Input apparatus, electronic apparatus, and electronic keyboard instrument

Abstract

To provide an input apparatus, an electronic apparatus, and an electronic keyboard instrument, which are highly repairable and which can perform a touch detection favorably.SOLUTION: An input apparatus includes: a touch detection substrate (240) having a first opening (4a) and including a touch pattern (243) provided on an outer circumference of the first opening (4a); a control substrate (260) having a light emitting part (6s); a reflector (250) provided between the touch detection substrate (240) and the control substrate (260) and including a light reflection region (5a) disposed in such a manner as to correspond to the light emitting part; a panel (210) including a touch surface (211); and a case (220) which has a second opening (2a) and to which the panel (210) is attached. Light emitted by the light emitting part (6s) is released to an exterior by way of the first opening (4a) and the second opening (2a). The case (220) and the reflector (250) are detachably fixed together with a fastening member.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to an input device, an electronic device, and an electronic keyboard instrument. [Background technology]

[0002] Touch-type input devices capable of performing operations such as setting and adjusting devices have been provided. Patent Document 1 discloses an input device equipped with a capacitive touch sensor. This input device is arranged in a layered manner, including a glass substrate having a touch surface and a capacitive touch sensor provided on the opposite side of the touch surface, a design layer arranged on the touch sensor side and made of a printed or film substrate, a light guide plate, and a circuit board provided with an LED that illuminates a design portion provided on the design layer through the light guide plate. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-167074 A Summary of the Invention [Problem to be solved by the invention]

[0004] The touch sensor is arranged without leaving any space between the touch surface and the touch sensor, so that the touch sensor can detect touches well. Therefore, the touch sensor of the conventional touch-type input device is firmly attached to the glass substrate by adhesion or the like so as not to be peeled off. However, when the touch sensor breaks down, it is not easy to replace only the touch sensor, and there are cases where the glass substrate on which the touch sensor is attached or the entire input device including the glass substrate needs to be replaced.

[0005] In view of the above, an object of the present disclosure is to provide an input device, an electronic device, and an electronic keyboard instrument that are easy to repair and capable of excellent touch detection. [Means for solving the problem]

[0006] The input device of the present disclosure includes a touch detection substrate having a first opening and a touch pattern provided on an outer periphery of the first opening, a control substrate having a light-emitting portion, a reflector provided between the touch detection substrate and the control substrate and having a light-reflecting region arranged corresponding to the light-emitting portion, a panel including a touch surface, and a case having a second opening and to which the panel is attached, wherein light emitted by the light-emitting portion is released to the outside through the first opening and the second opening, and the case and the reflector are removably fixed by a fastening member. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide an input device, an electronic device, and an electronic keyboard instrument that are easy to repair and capable of excellent touch detection. [Brief description of the drawings]

[0008] [Figure 1] 1 is a general perspective view of an electronic keyboard instrument according to an embodiment of the present invention, as viewed from the front side; [Diagram 2] FIG. 2 is an enlarged plan view showing an input device provided on a left sleeve of the electronic keyboard instrument according to the embodiment of the present invention. [Diagram 3] 1 is an exploded perspective view of an input device according to an embodiment of the present invention; [Figure 4] 2 is a perspective view of a case of the input device according to the embodiment of the present invention, seen from below. FIG. [Diagram 5] FIG. 2 is a plan view illustrating a touch detection substrate of the input device according to the embodiment of the present invention. [Figure 6] FIG. 2 is a perspective view of a reflector of the input device according to the embodiment of the present invention, seen from below. [Figure 7] 7 is a cross-sectional view of the input device according to the embodiment of the present invention taken along line VII-VII in FIG. 2. [Figure 8] 3A and 3B are cross-sectional views of the input device according to the embodiment of the present invention, where FIG. 3A shows a cross-section taken along line VIIIa-VIIIa in FIG. 2, and FIG. 3B shows a cross-section taken along line VIIb-VIIb in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] An embodiment of the present invention will be described with reference to the drawings. An electronic keyboard instrument 1 as an electronic device shown in FIG. 1 includes a main body 10 and a leg 100. The main body 10 includes a keyboard 20 having a plurality of keys 22 consisting of white keys 22W and black keys 22B, and a main body case 30 in which the keyboard 20 is provided. The leg 100 includes a pair of side plate members 110, a pedal frame 120, and a pedal device 130. In the following description, with the keyboard 20 placed at the front side, the front side (near side) in the front-rear direction (longitudinal direction of the keys) FB of the keys of the keyboard 20 is referred to as the front side F, the rear side (rear side) in the front-rear direction FB of the keys is referred to as the rear side B, the left side facing the keyboard 20 is referred to as the left side L, the right side is referred to as the right side R, the arrangement direction of the plurality of keys of the keyboard 20 is referred to as the left-right direction LR, and the top is referred to as the upper side Up and the bottom is referred to as the lower side Lo in the vertical direction UL of the electronic keyboard instrument 1.

[0010] The pair of side plate members 110 are plate-like members that are erected on the installation surface on the left and right sides of the electronic keyboard instrument 1 with both plate surfaces facing the left and right directions. The pedal frame 120 connects the side plate members 110 on both sides below the side plate members 110 on both sides. The pedal device 130 is provided at approximately the center of the pedal frame 120 in the left-right direction LR. The main body 10 is supported by legs 100.

[0011] In the main body 10, the main body case 30 has a horizontally elongated rectangular shape with the left-right direction LR as viewed from above, and includes a front plate 32 provided on the lower side Lo of the front side F of the keyboard 20, a left side plate 34 and a right side plate 35 connected to the left and right ends of the front plate 32 on the left and right sides of the keyboard 20, a front top plate 36F connected to the left side plate 34 and the right side plate 35 on the upper side Up of the rear side B of the keyboard 20, a rear plate (not shown) that faces the front plate 32 and constitutes the rear surface of the main body case 30, and a bottom plate (not shown) that constitutes the bottom surface of the main body case 30. A rear top plate 36B is provided on the rear side B of the front top plate 36F so as to be freely opened and closed. A music stand 36F1 is attached to the front top plate 36F at approximately the center in the left-right direction LR.

[0012] A volume knob 24 for adjusting the volume and other operations is provided on the right sleeve 38R, which is a sleeve between the keyboard 20 and the right side panel 35. A power button 32a is provided on the front panel 32 below the right sleeve 38R. An input device 200 is provided on the left sleeve 38L, which is a sleeve between the keyboard 20 and the left side panel 34 (located at the position of a clapper in a keyboard instrument), which allows settings and adjustments of the electronic keyboard instrument 1 by touch operation, as shown in FIG.

[0013] As shown in FIG. 3, the input device 200 includes a panel 210, a case 220, a light diffusion sheet 230, a touch detection board 240, a reflector 250, and a control board 260. The panel 210 is a substantially rectangular plate-shaped member that is long in the front-rear direction FB and is made of a transparent resin material such as acrylic. The upper surface of the panel 210 is a touch surface 211 that is touched by a finger or the like during a touch operation. The surface of the panel 210 opposite to the touch surface 211 (the lower surface of the panel 210) is painted black from the lower surface side except for the light-transmitting parts 11a, 11b, and 11c that correspond to the light-emitting parts 6s of the multiple light-emitting areas 6a, 6b, and 6c, so as to block light from the light-emitting parts 6s of the multiple light-emitting areas 6a, 6b, and 6c, which will be described later. The light transmitting portions 11a, 11b, and 11c are arranged in the following order from the front side F: light transmitting portions 11a, 11a, 11b, 11a, 11b, 11a, 11c, 11a, 11b, and 11a.

[0014] The case 220 is provided in a generally rectangular box shape that is long in the front-rear direction FB. The case 220 has a top plate 221 with a plate surface facing the up-down direction UL, and the top plate 221 includes a first mounting surface 221a that is an upper surface to which the panel 210 is attached. The case 220 is provided with a front plate 222, a left plate 223 (see FIG. 4), and a right plate 224 that are provided substantially hanging down from the top plate 221. The rear side B of the case 220 is open. The top plate 221 is slightly inclined (for example, 3 degrees from the horizontal plane) so as to descend from the front side F to the rear side B in accordance with the multiple keys 22 (see also FIG. 7). The front plate 222 and the right plate 224 have upper portions 222a, 224a that extend downward so as to be perpendicular to the inclined top plate 221, and lower portions 222b, 224b that connect to the upper portions 222a, 224a extend downward so as to be perpendicular to the horizontal plane. The lower portion 222b of the front plate 222 is provided with a substantially rectangular long hole 222b1 that is long in the left-right direction LR. The left plate 223 has a large cutout at approximately the center (see FIG. 4). Approximately the front half of the right plate 224 is a protruding plate 224b1 that protrudes downward Lo.

[0015] The front side F, right side R, and rear side B of the top plate 221 are provided with wall-shaped steps 221c relative to the first mounting surface 221a of the top plate 221. The height of the steps 221c is approximately the same as the plate thickness of the panel 210. The left side L of the steps 221c is open, and a protrusion 221c1 is provided at the left end of the rear side B of the steps 221c. The case 220 is also provided with a screw hole portion 225 having a screw hole that protrudes from the right side R of the rear end to the rear side B.

[0016] The lower end of the protruding plate 224b1 of the right side plate 224 is disposed with a clearance from the upper surface of the bottom plate of the main body case 30 to block vibrations during sound production. The screw hole 225 is fixed to a chassis (not shown) of the keyboard 20 which is fixed to the main body case 30. The long hole 222b1 of the front plate 222 engages with a sheet metal member (not shown) which is fixed to the main body case 30. In this manner, the case 220 is fixed to the main body case 30.

[0017] A plurality of openings 2a (second openings) are provided in the first mounting surface 221a of the top plate 221 along the front-rear direction FB (longitudinal direction of the top plate 221). The openings 2a are through holes having a substantially elongated rectangular shape with the left-right direction as the longitudinal direction. In this embodiment, six openings 2a are provided. Between the openings 2a, three openings 2b are provided, each having two smaller rectangular holes arranged in the left-right direction LR, and one elongated rectangular opening 2c smaller than the opening 2a. The arrangement of the openings 2a, 2b, and 2c of the case 220 corresponds to the light-transmitting portions 11a, 11b, and 11c of the panel 210. Therefore, the openings 2a, 2b, and 2c are arranged in the following order from the front side F: openings 2a, 2a, 2b, 2a, 2b, 2a, 2c, 2a, 2b, and 2a.

[0018] As shown in FIG. 4, on the surface opposite to the first mounting surface 221a of the upper plate 221 (i.e., the lower surface 221b of the upper plate 221), a total of four bosses 226 are arranged in a substantially rectangular shape that is long in the front-rear direction FB, two on each of the front side F and rear side B of the upper plate 221. The bosses 226 are provided with female threads (fixing members). Note that the bosses 226 are threaded on the inside by fastening a tapping screw, which is a fastening member, while threading the inside of the bosses 226. Positioning pins 227 are provided in the vicinity between the two bosses 226 on the front side F and between the two bosses 226 on the rear side B. The lower surface 221b near the base end of the left side plate 223 is provided with circular recesses 228 on the front side F and rear side B, respectively. The lower surface 221b near the base end of the right side plate 224 is provided with rectangular recesses 229 on the front side F and rear side B, respectively, that are long in the front-rear direction FB. A number of ribs 22A are provided on the right R edge of the lower surface 221b, which connects to the right side plate 224. Nine ribs 22A are provided between the two long rectangular recesses 229, one in front and one in back. Two long protrusions 22C are provided on the inner surface of the right side plate 224 corresponding to the protruding plate 224b1 in the up-down direction UL. The protrusions 22C reinforce the protruding plate 224b1 and suppress deformation.

[0019] 3, the light diffusion sheet 230 is provided in the form of a thin sheet having a generally rectangular shape that is long in the front-rear direction FB, and has the function of diffusing light. Circular holes 238 are provided at the front and rear of the left side of the light diffusion sheet 230, corresponding to the circular recess 228 of the case 220. In addition, a locking recess 234 cut out in a slit shape is provided on the right side R near the front end of the light diffusion sheet 230. A notched recess 235 is provided on the rear side B of the locking recess 234.

[0020] As shown in FIG. 3 and FIG. 5, the touch detection substrate 240 is a substrate having a substantially rectangular shape that is long in the front-rear direction FB, and is made of a material that does not transmit light. The touch detection substrate 240 is provided with a plurality of openings 4a (first openings) that penetrate the substrate in a substantially rectangular shape that is long in the left-right direction LR. The openings 4a are provided along the front-rear direction FB, and six openings 4a are provided in this embodiment. Between the openings 4a, three openings 4b are provided, each of which has two smaller rectangular holes arranged in the left-right direction LR, and one opening 4c that is a rectangular shape smaller than the opening 4a. The arrangement of the openings 4a, 4b, and 4c of the touch detection substrate 240 corresponds to the light-transmitting portions 11a, 11b, and 11c of the panel 210 and the openings 2a, 2b, and 2c of the case 220. Therefore, the openings 4a, 4b, and 4c are arranged in the following order from the front side F: openings 4a, 4a, 4b, 4a, 4b, 4a, 4c, 4a, 4b, and 4a.

[0021] A touch pattern 243, shown by hatching in FIG. 5, is provided in a substantially rectangular ring shape on the outer periphery of each opening 4a on the upper surface 241 of the touch detection substrate 240. The touch pattern 243 is a capacitance-type touch sensor, and is provided on the outer periphery of each opening 4a by printing or the like. The touch pattern 243 can detect a change in capacitance inside the substantially rectangular ring shape. That is, the touch pattern 243 detects a change in capacitance in the opening region of the opening 4a (the region where the opening 4a is open).

[0022] A circular through hole 248a is provided on a front side F of the left end of the touch detection substrate 240, and a long hole 248b that is long in the front-rear direction FB is provided on a rear side B of the left end of the touch detection substrate 240. The hole 248a and the long hole 248b correspond to the circular recess 228 of the case 220 and the hole 238 of the light diffusion sheet 230.

[0023] 3 and 6, the reflector 250 is provided in a generally rectangular shape that is long in the front-rear direction FB. The reflector 250 has a reflector body 251 in the shape of a generally rectangular plate. The front and rear ends of the reflector body 251 bulge in the left-right direction LR and have four legs 256 formed in a crank shape facing downward. Each leg 256 is provided with a screw hole 256a for inserting a screw member 25b (fastening member). The lower surface of the reflector body 251 is formed as a second mounting surface 253.

[0024] The reflector body 251 is provided with a plurality of light reflecting areas 5a, 5b, and 5c. The light reflecting area 5a is a substantially elongated rectangular shape that is long in the left-right direction LR, and is a hole provided in a quadrangular pyramid shape that expands toward the upper surface 252 of the reflector body 251. The periphery 5a1 where the light reflecting area 5a opens on the second mounting surface 253 side of the reflector body 251 is a vertical wall (see Fig. 8(a) and Fig. 8(b)). The light reflecting area 5b is a substantially elongated rectangular shape that is slightly long in the front-rear direction FB, and two quadrangular pyramid-shaped holes are provided side by side in the left-right direction LR so as to expand toward the upper surface 252 of the reflector body 251. The light reflecting area 5c is a substantially elongated rectangular shape that is slightly smaller than the light reflecting area 5a, and is a hole provided in a quadrangular pyramid shape that expands toward the upper surface 252 of the reflector body 251.

[0025] Six light reflecting areas 5a are provided in the front-rear direction FB, the light reflecting area 5b is provided between three light reflecting areas 5a, and the light reflecting area 5c is provided between one light reflecting area 5a. The arrangement of the light reflecting areas 5a, 5b, and 5c corresponds to the light transmitting parts 11a, 11b, and 11c of the panel 210, the openings 4a, 4b, and 4c of the touch detection substrate 240, and the openings 2a, 2b, and 2c of the case 220. Therefore, the light reflecting areas 5a, 5b, and 5c are arranged in the following order from the front side F: light reflecting areas 5a, 5a, 5b, 5a, 5b, 5a, 5c, 5a, 5b, and 5a.

[0026] Positioning pins 258 are provided on the front and rear of the left side L of the portion of the upper surface 252 of the reflector body 251 that bulges out to the left and right at the front and rear end parts. Hook-shaped restricting portions 259 are provided on the front and rear of the right side R of the upper surface 252 of the reflector body 251 that bulges out to the left and right at the front and rear end parts. A locking protrusion 254 is provided in front of the restricting portion 259 on the front side F. A protruding plate portion 25A that protrudes like a tongue to the front side F is provided approximately at the center of the front end of the reflector body 251 in the left-right direction LR. A notched recess 257a is provided in the protruding plate portion 25A. A circular through hole 257b is provided approximately at the center of the rear end of the reflector body 251 in the left-right direction LR.

[0027] Positioning pins 25D protruding toward the lower side Lo are provided on the front and rear sides on the right side R of the second mounting surface 253. The positioning pins 25D correspond to the front and rear holes 248a and the long hole 248b of the touch detection board 240, the hole 238 of the light diffusion sheet 230, and the recess 228 of the case 220. In addition, a rectangular hole 254a that is long in the left-right direction LR and a recess 254b at the approximately center left edge in the front-rear direction FB are provided on the rear end of the reflector main body 251. The holes 254a and the recess 254b are provided to avoid interference with the input device 200 and electronic components provided on other boards.

[0028] The reflector 250 is integrally formed from a resin material. In this embodiment, the reflector 250 is formed from a white resin material so that the light from the light emitting portions 6s of the light emitting regions 6a, 6b, and 6c is easily reflected in the light reflecting regions 5a, 5b, and 5c.

[0029] As shown in FIG. 3, the control board 260 is a board having a substantially rectangular shape that is long in the front-rear direction FB, and is made of a material that does not transmit light. The control board 260 is provided with a plurality of light-emitting areas 6a, 6b, and 6c each having a plurality of light-emitting units 6s. In this embodiment, the light-emitting units 6s are LEDs. The light-emitting area 6a has three LEDs arranged in the left-right direction LR, except for the second light-emitting area 6a1 from the front. The second light-emitting area 6a1 has five LEDs arranged in the left-right direction LR. The light-emitting area 6b has two LEDs arranged in the left-right direction LR.

[0030] The arrangement of the light-emitting regions 6a, 6b, and 6c corresponds to the light-transmitting portions 11a, 11b, and 11c of the panel 210, the light-reflecting regions 5a, 5b, and 5c, the openings 4a, 4b, and 4c of the touch detection substrate 240, and the openings 2a, 2b, and 2c of the case 220. Therefore, the light-emitting regions 6a, 6b, and 6c are arranged in the order of the light-emitting regions 6a, 6a1 (6a), 6b, 6a, 6b, 6a, 6c, 6a, 6b, and 6a, in order from the front side F. The widths (lengths in the left-right direction LR) in which the LEDs at the left and right ends of the light-emitting regions 6a, 6b, and 6c are arranged are approximately the same. Therefore, the light-emitting region 6a1 in which five LEDs are arranged has the narrowest interval between adjacent LEDs, and the light-emitting region 6b in which two LEDs are arranged has the widest interval between adjacent LEDs.

[0031] A long hole 26D1 that is long in the front-rear direction FB is provided on the front side F of the right side R of the control board 260, and a circular hole 26D2 that passes through is provided on the rear side B. The long hole 26D1 and the hole 26D2 that pass through correspond to the front and rear positioning pins 25D of the second mounting surface 253 of the reflector 250. The control board 260 is also provided with an IC chip (not shown) that controls the lighting of the LEDs in the light-emitting areas 6a, 6b, and 6c.

[0032] The panel 210 is attached to a first mounting surface 221a of the case 220. The edges of the front, rear, and right side R of the panel 210 are positioned on the first mounting surface 221a in close proximity to or in contact with a step portion 221c of the case 220. The panel 210 and the first mounting surface 221a can be attached using an adhesive including double-sided tape.

[0033] The touch detection board 240 is sandwiched between a lower surface 221b of the upper plate 221, which is the opposite side to the first mounting surface 221a of the case 220, and an upper surface 252 of the reflector body 251, which is the opposite side to the second mounting surface 253 of the reflector 250. Specifically, it is attached as follows.

[0034] The right edge of the touch detection board 240 engages with a restricting portion 259 of the reflector body 251, so that the vertical movement of the touch detection board 240 is restricted relative to the reflector 250. At the same time, the front and rear positioning pins 258 of the reflector 250 are inserted into the front and rear holes 248a and the long holes 248b of the touch detection board 240, respectively. In this manner, the touch detection board 240 is positioned relative to the reflector 250. The long holes 248b absorb dimensional errors between the positioning pins 258.

[0035] The light diffusion sheet 230 is provided between the lower surface 221b of the case 220 and the touch detection board 240. The positioning pin 258 of the reflector 250 is inserted into the hole 238 of the light diffusion sheet 230. Since the light diffusion sheet 230 does not need to be positioned with high accuracy, the positioning pin 258 is loosely fitted to a degree that avoids interference with the hole 238. In addition, the locking recess 234 of the light diffusion sheet 230 is locked to the locking protrusion 254 of the reflector 250, and the movement of the light diffusion sheet 230 is restricted with respect to the reflector 250 and the touch detection board 240. The recess 235 of the light diffusion sheet 230 prevents the light diffusion sheet 230 from interfering with the restricting portion 259 on the front side F of the reflector 250. The light diffusion sheet 230 may be omitted depending on the diffusibility of the light emitted from the light emitting areas 6a, 6b, and 6c.

[0036] The control board 260 is attached to the second attachment surface 253 of the reflector 250. At this time, the positioning pin 25D on the front side F of the reflector 250 is inserted into the long hole 26D1 on the front side F of the control board 260, and the positioning pin 25D on the rear side B of the reflector 250 is inserted into the hole 26D2 on the rear side B of the control board 260. In this manner, the control board 260 is positioned relative to the reflector 250. The control board 260 and the reflector 250 can be fixed together using an adhesive including double-sided tape.

[0037] 7, the reflector 250 is fixed to the case 220 by screwing a screw member 25b (fastening member) into the boss 226 through a screw hole 256a in a leg portion 256 of the reflector 250. As shown in FIGS. 3, 4 and 6, when the reflector 250 is fixed to the case 220, a notched recess 257a at the front end of the reflector 250 engages with a positioning pin 227 on the front side F of the case 220, and the positioning pin 227 on the rear side B of the case 220 is inserted into a hole 257b of the reflector 250, so that the reflector 250 is positioned with respect to the case 220.

[0038] Incidentally, the recess 228 of the case 220 prevents interference between the positioning pin 258 of the reflector 250 and the top plate 221 of the case 220. Similarly, the rectangular recess 229 of the case 220 prevents interference between the restricting portion 259 of the reflector 250 and the top plate 221 of the case 220. Furthermore, the multiple ribs 22A of the case 220 are in close proximity to or in contact with the right edge face of the reflector main body 251, and provide rigidity to the case 220. As a result, the multiple ribs 22A provide a sense of rigidity when the user operates the touch switch.

[0039] When the input device 200 is assembled in this manner, the panel 210, the upper plate 221 of the case 220, the touch detection board 240, the reflector 250, and the control board 260 are laminated as shown in FIG. 8(a) and FIG. 8(b). Here, the light emitting unit 6s, which is an LED in the light emitting area 6a, is disposed within the area of ​​the opening 4a of the touch detection board 240 (within the range where the opening 4a is opened as viewed vertically above the touch surface 211). Also, the light emitting unit 6s of the light emitting area 6a is disposed corresponding to the light reflection area 5a of the reflector 250. In other words, the light emitting unit 6s of the light emitting area 6a is disposed within the area where the light reflection area 5a is opened on the second attachment surface 253, which is the lower surface of the reflector main body 251. And the opening 2a of the case 220 (upper plate 221) is disposed within the area of ​​the opening 4a of the touch detection board 240. In other words, the opening 4a of the touch detection substrate 240 is provided larger than the opening 2a of the case 220, and the case 220 (upper plate 221) is disposed directly above the touch pattern 243.

[0040] In the input device 200 thus configured, even if the touch pattern 243 of the touch detection board 240 should fail, the touch detection board 240 can be easily removed by removing the reflector 250 fixed to the case 220 by the screw members 25b (fastening members). That is, the case and the reflector are detachably fixed by the screw members 25b (fastening members). In addition, since there is no air layer directly above the touch pattern 243 and the lower surface 221b of the upper plate 221 of the case 220 is in close proximity to or in contact with the touch pattern 243, touch detection by the touch pattern 243 can be performed satisfactorily.

[0041] Here, as described above, the panel 210 has a bottom surface painted black, but the areas other than the areas corresponding to the light emitting areas 6a, 6b, 6c and the openings 4a, 4b, 4c, 2a, 2b, 2c are painted black so that the light from the light emitting portion 6s of the light emitting areas 6a, 6b, 6c can be seen. The areas of the panel 210 that are not painted black are made into light transmitting areas 11a, 11b, 11c that transmit light corresponding to the light emitting areas 6a, 6b, 6c and the openings 4a, 4b, 4c, 2a, 2b, 2c. The light emitted by the light emitting portion 6s is released to the outside through the openings 4a, 4b, 4c, openings 2a, 2b, 2c, and further through the light transmitting areas 11a, 11b, 11c.

[0042] More specifically, the light-transmitting portions 11a, 11b, and 11c are provided by printing or the like so that characters, symbols, etc. indicating the contents of operations, etc., to be performed by touch operation can be recognized by the transmitted light. Specifically, the characters, etc. are printed in a dark color so that the periphery of the characters, etc. is slightly shaded, and the characters, etc. are provided transparently. Here, as shown in FIG. 8(b), the range of the light-transmitting portion 11a in which the characters are written is set as the display range T. The center CT of the display range T in the left-right direction LR is set to the right of the center CH of the openings 2a, 4a and the light reflecting area 5a in the left-right direction LR. In other words, the center CT is shifted from the center CH.

[0043] The input device 200 is disposed in the left key sleeve 38L on the left side L. Therefore, when viewing the input device 200 from a player located approximately at the center in the left-right direction LR of the keyboard 20, as shown by the line of sight E, the display range T will be viewed from the upper right. If the center CT of the display range T is aligned with the center CH of the openings 2a, 4a and the light reflection region 5a, the left end T3 of the display range T will be close to the edge on the left side L of the opening 2a. Then, as shown by the line of sight E, since the vicinity of the left end T3 of the display range T is located further to the left side L than the edge on the left side L of the opening 2a when viewed from the player, the light from the light emitting region 6a does not transmit, and the characters near the left end among the characters described in the display range T may appear missing. Therefore, the center CT of the display range T is disposed on the right side R of the center CH of the openings 2a, 4a and the light reflection region 5a. Note that since the line of sight E does not overlap with the right side R of the opening 2a for the characters at the right end of the display range T, they are visible even when approaching the edge of the opening 2a. That is, as shown in the enclosed view of FIG. 2, the region TL on the left side L of the display range T and the region TR on the right side R of the display range T are set such that TR < TL.

[0044] According to the above-described embodiment of the present invention, the input device 200 includes a touch detection substrate 240 having an opening 4a as a first opening, with a touch pattern 243 provided on the outer periphery of the opening 4a, a control substrate 260 having a light emitting portion 6s, a reflector 250 provided between the touch detection substrate 240 and the control substrate 260 and having a light reflection region 5a disposed corresponding to the light emitting portion 6s, a panel 210 including a touch surface 211, and a case 220 having an opening 2a as a second opening to which the panel 210 is attached. The light emitted by the light emitting portion 6s is emitted to the outside through the openings 4a and 2a, and the case 220 and the reflector 250 are detachably fixed by a screw member 25b which is a fastening member. That is, the opening area of the second opening (opening 2a) is smaller than the opening area of the first opening (opening 4a).

[0045] As a result, the touch detection board 240 is sandwiched between the lower surface 221b of the upper plate 221 of the case 220 and the upper surface 252 of the reflector 250, so that even if the touch pattern breaks down, only the touch detection board 240 can be easily replaced by simply removing the reflector 250 from the case 220. In addition, since the lower surface 221b of the upper plate 221 of the case 220 is disposed directly above the touch pattern, an air layer is eliminated, enabling good touch detection.

[0046] In addition, a light diffusion sheet 230 is provided between the case 220 and the touch detection substrate 240. As a result, even if a semiconductor light emitting element such as an LED is used for the light emitting unit 6s, the light transmitting unit 11a of the panel 210 can be irradiated with diffused light, and the light transmitting unit 11a can be made to shine uniformly.

[0047] Furthermore, the reflector 250 and the touch detection board 240 are positioned by a positioning pin 258. Thus, once the position of the reflector 250 relative to the case 220 is determined, the position of the touch pattern 243 relative to the panel 210 can be easily determined.

[0048] In addition, the touch surface 211 is provided with a display area T for characters, symbols, etc., to be placed within the area of ​​the opening 2a. This allows easy setting work, and improves the design by providing a luminous operation touch panel.

[0049] The light emitted by the light-emitting unit is emitted to the outside through the first opening and the second opening. The center CT of the display range T is offset from the center CH of the openings 2a, etc. in the left-right direction LR. This allows the characters, etc. written in the display range T to be clearly seen without missing edges even when the input device 200 is viewed from an oblique direction.

[0050] Moreover, the electronic keyboard instrument 1 as an electronic device is provided with an input device 200 on the sleeve of the key. This makes it possible to provide an electronic keyboard instrument 1 (electronic musical instrument) that is highly repairable and includes an input device 200 that allows good touch detection. The electronic device also includes the input device of the present disclosure, a control unit, and an output device that outputs in response to an input from the input device.

[0051] Although the embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the above embodiment, but is defined based on the claims. Furthermore, the technical scope of the present invention also includes equivalent ranges that are made by adding modifications that are not related to the essence of the present invention from the claims. [Explanation of symbols]

[0052] 1. Electronic keyboard instruments 2a,2b,2c opening 4a,4b,4c opening 5a,5b,5c Light reflective area 5a1 Periphery 6a, 6a1, 6b, 6c Light-emitting area 6s Light emitting unit 10 Main unit 11a,11b,11c Transparent part 20 keys 22 keys 22A Rib 22B Black Key 22C protrusion 22W white key 25A Protruding plate 25D Positioning pin 25b Screw member 26D1 Long hole 26D2 Hole 26D2 Long hole 30 Main body case 32 Front Panel 32a Power Button 34 Left side plate 35 Right side plate 36B Rear top plate 36F Front top plate 36F1 Music stand 38L Left key sleeve 38R Right key sleeve 100 Legs 110 side plate member 120 pedal frame 130 Pedal device 200 Input device 210 Panel 211 Touch surface 220 Case 221 Top plate 221a 1st mounting surface 221b Bottom surface 221c Step 221c1 Protrusion 222 Front panel 222a Upper part 222b Lower part 222b1 Long hole 223 Left side plate 224 Right side plate 224a Upper part 224b Lower part 224b1 Projecting plate 225 Screw hole 226 Boss 227 Positioning pin 228 Recess 229 Rectangular recess 230 Light diffusion sheet 234 Locking recess 235 Recess 238 Hole 240 Touch detection board 241 Top surface 243 Touch Pattern 248a Hole 248b Long hole 250 Reflector 251 Reflector body 252 Top surface 253 Second mounting surface 254 Locking projection 254a Hole 254b Recess 256 Leg 256a hole 257a Notch recess 257b Hole 258 Positioning pin 259 Regulating part 260 Control Board

Claims

1. a touch detection substrate having a first opening and a touch pattern provided on an outer periphery of the first opening; A control board having a light emitting portion; a reflector provided between the touch detection substrate and the control substrate, the reflector including a light reflection region disposed in correspondence with the light emitting portion; a panel including a touch surface; a case having a second opening and to which the panel is attached; Equipped with The light emitted by the light emitting portion is emitted to the outside through the first opening and the second opening, The case and the reflector are detachably fixed by a fastening member. Input device.

2. The opening area of ​​the second opening is smaller than the opening area of ​​the first opening. The input device according to claim 1 .

3. a light diffusion sheet is provided between the case and the touch detection substrate; The input device according to claim 1 .

4. The input device according to claim 1 , wherein the touch detection substrate is positioned by a positioning pin provided on the reflector.

5. The touch surface includes a display range for characters or symbols within the area of ​​the second opening. The input device according to claim 1 .

6. The center of the display range is shifted from the center of the second opening.

6. The input device according to claim 5.

7. An input device according to any one of claims 1 to 6, An output device; Electronic devices, including

8. An input device according to any one of claims 1 to 6, The keyboard and The input device is provided at a position of a clapper adjacent to the keyboard. Electronic keyboard instrument.

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