Color film substrate, manufacturing method thereof and display panel

Abstract

The application relates to a color film substrate, a manufacturing method thereof and a display panel. The color film substrate comprises a first substrate, an electrode layer and a color resistance layer. The electrode layer is arranged on the first substrate and comprises a plurality of first electrodes and a plurality of second electrodes arranged at intervals. The color resistance layer is arranged on the side of the electrode layer away from the first substrate and comprises a plurality of first color resistances and a plurality of second color resistances. The first color resistances are arranged on the side of the first electrodes away from the first substrate, and the second color resistances are arranged on the side of the second electrodes away from the first substrate. The first color resistances comprise a plurality of first pigment particles, the second color resistances comprise a plurality of second pigment particles, and the first pigment particles and the second pigment particles are all charged. The application can improve the utilization rate of the color resistance material, reduce the loss of the color resistance material, reduce the energy consumption of the color resistance layer in the process, and further reduce the energy consumption of the color film substrate in the process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a color film substrate, a manufacturing method thereof and a display panel. BACKGROUND

[0002] Liquid crystal display (LCD) has the advantages of low radiation, small volume and low energy consumption, and is widely used in notebook computers, televisions and other electronic devices. The liquid crystal display panel usually includes an array substrate, a color filter (CF) substrate, a liquid crystal (LC) sandwiched between the array substrate and the color filter substrate, a photo spacer (PS), and a sealing frame.

[0003] The main function of the color film substrate is to enable the liquid crystal display to produce full-color images. The color film substrate usually includes RGB color resistors, and the manufacturing of RGB color resistors requires three exposure, development and baking processes, which often involves huge resource consumption. For example: (1) low material utilization rate; in the manufacturing process of any color resistor, after cleaning the substrate surface and coating the photoresist, about 1 / 3 of the color resist is left after exposure and development through mask method, and the remaining solvent is removed through post-baking, and the material utilization rate of the whole color resistor process is only 1 / 3, which is extremely low; (2) solvent cannot be recycled; the solvent used for photoresist (about 70%-80%) is mostly mixed solvent, which cannot be recycled or the recycling cost is too high, and also brings huge environmental problems to the atmosphere; (3) large energy consumption; three exposure and baking require huge power consumption. SUMMARY

[0004] The embodiments of the present application provide a color film substrate, a manufacturing method thereof and a display panel, which can reduce material loss in the color resistor layer process and reduce resource consumption in the color resistor layer process.

[0005] The embodiments of the present application provide a color film substrate, which includes:

[0006] A first substrate;

[0007] An electrode layer is arranged on the first substrate, and the electrode layer includes a plurality of first electrodes and a plurality of second electrodes arranged at intervals;

[0008] A color resistor layer is arranged on the side of the electrode layer away from the first substrate, and the color resistor layer includes a plurality of first color resistors and a plurality of second color resistors, the first color resistors are arranged on the side of the first electrodes away from the first substrate, and the second color resistors are arranged on the side of the second electrodes away from the first substrate;

[0009] The first color resist includes a plurality of first pigment particles, the second color resist includes a plurality of second pigment particles, and both the first pigment particles and the second pigment particles are charged.

[0010] In one embodiment of the present application, a first charged group is connected to the first pigment particle, and a second charged group is connected to the second pigment particle.

[0011] In one embodiment of the present application, the electrical property of the first charged group is different from the electrical property of the second charged group.

[0012] In one embodiment of the present application, the electrical property of the first charged group is the same as the electrical property of the second charged group.

[0013] In one embodiment of the present application, the first pigment particles have a first potential, the second pigment particles have a second potential, and a ratio of an absolute value of the first potential to an absolute value of the second potential is greater than or equal to 2.

[0014] In one embodiment of the present application, the electrode layer further includes a plurality of third electrodes spaced apart from the first electrode and the second electrode;

[0015] The color resist layer further includes a plurality of third color resists, and the third color resists are arranged on a side of the third electrode away from the first substrate;

[0016] The third color resist includes a plurality of third pigment particles, and the third pigment particles are connected to third charged groups.

[0017] In one embodiment of the present application, the charge property of the third charged group is the same as that of the first charged group, or the charge property of the third charged group is the same as that of the second charged group.

[0018] In one embodiment of the present application, the first charged group, the second charged group and the third charged group are selected from -COO - or -NH3 + .

[0019] In one embodiment of the present application, a first molecular chain is connected to the first pigment particle, and the first charged group is at least connected to the first molecular chain;

[0020] The second pigment particles are connected to a second molecular chain, and the second charged group is at least connected to the second molecular chain;

[0021] The third pigment particles are connected to a third molecular chain, and the third charged group is at least connected to the third molecular chain.

[0022] In one embodiment of the present application, the first molecular chain, the second molecular chain, and the third molecular chain include at least one of a silane group and a resin structure.

[0023] In one embodiment of the present application, the color filter substrate further includes a black matrix layer, and the orthographic projection of the black matrix layer on the first substrate is located between the orthographic projections of the adjacent first color resist and the second color resist on the first substrate, between the orthographic projections of the adjacent first color resist and the third color resist on the first substrate, and between the orthographic projections of the adjacent second color resist and the third color resist on the first substrate.

[0024] In one embodiment of the present 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.

[0025] In one embodiment of the present application, the color film substrate further includes a first routing, a second routing, and a third routing arranged on the first substrate, a plurality of the first electrodes are connected via the first routing, a plurality of the second electrodes are connected via the second routing, and a plurality of the third electrodes are connected via the third routing.

[0026] In one embodiment of the present application, the first color resist and the second color resist are formed by electrophoretic deposition.

[0027] In accordance with the above-mentioned purpose of the present application, an embodiment of the present application further provides a method for manufacturing a color filter substrate, the method comprising the following steps:

[0028] forming an electrode layer on the first substrate, wherein the electrode layer includes a plurality of first electrodes and a plurality of second electrodes that are spaced apart;

[0029] A color resist layer is formed on a side of the electrode layer away from the first substrate by electrophoretic deposition, wherein the color resist layer includes a plurality of first color resists and a plurality of second color resists, wherein the first color resists are formed on a side of the first electrode away from the first substrate, and the second color resists are formed on a side of the second electrode away from the first substrate, wherein the first color resists include first pigment particles, and the second color resists include second pigment particles, and both the first pigment particles and the second pigment particles are charged.

[0030] In one embodiment of the present application, the step of forming a color resist layer on a side of the electrode layer away from the first substrate by electrophoretic deposition includes:

[0031] forming a first color resist material and a second color resist material on a side of the electrode layer away from the first substrate, and applying a voltage to the first electrode and the second electrode, wherein the polarity of the voltage applied to the first electrode is opposite to that of the voltage applied to the second electrode;

[0032] Alternatively, the voltage applied to the first electrode has the same polarity as the voltage applied to the second electrode, wherein the first pigment particles have a first potential, the second pigment particles have 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.

[0033] According to the above-mentioned purpose of the present application, an embodiment of the present application further provides a display panel, which includes an array substrate and the color filter substrate, and the array substrate and the color filter substrate are arranged opposite to each other.

[0034] In one embodiment of the present application, the array substrate includes a second substrate and a pixel electrode arranged on a side of the second substrate close to the color film substrate, the display panel also includes a liquid crystal layer arranged between the array substrate and the color film 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.

[0035] The embodiments of the present application provide a color filter substrate, a method for manufacturing the same, and a display panel. By charging the first pigment particles and the second pigment particles, a voltage can be applied to the first electrode and the second electrode so that the first pigment particles and the second pigment particles are deposited on the first electrode and the second electrode, respectively, to form a first color resist and a second color resist, respectively. Compared with the prior art, the utilization rate of the color resist material is improved, the loss of the color resist material can be reduced, the energy consumption of the color resist layer in the process is reduced, and the energy consumption of the color filter substrate in the process is reduced.

[0036] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0038] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0039] Figure 1A schematic structural diagram of a color filter substrate provided in an embodiment of the present application;

[0040] Figure 2 A schematic structural diagram of the first pigment particles, the second pigment particles, or the third pigment particles provided in an embodiment of the present application;

[0041] Figure 3 A schematic structural diagram of an electrode layer provided in an embodiment of the present application;

[0042] Figure 4 A schematic structural diagram of a color resist layer provided in an embodiment of the present application;

[0043] Figure 5 Another structural schematic diagram of the color filter substrate provided in an embodiment of the present application;

[0044] Figure 6 A flow chart of a method for manufacturing a color filter substrate provided in an embodiment of the present application;

[0045] Figures 7 to 10 A schematic diagram of a manufacturing process of a color filter substrate provided in an embodiment of the present application;

[0046] Figures 11 to 13 A schematic diagram of another manufacturing process of a color filter substrate provided in an embodiment of the present application;

[0047] Figure 14 A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0048] Figure 15 Another structural schematic diagram of a display panel provided in an embodiment of the present application.

[0049] Reference numerals:

[0050] 10. a first substrate;

[0051] 20. Electrode layer; 21. First electrode; 22. Second electrode; 23. Third electrode; 24. First trace; 25. Second trace; 26. Third trace;

[0052] 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;

[0053] 40. Black matrix layer;

[0054] 50. Array substrate; 51. Second substrate; 52. Thin film transistor layer; 51. Pixel electrode;

[0055] 61. First power supply; 62. Second power supply; 63. Third power supply; 64. Fourth power supply;

[0056] 71. Mask;

[0057] 80. Liquid crystal layer. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described 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 creative work are within the scope of protection of the present application.

[0059] Please refer to Figure 1 as well as Figure 2 An embodiment of the present application provides a color filter substrate, which includes a first substrate 10 , an electrode layer 20 and a color resist layer 30 .

[0060] Among them, the electrode layer 20 is arranged on the first substrate 10, and the electrode layer 20 includes a plurality of first electrodes 21 and a plurality of second electrodes 22 arranged at intervals; the color resist layer 30 is arranged 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 resist 31 is arranged on the side of the first electrode 21 away from the first substrate 10, and the second color resist 32 is arranged on the side of the second electrode 22 away from the first substrate 10.

[0061] 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.

[0062] During the implementation and application process, the embodiment of the present application makes the first pigment particles 311 and the second pigment particles 321 charged, and then can apply voltage to the first electrode 21 and the second electrode 22 so that the first pigment particles 311 and the second pigment particles 321 are respectively deposited on the first electrode 21 and the second electrode 22, thereby forming the first color resist 31 and the second color resist 32 respectively. Compared with the prior art, the utilization rate of the color resist material is improved, the loss of the color resist material can be 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.

[0063] It should be noted that the first pigment particles 311 are connected to first charged groups 3113 so that the first pigment particles 311 are charged, and the second pigment particles 321 are connected to second charged groups 3213 so that the second pigment particles 321 are charged.

[0064] For details, please refer to Figure 1 as well as Figure 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 a side of the electrode layer 20 away from the first substrate 10 .

[0065] Among them, the first substrate 10 can be a glass substrate; the electrode layer 20 is arranged on the first substrate 10 and includes a plurality of first electrodes 21 and a plurality of second electrodes 22 arranged at intervals; the color resist layer 30 includes a plurality of first color resists 31 and a plurality of second color resists 32, and the first color resists 31 are located on the side of the first electrode 21 away from the first substrate 10, and the second color resists 32 are located on the side of the second electrode 22 away from the first substrate 10; wherein, the color of the first color resist 31 is different from the color of the second color resist 32, and thus the color resist layer 30 can realize a color display function.

[0066] 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 particles 311 include a first pigment molecule 3111, a first molecular chain 3112 and a first charged group 3113, the first molecular chain 3112 is connected to the first pigment molecule 3111, and the first charged group 3113 is at least connected to the first molecular chain 3112; further, the first charged group 3113 can be connected to the first molecular chain 3112 and the first pigment molecule 3111.

[0067] It should be noted that since the first molecular chain 3112 can provide more connection sites, the embodiment of the present application connects the first molecular chain 3112 to the first pigment molecule 3111, thereby forming a larger number of first charged groups 3113 on the first pigment particle 311, thereby increasing the charge of the first pigment particle 311, and then when the first electrode 21 is loaded with 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.

[0068] In some embodiments, the first molecular chain 3112 includes at least one of a silane group and a resin structure.

[0069] 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 a 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 connected to the second pigment molecules 3211, and the second charged groups 3213 are at least connected to the second molecular chains 3212; further, the second charged groups 3213 can be connected to the second molecular chains 3212 and the second pigment molecules 3211.

[0070] It should be noted that since the second molecular chain 3212 can provide more connection sites, the embodiment of the present application connects the second molecular chain 3212 to the second pigment molecule 3211, thereby forming a larger number of second charged groups 3213 on the second pigment particle 321, thereby increasing the charge of the second pigment particle 321, and then when the second electrode 22 is loaded with voltage during the process, it is beneficial for the second pigment particles 321 to be deposited on the second electrode 22 to form a second color resist 32.

[0071] In some embodiments, the second molecular chain 3212 includes at least one of a silane group and a resin structure.

[0072] In some embodiments, the electrical properties of the first charged group 3113 are different from the electrical properties of the second charged group 3213; thus, opposite electrical properties are loaded on 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 poles 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.

[0073] It is understandable that the first color resist 31 and the second color resist 32 in the embodiment of the present application can be formed by electrophoretic deposition.

[0074] In some embodiments, the electrical properties of the first charged group 3113 are the same as the electrical properties of the second charged group 3213; thus, the same electrical properties can be loaded on the first electrode 21 and the second electrode 22 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.

[0075] In other embodiments of the present application, when the electrical properties of the first charged group 3113 are the same as the electrical properties of the second charged group 3213, the charges of the first pigment particles 311 and the second pigment particles 321 can also be controlled, and by adjusting the potentials on the first electrode 21 and the second electrode 22, 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.

[0076] For example, the first pigment particles 311 have a first potential, the second pigment particles 321 have 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, for example, 2, 3, 4, 5 or 6.

[0077] In some embodiments, the electrode layer 20 further includes a plurality of third electrodes 23 spaced apart 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 a side of the third electrode 23 away from the first substrate 10 .

[0078] It can be understood 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 of the third color resist 33 can be green, so that the color resist layer 30 can achieve a full-color display function.

[0079] 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 a third color resist 33; wherein, the third pigment particles 331 include a third pigment molecule 3311, a third molecular chain 3312 and a third charged group 3313, the third molecular chain 3312 is connected to the third pigment molecule 3311, and the third charged group 3313 is at least connected to the third molecular chain 3312; further, the third charged group 3313 can be connected to the third molecular chain 3312 and the third pigment molecule 3311.

[0080] It should be noted that since the third molecular chain 3312 can provide more connection sites, the embodiment of the present application connects the third molecular chain 3312 to the third pigment molecule 3311, thereby forming a larger number of third charged groups 3313 on the third pigment particle 331, thereby increasing the charge of the third pigment particle 331, and then when the third electrode 23 is loaded with voltage during the process, it is beneficial for the third pigment particle 331 to be deposited on the third electrode 23 to form a third color resist 33.

[0081] It is understandable that the third color resist 33 in the embodiment of the present application can be formed by electrophoretic deposition.

[0082] In some embodiments, the third molecular chain 3312 includes at least one of a silane group and a resin structure.

[0083] In some embodiments, the electrical property of the third charged group 3313 is the same as that of the first charged group 3113 , or the electrical property of the third charged group 3313 is the same as that of the second charged group 3213 .

[0084] 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 + .

[0085] Among them, -COO - -NH3 is a charged group formed by the dissociation of the carboxyl group + It is a charged group formed by the dissociation of an amino group.

[0086] In some embodiments, for the first molecular chain 3112, the second molecular chain 3212 and the third molecular chain 3312, the silane group may include a silane group formed by at least one of methacryloxypropyltrimethoxysilane (for example, KH-570), methacryloxypropyltriethoxysilane, methacryloxypropylmethyldimethoxysilane (for example, KH-571), and methacryloxypropylmethyldiethoxysilane; the resin structure may include a resin group formed by at least one of an acrylic polymer, an epoxy polymer, polypropylene, polyethylene, and polystyrene, for example, the acrylic polymer may include methacrylate, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, and dimethylaminoethyl methacrylate, and the epoxy polymer may include phenolic resin, epoxy resin, and modified epoxy resin.

[0087] In some embodiments, when the color of the first color resist 31 is red, the color of the second color resist 32 is blue, and the color of the third color resist 33 is green, the first pigment molecules 3111 may include 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 molecules 3111 may include 177, 254, 2 91; the second pigment molecules 3211 may include 15, 15:6, 16, 22, 23, 29, 60, 64; the third pigment molecules 3311 may include 7, 36, 56, 58, 59, zinc phthalocyanine. Preferably, the third pigment molecules 3311 may include 7, 36, 56; in addition, when the pigment of the third color resist 33 is yellow, the third pigment molecules 3311 may include 20, 23, 24, 86, 81, 83, 93, 108, 109, 110, 117, 125, 137, 138, 139, 147, 148, 150, 153, 154, 166, 168, 185, 231.

[0088] Furthermore, please combine Figure 1 、 Figure 3 as well as Figure 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 is conducive to loading voltage on the first electrodes 21, the second electrodes 22 and the third electrodes 23.

[0089] In some embodiments, the color film substrate may further include a first trace 24, a second trace 25, and a third trace 26 arranged on the first substrate 10, multiple first electrodes 21 are connected through the first trace 24, multiple second electrodes 22 are connected through the second trace 25, and multiple third electrodes 23 are connected through the third trace 26.

[0090] In some embodiments, the plurality of first electrodes 21 may be arranged in multiple rows and columns, the plurality of second electrodes 22 may be arranged in multiple rows and columns, and the plurality of third electrodes 23 may be arranged in multiple rows and columns; and Figure 3As shown, from top to bottom, they can be arranged in sequence as follows: a row of first electrodes 21, a row of third electrodes 23, a row of second electrodes 22, a row of first electrodes 21, a row of third electrodes 23 and a row of second electrodes 22, and a row of first electrodes 21, a row of third electrodes 23 and a row of second electrodes 22 form 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, and a first electrode 21 in one row between two adjacent rows of first electrodes 21 can be connected to a first electrode 21 in the other row through the first trace 24. Similarly, two second electrodes 22 along the row direction can be connected by a second trace 25, and a second electrode 22 in one row between two adjacent rows of second electrodes 22 can be connected to a second electrode 22 in the other row through the second trace 25; two third electrodes 23 along the row direction can be connected by a third trace 26, and a third electrode 23 in one row between two adjacent rows of third electrodes 23 can be connected to a third electrode 23 in the other row through the third trace 26.

[0091] In some embodiments, the plurality of first color resists 31, the plurality of second color resists 32, and the plurality of third color resists 33 on the plurality of first electrodes 21, the plurality of second electrodes 22, and the plurality of third electrodes 23 are also arranged in multiple rows and columns; and Figure 4 As shown, from top to bottom, they can be arranged in sequence as: a row of first color blocks 31, a row of third color blocks 33, a row of second color blocks 32, a row of first color blocks 31, a row of third color blocks 33, and a row of second color blocks 32. A row of first color blocks 31, a row of third color blocks 33, and a row of second color blocks 32 constitute a group of color blocks, and multiple groups of color blocks can be arranged along the column direction.

[0092] 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 can 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.

[0093] Please refer to Figure 1In some embodiments, the black matrix layer 40 is disposed on the 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 can also be located between adjacent first electrodes 21, between adjacent second electrodes 22, and between adjacent third electrodes 23.

[0094] Among them, the black matrix layer 40 is also located between the adjacent first color resist 31 and the second color resist 32, between the adjacent first color resist 31 and the third color resist 33, and between the adjacent second color resist 32 and the third color resist 33; in addition, the black matrix layer 40 can also be located between the adjacent first color resist 31, between the adjacent second color resist 32, and between the adjacent third color resist 33.

[0095] As mentioned above, the black matrix layer 40 in the embodiment of the present application can be formed into a patterned structure through a photolithography process. Compared with the electrophoresis method for depositing the black matrix layer, since the electrophoresis method requires the formation of electrodes corresponding to the black matrix layer, and the electrodes corresponding to the black matrix layer need to be separated from the electrodes corresponding to the color resist, the formed black matrix layer and the color resist are also spaced apart, which will produce a gap between the black matrix layer and the color resist; while the black matrix layer 40 formed by the photolithography process in the embodiment of the present application can contact the electrodes in the electrode layer 20, and thus no gap will be generated between the black matrix layer 40 and the color resist in the color resist layer 30.

[0096] Please refer to Figure 5 In some embodiments, the color filter substrate does not have a black matrix layer. Since the embodiment of the present application uses an electrophoretic method to deposit the first pigment particles 311, the second pigment particles 321, and the third pigment particles 331 on the first electrode 21, the second electrode 22, and the third electrode 23, respectively, to form 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 on the corresponding electrodes according to electrical properties. For example, the accuracy of the electrophoretically deposited color resist layer 30 can reach 2um. Compared with the prior art, interference and crosstalk between adjacent color resist materials of different colors can be avoided during the deposition and patterning process. Therefore, the embodiment of the present application does not need to have a black matrix layer to further reduce the material consumption and resource consumption of the black matrix layer.

[0097] Continuing from the above, the embodiment of the present application arranges the first charged group 3113 and the second charged group 3213 on the first pigment particle 311 and the second pigment particle 321 respectively, and then applies 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, the utilization rate of the color resist material is improved, the loss of the color resist material can be 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.

[0098] In addition, an embodiment of the present application further provides a method for manufacturing a color filter substrate, the method comprising:

[0099] forming an electrode layer on the first substrate, the electrode layer comprising a plurality of first electrodes and a plurality of second electrodes arranged at intervals;

[0100] forming a first color resist material and a second color resist material on a side of the electrode layer away from the first substrate, and applying a voltage 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, wherein the color resist layer includes a plurality of first color resists and a plurality of second color resists, wherein the first color resist is formed on a side of the first electrode away from the first substrate, and the second color resist is formed on a side of the second electrode away from the first substrate;

[0101] The first color-resist material includes first pigment particles, the second color-resist material includes second pigment particles, and both the first pigment particles and the second pigment particles are charged.

[0102] Specifically, please combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 as well as Figures 7 to 10 The method for manufacturing the color film substrate comprises the following steps:

[0103] S10 , forming an electrode layer 20 on the first substrate 10 , wherein the electrode layer 20 includes a plurality of first electrodes 21 and a plurality of second electrodes 22 that are spaced apart.

[0104] S20. Form a color resist layer 30 on a 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 a side of the first electrode 21 away from the first substrate 10, and the second color resists 32 are formed on a side of the second electrode 22 away from the first substrate 10.

[0105] The first color resist 31 includes first pigment particles 311 , and the second color resist 31 includes second pigment particles 321 . Both the first pigment particles 311 and the second pigment particles 321 are charged.

[0106] It should be noted that the first pigment particles 311 are connected to first charged groups 3113 so that the first pigment particles 311 are charged, and the second pigment particles 321 are connected to second charged groups 3213 so that the second pigment particles 321 are charged.

[0107] Specifically, in step S10 , a first substrate 10 is provided; in some embodiments, the first substrate 10 may be a glass substrate.

[0108] 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 photolithography process.

[0109] The electrode layer 20 includes a plurality of first electrodes 21 , a plurality of second electrodes 22 and a plurality of third electrodes 23 that are spaced apart.

[0110] In some embodiments, the color film 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 multiple first electrodes 31 are connected through the first trace 24, multiple second electrodes 22 are connected through the second trace 25, and multiple third electrodes 23 are connected through the third trace 26.

[0111] In step S20 , a first color resist material, a second color resist material, and a third color resist material are provided.

[0112] During the preparation 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, the polar groups may include hydroxyl, carboxyl, amino, vinyl, acetylene, etc., halogen and other further reactive groups, and preferably hydroxyl, carboxyl, amino and other charged groups that are easy to dissociate, so as to increase the charge of the first pigment particles 311 formed subsequently.

[0113] Next, a first molecular chain 3112 is formed on the first pigment molecule 3111 , and the first molecular chain 3112 can be formed of a silane coupling agent having an amino group or a carboxyl group or a resin polymer having an amino group or a carboxyl group.

[0114] It should be noted that the first molecular chain 3112 may carry an amino group or a carboxyl group, and the amino group and the carboxyl group may be charged during the dissociation process to form a first charged group 3113 , so that the first pigment particle 311 is charged.

[0115] In some embodiments, when the first color resist 31 is red, the first pigment molecules 3111 may include 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 molecules 3111 may include 177, 254, and 291.

[0116] In some embodiments, the silane coupling agent may include methacryloxypropyltrimethoxysilane (e.g., KH-570), methacryloxypropyltriethoxysilane, methacryloxypropylmethyldimethoxysilane (e.g., KH-571), or methacryloxypropylmethyldiethoxysilane; the resin polymer may include an acrylic polymer, an epoxy polymer, polypropylene, polyethylene, or polystyrene; for example, the acrylic polymer may include methacrylate, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyl acrylate, phenyl acrylate, or cyanoacrylate; the epoxy polymer may include phenolic resin, epoxy resin, or modified epoxy resin.

[0117] The first pigment particles 311 are mixed with monomers, a binder resin, an initiator, and a solvent to form a first photoresist material, wherein the amino groups and / or carboxyl groups in the first pigment particles 311 are dissociated to form first charged groups 3113 .

[0118] In some embodiments, the monomer may include an acrylic ester of a polyhydric alcohol.

[0119] In some embodiments, the adhesive resin can be categorized into two types: photocurable adhesive resins and thermosetting adhesive resins. Thermosetting adhesive resins include phenolic resins, epoxy resins, and modified epoxy resins. The photocurable adhesive resin includes a copolymer of an unsaturated carboxylic acid and a compound containing an olefinic unsaturation bond. For example, the unsaturated carboxylic acid is selected from a combination of one or more of acrylic acid, methacrylic acid, maleic acid, maleic anhydride, fumaric acid, and itaconic acid; and the compound containing an olefinic unsaturation bond is selected from a combination of one or more of methyl (meth)acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, tert-butyl (meth)acrylate, styrene, α-methylstyrene, and acrylonitrile.

[0120] In some embodiments, the initiator may include one or a combination of 2,2-azobisisobutyronitrile, benzoins, benzophenones, anthraquinones, acetophenones, and bisimidazoles.

[0121] In some embodiments, the solvent can include alcohol, ether and ketone solvents with medium-high boiling point and low evaporation rate, such as diethylene glycol dimethyl ether, diethylene glycol diethyl ether, ethylene 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.

[0122] Similarly, in the preparation process of the second color resist material, first, the second pigment molecule 3211 is provided, and a polar group is modified on the second pigment molecule 3211. The polar group can include a hydroxyl group, a carboxyl group, an amino group, a vinyl group, an acetylene group, and other further reaction groups, and is preferably a hydroxyl group, a carboxyl group, an amino group, and other easily dissociated charged groups, so as to improve the charge of the second pigment particle 321 formed subsequently.

[0123] Then, 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 an amino group and a carboxyl group or a resin polymer with an amino group and a carboxyl group.

[0124] It should be noted that the second molecular chain 3212 can have an amino group or a carboxyl group, and the amino group and the carboxyl group can be charged in the dissociation process to form a second charged group 3213, so that the second pigment particle 321 is charged.

[0125] In some embodiments, when the second color resist 32 is blue, the second pigment molecule 3211 can include 15, 15:6, 16, 22, 23, 29, 60, 64.

[0126] In some embodiments, the silane coupling agent can include methacryloyloxypropyl trimethoxysilane (such as KH-570), methacryloyloxypropyl triethoxysilane, methacryloyloxypropyl methyldimethoxysilane (such as KH-571), methacryloyloxypropyl methyldiethoxysilane; the resin polymer can include an acrylic polymer, an epoxy polymer, polypropylene, polyethylene, polystyrene, for example, the acrylic polymer can include methacrylate, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, stearyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyl acrylate, phenyl acrylate, cyano acrylate, the epoxy polymer can include phenolic resin, epoxy resin, modified epoxy resin.

[0127] The above-mentioned second pigment particle 321 and the monomer, the adhesive resin, the initiator and the solvent are mixed to form a second photoresist material, wherein the amino group and / or the carboxyl group in the second pigment particle 321 dissociates to form a second charged group 3213.

[0128] During the preparation 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, the polar groups may include hydroxyl, carboxyl, amino, vinyl, acetylene, etc., halogen and other further reactive groups, and preferably hydroxyl, carboxyl, amino and other charged groups that are easy to dissociate, so as to increase the charge of the subsequently formed third pigment particles 331.

[0129] Next, a third molecular chain 3312 is formed on the third pigment molecule 3311 , and the third molecular chain 3312 can be formed of a silane coupling agent with an amino group or a carboxyl group or a resin polymer with an amino group or a carboxyl group.

[0130] It should be noted that the third molecular chain 3312 may carry an amino group or a carboxyl group, and the amino group and the carboxyl group may be charged during the dissociation process to form a third charged group 3313, so that the third pigment particle 331 is charged.

[0131] In some embodiments, when the third color resist 33 is green, the third pigment molecules 3311 may include 7, 36, 56, 58, 59, and zinc phthalocyanine. Preferably, the third pigment molecules 3311 may include 7, 36, and 56.

[0132] In some embodiments, the silane coupling agent may include methacryloxypropyltrimethoxysilane (e.g., KH-570), methacryloxypropyltriethoxysilane, methacryloxypropylmethyldimethoxysilane (e.g., KH-571), or methacryloxypropylmethyldiethoxysilane; the resin polymer may include an acrylic polymer, an epoxy polymer, polypropylene, polyethylene, or polystyrene; for example, the acrylic polymer may include methacrylate, styrene, lauryl methacrylate, n-butyl methacrylate, butyl acrylate, divinylbenzene, octadecyl methacrylate, isooctyl acrylate, dimethylaminoethyl methacrylate, carboxyl acrylate, phenyl acrylate, or cyanoacrylate; the epoxy polymer may include phenolic resin, epoxy resin, or modified epoxy resin.

[0133] The third pigment particles 331 are mixed with monomers, a binder resin, an initiator, and a solvent to form a third photoresist material, wherein the amino groups and / or carboxyl groups in the third pigment particles 331 are dissociated to form third charged groups 3313 .

[0134] For example, during the formation of the third pigment particles 331, the following synthesis route may be used:

[0135]

[0136] The process from compound M1 to compound M2 is to modify the polar group on the third pigment molecule 3311 .

[0137] The process from compound M2 to compound M3 is to connect a silane coupling agent with a carboxyl group and / or an amino group to the third pigment molecule 3311, and the amino group and the carboxyl group can also serve as sites for connection with subsequent polymers.

[0138] The process from compound M3 to compound M4 is to connect a resin structure with a carboxyl group and / or an amino group to the silane group, wherein the resin structure itself can improve the dispersibility of the third pigment molecules 3311 and avoid the aggregation of the third pigment molecules 3311. In addition, the charge of the third pigment molecules 3311 and their surface structures after dissociation can be adjusted by adjusting the number of amino groups and / or carboxyl groups on the resin structure and the silane group.

[0139] Similarly, in the first color resist material and the second color resist material, the resin structure itself can improve the dispersibility of the first pigment molecules 3111 and the second pigment molecules 3211 , thereby preventing the first pigment molecules 3111 and the second pigment molecules 3211 from aggregating.

[0140] In some embodiments of this application, please combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 as well as Figures 7 to 10 , the first pigment particles 311 and the second pigment particles 321 are negatively charged, while the third pigment particles 331 are positively charged.

[0141] Next, the first color resist material and the second color resist material are mixed and coated on a side of the electrode layer 20 away from the first substrate 10 .

[0142] Then, voltage is applied to the first electrode 21 and the third electrode 23. Since the first pigment particles 311 are negatively charged and the third pigment particles 331 are positively charged, the first electrode 21 is connected to the positive electrode of the first power supply 61, and the third electrode 23 is connected to the negative electrode of the first power supply 61. Figure 7 shown.

[0143] In some embodiments, the voltage range of the first power supply 61 may be 0.5V / um-5V / um.

[0144] Next, the plurality of first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite electrical properties, and the plurality of first pigment particles 311 are aggregated on the first electrode 21 by van der Waals force; the plurality of third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite electrical properties, and the plurality of third pigment particles 331 are aggregated on the third electrode 23 by van der Waals force, as shown in FIG. Figure 8shown.

[0145] Then, the first substrate 10 is dried, exposed, developed, and baked to form a first color resist 31 on the first electrode 21 and a second color resist 32 on the second electrode 22. Figure 9 shown.

[0146] Next, a second photoresist material is coated on a side of the electrode layer 20 away from the first substrate 10 .

[0147] 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 electrode of the second power supply 62. The voltage applied to the first electrode 21 has a polarity opposite to that applied to the second electrode 22. Figure 10 shown.

[0148] In some embodiments, the voltage range of the second power supply 62 may be 0.5 V / um-5 V / um.

[0149] Then, the plurality of second pigment particles 321 are deposited on the second electrode 22 under the attraction of opposite electrical polarity, and the plurality of second pigment particles 321 are aggregated on the second electrode 22 by van der Waals force.

[0150] Then, the first substrate 10 is dried, exposed, developed, and baked to form the second color resist 32 on the second electrode 22. Figure 1 shown.

[0151] In other embodiments of this application, please combine Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 as well as Figures 11 to 13 When forming the first photoresist material, the second photoresist material and the third photoresist material, the first pigment particles 311 and the second pigment particles 321 are negatively charged, while the third pigment particles 331 are positively charged; it should be noted that the charge carried by the first pigment particles 311 is greater than the charge carried by the second pigment particles 321.

[0152] In some embodiments, the zeta potential of the first pigment particles 311 is greater than or equal to -30 mV, the zeta potential of the second pigment particles 321 ranges from -5 mV to 15 mV, the zeta potential of the third pigment particles 331 is greater than or equal to 30 mV, the first pigment particles 311 have a first potential, the second pigment particles 321 have 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.

[0153] The first photoresist material, the second photoresist material and the third photoresist material are mixed and coated on a side of the electrode layer 20 away from the first substrate 10 .

[0154] A first voltage is applied to the first electrode 21 and the third electrode 23. Since the first pigment particles 311 are negatively charged and the third pigment particles 331 are positively charged, the first electrode 21 is connected to the positive electrode of the third power supply 63 and the third electrode 23 is connected to the negative electrode of the third power supply 63. Figure 11 shown.

[0155] It should be noted that the first voltage is smaller. Since the potential of the second pigment particles 321 is lower, while the potentials of the first pigment particles 311 and the third pigment particles 331 are higher, the smaller first voltage can drive the first pigment particles 311 and the third pigment particles 331, but cannot drive the second pigment particles 321.

[0156] Next, the plurality of first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite electrical properties, and the plurality of first pigment particles 311 are aggregated on the first electrode 21 by van der Waals force; the plurality of third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite electrical properties, and the plurality of third pigment particles 331 are aggregated on the third electrode 23 by van der Waals force, as shown in FIG. Figure 12 shown.

[0157] Then, a second voltage is applied to the second electrode 22, such as Figure 13 Since the second pigment particles 321 are negatively charged, the second electrode 22 is connected to the positive electrode of the fourth power supply 64, and the negative electrode of the fourth power supply 64 can be grounded, and the voltage loaded on the first electrode 21 is of the same polarity as the voltage loaded on the second electrode 22.

[0158] The second voltage is relatively large and greater than the first voltage, and thus can drive the second pigment particles 321 with a relatively small potential.

[0159] Multiple first pigment particles 311 are deposited on the first electrode 21 under the attraction of opposite electrical properties, and then the multiple first pigment particles 311 are gathered on the first electrode 21 through van der Waals force; multiple third pigment particles 331 are deposited on the third electrode 23 under the attraction of opposite electrical properties, and then the multiple third pigment particles 331 are gathered on the third electrode 23 through van der Waals force.

[0160] Then, the first substrate 10 is dried, exposed, developed, and baked to form a first color resist 31 on the first electrode 21, a second color resist 32 on the second electrode 22, and a third color resist 33 on the third electrode 23. Figure 1 shown.

[0161] It is understandable thatFigures 11 to 13 The embodiment shown is relative to Figures 7 to 10 In the illustrated embodiment, the charge of the first pigment particles 311 and the charge of the second pigment particles 321 are set differently, so that the preparation of the first color resist 31, the second color resist 32 and the third color resist 33 can be completed in one process, further reducing the resource consumption in the process of the color resist layer 30.

[0162] To summarize, the embodiment of the present application arranges the first charged group 3113 and the second charged group 3213 on the first pigment particle 311 and the second pigment particle 321, respectively, and then applies 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, the utilization rate of the color resist material is improved, the loss of the color resist material can be 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.

[0163] In addition, the present invention also provides a display panel. Figure 14 and Figure 15 The display panel includes an array substrate 50 and the color filter substrate as described in the above embodiment, and the array substrate 50 is arranged opposite to the color filter substrate as described in the above embodiment.

[0164] In some embodiments, the array substrate 50 includes a second substrate 51 and a pixel electrode 53 arranged on the side of the second substrate 51 close to the color filter substrate. The display panel also includes a liquid crystal layer 80 arranged between the array substrate 50 and the color filter substrate. In an embodiment of the present application, 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 deflection in the liquid crystal layer 80.

[0165] 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 .

[0166] 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 a side of the color resist layer 30 away from the first substrate 10 .

[0167] Please refer to Figure 15 In some embodiments, the display panel further includes a second substrate 51 disposed on the side of the color filter 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 filter layer 30; and 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.

[0168] In addition, an embodiment of the present application further provides a display device, which includes a backlight module and the display panel described in the above embodiment, and the display panel is arranged on the light-emitting side of the backlight module.

[0169] It can be understood that, since the display device includes the display panel described in the above embodiment, the display device has the same beneficial effects as the display panel described in the above embodiment, which will not be described in detail here.

[0170] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify 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, "plurality" means two or more, unless otherwise specifically defined.

[0171] 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.

[0172] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0173] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A color film substrate, characterized in that: include: a first substrate; an electrode layer, disposed on the first substrate, the electrode layer comprising a plurality of first electrodes and a plurality of second electrodes disposed at intervals; a color resist layer, disposed on a side of the electrode layer away from the first substrate, the color resist layer comprising a plurality of first color resists and a plurality of second color resists, the first color resists being disposed on a side of the first electrode away from the first substrate, and the second color resists being disposed on a side of the second electrode away from the first substrate; A black matrix layer, wherein the black matrix layer is formed by a photolithography process; The first color resist includes a plurality of first pigment particles, the second color resist includes a plurality of second pigment particles, and 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 particles are connected to a first charged group, and the second pigment particles are connected to a second charged group.

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

4. The color film substrate according to claim 2, wherein: The charge property of the first charged group is the same as the charge property of the second charged group.

5. The color filter substrate according to claim 4, characterized in that: The first pigment particles have a first potential, the second pigment particles have a second potential, and a ratio of an absolute value of the first potential to an absolute value of the second potential is greater than or equal to 2.

6. The color film substrate according to any one of claims 2 to 5, characterized in that: The electrode layer further includes a plurality of third electrodes spaced apart from the first electrode and the second electrode; The color resist layer further includes a plurality of third color resists, and the third color resists are arranged on a side of the third electrode away from the first substrate; The third color resist includes a plurality of third pigment particles, and the third pigment particles are connected to third charged groups.

7. The color film substrate according to claim 6, characterized in that: The charge property of the third charged group is the same as that of the first charged group, or the charge property of the third charged group is the same as that of the second charged group.

8. The color film 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 film substrate according to claim 6, wherein: The first pigment particles are connected to a first molecular chain, and the first charged group is at least connected to the first molecular chain; The second pigment particles are connected to a second molecular chain, and the second charged group is at least connected to the second molecular chain; The third pigment particles are connected to a third molecular chain, and the third charged group is at least connected to the third molecular chain.

10. The color film substrate according to claim 9, characterized in that: The first molecular chain, the second molecular chain, and the third molecular chain include at least one of a silane group and a resin structure.

11. The color filter substrate according to claim 6, wherein: The orthographic projection of the black matrix layer on the first substrate is located between the orthographic projections of the adjacent first color resist and the second color resist on the first substrate, between the orthographic projections of the adjacent first color resist and the third color resist on the first substrate, and between the orthographic projections of the adjacent second color resist and the third color resist 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 electrodes and second electrodes, between adjacent first electrodes and third electrodes, and between adjacent second electrodes and third electrodes.

13. The color film substrate according to claim 6, wherein: The color film substrate further includes a first routing, a second routing, and a third routing arranged on the first substrate, wherein a plurality of the first electrodes are connected via the first routing, a plurality of the second electrodes are connected via the second routing, and a plurality of the third electrodes are connected via the third routing.

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

15. A method for manufacturing a color filter substrate, characterized in that: The method for manufacturing the color filter substrate is used to manufacture the color filter substrate according to any one of claims 1 to 14; The method for manufacturing the color filter substrate comprises the following steps: forming an electrode layer on the first substrate, wherein the electrode layer includes a plurality of first electrodes and a plurality of second electrodes that are spaced apart; A color resist layer is formed on a side of the electrode layer away from the first substrate by electrophoretic deposition, wherein the color resist layer includes a plurality of first color resists and a plurality of second color resists, wherein the first color resists are formed on a side of the first electrode away from the first substrate, and the second color resists are formed on a side of the second electrode away from the first substrate, wherein the first color resists include first pigment particles, and the second color resists include second pigment particles, and 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 a side of the electrode layer away from the first substrate by electrophoretic deposition comprises: forming a first color resist material and a second color resist material on a side of the electrode layer away from the first substrate, and applying a voltage to the first electrode and the second electrode, wherein the polarity of the voltage applied to the first electrode is opposite to that of the voltage applied to the second electrode; Alternatively, the voltage applied to the first electrode has the same polarity as the voltage applied to the second electrode, wherein the first pigment particles have a first potential, the second pigment particles have 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, characterized in that: The display panel includes an array substrate and the color filter substrate according to any one of claims 1 to 14, and the array substrate and the color filter substrate are arranged opposite to each other.

18. The display panel according to claim 17, wherein: The array substrate includes a second substrate and a pixel electrode arranged on a side of the second substrate close to the color filter substrate. The display panel also includes a liquid crystal layer arranged 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.

Images