JP2019144523A - Display and input device - Google Patents

Abstract

To provide a display capable of improving the display qualities of first and second designs displayed by light having different type passages.SOLUTION: A display 100 comprises: first light sources 122 and 123; a second light source 124; a light guide body 114 for guiding first light emitted from the first light sources to display first designs 141-146 by reflecting the guided first light on a reflection part having the shapes of the first designs 141-146; and a mask body 115 for transmitting second light emitted from the second light source 124 in a light transmission portion having the shapes of second designs 151-156 to intercept the second light in a light blocking portion except the light transmission portion. First display luminance displaying the first designs 141-146 and second display luminance displaying the second designs 151-156 are controlled to approximately equal luminance by controlling at least one of the luminance of the first light and the luminance of the second light.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a display device and an input device.

  Patent Document 1 discloses a display device having a first design that is always displayed by a first light source through a light guide plate, and a second design that is appropriately displayed by a second light source through a light shielding portion.

  Patent Document 2 discloses a display device that selectively displays one of two graphics by switching lighting of a first light source and a second light source.

JP 2004-333361 A JP 2012-163961 A

  However, in the conventional display device disclosed in Patent Document 1, the luminance for displaying the first design may be different from the luminance for displaying the second design. Specifically, in the conventional display device, the first design is displayed by the light of the first light source via the light guide plate, and the second design is displayed by the direct light of the second light source, so that the first design is displayed. The light path for displaying the second design is different from the light path for displaying the second design. For this reason, if the luminance of the first light source and the luminance of the second light source are the same, the first design and the second design are easily displayed with different luminances, and the first design and the second design are displayed. There is a risk of degrading the quality.

  Therefore, the present invention provides a display device capable of improving the display quality of the first design and the second design that are displayed by light of different types of paths.

  The display device according to one embodiment of the present invention guides the first light emitted from the first light source, the second light source, and the first light source, and the guided first light has the shape of the first design. A light guide that displays the first design by reflection at a reflecting portion, and a light-shielding portion that transmits the second light emitted from the second light source through the light-transmitting portion in the shape of the second design and excludes the light-transmitting portion. The mask body that blocks the second light at a portion, the first display brightness displaying the first design, and the second display brightness displaying the second design are the brightness of the first light. And at least one of the brightness | luminances of the said 2nd light is adjusted and it is adjusted to the substantially equal brightness | luminance.

  In addition, a display device according to another embodiment of the present invention guides and guides the first light source and the second light source that are selectively lit, and the first light emitted from the first light source. A light guide that displays the first design by reflecting the first light at a reflecting portion in the shape of the first design, and a second light emitted from the second light source at a light-transmitting portion in the shape of the second design. , A mask body that blocks the second light at a light blocking portion excluding the light transmitting portion, a substrate on which the first light source and the second light source are disposed, the first light source and the second light source A partition wall portion having a light shielding property, and the substrate and the partition wall portion are provided in a first space in which the first light source is provided and a second space in which the second light source is provided. , Connected in a state of blocking the light from one space to the other space There.

  In the display device and the input device of the present invention, it is possible to improve the display quality of the first design and the second design that are displayed by light of different types of paths.

FIG. 1 is a diagram showing an example of a vehicle compartment in which a steering input device according to Embodiment 1 is arranged. FIG. 2 is a diagram illustrating a usage example of the steering input device according to the first embodiment. FIG. 3 is an external perspective view of the display device according to the first embodiment. FIG. 4 is an exploded perspective view of the display device according to the first embodiment. 5 is a cross-sectional view taken along the line VV in FIG. FIG. 6 is a perspective view showing the relationship between the light guide and the first light source for displaying the first design formed on the light guide. FIG. 7 is a perspective view showing the relationship between the mask body and the second light source for displaying the second design formed on the mask body. FIG. 8 is a block diagram illustrating a functional configuration of the display device. FIG. 9 is a view for explaining the movement before and after pressing the switch body. FIG. 10 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the first modification of the first embodiment. 11 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the second modification of the first embodiment. 12 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the third modification of the first embodiment. 13 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the fourth modification of the first embodiment. 14 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the second embodiment. 15 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the first modification of the second embodiment. 16 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the second modification of the second embodiment.

  The display device according to one embodiment of the present invention guides the first light emitted from the first light source, the second light source, and the first light source, and the guided first light has the shape of the first design. A light guide that displays the first design by reflection at a reflecting portion, and a light-shielding portion that transmits the second light emitted from the second light source through the light-transmitting portion in the shape of the second design and excludes the light-transmitting portion. The mask body that blocks the second light at a portion, the first display brightness displaying the first design, and the second display brightness displaying the second design are the brightness of the first light. And at least one of the brightness | luminances of the said 2nd light is adjusted and it is adjusted to the substantially equal brightness | luminance.

  According to this, since at least one of the luminance of the first light and the luminance of the second light is adjusted, the first display luminance for displaying the first design and the second display luminance for displaying the second design. Can be made equivalent. Therefore, it is possible to improve the display quality of the first design and the second design that are displayed with light of different types of paths.

  Furthermore, the luminance of the first light and the second light so that the first display luminance for displaying the first design and the second display luminance for displaying the second design are substantially equal. You may provide the adjustment part which adjusts at least one of a brightness | luminance.

  According to this, the adjustment unit adjusts at least one of the luminance of the first light emitted from the first light source and the luminance of the second light emitted from the second light source, so that the first display luminance for displaying the first design is displayed. And the second display luminance for displaying the second design can be made equal. Therefore, the display quality of the first design and the second design can be improved.

  Further, the adjustment unit makes the supply power to the first light source and the supply power to the second light source different from each other, so that at least the luminance of the first light and the luminance of the second light are at least One may be adjusted.

  For this reason, it is possible to easily adjust at least one of the luminance of the first light and the luminance of the second light.

  Further, the adjustment unit makes the supply current to the first light source and the supply current to the second light source different from each other, thereby at least the luminance of the first light and the luminance of the second light. One may be adjusted.

  For this reason, it is possible to easily adjust at least one of the luminance of the first light and the luminance of the second light.

  Further, the first light source and the second light source may be composed of the same type of light source.

  According to this, the adjustment unit adjusts the supply power or the supply current in the first light source and the second light source that are configured by the same type of light source, and thereby the luminance of the first light and the second light are adjusted. It is easy to adjust at least one of the luminances.

  The adjustment unit may adjust the luminance of the first light to a luminance higher than the luminance of the second light.

  According to this, the adjustment unit can reduce the luminance of the first light for displaying the first design displayed using the light guide, which is likely to be lower in luminance than the second design displayed using transmitted light. The brightness is adjusted to be higher than the brightness of the second light. For this reason, the adjustment part can adjust equally the 1st display brightness which displays a 1st design, and the 2nd display brightness which displays a 2nd design. Therefore, the display quality of the first design and the second design can be improved.

  The adjustment unit may include a lens that is disposed on a side of the first light source that emits the first light and collects the first light.

  According to this, since the light emitted from the first light source can be condensed by disposing the lens on the side of the first light source that emits the first light, the luminance of the first light is set to the second. The brightness can be adjusted to be higher than the brightness of light.

  The adjustment unit may include a dimming unit that is disposed on a side of the second light source that emits the second light and reduces a light amount of the second light.

  According to this, since the light emitted from the second light source can be dimmed by disposing the dimming unit on the side of the second light source that emits the second light, the luminance of the first light can be reduced. The brightness can be adjusted to be higher than the brightness of the two lights.

  The adjusting unit may include a light diffusing unit that is disposed on the second light source on the side emitting the second light and diffuses the second light.

  According to this, since the light emitted from the second light source can be diffused by disposing the light diffusing portion on the side of the second light source that emits the second light, the luminance of the first light is reduced to the second. The brightness can be adjusted to be higher than the brightness of light.

  The adjustment unit may blink the second light source at a duty ratio smaller than the duty ratio of the first light source.

  For this reason, it is possible to easily adjust the luminance of the first light to a luminance higher than that of the second light.

  The first light source may include a first number of light emitting elements, and the second light source may include a number of the light emitting elements different from the first number.

  For this reason, it is possible to easily adjust the luminance of the first light and the luminance of the second light.

  Further, the apparatus may further include a substrate on which the first light source and the second light source are disposed, and the first light source and the second light source may be disposed at positions different from each other in height from the substrate. Good.

  For this reason, it is possible to easily adjust the luminance of the first light and the luminance of the second light.

  Furthermore, it has a partition part which partitions off between the said 1st light source and the said 2nd light source, The wall surface by the side of the said 2nd light source of the said partition part has a dark color part, a frosted part, and an irregular reflection part. Also good.

  For this reason, since the partition part can reduce the reflectance of 2nd light, the brightness | luminance of 2nd light can be made smaller than the brightness | luminance of 1st light. Therefore, it is possible to easily adjust the luminance of the first light to a luminance higher than that of the second light.

  Further, the first design and the second design may be displayed at positions where they overlap each other.

  For this reason, the first design and the second design are displayed even when the first design and the second design are arranged at positions where they overlap each other. The brightness to be adjusted can be adjusted equally to each other. Therefore, the display quality of the first design and the second design can be improved.

  Further, only one of the first light source and the second light source may be lit.

  For this reason, even when either one of the first design and the second design is displayed, the luminance for displaying the first design and the second design is adjusted to be equal to each other, and therefore the same when the display is switched. The display quality of the first design and the second design can be improved.

  Patent Documents 1 and 2 have the following problems.

  Patent Document 1 discloses a configuration in which a first light source and a second light source are respectively accommodated in a first light source accommodating portion and a second light source accommodating portion, that is, a configuration in which a partition is disposed between the first light source and the second light source. Is disclosed. A plurality of first light source accommodating portions and second light source accommodating portions are provided corresponding to each of the plurality of first light sources and the plurality of second light sources, and are integrated with each other to form a light guide accommodating portion. Yes. Since the plurality of first light sources and the plurality of second light sources are disposed on a single substrate, the plurality of first light sources and the plurality of second light source storage units are provided with the plurality of first light sources and the plurality of second light sources. In order to accommodate the second light source, the light guide accommodating portion is disposed on the substrate.

  At this time, since the light guide housing unit is configured by integrating the plurality of first light source housing units and the plurality of second light source housing units, the light guide housing unit is provided between the plurality of first light sources and the plurality of second light sources. There is a high possibility that a dimensional error of the plurality of partition walls is generated. Furthermore, since a plurality of first light sources and a plurality of second light sources are arranged on one substrate, there is a high possibility that the substrate will become large and bend. Therefore, it is difficult to bring all such light guide housing portions and the substrate into close contact with each other. In this way, when the light guide housing part and the substrate are not in close contact with each other and a gap is left, light from the first light source leaks into the second light source housing part, or light from the second light source passes through the first light source housing part As a result, there is a risk that the display quality of the first design and the second design may be impaired. In particular, this light leakage is caused by the light from the first light source causing the second design to be displayed or the light from the second light source in the configuration in which lighting of the first light source and the second light source is switched as in Patent Document 2. The light causes the first design to be displayed.

  Moreover, in patent document 2, since the 2nd light source is not fully isolated, there exists a possibility that the light from a 2nd light source may arrive at the light pipe which conveys the light from a 1st light source. Specifically, an arm is disposed outside the second light source, but the arm may not be able to block light from the second light source. For example, when the arm is formed of a translucent member, or has a gap, an opening, or the like penetrating between a space in which the second light source is disposed and a space in which the light pipe is disposed, the second light source There is a risk that light from the light pipe to the light pipe cannot be effectively blocked. For this reason, when displaying a 2nd graphic with the light from a 2nd light source, there exists a possibility that the 1st graphic displayed with the light of a 1st light source may be reflected.

  Furthermore, since Patent Document 1 and Patent Document 2 do not mention the material of the substrate, if the substrate is made of a light-transmitting material, one of the first light source and the second light source There is a possibility that the light propagates inside the substrate and slightly illuminates the space where the other light source is arranged. Therefore, as described above, the light from the first light source may cause the second design to be displayed, or the light from the second light source may cause the first design to be displayed.

  That is, as described above, the techniques described in Patent Documents 1 and 2 have a problem that it is difficult to selectively display the first design and the second design independently.

  In order to solve the above problems, the present inventors have intensively studied to find a display device having the following configuration.

  The display device according to one embodiment of the present invention further has a light shielding property by partitioning the substrate on which the first light source and the second light source are disposed, and the first light source and the second light source. A partition wall, wherein one of the first light source and the second light source is selectively lit, and the substrate and the partition wall include a first space in which the first light source is provided, and the second light source. The second space in which the light source is provided is connected in a state where light traveling from one space to the other space is blocked.

  For this reason, when the 1st light source is lighted, it can reduce that the 1st light from the 1st light source leaks into the 2nd space from the connection part of a substrate and a partition part. Similarly, when the second light source is turned on, it is possible to reduce the leakage of the second light from the second light source into the first space from the connection portion between the substrate and the partition wall. Therefore, when the first design is displayed, the second design is reflected, and when the second design is displayed, the first design is reflected. it can. Thereby, in a display apparatus, a 1st design and a 2nd design can each be displayed selectively independently.

  Moreover, the said board | substrate and the said partition part may be connected by filling the space between the said board | substrate and the said partition part with the light-shielding filler.

  For this reason, in the connection part of a board | substrate and a partition part, the light which goes to the other space from one space of 1st space and 2nd space can be interrupted | blocked effectively.

  The filler may have a dark surface.

  For this reason, in a filler, it can reduce that the 1st light from a 1st light source or the 2nd light from a 2nd light source is reflected. Therefore, it can reduce that light is irregularly reflected in a filler, and the light which goes to the other space from one space of the 1st space and the 2nd space can be intercepted effectively.

  The filler may be rubber or an adhesive.

  For this reason, the clearance gap between the connection parts of the substrate and the partition wall can be easily filled. Therefore, in the connection part of a board | substrate and a partition part, the light which goes to the other space from one space of 1st space and 2nd space can be interrupted | blocked effectively.

  Moreover, the said board | substrate and the said partition part may be connected by the said partition part being inserted in the recessed part or through-hole provided in the said board | substrate.

  For this reason, the partition part can partition 1st space and 2nd space in the state which minimized the clearance gap in a connection part. Furthermore, since the substrate has a recess or a through-hole, even if there is light propagating through the inside of the substrate, the propagation of light is blocked by the through-hole. Therefore, in the connection part of a board | substrate and a partition part, the light which goes to the other space from one space of 1st space and 2nd space can be interrupted | blocked effectively.

  The substrate may be made of a light shielding material.

  For this reason, it can block | block that light leaks from the board | substrate side and goes to the other space from one space of the 1st space and the 2nd space. In addition, since the substrate has a light-shielding property, it is possible to reduce the possibility that light propagates inside the substrate and illuminates the other space slightly like a general glass epoxy substrate.

  The partition wall may have a dark surface.

  For this reason, irregular reflection can be reduced on the surface of a partition part, and the light which goes to the other space from one space of the 1st space and the 2nd space can be intercepted effectively.

  The substrate may have a dark surface.

  For this reason, irregular reflection can be reduced on the surface of the substrate, and light from one space of the first space and the second space toward the other space can be effectively blocked.

  Furthermore, a lens that is provided on a side that emits light of at least one of the first light source and the second light source and collects the light may be provided.

  For this reason, since at least one of the light from the first light source and the second light source can be collected by the lens, the first light from the first light source is directed toward the second space, or the second light from the second light source. It can reduce that light goes to the 1st space side. Therefore, in the connection part of a board | substrate and a partition part, the light which goes to the other space from one space of 1st space and 2nd space can be interrupted | blocked effectively.

  An input device according to one embodiment of the present invention includes the display device and a switch that detects a pressure on the display device.

  For this reason, when the 1st light source is lighted, it can reduce that the 1st light from the 1st light source leaks into the 2nd space from the connection part of a substrate and a partition part. Similarly, when the second light source is turned on, it is possible to reduce the leakage of the second light from the second light source into the first space from the connection portion between the substrate and the partition wall. Therefore, when the first design is displayed, the second design is reflected, and when the second design is displayed, the first design is reflected. it can. Thereby, in an input device, the 1st design and the 2nd design can be displayed selectively each independently.

  The input device may press the switch by the display device moving to the side where the switch is arranged by the pressing.

  The input device may be connected to the substrate so that the partition wall is movable relative to the substrate while maintaining a state where light is blocked at a connection portion with the substrate by the pressing. Good.

  Hereinafter, an input device including a display device according to one embodiment of the present invention will be specifically described with reference to the drawings.

  Note that each of the embodiments described below shows a specific example of the present invention. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements, steps, order of steps, and the like shown in the following embodiments are merely examples and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

(Embodiment 1)
[1-1. Configuration of steering input device]
First, the configuration of the steering input device 2 according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram illustrating an example of a vehicle compartment in which a steering input device 2 according to Embodiment 1 is arranged. FIG. 2 is a diagram illustrating a usage example of the steering input device 2 according to the first embodiment.

  A steering input device 2 and an in-vehicle device 6 are mounted in a passenger compartment of an automobile 4 (an example of a vehicle) shown in FIG. The steering input device 2 according to the first embodiment includes a steering wheel 8 and a display device 100.

  The steering wheel 8 is for steering the automobile 4. The steering wheel 8 includes a ring-shaped rim 12, a substantially T-shaped spoke 14 integrally formed on the inner peripheral surface of the rim 12, and a horn switch (not shown) disposed at the center of the spoke 14. ) And a horn switch cover 16 for covering.

  The display device 100 is for operating the in-vehicle device 6 and is disposed, for example, on the spoke 14 of the steering wheel 8. As shown in FIG. 2, the driver who is the user operates the in-vehicle device 6 by inputting to the display device 100 with the finger 18 (an example of the operation object) of the right hand holding the rim 12. Can do. The configuration of the display device 100 will be described in detail later.

  The in-vehicle device 6 is an audio device for reproducing an optical disc such as a compact disc. The in-vehicle device 6 is disposed in the dashboard 20, for example. The configuration of the in-vehicle device 6 will be described in detail later.

[1-2. Configuration of display device]
Next, the configuration of the display device 100 according to the first embodiment will be described with reference to FIGS. FIG. 3 is an external perspective view of the display device 100 according to the first embodiment. FIG. 4 is an exploded perspective view of the display device 100 according to the first embodiment. 5 is a cross-sectional view taken along the line VV in FIG.

  As shown in FIGS. 3 to 5, the display device 100 according to the first embodiment includes a light guide 114, a mask body 115, a partition wall 117, first light sources 122 and 123, and a second light source 124. And a substrate 118. The display device 100 may further include an outer frame 111, a touch sensor 112, a window frame 113, a pressing unit 116, and a lower frame 119.

  The outer frame 111 is a member that covers the side surface of the display device 100 from the outer peripheral side of the front surface of the display device 100. The outer frame 111 is made of, for example, a material such as resin.

  The touch sensor 112 is a sensor that is arranged on the front surface side (Z-axis direction plus side) of the display device 100 and detects a touch position that is a position touched by the user on the front surface. The touch sensor 112 is disposed on the plus side of the pressing unit 116 in the Z-axis direction, and detects a touch position on the operation surface that is a surface on the plus side of the pressing unit 116 in the Z-axis direction. In addition, the 1st designs 141-146 and the 2nd designs 151-156 which are mentioned later are displayed on the surface of the Z-axis direction plus side of the touch sensor 112. That is, the surface on the plus side in the Z-axis direction of the touch sensor 112 becomes a display surface.

  Note that the touch position may be a position touched by a part of the body such as a user's finger, or may be a position touched by a conductive object. The touch sensor 112 is made of a transparent member. The touch sensor 112 can use various types of touch sensors such as a resistive film type and a capacitance type.

  The window frame 113 is a member that blocks light from a region other than the design formed on the light guide 114. Specifically, the window frame 113 is disposed on the front side of the light guide 114 and has an opening having a rectangular outer shape in a region corresponding to the design. The window frame 113 is made of a light-shielding material (for example, resin). Thereby, in the display apparatus 100, it can reduce that light is radiate | emitted from parts other than the part of the 1st design currently formed in the light emission surface 131a (refer later) of the light guide 114, and it can reduce to the 1st design part The light can be emitted in a limited manner.

  The light guide 114 is a member that emits light (first light) emitted from the first light sources 122 and 123 mounted on the substrate 118 to the front side from a light exit surface substantially parallel to the XY plane. Specifically, the light guide 114 guides the first light emitted from the first light sources 122 and 123, and reflects the guided first light at the reflecting portions having the shapes of the first designs 141 to 146. To display the first designs 141-146. The light guide 114 is made of a transparent material, for example, acrylic resin, polycarbonate resin, or the like.

  Next, a detailed configuration of the light guide body 114 according to Embodiment 1 will be described with reference to FIG.

  FIG. 6 is a perspective view showing a relationship between the light guide 114 and the first light source for displaying the first designs 141 to 146 formed on the light guide 114.

  As shown in FIG. 6, the light guide body 114 includes a light output part 131 and light guide parts 132 and 133.

  The light emission part 131 is a plate-shaped part arrange | positioned substantially parallel to XY plane. The light exit part 131 has a light exit surface 131a that emits light from a surface on the plus side in the Z-axis direction. On the light exit surface 131a, first designs 141 to 146 that indicate an operation target are formed.

  The light guide portions 132 and 133 are plate-like portions that are connected substantially perpendicularly to the light output portion 131 and are arranged substantially parallel to the YZ plane. The light guides 132 and 133 have light incident surfaces 134 and 135 that face the first light sources 122 and 123 and are substantially parallel to the XY plane.

  The light incident surfaces 134 and 135 include a first light incident surface 134 that faces the first light source 122, and a second light incident surface 135 that faces the first light source 123. In the present embodiment, the first light incident surface 134 is disposed at a position facing the three first light sources 122 and is disposed across the region where the three first light sources 122 are disposed. . The second light incident surface 135 is disposed at a position facing the three first light sources 123, and is disposed across the region where the three first light sources 123 are disposed.

  The light guides 132 and 133 are portions of the light guide 114 that guides light that has entered from the light incident surfaces 134 and 135 to the light exit surface 131a. The light guides 132 and 133 are guided to the light exit surface 131a by the first light guide 132 that guides the light entering from the first light entrance surface 134 to the light exit surface 131a and the light that enters from the second light entrance surface 135, respectively. And a second light guide portion 133 for guiding. The 1st light guide part 132 and the 2nd light guide part 133 are arrange | positioned at the both ends in the X-axis direction of the light output part 131, and are arrange | positioned substantially parallel mutually. That is, the second light guide part 133 is disposed on the opposite side to the first light guide part 132 with the light exit surface 131a interposed therebetween.

  The first light guide part 132 and the second light guide part 133 are formed to be bent with respect to the light output part 131. That is, the first light guide part 132 is connected to the light output part 131 via the curved surface part 132a bent about 90 degrees, and the second light guide part 133 is bent about 90 degrees. The light output part 131 is connected via the curved surface part 133a.

  Thus, the light guide 114 is configured to guide the light (first light) emitted from the three first light sources 122 and the three first light sources 123 from the two light guides to the light exit surface 131a. For this reason, even if it is the comparatively wide light emission surface 131a which displays the some design which shows the position which a user touches, it can reduce that the nonuniformity of a brightness | luminance arises in an X-axis direction and a Y-axis direction.

  In addition, each of the first designs 141 to 146 has a reverse V-shaped groove or a reverse V-shaped hole as a reflection portion on the opposite side of the light output surface 131 a of the light output portion 131 as a vertex. It is formed by being formed. That is, each of the first designs 141 to 146 guides the light traveling in the X-axis direction from the light guides 132 and 133 to the light exit part 131 by the reflection part that is an inverted V-shaped groove or an inverted V-shaped hole. Displayed by reflecting to the positive side in the Z-axis direction. Moreover, each of the 1st designs 141-146 is formed in the light emission surface 131a so that the light of the thickness direction of the light guide 114 may be permeate | transmitted. For this reason, the light guide 114 transmits the light from the second light source 124 arranged on the minus side in the Z-axis direction of the light output part 131 to the plus side in the Z-axis direction.

  Next, a detailed configuration of the mask body 115 according to the first embodiment will be described with reference to FIG.

  FIG. 7 is a perspective view showing the relationship between the mask body 115 and the second light source 124 for displaying the second designs 151 to 156 formed on the mask body 115.

  As shown in FIG. 7, the mask body 115 is a substantially square plate-like member, and second designs 151 to 156 that transmit light in the thickness direction (Z-axis direction) of the mask body 115 are formed. The mask body 115 blocks light at portions other than the portions where the second designs 151 to 156 are formed. That is, the mask body 115 is a portion that transmits the second light emitted from the second light source 124 and that has the shape of the second designs 151 to 156 and a portion excluding the light transmitting portion, In the mask body 115 having a light shielding portion that blocks light, the light shielding portion is made of a light shielding material (for example, resin) and the light transmitting portion is made of a light transmitting material (for example, resin).

  The translucent portion of the mask body 115 may be formed in the light shielding portion by a through hole having the shape of the second design. Further, the mask body 115 may be formed by performing coating having a light shielding property on a transparent plate member. In other words, a coating film having a light shielding property is disposed on the surface of the light shielding portion of the mask body 115, and the coating film is not disposed on the surface of the light transmitting portion of the mask body 115. Good.

  The mask body 115 has second designs 151 to 156 formed at positions corresponding to the positions of the second light sources 124a to 124f arranged on the minus side in the Z-axis direction. Between the mask body 115 and the substrate 118 on which the second light sources 124a to 124f are provided, as shown in FIG. 4, a pressing part 116 and a partition part 117, which will be described later, are arranged. Since the second light sources 124a to 124f are separated from each other by the partition wall portion 117, each of the second designs 151 to 156 includes the light (second light) of the corresponding second light sources 124a to 124f among the second light sources 124a to 124f. Light).

  Further, the mask body 115 is disposed on the minus side in the Z-axis direction of the light output portion 131 in a state where it overlaps the light output portion 131 of the light guide 114. The 2nd designs 151-156 are arranged in the position which overlaps with the 1st designs 141-146. That is, the light guide 114 and the mask body 115 are arranged so that the first designs 141 to 146 and the second designs 151 to 156 overlap with each other in the corresponding designs. That is, the first designs 141 to 146 and the second designs 151 to 156 are displayed at positions that overlap each other. Thus, since the area | region in which the 1st designs 141-146 are provided and the area | region in which the 2nd designs 151-156 are provided mutually overlap, it can be said that it is an equivalent area.

  The pressing portion 116 is a member that is disposed on the front side of the switch body 121 mounted on the substrate 118 and presses the switch body 121. The pressing portion 116 is supported by the outer frame 111 on the side surface in the X-axis direction so as to be slidable in the Z-axis direction with respect to the switch main body 121 so that the switch main body 121 can be pressed. The pressing part 116 supports the touch sensor 112, the window frame 113, and the light guide body 114. That is, the touch sensor 112, the window frame 113, and the light guide 114 slide with the slide of the pressing portion 116 in the Z-axis direction. The operation surface on which the pressing unit 116 is pressed has a width larger than the width of the finger of a human hand.

  Further, the pressing portion 116 is provided with a plurality of openings penetrating in the Z-axis direction at positions corresponding to the second designs 151 to 156 of the mask body 115. The plurality of openings have a rectangular outer diameter when viewed from the Z-axis direction. For this reason, the press part 116 permeate | transmits the light of 2nd light source 124a-124f corresponding to the 2nd designs 151-156 in several opening.

  The pressing part 116 is comprised by materials, such as resin, for example.

  The partition wall 117 is a member that is disposed on the substrate 118, partitions the first light sources 122 and 123 and the second light sources 124a to 124f, and has a light shielding property. That is, the partition wall 117 includes at least the first light source 122, the first light source 123, the second light source 124a, the second light source 124b, the second light source 124c, the second light source 124d, the second light source 124e, and the second light on at least the substrate 118. A wall is disposed between each of the light sources 124f, and the light of these light sources is prevented from reaching other than the corresponding design. The wall of the partition wall 117 has a rectangular tube shape corresponding to each of the second light sources 124a to 124f. The partition wall 117 partitions the space on the substrate 118 into a first space S1 in which the first light sources 122 and 123 are provided and a second space S2 in which the second light source 124 is provided. Further, the partition wall 117 may have a dark surface.

  The partition wall 117 is made of a material such as resin.

  The board 118 is a wiring board having a switch body 121, a plurality of first light sources 122 and 123, a plurality of second light sources 124, and a control circuit 125. The switch body 121, the plurality of first light sources 122, 123, and the plurality of second light sources 124 are disposed on the substrate 118, and are mounted on, for example, the main surface of the front surface side (Z-axis direction plus side) of the substrate 118. Yes. The substrate 118 may be made of a light shielding material. The substrate 118 may have a dark surface.

  The switch body 121 is a push-type switch. For this reason, the display device 100 also functions as an input device having the switch body 121.

  The plurality of first light sources 122 and 123 and the plurality of second light sources 124 are arranged on the substrate 118 with the three first light sources 122 arranged on the minus side in the X-axis direction from the switch body 121 and the X-axis than the switch body 121. It has three first light sources 123 arranged on the direction plus side, and six second light sources 124 arranged between the three first light sources 122 and the three first light sources 123. The first light sources 122 and 123 and the second light source 124 are arranged on the substrate 118 at positions separated from each other. The three first light sources 122 are arranged side by side along the Y-axis direction. The three first light sources 123 are arranged side by side along the Y-axis direction. Each of the plurality of first light sources 122 and 123 and the plurality of second light sources 124 is configured by, for example, an LED (Light Emitting Diode). Note that each of the plurality of first light sources 122 and 123 and the plurality of second light sources 124 may be configured by a light emitting element other than an LED, for example, an organic EL (Electro Luminance), a light bulb, or the like. Good.

  Each of the plurality of first light sources 122 and 123 and the plurality of second light sources 124 may be configured by the same type of light sources, for example, the same type of light emitting elements (for example, LEDs). In this case, the same type of light-emitting element is a light-emitting element that emits light with the same luminance when light emission conditions (for example, applied current or magnitude of power) are the same.

  In this case, the number of the first light sources 122 and 123 and the number of the second light sources 124 are six each. Therefore, the brightness of the first light emitted by the first light sources 122 and 123 for displaying the first designs 141 to 146 and the second light emitted by the second light source 124 for displaying the second designs 151 to 156 are displayed. Is the same brightness when the light emission conditions of the first light sources 122 and 123 and the second light source 124 are the same.

  The control circuit 125 controls the operations of the first light sources 122 and 123 and the second light source 124.

  FIG. 8 is a block diagram illustrating a functional configuration of the display device.

  As illustrated in FIG. 8, the control circuit 125 includes an adjustment unit 126 that adjusts the luminance of the first light sources 122 and 123 and the second light source 124.

  The adjustment unit 126 uses at least one of the luminance of the first light emitted from the first light sources 122 and 123 and the luminance of the second light emitted from the second light source 124 to adjust the intensity of the light displaying the first designs 141 to 146. The first display brightness that is the brightness and the second display brightness that is the brightness of the light displaying the second designs 151 to 156 are adjusted to be equal. The adjustment unit 126 adjusts the luminance of each of the first light sources 122 and 123 and the second light source 124 by changing the light emission conditions thereof. For example, the adjusting unit 126 makes the power supplied to the first light sources 122 and 123 different from the power supplied to the second light source 124, thereby at least the luminance of the first light and the luminance of the second light. One may be adjusted. Further, the adjustment unit 126, for example, makes the supply current to the first light sources 122 and 123 different from the supply current to the second light source 124, whereby the brightness of the first light and the brightness of the second light are changed. You may adjust at least one of these.

  In addition, the 2nd designs 151-156 displayed using transmitted light are easy to become bright compared with the 1st designs 141-146 displayed using the light which guided the light guide 114. FIG. For this reason, the adjustment unit 126 may adjust the luminance of the first light emitted from the first light sources 122 and 123 to be higher than the luminance of the second light emitted from the second light source 124. In this case, for example, the adjustment unit 126 may make the power supplied to the first light sources 122 and 123 larger than the power supplied to the second light source 124. For example, the adjustment unit 126 may make the supply current to the first 1122 and 123 larger than the supply current to the second light source 124. For this reason, the adjustment unit 126 can adjust the first display luminance of the first designs 141 to 146 and the second display luminance of the second designs 151 to 156 equally.

  Further, the adjustment unit 126 makes the luminance ratio of the first light and the luminance of the second light different from each other by changing the duty ratio for causing the first light sources 122 and 123 to emit light and the duty ratio for causing the second light source 124 to emit light. At least one of them may be adjusted. For example, the adjustment unit 126 may blink the second light source 124 with a duty ratio smaller than the duty ratio of the first light sources 122 and 123. In this case, it is included that the duty ratio of the first light sources 122 and 123 is 1. That is, the first light sources 122 and 123 include being constantly lit.

  The control circuit 125 switches the function of the switch body 121 to a function corresponding to the position of the first design 141 to 146 or the second design 151 to 156 corresponding to the position detected by the touch sensor 112. For example, if the switch main body 121 is pressed while the touch sensor 112 is detecting the position corresponding to the 1st design 141, the control circuit 125 will receive the input of the right cursor key which the 1st design 141 shows. The other first designs 142 to 146 and the second designs 151 to 156 are similarly switched to accept inputs corresponding to the switched functions.

  The control circuit 125 operates the display device 100 in a plurality of operation modes. For example, the control circuit 125 operates the display device 100 in two types of operation modes: a menu selection mode as the first operation mode and a music player mode as the second operation mode. The control circuit 125 switches the function when the switch body 121 is pressed in accordance with the operation mode switched by a predetermined switching unit. As the predetermined switching means, various switching means such as ON / OFF of other switches, voice recognition, and gesture recognition can be considered.

  Further, the control circuit 125 associates the function to the switch body 121 to be assigned with the function of emitting light by the first light source 122 or 123 or the second light source 124 according to the operation mode. For example, in the first operation mode, the combination of the touch sensor 112 and the switch body 121 is a cross key for moving an item selected for selecting a menu, and for setting the selected item. Functions as a decision key. In the second operation mode, the combination of the touch sensor 112 and the switch body 121 functions as keys for music player song advance, song return, volume increase, volume decrease, playback / stop, and the like.

  Therefore, in the present embodiment, the control circuit 125 selectively turns on one of the first light sources 122 and 123 and the second light source 124 according to the operation mode. Accordingly, the first light sources 122 and 123 and the second light source are displayed so that the first designs 141 to 146 are displayed in the first operation mode, and the second designs 151 to 156 are displayed in the second operation mode. 124 is controlled. Similarly, the control circuit 125 selectively turns on one of the first light sources 122 and 123 and the second light source 124 according to the operation mode, thereby causing the touch sensor 112 to be in the first operation mode. The first designs 141 to 146 are displayed, and in the second operation mode, the first light sources 122 and 123 and the second light sources 122 and 156 are displayed so that the second designs 151 to 156 different from the first designs 141 to 146 are displayed. The light source 124 is controlled.

  Specifically, the control circuit 125 turns on the first light sources 122 and 123 and turns off the second light source 124 in the first operation mode, turns on the second light source 124 in the second operation mode, In addition, the first light sources 122 and 123 are turned off. That is, the control circuit 125 turns on the first light sources 122 and 123 and turns off the second light source 124 depending on whether the operation mode is the first operation mode or the second operation mode. The first state, and the second state where the second light source 124 is turned on and the first light sources 122 and 123 are turned off selectively.

  The control circuit 125 is in a state in which all of the first light sources 122 and 123 and the second light source 124 are turned off when the combination of the touch sensor 112 and the switch body 121 is turned off by an external switch or the like. You may control to.

  The lower frame 119 is a member that holds the substrate 118 while being fixed to the lower end of the outer frame 111. That is, the lower frame 119 is a member that fixes the substrate 118 at the position of the lower end of the outer frame 111.

  As described above, the outer frame 111 supports the touch sensor 112, the window frame 113, the light guide body 114, and the pressing portion 116 that supports the mask body 115 so as to be slidable in the Z-axis direction. Is fixed. For this reason, when the pressing portion 116 slides in the Z-axis direction with respect to the outer frame 111, the distance between the light guide 114 and the substrate 118 in the Z-axis direction changes.

  FIG. 9 is a view for explaining the movement before and after the switch body 121 is pressed. FIG. 9A is a cross-sectional view similar to FIG. 5 showing a state before the switch body 121 is pressed. FIG. 9B is a cross-sectional view showing a state where the switch body 121 is pressed.

  As shown in FIG. 9, when the pressing unit 116 that supports the touch sensor 112, the window frame 113, the light guide body 114, and the mask body 115 slides on the negative side in the Z-axis direction with respect to the outer frame 111, the switch body 121 is It is pressed by the pressing part 116.

[1-3. Effect etc.]
Display device 100 according to the present embodiment includes first light sources 122 and 123, second light source 124, light guide 114, and mask body 115. The light guide 114 guides the first light emitted from the first light sources 122 and 123, and reflects the first light guided by the reflecting portions having the shapes of the first designs 141 to 146, thereby making the first design 141. ~ 146 are displayed. The mask body 115 transmits the second light emitted from the second light source 124 through the light-transmitting portions having the shapes of the second designs 151 to 156, and blocks the second light at the light-shielding portions excluding the light-transmitting portions. The first display brightness displaying the first designs 141 to 146 and the second display brightness displaying the second designs 151 to 156 are adjusted by the brightness of the first light and the brightness of the second light. As a result, the brightness is adjusted to be approximately equal.

  That is, in the display device 100, since at least one of the luminance of the first light and the luminance of the second light is adjusted, the first display luminance of the first designs 141 to 146 and the second designs 151 to 156 are adjusted. The second display luminance can be made equal. Therefore, the display quality of the 1st designs 141-146 and the 2nd designs 151-156 displayed with the light of a different kind of course can be raised.

  In addition, display device 100 according to the present embodiment further includes adjustment unit 126. The adjustment unit 126 has at least one of the luminance of the first light and the luminance of the second light, and the first display luminance of the first designs 141 to 146 and the second display luminance of the second designs 151 to 156 are the same. Adjust so that

  That is, the adjustment unit 126 adjusts at least one of the luminance of the first light emitted from the first light sources 122 and 123 and the luminance of the second light emitted from the second light source 124, so that the first designs 141 to 146 1 display brightness and the 2nd display brightness of the 2nd designs 151-156 can be made equivalent. Therefore, the display quality of the first designs 141 to 146 and the second designs 151 to 156 can be improved.

  In the display device 100 according to the present embodiment, the adjustment unit 126 changes the power supplied to the first light sources 122 and 123 and the power supplied to the second light source 124 from each other, so that the first light At least one of the brightness and the brightness of the second light is adjusted. In the display device 100 according to the present embodiment, the adjusting unit 126 makes the first light source 122 and 123 supply current different from the second light source 124 by making the supply current to the first light source 122 and 123 different from each other. At least one of the brightness and the brightness of the second light is adjusted. For this reason, it is possible to easily adjust at least one of the luminance of the first light and the luminance of the second light.

  In the display device 100 according to the present embodiment, the first light sources 122 and 123 and the second light source 124 are configured by the same light source. In other words, the adjustment unit 126 adjusts the power supply or current in the first light sources 122 and 123 and the second light source 124 that are configured by the same light source, whereby the luminance of the first light and the second light are adjusted. It is easy to adjust at least one of the luminances.

  In display device 100 according to the present embodiment, adjustment unit 126 adjusts the luminance of the first light to a luminance higher than the luminance of the second light. That is, the adjustment unit 126 displays the first designs 141 to 146 to be displayed using the light guide 114, which tends to have lower luminance than the second designs 151 to 156 to display using the transmitted light. The luminance of one light is adjusted to a luminance higher than that of the second light. For this reason, the adjustment unit 126 can adjust the first display luminance of the first designs 141 to 146 and the second display luminance of the second designs 151 to 156 equally. Therefore, the display quality of the first designs 141 to 146 and the second designs 151 to 156 can be improved.

  In the display device 100 according to the present embodiment, the adjustment unit 126 blinks the second light source 124 with a duty ratio smaller than the duty ratio of the first light sources 122 and 123. For this reason, it is possible to easily adjust the luminance of the first light to a luminance higher than that of the second light.

  In addition, display device 100 according to the present embodiment further includes partition wall 117. The partition wall 117 partitions the first light sources 122 and 123 and the second light source 124. The wall surface of the partition wall 117 on the second light source 124 side has a dark color part, a matte part, and an irregular reflection part. For this reason, since the partition part 117 can reduce the reflectance of 2nd light, the brightness | luminance of 2nd light can be made smaller than the brightness | luminance of 1st light. Therefore, it is possible to easily adjust the luminance of the first light to a luminance higher than that of the second light.

  Moreover, in the display device 100 according to the present embodiment, the first design 141 to 146 and the second design 151 to 156 are displayed at positions that overlap each other. For this reason, even if the first design 141 to 146 and the second design 151 to 156 are arranged at positions where they overlap each other and are displayed with different luminances, even if the difference is particularly noticeable, The luminance for displaying the first design 141 to 146 and the second design 151 to 156 can be adjusted equally to each other. Therefore, the display quality of the first designs 141 to 146 and the second designs 151 to 156 can be improved.

  Further, in display device 100 according to the present embodiment, only one of first light sources 122 and 123 and second light source 124 is selected and lit. For this reason, even when any one of the first designs 141 to 146 and the second designs 151 to 156 is selected and displayed, the luminance for displaying the first designs 141 to 146 and the second designs 151 to 156 is high. Since they are adjusted to be equal to each other, even when the display is switched, the same luminance is obtained, and the display quality of the first design 141 to 146 and the second design 151 to 156 can be improved.

[1-4. Modification of Embodiment 1]
In the first embodiment, the adjustment unit 126 changes the supply power, supply current, or light emission duty ratio of the first designs 141 to 146 between the first light sources 122 and 123 and the second light source 124. Although 1 display brightness | luminance and 2nd display brightness | luminance of the 2nd designs 151-156 were adjusted to the substantially equal brightness | luminance, it is not restricted to this. Hereinafter, a modification in the case where luminance adjustment is not performed using the adjustment unit 126 will be described.

[1-4-1. Modification 1 of Embodiment 1]
A configuration of a display device 100A according to Modification 1 will be described with reference to FIG.

  FIG. 10 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the first modification of the first embodiment.

  For example, the display device 100A illustrated in FIG. 10 includes lenses 161 and 162 that are arranged on the side of the first light sources 122 and 123 that emits the first light and collect the first light as the adjustment unit. That is, the adjustment unit may include lenses 161 and 162 that adjust the luminance of the first light. In this case, the second light source 124 may not be provided with a lens. Since the configuration other than the lenses 161 and 162 is the same as that of the first embodiment, the description thereof is omitted.

  The lenses 161 and 162 are, for example, a convex lens and a Fresnel lens made of a transparent material such as resin or glass.

  According to the display device 100A according to the first modification of the first embodiment, the first light sources 122 and 123 emit light from the first light sources 122 and 123 by disposing the lenses 161 and 162 on the first light emitting side. The collected light can be collected. For this reason, the brightness | luminance of 1st light can be adjusted to a brightness | luminance higher than the brightness | luminance of 2nd light.

  In the display device 100A according to the first modification of the first embodiment, the luminance of the first light is adjusted by the lenses 161 and 162 without adjusting the luminance by the adjusting unit 126 of the first embodiment. The luminance may be adjusted by combining both the adjustment unit 126 and the lenses 161 and 162 of the first embodiment.

  Further, although the lenses 161 and 162 are arranged on the first light source 122 and 123 on the side of emitting the first light, the lenses 161 and 162 are not arranged on the first light source 122 and 123, and the second light source 124 is arranged. You may arrange | position the lens which condenses 2nd light in the side which emits 2nd light.

  In addition, the first lens that condenses the first light and the second light are condensed on the first light source 122 and 123 that emit the first light and the second light source 124 that emits the second light. Each of the second lenses may be arranged. In this case, the first lens and the second lens are lenses having different degrees of condensing, that is, focal lengths.

  As described above, in the first modification of the first embodiment, the lens that collects light is disposed on at least one of the first light source that emits the first light and the second light source that emits the second light. Thus, the brightness of the light on the side where the lens is arranged is adjusted.

[1-4-2. Modification 2 of Embodiment 1]
A configuration of a display device 100B according to the second modification of the first embodiment will be described with reference to FIG.

  11 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the second modification of the first embodiment.

  For example, the display device 100B illustrated in FIG. 11 includes a dimming unit 170 that is arranged on the side of the second light source 124 that emits the second light and that reduces the amount of the second light, as the adjustment unit. That is, the adjustment unit may include a dimming unit 170 that adjusts the luminance of the second light. In this case, the first light sources 122 and 123 do not have to be provided with a light reduction unit. Note that the configuration other than the dimming unit 170 is the same as that of the first embodiment, and a description thereof will be omitted.

  The light reduction unit 170 is made of a material that transmits light by a predetermined light amount (a material that is entirely colored with smoke). That is, the light reduction unit 170 is made of a transparent material in which fine particles that absorb light are diffused. The dimming unit 170 is, for example, an ND (Neutral Density) filter.

  According to the display device 100B according to the second modification of the first embodiment, the light emitted from the second light source 124 is reduced by disposing the dimming unit 170 on the second light emitting side of the second light source 124. Can be lighted. For this reason, the brightness | luminance of 1st light can be adjusted to a brightness | luminance higher than the brightness | luminance of 2nd light.

  In addition, a light diffusing unit that diffuses light may be disposed on the side of the second light source 124 that emits the second light, instead of the dimming unit 170. That is, the adjustment unit may include a light diffusion unit that adjusts the luminance of the second light.

  The light diffusing section may be made of a transparent material in which fine particles that scatter (diffuse reflection) light are diffused, or may be made of a lens that diffuses light, that is, a concave lens.

  Even in this case, the light emitted from the second light source 124 can be diffused by disposing the light diffusing section on the second light source 124 on the side emitting the second light. For this reason, the brightness | luminance of 1st light can be adjusted to a brightness | luminance higher than the brightness | luminance of 2nd light.

  In the display device 100B according to the second modification of the first embodiment, the luminance of the second light is adjusted by the light reduction unit 170 or the light diffusion unit without adjusting the luminance by the adjustment unit 126 of the embodiment. However, the luminance may be adjusted by combining both the adjustment unit 126 of the first embodiment and the light reduction unit 170 or the light diffusion unit.

  In addition, although the dimming unit 170 or the light diffusing unit is arranged on the second light source 124 on the side of emitting the second light, the first dimming unit 170 or the light diffusing unit is not arranged in the second light source 124. You may arrange | position the light-diffusion part 170 which attenuates 1st light, or the light-diffusion part which diffuses 1st light in the side which emits 1st light of the light sources 122 and 123. FIG.

  The first light source 122, 123 is provided with a first dimming part for dimming the first light or a first light diffusing part for diffusing the first light on the side emitting the first light, You may arrange | position the 2nd light-diffusion part which diffuses the 2nd light part which attenuate | deviates 2nd light, or the 2nd light-diffusion part which diffuses 2nd light in the side which emits 2nd light of the 2 light sources 124. In this case, the first dimming portion and the second dimming portion are materials that are different from each other in the degree of dimming, for example, the density per unit area of the fine particles that absorb light. Further, in this case, the first light diffusing unit and the second light diffusing unit are materials having different degrees of light diffusion, for example, density per unit area of fine particles that scatter light, or focal lengths of each other. Different concave lenses. The unit area referred to here is obtained, for example, based on the area of each dimming unit or each light diffusing unit when each dimming unit or each light diffusing unit is viewed in plan from the optical axis of each light source. .

  As described above, in the second modification of the first embodiment, the dimming unit or the light diffusing unit is disposed on at least one of the side of the first light source that emits the first light and the side of the second light source that emits the second light. Thus, at least one of the luminance of the first light and the luminance of the second light is adjusted.

[1-4-3. Modification 3 of Embodiment 1]
A configuration of a display device 100C according to Modification 3 of Embodiment 1 will be described with reference to FIG.

  12 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the third modification of the first embodiment.

  For example, the display device 100C illustrated in FIG. 12 includes twice as many first light sources 122C and 123C as the first light sources 122 and 123 of the display device 100 of the embodiment. That is, the first light sources 122C and 123C have twelve light emitting elements (LEDs), though not all are illustrated. On the other hand, the 2nd light source 124 is the same as the 2nd light source 124 of the display apparatus 100 of Embodiment 1, and has six light emitting elements (LED). That is, the second light source 124 has a number of light emitting elements different from the number of light emitting elements of the first light sources 122C and 123C. In the display device 100C of Modification 3, the number of light emitting elements of the first light sources 122C and 123C is larger than the number of light emitting elements of the second light source 124.

  As described above, in the display device 100C according to the third modification of the first embodiment, the first light sources 122C and 123C and the second light source 124 differ in the number of light emitting elements constituting each of the first light sources. And / or the brightness of the second light can be adjusted.

  In addition, even if the brightness | luminance of 1st light and the brightness | luminance of 2nd light are adjusted by making the number of the light emitting elements which a 2nd light source has more than the number of the light emitting elements which a 1st light source has, it adjusts. Good.

  In addition, the luminance of the first light is not limited by adjusting the luminance by the number of the light emitting elements, but by adopting light emitting elements having different maximum luminances that can be emitted by the first light source and the second light source, and , At least one of the luminances of the second light may be adjusted. That is, under the same light emission conditions, for example, if light emitting elements having different light emission efficiencies are employed, each light emitting element emits light with different luminance. That is, by utilizing this, for example, light emitting elements having different performances such as luminous efficiency and maximum luminance may be used for the first light source and the second light source, respectively.

[1-4-4. Modification 4 of Embodiment 1]
A configuration of a display device 100D according to the fourth modification of the first embodiment will be described with reference to FIG.

  13 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the fourth modification of the first embodiment.

  For example, the first light sources 122 and 123 included in the display device 100D illustrated in FIG. 13 are arranged at positions where the height from the substrate 118 is higher than the first light sources 122 and 123 of the display device 100 of the first embodiment. Has been. Specifically, the first light sources 122 and 123 are disposed on the bases 181 and 182 disposed on the substrate 118. Thereby, the position where the first light sources 122 and 123 are arranged is higher than the position where the second light source 124 is arranged. As described above, the first light sources 122 and 123 are made higher than the second light source 124 from the substrate 118, so that the first light sources 122 and 123 are made higher than the second light source 124 by the first designs 141 to 146 and the second design. It can be brought close to the display surface on which 151 to 156 are displayed. Therefore, the brightness | luminance of the 1st light effective in order to display the 1st designs 141-146 can be adjusted by adjusting the height of the stand 181 and 182. Thereby, the first display luminance and the second display luminance can be adjusted to substantially the same luminance.

  In FIG. 13, the configuration example in which the first light source is arranged on the substrate and the second light source is arranged directly on the substrate via the table has been described. However, the present invention is not limited thereto, and the first light source is arranged directly on the substrate. The second light source may be arranged on the substrate via a table. That is, the first light source and the second light source need only be arranged at positions different from each other in height from the substrate.

  Moreover, what is necessary is just to set it as the structure which changes the distance of each light source to a display surface not only to the structure which changes height through a stand. For example, the distance of each light source to the display surface may be changed by changing the shape of the substrate by providing unevenness.

[1-4-5. Modification 5 of Embodiment 1]
Next, Modification 5 of Embodiment 1 will be described.

  Instead of the configuration for adjusting at least one of the luminance of the first light and the luminance of the second light in the display devices 100 and 100A to 100D according to the first embodiment and the first to fourth modifications of the first embodiment. Alternatively, at least one of the luminance of the first light and the luminance of the second light may be adjusted by providing a dark color portion, a matte portion, and a diffuse reflection portion on the wall surface of the partition wall portion 117 on the second light source 124 side. That is, the wall surface of the partition wall 117 on the second light source 124 side may be made of a dark material, may be made of a matte material, or made of a material that irregularly reflects light. May be. In this case, it is assumed that the dark color portion, the matte portion, and the irregular reflection portion are not provided on the wall surface on the first light source 122, 123 side. Here, the dark color is, for example, a color such as black, dark blue, or brown, and a color whose reflectance is lower than a predetermined reflectance.

  Thereby, part of the second light is absorbed by the wall surface of the partition wall 117 on the second light source 124 side or is irregularly reflected, so that the reflectance of the second light can be reduced. Therefore, it is possible to easily adjust the luminance of the second light effective for displaying the second designs 151 to 156 to a luminance lower than the luminance of the first light.

  In contrast to the above, a dark color portion, a matte portion, and an irregular reflection portion may be provided on the wall surface of the partition wall portion 117 on the first light source 122, 123 side. Similarly, in this case, it is assumed that the dark color portion, the matte portion, and the irregular reflection portion are not provided on the wall surface on the second light source 124 side.

(Embodiment 2)
A second embodiment will be described.

[2-1. Constitution]
The display device 100E according to the second embodiment differs from the display device 100 according to the first embodiment in the connection portion between the partition wall portion 117 and the substrate 118.

  The board | substrate 118 and the partition part 117 are connected in the state which interrupted | blocked the light which goes to the other space from one space in 1st space S1 and 2nd space S2. Specifically, as shown in FIG. 14, the substrate 118 and the partition wall 117 are connected by filling a space 160 between the substrate 118 and the partition wall 117 with a light-shielding filler 160. Filler 160 may have a dark surface. Here, the dark color is, for example, a color such as black, dark blue, or brown, and a color whose reflectance is lower than a predetermined reflectance. The filler 160 is made of, for example, rubber or an adhesive.

[2-2. Effect etc.]
A display device 100E including the display device according to the present embodiment includes first light sources 122 and 123, a second light source 124, a light guide 114, a mask body 115, a substrate 118, and a partition wall 117. One of the first light sources 122 and 123 and the second light source 124 is selectively lit. The light guide 114 guides the first light emitted from the first light sources 122 and 123, and reflects the first light guided by the reflecting portions having the shapes of the first designs 141 to 146, thereby making the first design 141. ~ 146 are displayed. The mask body 115 transmits the second light emitted from the second light source 124 through the light-transmitting portions having the shapes of the second designs 151 to 156, and blocks the second light at the light-shielding portions excluding the light-transmitting portions. The substrate 118 is provided with first light sources 122 and 123 and a second light source 124. The partition wall 117 partitions the first light sources 122 and 123 and the second light source 124 and has a light shielding property. The substrate 118 and the partition wall 117 block light traveling from one space to the other space in the first space S1 in which the first light sources 122 and 123 are provided and the second space S2 in which the second light source 124 is provided. Connected in a state.

  For this reason, when the 1st light sources 122 and 123 are lighting, reducing that the 1st light from the 1st light sources 122 and 123 leaks into the 2nd space S2 from the connection part of substrate 118 and partition part 117. Can do. Similarly, when the second light source 124 is turned on, leakage of the second light from the second light source 124 from the connection portion of the substrate 118 and the partition wall 117 to the first space S1 can be reduced. Therefore, when the first designs 141 to 146 are displayed, the second designs 151 to 156 are reflected, and when the second designs 151 to 156 are displayed, the first designs 141 to 156 are displayed. It can reduce that 146 is reflected. Thereby, in the display device 100E including the display device, the first design 141 to 146 and the second design 151 to 156 can be selectively displayed independently, and the display quality can be improved.

  In the display device 100E including the display device according to this embodiment, the substrate 118 and the partition wall portion 117 are connected by filling the space between the substrate 118 and the partition wall portion 117 with a light-shielding filler 160. Has been. For this reason, in the connection part of the board | substrate 118 and the partition part 117, the light which goes to the other space from one space of 1st space S1 and 2nd space S2 can be interrupted | blocked effectively.

  Further, in display device 100E including the display device according to this embodiment, filler 160 has a dark surface. For this reason, in the filler 160, it can reduce that the 1st light from the 1st light sources 122 and 123 or the 2nd light from the 2nd light source 124 is reflected. Therefore, it can reduce that light is irregularly reflected in the filler 160, and the light which goes to the other space from one space of 1st space S1 and 2nd space S2 can be interrupted | blocked effectively.

  In the display device 100E including the display device according to this embodiment, the filler 160 is rubber or an adhesive. For this reason, it is possible to easily fill a gap in the connection portion between the substrate 118 and the partition wall 117. Therefore, in the connection part of the board | substrate 118 and the partition part 117, the light which goes to the other space from one space of 1st space S1 and 2nd space S2 can be interrupted | blocked effectively.

  In the display device 100E including the display device according to this embodiment, the substrate 118 is formed using a light-blocking material. For this reason, it can block | block that light leaks from the board | substrate 118 side, and goes to the other space from one space of 1st space S1 and 2nd space S2. In addition, since the substrate 118 has a light shielding property, it is possible to reduce the possibility that light propagates inside the substrate and illuminates the other space slightly like a general glass epoxy substrate.

  In the display device 100E including the display device according to this embodiment, the partition wall portion 117 has a dark surface. For this reason, irregular reflection can be reduced on the surface of the partition wall portion 117, and light from one space of the first space S1 and the second space S2 toward the other space can be effectively blocked.

  In the display device 100E including the display device according to this embodiment, the substrate 118 has a dark surface. For this reason, irregular reflection can be reduced on the surface of the substrate 118, and light traveling from one space of the first space S1 and the second space S2 to the other space can be effectively blocked.

[2-3. Modification of Embodiment 2]
[2-3-1. Modification 1 of Embodiment 2]
A configuration of a display device 100F according to the first modification of the second embodiment will be described with reference to FIG.

  15 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the first modification of the second embodiment.

  For example, in addition to the configuration of the display device 100 according to the embodiment, the display device 100F illustrated in FIG. 15 is disposed on the side of the first light sources 122 and 123 that emits the first light, and collects the first light. Lenses 161 and 162 are provided. In this case, the second light source 124 may not be provided with a lens as shown in FIG. 15 or may be provided with a lens similar to the lenses 161 and 162. Since the configuration other than the lenses 161 and 162 is the same as that of the embodiment, the description thereof is omitted.

  The lenses 161 and 162 are, for example, a convex lens and a Fresnel lens made of a transparent material such as resin or glass.

  Further, although the lenses 161 and 162 are arranged on the first light source 122 and 123 on the side of emitting the first light, the lenses 161 and 162 are not arranged on the first light source 122 and 123, and the second light source 124 is arranged. You may arrange | position the lens which condenses 2nd light in the side which emits 2nd light.

  As described above, by providing a lens for condensing the light on at least one of the first light sources 122 and 123 and the second light source 124, at least one of the first light sources 122 and 123 and the second light source 124 is provided. One light can be collected by the lens. For this reason, it can reduce that the 1st light of the 1st light sources 122 and 123 goes to the 2nd space S2 side, or the 2nd light of the 2nd light source 124 goes to the 1st space S1 side. Therefore, in the connection part of the board | substrate 118 and the partition part 117, the light which goes to the other space from one space of 1st space S1 and 2nd space S2 can be interrupted | blocked effectively.

[2-3-2. Modification 2 of Embodiment 2]
In the second embodiment and the first modification of the second embodiment, the substrate 118 and the partition wall portion 117 are connected by filling the space between the substrate 118 and the partition wall portion 117 with a filler 160 having a light shielding property. However, it is not limited to this.

  Hereinafter, the configuration of the display device 100G according to the second modification of the second embodiment will be described with reference to FIG.

  16 is a cross-sectional view corresponding to the VV cross-sectional view of FIG. 3 in the display device according to the second modification of the second embodiment.

  The display device 100F according to the second modification of the second embodiment is different from the display device 100 according to the second embodiment in the configuration of the partition wall portion 117A and the substrate 118A. Therefore, the configuration of the partition wall 117A and the substrate 118A will be described. In addition, since the other structure of the display apparatus 100F of the modification 1 of Embodiment 2 is the same as that of the display apparatus 100 of Embodiment, detailed description is abbreviate | omitted.

  The partition wall 117A has a penetrating portion 191 whose tip penetrates the substrate 118A at the connection portion with the substrate 118A.

  The substrate 118A has a through hole 192 that penetrates the through portion 191 of the partition wall 117A.

  As described above, the substrate 118A and the partition wall portion 117A are connected by inserting the through portion 191 of the partition wall portion 117A into the through hole 192 provided in the substrate 118A. For this reason, the partition wall portion 117A can easily partition the first space S1 and the second space S2 in a state where the gap at the connection portion is minimized. Further, since the substrate 118A has the through hole 192, even if there is light propagating through the substrate 118A, the through hole 192 blocks light propagation. Therefore, in the connection part of the board | substrate 118A and the partition part 117A, the light which goes to the other space from one space of 1st space S1 and 2nd space S2 can be interrupted | blocked effectively.

  The partition wall portion 117A is configured to penetrate the through hole 192 of the substrate 118A by the penetration portion 191, but may be configured not to penetrate. In other words, the partition wall portion may have a configuration in which the partition wall portion is inserted, that is, fitted, without penetrating into a recess such as a groove provided in the substrate at a connection portion with the substrate. Even in this case, it is possible to obtain the same effects as those of the substrate 118A and the partition wall portion 117A of the first modification of the second embodiment.

[2-3-3. Modification 3 of Embodiment 2]
In the second embodiment and the first and second modifications of the second embodiment, the outer frame 111 has the touch sensor 112, the window frame 113, the light guide 114, and the pressing portion 116 that supports the mask body 115 in the Z-axis direction. Although it is configured to be slidably supported and the substrate 118 is fixed at the lower end position, the present invention is not limited to this, and the outer frame 111, the touch sensor 112, the window frame 113, the light guide 114, The mask body 115 and the pressing part 116 may be configured to be fixed to each other. In this case, the switch body 121 may not be provided on the substrate 118 but may be provided on another substrate provided on the negative side of the substrate 118 in the Z-axis direction. That is, in the display device in this case, when the display device is pressed to the negative side in the Z-axis direction, the switch is provided on another substrate by sliding to the negative side in the Z-axis direction via another support member. Press the body.

[2-3-4. Modification 4 of Embodiment 2]
In the second embodiment and the first and second modifications of the second embodiment, the substrates 118 and 118A and the partition walls 117 and 117A are configured to be fixed in relative positions. When pressed, the partition may move in a direction approaching the substrate together with the touch sensor 112, the window frame 113, the light guide 114, the mask body 115, and the pressing portion 116. In this case, the partition wall portion may move relative to the substrate while maintaining the state where light is blocked at the connection portion with the substrate by pressing.

  For example, in the case where a filler is provided between the partition wall and the substrate, when the partition wall moves in a direction approaching the substrate, the filler is compressed so that the partition wall is allowed to move. The partition wall and the substrate may be connected via a filler. For example, when the end of the partition wall is inserted into the recess or the through hole of the substrate, the end of the partition wall is inserted into the recess or the through hole of the substrate. May be connected to the substrate so as to be slidable in the insertion direction.

[3. Others]
According to the display devices 100 and 100A to 100G according to the first and second embodiments, the first to fifth modifications of the first embodiment, and the first to fourth modifications of the second embodiment, the outer shape of the opening of the window frame 113 However, the present invention is not limited thereto, and may be circular, star-shaped, or other various shapes. Further, the outer shape of the opening of the pressing portion 116 and the shape of the wall of the partition wall portion 117 are not limited to a rectangle, but may be a shape corresponding to the outer shape of the opening of the window frame 113. Thereby, also in the area | region around the 1st designs 141-146 and the 2nd designs 151-156, according to the shape of the opening of the window frame 113, the opening of the press part 116, and the wall of the partition part 117, it is various. It can be displayed in shape.

  In the above description, the switch body 121 is provided in the display device 100. However, the present invention is not limited to this. For example, the first design 141 to 146 and the first design 141 and 146 are switched by switching the light source without including the switch body 121. It is good also as a structure which has only the function to display the 2 designs 151-156 selectively.

  According to the display devices 100 and 100A to 100G according to the first and second embodiments, the first to fifth modifications of the first embodiment, and the first to fourth modifications of the second embodiment, the first light sources 122 and 123 and the first The two light sources 124 are each configured by a plurality of light emitting elements. However, the present invention is not limited thereto, and each of the two light sources 124 may be configured by one light emitting element.

  In display devices 100 and 100A to 100D according to Embodiment 1 and Modifications 1 to 5 of Embodiment 1, adjustment is adjusted for at least one of the luminance of the first light and the luminance of the second light. In the display devices 100E to 100G according to the second embodiment and the first to fourth modifications of the second embodiment, at least the luminance of the first light and the luminance of the second light are the same as in the first embodiment. One of the adjustments may be adjusted, and unlike the first embodiment, the adjustment of at least one of the luminance of the first light and the luminance of the second light may not be adjusted.

  While the display device and the input device according to one or more aspects of the present invention have been described based on the embodiments, the present invention is not limited to these embodiments. Unless it deviates from the gist of the present invention, one or more of the present invention may be applied to various modifications that can be conceived by those skilled in the art, or forms constructed by combining components in different embodiments. It may be included within the scope of the embodiments.

  The present invention is useful as a display device, an input device, and the like that can improve the display quality of the first design and the second design that are displayed by light of different types of paths.

2 Steering input device 4 Automobile 6 In-vehicle device 8 Steering wheel 12 Rim 14 Spoke 16 Horn switch cover 18 Finger 20 Dashboard 100, 100A to 100G Display device 111 Outer frame 112 Touch sensor 113 Window frame 114 Light guide 115 Mask body 116 Press Portions 117, 117A Bulkhead 118, 118B Substrate 119 Lower frame 121 Switch body 122, 123 First light source 124, 124a to 124f Second light source 125 Control circuit 126 Adjuster 131 Light exit 131a Light exit surface 132 First light guide 132a Curved portion 133 Second light guide portion 133a Curved portion 134 First light incident surface 135 Second light incident surfaces 141-146 First design 151-156 Second design 160 Fillers 161, 162 Lens 170 Light reduction portion 181 182 units 191 Portion 192 through hole S1 first space S2 second space

Claims (24)

A first light source;
A second light source;
A light guide for guiding the first light emitted from the first light source, and displaying the first design by reflecting the guided first light at a reflecting portion of the shape of the first design;
A mask body that transmits the second light emitted from the second light source in the light-transmitting portion of the shape of the second design and blocks the second light in the light-shielding portion excluding the light-transmitting portion;
The first display brightness displaying the first design and the second display brightness displaying the second design are at least one of the brightness of the first light and the brightness of the second light. A display device that has been adjusted to have approximately the same brightness. further,
At least one of the luminance of the first light and the luminance of the second light so that the first display luminance for displaying the first design and the second display luminance for displaying the second design are substantially equal. The display device according to claim 1, further comprising an adjustment unit that adjusts the angle. The adjustment unit varies the supply power or supply current to the first light source and the supply power or supply current to the second light source, so that the brightness of the first light and the second light are different. The display device according to claim 2, wherein at least one of the luminances of the display is adjusted. The display device according to claim 3, wherein the first light source and the second light source are configured by the same type of light source. The display device according to claim 2, wherein the adjustment unit adjusts the luminance of the first light to a luminance higher than the luminance of the second light. The display device according to claim 5, wherein the adjustment unit includes a lens that is disposed on a side of the first light source that emits the first light and collects the first light. The adjustment unit is disposed on the side of the second light source that emits the second light, and (i) a dimming unit that reduces the amount of the second light, or (ii) diffuses the second light. The display device according to claim 5, comprising a light diffusing unit. The display device according to claim 5, wherein the adjustment unit blinks the second light source at a duty ratio smaller than a duty ratio of the first light source. The first light source has a first number of light emitting elements;
The display device according to claim 1, wherein the second light source has a number of the light emitting elements different from the first number. further,
A substrate on which the first light source and the second light source are disposed;
The display device according to claim 1, wherein the first light source and the second light source are arranged at positions different from each other in height from the substrate. The display device according to claim 1, wherein the first design and the second design are displayed at positions where they overlap each other. The display device according to any one of claims 1 to 11, wherein only one of the first light source and the second light source is lit. further,
A substrate on which the first light source and the second light source are disposed;
Partitioning between the first light source and the second light source and having a light-shielding partition,
One of the first light source and the second light source is selectively lit,
The substrate and the partition are connected in a state where light from one space to the other space is blocked in a first space in which the first light source is provided and a second space in which the second light source is provided. The display device according to any one of claims 1 to 12. The display device according to claim 13, wherein the substrate and the partition wall portion are connected by filling a space between the substrate and the partition wall portion with a light-shielding filler. The display device according to claim 14, wherein the filler has a dark surface. The display device according to claim 14, wherein the filler is rubber or an adhesive. The display device according to claim 13, wherein the substrate and the partition wall are connected by inserting the partition wall into a recess or a through hole provided in the substrate. The display device according to claim 13, wherein the substrate is made of a light-shielding material. The display device according to claim 13, wherein at least one of the partition wall and the substrate has a dark surface. The display device according to any one of claims 13 to 19, wherein a wall surface of the partition wall on the second light source side includes a dark color portion, a matte portion, and an irregular reflection portion. A first light source and a second light source that are selectively lit,
A light guide for guiding the first light emitted from the first light source, and displaying the first design by reflecting the guided first light at a reflecting portion of the shape of the first design;
A mask body that transmits the second light emitted from the second light source in the light-transmitting portion of the shape of the second design and blocks the second light in the light-shielding portion excluding the light-transmitting portion;
A substrate on which the first light source and the second light source are disposed;
Partitioning between the first light source and the second light source and having a light-shielding partition,
The substrate and the partition are connected in a state where light from one space to the other space is blocked in a first space in which the first light source is provided and a second space in which the second light source is provided. The display device. A display device according to any one of claims 13 to 21,
An input device comprising: a switch that detects a pressure on the display device. The input device according to claim 22, wherein the display device presses the switch by moving to the side where the switch is disposed by the pressing. The input according to claim 22, wherein the partition wall is connected to the substrate so as to be movable relative to the substrate while maintaining a state where light is blocked at a connection portion with the substrate by the pressing. apparatus.

Images