An electronic paper display structure and electronic paper

Abstract

This invention discloses an electronic paper display structure and electronic paper. The electronic paper display structure includes a lower structural layer, which comprises a color block stacking layer, a lower substrate layer, a thin-film transistor layer, and a color filter layer. The color filter layer includes multiple spaced sub-pixel regions. Each color block stacking layer corresponds to one sub-pixel region, and the color block stacking layer corresponds to the thin-film transistor switching of the thin-film transistor layer. The color block stacking layer is located above the sub-pixel regions or the thin-film transistor layer to achieve the stacking of at least two different color layers. This invention achieves optical separation and masking functions similar to those of a traditional black matrix by placing the color block stacking layer on the sub-pixel regions or the thin-film transistor layer to achieve the stacking of at least two different color layers. Simultaneously, the overlapping design achieves effective isolation between sub-pixels, reducing the fine pattern requirements of a traditional black matrix in manufacturing, thereby simplifying the process and reducing production costs.

Description

Technical Field

[0001] This invention relates to the field of electronic display technology, and in particular to an electronic paper display structure and electronic paper. Background Technology

[0002] Currently, full-color display technology is gradually becoming a research and application hotspot in the field of electronic paper. Traditional electronic paper displays typically employ a color filter (CF) structure, with its core design based on a COA (CF on Array) architecture. This structure generally includes a lower substrate layer, a thin-film transistor (TFT) structure layer, a color filter layer (CF), a black matrix layer (BM), a spacer layer (SOC, Spacer on CF), a liquid crystal layer (LC), an alignment layer, a transparent conductive layer, and an upper substrate layer. The color filter layer achieves full-color display through the arrangement of red (R), green (G), and blue (B) sub-pixels, while the black matrix layer (BM) is placed between adjacent sub-pixels to block light leakage and color confusion, thereby improving display contrast and enhancing visual effects.

[0003] However, the traditional manufacturing process for black matrix layers has significant drawbacks. A black matrix requires high-precision patterning at the micrometer level, which places extremely high demands on manufacturing processes such as photolithography and etching. On the one hand, the fine processing of the BM layer requires complex equipment and strict process control, leading to a significant increase in production costs. On the other hand, micrometer-level process errors can reduce the masking effect of the BM layer, thereby causing optical crosstalk between adjacent sub-pixels and affecting display quality. Furthermore, the introduction of the BM layer adds multiple process steps, further increasing the overall process complexity. Summary of the Invention

[0004] The purpose of this invention is to provide an electronic paper display structure and electronic paper, aiming to solve the problems of high production cost and complex manufacturing process of traditional electronic paper displays.

[0005] This invention provides an electronic paper display structure, including a lower structural layer, which comprises multiple color block stacked layers and a lower substrate layer, a thin film transistor layer, and a color filter layer arranged sequentially. The color filter layer includes multiple spaced sub-pixel regions, each color block stacking layer corresponds to one of the sub-pixel regions, the color block stacking layer corresponds to the thin film transistor switch of the thin film transistor layer, the color block stacking layer is located above the sub-pixel region or the thin film transistor layer to achieve the stacking of at least two different color layers, and the color block stacking layer includes at least one of red blocks, green blocks and blue blocks.

[0006] Furthermore, the color block stacking layer includes one of red blocks, green blocks, and blue blocks, the color block stacking layer is disposed on the sub-pixel region, and the color of the color block stacking layer is different from the color of the sub-pixel region.

[0007] Furthermore, the color block stack layer includes two of red blocks, green blocks, and blue blocks, and two of the red blocks, green blocks, and blue blocks are stacked together. The color block stack layer is disposed on the thin film transistor layer.

[0008] Furthermore, the color block stacking layer includes two of red blocks, green blocks, and blue blocks, with two of the red blocks, green blocks, and blue blocks stacked together. The color block stacking layer is disposed on the sub-pixel region, and at least one color in the color block stacking layer is different from the color of the sub-pixel region.

[0009] Furthermore, the color block stack layer includes red blocks, green blocks, and blue blocks, which are stacked together, and the color block stack layer is disposed on the thin film transistor layer.

[0010] Furthermore, the end of the color block stack layer away from the thin film transistor layer protrudes from the color filter layer.

[0011] Furthermore, the lower structural layer also includes a planarization layer and a pixel electrode layer, wherein the planarization layer is disposed on the color filter layer and the color block stack layer, and the pixel electrode layer is disposed on the planarization layer.

[0012] Furthermore, the pixel electrode layer is electrically connected to the thin-film transistor layer.

[0013] Furthermore, it also includes: a capsule layer, a transparent conductive layer, and an upper substrate layer, wherein the lower structural layer, the capsule layer, the transparent conductive layer, and the upper substrate layer are arranged sequentially from bottom to top.

[0014] This invention also provides an electronic paper, including the electronic paper display structure described above.

[0015] This invention discloses an electronic paper display structure and electronic paper. The electronic paper display structure includes a lower structural layer, which comprises multiple color block stacked layers and a lower substrate layer, a thin-film transistor layer, and a color filter layer arranged sequentially. The color filter layer includes multiple spaced sub-pixel regions, each color block stacked layer corresponding to one of the sub-pixel regions. The color block stacked layers are configured as thin-film transistor switches corresponding to the thin-film transistor layers. The color block stacked layers are located above the sub-pixel regions or the thin-film transistor layers to achieve the stacking of at least two different color layers. The color block stacked layers include at least one of red, green, and blue blocks. This invention achieves optical separation and masking functions similar to a traditional black matrix by placing color block stacked layers on the sub-pixel regions or the thin-film transistor layer to achieve the stacking of at least two different color layers. This effectively isolates sub-pixels, prevents color crosstalk, and maintains good display performance. Simultaneously, the overlapping design achieves effective isolation between sub-pixels, reducing the fine pattern requirements of a traditional black matrix in manufacturing, thereby simplifying the process and reducing material and equipment requirements, ultimately lowering production costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the electronic paper display structure; Figure 2 This is a first-view structural diagram of the lower structural layer. Figure 3 This is a schematic diagram of the lower structural layer where the color block stacking layer consists of three stacked color blocks; Figure 4 This is a schematic diagram of the lower structural layer where the color block stacking layer consists of two stacked color blocks; Figure 5 This is a structural diagram of the lower structural layer from a second perspective. Explanation of the labels in the diagram: 1. Substrate layer; 2. Thin film transistor layer; 3. Color filter layer; 4. Color block stacking layer; 5. Planarization layer; 6. Pixel electrode layer; 7. Sub-pixel region; 8. Thin film transistor switch. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] It should be understood that, when used in this specification and the appended claims, the terms “comprising” and “including” indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0020] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0021] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0022] Please see Figure 1 and Figure 2 This embodiment provides an electronic paper display structure, including an upper structural layer, a capsule layer, and a lower structural layer. The upper structural layer includes a transparent conductive layer and an upper substrate layer, and the lower structural layer includes a lower substrate layer 1, a thin film transistor layer 2 (TFT layer), a color filter layer 3, a color block stacking layer 4, a planarization layer 5, and a pixel electrode layer 6.

[0023] For details, please refer to Figures 2-5 The electronic paper display structure provided in this embodiment includes a lower structure layer, which includes multiple color block stacked layers 4 and a lower substrate layer 1, a thin film transistor layer 2 (i.e., TFT layer) and a color filter layer 3 arranged sequentially. The color filter layer 3 includes multiple spaced sub-pixel regions 7. Each color block stacking layer 4 corresponds to one sub-pixel region 7. The color block stacking layer 4 corresponds to the thin film transistor switch 8 of the thin film transistor layer 2. The color block stacking layer 4 is located above the sub-pixel region 7 or the thin film transistor layer 2 to achieve the stacking of at least two different color layers. The color block stacking layer 4 includes at least one of red, green and blue blocks.

[0024] The color filter layer 3 is divided into a red sub-pixel region R, a green sub-pixel region G, and a blue sub-pixel region B, or a red sub-pixel region R, a green sub-pixel region G, a blue sub-pixel region B, and a white sub-pixel region W. The color filter layer 3 is used to provide color for display. The color block stacking layer 4 is made of red blocks R, green blocks G, or blue blocks B. The red blocks R, green blocks G, or blue blocks B are stacked to form a black matrix. The function of the color block stacking layer 4 is to block light and avoid crosstalk between adjacent colors. In this embodiment, by placing the color block stacking layer 4 on the sub-pixel region 7 or the thin film transistor layer 2 to achieve the stacking of at least two different color layers, a separation and blocking function similar to that of a traditional black matrix is ​​achieved optically. This effectively isolates sub-pixels, prevents color crosstalk, and maintains good display effects. At the same time, the overlapping design achieves effective isolation between sub-pixels, reduces the fine pattern requirements of the traditional black matrix in manufacturing, thereby simplifying the process flow and reducing the material and equipment requirements in the production process, thus reducing production costs.

[0025] The stacked color blocks each have their own specific refractive index. When light passes through sub-pixel region 7 and attempts to propagate to adjacent sub-pixels, it encounters these stacked color block interfaces. Due to the refractive index differences between the different color materials within the stacked layer, additional light reflection, scattering, and absorption occur at these interfaces, resulting in light energy loss and reducing the light transmittance of the color block stacked layer 4 region. This physically achieves optical isolation and prevents color crosstalk.

[0026] In this embodiment, the red block can be made of the same material as the red sub-pixel region R, the green block can be made of the same material as the green sub-pixel region G, and the blue block can be made of the same material as the blue sub-pixel region B.

[0027] In some embodiments, the color block stacking layer 4 includes one of red blocks, green blocks, and blue blocks, and the color block stacking layer 4 is disposed on the sub-pixel region 7, and the color of the color block stacking layer 4 is different from the color of the sub-pixel region 7.

[0028] For example, a green block is placed above a red sub-pixel area; or a blue block is placed above a green sub-pixel area; or a red block is placed above a blue sub-pixel area; or a red block is placed above a green sub-pixel area; or a green block is placed above a blue sub-pixel area.

[0029] This design utilizes stacked color blocks of different colors on sub-pixel areas. The optical properties of the superimposed color blocks and sub-pixel areas achieve light absorption and reflection, thus forming an effective masking area between adjacent sub-pixel regions. This structure prevents light leakage and color crosstalk between sub-pixels, replacing the function of a traditional black matrix. Simultaneously, this solution reduces reliance on precision patterning processes, helping to simplify the manufacturing process and lower production costs.

[0030] In some embodiments, the color block stacking layer 4 includes two of red blocks, green blocks, and blue blocks, and two of the red blocks, green blocks, and blue blocks are stacked together. The color block stacking layer 4 is disposed on the thin film transistor layer 2.

[0031] For example, the color block stacking layer 4 includes: red blocks and green blocks, with red blocks stacked on top of green blocks; or, green blocks stacked on top of red blocks.

[0032] The color block stacking layer 4, as a key optical shielding structure, has several design variations. One feasible implementation is that the color block stacking layer 4 consists of two color sub-blocks: red (R) and green (G). In this implementation, the red blocks are stacked on top of the green blocks. Another equivalent implementation is to stack the green blocks on top of the red blocks. Regardless of whether the red or green blocks are on top, the purpose of this stacking structure is to utilize the superposition thickness and optical properties of the two different color blocks to form an effective light-shielding barrier in specific areas between sub-pixels. This achieves physical separation and light blocking functions similar to a traditional black matrix (BM) at the microscale, preventing light leakage and color crosstalk between adjacent sub-pixels.

[0033] In some specific embodiments, the color block stacking layer 4 includes: red blocks and blue blocks, with red blocks stacked on top of blue blocks; or, blue blocks stacked on top of red blocks.

[0034] The color block stacking layer 4, as a key optical shielding structure, has various design implementations. One feasible implementation is that the color block stacking layer 4 consists of two color sub-blocks: red (R) and blue (B). In this implementation, the red blocks are stacked on top of the blue blocks. An equivalent implementation is to stack the blue blocks on top of the red blocks. Regardless of whether the red or blue blocks are on top, the purpose of this stacking structure is to utilize the superposition thickness and optical properties of the two different color blocks to form an effective light-shielding barrier in specific areas between sub-pixels. This achieves physical separation and light blocking functions similar to a traditional black matrix (BM) at the microscale, preventing light leakage and color crosstalk between adjacent sub-pixels.

[0035] In some specific embodiments, the color block stacking layer 4 includes: green blocks and blue blocks, with green blocks stacked on top of blue blocks; or, blue blocks stacked on top of green blocks.

[0036] The color block stacking layer 4, as a key optical shielding structure, has various design implementations. One feasible implementation is that the color block stacking layer 4 consists of two color sub-blocks: a green block (G) and a blue block (B). In this implementation, the green block is stacked on top of the blue block. An equivalent implementation is to stack the blue block on top of the green block. Regardless of whether the green or blue block is on top, the purpose of this stacking structure is to utilize the superposition thickness and optical properties of the two different color blocks to form an effective light-shielding barrier in specific areas between sub-pixels. This achieves physical separation and light blocking functions similar to a traditional black matrix (BM) at the microscale, preventing light leakage and color crosstalk between adjacent sub-pixels.

[0037] In some embodiments, the color block stacking layer 4 includes two of red blocks, green blocks, and blue blocks, and two of the red blocks, green blocks, and blue blocks are stacked together. The color block stacking layer 4 is disposed on the sub-pixel region 7, and at least one color in the color block stacking layer 4 is different from the color of the sub-pixel region 7.

[0038] For example, when a sub-pixel region 7 is red, the color block stacking layer 4 can be composed of green and blue blocks stacked together. The stacking order can be green blocks on top and blue blocks on the bottom, or blue blocks on top and green blocks on the bottom.

[0039] If sub-pixel region 7 is green, then color block stacking layer 4 can be composed of red and blue blocks stacked together. The stacking order can be red blocks on top and blue blocks on the bottom, or blue blocks on top and red blocks on the bottom.

[0040] If sub-pixel region 7 is blue, then color block stacking layer 4 can be composed of red and green blocks stacked together. The stacking order can be red blocks on top and green blocks on the bottom, or green blocks on top and red blocks on the bottom.

[0041] This design utilizes at least one stacked color block that differs in color from the sub-pixel region 7 below. The stacked color blocks, each with its own specific refractive index, induce additional light reflection, scattering, and absorption at the color block interfaces when light passes through, resulting in light energy loss. This physically achieves optical isolation, preventing color crosstalk. This structure directly forms an effective light-shielding barrier, replacing the function of a traditional black matrix, while reducing the requirements for precision manufacturing processes and simplifying the workflow.

[0042] In some embodiments, the color block stack layer 4 includes red blocks, green blocks and blue blocks, which are stacked together, and the color block stack layer 4 is disposed on the thin film transistor layer 2.

[0043] Specifically, the color block stacking layer 4 includes: red blocks, green blocks, and blue blocks, which are stacked sequentially; or, green blocks, red blocks, and blue blocks are stacked sequentially; or, green blocks, blue blocks, and red blocks are stacked sequentially.

[0044] Layer 4 uses a vertical stacking method for three colors of blocks (red, green, and blue), specifically including the following three stacking orders: Red, green, and blue blocks are stacked sequentially: in this structure, the red block is on top, the green block is in the middle, and the blue block is on the bottom; alternatively, the blue block is on top, the green block is in the middle, and the red block is on the bottom. After stacking, the overlapping areas at the boundaries of adjacent sub-pixels will experience optical absorption or reflection effects due to the differences in the light transmittance characteristics of the different color blocks. For example, the stacked areas of red and green, and the stacked areas of green and blue, work together to form a composite masking layer with low light transmittance, effectively suppressing light leakage and color crosstalk between adjacent sub-pixels.

[0045] Green, red, and blue blocks are stacked sequentially: in this structure, the green block is on top, the red block is in the middle, and the blue block is on the bottom; alternatively, the blue block is on top, the red block is in the middle, and the green block is on the bottom. Optical isolation is achieved through the synergistic effect of the overlapping areas of green and red, and the overlapping areas of red and blue. The advantage of this stacking order is that the transmittance of green and red differs significantly, resulting in a more pronounced masking effect in their overlapping areas, making it particularly suitable for boundary isolation of the red sub-pixel region 7.

[0046] Green, blue, and red blocks are stacked sequentially: in this structure, the green block is on top, the blue block is in the middle, and the red block is on the bottom; alternatively, the red block is on top, the blue block is in the middle, and the green block is on the bottom. Because the blue block has a narrower range of transmitted wavelengths, its overlapping area with either the green or red block has a stronger absorption capacity for non-target wavelengths, further enhancing the masking effect. Furthermore, this stacking order can be optimized by adjusting the thickness ratio of each color block (e.g., the green block is 1.2 times thicker than the blue block, and the blue block is 1.5 times thicker than the red block), thus improving the overall optical uniformity and transmittance balance of the overlapping area.

[0047] In this embodiment, one end of the color block stacking layer 4, which is far from the thin film transistor layer 2, protrudes out of the color filter layer 3.

[0048] The color block stack layer 4, at its uppermost surface, away from the underlying thin-film transistor (TFT) layer, is positioned to protrude from the color filter layer 3. The color block stack layer 4 is not flush with the surface of the color filter layer 3 in the vertical direction, but extends upwards and protrudes from the plane of the color filter layer 3. This protrusion is located directly above the edge or boundary region of the corresponding sub-pixel region 7. This structural design, protruding from the color filter layer 3, physically forms a prominent barrier, more effectively isolating adjacent sub-pixels and more reliably preventing color crosstalk.

[0049] In some embodiments, the upper surface of the bottommost color block of the color block stacking layer 4 and the upper surface of its corresponding sub-pixel region 7 are located in the same horizontal plane.

[0050] The upper surface of the bottommost color block of the color block stack layer 4 (i.e., the first color block directly deposited or set on the color filter layer 3) lies on the same horizontal plane as the upper surface of the corresponding sub-pixel region 7. This means that, viewed from a direction perpendicular to the substrate, the top of the bottom color block is flush with the top of the color filter region of the specific sub-pixel (e.g., R, G, or B sub-pixel) it is to cover or associate with, forming a smooth, continuous surface. This precise coplanar design ensures that subsequent layers (such as planarization layer 5) can be uniformly deposited or coated without height differences on the color block stack layer 4 and the sub-pixel region 7 of the color filter layer 3, providing a foundation for the flatness of the overall structure and process stability. Furthermore, if the color of the bottommost color block of the color block stack layer 4 is consistent with the color of its corresponding sub-pixel region 7, the bottommost color block of the color block stack layer 4 can be fabricated simultaneously with the sub-pixel region 7, thereby saving on manufacturing processes and costs (e.g., ...). Figure 3 The first sub-pixel region on the left, 7 and Figure 4 The first sub-pixel region on the left (7).

[0051] In this embodiment, the lower structural layer further includes a planarization layer 5 and a pixel electrode layer 6. The planarization layer 5 is disposed on the color filter layer 3 and the color block stacking layer 4, and the pixel electrode layer 6 is disposed on the planarization layer 5.

[0052] A planarization layer 5 is disposed on the upper surface of the color filter layer 3 and the color block stack layer 4. Its function is to eliminate the interface unevenness caused by the microscopic steps or undulations on the surface of the color filter layer 3 and the color block stack layer 4, and to provide a uniform substrate for the deposition of subsequent lower structural layers. For example, when the color block stack layer 4 is composed of red blocks and green blocks, there may be micron-level edge differences at its junction with the color filter layer 3. The planarization layer 5 achieves surface smoothing by filling these areas (such as by using organic planarization materials or inorganic oxide films), thereby avoiding the risk of short circuits or open circuits in the subsequent pixel electrode layer 6 due to step differences.

[0053] A pixel electrode layer 6 is disposed on top of the planarization layer 5. This layer is formed with conductive patterns corresponding to the sub-pixel regions 7 by photolithography. The pixel electrode layer 6 is typically made of a transparent conductive material (such as indium tin oxide, ITO) or a metallic material (such as aluminum).

[0054] In this embodiment, two pixel electrode layers 6 are disposed above each sub-pixel region 7. The dual-pixel electrode layer 6 design reduces the load on individual electrodes and improves driving efficiency. By independently controlling the voltage of the two lower structural layers, switching between dynamic refresh and static display can be achieved. For example, the lower structural layers can be turned off during static display to reduce power consumption, while during dynamic refresh, both electrode layers can be driven together to accelerate response speed.

[0055] In some embodiments, the two pixel electrode layers 6 are formed using different photolithography processes. For example, the first pixel electrode layer 6 uses indium tin oxide (ITO) material, and a transparent conductive pattern corresponding to the sub-pixel region 7 is formed through photolithography and etching processes. The second pixel electrode layer 6 uses a metal material (such as aluminum or copper), and an independent conductive line is formed through another set of photolithographic masks. The two lower structural layers achieve functional differentiation through a layered design: the first pixel electrode layer 6 mainly undertakes the display driving function, is connected to the source and drain electrodes of the TFT, and is used to receive driving signals and form an electric field; the second pixel electrode layer 6 serves as an auxiliary electrode, used to optimize the electric field distribution or realize multi-mode driving (such as dynamic refresh or static display).

[0056] In this embodiment, the pixel electrode layer 6 is electrically connected to the thin film transistor layer 2.

[0057] The pixel electrode layer 6 is electrically connected to the source and drain electrodes of the thin-film transistor layer 2 through an etching process. It is used to receive driving signals and form a voltage difference with the upper structural layer to drive the response of the display layer (such as a liquid crystal layer or an electronic ink capsule layer). For example, in an electronic paper display structure, the pixel electrode layer 6 can precisely adjust the electric field distribution of each sub-pixel region 7 through the control of the TFT, thereby realizing the independent display of red, green, and blue sub-pixels.

[0058] In this embodiment, it also includes: a capsule layer, a transparent conductive layer and an upper substrate layer (not shown in the figure), with the lower structural layer, capsule layer, transparent conductive layer and upper substrate layer arranged sequentially from bottom to top.

[0059] The capsule layer consists of multiple microcapsules, each containing charged display particles (such as black and white particles or color particles). The distribution of the particles is controlled by an electric field to achieve image display. A transparent conductive layer, as a common lower structure layer, covers the capsule layer and together with the lower structure layer, forms a voltage difference to drive the particle response in the capsule layer. The upper substrate layer is used to encapsulate and protect the entire display structure, while providing optical stability.

[0060] It should be noted that in this embodiment, the viewing side is on the lower structural layer, meaning that the user views the displayed content from the side where the lower substrate layer 1 is located.

[0061] This embodiment also provides a method for manufacturing an electronic paper display structure, including the following steps: Design local overlapping areas: Design local overlapping areas between R, G, and B sub-regions. By adjusting the shape and size of the sub-regions, the adjacent sub-regions will partially overlap. Fabrication of thin-film transistor structure layers; A color filter layer is fabricated on a thin-film transistor structure layer; Fabrication of color filter layer: R, G, and B sub-regions are sequentially fabricated on the substrate; Optical function of overlapping region: The locally overlapping region optically achieves a separation and masking function similar to that of a traditional black matrix.

[0062] Then, the planarization layer, pixel electrode layer, capsule layer, transparent conductive layer, and upper substrate layer are prepared sequentially.

[0063] This embodiment also provides an electronic paper, including the electronic paper display structure described in the above embodiment.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this invention.

[0065] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusivity.

[0066] The term "comprises" implies that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An electronic paper display structure, characterized in that, The lower structure layer includes multiple color block stacked layers and a lower substrate layer, a thin film transistor layer and a color filter layer arranged sequentially. The color filter layer includes multiple spaced sub-pixel regions, each color block stacking layer corresponds to one of the sub-pixel regions, the color block stacking layer corresponds to the thin film transistor switch of the thin film transistor layer, the color block stacking layer is located above the sub-pixel region or the thin film transistor layer to achieve the stacking of at least two different color layers, and the color block stacking layer includes at least one of red blocks, green blocks and blue blocks.

2. The electronic paper display structure according to claim 1, characterized in that, The color block stacking layer includes one of red blocks, green blocks, and blue blocks, and the color block stacking layer is disposed on the sub-pixel region. The color of the color block stacking layer is different from the color of the sub-pixel region.

3. The electronic paper display structure according to claim 1, characterized in that, The color block stack layer includes two of red blocks, green blocks, and blue blocks, and two of the red blocks, green blocks, and blue blocks are stacked together. The color block stack layer is disposed on the thin film transistor layer.

4. The electronic paper display structure according to claim 1, characterized in that, The color block stacking layer includes two of red blocks, green blocks, and blue blocks, and two of the red blocks, green blocks, and blue blocks are stacked together. The color block stacking layer is disposed on the sub-pixel region, and at least one color in the color block stacking layer is different from the color of the sub-pixel region.

5. The electronic paper display structure according to claim 1, characterized in that, The color block stack layer includes red blocks, green blocks, and blue blocks, which are stacked together and disposed on the thin-film transistor layer.

6. The electronic paper display structure according to claim 1, characterized in that, The end of the color block stack layer away from the thin-film transistor layer protrudes from the color filter layer.

7. The electronic paper display structure according to claim 1, characterized in that, The lower structural layer further includes a planarization layer and a pixel electrode layer, wherein the planarization layer is disposed on the color filter layer and the color block stack layer, and the pixel electrode layer is disposed on the planarization layer.

8. The electronic paper display structure according to claim 7, characterized in that, The pixel electrode layer is electrically connected to the thin-film transistor layer.

9. The electronic paper display structure according to claim 7, characterized in that, Also includes: The capsule layer, the transparent conductive layer, and the upper substrate layer are arranged sequentially from bottom to top.

10. An electronic paper, characterized in that, include: The electronic paper display structure as described in any one of claims 1-9.

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