Display mirror assembly incorporating heatsink

• US 10,189,408 B2
• Filed: 11/01/2016
• Issued: 01/29/2019
• Est. Priority Date: 11/02/2015
• Status: Active Grant

• Current Assignee: Gentex Corporation
• Original Assignee: Gentex Corporation
• Inventors: Hallack, Jason D., Minikey, Jr., Danny L., Lisowski, Michael F., Fish, Jr., Richard T.
• Primary Examiner(s): Williams, Joseph L
• Assistant Examiner(s): Diaz, Jose M
• Application Number:
  US15/340,313
• Publication Number:
  US 20170120824A1
• Time in Patent Office: 819 Days
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/087 with remote or automatic control means
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: F21V 23/0464 the sensor sensing the level of ambient illumination, e.g. dawn or dusk sensors
• CPC Class Codes: G02B 6/0068 Arrangements of plural sources, e.g. multi-colour light sources
• CPC Class Codes: G02B 6/0085 Means for removing heat created by the light source from the package heat extraction or cooling elements for semiconductor light sources in general H01L33/64
• CPC Class Codes: G02B 6/0088 of the light guide or other optical sheets in the package
• CPC Class Codes: H05K 1/0203 Cooling of mounted components H05K1/0272 takes precedence
• CPC Class Codes: H05K 1/181 associated with surface mounted components
• CPC Class Codes: H05K 2201/10128 Display
• CPC Class Codes: H05K 2201/10151 Sensor
• CPC Class Codes: H05K 5/0017 with operator interface units
• CPC Class Codes: H05K 5/0204 Mounting supporting structures on the outside of casings
• CPC Class Codes: H05K 9/0081 Electromagnetic shielding materials, e.g. EMI, RFI shielding H05K9/0003 takes precedence

Abstract

A display mirror assembly for a vehicle is disclosed. The assembly comprises a display device defining a display surface having a display perimeter elongated along a length. The display device is in communication with a primary PCB. The primary PCB comprises a first side and an opposing second side. The first side is directed toward the display device. The assembly also comprises a heat sink in connection with the second side of the primary PCB and extending substantially coextensive with the length display perimeter.

Claims

1. A display mirror assembly for a vehicle, comprising:

a display device defining a display surface having a display perimeter elongated along a length;

a primary PCB in communication with the display device, the primary PCB comprising a first side and an opposing second side, wherein the first side is directed toward the display device;

a heat sink in connection with the second side of the primary PCB and extending substantially coextensive with the length display perimeter; and

a lighting module extending along the length of the display device, wherein the lighting module extends substantially perpendicular to the first side of the primary PCB and is configured to direct edge lighting substantially parallel to the first side of the primary PCB.

2. The display mirror assembly according to claim 1, wherein the primary PCB further comprises a first longitudinal edge and a second longitudinal edge substantially aligned with the length of the display device.

3. The display mirror assembly according to claim 2, wherein the heat sink forms an aperture configured to pass a connector therethrough, wherein the connector is configured to transmit between the primary PCB and the display device.

4. The display mirror assembly according to claim 3, wherein the aperture is located proximate the first longitudinal edge.

5. The display mirror assembly according to claim 1, wherein the lighting module corresponds to a secondary PCB comprising a plurality of light sources configured to emit edge lighting to illuminate the display device.

6. The display mirror assembly according to claim 1, further comprising an optic block disposed in an optic tray.

7. The display mirror assembly according to claim 6, wherein the optic tray forms a barrier layer between the primary PCB and the optic block.

8. The display mirror assembly according to claim 6, wherein the optic block is configured to receive the edge lighting along the length of the display device.

9. A display mirror assembly for a vehicle, comprising:

a display device comprising an optic tray and an optic block defining a display surface having a display perimeter elongated along a length;

a primary PCB in communication with the display device, the primary PCB comprising a first side and an opposing second side, wherein the first side is directed toward the display device;

a lighting module configured to project light along the length of the optic block and substantially parallel to the display surface;

a heat sink in connection with the second side of the primary PCB;

a light sensor in connection with the primary PCB; and

an optic device configured to receive light from a second direction substantially normal to the display surface and transmit the light to the light sensor in a first direction substantially parallel to the display surface.

10. The display mirror assembly according to claim 9, further comprising a mounting bracket in connection with the heat sink opposite the primary PCB, wherein the mounting bracket is configured to engage a mounting assembly configured to connect to a windshield.

11. The display mirror assembly according to claim 10, wherein the heat sink is configured to structurally support the display mirror assembly via the connection with the mounting bracket.

12. The display mirror assembly according to claim 10, further comprising a housing configured to substantially enclose the heat sink and the mounting bracket, wherein the optic device extends through a portion of the housing.

13. The display mirror assembly according to claim 12, wherein the light sensor is disposed on an auxiliary circuit board in connection with the primary PCB and configured to receive light in the first direction substantially parallel to the display surface.

14. A display mirror assembly for a vehicle, comprising:

a display device comprising an optic block defining a display surface having a display perimeter elongated along a length;

a primary PCB in communication with the display device, the primary PCB comprising a first side and an opposing second side, wherein the first side is directed toward the display device;

a heat sink in connection with the second side of the primary PCB; and

an intermediate shield extending substantially co-extensively with the optic block and disposed between the display device and the primary PCB.

15. The display mirror assembly according to claim 14, wherein the primary PCB further comprises a first longitudinal edge and a second longitudinal edge substantially aligned with the length of the display device.

16. The display mirror assembly according to claim 15, wherein the heat sink forms an aperture configured to pass a connector therethrough, wherein the connector is configured to transmit between the primary PCB and the display device.

17. The display mirror assembly according to claim 16, wherein the aperture is located proximate the first longitudinal edge.

18. The display mirror assembly according to claim 14, wherein the optic block is disposed in an optic tray.

19. The display mirror assembly according to claim 18, wherein the optic tray forms a barrier layer between the primary PCB and the optic block.

20. The display mirror assembly according to claim 18, wherein the optic block is configured to receive edge lighting along the length of the display device.