Color filter substrate and manufacturing method therefor, and display panel

Abstract

The present application relates to a color filter substrate and a manufacturing method therefor, and a display panel. A first color-coded resistor is arranged on the side of a first electrode that is away from a first substrate, and a second color-coded resistor is arranged on the side of a second electrode that is away from the first substrate, wherein the first color-coded resistor comprises a plurality of first pigment particles, and the second color-coded resistor comprises a plurality of second pigment particles, the first pigment particles and the second pigment particles all being charged.

Description

Color filter substrate and its manufacturing method, display panel

[0001] This application claims priority to Chinese Patent Application No. 202411579735.4, filed with the Chinese Patent Office on November 6, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of display technology, and in particular to a color filter substrate and its manufacturing method, and a display panel. Background Technology

[0003] Liquid crystal displays (LCDs) have advantages such as low radiation, small size, and low power consumption, and are widely used in various electronic devices such as laptops and televisions. An LCD panel typically consists of an array substrate, a color filter (CF) substrate, liquid crystal (LC) sandwiched between the array substrate and the CF substrate, photo spacers (PS), and a sealing frame.

[0004] The main function of the color filter substrate is to enable the liquid crystal display to produce full-color images. The color filter substrate usually includes three color resists: RGB. The production of the three color resists requires three exposure, development and baking processes. The whole process is often accompanied by huge resource consumption. For example: (1) Low material utilization rate; In the production process of any color resist, after the photoresist is scraped all over the surface of the substrate after cleaning, about 1 / 3 of the color resist is left after exposure and development by masking. Then, the excess solvent is removed by baking. The material utilization rate of the whole color resist process is only 1 / 3, which is extremely low. (2) Solvent cannot be recycled; Most of the solvents used in photoresist (about 70% to 80%) are mixed solvents, which are usually not recyclable or have extremely high recycling costs. At the same time, they also bring huge environmental problems to the atmosphere. (3) High energy consumption; Three exposure and baking processes require huge electrical energy consumption. Technical solutions

[0005] This application provides a color filter substrate and its manufacturing method, as well as a display panel, which can reduce material loss and resource consumption in the color resist layer process.

[0006] This application provides a color filter substrate, which includes:

[0007] First substrate;

[0008] An electrode layer is disposed on the first substrate, and the electrode layer includes a plurality of first electrodes and a plurality of second electrodes disposed at intervals.

[0009] A color resist layer is disposed on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are disposed on the side of the first electrode away from the first substrate, and the second color resists are disposed on the side of the second electrode away from the first substrate.

[0010] The first color resist comprises a plurality of first pigment particles, and the second color resist comprises a plurality of second pigment particles, wherein both the first pigment particles and the second pigment particles are charged.

[0011] In accordance with the above-mentioned objectives of this application, embodiments of this application also provide a method for manufacturing a color filter substrate, the method comprising the following steps:

[0012] An electrode layer is formed on a first substrate, the electrode layer including a plurality of first electrodes and a plurality of second electrodes spaced apart;

[0013] A color resist layer is formed by electrophoretic deposition on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are formed on the side of the first electrode away from the first substrate, and the second color resists are formed on the side of the second electrode away from the first substrate. The first color resists include first pigment particles, and the second color resists include second pigment particles. Both the first pigment particles and the second pigment particles are charged.

[0014] In accordance with the above-mentioned objectives of this application, embodiments of this application also provide a display panel, the display panel comprising an array substrate and a color filter substrate, wherein the array substrate and the color filter substrate are disposed opposite to each other, and the color filter substrate comprises:

[0015] First substrate;

[0016] An electrode layer is disposed on the first substrate, and the electrode layer includes a plurality of first electrodes and a plurality of second electrodes disposed at intervals.

[0017] A color resist layer is disposed on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are disposed on the side of the first electrode away from the first substrate, and the second color resists are disposed on the side of the second electrode away from the first substrate.

[0018] The first color resist comprises a plurality of first pigment particles, and the second color resist comprises a plurality of second pigment particles, wherein both the first pigment particles and the second pigment particles are charged. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0021] Figure 1 is a schematic diagram of a color filter substrate provided in an embodiment of this application;

[0022] Figure 2 is a schematic diagram of a structure of a first pigment particle, a second pigment particle, or a third pigment particle provided in an embodiment of this application.

[0023] Figure 3 is a schematic diagram of an electrode layer provided in an embodiment of this application;

[0024] Figure 4 is a schematic diagram of a color resist layer provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of another structure of the color filter substrate provided in the embodiment of this application;

[0026] Figure 6 is a flowchart of the fabrication method of the color filter substrate provided in the embodiment of this application;

[0027] Figures 7 to 10 are schematic diagrams of the fabrication process of a color filter substrate provided in the embodiments of this application;

[0028] Figures 11 to 13 are schematic diagrams of another fabrication process of the color filter substrate provided in the embodiments of this application;

[0029] Figure 14 is a schematic diagram of a display panel provided in an embodiment of this application;

[0030] Figure 15 is a schematic diagram of another structure of the display panel provided in an embodiment of this application.

[0031] Reference numerals: 10, First substrate; 20, Electrode layer; 21, First electrode; 22, Second electrode; 23, Third electrode; 24, First trace; 25, Second trace; 26, Third trace; 30, Color resist layer; 31, First color resist; 311, First pigment particle; 3111, First pigment molecule; 3112, First molecular chain; 3113, First charged group; 32, Second color resist; 321, Second pigment particle; 3211, Second pigment molecule; 3212, Second molecular chain; 3213, Second charged group; 33, Third color resist; 331, Third pigment particle; 3311, Third pigment molecule; 3312, Third molecular chain; 3313, Third charged group; 40, Black matrix layer; 50, Array substrate; 51, Second substrate; 52, Thin film transistor layer; 51, Pixel electrode; 61. First power supply; 62. Second power supply; 63. Third power supply; 64. Fourth power supply; 71. Mask; 80. Liquid crystal layer. Embodiments of the present invention

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0033] Please refer to Figures 1 and 2. An embodiment of this application provides a color filter substrate, which includes a first substrate 10, an electrode layer 20, and a color resist layer 30.

[0034] The electrode layer 20 is disposed on the first substrate 10, and the electrode layer 20 includes a plurality of first electrodes 21 and a plurality of second electrodes 22 disposed at intervals; the color resist layer 30 is disposed on the side of the electrode layer 20 away from the first substrate 10, and the color resist layer 30 includes a plurality of first color resists 31 and a plurality of second color resists 32, the first color resists 31 are disposed on the side of the first electrodes 21 away from the first substrate 10, and the second color resists 32 are disposed on the side of the second electrodes 22 away from the first substrate 10.

[0035] Furthermore, the first color resist 31 includes a plurality of first pigment particles 311, and the second color resist 32 includes a plurality of second pigment particles 321. Both the first pigment particles 311 and the second pigment particles 321 are charged.

[0036] In the implementation process, the embodiments of this application charge both the first pigment particles 311 and the second pigment particles 321. Then, by applying voltage to the first electrode 21 and the second electrode 22, the first pigment particles 311 and the second pigment particles 321 are deposited on the first electrode 21 and the second electrode 22 respectively, thereby forming the first color resist 31 and the second color resist 32 respectively. Compared with the prior art, this improves the utilization rate of the color resist material, reduces the loss of the color resist material, reduces the energy consumption of the color resist layer 30 in the process, and thus reduces the energy consumption of the color filter substrate in the process.

[0037] In one embodiment of this application, the first pigment particle is connected to a first charged group, and the second pigment particle is connected to a second charged group.

[0038] In one embodiment of this application, the charge of the first charged group is different from that of the second charged group.

[0039] In one embodiment of this application, the charge of the first charged group is the same as that of the second charged group.

[0040] In one embodiment of this application, the first pigment particle has a first potential, the second pigment particle has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

[0041] In one embodiment of this application, the electrode layer further includes a plurality of third electrodes disposed at intervals from the first electrode and the second electrode;

[0042] The color resist layer also includes a plurality of third color resists, which are disposed on the side of the third electrode away from the first substrate;

[0043] The third color resist comprises a plurality of third pigment particles, and the third pigment particles are connected to a third charged group.

[0044] In one embodiment of this application, the third charged group has the same electrical charge as the first charged group, or the third charged group has the same electrical charge as the second charged group.

[0045] In one embodiment of this application, the first charged group, the second charged group, and the third charged group are selected from -COO. - Or -NH3 + .

[0046] In one embodiment of this application, the first pigment particle is connected to a first molecular chain, and the first charged group is at least connected to the first molecular chain;

[0047] The second pigment particle is attached to a second molecular chain, and the second charged group is attached to at least the second molecular chain;

[0048] The third pigment particle is connected to a third molecular chain, and the third charged group is connected to at least the third molecular chain.

[0049] In one embodiment of this application, the first molecular chain, the second molecular chain, and the third molecular chain comprise at least one of silane and resin structures.

[0050] In one embodiment of this application, the color filter substrate further includes a black matrix layer, wherein the orthographic projection of the black matrix layer on the first substrate is located between the orthographic projections of adjacent first and second color resists on the first substrate, between the orthographic projections of adjacent first and third color resists on the first substrate, and between the orthographic projections of adjacent second and third color resists on the first substrate.

[0051] In one embodiment of this application, the black matrix layer is disposed on the first substrate and is located between adjacent first electrodes and second electrodes, between adjacent first electrodes and third electrodes, and between adjacent second electrodes and third electrodes.

[0052] In one embodiment of this application, the color filter substrate further includes a first trace, a second trace, and a third trace disposed on the first substrate. A plurality of first electrodes are connected through the first trace, a plurality of second electrodes are connected through the second trace, and a plurality of third electrodes are connected through the third trace.

[0053] In one embodiment of this application, the first color resist and the second color resist are formed by electrophoretic deposition.

[0054] It should be noted that the first pigment particle 311 is connected to a first charged group 3113, so that the first pigment particle 311 is charged, and the second pigment particle 321 is connected to a second charged group 3213, so that the second pigment particle 321 is charged.

[0055] Specifically, please continue to refer to Figures 1 and 2. The color filter substrate includes a substrate 10, an electrode layer 20 disposed on the substrate 10, and a color resist layer 30 disposed on the side of the electrode layer 20 away from the first substrate 10.

[0056] The first substrate 10 can be a glass substrate; the electrode layer 20 is disposed on the first substrate 10 and includes a plurality of first electrodes 21 and a plurality of second electrodes 22 disposed at intervals; the color resist layer 30 includes a plurality of first color resists 31 and a plurality of second color resists 32, wherein the first color resists 31 are located on the side of the first electrodes 21 away from the first substrate 10, and the second color resists 32 are located on the side of the second electrodes 22 away from the first substrate 10; wherein the color of the first color resists 31 is different from the color of the second color resists 32, thereby enabling the color resist layer 30 to achieve a color display function.

[0057] In some embodiments, the first color resist 31 includes a plurality of first pigment particles 311, and the plurality of first pigment particles 311 can be aggregated together by van der Waals attraction to form the first color resist 31; wherein, the first pigment particle 311 includes a first pigment molecule 3111, a first molecular chain 3112 and a first charged group 3113, the first molecular chain 3112 is attached to the first pigment molecule 3111, and the first charged group 3113 is attached to at least the first molecular chain 3112; further, the first charged group 3113 can be attached to the first molecular chain 3112 and the first pigment molecule 3111.

[0058] It should be noted that, since the first molecular chain 3112 can provide more connection sites, the embodiments of this application can connect the first molecular chain 3112 to the first pigment molecule 3111, thereby enabling the formation of more first charged groups 3113 on the first pigment particle 311, increasing the charge of the first pigment particle 311. As a result, when the first electrode 21 is subjected to voltage during the process, it is beneficial for the first pigment particle 311 to be deposited on the first electrode 21 to form the first color resist 31.

[0059] In some embodiments, the first molecular chain 3112 includes at least one of a silane and a resin structure.

[0060] In some embodiments, the second color resist 32 includes a plurality of second pigment particles 321, and the plurality of second pigment particles 321 can be aggregated together by van der Waals attraction to form the second color resist 32; wherein, the second pigment particles 321 include second pigment molecules 3211, second molecular chains 3212 and second charged groups 3213, the second molecular chains 3212 are attached to the second pigment molecules 3211, and the second charged groups 3213 are at least attached to the second molecular chains 3212; further, the second charged groups 3213 can be attached to the second molecular chains 3212 and the second pigment molecules 3211.

[0061] It should be noted that, since the second molecular chain 3212 can provide more connection sites, the embodiments of this application can connect the second molecular chain 3212 to the second pigment molecule 3211, thereby enabling the formation of more second charged groups 3213 on the second pigment particle 321, increasing the charge of the second pigment particle 321. As a result, when the voltage is applied to the second electrode 22 during the process, it is beneficial for the second pigment particle 321 to be deposited on the second electrode 22 to form the second color resist 32.

[0062] In some embodiments, the second molecular chain 3212 includes at least one of a silane and a resin structure.

[0063] In some embodiments, the charge of the first charged group 3113 is different from that of the second charged group 3213; then, voltages with opposite charges are applied to the first electrode 21 and the second electrode 22 respectively. For example, by connecting the first electrode 21 and the second electrode 22 to the positive and negative terminals of the same power supply, the first pigment particles 311 can be deposited on the first electrode 21 and the second pigment particles 321 can be deposited on the second electrode 22 at the same time.

[0064] It is understood that the first color resist 31 and the second color resist 32 in the embodiments of this application can be formed by electrophoretic deposition.

[0065] In some embodiments, the first charged group 3113 has the same electrical properties as the second charged group 3213; thus, the first electrode 21 and the second electrode 22 can be applied with the same voltage in sequence, so that the first pigment particles 311 are deposited on the first electrode 21 and the second pigment particles 321 are deposited on the second electrode 22.

[0066] In some other embodiments of this application, when the charge of the first charged group 3113 is the same as that of the second charged group 3213, the charge of the first pigment particle 311 and the second pigment particle 321 can also be controlled, and the first pigment particle 311 can be deposited on the first electrode 21 and the second pigment particle 321 can be deposited on the second electrode 22 by adjusting the potential on the first electrode 21 and the second pigment particle 321 can be deposited on the second electrode 22.

[0067] For example, the first pigment particle 311 has a first potential, and the second pigment particle 321 has a second potential. The ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2, for example, it can be 2, 3, 4, 5 or 6, etc.

[0068] In some embodiments, the electrode layer 20 further includes a plurality of third electrodes 23 disposed at intervals from the first electrode 21 and the second electrode 22. Correspondingly, the color resist layer 30 includes a plurality of third color resists 33, and the third color resists 33 are disposed on the side of the third electrode 23 away from the first substrate 10.

[0069] It is understandable that the color of the third color resist 33 is different from the color of the first color resist 31 and the color of the second color resist 32. For example, the color of the first color resist 31 can be red, the color of the second color resist 32 can be blue, and the color resist 33 can be green, so that the color resist layer 30 can achieve full-color display function.

[0070] In some embodiments, the third color resist 33 includes a plurality of third pigment particles 331, and the plurality of third pigment particles 331 can be aggregated together by van der Waals attraction to form the third color resist 33; wherein, the third pigment particle 331 includes a third pigment molecule 3311, a third molecular chain 3312 and a third charged group 3313, the third molecular chain 3312 is attached to the third pigment molecule 3311, and the third charged group 3313 is attached to at least the third molecular chain 3312; further, the third charged group 3313 can be attached to the third molecular chain 3312 and the third pigment molecule 3311.

[0071] It should be noted that since the third molecular chain 3312 can provide more connection sites, the embodiments of this application can connect the third molecular chain 3312 to the third pigment molecule 3311, thereby enabling the formation of more third charged groups 3313 on the third pigment particle 331, increasing the charge of the third pigment particle 331. As a result, when the voltage is applied to the third electrode 23 during the process, it is beneficial for the third pigment particle 331 to be deposited on the third electrode 23 to form the third color resist 33.

[0072] It is understood that the third color resist 33 in the embodiments of this application can be formed by electrophoretic deposition.

[0073] In some embodiments, the third molecular chain 3312 includes at least one of a silane and a resin structure.

[0074] In some embodiments, the third charged group 3313 has the same electrical properties as the first charged group 3113, or the third charged group 3313 has the same electrical properties as the second charged group 3213.

[0075] In some embodiments, the first charged group 3113 is selected from -COO. - Or -NH3 + The second charged group 3213 is selected from -COO. - Or -NH3 + The third charged group 3313 is selected from -COO. - Or -NH3 + .

[0076] Among them, -COO --NH3 is a charged group formed by the dissociation of a carboxyl group. + It is a charged group formed by the dissociation of an amino group.

[0077] In some embodiments, for the first molecular chain 3112, the second molecular chain 3212, and the third molecular chain 3312, the silane may include a silane formed from at least one of methacryloyloxypropyltrimethoxysilane (e.g., KH-570), methacryloyloxypropyltriethoxysilane, methacryloyloxypropylmethyldimethoxysilane (e.g., KH-571), and methacryloyloxypropylmethyldiethoxysilane; the resin structure may include a resin group formed from at least one of acrylic polymers, epoxy polymers, polypropylene, polyethylene, and polystyrene. For example, acrylic polymers may include methacrylate, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, and dimethylaminoethyl methacrylate; epoxy polymers may include phenolic resins, epoxy resins, and modified epoxy resins.

[0078] In some embodiments, when the color of the first color resist 31 can be red, the color of the second color resist 32 can be blue, and the color of the third color resist 33 can be green, the first pigment molecule 3111 can include one or more of 9, 19, 38, 43, 97, 122, 123, 144, 149, 166, 168, 177, 179, 180, 192, 208, 209, 215, 216, 217, 220, 223, 224, 226, 227, 228, 240, 252, 254, 255, 264, 270, and 291. Preferably, the first pigment molecule 3111 can include one or more of 177, 254, and 291; the second pigment... Molecule 3211 may include one or more of 15, 15:6, 16, 22, 23, 29, 60, and 64; third pigment molecule 3311 may include one or more of 7, 36, 56, 58, 59, and zinc phthalocyanine, preferably, third pigment molecule 3311 may include one or more of 7, 36, and 56; furthermore, when the pigment of the third color resist 33 is yellow, then third pigment molecule 3311 may include one or more of 20, 23, 24, 86, 81, 83, 93, 108, 109, 110, 117, 125, 137, 138, 139, 147, 148, 150, 153, 154, 166, 168, 185, and 231.

[0079] Furthermore, referring to Figures 1, 3, and 4, in some embodiments, multiple first electrodes 21 can be connected to each other, multiple second electrodes 22 can be connected to each other, and multiple third electrodes 23 can be connected to each other, which facilitates the application of voltage to the first electrodes 21, second electrodes 22, and third electrodes 23.

[0080] In some embodiments, the color filter substrate may further include a first trace 24, a second trace 25 and a third trace 26 disposed on the first substrate 10, wherein a plurality of first electrodes 21 are connected through the first trace 24, a plurality of second electrodes 22 are connected through the second trace 25 and a plurality of third electrodes 23 are connected through the third trace 26.

[0081] In some embodiments, multiple first electrodes 21 can be arranged in multiple rows and columns, multiple second electrodes 22 can be arranged in multiple rows and columns, and multiple third electrodes 23 can be arranged in multiple rows and columns; and as shown in FIG3, from top to bottom, they can be arranged as: one row of first electrodes 21, one row of third electrodes 23, one row of second electrodes 22, one row of first electrodes 21, one row of third electrodes 23, and one row of second electrodes 22, and one row of first electrodes 21, one row of third electrodes 23, and one row of second electrodes 22 constitute a group of electrodes, and multiple groups of electrodes can be arranged along the column direction; wherein, two first electrodes 21 along the row direction can be connected by a first trace 24. One first electrode 21 in one row between two adjacent rows of first electrodes 21 can be connected to another first electrode 21 in another row through a first trace 24. Similarly, two second electrodes 22 along the row direction can be connected through a second trace 25. Two third electrodes 23 along the row direction can be connected through a third trace 26.

[0082] In some embodiments, the multiple first color resistors 31, multiple second color resistors 32, and multiple third color resistors 33 located on the multiple first electrodes 21, multiple second electrodes 22, and multiple third electrodes 23 are also arranged in multiple rows and columns; and as shown in FIG4, they can be arranged sequentially from top to bottom as: one row of first color resistors 31, one row of third color resistors 33, one row of second color resistors 32, one row of first color resistors 31, one row of third color resistors 33, and one row of second color resistors 32, and one row of first color resistors 31, one row of third color resistors 33, and one row of second color resistors 32 constitutes a group of color resistors, and multiple groups of color resistors can be arranged along the column direction.

[0083] In some embodiments, the color filter substrate further includes a black matrix layer 40, which is disposed on one side of the color resist layer 30. The orthographic projection of the black matrix layer 40 on the first substrate 10 is located between the orthographic projections of adjacent first color resists 31 and second color resists 32 on the first substrate 10, between the orthographic projections of adjacent first color resists 31 and third color resists 33 on the first substrate 10, and between the orthographic projections of adjacent second color resists 32 and third color resists 33 on the first substrate 10. In addition, the orthographic projection of the black matrix layer 40 on the first substrate 10 may also be located between the orthographic projections of adjacent first color resists 31 on the first substrate 10, between the orthographic projections of adjacent second color resists 32 on the first substrate 10, and between the orthographic projections of adjacent third color resists 33 on the first substrate 10.

[0084] Referring to Figure 1, in some embodiments, a black matrix layer 40 is disposed on a first substrate 10 and is located between adjacent first electrodes 21 and second electrodes 22, between adjacent first electrodes 21 and third electrodes 23, and between adjacent second electrodes 22 and third electrodes 23; in addition, the black matrix layer 40 may also be located between adjacent first electrodes 21, between adjacent second electrodes 22, and between adjacent third electrodes 23.

[0085] The black matrix layer 40 is located between adjacent first color resist 31 and second color resist 32, between adjacent first color resist 31 and third color resist 33, and between adjacent second color resist 32 and third color resist 33. In addition, the black matrix layer 40 may also be located between adjacent first color resist 31, between adjacent second color resist 32, and between adjacent third color resist 33.

[0086] As mentioned above, the black matrix layer 40 in this embodiment can be patterned using photolithography. Compared to depositing the black matrix layer using electrophoresis, which requires forming electrodes corresponding to the black matrix layer and spacing these electrodes from the color resist electrodes, resulting in gaps between the black matrix layer and the color resist, the black matrix layer 40 formed using photolithography in this embodiment can contact the electrodes in the electrode layer 20, thus preventing gaps between the black matrix layer 40 and the color resist in the color resist layer 30.

[0087] Referring to Figure 5, in some embodiments, the color filter substrate does not have a black matrix layer. Since this embodiment uses electrophoresis to deposit the first pigment particles 311, the second pigment particles 321, and the third pigment particles 331 onto the first electrode 21, the second electrode 22, and the third electrode 23 respectively, forming the first color resist 31, the second color resist 32, and the third color resist 33 respectively, and the first pigment particles 311, the second pigment particles 321, and the third pigment particles 331 can be accurately and quickly deposited onto the corresponding electrodes according to their electrical properties, for example, the precision of the electrophoretically deposited color resist layer 30 can reach 2µm. Compared with the prior art, this avoids interference and crosstalk between adjacent color resist materials of different colors during deposition and patterning. Therefore, this embodiment does not need to have a black matrix layer, further reducing the material and resource consumption of the black matrix layer.

[0088] Continuing from the above, the embodiments of this application, by respectively setting the first charged group 3113 and the second charged group 3213 on the first pigment particle 311 and the second pigment particle 321, can then apply a voltage to the first electrode 21 and the second electrode 22, so that the first pigment particle 311 and the second pigment particle 321 are deposited on the first electrode 21 and the second electrode 22 respectively, to form the first color resist 31 and the second color resist 32 respectively. Therefore, compared with the prior art, the utilization rate of the color resist material is improved, the loss of the color resist material is reduced, the energy consumption of the color resist layer 30 in the process is reduced, and the energy consumption of the color filter substrate in the process is reduced.

[0089] In addition, this application embodiment also provides a method for manufacturing a color filter substrate, the method comprising:

[0090] An electrode layer is formed on a first substrate, the electrode layer including a plurality of first electrodes and a plurality of second electrodes disposed at intervals;

[0091] A first color resist material and a second color resist material are formed on the side of the electrode layer away from the first substrate, and a voltage is applied to the first electrode and the second electrode to form a color resist layer on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are formed on the side of the first electrode away from the first substrate, and the second color resists are formed on the side of the second electrode away from the first substrate.

[0092] The first color resist material includes first pigment particles, and the second color resist material includes second pigment particles. Both the first pigment particles and the second pigment particles are charged.

[0093] In one embodiment of this application, the step of forming a color resist layer on the side of the electrode layer away from the first substrate by electrophoretic deposition includes:

[0094] A first color resist material and a second color resist material are formed on the side of the electrode layer away from the first substrate, and a voltage is applied to the first electrode and the second electrode, wherein the polarity of the voltage applied to the first electrode and the voltage applied to the second electrode are opposite.

[0095] Alternatively, the voltage applied to the first electrode has the same polarity as the voltage applied to the second electrode, wherein the first pigment particle has a first potential, the second pigment particle has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

[0096] Specifically, referring to Figures 1, 2, 3, 6, and 7 to 10, the fabrication method of this color filter substrate includes the following steps:

[0097] S10. An electrode layer 20 is formed on the first substrate 10. The electrode layer 20 includes a plurality of first electrodes 21 and a plurality of second electrodes 22 disposed at intervals.

[0098] S20. A color resist layer 30 is formed on the side of the electrode layer 20 away from the first substrate 10 by electrophoretic deposition. The color resist layer 30 includes a plurality of first color resists 31 and a plurality of second color resists 32. The first color resists 31 are formed on the side of the first electrode 21 away from the first substrate 10, and the second color resists 32 are formed on the side of the second electrode 22 away from the first substrate 10.

[0099] The first color resist 31 includes a first pigment particle 311, and the second color resist 31 includes a second pigment particle 321. Both the first pigment particle 311 and the second pigment particle 321 are charged.

[0100] It should be noted that the first pigment particle 311 is connected to a first charged group 3113, so that the first pigment particle 311 is charged, and the second pigment particle 321 is connected to a second charged group 3213, so that the second pigment particle 321 is charged.

[0101] Specifically, in step S10, a first substrate 10 is provided; in some embodiments, the first substrate 10 may be a glass substrate.

[0102] A first electrode material layer is formed on the first substrate 10, and the first electrode material is patterned to form the counter electrode layer 20, for example, by performing a mask lithography process for patterning.

[0103] The electrode layer 20 includes a plurality of first electrodes 21, a plurality of second electrodes 22, and a plurality of third electrodes 23 arranged at intervals.

[0104] In some embodiments, the color filter substrate further includes a first trace 24, a second trace 25, and a third trace 26 that can be formed on the first substrate 10, and a plurality of first electrodes 31 are connected through the first trace 24, a plurality of second electrodes 22 are connected through the second trace 25, and a plurality of third electrodes 23 are connected through the third trace 26.

[0105] In step S20, a first color resist material, a second color resist material, and a third color resist material are provided.

[0106] In the preparation process of the first color resist material, a first pigment molecule 3111 is first provided, and polar groups are modified on the first pigment molecule 3111. For example, polar groups may include hydroxyl, carboxyl, amino, vinyl, acetylene, halogen and other reactive groups, and preferably hydroxyl, carboxyl, amino and other groups that are easy to dissociate and become charged, so as to increase the charge of the first pigment particles 311 formed subsequently.

[0107] Next, a first molecular chain 3112 is formed on the first pigment molecule 3111, and the first molecular chain 3112 can be formed by a silane coupling agent with amino or carboxyl groups or a resin polymer with amino or carboxyl groups.

[0108] It should be noted that the first molecular chain 3112 may have amino or carboxyl groups, and amino and carboxyl groups can be charged during the dissociation process to form the first charged group 3113, thereby making the first pigment particles 311 charged.

[0109] In some embodiments, when the first color resist 31 is red, the first pigment molecule 3111 may include one or more of 9, 19, 38, 43, 97, 122, 123, 144, 149, 166, 168, 177, 179, 180, 192, 208, 209, 215, 216, 217, 220, 223, 224, 226, 227, 228, 240, 252, 254, 255, 264, 270, and 291. Preferably, the first pigment molecule 3111 may include one or more of 177, 254, and 291.

[0110] In some embodiments, the silane coupling agent may include one or more of methacryloyloxypropyltrimethoxysilane (e.g., KH-570), methacryloyloxypropyltriethoxysilane, methacryloyloxypropylmethyldimethoxysilane (e.g., KH-571), and methacryloyloxypropylmethyldiethoxysilane; the resin polymer may include one or more of acrylic polymers, epoxy polymers, polypropylene, polyethylene, and polystyrene. For example, acrylic polymers may include one or more of methacrylates, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyacrylate, phenyl acrylate, and cyanoacrylate; and epoxy polymers may include one or more of phenolic resins, epoxy resins, and modified epoxy resins.

[0111] The first pigment particles 311, monomers, adhesive resins, initiators, and solvents are mixed to form a first photoresist material, wherein the amino and / or carboxyl groups in the first pigment particles 311 dissociate to form first charged groups 3113.

[0112] In some embodiments, the monomer may include acrylates of polyhydroxy alcohols.

[0113] In some embodiments, adhesive resins can be classified into two categories: light-curing adhesive resins and thermosetting adhesive resins. Thermosetting adhesive resins include phenolic resins, epoxy resins, and modified epoxy resins. Light-curing adhesive resins include copolymers of unsaturated carboxylic acids and compounds containing unsaturated olefin bonds. For example, the unsaturated carboxylic acids are selected from one or more combinations of acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, and itaconic acid; the compounds containing unsaturated olefin bonds are selected from one or more combinations of methyl methacrylate, ethyl methacrylate, butyl methacrylate, tert-butyl methacrylate, styrene, α-methylstyrene, and acrylonitrile.

[0114] In some embodiments, the initiator may include one or a combination of multiple of 2,2-azobisisobutyronitrile, benzoin, benzophenone, anthraquinone, acetophenone, and diimidazole.

[0115] In some embodiments, the solvent may include alcohols, ethers, and ketones with medium to high boiling points and low evaporation rates, such as diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dibutyl ether, ethylene glycol ethyl ether acetate, diethylene glycol ethyl ether acetate, diethylene glycol butyl ether acetate, propylene glycol monomethyl ether ester (PGMEA), cyclohexanone, isophorone, etc.

[0116] Similarly, in the preparation process of the second color resist material, a second pigment molecule 3211 is first provided, and polar groups are modified on the second pigment molecule 3211. For example, polar groups may include hydroxyl, carboxyl, amino, vinyl, acetylene, halogen and other reactive groups, and preferably hydroxyl, carboxyl, amino and other groups that are easy to dissociate and become charged, so as to increase the charge of the second pigment particles 321 formed subsequently.

[0117] Next, a second molecular chain 3212 is formed on the second pigment molecule 3211, and the second molecular chain 3212 can be formed by a silane coupling agent with amino or carboxyl groups or a resin polymer with amino or carboxyl groups.

[0118] It should be noted that the second molecular chain 3212 may have amino or carboxyl groups, and amino and carboxyl groups can become charged during the dissociation process to form a second charged group 3213, thereby making the second pigment particles 321 charged.

[0119] In some embodiments, when the second color resist 32 is blue, the second pigment molecule 3211 may include one or more of 15, 15:6, 16, 22, 23, 29, 60, and 64.

[0120] In some embodiments, the silane coupling agent may include one or more of methacryloyloxypropyltrimethoxysilane (e.g., KH-570), methacryloyloxypropyltriethoxysilane, methacryloyloxypropylmethyldimethoxysilane (e.g., KH-571), and methacryloyloxypropylmethyldiethoxysilane; the resin polymer may include one or more of acrylic polymers, epoxy polymers, polypropylene, polyethylene, and polystyrene. For example, acrylic polymers may include one or more of methacrylates, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyacrylate, phenyl acrylate, and cyanoacrylate; and epoxy polymers may include one or more of phenolic resins, epoxy resins, and modified epoxy resins.

[0121] The above-mentioned second pigment particles 321, monomer, adhesive resin, initiator and solvent are mixed to form a second photoresist material, wherein the amino and / or carboxyl groups in the second pigment particles 321 dissociate to form a second charged group 3213.

[0122] In the preparation process of the third color resist material, a third pigment molecule 3311 is first provided, and polar groups are modified on the third pigment molecule 3311. For example, polar groups may include hydroxyl, carboxyl, amino, vinyl, acetylene, halogen and other reactive groups, and preferably hydroxyl, carboxyl, amino and other groups that are easy to dissociate and become charged, so as to increase the charge of the third pigment particles 331 formed subsequently.

[0123] Next, a third molecular chain 3312 is formed on the third pigment molecule 3311, and the third molecular chain 3312 can be formed by a silane coupling agent with amino or carboxyl groups or a resin polymer with amino or carboxyl groups.

[0124] It should be noted that the third molecular chain 3312 may have amino or carboxyl groups, and amino and carboxyl groups can become charged during dissociation to form a third charged group 3313, thereby making the third pigment particles 331 charged.

[0125] In some embodiments, when the third color resist 33 is green, the third pigment molecule 3311 may include one or more of 7, 36, 56, 58, 59, and zinc phthalocyanine. Preferably, the third pigment molecule 3311 may include one or more of 7, 36, and 56.

[0126] In some embodiments, the silane coupling agent may include one or more of methacryloyloxypropyltrimethoxysilane (e.g., KH-570), methacryloyloxypropyltriethoxysilane, methacryloyloxypropylmethyldimethoxysilane (e.g., KH-571), and methacryloyloxypropylmethyldiethoxysilane; the resin polymer may include acrylic polymers, epoxy polymers, polypropylene, polyethylene, and polystyrene. For example, acrylic polymers may include one or more of methacrylates, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyacrylate, phenyl acrylate, and cyanoacrylate; and epoxy polymers may include one or more of phenolic resins, epoxy resins, and modified epoxy resins.

[0127] The above-mentioned third pigment particles 331, monomers, adhesive resins, initiators and solvents are mixed to form a third photoresist material, wherein the amino and / or carboxyl groups in the third pigment particles 331 dissociate to form a third charged group 3313.

[0128] For example, the formation of the third pigment particle 331 can be carried out according to the following synthetic route:

[0129] The process from compound M1 to compound M2 involves modifying the third pigment molecule 3311 with polar groups.

[0130] The process from compound M2 to compound M3 involves attaching a silane coupling agent with carboxyl and / or amino groups to the third pigment molecule 3311, and the amino and carboxyl groups can also serve as sites for attachment to subsequent polymers.

[0131] The process from compound M3 to compound M4 involves attaching a resin structure with carboxyl and / or amino groups to a silane group. The resin structure itself can improve the dispersibility of the third pigment molecule 3311 and prevent the aggregation of the third pigment molecule 3311. In addition, the charge of the third pigment molecule 3311 and its surface structure after dissociation can be adjusted by adjusting the resin structure and the number of amino and / or carboxyl groups on the silane group.

[0132] Similarly, in the first and second color resist materials, the resin structure itself can improve the dispersibility of the first pigment molecule 3111 and the second pigment molecule 3211, and prevent the aggregation of the first pigment molecule 3111 and the second pigment molecule 3211.

[0133] In some embodiments of this application, referring to Figures 1, 2, 3, 6 and 7 to 10, the first pigment particle 311 and the second pigment particle 321 are negatively charged, while the third pigment particle 331 is positively charged.

[0134] Next, the first color resist material and the second color resist material are mixed and coated on the side of the electrode layer 20 away from the first substrate 10.

[0135] Then, a voltage is applied to the first electrode 21 and the third electrode 23. Since the first pigment particle 311 is negatively charged and the third pigment particle 331 is positively charged, the first electrode 21 is connected to the positive terminal of the first power supply 61 and the third electrode 23 is connected to the negative terminal of the first power supply 61, as shown in Figure 7.

[0136] In some embodiments, the voltage range of the first power supply 61 can be 0.5V / um-5V / um.

[0137] Next, multiple first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite charges, and then the multiple first pigment particles 311 are gathered on the first electrode 21 by van der Waals forces; multiple third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite charges, and then the multiple third pigment particles 331 are gathered on the third electrode 23 by van der Waals forces, as shown in Figure 8.

[0138] Then, the first substrate 10 is subjected to drying, exposure, development and baking operations to form a first color resist 31 located on the first electrode 21 and a second color resist 32 located on the second electrode 22, as shown in FIG9.

[0139] Next, a second photoresist material is coated on the side of the electrode layer 20 away from the first substrate 10.

[0140] Then, a voltage is applied to the second electrode 22. Since the second pigment particles 321 are positively charged, the second electrode 22 is connected to the negative terminal of the second power supply 62, and the voltage applied to the first electrode 21 is opposite in polarity to the voltage applied to the second electrode 22, as shown in Figure 10.

[0141] In some embodiments, the voltage range of the second power supply 62 can be 0.5V / um-5V / um.

[0142] Next, multiple second pigment particles 321 are deposited on the second electrode 22 under the attraction of opposite charges, and then the multiple second pigment particles 321 are gathered on the second electrode 22 by van der Waals forces.

[0143] Then, the first substrate 10 is subjected to drying, exposure, development and baking operations to form the second color resist 32 located on the second electrode 22, as shown in FIG1.

[0144] In some other embodiments of this application, referring to Figures 1, 2, 3, 6 and 11 to 13, when forming the first photoresist material, the second photoresist material and the third photoresist material, the first pigment particle 311 and the second pigment particle 321 are negatively charged, while the third pigment particle 331 is positively charged; it should be noted that the charge of the first pigment particle 311 is greater than the charge of the second pigment particle 321.

[0145] In some embodiments, the zeta potential of the first pigment particle 311 is greater than or equal to -30mV, the zeta potential of the second pigment particle 321 ranges from -5mV to 15mV, the zeta potential of the third pigment particle 331 is greater than or equal to 30mV, the first pigment particle 311 has a first potential, the second pigment particle 321 has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

[0146] The first photoresist material, the second photoresist material, and the third photoresist material are mixed and coated on the side of the electrode layer 20 away from the first substrate 10.

[0147] A first voltage is applied to the first electrode 21 and the third electrode 23. Since the first pigment particle 311 is negatively charged and the third pigment particle 331 is positively charged, the first electrode 21 is connected to the positive terminal of the third power supply 63 and the third electrode 23 is connected to the negative terminal of the third power supply 63, as shown in Figure 11.

[0148] It should be noted that the first voltage is relatively small. Since the potential of the second pigment particle 321 is low, while the potentials of the first pigment particle 311 and the third pigment particle 331 are high, the relatively small first voltage can drive the first pigment particle 311 and the third pigment particle 331, but cannot drive the second pigment particle 321.

[0149] Next, multiple first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite charges, and then the multiple first pigment particles 311 are gathered on the first electrode 21 by van der Waals forces; multiple third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite charges, and then the multiple third pigment particles 331 are gathered on the third electrode 23 by van der Waals forces, as shown in Figure 12.

[0150] Then, a second voltage is applied to the second electrode 22, as shown in Figure 13. Since the second pigment particles 321 are negatively charged, the second electrode 22 is connected to the positive terminal of the fourth power supply 64, while the negative terminal of the fourth power supply 64 can be grounded, and the voltage applied to the first electrode 21 has the same polarity as the voltage applied to the second electrode 22.

[0151] The second voltage is larger and greater than the first voltage, which in turn can drive the second pigment particles 321 with a smaller potential.

[0152] Multiple first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite charges, and then the multiple first pigment particles 311 are gathered on the first electrode 21 by van der Waals forces; multiple third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite charges, and then the multiple third pigment particles 331 are gathered on the third electrode 23 by van der Waals forces.

[0153] Then, the first substrate 10 is subjected to drying, exposure, development, and baking operations to form a first color resist 31 located on the first electrode 21, a second color resist 32 located on the second electrode 22, and a third color resist 33 located on the third electrode 23, as shown in FIG1.

[0154] It is understood that, compared with the embodiments shown in Figures 7 to 10, the embodiments shown in Figures 11 to 13 differentiate the charge of the first pigment particle 311 and the charge of the second pigment particle 321, thereby enabling the preparation of the first color resist 31, the second color resist 32 and the third color resist 33 in one process, further reducing the resource consumption in the color resist layer 30 process.

[0155] In summary, the embodiments of this application, by respectively setting the first charged group 3113 and the second charged group 3213 on the first pigment particle 311 and the second pigment particle 321, can then apply a voltage to the first electrode 21 and the second electrode 22, so that the first pigment particle 311 and the second pigment particle 321 are deposited on the first electrode 21 and the second electrode 22 respectively, to form the first color resist 31 and the second color resist 32 respectively. Compared with the prior art, this improves the utilization rate of the color resist material, reduces the loss of the color resist material, reduces the energy consumption of the color resist layer 30 in the process, and thus reduces the energy consumption of the color filter substrate in the process.

[0156] In addition, this application embodiment also provides a display panel. Please refer to Figures 14 and 15. The display panel includes an array substrate 50 and a color filter substrate as described in the above embodiments, and the array substrate 50 is disposed opposite to the color filter substrate described in the above embodiments.

[0157] In some embodiments, the array substrate 50 includes a second substrate 51 and a pixel electrode 53 disposed on the side of the second substrate 51 near the color filter substrate. The display panel also includes a liquid crystal layer 80 disposed between the array substrate 50 and the color filter substrate. In this embodiment, the electrode layer 20 in the color filter substrate can be reused as a common electrode, and the electrode layer 20 is used to form an electric field with the pixel electrode 53 to drive the liquid crystal in the liquid crystal layer 80 to deflect.

[0158] In some embodiments, the array substrate 50 further includes a thin-film transistor layer 52 disposed between the second substrate 51 and the pixel electrode 53.

[0159] It should be noted that the electrode layer 20 may not be reused as a common electrode, and a common electrode may be formed on the side of the color resist layer 30 away from the first substrate 10.

[0160] Referring to Figure 15, in some embodiments, the display panel further includes a second substrate 51 disposed on the side of the color resist layer 30 away from the first substrate 10 and a thin film transistor layer 52 disposed on the side of the second substrate 51 close to the color resist layer 30; while the black matrix layer 40 can be disposed on the side of the thin film transistor layer 52 away from the second substrate 51, so that the black matrix layer 40 does not need to be disposed on the color filter substrate.

[0161] In addition, this application embodiment also provides a display device, the display device including a backlight module and the display panel described in the above embodiment, and the display panel is disposed on the light-emitting side of the backlight module.

[0162] It is understood that since the display device includes the display panel described in the above embodiments, the display device has the same beneficial effects as the display panel described in the above embodiments, and will not be repeated here.

[0163] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0164] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0165] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0166] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A color filter substrate, comprising: First substrate; An electrode layer is disposed on the first substrate, and the electrode layer includes a plurality of first electrodes and a plurality of second electrodes disposed at intervals. A color resist layer is disposed on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are disposed on the side of the first electrode away from the first substrate, and the second color resists are disposed on the side of the second electrode away from the first substrate. The first color resist comprises a plurality of first pigment particles, and the second color resist comprises a plurality of second pigment particles, wherein both the first pigment particles and the second pigment particles are charged.

2. The color filter substrate according to claim 1, wherein, The first pigment particle is attached to a first charged group, and the second pigment particle is attached to a second charged group.

3. The color filter substrate according to claim 2, wherein, The charge of the first charged group is different from that of the second charged group.

4. The color filter substrate according to claim 2, wherein, The first charged group has the same electrical charge as the second charged group.

5. The color filter substrate according to claim 4, wherein, The first pigment particle has a first potential, the second pigment particle has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

6. The color filter substrate according to any one of claims 2 to 5, wherein, The electrode layer further includes a plurality of third electrodes disposed at intervals from the first electrode and the second electrode; The color resist layer also includes a plurality of third color resists, which are disposed on the side of the third electrode away from the first substrate; The third color resist comprises a plurality of third pigment particles, and the third pigment particles are connected to a third charged group.

7. The color filter substrate according to claim 6, wherein, The third charged group has the same charge as the first charged group, or the third charged group has the same charge as the second charged group.

8. The color filter substrate according to claim 6, wherein, The first charged group, the second charged group, and the third charged group are selected from -COO. - Or -NH3 + .

9. The color filter substrate according to claim 6, wherein, The first pigment particle is attached to a first molecular chain, and the first charged group is attached to at least the first molecular chain; The second pigment particle is attached to a second molecular chain, and the second charged group is attached to at least the second molecular chain; The third pigment particle is connected to a third molecular chain, and the third charged group is connected to at least the third molecular chain.

10. The color filter substrate according to claim 9, wherein, The first molecular chain, the second molecular chain, and the third molecular chain include at least one of silane and resin structures.

11. The color filter substrate according to claim 6, wherein, The color filter substrate further includes a black matrix layer, the orthographic projection of which on the first substrate is located between the orthographic projections of adjacent first and second color resists on the first substrate, between the orthographic projections of adjacent first and third color resists on the first substrate, and between the orthographic projections of adjacent second and third color resists on the first substrate.

12. The color filter substrate according to claim 11, wherein, The black matrix layer is disposed on the first substrate and is located between adjacent first and second electrodes, between adjacent first and third electrodes, and between adjacent second and third electrodes.

13. The color filter substrate according to claim 6, wherein, The color filter substrate further includes a first trace, a second trace, and a third trace disposed on the first substrate. A plurality of first electrodes are connected through the first trace, a plurality of second electrodes are connected through the second trace, and a plurality of third electrodes are connected through the third trace.

14. The color filter substrate according to claim 1, wherein, The first and second color resists are formed by electrophoretic deposition.

15. A method for manufacturing a color filter substrate, the method comprising the following steps: An electrode layer is formed on a first substrate, the electrode layer including a plurality of first electrodes and a plurality of second electrodes spaced apart; A color resist layer is formed by electrophoretic deposition on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are formed on the side of the first electrode away from the first substrate, and the second color resists are formed on the side of the second electrode away from the first substrate. The first color resists include first pigment particles, and the second color resists include second pigment particles. Both the first pigment particles and the second pigment particles are charged.

16. The method for manufacturing a color filter substrate according to claim 15, wherein, The step of forming a color resist layer on the side of the electrode layer away from the first substrate by electrophoretic deposition includes: A first color resist material and a second color resist material are formed on the side of the electrode layer away from the first substrate, and a voltage is applied to the first electrode and the second electrode, wherein the polarity of the voltage applied to the first electrode and the voltage applied to the second electrode are opposite. Alternatively, the voltage applied to the first electrode has the same polarity as the voltage applied to the second electrode, wherein the first pigment particle has a first potential, the second pigment particle has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

17. A display panel, the display panel comprising an array substrate and a color filter substrate, wherein the array substrate and the color filter substrate are disposed opposite to each other, the color filter substrate comprising: First substrate; An electrode layer is disposed on the first substrate, and the electrode layer includes a plurality of first electrodes and a plurality of second electrodes disposed at intervals. A color resist layer is disposed on the side of the electrode layer away from the first substrate. The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are disposed on the side of the first electrode away from the first substrate, and the second color resists are disposed on the side of the second electrode away from the first substrate. The first color resist comprises a plurality of first pigment particles, and the second color resist comprises a plurality of second pigment particles, wherein both the first pigment particles and the second pigment particles are charged.

18. The display panel according to claim 17, wherein, The array substrate includes a second substrate and a pixel electrode disposed on the side of the second substrate near the color filter substrate. The display panel also includes a liquid crystal layer disposed between the array substrate and the color filter substrate, and the electrode layer is used to form an electric field with the pixel electrode to drive the liquid crystal in the liquid crystal layer to deflect.

19. The display panel according to claim 17, wherein, The first pigment particle is attached to a first charged group, and the second pigment particle is attached to a second charged group.

20. The display panel according to claim 19, wherein, The charge of the first charged group is different from that of the second charged group; Alternatively, the first charged group has the same electrical charge as the second charged group, the first pigment particle has a first potential, the second pigment particle has a second potential, and the ratio of the absolute value of the first potential to the absolute value of the second potential is greater than or equal to 2.

Images