JP2017116851A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device in which solidity and depth feeling increase without increasing thickness of a plate.SOLUTION: A display device includes a paint layer 3 provided on one side surface of a substrate 2, a display pattern part 5 comprising a slit 4 provided at the paint layer, a recess part 6 of polygonal shape formed on the other side surface 22 on the side opposite to one side surface 21 of the substrate, a metal deposition film part 7 provided on the other side surface containing the recess part of the substrate, and a light source part which emits light toward the substrate and the metal deposition film part along the other side surface direction. The recess part is formed outside a visible region which is visible by a view point of seeing the other side surface of the display pattern part along normal direction of one side surface.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device.

  Conventionally, a light-transmitting substrate, a printed layer provided on the back surface of the substrate, a dark translucent layer formed according to the printed layer, and a light source that emits light to the substrate, the printed layer, and the dark translucent layer A display device having a section is known. Such a display device has a configuration in which a display pattern such as a character or a pattern is expressed by a slit formed in a dark translucent layer, and the display pattern is visually recognized through a substrate or the like by light emitted from the light source unit. .

  However, the display device having the above-described configuration cannot display with a sense of depth or stereoscopic effect, and has low design.

  In order to display with a sense of depth and stereoscopic effect, for example, the light incident on the light incident part is reflected on the groove formed on the back surface of the light incident part (substrate) on which the light output from the light source part is incident. A display device for forming a display pattern is known (see, for example, Patent Document 1).

JP 2014-182356 A

  However, the three-dimensional feeling and the depth feeling of the display pattern of Patent Document 1 are configured to depend on the width and depth of the groove. Therefore, if the width and depth of the groove are increased to increase the stereoscopic effect and depth of the display pattern, the thickness of the light incident portion (substrate) increases. When the plate thickness is increased, the display device is increased in size, so that devices that can be mounted are limited.

  In view of the above, an object is to provide a display device in which a three-dimensional feeling and a depth feeling are increased without increasing the plate thickness.

One idea is that
A substrate having transparency;
A coating layer provided on one side of the substrate;
A display pattern portion constituted by slits provided in the coating layer;
A polygonal recess formed on the other side opposite to the one side of the substrate;
A metal vapor deposition film portion provided on the other side surface including the concave portion of the substrate;
A light source unit that emits light from the direction of the other side surface toward the substrate and the metal deposition film unit,
The display device is characterized in that the concave portion is formed outside a visual recognition area where the display pattern portion is visible from a viewpoint of viewing the other side surface from the normal direction of the one side surface.

  According to the said structure, since the polygonal recessed part was formed in the outer side of the above-mentioned visual recognition area, the board | plate thickness of a board | substrate does not become thick. Furthermore, when the display pattern portion is viewed from an oblique direction with respect to the substrate, a part of the metal vapor deposition film portion (planar portion) located in the viewing region and one side surface (one side surface) of the recess located outside the viewing region ) And the three-dimensional part formed can be visually recognized, so that a sense of depth and a three-dimensional effect are dramatically increased as compared with the conventional case.

  According to one embodiment of the present invention, it is possible to provide a display device that increases a three-dimensional feeling and a depth feeling without increasing the plate thickness.

FIG. 11 is a cross-sectional view illustrating a structure of a display device. It is a perspective view explaining the display state of a display apparatus. It is explanatory drawing explaining the relationship between the recessed part of a display apparatus, and a visual recognition area. It is a perspective view explaining an example of a different shape of a crevice. It is a figure which shows an example which applied the display apparatus to the switch. It is a figure which shows an example which applied the display apparatus to the touchpad.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawings, the same or corresponding components are denoted by the same or corresponding reference numerals, and description thereof is omitted.

  Also, the drawings are not intended to show relative ratios between members or parts unless otherwise specified. Accordingly, specific dimensions can be determined by one skilled in the art in light of the following non-limiting embodiments.

  In addition, the embodiments described below are examples, not limiting the invention, and all features and combinations thereof described in the embodiments are not necessarily essential to the invention.

  FIG. 1 is a cross-sectional view illustrating a configuration of a display device. FIG. 2 is a perspective view illustrating a display state of the display device.

  The display device 1 includes a substrate 2, a coating layer 3, a display pattern unit 5, a recess 6, a metal vapor deposition film unit 7, and a light source unit 8.

  Below, what integrated the board | substrate 2, the coating layer 3, and the metal vapor deposition film | membrane part 7 is called the laminated body 10. FIG. The surface of the laminated body 10 is the coating layer 3, and the metal vapor deposition film part 7 is arrange | positioned at the back surface.

  The substrate 2 is a plate-like member having transparency. The substrate 2 is configured to transmit the light emitted from the light source unit 8 and propagate the light inside the substrate. Therefore, the substrate 2 is formed of PC resin (polycarbonate) having a high external light transmittance.

  The coating layer 3 is formed on the upper surface 21 (arrow Y1 side) of the substrate 2. The coating layer 3 is coated with, for example, a black paint that does not transmit light. As an example of the coating method, the coating may be performed by printing such as silk printing.

  The display pattern portion 5 is formed by slits 4 provided in the coating layer 3. The coating layer 3 has a black color that hardly transmits light as described above. Accordingly, the display pattern unit 5 allows light from the light source unit 8 arranged on the lower surface 22 side (arrow Y2 side) of the substrate 2 to pass through and visually recognizes (displays, for example, a character meaning “A” shown in FIG. ).

  Although FIG. 2 shows the case where the display pattern portion 5 is the letter “A”, it is not limited to this and may be an arrow or a pattern. In the present embodiment, characters, arrows, patterns, and the like are collectively referred to as display patterns. The display pattern portion 5 is formed by laser cutting, for example.

  A polygonal recess 6 is provided on the lower surface 22 of the substrate 2. The recess 6 is formed by a method using a laser, cutting, a mold or the like. In the present embodiment, the recess 6 is formed when the substrate 2 is injection molded. The recess 6 of the present embodiment is characterized by the position where it is arranged, which will be described later.

  A metal vapor deposition film portion 7 is formed on the lower surface 22 of the substrate 2 so as to include the recess 6. The metal vapor deposition film part 7 forms a thin film by evaporating and adhering the metal to the lower surface 22 of the substrate 2. The metal vapor deposition film part 7 may be formed by physical vapor deposition (PVD), chemical vapor deposition (CVD), or the like. Moreover, the metal vapor deposition film part 7 is formed with the material and film thickness which can permeate | transmit the light from the light source part 8 arrange | positioned at the lower surface 22 side (arrow Y2 side) of the board | substrate 2. FIG.

  In the display device 1 of the present embodiment, the metal vapor deposition film portion 7 is formed on the lower surface 22 of the substrate 2, so that when the user looks at the display pattern portion 5, the metal color of the metal vapor deposition film portion 7 can be seen. . Therefore, the display pattern “A” of the display pattern portion 5 shown in FIG. The color scheme of the metal color is appropriately and selectively determined.

  The light source part 8 arrange | positioned at the back surface side (arrow Y2 side) of the laminated body 10 of the said structure is set as the structure which has an LED element. The light source unit 8 is disposed on the back surface side (arrow Y <b> 2 side) of the stacked body 10 and at a position directly below the display pattern unit 5.

  Next, the arrangement position of the recess 6 will be specifically described with reference to FIGS. FIG. 3 is a diagram illustrating the relationship between the recess 6 of the display device 1 and the visual recognition area.

  The display device 1 according to the present embodiment has two regions when roughly classified as a region where the user visually recognizes the display pattern unit 5.

  The first is a visual recognition area D1 (hereinafter referred to as a front visual recognition area D1) that is visible when the user views the display pattern unit 5 from the front (upper center) with respect to the substrate 2. The second is a visual recognition area D2 (hereinafter referred to as an oblique viewing area D2) that is visible when the user views the display pattern unit 5 from an oblique direction with respect to the substrate 2.

  The above-described front visual recognition area D1 corresponds to “a visual recognition area that is visible from the viewpoint of viewing the other side surface (lower surface 22) from the normal direction of one side surface (upper surface 21)”.

  The front visual recognition area D1 is formed in a direction orthogonal to the surface 5a (dotted line) of the display pattern portion 5. Further, the top view of the front visual recognition area D1 is the same as the slit shape of the display pattern portion 5. In FIG. 2, it is “A”.

  The oblique viewing area D2 is formed in a direction inclined with respect to the surface 5a of the display pattern portion 5. In the illustrated example, the visual recognition area when tilted by 45 degrees is shown.

  The recessed part 6 formed in the lower surface 22 of the board | substrate 2 is formed so that it may come outside the above-mentioned front visual recognition area | region D1. As shown in FIG. 2, it is preferable that a plurality of the recesses 6 are continuously formed along the outside of the front visual recognition area D1. That is, the recess 6 is continuously formed along the outer edge of the outer periphery of the display pattern portion 5.

  Of course, the recessed part 6 does not need to continue along the outer side of the front visual recognition area | region D1, and may be formed in the outer vicinity position of the front visual recognition area | region D1 at intervals. That is, the position of the recess 6 may be outside the front visual recognition area D1, and is appropriately determined depending on the thickness of the substrate 2 and the like.

  Since the concave portion 6 is formed outside the front visual recognition area D1 as described above, when the user views the display pattern portion 5 from an oblique direction, the metal vapor deposition located in the front visual recognition area D1 in the oblique visual recognition area D2. The three-dimensional place K formed by the part 22A (plane portion) of the film portion 7 and the one side surface 60A (one side surface) of the recess 6 located outside the front visual recognition area D1 can be visually recognized. Therefore, a sense of depth and a three-dimensional feeling are dramatically increased as compared with the conventional case.

  In addition, the above-described structure is that not only when the light source unit 8 is turned on but also when the light source unit 8 is turned off, sunlight is incident from the display pattern unit 5, and the sunlight is the three-dimensional portion of the metal vapor deposition film unit 7. By reflecting with K, substantially the same depth feeling and stereoscopic effect can be realized.

  The recess 6 has a polygonal shape, and for example, a shape as shown in FIG. 4 may be implemented. 4A to 4C show an example of a polygonal shape having a basic configuration with a tapered tip. 4D to 4F show examples of a polygonal shape having a basic configuration in which the upper part is a horizontal plane.

  4A shows a triangular pyramid-shaped recess 61, FIG. 4B shows a quadrangular pyramid-shaped recess 62, and FIG. 4C shows a hexagonal pyramid-shaped recess 63.

  4D shows a recess 610 having a horizontal plane 610a at the top of the triangular pyramid shape, FIG. 4E shows a recess 620 having a horizontal plane 620a at the top of the quadrangular pyramid, and FIG. 4F shows a recess having a horizontal plane 630a at the top of the hexagonal pyramid shape. 630. The example shown in FIG. 4 is an example, and may be a polygonal shape with more diamond cuts.

  FIG. 5 shows an example in which the display device 1 according to this embodiment is applied to the switch 50. FIG. 5A is a perspective view of the switch 50, and FIG. 5B is a cross-sectional view of the switch 50. The switch 50 is used for a fog lamp switch, an air conditioner switch, other control switches, etc. in a vehicle, for example.

  The switch 50 includes a button knob 51, a knob holder 52, a tact switch 53, and the like. Although not shown, for example, a display pattern as shown in FIG. 2 is displayed on the surface of the button knob 51 shown in FIG. Therefore, by forming the button knob 51 from the laminated body 10 of the display device 1, the display pattern on the button knob 51 can have a three-dimensional effect and a sense of depth.

  Specifically, the laminated body 10 constituting the display device 1 described in FIG. 1 is arranged at the position of the button knob 51, and the light source unit 8 is arranged at a position directly below the display pattern unit 5 inside the knob holder 52. The apparatus 1 can be mounted. As shown in FIG. 5A, the display device 1 of this embodiment may be mounted on three consecutive switches, and the light source unit 8 may be provided for each switch.

  FIG. 6 shows an example in which the display device according to the present embodiment is applied to the touch pad 90. 6A is an overall perspective view of the touch pad 90, and FIG. 6B is a cross-sectional view of the touch pad 90.

  The touch pad 90 is an operation panel for operating a cursor or a button in the screen by tracing the operation surface with a finger, and is suitably implemented as an operation pad for a display unit mounted on a vehicle, for example.

  The touch pad 90 includes an operation surface 91, a light guide 92, an electrostatic sensor substrate 93, and a housing 94. The operation surface 91, the light guide 92, and the electrostatic sensor substrate 93 have a laminated structure, and the laminated structure is installed in the housing 94 so that the upper surface of the operation surface 91 is exposed.

  For example, a cross shape or the like is displayed as the display pattern unit 5 on the surface of the operation surface 91 illustrated in FIG. 6A. Therefore, by forming the operation surface 91 with the laminate 10 of the display device 1 described above, the display pattern on the operation surface 91 can have a three-dimensional effect and a sense of depth.

  Specifically, as shown in FIG. 6B, the laminated body 10 constituting the display device 1 described in FIG. 1 is arranged at the position of the operation surface 91, and the light source unit 8 is connected to the end of the light guide 92 to provide a light source. The display device 1 can be mounted by configuring so that the light from the portion 8 reaches a position directly below the display pattern portion 5. Further, a clear coat may be formed on the surface of the operation surface 91 in consideration of the operability of the tracing operation. The touch pad 90 having the above-described configuration may be installed on the upper surface of a console box disposed between a driver seat and a passenger seat in a vehicle, for example.

  Although the embodiments of the display device have been described above, the present invention is not limited to the above-described embodiments and the like, and various modifications and improvements can be made within the scope of the gist of the present invention described in the claims. is there.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Board | substrate 3 Paint layer 4 Slit 5 Display pattern part 6 Recessed part 7 Metal vapor deposition film part 8 Light source part 10 Laminate 50 Switch 90 Touchpad

Claims (1)

A paint layer provided on one side of the substrate;
A display pattern portion constituted by slits provided in the coating layer;
A polygonal recess formed on the other side opposite to the one side of the substrate;
A metal vapor deposition film portion provided on the other side surface including the concave portion of the substrate;
A light source unit that emits light from the direction of the other side surface toward the substrate and the metal deposition film unit,
The display device, wherein the concave portion is formed outside a visual recognition area where the display pattern portion is visible from a viewpoint of viewing the other side surface from a normal direction of the one side surface.

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