Infrared illumination for a liquid crystal display
AssigneeFord Global Technologies, LLC
InventorsMark Larry, Biaohe Guo, Benjamin Lewis
Life of this patent
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Abstract
A computer that includes a processor and a memory, the memory including instructions executable by the processor to acquire an image from a camera included in light emitting diode (LED) backlit liquid crystal display (LCD) device, wherein the camera is located adjacent to an active display area of the LCD device through a portion of a front panel of the LCD device in which one or more polarizing layers of the front panel are absent to permit light to reach the camera. The scene can be illuminated beyond the front panel of the LCD device with IR light emitted by IR LEDs attached to a backlight substrate and directed to the front panel of the LCD device by IR lightguides.
Claims20
A system comprising:
- a computer including a processor and a memory storing instructions executable by the processor to:
- acquire an image from a camera included in a light emitting diode (LED) backlit liquid crystal display (LCD) device, wherein the camera is located adjacent to an active display area of the LCD device through a portion of a front panel of the LCD device in which one or more polarizing layers of the front panel are absent to permit IR light to reach the camera;
- and
- illuminate a scene beyond the front panel of the LCD device with IR light emitted by IR LEDs attached to a backlight substrate and directed to the front panel of the LCD device by IR lightguides.
A method comprising:
- acquiring an image from a camera included in a light emitting diode (LED) backlit liquid crystal display (LCD) device, wherein the camera is located adjacent to an active display area of the LCD device through a portion of a front panel of the LCD device in which one or more polarizing layers of the front panel are absent to permit IR light to reach the camera;
- and
- illuminating a scene beyond the front panel of the LCD device with IR light emitted by IR LEDs attached to a backlight substrate and directed to the front panel of the LCD device by IR lightguides.
Dependencies are inferred from the claim text.