JP2015105862A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device capable of easily adjusting brightness when a display board is illuminated by transmitting light from a plurality of light sources.SOLUTION: Provided is a display device comprising a plurality of light sources 4a, 4b, 4c, a display board having a design part illuminated by transmitting light from the light sources 4a, 4b, 4c, a case body 2 on which the display board is placed, and a light-shading part 21 integrally molded to the case body 2, where the light-shading part 21, having a thick-wall part 22 having a certain thickness in the direction perpendicular to the display board coupled with a thin-wall part 23 smaller in thickness than the thick-wall part 22, shades the light from the light sources 4a, 4b, 4c due to the fact that the light from the light sources 4a, 4b, 4c passes through the thin-wall part 23 and also can adjust brightness by the light passing through the thin-wall part 23.

Description

  The present invention relates to a display device mounted on a vehicle or the like, and more particularly to a display device including a light shielding unit that adjusts the luminance of a light source that illuminates a design unit.

  As a conventional display device, for example, there is one disclosed in Patent Document 1. Such a display device includes a circuit board, an instrument body disposed on the circuit board and having a drive shaft extending forward, a pointer mounted on the tip side of the drive shaft, and a pointer disposed between the pointer and the circuit board. A front panel having a display unit corresponding to the above, a light source that is positioned directly below the display unit and is disposed on the surface side of the circuit board and illuminates at least the display unit, and a reflector that is disposed between the front panel and the circuit board It has.

JP 2009-117735 A

  However, since the display device described in Patent Document 1 shields light from a light source arranged immediately below a reflector, for example, when a plurality of light sources are arranged, light from adjacent light sources is shielded more than necessary. Therefore, there is a problem that it is difficult to adjust the brightness.

  Accordingly, the present invention provides a plurality of light sources, a display plate having a design portion that is transmitted and illuminated by light from the light source, a case body on which the display plate is placed, and a light shielding portion that is integrally formed with the case body. The light-shielding part has a thin part that transmits part of the light from the light source, and a thick part that is thicker than the thin part.

  In the present invention, the light source is disposed directly below the thick portion.

  Provided is a display device capable of easily adjusting luminance when a display plate is transmitted and illuminated by light from a plurality of light sources.

The front view which shows 1st embodiment of this invention. AA sectional drawing which shows embodiment same as the above. BB sectional drawing which shows embodiment same as the above. CC sectional drawing which shows embodiment same as the above. Sectional drawing which shows the modification of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the attached FIGS. FIG. 5 shows a modification. FIG. 1 is a front view of a display device mounted on a vehicle, in which a pointer driven by a stepping motor provides vehicle information to a viewer by indicating an indicator portion provided on the display board 1. It is.

  The display device mainly includes a display panel 1, a case body 2, a circuit board 3, and a light source 4.

  The display board 1 is provided with a transparent design portion 1a formed by forming a light-shielding design frame on a plate material made of a light-transmitting transparent resin, and performs ambient display or the like. A semi-transmissive layer 11 made of a smoke layer is laminated on one side or both sides of the display panel 1. Further, a diffusion layer 12 for diffusing light from the light source 4 is laminated on one side or both sides of the semi-transmissive layer 11 laminated on the back side of the display panel 1. In addition, the design portion 1 a may include a halftone print layer on the back side of the semi-transmissive layer 11.

  In the case of this embodiment, the case body 2 is made of a white synthetic resin, is disposed between the display board 1 and the circuit board 3, and the display board 1 is placed thereon.

  The circuit board 4 is a hard board and has a light source 4 and an electronic component described later mounted on the surface.

  In the present embodiment, the light source 4 includes light sources 4a, 4b, and 4c having different color tones such as white, green, and blue.

  The case body 2 includes a light shielding portion 21 that blocks a part of the light of the light source 4 directed toward the display panel 2. The light shielding portion 21 is integrally formed with the case body 2.

  The light-shielding part 21 is diffusely reflected in the space S formed by the thick part 22 positioned directly above the light sources 4a, 4b and 4c, the thin part 23 connecting the thick parts 22 and the case body 2. The reflection light 24 is configured to reflect the reflected light toward the design portion 1 a of the display panel 1.

As shown in FIGS. 2 and 3, the thick portion 22 protrudes vertically toward the light source 4 and shields a part of the light emitted from the light source 4.

  As shown in FIGS. 2 and 4, the thin-walled portion 23 is disposed so as to connect the thick-walled portion 22, and is formed with a thickness smaller than that of the thick-walled portion 22. The thin portion 23 has a thickness that allows light from the light source 4 to pass therethrough.

  The present invention is integrally formed with a plurality of light sources 4, a display plate 1 having a design portion 1 a that is transmitted and illuminated by light from the light sources 4, a case body 2 on which the display plate 1 is placed, and a case body 2. In the display device including the light shielding portion 21, the light shielding portion 21 includes the thin portion 23 that transmits a part of the light of the light source 4 and the thick portion 22 that is thicker than the thin portion 23. As for the light of the light source 4, the light having the highest luminance is shielded, the light that is not shielded by the thick part 22 is transmitted through the thin part 23, and the design part 1 a can be illuminated together with the light reflected by the reflecting wall 24. .

  In the present invention, the light source 4 can be shielded from the light having the highest luminance of the light source 4 by being arranged directly below the thick portion 22, so that the luminance adjustment is facilitated.

  Further, as shown in FIG. 5, the thick portion 22 and the thin portion 23 may be curved instead of flat in shape facing the light source 4, and are the same as the thick portion 22 and the thin portion 23 shown in FIG. Thus, a part of the light of the light source 4 can be shielded.

  In the present embodiment, an example in which the design portion 1a is formed in a rectangular shape on the display board 1 and the light sources are arranged side by side has been described. However, the shape of the design portion 1a is not limited to this, for example, In this case, the light source is arranged corresponding to the shape of the design portion.

DESCRIPTION OF SYMBOLS 1 Display board 2 Case body 3 Circuit board 4, 4a-4c Light source 11 Semi-transmissive layer 12 Diffusion layer 21 Thick part 22 Thin part 23 Reflection wall S Space

Claims (2)

A plurality of light sources, and a display board having a design portion that is transmitted and illuminated by the light of the light sources;
In a display device comprising a case body on which the display plate is placed, and a light-shielding portion integrally formed with the case body,
The display device, wherein the light shielding portion includes a thin portion that transmits a part of light of the light source, and a thick portion that is thicker than the thin portion. The display device according to claim 1, wherein the light source is disposed directly below the thick portion.

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