IP Library Granted Patent US 11,299,096
Granted Patent B2
US 11,299,096 · App. 16/366,580 · Granted Apr 12, 2022

Rear-view mirror device mounted in a vehicle, vehicle-mounted display device, vehicle-mounted display system

Inventors: Norihito Kitajima (Kanagawa, JP); Tomoaki Yamamoto (Kanagawa, JP); Yuji Matsumoto (Kanagawa, JP)
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
B60R1/08B60R1/04B60R1/1207B60R11/04B60R2001/1253B60R2300/8066
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Quick Facts
Patent No.
US 11,299,096
App. No.
16/366,580
Granted
Apr 12, 2022
Kind
B2
Abstract

A glass plate includes a first arcuate surface at an outer circumferential edge part, the first arcuate surface facing a front surface side. A frame supports the glass plate from a rear surface side and includes a second arcuate surface in a portion toward the glass plate. A display unit is stored in a housing and outputs a display light toward the glass plate. A center C and a radius R of the second arcuate surface are made to be identical to a center C and a radius R of the first arcuate surface, respectively.

Claims (71)

1. A rear-view mirror device comprising:

a glass plate that includes a first arcuate surface at an outer circumferential edge part, the first arcuate surface facing a front surface side;

a casing that supports the glass plate from a rear surface side, the casing including a housing and a frame that projects from the housing, the frame including a second arcuate surface in a portion extending toward the outer circumferential edge part of the glass plate;

a reflective layer provided between the frame and the glass plate; and

an adhesive that bonds the reflective layer and the frame, wherein

a center and a radius of the second arcuate surface are made to be identical to a center and a radius of the first arcuate surface, respectively,

at least a part of the adhesive is located outside of the center of the first arcuate surface,

a rear surface of the glass plate and a front surface of the frame face each other at a spaced distance, and

the frame further includes:

a projection that projects, within the spaced distance, from the front surface of the frame toward the rear surface of the glass plate at an outer circumferential edge part of the front surface of the frame; and

a portion of the projection is included in the second arcuate surface.

2. The rear-view mirror device according to claim 1 , wherein

a thickness between a front surface and the rear surface of the glass plate is smaller than the radius of the first arcuate surface.

3. The rear-view mirror device according to claim 2 , wherein

a thickness of the glass plate is 1.1 mm or larger, and the radius of the first arcuate surface is 2.5 mm or larger.

4. The rear-view mirror device according to claim 1 , wherein

a bending fracture strength of the glass plate is 40 MPa or larger, and a Vickers hardness of the glass plate is 500 HV or higher.

5. The rear-view mirror device according to claim 1 , wherein

the adhesive is attached to the rear surface of the reflective layer and the front surface of the frame, and

the at least a part of the adhesive is attached to a part of the rear surface of the reflective layer that is outside the center of the first arcuate surface.

6. The rear-view mirror device according to claim 1 , wherein the adhesive directly bonds the reflective layer and the frame.

7. The rear-view mirror device according to claim 1 , wherein

an inclined part is provided on the rear surface side of the glass plate and is inclined upward from the rear surface of the glass plate toward the first arcuate surface, and

the projection projects toward the inclined part.

8. A vehicle-mounted display device comprising:

a glass plate that includes a first arcuate surface at an outer circumferential edge part, the first arcuate surface facing a front surface side;

a casing that supports the glass plate from a rear surface side, the casing including a housing and a frame that projects from the housing, the frame including a second arcuate surface in a portion extending toward the outer circumferential edge part of the glass plate;

a display unit stored in the casing and outputting a display light toward the glass plate; and

an adhesive that bonds the glass plate and the frame, wherein

a center and a radius of the second arcuate surface are made to be identical to a center and a radius of the first arcuate surface, respectively,

at least a part of the adhesive is located outside of the center of the first arcuate surface,

a rear surface of the glass plate and a front surface of the frame face each other at a spaced distance, and

the frame further includes:

a projection that projects, within the spaced distance, from the front surface of the frame toward the rear surface of the glass plate at an outer circumferential edge part of the front surface of the frame; and

a portion of the projection is included in the second arcuate surface.

9. The vehicle-mounted display device according to claim 8 , further comprising:

a half mirror part provided between the casing and the glass plate.

10. The vehicle-mounted display device according to claim 9 , wherein

the adhesive is attached to the rear surface of the half mirror part and the front surface of the frame, and

the at least a part of the adhesive is attached to a part of the rear surface of the half mirror part that is outside of the center of the first arcuate surface.

11. The vehicle-mounted display device according to claim 8 , wherein

a thickness between a front surface and the rear surface of the glass plate is smaller than the radius of the first arcuate surface.

12. The vehicle-mounted display device according to claim 8 , wherein

a thickness of the glass plate is 1.1 mm or larger, and the radius of the first arcuate surface is 2.5 mm or larger.

13. The vehicle-mounted display device according to claim 8 , wherein

a bending fracture strength of the glass plate is 40 MPa or larger, and a Vickers hardness of the glass plate is 500 HV or higher.

14. The vehicle-mounted display device according to claim 8 , wherein

the adhesive is attached to the rear surface of the glass plate and the front surface of the frame, and

the at least a part of the adhesive is attached to a part of the rear surface of the glass plate that is outside of the center of the first arcuate surface.

15. The vehicle-mounted display device according to claim 8 , wherein the adhesive directly bonds the glass plate and the frame.

16. The rear-view mirror device according to claim 8 , wherein

an inclined part is provided on the rear surface side of the glass plate and is inclined upward from the rear surface of the glass plate toward the first arcuate surface, and

the projection projects toward the inclined part.

17. A vehicle-mounted display system comprising:

an imaging device that captures an image; and

a vehicle-mounted display device that displays the image captured by the imaging device, wherein

the vehicle-mounted display device includes:

a glass plate that includes a first arcuate surface at an outer circumferential edge part, the first arcuate surface facing the front surface side;

a casing that supports the glass plate from a rear surface side, the casing including a housing and a frame that projects from the housing, the frame including a second arcuate surface in a portion extending toward the outer circumferential edge part of the glass plate;

a display unit stored in the casing and outputting a display light reflecting the image toward the glass plate; and

an adhesive that bonds the glass plate and the casing, wherein

a center and a radius of the second arcuate surface are made to be identical to a center and a radius of the first arcuate surface, respectively,

at least a part of the adhesive is located outside of the center of the first arcuate surface,

a rear surface of the glass plate and a front surface of the frame face each other at a spaced distance, and

the frame further includes:

a projection that projects, within the spaced distance, from the front surface of the frame toward the rear surface of the glass plate at an outer circumferential edge part of the front surface of the frame; and

a portion of the projection is included in the second arcuate surface.

18. A vehicle-mounted display system according to claim 17 , wherein the adhesive directly bonds the glass plate and the frame.

19. The rear-view mirror device according to claim 17 , wherein

an inclined part is provided on the rear surface side of the glass plate and is inclined upward from the rear surface of the glass plate toward the first arcuate surface, and

the projection projects toward the inclined part.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 28, 2024
From: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
To: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
Reel/Frame 066703/0209 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2019
From: KITAJIMA, NORIHITO; YAMAMOTO, TOMOAKI; MATSUMOTO, YUJI
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 050467/0047 →