BEZEL BODY AND VEHICULAR DISPLAY DEVICE

• US 20170052368A1
• Filed: 11/08/2016
• Published: 02/23/2017
• Est. Priority Date: 06/12/2014
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Takahashi, Nobuyuki, Nakamura, Go
• Granted Patent: US 10,036,941 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 2360/23 using reflectors
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: B60K 2360/336 Light guides
• CPC Class Codes: B60K 2370/1529 Head-up displays
• CPC Class Codes: B60K 2370/23 using reflectors
• CPC Class Codes: B60K 2370/334 Projection means
• CPC Class Codes: B60K 2370/336 Light guides
• CPC Class Codes: B60K 2370/37 Glare prevention
• CPC Class Codes: B60K 2370/39 Anti-reflection arrangements
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/23 Head-up displays [HUD] optical aspects of head-up displays G02B27/01
• CPC Class Codes: B60K 35/415 Glare prevention
• CPC Class Codes: B60K 35/425 Anti-reflection arrangements
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/012 comprising devices for attenuating parasitic image effects
• CPC Class Codes: G02B 27/0018 with means for preventing ghost images anti-reflection coatings G02B1/11
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 6/00 Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
• CPC Class Codes: G02B 6/10 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 Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: G03B 21/28 : Reflectors in projection beam in illumination beam G03B21/2066

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.

Claims

1. A bezel body including 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 though which an image projector provided in the instrument panel projects an image onto the windshield, the bezel body comprising:

a plate-like light guide member, 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, wherein 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 1, further comprising a support member that supports the light guide member from below and reflects light from above.

4. 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.

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 1.

6. 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.

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 3.

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 4.

9. 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.

10. The bezel body according to claim 9,

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.

11. 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 according to claim 10.

12. 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 according to claim 11.