Dual use display

• US 5,867,133 A
• Filed: 12/13/1996
• Issued: 02/02/1999
• Est. Priority Date: 12/13/1996
• Status: Expired due to Fees

• Current Assignee: Lear Automotive Dearborn, Incorporated (Lear Corporation)
• Original Assignee: UT Automotive Dearborn, Inc.
• Inventors: Palalau, Silviu, Toffolo, Daniel
• Primary Examiner(s): Hofsass, Jeffery A.
• Assistant Examiner(s): GOINS, DAVETTA WOODS
• Application Number:
  US08/764,183
• Time in Patent Office: 781 Days
• Field of Search: 345/7, 345/8, 345/9, 349/11, 353/13, 353/14, 359/630, 359/631, 359/632
• US Class Current: 345/7
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G09G 2340/0492 Change of orientation of the displayed image, e.g. upside-down, mirrored
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Abstract

A dual use heads-up display panel for a vehicle may be orientated in a first orientation wherein it displays information onto the window of a vehicle. The display panel may be selectively moved to a facing-forward position wherein it directs information towards the operator of the vehicle. The control for the display panel determines which of the two positions the display panel is in, and modifies the information displayed on the panel accordingly. The information should be reversed in a mirror image between the two orientations such that it is properly orientated when read off of the windshield, and is also properly orientated when read from the facing-forward position. In a further feature, a convergent optical system, which may be a lens, is placed in the path of the light from the display panel when in the heads-up position. The lens causes the size of the information displayed on the windshield to be reduced such that its intensity is increased.

Claims

1. A display system comprising:

a panel mounted within a vehicle such that a display face of said panel may be mounted in a first orientation to display information on a vehicle windshield, and is movable to a second orientation where it faces an operator; and

a control for said panel, said control being operable to determine if said panel is in said first or said second orientation, and reverse the information displayed on said panel between said two orientations.

2. A display as recited in claim 1, wherein said information is directed to said control in an orientation to be displayed in said second orientation and is only reversed if said control determines said panel is in said first orientation.

3. A display as recited in claim 1, wherein said control receives information on whether said panel is in said first orientation.

4. A display as recited in claim 1, wherein said display panel includes row drivers for driving rows on said display face, and the energization order of the rows being reversed as required between each of said row drivers.

5. A display as recited in claim 4, wherein said display panel also includes at least two sets of column drivers, and said information being reversed as necessary between said column drivers.

6. A display as recited in claim 1, wherein a spring biases said panel to said second orientation from said first orientation.

7. A display as recited in claim 6, wherein structure secures said panel in said first position.

8. A display as recited in claim 1, wherein a convergent optical system is placed in the path of light passing from said display panel toward the windshield, such that the image displayed on the windshield is smaller than the size of said image displayed on said display panel.

9. A method of displaying information in a vehicle comprising the steps of:

(1) providing a display panel operable to display an image, said panel being movable between a first orientation where it displays information on the windshield of the vehicle and to a second orientation where it displays information forwardly towards an operator of the vehicle;

(2) moving said panel to one of said first and second orientations;

(3) determining whether said panel is in said first or said second orientation; and

(4) modifying information as necessary based upon said determination of step (3), such that the information displayed in said first orientation is a mirror image of the information provided in said second orientation.

10. A method as recited in claim 9, wherein said information is received by said control, and simply displayed if said panel is in said second orientation, said information being reversed if said display panel is in said first orientation.

11. A method as recited in claim 9, wherein said panel actuates a switch when in said first orientation, said switch providing said control with the information of step 3.

12. A method of displaying information as set forth in claim 9, wherein said panel is secured at said first orientation.

13. A method as recited in claim 12, wherein said panel is biased to said second orientation.

14. A display for a vehicle comprising:

a display panel orientated such that information generated on said display panel is directed onto a windshield of a vehicle, there being a light path from said display panel to the windshield; and

a convergent optical system placed in said light path and between said display panel and said windshield, said convergent optical system causing the dimension of an image generated by said display panel to be reduced before being displayed on said windshield, such that an identical image will be displayed on said display panel and on said windshield, but being of a smaller dimension on said windshield.

15. A display panel as recited in claim 14, wherein said display panel is selectively movable from said first orientation to a second orientation where it no longer directs information onto said windshield.