Interactive heads up display (IHUD)

• US 6,654,070 B1
• Filed: 03/23/2001
• Issued: 11/25/2003
• Est. Priority Date: 03/23/2001
• Status: Expired due to Fees

• Current Assignee: Michael Edward Rofe
• Original Assignee: Michael Edward Rofe
• Inventors: Rofe, Michael Edward
• Primary Examiner(s): Parker, Kenneth
• Application Number:
  US09/814,600
• Time in Patent Office: 977 Days
• Field of Search: 345/173, 345/176, 345/7, 349/11, 359/630
• US Class Current: 349/11
• CPC Class Codes: B32B 17/10504 Liquid crystal layer
• CPC Class Codes: B60K 2360/143 Touch sensitive instrument input devices
• CPC Class Codes: B60K 35/10 Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: H03K 2017/9602 characterised by the type or shape of the sensing electrodes

Abstract

The IHUD is an interactive display system allowing the vehicle driver to select information and view information utilizing LCD and touch screen technology, employing the windshield as the platform. Basically the same LCD technology found on calculators in use and touch screen technology found on interactive video display screens.

Claims

1. A touch screen assembly for an automotive vehicle comprising;

at least one glass surface wherein said glass is a window of an automobile;

a layer of liquid crystal defined to be within the physical boundaries of said glass;

a plurality of electrodes attached to said at least one glass surface, the surface being in vehicle interior; and

said electrodes closely coupled defining a contact area, said contact area being a region, when touched by an occupant changes electrical characteristics between said electrodes.

2. A touch screen assembly as claimed in claim 1 wherein said electrodes when touched by an occupant cause a change in capacitance to occur between said electrodes.

3. A touch screen assembly as claimed in claim 1 wherein said electrodes when touched by an occupant cause a change in resistance to occur between said electrodes.

4. A touch screen assembly as claimed in claim 1 wherein said electrodes are transparent.

5. A touch screen assembly as claimed in claim 1 wherein said at at least one glass surface is a windshield.

6. A touch screen assembly as claimed in claim 1 wherein said at least one glass surface is a vehicle side viewing pane of glass, whereas viewing is defined by an occupant to see from inside to outside of vehicle.

7. A touch screen assembly as claimed in claim 1 wherein said at least one glass surface is a door vehicle viewing pane of glass, whereas viewing is defined by an occupant to see from inside to outside of vehicle.

8. A touch screen assembly as claimed in claim 1 wherein said at least one glass surface is a rearview mirror.

9. A windshield assembly in an automotive vehicle comprising:

a windshield;

a layer of liquid crystal having a first perimeter and defined to be within the physical boundaries of said windshield;

a plurality of first electrodes attached to a surface of said windshield, the surface being in vehicle interior; and

said first electrodes closely coupled defining a contact area, said contact area being a region, when touched by an occupant changes electrical characteristics between said first electrodes.

10. A windshield assembly as claimed in claim 9 further including:

a first polarizing layer, having a second perimeter, disposed to overlap said layer of liquid crystal so that any polarized light passing through said layer of liquid crystal is due to said first polarizing layer.

11. A windshield assembly as claimed in claim 9 further including a second polarizing layer, having a third perimeter, disposed to overlap said layer of liquid crystal and spaced from said first polarizing layer, said liquid crystal being sandwiched between the first and second polarizing layers.

12. A windshield assembly as claimed in claim 9 further including a transparent second electrode disposed directly adjacent to said layer of liquid crystal.

13. A windshield assembly comprising:

at least one piece of glass said glass being a window of an automobile;

a layer of liquid crystal having a first perimeter and associate with said at least one piece of glass to display information from said at least one piece of glass within a field of vision of an operator of a vehicle;

a transparent first electrode disposed so that it is directly adjacent the layer of said liquid crystal;

a plurality of second electrodes attached to a surface of said at least one piece of glass, the surface being in vehicle interior; and

said second electrodes closely coupled defining a contact area, said contact area being a region, when touched by an occupant changes electrical characteristics between said second electrodes.