Display panel and display lamp device including the same, as well as method for manufacturing display panel

Abstract

To provide a display panel which can provide a translucent display part with good positional accuracy, and has many choices of designability of the surface and touch feeling.SOLUTION: A display panel (10) includes a cushion layer (30) provided on the surface side of a base material (20), a light-shielding material (40) provided on the surface side of the cushion layer (30), and a skin material (50) which covers the surface side of the light-shielding material (40), and is wound up to the back side of the base material (20). The light-shielding material (40) has a light-shielding layer (43) provided on the surface of a translucent layer (41). Each part corresponding to the base material (20), the cushion layer (30) and through holes (45) of the skin material (50) have translucency. The display panel (10) is provided with a translucent display part (11) capable of lightening in patterns corresponding to the through holes (45) by transmitting light (DL) emitted from the back side of the base material (20) through the through holes (45) formed in the light-shielding layer (43).SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a display panel, a display lamp device including the same, and a method for manufacturing the display panel.

Background Art

[0002] Conventionally, a display lamp device that lights up characters and patterns is known. As such a display lamp device, for example, Patent Document 1 discloses an interior part of a vehicle. The interior part disclosed in the prior document includes a skin material, a base material, and a lighting part. The skin material is provided with a transmission pattern that transmits light.

[0003] The skin material is obtained by slush molding a powdery TPU resin and has translucency. The base material is provided on the back surface of the skin material via a filler. An opening is formed at a predetermined position of the base material. The lighting part is disposed at a position corresponding to the opening on the back side of the base material and emits light toward the skin material. In the interior part, the light emitted from the lighting part irradiates the back surface of the skin material through the opening of the base material and transmits to the front surface side of the skin material, thereby displaying characters and figures on the surface of the skin material.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the interior part disclosed in Patent Document 1, it is possible to impart cushioning properties by a filler. To manufacture this interior part, it is necessary to mold the skin material into a predetermined shape using an expensive molding device and position the skin material based on the shape of the skin material so that the transmission pattern corresponds to the opening in the base material. Therefore, the manufacturing cost of the interior part increases.

[0006] On the other hand, a method (the winding-in method) is conceivable in which a cushion layer is provided on the front side of the base material, and a skin material having a transmission pattern formed thereon is bonded to the surface of the cushion layer and wound around and fixed to the back side of the base material. However, when such a winding-in method is adopted, the transmission pattern is likely to be displaced due to the degree of elongation of the skin material and variations in the bonding position on the surface of the base material with the cushion layer, resulting in poor positional accuracy of the light-transmitting display portion that displays characters and figures.

[0007] Further, Patent Document 1 describes that the transmission pattern of the skin material is formed by baking a part of the skin material using a laser processing machine. However, when attempting to form a transmission pattern by baking a part of the skin material using a laser processing machine, it is necessary to irradiate the laser evenly over substantially the entire skin material except for the transmission pattern. Therefore, it is very time-consuming. This also leads to an increase in the cost of the interior parts.

[0008] As another means for providing a transmission pattern on the skin material, the skin material may be formed into a two-layer structure including a light-transmitting layer having light-transmitting properties and a light-shielding layer having light-shielding properties, and through-holes having a shape corresponding to the transmission pattern may be formed in the light-shielding layer. However, when using such a two-layer skin material, the material of the light-transmitting layer forming the surface of the skin material is limited to one that easily forms the light-shielding layer. For this reason, the degree of freedom in the material of the skin material is low, and there are few options for the design and touch feeling on the surface of the interior parts.

[0009] An object of the present disclosure is to provide a display panel capable of providing a light-transmitting display portion with good positional accuracy and having a wide variety of options for surface design and touch feeling.

Means for Solving the Problems

[0010] In order to achieve the above object, in the technology of the present disclosure, a light-shielding material having a transmission pattern formed thereon is provided separately on the back side of the skin material.

[0011] Specifically, the first aspect of the present disclosure targets a display panel. The display panel of the first aspect includes a base material, a cushion layer provided on the front side of the base material, a light-shielding material provided on the front side of the cushion layer, and a skin material that covers the front side of the light-shielding material and is wound around the back side of the base material. The light-shielding material has a light-transmitting layer with light-transmitting properties and a light-shielding layer with light-shielding properties provided on the surface of the light-transmitting layer. Through holes of a predetermined pattern are formed in the light-shielding layer. At least the portions of the base material, the cushion layer, and the skin material corresponding to the through holes have light-transmitting properties. By allowing the light irradiated from the back side of the base material to pass through the through holes and permeate the light-shielding material and the skin material, a light-transmitting display portion that can be lit in the pattern corresponding to the through holes is provided.

[0012] The second aspect of the present disclosure is a display panel in the display panel of the first aspect, wherein the light-shielding material has stretchability and is directly fixed to the base material.

[0013] The third aspect of the present disclosure is a display panel in the display panel of the first aspect, wherein the light-shielding material is fixed to the base material via the cushion layer.

[0014] The fourth aspect of the present disclosure targets a display lamp device. The display lamp device of the fourth aspect includes a display panel according to any one of the first to third aspects and a light source disposed on the back side of the base material. In this display lamp device, the light-transmitting display portion is lit by the light emitted from the light source.

[0015] The fifth aspect of the present disclosure targets a method for manufacturing a display panel according to any one of the first to third aspects. The method for manufacturing a display panel of the fifth aspect includes a step of providing the light-shielding material to the base material such that the light-shielding layer is positioned on the front side with the cushion layer interposed therebetween; a step of forming the through holes in the light-shielding layer by removing the light-shielding layer of the light-shielding material provided on the base material in a predetermined pattern; and a step of providing the skin material so as to cover the front side of the light-shielding material in which the through holes are formed and winding and fixing the skin material around the back side of the base material.

Advantages of the Invention

[0016] According to the first aspect, a light-shielding material including a light-shielding layer having through-holes is provided as a separate member from the skin material. The display panel can be manufactured by providing, with respect to a base material, a light-shielding material in a state without through-holes with a cushion layer interposed therebetween so that the light-shielding layer is positioned on the front side, and in that state, forming through-holes in the light-shielding layer with reference to the base material, and then providing a skin material so as to cover the front side of the light-shielding material having the through-holes formed therein. By doing so, it is possible to provide a light-transmitting display portion with good positional accuracy. Further, since the light-shielding layer is not provided integrally with the skin material, the material of the skin material is not restricted in relation to the light-shielding layer, the degree of freedom of the skin material is increased, and more options for design and touch feeling on the surface of the display panel can be provided.

[0017] According to the second aspect, the light-shielding material has elasticity. Thus, the light-shielding material can be easily and directly fixed to the base material by a method (wrapping method) of bonding the light-shielding material to the surface of the base material with a cushion layer and winding it around and fixing it to the back side of the base material.

[0018] According to the third aspect, the light-shielding material is fixed to the base material via a cushion layer. Therefore, by fixing the cushion layer to the base material, the light-shielding material can be easily fixed to the base material. Thus, it is not necessary to use the wrapping method to provide the light-shielding material on the base material. This is advantageous for simplifying the manufacture of the display panel.

[0019] According to the fourth aspect, a display lamp device includes a display panel. In the display panel, the positional accuracy of the light-transmitting display portion is good, and there are many options for design and touch feeling on the surface. Therefore, in the display lamp device, graphics and characters can be lit and displayed at the intended positions, and the design on the surface of the display panel can be elaborated or a high-quality touch feeling can be realized.

[0020] According to the fifth aspect, a light-shielding material is provided on a base material with a cushion layer interposed therebetween so that a light-shielding layer is located on the front side. In this state, after forming through holes in the light-shielding layer, a skin material is provided so as to cover the front side of the light-shielding material in which the through holes are formed. By doing so, a light-transmitting display portion can be provided with high positional accuracy. Further, since the light-shielding layer is not provided integrally with the skin material, the material of the skin material is not restricted in relation to the light-shielding layer, the degree of freedom of the skin material is increased, and more options for the design and touch feeling on the surface of the display panel can be provided.

Brief Description of Drawings

[0021]

Figure 1

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MODE FOR CARRYING OUT THE INVENTION

[0022] Hereinafter, exemplary embodiments will be described in detail with reference to the drawings. In the following embodiments, regarding the display panel and the display lamp device according to the present disclosure, an aspect applied to interior parts of a vehicle will be described by taking an instrument panel as an example. Note that the drawings are for conceptually explaining the technology of the present disclosure. Therefore, in the drawings, dimensions, ratios, or numbers may be exaggerated or simplified for easy understanding of the technology of the present disclosure.

[0023] 《Embodiment 1》 As shown in FIG. 1, the display lamp device 1 of this Embodiment 1 is incorporated in the instrument panel 3. The instrument panel 3 is a panel including an instrument panel on which various devices such as an engine tachometer and a speedometer are mounted, and is installed at the front part of the passenger compartment. The display lamp device 1 is located directly below the air-conditioning outlet 5 on the right side of the instrument panel 3.

[0024] -Configuration of the display lamp device- As shown in FIG. 2, the display lamp device 1 includes a display panel 10 and a lighting unit 60.

[0025] <Display panel> The display panel 10 shown in FIG. 1 is an interior member with a cushion layer 30. The display panel 10 has a translucent display portion 11 on its surface. The translucent display portion 11 constitutes the display lamp 13. The display lamp 13 in this example is provided as a predetermined character (shown as "ABC" for convenience in FIG. 1). When the display lamp 13 is lit, characters are displayed on the surface of the display panel 10 as shown in FIG. 1. The display panel 10 is configured such that the light irradiated from the back side of the base material 20 passes through the translucent display portion 11, enabling the display lamp 13 to be lit.

[0026] When light DL is not irradiated from the back side of the base material 20, the appearance of the translucent display portion 11 of the display panel 10 is the same as that of the other portions of the display panel 10. Therefore, the display lamp 13 cannot be visually recognized. In this way, the translucent display portion 11 changes the surface design of the display panel 10 by switching between lighting and extinguishing the display lamp 13. Further, the display panel 10 has a soft touch surface over substantially the entire area including each translucent display portion 11.

[0027] As shown in FIG. 2, the display panel 10 includes a base material 20, a cushion layer 30, a light shielding material 40, and a skin material 50.

[0028] <Base material> The base material 20 is a plate-like object made of a hard resin. The base material 20 has translucency and transmits the light DL related to the lighting display. The "translucency" mentioned here means the property of transmitting visible light. Also, "having translucency" includes being transparent or translucent. The thickness of the base material 20 is, for example, about 3 mm to 5 mm. The base material 20 is configured to include a front plate portion 21 and a side plate portion 23.

[0029] The instrument panel portion 21 is the main body portion of the base material 20. A first recessed portion 25 recessed on the back side is formed on substantially the entire surface of the instrument panel portion 21 except for the peripheral portion. The bottom surface of the first recessed portion 25 constitutes a surface facing the vehicle interior side, and the surface is formed in a shape slightly curved so as to form a gentle convex surface on the vehicle interior side. The side plate portion 23 extends from the peripheral end portion of the instrument panel portion 21 to the back side of the base material 20 and is provided in a frame shape at the periphery of the base material 20.

[0030] A plurality of bosses 27 (only two are shown in FIG. 2) are integrally provided on the back surface of the instrument panel portion 21. Each boss 27 is provided around the light-transmissive display portion 11 and protrudes to the back side of the base material 20. The plurality of bosses 27 are used as fixing portions for the lighting unit 60 with respect to the base material 20. Although not shown, bosses or fitting claws used for assembling to the instrument panel main body are provided on the back surface of the instrument panel portion 21 separately from the bosses 27.

[0031] The base material 20 is made of synthetic resin. Examples of the material of the base material 20 include polypropylene (PP) and polycarbonate (PC). The light transmittance in the thickness direction of the instrument panel portion 21 of the base material 20 is about 50% to 100%. The "light transmittance" referred to in this specification means the ratio of transmitting visible light. This light transmittance is measured in accordance with JIS K7361. As a measuring instrument for measuring the transmittance, for example, a spectro-radiometer SR-LEDW manufactured by Topcon Corporation is used.

[0032] <Cushion layer> The cushion layer 30 is fitted into the first recessed portion 25 and provided on the front side of the base material 20. The cushion layer 30 is formed in a plate shape or a sheet shape. The cushion layer 30 is disposed between the base material 20 and the light-shielding material 40. The thickness of the cushion layer 30 is, for example, 3 mm to 10 mm. The cushion layer 30 has both flexibility and elasticity and serves to impart flexibility to the surface of the display panel 10.

[0033] The cushion layer 30 has a relatively low hardness. The surface hardness of the cushion layer 30 is about 20 to 55 when measured using, for example, an Asker rubber hardness meter type C manufactured by ASKER. The cushion layer 30 has translucency and transmits the light DL related to the lighting display. The light transmittance in the thickness direction of the cushion layer 30 is about 30% to 100%, for example.

[0034] The cushion layer 30 is made of a porous material. Examples of the material of the cushion layer 30 include polyurethanes (PU) such as non-yellowing urethane, and foamed resins such as foamed silicone. The cushion layer 30 may be constituted by a three-dimensional structure mesh or other members having cushioning properties.

[0035] <Light-shielding material> The light-shielding material 40 is a sheet-like object that blocks the light DL except for the portion corresponding to the light-transmitting display portion 11. The light-shielding material 40 covers the front side of the cushion layer 30 and the front side of the base material 20 excluding the first recess 25, and is provided in a state of being stretched over the surface of the base material 20 with the cushion layer 30. The outer peripheral side portion of the light-shielding material 40 covers the side plate portion 23 of the base material 20 and is wound around the back side of the base material 20, and is fixed to the base material 20 with the first staple 47. Thus, the light-shielding material 40 of this example is directly fixed to the base material 20.

[0036] The light-shielding material 40 has both stretchability and flexibility. For example, the elongation rate of the light-shielding material 40 in the machine direction (MD direction) is about 500% to 600%, and the elongation rate of the light-shielding material 40 in the transverse direction (TD direction) is about 650 to 750%. These elongation rates are measured in accordance with JIS K7127. As a measuring instrument for measuring the elongation rate, for example, a Strograph VE (model VES05D) manufactured by Toyo Seiki Seisakusho is used.

[0037] As shown in FIG. 3, the light-shielding material 40 has a light-transmitting layer 41 and a light-shielding layer 43.

[0038] The light-transmitting layer 41 is the base sheet of the light-shielding material 40. The thickness of the light-transmitting layer 41 is, for example, about 50 μm. The light-transmitting layer 41 has light-transmitting properties. The light transmittance in the thickness direction of the light-transmitting layer 41 is, for example, about 70% to 100%. The light-transmitting layer 41 in this example contains pigments such as black, but the content is relatively small and it has light-transmitting properties. The light-transmitting layer 41 exhibits a smoky color of a gray tone.

[0039] The light-transmitting layer 41 is made of a synthetic resin containing pigments. Examples of the material of the light-transmitting layer 41 include polyvinyl chloride (PVC), thermoplastic olefin (TPO), thermoplastic urethane (TPU), etc. A material suitable for the adopted molding method is used for the material of the light-transmitting layer 41. Examples of the molding method of the light-transmitting layer 41 will be described later.

[0040] The light-shielding layer 43 is provided on the surface of the light-transmitting layer 41. The light-shielding layer 43 is a layer that blocks the light DL that tries to pass from the back side to the front side of the display panel 10. The light-shielding layer 43 is composed of a paint containing a black pigment and has light-shielding properties. The thickness of the light-shielding layer 43 is, for example, about 3 μm. The light transmittance in the thickness direction of the light-shielding layer 43 is, for example, 0%.

[0041] Through holes 45 for passing the light DL are formed in the portions of the light-shielding layer 43 that constitute each light-transmitting display portion 11. The through holes 45 penetrate the light-transmitting layer 41 and have the shape of a predetermined pattern for lighting display. The through holes 45 are formed in the same shape (a character shape in this example) as the display lamp 13. The light-shielding layer 43 transmits the light DL through the through holes 45.

[0042] <Skin material> As shown in FIGS. 2 and 3, the skin material 50 is a sheet-like material that constitutes the surface of the display panel 10. The skin material 50 is provided with the light-shielding material 40 and the cushion layer 30 interposed therebetween and the base material 20. The skin material 50 covers the front side of the light-shielding material 40 and is provided in a state of being stretched over the surface of the display panel 10. Each through hole 45 of the light-shielding material 40 is shielded from the front side by the skin material 50. The outer peripheral portion of the skin material 50 covers the side plate portion 23 of the base material 20 through the light-shielding material 40 and is wound around the back side of the base material 20 and fixed to the base material 20 with the second staple 55.

[0043] The skin material 50 is constituted by, for example, a resin sheet made of polyvinyl chloride (PVC), thermoplastic polyurethane (TPU), or the like. The skin material 50 may be constituted by a fabric sheet made of chemical fibers such as polyester (PES) and rayon, or natural fibers such as silk, cotton, and hemp. The skin material 50 may be constituted by a sheet material provided with a backing material made of polypropylene (PP), polyethylene (PE), acrylonitrile-butadiene-styrene resin (ABS resin), polycarbonate (PC), thermoplastic olefin (TPO), or the like, with respect to those resin sheets or fabric sheets.

[0044] The skin material 50 has both stretchability and flexibility. The thickness of the skin material 50 is, for example, about 0.1 mm to 3.0 mm. The skin material 50 has light transmissivity and transmits the light DL related to the lighting display. The light transmittance in the thickness direction of the skin material 50 is about 5% to 50%. The "light transmittance" as used herein includes the light DL that passes through the weave of the fabric sheet when the skin material 50 is constituted by a fabric sheet.

[0045] <Lighting unit> The lighting unit 60 is a component that illuminates the light-transmitting display portion 11 of the display panel 10 from the back side. The lighting unit 60 is disposed on the back side of the display panel 10. The lighting unit 60 includes an inner panel 61 and an LED (Light Emitting Diode) 63. The LED 63 is an example of a light source.

[0046] The inner panel 61 is fixed to a plurality of bosses 27 on the base material 20 using tapping screws 65. The inner panel 61 is positioned at a distance from the portion corresponding to the light-transmitting display portion 11 of the base material 20. The LED 63 is provided on the inner panel 61 and is disposed on the back side of the base material 20. The LED 63 is located at a position corresponding to the light-transmitting display portion 11 and emits light DL (strictly visible light) toward the light-transmitting display portion 11.

[0047] In the indicator lamp device 1, the light DL emitted by the LED 63 irradiates the display panel 10 from the back side of the base material 20. This light DL passes through the base material 20 and the cushion layer 30 and illuminates the corresponding light-transmitting display portion 11 from the back side. The illumination light DL passes through the light-shielding material 40 and the skin material 50 through the through holes 45, thereby projecting the indicator lamp 13. As a result, the light-transmitting display portion 11 lights up the indicator lamp 13.

[0048] As described above, in the indicator lamp device 1, the light-transmitting display portion 11 is turned on by the operation of the lighting unit 60. Also in the light-transmitting display portion 11, when the LED 63 is not lit, only the pattern and color presented by the skin material 50 of the display panel 10 are visible.

[0049] -Method for manufacturing an indicator lamp device- The method for manufacturing the indicator lamp device 1 of this Embodiment 1 includes a display panel manufacturing process and a third assembly process.

[0050] <Display panel manufacturing process> The display panel manufacturing process is a process for manufacturing the display panel 10. The display panel manufacturing process includes a preparation process, a first assembly process, a through hole forming process, and a second assembly process.

[0051] <Preparation process> The preparation process is a process for preparing each component constituting the display panel 10. In this example, the base material 20, the cushion layer 30, the light-shielding material 40 in a state without through holes 45, and the skin material 50 are prepared.

[0052] Specifically, the base material 20 is molded by injection molding. Also, the cushion layer 30 is obtained by punching or cutting a large-sized cushion material obtained by foam molding in advance. Further, the light-shielding material 40 and the skin material 50 are obtained by punching or cutting a large-sized sheet material prepared in advance. The sheet material used for the light-shielding material 40 is produced by forming a light-shielding layer 43 on the surface of the light-transmitting layer 41.

[0053] The light-transmitting layer 41 is formed into a film shape by extrusion molding or the like. The light-shielding layer 43 is formed by spray coating, screen printing, or the like. The light-shielding layer 43 is composed of a light-shielding film such as polyethylene terephthalate (PET), and the light-shielding film may be provided by attaching it to the surface of the light-transmitting layer 41.

[0054] <First assembly process> After the preparation process, the first assembly process is performed. The first assembly process is a process of assembling the cushion layer 30 and the light-shielding material 40 to the base material 20.

[0055] As shown in FIG. 4, in the first assembly process, first, the cushion layer 30 is fitted into the first recess 25 of the base material 20 and arranged to abut against the bottom surface of the first recess 25. Subsequently, the light-shielding material 40 is placed on the surface of the base material 20 with the cushion layer 30, and the light-shielding layer 43 is provided so as to be positioned on the front side with the cushion layer 30 interposed therebetween. At this time, the outer peripheral side portion of the light-shielding material 40 is bent so as to cover the outer peripheral surface of the side plate portion 23 of the base material 20 and is wound around the back side of the base material 20, and the light-shielding material 40 is stretched over the surface of the base material 20 with the cushion layer 30. In that state, the wound end portion of the light-shielding material 40 is fixed to the side plate portion 23 by driving the first staple 47 with a tacker. In this way, the first intermediate assembly 101 is produced.

[0056] <Perforation forming process> After the first assembly process, the perforation forming process is performed. The perforation forming process is a process of forming perforations 45 in the light-shielding material 40 provided on the base material 20.

[0057] As shown in FIG. 5, in the through-hole forming step, first, the first intermediate assembly 101 is placed on the receiving jig 201 with the light-shielding layer 43 facing upward. Next, based on the position of the first intermediate assembly 101, the removal site of the light-shielding layer 43 is positioned. In this example, the positioning of the removal site of the light-shielding layer 43 is performed based on the position of the receiving jig 201. Also in this case, since the first intermediate assembly 101 is placed on the receiving jig 201, it is equivalent to positioning with the first intermediate assembly 101 as a reference.

[0058] Then, laser processing is performed on the light-shielding material 40 of the first intermediate assembly 101. Specifically, using the laser irradiation device 301, the laser light BL is irradiated onto the positioned removal site in the light-shielding layer 43 of the light-shielding material 40, thereby removing the light-shielding layer 43 in a predetermined pattern (the shape of the display lamp 13). By doing so, a through-hole 45 having a shape corresponding to the display lamp 13 is formed in the light-shielding layer 43. In this way, the second intermediate assembly 102 is manufactured.

[0059] <Second Assembly Step> After the through-hole forming step, the second assembly step is performed. The second assembly step is a step of assembling the skin material 50 to the second intermediate assembly 102.

[0060] As shown in FIG. 6, in the second assembly step, the skin material 50 is placed on the surface of the second intermediate assembly 102, and the skin material 50 is provided so as to cover the front side of the light-shielding material 40 in which the through-hole 45 is formed. At this time, the outer peripheral portion of the skin material 50 is bent so as to cover the outer peripheral surface of the side plate portion 23 of the base material 20 through the light-shielding material 40 and is wound around the back side of the base material 20, and the skin material 50 is placed in a state of being stretched on the surface of the second intermediate assembly 102. In that state, the wound end portion of the skin material 50 is fixed to the side plate portion 23 by driving the second staple 55 with a tacker.

[0061] In this way, the display panel 10 can be manufactured.

[0062] <Third Assembly Step> After the display panel manufacturing process, a third assembly process is performed. The third assembly process is a process of assembling the lighting unit 60 to the display panel 10.

[0063] Before performing the third assembly process, in addition to the display panel 10 manufactured in the display panel manufacturing process, prepare the components constituting the lighting unit 60, that is, the inner panel 61 with the LED 63 installed, on which the LED 63 is installed. In the third assembly process, first, place the inner panel 61 with the LED 63 installed on the back side of the base material 20, and align the mounting portion of the inner panel 61 with the end face of each boss 27 of the base material 20. Then, fix the mounting portion of the inner panel 61 to each boss 27 of the base material 20 using a tapping screw 65.

[0064] In the above manner, the display lamp device 1 can be manufactured.

[0065] -Features of Embodiment 1- In the display panel 10 of this Embodiment 1, a light-shielding material 40 including a light-shielding layer 43 in which through holes 45 are formed is provided as a separate member from the skin material 50. The display panel 10 is provided with the light-shielding material 40 in a state without through holes 45 with respect to the base material 20, with a cushion layer 30 interposed between the base material 20 and the light-shielding layer 43 positioned on the front side. In that state, after forming the through holes 45 in the light-shielding layer 43 with reference to the base material 20, the skin material 50 is provided so as to cover the front side of the light-shielding material 40 in which the through holes 45 are formed, whereby it can be manufactured. By doing so, it is possible to provide the light-transmitting display portion 11 with good positional accuracy. Further, since the light-shielding layer 43 is not provided integrally with the skin material 50, the material of the skin material 50 is not restricted in relation to the light-shielding layer 43, the degree of freedom of the skin material 50 is increased, and more options for the design and touch feeling on the surface of the display panel 10 can be provided.

[0066] In the display panel 10 of this Embodiment 1, the light-shielding layer 43 of the light-shielding material 40 is in contact with the skin material 50. According to this, compared with the case where another layer or member is interposed between the light-shielding layer 43 and the skin material 50, it is possible to suppress the occurrence of light blur in the lighting display at the light-transmitting display portion 11.

[0067] In the display panel 10 of the first embodiment, the light-shielding material 40 has elasticity. Therefore, the light-shielding material 40 can be easily and directly fixed to the base material 20 by a method (the winding method) of bonding the light-shielding material 40 to the surface of the base material 20 with the cushion layer 30 and winding it around and fixing it to the back side of the base material 20.

[0068] The display lamp device 1 of the first embodiment includes a display panel 10. In the display panel 10, the positional accuracy of the light-transmitting display portion 11 is good, and there are many options for the design and touch feeling on the surface. Therefore, in the display lamp device 1, the display lamp 13 can be lit and displayed at the target position, and the design on the surface of the display panel 10 can be elaborated or a high-quality touch can be realized.

[0069] In the manufacturing method of the display panel 10 of the first embodiment, with respect to the base material 20, the light-shielding material 40 is provided with the cushion layer 30 interposed therebetween so that the light-shielding layer 43 is located on the front side. In this state, after forming the through holes 45 in the light-shielding layer 43, the skin material 50 is provided so as to cover the front side of the light-shielding material 40 in which the through holes 45 are formed. By doing so, the light-transmitting display portion 11 can be provided with good positional accuracy. Further, since the light-shielding layer 43 is not provided integrally with the skin material 50, the material of the skin material 50 is not limited in relation to the light-shielding layer 43, the degree of freedom of the skin material 50 is increased, and the options for the design and touch feeling on the surface of the display panel 10 can be increased.

[0070] <<Second Embodiment>> In the display lamp device 1 of the second embodiment, the configurations of the base material 20 and the cushion layer 30 of the display panel 10 and the inner panel 61 of the lighting unit 60, the point of having a plurality of light-transmitting display portions 11 that can be individually lit, and the point of having a touch operation function are different from those of the first embodiment. In the second embodiment, only the configuration different from that of the first embodiment will be described for the display lamp device 1, and the matters related to the same configuration as that of the first embodiment will be left to the description of the first embodiment, and the detailed description thereof will be omitted.

[0071] -Configuration of the display lamp device- The indicator light device 1 of this Embodiment 2 has the function of a switch and constitutes a cluster switch 7 as shown in FIG. 7. The display panel 10 also serves as the operation unit 9 of the switch. As shown in FIG. 8, the display panel 10 includes a touch sensor sheet 70 for realizing the operation unit 9.

[0072] <Display panel> The display panel 10 shown in FIG. 7 is an interior member with a cushion layer 30. The display panel 10 has a plurality of light-transmitting display portions 11 (three light-transmitting display portions 11 in this example) on its surface. The plurality of light-transmitting display portions 11 are provided at intervals in the vehicle width direction. Each light-transmitting display portion 11 constitutes an indicator light 13.

[0073] The indicator light 13 in this example is provided as a predetermined icon (shown as "△", "○", "□" for convenience in FIG. 7). When the indicator light 13 is lit, a figure is displayed on the surface of the display panel 10 as shown in FIG. 7. Each icon displayed by the plurality of light-transmitting display portions 11 is a different figure and indicates a different in-vehicle system. The indicator light 13 formed by each light-transmitting display portion 11 may represent the operating state (operating / stopped) of the corresponding in-vehicle system according to the presence or absence of the icon being lit.

[0074] <Base material> A second recess 29 that is recessed toward the front side is formed at a portion corresponding to the display portion 12 on the back surface of the front plate portion 21 of the base material 20. The depth of the second recess 29 is, for example, about 0.5 mm to 3.0 mm. To illustrate the thickness of the front plate portion 21, the thickness of the general portion of the front plate portion 21 other than the portion where the second recess 29 is formed is about 3.0 mm to 5.0 mm, and the thickness of the portion of the front plate portion 21 where the second recess 29 is formed is about 1.0 mm to 2.0 mm.

[0075] In this way, the thickness of the portion of the front plate portion 21 where the second recess 29 is formed is thinner than the thickness of the other portions of the front plate portion 21. Because of this, the light transmittance in the thickness direction of the front plate portion 21 is higher in the portion where the second recess 29 is formed than in the other portions. The bottom surface of the second recess 29 may be curved so as to follow the bottom surface of the first recess 25 (the surface of the base material 20), or may be a flat surface.

[0076] <Touch sensor sheet> A plurality of touch sensor sheets 70 are provided corresponding to each light-transmitting display unit 11, and are components for individually detecting touch operations on each light-transmitting display unit 11 of the display panel 10. The touch sensor sheet 70 is housed in the second recess 29 of the base material 20. The touch sensor sheet 70 is adhered to the bottom surface of the second recess 29 by a double-sided adhesive tape, an adhesive, etc., and constitutes a capacitive switch. The touch sensor sheet 70 has light-transmitting properties and transmits the light DL related to the lighting display.

[0077] The touch sensor sheet 70 includes detection electrodes (not shown). The detection electrodes are electrodes for detecting touch operations. The detection electrodes are located at positions corresponding to each light-transmitting display unit 11. The touch sensor sheet 70 is electrically connected to a touch detection circuit (not shown). The touch detection circuit detects a touch operation on the light-transmitting display unit 11 by the user based on a change in the capacitance formed by the detection electrodes.

[0078] <Cushion layer> The cushion layer 30 is configured to include a first cushion material 31 and a plurality of second cushion materials 35. The first cushion material 31 is formed in a plate shape or a sheet shape. The first cushion material 31 is provided at a site corresponding to outside each light-transmitting display unit 11. The first cushion material 31 is housed in the first recess 25 and substantially fills the inside of the first recess 25 without a gap. A plurality of openings 33 are formed in the first cushion material 31. Each individual opening 33 corresponds to the second recess 29 and constitutes the light-transmitting display unit 11.

[0079] The first cushion material 31 does not necessarily have light-transmitting properties. The first cushion material 31 is made of a foamed resin such as foamed polyurethane (PU), and has light-shielding properties. The thickness of the first cushion material 31 is, for example, about 3 mm to 10 mm. The light transmittance in the thickness direction of the first cushion material 31 is, for example, about 0% to 5%. The surface hardness of the first cushion material 31 is, for example, about 20 to 55 when measured using a Type C Asker rubber hardness meter manufactured by ASKER Co., Ltd.

[0080] The second cushion material 35 is provided at a position corresponding to each light-transmitting display portion 11. The second cushion material 35 is formed in a plate shape or a sheet shape. The second cushion material 35 is fitted into the opening 33 of the first cushion material 31 and substantially fills the inside of the opening 33 without a gap. Between adjacent second cushion materials 35, a part of the first cushion material 31 is partitioned and shielded from light. The second cushion material 35 is surrounded by the first cushion material 31. The second cushion material 35 is covered together with the first cushion material 31 by a light-shielding material 40 and corresponds to the through-hole 45.

[0081] The second cushion material 35 has light-transmitting properties and transmits the light DL related to the lighting display. The second cushion material 35 is made of a foamed resin having excellent transparency such as non-yellowing urethane, for example. The second cushion material 35 may be composed of a three-dimensional structure mesh, a high-foamed polypropylene sheet, or other members having cushioning properties. Non-yellowing urethane is preferable as the material of the second cushion material 35 because it is advantageous in terms of processability and cost.

[0082] The thickness of the second cushion material 35 is, for example, about the same as the thickness of the first cushion material 31 (about 3 mm to 10 mm). The light transmittance in the thickness direction of the second cushion material 35 is, for example, about 30% to 100%. The surface hardness of the second cushion material 35 is, for example, about the same as that of the first cushion material 31 (about 20 to 55) when measured using an Asker rubber hardness meter type C manufactured by ASKER Co., Ltd.

[0083] <Inner panel> A light-shielding wall 62 is provided on the inner panel 61. The light-shielding wall 62 protrudes to the front side (display panel 10 side) of the inner panel 61 and is formed in a frame shape so as to correspond to the inner peripheral portion of the second recess 29. The light-shielding wall 62 partitions the space for accommodating the LED 63. The tip portion of the light-shielding wall 62 is fitted into the second recess 29 of the base material 20, and the outer edge portion of the touch sensor sheet 70 is sandwiched between the base material 20 (the bottom surface of the second recess 29).

[0084] The light-shielding walls 62 corresponding to the plurality of light-transmitting display portions 11 are integrally provided so as to be continuous with each other. The light-shielding walls 62 may be provided individually for each light-transmitting display portion 11. The LEDs 63 are arranged in the respective portions surrounded by the light-shielding walls 62 of the inner panel 61. The light DL emitted by each LED 63 spreads as it travels toward the display panel 10 side, but is blocked by the light-shielding wall 62. For this reason, leakage to the light-transmitting display portions 11 other than the light-transmitting display portion 11 corresponding to the LED 63 is suppressed.

[0085] In the indicator lamp device 1, when the light DL emitted by each LED 63 irradiates the display panel 10 from the back side of the base material 20, it passes through the base material 20 and the second cushioning material 35, and further passes through the light-shielding material 40 and the skin material 50 through the through holes 45, whereby the light-transmitting display portion 11 turns on the indicator lamp 13 for display. The plurality of LEDs 63 are selectively turned on. As a result, each light-transmitting display portion 11 is switched between a lit state and an extinguished state, for example, according to the operating state of the in-vehicle system corresponding to the icon of the indicator lamp 13.

[0086] Also, in the indicator lamp device 1, each light-transmitting display portion 11 of the display panel 10 also functions as an operation portion 9 of a switch that receives a touch operation by the user. For example, a touch operation on each light-transmitting display portion 11 switches the operating state of the in-vehicle system. When the indicator lamp device 1 detects a touch operation on the light-transmitting display portion 11, it outputs a signal for switching the operating state of the in-vehicle system corresponding to the light-transmitting display portion 11 to the control device of the system, and also switches the lit state of the light-transmitting display portion 11.

[0087] - Method for manufacturing an indicator lamp device - The method for manufacturing the indicator lamp device 1 of this Embodiment 2 includes a display panel manufacturing process and a third assembly process, similar to Embodiment 1 above.

[0088] <Display panel manufacturing process> The display panel manufacturing process includes a preparation process, a first assembly process, a through hole forming process, and a second assembly process, similar to Embodiment 1 above.

[0089] <Preparation process> In the preparation process, a base material 20, a first cushion material 31, a second cushion material 35, a light-shielding material 40 without through holes 45, and a skin material 50 are prepared. In this process, the first cushion material 31 and the second cushion material 35 are obtained by punching or cutting a large-sized cushion material obtained by previously foam molding or the like. Also, the base material 20, the light-shielding material 40, and the skin material 50 are prepared in the same manner as in the first embodiment.

[0090] <First assembly process> As shown in FIG. 9, in the first assembly process, first, the first cushion material 31 is fitted into the first recess 25 of the base material 20 and arranged to abut against the bottom surface of the first recess 25. Subsequently, the second cushion material 35 is fitted into the opening 33 of the first cushion material 31 and arranged to abut against the bottom surface of the first recess 25. The first cushion material 31 and the second cushion material 35 may be integrally fitted into the first recess 25 of the base material 20 in a state where the second cushion material 35 is fitted into the opening 33 of the first cushion material 31.

[0091] Next, in the same manner as in the first embodiment, the light-shielding material 40 is placed on the surface of the base material 20 with the cushion layer 30, and the light-shielding layer 43 is positioned on the front side with the cushion layer 30 interposed between the base material 20 and the light-shielding material 40, and is provided in a state of being stretched on the surface of the base material 20. At this time, the outer peripheral portion of the light-shielding material 40 is wound around the back side of the base material 20, and the wound end portion of the light-shielding material 40 is fixed to the side plate portion 23 by driving the first staple 47 with a tacker. Then, the first intermediate assembly 101 is manufactured.

[0092] <Through hole forming process> As shown in FIG. 10, in the through hole forming process, in the same manner as in the first embodiment, the first intermediate assembly 101 is placed on the receiving jig 201, and the removal portion of the light-shielding layer 43 is positioned with reference to the position of the first intermediate assembly 101 (the position of the receiving jig 201). Then, laser processing using a laser irradiation device 301 is performed on the skin material 40 of the first intermediate assembly 101, and the light-shielding layer 43 is removed in a predetermined pattern to form through holes 45 in the light-shielding layer 43. Then, the second intermediate assembly 102 is manufactured.

[0093] <Second assembly process> As shown in FIG. 11, in the second assembly process, in the same manner as in the first embodiment, the surface skin material 50 is covered on the surface of the second intermediate assembly 102, and the skin material 50 is provided so as to cover the front side of the light-shielding material 40 in which the through holes 45 are formed. At this time, the outer peripheral portion of the skin material 50 is wound around the back side of the base material 20, and the wound end portion of the skin material 50 is fixed to the side plate portion 23 by driving the second staple 55 with a tacker. In this way, the display panel 10 can be manufactured.

[0094] <Third assembly process> The third assembly process is a process of assembling the touch sensor sheet 70 together with the lighting unit 60 to the display panel 10. Before performing the third assembly process, in addition to the display panel 10 and the inner panel 61 in which the LEDs 63 are installed, the touch sensor sheet 70 is prepared.

[0095] In the third assembly process, first, the touch sensor sheet 70 is fitted into the second recess 29 of the base material 20 and fixed to the bottom surface of the second recess 29 with an adhesive. Then, the lighting unit 60 is assembled to the display panel 10. Specifically, the tip portion of the light-shielding wall 62 of the inner panel 61 is fitted into the second recess 29 to position the lighting unit 60 with respect to the display panel 10. Then, the inner panel 61 is attached to the display panel 10 by fixing it to each boss 27 of the base material 20 using the tapping screw 65. Alternatively, the touch sensor sheet 70 may be attached in advance to the tip portion of the light-shielding wall 62 of the lighting unit 60 and the tip portion of the light-shielding wall 62 may be fitted into the second recess 29.

[0096] As described above, the display lamp device 1 can be manufactured.

[0097] -Features of Embodiment 2- In the display panel 10 of this second embodiment, the touch sensor sheet 70 is incorporated into the display portion 12, and each translucent display portion 11 functions as an operation portion 9 of the switch. According to this, a switch group such as the cluster switch 7 can be realized beautifully.

[0098] In the display lamp device 1 of this Embodiment 2, the inner panel 61 has a light-shielding wall 62 that partitions the space for accommodating the LEDs 63. The light DL emitted by each LED 63 is blocked by the light-shielding wall 62. As a result, each light-transmitting display portion 11 can be individually lit and displayed.

[0099] In the display lamp device 1 of this Embodiment 2, while the second cushioning material 35 provided at the portion corresponding to each light-transmitting display portion 11 in the cushioning layer 30 has light-transmitting properties, the first cushioning material 31 provided at the portion corresponding to the portions other than each light-transmitting display portion 11 has light-shielding properties. According to this, it is possible to suppress the leakage of the light DL through the cushioning layer 30 between adjacent light-transmitting display portions 11.

[0100] <<Embodiment 3>> In the display lamp device 1 of this Embodiment 3, the configuration of the light-shielding material 40 of the display panel 10 is different from that of the above Embodiment 2. In this Embodiment 3, only the configuration different from that of the above Embodiment 2 will be described for the display lamp device 1, and the matters related to the same configuration as that of the above Embodiment 2 will be left to the descriptions of the above Embodiments 1 and 2, and the detailed description thereof will be omitted.

[0101] -Configuration of the display lamp device- In the display panel 10 of this Embodiment 3, as shown in FIG. 12, the light-shielding material 40 is fixed to the base material 20 via the cushioning layer 30. Specifically, the light-shielding material 40 is attached to the surfaces of the first cushioning material 31 and each second cushioning material 35 via a transparent or translucent adhesive 49. The attaching surface of the light-shielding material 40 is the back surface formed by the light-transmitting layer 41. Then, the first cushioning material 31 and each second cushioning material 35 are attached to the bottom surface of the first recess 25 of the base material 20 using a bonding material 37 such as a double-sided adhesive tape or a double-sided pressure-sensitive adhesive tape.

[0102] -Manufacturing method of the display lamp device- The method for manufacturing the display lamp device 1 of this Embodiment 2 includes a display panel manufacturing process and a third assembly process, similar to the above Embodiment 1.

[0103] <Display panel manufacturing process> The display panel manufacturing process includes a preparation process, a first assembly process, a through-hole forming process, and a second assembly process, similar to Embodiment 1 above.

[0104] <Preparation process> In the preparation process, a base material 20, a first cushion material 31, a second cushion material 35, a light-shielding material 40 without through-holes 45, and a skin material 50 are prepared. In this process, the base material 20, the first cushion material 31, the second cushion material 35, the light-shielding material 40, and the skin material 50 are prepared in the same manner as in Embodiment 2 above. As shown in FIG. 13, an adhesive 49 is applied to the back surface of the light-shielding material 40. Then, the first cushion material 31 and the second cushion material 35 are bonded to the back surface (the surface on the light-transmitting layer 41 side) of the light-shielding material 40 via the adhesive 49. In this way, a cushion layer 30 with a light-shielding material 40 is produced.

[0105] <First assembly process> As shown in FIG. 14, in the first assembly process, a bonding material 37 is attached and provided on the bottom surface of the first recess 25 of the base material 20. Next, the cushion layer 30 with the light-shielding material 40 is fitted into the first recess 25 of the base material 20 and arranged facing the bottom surface of the first recess 25. By doing so, the cushion layer 30 is adhered to the bottom surface of the first recess 25 via the bonding material 37. Also, with respect to the base material 20, the light-shielding material 40 is provided such that the light-shielding layer 43 is located on the front side with the cushion layer 30 interposed between the base material 20 and the light-shielding material 40. In this way, a first intermediate assembly 101 is produced.

[0106] <Through-hole forming process> As shown in FIG. 15, in the through-hole forming process, in the same manner as in Embodiment 1, the first intermediate assembly 101 is placed on a receiving jig 201, and the removal site of the light-shielding layer 43 is positioned with reference to the position of the first intermediate assembly 101 (the position of the receiving jig 201). Then, laser processing using a laser irradiation device 301 is performed on the skin material 40 of the first intermediate assembly 101 to remove the light-shielding layer 43 in a predetermined pattern, thereby forming through-holes 45 in the light-shielding layer 43. Thus, a second intermediate assembly 102 is produced.

[0107] <Second assembly process> As shown in Fig. 16, in the second assembly process, in the same manner as in the first embodiment, the surface skin material 50 is placed on the surface of the second intermediate assembly 102, and the skin material 50 is provided so as to cover the front side of the light-shielding material 40 in which the through holes 45 are formed. At this time, the outer peripheral portion of the skin material 50 is wound around the back side of the base material 20, and the wound end portion of the skin material 50 is fixed to the side plate portion 23 by driving the second staple 55 with a tacker. In this way, the display panel 10 can be manufactured.

[0108] <Third assembly process> The third assembly process is a process of assembling the touch sensor sheet 70 together with the lighting unit 60 to the display panel 10. Before performing the third assembly process, in addition to the display panel 10 and the inner panel 61 in which the LEDs 63 are installed, the touch sensor sheet 70 is prepared.

[0109] In the third assembly process, first, the touch sensor sheet 70 is fitted into the second recess 29 of the base material 20 and fixed to the bottom surface of the second recess 29 with an adhesive. Then, the lighting unit 60 is assembled to the display panel 10. Specifically, the tip portion of the light-shielding wall 62 of the inner panel 61 is fitted into the second recess 29, and the lighting unit 60 is positioned with respect to the display panel 10. Then, the inner panel 61 is fixed to each boss 27 of the base material 20 using the tapping screw 65, thereby attaching it to the display panel 10.

[0110] As described above, the display lamp device 1 can be manufactured.

[0111] -Features of Embodiment 3- In the display panel 10 of this Embodiment 3, the light-shielding material 40 is fixed to the base material 20 via the cushion layer 30. Therefore, by fixing the cushion layer 30 to the base material 20, the light-shielding material 40 can be easily fixed to the base material 20. Thus, it is not necessary to use a winding method to provide the light-shielding material 40 on the base material 20. This is advantageous for simplifying the manufacture of the display panel 10.

[0112] 《Other Embodiments》 In the above-described Embodiment 1, an embodiment in which the base material 20, the cushion layer 30, and the skin material 50 are entirely translucent has been exemplified, but the present invention is not limited thereto. It is sufficient that at least the portions of the base material 20, the cushion layer 30, and the skin material 50 corresponding to the through holes 45 have translucency. This is the same in the above-described Embodiments 2 and 3.

[0113] In the above-described embodiment, the side plate portion 23 of the base material 20 is provided in a frame shape, but the present invention is not limited thereto. For example, the pair of side plate portions 23 of the base material 20 may be provided only at the upper and lower edges of the base material 20 or only at the left and right ends of the base material 20.

[0114] In the above-described embodiment, the case where the characters or icons are lit and displayed on the display panel 10 according to the shape of the through holes 45 has been exemplified, but the present invention is not limited thereto. The object lit and displayed on the display panel 10 may be symbols, figures, patterns, etc. other than characters and icons, and may take any pattern.

[0115] In the above-described embodiment, the case where the display lamp device 1 is incorporated into the instrument panel 3 has been exemplified and described, but the present invention is not limited thereto. The display panel 10 and the display lamp device 1 including the same according to the present disclosure can also be incorporated into other vehicle interior parts such as the lid of the console box, door trim, pillar trim, and sun visor. Further, the display lamp device 1 according to the present disclosure can be widely applied to various products other than vehicle applications, such as home appliances and game machines.

[0116] As described above, the preferred embodiments have been described as examples of the technology of the present disclosure. However, the technology of the present disclosure is not limited thereto, and can also be applied to embodiments in which changes, replacements, additions, omissions, etc. are appropriately made. It is understood by those skilled in the art that various further modifications are possible within the scope not departing from the spirit of the technology of the present disclosure, and such modifications also belong to the scope of the technology of the present disclosure.

[0117] Note that the descriptions such as "first", "second",... mentioned above are only used to distinguish the terms to which these descriptions are given, and do not limit the number or order of these terms. Also, the description "~" of the numerical range described above means a range including the numerical values before and after it. That is, if X and Y are substituted for numerical values, the description "X~Y" indicates a range of "X or more and Y or less".

Industrial Applicability

[0118] As described above, the present disclosure is useful for a display panel, a display lamp device including the same, and a method for manufacturing a display panel.

Explanation of Reference Numerals

[0119] DL light 1 Display lamp device 10 Display panel 11 Translucent display part 20 Base material 30 Cushion layer 40 Light-shielding material 41 Translucent layer 43 Light-shielding layer 45 Through hole 50 Skin material 63 LED (light source)

Claims

1. a base material (20); a cushion layer (30) provided on the front side of the base material (20); a light-shielding material (40) provided on the front side of the cushion layer (30); a skin material (50) covering the front side of the light-shielding material (40) and being wound around the back side of the base material (20), and the light-shielding material (40) has a light-transmitting layer (41) having light-transmitting properties and a light-shielding layer (43) having light-shielding properties provided on the surface of the light-transmitting layer (41); a through-hole (45) of a predetermined pattern is formed in the light-shielding layer (43); at least the portions of the base material (20), the cushion layer (30), and the skin material (50) corresponding to the through-hole (45) have light-transmitting properties; a light-transmitting display portion (11) that can be lit in a pattern corresponding to the through-hole (45) is provided by light (DL) irradiated from the back side of the base material (20) passing through the through-hole (45) and transmitting through the light-shielding material (40) and the skin material (50). A display panel characterized by the above.

2. In the display panel according to Claim 1, the light-shielding material (40) has elasticity and is directly fixed to the base material (20). A display panel characterized by the above.

3. In the display panel according to Claim 1, the light-shielding material (40) is fixed to the base material (20) via the cushion layer (30). A display panel characterized by the above.

4. A display lamp device comprising the display panel (10) according to any one of Claims 1 to 3 and a light source (63) disposed on the back side of the base material (20), wherein the light-transmitting display portion (11) is lit by the light (DL) emitted by the light source (63). A display lamp device characterized by the above.

5. A method for manufacturing the display panel according to any one of Claims 1 to 3, the method comprising: a step of providing the light-shielding material (40) to the base material (20) such that the light-shielding layer (43) is positioned on the front side with the cushion layer (30) interposed therebetween; a step of forming the through-hole (45) in the light-shielding layer (43) by removing the light-shielding layer (43) of the light-shielding material (40) provided on the base material (20) in a predetermined pattern; and a step of providing the skin material (50) so as to cover the front side of the light-shielding material (40) in which the through-hole (45) is formed, and winding and fixing the skin material (50) around the back side of the base material (20). A method for manufacturing a display panel characterized by the above.

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