Dual view display

Patent metadata

Field	Value
Publication number	US-12468194-B2
Application number	US-202418629004-A
Country	US
Kind code	B2
Filing date	Apr 8, 2024
Priority date	Apr 8, 2024
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A computer that includes a processor and a memory, the memory including instructions executable by the processor to provide direct backlighting to a display device by generating a first image at a first viewing angle during a first time period by energizing an LED zone to a first luminance, controlling a first LCD zone to be at a first transparency and controlling a second LCD zone to be non-transparent. A second image can be generated at a second viewing angle during a second time period by energizing the LED zone to a second luminance, controlling the first LCD zone to be non-transparent and controlling the second LCD zone to a second transparency. The first luminance can be transmitted through the first LCD zone disposed over the LED zone and directed at the first viewing angle by a parallax barrier when the first LCD zone is at the first transparency and the second luminance can be transmitted through the second LCD zone disposed over the LED zone and directed at a second viewing angle by the parallax barrier when the second LCD zone is at the second transparency.

First claim

The invention claimed is:

1 . A system comprising:
a computer including a processor and a memory storing instructions executable by the processor to: provide direct backlighting to a display device by generating a first image at a first viewing angle during a first time period by energizing an LED backlight zone to a first luminance, controlling a first LCD display zone to be at a first transparency and controlling a second LCD display zone to be non-transparent; generate a second image at a second viewing angle during a second time period by energizing the LED backlight zone to a second luminance, controlling the first LCD display zone to be non-transparent and controlling the second LCD display zone to a second transparency; and wherein the first luminance is transmitted through the first LCD display zone disposed over the LED backlight zone and directed at the first viewing angle by a parallax barrier when the first LCD display zone is at the first transparency and the second luminance is transmitted through the second LCD display zone disposed over the LED backlight zone and directed at a second viewing angle by the parallax barrier when the second LCD display zone is at the second transparency.

2 . The system of claim 1 , wherein the first viewing angle is at a first angle relative to a display substrate formed by the first and second LCD display zones and the second viewing angle is at a second angle relative to the display substrate formed by the first and second LCD display zones.

3 . The system of claim 1 , wherein multiple LED backlight zones and multiple first LCD display zones combine to project the first image at the first viewing angle based on the parallax barrier when the LED backlight zones are at the first luminance and the first LCD display zones are at the first transparency.

4 . The system of claim 3 , wherein the first image is a dynamic image.

5 . The system of claim 1 , wherein multiple LED backlight zones and multiple second LCD display zones combine to project the second image at the second viewing angle when the LED backlight zones are at the second luminance and the second LCD display zones are at the second transparency.

6 . The system of claim 5 , wherein the second image is a static image.

7 . The system of claim 1 , wherein the first transparency of the first LCD display zone and the second transparency of the second LCD display zone vary over time and the first and second time periods alternate.

8 . The system of claim 1 , wherein the first LCD display zone the second LCD display zone are energized to non-transparency during alternating time periods.

9 . The system of claim 1 , further comprising a vehicle dashboard supporting the display device.

10 . The system of claim 1 , further comprising a first occupant seating area and a second occupant seating area spaced from the first occupant seating area, the first viewing angle being toward the first occupant seating area and the second viewing angle being toward the second occupant seating area.

11 . The system of claim 1 , further comprising a windshield, the first viewing angle being toward the windshield to be visible as a heads-up display and the second viewing angle being angled relative to the windshield to be visible as a direct display.

12 . A method comprising:
providing direct backlighting to a display device by generating a first image at a first viewing angle during a first time period by energizing an LED backlight zone to a first luminance, controlling a first LCD display zone to be at a first transparency and controlling a second LCD display zone to be non-transparent; generating a second image at a second viewing angle during a second time period by energizing the LED backlight zone to a second luminance, controlling the first LCD display zone to be non-transparent and controlling the second LCD display zone to a second transparency; and wherein the first luminance is transmitted through the first LCD display zone disposed over the LED backlight zone and directed at the first viewing angle by a parallax barrier when the first LCD display zone is at the first transparency and the second luminance is transmitted through the second LCD display zone disposed over the LED backlight zone and directed at a second viewing angle by the parallax barrier when the second LCD display zone is at the second transparency.

13 . The method of claim 12 , wherein the first viewing angle is at a first angle relative to a display substrate formed by the first and second LCD display zones and the second viewing angle is at a second angle relative to the display substrate formed by the first and second LCD display zones.

14 . The method of claim 12 , wherein multiple LED backlight zones and multiple first LCD display zones combine to project the first image at the first viewing angle based on the parallax barrier when the LED backlight zones are at the first luminance and the first LCD display zones are at the first transparency.

15 . The method of claim 12 , wherein multiple LED backlight zones and multiple second LCD display zones combine to project the second image at the second viewing angle when the LED backlight zones are at the second luminance and the second LCD display zones are at the second transparency.

16 . The method of claim 12 , wherein the first transparency of the first LCD display zone and the second transparency of the second LCD display zone vary over time and the first and second time periods alternate.

17 . An assembly comprising:
a display substrate; an LED backlight zone including one or more LEDs fixed to the display substrate; the LED backlight zone being energizable to a first luminance during a first time period and the LED backlight zone being energizable to a second luminance during a second time period; and a parallax barrier spaced from the display substrate, a first LCD display zone transparently disposed over the LED backlight zone when the LED backlight zone is energized to the first luminance during the first time period, and a second LCD display zone transparently disposed over the LED backlight zone when the LED backlight zone being energized to the second luminance during a second time period wherein the first luminance is directed at a first viewing angle by the parallax barrier and the second luminance is directed at a second viewing angle by the parallax barrier.

18 . The assembly of claim 17 , further comprising a vehicle dashboard supporting the display substrate, the LED backlight zone, the first LCD display zone, the second LCD display zone and the parallax barrier.

19 . The assembly of claim 17 , further comprising a first occupant seating area and a second occupant seating area spaced from the first occupant seating area, the first viewing angle being toward the first occupant seating area and the second viewing angle being toward the second occupant seating area.

20 . The assembly of claim 17 , further comprising a windshield, the first viewing angle being toward the windshield to be visible as a heads-up display and the second viewing angle being angled relative to the windshield to be visible as a direct display.

Assignees

• Ford Global Tech Llc

Inventors

• Larry Mark
• Kim Dongwoo
• Guo Biaohe

Classifications

• H04L67/02

  based on web technology, e.g. hypertext transfer protocol [HTTP] · CPC title

• H04N5/262

  Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects {; Cameras specially adapted for the electronic generation of special effects} · CPC title

• H04N21/41422

  located in transportation means, e.g. personal vehicle (arrangements specially adapted for transportation systems in broadcast systems H04H20/62) · CPC title

• G09G3/003

  to produce spatial visual effects · CPC title

• G09G3/36

  using liquid crystals · CPC title