Photopolymer pixel arrangement structure, photopolymer module and printing equipment

Abstract

This invention discloses a photocurable pixel arrangement structure, a photocurable module, and a printing device. By setting multiple sub-pixels with different wavelength ranges and arranging them in a special array, the differences in beam angle and curing effect of multiple sub-pixels with different wavelength ranges are balanced, and the light coverage range of various sub-pixels is better matched.

Description

Technical Field

[0001] This invention belongs to the field of photopolymerization technology, specifically relating to a photopolymerization pixel arrangement structure, a photopolymerization module, and a printing device. Background Technology

[0002] Existing photopolymerization methods for printing devices suffer from low curing efficiency and yellowing issues. The main reasons are that using short-wavelength (high-energy) or high-intensity ultraviolet light causes yellowing, while using long-wavelength (low-energy) or low-intensity light, or shortening the curing time, results in insufficient curing rate and ghosting. These problems are particularly pronounced in multi-color, multi-material printing curing or multi-ink system printing curing.

[0003] Therefore, the common solution is to modify the ink formulation. For example, by using multiple functional groups to improve curing speed or compatibility. However, this solution will undoubtedly increase the difficulty and cost of ink synthesis, and may also result in problems such as insufficient ink stability or short shelf life.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a photocurable pixel arrangement structure, a photocurable module, and a printing device, which can improve the photocuring effect and avoid problems such as yellowing.

[0006] To achieve the above objectives, a specific embodiment of the present invention provides the following technical solution:

[0007] A photopolymerizable pixel arrangement structure includes an array of first-type sub-pixels, second-type sub-pixels, and third-type sub-pixels.

[0008] in,

[0009] Two third-type sub-pixels aligned in a first direction and two third-type sub-pixels aligned in a second direction constitute a first virtual quadrilateral. The vertex of the first virtual quadrilateral is located at the center of the third-type sub-pixels. The first direction and the second direction are perpendicular.

[0010] Within the first virtual quadrilateral, the number of the third type of sub-pixels is less than the number of the first type of sub-pixels, and the number of the third type of sub-pixels is less than the number of the second type of sub-pixels;

[0011] The first type of sub-pixel has a different wavelength range than the second type of sub-pixel, and the first type of sub-pixel has a different wavelength range than the third type of sub-pixel. At least the first type of sub-pixel emits light in the UVA band.

[0012] In one or more embodiments of the present invention, within the first virtual quadrilateral, the number of the first type of sub-pixels is less than the number of the second type of sub-pixels.

[0013] In one or more embodiments of the present invention, the ratio of the number of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels within the first virtual quadrilateral is 3:4:1.

[0014] In one or more embodiments of the present invention, the first virtual quadrilateral is a rhombus.

[0015] In one or more embodiments of the present invention, the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all rhomboid in shape, and the diagonals of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all parallel to the first direction and / or the second direction.

[0016] In one or more embodiments of the present invention, each of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel can be independently illuminated in a controlled manner.

[0017] In one or more embodiments of the present invention, the wavelength range of the first type of sub-pixels is 320nm-400nm, the wavelength range of the second type of sub-pixels is 200nm-280nm, and the wavelength range of the third type of sub-pixels is 200nm-320nm, or the wavelength range of the third type of sub-pixels is 750nm-1100nm.

[0018] In one or more embodiments of the present invention, within the first virtual quadrilateral, along the first direction, a first type of sub-pixel is disposed between adjacent third type sub-pixels;

[0019] Along the second direction, three first-type sub-pixels are arranged between adjacent third-type sub-pixels;

[0020] The first type of sub-pixel is located in the middle, and four second type of sub-pixels are arranged around it.

[0021] A photopolymerizable pixel arrangement structure includes an array of first-type sub-pixels, second-type sub-pixels, and third-type sub-pixels.

[0022] in,

[0023] Two third-type sub-pixels aligned in the first direction and two third-type sub-pixels aligned in the second direction constitute a second virtual quadrilateral. The vertex of the second virtual quadrilateral is located at the center of the third-type sub-pixels. The first direction and the second direction are perpendicular.

[0024] Within the second virtual quadrilateral, the number of the third type of sub-pixels is less than the number of the first type of sub-pixels, and the number of the third type of sub-pixels is less than the number of the second type of sub-pixels.

[0025] The first type of sub-pixel has a different wavelength range than the second type of sub-pixel, and the first type of sub-pixel has a different wavelength range than the third type of sub-pixel. At least the first type of sub-pixel emits light in the UVA band.

[0026] In one or more embodiments of the present invention, within the second virtual quadrilateral, the number of the first type of sub-pixels is equal to the number of the second type of sub-pixels.

[0027] In one or more embodiments of the present invention, the ratio of the number of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels within the second virtual quadrilateral is 4:4:1.

[0028] In one or more embodiments of the present invention, within the second virtual quadrilateral,

[0029] Along its side length direction, two second-type sub-pixels are arranged between adjacent third-type sub-pixels;

[0030] Along the first direction and / or the second direction, two first-type sub-pixels are disposed between adjacent third-type sub-pixels.

[0031] In one or more embodiments of the present invention, the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels are all quadrilaterals.

[0032] The diagonals of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all parallel to the first direction and / or the second direction.

[0033] In one or more embodiments of the present invention, the side length of the first type of sub-pixels is parallel to the side length of the corresponding second virtual quadrilateral;

[0034] The side lengths of the second type of sub-pixels are all parallel to the side lengths of the corresponding second virtual quadrilaterals;

[0035] The side lengths of the third type of sub-pixels are all parallel to the side lengths of the corresponding second virtual quadrilaterals.

[0036] In one or more embodiments of the present invention, the second virtual quadrilateral is a square.

[0037] In one or more embodiments of the present invention, the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all square in shape.

[0038] In one or more embodiments of the present invention, each of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel can be independently illuminated in a controlled manner.

[0039] In one or more embodiments of the present invention, the wavelength range of the first type of sub-pixels is 320nm-400nm, the wavelength range of the second type of sub-pixels is 200nm-280nm, and the wavelength range of the third type of sub-pixels is 200nm-320nm, or the wavelength range of the third type of sub-pixels is 750nm-1100nm.

[0040] In one or more embodiments of the present invention, one of the first direction and the second direction is a horizontal direction and the other is a vertical direction.

[0041] In one or more embodiments of the present invention, LEDs may be used as the light source.

[0042] A photocurable module includes a substrate on which the above-mentioned photocurable pixel arrangement structure is disposed.

[0043] A printing device comprising the aforementioned photopolymerization module.

[0044] Compared with the prior art, the photocurable pixel arrangement structure, photocurable module and printing equipment of the present invention, by setting multiple sub-pixels with different wavelength ranges, can avoid the curing problem caused by different crosslinking agent responses to different inks due to the use of the same light, and avoid the problem of partial color damage to different color inks caused by the use of the same light, thereby improving the photocuring effect and avoiding yellowing problems.

[0045] The photocurable pixel arrangement structure, photocurable module, and printing equipment of the present invention, through the special array arrangement of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels, balance the differences in beam angle (light emission angle and divergence) and curing effect of multiple sub-pixels in different wavelength ranges, and better match the light coverage range of each type of sub-pixel.

[0046] The photocuring pixel arrangement structure, photocuring module, and printing equipment of the present invention accelerate the photocuring effect by setting a third type of sub-pixel (sub-pixel in the infrared wavelength range) in conjunction with the first type of sub-pixel and the second type of sub-pixel. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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 recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of the photopolymerization pixel arrangement structure in Embodiment 1 of the present invention;

[0049] Figure 2 for Figure 1 A schematic diagram of the first virtual quadrilateral in the photopolymerization pixel arrangement structure shown;

[0050] Figure 3 This is a schematic diagram of the photopolymerization pixel arrangement structure in Embodiment 2 of the present invention;

[0051] Figure 4 for Figure 3 A schematic diagram of the second virtual quadrilateral in the photopolymer pixel arrangement structure shown. Detailed Implementation

[0052] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0053] As mentioned in the background section, existing printing devices' photocuring modules, due to the uniform use of light of the same wavelength for indiscriminate irradiation, suffer from yellowing and low curing rates, resulting in ghosting problems.

[0054] To address the aforementioned technical problems, this invention provides a photocurable pixel arrangement structure, a photocurable module, and a printing device. By setting multiple sub-pixels with different wavelength ranges and arranging them in a special array, the differences in beam angle (light emission angle and divergence) and curing effect of multiple sub-pixels with different wavelength ranges are balanced, thereby better matching the light coverage range of various sub-pixels.

[0055] like Figure 1 As shown, the photopolymerization pixel arrangement structure in Embodiment 1 of the present invention includes a plurality of first-type sub-pixels 10, second-type sub-pixels 20, and third-type sub-pixels 30 arranged in an array. Each of the first-type sub-pixels 10, second-type sub-pixels 20, and third-type sub-pixels 30 can be independently illuminated by control.

[0056] Among them, the first type of sub-pixel 10 and the second type of sub-pixel 20 have different wavelength ranges, and the first type of sub-pixel 10 and the third type of sub-pixel 20 have different wavelength ranges. At least the first type of sub-pixel 10 emits light in the UVA band.

[0057] Preferably, the wavelength range of the first type of sub-pixel 10 is 320nm-400nm, the wavelength range of the second type of sub-pixel 20 is 200nm-280nm, and the wavelength range of the third type of sub-pixel 30 is 200nm-320nm, or the wavelength range of the third type of sub-pixel 30 is 750nm-1100nm.

[0058] In the photopolymerizable pixel arrangement structure formed by the aforementioned first type of sub-pixels 10, second type of sub-pixels 20, and third type of sub-pixels 30, two third type of sub-pixels 30 aligned in the first direction and two third type of sub-pixels 30 aligned in the second direction perpendicular to the first direction constitute a first virtual quadrilateral A. The vertices of the first virtual quadrilateral A are located at the center of the third type of sub-pixels. One of the first direction and the second direction is a horizontal direction, and the other is a vertical direction.

[0059] In this embodiment, the alignment setting can be understood as being located at a diagonal position in the first virtual quadrilateral A formed.

[0060] refer to Figure 2 As shown, within the first virtual quadrilateral A, the number of third-class sub-pixels 30 is less than the number of first-class sub-pixels 10, the number of third-class sub-pixels 30 is less than the number of second-class sub-pixels 20, and the number of first-class sub-pixels 10 is less than the number of second-class sub-pixels 20.

[0061] In a preferred embodiment, within the first virtual quadrilateral A, the ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 is 3:4:1.

[0062] For example, such as Figure 2 As shown, within the first virtual quadrilateral A, in the second direction, three first-class sub-pixels 10 are positioned between two aligned third-class sub-pixels 30. All three first-class sub-pixels 10 are contained within the first virtual quadrilateral A, thus the number of first-class sub-pixels 10 is 3.

[0063] For ease of description, the three first-class sub-pixels 10 are defined here as first first-class sub-pixel 10a, second first-class sub-pixel 10b, and third first-class sub-pixel 10c. The second first-class sub-pixel 10b is located between the first first-class sub-pixel 10a and the third first-class sub-pixel 10c.

[0064] In the first direction, a first type sub-pixel 10 is provided between two third type sub-pixels 30 that are aligned. This second type sub-pixel 10 is the aforementioned second first type sub-pixel 10b.

[0065] Between each of the two third-type sub-pixels 30 in the first direction and the first first-type sub-pixel 10a, a second-type sub-pixel 20 centered within the first virtual quadrilateral A is respectively provided. Similarly, between each of the two third-type sub-pixels 30 and the third first-type sub-pixel 10c, a second-type sub-pixel 20 centered within the first virtual quadrilateral A is also provided. All four second-type sub-pixels 20 are partially contained within the first virtual quadrilateral A, with only a small portion separated from it. However, since the first virtual quadrilateral A also includes a small portion of the other four second-type sub-pixels 20 centered outside the first virtual quadrilateral A when it is divided, such as... Figure 2 The D part in the middle is exactly the same as the part where the four second-type sub-pixels 20 are separated outside the first virtual quadrilateral A. Therefore, it can be understood that within the first virtual quadrilateral A, four complete second-type sub-pixels 20 can be integrated. The number of second-type sub-pixels 20 is 4.

[0066] That is, the second first-class sub-pixel 10b located in the middle is surrounded by four second-class sub-pixels 20.

[0067] Since the vertex of the first virtual quadrilateral A is located at the center of the third type of sub-pixel 30, each of the four third type of sub-pixels 30 is only partially contained within the first virtual quadrilateral A. However, since the sum of the four interior angles of the first virtual quadrilateral A is 360°, the portions of the different third type of sub-pixels 30 contained within the first virtual quadrilateral A can be integrated into a complete third type of sub-pixel 30, and the number of third type of sub-pixels 30 is 1.

[0068] That is, within the first virtual quadrilateral A, the ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 is 3:4:1.

[0069] The ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 can balance the differences in beam angle (light emission angle and divergence) and curing effect of multiple sub-pixels in different wavelength ranges, and better match the light coverage of each type of sub-pixel.

[0070] In the photocurable pixel arrangement structure of the present invention, within any first virtual quadrilateral A formed with the center of the third type of sub-pixel 30 as its vertex, the ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 is 3:4:1. That is, it can be understood that, with the aforementioned first virtual quadrilateral A as a light-emitting unit, the photocurable pixel arrangement structure of the present invention is composed of multiple light-emitting units arranged together.

[0071] In a preferred embodiment, the first virtual quadrilateral A is a rhombus. Two opposite interior angles of the first virtual quadrilateral A are both 60°, and the other two opposite interior angles are both 120°. The shapes of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are also rhombuses, preferably squares, and the diagonals of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are all parallel to the first direction and / or the second direction.

[0072] It is understandable that the shapes of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are also circles or other shapes.

[0073] like Figure 3 As shown, the photopolymerization pixel arrangement structure in Embodiment 2 of the present invention includes a plurality of first-type sub-pixels 10, second-type sub-pixels 20, and third-type sub-pixels 30 arranged in an array. Each of the first-type sub-pixels 10, second-type sub-pixels 20, and third-type sub-pixels 30 can be independently illuminated by control.

[0074] Among them, the first type of sub-pixel 10 and the second type of sub-pixel 20 have different wavelength ranges, and the first type of sub-pixel 10 and the third type of sub-pixel 20 have different wavelength ranges. At least the first type of sub-pixel 10 emits light in the UVA band.

[0075] Preferably, the wavelength range of the first type of sub-pixel 10 is 320nm-400nm, the wavelength range of the second type of sub-pixel 20 is 200nm-280nm, and the wavelength range of the third type of sub-pixel 30 is 200nm-320nm, or the wavelength range of the third type of sub-pixel 30 is 750nm-1100nm.

[0076] LEDs can be selected as the light source.

[0077] In the photopolymerizable pixel arrangement structure formed by the arrangement of the first type of sub-pixels 10, the second type of sub-pixels 20, and the third type of sub-pixels 30, two third type of sub-pixels 30 aligned in the first direction and two third type of sub-pixels 30 aligned in the second direction perpendicular to the first direction constitute a second virtual quadrilateral B. The vertex of the second virtual quadrilateral B is located at the center of the third type of sub-pixels. One of the first direction and the second direction is a horizontal direction, and the other is a vertical direction.

[0078] In this embodiment, the alignment setting can be understood as being located at a diagonal position in the formed second virtual quadrilateral B.

[0079] refer to Figure 4 As shown, within the second virtual quadrilateral B, the number of third-class sub-pixels 30 is less than the number of first-class sub-pixels 10, the number of third-class sub-pixels 30 is less than the number of second-class sub-pixels 20, and the number of first-class sub-pixels 10 is less than the number of second-class sub-pixels 20.

[0080] In a preferred embodiment, within the second virtual quadrilateral B, the ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 is 4:4:1.

[0081] For example, such as Figure 4 As shown, within the second virtual quadrilateral B, in the second direction, two first-type sub-pixels 10 are positioned between two aligned third-type sub-pixels 30. In the first direction, two more first-type sub-pixels 10 are positioned between two aligned third-type sub-pixels 30. All four first-type sub-pixels 10 are contained within the second virtual quadrilateral B, thus the total number of first-type sub-pixels 10 is 4.

[0082] Along the side length of the second virtual quadrilateral B, two second-type sub-pixels 20 are positioned between each of the two third-type sub-pixels 30 located at the endpoints. The centers of these second-type sub-pixels 20 are all located along the side length of the second virtual quadrilateral B, meaning that half of each second-type sub-pixel 20 is contained within the second virtual quadrilateral B. Therefore, it can be understood that four complete second-type sub-pixels 20 can be integrated within the second virtual quadrilateral B, resulting in a total number of four second-type sub-pixels 20.

[0083] Since the vertices of the second virtual quadrilateral B are located at the center of the third type of sub-pixel 30, each of the four third type of sub-pixels 30 is only partially contained within the second virtual quadrilateral B. However, since the sum of the four interior angles of the second virtual quadrilateral B is 360°, the portions of the different third type of sub-pixels 30 contained within the second virtual quadrilateral B are precisely integrated into a complete third type of sub-pixel 30, and the number of third type of sub-pixels 30 is 1.

[0084] That is, within the second virtual quadrilateral B, the ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 is 4:4:1.

[0085] The ratio of the number of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 can balance the differences in beam angle (light emission angle and divergence) and curing effect of multiple sub-pixels in different wavelength ranges, and better match the light coverage of each type of sub-pixel.

[0086] In the photocurable pixel arrangement structure of the present invention, within any second virtual quadrilateral B formed with the center of the third type sub-pixel 30 as its vertex, the ratio of the number of the first type sub-pixel 10, the second type sub-pixel 20, and the third type sub-pixel 30 is 4:4:1. That is, it can be understood that, with the aforementioned second virtual quadrilateral B as a light-emitting unit, the photocurable pixel arrangement structure of the present invention is composed of multiple light-emitting units arranged together.

[0087] In a preferred embodiment, the second virtual quadrilateral B is a quadrilateral. The shapes of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 can all be quadrilaterals; the diagonals of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are all parallel to the first direction and / or the second direction; the side length of the first type of sub-pixel 10 is parallel to the corresponding side length of the second virtual quadrilateral B it belongs to; the side length of the second type of sub-pixel 20 is parallel to the corresponding side length of the second virtual quadrilateral B it belongs to; and the side length of the third type of sub-pixel 30 is parallel to the corresponding side length of the second virtual quadrilateral B it belongs to.

[0088] In a preferred embodiment, the second virtual quadrilateral B can be a square. The shapes of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are also squares.

[0089] It is understandable that the shapes of the first type of sub-pixel 10, the second type of sub-pixel 20, and the third type of sub-pixel 30 are also circles or other shapes.

[0090] Compared with the prior art, the photocurable pixel arrangement structure, photocurable module and printing equipment of the present invention, by setting multiple sub-pixels with different wavelength ranges, can avoid the curing problem caused by different crosslinking agent responses to different inks due to the use of the same light, and avoid the problem of partial color damage to different color inks caused by the use of the same light, thereby improving the photocuring effect and avoiding yellowing problems.

[0091] The photocurable pixel arrangement structure, photocurable module, and printing equipment of the present invention, through the special array arrangement of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels, balance the differences in beam angle (light emission angle and divergence) and curing effect of multiple sub-pixels in different wavelength ranges, and better match the light coverage range of each type of sub-pixel.

[0092] The photocuring pixel arrangement structure, photocuring module, and printing equipment of the present invention accelerate the photocuring effect by setting a third type of sub-pixel (sub-pixel in the infrared wavelength range) in conjunction with the first type of sub-pixel and the second type of sub-pixel.

[0093] The present invention also provides a photocuring module, which includes a substrate on which the above-described photocuring pixel arrangement structure is disposed. The photocuring module and the pixel arrangement structure of the present invention are based on the same concept as described in the application. Therefore, the photocuring module has all the beneficial effects of the pixel arrangement structure in the above embodiments. The similarities can be understood with reference to the explanation of the pixel arrangement structure above, and will not be repeated below.

[0094] Based on the same concept, this invention also provides a printing apparatus that includes the photocuring module described in the above embodiments. Since this printing apparatus and the photocuring module are based on the same concept, the printing apparatus possesses all the beneficial effects of the photocuring module described in the above embodiments. The similarities can be understood by referring to the explanation of the pixel arrangement structure above, and will not be repeated below.

[0095] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0096] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A photopolymerizable pixel arrangement structure, characterized in that, This includes several first-class, second-class, and third-class sub-pixels distributed in an array; in, Two third-type sub-pixels aligned in a first direction and two third-type sub-pixels aligned in a second direction constitute a first virtual quadrilateral. The vertex of the first virtual quadrilateral is located at the center of the third-type sub-pixels. The first direction and the second direction are perpendicular. Within the first virtual quadrilateral, the number of the third type of sub-pixels is less than the number of the first type of sub-pixels, and the number of the third type of sub-pixels is less than the number of the second type of sub-pixels; The first type of sub-pixel has a different wavelength range than the second type of sub-pixel, and the first type of sub-pixel has a different wavelength range than the third type of sub-pixel. At least the first type of sub-pixel emits light in the UVA band.

2. The photopolymerizable pixel arrangement structure according to claim 1, characterized in that, Within the first virtual quadrilateral, the number of the first type of sub-pixels is less than the number of the second type of sub-pixels.

3. The photopolymerizable pixel arrangement structure according to claim 1, characterized in that, Within the first virtual quadrilateral, the ratio of the number of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels is 3:4:

1.

4. The photopolymerizable pixel arrangement structure according to claim 1, characterized in that, The first virtual quadrilateral is a rhombus; and / or, The first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all rhomboid in shape, and the diagonals of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all parallel to the first direction and / or the second direction; and / or, Each of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel can be independently illuminated; and / or, The wavelength range of the first type of sub-pixels is 320nm-400nm, the wavelength range of the second type of sub-pixels is 200nm-280nm, and the wavelength range of the third type of sub-pixels is 200nm-320nm, or the wavelength range of the third type of sub-pixels is 750nm-1100nm.

5. The photopolymerizable pixel arrangement structure according to claim 1, characterized in that, Within the first virtual quadrilateral, Along the first direction, a first type of sub-pixel is disposed between adjacent third type sub-pixels; Along the second direction, three first-type sub-pixels are arranged between adjacent third-type sub-pixels; The first type of sub-pixel is located in the middle, and four second type sub-pixels are arranged around it.

6. A photopolymerizable pixel arrangement structure, characterized in that, This includes several first-class, second-class, and third-class sub-pixels distributed in an array; in, Two third-type sub-pixels aligned in the first direction and two third-type sub-pixels aligned in the second direction constitute a second virtual quadrilateral. The vertex of the second virtual quadrilateral is located at the center of the third-type sub-pixels. The first direction and the second direction are perpendicular. Within the second virtual quadrilateral, the number of the third type of sub-pixels is less than the number of the first type of sub-pixels, and the number of the third type of sub-pixels is less than the number of the second type of sub-pixels. The first type of sub-pixel has a different wavelength range than the second type of sub-pixel, and the first type of sub-pixel has a different wavelength range than the third type of sub-pixel. At least the first type of sub-pixel emits light in the UVA band.

7. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, Within the second virtual quadrilateral, the number of the first type of sub-pixels is equal to the number of the second type of sub-pixels.

8. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, Within the second virtual quadrilateral, the ratio of the number of the first type of sub-pixels, the second type of sub-pixels, and the third type of sub-pixels is 4:4:

1.

9. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, Inside the second virtual quadrilateral, Along its side length direction, two second-type sub-pixels are arranged between adjacent third-type sub-pixels; Along the first direction and / or the second direction, two first-type sub-pixels are disposed between adjacent third-type sub-pixels.

10. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, The shapes of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all quadrilaterals; The diagonals of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all parallel to the first direction and / or the second direction.

11. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, The side lengths of the first type of sub-pixels are all parallel to the side lengths of the corresponding second virtual quadrilaterals; The side lengths of the second type of sub-pixels are all parallel to the side lengths of the corresponding second virtual quadrilaterals; The side lengths of the third type of sub-pixels are all parallel to the side lengths of the corresponding second virtual quadrilaterals.

12. The photopolymerizable pixel arrangement structure according to claim 6, characterized in that, The second virtual quadrilateral is a square; and / or, The first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel are all square in shape; and / or, Each of the first type of sub-pixel, the second type of sub-pixel, and the third type of sub-pixel can be independently illuminated; and / or, The wavelength range of the first type of sub-pixels is 320nm-400nm, the wavelength range of the second type of sub-pixels is 200nm-280nm, and the wavelength range of the third type of sub-pixels is 200nm-320nm, or the wavelength range of the third type of sub-pixels is 750nm-1100nm.

13. A photocurable module, characterized in that, It includes a substrate on which a photocurable pixel arrangement structure as described in any one of claims 1-5 or 6-12 is disposed.

14. A printing device, characterized in that, Includes the photocuring module as described in claim 13.

Images