Display device

Abstract

To provide a display device that can suppress decline in a design property while suppressing decline in visibility.SOLUTION: A display device has: a light emitting display body 101 that is put into a plate material 10; a photochromatic layer 100aa that is provided on a surface side of the light emitting display body 101; and a color tone adjustment layer 150 that is provided between the light emitting display body 101 and the photochromatic layer 100aa. The photochromatic layer 100aa is provided so as to cover a whole surface of the light emitting display body 101 or one part thereof on a surface side of the light emitting display body 101, and includes a base layer 120 and a coating layer 130 serving as a coating base layer with light transmission and with a pattern. The photochromatic layer 100aa is provided so as to cover the light emitting display body 101 and plate material 10 as a whole, and the color tone adjustment layer 150 is provided so as to overlap a whole region except for a region overlapping the light emitting display body 101, of a face on a light emitting display body 101 side of the photochromatic layer 100aa.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a display device. [Background technology]

[0002] In a display device in which a sheet having optical transparency and design properties is provided on the surface of a light-emitting display body, when the light-emitting display body is activated and emits light, the light from the light-emitting display body passes through the sheet, allowing the characters, figures, symbols, etc. displayed on the light-emitting display body to be visually recognized. On the other hand, when the light-emitting display body is deactivated, the sheet covers the light-emitting display body, making it impossible to recognize the light-emitting display body, resulting in a design that blends in with the surroundings (for example, see Patent Documents 1 and 2 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-128581 A [Patent Document 2] Patent No. 6370519 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned conventional display device, the light-emitting display body is covered with a sheet so that the light-emitting display body cannot be recognized when the device is not in operation. However, when the color tone of the plate material of a wall or the like to which the light-emitting display body is attached differs from the color tone of the light-emitting display body when it is not in operation, even if the light-emitting display body is covered with a sheet, the difference in color tone of the boundary between the light-emitting display body and the plate material is visible from above the sheet, and a person looking at the wall or the like will be able to recognize that the light-emitting display body is embedded in the wall or the like. As a method for making the boundary between the light-emitting display body and the plate material invisible, it is possible to make the boundary between the light-emitting display body and the plate material invisible from above the sheet by making the color of the sheet covering the light-emitting display body blacker or darker. However, if the color of the sheet is made blacker or darker, when the light-emitting display body is activated, the display content of the light-emitting display body cannot be recognized from above the sheet, and there is a problem in that visibility is reduced.

[0005] In view of the above, an object of the present invention is to provide a display device capable of suppressing a decrease in visibility while suppressing a decrease in design. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the display device according to the present invention has a light-emitting display body embedded in a plate material, a light-adjusting layer provided on the surface side of the light-emitting display body, and a color tone adjustment layer provided between the light-emitting display body and the light-adjusting layer, the light-adjusting layer having a light-transmitting covering base layer provided on the surface side of the light-emitting display body so as to cover the whole or a part of the surface of the light-emitting display body, the light-adjusting layer being provided so as to cover the whole of the light-emitting display body and the plate material, and the color tone adjustment layer being provided so as to overlap the whole of the surface of the light-adjusting layer on the light-emitting display body side except for the area overlapping with the light-emitting display body. The light control layer further includes a pattern-imparting layer that is provided on the surface side of the light-emitting display body and imparts a pattern to the light from the light-emitting display body and transmits the light. It is characterized by the above. Effect of the Invention

[0007] According to one aspect of the present invention, a color tone adjustment layer is provided in an area of ​​a plate material having an embedded light-emitting display body other than the light-emitting display body, thereby making it possible to suppress a decrease in visibility while also suppressing a decrease in design. [Brief description of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view illustrating a schematic configuration of an embodiment of a display device according to the present invention. [Diagram 2] FIG. 1 is a schematic diagram showing an example of a panel to which a display device according to the present invention is applied. [Diagram 3] 13 is a modified example of the display device according to the present invention. [Figure 4] FIG. 11 is a cross-sectional view illustrating a schematic configuration of a main part of another embodiment of a display device according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of a display device according to the present invention will be described with reference to the drawings, but the present invention is not limited to the embodiment described with reference to the drawings.

[0010] <Embodiment> An embodiment of a display device according to the present invention will be described with reference to FIGS.

[0011] The display device 100 according to this embodiment is a fitting-type display device that is fitted into a board 10 and used as a wall or the like. As shown in FIG. 1, a display device 100 according to this embodiment includes a light-emitting display body 101 and a cover sheet 100a provided on the front surface side of the light-emitting display body 101. The light-emitting display body 101 is fitted into the plate material 10 so as to be approximately flush with the plate material 10, and the light-emitting display body 101 and the entire plate material 10 are covered with a covering sheet 100a to form a panel 20 (20b) as shown in Fig. 2. The panel 20b into which the light-emitting display body 101 is fitted and the panels 20a and 20c into which the light-emitting display body 101 is not fitted are arranged to be in contact with each other to form a wall surface.

[0012] When the light-emitting display body 101 is in operation, the panel 20b can display the information displayed on the display screen of the light-emitting display body 101 on the surface of the panel 20b, and when the light-emitting display body 101 is not in operation, the panel 20b is configured to have a uniform color tone. As shown in FIG. 1, the cover sheet 100a includes a light-adjusting layer 100aa and a color tone adjusting layer 150 provided on the back surface side of the light-adjusting layer 100aa.

[0013] The light-adjusting layer 100aa includes a pattern-imparting layer 110 that is provided on the surface side of the light-emitting display body 101, imparts a pattern to the light from the light-emitting display body 101, transmits it, and complements the color tone of the picture pattern of the covering layer 130 described below; a light-transmitting base layer 120 that is provided on the pattern-imparting layer 110 so as to cover the entire surface of the pattern-imparting layer 110; a light-transmitting covering layer 130 that is provided on the base layer 120 so as to cover the entire surface of the base layer 120, and has a pattern; and a light-transmitting surface protection layer 140 that is provided on the covering layer 130 so as to cover the entire surface of the covering layer 130.

[0014] The covering sheet 100a is arranged to cover the entire surface of the plate 10 in which the light-emitting display 101 is embedded, that is, in the case of the panel 20b, the light-emitting display 101 and the entire surface of the plate 10 in which the light-emitting display 101 is embedded. The color tone adjustment layer 150 is provided so as to overlap the entire surface of the plate 10, that is, the entire area of ​​the surface of the light-adjusting layer 100aa on the light-emitting display 101 side, excluding the area overlapping with the light-emitting display 101. Here, "overlapping the entire area excluding the area overlapping with the light-emitting display 101" includes not only the case where the color tone adjustment layer 150 completely overlaps the area excluding the area overlapping with the light-emitting display 101, but also the case where the color tone adjustment layer 150 almost overlaps, for example, the case where the color tone adjustment layer 150 overlaps with about 90% of the width of the plate 10, or the case where the color tone adjustment layer 150 overlaps with 90% of the height of the plate 10. In other words, depending on the arrangement position and size of the panel 20, the vicinity of the edge of the panel 20 may be relatively difficult to recognize even if the color tone is different. Therefore, in areas where a difference in color tone is relatively difficult to perceive, such as near the edges of the plate material 10, the color tone adjusting layer 150 does not need to be provided.

[0015] The light-emitting display 101 is capable of emitting light to display characters, figures, symbols, etc. on its surface, and examples of such displays include a liquid crystal display (LCD), an organic electroluminescent display (OLED), and a light-emitting diode (LED) display.

[0016] The pattern-imparting layer 110 has a substrate 111 located on the light-emitting display 101 side and having optical transparency over its entire surface, and a pattern layer 112 provided on the substrate 111 and imparting a pattern to light passing through the substrate 111.

[0017] The base material 111 is made of a light-transmitting resin film, and has a thickness of 50 μm or more and 1000 μm or less.

[0018] The pattern layer 112 is provided by printing ink of a color that complements the color tone of the picture pattern of the coating layer 130 on the substrate 111 by inkjet printing, gravure printing, or the like, and has light reflectivity and is formed with a plurality of voids 112a in an array shape. The pattern layer 112 has a thickness of 10 μm to 500 μm, a diameter of the voids 112a of 10 μm to 1000 μm, and a distance between adjacent voids 112a of 20 μm to 2000 μm. In FIG. 1, the pattern layer 112 is enlarged compared to the light-emitting display 101 in order to make the shape of the pattern layer 112 easier to understand.

[0019] The base layer 120 is made of a light-transmitting resin film and has a thickness of 50 μm or more and 1000 μm or less.

[0020] The covering layer 130 has a color adjusting layer 131 located on the base layer 120 side for adjusting the color, and a pattern layer 132 provided on the color adjusting layer 131 and having a pattern.

[0021] The color-adjusting layer 131 is printed with ink over the entire surface of the base layer 120 so as to have optical transparency, and adjusts the color so as not to be visible when the light-emitting display 101 is not in operation. The color-adjusting layer 131 has a thickness of 1 μm or more and 500 μm or less.

[0022] The pattern layer 132 is formed by printing various patterns such as wood grain conduits and marble on the color adjusting layer 131 with ink so as to have light transmittance, and has a design that blends in with the surroundings when the light emitting display 101 is not in operation. The pattern layer 132 has a thickness of 1 μm or more and 500 μm or less.

[0023] Surface protection layer 140 is made of a colorless and transparent resin or the like, is capable of protecting pattern layer 132, and has a thickness of 1 μm or more and 2000 μm or less. Surface protection layer 140 may have a surface that is not only flat but also uneven (embossed), and may further have a coating layer on its surface for adjusting gloss, etc.

[0024] In this embodiment, the base layer 120 and the covering layer 130 are provided on the pattern-imparting layer 110 so as to cover the entire surface of the pattern-imparting layer 110, forming a covering base layer that is optically transparent and has a pattern. The color tone adjustment layer 150 is provided to prevent a decrease in the design quality by making the color tone of the surface of the light-emitting display body 101 when it is not in operation different from the color tone of the surface of the plate material 10 in which the light-emitting display body 101 is embedded, so that when the light-emitting display body 101 is in the stopped state, the boundary between the light-emitting display body 101 and the plate material 10 appears transparent with a different color tone, allowing people to recognize that the light-emitting display body 101 is incorporated in the panel 20.

[0025] The color tone adjusting layer 150 is provided so as to cover the entire surface of the plate 10 excluding the light emitting display body 101 when viewed from the front side of the light emitting display body 101 . The color tone adjustment layer 150 is made of, for example, a black sheet, and has a regular reflectance of 20% or less and a diffuse reflectance of 20% or less. The thickness of the color tone adjustment layer 150 is 1 mm or less. Note that the color tone adjustment layer 150 is not limited to a black sheet, and may be formed, for example, by applying black ink to the surface of the base material 111 opposite the pattern layer 112, except for the area overlapping with the light-emitting display 101, to form a coating film having a regular reflectance of 20% or less and a diffuse reflectance of 20% or less.

[0026] Furthermore, the color tone adjusting layer 150 may be a sheet made of paper, and any material having the characteristics of a regular reflectance of 20% or less and a diffuse reflectance of 20% or less can be used. It is desirable that the difference in specular reflectance and diffuse reflectance between the color tone adjustment layer 150 and the surface of the light emitting display 101 be 3% or less.

[0027] Such a display device 100 according to one embodiment of the present invention can be manufactured as follows. First, ink is printed and applied to the base layer 120 to provide the color adjustment layer 131, and then ink is printed and applied to the color adjustment layer 131 to provide the pattern layer 132, thereby forming the covering layer 130. Thereafter, a colorless and transparent ink is printed and applied to the entire surface of the covering layer 130, or a colorless and transparent resin or the like is laminated to provide the surface protection layer 140.

[0028] In addition, a pattern layer 112 is printed in an array shape on the substrate 111 by an inkjet method, gravure printing, or the like to form a pattern-imparted layer 110. Then, a base layer 120 is superimposed on the pattern-imparted layer 110, and further, a color-adjusting layer 150 having an opening in a portion that overlaps with the light-emitting display 101 is superimposed on the substrate 111 to form a covering sheet 100a.

[0029] Then, in the plate material 10 with the light-emitting display body 101 embedded therein, the covering sheet 100a is arranged so that the light-emitting display body 101 overlaps with the opening 150a of the covering sheet 100a, and so as to cover the entire surface of the plate material 10, including the light-emitting display body 101, thereby obtaining the display device 100.

[0030] The operation of the display device 100 according to one embodiment of the present invention thus obtained will now be described. When the light-emitting display 101 is activated to emit light, light passes through the voids 112a of the pattern layer 112 via the substrate 111 of the pattern-imparting layer 110, and transmits through the color-adjusting layer 131 and pattern layer 132 of the covering layer 130 via the base layer 120, making it possible to view letters, figures, symbols, etc. on the surface protective layer 140, i.e., on the surface of the panel 20.

[0031] On the other hand, when the light-emitting display 101 is deactivated and stops emitting light, the covering layer 130 and the pattern-imparting layer 110 cover the light-emitting display 101, and the pattern layer 112 reflects light from the covering layer 130 side, so that people cannot recognize the light-emitting display 101 on the surface of the panel 20, resulting in a design that blends in with the surroundings. Furthermore, a color tone adjustment layer 150 is disposed between the pattern-imparting layer 110 and the light-emitting display body 101 so that the color tone adjustment layer 150 covers the entire surface of the plate material 10 except for the light-emitting display body 101 .

[0032] Therefore, even if the color tone of the light-emitting display body 101 when it is not in operation differs from the color tone of the board material 10, by overlaying the color tone adjusting layer 150 on the board material 10, when the surface of the panel 20 is viewed, the portion overlapping with the light-emitting display body 101 and the portion overlapping with the board material 10 will have a substantially uniform color tone. Therefore, when a person views the surface of the panel 20 when it is not in operation, it is possible to avoid noticing the presence of the light-emitting display body 101, and it is possible to achieve a design that harmonizes with the surroundings.

[0033] Moreover, the color tone adjustment layer 150 is provided only on the portion excluding the light emitting display body 101. Therefore, even if a black sheet is provided as the color tone adjustment layer 150, it is possible to avoid a situation in which the display information of the light emitting display body 101 displayed on the surface of the panel 20 through the covering sheet 100a becomes difficult to see when the light emitting display body 101 is operated, and it is possible to suppress a decrease in visibility while suppressing a decrease in design.

[0034] Furthermore, in the display device 100 according to one embodiment of the present invention, there is absolutely no need to align the color adjustment layer 131 and the design layer 132 of the covering layer 130 and the surface protection layer 140 with respect to the pattern layer 112 of the pattern-imparting layer 110, which obviates the need to perform alignment adjustments, etc.

[0035] Furthermore, since the base layer 120, the covering layer 130 and the surface protection layer 140 are provided over the entire surface without any gaps, etc., there is no deterioration in texture or design, and it is possible to prevent dust and the like from entering the interior, thereby preventing a decrease in visibility.

[0036] Therefore, the display device 100 according to one embodiment of the present invention can be easily manufactured while suppressing deterioration in texture, design, and visibility.

[0037] As shown in FIG. 2, the panels 20a and 20c, which form a wall surface together with the panel 20b in which the light-emitting display 101 is embedded, do not have the light-emitting display 101. However, the entire surface of these plate materials 10 is covered with a covering sheet having the same layer structure as the covering sheet 100a provided on the panel 20b, except that the color-tone adjustment layer 150 does not have an opening 150a corresponding to the light-emitting display 101 and covers the entire back side of the pattern-imparting layer 110.

[0038] Here, if panels 20a and 20c were constructed using covering sheets with a layer structure different from that of the covering sheet of panel 20b, there is a possibility that the color tone will differ between panel 20b and panels 20a and 20c, thereby reducing the design quality of the wall surface.

[0039] However, even for panels 20a and 20c that do not have light-emitting display body 101, since plate material 10 is covered with a covering sheet having the same layer structure as covering sheet 100a, the color tones can be made approximately the same among panels 20a to 20c, and deterioration of design can be suppressed. In addition, the substrate 111 and base layer 120 of the pattern-imparting layer 110 are not limited to being colorless and transparent, and may be colored as long as they are capable of transmitting light, and the color, etc., is appropriately selected depending on various conditions such as the visibility of the light-emitting display 101 and the harmony with the surroundings.

[0040] In the above embodiment, the case where the photochromic layer 100aa includes the pattern-imparting layer 110 has been described. However, if the pattern of the covering layer 130 does not require color complementation, as shown in FIG. 3, the photochromic layer 100aa′ does not necessarily have to include the pattern-imparting layer 110.

[0041] In the above embodiment, the display device 100 is applied to one panel 20 among a plurality of panels forming a wall surface, but the present invention is not limited to this. For example, the display device 100 can be applied to a panel used as a partition or a guide board, or to a plate material that forms a wall surface in one piece. The display device 100 can also be applied to a table, an insert panel of a vehicle, etc.

[0042] In the above-described embodiment, the display device 100 is described in which the surface protective layer 140 is provided on the covering layer 130, but the present invention is not limited thereto. As another embodiment, for example, it is possible to omit the surface protective layer 140 and provide a display device in which the covering layer 130 is exposed. However, as in the above-described embodiment, providing the surface protective layer 140 on the covering layer 130 is highly preferable because it is possible to prevent deterioration of the pattern on the covering layer 130.

[0043] In the above embodiment, the display device 100 in which the covering layer 130 is formed by the color adjusting layer 131 and the pattern layer 132 has been described, but the present invention is not limited to this. In another embodiment, for example, depending on conditions such as the color of the base layer 120 and the pattern of the pattern layer 132, it is also possible to omit the color adjusting layer 131 and form the covering layer by only the pattern layer 132.

[0044] In the above embodiment, the display device 100 is described as having a coated base layer formed of the base layer 120 and the coating layer 130, but the present invention is not limited thereto. As another embodiment, for example, depending on conditions such as a pattern, it is also possible to apply a coated base layer in which the base layer 120 and the coating layer 130 are integrated, that is, a coated base layer having light transparency and a pattern.

[0045] In the above embodiment, the display device 100 is described in which the covering base layers 120, 130 are provided on the pattern-imparting layer 110 so as to cover the entire surface of the pattern-imparting layer 110, but the present invention is not limited thereto. As another embodiment, for example, a display device in which a covering base layer is provided on the pattern-imparting layer 110 so as to cover a portion of the surface of the pattern-imparting layer 110 is also possible.

[0046] In the above embodiment, the display device 100 is provided with the pattern layer 110 formed by printing the pattern layer 112 having a plurality of voids 112a on the light-transmitting substrate 111, but the present invention is not limited thereto. As another embodiment, for example, as shown in FIG. 4, a pattern layer 512 may be provided by forming a plurality of light passing holes 510a by laser light, drilling, or the like on the substrate 511 having light-shielding properties, thereby applying the pattern layer 510 that transmits light from the light-emitting display body 101 and reflects light from the covering base layers 120 and 130. Although the embodiment of the present invention has been described in detail above, in reality, the present invention is not limited to the above embodiment, and even if there are modifications within the scope of the gist of the present invention, they are included in the present invention. [Industrial Applicability]

[0047] The display device according to this embodiment can be easily manufactured while suppressing deterioration in texture, design, and visibility, and can therefore be used industrially in a very beneficial manner. [Explanation of symbols]

[0048] 10 Board material Panels 20, 20a-20c 100, 100′ display device 100a Covering sheet 100aa photochromic layer 101 Illuminating display 110 Patterning layer 111 Base material 112 Pattern Layer 112a Cavity 120 Base Layer 130 Covering layer 131 Color Adjustment Layer 132 Pattern Layer 140 Surface protective layer 150 tone adjustment layer 510 Patterning layer 510a Light passing hole 511 Base material 512 Pattern Layer

Claims

1. A light-emitting display body embedded in the plate material; A light control layer provided on a front surface side of the light emitting display; a color tone adjusting layer provided between the light emitting display and the light control layer, The light-adjusting layer includes a covering base layer that is provided on the front surface side of the light-emitting display body so as to cover the entire or part of the surface of the light-emitting display body, and that has light transparency and a pattern; The light control layer is provided so as to cover the light emitting display and the plate material as a whole, the color tone adjusting layer is provided so as to overlap an entire area of ​​the surface of the light-adjusting layer facing the light-emitting display body, except for an area overlapping with the light-emitting display body; The light-controlling layer is The display device further comprises a pattern-imparting layer provided on a surface side of the light-emitting display body to impart a pattern to the light from the light-emitting display body and transmit the light.

2. 2. The display device according to claim 1, wherein the color tone adjustment layer has a regular reflectance of 20% or less and a diffuse reflectance of 20% or less.

3. 3. The display device according to claim 1, wherein the color tone adjusting layer is made of a black sheet.

4. 3. The display device according to claim 1, wherein the color tone adjusting layer is made of a coating of black ink.

5. The coating base layer comprises: a base layer provided on the pattern-imparting layer so as to cover the entire or a part of a surface of the pattern-imparting layer and having optical transparency; a covering layer provided on the base layer so as to cover the entire surface of the base layer, the covering layer having light transmission and a pattern; The display device according to any one of claims 1 to 4, further comprising:

6. A surface protective layer having optical transparency is provided on the coating base layer so as to cover the entire or part of the surface of the coating layer.

6. The display device according to claim 5.

7. The coating layer is a color adjusting layer located on the base layer side for adjusting a color; a pattern layer provided on the color-adjusting layer and having the pattern; 7. The display device according to claim 5, further comprising:

8. The pattern-imparting layer has a plurality of light-passing holes formed therein, through which light from the light-emitting display passes. The display device according to any one of claims 5 to 7.

9. The patterning layer comprises: a substrate located on the light-emitting display body side and having optical transparency over the entire surface; a pattern layer provided on the substrate to impart the pattern to light passing through the substrate; 9. The display device according to claim 1, further comprising:

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