Printed matter, display device, solar cell, and solar cell system

Abstract

The printed matter includes: a printed layer having an ink portion formed of ink for printing and having a plurality of hole portions formed therein through which light passes; and a base material having a printed layer printed on the surface thereof, and each of the plurality of hole portions is configured from fine holes that are difficult to be visually recognized by the naked eye.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202480038298.7 (22) Application Date 2024.11.21 (85) PCT International Application Entering National Phase Date 2025.12.08 (86) PCT International Application Application Data PCT / JP2024 / 041236 2024.11.21 (87) PCT International Application Publication Data WO2026 / 110277 JA 2026.05.28 (71) Applicant: Hideaki Co., Ltd. Address: Japan (72) Inventor: Koji Muraoka (74) Patent Agency: China Council for the Promotion of International Trade Patent & Trademark Office Co., Ltd. 11038 Patent Attorney: Hui Han (51) Int.Cl. G09F 13 / 04 (2006.01) B32B 7 / 023(2006.01) B41M 3 / 00(2006.01) (54) Invention Title: Printed Material, Display Device, Solar Cell and Solar Cell System (57) Abstract: The printed material comprises: a printed layer having ink portions composed of printed ink and forming a plurality of apertures for light to pass through; and a substrate having the printed layer printed on its surface, wherein the plurality of apertures are each composed of micropores that are difficult to be visually identified by the naked eye. Claims: 3 pages Description: 16 pages Drawings: 19 pages CN 122439201 A 2026.07.21 CN 1 22 43 92 01 A 1. A printed material, wherein the printed material comprises: a printed layer having ink portions composed of printed ink and forming a plurality of apertures for light to pass through; and a substrate having the printed layer printed on its surface, wherein the plurality of apertures are each composed of micropores that are difficult to be visually identified by the naked eye. 2. The printed material according to claim 1, wherein each of the plurality of holes has a diameter of 2 micrometers or more and 10 micrometers or less. 3. The printed material according to claim 1, wherein each of the plurality of holes has a diameter of 5 micrometers or more and 100 micrometers or less. 4. The printed material according to any one of claims 1 to 3, wherein the ink portion is composed of an ink having light-blocking properties that prevent light transmission. 5. The printed material according to any one of claims 1 to 4, wherein, when the side of the printed layer that is observed by the user is designated as the surface side and the back side of the surface side is designated as the back side side, the printed layer has a display portion on the surface side constituting a portion for displaying text, graphics, symbols, or images, the display portion being composed of an assembly of the plurality of holes, displaying text, graphics, symbols, or images by light transmitted through the plurality of holes from the back side side, the substrate being a light-transmitting transparent component, and being a transparent substrate on which the printed layer is printed.6. The printed matter according to claim 5, wherein the number of holes forming portions of the display portion is greater than the number of holes not forming the display portion. 7. The printed matter according to claim 5 or 6, wherein the printing layer is patterned by the ink portions, and the display portion is displayed by light passing through the plurality of holes from the back side, such that light passes through the pattern and appears on the pattern; when light does not pass through the plurality of holes from the back side, the pattern is not displayed on the pattern, thus maintaining the appearance of the pattern. 8. The printed matter according to claim 5, wherein the printed matter further comprises a display printing layer having a plurality of light-shielding ink portions formed by light-shielding ink having light-blocking properties, the printing layer and the display printing layer are configured in a stacked state, the printing layer is disposed on the surface side, and the display printing layer is disposed on the back side relative to the printing layer; in the stacking direction of the printing layer and the display printing layer, the plurality of light-shielding ink portions are arranged facing the ink portions of the printing layer. 9. The printed matter according to claim 8, wherein the plurality of light-shielding ink portions are arranged along the outer edge of the display portion in the stacking direction of the printed layer and the display printed layer. 10. The printed matter according to claim 5, wherein the printed matter further comprises a display printed layer having a plurality of light-transmitting ink portions composed of light-transmitting ink, wherein the plurality of light-transmitting ink portions are composed of at least one color ink, the printed layer and the display printed layer are configured in a stacked state, the printed layer is disposed on the surface side, and the display printed layer is disposed on the back side relative to the printed layer, wherein in the stacking direction of the printed layer and the display printed layer, the plurality of light-transmitting ink portions are located in the portion facing the display portion. 11. The printed matter according to claim 5, wherein the printed matter further comprises a display printing layer, the display printing layer having a plurality of light-transmitting ink portions made of light-transmitting ink and a plurality of light-shielding ink portions made of light-blocking ink, the plurality of light-transmitting ink portions being composed of at least one color ink, the printing layer and the display printing layer being configured in a stacked state, the printing layer being disposed on the surface side, the display printing layer being disposed on the back side relative to the printing layer, and in the stacking direction of the printing layer and the display printing layer, the plurality of light-shielding ink portions being disposed facing the ink portions of the printing layer, and the plurality of light-transmitting ink portions being disposed in the portion facing the display portion. 12. The printed matter according to claim 11, wherein the plurality of light-shielding ink portions are disposed along the outer edge of the display portion in the stacking direction of the printing layer and the display printing layer.13. The printed matter according to any one of claims 8 to 12, wherein the display printing layer is disposed on the opposite side of the printing layer, separated from the substrate. 14. The printed matter according to any one of claims 8 to 12, wherein the display printing layer is disposed between the printing layer and the substrate. 15. A display device, comprising: the printed matter according to any one of claims 6 to 14; and a light-emitting device disposed on the back side of the printed matter, the printed matter constituting a display panel, displaying text, graphics, symbols, or images on the display section by light emitted by the light-emitting device and transmitted through the plurality of apertures from the back side. 16. A solar cell, the solar cell being the printed matter according to any one of claims 1 to 4, wherein the substrate includes a power-generating layer, the power-generating layer being stacked with the printing layer, generating electricity by light transmitted through the plurality of apertures in the printing layer, the printing layer being printed on the light-receiving side of the power-generating layer. 17. The solar cell according to claim 16, wherein the printing layer and the power-generating layer constitute part of a perovskite solar cell. 18. The solar cell according to claim 16 or 17, wherein the printed layer is a layer with a light transmittance of 60% or more and 90% or less. 19. The solar cell according to any one of claims 16 to 18, wherein the substrate is formed of a thin-film member having a flexible thin film shape. Claims 2 / 3 pages 3 CN 122439201 A 20. A solar cell system, wherein the solar cell system comprises: a printed material according to any one of claims 1 to 4, the printed material being disposed on a light-receiving side; and a solar cell, the solar cell being disposed facing the printed material and generating electricity by light transmitted through the plurality of apertures in the printed material, the substrate being a transparent substrate having a light-transmitting transparent member and the printed layer printed on its surface. Claims 3 / 3 pages 4 CN 122439201 A Printed Material, Display Device, Solar Cell and Solar Cell System Technical Field

[0001] This disclosure relates to printed materials, display devices using the printed materials, solar cells using the printed materials, and solar cell systems using the printed materials. Background Art

[0002] Conventionally, for applying various designs such as text, graphics, patterns, and colors to articles, methods are known to apply the designs by forming a film on the surface of a substrate through methods such as coating or printing. For example, to give a sense of luxury, dashboards with wood grain patterns are sometimes used in the dashboards of automobile interiors. For manufacturing materials with wood grain patterns, methods using coating have been disclosed (for example, see Patent Document 1).In addition, a printing method has been disclosed for manufacturing materials with wood grain patterns (for example, see Patent Document 2).

[0003] Prior Art Documents

[0004] Patent Documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2013-158746

[0006] Patent Document 2: Japanese Patent Application Publication No. 2000-185455 Summary of the Invention

[0007] Problems to be Solved by the Invention

[0008] In the coated material of Patent Document 1 and the printed material of Patent Document 2, the surface of the substrate is covered by a coating or ink, etc., which suppresses the transmission of light. Therefore, for example, in order to display visual information on the dashboard to provide various information about the car, it is necessary to provide an information display part such as a display or LED display part in addition to the wood grain pattern part. From a design or cost point of view, it is sometimes desirable to display visual information directly on the dashboard, etc., with wood grain patterns applied. Therefore, the light emitted from the light-emitting device provided on the back side of the dashboard, etc., needs to pass through the decorative layer forming the wood grain pattern, etc., to reach the user's eyes.

[0009] In addition, sometimes a coating is formed on the surface of a substrate by methods such as coating or printing to impart various functions such as design or waterproofing. For example, in order to impart various functions such as design or waterproofing, a decorative layer is sometimes formed on the surface side of a solar cell facing the light source by coating. If the entire solar cell is covered by the decorative layer and the light is suppressed, the function of the solar cell is reduced. Even when a decorative layer is formed on the surface side of the solar cell, it is necessary for light to pass through the decorative layer to reach the solar cell. That is, sometimes even when a decorative layer is formed to impart design or various functions to an article, it is desirable for light to pass through the decorative layer.

[0010] The present disclosure solves the above-mentioned problems, and its object is to provide a printed matter, display device, solar cell, and solar cell system that allows light to pass through the printed layer even when a decorative layer is formed from a printed layer to impart design or various functions.

[0011] Solution to the Problem

[0012] The printed matter of this disclosure includes: a printed layer having ink portions composed of printed ink and forming a plurality of apertures for light to pass through; and a substrate having the printed layer printed on its surface, wherein the plurality of apertures are each composed of micro-pores that are difficult to be visually identified by the naked eye.

[0013] The display device of this disclosure includes: a printed matter with the above structure; and a light-emitting device disposed on the back side of the printed matter, wherein the printed matter constitutes a display panel, and text, graphics, symbols or images are displayed on the display panel by light emitted by the light-emitting device and light transmitted through the plurality of apertures from the back side.

[0014] The solar cell of this disclosure is a printed matter with the above structure, wherein the substrate includes a power-generating layer, the power-generating layer being stacked with the printed layer, and power generation is performed by light transmitted through the plurality of apertures in the printed layer, wherein the printed layer is printed on the light-receiving side of the power-generating layer.

[0015] The solar cell system of this disclosure includes: a printed material with the above-described structure, the printed material being disposed on a light-receiving side; and a solar cell, the solar cell being disposed facing the printed material, generating electricity by transmitting light through a plurality of holes in the printed material, the substrate being a transparent substrate composed of a light-transmitting transparent component and having a printed layer printed on its surface.

[0016] Effects of the Invention

[0017] According to this disclosure, the printed material includes: a printed layer having ink portions composed of printed ink, forming a plurality of holes for light to pass through; and a substrate having the printed layer printed on its surface. The plurality of holes are each composed of micro-pores that are difficult to be visually identified by the naked eye. Even if the printed material is used to form a decorative layer from the ink portions of the printed layer for design or various functions, light can still pass through the printed layer through the plurality of holes. Brief Description of the Drawings

[0018] FIG1 is a top view showing an example of the printed material of Embodiment 1.

[0019] FIG2 is a conceptual diagram showing an example of a cross-section of the printed material of Embodiment 1.

[0020] FIG3 is a partial enlarged view of an example of an enlarged view of part A of FIG1 in the printed material of Embodiment 1.

[0021] FIG4 is a cross-sectional view along line B-B of FIG3.

[0022] FIG5 is a partial enlarged view of another example of an enlarged view of part A of FIG1 in the printed material of Embodiment 1.

[0023] FIG6 is a cross-sectional view along line B-B of FIG5.

[0024] FIG7 is a partial enlarged view of a comparative example printed material.

[0025] FIG8 is a top view of an example of a printed material of Embodiment 2.

[0026] FIG9 is a conceptual diagram of an example of an enlarged cross-section of the display section of the printed material of Embodiment 2.

[0027] FIG10 is an enlarged conceptual diagram of part E shown in FIG8 of the printed material of Embodiment 2.

[0028] FIG11 is an enlarged conceptual diagram of another example of part E shown in FIG8 of the printed material of Embodiment 2.

[0029] FIG12 is a conceptual diagram of an example of a display device using the printed material of Embodiment 2.

[0030] FIG13 is a conceptual diagram showing an example of an enlarged cross-section of the printed material of Embodiment 3.

[0031] FIG14 is a conceptual diagram showing the relationship between the light-blocking ink portion and the display portion as viewed in the lamination direction of the printed material of Embodiment 3.

[0032] FIG15 is a conceptual diagram showing another example of an enlarged cross-section of the printed material of Embodiment 3.

[0033] FIG16 is a conceptual diagram showing an example of a display device using the printed material of Embodiment 3.

[0034] FIG17 is a conceptual diagram showing an example of an enlarged cross-section of the printed material of Embodiment 4.

[0035] FIG18 is a conceptual diagram showing another example of an enlarged cross-section of the printed material of Embodiment 4.

[0036] FIG19 is a conceptual diagram showing yet another example of an enlarged cross-section of the printed material of Embodiment 4.

[0037] FIG20 is a conceptual diagram showing another example of an enlarged cross-section of the printed material of Embodiment 4.

[0038] FIG21 is a conceptual diagram showing an example of a display device using the printed material of Embodiment 4.

[0039] FIG22 is a conceptual diagram showing an example of an enlarged cross-section of the printed material of Embodiment 5.

[0040] FIG23 is a conceptual diagram showing another example of an enlarged cross-section of the printed material of Embodiment 5.

[0041] FIG24 is a conceptual diagram showing an example of a display device using the printed material of Embodiment 5. Specification 2 / 16 pages 6 CN 122439201 A

[0042] FIG25 is an exploded conceptual diagram showing an example of a solar cell of Embodiment 6.

[0043] FIG26 is a conceptual diagram showing an example of an enlarged cross-section of the solar cell of Embodiment 6.

[0044] FIG27 is an exploded conceptual diagram showing an example of a solar cell system of Embodiment 7.

[0045] FIG28 is a conceptual diagram showing an example of an enlarged cross-section of a solar cell system of Embodiment 7. Detailed Description of Embodiments

[0046] Hereinafter, the printed matter, display device, solar cell, and solar cell system of the embodiments will be described with reference to the accompanying drawings. In addition, in the following drawings, including FIG1, the relative dimensional relationships and shapes of the constituent components may sometimes differ from the actual situation. In addition, in the following drawings, structures marked with the same reference numerals are the same or equivalent structures, which is common throughout the specification. In addition, for ease of understanding, terms indicating direction (e.g., up, down, left, right, front, back, surface, and back, etc.) are appropriately used. These expressions are for ease of description and do not limit the arrangement, direction, or orientation of the device, appliance, or component.

[0047] Embodiment 1

[0048] [Printed Matter 100]

[0049] FIG1 is a top view showing an example of the printed matter 100 of Embodiment 1. FIG2 is a conceptual diagram showing an example of the cross-section of the printed matter 100 of Embodiment 1. As shown in FIG1, the printed matter 100 is an article on which printing is applied to the surface.

[0050] The printed material 100 can be, for example, a car dashboard or a solar cell, but it is not limited to any article on which printing is performed. Furthermore, by performing printing, the appearance and texture of the article can be changed, for example, by adding design or functional value to the outside of the article.

[0051] As shown in FIG2, the printed material 100 of Embodiment 1 includes a printing layer 110 and a substrate 120. Furthermore, in FIG2, the printing layer 110 is composed of a single layer, but the printing layer 110 may also be composed of multiple layers. The printed material 100, through the ink portions 111 described later in the printing layer 110, forms a decorative layer on which various designs such as text, graphics, patterns, images, and color separations are applied.In addition, the printed material 100 can also be configured with a decorative layer that provides various functions such as water resistance, hydrophobicity, stain resistance, antibacterial properties, or rust prevention through the ink portion 111 described later in the printed layer 110.

[0052] FIG3 is a partial enlarged view of an example of an enlarged view of part A in FIG1 of the printed material 100 of Embodiment 1. FIG4 is a cross-sectional view along line B-B of FIG3. FIG5 is a partial enlarged view of another example of an enlarged view of part A in FIG1 of the printed material 100 of Embodiment 1. FIG6 is a cross-sectional view along line B-B of FIG5. Furthermore, part A is a portion defined to illustrate the enlarged form of the printed layer 110, and the position of part A is not limited to the position shown in the figure, and may be other positions.

[0053] As shown in FIGS. 3 to 6, the printed layer 110 has an ink portion 111 composed of printed ink and has a plurality of holes 112 through which light passes. The printed layer 110 includes the ink portion 111 and the plurality of holes 112.

[0054] The ink portion 111 is the portion of the printed layer 110 in which ink is disposed. The ink portion 111 is, for example, a halftone dot. The ink portion 111 is the portion formed by placing printed ink on the substrate 120. The ink portion 111 is the portion in which an ink film is formed relative to the substrate 120. The halftone dots of the ink portion 111 are arranged irregularly, for example, in the printed matter 100. The halftone dots of the ink portion 111 may also be arranged regularly in the printed matter 100, but it is preferred that they are arranged irregularly.

[0055] The ink portion 111 and the printed layer 110 are formed by printing. As shown in FIG3, the ink portion 111 can be formed by so-called full-page printing. Full-page printing is printing in which a predetermined printing area of ​​the printed surface of the printed matter 100 is filled with ink without gaps. As shown in FIG5, the ink portion 111 can also be formed by so-called halftone dot-like granular printing. The ink portion 111 can also be formed by ink that suppresses the transmission of light. The ink portion 111 may also be composed of light-blocking ink that is opaque to light. The ink portion 111 is printed directly or indirectly on the substrate 120. Specification 3 / 16 page 7 CN 122439201 A

[0056] The printing layer 110 forms a pattern through the ink portion 111. The printing layer 110 forms a pattern through the halftone representation of the ink portion 111. In addition, halftone refers to a network of dots used to represent the depth of the printed matter. For example, the printing layer 110 forms a wood grain pattern through the ink portion 111. The printing layer 110 may also form various designs such as text, graphics, colors, and patterns through the ink portion 111.

[0057] The plurality of holes 112 are holes that penetrate the printing layer 110. Even if the printing layer 110 includes multiple layers, the plurality of holes 112 are holes that penetrate multiple layers. The plurality of holes 112 are each composed of tiny holes that are difficult to be visually identified by the naked eye. The plurality of holes 112 are, for example, holes with a diameter D of 2 micrometers or more and 10 micrometers or less. Alternatively, the plurality of holes 112 are, for example, holes with a diameter D of 5 micrometers or more and 100 micrometers or less.The holes 112 are preferably formed in the printing layer 110 in a way that the shallower printing portion is formed in the deeper printing portion.

[0058] The plurality of holes 112 can be configured as dots as shown in FIG3, or as gaps between ink portions 111 as shown in FIG4. In addition, the configuration of ink portions 111 and holes 112 shown in FIG3 and FIG4 is an example and is not limited to the illustrated arrangement.

[0059] The substrate 120 is a component on which the printing layer 110 is printed. The substrate 120 is printed directly or indirectly by ink portions 111. As shown in FIG4, the substrate 120 of Embodiment 1 is a transparent component that transmits light and is a transparent substrate on which the printing layer 110 is printed. The substrate 120 of Embodiment 1 is, for example, a synthetic resin or glass, but is not limited to this material.

[0060] The substrate 120 can be a plate-shaped component or a film-shaped component such as a film. In addition, the substrate 120 can be not only a planar component, but also a three-dimensional curved component. The white arrows in Figures 4 and 6 indicate the transmission of light. As shown in Figures 4 and 6, light passes through the printed layer 110 through the plurality of apertures 112.

[0061] As shown in Figures 4 and 6, light from the surface side of the printed material 100 toward the printed material 100 can pass through the plurality of apertures 112, pass through the substrate 120, and illuminate the back side of the printed material 100. In addition, as shown in Figures 4 and 6, light from the back side of the printed material 100 toward the printed material 100 can pass through the substrate 120, pass through the plurality of apertures 112, and illuminate the surface side of the printed material 100.

[0062] Light passes through the plurality of apertures 112, passes through the printed layer 110, passes through the substrate 120, and passes through the printed material 100. That is, the printed material 100 can allow light to pass through portions of the plurality of apertures 112 in the printed layer 110.

[0063] Furthermore, the layers constituting the printed material 100 are not limited to the printed layer 110 and the substrate 120. For example, a protective layer made of a transparent material may be provided above the printed layer 110 to protect the printed layer 110.

[0064] FIG7 is a partial enlarged view of the printed material 100L of the comparative example. In general printed materials, as shown in the printed material 100L of the comparative example, the halftone dots of the ink portions 111L are arranged neatly in both the longitudinal and transverse directions. In contrast, in the printed material 100 of Embodiment 1, the halftone dots of the ink portions 111 are arranged irregularly. The printed material 100 can prevent moiré patterns by arranging the halftone dots of the ink portions 111 irregularly. Moiré patterns refer to stripe-like patterns produced when geometrically regularly distributed patterns of dots or lines are superimposed.

[0065] [Effects of the printed material]

[0066] The printed material 100 includes: a printing layer 110 having an ink portion 111 composed of printed ink and forming a plurality of holes 112 for light to pass through; and a substrate 120 having the printing layer 110 printed on its surface.Each of the multiple apertures 112 is composed of tiny holes that are difficult to see with the naked eye. Even when the printed material 100 is decorated with an ink portion 111 of the printing layer 110 for design or various functions, light can still pass through the printing layer 110 through the multiple apertures 112. In addition, when the substrate 120 is composed of a transparent component that allows light to pass through, light passes through the multiple apertures 112 of the printing layer 110 and the substrate 120, passing through the printed material 100 from the surface side to the back side or from the back side to the surface side.

[0067] Furthermore, in the printed material 100, each of the multiple apertures 112 is composed of tiny holes that are difficult to see with the naked eye. Therefore, the presence of the multiple apertures 112 cannot be detected in the printed material 100 when light does not pass through the printing layer 110, making the presence of the ink portion 111 of the printing layer 110 more visible. When the ink portion 111 of the printing layer 110 forms a decorative layer for imparting design or various functions, the printed material 100 cannot identify the presence of the multiple holes 112 when light does not penetrate the printing layer 110. Therefore, the decorative layer formed by the ink portion 111 is visible on the printed material 100 when light does not penetrate the printing layer 110.

[0068] The multiple holes 112 are holes with a diameter D of 2 micrometers or more and 10 micrometers or less. Alternatively, the multiple holes 112 are holes with a diameter D of 5 micrometers or more and 100 micrometers or less. The multiple holes 112 are difficult to be visually identified by the naked eye because they are formed with such a small opening diameter. Furthermore, when the multiple holes 112 are holes with a diameter D of 2 micrometers or more and 10 micrometers or less, they are even more difficult to be visually identified by the naked eye than when the diameter D is 5 micrometers or more and 100 micrometers or less. With this structure, even if the printed material 100 forms a decorative layer from the ink portion 111 of the printing layer 110 to impart design or various functions, light can still pass through the printing layer 110 through the multiple apertures 112.

[0069] The ink portion 111 may also be made of light-blocking ink that is opaque to light. When the ink portion 111 is made of light-blocking ink that is opaque to light, the printed material 100 can block light in the ink portion 111 and allow light to pass through in the apertures 112. Therefore, it is possible to clearly distinguish between the portion that is intended to allow light to pass through and the portion that is intended to allow light to pass through.

[0070] Embodiment 2

[0071] FIG8 is a top view showing an example of the printed material 100 of Embodiment 2. FIG9 is a conceptual diagram showing an example of an enlarged cross-section of the display portion 210 of the printed material 100 of Embodiment 2. For constituent elements that have the same function and effect as the printed material 100 of Embodiment 1, the same reference numerals are used and their descriptions are omitted. In addition, the white arrows shown in FIG9 indicate light passing through the apertures 112.Hereinafter, the structure of Embodiment 2 will be described with reference to the differences from Embodiment 1, using Figures 8 to 9, etc. Furthermore, structures not described in Embodiment 2 are the same as those in Embodiment 1.

[0072] The printed material 100 of Embodiment 2 has a display section 210. Hereinafter, the display section 210 will be described. As shown in Figure 9, when the side of the printing layer 110 that the user observes is designated as the surface side and the back side of the surface side is designated as the back side side, as shown in Figure 8, the printing layer 110 has a display section 210 on the surface side that constitutes a portion for displaying text, graphics, symbols, or images. The display section 210 is composed of a plurality of apertures 112, and text, graphics, symbols, or images are displayed by light passing through the plurality of apertures 112 from the back side side.

[0073] The display section 210 is, for example, a portion for displaying information. As shown in Figure 8, the display section 210 has, for example, a first display section 211 for displaying text, a second display section 212 for displaying graphics, a third display section 213 for displaying symbols or images, etc. The text includes numbers, and the graphics include, for example, patterns or designs. There may be one or more display units 210.

[0074] In FIG8, an example of text, graphics, symbols, or images is shown through the first display unit 211, the second display unit 212, and the third display unit 213, but the displayed content is not limited to the example shown. For example, the first display unit 211 may also be composed of multiple characters, or it may be composed of Chinese characters or numbers. For example, as shown in FIG8, the third display unit 213 may be a weather-related symbol or image, or it may be car-related information, etc.

[0075] Furthermore, in FIG8, the first display unit 211, the second display unit 212, and the third display unit 213 are shown for the purpose of explaining the display unit 210, but the display unit 210 may also be composed of any one or more of the first display unit 211, the second display unit 212, and the third display unit 213. Alternatively, the display section 210 may consist of multiple of any one or more of the first display section 211, the second display section 212, and the third display section 213.

[0076] FIG10 is an enlarged conceptual diagram of section E shown in FIG8 of the printed matter 100 of Embodiment 2. FIG11 is an enlarged conceptual diagram of another example of section E shown in FIG8 of the printed matter 100 of Embodiment 2. As shown in FIG10, the number of holes formed in the portion constituting the display section 210 is greater than that in the portion not constituting the display section 210. In FIG10, multiple holes 112 are also formed in the portion not constituting the display section 210, but the portion not constituting the display section 210 may also be formed by ink section 111 through so-called full-page printing without holes 112. The multiple holes 112 may be arranged irregularly as shown in FIG10, or they may be arranged regularly in both directions as shown in FIG11.Instruction manual 5 / 16 pages 9 CN 122439201 A

[0077] As shown in Figures 1 and 8, the printing layer 110 is formed by ink portions 111 to create a pattern. The pattern is, for example, a wood grain pattern as shown in Figures 1 and 8, but is not limited to a wood grain pattern. In addition, the pattern includes a design. The display portion 210 is displayed by light passing through the plurality of holes 112 from the back side as shown in Figure 9, and as shown in Figure 8, the light passes through the pattern and appears on the pattern. When the light does not pass through the plurality of holes 112 from the back side, the display portion 210 does not appear on the pattern as shown in Figure 1, but maintains the appearance of the pattern.

[0078] As shown in Figure 9, the substrate 120 of Embodiment 2 is a transparent component that is light-transmitting, and is a transparent substrate on which the printing layer 110 is printed. The substrate 120 of Embodiment 2 is, for example, a synthetic resin or glass, but is not limited to this material. The substrate 120 can be a plate-shaped component or a film-shaped component such as a film. Furthermore, the substrate 120 can be not only a planar component, but also a three-dimensional curved component. The white arrows shown in FIG9 indicate the transmission of light. As shown in FIG9, light passes through the printing layer 110 through the plurality of holes 112.

[0079] As shown in FIG9, light from the back side of the printed material 100 toward the printed material 100 can pass through the substrate 120, pass through the plurality of holes 112 respectively, and illuminate the surface side of the printed material 100. Light passes through the substrate 120, passes through the plurality of holes 112, passes through the printing layer 110, and passes through the printed material 100. That is, the printed material 100 can allow light to pass through portions of the plurality of holes 112 in the printing layer 110.

[0080] FIG12 is a conceptual diagram showing an example of a display device 500 using the printed material 100 of Embodiment 2. The display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and text, graphics, symbols, or images are displayed on the display section 210 by light emitted from the light-emitting device 400 and light passing through multiple apertures 112 from the back side.

[0081] The light-emitting device 400 constitutes a light-emitting part in the display device 500. The light-emitting device 400 is in a light-emitting state by being set to an on state and in a non-light-emitting state by being set to an off state. When light is emitted from the light-emitting device 400, light passes through the multiple apertures 112 of the printed material 100 and light passes through the printing layer 110. When light is not emitted from the light-emitting device 400, light does not pass through the multiple apertures 112 of the printed material 100 and light does not pass through the printing layer 110.

[0082] When the light-emitting device 400 emits light, the display section 210 is made to appear on the surface of the printed material 100 by the light passing through the multiple apertures 112. When the light-emitting device 400 is not emitting light, light does not pass through the multiple holes 112, and the display unit 210 does not appear on the surface of the printed material 100.

[0083] The light-emitting device 400 includes, for example, a light source substrate 410 and a light-emitting element 420 that serves as a light source. As an example, the light source substrate 410 is a substrate formed in a plate shape and on which the light-emitting element 420 is mounted. The light source substrate 410 is configured with a light source circuit including the light-emitting element 420.

[0084] The light-emitting element 420 is, for example, an LED (Light Emitting Diode). The light-emitting device 400 is, for example, a COB (Chip On Board)-LED (Light Emitting Diode). Furthermore, the light-emitting device 400 shown in FIG12 is a conceptual illustration, and the number and arrangement of the light-emitting elements 420 are not limited to the number and arrangement shown in the illustration.

[0085] Furthermore, the light-emitting element 420 may also be a solid-state light-emitting element other than an LED, such as an organic EL (Electro-Luminescence) or a laser. In addition, the light-emitting device 400 is any device that emits light, such as a device using a light bulb, and is not limited to a device on which an LED is mounted.

[0086] The light-emitting device 400 or the light-emitting element 420 may also be respectively provided in the first display unit 211, the second display unit 212, and the third display unit 213 (see FIG8). When multiple display units 210 are provided, the light-emitting device 400 or the light-emitting element 420 may also be provided for each display unit 210.

[0087] The display device 500 displays the display unit 210 by light passing through the multiple apertures 112 from the back side as shown in FIG9, and in a manner shown in FIG8 by light passing through the pattern so that the display unit 210 appears on the pattern. When light does not pass through the multiple apertures 112 from the back side, as shown in FIG1, the display unit 210 does not display the pattern and maintains the appearance of the pattern of the printed layer 110.

[0088] [Effects of Printed Material] Specification 6 / 16 pages 10 CN 122439201 A

[0089] As shown in FIG8, the printed layer 110 of the printed material 100 of Embodiment 2 has a display portion 210 on the surface side that constitutes a portion for displaying text, graphics, symbols, or images. The display portion 210 is composed of a plurality of holes 112, and displays text, graphics, symbols, or images by light passing through the plurality of holes 112 from the back side. The substrate 120 is a transparent component that allows light to pass through, and is a transparent substrate on which the printed layer 110 is printed. The presence of the display portion 210 cannot be detected in the printed material 100 when light does not pass through the printed layer 110. Therefore, the design of the decorative layer formed by the ink portion 111 can be made obvious in the printed material 100 when light does not pass through the printed layer 110. The presence of the display portion 210 can be detected in the printed material 100 when light passes through the printed layer 110 via the plurality of holes 112.Therefore, the printed material 100 can display the display content of the display unit 210 when light passes through the printing layer 110, for example, it can transmit information formed by the display content of the display unit 210.

[0090] In addition, the number of holes 112 constituting the display unit 210 is greater than the number of holes not constituting the display unit 210. With this structure, the printed material 100 can make the brightness difference between the display unit 210 and the parts other than the display unit 210 obvious, and can make the display of the display unit 210 clear.

[0091] In addition, the display unit 210 is displayed by light passing through the multiple holes 112 from the back side, so that the light passes through the pattern of the printing layer 110 and floats on the pattern of the printing layer 110. When light does not pass through the multiple holes 112 from the back side, the display unit 210 is not displayed on the pattern of the printing layer 110 and maintains the appearance of the pattern of the printing layer 110. With this structure, the presence of the display section 210 can be identified on the printed material 100 when light passes through the printing layer 110 via the multiple apertures 112. With this structure, the design of the decorative layer formed by the ink section 111 can be made visible on the printed material 100 when light does not pass through the printing layer 110.

[0092] With this structure, the display of the display section 210 can be made to appear on the pattern formed by the printing layer 110 when light passes through the printed material 100, allowing the viewer of the printed material 100 to identify the presence of the display section 210. In addition, with this structure, the display section 210 is not displayed on the printing layer 110 when light does not pass through the printing layer 110, so that the viewer of the printed material 100 will not be aware of the presence of the display section 210. That is, the presence or absence of light passing through the multiple apertures 112 on the printed material 100 can switch between allowing the viewer of the printed material 100 to identify the presence of the display section 210 and not to identify the presence of the display section 210.

[0093] Furthermore, the display device 500 includes a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and text, graphics, symbols, or images are displayed on the display section 210 by light emitted from the light-emitting device 400 and transmitted through multiple apertures 112 from the back side. With this structure, the display device 500 can identify the presence of the display section 210 of the printed material 100 when light emitted from the light-emitting device 400 passes through the printing layer 110 via the multiple apertures 112. With this structure, the display device 500 can make the design of the decorative layer formed by the ink portion 111 of the printed material 100 visible when no light is emitted from the light-emitting device 400 and no light passes through the printing layer 110 of the printed material 100.

[0094] With this structure, the display device 500 can make the display of the display section 210 float on the pattern formed by the printing layer 110 of the printed material 100 by allowing light emitted from the light-emitting device 400 to pass through the printing layer 110.Therefore, the display device 500 can make the presence of the display section 210 known to the viewer of the printed matter 100 by emitting light from the light-emitting device 400. Furthermore, with this structure, the display device 500, in a state where it does not emit light from the light-emitting device 400 and light does not pass through the printing layer 110, does not display the printing layer 110 on the display section 210, thus preventing the viewer of the printed matter 100 from becoming aware of the presence of the display section 210. The display device 500 can make the design of the decorative layer formed by the ink portion 111 of the printed matter 100 clearly visible without the viewer of the printed matter 100 becoming aware of the presence of the display section 210.

[0095] The display device 500, by turning on the light-emitting device 400 and transmitting light through the printed matter 100, can make the presence of the display section 210 known to the viewer of the printed matter 100. Furthermore, the display device 500, by turning off the light-emitting device 400 and not transmitting light through the printed matter 100, can prevent the viewer of the printed matter 100 from recognizing the presence of the display section 210. That is, the display device 500 can switch the presence or absence of the display section 210 by switching the light-emitting device 400 on or off. Specification 7 / 16 pages 11 CN 122439201 A

[0096] The ink section 111 may also be made of light-blocking ink. When the ink section 111 is made of light-blocking ink, the boundary between the ink section 111 and the plurality of holes 112 becomes obvious in the printed matter 100. With the arrangement of the plurality of holes 112, the following advantages are available when displaying text, graphics, symbols or images on the display section 210. When the ink section 111 is made of light-blocking ink, compared with the case where it is made of ink with low light-blocking properties, the outline and boundary lines of text, etc. can be clearly distinguished in the printed matter 100, thereby improving visual recognition.

[0097] Embodiment 3

[0098] FIG13 is a conceptual diagram showing an example of an enlarged cross-section of the printed matter 100 of Embodiment 3. For constituent elements having the same function and effect as the printed matter 100 of Embodiments 1 and 2, the same reference numerals are used and their descriptions are omitted. Furthermore, the white arrows shown in FIG13 indicate light passing through the aperture 112. Hereinafter, using FIG13, etc., the structure of Embodiment 3 will be described focusing on the differences from Embodiments 1 and 2. Furthermore, structures not described in Embodiment 3 are the same as those in Embodiments 1 and 2.

[0099] The printed matter 100 of Embodiment 3 has a display printing layer 310, which has a plurality of light-shielding ink portions 311 made of light-shielding ink having light-blocking properties. The printed matter 100 can block the transmission of light through the light-shielding ink portions 311. The light-shielding ink portions 311 and the display printing layer 310 are formed by printing.In the printed material 100, the printed layer 110 and the display printed layer 310 are arranged in a stacked state, with the printed layer 110 disposed on the surface side and the display printed layer 310 disposed on the back side relative to the printed layer 110. As an example, the display printed layer 310 is disposed on the opposite side of the printed layer 110, separated by a substrate 120.

[0100] In the printed material 100, in the stacking direction T of the printed layer 110 and the display printed layer 310, a plurality of light-shielding ink portions 311 are provided facing the ink portions 111 of the printed layer 110. In the printed material 100, in the stacking direction T of the printed layer 110 and the display printed layer 310, the light-shielding ink portions 311 are provided in portions that do not face the holes 112 constituting the display portion 210. In other words, in the printed matter 100, in the lamination direction T of the printed layer 110 and the display printed layer 310, the light-shielding ink portion 311 is provided in a portion that does not face the hole portion 112 constituting the display portion 210.

[0101] The light-shielding ink portion 311 may also face the hole portion 112 that does not constitute the display portion 210. The space between adjacent light-shielding ink portions 311 is configured to face one or more hole portions 112. The printed matter 100 can block the transmission of light through the light-shielding ink portion 311, and by blocking the transmission of light in portions other than the display portion 210, the display of graphics, etc., of the light-transmitting display portion 210 can be made clear.

[0102] FIG14 is a conceptual diagram showing the relationship between the light-shielding ink portion 311 and the display portion 210 as viewed in the lamination direction T of the printed matter 100 of Embodiment 3. Furthermore, FIG14 is, for example, part E of FIG8. In Figure 14, the left side represents the display printing layer 310, and the right side represents the printing layer 110. Multiple light-shielding ink portions 311 are arranged, for example, along the outer edge 215 of the display portion 210 in the stacking direction T of the printing layer 110 and the display printing layer 310.

[0103] Figure 15 is a conceptual diagram showing another example of an enlarged cross-section of the printed material 100 according to Embodiment 3. The stacking order of the printing layer 110, the substrate 120, and the display printing layer 310 is not limited to the arrangement in Figure 13. As shown in Figure 15, the display printing layer 310 may also be disposed between the printing layer 110 and the substrate 120. The printing layer 110 is printed on the substrate 120 via the display printing layer 310. The printed material 100 only needs to be formed such that the user can see the patterns formed on the printing layer 110. Furthermore, the layers constituting the printed material 100 are not limited to the three layers: the printing layer 110, the substrate 120, and the display printing layer 310. For example, a protective layer made of transparent material may be provided above the printed layer 110 to protect the printed layer 110.

[0104] FIG16 is a conceptual diagram showing an example of a display device 500 using the printed material 100 of Embodiment 3. The display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100.In the display device 500, the printed material 100 constitutes a display panel. Light emitted by the light-emitting device 400 and transmitted through multiple apertures 112 from the back side displays text, graphics, symbols, or images on the display unit 210.

[0105] As shown in Figures 13, 15, and 16, the substrate 120 of Embodiment 3 is a transparent component that transmits light, and is a transparent substrate on which a printed layer 110 is printed. The substrate 120 of Embodiment 3 is, for example, synthetic resin or glass, but is not limited to these materials. The substrate 120 can be a plate-shaped component or a thin film-shaped component such as a film. Furthermore, the substrate 120 can be not only a planar component but also a three-dimensional curved component. The white arrows shown in Figures 13, 15, and 16 indicate the transmission of light. As shown in Figures 13, 15, and 16, light passes through the multiple apertures 112 and transmits through the printed layer 110.

[0106] As shown in Figures 13, 15, and 16, light from the back side of the printed material 100 toward the printed material 100 can pass through the substrate 120, pass through the plurality of holes 112, and illuminate the surface side of the printed material 100. The light passes through the substrate 120, passes through the plurality of holes 112, passes through the printing layer 110, and passes through the printed material 100. That is, the printed material 100 can allow light to pass through portions of the plurality of holes 112 in the printing layer 110.

[0107] [Effects of the Printed Material]

[0108] The printed material 100 of Embodiment 3 has a display printing layer 310, which has a plurality of light-shielding ink portions 311 made of light-shielding ink with light-blocking properties. In the printed material 100, the printing layer 110 and the display printing layer 310 are arranged in a stacked state, with the printing layer 110 disposed on the surface side and the display printing layer 310 disposed on the back side relative to the printing layer 110. In the printed material 100, in the stacking direction T of the printed layer 110 and the display printed layer 310, a plurality of light-shielding ink portions 311 are arranged facing the ink portions 111 of the printed layer 110.

[0109] The printed material 100, through the light-shielding properties of the light-shielding ink portions 311, makes the difference in brightness between the display portion 210 and the portion other than the display portion 210 obvious, and makes the display portion 210 clear. With this structure, in the printed material 100, the boundary between the ink portions 111 and the plurality of holes 112 becomes obvious. When the light-shielding ink portions 311 of the printed material 100 are composed of light-shielding ink, compared with the case where they are composed of ink with low light-shielding properties, the outlines and boundaries of characters, etc., can be clearly distinguished, thereby improving visual recognition.

[0110] In Embodiment 3, the plurality of light-shielding ink portions 311 of the printed material 100 are arranged along the outer edge 215 of the display portion 210 in the stacking direction T of the printing layer 110 and the display printing layer 310. With this structure, the boundary between the ink portions 111 and the plurality of holes 112 becomes obvious in the printed material 100.Through this structure, the printed material 100 can clearly distinguish the outlines and boundaries of text, etc., thereby improving the visual recognizability of the display unit 210.

[0111] The display printing layer 310 is disposed on the opposite side of the printing layer 110, separated from the substrate 120. Alternatively, the display printing layer 310 may be disposed between the printing layer 110 and the substrate 120. The arrangement of the display printing layer 310, the printing layer 110, and the substrate 120 can be selected according to the usage state or the structure of the printing apparatus, etc.

[0112] In addition, the display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and text, graphics, symbols, or images are displayed on the display unit 210 by light emitted from the light-emitting device 400 and light passing through multiple apertures 112 from the back side. The display device 500 can switch the presence or absence of the display unit 210 by switching the light-emitting device 400 on or off. With this structure, the display device 500 can perform the same effect as the display device 500 of Embodiment 1.

[0113] Embodiment 4

[0114] FIG17 is a conceptual diagram showing an example of an enlarged cross-section of the printed matter 100 of Embodiment 4. For constituent elements having the same function and effect as the printed matter 100 of Embodiments 1 to 3, the same reference numerals are used and their descriptions are omitted. In addition, the white arrow shown in FIG17 indicates the light passing through the aperture 112. Hereinafter, the structure of Embodiment 4 will be described with reference to the differences from Embodiments 1 to 3, etc., using FIG17. In addition, the structure not described in Embodiment 4 is the same as the structure of Embodiments 1 to 3.

[0115] The printed matter 100 of Embodiment 4 has a display printing layer 310, which has a plurality of light-transmitting ink portions 312 made of light-transmitting ink that has light transmission properties. The translucent ink portion 312 and the display printing layer 310 are formed by printing. In the printed matter 100, the plurality of translucent ink portions 312 are composed of colored ink of at least one color. The translucent ink portion 312 can be of one color, or different colors can be used depending on the position of the ink. For example, the color of the ink in the translucent ink portion 312 can also be different depending on the first display portion 211, the second display portion 212, and the third display portion 213 (see FIG8).

[0116] In the printed matter 100, the printing layer 110 and the display printing layer 310 are arranged in a stacked state, with the printing layer 110 disposed on the surface side and the display printing layer 310 disposed on the back side relative to the printing layer 110. As an example, the display printing layer 310 is disposed on the opposite side of the printing layer 110 through the substrate 120.

[0117] In the stacking direction T of the printing layer 110 and the display printing layer 310, the light-transmitting ink portion 312 is provided in a position facing the display portion 210. In the printed matter 100, in the stacking direction T of the printing layer 110 and the display printing layer 310, the light-transmitting ink portion 312 is provided in a position facing the hole portion 112 constituting the display portion 210. Furthermore, the light-transmitting ink portion 312 may also have a portion facing the ink portion 111 in the stacking direction T of the printing layer 110 and the display printing layer 310. That is, in the stacking direction T, the light-transmitting ink portion 312 may also be configured to face one or more hole portions 112.

[0118] FIG18 is a conceptual diagram showing another example of an enlarged cross-section of the printed matter 100 of Embodiment 4. Furthermore, in FIG18, the type of shadow is changed in order to make the distinction between adjacent light-transmitting ink portions 312 more obvious. The stacking order of the printing layer 110, the substrate 120, and the display printing layer 310 is not limited to the arrangement shown in FIG. 17. As shown in FIG. 18, the display printing layer 310 may also be disposed between the printing layer 110 and the substrate 120. The printing layer 110 is printed on the substrate 120 via the display printing layer 310. The printed material 100 only needs to be formed such that the user can see the pattern formed on the printing layer 110. In addition, the layers constituting the printed material 100 are not limited to the three layers of the printing layer 110, the substrate 120, and the display printing layer 310. For example, the printed material 100 may also have a protective layer made of transparent material above the printing layer 110 to protect the printing layer 110. Furthermore, other ink components or filler materials may be used between adjacent light-transmitting ink portions 312.

[0119] FIG. 19 is a conceptual diagram showing another example of an enlarged cross-section of the printed material 100 of Embodiment 4. As shown in FIG19, the printed material 100 may also have a light-transmitting ink portion 312 disposed in the hole portion 112. As shown in FIG19, the printed material 100 may also be configured such that at least a portion of the printing layer 110 and the display printing layer 310 form the same layer.

[0120] FIG20 is a conceptual diagram showing another example of an enlarged cross-section of the printed material 100 of Embodiment 4. The plurality of light-transmitting ink portions 312 may, for example, include a plurality of colored inks of different concentrations. As shown in FIG20, the plurality of light-transmitting ink portions 312 may, for example, include a light-transmitting ink portion 312A composed of a colored ink with a relatively high concentration and a light-transmitting ink portion 312B composed of a colored ink with a relatively low concentration.

[0121] FIG21 is a conceptual diagram showing an example of a display device 500 using the printed material 100 of Embodiment 4. The display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 forms a display panel, and the light emitted by the light-emitting device 400 and transmitted through the multiple holes 112 from the back side displays text, graphics, symbols or images on the display section 210.

[0122] As shown in Figures 17 to 20, the substrate 120 of Embodiment 4 is a transparent component that allows light to pass through, and is a transparent substrate on which a printing layer 110 is printed. The substrate 120 of Embodiment 4 is, for example, a synthetic resin or glass, but is not limited to this material. The substrate 120 can be a plate-shaped component or a thin film-shaped component such as a film. In addition, the substrate 120 can be not only a planar component, but also a three-dimensional curved component. The white arrows shown in Figures 17 to 20 indicate the transmission of light. As shown in Figures 17 to 20, light passes through the printing layer 110 through the plurality of holes 112.

[0123] As shown in Figures 17 to 20, light from the back side of the printed matter 100 toward the printed matter 100 can pass through the substrate 120, and shine on the surface side of the printed matter 100 through the plurality of holes 112 respectively. Light passes through the substrate 120, through multiple apertures 112, through the printing layer 110 (page 10 / 16 of the specification, CN 122439201 A), and through the printed matter 100. That is, the printed matter 100 can allow light to pass through portions of the multiple apertures 112 of the printing layer 110.

[0124] [Effects of the printed matter]

[0125] The printed matter 100 of Embodiment 4 has a display printing layer 310, which has multiple light-transmitting ink portions 312 made of light-transmitting ink. In the printed matter 100, the multiple light-transmitting ink portions 312 are made of at least one color ink. In the printed matter 100, the printing layer 110 and the display printing layer 310 are arranged in a stacked state, with the printing layer 110 disposed on the surface side and the display printing layer 310 disposed on the back side relative to the printing layer 110. As an example, the display printing layer 310 is disposed on the opposite side of the printing layer 110, separated from the substrate 120. In the stacking direction T of the printing layer 110 and the display printing layer 310, the light-transmitting ink portion 312 is provided in the portion facing the display portion 210.

[0126] With this structure, the printed matter 100 can color the display of the display portion 210 by the color of the ink transmitted through the light-transmitting ink portion 312. With this structure, since the display of the display portion 210 of the printed matter 100 can be colored, the information content can be distinguished based on color separation by using the color-separated display portion 210. For example, by using the color-separated display portion 210, the printed matter 100 can distinguish the importance of the displayed information by having the red display portion 210 have a high importance, the yellow display portion 210 have a medium importance, and the blue display portion 210 have a low importance.

[0127] With this structure, since the display portion 210 of the printed material 100 can be colored, the presence of the display portion 210 can be made more obvious when it is displayed. For example, with the above structure, the printed material 100 can make the color of the pattern formed by the printing layer 110 and the color of the display portion 210 complementary colors.With the above-described structure, the printed material 100 can make the color difference between the display section 210 and the parts other than the display section 210 obvious, and can make the display of the display section 210 clear.

[0128] The display printing layer 310 is disposed on the opposite side of the printing layer 110 with the substrate 120 in between. Alternatively, the display printing layer 310 may also be disposed between the printing layer 110 and the substrate 120. The arrangement of the display printing layer 310, the printing layer 110 and the substrate 120 can be selected according to the usage state or the structure of the printing apparatus, etc.

[0129] In addition, the display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and text, graphics, symbols or images are displayed on the display section 210 by light emitted from the light-emitting device 400 and light passing through a plurality of holes 112 from the back side. The display device 500 can switch the presence or absence of the display section 210 by switching the light-emitting device 400 on or off. With this structure, the display device 500 can perform the same effect as the display device 500 of Embodiment 1.

[0130] Embodiment 5

[0131] FIG22 is a conceptual diagram showing an example of an enlarged cross-section of the printed matter 100 of Embodiment 5. For the constituent elements that have the same function and operation as the printed matter 100 of Embodiments 1 to 4, the same reference numerals are used and their descriptions are omitted. In addition, the white arrow shown in FIG22 indicates the light passing through the aperture 112. Hereinafter, the structure of Embodiment 5 will be described with reference to the differences from Embodiments 1 to 4, using FIG22, etc. In addition, the structure not described in Embodiment 5 is the same as the structure of Embodiments 1 to 4.

[0132] The printed matter 100 of Embodiment 5 has a display printing layer 310, which has a plurality of light-transmitting ink portions 312 made of light-transmitting ink and a light-shielding ink portion 311 made of light-blocking ink. The plurality of light-transmitting ink portions 312 are made of at least one color ink.

[0133] In the printed matter 100, the printing layer 110 and the display printing layer 310 are arranged in a stacked state, with the printing layer 110 disposed on the surface side and the display printing layer 310 disposed on the back side opposite to the printing layer 110. As an example, the display printing layer 310 is disposed on the opposite side of the printing layer 110 through the substrate 120. Instruction manual 11 / 16 pages 15 CN 122439201 A

[0134] In the printed matter 100, in the stacking direction T of the printed layer 110 and the display printed layer 310, the light-shielding ink portion 311 is provided to face the ink portion 111 of the printed layer 110.In the printed matter 100, in the lamination direction T of the printed layer 110 and the display printed layer 310, the light-blocking ink portion 311 is provided in a portion that does not face the hole portion 112 constituting the display portion 210. In other words, in the printed matter 100, in the lamination direction T of the printed layer 110 and the display printed layer 310, the light-blocking ink portion 311 is provided in a portion that does not face the display portion 210. Furthermore, the light-blocking ink portion 311 may also face the hole portion 112 that does not constitute the display portion 210. The space between adjacent light-blocking ink portions 311 may also be configured to face one or more hole portions 112.

[0135] In the printed matter 100, in the lamination direction T of the printed layer 110 and the display printed layer 310, the light-transmitting ink portion 312 is provided in a portion that faces the display portion 210. In the printed matter 100, a light-transmitting ink portion 312 is provided in the stacking direction T of the printed layer 110 and the display printed layer 310, facing the hole portion 112 constituting the display portion 210. Furthermore, the light-transmitting ink portion 312 may also have a portion facing the ink portion 111 in the stacking direction T of the printed layer 110 and the display printed layer 310. That is, one light-shielding ink portion 311 may also be configured to face one or more hole portions 112.

[0136] The light-shielding ink portion 311 may also be provided in the stacking direction T of the printed layer 110 and the display printed layer 310, arranged along the outer edge 215 of the display portion 210 (see FIG14).

[0137] FIG23 is a conceptual diagram showing another example of an enlarged cross-section of the printed matter 100 of Embodiment 5. The stacking order of the printed layer 110, the substrate 120, and the display printed layer 310 is not limited to the manner shown in FIG22. As shown in FIG23, the display printing layer 310 may also be disposed between the printing layer 110 and the substrate 120. The printing layer 110 is printed on the substrate 120 via the display printing layer 310. The printed material 100 only needs to be formed such that the user can see the pattern formed on the printing layer 110. In addition, the layers constituting the printed material 100 are not limited to the three layers of the printing layer 110, the substrate 120, and the display printing layer 310. For example, the printed material 100 may also have a protective layer made of a transparent material above the printing layer 110 to protect the printing layer 110.

[0138] FIG24 is a conceptual diagram showing an example of a display device 500 using the printed material 100 of Embodiment 5. The display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and the light emitted by the light-emitting device 400 and transmitted through the multiple holes 112 from the back side displays text, graphics, symbols or images on the display unit 210.

[0139] As shown in Figures 22 to 24, the substrate 120 of Embodiment 5 is a transparent component that transmits light, and is a transparent substrate on which a printing layer 110 is printed.The substrate 120 in Embodiment 5 is, for example, a synthetic resin or glass, but is not limited to this material. The substrate 120 can be a plate-shaped component or a film-shaped component such as a film. In addition, the substrate 120 can be not only a planar component, but also a three-dimensional curved component. The white arrows shown in Figures 22 to 24 indicate the transmission of light. As shown in Figures 22 to 24, light passes through the printing layer 110 through the plurality of holes 112.

[0140] As shown in Figures 22 to 24, light from the back side of the printed material 100 toward the printed material 100 can pass through the substrate 120, pass through the plurality of holes 112, and illuminate the surface side of the printed material 100. Light passes through the substrate 120, passes through the plurality of holes 112, passes through the printing layer 110, and passes through the printed material 100. That is, the printed material 100 can allow light to pass through portions of the plurality of holes 112 in the printing layer 110.

[0141] [Effects of the Printed Material]

[0142] The printed material 100 of Embodiment 5 has a display printing layer 310, which has a plurality of light-transmitting ink portions 312 made of light-transmitting ink and a light-shielding ink portion 311 made of light-blocking ink. The plurality of light-transmitting ink portions 312 are made of at least one color ink. In the printed material 100, in the stacking direction T between the printing layer 110 and the display printing layer 310, the light-shielding ink portion 311 is disposed facing the ink portion 111 of the printing layer 110. In the printed material 100, in the stacking direction T between the printing layer 110 and the display printing layer 310, the light-transmitting ink portion 312 is disposed in the portion facing the display portion 210. Instruction manual, pages 12 / 16, CN 122439201 A

[0143] With this structure, the printed material 100 can make the difference in brightness between the display section 210 and the parts other than the display section 210 obvious, and can make the display of the display section 210 clear. With this structure, in the printed material 100, the boundary between the ink section 111 and the plurality of holes 112 becomes obvious. When the light-shielding ink section 311 of the printed material 100 is made of light-shielding ink, compared with the case where it is made of ink with low light-shielding properties, the outline and boundary lines of characters, etc., can be clearly distinguished, thereby improving visual recognition.

[0144] With this structure, in the printed material 100, the boundary between the ink section 111 and the plurality of holes 112 becomes obvious, and the display of the display section 210 can be colored by the color of the ink that passes through the light-transmitting ink section 312. With this structure, the printed material 100 can color the display of the display unit 210, and therefore, the information content based on color separation can be distinguished by the color-separated display unit 210.

[0145] In Embodiment 5, the light-shielding ink portion 311 of the printed material 100 is provided to be arranged along the outer edge 215 of the display unit 210 in the stacking direction T of the printing layer 110 and the display printing layer 310.With this structure, the boundary between the ink portion 111 and the plurality of holes 112 in the printed material 100 becomes clear. With this structure, the printed material 100 can clearly distinguish the outlines and boundaries of characters, etc., thereby improving the visual recognizability of the display unit 210.

[0146] The display printing layer 310 is disposed on the opposite side of the printing layer 110, separated from the substrate 120. Alternatively, the display printing layer 310 may be disposed between the printing layer 110 and the substrate 120. The arrangement of the display printing layer 310, the printing layer 110, and the substrate 120 can be selected according to the usage state or the structure of the printing apparatus, etc.

[0147] In addition, the display device 500 has a printed material 100 and a light-emitting device 400 disposed on the back side of the printed material 100. In the display device 500, the printed material 100 constitutes a display panel, and text, graphics, symbols, or images are displayed on the display unit 210 by light emitted from the light-emitting device 400 and light transmitted through the plurality of holes 112 from the back side. The display device 500 can switch the presence or absence of the display section 210 by switching the light-emitting device 400 on or off. With this structure, the display device 500 can perform the same effect as the display device 500 of Embodiment 1.

[0148] The printed material 100 of Embodiment 5 includes the structure of the printed material 100 of Embodiments 3 and 4, and therefore can perform the same effect as the printed material 100 of Embodiments 3 and 4.

[0149] Embodiment 6

[0150] FIG25 is an exploded concept diagram showing an example of the solar cell 600 of Embodiment 6. FIG26 is a concept diagram showing an example of the enlarged cross section of the solar cell 600 of Embodiment 6. For the constituent elements having the same function and effect as the printed material 100 of Embodiments 1 to 5, the same reference numerals are used and their descriptions are omitted. In addition, the white arrow shown in FIG26 indicates the light passing through the aperture 112. Hereinafter, the structure of Embodiment 6 will be described with reference to the differences from Embodiments 1 to 5 using FIG25 and FIG26. Furthermore, the structure not described in Embodiment 6 is the same as that in Embodiments 1 to 5.

[0151] The printed material 100 in Embodiment 6 is a solar cell 600. The solar cell 600 is a device that converts solar energy into electrical energy using the photoelectric effect of semiconductors. As an example, the solar cell 600 is a perovskite solar cell. In addition, the solar cell 600 is not limited to a perovskite solar cell. For example, the solar cell 600 may also be other types of solar cells such as silicon solar cells.

[0152] The solar cell 600 includes: a printed layer 110 having an ink portion 111 composed of printed ink and having a plurality of holes 112 for light to pass through; and a substrate 120 on which the printed layer 110 is printed.

[0153] The printed layer 110 of the solar cell 600 is the printed layer 110 of the printed material 100 of Embodiment 1. The printed layer 110 constitutes a part of the solar cell 600 and applies decoration to the solar cell 600, etc. The ink portion 111 in the printed layer 110 of Embodiment 6 may also be a translucent ink.

[0154] The plurality of holes 112 are each composed of fine holes that are difficult to be visually identified by the naked eye. The plurality of holes 112 are, for example, holes with a diameter D of 2 micrometers or more and 10 micrometers or less, as described on pages 13 / 16 of the specification, CN 122439201 A. Alternatively, the plurality of holes 112 are, for example, holes with a diameter D of 5 micrometers or more and 100 micrometers or less. The printed layer 110 of Embodiment 6 is, for example, a layer with a light transmittance of 60% or more and 90% or less.

[0155] The substrate 120 is formed of a thin film member in the form of a flexible thin film. The substrate 120 is a member on which the printed layer 110 is printed. The substrate 120 includes a power generation layer 120A, which is stacked with the printed layer 110 and generates electricity by light passing through a plurality of apertures 112 in the printed layer 110. The printed layer 110 is printed on the light-receiving side of the power generation layer 120A. The printed layer 110 is, for example, directly printed on the light-receiving side of the power generation layer 120A. For example, the printed layer 110 is directly printed on the perovskite surface layer constituting the power generation layer 120A. Direct printing also includes coatings applied by printing. In addition, a coating may be applied to the top of the perovskite surface layer. The printed layer 110 may also be indirectly printed on the light-receiving side of the power generation layer 120A, for example, via a transparent thin film.

[0156] The power generation layer 120A is a layer that generates photoelectric conversion by light irradiation, generating electrons and pores from excitons generated by absorbing light. The solar cell 600 is, for example, a thin-film solar cell, and the power generation layer 120A is, for example, a flexible layer. The printed layer 110 and the power generation layer 120A constitute, for example, part of a perovskite solar cell.

[0157] The substrate 120 includes a thin film layer 120B on the side of the power generation layer 120A opposite to the printed layer 110. The thin film layer 120B is composed of a thin film-like component such as a thin film and is flexible. The thin film layer 120B is, for example, a synthetic resin, but is not limited to that material. Furthermore, the layers constituting the substrate 120 of the solar cell 600 are not limited to the two layers of the power generation layer 120A and the thin film layer 120B. Although not shown in the figure, the substrate 120 of the solar cell 600 has layers other than the power generation layer 120A that have functions for performing the function of the solar cell 600, such as an electrode layer.

[0158] The white arrows shown in FIG26 indicate the transmission of light. As shown in FIG26, light passes through the printed layer 110 through a plurality of apertures 112. As shown in Figure 26, light from the surface side of the solar cell 600 toward the power generation layer 120A passes through multiple holes 112 in the printed layer 110.That is, the light received by the solar cell 600 passes through the printed layer 110 through the multiple apertures 112 and reaches the power generation layer 120A of the solar cell 600.

[0159] [Effects of the Printed Material]

[0160] The solar cell 600 is a printed material 100, and the substrate 120 of the printed material 100 includes a power generation layer 120A, which is stacked with the printed layer 110 and generates electricity by passing light through the multiple apertures 112 in the printed layer 110. The printed layer 110 is printed on the light-receiving side of the power generation layer 120A. Even if the ink portion 111 of the printed layer 110 is used to form a decorative layer for design or various functions, the solar cell 600 can still allow light to pass through the printed layer 110 through the multiple apertures 112, and therefore, it can generate electricity through the power generation layer 120A of the substrate 120. Since the solar cell 600 includes the printed layer 110, it can generate electricity in a state where the printed layer 110 is effectively utilized in design, etc.

[0161] Furthermore, the printed layer 110 and the power generation layer 120A constitute part of a perovskite solar cell. Perovskite solar cells can be mass-produced using printing technology. Therefore, the solar cell 600 can be manufactured using printing technology to produce the printed layer 110 and the power generation layer 120A, thus making manufacturing easier and reducing manufacturing costs compared to manufacturing solar cells without using printing technology. Perovskite solar cells have strong resistance to deformation and can achieve lightweight design, thus allowing the solar cell 600 to be installed in locations where silicon solar cells could not be installed until now, while utilizing the design and other functions of the printed layer 110.

[0162] Furthermore, the printed layer 110 is a layer with a light transmittance of 60% or more and 90% or less. Since the solar cell 600 has a printed layer 110 with this structure, it can generate electricity through the power generation layer 120A of the substrate 120. The solar cell 600 includes the printed layer 110, thus enabling it to generate electricity by effectively utilizing the design and other functions of the printed layer 110.

[0163] Furthermore, the substrate 120 is formed of a thin-film member with flexibility. The power generation layer 120A is a flexible layer, and the solar cell 600 is a thin-film type solar cell. By having this structure, the solar cell 600 has strong resistance to deformation, as described on pages 14 / 16 of the specification (CN 122439201 A), and can achieve lightweighting. Therefore, the solar cell 600 can be installed in places where silicon solar cells could not be installed until now, while still utilizing the design and other functions of the printed layer 110.

[0164] Embodiment 7

[0165] FIG27 is an exploded conceptual diagram showing an example of the solar cell system 700 of Embodiment 7. FIG28 is a conceptual diagram showing an example of an enlarged cross-section of the solar cell system 700 of Embodiment 7.For constituent elements having the same function and effect as the printed material 100 of Embodiments 1 to 5, the same reference numerals are used and their descriptions are omitted. Furthermore, the white arrow shown in FIG28 indicates light passing through the aperture 112. Hereinafter, using FIG27 and FIG28, etc., the structure of Embodiment 7 will be described focusing on the differences from Embodiments 1 to 6. Furthermore, structures not described in Embodiment 7 are the same as those in Embodiments 1 to 6.

[0166] The solar cell system 700 includes: a printed material 100 disposed on the light-receiving surface side; and a solar cell 600 disposed facing the printed material 100 and generating electricity through light passing through the plurality of apertures 112 in the printed material 100.

[0167] The printed material 100 is the printed material 100 of Embodiment 1. The printed material 100 applies decorations, etc., to the solar cell 600. The printed material 100 includes: a printed layer 110 having ink portions 111 formed of printed ink and having a plurality of apertures 112 for light to pass through; and a substrate 120 on which the printed layer 110 is printed.

[0168] As shown in FIG28, the substrate 120 of Embodiment 7 is a transparent component that transmits light, and is a transparent substrate on which the printed layer 110 is printed. The substrate 120 of Embodiment 7 is, for example, a synthetic resin or glass, but is not limited to this material. The substrate 120 can be a plate-shaped component or a film-shaped component such as a film. In addition, the substrate 120 can be not only a planar component, but also a three-dimensional curved component. The white arrows shown in FIG28 indicate the transmission of light. As shown in FIG28, light passes through the printed layer 110 through the plurality of apertures 112.

[0169] The white arrows shown in FIG28 indicate the transmission of light. As shown in FIG28, light passes through the printed layer 110 through the plurality of apertures 112. Light shining from the surface of the solar cell system 700 onto the solar cell 600 passes through multiple apertures 112 of the printed layer 110. The light received by the solar cell 600 passes through the multiple apertures 112 and then through the printed layer 110 and the substrate 120 to reach the solar cell 600.

[0170] As an example, the solar cell 600 is a perovskite solar cell, but it is not limited to perovskite solar cells. Perovskite solar cells have strong resistance to deformation and can achieve lightweighting, so they can be installed in places where silicon solar cells cannot be installed until now. Therefore, when the solar cell 600 is a perovskite solar cell, the solar cell system 700 can install the solar cell 600 in places where silicon solar cells cannot be installed until now, while making full use of the design and other functions of the printed layer 110.

[0171] [Effects of the Printed Material]

[0172] The solar cell system 700 includes: a printed material 100 disposed on the light-receiving side; and a solar cell 600 disposed facing the printed material 100 and generating electricity through light passing through a plurality of holes 112 in the printed material 100. The substrate 120 is a transparent substrate made of a light-transmitting transparent component and having a printed layer 110 printed on its surface. Even if the printed material 100 is configured as a decorative layer for providing design or various functions by the ink portions 111 of the printed layer 110, the solar cell system 700 can still generate electricity through the printed layer 110 by passing light through the plurality of holes 112. By mounting the printed material 100 on the solar cell 600, the solar cell system 700 can generate electricity in a state where the design of the printed material 100 is effectively utilized.

[0173] The present disclosure has been described above based on embodiments, but the present disclosure is not limited to the structure of the embodiments described above. In particular, the combination of constituent elements is not limited to the combination in the embodiments and can be appropriately modified. In addition, it should be added that the scope of various modifications, applications, and uses that can be made by those skilled in the art as needed is also included in the subject matter (technical scope) of this disclosure on pages 15 / 16 of the specification, 19 CN 122439201 A.

[0174] Explanation of reference numerals

[0175] 100 Printed material, 100L Printed material, 110 Printed layer, 111 Ink portion, 111L Ink portion, 112 Hole portion, 120 Substrate, 120A Power generation layer, 120B Thin film layer, 210 Display portion, 211 First display portion, 212 Second display portion, 213 Third display portion, 215 Outer edge, 310 Display printing layer, 311 Light-shielding ink portion, 312 Light-transmitting ink portion, 312A Light-transmitting ink portion, 312B Light-transmitting ink portion, 400 Light-emitting device, 410 Light source substrate, 420 Light-emitting element, 500 Display device, 600 Solar cell, 700 Solar cell system, T Stacking direction.Instruction Manual 16 / 16 Page 20 CN 122439201 A Figure 1 Figure 2 Instruction Manual Figure 1 / 19 Page 21 CN 122439201 A Figure 3 Figure 4 Instruction Manual Figure 2 / 19 Page 22 CN 122439201 A Figure 5 Figure 6 Instruction Manual Figure 3 / 19 Page 23 CN 122439201 A Figure 7 Figure 8 Instruction Manual Figure 4 / 19 Page 24 CN 122439201 A Figure 9 Figure 10 Instruction Manual Figure 5 / 19 Page 25 CN 122439201 A Figure 11 Instruction Manual Figure 6 / 19 Page 26 CN 122439201 A Figure 12 Instruction Manual Figure 7 / 19 Page 27 CN 122439201 A Figure 13 Figure 14 Instruction Manual Figure 8 / 19 Page 28 CN 122439201 A Figure 15 Instruction Manual Figure 9 / 19 Page 29 CN 122439201 A Figure 16 Instruction Manual Appendix 10 / 19 Page 30 CN 122439201 A Figure 17 Figure 18 Instruction Manual Appendix 11 / 19 Page 31 CN 122439201 A Figure 19 Figure 20 Instruction Manual Appendix 12 / 19 Page 32 CN 122439201 A Figure 21 Instruction Manual Appendix 13 / 19 Page 33 CN 122439201 A Figure 22 Figure 23 Instruction Manual Appendix 14 / 19 Page 34 CN 122439201 A Figure 24 Instruction Manual Appendix 15 / 19 Page 35 CN 122439201 A Figure 25 Instruction Manual Appendix 16 / 19 Page 36 CN 122439201 A Figure 26 Instruction Manual Appendix 17 / 19 Page 37 CN 122439201 A Figure 27 Instruction Manual Appendix 18 / 19 Page 38 CN 122439201 A Figure 28 Instruction Manual Appendix 19 / 19 Page 39 CN 122439201 A.

Claims

1. A printed matter, wherein, The printed matter includes: A printed layer having ink portions composed of printed ink and forming a plurality of apertures for light to pass through; and A substrate on which the printed layer is printed. The plurality of holes are each composed of tiny pores that are difficult to be visually identified by the naked eye.

2. The printed matter according to claim 1, wherein, The plurality of holes are holes with a diameter of 2 micrometers or more and 10 micrometers or less.

3. The printed matter according to claim 1, wherein, The plurality of holes are holes with a diameter of 5 micrometers or more and 100 micrometers or less.

4. The printed matter according to any one of claims 1 to 3, wherein, The ink portion is composed of light-blocking ink that is opaque to light.

5. The printed matter according to any one of claims 1 to 4, wherein, When the side that the user observes is designated as the surface side relative to the printed layer, and the back side of the surface side is designated as the back side side, The printed layer has a display portion on the surface side that constitutes a part for displaying text, graphics, symbols, or images. The display unit is composed of an assembly of the plurality of holes, and displays text, graphics, symbols, or images by transmitting light through the plurality of holes from the rear side. The substrate is a transparent component that allows light to pass through, and is a transparent substrate on which the printed layer is printed.

6. The printed matter according to claim 5, wherein, The number of holes that form part of the display portion is greater than the number of holes that do not form part of the display portion.

7. The printed matter according to claim 5 or 6, wherein, The printed layer is formed by the ink portions creating the pattern. The display unit shows the pattern by allowing light to pass through the plurality of holes from the back side, so that the light passes through the pattern and appears on the pattern. When light does not pass through the plurality of holes from the back side, the display unit does not appear on the pattern and maintains the appearance of the pattern.

8. The printed matter according to claim 5, wherein, The printed material also has a display printing layer having a plurality of light-shielding ink portions composed of light-blocking ink having light-blocking properties. The printed layer and the display printed layer are configured to be stacked. The printed layer is disposed on the surface side. The display printing layer is disposed on the back side relative to the printing layer. In the stacking direction of the printed layer and the display printed layer The plurality of light-shielding ink portions are configured to face the ink portions of the printed layer.

9. The printed matter according to claim 8, wherein, The plurality of light-shielding ink portions are arranged along the outer edge of the display portion in the stacking direction of the printing layer and the display printing layer.

10. The printed matter according to claim 5, wherein, The printed material also has a display printing layer, which has a plurality of translucent ink portions composed of translucent ink that allows light to pass through. The plurality of translucent ink portions are composed of colored inks of at least one color. The printed layer and the display printed layer are configured to be stacked. The printed layer is disposed on the surface side. The display printing layer is disposed on the back side relative to the printing layer. In the stacking direction of the printed layer and the display printed layer The plurality of light-transmitting ink portions are arranged to be located in the portion facing the display portion.

11. The printed matter according to claim 5, wherein, The printed material also has a display printing layer, which has a plurality of light-transmitting ink portions made of light-transmitting ink and a plurality of light-blocking ink portions made of light-blocking ink. The plurality of translucent ink portions are composed of colored inks of at least one color. The printed layer and the display printed layer are configured to be stacked. The printed layer is disposed on the surface side. The display printing layer is disposed on the back side relative to the printing layer. In the stacking direction of the printed layer and the display printed layer The plurality of light-shielding ink portions are configured to face the ink portions of the printed layer. The plurality of light-transmitting ink portions are arranged to be located in the portion facing the display portion.

12. The printed matter according to claim 11, wherein, The plurality of light-shielding ink portions are arranged along the outer edge of the display portion in the stacking direction of the printing layer and the display printing layer.

13. The printed matter according to any one of claims 8 to 12, wherein, The display printing layer is disposed on the opposite side of the printing layer, separated from the substrate.

14. The printed matter according to any one of claims 8 to 12, wherein, The display printing layer is disposed between the printing layer and the substrate.

15. A display device, wherein, The display device has: The printed matter according to any one of claims 6 to 14; and A light-emitting device disposed on the back side of the printed matter. The printed material constitutes a display panel. Light emitted by the light-emitting device and transmitted through the plurality of holes from the rear side displays text, graphics, symbols, or images on the display unit.

16. A solar cell, wherein the solar cell is the printed material according to any one of claims 1 to 4, wherein, The substrate includes a power-generating layer, which is stacked on top of the printed layer to generate electricity by transmitting light through the plurality of apertures in the printed layer. The printed layer is printed on the light-receiving side of the power-generating layer.

17. The solar cell according to claim 16, wherein, The printed layer and the power generation layer constitute part of a perovskite solar cell.

18. The solar cell according to claim 16 or 17, wherein, The printed layer is a layer with a light transmittance of 60% or more and 90% or less.

19. The solar cell according to any one of claims 16 to 18, wherein, The substrate is formed from a flexible, thin-film-like thin-film component.

20. A solar cell system, wherein, The solar cell system includes: The printed matter according to any one of claims 1 to 4, wherein the printed matter is disposed on the light-receiving surface side; and A solar cell, configured to face the printed material, generates electricity by transmitting light through the plurality of apertures in the printed material. The substrate is composed of a transparent component that allows light to pass through and a printed layer that is printed on its surface.

Images