrate 120 arranged relatively to each other, and an electronic ink 140 located between the first substrate 110 and the second substrate 120, and the electronic ink 140 includes a polymer monomer; then, the polymer monomer in the electronic ink 140 is photocured to form a retaining wall 130 connected between the first substrate 110 and the second substrate 120, and the retaining wall 130 has a connecting point with the first substrate 110 and the second substrate 120. The connection between the retaining wall 130 and the first substrate 110 and the second substrate 120 is more stable, the structural strength is higher, and it is not easy to be deformed or damaged. Moreover, the retaining wall 130 can form an effective support between the first substrate 110 and the second substrate 120 to improve the compressive performance of the display panel 100.

[0046] The polymer monomers include methyl acrylate, ethyl acrylate, methyl dimethacrylate, ethyl dimethacrylate and other materials that can be cured by light.

[0047] In addition, a mask can be used to expose the electronic ink 140 between the first substrate 110 and the second substrate 120 to form a barrier wall 130 enclosing a plurality of openings 1300 between the first substrate 110 and the second substrate 120. The light used to expose the electronic ink 140 is ultraviolet light.

[0048] In some embodiments, as shown in Figures 2 and 3, the retaining wall 130 is provided with a slit 1301 connecting at least two adjacent openings 1300. Thus, when the display panel 100 is squeezed and deformed near the openings 1300 interconnected by the slit 1301, the electronic ink 140 in the deformed opening 1300 can flow through the slit 1301 into the other adjacent openings 1300, allowing the openings 1300 interconnected by the slit 1301 to share the pressure. This prevents excessive pressure on the electronic ink 140 in the openings 1300 from squeezing the retaining wall 130, causing deformation or even damage to the retaining wall 130, thereby improving the retaining wall 130's ability to withstand pressure.

[0049] The retaining wall 130 may be provided with a plurality of slits 1301 along the circumference of at least one opening 1300. Thus, the opening 1300 can communicate with one or more adjacent openings 1300 via different slits 1301, so that when the opening 1300 is squeezed and deformed, the electronic ink 140 in the opening 1300 can flow more quickly into the adjacent openings 1300.

[0050] In some embodiments, as shown in Figures 2 and 3, the plurality of openings 1300 enclosed by the retaining wall 130 are sequentially distributed along the first direction X and the second direction Y. That is, the retaining wall 130 encloses a plurality of columns of openings 1300 sequentially distributed along the first direction X, and the plurality of openings 1300 in each column of openings 1300 extend along the second direction Y, wherein the first direction X and the second direction Y form an angle.

[0051] The opening 1300 may be provided with one or more slits 1301 on one side along the first direction X or the second direction Y, thereby connecting the opening 1300 with other adjacent openings 1300 on the side along the first direction X or the second direction Y. Alternatively, the opening 1300 may be provided with one or more slits 1301 on the side opposite to the first direction X or the second direction Y, thereby connecting the opening 1300 with other adjacent openings 1300 on the side opposite to the first direction X or the second direction Y.

[0052] Specifically, as shown in FIG2 , the first direction X is perpendicular to the second direction Y, and multiple openings 1300 in the same row of openings 1300 overlap in the second direction Y, and multiple rows of openings 1300 overlap in the first direction X. Alternatively, as shown in FIG3 , multiple openings 1300 in the same row of openings 1300 may be offset in sequence by a certain distance along the first direction X, and multiple rows of openings 1300 may be offset in sequence by a certain distance along the second direction Y. Slits 1301 are provided on each of the openings 1300 along the first direction X, the second direction Y, the side opposite to the first direction X, and the side opposite to the second direction Y, thereby connecting the opening 1300 to other adjacent openings 1300 on all sides.

[0053] As shown in Figures 2 and 3, the retaining wall 130 between the first substrate 110 and the second substrate 120 includes a plurality of first blocking portions 131 spaced apart along a first direction X. The first blocking portions 131 extend along a second direction Y, with the first direction X forming an angle with the second direction Y. The retaining wall 130 also includes a plurality of second blocking portions 132 spaced apart along the second direction Y, extending along the first direction X. The plurality of first blocking portions 131 and the plurality of second blocking portions 132 intersect to form a plurality of openings 1300, such that the plurality of openings 1300 formed by the retaining wall 130 are sequentially distributed along the first direction X and the second direction Y.

[0054] In some embodiments, at least a portion of the first blocking portion 131 can be disconnected at the intersection with the second blocking portion 132 to form a slit 1301, so that the slit 1301 connects the two openings 1300 distributed on both sides of the slit 1301 along the first direction X. Specifically, one first blocking portion 131 can be disconnected at the intersection with one second blocking portion 132 to form the slit 1301; one first blocking portion 131 can also be disconnected at the intersection with multiple second blocking portions 132 to form the slit 1301; or multiple first blocking portions 131 can be disconnected at the intersection with one second blocking portion 132 to form the slit 1301; furthermore, multiple first blocking portions 131 can also be disconnected at the intersection with multiple second blocking portions 132 to form the slit 1301.

[0055] In addition, at least some of the second blocking portions 132 may be disconnected at the intersection with the first blocking portion 131 to form a slit 1301, so that the slit 1301 connects the two openings 1300 distributed on both sides of the slit 1301 along the second direction Y. Specifically, one second blocking portion 132 may be disconnected at the intersection with one first blocking portion 131 to form the slit 1301; multiple second blocking portions 132 may be disconnected at the intersection with one first blocking portion 131 to form the slit 1301; or one second blocking portion 132 may be disconnected at the intersection with multiple first blocking portions 131 to form the slit 1301; furthermore, multiple second blocking portions 132 may be disconnected at the intersection with multiple first blocking portions 131 to form the slit 1301.

[0056] It should be noted that at least a portion of the first blocking portion 131 may be disconnected at the intersection with the second blocking portion 132 to form the slit 1301, or at least a portion of the second blocking portion 132 may be disconnected at the intersection with the first blocking portion 131 to form the slit 1301. Alternatively, at least a portion of the first blocking portion 131 may be disconnected at the intersection with the second blocking portion 132 to form the slit 1301, and at least a portion of the second blocking portion 132 may be disconnected at the intersection with the first blocking portion 131 to form the slit 1301. Of course, the latter method can form more slits 1301, thereby maintaining communication between more adjacent openings 1300.

[0057] In some preferred embodiments, each first blocking portion 131 is disconnected at the intersection with all the second blocking portions 132 to form a break 1301, and each second blocking portion 132 is disconnected at the intersection with all the first blocking portions 131 to form a break 1301, so that all openings 1300 formed by the retaining wall 130 can be connected with other adjacent openings 1300.

[0058] Specifically, the first blocking portion 131 includes a plurality of first blocking segments 1311 spaced apart along the second direction Y, each extending along the second direction Y. The second blocking portion 132 includes a plurality of second blocking segments 1321 spaced apart along the first direction X, each extending along the first direction X. Two adjacent first blocking segments 1311 along the first direction X and two adjacent second blocking segments 1321 along the second direction Y enclose an opening 1300. The first blocking segments 1311 and the second blocking segments 1321 circumferentially adjacent to the opening 1300 are spaced apart. Thus, a gap 1301 is formed between the first blocking segments 1311 and the second blocking segments 1321 circumferentially adjacent to the opening 1300, allowing the opening 1300 to communicate with the other openings 1300 on either side through the gap 1301.

[0059] As shown in FIG3 , the multiple first blocking segments 1311 of the first blocking portion 131 can be sequentially staggered along the first direction X; and the multiple second blocking segments 1321 of the second blocking portion 132 can be sequentially staggered along the second direction Y. Alternatively, as shown in FIG2 , the multiple first blocking segments 1311 of the first blocking portion 131 can overlap in the second direction Y; and the multiple second blocking segments 1321 of the second blocking portion 132 can overlap in the first direction X.

[0060] In some embodiments, the width of the slits 1301 can be greater than or equal to 3 μm, so that the electronic ink 140 in the opening 1300 can quickly flow through the slits 1301 into other adjacent openings 1300. The width of the slits 1301 can be 5 μm, 8 μm, 10 μm, 13 μm, 17 μm, 19 μm, etc., depending on factors such as the number of slits 1301 and the size of the opening 1300.

[0061] In addition, the width of the slits 1301 can be less than or equal to 20 μm to prevent the slits 1301 from being too wide, which would reduce the contact area between the retaining wall 130 and the first and second substrates 110 and 120, thereby affecting the connection stability between the retaining wall 130 and the first and second substrates 110 and 120. The width of the slits 1301 can be 4 μm, 7 μm, 9 μm, 11 μm, 15 μm, 18 μm, etc., and can be determined based on factors such as the number of slits 1301 and the size of the opening 1300.

[0062] In some preferred embodiments, the width of the break 1301 can be greater than or equal to 3 μm and less than or equal to 20 μm, so that the break 1301 can have a better pressure-dividing effect on the electronic ink 140 in the opening 1300, while allowing the retaining wall 130 to have sufficient contact area with the first substrate 110 and the second substrate 120 to ensure the connection stability between the retaining wall 130 and the first substrate 110 and the second substrate 120.

[0063] In some embodiments, the first substrate 110 is provided with a signal line (not shown in the figure), and the blocking wall 130 and the signal line at least partially overlap in the thickness direction of the first substrate 110, so that the blocking wall 130 can block at least a portion of the signal line, and it is beneficial to improve the resolution of the display panel 100.

[0064] In some embodiments, the first substrate 110 and the second substrate 120 can be flexible substrates, thereby making the first display substrate and the second display substrate display panel 100 a flexible display panel with improved bendability. Furthermore, because the retaining wall 130 in the embodiment of the present application is connected between the first substrate 110 and the second substrate 120, the distance between the first substrate 110 and the second substrate 120 can be kept substantially unchanged after the display panel 100 is bent, which helps maintain the uniformity of the thickness of the electronic ink 140 box.

[0065] In other embodiments, the retaining wall 130 may be formed to enclose a plurality of openings 1300, and the openings 1300 may be sealed openings 1300. The openings 1300 may be rectangular (as shown in FIG4 ), circular (as shown in FIG5 ), or regular hexagonal (as shown in FIG6 ). The plurality of openings 1300 enclosed by the retaining wall 130 may be arranged in an array or in other manners, which are not limited herein.

[0066] In order to better prepare the above-mentioned display panel 100, the embodiment of the present application further provides a method for preparing the display panel 100. As shown in FIG7 , the method for preparing the display panel includes steps S210 and S220, which are described in detail as follows:

[0067] S210 , providing an electronic ink box, the electronic ink box comprising a first substrate 110 and a second substrate 120 oppositely disposed, and electronic ink 140 located between the first substrate 110 and the second substrate 120 , wherein the electronic ink 140 contains dissolved polymer monomers.

[0068] It should be noted that the electronic ink cartridge can be prepared in advance or temporarily prepared. As shown in Figures 8 to 10, step S210 may include steps S211 to S214, which are described in detail as follows:

[0069] S211 , providing a first substrate 110 (as shown in FIG8 ).

[0070] The first substrate 110 includes an array substrate and a plurality of pixel electrodes disposed on a side of the array substrate facing the second substrate 120. The plurality of pixel electrodes correspond one-to-one with the plurality of openings 1300. The array substrate includes a plurality of thin film transistors, which are connected one-to-one with the plurality of pixel electrodes, thereby adjusting the voltage of each pixel electrode via the array substrate. The structure of the first substrate 110 can refer to the above embodiment and will not be described in detail here.

[0071] S212 , disposing a frame 150 on one side surface of the first substrate 110 to form a receiving cavity 1000 on the one side surface of the first substrate 110 .

[0072] As shown in FIG. 9 , the frame 150 extends along the edge of the first substrate 110 , and the inner surface of the frame 150 and a side surface of the first substrate 110 facing the frame 150 together form a receiving cavity 1000 .

[0073] S213 , injecting electronic ink 140 dissolved with polymer monomers into the receiving cavity 1000 (as shown in FIG9 ).

[0074] The polymer monomers include methyl acrylate, ethyl acrylate, methyl dimethacrylate, ethyl dimethacrylate and other materials that can be cured by light.

[0075] S214 , covering the second substrate 120 on the side of the frame 150 away from the first substrate 110 to form an electronic ink box (as shown in FIG10 ).

[0076] Among them, the second substrate 120 includes a cover plate, and a common electrode layer is provided on one side surface of the cover plate. The voltage of each pixel electrode is controlled by the array substrate, and the electric field between each pixel electrode and the common electrode can be adjusted, thereby realizing the adjustment of the electric field corresponding to each opening 1300.

[0077] S220, photocuring the polymer monomer in the electronic ink 140 to form a retaining wall 130 connected between the first substrate 110 and the second substrate 120, the retaining wall 130 encloses a plurality of openings 1300 for accommodating the electronic ink 140, and the retaining wall 130 is provided with a break 1301 connecting at least two adjacent openings 1300.

[0078] The display panel manufacturing method provided in the embodiments of the present application forms a retaining wall 130 connected between the first substrate 110 and the second substrate 120 by photocuring the polymer monomers in the electronic ink 140. This provides retaining wall 130 with a connection point between the first substrate 110 and the second substrate 120. This ensures a more stable connection between retaining wall 130 and the first substrate 110 and the second substrate 120, increases structural strength, and reduces the risk of deformation or damage. Furthermore, retaining wall 130 effectively supports the first substrate 110 and the second substrate 120, thereby improving the compressive resistance of the display panel 100.

[0079] On this basis, by providing the retaining wall 130 with a slit 1301 connecting at least two adjacent openings 1300, when the display panel 100 is squeezed and deformed near the openings 1300 that are interconnected through the slit 1301, the electronic ink 140 in the deformed opening 1300 can flow through the slit 1301 into other openings 1300, so that the openings 1300 that are interconnected through the slit 1301 can share the pressure, thereby avoiding excessive pressure of the electronic ink 140 in the opening 1300, which would squeeze the retaining wall 130 and cause deformation or even damage of the retaining wall 130, thereby improving the pressure resistance of the retaining wall 130.

[0080] The electronic ink 140 between the first substrate 110 and the second substrate 120 can be exposed using a mask to form a barrier wall 130 having a plurality of openings 1300 between the first substrate 110 and the second substrate 120. The light used to expose the electronic ink 140 is ultraviolet light.

[0081] It should be noted that the order of the steps in the method for preparing the display panel provided in the embodiment of the present application is not limited, that is, the steps in the method for preparing the display panel provided in the embodiment of the present application are not necessarily performed in the order described in the embodiment of the present application, and the order of the steps can also be adjusted according to actual conditions, as long as it can achieve the preparation of the display panel 100 in the embodiment of the present application.

[0082] An embodiment of the present application also provides a display device, which includes a display panel. The specific structure of the display panel refers to the above embodiment. Since the display device 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 repeated here.

[0083] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The above is a detailed introduction to a display panel, a method for preparing a display panel, and a display device provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, based on the ideas of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A display panel, wherein: The display panel includes a first substrate and a second substrate that are arranged opposite to each other, and a retaining wall located between the first substrate and the second substrate, wherein the retaining wall encloses a plurality of openings, wherein electronic ink is contained in the openings, the material of the retaining wall includes a polymer monomer, and the retaining wall is provided with a break that connects at least two adjacent openings.

2. The display panel according to claim 1, wherein: The retaining wall is provided with a plurality of the breaks along the circumference of at least one of the openings.

3. The display panel according to claim 2, wherein: The retaining wall comprises a plurality of first blocking portions which are sequentially spaced and distributed along a first direction, the first blocking portions extend along a second direction, and the first direction and the second direction form an angle; the retaining wall comprises a plurality of second blocking portions which are sequentially spaced and distributed along the second direction, the second blocking portions extend along the first direction; Among them, multiple first blocking parts and multiple second blocking parts intersect to form multiple openings, at least part of the first blocking parts are disconnected at the intersection with the second blocking parts to form the break; and / or, at least part of the second blocking parts are disconnected at the intersection with the first blocking parts to form the break.

4. The display panel according to claim 3, wherein: The first blocking portion includes a plurality of first blocking segments sequentially spaced apart along a second direction, and the first blocking segments extend along the second direction; the second blocking portion includes a plurality of second blocking segments sequentially spaced apart along the first direction, and the second blocking segments extend along the first direction; Two first blocking segments adjacent to each other along the first direction and two second blocking segments adjacent to each other along the second direction enclose the opening, and the first blocking segments and the second blocking segments adjacent to each other in the circumferential direction of the opening are arranged at intervals.

5. The display panel according to claim 4, wherein: The plurality of first blocking sections of the first blocking portion are staggered in sequence along the first direction; the plurality of second blocking sections of the second blocking portion are staggered in sequence along the second direction.

6. The display panel according to claim 4, wherein: The plurality of first blocking sections of the first blocking portion overlap in the second direction; the plurality of second blocking sections of the second blocking portion overlap in the first direction.

7. The display panel according to claim 3, wherein: Each of the first blocking parts is disconnected at the intersection with all the second blocking parts to form the break; each of the second blocking parts is disconnected at the intersection with all the first blocking parts to form the break.

8. The display panel according to claim 1, wherein: The width of the break is greater than or equal to 3 μm; the width of the break is less than or equal to 20 μm.

9. The display panel according to claim 1, wherein: The first substrate and the second substrate are flexible substrates; and / or, The first substrate is provided with a signal line, and the orthographic projection of the blocking wall on the first substrate at least partially overlaps with the signal line.

10. The display panel according to claim 1, wherein: The polymer monomer includes methyl acrylate, ethyl acrylate, methyl dimethacrylate or ethyl dimethacrylate.

11. A method for preparing a display panel, wherein: The method comprises: An electronic ink box is provided, the electronic ink box comprising a first substrate and a second substrate arranged opposite to each other, and electronic ink located between the first substrate and the second substrate, wherein the electronic ink dissolves a polymer monomer; The polymer monomers in the electronic ink are photocured to form a retaining wall connected between the first substrate and the second substrate, the retaining wall encloses a plurality of openings for accommodating the electronic ink, and the retaining wall is provided with a break connecting at least two adjacent openings.

12. A display device, wherein: The display device includes a display panel, which includes a first substrate and a second substrate arranged opposite to each other, and a retaining wall located between the first substrate and the second substrate, wherein the retaining wall encloses a plurality of openings, wherein electronic ink is contained in the openings, the material of the retaining wall includes a polymer monomer, and the retaining wall is provided with a fracture connecting at least two adjacent openings.

13. The display device according to claim 12, wherein: The retaining wall is provided with a plurality of the breaks along the circumference of at least one of the openings.

14. The display device according to claim 13, wherein: The retaining wall comprises a plurality of first blocking portions which are sequentially spaced and distributed along a first direction, the first blocking portions extend along a second direction, and the first direction and the second direction form an angle; the retaining wall comprises a plurality of second blocking portions which are sequentially spaced and distributed along the second direction, the second blocking portions extend along the first direction; Among them, multiple first blocking parts and multiple second blocking parts intersect to form multiple openings, at least part of the first blocking parts are disconnected at the intersection with the second blocking parts to form the break; and / or, at least part of the second blocking parts are disconnected at the intersection with the first blocking parts to form the break.

15. The display device according to claim 14, wherein: The first blocking portion includes a plurality of first blocking segments sequentially spaced apart along a second direction, and the first blocking segments extend along the second direction; the second blocking portion includes a plurality of second blocking segments sequentially spaced apart along the first direction, and the second blocking segments extend along the first direction; Two first blocking segments adjacent to each other along the first direction and two second blocking segments adjacent to each other along the second direction enclose the opening, and the first blocking segments and the second blocking segments adjacent to each other in the circumferential direction of the opening are arranged at intervals.

16. The display device according to claim 15, wherein: The plurality of first blocking sections of the first blocking portion are staggered in sequence along the first direction; the plurality of second blocking sections of the second blocking portion are staggered in sequence along the second direction.

17. The display device according to claim 15, wherein: The plurality of first blocking sections of the first blocking portion overlap in the second direction; the plurality of second blocking sections of the second blocking portion overlap in the first direction.

18. The display device according to claim 14, wherein: Each of the first blocking parts is disconnected at the intersection with all the second blocking parts to form the break; each of the second blocking parts is disconnected at the intersection with all the first blocking parts to form the break.

19. The display device according to claim 12, wherein: The width of the break is greater than or equal to 3 μm; the width of the break is less than or equal to 20 μm.

20. The display device according to claim 12, wherein: The first substrate and the second substrate are flexible substrates; and / or, The first substrate is provided with a signal line, and the orthographic projection of the blocking wall on the first substrate at least partially overlaps with the signal line.

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