Display panel, manufacturing method thereof and display device

Abstract

This invention discloses a display panel, its manufacturing method, and a display device. The display panel includes: a first substrate; a plurality of color resist blocks located on one side of the first substrate; and a plurality of reflective portions located at the edge of at least one color resist block. The reflective portions and color resist blocks are located on the same side of the first substrate. Each reflective portion has a first side surface and a second side surface. The surface of the reflective portion located at the edge of the same color resist block closer to the center of the color resist block is the second side surface, and the surface farther from the center of the color resist block is the first side surface. The second side surface has at least one first protrusion located on the side of the color resist block away from the first substrate. The reflective portions located at the edge of the same color resist block can reflect light reflected to the edge of the color resist block multiple times, causing the propagation direction of the light to continuously change, and finally exit from the area corresponding to the color resist block. This at least partially alleviates or even solves the color shift problem and can also improve the intensity of the emitted light.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to display panels, methods of manufacturing the same, and display devices. Background Technology

[0002] Electronic paper has gained significant attention due to its advantages such as easy paperless office operations, batch refresh, energy saving, and long-term stability, leading to the emergence of more and more electronic ink screens.

[0003] However, existing color electronic paper products suffer from color deviation, resulting in a low color gamut, which needs to be improved. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] In one aspect of the present invention, a display panel is provided. According to an embodiment of the present invention, the display panel includes: a first substrate; a plurality of color resist blocks located on one side of the first substrate; and a plurality of reflective portions located at the edge of at least one color resist block. The reflective portions and the color resist blocks are located on the same side of the first substrate. Each reflective portion has a first side surface and a second side surface. The surface of the reflective portion located near the center of the color resist block at the edge of the same color resist block is the second side surface, and the surface away from the center of the color resist block is the first side surface. The second side surface has at least one first protrusion located on the side of the color resist block away from the first substrate. Thus, the reflective portions located at the edge of the same color resist block can reflect light reflected to the edge of the color resist block multiple times, causing the propagation direction of the light to continuously change, ultimately emitting from the area corresponding to the color resist block. This at least partially alleviates or even solves the color shift problem caused by light emitting from the area corresponding to adjacent color resist blocks, and improves the utilization rate of light and the intensity of the emitted light.

[0006] According to an embodiment of the present invention, the reflective portion includes a substrate and a reflective layer. The reflective layer has a first protrusion, and the substrate has a second protrusion. The reflective layer covers at least a portion of the surface of the substrate away from the first side. The reflective layer being disposed on a portion of the surface of the substrate, and the substrate having a second protrusion, further facilitates the formation of the first protrusion of the reflective layer, thereby improving the light-regulating effect of the reflective layer.

[0007] According to an embodiment of the present invention, the display panel includes a plurality of first color resists, a plurality of second color resists, and a plurality of third color resists. The colors of the light transmitted by the first color resists, the second color resists, and the third color resists are all different. The material of the substrate of at least one of the reflective portions is the same as the material of the corresponding color resist.

[0008] According to an embodiment of the present invention, the display panel further includes: a planarization layer located on the side of the color resist block away from the first substrate, the planarization layer covering at least a portion of the surface of the color resist block away from the first substrate and at least a portion of the surface of the reflective portion away from the first substrate; a first electrode located on the side of the planarization layer away from the first substrate; a microcapsule layer located on the side of the first electrode away from the first substrate, the microcapsule layer comprising a plurality of microcapsules, the microcapsules containing black particles and white particles; a plurality of spaced-apart pixel electrodes located on the side of the microcapsule layer away from the first substrate; and a second substrate located on the side of the pixel electrodes away from the first substrate. Thus, by applying a voltage to the first electrode and / or the second electrode to form an electric field, the black and white particles in the microcapsules move under the action of the electric field, thereby displaying a pattern or image.

[0009] According to embodiments of the present invention, the first protrusion is part of a sphere or part of an ellipsoid; and / or, the size and shape of the first protrusions of multiple reflective portions located on the edge of the same color resist block are not exactly the same. This facilitates the adjustment of the light propagation direction, allowing light to exit from the corresponding area of ​​the respective color resist block, thereby further improving light utilization while addressing color shift issues.

[0010] According to an embodiment of the present invention, the reflective layer is made of aluminum; and / or, in the direction from the first side surface to the second side surface, the size of the reflective portion is 1.5 μm to 8 μm. This is beneficial for further improving the overall performance of the display panel.

[0011] In another aspect of the present invention, a method for manufacturing the aforementioned display panel is provided. According to an embodiment of the present invention, the method for manufacturing the aforementioned display panel includes: providing a first substrate; forming a plurality of color resist blocks and a plurality of reflective portions on one side of the first substrate, wherein the plurality of reflective portions are located at the edge of at least one color resist block, the reflective portions and the color resist blocks are located on the same side of the first substrate, the reflective portions have a first side surface and a second side surface, the surface of the reflective portion located near the center of the color resist block on the edge of the same color resist block is the second side surface, and the surface away from the center of the color resist block is the first side surface, the second side surface has at least one first protrusion, the first protrusion being located on the side of the color resist block away from the first substrate. Thus, the display panel manufactured using the above method possesses all the features and advantages of the aforementioned display panel, which will not be repeated here.

[0012] According to an embodiment of the present invention, forming the reflective portion includes: forming a substrate at the edge of the color resist block, the substrate having a first side surface and a third side surface, the third side surface having at least one second protrusion, the first side surface being disposed away from the center of the color resist block, and the third side surface being disposed close to the center of the color resist block; forming a reflective layer covering at least a portion of the third side surface of the substrate, the reflective layer having the first protrusion. Thus, by first forming a substrate with the second protrusion, and then forming the reflective layer on at least a portion of the surface of the substrate, the formation of the first protrusion of the reflective layer is facilitated, thereby improving the light-regulating effect of the reflective layer and consequently enhancing the overall performance of the display panel.

[0013] According to an embodiment of the present invention, forming a plurality of color resist blocks and a plurality of reflective portions includes: forming a first color resist layer, exposing and developing the first color resist layer using a mask to form a plurality of first color resist blocks and a plurality of first substrates, wherein the first substrates are located at the edges of the first color resist blocks; forming a second color resist layer, exposing and developing the second color resist layer using a mask to form a plurality of second color resist blocks and a plurality of second substrates, wherein the second substrates are located at the edges of the second color resist blocks; forming a third color resist layer, exposing and developing the third color resist layer using a mask to form a plurality of third color resist blocks and a plurality of third substrates, wherein the third substrates are located at the edges of the third color resist blocks. The edge of the color resist block; wherein the third side surface of the first substrate, the third side surface of the second substrate, and the third side surface of the third substrate all have a second protrusion; a reflective material layer is formed, and the reflective material layer is etched to form a first reflective layer, a second reflective layer, and a third reflective layer, wherein the first reflective layer covers at least a portion of the third side surface of the first substrate, the second reflective layer covers at least a portion of the third side surface of the second substrate, and the third reflective layer covers at least a portion of the third side surface of the third substrate, and the first reflective layer, the second reflective layer, and the third reflective layer all have the first protrusion.

[0014] In another aspect, the present invention provides a display device. According to an embodiment of the invention, the display device includes the display panel described above or a display panel manufactured using the method described above. Thus, the display device possesses all the features and advantages of the display panel described above, which will not be repeated here. In general, the display device has a high color gamut and good display effect. Attached Figure Description

[0015] Figure 1 This shows a schematic diagram of the structure of a display panel in the related technology;

[0016] Figure 2 A schematic diagram of the structure of a display panel according to an embodiment of the present invention is shown;

[0017] Figure 3 A schematic diagram of the structure of a display panel according to another embodiment of the present invention is shown;

[0018] Figure 4 A partial structural schematic diagram of a display panel according to an embodiment of the present invention is shown;

[0019] Figure 5 A partial structural schematic diagram of a display panel according to another embodiment of the present invention is shown;

[0020] Figure 6 A partial structural schematic diagram of a display panel according to yet another embodiment of the present invention is shown;

[0021] Figure 7 A partial structural schematic diagram of a display panel according to another embodiment of the present invention is shown;

[0022] Figure 8 A schematic diagram of the structure of a display panel according to yet another embodiment of the present invention is shown;

[0023] Figure 9 A schematic diagram of the structure of a display panel according to yet another embodiment of the present invention is shown;

[0024] Figure 10 A partial structural schematic diagram of a display panel according to yet another embodiment of the present invention is shown;

[0025] Figure 11 A partial flowchart of a method for manufacturing a display panel according to an embodiment of the present invention is shown;

[0026] Figure 12 A partial flowchart of a method for manufacturing a display panel according to an embodiment of the present invention is shown;

[0027] Figure 13 A partial flowchart of a method for manufacturing a display panel according to an embodiment of the present invention is shown.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1: External light source; 2: Capsule; 3: Upper substrate; 4: Lower substrate; 6: Mask; 7: First trace; 8: Second trace; R: Red resist; G: Green resist; B: Blue resist. 100: First substrate; 200: Resist; 200-1': First resist layer; 200-1: First resist; 200-2: Second resist; 200-3: Third resist; 300: Reflective part; 300-1: First reflective part; 300-2: Second reflective part; 300-3: Third reflective part; 310: Substrate; 310-1: First substrate; 310-2: Second substrate; 310-3: Third substrate; 311: First side surface; 312: Second protrusion; 31 3: Third side surface; 320: Reflective layer; 320': Reflective material layer; 320-1: First reflective layer; 320-2: Second reflective layer; 320-3: Third reflective layer; 321: Second side surface; 322: First protrusion; 400: Planarization layer; 500: Microcapsule layer; 510: Microcapsule; 511: White particle; 512: Black particle; 600: Second substrate; 700: First electrode; 800: Pixel electrode; 910: First optical adhesive; 920: Second optical adhesive. Detailed Implementation

[0030] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0031] refer to Figure 1 In related technologies, multiple capsules 2 are disposed between the upper substrate 3 and the lower substrate 4. A color filter layer is disposed on the side of the capsule 2 closest to the upper substrate 3. The color filter layer has a red color resist block R, a green color resist block G, and a blue color resist block B. No black matrix is ​​disposed between the color resist blocks of different colors. Light emitted from an external light source 1 shines on the display panel. The light passes through the color resist blocks and shines on the capsules, which reflect the light, such as... Figure 1 As shown, some of the light passing through the red color resist block R is reflected by capsule 2 and then exits above the green color resist block G adjacent to the red color resist block R, causing a yellowish tint to appear in the display area corresponding to the green color resist block G. Similarly, some of the light passing through the blue color resist block B is reflected by capsule 2 and then exits above the green color resist block G adjacent to the blue color resist block R, causing a cyanish tint to appear in the display area corresponding to the green color resist block G. The color shift problem of the display panel mentioned above will lead to a reduction in color gamut and affect the display effect of the display panel.

[0032] The inventors discovered that multiple reflective elements can be set on the edge of the color resist block to adjust the light path of the light reflected from the capsule to the edge of the color resist block. This allows the light to be emitted from the area above the corresponding color resist block after continuous reflection and / or refraction, thereby alleviating or even solving the color shift problem of the display panel to some extent, improving the color gamut of the display panel, and increasing the reflectivity of the light, so that the display panel has a better display effect.

[0033] In view of this, in one aspect of the present invention, a display panel is provided. According to an embodiment of the present invention, reference is made to... Figures 2 to 9 The display panel may include a first substrate 100, a plurality of color resist blocks 200 and a plurality of reflective portions 300, wherein the plurality of color resist blocks 200 are located on one side of the first substrate 100; the plurality of reflective portions 300 are located on the edge of at least one color resist block 200, and the reflective portions 300 and the color resist blocks 200 are located on the same side of the first substrate 100. The reflective portions 300 have a first side surface 311 and a second side surface 321. The surface of the reflective portion 300 located on the edge of the same color resist block 200 that is closer to the center of the color resist block is the second side surface 321, and the surface that is farther away from the center of the color resist block is the first side surface 311. The second side surface 321 has at least one first protrusion 322, and the first protrusion 322 is located on the side of the color resist block 200 that is farther away from the first substrate 100. A reflective portion is provided on the edge of at least one color resist block. The reflective portion has a first protrusion. The reflective portion can reflect and / or refract light reflected to the edge of at least one color resist block, change the light path of the light, and make the light emerge from above the corresponding color resist block. This avoids the color shift problem caused by some light being emitted through adjacent color resist blocks, and improves the reflectivity and utilization of light, so that the display panel has a better display effect.

[0034] According to some embodiments of the present invention, reference Figures 2 to 9 The first protrusion 322 can be part of a sphere or part of an ellipsoid. The first protrusion has a smooth surface, which can better adjust the light path, so that more light can be emitted through the corresponding color resist block, thereby improving the light utilization rate and reflectivity, and thus improving the display effect of the display panel.

[0035] Specifically, such as Figures 2 to 5 As shown by the dashed light rays, the reflector can change the propagation path of the light. After being reflected multiple times by the reflector, the wide-angle light rays reflected by the microcapsule can be emitted from above the corresponding color block.

[0036] According to some embodiments of the present invention, the size and shape of the first protrusions 322 on the multiple reflective portions 300 located on the same edge of the color resist block 200 are not exactly the same. That is, the first protrusions 322 on the multiple reflective portions 300 on the edge of the color resist block 200 can have different shapes and sizes. Thus, the size and shape of the first protrusions on the reflective portions located on the same edge of the color resist block are different, which can further improve the adjustment effect of the first protrusion on the light, so that the light continuously changes the light path and is finally emitted from above the corresponding color resist block.

[0037] According to some embodiments of the present invention, reference Figures 2 to 4 The second side surface 321 of the reflective portion 300 may have a first protrusion 322. According to some embodiments of the present invention, see reference... Figures 5 to 7 The second side surface 321 of the reflective portion 300 may also have two first protrusions 322. Thus, the reflective portion has a certain number of first protrusions, which can adjust the optical path of light, improve the reflectivity of light, and prevent light crosstalk.

[0038] According to some embodiments of the present invention, reference Figures 3 to 7 The reflective portion 300 may include a substrate 310 and a reflective layer 320. The reflective layer 320 has a first protrusion 322, and the substrate 310 has a second protrusion 312. The reflective layer 320 covers at least a portion of the surface of the substrate 310 away from the first side surface 311. The second protrusion on the substrate is disposed towards the interior of the color resist block, which facilitates the formation of the first protrusion on the reflective layer, thereby adjusting the propagation path of light, improving the reflectivity of light, and avoiding color shift problems.

[0039] According to some embodiments of the present invention, the reflective layer 320 may be made of aluminum. Aluminum can reflect light, thereby changing the propagation path of the light and thus altering the light path.

[0040] According to some embodiments of the present invention, the substrate 310 of the reflective portion 300 located at the edge of the color resist block 200 is made of the same material as the color resist block 200. Therefore, the substrate of the reflective portion located at the edge of the color resist block can also filter light within a certain wavelength range, allowing only light within a defined wavelength range to exit from above the corresponding color resist block, thereby further improving the color shift problem.

[0041] According to some embodiments of the present invention, reference Figures 2 to 9The display panel may include multiple first color resist blocks 200-1, multiple second color resist blocks 200-2, and multiple third color resist blocks 200-3. The first color resist blocks 200-1, second color resist blocks 200-2, and third color resist blocks 200-3 transmit light of different colors. Therefore, different color resist blocks can transmit different colors of light, which is beneficial for the display panel to display color images. According to some embodiments of the present invention, the first color resist block 200-1, second color resist block 200-2, and third color resist block 200-3 may be one of a red color resist block, a green color resist block, and a blue color resist block, respectively; that is, the color resist blocks 200-1, second color resist block 200-2, and third color resist block 200-3 may transmit one of red light, green light, and blue light, respectively.

[0042] According to an embodiment of the present invention, reference Figures 3 to 9 At least one reflective part 300 has a substrate 310 made of the same material as the corresponding color resist block 200.

[0043] According to some embodiments of the present invention, reference Figures 3 to 9 The material of the substrate 310 of the reflective portion 300 (first reflective portion 300-1) located at the edge of the first color block 200-1 can be the same as the material of the first color block 200-1. Therefore, the substrate of the reflective portion located at the edge of the first color block can also filter light, thereby helping to further improve the color shift problem.

[0044] According to some embodiments of the present invention, reference Figures 3 to 9 The material of the substrate 310 of the reflective portion 300 (second reflective portion 300-2) located at the edge of the second color block 200-2 can be the same as the material of the second color block 200-2. Therefore, the substrate of the reflective portion located at the edge of the second color block can also filter light, thereby helping to further improve the color shift problem.

[0045] According to some embodiments of the present invention, reference Figures 3 to 9 The material of the substrate 310 of the reflective portion 300 (third reflective portion 300-3) located at the edge of the third color block 200-3 can be the same as the material of the third color block 200-3. Therefore, the substrate of the reflective portion located at the edge of the third color block can also filter light, thereby helping to further improve the color shift problem.

[0046] According to some embodiments of the present invention, the material of the substrate of the reflective portion located at the edge of the color resist block may also be different from the material of the color resist block, as long as the substrate can form a raised structure, which facilitates the formation of a reflective layer with a raised structure on the surface of the substrate.

[0047] According to some embodiments of the present invention, reference Figure 6 and Figure 7Along the direction from the first side surface 311 to the second side surface 321, the size d of the reflective portion 300 can be 1.5μm to 8μm. For example, the size d of the reflective portion 300 can be 1.5μm, 2μm, 3.5μm, 5μm, 6μm, 8μm, etc. Therefore, the reflective portion has a suitable size, which will not adversely affect the light filtering of the color filter block, and can also effectively improve the optical path.

[0048] It should be noted that, in some embodiments, references Figure 7 The substrate of the reflective portion located at the edge of a certain color block can be formed in the same step and process as the reflective portion. The reflective layer is relatively thin (in some embodiments, the thickness of the reflective layer covering part of the substrate surface is only about 0.2 μm), and its thickness can be ignored. In the direction from the first side 311 to the second side 321, the thickness of the reflective portion 300 can be approximately equivalent to the size of the substrate 310 of the reflective portion 300.

[0049] According to some embodiments of the present invention, reference Figure 3 , Figure 8 and Figure 9 The display panel may further include a planarization layer 400, a first electrode 700, a microcapsule layer 500, a plurality of spaced pixel electrodes 800, and a second substrate 600. (Referring to...) Figure 3 , Figure 8 and Figure 9 A planarization layer 400 is located on the side of the color resist block 200 away from the first substrate 100, and the planarization layer 400 covers at least a portion of the surface of the color resist block 200 away from the first substrate 100 and at least a portion of the surface of the reflective portion 300 away from the first substrate 100; a first electrode 700 is located on the side of the planarization layer 400 away from the first substrate 100; a microcapsule layer 500 is located on the side of the first electrode 700 away from the first substrate 100, and the microcapsule layer 500 may include a plurality of microcapsules 510, each microcapsule 510 having black particles 512 and white particles 511; a pixel electrode 800 is located on the side of the microcapsule layer 500 away from the first substrate 100; and a second substrate 600 is located on the side of the pixel electrode 800 away from the first substrate 100. Therefore, the planarization layer can play a good planarization role, making it easier to form other film structures on it; black particles can be negatively charged and white particles can be positively charged. By applying voltage to the first electrode and the pixel electrode, the black and white particles in the microcapsule can be moved under the action of the electric field, thereby forming an image and enabling the display panel to display the picture. Changing the electric field can change the arrangement of black and white particles, thereby producing different patterns or pictures.

[0050] According to some embodiments of the present invention, reference Figure 10The display panel may also include a first trace 7 and a second trace 8, and each color resist block 200 may have multiple reflective parts 300 on its edge area.

[0051] According to some embodiments of the present invention, reference Figure 8 and Figure 9 The black particles 512 and white particles 511 in the microcapsule 510 can be distributed in the electrophoresis solution.

[0052] According to some embodiments of the present invention, the planarization layer 400 can be made of a resin with good light transmittance. Thus, the planarization layer can not only play a good planarization role, but also have high light transmittance, which is conducive to further improving the overall performance of the display panel.

[0053] According to some embodiments of the present invention, the material of the first electrode 700 may include ITO (indium tin oxide). ITO has good conductivity, which is beneficial for forming an electric field by applying a voltage thereon, thereby controlling the microcapsule layer.

[0054] In another aspect of the invention, a method for manufacturing the aforementioned display panel is provided. According to some embodiments of the invention, reference is made to… Figures 11 to 13 The manufacturing of the aforementioned display panel may include the following steps:

[0055] S100: Provides the first substrate.

[0056] refer to Figure 11 In this step, a first substrate 100 is provided.

[0057] S200: Multiple color resist blocks and multiple reflective portions are formed on one side of the first substrate.

[0058] refer to Figure 11 A plurality of color resist blocks 200 and a plurality of reflective portions 300 are formed on one side of the first substrate 100. The plurality of reflective portions 300 are located at the edge of at least one color resist block 200. The reflective portions 300 and the color resist blocks 200 are located on the same side of the first substrate 100. The reflective portions have a first side surface and a second side surface. The surface of the reflective portion located at the edge of the same color resist block that is closer to the center of the color resist block is the second side surface, and the surface that is farther away from the center of the color resist block is the first side surface. The second side surface has at least one first protrusion, and the first protrusion is located on the side of the color resist block that is farther away from the first substrate.

[0059] According to some embodiments of the present invention, reference Figure 4 and Figure 11Forming the reflective portion 300 may include the following steps: forming a substrate 310 at the edge of the color resist block 200, the substrate 310 having a first side surface 311 and a third side surface 313, the third side surface 313 having at least one second protrusion 312, the first side surface 311 being disposed away from the center of the color resist block 200, and the third side surface 313 being disposed close to the center of the color resist block 200; forming a reflective layer 320, the reflective layer 320 covering at least a portion of the third side surface 313 of the substrate 310, the reflective layer 320 having a first protrusion 322.

[0060] According to some embodiments of the present invention, reference Figure 11 Forming multiple color resist blocks 200 and multiple reflective parts 300 may include the following steps:

[0061] A first color resist layer 200-1' is formed. A mask 6 is used to expose and develop the first color resist layer 200-1' to form multiple first color resist blocks 200-1 and multiple first substrates 310-1. The first substrates 310-1 are located at the edges of the first color resist blocks 200-1. According to some embodiments of the present invention, in this step, the mask 6 above the area of ​​the first color resist layer where the first substrate needs to be formed can be set to an ellipse, and multiple first color resist blocks and multiple first substrates with raised structures are obtained through exposure and development. The first substrates and first color resist blocks can be an integral structure.

[0062] According to some embodiments of the present invention, the area above the first substrate can transmit 100% of the light during exposure, while the area above the first color resist can transmit 50% of the light during exposure. After development, the first color resist layer on the unlit area is removed, the height of the first color resist block is retained as half of the height of the first color resist layer, and the height of the first color resist layer at the first substrate can be consistent with the original height of the first color resist layer.

[0063] According to other embodiments of the present invention, during the exposure process, gas etching can be combined to form such as Figure 11 The structure of the substrate shown is specifically obtained by exposing it for a period of time, then etching it with oxygen, exposing it for another period of time, and repeating the process until a substrate with a raised structure is obtained.

[0064] According to some embodiments of the present invention, reference Figure 11 After forming the first color resist 200-1 and the first substrate 310-1, a second color resist layer is formed. The second color resist layer is exposed and developed using a mask to form multiple second color resists 200-2 and multiple second substrates 310-2. The second substrates 310-2 are located at the edge of the second color resists 200-2.

[0065] According to some embodiments of the present invention, reference Figure 11A third color resist layer is formed. A mask is used to expose and develop the third color resist layer, forming multiple third color resist blocks 200-3 and multiple third substrates 310-3. The third substrates 310-3 are located at the edges of the third color resist blocks 200-3. The methods for forming the second color resist block and the second substrate, and the methods for forming the third color resist block and the third substrate, are largely the same as those for forming the first color resist block and the first substrate, and will not be described in detail here.

[0066] refer to Figure 11 and Figure 4 The third side surface 313 of the first substrate 310-1, the third side surface 313 of the second substrate 310-2, and the third side surface 313 of the third substrate 310-3 all have a second protrusion 312.

[0067] According to some embodiments of the present invention, reference Figure 11 A reflective material layer 320' is formed, and the reflective material layer 320' is etched to form a first reflective layer 320-1, a second reflective layer 320-2, and a third reflective layer 320-3. The first reflective layer 320-1 covers at least a portion of the third side surface 313 of the first substrate 310-1, the second reflective layer 320-2 covers at least a portion of the third side surface 313 of the second substrate 310-2, and the third reflective layer 320-3 covers at least a portion of the third side surface 313 of the third substrate 310-3. Furthermore, the first reflective layer 320-1, the second reflective layer 320-2, and the third reflective layer 320-3 each have a first protrusion 322.

[0068] During the formation of the color resist block, the same materials and steps are used to form a substrate with a raised structure at the edge of the color resist block, which is beneficial to the formation of the raised structure on the subsequently deposited reflective layer.

[0069] According to some embodiments of the present invention, after the reflective material layer 320' is formed, the reflective material layer on the surface of the substrate away from the first substrate can also be removed by methods such as exposure and etching.

[0070] According to some embodiments of the present invention, the reflective material layer 320' can be obtained by depositing aluminum, which can reflect light. Combined with the protruding structure of the reflective part, the propagation path of light can be effectively changed, so that the light is emitted from above the corresponding color block.

[0071] The display panel fabricated using the above method exhibits good display performance and a wide color gamut. Using the same materials and steps to form the color resist and substrate helps save materials and streamline the manufacturing process.

[0072] According to some embodiments of the present invention, reference Figure 12 The method for manufacturing the aforementioned display panel may also include the following steps:

[0073] S300: Forms a flattening layer.

[0074] refer to Figure 12 The planarization layer 400 covers at least a portion of the surface of the color resist block 200 away from the first substrate 100 and at least a portion of the surface of the reflective portion 300 away from the first substrate 100.

[0075] S400: A first electrode is formed on the side of the planarization layer away from the first substrate.

[0076] refer to Figure 12 A first electrode 700 is formed on the side of the planarization layer 400 away from the first substrate 100. According to some embodiments of the present invention, the first electrode 700 can be obtained by depositing ITO.

[0077] S500: A microcapsule layer is formed on the side of the first electrode away from the first substrate.

[0078] According to some embodiments of the present invention, reference Figure 12 A microcapsule layer 500 is formed on the side of the first electrode 700 away from the first substrate 100. The structure of the microcapsule layer has been described in detail above and will not be repeated here.

[0079] According to some embodiments of the present invention, reference Figure 12 The microcapsule layer 500 can be bonded to the side of the first electrode 700 away from the first substrate 100 using the first optical adhesive 910.

[0080] S600: Provides a second substrate, on one side of which a plurality of pixel electrodes are formed at intervals.

[0081] refer to Figure 13 A plurality of pixel electrodes 800 are formed at intervals on one side of the second substrate 600. By applying voltage to the pixel electrodes and the first electrode, an electric field can be formed, and the black and white particles in the microcapsules can move under the action of the electric field. By changing the electric field, the image displayed on the display panel can be changed.

[0082] According to some embodiments of the present invention, a pixel electrode can be disposed in a thin-film transistor structure, wherein one of the source or drain electrodes in the thin-film transistor is connected to an active layer, and the other can be used as a pixel electrode.

[0083] According to some embodiments of the present invention, the diameter of the microcapsule 510 can be 20μm to 40μm. The size of a single thin film transistor is much larger than the size of a microcapsule. Therefore, by placing the reflective part in the edge region of the monochromatic color block, the cross-color problem caused by the microcapsule reflecting light to the adjacent color block under the action of the edge electric field can be better prevented, thereby improving color deviation and enhancing the color gamut.

[0084] It should be noted that there are no special requirements on the order of the steps of forming color resist blocks and reflective parts on the first substrate and the steps of forming pixel electrodes on the second substrate. They can be performed simultaneously, or the manufacturing order can be set according to actual needs.

[0085] S700: Align the second substrate with the first substrate, such that the pixel electrode is located on the side of the microcapsule layer away from the first substrate, and the pixel electrode is located between the first substrate and the second substrate.

[0086] According to some embodiments of the present invention, reference Figure 13 The second substrate 600 is aligned with the first substrate 100, such that the pixel electrode 800 is located on the side of the microcapsule layer 500 away from the first substrate 100, and the pixel electrode 800 is located between the first substrate 100 and the second substrate 600, forming a structure as shown in the figure. Figure 13 The display panel shown.

[0087] According to an embodiment of the present invention, reference Figure 13 The second optical adhesive 920 can be bonded to the side of the pixel electrode 800 away from the second substrate 600. Then, the microcapsule layer 500 is bonded to the surface away from the first substrate 100 by the second optical adhesive 920, thereby forming the overall structure of the display panel.

[0088] In another aspect, the present invention provides a display device. According to an embodiment of the present invention, the display device may include the display panel described above or a display panel manufactured using the method described above. Thus, the display device possesses all the features and advantages of the display panel described above, which will not be repeated here.

[0089] According to embodiments of the present invention, there are no special requirements for the specific type of the display device described above. Those skilled in the art can flexibly choose according to actual needs, such as display devices such as e-book readers.

[0090] Those skilled in the art will understand that, in addition to the display panel described above, the display device may also have the necessary structures and components of a conventional display device, such as a battery back cover, a mid-frame, a touch panel, an audio module, a motherboard, and other essential structures and components.

[0091] The terms "first," "second," and "third" used herein are 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 as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0092] In the description of this specification, the references to terms such as "one embodiment," "another embodiment," "some embodiments," "some specific embodiments," or "other specific embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in 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.

[0093] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A display panel, characterized in that, include: First substrate; Multiple color resist blocks, wherein the multiple color resist blocks are located on one side of the first substrate; Multiple reflective portions are located at the edge of at least one color resist block. The reflective portions and the color resist block are located on the same side of the first substrate. Each reflective portion has a first side surface and a second side surface. The surface of the reflective portion located at the edge of the same color resist block that is closer to the center of the color resist block is the second side surface, and the surface that is farther from the center of the color resist block is the first side surface. The second side surface has at least one first protrusion located on the side of the color resist block that is farther from the first substrate.

2. The display panel according to claim 1, characterized in that, The reflective portion includes a substrate and a reflective layer, the reflective layer having a first protrusion, the substrate having a second protrusion, and the reflective layer covering at least a portion of the surface of the substrate away from the first side.

3. The display panel according to claim 2, characterized in that, The display panel includes multiple first color resist blocks, multiple second color resist blocks, and multiple third color resist blocks. The colors of the light transmitted by the first color resist block, the second color resist block, and the third color resist block are all different. The material of the substrate of at least one of the reflective parts is the same as the material of the corresponding color resist block.

4. The display panel according to any one of claims 1 to 3, characterized in that, The display panel also includes: A planarization layer is located on the side of the color resist block away from the first substrate, and the planarization layer covers at least a portion of the surface of the color resist block away from the first substrate and at least a portion of the surface of the reflective portion away from the first substrate; A first electrode is located on the side of the planarization layer away from the first substrate; A microcapsule layer is located on the side of the first electrode away from the first substrate. The microcapsule layer includes a plurality of microcapsules, and the microcapsules contain black particles and white particles. Multiple pixel electrodes are spaced apart, and the pixel electrodes are located on the side of the microcapsule layer away from the first substrate; The second substrate is located on the side of the pixel electrode away from the first substrate.

5. The display panel according to any one of claims 1 to 3, characterized in that, The first protrusion is part of a sphere or part of an ellipsoid; and / or, the size and shape of the first protrusions of multiple reflective portions located on the edge of the same color block are not exactly the same.

6. The display panel according to claim 2 or 3, characterized in that, The material of the reflective layer includes aluminum; and / or, in the direction from the first side to the second side, the size of the reflective portion is 1.5μm to 8μm.

7. A method for manufacturing a display panel according to any one of claims 1 to 6, characterized in that, include: Provide a first substrate; A plurality of color resist blocks and a plurality of reflective portions are formed on one side of the first substrate, wherein the plurality of reflective portions are located at the edge of at least one color resist block, the reflective portions and the color resist blocks are located on the same side of the first substrate, the reflective portions have a first side surface and a second side surface, the surface of the reflective portion located on the edge of the same color resist block that is closer to the center of the color resist block is the second side surface, and the surface that is farther away from the center of the color resist block is the first side surface, the second side surface has at least one first protrusion, the first protrusion being located on the side of the color resist block that is farther away from the first substrate.

8. The method according to claim 7, characterized in that, The reflective portion includes: A substrate is formed at the edge of the color resist block. The substrate has a first side and a third side. The third side has at least one second protrusion. The first side is disposed away from the center of the color resist block, and the third side is disposed close to the center of the color resist block. A reflective layer is formed, the reflective layer covering at least a portion of the third side surface of the substrate, the reflective layer having the first protrusion.

9. The method according to claim 8, characterized in that, The formation of multiple color resist blocks and multiple reflective elements includes: A first color resist layer is formed, and the first color resist layer is exposed and developed using a mask to form multiple first color resist blocks and multiple first substrates, wherein the first substrates are located at the edges of the first color resist blocks; A second color resist layer is formed. The second color resist layer is exposed and developed using a mask to form multiple second color resist blocks and multiple second substrates. The second substrates are located at the edges of the second color resist blocks. A third color resist layer is formed. The third color resist layer is exposed and developed using a mask to form multiple third color resist blocks and multiple third substrates. The third substrates are located at the edges of the third color resist blocks. The third side surface of the first substrate, the third side surface of the second substrate, and the third side surface of the third substrate all have the second protrusion; A reflective material layer is formed, and the reflective material layer is etched to form a first reflective layer, a second reflective layer, and a third reflective layer. The first reflective layer covers at least a portion of the third side surface of the first substrate, the second reflective layer covers at least a portion of the third side surface of the second substrate, and the third reflective layer covers at least a portion of the third side surface of the third substrate. Furthermore, the first reflective layer, the second reflective layer, and the third reflective layer all have the first protrusion.

10. A display device, characterized in that, The display panel includes any one of claims 1 to 6 or a display panel manufactured using any one of claims 7 to 9.

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