JP6512437B2 - Display device - Google Patents

Description

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

  Conventionally, various display devices in which the display plate is subjected to metallic processing have been proposed, and for example, disclosed in Patent Document 1. Such a display device is obtained by screen-printing a light reflecting layer that emits metallic gloss on the back surface of the printing sheet, and forming a metal pseudo surface on the surface of the printing sheet to simulate the metal surface. .

JP 2005-111685 A

However, although the above-described display device has an advantage that a high metallic texture is obtained, it has a problem that 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 obtaining high visibility by suppressing light reflection while maintaining a metallic texture.

In the present invention, a pointer drive unit 22 having a pointer 10, a pivot shaft 22a for pivoting the pointer 10, and a through hole 40a formed at a position corresponding to the pivot shaft 22a A display panel 40 having an index portion 41, and the display panel 40 is a light reflecting layer 46 that emits metallic gloss, and a design layer printed on the light reflecting layer 46. 47, an annular inclined portion 40c centering on the through hole 40a, and flat portions 40b and 40d connected to the inclined portion 40c, and the asylum pattern 42 includes the inclined portion 40c. Is lower than the lightness of the flat portions 40b and 40d .

  Further, according to the present invention, the light pattern 42 is displayed by a large number of basic color dots.

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

  By printing and forming an Asahi pattern formed of a design layer on the light reflection layer that emits metallic gloss, it is possible to suppress the reflection of light and obtain high visibility while maintaining the metallic texture.

FIG. 1 is a cross-sectional view showing an embodiment of the present 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 based on the attached drawings. The vehicle display device includes a pointer 10, a circuit board 20, a case 30, a display plate 40, a liquid crystal display 50, and a rear cover 60.

  The pointer 10 includes an indicator 11 made of a translucent resin, a pointer cap 12 made of an opaque resin, a boss 13 into which the pivot shaft 22a is press-fitted, and a pointer seat 14 on which the indicator 11 is placed. The instruction unit 11 instructs an indicator unit 41, which will be described later. The circuit board 20 includes a substrate body 21, a pointer driving unit 22 mounted on the rear surface side of the substrate body 21, and light emitting elements 24 and 25 mounted on the front surface side of the substrate body 21. It is located behind 40.

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

  The pointer drive unit 22 is composed of a movable magnet drive unit, a stepping motor, and the like. The pivot shaft 22 a of the pointer drive unit 22 is inserted into the through hole 21 a formed in the substrate body 21, and the pointer 10 is attached to the pivot shaft 22 a of the pointer drive unit 22. The boss 13 of the pointer 10 is inserted into a through hole 40 a formed in the display plate 40. The through hole 40 a of the display plate 40 is formed at a position corresponding to the pivot shaft 22 a of the pointer drive unit 22 and is circular in a front view.

  The drive circuit of the substrate body 21 drives the pointer drive unit 22 based on the control signal supplied from the control unit, and the pointer 10 rotates the pivot shaft 22a at a rotation angle corresponding to the control signal. As a result, the pointer 10 is rotated at a predetermined rotation angle according to the vehicle speed, and the indicator 11 of the pointer 10 indicates the indicator 41 described later.

  Each of the light emitting elements 24 and 25 is configured by one or more light emitting diodes or the like. The light emitting element 24 transmits and illuminates the display plate 40. The light emitting element 25 illuminates the pointing portion 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 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 portion 31, an inclined portion 32, a parallel portion 33, an inclined portion 34 and a vertical portion 35. The vertical portion 31 of the case body 30 has a cylindrical shape, and the front end is in contact with the rear surface of the display plate 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 by the light emitting element 24 and the illumination light emitted by 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 by the light emitting element 24 toward the parallel portion 33 and the inclined portion 34. The parallel portion 33 of the case body 30 has a flat plate shape parallel to the display plate 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 front end of the vertical portion 35 of the case body 30 is in contact with the rear surface of the display plate 40, and the rear end is in contact with the front surface of the circuit board 20.

  The display plate 40 is three-dimensionally press-formed, and has a projecting portion 40 e having an arc-like cross section formed so as to surround the index portion 41 and the inner side of the index portion 41 (that is, the through hole 40 a than the index portion 41). And an inclined portion 40c formed on the side). A flat portion 40 d is formed between the protrusion 40 e and the inclined portion 40 c of the display plate 40. A flat portion 40 b is formed between the inclined portion 40 c of the display plate 40 and the through hole 40 a. The flat portions 40 b and 40 d of the display plate 40 are parallel to the circuit board 20. The inclined portion 40c of the display plate 40 is in the shape of an inverted cone, and the flat portion 40b of the display plate 40 is closer to the circuit board 20 than the flat portion 40d.

  The display plate 40 is formed by screen printing a white layer 45, a metallic layer 46, a design layer 47, a black layer 48, and an overcoat layer 49 sequentially on the front surface of a base 44 made of a light transmitting sheet. . The white layer 45 is formed on the entire area of the substrate 44. The metallic layer 46 is formed on the entire area of the base material 44 except for the vicinity of the index part 41, and emits metallic gloss. 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). ) Has four color dots.

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

  At the center of the display plate 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 (speed meter and tachometer). The liquid crystal display 50 displays vehicle information such as an integrated travel distance.

  Next, the display plate 40 will be described in more detail. The display board 40 has an indicator portion 41 and an Asahi pattern 42. The indicator portion 41 of the display plate 40 is disposed in an arc shape centering on the through hole 40 a, and is transmitted and illuminated by the illumination light emitted from the light emitting element 24. The Asahilight pattern 42 of the display board 40 is a chromatic pattern and imitates Asahilight.

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

  According to the present embodiment, by forming the light pattern 42 of the design layer 47 by printing on the metallic layer 46, it is possible to suppress the reflection of light and obtain high visibility while maintaining the metallic texture. Can. Moreover, since the lightness of the inclined part 40c is low compared with the lightness of the plane parts 40b and 40d, the three-dimensional effect of the display board 40 is emphasized.

  The present invention is not limited to the present embodiment, and various modifications are possible. For example, although the basic color dots of the design layer 47 consist of four color dots of C (cyan), M (magenta), Y (yellow) and K (black), for example, the basic of the design layer 47 The color dots may be dots of three colors of C (cyan), M (magenta) and Y (yellow), or dots of two arbitrary colors.

DESCRIPTION OF SYMBOLS 10 pointer 22 pointer drive part 22a rotational axis 24 light emitting element 25 light emitting element 40 display plate 40a through hole 40b flat part 40c inclined part 40d flat part 41 index part 42 asylum pattern 46 metallic layer (light reflecting layer)
47 Design layer

Claims (3)

A pointer, a pointer drive unit having a pivot shaft for pivoting the pointer, and a display plate having a through hole formed at a location corresponding to the pivot shaft and an indicator portion indicated by the pointer A display device provided,
The display plate is connected to a light reflection layer that emits metallic gloss, an asylum pattern including a design layer printed on the light reflection layer, an annular inclined portion centered on the through hole, and the inclined portion. And having a flat portion,
The display device according to claim 1, wherein the lightness of the inclined portion is lower than the lightness of the flat portion .   The display device according to claim 1, wherein the light pattern is displayed by a large number of basic color dots. The display device according to claim 2 , wherein the basic color dots include dots of C (cyan), M (magenta), and Y (yellow).

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