JP2016211937A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of obtaining high visibility by suppressing a reflection of light while keeping texture of a metal.SOLUTION: A pointer driving part includes a rotating axis for rotating a pointer. A display plate is formed with a through-hole at a place corresponding to the rotating axis and includes an index part 41 indicated by the pointer. The display plate has a light reflection layer 46 having metallic glossiness, and a rising-sun design including a design layer 47 printed and formed on the light reflection layer 46. The display plate includes an annular inclined part 40c with a through-hole as a center; and flat surface parts 40b, 40d continuing to the inclined part 40c. The rising-sun design is low in brightness of the inclined past 40c as compared with that of the flat surfaces 40b, 40d. The rising-sun design is displayed by a plurality of basic color dots.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a display device provided with a display board indicated by a pointer.

  Conventionally, various display devices in which a display plate is subjected to metal tone processing have been proposed. For example, Patent Document 1 discloses the display device. Such a display device is obtained by screen-printing a light reflecting layer that emits metallic luster on the back surface of a sheet to be printed, and forming a metal pseudo surface on the surface of the sheet to be printed in a pseudo manner to represent the metal surface. .

JP 2005-1111685 A

However, the above-described display device has an advantage that a high metallic texture can be obtained, but has a problem that the visibility is not good because the light reflection by the light reflection layer is strong.
The present invention has been made in view of this problem, and provides a display device capable of suppressing reflection of light and obtaining high visibility while maintaining a metallic texture.

  In the present invention, a pointer 10, a pointer driving unit 22 having a rotating shaft 22 a for rotating the pointer 10, and a through hole 40 a are formed at locations corresponding to the rotating shaft 22 a, and the pointer 10 is instructed. A display device having a display plate 40 having an indicator portion 41. The display plate 40 includes a light reflecting layer 46 that emits metallic luster, and a design layer that is printed on the light reflecting layer 46. Asahikari pattern 42 composed of 47.

  Further, according to the present invention, the display plate 40 includes an annular inclined portion 40c centered on the through hole 40a, and flat portions 40b and 40d connected to the inclined portion 40c.

  In the present invention, the Asahi light pattern 42 is such that the brightness of the inclined portion 40c is lower than the brightness of the flat portions 40b and 40d.

  In the present invention, the Asahi pattern 42 is displayed by a large number of basic color dots.

  The display device according to claim 4, wherein the basic color dots include C (cyan), M (magenta), and Y (yellow) dots.

  By printing and forming an Asahi light pattern made of a design layer on a light reflecting layer that emits metallic luster, reflection of light can be suppressed and high visibility can be obtained while maintaining a metallic texture.

Sectional drawing which shows embodiment of this invention. The front view which shows embodiment same as the above. The principal part expanded sectional view which shows embodiment same as the above. The principal part enlarged front view which shows embodiment same as the above.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The vehicle display device includes a pointer 10, a circuit board 20, a case body 30, a display plate 40, a liquid crystal display 50, and a rear cover 60.

  The pointer 10 includes an instruction portion 11 made of a translucent resin, a pointer cap 12 made of an opaque resin, a boss portion 13 into which the rotating shaft 22a is press-fitted, and a pointer seat 14 on which the indication portion 11 is placed. The indicator unit 41 is instructed by the instruction unit 11. The circuit board 20 includes a board body 21, a pointer driving unit 22 mounted on the rear surface side of the board body 21, and light emitting elements 24 and 25 mounted on the surface side of the board body 21. 40 is arranged on the rear side.

  The substrate body 21 is formed of a hard printed circuit board in which a driving circuit for driving the pointer driving unit 22 and a light emitting circuit for emitting the light emitting elements 24 and 25 are formed on a flat glass epoxy base material. The drive circuit and the light emitting circuit are each composed of a wiring pattern, a resistor, a capacitor, and the like. The drive circuit drives the pointer drive unit 22 based on a control signal supplied from the control unit. The light emitting circuit causes the light emitting elements 24 and 25 to emit light based on a control signal supplied from the control unit.

  The pointer driving unit 22 includes a movable magnet type driving device, a stepping motor, and the like. The rotation shaft 22 a of the pointer driving unit 22 is inserted into a through hole 21 a formed in the substrate body 21, and the pointer 10 is attached to the rotation shaft 22 a of the pointer driving unit 22. The boss 13 of the pointer 10 is inserted into a through hole 40 a formed in the display board 40. The through hole 40a of the display board 40 is formed at a location corresponding to the rotating shaft 22a of the pointer driving unit 22 and has a circular shape when viewed from the front.

  The drive circuit of the substrate body 21 drives the pointer driving unit 22 based on a control signal supplied from the control unit, and the pointer 10 rotates the rotation shaft 22a at a rotation angle corresponding to the control signal. Accordingly, the pointer 10 rotates at a predetermined rotation angle corresponding to the vehicle speed, and the instruction unit 11 of the pointer 10 instructs an index unit 41 described later.

  Each of the light emitting elements 24 and 25 includes one or more light emitting diodes. The light emitting element 24 illuminates and transmits the display panel 40. The light emitting element 25 shines the instruction unit 11 of the pointer 10. The light emitting elements 24 and 25 are driven based on a control signal supplied from the control unit, and are turned on / off according to an illumination switch or the like operated by a vehicle driver.

  The case body 30 is made of a white synthetic resin (for example, polypropylene), and the circuit board 20 is fixed to the case body 30. The case body 30 has a vertical part 31, an inclined part 32, a parallel part 33, an inclined part 34, and a vertical part 35. The vertical portion 31 of the case body 30 has a cylindrical shape, the front end is in contact with the rear surface of the display panel 40, and the rear end is in contact with the front surface of the circuit board 20. The vertical portion 31 of the case body 30 is a light shielding wall that prevents the illumination light emitted from the light emitting element 24 and the illumination light emitted from the light emitting element 25 from being mixed.

  The inclined portion 32 of the case body 30 has a shape that spreads in an inverted conical shape from the outer peripheral surface of the vertical portion 31. The inclined portion 32 of the case body 30 reflects the illumination light emitted from the light emitting element 24 toward the parallel portion 33 and the inclined portion 34. The parallel part 33 of the case body 30 has a flat plate shape parallel to the display panel 40. The inclined portion 34 of the case body 30 has an inverted conical shape and is continuous with the outer peripheral end of the parallel portion 33. The inclined portion 34 of the case body 30 reflects the illumination light emitted from the light emitting element 24 toward the display plate 40. The vertical portion 35 of the case body 30 has a cylindrical shape, and the rear end is in contact with the front surface of the circuit board 20. The vertical portion 35 of the case body 30 is continuous with the outer peripheral end of the inclined portion 34. The vertical portion 35 of the case body 30 has a front end in contact with the rear surface of the display board 40 and a rear end in contact with the front surface of the circuit board 20.

  The display board 40 is three-dimensionally press-molded, and has a projecting portion 40e having a circular arc cross section formed so as to surround the indicator portion 41, and the inside of the indicator portion 41 (that is, the through hole 40a rather than the indicator portion 41). And an inclined portion 40c formed on the side). A flat portion 40d is formed between the protruding portion 40e and the inclined portion 40c of the display panel 40. A flat portion 40b is formed between the inclined portion 40c of the display panel 40 and the through hole 40a. The flat portions 40 b and 40 d of the display board 40 are parallel to the circuit board 20. The inclined portion 40c of the display board 40 has an inverted conical shape, and the flat portion 40b of the display board 40 is closer to the circuit board 20 than the flat portion 40d.

  The display board 40 is obtained by sequentially forming a white layer 45, a metallic layer 46, a design layer 47, a black layer 48, and an overcoat layer 49 by screen printing on the front surface of a base material 44 made of a translucent sheet. . The white layer 45 is formed over the entire area of the base material 44. The metallic layer 46 is formed in the whole area of the base material 44 except for the vicinity of the indicator portion 41, and emits a metallic luster. The design layer 47 is composed of a large number of fine basic color dots formed on the white layer 45, and the basic color dots are C (cyan), M (magenta), Y (yellow), K (black). ) Of four colors.

  An opening 48 a is formed in the black layer 48, and the opening 48 a serves as the indicator portion 41. A light diffusion layer 43 is formed on the rear surface of the substrate 44. A white layer 45 and an overcoat layer 49 are sequentially formed on the indicator portion 41 of the display panel 40. A black layer 48 is formed around the indicator portion 41.

  In the center of the display panel 40, a rectangular window 40g for visually recognizing the image of the liquid crystal display 50 is formed. The liquid crystal display 50 is disposed between two pointer-type meters (speedometer and tachometer). The liquid crystal display 50 displays vehicle information such as the accumulated travel distance.

  Next, the display board 40 will be described in detail. The display board 40 includes an index portion 41 and an Asahi light pattern 42. The indicator portion 41 of the display panel 40 is arranged in an arc shape with the through hole 40a as the center, and is transmitted and illuminated by the illumination light emitted from the light emitting element 24. The Asahi light pattern 42 of the display board 40 is a chromatic pattern, and imitates Asahi light.

  The Asahi light pattern 42 of the display board 40 is composed of the light reflecting layer 46, and is a pattern that spreads radially around the through hole 40a. The brightness of the Asahi pattern 42 on the display board 40 is low at the inclined portion 40c. That is, the brightness of the Asahi light pattern 42 in the inclined portion 40c is lower than the brightness of the Asahi light pattern 42 in the flat portions 40b and 40d.

  According to the present embodiment, the Asahikari pattern 42 made of the design layer 47 is printed on the metallic layer 46, thereby suppressing the reflection of light and maintaining high visibility while maintaining the metallic texture. Can do. In addition, since the brightness of the inclined portion 40c is lower than the brightness of the flat portions 40b and 40d, the stereoscopic effect of the display board 40 is emphasized in the Asahi pattern 42.

  In addition, this invention is not limited to this embodiment, A various deformation | transformation is possible. For example, the basic color dots of the design layer 47 are composed of four color dots of C (cyan), M (magenta), Y (yellow), and K (black). The color dots may be composed of dots of three colors C (cyan), M (magenta), and Y (yellow), or may be composed of dots of any two colors.

DESCRIPTION OF SYMBOLS 10 Pointer 22 Pointer drive part 22a Rotating shaft 24 Light emitting element 25 Light emitting element 40 Display board 40a Through-hole 40b Plane part 40c Inclination part 40d Plane part 41 Indicator part 42 Asahi light pattern 46 Metallic layer (light reflection layer)
47 Design layer

Claims (5)

A pointer, a pointer driving unit having a rotation shaft for rotating the pointer, and a display plate having a through hole formed at a position corresponding to the rotation shaft and having an index unit indicated by the pointer. A display device comprising:
The display device includes a light reflecting layer that emits a metallic luster and an Asahi light pattern formed of a design layer printed on the light reflecting layer.   The display device according to claim 1, wherein the display plate includes an annular inclined portion centered on the through hole, and a flat portion connected to the inclined portion.   The display device according to claim 2, wherein the Asahi light pattern has a lightness of the inclined portion lower than that of the flat portion.   The display device according to claim 1, wherein the Asahi light pattern is displayed by a large number of basic color dots.   The display device according to claim 4, wherein the basic color dots include C (cyan), M (magenta), and Y (yellow) dots.

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