Manufacturing method of display panel and display panel

Abstract

This application belongs to the field of display technology, specifically relating to a method for manufacturing a display panel and the display panel itself. The method for manufacturing the display panel includes: fabricating a light-transmitting auxiliary substrate and forming a plurality of support pillars on one side of the auxiliary substrate; fabricating a first substrate and a second substrate, and dispensing liquid crystal material, including nematic liquid crystal and reactive mesocrystalline, onto the display areas of the first substrate and the second substrate respectively; mounting the auxiliary substrate onto one side of the first substrate and the second substrate respectively; irradiating the display areas of the first substrate and the second substrate with ultraviolet light from one side of the auxiliary substrate to complete the ultraviolet light alignment of the liquid crystal on one side of the first substrate and the second substrate; removing the auxiliary substrate; adding dye to the liquid crystal material of at least one of the first substrate and the second substrate; and then assembling the first substrate and the second substrate into a cell. Adding the dye after the ultraviolet light alignment of the liquid crystal prevents the dye from being decomposed by ultraviolet light irradiation during the ultraviolet light alignment process, thereby improving the contrast of the display panel.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a method for manufacturing a display panel and the display panel itself. Background Technology

[0002] Liquid crystal display (LCD) panels can be mainly classified into twisted nematic (TN) liquid crystals, in-plane switching (IPS) liquid crystals, and vertical alignment (VA) liquid crystals, based on the initial orientation arrangement of liquid crystal molecules and the deflection motion mode driven by an electric field.

[0003] Polymer-stabilized vertically aligned liquid crystals (PSVA) are a type of vertically aligned liquid crystal. They achieve stable anchoring of liquid crystal molecules by adding a small amount of reactive mesoderm (RM) to the liquid crystal and then polymerizing it under ultraviolet (UV) light to form a polymer network. PSVA offers advantages such as fast response time, high contrast, and high transmittance, making it widely applicable to mid-to-high-end display applications such as large-screen TVs, gaming monitors, and automotive displays.

[0004] Adding dyes to polymer-stabilized vertically aligned liquid crystals can reduce dark-state brightness, thereby improving the contrast of the display panel. However, dyes are highly sensitive to ultraviolet light, and during the ultraviolet alignment process of polymer-stabilized vertically aligned liquid crystals, the dyes easily decompose, leading to a decrease in the contrast of the display panel. Summary of the Invention

[0005] The purpose of this application is to provide a method for manufacturing a display panel and a display panel in order to solve the problem of dye decomposition in the ultraviolet light alignment process and improve the contrast of the display panel.

[0006] To achieve the above objectives, this application provides a method for manufacturing a display panel, comprising:

[0007] A light-transmitting auxiliary substrate is fabricated, and a plurality of support pillars are formed on one side of the auxiliary substrate, wherein the plurality of support pillars are disposed at least in two opposite edge regions of the auxiliary substrate; A first substrate and a second substrate are fabricated, wherein one of the first substrate and the second substrate is an array substrate and the other is a counter substrate. Liquid crystal materials are drop-coated on the display areas of the first substrate and the display areas of the second substrate, respectively. The liquid crystal materials include nematic liquid crystals and reactive mesocrystalline liquid crystals. The auxiliary substrate is respectively mounted on one side of the first substrate and the second substrate, and the support column is supported on the non-display area of ​​the first substrate and the non-display area of ​​the second substrate, so that the auxiliary substrate and the liquid crystal material are separated. By irradiating the display areas of the first substrate and the second substrate from one side of the auxiliary substrate with ultraviolet light, the ultraviolet light alignment of the liquid crystal on the first substrate side and the ultraviolet light alignment of the liquid crystal on the second substrate side are completed. Remove the auxiliary substrate, add dye to the liquid crystal material of at least one of the first substrate and the second substrate, and then assemble the first substrate and the second substrate into a cell.

[0008] Optionally, the first substrate includes a first substrate and a first barrier wall, the first barrier wall being disposed around the display area of ​​the first substrate, and the second substrate includes a second substrate and a second barrier wall, the second barrier wall being disposed around the display area of ​​the second substrate. After the first substrate and the second substrate are assembled and bonded, the first barrier wall is located inside, outside or aligned with the second barrier wall.

[0009] Optionally, after the first substrate and the second substrate are assembled and bonded, the first barrier wall is aligned with the second barrier wall, and after the auxiliary substrate is installed on one side of the first substrate, the first barrier wall is located inside the support column and in contact with the support column.

[0010] Optionally, the auxiliary substrate includes a third substrate and an alignment electrode layer, wherein the alignment electrode layer is formed on the side of the third substrate where the support pillar is disposed.

[0011] Optionally, the alignment electrode layer is provided with a plurality of arrayed focusing lenses on the side away from the third substrate. Each focusing lens corresponds to a sub-pixel of the display panel, and the orthographic projection of the sub-pixel on the auxiliary substrate is located within the focusing lens.

[0012] Optionally, the method of assembling the first substrate and the second substrate into a cell includes: A frame adhesive is applied around the display area in the non-display area of ​​the first substrate; The second substrate is cooled down to increase the viscosity of the liquid crystal material on the second substrate or to crystallize and solidify it. Then the second substrate is flipped over and bonded to the first substrate. The frame adhesive is thermo-cured and / or UV-cured.

[0013] Optionally, when cooling the second substrate, the temperature of the liquid crystal material of the second substrate is at least 1 degree Celsius higher than the crystallization and curing temperature of the liquid crystal material.

[0014] Optionally, the dye is added to the liquid crystal material of the second substrate during the cooling process.

[0015] Optionally, the method of assembling the first substrate and the second substrate into a cell includes: A frame adhesive is applied around the display area in the non-display area of ​​the first substrate; Remove the remaining liquid crystal material after the second substrate is aligned with ultraviolet light, and then flip the second substrate and attach it to the first substrate. The frame adhesive is thermo-cured and / or UV-cured.

[0016] This application also provides a display panel, which is manufactured using the same method.

[0017] The method for manufacturing the display panel disclosed in this application and the display panel itself have the following beneficial effects: In this application, the method for manufacturing a display panel includes: fabricating a light-transmitting auxiliary substrate and forming a plurality of support pillars on one side of the auxiliary substrate; fabricating a first substrate and a second substrate, and dispensing liquid crystal material, including nematic liquid crystal and reactive mesocrystalline, onto the display areas of the first substrate and the second substrate respectively; mounting the auxiliary substrate onto one side of the first substrate and the second substrate respectively, thereby creating a gap between the auxiliary substrate and the liquid crystal material; irradiating the display areas of the first substrate and the second substrate with ultraviolet light from one side of the auxiliary substrate respectively, thereby completing the ultraviolet light alignment of the liquid crystal on one side of the first substrate and the second substrate; removing the auxiliary substrate; adding dye to the liquid crystal material of at least one of the first substrate and the second substrate; and then assembling the first substrate and the second substrate into a cell. Adding the dye after the ultraviolet light alignment of the liquid crystal prevents the dye from being decomposed by ultraviolet light irradiation during the ultraviolet light alignment process, thus improving the contrast of the display panel.

[0018] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0019] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0021] Figure 1 This is a flowchart illustrating the manufacturing method of the display panel in Embodiment 1 of this application.

[0022] Figure 2This is a schematic diagram of the fabrication of the auxiliary substrate in Embodiment 1 of this application.

[0023] Figure 3 This is a schematic diagram of liquid crystal material being deposited on a first substrate in Embodiment 1 of this application.

[0024] Figure 4 This is a schematic diagram of liquid crystal material being deposited on a second substrate in Embodiment 1 of this application.

[0025] Figure 5 This is a schematic diagram of the ultraviolet light alignment of the liquid crystal on one side of the first substrate in Embodiment 1 of this application.

[0026] Figure 6 This is a schematic diagram of adding dye to liquid crystal material in Embodiment 1 of this application.

[0027] Figure 7 This is a schematic diagram of the first substrate and the second substrate forming a cell in Embodiment 1 of this application.

[0028] Figure 8 A schematic diagram of the display panel structure in Embodiment 2 of this application.

[0029] Explanation of reference numerals in the attached figures: 100, Auxiliary substrate; 110, Third substrate; 120, Alignment electrode layer; 130, Condensing lens; 200. Support column; 300, First substrate; 310, First substrate substrate; 320, Color resist layer; 330, First barrier layer; 400, Second substrate; 410, Second substrate; 420, Driving circuit layer; 430, Second barrier; 500. Liquid crystal materials; 510. Nematic liquid crystals; 520. Reactive mesopranostics; 530. Dyes; 600, frame adhesive. Detailed Implementation

[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0031] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0032] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present application, and should not be construed as limiting the present application.

[0033] Example 1 See Figures 1 to 7 As shown, the method for manufacturing the display panel in this embodiment includes: S100: A light-transmitting auxiliary substrate 100 is fabricated, and a plurality of support pillars 200 are formed on one side of the auxiliary substrate 100. The plurality of support pillars 200 are provided at least on two opposite edge regions of the auxiliary substrate 100.

[0034] The height of the support pillars 200 fabricated on the auxiliary substrate 100 is greater than the thickness of the liquid crystal layer of the fabricated display panel. When the width of the support pillars 200 is large enough to stably support the auxiliary substrate 100, the support pillars 200 can be provided only on the two opposite edge areas of the auxiliary substrate 100; the support pillars 200 can also be provided on the four edge areas around the auxiliary substrate 100, thereby improving the stability of supporting the auxiliary substrate 100. Multiple support pillars 200 can be provided on the auxiliary substrate 100, with adjacent support pillars 200 spaced apart, and all support pillars 200 can also be connected together. The support pillars 200 can be made of organic materials such as polymethyl methacrylate (PMMA).

[0035] S200: Fabricate a first substrate 300 and a second substrate 400, one of which is an array substrate and the other is a counter substrate. Liquid crystal material 500 is deposited on the display area of ​​the first substrate 300 and the display area of ​​the second substrate 400, respectively. Liquid crystal material 500 includes nematic liquid crystal 510 and reactive mesocrystalline 520.

[0036] For example, the first substrate 300 is a color filter substrate, which includes a first substrate 310 and a color resist layer 320, with the color resist layer 320 disposed on one side of the first substrate 310; the second substrate 400 is an array substrate, which includes a second substrate 410 and a driving circuit layer 420, with the driving circuit layer 420 disposed on one side of the second substrate 410. It should be understood that before the liquid crystal material 500 is deposited, alignment films are also coated on the first substrate 300 and the second substrate 400. The liquid crystal material 500 on one side of the first substrate 300 may be half of the liquid crystal layer of the display panel, and the liquid crystal material 500 on one side of the second substrate 400 may be the other half of the liquid crystal layer of the display panel.

[0037] S300: The auxiliary substrate 100 is respectively mounted on one side of the first substrate 300 and the second substrate 400, and the support column 200 is supported in the non-display area of ​​the first substrate 300 and the non-display area of ​​the second substrate 400, so that the auxiliary substrate 100 and the liquid crystal material 500 are separated.

[0038] The support post 200 is supported in the non-display area of ​​the first substrate 300 and the non-display area of ​​the second substrate 400. The support post 200 does not contact the liquid crystal material 500. The auxiliary substrate 100 is spaced apart from the liquid crystal material 500. Removing the auxiliary substrate 100 will not take away the drop-coated liquid crystal material 500.

[0039] S400: Ultraviolet light is used to irradiate the display areas of the first substrate 300 and the second substrate 400 from one side of the auxiliary substrate 100, respectively, to complete the ultraviolet light alignment of the liquid crystal on one side of the first substrate 300 and the ultraviolet light alignment of the liquid crystal on one side of the second substrate 400.

[0040] While ultraviolet light irradiates the display areas of the first substrate 300 and the second substrate 400 to perform ultraviolet light alignment of the liquid crystals, a vertical alternating electric field is provided to drive the liquid crystal molecules in the liquid crystal material 500 to deflect. The reactive mesomorphs 520 in the liquid crystal material 500 will polymerize onto the alignment film to form a polymer network, causing the liquid crystal molecules to form a preset tilt angle.

[0041] S500: Remove the auxiliary substrate 100, add dye 530 to at least one of the liquid crystal material 500 of the first substrate 300 and the second substrate 400, and then assemble the first substrate 300 and the second substrate 400 into a cell.

[0042] Remove the auxiliary substrate 100, and the support pillars 200 disposed on the auxiliary substrate 100 are also removed. The dye 530 can be added to the liquid crystal material 500 of one of the first substrate 300 and the second substrate 400, or the dye 530 can be added to the liquid crystal material 500 of both the first substrate 300 and the second substrate 400, depending on the amount of dye 530 added.

[0043] Adding dye 530 to polymer-stabilized vertically aligned liquid crystals can reduce dark-state brightness, thereby improving the contrast of the display panel. However, dye 530 is highly sensitive to ultraviolet light, and it easily decomposes during the ultraviolet alignment process of polymer-stabilized vertically aligned liquid crystals, leading to a decrease in the contrast of the display panel.

[0044] In this embodiment, the method for manufacturing a display panel includes: fabricating a light-transmitting auxiliary substrate 100, forming a plurality of support pillars 200 on one side of the auxiliary substrate 100; fabricating a first substrate 300 and a second substrate 400, respectively, and depositing liquid crystal material 500 into the display area of ​​the first substrate 300 and the display area of ​​the second substrate 400, the liquid crystal material 500 including nematic liquid crystal 510 and reactive mesocrystalline 520; mounting the auxiliary substrate 100 onto one side of the first substrate 300 and the second substrate 400 respectively, so that the auxiliary substrate 100 and the liquid crystal material 500 are spaced apart; irradiating the display area of ​​the first substrate 300 and the display area of ​​the second substrate 400 with ultraviolet light from one side of the auxiliary substrate 100 respectively, to complete the ultraviolet light alignment of the liquid crystal on one side of the first substrate 300 and the ultraviolet light alignment of the liquid crystal on one side of the second substrate 400; removing the auxiliary substrate 100, adding dye 530 to at least one of the liquid crystal material 500 of the first substrate 300 and the second substrate 400, and then assembling the first substrate 300 and the second substrate 400 into a cell. Adding dye 530 after the liquid crystal ultraviolet alignment process can prevent dye 530 from being decomposed by ultraviolet light during the liquid crystal ultraviolet alignment process, thereby improving the contrast of the display panel.

[0045] In some embodiments, the first substrate 300 includes a first substrate 310 and a first barrier 330, the first barrier 330 being disposed around the display area of ​​the first substrate 300. The first substrate 300 also includes a color resist layer 320, the first barrier 330 being disposed on the side of the color resist layer 320 away from the first substrate 310. The second substrate 400 includes a second substrate 410 and a second barrier 430, the second barrier 430 being disposed around the display area of ​​the second substrate 400. The second substrate 400 also includes a driving circuit layer 420, the second barrier 430 being disposed on the side of the driving circuit layer 420 away from the second substrate 410.

[0046] After the first substrate 300 and the second substrate 400 are assembled and bonded together, the first barrier wall 330 is located inside or outside the second barrier wall 430, and the height of both the first barrier wall 330 and the second barrier wall 430 is equal to the distance between the first substrate 300 and the second substrate 400. Furthermore, after the first substrate 300 and the second substrate 400 are assembled and bonded together, the first barrier wall 330 and the second barrier wall 430 can also be centered and aligned.

[0047] Liquid crystal material 500 is drop-coated onto the first substrate 300 and the second substrate 400, requiring the liquid crystal material 500 to diffuse and cover the entire display area. However, controlling the liquid crystal material 500 to precisely cover the entire display area is difficult, and there are cases where the liquid crystal material 500 diffuses beyond the display area or does not cover the entire display area. The first substrate 300 includes a first barrier 330, and the second substrate 400 includes a second barrier 430. The first barrier 330 and the second barrier 430 can prevent the diffusion of the liquid crystal material 500.

[0048] In some embodiments, after the first substrate 300 and the second substrate 400 are assembled and bonded, the first barrier 330 and the second barrier 430 are aligned. After the auxiliary substrate 100 is installed on one side of the first substrate 300, the first barrier 330 is located inside the support post 200 and contacts the support post 200; the second barrier 430 is located inside the support post 200 and contacts the support post 200.

[0049] After the auxiliary substrate 100 is mounted on one side of the first substrate 300 and the second substrate 400, the first barrier 330 is located inside the support column 200 and contacts the support column 200, and the second barrier 430 is located inside the support column 200 and contacts the support column 200. The first barrier 330 and the second barrier 430 can be used to position the horizontal position of the auxiliary substrate 100 and prevent lateral misalignment between the auxiliary substrate 100 and the first substrate 300 and the second substrate 400.

[0050] In some embodiments, the auxiliary substrate 100 includes a third substrate 110 and an alignment electrode layer 120, wherein the alignment electrode layer 120 is formed on the side of the third substrate 110 where the support pillar 200 is disposed.

[0051] In the ultraviolet alignment process of liquid crystals, a vertical alternating electric field needs to be formed to drive the liquid crystal molecules in the liquid crystal material 500 to deflect while the display area is irradiated with ultraviolet light. The auxiliary substrate 100 includes an alignment electrode layer 120. The alignment electrode layer 120 and the common electrode layer of the driving circuit layer 420 of the second substrate 400 can form a vertical alternating electric field without the need for an external electric field.

[0052] It should be noted that the auxiliary substrate 100 includes at least a third substrate 110. The third substrate 110 has no other light-shielding structure and only one side. Compared with the technical solution of irradiating the display area with ultraviolet light from one side of the array substrate or color filter substrate to align the liquid crystal with ultraviolet light, the auxiliary substrate 100 has higher light transmittance, which is beneficial to improving production efficiency.

[0053] In some embodiments, a plurality of arrayed focusing lenses 130 are disposed on the side of the alignment electrode layer 120 away from the third substrate 110. Each focusing lens 130 corresponds one-to-one with a sub-pixel of the display panel, and the orthogonal projection of the sub-pixel onto the auxiliary substrate 100 lies within the focusing lens 130. The focusing lens 130 may be made of transparent materials such as silicon oxide, silicon nitride, or photoresist. When setting the focusing lens 130, the height of the support pillar 200 needs to be increased to prevent the focusing lens 130 from contacting the liquid crystal material 500.

[0054] It should be noted that a condenser lens 130 can be set for each sub-pixel, but it is not limited to this. A condenser lens 130 can also be set for one row of sub-pixels, multiple rows of sub-pixels, one column of sub-pixels, or multiple columns of sub-pixels, depending on the situation.

[0055] The condenser lens 130 focuses the ultraviolet light that would otherwise illuminate the non-aperture area onto the pixel aperture area, which improves the utilization rate of ultraviolet light and reduces the amount of reactive mesomorph 520 used. When the reactive mesomorph 520 aggregates onto the alignment film in the pixel aperture area, the concentration of reactive mesomorph 520 in the pixel aperture area decreases, and the reactive mesomorph 520 in the non-aperture area diffuses into the pixel aperture area, thus reducing the amount of reactive mesomorph 520 used.

[0056] In some embodiments, a method for assembling a first substrate 300 and a second substrate 400 into a cell includes: A frame adhesive 600 surrounding the display area is applied to the non-display area of ​​the first substrate 300; The second substrate 400 is cooled down to increase the viscosity of the liquid crystal material 500 on the second substrate 400 or to crystallize and solidify it. Then the second substrate 400 is flipped over and assembled with the first substrate 300. The frame adhesive is heat-cured and / or UV-cured using 600 heat.

[0057] It should be noted that when the first substrate 300 includes a first baffle 330 and the second substrate 400 includes a second baffle 430, the sealant 600 is applied to the outer sides of the first baffle 330 and the second baffle 430. Cooling the second substrate 400 can be achieved by placing the first substrate 300 and the second substrate 400 as a whole in a low-temperature environment, thereby increasing the viscosity of the liquid crystal material 500 on the second substrate 400 or allowing it to crystallize and solidify. Alternatively, the liquid crystal material 500 on the second substrate 400 can be locally cooled to a low temperature. Cooling the second substrate 400 increases the viscosity of the liquid crystal material 500 at low temperatures; as long as the liquid crystal material 500 does not flow and cause loss when the second substrate 400 is flipped, this is acceptable.

[0058] The second substrate 400 is cooled down to increase the viscosity of the liquid crystal material 500 or to solidify it. The second substrate 400 and the first substrate 300 are flipped and bonded together, so that the liquid crystal material 500 will not be lost due to flow.

[0059] In some embodiments, when cooling the second substrate 400, the temperature of the liquid crystal material 500 of the second substrate 400 is at least 1 degree Celsius higher than the crystallization and curing temperature of the liquid crystal material 500. For example, if the crystallization and curing temperature of the liquid crystal material 500 is -30 degrees Celsius, the liquid crystal material 500 of the second substrate 400 can be cooled to -25 degrees Celsius to 29 degrees Celsius.

[0060] When cooling the second substrate 400, the viscosity of the liquid crystal material 500 of the second substrate 400 is increased, but the temperature is not reduced to the point that the liquid crystal material 500 of the second substrate 400 crystallizes and solidifies. This can prevent irreversible damage to the polymer network caused by the crystallization and solidification of the liquid crystal material 500, which would affect the display effect of the display panel.

[0061] In some embodiments, during the cooling process of the second substrate 400, dye 530 is added to the liquid crystal material 500 of the second substrate 400.

[0062] During the low-temperature cooling process of the liquid crystal material 500 on the second substrate 400, dye 530 is added. Low-temperature cooling can slow down the diffusion of dye 530 or even freeze dye 530. During the UV curing process of frame adhesive 600, there is no dye 530 or less dye 530 in the display area near frame adhesive 600. Even if a small amount of UV light irradiates the display area near frame adhesive 600, the decomposition of dye 530 caused by UV light is small and does not affect the display effect of the display panel.

[0063] In some embodiments, a method for assembling a first substrate 300 and a second substrate 400 into a cell includes: A frame adhesive 600 surrounding the display area is applied to the non-display area of ​​the first substrate 300; Remove the remaining liquid crystal material 500 after the second substrate 400 is aligned with ultraviolet light, and then flip the second substrate 400 and assemble it with the first substrate 300. The frame adhesive is heat-cured and / or UV-cured using 600 heat.

[0064] It should be noted that removing the remaining liquid crystal material 500 after ultraviolet light alignment of the second substrate 400 will not affect the polymer network formed on the alignment film. When using the technical solution of removing the remaining liquid crystal material 500 after ultraviolet light alignment of the second substrate 400, the amount of liquid crystal material 500 deposited on one side of the first substrate 300 is equal to or approximately equal to the amount of liquid crystal used in the display panel. When the first substrate 300 also includes a first barrier 330, the height of the first barrier 330 is equal to the distance between the first substrate 300 and the second substrate 400, and the second substrate 400 may not have a second barrier 430.

[0065] After removing the remaining liquid crystal material 500 from the second substrate 400 for ultraviolet light alignment, and then flipping the second substrate 400 to assemble and bond it with the first substrate 300, the step of cooling the second substrate 400 to increase the viscosity of the liquid crystal material 500 or crystallize and solidify it can be eliminated. This simplifies the manufacturing process of the display panel, saves manufacturing costs, and improves production efficiency.

[0066] Example 2 This application also provides a method for manufacturing a display panel, wherein the display panel is manufactured using the above-disclosed method for manufacturing display panels. See also Figure 8 As shown, once the display panel is manufactured, wait for the dye 530 to diffuse evenly throughout the entire display area.

[0067] In this embodiment, the display panel is manufactured using the display panel manufacturing method disclosed above. The manufacturing method includes: fabricating a light-transmitting auxiliary substrate 100, and forming a plurality of support pillars 200 on one side of the auxiliary substrate 100; fabricating a first substrate 300 and a second substrate 400, and dispensing liquid crystal material 500 onto the display areas of the first substrate 300 and the second substrate 400, respectively. The liquid crystal material 500 includes nematic liquid crystal 510 and reactive mesocrystalline liquid crystal 520; and mounting the auxiliary substrate 100 onto the first substrate 300 and the second substrate 400, respectively. On one side of the two substrates 400, the auxiliary substrate 100 and the liquid crystal material 500 are spaced apart. Ultraviolet light is used to irradiate the display areas of the first substrate 300 and the second substrate 400 from the auxiliary substrate 100 side, respectively, completing the ultraviolet alignment of the liquid crystal on the first substrate 300 side and the second substrate 400 side. The auxiliary substrate 100 is removed, and dye 530 is added to the liquid crystal material 500 of at least one of the first substrate 300 and the second substrate 400. Then, the first substrate 300 and the second substrate 400 are assembled into a cell. The dye 530 is added after the ultraviolet alignment of the liquid crystal, which prevents the dye 530 from being decomposed by ultraviolet light during the ultraviolet alignment process, thus improving the contrast of the display panel.

[0068] The terms "first," "second," etc., 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 with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0069] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A method for manufacturing a display panel, characterized in that, include: A light-transmitting auxiliary substrate is fabricated, and a plurality of support pillars are formed on one side of the auxiliary substrate, wherein the plurality of support pillars are disposed at least in two opposite edge regions of the auxiliary substrate; A first substrate and a second substrate are fabricated, wherein one of the first substrate and the second substrate is an array substrate and the other is a counter substrate. Liquid crystal materials are drop-coated on the display areas of the first substrate and the display areas of the second substrate, respectively. The liquid crystal materials include nematic liquid crystals and reactive mesocrystalline liquid crystals. The auxiliary substrate is respectively mounted on one side of the first substrate and the second substrate, and the support column is supported on the non-display area of ​​the first substrate and the non-display area of ​​the second substrate, so that the auxiliary substrate and the liquid crystal material are separated. By irradiating the display areas of the first substrate and the second substrate from one side of the auxiliary substrate with ultraviolet light, the ultraviolet light alignment of the liquid crystal on the first substrate side and the ultraviolet light alignment of the liquid crystal on the second substrate side are completed. Remove the auxiliary substrate, add dye to the liquid crystal material of at least one of the first substrate and the second substrate, and then assemble the first substrate and the second substrate into a cell.

2. The method for manufacturing a display panel according to claim 1, characterized in that, The first substrate includes a first substrate and a first barrier wall, the first barrier wall being disposed around the display area of ​​the first substrate. The second substrate includes a second substrate and a second barrier wall, the second barrier wall being disposed around the display area of ​​the second substrate. After the first substrate and the second substrate are assembled and bonded, the first barrier wall is located inside, outside or aligned with the second barrier wall.

3. The method for manufacturing a display panel according to claim 2, characterized in that, After the first substrate and the second substrate are assembled and bonded together, the first barrier wall is aligned with the second barrier wall. After the auxiliary substrate is installed on one side of the first substrate, the first barrier wall is located inside the support column and in contact with the support column.

4. The method for manufacturing a display panel according to claim 1, characterized in that, The auxiliary substrate includes a third substrate and an alignment electrode layer, wherein the alignment electrode layer is formed on the side of the third substrate where the support pillar is disposed.

5. The method for manufacturing a display panel according to claim 4, characterized in that, The alignment electrode layer is provided with a plurality of arrayed focusing lenses on the side away from the third substrate. Each focusing lens corresponds to a sub-pixel of the display panel, and the orthogonal projection of the sub-pixel on the auxiliary substrate is located within the focusing lens.

6. The method for manufacturing a display panel according to claim 1, characterized in that, A method for assembling a cell using the first substrate and the second substrate includes: A frame adhesive is applied around the display area in the non-display area of ​​the first substrate; The second substrate is cooled down to increase the viscosity of the liquid crystal material on the second substrate or to crystallize and solidify it. Then the second substrate is flipped over and bonded to the first substrate. The frame adhesive is thermo-cured and / or UV-cured.

7. The method for manufacturing a display panel according to claim 6, characterized in that, When the second substrate is cooled, the temperature of the liquid crystal material of the second substrate is at least 1 degree Celsius higher than the crystallization and curing temperature of the liquid crystal material.

8. The method for manufacturing a display panel according to claim 6, characterized in that, During the cooling process of the second substrate, the dye is added to the liquid crystal material of the second substrate.

9. The method for manufacturing a display panel according to claim 6, characterized in that, A method for assembling a cell using the first substrate and the second substrate includes: A frame adhesive is applied around the display area in the non-display area of ​​the first substrate; Remove the remaining liquid crystal material after the second substrate is aligned with ultraviolet light, and then flip the second substrate and attach it to the first substrate. The frame adhesive is thermo-cured and / or UV-cured.

10. A display panel, characterized in that, The display panel is manufactured using the method described in any one of claims 1 to 9.

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