Manufacturing method of display panel and display panel

Abstract

The application belongs to the field of display, and particularly relates to a display panel manufacturing method and a display panel. The display panel manufacturing method comprises manufacturing an array substrate and a color developing substrate. The array substrate comprises a first substrate and a dam. The first substrate comprises a plurality of first areas arranged in an array and a second area around the first areas. The dam is arranged around the first areas to form a plurality of groove structures. The color developing substrate comprises a second substrate and a light adjusting layer. The light adjusting layer comprises a plurality of light adjusting units corresponding to the groove structures. The light adjusting units at least comprise one of convex lenses and concave lenses. The light adjusting layer comprises at least three light adjusting units with different refractive powers. Cholesteric liquid crystal is dripped into the groove structures of the array substrate. The color developing substrate is installed on one side of the array substrate. Ultraviolet light is used to irradiate the cholesteric liquid crystal from the color developing substrate to complete ultraviolet light color development. The ultraviolet light color development process is completed through one-time exposure of a mask, thereby reducing the process complexity and production cost 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] Electronic paper (ePaper) panels are reflective display panels with unique advantages such as paper-like display, low power consumption, and eye protection. They can be used in e-book readers, electronic tags, electronic whiteboards, and commercial billboards. Based on different display principles, electronic paper can be divided into electrophoretic display electronic paper, cholesteric liquid crystal electronic paper, and electrowetting display electronic paper, among others.

[0003] Cholesteric liquid crystals can exist in a planar state or a focal conical state. In the focal conical state, the liquid crystal molecules are arranged to allow light to pass through; in the planar state, the liquid crystal molecules are arranged in an orderly manner and can reflect light of a specific wavelength, thus displaying the corresponding color. For example, a cholesteric liquid crystal with a pitch of 650 nm can reflect red light (R), a cholesteric liquid crystal with a pitch of 550 nm can reflect green light (G), and a cholesteric liquid crystal with a pitch of 450 nm can reflect blue light (B).

[0004] When manufacturing electronic paper display panels, ultraviolet (UV) light is used to irradiate cholesteric liquid crystals to change the liquid crystal pitch, enabling the liquid crystals to reflect different colors of light (i.e., the UV color development process of cholesteric liquid crystals). In existing technologies, to achieve RGB color display, the UV color development process of cholesteric liquid crystals requires three sets of photomasks, which significantly increases the complexity of the manufacturing process and the production cost 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 reduce the complexity of the manufacturing process and the production cost of the display panel.

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

[0007] An array substrate is fabricated, the array substrate including a first substrate and a barrier wall. The first substrate includes a plurality of first regions arranged in an array and a second region surrounding the first regions. Each first region corresponds to a plurality of sub-pixels located in the same row or column. The barrier wall is disposed on one side of the first substrate, and the barrier wall is arranged to form a plurality of groove structures around the first regions. A color-developing substrate is fabricated, the color-developing substrate comprising a second substrate and a dimming layer, the dimming layer being disposed on one side of the second substrate, the dimming layer comprising a plurality of dimming units corresponding to the groove structure, the dimming unit comprising at least one of a convex lens and a concave lens, and the dimming layer comprising at least three dimming units with different refractive powers. Cholesteric liquid crystal is dropped into the groove structure of the array substrate, and the color display substrate is mounted on one side of the array substrate. Ultraviolet light is used to irradiate the cholesteric liquid crystal from one side of the color display substrate to complete ultraviolet color development. The dimming unit with different refractive power makes the irradiance of ultraviolet light irradiating different cholesteric liquid crystals different. Different cholesteric liquid crystals reflect at least red light, green light and blue light respectively.

[0008] Optionally, the dimming unit includes a convex lens, a plano lens, and a concave lens. The cholesteric liquid crystal corresponding to the convex lens reflects red light, the cholesteric liquid crystal corresponding to the plano lens reflects green light, and the cholesteric liquid crystal corresponding to the concave lens reflects blue light.

[0009] Optionally, the edge of the orthographic projection of the convex lens on the first substrate is located outside the orthographic projection of the corresponding groove structure on the first substrate, and the orthographic projection of the concave lens on the first substrate coincides with the orthographic projection of the corresponding groove structure on the first substrate.

[0010] Optionally, the dimming unit is a convex lens and a planar lens, or the dimming unit is a concave lens and a planar lens.

[0011] Optionally, the color display substrate is an opposing substrate, and the method for manufacturing the display panel includes: After completing the ultraviolet light color development, the dimming unit of the dimming layer is filled with the same material as the dimming layer or the dimming layer is removed.

[0012] Optionally, the color display substrate is an opposing substrate, and the method for manufacturing the display panel includes: Before ultraviolet light color development, a frame adhesive is formed on the second substrate to surround the barrier, and the frame adhesive is cured during ultraviolet light color development.

[0013] Optionally, the method for manufacturing the display panel further includes: Remove the color-developing substrate; A frame adhesive is formed on the second substrate to surround the barrier. An opposing substrate is mounted on one side of the array substrate. First, the cholesteric liquid crystal located in the display area is blocked by a photomask. Then, the frame adhesive is cured by irradiating it with ultraviolet light.

[0014] Optionally, the first substrate has a positioning protrusion on the side near the color display substrate, the positioning protrusion surrounding the baffle wall; the second substrate has a positioning groove on the side near the array substrate; and the method for manufacturing the display panel further includes: When the color display substrate is mounted to one side of the array substrate, the positioning boss is embedded into the positioning groove.

[0015] This application also provides a display panel, which is manufactured using the same method.

[0016] Optionally, the cross-sectional size of the barrier gradually decreases from the side closest to the first substrate to the side furthest from the first substrate. The groove structure of the cholesteric liquid crystal that reflects red light is a first groove, and the groove structure of the cholesteric liquid crystal that reflects green light is a second groove. A portion of the sidewalls of the first groove and the second groove are provided with a reflective film. The distance between the reflective film and the color display substrate is greater than 0. The reflectivity of the reflective film on the sidewall of the first groove is greater than the reflectivity of the reflective film on the sidewall of the second groove.

[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 an array substrate and a color display substrate. The array substrate includes a first substrate and a barrier. The first substrate includes multiple arrayed first regions and a second region surrounding the first regions. The barrier surrounds the first regions to form multiple groove structures. The color display substrate includes a second substrate and a dimming layer. The dimming layer is disposed on one side of the second substrate and includes multiple dimming units corresponding to the groove structures. Each dimming unit includes at least one of a convex lens and a concave lens. The dimming layer includes at least three dimming units with different refractive powers. Cholesteric liquid crystal is dropped into the groove structure of the array substrate. The color display substrate is then mounted on one side of the array substrate. Ultraviolet light is used to irradiate the cholesteric liquid crystal from one side of the color display substrate to complete ultraviolet color development. Because the dimming units with different refractive powers result in different irradiances of ultraviolet light irradiating different cholesteric liquid crystals, the different cholesteric liquid crystals can reflect red, green, and blue light respectively. This is equivalent to the ultraviolet color development process being completed in one exposure with a single photomask, reducing the complexity and production cost of manufacturing 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 2 This is a schematic diagram of ultraviolet light color development of cholesteric liquid crystal in Embodiment 1 of this application.

[0023] Figure 3 This is a schematic diagram of the partitioning of the first substrate in Embodiment 1 of this application.

[0024] Figure 4 This is a schematic diagram of a color display substrate with multiple different concave lenses in Embodiment 1 of this application.

[0025] Figure 5 This is a schematic diagram of a color display substrate with multiple different convex lenses in Embodiment 1 of this application.

[0026] Figure 6 This is a schematic diagram of the positioning boss embedded in the positioning groove in Embodiment 1 of this application.

[0027] Figure 7 This is a schematic diagram of the display panel structure in Embodiment 2 of this application.

[0028] Explanation of reference numerals in the attached figures: 100, Array substrate; 110, First substrate; 111, First region; 1111, Pixel region; 1112, Light-shielding region; 112, Second region; 120, Barrier; 121, First groove; 122, Second groove; 130, Positioning boss; 140, Reflective film; 200, Color display substrate; 210, Second substrate; 220, Dimming layer; 221, Convex lens; 222, Planar lens; 223, Concave lens; 230, Positioning groove; 300, Cholesteric phase liquid crystal. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Example 1 See Figures 1 to 3 As shown, the method for manufacturing the display panel in this embodiment includes: S100: Fabricate an array substrate 100. The array substrate 100 includes a first substrate 110 and a barrier 120. The first substrate 110 includes a plurality of arrayed first regions 111 and a second region 112 surrounding the first regions 111. Each first region 111 corresponds to a plurality of sub-pixels located in the same row or column. The barrier 120 is disposed on one side of the first substrate 110. The barrier 120 surrounds the first regions 111 to form a plurality of groove structures.

[0033] For example, the first substrate 110 includes a plurality of first regions 111 spaced apart in a row direction, each first region 111 corresponding to a column of sub-pixels. A barrier 120 is disposed around the first regions 111 in a second region 112, and the barrier 120 may be made of a black light-shielding material. The first region 111 may include a plurality of pixel regions 1111, each pixel region 1111 corresponding to one sub-pixel. In addition, the first region 111 may also include a light-shielding region 1112, which is located between adjacent pixel regions 1111. The light-shielding region 1112 may be provided with a light-shielding strip for light blocking, and the height of the light-shielding strip is less than the height of the barrier 120. The light-shielding strip may be made of a black light-shielding material, and the light-shielding strip and the barrier 120 may be integrally connected.

[0034] S200: Fabricate a color display substrate 200. The color display substrate 200 includes a second substrate 210 and a dimming layer 220. The dimming layer 220 is disposed on one side of the second substrate 210. The dimming layer 220 includes a plurality of dimming units with corresponding groove structures. Each dimming unit includes at least one of a convex lens 221 and a concave lens 223. The dimming layer 220 includes at least three dimming units with different refractive powers.

[0035] It should be understood that the array substrate 100 and the color display substrate 200 are fabricated independently, and the order in which they are fabricated is not restricted. The dimming layer 220 can be made of light-transmitting materials such as polymethyl methacrylate (PMMA) and polyimide (PI).

[0036] S300: Cholesteric liquid crystal 300 is dropped into the groove structure of the array substrate 100, and the color display substrate 200 is mounted on one side of the array substrate 100. Ultraviolet light is used to irradiate the cholesteric liquid crystal 300 from one side of the color display substrate 200 to complete ultraviolet light color display. The dimming unit with different refractive power makes the irradiance of ultraviolet light irradiating different cholesteric liquid crystals 300 different. Different cholesteric liquid crystals 300 reflect at least red light, green light and blue light respectively.

[0037] Cholesteric liquid crystal 300 can reflect or transmit light, and each sub-pixel can be controlled to transmit or reflect red, green or blue light, and the display panel can display images.

[0038] In related technologies, when manufacturing electronic paper display panels, ultraviolet light is used to irradiate cholesteric liquid crystal 300 to change the liquid crystal pitch, enabling the liquid crystal to reflect different colors of light. To achieve RGB color display, the ultraviolet color rendering process of the cholesteric liquid crystal 300 requires three sets of photomasks, significantly increasing the complexity of the manufacturing process and production costs.

[0039] In this embodiment, the array substrate 100 includes a first substrate 110 and a barrier 120. The first substrate 110 includes a plurality of arrayed first regions 111 and a second region 112 surrounding the first regions 111. The barrier 120 surrounds the first regions 111 to form a plurality of groove structures. The color display substrate 200 includes a second substrate 210 and a dimming layer 220. The dimming layer 220 is disposed on one side of the second substrate 210. The dimming layer 220 includes a plurality of dimming units disposed corresponding to the groove structures. The dimming unit includes at least one of a convex lens 221 and a concave lens 223. The dimming layer 220 includes at least three dimming units with different refractive powers. Cholesteric liquid crystal 300 is dropped into the groove structure of the array substrate 100. The color display substrate 200 is mounted on one side of the array substrate 100. Ultraviolet light is used to irradiate the cholesteric liquid crystal 300 from one side of the color display substrate 200 to complete ultraviolet light color display. Because the dimming units with different refractive powers cause the ultraviolet light irradiance to be different when irradiating different cholesteric liquid crystals 300, the different cholesteric liquid crystals 300 can reflect red light, green light and blue light respectively. This is equivalent to the ultraviolet color development process being completed in one exposure with a set of photomasks, which reduces the complexity of the manufacturing process and the production cost of the display panel.

[0040] In some embodiments, the dimming unit includes a convex lens 221, a plano lens 222, and a concave lens 223. The cholesteric liquid crystal 300 corresponding to the convex lens 221 reflects red light, the cholesteric liquid crystal 300 corresponding to the plano lens 222 reflects green light, and the cholesteric liquid crystal 300 corresponding to the concave lens 223 reflects blue light.

[0041] The convex lens 221 can converge light, increasing the irradiance of ultraviolet light in the first region 111 below the convex lens 221 by focusing the ultraviolet light originally illuminating the second region 112 onto the first region 111. The concave lens 223 can disperse light, reducing the irradiance of ultraviolet light in the first region 111 below the concave lens 223 by dispersing some of the ultraviolet light originally illuminating the first region 111 onto the second region 112. The plano lens 222 neither converges nor disperses light, and the irradiance of ultraviolet light in the first region 111 below the plano lens 222 is unaffected.

[0042] By setting a convex lens 221 to converge the light and a concave lens 223 to disperse the light, the difference in ultraviolet irradiance between different first regions 111 is increased, ensuring that ultraviolet color development of cholesteric liquid crystal 300 can be completed in a single exposure.

[0043] In some embodiments, the edge of the orthogonal projection of the convex lens 221 on the first substrate 110 is located outside the orthogonal projection of the corresponding groove structure on the first substrate 110, and the orthogonal projection of the concave lens 223 on the first substrate 110 coincides with the orthogonal projection of the corresponding groove structure on the first substrate 110.

[0044] The convex lens 221 completely covers the groove structure and extends to the second region 112 surrounding the groove structure, converging the ultraviolet light originally illuminating the second region 112 to the first region 111, thus increasing the irradiance of the ultraviolet light in the first region 111 below the convex lens 221. The concave lens 223 just covers the groove structure, dispersing some of the ultraviolet light originally illuminating the first region 111 to the second region 112, thus reducing the irradiance of the ultraviolet light in the first region 111 below the concave lens 223. The convex lens 221 extends to the periphery of the groove structure, maximizing the convergence of light, while the concave lens 223 just covers the groove structure, maximizing the dispersion of light.

[0045] In some embodiments, the dimming unit is a convex lens 221 and a flat lens 222, or the dimming unit is a concave lens 223 and a flat lens 222.

[0046] See Figure 4As shown, the dimming unit may include multiple concave lenses 223 with different refractive powers, i.e., the curvature and / or size of the concave lenses 223 are different. In addition, the dimming unit may also include a plano lens 222. The ultraviolet irradiance of the first region 111 below the concave lenses 223 and plano lens 222 is different. If three dimming units with different refractive powers are provided, for example, two concave lenses 223 with different refractive powers and one plano lens 222, cholesteric liquid crystal 300 reflecting red, green, and blue light can be formed. If three or more dimming units with different refractive powers are provided, for example, two or more concave lenses 223 with different refractive powers and one plano lens 222, cholesteric liquid crystal 300 reflecting red, green, and blue light, as well as cholesteric liquid crystal 300 reflecting yellow, cyan, and other colors, can be formed, thereby improving color saturation.

[0047] See Figure 5 As shown, the dimming unit may include multiple convex lenses 221 with different refractive powers, i.e., the curvature and / or size of the convex lenses 221 are different. In addition, the dimming unit may also include a plano lens 222. The ultraviolet irradiance of the first region 111 below the convex lenses 221 and plano lens 222 is different. If three dimming units with different refractive powers are provided, for example, two convex lenses 221 with different refractive powers and one plano lens 222, cholesteric liquid crystal 300 reflecting red, green, and blue light can be formed. If three or more dimming units with different refractive powers are provided, for example, two or more convex lenses 221 with different refractive powers and one plano lens 222, cholesteric liquid crystal 300 reflecting red, green, and blue light, as well as cholesteric liquid crystal 300 reflecting yellow, cyan, and other colors, can be formed, thereby improving color saturation.

[0048] In some embodiments, the color display substrate 200 is an opposing substrate, and the method for manufacturing the display panel includes: After completing the ultraviolet light color development, the dimming units of the dimming layer 220 are filled or the dimming layer 220 is removed using the same material as the dimming layer 220.

[0049] By using the same material as the dimming layer 220 to fill the dimming units of the dimming layer 220 or to remove the dimming layer 220, the color display substrate 200 can be used as an opposing substrate, reducing the complexity of the manufacturing process and the production cost of the display panel.

[0050] It should be noted that when the dimming unit includes multiple convex lenses 221 with different refractive powers and does not include a concave lens 223, the dimming unit can still be retained, and the dimming unit can increase the light emission angle. When the color display substrate 200 is used as an opposing substrate, the color display substrate 200 may also include a common electrode layer (not shown). The common electrode layer may be disposed between the second substrate 210 and the dimming layer 220 or on the side of the second substrate 210 closer to the array substrate 100.

[0051] In some embodiments, the color display substrate 200 is an opposing substrate, and the method for manufacturing the display panel includes: Before ultraviolet light color development, a frame adhesive surrounding the barrier 120 is formed on the second substrate 210, and the frame adhesive is cured while ultraviolet light color development is performed.

[0052] The frame adhesive is applied around the display area, primarily to bond and fix the array substrate 100 and the opposing substrate. It also forms a sealed edge structure, preventing moisture and oxygen from penetrating the interior, thus preventing liquid crystal failure due to environmental factors. Furthermore, it prevents internal liquid crystal from overflowing and, in conjunction with the structural design, enhances the overall mechanical strength and edge protection of the panel. The ultraviolet light color development process and the frame adhesive curing process are completed in a single ultraviolet light exposure, reducing the complexity and production cost of the display panel manufacturing process.

[0053] In some embodiments, the method of manufacturing the display panel further includes: Remove the colorimetric substrate 200; A frame adhesive is formed on the second substrate 210 to surround the barrier 120. An opposing substrate is mounted on one side of the array substrate 100. First, a photomask is used to block the cholesteric liquid crystal 300 located in the display area. Then, the frame adhesive is cured by irradiating it with ultraviolet light.

[0054] The method for manufacturing a display panel includes the step of removing the color substrate 200, which is used as a photomask for the ultraviolet color development process of the cholesteric liquid crystal 300. This design eliminates the need to manufacture a separate color substrate 200 for each display panel, thereby reducing the complexity of the manufacturing process and the production cost of the display panel.

[0055] In some embodiments, see Figure 6 As shown, a positioning boss 130 is provided on the side of the first substrate 110 near the color display substrate 200, and the positioning boss 130 is arranged around the baffle 120. A positioning groove 230 is provided on the side of the second substrate 210 near the array substrate 100. The method for manufacturing the display panel also includes: When the color display substrate 200 is mounted on one side of the array substrate 100, the positioning boss 130 is embedded into the positioning groove 230.

[0056] A positioning boss 130 is provided on one side of the color display substrate 200, and a positioning groove 230 is provided on one side of the array substrate 100. When the color display substrate 200 is installed on one side of the array substrate 100, the positioning boss 130 is embedded in the positioning groove 230, which can improve the alignment accuracy of the color display substrate 200 and the array substrate 100.

[0057] Example 2 This application also provides a display panel, which is manufactured using the display panel manufacturing method disclosed in Embodiment 1.

[0058] In this embodiment, the display panel is manufactured using a display panel manufacturing method. The array substrate 100 of the display panel includes a first substrate 110 and a barrier 120. The first substrate 110 includes a plurality of arrayed first regions 111 and a second region 112 surrounding the first regions 111. The barrier 120 surrounds the first regions 111 to form a plurality of groove structures. The color display substrate 200 includes a second substrate 210 and a dimming layer 220. The dimming layer 220 is disposed on one side of the second substrate 210. The dimming layer 220 includes a plurality of dimming units disposed corresponding to the groove structures. The dimming unit includes at least one of a convex lens 221 and a concave lens 223. The dimming layer 220 includes at least three dimming units with different refractive powers. When manufacturing the display panel: cholesteric liquid crystal 300 is dropped into the groove structure of the array substrate 100, the color display substrate 200 is mounted on one side of the array substrate 100, and ultraviolet light is used to irradiate the cholesteric liquid crystal 300 from one side of the color display substrate 200 to complete ultraviolet light color development. Because the dimming units with different refractive powers cause the ultraviolet light irradiance to be different when irradiating different cholesteric liquid crystals 300, the different cholesteric liquid crystals 300 can reflect red light, green light and blue light respectively. This is equivalent to the ultraviolet color development process being completed in one exposure with a set of photomasks, which reduces the complexity of the manufacturing process and the production cost of the display panel.

[0059] In some embodiments, see Figure 7 As shown, the cross-sectional size of the barrier 120 gradually decreases from the side closest to the first substrate 110 to the side furthest from the first substrate 110. The groove structure of the cholesteric liquid crystal 300 reflecting red light is the first groove 121, and the groove structure of the cholesteric liquid crystal 300 reflecting green light is the second groove 122. A portion of the sidewalls of the first groove 121 and the second groove 122 are provided with a reflective film 140, and the distance between the reflective film 140 and the color display substrate 200 is greater than 0. The reflectivity of the reflective film 140 on the sidewall of the first groove 121 is greater than the reflectivity of the reflective film 140 on the sidewall of the second groove 122. The sidewalls of the groove structure of the cholesteric liquid crystal 300 reflecting blue light are not provided with a reflective film 140.

[0060] The reflectivity of the reflective film 140 on the sidewall of the first groove 121 is greater than that of the reflective film 140 on the sidewall of the second groove 122. In the ultraviolet light color development process of the cholesteric liquid crystal 300, the reflective film 140 in the first groove 121 reflects more ultraviolet light to the cholesteric liquid crystal 300, and the cholesteric liquid crystal 300 in the first groove 121 reflects red light.

[0061] The distance between the reflective film 140 and the color display substrate 200 is greater than 0, meaning the reflective film 140 is submerged in the cholesteric liquid crystal 300. When the display panel displays an image, external light will not directly illuminate the reflective film 140, preventing the red and green sub-pixels from reflecting white light. Furthermore, the cholesteric liquid crystal 300 reflecting red light has a first groove 121, and the cholesteric liquid crystal 300 reflecting green light has a second groove 122. A portion of the sidewalls of the first and second grooves 121 are provided with the reflective film 140. Compared to a solution without the reflective film 140, the red and green sub-pixels have higher brightness and can be designed to be smaller.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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: An array substrate is fabricated, the array substrate including a first substrate and a barrier wall. The first substrate includes a plurality of first regions arranged in an array and a second region surrounding the first regions. Each first region corresponds to a plurality of sub-pixels located in the same row or column. The barrier wall is disposed on one side of the first substrate, and the barrier wall is arranged to form a plurality of groove structures around the first regions. A color-developing substrate is fabricated, the color-developing substrate comprising a second substrate and a dimming layer, the dimming layer being disposed on one side of the second substrate, the dimming layer comprising a plurality of dimming units corresponding to the groove structure, the dimming unit comprising at least one of a convex lens and a concave lens, and the dimming layer comprising at least three dimming units with different refractive powers. Cholesteric liquid crystal is dropped into the groove structure of the array substrate, and the color display substrate is mounted on one side of the array substrate. Ultraviolet light is used to irradiate the cholesteric liquid crystal from one side of the color display substrate to complete ultraviolet color development. The dimming unit with different refractive power makes the irradiance of ultraviolet light irradiating different cholesteric liquid crystals different. Different cholesteric liquid crystals reflect at least red light, green light and blue light respectively.

2. The method for manufacturing a display panel according to claim 1, characterized in that, The dimming unit includes a convex lens, a plano lens, and a concave lens. The cholesteric liquid crystal corresponding to the convex lens reflects red light, the cholesteric liquid crystal corresponding to the plano lens reflects green light, and the cholesteric liquid crystal corresponding to the concave lens reflects blue light.

3. The method for manufacturing a display panel according to claim 2, characterized in that, The edge of the orthogonal projection of the convex lens on the first substrate is located outside the orthogonal projection of the corresponding groove structure on the first substrate, and the orthogonal projection of the concave lens on the first substrate coincides with the orthogonal projection of the corresponding groove structure on the first substrate.

4. The method for manufacturing a display panel according to claim 1, characterized in that, The dimming unit is a convex lens or a planar lens, or the dimming unit is a concave lens or a planar lens.

5. The method for manufacturing a display panel according to any one of claims 1 to 4, characterized in that, The color display substrate is an opposing substrate, and the method for manufacturing the display panel includes: After completing the ultraviolet light color development, the dimming unit of the dimming layer is filled with the same material as the dimming layer or the dimming layer is removed.

6. The method for manufacturing a display panel according to any one of claims 1 to 4, characterized in that, The color display substrate is an opposing substrate, and the method for manufacturing the display panel includes: Before ultraviolet light color development, a frame adhesive is formed on the second substrate to surround the barrier, and the frame adhesive is cured during ultraviolet light color development.

7. The method for manufacturing a display panel according to claim 1, characterized in that, The method for manufacturing the display panel further includes: Remove the color-developing substrate; A frame adhesive is formed on the second substrate to surround the barrier. An opposing substrate is mounted on one side of the array substrate. First, the cholesteric liquid crystal located in the display area is blocked by a photomask. Then, the frame adhesive is cured by irradiating it with ultraviolet light.

8. The method for manufacturing a display panel according to claim 7, characterized in that, The first substrate has a positioning protrusion on the side near the color display substrate, the positioning protrusion surrounding the baffle wall; the second substrate has a positioning groove on the side near the array substrate; and the method for manufacturing the display panel further includes: When the color display substrate is mounted to one side of the array substrate, the positioning boss is embedded into the positioning groove.

9. A display panel, characterized in that, The display panel is manufactured using the method described in any one of claims 1 to 8.

10. The display panel according to claim 9, characterized in that, From the side closest to the first substrate to the side furthest from the first substrate, the cross-sectional size of the barrier gradually decreases. The groove structure of the cholesteric liquid crystal that reflects red light is a first groove, and the groove structure of the cholesteric liquid crystal that reflects green light is a second groove. A portion of the sidewalls of the first groove and the second groove are provided with a reflective film. The distance between the reflective film and the color display substrate is greater than 0. The reflectivity of the reflective film on the sidewall of the first groove is greater than the reflectivity of the reflective film on the sidewall of the second groove.

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