Display device and input device

Abstract

A display device and an input device in which a skin has flexibility and blocks light between a plurality of light paths are provided. The display device includes a flexible member having light transmissivity; a plurality of first light sources provided on a first face side of the flexible member and outputting light to the flexible member; a skin provided on a second face side opposite to the first face of the flexible member and having a plurality of first transmission regions that respectively transmit light output from the plurality of first light sources and transmitted through the flexible member as light representing shapes of a plurality of first symbols in plan view; and a first light-blocking wall provided at least partially inside the flexible member and dividing the plurality of first light paths between the plurality of first light sources to the plurality of first transmission regions.

Description

Technical Field

[0001] This invention relates to display devices and input devices. Background Technology

[0002] Conventionally, there have been light-emitting display devices that include: a light guide member that converts light incident from a first surface into diffused light and emits it from a second surface opposite to the first surface; and a plurality of point light sources arranged at intervals on the second surface side of the light guide member, wherein the light guide member divides the first surface into a plurality of light-emitting regions corresponding to one or more of the point light sources directly below it, and the light-emitting display device has a light-shielding structure that reduces the transmission of light to adjacent light-emitting regions (for example, see Patent Document 1).

[0003] Prior art literature

[0004] Patent documents

[0005] Patent Document 1: JP 2019-168571 Summary of the Invention

[0006] The problem the invention aims to solve

[0007] However, in conventional light-emitting display devices, the light guide and light-shielding structures were not flexible components. Recently, however, the application of light-emitting display devices in various locations has led to discussions about structures that incorporate flexible elements such as walls. Furthermore, there is a growing demand for direct operational input to the light-emitting display device.

[0008] Therefore, the objective is to provide a display device and an input device with a flexible skin that provides light shielding between multiple light paths.

[0009] Solution for solving the problem

[0010] The display device according to an embodiment of the present invention includes: a flexible member having light transmittance; a plurality of first light sources disposed on a first surface side of the flexible member and outputting light to the flexible member; a skin disposed on a second surface side opposite to the first surface of the flexible member and having a plurality of first transmission regions that allow light output from the plurality of first light sources and transmitted through the flexible member to pass through as light representing the shape of a plurality of first symbols when viewed from above; and a first light-shielding wall, at least a portion of which is disposed inside the flexible member, dividing the plurality of first light paths from the plurality of first light sources to the plurality of first transmission regions.

[0011] Invention Effects

[0012] It can provide display devices and input devices with flexible skins that shield multiple light paths. Attached Figure Description

[0013] Figure 1 This is a diagram illustrating the input device 100 of the implementation method.

[0014] Figure 2 This is a diagram illustrating the display device 100A of the embodiment.

[0015] Figure 3 This is a diagram showing the input device 100 partially disassembled.

[0016] Figure 4 This is a diagram showing the input device 100 disassembled.

[0017] Figure 5 It means Figure 1 The diagram shows the AA-direction view section.

[0018] Figure 6 This is a diagram illustrating an example of the user's operation of the input device 100.

[0019] Figure 7 This is a diagram illustrating an example of the user's operation of the input device 100.

[0020] Figure 8 This is a diagram illustrating an example of the assembly process of the buffer 160, the light-shielding wall 170S, and the skin 180.

[0021] Figure 9 This is a diagram showing the cross-sectional structure of the input device 100M1 in the first modified embodiment.

[0022] Figure 10 This is a diagram showing the cross-sectional structure of the portion of the input device 100 including the light-shielding wall 170H.

[0023] Figure 11 This is a diagram showing the cross-sectional structure of the input device 100M2 in the second variation of the embodiment.

[0024] Figure 12 This is a diagram illustrating an example of the state of operation of the input device 100M2.

[0025] Figure 13 This is a diagram illustrating the installation method and planar structure of the input device 100M3 installed on the vehicle 50 in the third variation of the embodiment.

[0026] Figure 14 It means in Figure 13 The image shows the state of the fingertip FT pressing the skin downwards at a 180° angle on the BB-directed view.

[0027] Figure 15 This diagram illustrates the principle of position detection using a 140M electrostatic sensor. Detailed Implementation

[0028] The following describes embodiments of the display device and input device to which the present invention is applied. Hereinafter, the same reference numerals will sometimes be used for the same constituent elements, and their descriptions will be omitted. Furthermore, the thickness and length of each part will sometimes be exaggerated for ease of understanding of the structure.

[0029] <Implementation Method>

[0030] Figure 1 This is a diagram illustrating the input device 100 of the implementation method. Figure 2 This is a diagram illustrating the display device 100A of the embodiment. Hereinafter, the XYZ coordinate system will be defined for explanation. Furthermore, for ease of explanation, the -Z direction side will be referred to as the lower side or lower, and the +Z direction side will be referred to as the upper side or upper. Also, "top view" refers to viewing from the XY plane.

[0031] The input device 100 includes a substrate 110, multiple LEDs (Light Emitting Diodes) 120, a housing 130, an electrostatic sensor 140, a transparent plate 150, a buffer 160, a light-shielding wall 170, and a skin 180. As an example, the input device 100 can actually have a structure that is further elongated in both the X and Y directions. Figure 1 The image shows an example of the structure of a portion of the interval in the X and Y directions.

[0032] The display device 100A of the embodiment is as follows: Figure 2 As shown, the structure omits at least the electrostatic sensor 140 from the input device 100 and includes at least a substrate 110, an LED 120, a transparent plate 150, a buffer 160, a light-shielding wall 170S, and a skin 180. Therefore, in FIG. 1, the LED 120, transparent plate 150, buffer 160, light-shielding wall 170S, and skin 180 are marked with reference numeral 100A in brackets. Figure 2 The display device 100A shown has a range from Figure 1 The structure of housing 130 and electrostatic sensor 140 is omitted in the input device 100 shown, but the display device 100A may also include housing 130.

[0033] Below, except Figure 1 as well as Figure 2 In addition to using Figures 3 to 7 Let me explain the input device 100. Figure 3 This is a diagram showing the input device 100 partially disassembled. Figure 4The diagram shows the substrate 110, LED 120, housing 130, electrostatic sensor 140, transparent plate 150, buffer 160, light-shielding wall 170S, and skin 180 exploded. Figure 5 It means Figure 1 The diagram shows the AA-direction view section. Figure 6 as well as Figure 7 This diagram illustrates an example of the user's operation of the input device 100. Figure 6 as well as Figure 7 Lieutenant General Figure 5 A portion of the cross-section is shown in magnification.

[0034] In the input device 100, the buffer 160, the light-shielding wall 170, and the skin 180 are flexible. Flexibility refers to a degree of elasticity that allows for deformation; for example, it means that if the user moves from... Figure 6 As shown, the skin is touched by the fingertip at an angle of 180 degrees. Figure 7 When the skin 180 is pressed downwards as shown, the cushioning member 160, the light-shielding wall 170S, and the skin 180 deform. Furthermore, the input device 100 can include a high-rigidity light-shielding wall separately from the light-shielding wall 170S. Regarding the use of a high-rigidity light-shielding wall... Figure 10 To be discussed later.

[0035] The substrate 110 is, for example, a wiring substrate. Multiple LEDs 120 are mounted on the upper surface of the substrate 110. Furthermore, the upper surface of the substrate 110 is in contact with the lower surface of the housing 130. The substrate 110 and the housing 130 are fixed together by adhesive or screw fasteners. The substrate 110 is, for example, a wiring substrate conforming to the FR4 (Flame Retardant type 4) standard.

[0036] Multiple LEDs 120 are mounted on the upper surface of the substrate 110. These LEDs 120 are disposed on the lower surface of the buffer member 160. The lower surface of the buffer member 160 is an example of the first surface of a flexible member. The multiple LEDs 120 are connected to a control unit that controls the on / off state of each LED 120 via wiring (not shown) on the substrate 110. The control unit may be located outside or inside the input device 100. The multiple LEDs 120, while mounted on the upper surface of the substrate 110, are respectively housed inside multiple through holes 131 of the housing 130.

[0037] The input device 100 includes a plurality of LEDs 120. Figure 5The two LEDs 120A and 120B shown are respectively disposed inside the through holes 131A and 131B of the plurality of through holes 131 in the housing 130. LEDs 120A and 120B among the plurality of LEDs 120 included in the input device 100 are examples of a plurality of first light sources. Hereinafter, when referred to as LED 120, they will not be distinguished individually as they are for LEDs 120A and 120B.

[0038] The input device 100 has a structure that divides the optical paths of the multiple lights output by the multiple LEDs 120 respectively. Therefore, the optical paths 121A and 121B of the lights output by LEDs 120A and 120B respectively are divided and do not intersect. Optical path 121A connects LED 120A to the opening 184A of the mask 184 (described later). Optical path 121B connects LED 120B to the opening 184B of the mask 184 (described later).

[0039] The housing 130 is an example of a base and can be a shell. The housing 130 is fixed to the substrate 110. Therefore, the housing 130 is disposed between the substrate 110 and the electrostatic sensor 140. In other words, the housing 130 is disposed on the opposite side of the side of the transparent plate 150 on which the electrostatic sensor 140 is mounted. The housing 130 is, for example, made of resin and is opaque. That is, the housing 130 has light-shielding properties. The housing 130 has a plurality of through holes 131 extending in the Z direction. Figure 5 The diagram shows two through holes 131A and 131B among a plurality of through holes 131. The housing 130 has a wall portion 135A disposed between the through holes 131A and 131B. The two through holes 131A and 131B among the plurality of through holes 131 included in the input device 100 are examples of a plurality of first through holes. The wall portion 135A is an example of a first wall portion. LEDs 120A and 120B are respectively housed inside the through holes 131A and 131B. Hereinafter, when referred to as through hole 131, it will not be distinguished separately from through holes 131A and 131B. A substrate 110 is fixed to the lower surface of the housing 130, and a plurality of LEDs 120 are housed within the plurality of through holes 131.

[0040] The electrostatic sensor 140 is an example of a capacitance detection electrode. The electrostatic sensor 140 is disposed on the upper surface of the housing 130. In other words, the electrostatic sensor 140 is disposed on the opposite side of the retaining buffer 160 of the transparent plate 150. The electrostatic sensor 140 is transparent, therefore, as an example, it can be a sensor containing a transparent electrode such as ITO (Indium Tin Oxide). Here, as an example, the electrostatic sensor 140 is a self-capacitive touch panel containing a transparent electrode made of ITO. Such an electrostatic sensor 140, as an example, has approximately the same dimensions (length in the X and Y directions) as the transparent plate 150 and the buffer 160 when viewed from above.

[0041] The electrostatic sensor 140 and the housing 130 are, for example, fixed by screws or other fasteners. The electrostatic sensor 140 detects the approach of a living organism in a region higher than the electrostatic sensor 140. More specifically, the electrostatic sensor 140 detects an action toward the epidermis 180. Approach refers to the living organism touching the epidermis 180, or approaching to a certain extent without touching the epidermis 180. The electrostatic sensor 140 can detect the position where the living organism approaches the epidermis 180. Here, as an example, the living organism is a human fingertip (FT) (see [reference]). Figure 6 , Figure 7 (in the way of)

[0042] The transparent plate 150 is an example of a transparent plate-shaped member. The transparent plate 150 can be made of a light-transmitting component, for example, transparent resin. The transparent plate 150 is disposed above the electrostatic sensor 140. A fixed gap is provided between the transparent plate 150 and the electrostatic sensor 140 in the Z direction. This gap will be described later. The dimensions of the transparent plate 150 in the X and Y directions are approximately equal to those of the substrate 110, the housing 130, and the electrostatic sensor 140. Furthermore, the thickness of the transparent plate 150 in the Z direction is fixed. The transparent plate 150 can be colorless transparent or colored transparent, but here we will describe a colorless transparent type. The transparent plate 150 has a groove 151 formed from the upper surface side. A portion of the lower end of the light-shielding wall 170S is received in the groove 151 and bonded and fixed with adhesive 171. The lower end of the light-shielding wall 170S is an example of the end of the first light-shielding wall on the first light source side. The groove 151 that houses a portion of the lower end of the light-shielding wall 170S is an example of the first groove. The adhesive 171 is, for example, a light-shielding adhesive. Alternatively, a substance other than the adhesive can be used to fix the lower end of the light-shielding wall 170S to the transparent plate 150 within the groove 151. Furthermore, the adhesive 171 may also be light-shielding.

[0043] The position of the slot 151 in the XY plane matches the position of the light-shielding wall 170S. This is because the lower end of the light-shielding wall 170S enters the slot 151. Furthermore, the position of the slot 151 in the XY plane matches the position of the wall portion 135A of the housing 130. This is because the optical paths 121A and 121B are divided by the light-shielding wall 170S and the wall portion 135A.

[0044] The width of the slot 151 in the X direction is wider than the width (thickness) of the light-shielding wall 170S in the Y direction, and the length of the slot 151 in the Y direction is approximately equal to the length of the light-shielding wall 170S in the Y direction. Here, a light-shielding wall 170S extending in the Y direction on the XY plane is shown, but the light-shielding wall 170S can extend in various directions on the XY plane. Therefore, the width and length of the slot 151 in the XY plane can be determined by corresponding to the width and length of the light-shielding wall 170S in the XY plane.

[0045] Furthermore, the depth of groove 151 is the length in the Z direction from the upper surface of transparent plate 150 to the bottom surface of groove 151. The depth of groove 151B is such that the bottom surface of groove 151 is located below the lower end of light-shielding wall 170S and the lower end of light-shielding wall 170S can be bonded with adhesive dripped onto the bottom surface of groove 151.

[0046] A cushioning member 160 is fixed to the upper surface of the transparent plate 150. As an example, the upper surface of the transparent plate 150 and the lower surface of the cushioning member 160 are bonded together. The transparent plate 150 holds the cushioning member 160 and functions as a reinforcing plate to strengthen the cushioning member 160. In other words, the transparent plate 150 functions as a foundation supporting the cushioning member 160. Furthermore, the thickness of the transparent plate 150 in the Z direction is, for example, between 1 mm and 3 mm.

[0047] The buffer 160 is an example of a flexible member with light transmittance. That is, the buffer 160 is both light transmittance and flexible. Because the buffer 160 is light transmittance, it functions as a light guide to direct the light emitted by the LED 120 to the skin 180. Furthermore, because the buffer 160 is flexible, if... Figure 7 It can be deformed by pressing downwards as shown. The lower surface of the buffer 160 is an example of the first surface, and the upper surface is an example of the second surface.

[0048] As an example, a light-transmitting nonwoven fabric can be used as the cushioning element 160. The thickness of the cushioning element 160 in the Z direction is fixed. When using a nonwoven fabric as the cushioning element 160, it is preferable to use a nonwoven fabric with the fibers oriented in the longitudinal direction (Z direction). The longitudinally oriented nonwoven fabric provides a large reaction force when pressed in the longitudinal direction. This is because, since the cushioning element 160 is pressed downward in the longitudinal direction, using the longitudinally oriented nonwoven fabric as the cushioning element 160 can provide a reaction force to the fingertips (FT), providing a good tactile feel. In addition, the nonwoven fabric with the fibers oriented in the longitudinal direction is suitable for guiding light in the longitudinal direction.

[0049] A slit 161 is formed in the buffer member 160, and a light-shielding wall 170S is disposed inside the slit 161. The slit 161 that houses the light-shielding wall 170S is an example of the first slit. The slit 161 is formed parallel to the YZ plane and extends through the buffer member 160 in the Z direction. Furthermore, the width in the X direction and the length in the Y direction of the slit 161 are approximately the same as the thickness in the X direction and the length in the Y direction of the light-shielding wall 170S, respectively. The slit 161 is formed to match the dimensions of the light-shielding wall 170S in the X and Y directions so that no gap is generated between the slit 161 and the light-shielding wall 170S when the light-shielding wall 170S is housed. In addition, the thickness in the Z direction of the buffer member 160 is, for example, about 3 mm to 7 mm. Furthermore, since in Figures 1 to 4 The diagram shows a portion of the input device 100 and display device 100A in the X and Y directions. Therefore, a portion of the buffer 160 in the X and Y directions is also shown, particularly in the Y direction, showing only the portion where the slit 161 exists. Therefore, in Figures 1 to 4 In the diagram, the buffer 160 is shown to be divided into two parts in the X direction by a slit 161. However, since the overall length of the buffer 160 in the Y direction is greater than that of the buffer 160, the buffer 160 is divided into two parts in the X direction. Figures 1 to 4 The length of the portion shown is longer than the length of the slit 161 in the Y direction. Therefore, at least one of the +Y direction side and the -Y direction side of the slit 161, at the end of the slit 161, the buffers 160 located on both sides of the slit 161 in the X direction are joined together.

[0050] Light-shielding wall 170S is an example of the first light-shielding wall, and is a fabric with both light-shielding and softness. The fabric is not limited to woven fabric, but also includes non-woven fabric. The light-shielding property of light-shielding wall 170S is, for example, sufficient to prevent light from passing through from one side to the other; more specifically, for example, sufficient to prevent human visual confirmation of light transmission from one side to the other. Light-shielding wall 170S is, for example, black. Furthermore, if the adhesive 171, to which the lower end of light-shielding wall 170S is bonded within groove 151, also has equivalent light-shielding properties, higher light-shielding properties can be obtained, enabling more reliable separation between light paths 121A and 121B.

[0051] The light-shielding wall 170S, together with the wall portion 135A of the housing 130, optically divides the light paths 121A and 121B. Therefore, the position of the light-shielding wall 170S in the XY plane matches the position of the wall portion 135A that divides the LEDs in the XY plane view. More specifically, since the light propagating inside the light paths 121A and 121B travels from bottom to top, the position of the light-shielding wall 170S is further downstream than the wall portion 135A in the light propagation direction. In order to efficiently guide the upward-propagating light within the through holes 131A and 131B on both sides of the wall portion 135A to the openings 184A and 184B of the mask 184, the light-shielding wall 170S and the adhesive 171 must be located inside the through holes 131A and 131B in the top view. Therefore, the light-shielding wall 170S and the adhesive 171 are disposed in the area where the wall portion 135A is located when viewed from above. Furthermore, the position of the adhesive 171 when viewed from above is determined by the position of the groove 151 of the transparent plate 150, so the groove 151 can be disposed in the area where the wall portion 135A is located when viewed from above.

[0052] Furthermore, since the light-shielding wall 170S optically divides the light paths 121A and 121B leading to the openings 184A and 184B of the mask 184, it is positioned at a point that partially overlaps with the openings 184A and 184B of the mask 184 when viewed from above. Since the position of the adhesive 171 when viewed from above is determined by the position of the groove 151 in the transparent plate 150, the groove 151 can be positioned within the area between the openings 184A and 184B when viewed from above.

[0053] Furthermore, the light-shielding wall 170S extends in the Z direction from the bottom of the groove 151 of the transparent plate 150 to the upper end of the slit 161 of the buffer member 160. The lower end of the light-shielding wall 170S is in contact with the bottom surface of the groove 151, or it may not be in contact with it. The upper end of the light-shielding wall 170S is substantially flush with the upper surface of the buffer member 160. At least a portion of the light-shielding wall 170S (here, the portion inside the slit 161) is disposed inside the buffer member 160, extending from the upper end to the lower end of the buffer member 160 in the Z direction. In other words, at least a portion of the light-shielding wall 170S is disposed inside the slit 161.

[0054] Furthermore, the flexibility of the light-shielding wall 170S is the same as, or greater than, that of the cushioning member 160. The fact that the light-shielding wall 170S is more flexible than the cushioning member 160 means that the light-shielding wall 170S is more flexible than the cushioning member 160. The light-shielding wall 170S possesses this flexibility in order to withstand conditions such as… Figure 6As shown, when the user touches the skin 180 with their fingertip FT, the presence of the light-shielding wall 170S will not be noticed. Furthermore, this is to ensure that... Figure 7 When the user presses the skin 180 downwards as shown, causing the light-shielding wall 170S to deform together with the cushioning member 160, there will be no sense of disharmony as if there were hard objects inside the cushioning member 160.

[0055] The 170S light-blocking wall can be as Figure 7 As shown, it deforms together with the buffer 160. The light-shielding wall 170S deforms in a bending manner. This deformation of the light-shielding wall 170S has been experimentally confirmed. Furthermore, since the light-shielding wall 170S does not shift position due to friction with the inner wall of the slit 161, if the user removes their fingertip FT from the skin 180, the buffer 160, the light-shielding wall 170S, and the skin 180 will remain as shown. Figure 6 It will be restored to its original state as shown.

[0056] Furthermore, the light-shielding wall 170S is merely sandwiched within the slit 161 of the buffer member 160 and is not bonded. The light-shielding wall 170S is bonded at the bottom of the groove 151 of the transparent plate 150, which is lower than the buffer member 160, using adhesive 171. Since the hardness of the adhesive 171 in its cured state is higher than that of the light-shielding wall 170S and the buffer member 160, if adhesive 171 were present near the surface of the buffer member 160, the user might experience a feeling of discomfort, as if there were something hard within the buffer member 160, when touching it. Therefore, as an example, the light-shielding wall 170S based on adhesive 171 is fixed at the bottom of the groove 151 of the transparent plate 150, which is lower than the buffer member 160, and the light-shielding wall 170S is not bonded to the inner wall of the slit 161 of the buffer member 160. The light-shielding wall 170S is maintained by the inner wall of the slit 161 to a degree that it will not deviate from its position due to friction with the inner wall of the slit 161 even if it undergoes repeated deformation.

[0057] Here, the width (thickness) of the light-shielding wall 170S in the X direction, its length in the Y direction, and its length in the Z direction will be explained. The width (thickness) of the light-shielding wall 170S in the X direction is the thickness of the fabric used as the light-shielding wall 170S. Furthermore, the length of the light-shielding wall 170S in the Y direction is determined by the Y-direction dimensions of the openings 184A and 184B of the mask 184, and their positional relationship with the openings (not shown) adjacent to opening 184A in the Y direction. In addition to openings 184A and 184B, the mask 184 also has openings, and the multiple openings of the mask 184, including openings 184A and 184B, are distributed at various positions in the XY plane. Therefore, the light-shielding wall 170S will have lengths in various directions in the XY plane.

[0058] In addition, the length of the light-shielding wall 170S in the Z direction can be determined as follows. Figure 5 The light-shielding wall 170S shown optically divides the optical paths 121A and 121B of LEDs 120A and 120B on the XZ plane. Here, if the light-shielding wall 170S is positioned at arrow A, which connects the -X direction end of LED 120A, the upper end of wall portion 135A, and the +X direction end of opening portion 184B of mask 184, and if the light-shielding wall 170S is positioned at arrow B, which connects the +X direction end of LED 120B, the upper end of wall portion 135A, and the +X direction end of opening portion 184A of mask 184, then the light-shielding wall 170S can optically divide the optical paths 121A and 121B.

[0059] Arrows A and B represent the lowest points of the light paths that, without the light shielding wall 135A, the light output from LEDs 120A and 120B can enter the openings 184B and 184A, respectively, passing through the electrostatic sensor 140, the transparent plate 150, or the buffer 160, in the absence of the light shielding wall 170S. Therefore, the Z-direction length of the light shielding wall 170S only needs to be set such that the light shielding wall 170S can block such light paths. Furthermore, the Z-direction length of the light shielding wall 170S should have a margin to account for manufacturing errors, etc. In addition, since the adhesive 171 that fixes the lower end of the light shielding wall 170S to the bottom surface of the groove 151 has the same light shielding properties as the light shielding wall 170S, as long as the positions of the light shielding wall 170S and the adhesive 171 are in the light paths indicated by arrows A and B, the optical division of light paths 121A and 121B can be performed more effectively. In addition, in order to suppress light reflection within the through holes 131A and 131B, the housing 130 is preferably a structure that easily absorbs light, such as a structure made of black resin, or a structure in which the inner surfaces of the through holes 131A and 131B are coated with black.

[0060] Furthermore, it will be explained here that the light-shielding wall 170S, which serves as the first light-shielding wall, is made of a fabric that is both light-shielding and soft. The light-shielding wall 170S is soft so that the user will not notice its presence when touching the skin 180 with their fingertips FT. However, it can also be configured such that the presence of the light-shielding wall as the first light-shielding wall is noticeable when the user touches the skin 180 with their fingertips FT. In such a case, if used... Figure 10 As with the light-shielding wall 170H described later, a light-shielding wall having a higher hardness than the flexible light-shielding wall 170S can be used as the first light-shielding wall. Furthermore, the first light-shielding wall can be configured to include both a portion made of the flexible light-shielding wall 170S and a portion made of the highly rigid light-shielding wall.

[0061] The skin 180 has a base 181, a raised / recessed portion 182, a decorative printing portion 183, and a mask 184. Figures 1 to 4 The epidermis 180 is simplified and shown in the figure. Figures 5 to 7 The diagram shows a base 181, a raised / recessed portion 182, a decorative printing portion 183, and a mask 184. The skin 180 is a component located on the outer surface of the input device 100, positioned higher than the housing 130. The skin 180 is as follows... Figures 1 to 3 As shown, the buffer 160, which is provided with a light-shielding wall 170S, covers the upper surface and side surfaces of the buffer member 160 and the side surfaces of the transparent plate 150, and extends to the lower surface of the transparent plate 150. The skin 180 is as follows... Figures 1 to 3 As shown, with the transparent plate 150, buffer 160, and light-shielding wall 170S covered, the skin 180 is bonded to the sides and ends of the lower surface of the transparent plate 150. In this way, since the skin 180 is installed relative to the transparent plate 150, buffer 160, and light-shielding wall 170S, the skin 180 is not bonded to the buffer 160.

[0062] The portion of the skin 180 located above the buffer 160 is operated by the user of the input device 100. Furthermore, the +X and -X direction ends of the upper end of the buffer 160 are curved into an arc shape when viewed in the XZ section because they are covered by the skin 180. Thus, with the transparent plate 150, buffer 160, and light-shielding wall 170S covered by the skin 180, the transparent plate 150, buffer 160, light-shielding wall 170S, and skin 180 are fixed to the upper side of the electrostatic sensor 140. At this time, because the end of the skin 180 is sandwiched between the electrostatic sensor 140 and the transparent plate 150, a gap in the Z direction is generated between the electrostatic sensor 140 and the transparent plate 150. Alternatively, it can be configured so that no such gap is generated.

[0063] The base 181 is a transparent, sheet-like component that forms the base of the outer skin 180 and is flexible. A raised portion 182 is provided on the outer surface of the base 181. The raised portion 182 can be a part of the outer surface of the base 181 or a transparent, sheet-like component adhered to the outer surface of the base 181. The raised portion 182 has a recess 182A. In the raised portion 182, since the portion without the recess 182A protrudes relative to the recess 182A, it has a raised or recessed surface. Such a raised portion 182 is provided as an example to produce a leather-like appearance and feel on the outer skin 180.

[0064] The decorative printing section 183 is a printing layer used to print colors, patterns, etc., onto the transparent base 181 and the raised / recessed sections 182. For example, it is provided to produce leather-like colors, patterns, etc., on the surface 180. The decorative printing section 183 is translucent.

[0065] The mask 184 has multiple openings. Figure 5 The openings 184A and 184B shown are two of the multiple openings of the mask 184. The openings 184A and 184B are an example of the first transmission area.

[0066] The mask 184 imparts the shape of various symbols to light passing through multiple openings, including openings 184A and 184B. Light output from LEDs 120A and 120B and propagating in light paths 121A and 121B passes through openings 184A and 184B, becoming light characterizing the shape of the symbols, and then passes through the base 181, the raised / recessed portion 182, and the decorative printing portion 183. Therefore, various symbols are displayed on the surface of the skin 180 by light characterizing the shape of the symbols. In other words, various symbols are illuminated on the surface of the skin 180 by light characterizing the shape of the symbols. Figures 1 to 3 In the diagram, symbols 185A and 185B are shown as examples of multiple symbols illuminated on the surface of epidermis 180. Hereinafter, without specifically distinguishing between symbols 185A and 185B, they will simply be referred to as symbol 185.

[0067] Here, the term "symbol" refers to characters, numbers, symbols, lines, markings, etc., that have a given meaning, and represents the functions and types of the various operating parts of the input device 100. Openings 184A and 184B are portions of mask 184 obtained by removing parts according to the shapes of symbols 185A and 185B. Therefore, mask 184 is a photomask that forms a positive image. Furthermore, mask 184 is not limited to a photomask that forms a positive image; it can also be a photomask that forms a negative image.

[0068] In the input device 100 described above, if LEDs 120A and 120B are set to ON, then as follows: Figure 1As shown, symbols 185A and 185B are illuminated on the surface of epidermis 180. As an example, Figure 6 This indicates the state of the portion of the surface of the skin 180 that displays the symbol 185A, which is the area contacted by the user who selected symbol 185A. Figure 7 The image shows the user pressing the part displaying symbol 185A. At this time, the electrostatic sensor 140 detects the operation performed on the position of the symbol 185A as viewed from above by measuring changes in electrostatic capacitance. This allows the user to accept the operation on symbol 185A.

[0069] Figure 8 This diagram illustrates an example of the assembly process of the buffer 160, the light-shielding wall 170S, and the skin 180. Figure 8 The diagram shows steps 1 through 4 from top to bottom. In step 1, a buffer 160 is placed on the worktable 10, and the cutter 11A of the die 11 is inserted into the buffer 160 to form a slit 161. The cutter 11A of the die 11 is configured to achieve the width of the slit 161. Alternatively, the length of the slit 161 in the Y direction can be adjusted by moving the die 11 in the Y direction.

[0070] In step 2, the buffer 160 with the slit 161 formed is bonded to the transparent plate 150. At this time, adhesive 171 is dripped onto the bottom surface of the groove 151 of the transparent plate 150. With the lower end of the light-shielding wall 170S hanging on the lower end of the rod 21 of the clamp 20, it is inserted into the slit 161 from the upper side, and the light-shielding wall 170S is pressed into the slit 161 until the lower end of the light-shielding wall 170S reaches the bottom surface of the groove 151.

[0071] If the lower end of the light-shielding wall 170S is fixed to the bottom of the groove 151 by the adhesive 171, the clamp 20 is pulled out. Thus, as in step 3, the light-shielding wall 170S is installed inside the slit 161.

[0072] Finally, in step 4, the skin 180 is applied over the transparent plate 150, the cushioning member 160, and the light-shielding wall 170S, and the ends of the skin 180 are bonded to the ends of the side and lower surfaces of the transparent plate 150 using adhesive 155. At this time, the end of the upper part of the cushioning member 160 in the -X direction is bent into an arc shape when viewed in the XZ section because it is covered by the skin 180. Through the above steps 1 to 4, the cushioning member 160, the light-shielding wall 170S, and the skin 180 can be assembled.

[0073] Here, the light-shielding wall 170S is fixed to the bottom of the groove 151 only at its lower end by adhesive 171. Because the inner wall of the slit 161 and the light-shielding wall 170S are in close contact, therefore... Figure 7As shown, even if the skin 180 is pressed downwards and the cushioning member 160 and the light-shielding wall 170S are deformed, there will be no positional deviation of the cushioning member 160 and the light-shielding wall 170S.

[0074] However, the inner wall of the slit 161 and the light-shielding wall 170S can also be bonded as follows. For example, in step 2, when the light-shielding wall 170S is inserted into the slit 161 using the clamp 20, a small amount of adhesive is applied to the surface of the light-shielding wall 170S (the surface parallel to the YZ plane), and the adhesive is applied to the inner wall of the slit 161 at the same time as the light-shielding wall 170S is inserted into the slit 161. At this time, if the adhesive is not adhered to the uppermost part of the slit 161, the adhesive can be applied to the part of the surface of the light-shielding wall 170S other than the upper end, and the part of the surface of the light-shielding wall 170S other than the upper end can be bonded to the inner wall of the slit 161. Furthermore, since no adhesive is attached to the upper part of the surface of the light-shielding wall 170S, there is no portion that is fixed to the surface side of the buffer member 160 with adhesive. Even if the user comes into contact with the portion of the buffer member 160 where the light-shielding wall 170S is located, the user will not experience any sense of disharmony. Thus, if the light-shielding wall 170S and the inner wall of the slit 161 are bonded together, the positional deviation between the buffer member 160 and the light-shielding wall 170S can be more effectively suppressed.

[0075] Furthermore, as described above, instead of applying adhesive to the surface of the light-shielding wall 170S, in step 2, when the light-shielding wall 170S is inserted into the slit 161 using the clamp 20, the clamp 20 is pressed down until the light-shielding wall 170S reaches the bottom of the groove 151, thereby applying adhesive 171 to the surface of the light-shielding wall 170S. At this time, the adhesive 171 is not adhered to the upper surface of the light-shielding wall 170S. Then, by lifting the clamp 20 and pulling the light-shielding wall 170S back to the upper end of the slit 161, the portion of the surface of the light-shielding wall 170S, excluding the upper end, can be bonded to the inner wall of the slit 161.

[0076] Figure 9 This is a cross-sectional view showing the input device 100M1 of the first modified embodiment. The input device 100M1 will... Figures 1 to 7 The light-shielding wall 170S of the input device 100 shown is replaced with light-shielding walls 170SA and 170SB. Light-shielding walls 170SA and 170SB constitute a double wall. Light-shielding wall 170SA is an example of the first light-shielding wall, and light-shielding wall 170SB is an example of the third light-shielding wall.

[0077] The transparent plate 150 of the input device 100M1 has two slots 151A and 151B between the optical paths 121A and 121B. Slot 151A is an example of the first slot, and slot 151B is an example of the third slot. Slots 151A and 151B are both located in the area where the wall portion 135A is situated, and also in the area where the portion between the openings 184A and 184B is situated. This is to ensure the optical paths 121A and 121B are secure.

[0078] Furthermore, the buffer 160 of the input device 100M1 has two slits 161A and 161B between the optical paths 121A and 121B. The top-view positions of the slits 161A and 161B match the slots 151A and 151B, respectively. Slit 161A is an example of the first slit, and slit 161B is an example of the third slit.

[0079] Light-shielding walls 170SA and 170SB are respectively inserted into the interiors of slits 161A and 161B, with their lower ends inserted into the interiors of slots 151A and 151B and secured by adhesive 171. Therefore, at least a portion of light-shielding wall 170SA (here, the portion inside slit 161A) is disposed inside the buffer member 160. In other words, at least a portion of light-shielding wall 170SA is disposed inside slit 161A. Furthermore, at least a portion of light-shielding wall 170SB (here, the portion inside slit 161B) is disposed inside the buffer member 160. In other words, at least a portion of light-shielding wall 170SB is disposed inside slit 161B. Moreover, light-shielding walls 170SA and 170SB, viewed from above, are located in the area where the wall portion 135A is situated between the through holes 131A and 131B of the housing 130.

[0080] For example, if sufficient light-blocking is not achieved using only one light-blocking wall 170S, a double wall constructed from light-blocking walls 170SA and 170SB can be provided. By using light-blocking walls 170SA and 170SB that form such a double wall, optical separation between optical paths 121A and 121B can be achieved more effectively.

[0081] Furthermore, since if the two light-shielding walls 170SA and 170SB are positioned too close together for contact, an unpleasant sensation of hardness may occur when the user's fingertips FT touch the portion of the buffer 160 above the two light-shielding walls 170SA and 170SB, it is preferable to provide a certain degree of spacing between the two light-shielding walls 170SA and 170SB. This is to reduce the overall density of the light-shielding walls 170SA and 170SB and the buffer 160, maintaining the softness of the buffer 160. In addition, to ensure the strength of the buffer 160 between the two slits 161A and 161B, the spacing between the two light-shielding walls 170SA and 170SB is, for example, at least 3 mm. The spacing between the light-shielding walls 170SA and 170SB can be set, for example, corresponding to the luminous intensity of the LEDs 120A and 120B. Furthermore, in order to establish a certain degree of spacing between the two light-shielding walls 170SA and 170SB, the two light-shielding walls 170SA and 170SB are preferably disposed inside mutually different slits 161A and 161B. Alternatively, depending on the spacing of the light-shielding walls 170SA and 170SB, slots 151A and 151B may not be formed, but rather a large slot may be formed to accommodate both, in which the light-shielding walls 170SA and 170SB are housed.

[0082] Furthermore, while a double-layered light-shielding wall is mentioned here, a triple or higher layer can also be used. That is, there can be two or more light-shielding walls. In this case, the number of light-shielding walls can be set according to the luminous intensity of 120A and 120B, etc.

[0083] Next, use Figure 10 Let's take light-shielding wall 170H as an example of the second light-shielding wall. Figure 10 This is a diagram showing the cross-sectional structure of the portion of the input device 100 that includes the light-shielding wall 170H.

[0084] The input device 100 includes a light-shielding wall 170H. Furthermore, in Figure 10 The diagram shows LEDs 120C and 120D among a plurality of LEDs 120, through holes 131C and 131D among a plurality of through holes 131 in the housing 130, wall portion 135B in the housing 130, through hole 152 in the transparent plate 150, slit 162 in the buffer member 160, and openings 184C and 184D among a plurality of openings in the mask 184.

[0085] LEDs 120C and 120D, among the plurality of LEDs 120 included in the input device 100, are examples of a plurality of second light sources. Hereinafter referred to as LED 120, they are not as numerous as LEDs 120C, 120D, and... Figure 5The cases shown are distinguished individually, such as LED120A and 120B.

[0086] Through holes 131C and 131D among the plurality of through holes 131 are examples of plurality of second through holes. The wall portion 135B of the housing 130, located between through holes 131C and 131D, is an example of a second wall portion. The through hole 152 of the transparent plate 150 is an example of a through hole provided in a transparent plate-shaped member. The slit 162 of the buffer member 160 is an example of a second slit. The openings 184C and 184D among the plurality of openings of the mask 184 are examples of plurality of second transmission regions.

[0087] The light emitted by LEDs 120C and 120D travels through through-holes 131C and 131D, the transparent plate 150, and the interior of the buffer 160 to reach the openings 184C and 184D of the mask 184. The light paths 121C and 121D are optically divided by the wall portion 135B and the light-shielding wall 170H. The light paths 121C and 121D are an example of a second light path.

[0088] Light-shielding wall 170H possesses light-shielding properties and a certain degree of rigidity, dividing the optical paths 121C and 121D. The light-shielding properties of light-shielding wall 170H need to be equivalent to those of light-shielding wall 170S, as long as it can optically divide the optical paths 121C and 121D. Light-shielding wall 170H is, for example, black. As long as light-shielding wall 170H possesses a certain degree of rigidity, it can be made of any material; here, resin is used as an example.

[0089] The hardness ratio of the 170H light-shielding wall is... Figure 5 The light-shielding wall 170S shown has a higher hardness. In other words, the light-shielding wall 170H is harder than the light-shielding wall 170S. The hardness of the light-shielding wall 170H only needs to be a hardness that characterizes the degree to which it does not deform even when the top is traced with a fingertip (FT).

[0090] The light-shielding wall 170H is disposed within the through hole 152 of the transparent plate 150 and the slit 162 of the buffer member 160, extending between the electrostatic sensor 140 and the skin 180. That is, at least a portion of the light-shielding wall 170H (here, the portion inside the slit 162) is disposed inside the buffer member 160. In other words, at least a portion of the light-shielding wall 170H is disposed inside the slit 162.

[0091] Light propagating inside optical paths 121C and 121D travels from bottom to top. Therefore, in the direction of light propagation, the position of the light-shielding wall 170H is further downstream than that of the wall portion 135B. To efficiently guide the upward-propagating light within the through-holes 131C and 131D on both sides of the wall portion 135B to the openings 184C and 184D of the mask 184, the light-shielding wall 170H only needs to be located inside the through-holes 131C and 131D when viewed from above. Therefore, the light-shielding wall 170H is positioned within the area where the wall portion 135B is located when viewed from above. Furthermore, since the light-shielding wall 170H optically divides the optical paths 121C and 121D leading to the openings 184C and 184D of the mask 184, it is positioned when viewed from above at a position that partially overlaps with the openings 184C and 184D of the mask 184.

[0092] The top-view dimensions (width in the X direction and length in the Y direction) of the through-hole 152 and the slit 162 match the top-view dimensions (width in the X direction and length in the Y direction) of the light-shielding wall 170H, which is configured to be housed without gaps. Furthermore, the Z-direction length of the light-shielding wall 170H, for example, only needs to be equal to the distance from the lower surface of the transparent plate 150 to the upper surface of the buffer 160. The Z-direction length (height) of the light-shielding wall 170H is fixed in the Y direction. The upper end of the light-shielding wall 170H is flush with the upper surface of the buffer 160 when inserted through the slit 162. In other words, the upper end of the light-shielding wall 170H is exposed on the upper surface of the buffer 160 when inserted through the slit 162. This is for optically dividing the optical paths 121C and 121D within the interval from the upper surface of the electrostatic sensor 140 to the lower surface of the mask 184.

[0093] Such a light-shielding wall 170H is integrally formed with the transparent plate 150 via two-color molding, as an example. That is, as an example, as long as the through hole 152 is formed when the transparent plate 150 is formed, the light-shielding wall 170H extending into the interior of the through hole 152 and protruding from the upper surface of the transparent plate 150 can be formed by two-color molding. Alternatively, after forming the light-shielding wall 170H, the transparent plate 150 with the through hole 152 formed around the light-shielding wall 170H can be formed by two-color molding, creating a structure in which the light-shielding wall 170H is integrally disposed inside the through hole 152. The Z-direction length of the portion of the light-shielding wall 170H protruding from the upper surface of the transparent plate 150 is consistent with the Z-direction thickness of the buffer member 160. The upper end of the light-shielding wall 170H is flush with the upper surface of the buffer member 160 when inserted through the slit 162.

[0094] Such a light-shielding wall 170H is not visible from the surface of the skin 180, but as an example, it is designed to create a tactile sensation of contact with a hard protrusion when the user traces the surface of the skin 180 with their fingertips. For example, if such... Figure 10 The light-shielding wall 170H extending in the Y direction, as shown, can be used as a guide to guide the user's fingertips along the Y direction. Furthermore, for example, if with... Figure 5 When the light-shielding wall 170S shown is used in combination, it can also be used as an area for tactile perception of the presence of the light-shielding wall 170S, which is an area displaying various symbols 185, and the light-shielding wall 170H is a guide at the outer end of the area.

[0095] In addition, Figure 10 The text describes how the light-shielding wall 170H is integrally formed with the transparent plate 150 using a two-color molding process. However, the light-shielding wall 170H may also be separate from the transparent plate 150. For example, the transparent plate 150 with the through hole 152 and the light-shielding wall 170H can be fabricated separately, and the light-shielding wall 170H can be inserted into the through hole 152 and fixed with an adhesive or similar agent. In this case, the adhesive can be... Figure 5 The adhesive 171 shown also has light-shielding properties. Furthermore, the lower end of the light-shielding wall 170H can be inserted into the through hole 152 instead of the through hole 152. Figure 5 The groove 151 is the same groove and is bonded. This groove, used instead of the through hole 152, is an example of the second groove. The lower end of the light-shielding wall 170H is an example of the end of the second light-shielding wall (light-shielding wall 170H) on the first light source (LED120A) side. Figure 10 LED120A is not shown, but since LED120A is on the same surface as LED120C and 120D (the upper surface of substrate 110), the lower end of the light-shielding wall 170H is the end of the light-shielding wall 170H on the LED120A side.

[0096] In addition, the light-shielding wall 170H can be set to the same Figure 5 The light-shielding walls 170S shown divide multiple first optical paths together. In this case, the user can experience the tactile sensation of contact with hard protrusions at the positions of the light-shielding walls 170H around the first optical path.

[0097] Figure 11 This is a cross-sectional view showing the input device 100M2 of the second modified embodiment. The input device 100M2 will... Figure 10 The light-shielding wall 170H of the input device 100 shown is replaced with a light-shielding wall 170MH. Light-shielding wall 170MH is an example of the second light-shielding wall. This description is related to... Figure 10 The differences between the input devices 100 shown.

[0098] The input device 100M2, through the inclusion of a light-shielding wall 170MH, thereby having the ability to separately input... Figure 10 The housing 130, electrostatic sensor 140 and buffer 160 shown are replaced with a structure consisting of housing 130M, electrostatic sensor 140M and buffer 160M.

[0099] The light-shielding wall 170MH is formed by extending the upper end of the wall portion 135B between the through holes 131C and 131D of the housing 130M upwards. Therefore, the light-shielding wall 170MH is a part of the housing 130M and is integrally formed. The housing 130M, including the light-shielding wall 170MH, and... Figure 5 The housing 130 shown also has light-shielding properties.

[0100] The electrostatic sensor 140M has a through-hole 141M at a position corresponding to the light-shielding wall 170MH. The structure of the electrostatic sensor 140M with this through-hole 141M is similar to that of the electrostatic sensor 140 implemented as an example using a touch panel (see reference). Figure 5 Unlike other devices, the input device 100M2 uses a transparent electrode that is set one by one for each of the one or more symbols. The input device 100M2 uses an electrostatic sensor 140M to detect the fingertip approaching the epidermis 180. The electrostatic sensor 140M has a structure in which an ITO film formed on the surface of a glass plate, a transparent resin sheet, etc., is divided into sections corresponding to the positions where one or more symbols are displayed.

[0101] The buffer 160M has a slit 162M. The buffer 160M is an example of a flexible member, and the slit 162M is an example of a second slit. In the input device 100M2, the upper end of the light-shielding wall 170MH is offset further downward than the upper surface of the buffer 160M. In other words, the upper end of the light-shielding wall 170MH is offset further downward than the upper surface of the buffer 160M. Therefore, a gap is provided between the upper end of the light-shielding wall 170MH and the skin 180. The upper end of the light-shielding wall 170MH is an example of the end of the second side of the light-shielding wall 170MH.

[0102] If the light-shielding wall 170MH is inserted into the slit 162M from the bottom, then the portion of the slit 162M above the upper end of the light-shielding wall 170MH will not contain the light-shielding wall 170MH. Preferably, when the user touches the upper part of the slit 162M with their fingertip FT on the epidermis 180, they will not perceive a difference in tactile sensation compared to the portion outside the slit 162M. Therefore, the portion of the slit 162M above the upper end of the light-shielding wall 170MH can be considered as an example of a state equal to the closure of the slit 162M.

[0103] To achieve this state, for example, the width of the slit in the X direction of 162M is greater than... Figure 5The slit 161 shown can be narrow. Furthermore, the cross-sectional shape of the light-shielding wall 170MH in the XZ plane can be as follows: Figure 11 As shown, the width narrows from the lower end to the upper end, forming a wedge shape. Since the light-shielding wall 170MH extends in the Y direction as an example, the extension direction of the light-shielding wall 170MH is the Y direction. The section of the light-shielding wall 170MH parallel to the XZ plane is a section perpendicular to the Y direction, which is the extension direction.

[0104] That is, the light-shielding wall 170MH has a wedge-shaped cross-section (XZ section) perpendicular to the extension direction (Y direction), where the width in the X direction narrows from the lower end to the upper end. A wedge shape is defined as a shape where the width (thickness) gradually decreases from one end to the other. One end is the lower surface (first surface) of the buffer member 160M, and the other end is the upper surface (second surface) of the buffer member 160M. In the case of the light-shielding wall 170MH, since the fingertip FT contacts the upper end via the skin 180, the wedge shape of the XZ section of the light-shielding wall 170MH1 has a shape such that the apex of an isosceles triangle is cut off parallel to the base. The light-shielding wall 170MH has such a wedge-shaped cross-section.

[0105] The light-shielding wall 170MH with this wedge-shaped cross-section has the following advantages: it is easy to insert, and its width is greater than that of the slit 161 (see reference). Figure 5 The narrow slit 162M is easy to close, and the part of the slit 162M that is higher than the upper end of the light-shielding wall 170MH is easy to close.

[0106] When assembling the input device 100M2, when fixing the electrostatic sensor 140M onto the housing 130M, the light-shielding wall 170MH is inserted into the through hole 141M. Furthermore, when mounting the laminate of the transparent plate 150, the buffer 160M, and the skin 180 onto the electrostatic sensor 140M, the light-shielding wall 170MH is inserted into the through hole 152 of the transparent plate 150 and the slit 162M of the buffer 160M. At least a portion of the light-shielding wall 170MH (here, the portion inside the slit 162M) is disposed inside the buffer 160M. In other words, at least a portion of the light-shielding wall 170MH is disposed inside the slit 162M.

[0107] Figure 12 This diagram illustrates an example of the operating state of the input device 100M2. For example... Figure 12As shown, if the upper part of the light-shielding wall 170MH on the surface of the skin 180 is pressed slightly downward with the fingertip FT, the fingertip FT will come into contact with the upper end of the light-shielding wall 170MH through the skin 180. Thus, the user experiences the tactile sensation of the fingertip FT contacting a hard protrusion. Therefore, the user can perceive the presence of a protrusion on the lower side of the skin 180.

[0108] Figure 13 This is a diagram illustrating the installation method and planar structure of the input device 100M3 installed on the vehicle 50 in the third variation of the embodiment. Figure 14 It means in Figure 13 The image shows the state where the fingertip FT presses the skin downwards at a 180° angle in the BB view section. The input device 100M3 has the function of... Figures 1 to 7 The input device 100 shown and Figure 11 as well as Figure 12 The structure formed by the input device 100M2 shown is illustrated. Therefore, the input device 100M3 is described as being covered by a skin 180.

[0109] like Figure 13 As shown in (A), the input device 100M3 is, for example, installed on the center armrest 51A of the rear seat 51 of the vehicle 50. A skin 180 is exposed on the upper surface of the center armrest 51A. The portion of the input device 100M3 after removing the skin 180 has... Figure 13 The structure shown in (B) is as follows. Figure 13 (C) shows the equivalent of using Figure 13 The portion enclosed by the dotted line in (B). Here, the method of installing the input device 100M3 on the center armrest 51A of the rear seat 51 is described, but the input device 100M3 can also be installed on the center armrest of the front seat. Furthermore, the input device 100M3 is not limited to the center armrest, and can also be installed on the door lining or other locations. Furthermore, it is not limited to vehicle 50, and can also be mounted on trains, airplanes, etc.

[0110] exist Figure 13 (C) shows the positional relationship of light-shielding walls 170S1–170S7, light-shielding walls 170MH1–170MH4, and symbols 185A, 185B, 185E–185N. Light-shielding walls 170S1–170S7 are an example of the first light-shielding wall. Light-shielding wall 170S1, located between symbols 185A and 185B, corresponds to… Figure 5 The light-shielding wall 170S is shown. Light-shielding walls 170S2 to 170S7 are used... Figures 1 to 7 Similarly, the light-shielding wall 170S described herein is, as an example, made of deformable and flexible fabric. Light-shielding walls 170MH1 to 170MH4 are examples of the second type of light-shielding wall. Hereinafter, in the description... Figure 13Before detailing the planar structure shown in (C) and the operation method of the input device 100M3, the following will be explained. Figure 14 The cross-sectional structure shown.

[0111] exist Figure 14 The image shows the state where the surface of the skin 180 is pressed downwards with the fingertip FT. By slightly pressing the surface of the skin 180 downwards, the lower surface of the skin 180 contacts the upper end of the light-shielding wall 170MH1. That is, the upper end of the light-shielding wall 170MH1 is offset downwards more than the upper surface of the buffer 160. This is similar to using... Figure 11 as well as Figure 12 The same applies to light-shielding wall 170MH, and also to light-shielding walls 170MH2 to 170MH4. Light-shielding walls 170MH1 to 170MH4 are made of resin and are rigid and non-deformable, and are offset further downward than the upper surface of the buffer 160.

[0112] In addition, such as Figure 14 As shown, the housing 130M has through holes 131A and 131G. Through hole 131A is an example of a first through hole, and through hole 131G is an example of a second through hole. LEDs 120A and 120G, which are mounted on the upper surface of the substrate 110, are respectively housed inside the through holes 131A and 131G. LED 120A is an example of a first light source, and LED 120G is an example of a second light source. LEDs 120A and 120G are connected to the openings 184A and 184G of the mask 184 by optical paths 121A and 121G, respectively. Optical path 121A is an example of a first optical path, and optical path 121G is an example of a second optical path.

[0113] Through hole 131 A Figure 14 As shown, the housing 130M extends through the optical path 121 A in the Z direction. Figure 14 Only through hole 131A is shown as the first through hole penetrating the housing 130M in the Z direction, but with Figure 13 The through holes, corresponding to symbols 185B, 185E, and 185F shown in (C), penetrate the housing 130M in the extension direction (Z direction) of the optical path corresponding to symbols 185B, 185E, and 185F. Therefore, the housing 130M has a plurality of first through holes penetrating in the extension direction of a plurality of first optical paths. Furthermore, the through holes 131G are as follows... Figure 14 As shown, the housing 130M extends through the optical path 121G in the Z direction.

[0114] Furthermore, the electrostatic sensor 140M is disposed on the side opposite to the buffer 160 relative to the transparent plate 150, and has a through hole 141M. The through hole 141M is an example of a through hole for a capacitance detection electrode. A light-shielding wall 170MH1 passes through the through hole 141M. The light-shielding wall 170MH1 is a portion of the wall portion 135G of the housing 130M located around the through hole 131G, extending towards the skin 180. The wall portion 135G is a wall portion located around the through hole 131G and between the through hole 131A and the through hole 131G. The wall portion 135G is an example of a second wall portion located around a second through hole (through hole 131G).

[0115] In addition, such as Figure 14 As shown, the transparent plate 150 has a groove 151 and a through hole 153, and the buffer member 160 has slits 161 and 162M. The groove 151 is an example of a first groove, and the through hole 153 is an example of a through hole provided in the transparent plate-shaped member (transparent plate 150). The slit 161 is an example of a first slit, and the slit 162M is an example of a second slit. A light-shielding wall 170S1 is housed inside the groove 151 and the slit 161. That is, at least a portion of the light-shielding wall 170S1 is provided inside the slit 161. Furthermore, a light-shielding wall 170MH1 is housed inside the through hole 153 and the slit 162M. That is, at least a portion of the light-shielding wall 170MH1 is provided inside the slit 162M. The light-shielding wall 170MH1, with its insertion through the through-hole 141M of the electrostatic sensor 140M, is housed within the through-hole 153 and the slit 162M. Figure 14 The light-shielding wall 170MH1 is shown, but light-shielding walls 170MH2 to 170MH4 are not shown, although light-shielding walls 170MH2 to 170MH4 also have the same structure.

[0116] like Figure 14 As shown, the light-shielding wall 170MH1, together with the wall portion 135G of the housing 130M, optically divides the space between the optical paths 121A and 121G. Therefore, the position of the light-shielding wall 170MH1 in the XY plane matches the position of the wall portion 135G. More specifically, since the light propagating inside the optical paths 121A and 121G travels from bottom to top, the position of the light-shielding wall 170MH1 in the direction of light propagation is further downstream than the wall portion 135G. In order to efficiently guide the upward-propagating light within the through holes 131A and 131G on both sides of the wall portion 135G to the openings 184A and 184G of the mask 184, the light-shielding wall 170MH1 should not be located inside the through holes 131A and 131G when viewed from above. The same structure applies to light-shielding walls 170MH2 to 170MH4.

[0117] Furthermore, the light-shielding wall 170MH1, on a section (XZ section) perpendicular to the extension direction (Y direction), is... Figure 11 as well as Figure 12 Similarly, the light-shielding wall 170MH shown has a wedge-shaped cross-section in the X direction, narrowing from the lower end to the upper end. Since the fingertip FT contacts the upper end of the light-shielding wall 170MH1 via the skin 180, the wedge shape of the XZ section of the light-shielding wall 170MH1 has a shape in which the apex of an isosceles triangle is cut off parallel to the base. This is also true for light-shielding walls 170MH2 to 170MH4.

[0118] Next, the explanation Figure 13 Detailed information regarding the planar structure shown in (C) and the operation method of the input device 100M3. For example... Figure 13 As shown in (C), light-shielding walls 170S1 and 170S2 extend in the Y direction and are equidistant in the X direction. Light-shielding walls 170S1 and 170S2 are positioned on the +Y and -Y direction sides of light-shielding wall 170S3, which extends in the X direction, and light-shielding walls 170S1 to 170S3 are arranged in a cross shape when viewed from above.

[0119] Light-shielding walls 170MH1 to 170MH4 are arranged in a rectangular ring surrounding light-shielding walls 170S1 to 170S3, which are configured in a cross shape. Specifically, light-shielding wall 170MH1 extends in the Y direction on the -X direction side of light-shielding walls 170S1 to 170S3. Light-shielding wall 170MH2 extends in the Y direction on the +X direction side of light-shielding walls 170S1 to 170S3. Light-shielding wall 170MH3 extends in the X direction on the +Y direction side of light-shielding walls 170S1 to 170S3. Light-shielding wall 170MH4 extends in the X direction on the -Y direction side of light-shielding walls 170S1 to 170S3. That is, the light-shielding walls 170S1 to 170S3 are arranged between the four optical paths (corresponding to the four optical paths of symbols 185A, 185B, 185E, and 185F) surrounded by the light-shielding walls 170MH1 to 170MH4.

[0120] In addition, light-shielding walls 170MH1 to 170MH4 are configured together with light-shielding walls 170S1 to 170S3 to divide the four optical paths (the four optical paths corresponding to symbols 185A, 185B, 185E, and 185F).

[0121] Light-shielding wall 170S4 extends from the end of light-shielding wall 170MH3 on the -X direction side along symbol 185I in an oblique direction characterized by both the -X and +Y directions. Light-shielding wall 170S5 extends from the end of light-shielding wall 170MH3 on the +X direction side along symbol 185I in an oblique direction characterized by both the +X and +Y directions. Light-shielding wall 170S6 extends from the end of light-shielding wall 170MH4 on the -X direction side along symbol 185J in an oblique direction characterized by both the -X and -Y directions. Light-shielding wall 170S7 extends from the end of light-shielding wall 170MH4 on the +X direction side along symbol 185J in an oblique direction characterized by both the +X and -Y directions.

[0122] Symbols 185A, 185B, 185E-185N are transmitted through Figure 14 The symbols for openings 184A and 184G shown are displayed on the surface of the epidermis 180 when illuminated, but... Figure 13 The opening is omitted in (C). Regarding symbols 185A, 185B, 185E to 185N, the states where multiple LEDs 120 are individually illuminated are shown. As an example, symbols 185A, 185G, and 185K indicate a state where the emitted color changes from white to orange. Figure 13 In (C), the portion that changes to orange is shown with pear skin (tiny dots). To achieve this color change, each LED 120 can be configured with a structure containing two LEDs: a white LED and an orange LED.

[0123] Regarding symbols 185A and 185K, the entire symbol is illuminated in orange. Regarding symbol 185G, the portion near the fingertip FT is displayed in the deepest orange, turning white as it moves away from the fingertip FT, while the end on the -Y direction side is illuminated in white. Symbol 185G, with its continuously changing light color, can be achieved by arranging multiple LEDs 120 capable of emitting both white and orange dual-color light along the extension direction (Y direction) of symbol 185G.

[0124] Symbols 185A, 185B, 185E, and 185F are illuminated within the rectangular area enclosed by light-shielding walls 170MH1 to 170MH4, and within the four areas divided into four parts by light-shielding walls 170S1 to 170S3. Symbols 185A, 185B, 185E, and 185F are examples of the first symbol. Symbols 185A, 185B, 185E, and 185F respectively represent the left front seat, right front seat, left rear seat, and right rear seat of vehicle 50, indicating the position of operation on the skin 180 when selecting the left front seat, right front seat, left rear seat, and right rear seat.

[0125] Symbols 185G to 185N are examples of the second symbol. Symbols 185G and 185H extend along the Y-direction of the light-shielding walls 170MH1 and 170MH2, respectively. Symbols 185K and 185L are displayed on the -Y-direction side of symbols 185G and 185H, respectively. Symbols 185K and 185L represent loudspeakers, and symbols 185G and 185H represent the volume levels of loudspeakers on the -X-direction side (left side) and +X-direction side (right side).

[0126] Optical path 121G corresponding to symbol 185G, such as Figure 14 It is located between symbol 185G and LED120G as shown. Symbol 185G is as follows. Figure 13 As shown in (C), it extends in the Y direction, and therefore LED120G also extends in the Y direction. The length of LED120G in the Y direction is approximately the same as the length of symbol 185G in the Y direction. LED120G has a section extending along the light-shielding wall 170MH1 and outputs light to the buffer 160. The light output by LED120G passes through the opening 184G of the mask 184 and illuminates symbol 185G on the skin 180. Like LED120G, symbol 185G also has a section extending along the light-shielding wall 170MH1. Furthermore, this is also true for symbol 185H and the LED120 corresponding to symbol 185H.

[0127] Symbols 185I and 185J are examples of the second symbol. Symbol 185I extends along light-shielding walls 170MH3, 170S4, and 170S5. Symbol 185J extends along light-shielding walls 170MH4, 170S6, and 170S7. The X-direction extensions of symbols 185I and 185J extend along light-shielding walls 170MH3 and 170MH4. The two LEDs 120 that output light to the two optical paths corresponding to symbols 185I and 185J have the same shape as symbols 185I and 185J when viewed from above, and therefore have extensions along the X-direction of light-shielding walls 170MH3 and 170MH4. The X-direction extensions of light-shielding walls 170MH3 and 170MH4 guide the user's fingertip FT.

[0128] The symbols 185M and 185N are displayed on the +Y and -Y sides of symbols 185I and 185J, respectively. Symbols 185M and 185N represent the airflow level of the air conditioning fan (FAN) and the temperature (TEMP) level of the air conditioning system of vehicle 50.

[0129] Here, we will explain the concept by assuming there are 10 optical paths corresponding to 10 symbols 185B, 185E, 185F, 185H to 185N, excluding symbols 185A and 185G. Optical paths 121A and 121G corresponding to symbols 185A and 185G are as follows: Figure 14 As shown. The optical paths corresponding to symbols 185A, 185B, 185E, and 185F are examples of the first optical path. The optical paths corresponding to symbols 185G to 185N are examples of the second optical path.

[0130] Light-shielding walls 170S1 to 170S3, constructed of flexible components, optically divide the four optical paths (an example of the first optical path) corresponding to symbols 185A, 185B, 185E, and 185F. Furthermore, light-shielding walls 170MH1 to 170MH4 are configured to surround the four optical paths (an example of the first optical path) corresponding to symbols 185A, 185B, 185E, and 185F. Light-shielding walls 170MH1 to 170MH4 optically divide the four optical paths (an example of the first optical path) corresponding to symbols 185A, 185B, 185E, and 185F.

[0131] Furthermore, light-shielding walls 170S4 and 170S5, which are made of flexible components, optically divide the optical path (second optical path) corresponding to symbol 185I at both ends. Similarly, light-shielding walls 170S6 and 170S7 optically divide the optical path (second optical path) corresponding to symbol 185J at both ends.

[0132] Figure 15 This diagram illustrates the principle of position detection in the 140M electrostatic sensor. Figure 15 In this example, one of the multiple transparent electrodes included in the electrostatic sensor 140M is shown as a resistor R1, and the state corresponding to the fingertip FT being in contact with a capacitor is shown. When the fingertip FT contacts the transparent electrode, currents I1 and I2 flow from both ends of the transparent electrode to the fingertip FT. The ratio of the values ​​of currents I1 and I2 varies depending on the position from the ends of the transparent electrode. This is because the ratio of the resistance values ​​from the ends of the transparent electrode to the position where the fingertip FT contacts it changes. Therefore, the position where the fingertip FT contacts the skin 180 can be detected. Furthermore, the position of the operation that moves the fingertip FT along an operating section such as the light-shielding wall 170MH1 to 170MH4 can be detected.

[0133] An electrostatic sensor 140M is used to detect the proximity or operation position of any symbol displayed on the skin 180 of the fingertip. The electrostatic sensor 140M is less expensive than a touch panel, thus reducing costs. However, this is just one example; the same through-hole as the through-hole 141M can also be provided in a self-capacitive or mutual-capacitive touch panel 140 to calculate the coordinate position of the fingertip relative to the skin 180.

[0134] In the input device 100M3 described above, if as follows Figure 13 As shown in (C), the user brings their fingertip FT close to the symbol 185G, and as... Figure 14 Pressing the skin 180 as shown, the upper end of the light-shielding wall 170MH1 touches the fingertip FT. At this time, the symbols 185G and 185K change from white to orange. Since the light-shielding wall 170MH1 extends in the Y direction, if the fingertip FT is moved along the light-shielding wall 170MH1 in the Y direction, the electrostatic sensor 140M (refer to...) will... Figure 11 The position of the fingertip FT is detected, and symbol 185G is illuminated so that the area where the fingertip FT is located appears as a deep orange. The upper end of the light-shielding wall 170MH1 serves as a guide for the fingertip along symbol 185G. If the fingertip FT is moved along the upper end of the light-shielding wall 170MH1, the detection accuracy when detecting the position of the fingertip FT can be improved because the position of the fingertip FT relative to the electrostatic sensor 140M in the height direction is fixed. The same applies to light-shielding walls 170MH2 to 170MH4.

[0135] If the fingertip FT is moved along the light-shielding wall 170MH1 in the Y direction, the portion of symbol 185G that is illuminated in the darkest orange will move along the position of the fingertip FT. The user can thus adjust the speaker volume level while confirming the illumination of symbol 185G. Furthermore, the speaker volume level can be adjusted similarly by moving the fingertip FT along the light-shielding wall 170MH2 in the Y direction. For example, symbol 185G is designated for the left rear passenger, and symbol 185H is designated for the right rear passenger.

[0136] Furthermore, regarding the airflow and temperature levels of the air conditioning unit, since adjustments can be made independently for the left front seat, right front seat, left rear seat, and right rear seat, you can select your seat by touching any of the symbols 185A, 185B, 185E, or 185F with your fingertip (FT). Among the symbols 185A, 185B, 185E, and 185F, the symbol corresponding to the user's selected seat changes from white to orange.

[0137] If the user brings their fingertip FT close to symbols 185M and 185I, symbols 185M and 185I will turn orange. The user can adjust the airflow level of the air conditioning unit by moving their fingertip FT along the X-direction of the light-shielding wall 170MH3. Symbols 185I and 185G are also illuminated so that the area where the fingertip FT is located is the darkest orange.

[0138] Furthermore, if the user brings their fingertip FT close to symbols 185N and 185J, symbols 185N and 185J will turn orange. The user can adjust the temperature level of the air conditioning unit by moving their fingertip FT along the light-shielding wall 170MH4 in the X direction. Symbols 185J and 185G are similarly illuminated to make the area where the fingertip FT is located the most intense orange.

[0139] As described above, due to the provision of a first light-shielding wall (170S (reference)) in the light-transmitting buffer 160 Figures 1 to 7 ), 170S1~170S7 (refer to Figure 13 The (C)))))))))))))))))))))))))))))))))))))))))))))))))))))"""""" ≵"" � " ...

[0140] Furthermore, since the first light-shielding wall (170S, 170S1 to 170S7) can deform together with the buffer member 160, the portion of the skin 180 above the first light-shielding wall (170S, 170S1 to 170S7) and the portion without the first light-shielding wall (170S, 170S1 to 170S7) can be pressed downwards in the same way. Furthermore, this allows for the division of the optical path (121A, 121B) even while pressed downwards.

[0141] Furthermore, since the first light-shielding wall (170S, 170S1 to 170S7) is made of light-shielding fabric, the interior of the transparent plate 150 and the buffer member 160 can be divided into multiple first light paths (121A, 121B), and the multiple first light paths (121A, 121B) can be included to realize a deformable buffer member 160. In addition, since the fabric serving as the first light-shielding wall (170S, 170S1 to 170S7) can be inserted into the slit 161 provided in the buffer member 160, it can be easily manufactured.

[0142] Furthermore, since the first light-shielding wall (170S, 170S1 to 170S7) has the same or higher flexibility as the buffer 160, it is possible to divide the interior of the buffer 160 into multiple first optical paths (121A, 121B) while maintaining the flexibility of the buffer 160.

[0143] Furthermore, since at least a portion of the first light-shielding wall (170S, 170S1 to 170S7) is disposed inside the slit of the buffer 160, it is easy to position the first light-shielding wall (170S, 170S1 to 170S7) inside the buffer 160, enabling long-term stable use of multiple first optical paths (121A, 121B). Moreover, if, as with the first light-shielding walls 170S1 to 170S3, it is disposed in an area where the second light-shielding walls 170MH1 to 170MH4, which have a higher hardness than the buffer 160, do not exist, even when pressing and sliding the finger within that area, there will be no tactile discomfort during operation, allowing it to be used like a touchpad.

[0144] Furthermore, due to the inclusion of a second light-shielding wall (170H) that is at least partially disposed inside the buffer 160 or 160M and has a higher hardness than the buffer 160, Figure 10 ), 170MH (refer to Figure 11 as well as Figure 12 ), or 170MH1~170MH4 (refer to Figure 13 Therefore, a protrusion can be provided inside the buffer 160 or 160M, and an input device (100, 100M1, 100M2, 100M3) can be provided so that the user can use his / her fingertip FT to perceive the second light shield (170H, 170MH, or 170MH1 to 170MH4).

[0145] Furthermore, since the second light-shielding wall (170MH1 to 170MH4) is configured to surround the perimeter of the plurality of first optical paths (121A, 121B), protrusions can be provided inside the buffer 160 around the perimeter of the plurality of first optical paths (121A, 121B), thus providing an input device (100M3) that allows the user to perceive the area surrounded by the second light-shielding wall (170MH1 to 170MH4) with their fingertips (FT).

[0146] Furthermore, since the second light-shielding walls (170MH1 to 170MH4) are configured together with the first light-shielding walls (170S1 to 170S3) to divide the multiple first optical paths (121A, 121B), it is possible to combine the flexible first light-shielding walls (170S1 to 170S3) and the rigid second light-shielding walls (170MH1 to 170MH4) to divide the multiple first optical paths (121A, 121B). Additionally, the first light-shielding walls (170S1 to 170S3) are located inside the buffer member 160 at positions where there are no protrusions around the first optical paths (121A, 121B), while the second light-shielding walls (170MH1 to 170MH4) are located inside the buffer member 160 at positions where there are protrusions around the multiple first optical paths (121A, 121B). Therefore, it is possible to freely combine the positions where there are protrusions and the positions where there are no protrusions around the multiple first optical paths (121A, 121B), and arrange the presence or absence of protrusions around the multiple first optical paths (121A, 121B) into various patterns.

[0147] Furthermore, since the first light-shielding wall (170S1 to 170S3) is disposed between the plurality of first optical paths (121A, 121B) surrounded by the second light-shielding wall (170MH1 to 170MH4), an input device (100M3) can be provided in which the skin 180 of the portion where the plurality of first optical paths (121A, 121B) exist inside the second light-shielding wall (170MH1 to 170MH4) is soft and the skin 180 of the portion where the second light-shielding wall (170MH1 to 170MH4) exists is hard.

[0148] Furthermore, since the upper end of the second light-shielding wall (170H) is exposed on the upper surface of the buffer 160, even if the skin 180 is not visible, the presence of a hard part is not apparent. However, by touching the portion above the second light-shielding wall (170H) within the skin 180, a tactile sensation of a hard part can be provided. Additionally, when the user presses the portion above the second light-shielding wall (170H) within the skin 180 downwards with their fingertip FT, the fingertip FT can be guided along the second light-shielding wall (170H). Furthermore, if the height of the second light-shielding wall (170H) in the Z direction is fixed in the extending direction (Y direction), the distance between it and the electrostatic sensor 140 can be fixed when guiding the fingertip FT along the extending direction (Y direction), enabling stable detection by the electrostatic sensor 140.

[0149] Furthermore, since the upper end of the second light-shielding wall (170MH, 170MH1 to 170MH4) is offset towards the lower surface than the upper surface of the buffer 160, although the protrusion is not visible even when looking at the skin 180, pressing the portion above the second light-shielding wall (170MH, 170MH1 to 170MH4) in the skin 180 downwards provides a tactile sensation of a hard protrusion. Moreover, when the user presses the portion above the second light-shielding wall (170MH, 170MH1 to 170MH4) in the skin 180 downwards with their fingertip FT, the fingertip FT can be guided along the second light-shielding wall (170MH, 170MH1 to 170MH4). Furthermore, if the height of the second light-shielding wall (170MH, 170MH1 to 170MH4) in the Z direction is fixed in the extension direction, the distance between the fingertip FT and the electrostatic sensor 140M can be fixed when guiding the fingertip FT along the extension direction, and stable detection can be performed by the electrostatic sensor 140M.

[0150] Furthermore, since the buffer 160 has a second slit (162) that extends between the upper and lower surfaces, and at least a portion of the second light-shielding wall (170H) is disposed inside the second slit (162), the second light-shielding wall (170H) is easy to position and can be used stably for a long period of time.

[0151] Furthermore, the skin 180 includes a second light source (LED120G) that is disposed on the lower surface side of the buffer 160 and extends along the extending direction of the second light-shielding wall (170MH1) when viewed from above, and outputs light to the buffer 160. The skin 180 has a second transmission area (184G) through which light emitted from the second light source (LED120G) and transmitted through the buffer 160 is transmitted as light representing the shape of the second symbol (185G) when viewed from above. The second transmission area (184G) has a section that extends along the extending direction of the light-shielding wall 170MH1 when viewed from above. Therefore, by guiding the fingertip FT along the extending direction of the light-shielding wall 170MH1, operation along the second symbol (185G) can be performed, improving operability using symbols used for level adjustment, etc. Furthermore, if the height of the second light-shielding wall (170MH1) in the Z direction is fixed in the extending direction, the distance between it and the electrostatic sensor 140M can be fixed when guiding the fingertip FT along the extending direction, enabling stable detection by the electrostatic sensor 140M. The same applies to light-shielding walls 170MH2 to 170MH4.

[0152] Furthermore, due to the inclusion of the third light-shielding wall (170SB), the light-shielding properties between the multiple first optical paths (121A, 121B) can be improved through a double wall. At least a portion of the third light-shielding wall (170SB) is disposed inside the buffer member 160, dividing the multiple first optical paths (121A, 121B) together with the first light-shielding wall (170SA), forming a double wall, and is deformable together with the buffer member 160. Furthermore, this improves the visual recognizability of the multiple first symbols (185A, 185B) illuminated by the multiple first optical paths (121A, 121B).

[0153] Furthermore, since the third light-shielding wall (170SB) is a light-shielding fabric, it can, together with the first light-shielding wall (170SA), divide the interior of the transparent plate 150 and the buffer member 160 into multiple first light paths (121A, 121B), and can realize a buffer member 160 that can be deformed to include multiple first light paths (121A, 121B).

[0154] Furthermore, since the third light-shielding wall (170SB) has the same softness as the buffer 160, or has a higher softness than the buffer 160, it is possible to divide the interior of the buffer 160 into multiple first optical paths (121A, 121B) together with the first light-shielding wall (170SA) while maintaining the softness of the buffer 160.

[0155] Furthermore, since the buffer 160 has a third slit (161B) that extends between the lower and upper surfaces, and at least a portion of the third light-shielding wall (170SB) is disposed inside the third slit (161B), it is easy to position the third light-shielding wall (170SB) inside the buffer 160, and multiple first optical paths (121A, 121B) can be used stably over a long period of time.

[0156] Furthermore, since a transparent plate 150, which is light-transmitting and is disposed between the buffer 160 and the first light source (LED 120) and holds the lower surface of the buffer 160, is included, the soft buffer 160 can be stably maintained, and proper operation of the buffer 160 can be achieved over a long period of time. In addition, by reinforcing the buffer 160, the overall posture of the input device (100) can be maintained over a long period of time.

[0157] Furthermore, since the lower end of the light-shielding wall 170S is housed in the first groove (151) of the transparent plate 150, the lower end of the light-shielding wall 170S can be positioned in a stable position, and the light-shielding wall 170S can be positioned over a long period of time.

[0158] Furthermore, since the lower end of the light-shielding wall 170S is fixed to the transparent plate 150 in the first groove (151) by adhesive 171, the lower end of the first light-shielding wall (170S) can be stably fixed, and the positioning of the first light-shielding wall (170S) relative to the transparent plate 150 and the buffer member 160 can be maintained for a long time.

[0159] Furthermore, since the transparent plate 150, which is transparent and has light transmission and is disposed between the buffer member 160 and the first light source (120), and the lower end of the second light-shielding wall (170H or 170MH1 to 170MH4) is housed in the through hole (152, 153) or the second groove provided in the transparent plate 150, the soft buffer member 160 can be stably maintained, and the proper operation of the buffer member 160 can be achieved over a long period of time. In addition, by reinforcing the buffer member 160, the posture of the input device 100 as a whole can be maintained over a long period of time. Furthermore, the lower end of the second light-shielding wall (170H or 170MH1 to 170MH4) can be positioned in a stable position, and the positioning of the second light-shielding wall (170H or 170MH1 to 170MH4) can be maintained over a long period of time.

[0160] Furthermore, since the lower end of the third light-shielding wall (170SB) is housed in the third groove (151B) of the transparent plate 150, which is provided between the buffer 160 and the first light source (120A, 120B) and is transparent, the soft buffer 160 can be stably maintained, and proper operation of the buffer 160 can be achieved over a long period of time. In addition, by reinforcing the buffer 160, the overall posture of the input device (100) can be maintained over a long period of time.

[0161] Furthermore, since the lower end of the third light-shielding wall (170SB) is fixed to the transparent plate 150 in the third groove (151B) by adhesive 171, the lower end of the third light-shielding wall (170SB) can be stably fixed, and the positioning of the third light-shielding wall (170SB) relative to the transparent plate 150 and the buffer member 160 can be maintained for a long time.

[0162] Furthermore, since it includes a display device (100A) and an electrostatic sensor 140, wherein the display device (100A) includes a transparent plate 150 that holds a buffer 160 on which the first light-shielding wall (170S) is provided, and the electrostatic sensor 140 is provided on the opposite side of the transparent plate 150 that holds the buffer 160 and detects operation on the skin 180, it is possible to provide an input device (100, 100M3) that detects the position of the fingertip FT approaching the skin 180 for operation and accepts the operation.

[0163] Furthermore, a housing 130 is provided on the opposite side of the transparent plate 150 of the electrostatic sensor 140. This housing 130 has multiple first through holes (131A, 131B) that, when viewed from above, correspond to and extend through the multiple first optical paths (121A, 121B) in their respective directions. Multiple first light sources (LEDs 120A, 120B) are housed within each of the multiple first through holes (131A, 131B). Therefore, the positions of the multiple first optical paths (121A, 121B) and the multiple first light sources (LEDs 120A, 120B) can be accurately determined, enabling stable illumination over a long period.

[0164] Furthermore, since the first light-shielding wall (170S) is located in the area where the first wall portion (135A) is situated between the plurality of first through holes (131A, 131B) in the housing 130 when viewed from above, the plurality of first symbols (185A, 185B) can be stably illuminated by the plurality of first light sources (LED120A, 120B) without the first light-shielding wall (170S) blocking the plurality of first light paths (121A, 121B).

[0165] In addition, the device includes a display device (100A), an electrostatic sensor 140, and a housing 130. The display device (100A) includes a second light-shielding wall (170H). The electrostatic sensor 140 is disposed on the opposite side of the holding buffer 160 of the transparent plate 150 and detects the operation of the skin 180. The housing 130 is disposed on the opposite side of the side of the transparent plate 150 where the electrostatic sensor 140 is disposed, and has a second through hole (131C, 131D) extending in the direction of the second light path (121C, 121D) between the second light source (120C, 120D) and the second transmission area (184C, 184D) when viewed from above. The second light source (120C, 120D) is housed in the second through hole (131C, 131D). Therefore, the positions of multiple second optical paths (121C, 121D) and multiple second light sources (LED120C, 120D) can be accurately determined by the housing 130, enabling stable illumination over a long period of time.

[0166] Furthermore, since the second light-shielding wall (170MH1) is located in the area of ​​the second wall portion (135G) surrounding the second through hole (131G) of the housing 130 when viewed from above, the second symbol (185G) can be stably illuminated by the second light source (LED120G) without the second light-shielding wall (170MH1) blocking the second light path (121G).

[0167] Furthermore, since the second light-shielding wall (170H) is integrally formed with the transparent plate 150 through two-color molding, and is the part that protrudes from the transparent plate 150 through the through hole (152) and extends towards the skin 180, the second light-shielding wall (170H) and the transparent plate 150 can be integrally manufactured through two-color molding, which can reduce the number of manufacturing processes and make manufacturing easier. In addition, the positioning accuracy of the transparent plate 150 and the second light-shielding wall (170H) can be improved, and the second optical path (121C, 121D) can be stably ensured.

[0168] Furthermore, since the capacitance detection electrode (140M) has a through hole (141M), and the second light-shielding wall (170MH) is a portion of the second wall (135B) surrounding the second through hole (131C, 131D) of the base (130) that extends through the through hole (141M) of the capacitance detection electrode (140M) towards the skin (180), the base (130) and the second light-shielding wall (170MH) can be integrally manufactured, reducing the number of manufacturing steps and simplifying manufacturing. In addition, the positioning accuracy of the base (130) and the second light-shielding wall (170MH) can be improved, stably ensuring the second optical path (121C, 121D).

[0169] Furthermore, the electrostatic sensor 140M has a through hole 141M, and the second light-shielding wall (170MH1) is a portion of the second wall (135G) surrounding the second through hole (131G) of the housing 130, extending through the through hole 141M of the electrostatic sensor 140M towards the skin 180. By providing the through hole 141M and inserting the second light-shielding wall (170MH1) in the electrostatic sensor 140M in this way, the design flexibility can be improved.

[0170] Furthermore, since the second light-shielding wall (170MH1) has a wedge-shaped cross-sectional shape in which the width of the cross-section perpendicular to the extension direction narrows from the lower side to the upper side of the buffer member 160, it has the advantage of being easy to insert into the second slit (162M) and easy to make the part of the second slit (162M) that is higher than the upper end of the second light-shielding wall (170MH1) closed.

[0171] Furthermore, since it also includes a substrate 110 disposed on the opposite side of the electrostatic sensor 140 relative to the housing 130 and on which the second light source (120C, 120D) is mounted, the second light source (120C, 120D) can be mounted on the underside of the housing 130, and wiring connected to the second light source (120C, 120D) can be ensured.

[0172] In addition, the device includes a display device (100A), an electrostatic sensor 140, and a housing 130. The display device (100A) includes a third light-shielding wall (170SB). The electrostatic sensor 140 is disposed on the opposite side of the buffer 160 relative to the transparent plate 150 and detects the operation on the skin 180. The housing 130 is disposed on the opposite side of the transparent plate 150 relative to the electrostatic sensor 140 and has a plurality of first through holes (131A, 131B) respectively disposed corresponding to a plurality of first optical paths (121A, 121B) and extending in the extension direction of the plurality of first optical paths (121A, 121B) when viewed from above. A plurality of first light sources (120A, 120B) are respectively housed in the plurality of first through holes (131A, 131B). Therefore, the housing 130 can accurately determine the positions of multiple first optical paths (121A, 121B) and multiple first light sources (LED120A, 120B), enabling stable light irradiation over a long period of time.

[0173] Furthermore, since the first light-shielding wall (170SA) and the third light-shielding wall (170SB) are arranged in the area where the first wall portion (135A) is located between the plurality of first through holes (131A, 131B) of the housing 130 when viewed from above, it is possible to stably illuminate the plurality of first symbols (185A, 185B) by the plurality of first light sources (LED120A, 120B) without the first light-shielding wall (170SA) and the third light-shielding wall (170SB) blocking the plurality of first light paths (121A, 121B).

[0174] Furthermore, since the housing 130 also includes a substrate 110 located on the opposite side of the side where the electrostatic sensor 140 is located and on which multiple first light sources (120A, 120B) are mounted, the structure including the third light-shielding wall (170SB) allows the first light sources (120A, 120B) to be mounted on the lower side of the housing 130, and ensures wiring for connection to the second light sources (120C, 120D).

[0175] Furthermore, the above description explains how a first light-shielding wall (170S, etc.) made of fabric is provided in the cushioning member 160, which is composed of a soft, light-transmitting component. However, the soft, light-transmitting part of the cushioning member 160 can also be made of rubber. In this case, the first light-shielding wall (170S, etc.) can also be made of rubber, and the rubber cushioning member 160 and the rubber first light-shielding wall (170S, etc.) can also be manufactured by two-color molding.

[0176] The above describes a display device and an input device according to exemplary embodiments of the present invention. However, the present invention is not limited to the specific embodiments disclosed, and various modifications and alterations can be made without departing from the claims.

[0177] Furthermore, embodiments can be combined with each other without contradiction, and features from different embodiments can also be combined with each other.

[0178] Explanation of reference numerals in the attached figures

[0179] 100, 100M1, 100M2, 100M3 Input Devices

[0180] 100A Display Device

[0181] 110 substrate

[0182] 120, 120A, 120B LEDs (first light source)

[0183] 120, 120C, 120D, 120G LEDs (secondary light source)

[0184] 121A and 121B optical paths (first optical path)

[0185] 121C and 121D optical paths (second optical path)

[0186] 130 Shell (Base)

[0187] 131A, 131B Through Holes (First Through Hole)

[0188] 131C, 131D, 131G Through holes (2nd through hole)

[0189] 135A Wall (1st wall)

[0190] 135B, 135G wall section (second wall section)

[0191] 140M Electrostatic Sensor (Capacitive Sensing Electrode)

[0192] 141M Through-hole (Through-hole for capacitance sensing electrode)

[0193] 150 Transparent panel (transparent panel-shaped component)

[0194] Slot 151 (Slot 1)

[0195] 152, 153 Through holes (through holes provided in transparent plate-like components)

[0196] 160 Cushioning element (soft component)

[0197] 161 Slit (First Slit)

[0198] 162, 162M slits (second slit)

[0199] 170S, 170SA, 170S1~170S7 Light-shielding wall (first light-shielding wall)

[0200] 171 Adhesive

[0201] 170H, 170MH, 170MH1~170MH4 Light-shielding wall (second light-shielding wall)

[0202] 170SB light-shielding wall (3rd light-shielding wall)

[0203] 180 epidermis

Claims

1. A display device, characterized in that, Include: The cushioning element is transparent to light. Multiple first light sources are disposed on the first surface side of the buffer member and output light to the buffer member; The skin is disposed on the second side opposite to the first surface of the buffer member, and has a plurality of first transmission areas that allow light emitted from the plurality of first light sources and transmitted through the buffer member to pass through as light representing the shape of the plurality of first symbols when viewed from above. The first light-shielding wall, at least a portion of which is disposed inside the buffer member, divides the multiple first optical paths from the multiple first light sources to the multiple first transmission areas. as well as A transparent plate-shaped component is disposed between the buffer and the first light source, maintaining the first surface of the buffer to be translucent.

2. The display device according to claim 1, wherein, The first light-shielding wall can deform together with the buffer.

3. The display device according to claim 1, wherein, The first light-blocking wall is a light-blocking fabric.

4. The display device according to claim 1, wherein, The first light-shielding wall has the same softness as the cushioning member, or has a higher softness than the cushioning member.

5. The display device according to claim 1, wherein, The buffer has a first slit extending between the first surface and the second surface. At least a portion of the first light-shielding wall is disposed inside the first slit.

6. The display device according to claim 1, wherein, The display device further includes: a second light-shielding wall, at least a portion of which is disposed inside the buffer member, having a higher hardness than the buffer member.

7. The display device according to claim 6, wherein, The second light-shielding wall is configured to surround the plurality of first optical paths, or, together with the first light-shielding wall, divide the plurality of first optical paths.

8. The display device according to claim 7, wherein, The first light-shielding wall is disposed between the plurality of first optical paths surrounded by the second light-shielding wall.

9. The display device according to claim 6, wherein, The end of the second light-shielding wall on the second surface is exposed on the second surface of the buffer.

10. The display device according to claim 6, wherein, The end of the second light-shielding wall on the second side is offset further toward the first side than the second side of the buffer.

11. The display device according to claim 6, wherein, The buffer has a second slit extending between the first surface and the second surface. At least a portion of the second light-shielding wall is disposed inside the second slit.

12. The display device according to claim 6, wherein, The display device further includes: a second light source disposed on the first surface side of the buffer member, arranged along the extending direction of the second light-shielding wall when viewed from above, and outputting light to the buffer member. The skin has a second transmission region through which light emitted from the second light source and transmitted through the buffer is transmitted as light representing the shape of the second symbol from a top view. The second transparent area is arranged along the extension direction of the second light-shielding wall when viewed from above.

13. The display device according to claim 1, wherein, The display device further includes: a third light-shielding wall, at least a portion of which is disposed inside the buffer member, which, together with the first light-shielding wall, divides the plurality of first optical paths, and forms two or more layers of walls with the first light-shielding wall, and is deformable together with the buffer member.

14. The display device according to claim 13, wherein, The third light-blocking wall is a light-blocking fabric.

15. The display device according to claim 13, wherein, The third light-shielding wall has the same softness as the cushioning member, or has a higher softness than the cushioning member.

16. The display device according to claim 13, wherein, The buffer has a third slit that extends between the first surface and the second surface. At least a portion of the third light-shielding wall is disposed inside the third slit.

17. The display device according to claim 1, wherein, The end of the first light-emitting side of the first light-shielding wall is housed in the first groove provided in the transparent plate-shaped member.

18. The display device according to claim 17, wherein, The end of the first light-emitting side of the first light-shielding wall is fixed to the transparent plate-shaped member in the first groove.

19. The display device according to claim 6, wherein, The end of the second light-shielding wall on the first light source side is housed in a through hole or a second groove provided in the transparent plate-shaped member.

20. The display device according to claim 13, wherein, The end of the third light-shielding wall on the first light source side is housed in the third groove provided in the transparent plate-shaped member.

21. The display device according to claim 20, wherein, The end of the third light-shielding wall on the first light source side is fixed to the transparent plate-shaped member in the third groove.

22. An input device, characterized in that, Include: The display device according to claim 1; and A capacitance detection electrode is disposed on the transparent plate-shaped member to detect operations on the epidermis.

23. The input device according to claim 22, wherein, The capacitance detection electrode is disposed on the opposite side of the side of the transparent plate member that holds the buffer.

24. The input device according to claim 23, wherein, The input device further includes: a base, disposed on the opposite side of the transparent plate-shaped member on which the capacitance detection electrode is disposed, and having a plurality of first through holes respectively corresponding to the plurality of first optical paths and extending through the plurality of first optical paths when viewed from above. The plurality of first light sources are respectively housed within the plurality of first through holes.

25. The input device according to claim 24, wherein, The first light-shielding wall is located in the area where the first wall portion is situated between the plurality of first through holes in the base when viewed from above.

26. The input device according to claim 24, wherein, The input device further includes: a substrate disposed on the opposite side of the base on the side where the capacitance detection electrode is disposed, and on which the plurality of first light sources are mounted.

27. An input device, characterized in that, Include: The display device according to claim 12; A capacitance detection electrode is disposed on the opposite side of the side of the transparent plate-shaped member that holds the buffer, and detects the operation on the epidermis; as well as The base is disposed on the opposite side of the transparent plate-shaped member on which the capacitance detection electrode is disposed, and has a second through hole extending in the direction of the second optical path between the second light source and the second transmission region when viewed from above. The end of the second light-shielding wall on the first light source side is disposed in the through hole or the second groove of the transparent plate-shaped member. The second light source is housed within the second through hole.

28. The input device according to claim 27, wherein, The second light-shielding wall is disposed in the area of ​​the second wall portion surrounding the second through hole of the base when viewed from above.

29. The input device according to claim 27, wherein, The second light-shielding wall is integrally formed with the transparent plate-shaped member by two-color molding. It is the part that passes through the through hole of the transparent plate-shaped member and protrudes from the transparent plate-shaped member and extends towards the skin.

30. The input device according to claim 27, wherein, The capacitance detection electrode has a through hole. The second light-shielding wall is a portion of the second wall surrounding the second through-hole of the base that extends into the skin through the through-hole of the capacitance detection electrode.

31. The input device according to claim 30, wherein, The second light-shielding wall has a wedge-shaped cross-sectional shape whose width narrows from the first surface side to the second surface side of the buffer member on a cross-section perpendicular to the extension direction.

32. The input device according to claim 27, wherein, The input device further includes: a substrate disposed on the opposite side of the base where the capacitance detection electrode is disposed, and the second light source is mounted thereon.

33. An input device, characterized in that, Include: The display device according to claim 20; A capacitance detection electrode is disposed on the opposite side of the side of the transparent plate-shaped member that holds the buffer, and detects the operation on the epidermis; as well as The base is disposed on the opposite side of the transparent plate-shaped member on which the capacitance detection electrode is disposed, and has a plurality of first through holes that, when viewed from above, are respectively disposed corresponding to the plurality of first optical paths and penetrate through the extension direction of the plurality of first optical paths. The plurality of first light sources are respectively housed within the plurality of first through holes.

34. The input device according to claim 33, wherein, The first and third light-shielding walls are disposed in the area where the first wall portion is located between the plurality of first through holes in the base when viewed from above.

35. The input device according to claim 25, wherein, The input device further includes: a substrate disposed on the opposite side of the base on the side where the capacitance detection electrode is disposed, and on which the plurality of first light sources are mounted.

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