JP2017001604A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device for a vehicle realizing appearance with high solidity while suppressing display limit on an image display panel.SOLUTION: A display device 100 for a vehicle which is mounted on a vehicle for display toward a visible side includes, a state quantity display part 28 which displays a state quantity of a vehicle, an image display panel 20 which is disposed beside the state quantity display part 28 for displaying an image, and a surrounding wall 50 which protrudes to the visible side and surrounds the state quantity display part 28. At the surrounding wall 50, the image display panel 20 side is provided along an outer edge part 20a of the image display panel 20.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicular display device that is mounted on a vehicle and performs display toward a viewing side.

  2. Description of the Related Art Conventionally, a vehicle display device that is mounted on a vehicle and performs display toward a viewer side is known. For example, the vehicle display device disclosed in Patent Document 1 discloses a configuration including a state quantity display unit that displays a state quantity of a vehicle and an image display panel that is arranged alongside the state quantity display unit and displays an image. Has been. In this embodiment, as a result of part of the ring-shaped index display portion being wrapped on the image display panel, the four corner regions of the light transmission portion of the image display panel are formed. And it is supposed that the display which made the device which is not tired of a driver | operator by the area | region of four corners is attained. Moreover, the form which shape | molds this ring-shaped parameter | index display part in three dimensions is disclosed.

JP 2014-163755 A

  In patent document 1, in the form which shape | molds a ring-shaped parameter | index display part in three dimensions, it becomes possible to raise a three-dimensional effect compared with the case where it is flat. However, since the display of the image display panel is hidden in a partial circle by the ring-shaped index display unit that wraps in a ring shape, the display of the image display panel is limited.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a display device for a vehicle that realizes a high-quality appearance while suppressing display restrictions on an image display panel. It is in.

The present invention is a vehicle display device that is mounted on a vehicle and performs display toward the viewing side,
A state quantity display unit (28) for displaying a state quantity of the vehicle;
An image display panel (20) arranged side by side with the state quantity display section and displaying an image;
And a surrounding wall (50) that protrudes toward the viewing side and surrounds the state quantity display unit,
The image display panel side of the surrounding wall is provided along the outer edge (20a) of the image display panel.

  According to such an invention, since the image display panel side of the surrounding wall is provided along the outer edge of the image display panel, it is possible to suppress the display of the image display panel from being hidden. Furthermore, since the surrounding wall protrudes toward the viewing side, the stereoscopic effect can be enhanced. As described above, it is possible to provide a vehicle display device that realizes a high-quality appearance while suppressing display restrictions on the image display panel.

It is a front view of the display apparatus for vehicles in one embodiment. It is the II-II sectional view taken on the line of FIG. It is a figure shown about illumination of a panel light emission wall part and a light source light emission wall part.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The vehicle display device 100 according to an embodiment of the present invention is mounted on a vehicle and installed on an instrument panel facing a seat on which a viewer is seated. As shown in FIG. 1, the vehicle display device 100 constitutes a combination meter that combines analog display when the pointer 30 indicates an index 60 and digital display by the image display panel 20. To display. Thereby, the viewer who is located on the viewer side with respect to the vehicle display device 100 can perceive the displayed information. The displayed information includes, for example, the vehicle state quantity such as the vehicle speed, the engine speed, the remaining amount of fuel, the temperature of the engine cooling water, or the current value of the electric motor, or the alarm, road information, visual assistance information, etc. And various vehicle information such as e-mail.

  As shown in FIG. 2, the vehicular display device 100 includes a case unit 10, a substrate 15, a control circuit 17, an image display panel 20, a state quantity display unit 28, a light source unit 70, a light guide plate 72, and an enclosure. A wall 50 is provided.

  The case unit 10 includes a back case 11, a facing plate 12, and a transparent plate 13. The back case 11 is formed of, for example, a synthetic resin having a light shielding property, covers the substrate 15, the control circuit 17, the stepping motor 32, and the like from the back side, and holds the substrate 15, the light guide plate 72, and the like. The facing plate 12 is formed of, for example, a synthetic resin having a light shielding property, and is formed in a cylindrical shape having an opening on the viewing side along the outer peripheral contour of the device 100. The transparent plate 13 is formed in a plate shape that closes the opening of the facing plate 12 with a translucent resin such as acrylic resin, for example, and covers the plate portion 42 and the surrounding wall 50 from the viewing side.

  The board | substrate 15 is arrange | positioned at the visual recognition side rather than the back case 11 by fastening with the back case 11, etc., for example, is formed in flat form with synthetic resins, such as a glass epoxy resin. The substrate 15 mounts the control circuit 17 and holds the light source unit 70, the stepping motor 32, the image display panel 20, and the like.

  The control circuit 17 is an electronic circuit including a CPU and a memory, and is mounted on the substrate 15. The CPU can execute various processes by executing computer programs stored in the memory.

  The image display panel 20 is a panel-like display element that displays an image, and is arranged at the approximate center of the apparatus 100. In the present embodiment, the image display panel 20 is a liquid crystal panel using thin film transistors (TFTs), and is an active matrix type liquid crystal panel formed from a plurality of liquid crystal pixels arranged in a two-dimensional direction. It has been adopted. Here, the outer edge portion 20a of the image display panel 20 is formed in a rectangular shape in which each side extends in the arrangement direction of the liquid crystal pixels, so that the display surface 22 of the image display panel 20 has a rectangular shape.

  In the image display panel 20, the display surface 22 is exposed on the viewing side, and the back side is covered with a light-shielding cover 24. The transmittance of light incident on each liquid crystal pixel from the backlight in the light shielding cover 24 is controlled for each liquid crystal pixel by a control signal from the electrically connected control circuit 17, and the light passes through the display surface 22. To Penetrate. Thereby, the image display panel 20 can display an image toward the viewer side. For example, the image display panel 20 displays a state quantity that is not displayed on a state quantity display unit 28 described later, and various types of vehicle information, among the state quantities of the vehicle. Note that an organic EL panel other than the liquid crystal panel or the like may be employed as the image display panel 20.

  The state quantity display unit 28 is arranged side by side with the image display panel 20 as viewed from the viewing side. Specifically, a pair of state quantity display units 28 are provided so as to sandwich the image display panel 20 from both sides. Each state quantity display unit 28 includes a pointer 30 and a plate part 42.

  A pair of hands 30 is provided corresponding to each state quantity display unit 28, and each needle 30 is formed in a needle shape. Each pointer 30 is rotated around a rotation shaft 34 provided through the light guide plate 72 and the plate portion 42 by driving a stepping motor 32 controlled by the control circuit 17.

  A pair of plate portions 42 is provided corresponding to each state quantity display portion 28, and is formed integrally with the surrounding wall 50 by pressure forming, so that the display plate 40 (generally, together with the surrounding wall 50). It is also called a dial. Here, the display board 40 is formed by, for example, semi-translucent and light-shielding printing partially or entirely on the surface on the viewing side of a translucent substrate made of synthetic resin. In addition, it may replace with printing and the coating may be given.

  Each plate portion 42 is arranged on the viewing side from the image display panel 20 and on the back side from each pointer 30 and is formed in a flat plate shape. Each plate portion 42 is formed in a partial circle shape that lacks the image display panel 20 side. In each state quantity display unit 28, the pointer 30 rotates on the viewing side from the plate part 42, whereby the printed index 60 is indicated and the state quantity of the vehicle is displayed. For example, the vehicle speed is displayed on the left state quantity display unit 28 as viewed from the viewing side, and the engine speed is displayed on the right state quantity display unit 28 as viewed from the viewing side.

  A pair of surrounding walls 50 is provided corresponding to each state quantity display unit 28 and surrounds the corresponding state quantity display unit 28 over the entire circumference. Hereinafter, one of the surrounding walls 50 will be described in detail, but the same applies to the other surrounding wall 50.

  The surrounding wall 50 protrudes further to the viewing side than the plate portion 42. The image display panel 20 side of the surrounding wall 50 is provided along the outer edge portion 20a of the image display panel 20, and overlaps the outer edge portion 20a from the viewing side. Thereby, the image display panel 20 side in the surrounding wall 50 forms the panel light emission wall part 52 which is illuminated by the light of the image display panel 20 and emits light. In the present embodiment, the entire portion of the surrounding wall 50 along the outer edge portion 20 a is the panel light emitting wall portion 52. The panel light-emitting wall portion 52 is provided in a straight line with a protruding height HP with respect to the plate portion 42 corresponding to one side of the outer edge portion 20a formed in a rectangular shape.

  A portion of the surrounding wall 50 opposite to the image display panel 20, that is, a portion excluding the panel light emission wall portion 52, does not overlap the outer edge portion 20a, and is a light source light emission wall portion that emits light when illuminated by light from the light source portion 70 described later. 54 is formed. In the present embodiment, the entire portion of the surrounding wall 50 excluding the panel light emission wall portion 52 is the light source light emission wall portion 54. The light source light-emitting wall portion 54 is formed in an arc shape, and has an inclined portion 56, a ridge line portion 55, and an outer peripheral portion 57 in order from the inner peripheral side that is the rotating shaft 34 side. The ridge line portion 55 is formed by connecting portions where the height from the plate portion 42 is maximum in the radial direction along the circumferential direction. The inclined portion 56 is formed in an inclined surface shape that continuously connects the ridge line portion 55 and the plate portion 42 on the inner peripheral side of the ridge line portion 55. The outer peripheral portion 57 is a side wall on the outer peripheral side with respect to the ridge line portion 55.

  Here, the light source light emitting wall portion 54 has a maximum projecting height HS at a position facing the panel light emitting wall portion 52 across the rotation shaft 34 of the state quantity display unit 28, and is closer to the panel light emitting wall portion 52. The protrusion height HS is gradually reduced. Then, at the boundary between the light source light emitting wall portion 54 and the panel light emitting wall portion 52, the protruding height HS of the light source light emitting wall portion 54 and the protruding height HP of the panel light emitting wall portion 52 are substantially equal.

  In addition, the width WS of the ridge line portion 55 is also maximized at a position facing the panel light emission wall portion 52 across the rotation shaft 34 of the state quantity display unit 28, similarly to the projection height HS, and the panel light emission wall portion 52. Gradually shrinks toward

  The light source unit 70 has a plurality of light emitting elements arranged on the substrate 15 on the back side of the surrounding wall 50. In particular, in the present embodiment, the light emitting element is a light emitting diode element, and emits light when connected to a power source through the control circuit 17. With such a plurality of light emitting elements, the light source unit 70 emits light and irradiates the viewing side with light.

  The light guide plate 72 is disposed on the viewing side with respect to the light source unit 70 and on the back side with respect to the display plate 40. The light guide plate 72 is formed of a translucent material such as acrylic resin, and integrally includes a light guide flat plate portion 73 and a light guide protrusion 74.

  The light guide flat plate portion 73 is formed along the back side of the plate portion 42 of the display plate 40. The light guide projecting portion 74 is formed in an annular shape projecting from the light guide flat plate portion 73 toward the surrounding wall 50 on the back side of the surrounding wall 50.

  As shown in FIG. 3, in detail, the light guide protrusion 74 on the image display panel 20 side protrudes toward the panel light-emitting wall 52 from a portion in contact with the display surface 22 on the outer edge 20 a of the image display panel 20. Yes. Thereby, the light from the display surface 22 in the outer edge portion 20a illuminates the panel light emission wall portion 52 through the light guide protrusion 74, so that the panel light emission wall portion 52 emits light.

  In more detail, the light guide protrusion 74 protrudes from the portion facing the light source 70 toward the ridge 55 of the light source light emission wall 54 on the opposite side of the image display panel 20. Thereby, the light from the light source unit 70 illuminates the light source light emitting wall unit 54 via the light guide protrusion 74, so that the light source light emitting wall unit 54 emits light.

  In FIG. 3, the light guide path in the light guide plate is shown using arrows.

  The luminance at the ridge line portion 55 of the light source light emitting wall portion 54 is set higher than the luminance at the panel light emitting wall portion 52. Specifically, the ridge line portion 55 is subjected to semi-transparent gradation printing by a color that matches the hue of the light emission color of the panel light emission wall portion 52, and the transmittance of the print is the ridge line portion. 55 corresponds to the protrusion height HS. As a result, the surrounding wall 50 emits light with a luminance corresponding to the protruding height HS at each location.

  In addition, the inclined portion 56 of the light source light emitting wall portion 54 is also subjected to semi-transparent gradation printing according to the height from the plate portion 42, and the inclined portion 56 has a height from the plate portion 42. It emits light with a brightness according to the brightness.

(Function and effect)
The operational effects of the present embodiment described above will be described below.

  According to the present embodiment, since the image display panel 20 side of the surrounding wall 50 is provided along the outer edge portion 20a of the image display panel 20, it is possible to suppress the display of the image display panel 20 from being hidden. Furthermore, since the surrounding wall 50 protrudes to the visual recognition side, a three-dimensional effect can be enhanced. As described above, it is possible to provide the vehicle display device 100 that realizes a high-quality appearance while suppressing display restrictions on the image display panel 20.

  Further, according to the present embodiment, the outer edge portion 20a is formed in a rectangular shape, and the image display panel 20 side in the surrounding wall 50 is provided in a linear shape. According to this, since the display of the image display panel 20 can be reliably suppressed and a rectangular display area is maintained in the image display panel 20, the display restriction on the image display panel 20 is suppressed and the three-dimensional display is suppressed. A feeling can be heightened.

  Further, according to the present embodiment, the image display panel 20 side of the surrounding wall 50 overlaps with the outer edge portion 20a, thereby forming the panel light emission wall portion 52 that emits light when illuminated by the light of the image display panel 20. By such panel light emission wall part 52, the surrounding wall 50 can be made to light-emit easily in the location which overlaps the outer edge part 20a among the surrounding walls 50. FIG. Therefore, since the protrusion to the visual recognition side of the surrounding wall 50 can be emphasized, a three-dimensional effect can be enhanced.

  Further, according to the present embodiment, the light source unit 70 is disposed on the back side of the surrounding wall 50 and emits light, and the portion of the surrounding wall 50 excluding the panel light emitting wall portion 52 is illuminated by the light of the light source unit 70. A light source light emitting wall portion 54 that emits light is formed. By combining such a light source light-emitting wall portion 54 and the panel light-emitting wall portion 52, the surrounding wall 50 can emit light over the entire circumference. Therefore, since the protrusion to the visual recognition side of the surrounding wall 50 can be further emphasized, a three-dimensional effect can be improved.

  Further, according to the present embodiment, in the light source light emitting wall portion 54 formed by the surrounding wall 50, the protruding height HS is maximized at a position facing the panel light emitting wall portion 52, and the protruding height increases toward the panel light emitting wall portion 52. HS gradually shrinks. Since the protrusion height HS in the light source light emitting wall portion 54 changes in accordance with the positional relationship with the panel light emitting wall portion 52 in this manner, the protrusion of the surrounding wall 50 toward the viewing side can be further emphasized. The three-dimensional effect can be enhanced.

(Other embodiments)
Although one embodiment of the present invention has been described above, the present invention is not construed as being limited to the embodiment, and can be applied to various embodiments without departing from the gist of the present invention. it can.

  As a first modification, the light source light emitting wall portion 54 does not have to have the maximum protrusion height HS at a position facing the panel light emitting wall portion 52, and the protrusion height increases toward the panel light emitting wall portion 52. The length HS need not be gradually reduced.

  As a second modification, the portion other than the panel light emission wall portion 52 in the surrounding wall 50 may not emit light.

  As a third modification, the image display panel 20 side of the surrounding wall 50 may not emit light.

  As a fourth modification, if the image display panel 20 side of the surrounding wall 50 is provided along the outer edge portion 20a, the curved portion is within a range that does not impose an unremarkable restriction on the display of the image display panel 20. It may have.

  As a fifth modification, the indicator 60 indicated by the pointer 30 may be formed on the inclined portion 56.

  As a sixth modification, the state quantity display unit 28 may display the state quantity of the vehicle by image display or lamp lighting instead of the pointer 30.

  DESCRIPTION OF SYMBOLS 100 Display apparatus for vehicles, 20 Image display panel, 20a Outer edge part, 28 State quantity display part, 50 Enclosure wall, 52 panel light emission wall part, 54 Light source light emission wall part, 70 Light source part, HS Projection height

Claims (5)

A vehicle display device that is mounted on a vehicle and performs display toward a viewer side,
A state quantity display unit (28) for displaying the state quantity of the vehicle;
An image display panel (20) arranged alongside the state quantity display unit and displaying an image;
A surrounding wall (50) that protrudes toward the viewing side and surrounds the state quantity display unit,
The vehicle display device, wherein the image display panel side of the surrounding wall is provided along an outer edge portion (20a) of the image display panel. The outer edge is formed in a rectangular shape,
The vehicle display device according to claim 1, wherein the image display panel side of the surrounding wall is linearly provided.   The image display panel side of the surrounding wall overlaps with the outer edge portion to form a panel light emission wall portion (52) that emits light when illuminated by light of the image display panel. The vehicle display device according to 1 or 2. A light source part (70) disposed on the back side of the surrounding wall and emitting light;
4. The vehicle according to claim 3, wherein a portion of the surrounding wall excluding the panel light emission wall portion forms a light source light emission wall portion (54) that emits light when illuminated by light from the light source portion. Display device.   In the light source light-emitting wall portion formed by the surrounding wall, the protrusion height (HS) is maximized at a portion facing the panel light-emitting wall portion, and the protrusion height gradually decreases toward the panel light-emitting wall portion. The vehicle display device according to claim 4.

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