Bezel body including a light guide member and vehicular display device including the bezel body

Patent metadata

Field	Value
Publication number	US-10036941-B2
Application number	US-201615346319-A
Country	US
Kind code	B2
Filing date	Nov 8, 2016
Priority date	Jun 12, 2014
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

Provided are a bezel body and a vehicular display device that effectively reduces a sense of discomfort provided to a passenger by making reflection on a windshield less visible. Since a reflection portion is formed in a predetermined area on a lower surface of a light guide member at the rear side, the guided external light is easy to reflect upward, whereby light can efficiently be emitted from the light guide member toward a descending wall. Therefore, this configuration can prevent the descending wall from being darkly reflected on a windshield, thereby making the reflection less visible and effectively reducing a sense of discomfort provided to the passenger.

First claim

The invention claimed is:

1. A bezel body comprising:
a bezel member fitted to an opposed wall to a windshield in an instrument panel of a vehicle, to constitute a part of or all of the perimeter of an opening through which an image projector provided in the instrument panel projects an image onto the windshield; and
a plate-like light guide member, wherein
the bezel member including a forward bezel portion disposed in front of the vehicle with respect to the opening, the forward bezel portion disposed such that an end in front of the vehicle is lifted from the opposed wall to form a gap with the opposed wall, and including a translucent descending wall that gradually descends from front to rear of the vehicle to reach the opening, and
the light guide member is disposed below the forward bezel portion, guides light entering an end face in front of the vehicle toward the descending wall, and is provided with a reflection portion on a predetermined area on a lower surface at the rear side of the vehicle, the reflection portion changing and reflecting an advancing direction of light to a thickness direction.

2. The bezel body according to claim 1 , wherein a diffusion portion that diffuses light emitted upward is provided on a top surface of the light guide member.

3. The bezel body according to claim 2 , further comprising a support member that supports the light guide member from below and reflects light from above.

4. A vehicular display device comprising: an image projector that is disposed in an instrument panel of a vehicle; and a bezel body including a bezel member that is fitted to an opposed wall to a windshield in the instrument panel to constitute a part of or all of the perimeter of an opening through which the image projector projects an image onto the windshield,
wherein the bezel body includes the bezel body according to claim 3 .

5. A vehicular display device comprising: an image projector that is disposed in an instrument panel of a vehicle; and a bezel body including a bezel member that is fitted to an opposed wall to a windshield in the instrument panel to constitute a part of or all of the perimeter of an opening through which the image projector projects an image onto the windshield,
wherein the bezel body includes the bezel body according to claim 2 .

6. The bezel body according to claim 1 , further comprising a support member that supports the light guide member from below and reflects light from above.

7. A vehicular display device comprising: an image projector that is disposed in an instrument panel of a vehicle; and a bezel body including a bezel member that is fitted to an opposed wall to a windshield in the instrument panel to constitute a part of or all of the perimeter of an opening through which the image projector projects an image onto the windshield,
wherein the bezel body includes the bezel body according to claim 6 .

8. A vehicular display device comprising: an image projector that is disposed in an instrument panel of a vehicle; and a bezel body including a bezel member that is fitted to an opposed wall to a windshield in the instrument panel to constitute a part of or all of the perimeter of an opening through which the image projector projects an image onto the windshield,
wherein the bezel body includes the bezel body according to claim 1 .

9. The bezel body according to claim 1 , wherein the reflection portion has a wedge-shaped cross-section.

10. The bezel body according to claim 1 , wherein the reflection portion includes a plurality of projections formed on a lower surface of the light guide member, the projections extend inwardly of the light guide member and from the lower surface of the light guide member.

11. The bezel body according to claim 1 , wherein the end face of the light guide member is positioned within the gap between the opposed wall and the end of the forward bezel portion.

12. The bezel body according to claim 1 , wherein the light guide member includes a top surface and a lower surface spaced away from the top surface in a thickness direction of the light guide member, and the end face extends from the top surface to the bottom surface in the thickness direction.

13. The bezel body according to claim 12 , wherein the reflection portion changing and reflecting an advancing direction of light within the light guide member to the thickness direction such that light that entered the light guide member through the end face exits the top surface of the light guide member and passes through the descending wall.

14. The bezel body according to claim 1 , wherein the light guide member is configured such that light entering from the gap between the forward bezel portion and the opposed wall into the end in the front side of the vehicle is totally reflected on an inner side of the light guide member and is directed toward the rear side of the vehicle, and wherein
a reflection portion changing and reflecting an advancing direction of light to a thickness direction of the light guide member is formed on a predetermined area on a lower surface of the light guide member at a read side of the vehicle.

15. A bezel body, comprising:
a bezel member that is fitted to an opposed wall to a windshield in an instrument panel of a vehicle to constitute a part of or all of the perimeter of an opening through which an image projector provided in the instrument panel projects an image onto the windshield, wherein
the bezel member has a forward bezel portion disposed in front of the vehicle with respect to the opening, and the forward bezel portion is disposed such that an end in front of the vehicle is lifted from the opposed wall to form a gap with the opposed wall, and includes a translucent descending wall that gradually descends from front to rear of the vehicle to reach the opening, wherein
the bezel body includes:
a light guide member that is formed into a plate-like shape, disposed to be overlapped with an inner surface of the forward bezel portion, and guides light entering an end face in front of the vehicle toward the descending wall;
a case member that is disposed with a space from the inner surface of the forward bezel portion so as to form with the forward bezel portion a storage space open toward the gap for the light guide member; and
a lighting window member that is provided between the forward bezel portion and the case member so as to close the opening of the storage space and to introduce light from the gap into the storage space, wherein

the light guide member is stored in the storage space with the end face in front of the vehicle facing the lighting window member, and wherein
the lighting window member has an optical deflection portion that deflects light introduced from the gap to be directed to the end face of the light guide member in front of the vehicle.

16. The bezel body according to claim 15 , wherein the lighting window member has a plate-like window body, and the optical deflection portion has multiple projections or recesses which are formed on either one of an inner surface and an outer surface of the window body to extend in the widthwise direction of the vehicle and have a wedge-shaped cross-section.

17. A vehicular display device comprising: an image projector that is disposed in an instrument panel of a vehicle; and a bezel body including a bezel member fitted to an opposed wall to a windshield in the instrument panel to constitute a part of or all of the perimeter of an opening through which the image projector projects an image onto the windshield,
wherein the bezel body is the bezel body acco

Assignees

• Yazaki Corp

Inventors

• Takahashi Nobuyuki
• Nakamura Go

Classifications

• G02B6/00

  Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings · CPC title

• G02B6/10

  of the optical waveguide type (G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00) · CPC title

• G02B2027/0118

  comprising devices for improving the contrast of the display / brillance control visibility · CPC title

• G03B21/28

  Reflectors in projection beam {(in illumination beam G03B21/2066)} · CPC title

• G03B21/145 Primary

  Housing details, e.g. position adjustments thereof · CPC title