A fast-response monochrome reflective liquid crystal display and its manufacturing method

By using cholesteric liquid crystal and transparent microstructure array design, the problems of high power consumption, limited viewing angle and complex manufacturing of reflective liquid crystal displays were solved, realizing a low-power, wide-viewing-angle and fast-response monochrome reflective liquid crystal display.

CN119356001BActive Publication Date: 2025-10-31SHENZHEN GOETHE XINCHUANG TECH CO LTD
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Patent Information

Application Number
CN202410914781.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-09
Publication Date
2025-10-31
Estimated Expiration
2044-07-09

AI Technical Summary

Technical Problem

Existing reflective LCD displays suffer from high power consumption, limited viewing angle, low contrast, and complex manufacturing processes, especially when used outdoors where they exhibit severe glare and poor color dispersion.

Method used

Using cholesteric liquid crystal as the display material, combined with a transparent microstructure array and a vertical orientation agent, the polarizer and directional friction process are eliminated. The transparent microstructure array is used to create an uneven surface to broaden the reflection spectrum and viewing angle.

Benefits of technology

It achieves a low-power, ultra-thin, wide-viewing-angle monochrome reflective LCD display with fast response time and no color deviation, and low cost.

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Abstract

This application provides a fast-response monochrome reflective liquid crystal display and its fabrication method. A transparent microstructure array is fabricated on a first conductive layer of a first transparent conductive substrate; the transparent microstructure array consists of multiple transparent microstructure units arranged in an array to form an uneven surface; a vertical alignment agent is coated and cured on the convex surface of the transparent microstructure units to form a first alignment layer; a liquid crystal cavity of the liquid crystal layer is fabricated using a frame and multiple spacers, and a pre-reserved injection port is provided; a vertical alignment agent is coated and cured on a second conductive layer of a second transparent conductive substrate to form a second alignment layer; the first and second transparent conductive substrates are molded together; cholesteric liquid crystal is injected into each display area through the pre-reserved injection port; an opaque black ink layer is coated on a primer layer; and an integrated circuit (IC) and a fine-film polymer screen (FPC) are pressed together. This fast-response monochrome reflective liquid crystal display has advantages such as broadened reflectance spectrum, wider viewing angle, low cost, low power consumption, and ultra-thin design.
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Description

Technical Field

[0001] This application belongs to the field of liquid crystal display technology, and more specifically, relates to a fast-response black-and-white reflective liquid crystal display and its manufacturing method. Background Technology

[0002] Thin-film transistor liquid crystal displays (TFT-LCDs) include transmissive and reflective liquid crystal displays. Transmissive LCDs were developed first, featuring a backlight built into the back of the display and display electrodes made of transparent conductive materials such as ITO (Indium Tin Oxides). However, the backlight used in transmissive LCDs is one of their most power-consuming components, requiring batteries for power, resulting in high power consumption. Furthermore, transmissive LCDs exhibit glare when used outdoors, especially in sunlight, leading to reduced contrast and unclear image display. Reflective LCDs were thus developed to address this issue. Their light source utilizes external natural or artificial light, requiring a reflective layer to reflect the incoming light. Traditionally, display electrodes are used as the reflective layer, made of conductive materials that reflect light, typically aluminum. The surface of the display electrodes is textured to increase light reflection.

[0003] In liquid crystal displays (LCDs), traditional twisted nematic (TN) LCDs are the most widely used, and most have a single-area structure. However, currently common reflective and transmissive LCDs are mostly RTN (reflective twisted nematic) LCDs and MTN-LCDs (mixed mode TN-LCDs), requiring cross-polarizing films and compensation films on the outside of the LCD screen. This results in inherent viewing angle defects in transmissive mode, approximately 40 degrees horizontally and 30 degrees vertically. Furthermore, their contrast ratio is very low, only about 15:1 to 50:1, and their color dispersion is poor, making them difficult to apply in high-quality products. In addition, the directional friction technology used in the manufacturing process presents problems related to electrostatic discharge and dust contamination. Therefore, designing an LCD that can simply and efficiently achieve power saving and anti-glare requirements has become a pressing issue for the industry. Summary of the Invention

[0004] The purpose of this application is to provide a fast-response monochrome reflective liquid crystal display and its manufacturing method, so as to solve the above-mentioned technical problems existing in the prior art.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a fast-response monochrome reflective liquid crystal display, comprising:

[0006] The first transparent conductive substrate includes a first transparent substrate and a first conductive layer;

[0007] The second transparent conductive substrate includes a second transparent substrate and a second conductive layer; the first transparent substrate and the second transparent substrate are disposed at a distance from each other, the first conductive layer is disposed on the side of the first transparent substrate facing the second transparent substrate, and the second conductive layer is disposed opposite to the first conductive layer;

[0008] A liquid crystal layer is located between a first transparent conductive substrate and a second transparent conductive substrate; the liquid crystal cavity of the liquid crystal layer is divided into multiple display areas, and each display area is filled with cholesteric liquid crystal.

[0009] A transparent microstructure array is disposed on the first conductive layer and includes multiple transparent microstructure units arranged in an array. Each display area is provided with a transparent microstructure unit, and the transparent microstructure unit is arranged in a transparent convex shape protruding towards the second conductive layer.

[0010] The alignment layer includes a first alignment layer and a second alignment layer having a vertical orientation agent. The first alignment layer is disposed on the convex surface of the transparent microstructure unit facing the second conductive layer, and the second alignment layer is sandwiched between the liquid crystal layer and the second conductive layer.

[0011] A primer layer is disposed on the side of the first transparent substrate opposite to the second transparent substrate, and an opaque black ink layer is disposed on the primer layer.

[0012] Optionally, the fast-response monochrome reflective liquid crystal display also includes a frame and spacers, with the first conductive layer and the second alignment layer respectively supported and connected at both ends of the frame; the frame encloses to form a liquid crystal cavity.

[0013] The two ends of the spacer pillars are respectively supported and connected to the first conductive layer and the second alignment layer. Multiple spacer pillars are located in the liquid crystal cavity to divide the liquid crystal cavity into multiple mutually isolated display areas.

[0014] Optionally, the spacer is made of positive or negative polyacrylic acid ester, and the cross-sectional shape of the spacer is one of square, circular, or rectangular.

[0015] Optionally, the transparent microstructure unit is made of one of polyacrylate, epoxy acrylate resin, or polyimide acrylate, and is manufactured by one of transfer printing, nanoimprinting, photolithography, or inkjet printing; the cross-sectional shape of the transparent microstructure unit is one of circular, square, or hexagonal.

[0016] Optionally, the first conductive layer is made of indium tin oxide or nanowires, and the spacing between the first conductive layer and the second conductive layer is 3µm to 6µm.

[0017] This application also proposes a method for fabricating a fast-response monochrome reflective liquid crystal display (LCD), used to fabricate the aforementioned fast-response monochrome reflective LCD; the method for fabricating the fast-response monochrome reflective LCD includes the following steps:

[0018] A transparent microstructure array is fabricated on the first conductive layer of a first transparent conductive substrate; the transparent microstructure array consists of multiple transparent microstructure units arranged in an array to form an uneven surface.

[0019] A vertical orientation agent is coated and cured on the convex surface of a transparent microstructure unit to form a first alignment layer;

[0020] The liquid crystal cavity of the liquid crystal layer is fabricated using a frame and multiple spacers, and a crystal filling port is reserved.

[0021] A vertical orientation agent is coated and cured on the second conductive layer of the second transparent conductive substrate to form a second alignment layer;

[0022] A first transparent conductive substrate having a transparent microstructure array and a first alignment layer and a second transparent conductive substrate having a second alignment layer are molded together.

[0023] Cholesteric liquid crystal is injected into each display area through a pre-reserved filling port. An opaque black ink layer is applied to the primer layer, and the IC and FPC are pressed together.

[0024] Optionally, the step of fabricating a transparent microstructure array on the first conductive layer of the first transparent conductive substrate further includes the following steps:

[0025] According to the preset dot matrix and pixel specifications, pixels are etched on the first conductive layer and the second conductive layer to form a pattern or dot matrix consistent with the display area.

[0026] Optionally, the step of fabricating a transparent microstructure array on the first conductive layer of the first transparent conductive substrate includes the following sub-steps:

[0027] Epoxy acrylate material is spin-coated onto the first conductive layer;

[0028] Using a transfer plate with microstructures, a preform of the desired transparent microstructure array is pressed out;

[0029] Ultraviolet light curing is used to solidify the preform of the transparent microstructure array into a transparent microstructure array.

[0030] Optionally, the step of coating and curing a vertical orientation agent on the convex surface of the transparent microstructure unit to form the first alignment layer includes the following sub-steps:

[0031] A VA-type vertical alignment agent is spin-coated onto the convex surface of a transparent microstructure unit to form a preform for the first alignment layer;

[0032] The preform of the first alignment layer is heated and cured without friction and oriented to form the first alignment layer;

[0033] The step of coating and curing a vertical orientation agent on the second conductive layer of the second transparent conductive substrate to form a second alignment layer includes the following sub-steps:

[0034] A VA-type vertical alignment agent is spin-coated onto the second conductive layer to form a preform for the second conductive layer;

[0035] The preform of the second alignment layer is heated and cured without friction orientation to form the second alignment layer.

[0036] Optionally, the following sub-steps are included before the step of molding the first transparent conductive substrate having a transparent microstructure array and a first alignment layer and the second transparent conductive substrate having a second alignment layer;

[0037] A negative photoresist material is spin-coated onto the surface of the first conductive layer;

[0038] The first conductive layer is exposed and developed. By adjusting the height of the photoresist material, the spacing between the first alignment layer and the second conductive layer is ensured to be between 3µm and 5µm.

[0039] The beneficial effects of the fast-response monochrome reflective liquid crystal display and its fabrication method provided in this application are as follows: First, since this fast-response monochrome reflective liquid crystal display uses cholesteric liquid crystal with its own color as the display material, it eliminates the need for components such as polarizers, and also eliminates the need for the orientation friction process of the alignment layer, making the device structure of the liquid crystal display simpler, lower in cost, and ultra-thin. Second, this fast-response monochrome reflective liquid crystal display has a viewing angle range of over 160 degrees, and the sum of the rise and fall response times in grayscale display is less than 30 milliseconds, with no color shift. Third, by using a transparent microstructure array in conjunction with a vertically oriented alignment agent on the alignment layer, the reflectance spectrum of the cholesteric liquid crystal can be effectively broadened, thereby achieving a monochrome effect. In summary, this fast-response monochrome reflective liquid crystal display, by directly using cholesteric liquid crystal as the display material, simultaneously using a transparent microstructure array composed of multiple transparent microstructure units to create an uneven surface, and then utilizing the anchoring effect of the vertically oriented alignment agent in the alignment layer, has the advantages of broadening the reflectance spectrum, widening the viewing angle, low cost, low power consumption, and ultra-thinness. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A cross-sectional structural diagram of a single-layer liquid crystal cell architecture provided in an embodiment of this application;

[0042] Figure 2 A flowchart illustrating a method for fabricating a fast-response monochrome reflective liquid crystal display provided in an embodiment of this application.

[0043] Explanation of icon numbers:

[0044] Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this application are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0048] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" 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.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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.

[0051] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0052] This application provides a fast-response monochrome reflective liquid crystal display.

[0053] Please see Figure 1 In one embodiment, the fast-response monochrome reflective liquid crystal display includes a first transparent conductive substrate, a second transparent conductive substrate, a liquid crystal layer 200, a transparent microstructure array, an alignment layer, and a primer layer 500. Specifically, the first transparent conductive substrate includes a first transparent substrate 110 and a first conductive layer 120; the second transparent conductive substrate includes a second transparent substrate 130 and a second conductive layer 420; the first transparent substrate 110 and the second transparent substrate 130 are disposed at a distance from each other, the first conductive layer 120 is disposed on the side of the first transparent substrate 110 facing the second transparent substrate 130, and the second conductive layer 420 is disposed opposite to the first conductive layer 120. The liquid crystal layer 200 is located between the first transparent conductive substrate and the second transparent conductive substrate; the liquid crystal cavity of the liquid crystal layer 200 is divided into a plurality of display areas 210, and each display area 210 is filled with cholesteric liquid crystal. A transparent microstructure array is disposed on the first conductive layer 120, comprising multiple arrayed transparent microstructure units 310. Each display area 210 contains one transparent microstructure unit 310, which is arranged in a transparent convex shape protruding towards the second conductive layer 420. The alignment layer includes a first alignment layer 410 and a second alignment layer 140 with a vertical alignment agent. The first alignment layer 410 is disposed on the convex surface of the transparent microstructure unit 310 facing the second conductive layer 420, and the second alignment layer 140 is sandwiched between the liquid crystal layer 200 and the second conductive layer 420. A primer layer 500 is disposed on the side of the first transparent substrate 110 facing away from the second transparent substrate 130, and an opaque black ink layer is disposed on the primer layer 500.

[0054] It should be noted that the display material used in this application is cholesteric liquid crystal, a chiral nematic liquid crystal with bistable properties. Under normal conditions, it is colorless and nearly transparent. Since the primer layer 500 is opaque black, a black background is presented. Under sufficient electric field force, the liquid crystal molecules tilt along the surface of the microstructure, entering a display state. That is, when electricity is applied, the liquid crystal exhibits a reflective state, and under the anchoring effect of the transparent microstructure unit 310, the reflection spectrum broadens, thus presenting white and creating contrast.

[0055] Based on this design, in this embodiment, the fast-response monochrome reflective liquid crystal display has the following advantages: First, since this fast-response monochrome reflective liquid crystal display uses cholesteric liquid crystal with its own color as the display material, it eliminates the need for components such as polarizers, and also eliminates the need for the orientation friction process of the alignment layer, making the device structure of the liquid crystal display simpler, lower in cost, and ultra-thin; Second, this fast-response monochrome reflective liquid crystal display has a viewing angle range of over 160 degrees, and the sum of the rise and fall response times in grayscale display is less than 30 milliseconds, with no color shift; Third, by using a transparent microstructure array in conjunction with a vertical orientation agent on the alignment layer, the reflection spectrum of the cholesteric liquid crystal can be effectively broadened, thereby achieving a monochrome effect. In summary, this fast-response monochrome reflective liquid crystal display, by directly using cholesteric liquid crystal as the display material, simultaneously using a transparent microstructure array composed of multiple transparent microstructure units 310 to create an uneven surface, and then utilizing the anchoring effect of the vertical orientation agent in the alignment layer, has the advantages of broadening the reflection spectrum, widening the viewing angle, low cost, low power consumption, and ultra-thinness.

[0056] Please see Figure 1 The fast-response monochrome reflective liquid crystal display also includes a bezel 220 and spacers 230. The bezel 220 has a first conductive layer 120 and a second alignment layer 140 connected to its two ends, respectively; the bezel 220 encloses a liquid crystal cavity. The spacers 230 have a first conductive layer 120 and a second alignment layer 140 connected to their two ends, respectively. Multiple spacers 230 are located within the liquid crystal cavity to divide it into multiple isolated display areas 210. Specifically, in this embodiment, the spacers 230 are preferably uniformly distributed, with a density preferably ranging from 60 to 220 per square centimeter. They are surrounded by chiral nematic liquid crystal, specifically cholesteric liquid crystal, with a thickness preferably ranging from 4µm. Furthermore, the first alignment layer 410 and the second alignment layer 140 use vertically aligned vertical alignment agents, thus eliminating friction. The thickness of the first transparent substrate 110 is preferably 0.7mm.

[0057] It should be noted that the spacer 230 is preferably made of positive or negative polypropylene ester, and the cross-sectional shape of the spacer 230 is one of square, circular or rectangular, with a diameter preferably from 10µm to 20µm, and the spacing between two adjacent spacers 230 is from 200µm to 600µm.

[0058] It should be noted that the transparent microstructure unit 310 is preferably made of one of polyacrylate, epoxy acrylate resin, or polyimide acrylate, and is manufactured using one of the following methods: transfer printing, nanoimprinting, photolithography, or inkjet printing. The cross-sectional shape of the transparent microstructure unit 310 is one of circular, square, or hexagonal. Figure 1 As shown, in this embodiment, the cross-sectional shape of the transparent microstructure unit 310 is circular, and its thickness is preferably 0.1µm to 1µm.

[0059] Furthermore, the first conductive layer 120 is made of indium tin oxide or nanowires, and the spacing between the first conductive layer 120 and the second conductive layer 420 is preferably 3µm to 6µm.

[0060] This application also proposes a method for fabricating a fast-response monochrome reflective liquid crystal display, used to fabricate the fast-response monochrome reflective liquid crystal display as described above. Please refer to... Figure 2 In this embodiment, the method for manufacturing a fast-response monochrome reflective liquid crystal display includes the following steps:

[0061] S1. A transparent microstructure array is prepared on the first conductive layer 120 of the first transparent conductive substrate; the transparent microstructure array is formed by multiple transparent microstructure units 310 arranged in an array to form an uneven surface.

[0062] S2. A vertical orientation agent is coated and cured on the convex surface of the transparent microstructure unit 310 to form a first alignment layer 410.

[0063] S3. A liquid crystal cavity for liquid crystal layer 200 is formed using a frame 220 and multiple spacers 230, and a crystal filling port is reserved.

[0064] Specifically, there can be one or more pre-reserved crystal filling ports on the 220 glue frame, depending on the specific needs.

[0065] S4. A vertical orientation agent is coated and cured on the second conductive layer 420 of the second transparent conductive substrate to form a second alignment layer 140.

[0066] S5. The first transparent conductive substrate having a transparent microstructure array and a first alignment layer 410 and the second transparent conductive substrate having a second alignment layer 140 are molded together.

[0067] Specifically, the first transparent conductive substrate and the second transparent conductive substrate are precisely bonded together to form a liquid crystal cell.

[0068] S6. Cholesteric liquid crystal is injected into each display area 210 through the reserved filling port, an opaque black ink layer is coated on the primer layer 500, and the IC and FPC are pressed together.

[0069] Specifically, heating is required when filling the liquid crystal into the liquid crystal cell through the filling port. Black ink is printed on the bottom of the primer layer 500, and then ICs (Integrated Circuits) and FPCs (Flexible Printed Circuits) are attached to create a fast-response monochrome reflective liquid crystal display.

[0070] The fast-response black-and-white reflective liquid crystal display fabricated by this fast-response black-and-white reflective liquid crystal display directly uses cholesteric liquid crystal as the display material. At the same time, it uses a transparent microstructure array composed of multiple transparent microstructure units 310 to create an uneven surface, and then uses the anchoring effect of the vertical orientation agent of the alignment layer. Thus, it has the advantages of broadening the reflection spectrum, widening the viewing angle, low cost, low power consumption and ultra-thinness.

[0071] Furthermore, in this embodiment, the step of fabricating a transparent microstructure array on the first conductive layer 120 of the first transparent conductive substrate further includes the following steps:

[0072] According to the preset dot matrix and pixel specifications, pixels are etched on the first conductive layer 120 and the second conductive layer 420 to form a pattern or dot matrix consistent with the display area 210.

[0073] Specifically, the dot matrix size and number of pixels of the display device can be determined according to the customer's needs for the displayed content, that is, a preset dot matrix and pixel specification can be formed, and then the pixels are etched to form a pattern or dot matrix. Here, the first conductive layer 120 and the second conductive layer 420 are made of ITO conductive film glass material.

[0074] Furthermore, in this embodiment, the step of fabricating a transparent microstructure array on the first conductive layer 120 of the first transparent conductive substrate includes the following sub-steps:

[0075] An epoxy acrylate material is spin-coated onto the first conductive layer 120;

[0076] Using a transfer plate with microstructures, a preform of the desired transparent microstructure array is pressed out;

[0077] Ultraviolet light curing is used to solidify the preform of the transparent microstructure array into a transparent microstructure array.

[0078] Specifically, the thickness of the transfer plate is preferably 0.3±0.02µm, the ultraviolet light irradiation energy is preferably 3000mJ, and the curing energy of the transparent microstructure array is 2000~10000mJ.

[0079] Furthermore, in this embodiment, the step of coating and curing a vertical orientation agent on the convex surface of the transparent microstructure unit 310 to form the first alignment layer 410 includes the following sub-steps:

[0080] A VA-type vertical alignment agent is spin-coated onto the convex surface of the transparent microstructure unit 310 to form a preform of the first alignment layer 410;

[0081] The preform of the first alignment layer 410 is heated and cured without friction orientation to form the first alignment layer 410;

[0082] The step of coating and curing a vertical orientation agent on the second conductive layer 420 of the second transparent conductive substrate to form the second alignment layer 140 includes the following sub-steps:

[0083] A VA-type vertical alignment agent is spin-coated onto the second conductive layer 420 to form a preform of the second alignment layer 140;

[0084] The preform of the second alignment layer 140 is heated and cured without friction orientation to form the second alignment layer 140.

[0085] Specifically, the spin coating thickness of the vertical orientation agent is preferably 400 Å, and the vertical orientation agent can be, but is not limited to, one of the VA type vertical orientation agents such as DL-4010, DL-4018, and DL-4022.

[0086] Furthermore, in this embodiment, the following sub-steps are included before the step of molding the first transparent conductive substrate having a transparent microstructure array and a first alignment layer 410 and the second transparent conductive substrate having a second alignment layer 140;

[0087] A negative photoresist material is spin-coated onto the surface of the first conductive layer 120;

[0088] The first conductive layer 120 is exposed and developed. By adjusting the height of the photoresist material, the spacing between the first alignment layer 410 and the second conductive layer 420 is ensured to be between 3µm and 5µm.

[0089] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fast-response monochrome reflective liquid crystal display, characterized in that, include: The first transparent conductive substrate includes a first transparent substrate and a first conductive layer; The second transparent conductive substrate includes a second transparent substrate and a second conductive layer; The first transparent substrate and the second transparent substrate are disposed at a distance from each other, the first conductive layer is disposed on the side of the first transparent substrate facing the second transparent substrate, and the second conductive layer is disposed opposite to the first conductive layer; A liquid crystal layer is located between the first transparent conductive substrate and the second transparent conductive substrate; the liquid crystal cavity of the liquid crystal layer is divided into multiple display areas, and each display area is filled with cholesteric liquid crystal. A transparent microstructure array is disposed on the first conductive layer and includes multiple transparent microstructure units arranged in an array. Each display area is provided with one of the transparent microstructure units, and the transparent microstructure units are arranged in a transparent convex shape protruding towards the second conductive layer. The alignment layer includes a first alignment layer and a second alignment layer having a vertical alignment agent. The first alignment layer is disposed on the convex surface of the transparent microstructure unit facing the second conductive layer, and the second alignment layer is sandwiched between the liquid crystal layer and the second conductive layer. A primer layer is disposed on the side of the first transparent substrate opposite to the second transparent substrate, and an opaque black ink layer is disposed on the primer layer.

2. The fast-response monochrome reflective liquid crystal display as described in claim 1, characterized in that, The fast-response monochrome reflective liquid crystal display further includes a frame and spacers, with the first conductive layer and the second alignment layer respectively supported and connected at both ends of the frame; the frame encloses to form the liquid crystal cavity. The two ends of the spacer post are respectively supported and connected to the first conductive layer and the second alignment layer, and the multiple spacer posts are located in the liquid crystal cavity to divide the liquid crystal cavity into multiple mutually isolated display areas.

3. The fast-response monochrome reflective liquid crystal display as described in claim 2, characterized in that, The spacer is made of positive or negative polyacrylic acid ester, and the cross-sectional shape of the spacer is one of square, circular, or rectangular.

4. The fast-response monochrome reflective liquid crystal display as described in claim 1, characterized in that, The transparent microstructure unit is made of one of polyacrylate, epoxy acrylate resin, or polyimide acrylate, and is manufactured by one of the following methods: transfer printing, nanoimprinting, photolithography, or inkjet printing; the cross-sectional shape of the transparent microstructure unit is one of the following: circular, square, or hexagonal.

5. The fast-response monochrome reflective liquid crystal display as described in claim 1, characterized in that, The first conductive layer is made of indium tin oxide or nanowires, and the spacing between the first conductive layer and the second conductive layer is 3µm to 6µm.

6. A method for manufacturing a fast-response monochrome reflective liquid crystal display, characterized in that, Used to manufacture a fast-response monochrome reflective liquid crystal display as described in any one of claims 1 to 5; The method for manufacturing a fast-response monochrome reflective liquid crystal display includes the following steps: The transparent microstructure array is fabricated on the first conductive layer of the first transparent conductive substrate; the transparent microstructure array is composed of a plurality of transparent microstructure units arranged in an array to form an uneven surface; A vertical orientation agent is coated and cured on the convex surface of the transparent microstructure unit to form the first alignment layer; The liquid crystal cavity of the liquid crystal layer is formed using a frame and multiple spacers, and a crystal filling port is reserved. A vertical orientation agent is coated and cured on the second conductive layer of the second transparent conductive substrate to form the second alignment layer; The first transparent conductive substrate having the transparent microstructure array and the first alignment layer and the second transparent conductive substrate having the second alignment layer are molded together; The cholesteric liquid crystal is injected into each of the display areas through the reserved filling port, an opaque black ink layer is applied on the primer layer, and the IC and FPC are pressed together.

7. The method for manufacturing a fast-response monochrome reflective liquid crystal display as described in claim 6, characterized in that, The step of fabricating the transparent microstructure array on the first conductive layer of the first transparent conductive substrate further includes the following steps: According to the preset dot matrix and pixel specifications, pixels are etched on the first conductive layer and the second conductive layer to form a pattern or dot matrix consistent with the display area.

8. The method for manufacturing a fast-response monochrome reflective liquid crystal display as described in claim 6, characterized in that, The step of fabricating the transparent microstructure array on the first conductive layer of the first transparent conductive substrate includes the following sub-steps: Spin-coat an epoxy acrylate material onto the first conductive layer; Using a transfer plate with microstructures, a preform of the desired transparent microstructure array is pressed out; The preform of the transparent microstructure array is cured by ultraviolet light to form the transparent microstructure array.

9. The method for manufacturing a fast-response monochrome reflective liquid crystal display as described in claim 6, characterized in that, The step of coating and curing a vertical orientation agent on the convex surface of the transparent microstructure unit to form the first alignment layer includes the following sub-steps: A VA-type vertical alignment agent is spin-coated onto the convex surface of the transparent microstructure unit to form a preform of the first alignment layer; The preform of the first alignment layer is heated and cured without friction orientation to form the first alignment layer; The step of coating and curing a vertical orientation agent on the second conductive layer of the second transparent conductive substrate to form the second alignment layer includes the following sub-steps: A VA-type vertical alignment agent is spin-coated onto the second conductive layer to form a preform of the second alignment layer; The preform of the second alignment layer is heated and cured without friction orientation to form the second alignment layer.

10. The method for manufacturing a fast-response monochrome reflective liquid crystal display as described in claim 6, characterized in that, The following sub-steps are included before the step of molding the first transparent conductive substrate having the transparent microstructure array and the first alignment layer and the second transparent conductive substrate having the second alignment layer; A negative photoresist material is spin-coated onto the surface of the first conductive layer; The first conductive layer is exposed and developed, and the height of the photoresist material is adjusted to ensure that the spacing between the first alignment layer and the second conductive layer is between 3µm and 5µm.

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