WO2010024137A1 - Input device - Google Patents

Input device Download PDF

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Publication number
WO2010024137A1
WO2010024137A1 PCT/JP2009/064333 JP2009064333W WO2010024137A1 WO 2010024137 A1 WO2010024137 A1 WO 2010024137A1 JP 2009064333 W JP2009064333 W JP 2009064333W WO 2010024137 A1 WO2010024137 A1 WO 2010024137A1
Authority
WO
WIPO (PCT)
Prior art keywords
dome
input device
light
shielding wall
light shielding
Prior art date
Application number
PCT/JP2009/064333
Other languages
French (fr)
Japanese (ja)
Inventor
和貴 伊勢
剛 羽山
尚登 下村
啓志 小原
正巳 相原
直樹 伊藤
英之 石田
Original Assignee
アルプス電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to CN2009801331244A priority Critical patent/CN102132369B/en
Priority to JP2010526654A priority patent/JP5211168B2/en
Priority to KR1020117004446A priority patent/KR101142389B1/en
Publication of WO2010024137A1 publication Critical patent/WO2010024137A1/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02Details
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2215/00Tactile feedback
    • H01H2215/004Collapsible dome or bubble
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/036Light emitting elements
    • H01H2219/044Edge lighting of layer
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00Legends
    • H01H2219/054Optical elements
    • H01H2219/064Optical isolation of switch sites

Definitions

  • the present invention relates to an input device having a dome-shaped switch and an illumination function, and more particularly to an input device in which the surface of the dome-shaped switch is separated into a plurality of illumination areas.
  • a key top 1 made of a translucent material that protrudes from the surface of a casing of a mobile phone and is pressed by a user, a contact 3 formed on a printed circuit board 2, and a contact 3 provided above the contact 3 is provided in response to the press.
  • An elastic metal dome 4 that electrically connects the contacts, a dome fixing sheet 5 made of an elastic translucent material that fixes the metal dome 4 so as to cover it, and a key backlight 6 provided in the dome fixing sheet 5
  • a key button having a rubber sheet 7 made of a translucent material provided with a protrusion (presser) that is provided on the back side of the key top 1 and that presses the central portion of the dome fixing sheet 5 is described.
  • the key backlight 6 includes a key backlight 6-1 that illuminates the numeric display area of the light shielding unit 8, a key backlight 6-2 that illuminates the kana display area, and a key backlight 6-3 that illuminates the alphabet display area. For example, when the number input mode is set, only the key backlight 6-1 that illuminates the number display area is lit, so that only the numbers necessary for the number input mode are displayed brightly. It is to let you. JP 2006-60334 A
  • the key backlight 6 is configured to illuminate the back surface of the key top 6.
  • the light of the key backlight 6-1 that illuminates the numeric display area is received by the adjacent light shielding portions 8.
  • the kana display area and the alphabet display area may leak through the light, and there is a problem that the kana display area and the alphabet display area are lit at the same time due to the leakage light at this time, although not as much as the numeric display area.
  • the present invention is intended to solve the above-described conventional problems, and an object thereof is to provide an input device that optically separates the illumination areas to be classified and eliminates the influence of mutual leakage light.
  • the present invention includes a dome-type contact switch including a dome having a conductive portion that is deformable according to a pressing force and is capable of contacting an electrode formed on a substrate, a fixing sheet that fixes the dome on the substrate,
  • a dome-type contact switch including a dome having a conductive portion that is deformable according to a pressing force and is capable of contacting an electrode formed on a substrate, a fixing sheet that fixes the dome on the substrate,
  • an input device comprising an outer frame formed along the outer edge of the fixed sheet, and a light emitting element placed in the vicinity of the dome,
  • At least one light shielding wall provided on the surface of the fixed sheet while following the shape of the dome is formed, and a region provided on one side of the light shielding wall and a region provided on the other are the surfaces of the dome. It is characterized by being optically separated above.
  • the illumination areas on both sides adjacent to the light shielding wall can be reliably separated, it is possible to prevent one illumination area from being affected by the leakage light of the other illumination area. . For this reason, it is possible to reliably turn on and off the characters provided in each illumination area.
  • the light shielding wall is integrally formed with the outer frame.
  • the above means can be integrally formed by an imprint manufacturing method, can ensure a certain molding accuracy, and can reduce the manufacturing cost.
  • the light shielding wall is formed so as to connect between one outer frame and the other outer frame facing each other on both sides of the dome-shaped switch.
  • the light shielding wall is formed between one outer frame and the center of the dome facing each other at positions on both sides of the dome type switch.
  • the illumination region can be optically separated, and in the latter case, it is possible to provide an illumination region that is optically separated and a common region that is not separated.
  • the present invention it is possible to form the light shielding wall partially rather than over the entire area of the dome. In this case, a reliable separation effect is exhibited on both sides of the light shielding wall, and the light shielding is performed. In a region without a wall, light from a plurality of light emitting elements can be actively leaked to obtain a color mixing effect.
  • the light emitting elements are respectively provided in regions optically separated with the light shielding wall interposed therebetween.
  • the optically separated region is filled with a transparent or translucent resin to form a light guide.
  • the light emitted from the light emitting element can be efficiently delivered to each illumination region.
  • the light emitting element that emits a different color for each region may be provided.
  • the light shielding wall is integrally formed with a protrusion facing the dome.
  • the present invention it is possible to optically reliably separate the illumination regions arranged adjacent to both sides of the light shielding wall. For this reason, it is possible to prevent one illumination area from being affected by the leakage light of the other illumination area, and it is possible to reliably turn on and off the characters provided in each illumination area.
  • FIG. 1 is a perspective view showing an input device as a first embodiment of the present invention
  • FIG. 2 is a sectional view taken along line II-II in FIG. 1
  • FIG. 3 is a sectional view taken along line III-III in FIG. 4 is a plan view of the key top showing an example of characters and the like displayed on the key top.
  • the input device 1 described below is used, for example, as a key input unit on an operation surface of a mobile phone, a remote control device, a portable audio player or a video player, and an operation surface of an electronic device such as a mobile PC. That is, FIGS. 1 to 3 show a part of the key input unit.
  • the input device 1 is provided with a printed circuit board 2 in the lowest layer in the Z2 direction and a key top 9 in the uppermost layer on the Z1 side.
  • a ring-shaped electrode 3b is provided on the surface of the printed circuit board 2, and a counter electrode 3a is formed in the center thereof in a state insulated from the ring-shaped electrode 3b.
  • electrode pads 3c and 3d are provided on the printed circuit board 2 and on the X1 side and the X2 side of the counter electrode 3a and the ring electrode 3b, respectively.
  • the light emitting elements 4A and 4B are respectively connected to electrodes provided on the lower surface. Through holes 2a, 2b, 2c, and 2d connected to the counter electrode 3a, the ring-shaped electrode 3b, and the electrode pads 3c and 3d are formed in the printed board 2.
  • the through holes 2a, 2b, 2c, 2d are filled with a conductive material, and the counter electrode 3a, the ring-shaped electrode 3b, and the electrode pads 3c, 3d have a plurality of conductive paths wired on the back side of the printed circuit board 2 ( (Not shown) and connected to an external circuit.
  • a dome-shaped switch 5 having a dome 5A is provided on the ring electrode 3b. At least an inner surface of the dome 5A may be provided with a conductive portion, and the conductive portion may be configured such that the dome 5A itself is formed of a metal metal, or a metal is formed on the inner surface (the concave surface) of the resin dome 5A. The structure in which a layer is formed may be sufficient.
  • the dome 5A is curved in a normal state where no pressing force is applied, and the lower end 5b on the outer peripheral side of the dome 5A is in contact with the ring-shaped electrode 3b. In this state, the inner surface (conductive portion) of the dome 5A and the ring-shaped electrode 3b are in a conductive connection state.
  • the dome 5A shown in the present embodiment has cut portions 5c, 5c cut so as to be parallel to the X direction on both sides of the X1 and X2 sides. Yes. Details of the cut portions 5c and 5c will be described later.
  • a fixed sheet 6 made of a flexible resin film having an adhesive layer (not shown) on the lower surface side is attached on the printed circuit board 2.
  • the dome 5 ⁇ / b> A is fixed on the ring-shaped electrode 3 b of the printed circuit board 2 by the fixing sheet 6.
  • opening holes 6 a and 6 b are formed on the X 1 and X 2 sides of the fixed sheet 6.
  • the light emitting elements 4A and 4B are inserted into the opening holes 6a and 6b, and the light emitting portion provided on the upper end side is located above the opening holes 6a and 6b. Since the center of the fixing sheet 6 is fixed to the surface of the dome 5 ⁇ / b> A, the center of the fixing sheet 6 protrudes upward in the Z ⁇ b> 1 direction from the surface of the printed circuit board 2.
  • the outer frame 7 is fixed on the fixed sheet 6.
  • the outer frame 7 is formed of a resin having a light shielding property (or non-transmissive property). Or you may make it have light-shielding property by coating the surface of resin which has a light transmittance, or vapor-depositing a metal film.
  • the outer frame 7 has a pair of long side portions 7a and 7a parallel to the X direction and a pair of short side portions 7b1 and 7b2 parallel to the Y direction. It is fixed so as to surround the surface of the outer edge.
  • a beam-shaped light shielding wall 7c that connects between one long side portion 7a and the other long side portion 7a is integrally formed.
  • a projection (presser) 7d that protrudes in the Z1 direction is integrally formed at the center of the light shielding wall 7c in the Y direction.
  • the light shielding wall 7 c is fixed to the surface of the light shielding wall 7 c while following the shape of the fixed sheet 6.
  • the center portion having the protrusion 7 d swells upward in the drawing from both side portions having the pair of short side portions 7 b 1 and 7 b 2.
  • the central protrusion 7d protrudes most in the Z1 direction shown in the figure.
  • such an outer frame 7 can be integrally formed by an imprint manufacturing method in which a mold is pressed against a resin, so that a certain molding accuracy can be secured and the manufacturing cost can be reduced. it can.
  • a light guide portion 8B is provided in a second illumination region 7B surrounded by a pair of long side portions 7a and 7a, a short side portion 7b2 and a light shielding wall 7c on all sides. It has been.
  • the light guide portion 8B is formed by filling and curing a light curable or thermosetting resin having light permeability.
  • the same light guide unit is also provided in the first illumination region 7A on the X1 side surrounded by the pair of long side portions 7a, 7a, the short side portion 7b1, and the light shielding wall 7c on the four sides. 8A is provided.
  • the light shielding wall 7c optically separates the first illumination area 7A on the X1 side and the second illumination area 7B on the X2 side.
  • the light emitting elements 4A and 4B are embedded in the light guide portions 8A and 8B after the resin is cured.
  • the refractive index of the resin forming the light guide portions 8A and 8B is larger than that of air. For this reason, the light guide parts 8A and 8B function as a core, and the air in contact with the light guide parts 8A and 8B functions as a cladding. Therefore, the light emitted from the light emitting elements 4A and 4B can be guided in the light guide portions 8A and 8B.
  • a necessary light guide performance can be obtained with respect to the distance between the portions that are desired to emit light from the light source.
  • a light shielding wall 7c having a light shielding property is provided between the light guide 8A and the light guide 8B. Therefore, light does not leak from one of the light guide 8A and the light guide 8B to the other. Further, since the periphery of the light guide portions 8A and 8B is also surrounded by the outer frame 7 having a light shielding property, the light emitted from the light emitting elements 4A and 4B does not leak to the outside side beyond the outer frame 7. .
  • the light is emitted.
  • the light can be emitted toward the upper key input unit, and the key top 9 provided on the key input unit can be illuminated from the back. Thereby, the surface of the key top 9 can be displayed brightly.
  • the number “2” is closer to the X2 side than the center line OO and the X1 side is closer to the X1 side than the center line OO.
  • Each of the three alphabets “ABC” is displayed by printing or the like, and these numbers or characters can be selected and input by operating the key top.
  • the numbers and alphabets are not limited to these.
  • the light emitting element 4A on the X1 side When the light emitting element 4A on the X1 side is turned on, the three letters “ABC” displayed on the X1 side of the key top 9 are illuminated via the light guide part 8A, and when the light emitting element 4B on the X2 side is turned on, the light guiding part. The number “2” displayed on the X2 side of the key top 9 is illuminated via 8B.
  • a light-shielding wall 7c having a light-shielding property is provided between the light guide part 8A and the light guide part 8B so as to be optically separated, and light emitted in one region leaks into the other region. There is nothing.
  • the blinking control of the light emitting elements 4A and 4B is performed by a control unit of an electronic device in which the input device 1 is mounted.
  • the lower end 5b on the outer peripheral side of the dome 5A slides on the ring-shaped electrode 3b in the outer peripheral direction.
  • the dome 5 ⁇ / b> A is deformed, and the inner surface (conductive portion) of the dome 5 ⁇ / b> A contacts the counter electrode 3 a on the printed circuit board 2.
  • the counter electrode 3a and the ring-shaped electrode 3b are conductively connected via the dome 5A, whereby the switch state between the through hole 2a and the through hole 2b can be switched on.
  • the dome 5A is restored to the original state.
  • the inner surface (conductive portion) of the dome 5A is separated from the counter electrode 3a on the printed board 2, the switch state between the through hole 2a and the through hole 2b is switched off.
  • the cut portions 5c and 5c are provided on both sides of the dome 5A, and these are formed in parallel to the long side portions 7a and 7a as a pair forming the outer frame 7.
  • the cut portions 5c and 5c are in a state of floating from the printed board 2. Further, the width dimension (width dimension in the Y direction) of the dome 5A can be reduced by the amount of the cut portions 5c and 5c. For this reason, the distance between the cut portions 5c and 5c and the long side portions 7a and 7a of the outer frame 7 facing them can be secured longer than when the cut portions 5c and 5c are not provided. .
  • the light shielding wall 7c of the outer frame 7 is formed perpendicular to the cut portions 5c, 5c of the dome 5A, and is provided on the surface of the fixed sheet so as to pass through the apex 5a of the dome 5A.
  • the protrusion 7d is formed so as to come to a position directly above the vertex 5a of the dome 5A. For this reason, the pressing force of pressing the key top 9 can be efficiently transmitted to the vertex 5a of the dome 5A, and a stable click operation can be performed in this respect as well.
  • FIG. 5 is a plan view showing an input device according to a second embodiment of the present invention
  • (A) is a plan view showing a key input unit having a plurality of key tops
  • (B) is a key top removed. It is a top view which shows the input device main body of a state.
  • FIG. 5B shows a case where a plurality of input devices 1 are provided on a single printed board, and shows a state in which the key input unit having the uppermost key top is removed.
  • twelve key tops 9 are arranged in a substantially matrix shape in the key input section.
  • alphabetical characters and the like are displayed on the X1 side from the center, and numbers and symbols are displayed on the X2 side by printing or the like.
  • the basic configuration of the input device 1 on the main body side is the same as that of the first embodiment, and a plurality of input devices 1 are formed on a single printed board 2. ing.
  • each input device 1 is different in that it is partially connected and will be described below.
  • the printed circuit board 2 has first illumination areas 7A and second illumination areas 7B extending in the Y direction alternately arranged in the X direction.
  • the adjacent first illumination area 7A on the X1 side and the second illumination area 7B on the X2 side form a set of input portions.
  • three sets of input units are provided.
  • a plurality of dome-shaped switches 5 are arranged at predetermined intervals along the Y direction between the first illumination region 7A and the second illumination region 7B constituting the set of input units.
  • the outer frame 7 having a light-shielding property is formed along the outer edge of the substantially square printed board 2 (actually, on a fixed sheet attached to the surface of the printed board 2).
  • a frame 7 shields light from the inside and outside of the input device 1.
  • a plurality (three in FIG. 5B) of light shielding walls 7c1 are formed between one side on the Y1 side and the other side on the Y2 side.
  • Each light shielding wall 7c1 is formed in a shape that follows the shape of the dome 5A of the printed circuit board 2 and each dome-type switch 5 and passes over each vertex 5a.
  • the light shielding wall 7c1 optically separates the first illumination region 7A and the second illumination region 7B constituting a set of input portions.
  • a light emitting element 4A is provided at the end of the first illumination area 7A on the Y1 side, and a light emitting element 4B is provided at the end of the second illumination area 7B on the Y1 side.
  • the first illuminating area 7A and the second illuminating area 7B are each buried with a light-transmitting resin, whereby light guide portions 8A and 8B are formed, respectively.
  • the light guide 8A of the first illumination area 7A faces the alphabet of each key top 9, and the light guide 8B of the second illumination area 7B faces the number of each key top 9. For this reason, when the light emitting elements 4A, 4A, 4A on the X1 side are turned on, only the light guide portions 8A, 8A, 8A on the first illumination regions 7A, 7A, 7A side can emit light. Therefore, it is possible to illuminate all alphabets displayed on the surface of each key top 9 arranged in a line in the vertical direction (Y direction), and it is possible to prevent the numbers from being illuminated.
  • FIG. 6 is a plan view of an input device according to a third embodiment of the present invention, in which (A) is a plan view showing the surface of the key top, and (B) is an input device main body with the key top removed.
  • FIG. 6 is a plan view of an input device according to a third embodiment of the present invention, in which (A) is a plan view showing the surface of the key top, and (B) is an input device main body with the key top removed.
  • the basic configuration of the input device main body shown in the embodiment shown in FIG. 6 is the same as that in the first embodiment. For this reason, the following description will focus on differences from the first embodiment.
  • the key top 9 shown in this embodiment is provided with three divided first, second and third display areas 9a, 9b and 9c.
  • the kana character “ka” is displayed in the first display area 9a
  • the alphabet "ABC” is displayed in the second display area 9b
  • the number "2" is displayed in the third display area 9c. Is displayed.
  • each character or the like can be formed on the front or back surface of the key top 9 by printing or the like.
  • the key top 9 is formed of a resin or metal that does not have optical transparency
  • the key top 9 is formed by piercing the character in its shape and covering the pierced portion with a transparent or translucent resin. Yes.
  • the main body of the input device 1 is provided with a dome-shaped switch 5 at the center of a substantially square printed board 2. Further, an outer frame 7 formed along the outer edge is formed on the edge of the printed board 2 (actually, on the fixed sheet attached to the surface of the printed board 2). The outer frame 7 shields light from the inside and outside of the input device 1.
  • the outer frame 7 is integrally formed with a light shielding wall 7c extending linearly from one edge of the outer frame 7 (the edge on the Y1 side in FIG. 6) toward the center.
  • the input device 1 is divided into a first illumination region 7A on the X1 side and a second illumination region 7B on the X2 side with a light shielding wall 7c interposed therebetween.
  • a light emitting element 4A is provided in the first illumination area 7A, and a light emitting element 4B is provided in the second illumination area 7B.
  • the first illumination area 7A corresponds to the first display area 9a where the kana character "ka” is displayed
  • the second illumination area 7B is the second display area 9b where the alphabet "ABC” is displayed. It corresponds to.
  • the first illumination region 7A, the second illumination region 7B, and the third illumination region 7C were formed by filling a light curable or thermosetting resin having light permeability and then curing the resin.
  • a light guide is provided.
  • the light emitting element 4A When the light emitting element 4A is turned on, the light passes through the light guide and spreads to the first illumination area 7A and the third illumination area 7C. Therefore, the kana characters “ka” provided in the first display area 9a and The numeral “2” provided in the third display area 9c can be illuminated at the same time. However, since the first illumination region 7A and the second illumination region 7B are optically separated by the light shielding wall 7c, the light of the light emitting element 4A does not reach the adjacent second illumination region 7B. The alphabet “ABC” displayed in the second display area 9b is not illuminated.
  • the light emitting element 4B when the light emitting element 4B is turned on, the light passes through the light guide and spreads to the second illumination region 7B and the third illumination region 7C, and therefore the alphabet “ABC” provided in the second display region 9b. "And the number" 2 "provided in the third display area 9c can be illuminated at the same time. However, since the light of the light emitting element 4B is optically separated by the light shielding wall 7c and does not reach the adjacent first illumination area 7A, the kana character “ka” displayed in the first display area 9a is illuminated. It will never be done.
  • the light emitting element 4A and the light emitting element 4B are turned on simultaneously, the light of the light emitting element 4A is in the first illumination area 7A and the third illumination area 7C, and the light of the light emitting element 4B is in the second illumination area 7B and the second illumination area 7B.
  • 3 illuminating areas 7C spread simultaneously. For this reason, not only the kana character “ka” provided in the first display area 9a and the alphabet “ABC” displayed in the second display area 9b, but also the numbers provided in the third display area 9c. "2" can be illuminated at the same time. That is, all characters displayed on the key top 9 are illuminated.
  • the numeral “2” provided in the third display area 9c can always be illuminated. For this reason, a frequently used character or number is formed on the key top 9 so that the third display area 9c comes, so that a frequently used character or the like is always illuminated. be able to. Thereby, it becomes possible to set it as the electronic device provided with the input device 1 with high operativity.
  • the light emitting element 4A and the light emitting element 4B may have different emission colors. That is, the light emitting element 4A is an LED that emits first light (for example, red), and the light emitting element 4B is an LED that emits second light (for example, green).
  • the kana character “ka” provided in the first display area 9a and the kana number “2” provided in the third display area 9c are changed to the first light (red).
  • the light emitting element 4B is turned on, the alphabet “ABC” provided in the second display area 9b and the number “2” provided in the third display area 9c are changed to the second light (green light). ).
  • the kana character “ka” provided in the first display area 9a is converted into the second display area 9b by the first light (red light).
  • the alphabet “ABC” provided on the second display can be illuminated by the second light (green light), and the number “2” provided in the third display area 9c, which is a common area, It is possible to illuminate with the third light (yellow light) generated by the additive color mixture of the first light (red light) and the second light (green light).
  • the light emitting element 4A and the light emitting element 4B are caused to emit light simultaneously, it is possible to illuminate characters and the like provided in the first, second, and third display areas 9a, 9b, and 9c with different colors, It becomes possible to improve the designability and operability of the input device 1.
  • the dome 5A has been described by showing the configuration in which the cut portions 5c and 5c cut so as to be parallel to the X direction are formed on both sides of the X1 and X2 sides. It is not limited to this.
  • FIG. 7A and 7B are plan views showing other configuration examples of the dome, in which FIG. 7A shows a case where cut portions are formed at four locations, FIG. 7B shows a case where cut portions are formed at three locations, and FIG. And the number of light shielding walls does not match.
  • the cut portions 5c, 5c, 5c, and 5c may be formed at four locations, or the cut portions 5c and 5c at three locations as shown in FIG. 7B.
  • the structure which forms 5c and 5c may be sufficient.
  • a configuration in which the light shielding wall 7c and the cut portion 5c are arranged so as to be perpendicular to each other is preferable.
  • the number of cut portions 5c (four) and the number of light shielding walls 7c (one) may not necessarily match, but at least one or more light shielding walls. 7c is preferably provided.
  • 1 Input device 2 Printed circuit board (board) 3a Counter electrode 3b Ring electrodes 4A and 4B Light emitting element 5 Dome type switch 5A Dome 5c Cut part 6 Fixed sheet 7 Outer frame 7c, 7c1, 7c2 Light shielding wall 7d Protrusion (pushing element) 7A 1st illumination area 7B 2nd illumination area 8A, 8B Light guide part 9 Key top 9a 1st display area 9b 2nd display area 9c 3rd display area

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Abstract

Provided is an input device which can generate an appropriate click feeling even when an illumination region is optically separated so as to exclude affects by mutual leak lights. A first illumination region (7A) is separated from a second illumination region (7B) by a light shielding wall (7c).  Thus, it is possible to exclude affects given by a leak light of one of the illumination regions to the other illumination region.  Moreover, a protrusion (7d) is arranged to press down the apex of a dome (5A) at the center of the light shielding wall (7c).  Accordingly, even if the first illumination region (7A) is optically separated from the second illumination region (7B) by the light shielding wall (7c), it is possible to generate an appropriate click feeling.

Description

入力装置Input device
 本発明は、ドーム型スイッチと照光機能を備えた入力装置に係わり、特にドーム型スイッチの表面が複数の照明領域に分離されている入力装置に関する。 The present invention relates to an input device having a dome-shaped switch and an illumination function, and more particularly to an input device in which the surface of the dome-shaped switch is separated into a plurality of illumination areas.
 特許文献1には、携帯電話機の筐体表面から突出しユーザにより押下される透光材質のキートップ1と、プリント基板2に形成される接点3と、接点3の上方に設けられ押下に応じて接点間を電気的に接続する弾力性の金属ドーム4と、金属ドーム4を覆うように固定する弾力性の透光材質のドーム固定シート5と、ドーム固定シート5内に設けられるキーバックライト6と、キートップ1の裏面側に設けられドーム固定シート5の中央部分を押下する突起(押し子)を形成された透光材質のラバーシート7とを有するキーボタンが記載されている。 In Patent Document 1, a key top 1 made of a translucent material that protrudes from the surface of a casing of a mobile phone and is pressed by a user, a contact 3 formed on a printed circuit board 2, and a contact 3 provided above the contact 3 is provided in response to the press. An elastic metal dome 4 that electrically connects the contacts, a dome fixing sheet 5 made of an elastic translucent material that fixes the metal dome 4 so as to cover it, and a key backlight 6 provided in the dome fixing sheet 5 In addition, a key button having a rubber sheet 7 made of a translucent material provided with a protrusion (presser) that is provided on the back side of the key top 1 and that presses the central portion of the dome fixing sheet 5 is described.
 キーバックライト6は、遮光部8の数字表示領域を照光するキーバックライト6-1と、かな表示領域を照光するキーバックライト6-2と、アルファベット表示領域を照光するキーバックライト6-3とに分割して配置されており、例えば、数字入力モードが設定された場合、数字表示領域を照光するキーバックライト6-1のみ点灯することにより、数字入力モードで必要な数字だけを明るく表示させるというものである。
特開2006-60334号公報
The key backlight 6 includes a key backlight 6-1 that illuminates the numeric display area of the light shielding unit 8, a key backlight 6-2 that illuminates the kana display area, and a key backlight 6-3 that illuminates the alphabet display area. For example, when the number input mode is set, only the key backlight 6-1 that illuminates the number display area is lit, so that only the numbers necessary for the number input mode are displayed brightly. It is to let you.
JP 2006-60334 A
 しかし、特許文献1に示す構成では、キーバックライト6はキートップ6の裏面を照光する構成であるところ、例えば数字表示領域を照光するキーバックライト6-1の光が、隣接する遮光部8を介してかな表示領域やアルファベット表示領域に洩れることがあり、このときの漏れ光によって数字表示領域ほどではないが、かな表示領域やアルファベット表示領域が同時に点灯してしまうという問題がある。 However, in the configuration shown in Patent Document 1, the key backlight 6 is configured to illuminate the back surface of the key top 6. For example, the light of the key backlight 6-1 that illuminates the numeric display area is received by the adjacent light shielding portions 8. The kana display area and the alphabet display area may leak through the light, and there is a problem that the kana display area and the alphabet display area are lit at the same time due to the leakage light at this time, although not as much as the numeric display area.
 本発明は上記従来の課題を解決するためのものであり、区分けしたい照光領域を光学的に確実に分離し、互いの洩れ光による影響を排除した入力装置を提供することを目的としている。 The present invention is intended to solve the above-described conventional problems, and an object thereof is to provide an input device that optically separates the illumination areas to be classified and eliminates the influence of mutual leakage light.
 本発明は、押圧力に応じて変形し基板上に形成された電極に接触可能な導電部を有するドームを備えたドーム型接点スイッチと、前記ドームを前記基板上に固定する固定シートと、前記固定シートの外縁に沿って形成された外枠と、前記ドームの近傍に置かれた発光素子と、を備えた入力装置において、
 前記ドームの形状に倣いながら前記固定シートの表面に設けられる少なくとも1以上の遮光壁が形成されており、前記遮光壁の一方に設けられた領域と他方に設けられた領域が、前記ドームの面上において光学的に分離されていることを特徴とするものである。
The present invention includes a dome-type contact switch including a dome having a conductive portion that is deformable according to a pressing force and is capable of contacting an electrode formed on a substrate, a fixing sheet that fixes the dome on the substrate, In an input device comprising an outer frame formed along the outer edge of the fixed sheet, and a light emitting element placed in the vicinity of the dome,
At least one light shielding wall provided on the surface of the fixed sheet while following the shape of the dome is formed, and a region provided on one side of the light shielding wall and a region provided on the other are the surfaces of the dome. It is characterized by being optically separated above.
 本発明の入力装置では、遮光壁に隣接する両側の照光領域を確実に分離することができるため、一方の照光領域が、他方の照光領域の洩れ光による影響を受けることを防止することができる。このため、各照光領域内に設けられた文字の点灯および消灯を確実に行うことができる。 In the input device according to the present invention, since the illumination areas on both sides adjacent to the light shielding wall can be reliably separated, it is possible to prevent one illumination area from being affected by the leakage light of the other illumination area. . For this reason, it is possible to reliably turn on and off the characters provided in each illumination area.
 上記において、前記遮光壁が前記外枠と一体形成されているものが好ましい。
 上記手段では、インプリント製法により一体形成することが可能であり、一定の成形精度を確保することができるとともに製造コストを低減することができる。
In the above, it is preferable that the light shielding wall is integrally formed with the outer frame.
The above means can be integrally formed by an imprint manufacturing method, can ensure a certain molding accuracy, and can reduce the manufacturing cost.
 例えば、前記遮光壁が、前記ドーム型スイッチを挟んでその両側の位置にて対向する一方の外枠と他方の外枠との間を連結するように形成されているものである。 For example, the light shielding wall is formed so as to connect between one outer frame and the other outer frame facing each other on both sides of the dome-shaped switch.
 あるいは、前記遮光壁が、前記ドーム型スイッチを挟んだその両側の位置にて対向する一方の外枠と前記ドームの中心部との間に形成されているものである。 Alternatively, the light shielding wall is formed between one outer frame and the center of the dome facing each other at positions on both sides of the dome type switch.
 前者においては照光領域を光学的に分離することができ、後者においては、光学的に分離された照光領域と、分離されない共通領域とを備えることが可能となる。 In the former case, the illumination region can be optically separated, and in the latter case, it is possible to provide an illumination region that is optically separated and a common region that is not separated.
 すなわち、本発明においては、遮光壁をドーム上の全域に渡ってではなく、部分的に形成することも可能であり、この場合、遮光壁の両側では確実な分離の効果を発現すると共に、遮光壁のない領域では、複数の発光素子からの光を積極的に漏れこませ、混色の効果を得ることができる。 That is, in the present invention, it is possible to form the light shielding wall partially rather than over the entire area of the dome. In this case, a reliable separation effect is exhibited on both sides of the light shielding wall, and the light shielding is performed. In a region without a wall, light from a plurality of light emitting elements can be actively leaked to obtain a color mixing effect.
 前記発光素子が、前記遮光壁を挟んで光学的に分離された領域内にそれぞれ設けられているものである。 The light emitting elements are respectively provided in regions optically separated with the light shielding wall interposed therebetween.
 上記においては、前記光学的に分離された領域内に、透明または半透明の樹脂が充填されて導光部が形成されているものが好ましい。 In the above, it is preferable that the optically separated region is filled with a transparent or translucent resin to form a light guide.
 上記手段では、発光素子から放たれた光を各照光領域に効率良く行き渡すことができる。 With the above means, the light emitted from the light emitting element can be efficiently delivered to each illumination region.
 また領域ごとに異なる色を発光する前記発光素子が設けられているものとすることができる。 Further, the light emitting element that emits a different color for each region may be provided.
 上記構成では、視覚的な面から操作性を向上させることができる。
 さらには、円形状の前記ドームの一部を切断して形成されたカット部が設けられているものが好ましい。
In the above configuration, operability can be improved from a visual aspect.
Furthermore, it is preferable that a cut portion formed by cutting a part of the circular dome is provided.
 上記手段では、適度なクリック音およびクリック感を発生させることが可能となるため、操作者にスイッチ操作が行われたことを認識させることが可能となる。 In the above means, it is possible to generate an appropriate click sound and click feeling, so that the operator can recognize that the switch operation has been performed.
 さらには、前記遮光壁には、前記ドームに対向する突起が一体に形成されているものが好ましい。 Furthermore, it is preferable that the light shielding wall is integrally formed with a protrusion facing the dome.
 上記手段では、押圧力をドームに適正に伝達することが可能となるため、この点でも適度なクリック感を発生され、操作性を向上させることができる。 In the above means, it is possible to properly transmit the pressing force to the dome, so that an appropriate click feeling can be generated in this respect, and the operability can be improved.
 本発明では、遮光壁の両側に隣接配置された照光領域を光学的に確実に分離することができる。このため、一方の照光領域が、他方の照光領域の洩れ光による影響を受けることを防止することができ、各照光領域内に設けられた文字の点灯および消灯を確実に行うことができる。 In the present invention, it is possible to optically reliably separate the illumination regions arranged adjacent to both sides of the light shielding wall. For this reason, it is possible to prevent one illumination area from being affected by the leakage light of the other illumination area, and it is possible to reliably turn on and off the characters provided in each illumination area.
 図1は本発明の第1の実施の形態としての入力装置を示す斜視図、図2は図1のII-II線における断面図、図3は図1のIII-III線における断面図、図4はキートップに表示された文字等の一例を示すキートップの平面図を示している。 1 is a perspective view showing an input device as a first embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a sectional view taken along line III-III in FIG. 4 is a plan view of the key top showing an example of characters and the like displayed on the key top.
 以下に説明する入力装置1は、例えば携帯電話機、リモコン装置、携帯型のオーディオプレーヤまたはビデオプレーヤの操作面、さらにはモバイルPCなどの電子機器の操作面上のキー入力部に使用される。すなわち、図1ないし図3はキー入力部の一部を示している。 The input device 1 described below is used, for example, as a key input unit on an operation surface of a mobile phone, a remote control device, a portable audio player or a video player, and an operation surface of an electronic device such as a mobile PC. That is, FIGS. 1 to 3 show a part of the key input unit.
 図1ないし図3に示すように、入力装置1はZ2方向の最下層にプリント基板2が設けられ、Z1側の最上層にキートップ9が設けられている。 As shown in FIGS. 1 to 3, the input device 1 is provided with a printed circuit board 2 in the lowest layer in the Z2 direction and a key top 9 in the uppermost layer on the Z1 side.
 プリント基板2の表面にはリング状電極3bが設けられ、その中心には対向電極3aがリング状電極3bとは絶縁された状態で形成されている。また図2に示すように、プリント基板2上で且つ対向電極3aおよびリング状電極3bのX1側およびX2側には、電極パッド3c,3dがそれぞれ設けられており、電極パッド3c,3dには発光素子4A,4Bの下面に設けられた電極にそれぞれ接続されている。プリント基板2には、対向電極3a,リング状電極3bおよび電極パッド3c,3dに連結されるスルーホール2a,2b,2c,2dがそれぞれ形成されている。スルーホール2a,2b,2c,2d内は導電材料で満たされており、対向電極3a、リング状電極3bおよび電極パッド3c,3dは、プリント基板2の裏面側に配線された複数の導電路(図示せず)を介して外部の回路に接続されている。 A ring-shaped electrode 3b is provided on the surface of the printed circuit board 2, and a counter electrode 3a is formed in the center thereof in a state insulated from the ring-shaped electrode 3b. As shown in FIG. 2, electrode pads 3c and 3d are provided on the printed circuit board 2 and on the X1 side and the X2 side of the counter electrode 3a and the ring electrode 3b, respectively. The light emitting elements 4A and 4B are respectively connected to electrodes provided on the lower surface. Through holes 2a, 2b, 2c, and 2d connected to the counter electrode 3a, the ring-shaped electrode 3b, and the electrode pads 3c and 3d are formed in the printed board 2. The through holes 2a, 2b, 2c, 2d are filled with a conductive material, and the counter electrode 3a, the ring-shaped electrode 3b, and the electrode pads 3c, 3d have a plurality of conductive paths wired on the back side of the printed circuit board 2 ( (Not shown) and connected to an external circuit.
 リング状電極3bの上には、ドーム5Aを備えたドーム型スイッチ5が設けられている。ドーム5Aの少なくとも内面には導電部を備えており、導電部はドーム5Aそのものが金属メタルで形成される構成であってもよいし、樹脂性のドーム5Aの内面(凹面側の面)に金属層が形成される構成であってもよい。ドーム5Aは押圧力を与えない通常の状態では湾曲しており、ドーム5Aの外周側の下端5bがリング状電極3bに接している。この状態ではドーム5Aの内面(導電部)とリング状電極3bとは導通接続された状態にある。 A dome-shaped switch 5 having a dome 5A is provided on the ring electrode 3b. At least an inner surface of the dome 5A may be provided with a conductive portion, and the conductive portion may be configured such that the dome 5A itself is formed of a metal metal, or a metal is formed on the inner surface (the concave surface) of the resin dome 5A. The structure in which a layer is formed may be sufficient. The dome 5A is curved in a normal state where no pressing force is applied, and the lower end 5b on the outer peripheral side of the dome 5A is in contact with the ring-shaped electrode 3b. In this state, the inner surface (conductive portion) of the dome 5A and the ring-shaped electrode 3b are in a conductive connection state.
 図1および図2に示すように、本実施の形態に示すドーム5AはX1およびX2側の両側部には、X方向に対して平行をなすように切断したカット部5c,5cが形成されている。なお、カット部5c,5cの詳細については後述する。 As shown in FIGS. 1 and 2, the dome 5A shown in the present embodiment has cut portions 5c, 5c cut so as to be parallel to the X direction on both sides of the X1 and X2 sides. Yes. Details of the cut portions 5c and 5c will be described later.
 図1ないし図3に示すように、プリント基板2の上には、下面側に接着層(図示せず)を備えた可撓性の樹脂フィルムからなる固定シート6が貼り付けられており、この固定シート6によりドーム5Aがプリント基板2のリング状電極3bの上に固定されている。なお、固定シート6のX1およびX2側には開口穴6a,6bが形成されている。発光素子4A,4Bはこの開口穴6a,6b内に挿入されており、これら上端側に設けられた発光部は開口穴6a,6bの上部に位置している。固定シート6の中央は、ドーム5Aの表面に固着されているため、プリント基板2の表面よりも図示Z1方向の上方に凸状に盛り上がっている。 As shown in FIGS. 1 to 3, a fixed sheet 6 made of a flexible resin film having an adhesive layer (not shown) on the lower surface side is attached on the printed circuit board 2. The dome 5 </ b> A is fixed on the ring-shaped electrode 3 b of the printed circuit board 2 by the fixing sheet 6. Note that opening holes 6 a and 6 b are formed on the X 1 and X 2 sides of the fixed sheet 6. The light emitting elements 4A and 4B are inserted into the opening holes 6a and 6b, and the light emitting portion provided on the upper end side is located above the opening holes 6a and 6b. Since the center of the fixing sheet 6 is fixed to the surface of the dome 5 </ b> A, the center of the fixing sheet 6 protrudes upward in the Z <b> 1 direction from the surface of the printed circuit board 2.
 固定シート6の上には外枠7が固定されている。外枠7は遮光性(または非透過性)を有する樹脂で形成されている。あるいは光透過性を有する樹脂の表面を塗装したり,金属膜を蒸着したりして遮光性を有するようにしてもよい。図1に示すように、外枠7はX方向に平行をなす一対の長辺部7a,7aと、Y方向に平行をなす一対の短辺部7b1,7b2と有し、これらは固定シート6の外縁の表面を囲むように固着している。 The outer frame 7 is fixed on the fixed sheet 6. The outer frame 7 is formed of a resin having a light shielding property (or non-transmissive property). Or you may make it have light-shielding property by coating the surface of resin which has a light transmittance, or vapor-depositing a metal film. As shown in FIG. 1, the outer frame 7 has a pair of long side portions 7a and 7a parallel to the X direction and a pair of short side portions 7b1 and 7b2 parallel to the Y direction. It is fixed so as to surround the surface of the outer edge.
 また外枠7のX方向の中央には、一方の長辺部7aと他方の長辺部7aとの間を連結する梁状の遮光壁7cが一体形成されている。さらに遮光壁7cのY方向の中央には、図示Z1方向に凸状に突出する突起(押し子)7dが一体形成されている。遮光壁7cは固定シート6の形状に倣いながらその表面に固着されている。外枠7は、突起7dを有する中心部が一対の短辺部7b1,7b2を有する両側部よりも図示上方に盛り上がっている。そして、中心の突起7dが最も図示Z1方向に突出している。 Also, at the center of the outer frame 7 in the X direction, a beam-shaped light shielding wall 7c that connects between one long side portion 7a and the other long side portion 7a is integrally formed. Further, a projection (presser) 7d that protrudes in the Z1 direction is integrally formed at the center of the light shielding wall 7c in the Y direction. The light shielding wall 7 c is fixed to the surface of the light shielding wall 7 c while following the shape of the fixed sheet 6. In the outer frame 7, the center portion having the protrusion 7 d swells upward in the drawing from both side portions having the pair of short side portions 7 b 1 and 7 b 2. The central protrusion 7d protrudes most in the Z1 direction shown in the figure.
 なお、このような外枠7は、樹脂に金型を押し付けて形成するインプリント製法により一体形成することが可能であり、一定の成形精度を確保することができるとともに製造コストを低減することができる。 In addition, such an outer frame 7 can be integrally formed by an imprint manufacturing method in which a mold is pressed against a resin, so that a certain molding accuracy can be secured and the manufacturing cost can be reduced. it can.
 図1のX2側および図2に示すように、四方を一対の長辺部7a,7a、短辺部7b2および遮光壁7cで囲まれる第2の照光領域7B内には導光部8Bが設けられている。 As shown in the X2 side of FIG. 1 and FIG. 2, a light guide portion 8B is provided in a second illumination region 7B surrounded by a pair of long side portions 7a and 7a, a short side portion 7b2 and a light shielding wall 7c on all sides. It has been.
 導光部8Bは光透過性を有する光硬化性又は熱硬化性の樹脂を充填して硬化させることにより形成されている。なお、図1では図示していないが、四方を一対の長辺部7a,7a、短辺部7b1および遮光壁7cで囲まれるX1側の第1の照光領域7A内にも同様の導光部8Aが設けられている。遮光壁7cにより、X1側の第1の照光領域7A内とX2側の第2の照光領域7B内とが光学的に分離されている。 The light guide portion 8B is formed by filling and curing a light curable or thermosetting resin having light permeability. Although not shown in FIG. 1, the same light guide unit is also provided in the first illumination region 7A on the X1 side surrounded by the pair of long side portions 7a, 7a, the short side portion 7b1, and the light shielding wall 7c on the four sides. 8A is provided. The light shielding wall 7c optically separates the first illumination area 7A on the X1 side and the second illumination area 7B on the X2 side.
 図2に示すように、外枠7の内部に樹脂を充填すると、発光素子4A,4Bは樹脂が硬化した後の導光部8A,8B内に埋設される。導光部8A,8Bを形成する樹脂の屈折率は空気よりも大きい。このため、導光部8A,8Bがコアとして、これに接する空気がクラッドとして機能する。よって、発光素子4A,4Bにて発光した光は導光部8A,8B内を導光することが可能である。また、固定シート6の導光部側に金属薄膜やクラッドになりえる樹脂の皮膜を形成することで、光源から光らせたい部分の間の距離に対し必要な導光性能を得ることができる。その一方で、導光部8Aと導光部8Bとの間には遮光性を有する遮光壁7cが設けられている。よって、導光部8Aと導光部8B一方から他方に光が洩れることがない。また導光部8A,8Bの周囲も、遮光性を有する外枠7により囲まれているため、発光素子4A,4Bで発光した光が外枠7を超えて外部の側方に洩れることがない。 As shown in FIG. 2, when the resin is filled in the outer frame 7, the light emitting elements 4A and 4B are embedded in the light guide portions 8A and 8B after the resin is cured. The refractive index of the resin forming the light guide portions 8A and 8B is larger than that of air. For this reason, the light guide parts 8A and 8B function as a core, and the air in contact with the light guide parts 8A and 8B functions as a cladding. Therefore, the light emitted from the light emitting elements 4A and 4B can be guided in the light guide portions 8A and 8B. In addition, by forming a resin film that can be a metal thin film or a clad on the light guide portion side of the fixed sheet 6, a necessary light guide performance can be obtained with respect to the distance between the portions that are desired to emit light from the light source. On the other hand, a light shielding wall 7c having a light shielding property is provided between the light guide 8A and the light guide 8B. Therefore, light does not leak from one of the light guide 8A and the light guide 8B to the other. Further, since the periphery of the light guide portions 8A and 8B is also surrounded by the outer frame 7 having a light shielding property, the light emitted from the light emitting elements 4A and 4B does not leak to the outside side beyond the outer frame 7. .
 このため、導光部8A,8Bの表面に、例えば細かい凹凸を設けた光出射部を部分的に形成したり、固定シート6に白色の散乱ドットを形成したりしておくことにより、光を上方のキー入力部側に向けて出射させることができ、キー入力部側に設けられたキートップ9を背面から照光することができる。これにより、キートップ9の表面を明るく表示させることができる。 For this reason, for example, by forming a light emitting part with fine irregularities partially on the surface of the light guide parts 8A and 8B, or by forming white scattering dots on the fixed sheet 6, light is emitted. The light can be emitted toward the upper key input unit, and the key top 9 provided on the key input unit can be illuminated from the back. Thereby, the surface of the key top 9 can be displayed brightly.
 ところで、図4に示すように、この実施の形態に示すキートップ9では、例えば中心線O-Oよりも図示X2側には「2」の数字が、中心線O-Oよりも図示X1側には「ABC」の3文字のアルファベットがそれぞれ印刷等により表示されておりキートップを操作することにより、これらの数字または文字を選択して入力できるようになっている。なお、数字およびアルファベットはこれらに限られるものではない。 Incidentally, as shown in FIG. 4, in the key top 9 shown in this embodiment, for example, the number “2” is closer to the X2 side than the center line OO and the X1 side is closer to the X1 side than the center line OO. Each of the three alphabets “ABC” is displayed by printing or the like, and these numbers or characters can be selected and input by operating the key top. The numbers and alphabets are not limited to these.
 そして、X1側の発光素子4Aが点灯すると導光部8Aを介してキートップ9のX1側に表示された「ABC」の3文字が照光され、X2側の発光素子4Bが点灯すると導光部8Bを介してキートップ9のX2側に表示された「2」の数字が照光される。 When the light emitting element 4A on the X1 side is turned on, the three letters “ABC” displayed on the X1 side of the key top 9 are illuminated via the light guide part 8A, and when the light emitting element 4B on the X2 side is turned on, the light guiding part. The number “2” displayed on the X2 side of the key top 9 is illuminated via 8B.
 このとき、導光部8Aと導光部8Bとの間には遮光性を有する遮光壁7cが設けられて光学的に分離されており、一方の領域内で発光した光が他方の領域に洩れることがない。 At this time, a light-shielding wall 7c having a light-shielding property is provided between the light guide part 8A and the light guide part 8B so as to be optically separated, and light emitted in one region leaks into the other region. There is nothing.
 この結果、X1側の発光素子4Aが点灯したときにはX1側の「ABC」の3文字のみが照光され、X2側の「2」の数字が点灯することを避けることができる。同様に、X2側の発光素子4Bが点灯したときにはX2側の「2」の数字のみが照光され、X1側の「ABC」の3文字が点灯することを避けることができる。 As a result, when the light emitting element 4A on the X1 side is lit, only three characters “ABC” on the X1 side are illuminated, and it is possible to avoid lighting the number “2” on the X2 side. Similarly, when the light emitting element 4B on the X2 side is lit, only the number “2” on the X2 side is illuminated, and it is possible to avoid lighting the three characters “ABC” on the X1 side.
 なお、発光素子4A,4Bの点滅の制御は、入力装置1が搭載される電子機器の制御部により行われる。 Note that the blinking control of the light emitting elements 4A and 4B is performed by a control unit of an electronic device in which the input device 1 is mounted.
 次に、入力装置のスイッチ動作について説明する。
 指Fによりキートップ9の表面を押下する押圧力を与えると、キートップ9の下面が突起7dに当接するため、遮光壁7cを介してドーム5Aの頂点5aをZ2方向に押下することができる。
Next, the switch operation of the input device will be described.
When a pressing force is applied to press the surface of the key top 9 with the finger F, the lower surface of the key top 9 comes into contact with the projection 7d, and therefore the vertex 5a of the dome 5A can be pressed in the Z2 direction via the light shielding wall 7c. .
 このときドーム5Aの外周側の下端5bが、リング状電極3b上を外周方向に摺動する。同時に、ドーム5Aが変形し、ドーム5Aの内面(導電部)がプリント基板2上の対向電極3aに接触する。このため、対向電極3aとリング状電極3bとがドーム5Aを介して導通接続され、これによりスルーホール2aとスルーホール2bとの間のスイッチ状態をオンに切り換えることができる。 At this time, the lower end 5b on the outer peripheral side of the dome 5A slides on the ring-shaped electrode 3b in the outer peripheral direction. At the same time, the dome 5 </ b> A is deformed, and the inner surface (conductive portion) of the dome 5 </ b> A contacts the counter electrode 3 a on the printed circuit board 2. For this reason, the counter electrode 3a and the ring-shaped electrode 3b are conductively connected via the dome 5A, whereby the switch state between the through hole 2a and the through hole 2b can be switched on.
 またキートップ9の表面から指Fを離して押圧力を解除すると、ドーム5Aが元の状態に復元する。この際、ドーム5Aの内面(導電部)がプリント基板2上の対向電極3aから離れるため、スルーホール2aとスルーホール2bとの間のスイッチ状態がオフに切り換わる。 Also, when the finger F is released from the surface of the key top 9 to release the pressing force, the dome 5A is restored to the original state. At this time, since the inner surface (conductive portion) of the dome 5A is separated from the counter electrode 3a on the printed board 2, the switch state between the through hole 2a and the through hole 2b is switched off.
 そして、ドーム5Aが、変形前の初期状態から変形後の状態に切り換わるとき、および変形後の状態から変形前の初期状態に復帰する際に、適度なクリック音およびクリック感を発生させる。これにより、操作者にスイッチ操作が行われたことを認識させることが可能となっている。 And when the dome 5A switches from the initial state before deformation to the state after deformation, and when returning from the state after deformation to the initial state before deformation, an appropriate click sound and click feeling are generated. This makes it possible for the operator to recognize that the switch operation has been performed.
 ここで、本発明では、ドーム5Aの両側にカット部5c,5cを有しており、これらは外枠7を形成する一対に長辺部7a,7aに対して平行に形成されている。 Here, in the present invention, the cut portions 5c and 5c are provided on both sides of the dome 5A, and these are formed in parallel to the long side portions 7a and 7a as a pair forming the outer frame 7.
 カット部5c,5c部分はプリント基板2から浮いた状態となる。またカット部5c,5cを有する分だけドーム5Aの幅寸法(Y方向の幅寸法)を狭くすることができる。このため、カット部5c,5cとこれらに対向する外枠7の長辺部7a,7aとの間の距離を、カット部5c,5cを有しない場合に比較して長めに確保することができる。 The cut portions 5c and 5c are in a state of floating from the printed board 2. Further, the width dimension (width dimension in the Y direction) of the dome 5A can be reduced by the amount of the cut portions 5c and 5c. For this reason, the distance between the cut portions 5c and 5c and the long side portions 7a and 7a of the outer frame 7 facing them can be secured longer than when the cut portions 5c and 5c are not provided. .
 これらにより、ドーム5Aを押下する際に必要とする押圧力を低減することが可能となる一方で、低い押圧力でも一定のクリック音およびクリック感を確保することができ、安定したクリック操作を行うことが可能となる。 As a result, it is possible to reduce the pressing force required when pressing down the dome 5A, while ensuring a constant click sound and clicking feeling even with a low pressing force, and performing a stable click operation. It becomes possible.
 また外枠7の遮光壁7cは、ドーム5Aのカット部5c,5cに対して垂直に形成され、ドーム5Aの頂点5aを通るように前記固定シートの表面に設けられている。そして、突起7dはドーム5Aの頂点5aの真上の位置に来るように形成されている。このため、キートップ9を押下した押圧力を、ドーム5Aの頂点5aに効率良く伝達することができ、この点でも安定したクリック操作を行うことが可能となっている。 The light shielding wall 7c of the outer frame 7 is formed perpendicular to the cut portions 5c, 5c of the dome 5A, and is provided on the surface of the fixed sheet so as to pass through the apex 5a of the dome 5A. The protrusion 7d is formed so as to come to a position directly above the vertex 5a of the dome 5A. For this reason, the pressing force of pressing the key top 9 can be efficiently transmitted to the vertex 5a of the dome 5A, and a stable click operation can be performed in this respect as well.
 図5は本発明の第2の実施の形態としての入力装置を示す平面図であり、(A)は複数のキートップを有するキー入力部を示す平面図、(B)はキートップを外した状態の入力装置本体を示す平面図である。なお、図5(B)は一枚のプリント基板の上に複数の入力装置1を設けた場合を示しており、最上層のキートップを有するキー入力部を外した状態を示している。 FIG. 5 is a plan view showing an input device according to a second embodiment of the present invention, (A) is a plan view showing a key input unit having a plurality of key tops, and (B) is a key top removed. It is a top view which shows the input device main body of a state. FIG. 5B shows a case where a plurality of input devices 1 are provided on a single printed board, and shows a state in which the key input unit having the uppermost key top is removed.
 図5(A)に示すように、キー入力部には、12ヶのキートップ9が略マトリックス状に配置されている。各キートップ9には、それぞれの中心よりもX1側にアルファベットの文字等が、またX2側に数字や記号がそれぞれ印刷等により表示されている。 As shown in FIG. 5A, twelve key tops 9 are arranged in a substantially matrix shape in the key input section. On each key top 9, alphabetical characters and the like are displayed on the X1 side from the center, and numbers and symbols are displayed on the X2 side by printing or the like.
 図5(B)に示すように、入力装置1の本体側の基本的な構成は上記第1の実施の形態と同様であり、複数の入力装置1が一枚のプリント基板2上に形成されている。 As shown in FIG. 5B, the basic configuration of the input device 1 on the main body side is the same as that of the first embodiment, and a plurality of input devices 1 are formed on a single printed board 2. ing.
 ただし、各入力装置1は部分的に連結されている点で相違する部分があるため、以下に説明する。 However, each input device 1 is different in that it is partially connected and will be described below.
 すなわち、図5(B)に示すように、プリント基板2には、Y方向に延びる第1の照光領域7Aと第2の照光領域7BとがともにX方向に交互に配置されている。 That is, as shown in FIG. 5B, the printed circuit board 2 has first illumination areas 7A and second illumination areas 7B extending in the Y direction alternately arranged in the X direction.
 隣接するX1側の第1の照光領域7AとX2側の第2の照光領域7Bとが一組の入力部を形成している。図5では3組の入力部が設けられている。 The adjacent first illumination area 7A on the X1 side and the second illumination area 7B on the X2 side form a set of input portions. In FIG. 5, three sets of input units are provided.
 一組の入力部を構成する第1の照光領域7Aと第2の照光領域7Bとの間には、複数のドーム型スイッチ5がY方向に沿って所定の間隔で配置されている。 A plurality of dome-shaped switches 5 are arranged at predetermined intervals along the Y direction between the first illumination region 7A and the second illumination region 7B constituting the set of input units.
 遮光性を有する外枠7は、略正方形状のプリント基板2上(実際には、プリント基板2の表面に貼り付けられた固定シートの上)にその外縁に沿って形成されており、この外枠7によって入力装置1の内部と外部との間が遮光されている。外枠7には、Y1側の一方に辺部からY2側の他方の辺部との間に複数(図5(B)では3本)の遮光壁7c1が形成されている。各遮光壁7c1は、プリント基板2および各ドーム型スイッチ5のドーム5Aの形状に倣うとともに各頂点5a上を通過する形状で形成されている。この遮光壁7c1により一組の入力部を構成する第1の照光領域7Aと第2の照光領域7Bとが光学的に分離されている。 The outer frame 7 having a light-shielding property is formed along the outer edge of the substantially square printed board 2 (actually, on a fixed sheet attached to the surface of the printed board 2). A frame 7 shields light from the inside and outside of the input device 1. In the outer frame 7, a plurality (three in FIG. 5B) of light shielding walls 7c1 are formed between one side on the Y1 side and the other side on the Y2 side. Each light shielding wall 7c1 is formed in a shape that follows the shape of the dome 5A of the printed circuit board 2 and each dome-type switch 5 and passes over each vertex 5a. The light shielding wall 7c1 optically separates the first illumination region 7A and the second illumination region 7B constituting a set of input portions.
 なお、一方の入力部を構成するX1側の第2の照光領域7Bと他方の入力部を構成するX2側の第1の照光領域7Aとが隣接する境界部分にも、Y方向に延びる遮光壁7c2が設けられており、これらの間における光の洩れも防止されている。 A light shielding wall extending in the Y direction also at a boundary portion where the second illumination area 7B on the X1 side constituting one input part and the first illumination area 7A on the X2 side constituting the other input part are adjacent to each other. 7c2 is provided, and light leakage between them is also prevented.
 第1の照光領域7AのY1側の端部には発光素子4Aがそれぞれ設けられ、同じく第2の照光領域7BのY1側の端部には発光素子4Bがそれぞれ設けられている。第1の照光領域7Aおよび第2の照光領域7B内にはそれぞれ光透過性を有する樹脂で埋設され、これにより導光部8A,8Bがそれぞれ形成されている。 A light emitting element 4A is provided at the end of the first illumination area 7A on the Y1 side, and a light emitting element 4B is provided at the end of the second illumination area 7B on the Y1 side. The first illuminating area 7A and the second illuminating area 7B are each buried with a light-transmitting resin, whereby light guide portions 8A and 8B are formed, respectively.
 第1の照光領域7Aの導光部8Aは各キートップ9のアルファベットに対向し、第2の照光領域7Bの導光部8Bは各キートップ9の数字に対向している。このため、X1側の発光素子4A,4A,4Aを点灯させると、第1の照光領域7A,7A,7A側の導光部8A,8A,8Aのみを発光させることができる。よって、縦方向(Y方向)に一列に並ぶ各キートップ9の表面にそれぞれ表示されているすべてのアルファベットを照光させることができるとともに、数字は照光されないようにすることができる。 The light guide 8A of the first illumination area 7A faces the alphabet of each key top 9, and the light guide 8B of the second illumination area 7B faces the number of each key top 9. For this reason, when the light emitting elements 4A, 4A, 4A on the X1 side are turned on, only the light guide portions 8A, 8A, 8A on the first illumination regions 7A, 7A, 7A side can emit light. Therefore, it is possible to illuminate all alphabets displayed on the surface of each key top 9 arranged in a line in the vertical direction (Y direction), and it is possible to prevent the numbers from being illuminated.
 同様に、X2側の発光素子4B,4B,4Bを点灯させると、第2の照光領域7B,7B,7B側の導光部8B,8B,8Bのみを発光させることができる。よって、縦方向(Y方向)に一列に並ぶ各キートップ9の表面にそれぞれ表示されているすべての数字と一部の記号(*、#)を照光させることができるとともに、アルファベットは照光されないようにすることができる。 Similarly, when the light emitting elements 4B, 4B, and 4B on the X2 side are turned on, only the light guide portions 8B, 8B, and 8B on the second illumination regions 7B, 7B, and 7B side can emit light. Therefore, it is possible to illuminate all the numbers and some symbols (*, #) displayed on the surface of each key top 9 arranged in a line in the vertical direction (Y direction), and not to illuminate the alphabet. Can be.
 このように第2の実施の形態においても第1の照光領域7Aと第2の照光領域7Bとの間における光の相互干渉を防止することができる。また第2の実施の形態では、1つの発光素子4A又は4Bを点灯することにより、各第1の照光領域7A又は各第2の照光領域7Bに縦(Y)方向に並ぶ複数の文字等を同時に照光することができる。このため、発光素子4A又は発光素子4Bを数字や文字ごとに設ける必要がなく、第1の照光領域7Aと第2の照光領域7Bごとに設ければよいため、この点で部品点数の増大を抑えることができる。 Thus, also in the second embodiment, mutual interference of light between the first illumination region 7A and the second illumination region 7B can be prevented. In the second embodiment, by turning on one light-emitting element 4A or 4B, a plurality of characters arranged in the vertical (Y) direction in each first illumination region 7A or each second illumination region 7B are displayed. It can be illuminated at the same time. For this reason, it is not necessary to provide the light emitting element 4A or the light emitting element 4B for each number or character, and it is sufficient to provide the light emitting element 4A for each of the first illumination region 7A and the second illumination region 7B. Can be suppressed.
 図6は本発明の第3の実施の形態を示す入力装置の平面図であり、(A)はキートップの表面を示す平面図、(B)はキートップを外した状態の入力装置本体を示す平面図である。 FIG. 6 is a plan view of an input device according to a third embodiment of the present invention, in which (A) is a plan view showing the surface of the key top, and (B) is an input device main body with the key top removed. FIG.
 図6に示す実施の形態に示す入力装置本体の基本的な構成も上記第1の実施の形態と同様である。このため、以下においては第1の実施の形態と異なる点を中心に説明する。 The basic configuration of the input device main body shown in the embodiment shown in FIG. 6 is the same as that in the first embodiment. For this reason, the following description will focus on differences from the first embodiment.
 図6(A)に示すように、この実施の形態に示すキートップ9には3つの分割された第1、第2および第3の表示領域9a,9b,9cが設けられている。例えば、第1の表示領域9aにはかな文字の「か」が表示され、第2の表示領域9bにはアルファベットの「ABC」が表示され、第3の表示領域9cには数字の「2」が表示されている。それぞれの文字等は、キートップ9が透明または半透明な材料で形成されている場合には、キートップ9の表面または裏面に印刷等で形成することができる。またキートップ9が光透過性を有しない樹脂や金属で形成されている場合には、文字をその形状で刳り貫くとともに、刳り貫いた部分に透明または半透明の樹脂で覆うことにより形成されている。 As shown in FIG. 6A, the key top 9 shown in this embodiment is provided with three divided first, second and third display areas 9a, 9b and 9c. For example, the kana character "ka" is displayed in the first display area 9a, the alphabet "ABC" is displayed in the second display area 9b, and the number "2" is displayed in the third display area 9c. Is displayed. When the key top 9 is formed of a transparent or translucent material, each character or the like can be formed on the front or back surface of the key top 9 by printing or the like. Further, when the key top 9 is formed of a resin or metal that does not have optical transparency, the key top 9 is formed by piercing the character in its shape and covering the pierced portion with a transparent or translucent resin. Yes.
 他方、図6(B)に示すように、入力装置1の本体は、略正方形状のプリント基板2の中央にドーム型スイッチ5が設けられている。またプリント基板2上(実際には、プリント基板2の表面に貼り付けられた固定シートの上)でその縁部には外縁に沿って形成された外枠7が形成されている。この外枠7により、入力装置1の内部と外部との間が遮光されている。 On the other hand, as shown in FIG. 6B, the main body of the input device 1 is provided with a dome-shaped switch 5 at the center of a substantially square printed board 2. Further, an outer frame 7 formed along the outer edge is formed on the edge of the printed board 2 (actually, on the fixed sheet attached to the surface of the printed board 2). The outer frame 7 shields light from the inside and outside of the input device 1.
 また外枠7には、外枠7の一方の縁部(図6ではY1側の縁部)から中心部に向かって直線的に延びる遮光壁7cが一体に形成されている。この入力装置1では、遮光壁7cを挟んで、X1側の第1の照光領域7AとX2側の第2の照光領域7Bとに分けられている。そして、第1の照光領域7Aには発光素子4Aが設けられ、第2の照光領域7Bには発光素子4Bが設けられている。 The outer frame 7 is integrally formed with a light shielding wall 7c extending linearly from one edge of the outer frame 7 (the edge on the Y1 side in FIG. 6) toward the center. The input device 1 is divided into a first illumination region 7A on the X1 side and a second illumination region 7B on the X2 side with a light shielding wall 7c interposed therebetween. A light emitting element 4A is provided in the first illumination area 7A, and a light emitting element 4B is provided in the second illumination area 7B.
 第1の照光領域7Aは、かな文字の「か」が表示された第1の表示領域9aに対応し、第2の照光領域7Bはアルファベットの「ABC」が表示された第2の表示領域9bに対応している。また遮光壁7cが設けられていない図示Y2側の第3の照光領域7Cは共通領域であり、数字の「2」が表示された第3の表示領域9cに対応している。 The first illumination area 7A corresponds to the first display area 9a where the kana character "ka" is displayed, and the second illumination area 7B is the second display area 9b where the alphabet "ABC" is displayed. It corresponds to. A third illumination area 7C on the Y2 side in the figure, which is not provided with the light shielding wall 7c, is a common area and corresponds to the third display area 9c in which the numeral “2” is displayed.
 第1の照光領域7A、第2の照光領域7Bおよび第3の照光領域7Cには、光透過性を有する光硬化性又は熱硬化性の樹脂を充填し、その後に硬化させることにより形成された導光部が設けられている。 The first illumination region 7A, the second illumination region 7B, and the third illumination region 7C were formed by filling a light curable or thermosetting resin having light permeability and then curing the resin. A light guide is provided.
 発光素子4Aが点灯すると、光は導光部を透過して第1の照光領域7Aおよび第3の照光領域7Cに広がるため、第1の表示領域9aに設けられたかな文字の「か」及び第3の表示領域9cに設けられた数字の「2」を同時に照光することができる。ただし、第1の照光領域7A、第2の照光領域7Bとの間は遮光壁7cで光学的に分離されており、発光素子4Aの光は隣接する第2の照光領域7Bには届かないため、第2の表示領域9bに表示されたアルファベットの「ABC」が照光されることはない。 When the light emitting element 4A is turned on, the light passes through the light guide and spreads to the first illumination area 7A and the third illumination area 7C. Therefore, the kana characters “ka” provided in the first display area 9a and The numeral “2” provided in the third display area 9c can be illuminated at the same time. However, since the first illumination region 7A and the second illumination region 7B are optically separated by the light shielding wall 7c, the light of the light emitting element 4A does not reach the adjacent second illumination region 7B. The alphabet “ABC” displayed in the second display area 9b is not illuminated.
 同様に、発光素子4Bが点灯すると、光は導光部を透過して第2の照光領域7Bおよび第3の照光領域7Cに広がるため、第2の表示領域9bに設けられたアルファベットの「ABC」及び第3の表示領域9cに設けられた数字の「2」を同時に照光することができる。ただし、発光素子4Bの光は遮光壁7cで光学的に分離され、隣接する第1の照光領域7Aには届かないため、第1の表示領域9aに表示されたかな文字の「か」が照光されることはない。 Similarly, when the light emitting element 4B is turned on, the light passes through the light guide and spreads to the second illumination region 7B and the third illumination region 7C, and therefore the alphabet “ABC” provided in the second display region 9b. "And the number" 2 "provided in the third display area 9c can be illuminated at the same time. However, since the light of the light emitting element 4B is optically separated by the light shielding wall 7c and does not reach the adjacent first illumination area 7A, the kana character “ka” displayed in the first display area 9a is illuminated. It will never be done.
 さらに、発光素子4Aと発光素子4Bとを同時に点灯すると、発光素子4Aの光は第1の照光領域7Aと第3の照光領域7Cに、発光素子4Bの光は第2の照光領域7Bと第3の照光領域7Cに、それぞれ同時に広がる。このため、第1の表示領域9aに設けられたかな文字の「か」及び第2の表示領域9bに表示されたアルファベットの「ABC」だけでなく、第3の表示領域9cに設けられた数字の「2」を同時に照光することができる。つまり、キートップ9に表示されているすべての文字等が照光される。 Further, when the light emitting element 4A and the light emitting element 4B are turned on simultaneously, the light of the light emitting element 4A is in the first illumination area 7A and the third illumination area 7C, and the light of the light emitting element 4B is in the second illumination area 7B and the second illumination area 7B. 3 illuminating areas 7C spread simultaneously. For this reason, not only the kana character “ka” provided in the first display area 9a and the alphabet “ABC” displayed in the second display area 9b, but also the numbers provided in the third display area 9c. "2" can be illuminated at the same time. That is, all characters displayed on the key top 9 are illuminated.
 このように、発光素子4Aと発光素子4Bのいずれかを点灯させると、常に第3の表示領域9cに設けられた数字の「2」を照光することができる。このため、使用頻度の高い文字又は数字等を第3の表示領域9cが来るようにキートップ9に形成しておくことにより、使用頻度の高い文字等が常時照光される状態に設定しておくことができる。これにより、操作性の高い入力装置1を備えた電子機器とすることが可能となる。 Thus, when either the light emitting element 4A or the light emitting element 4B is turned on, the numeral “2” provided in the third display area 9c can always be illuminated. For this reason, a frequently used character or number is formed on the key top 9 so that the third display area 9c comes, so that a frequently used character or the like is always illuminated. be able to. Thereby, it becomes possible to set it as the electronic device provided with the input device 1 with high operativity.
 また発光素子4Aと発光素子4Bとは発光色の異なるものであってもよい。すなわち、発光素子4Aを第1の光(例えば、赤色)を発するLEDとし、発光素子4Bを第2の光(例えば、緑色)を発するLEDとする。 Further, the light emitting element 4A and the light emitting element 4B may have different emission colors. That is, the light emitting element 4A is an LED that emits first light (for example, red), and the light emitting element 4B is an LED that emits second light (for example, green).
 すると、発光素子4Aが点灯させたときには第1の表示領域9aに設けられたかな文字の「か」及び第3の表示領域9cに設けられたかな数字の「2」を第1の光(赤色の光)で照光することができる。また発光素子4Bが点灯させたときには、第2の表示領域9bに設けられたアルファベットの「ABC」及び第3の表示領域9cに設けられた数字の「2」を第2の光(緑色の光)で照光することができる。 Then, when the light emitting element 4A is turned on, the kana character “ka” provided in the first display area 9a and the kana number “2” provided in the third display area 9c are changed to the first light (red). Light). When the light emitting element 4B is turned on, the alphabet “ABC” provided in the second display area 9b and the number “2” provided in the third display area 9c are changed to the second light (green light). ).
 さらに、発光素子4Aと発光素子4Bとを同時に点灯させると、第1の表示領域9aに設けられたかな文字の「か」は第1の光(赤色の光)により、第2の表示領域9bに設けられたアルファベットの「ABC」は第2の光(緑色の光)によりそれぞれ照光することができ、さらに共通の領域である第3の表示領域9cに設けられた数字の「2」については第1の光(赤色の光)と第2の光(緑色の光)との加法混色させられることにより生成される第3の光(黄色の光)で照光させることが可能となる。 Further, when the light emitting element 4A and the light emitting element 4B are turned on at the same time, the kana character "ka" provided in the first display area 9a is converted into the second display area 9b by the first light (red light). The alphabet “ABC” provided on the second display can be illuminated by the second light (green light), and the number “2” provided in the third display area 9c, which is a common area, It is possible to illuminate with the third light (yellow light) generated by the additive color mixture of the first light (red light) and the second light (green light).
 このように、発光素子4Aと発光素子4Bを同時に発光させると、第1、第2および第3の表示領域9a,9b,9cに設けられた文字等を異なる色で照光することが可能となり、入力装置1の意匠性および操作性を高めることが可能となる。 As described above, when the light emitting element 4A and the light emitting element 4B are caused to emit light simultaneously, it is possible to illuminate characters and the like provided in the first, second, and third display areas 9a, 9b, and 9c with different colors, It becomes possible to improve the designability and operability of the input device 1.
 上記実施の形態では、ドーム5AはX1およびX2側の両側部に、X方向に対して平行をなすように切断したカット部5c,5cが形成された構成を示して説明したが、本発明はこれに限られるものではない。 In the above embodiment, the dome 5A has been described by showing the configuration in which the cut portions 5c and 5c cut so as to be parallel to the X direction are formed on both sides of the X1 and X2 sides. It is not limited to this.
 図7はドームの他の構成例を示す平面図であり、(A)は4箇所にカット部を形成した場合、(B)は3箇所にカット部を形成した場合、(C)はカット部と遮光壁の数が一致しない場合を示している。 7A and 7B are plan views showing other configuration examples of the dome, in which FIG. 7A shows a case where cut portions are formed at four locations, FIG. 7B shows a case where cut portions are formed at three locations, and FIG. And the number of light shielding walls does not match.
 図7(A)に示すように、4箇所にカット部5c,5c,5c,5cを形成する構成であってもよいし、図7(B)に示すように、3箇所にカット部5c,5c,5cを形成する構成であってもよい。いずれの場合も、遮光壁7cとカット部5cとが互いに垂直を成すように配置した構成が好ましい。 As shown in FIG. 7A, the cut portions 5c, 5c, 5c, and 5c may be formed at four locations, or the cut portions 5c and 5c at three locations as shown in FIG. 7B. The structure which forms 5c and 5c may be sufficient. In any case, a configuration in which the light shielding wall 7c and the cut portion 5c are arranged so as to be perpendicular to each other is preferable.
 これにより、ドーム5Aを押下する際に必要とする押圧力を低減することが可能となる一方で、押圧力を確実にドーム5Aの頂点に与えることができる。よって、低い押圧力でも一定のクリック音およびクリック感を確保することができ、安定したクリック操作を行うことが可能となる。 This makes it possible to reduce the pressing force required when pressing down the dome 5A, while ensuring that the pressing force is applied to the apex of the dome 5A. Therefore, a constant click sound and click feeling can be secured even with a low pressing force, and a stable click operation can be performed.
 なお、図7(C)に示すように、カット部5cの数(4つ)と遮光壁7cの数(1つ)とは必ずしも一致しない構成であってもよいが、少なくとも1以上の遮光壁7cを備えることが好ましい。 As shown in FIG. 7C, the number of cut portions 5c (four) and the number of light shielding walls 7c (one) may not necessarily match, but at least one or more light shielding walls. 7c is preferably provided.
本発明の第1の実施の形態としての入力装置を示す斜視図、The perspective view which shows the input device as the 1st Embodiment of this invention, 図1のII-II線における断面図、Sectional view taken along line II-II in FIG. 図1のIII-III線における断面図、Sectional view taken along line III-III in FIG. キートップに表示された文字等の一例を示すキートップの平面図、A plan view of the key top showing an example of characters etc. displayed on the key top; 本発明の第2の実施の形態としての入力装置を示す平面図であり、(A)は複数のキートップを有するキー入力部を示す平面図、(B)はキートップを外した状態の入力装置本体を示す平面図、It is a top view which shows the input device as the 2nd Embodiment of this invention, (A) is a top view which shows the key input part which has several keytops, (B) is the input of the state which removed the keytops A plan view showing the apparatus main body, 本発明の第3の実施の形態を示す入力装置の平面図であり、(A)はキートップの表面を示す平面図、(B)はキートップを外した状態の入力装置本体を示す平面図、It is a top view of the input device which shows the 3rd Embodiment of this invention, (A) is a top view which shows the surface of a keytop, (B) is a top view which shows the input device main body of a state which removed the keytop , ドームの他の構成例を示す平面図であり、(A)は4箇所にカット部を形成した場合、(B)は3箇所にカット部を形成した場合、(C)はカット部と遮光壁の数が一致しない場合、It is a top view which shows the other structural example of a dome, (A) when a cut part is formed in four places, (B) is a case where a cut part is formed in three places, (C) is a cut part and a light-shielding wall. If the number of
1 入力装置
2 プリント基板(基板)
3a 対向電極
3b リング状電極
4A,4B 発光素子
5 ドーム型スイッチ
5A ドーム
5c カット部
6 固定シート
7 外枠
7c,7c1,7c2 遮光壁
7d 突起(押し子)
7A 第1の照光領域
7B 第2の照光領域
8A,8B 導光部
9 キートップ
9a 第1の表示領域
9b 第2の表示領域
9c 第3の表示領域
1 Input device 2 Printed circuit board (board)
3a Counter electrode 3b Ring electrodes 4A and 4B Light emitting element 5 Dome type switch 5A Dome 5c Cut part 6 Fixed sheet 7 Outer frame 7c, 7c1, 7c2 Light shielding wall 7d Protrusion (pushing element)
7A 1st illumination area 7B 2nd illumination area 8A, 8B Light guide part 9 Key top 9a 1st display area 9b 2nd display area 9c 3rd display area

Claims (16)

  1.  押圧力に応じて変形し基板上に形成された電極に接触可能な導電部を有するドームを備えたドーム型接点スイッチと、前記ドームを前記基板上に固定する固定シートと、前記固定シートの外縁に沿って形成された外枠と、前記ドームの近傍に置かれた発光素子と、を備えた入力装置において、
     前記ドームの形状に倣いながら前記固定シートの表面に設けられる少なくとも1以上の遮光壁が形成されており、前記遮光壁の一方に設けられた領域と他方に設けられた領域が、前記ドームの面上において光学的に分離されていることを特徴とする入力装置。
    A dome-type contact switch having a dome having a conductive portion deformable according to the pressing force and capable of contacting an electrode formed on the substrate, a fixing sheet for fixing the dome on the substrate, and an outer edge of the fixing sheet In an input device comprising an outer frame formed along a light emitting element placed in the vicinity of the dome,
    At least one light shielding wall provided on the surface of the fixed sheet while following the shape of the dome is formed, and a region provided on one side of the light shielding wall and a region provided on the other are the surfaces of the dome. An input device that is optically separated above.
  2.  前記遮光壁が前記外枠と一体形成されている請求項1記載の入力装置。 The input device according to claim 1, wherein the light shielding wall is formed integrally with the outer frame.
  3.  前記遮光壁には、前記ドームに対向する突起が一体に形成されている請求項2記載の入力装置。 The input device according to claim 2, wherein a projection facing the dome is integrally formed on the light shielding wall.
  4.  前記光学的に分離された領域内に、透明または半透明の樹脂が充填されて導光部が形成されている請求項3記載の入力装置。 The input device according to claim 3, wherein the optically separated region is filled with a transparent or translucent resin to form a light guide.
  5.  円形状の前記ドームの一部を切断して形成されたカット部が設けられている請求項4に記載の入力装置。 The input device according to claim 4, wherein a cut portion formed by cutting a part of the circular dome is provided.
  6.  前記遮光壁が、前記ドーム型スイッチを挟んでその両側の位置にて対向する一方の外枠と他方の外枠との間を連結するように形成されている請求項4記載の入力装置。 The input device according to claim 4, wherein the light shielding wall is formed so as to connect between one outer frame and the other outer frame facing each other on both sides of the dome-shaped switch.
  7.  前記遮光壁が、前記ドーム型スイッチを挟んだその両側の位置にて対向する一方の外枠と前記ドームの中心部との間に形成されている請求項4記載の入力装置。 The input device according to claim 4, wherein the light shielding wall is formed between one outer frame and the center of the dome facing each other at positions on both sides of the dome type switch.
  8.  前記発光素子が、前記遮光壁を挟んで光学的に分離された領域内にそれぞれ設けられている請求項4記載の入力装置。 The input device according to claim 4, wherein the light emitting elements are respectively provided in optically separated regions across the light shielding wall.
  9.  領域ごとに異なる色を発光する前記発光素子が設けられている請求項8記載の入力装置。 The input device according to claim 8, wherein the light emitting element that emits a different color for each region is provided.
  10.  前記遮光壁が、前記ドーム型スイッチを挟んでその両側の位置にて対向する一方の外枠と他方の外枠との間を連結するように形成されている請求項1記載の入力装置。 The input device according to claim 1, wherein the light shielding wall is formed so as to connect between one outer frame and the other outer frame facing each other on both sides of the dome-shaped switch.
  11.  前記遮光壁が、前記ドーム型スイッチを挟んだその両側の位置にて対向する一方の外枠と前記ドームの中心部との間に形成されている請求項1記載の入力装置。 The input device according to claim 1, wherein the light shielding wall is formed between one outer frame and the center of the dome facing each other on both sides of the dome type switch.
  12.  前記発光素子が、前記遮光壁を挟んで光学的に分離された領域内にそれぞれ設けられている請求項1記載の入力装置。 The input device according to claim 1, wherein the light emitting elements are respectively provided in optically separated regions across the light shielding wall.
  13.  前記光学的に分離された領域内に、透明または半透明の樹脂が充填されて導光部が形成されている請求項1記載の入力装置。 The input device according to claim 1, wherein the optically separated region is filled with a transparent or translucent resin to form a light guide.
  14.  領域ごとに異なる色を発光する前記発光素子が設けられている請求項12または13記載の入力装置。 The input device according to claim 12 or 13, wherein the light emitting element that emits a different color for each region is provided.
  15.  円形状の前記ドームの一部を切断して形成されたカット部が設けられている請求項1記載の入力装置。 The input device according to claim 1, wherein a cut portion formed by cutting a part of the circular dome is provided.
  16.  前記遮光壁には、前記ドームに対向する突起が一体に形成されている請求項1記載の入力装置。 The input device according to claim 1, wherein a projection facing the dome is integrally formed on the light shielding wall.
PCT/JP2009/064333 2008-08-28 2009-08-14 Input device WO2010024137A1 (en)

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JP2011029156A (en) * 2009-06-29 2011-02-10 Panasonic Corp Light guide sheet and movable contact assembly using the same
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KR101142389B1 (en) 2012-05-18
CN102132369A (en) 2011-07-20
KR20110038707A (en) 2011-04-14
JPWO2010024137A1 (en) 2012-01-26
CN102132369B (en) 2013-11-20

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