US Patent Application 18222847. IMAGE DISPLAY DEVICE simplified abstract

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IMAGE DISPLAY DEVICE

Organization Name

Panasonic Intellectual Property Management Co., Ltd.


Inventor(s)

Hiroyuki Furuya of Osaka (JP)

IMAGE DISPLAY DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18222847 titled 'IMAGE DISPLAY DEVICE

Simplified Explanation

The patent application describes an image display device that includes various components to improve the quality of displayed images by reducing deformation caused by strain in the hologram light guide plate.

  • The image display device has an image generation part that generates display light with a predetermined contour shape based on an image signal.
  • A hologram light guide plate is used, which has a light guide path for the display light to propagate from an incident region to an emission region.
  • The hologram light guide plate also has a hologram that applies a diffraction action to the display light within the light guide path.
  • A strain sensor is included to detect any strain in the hologram light guide plate.
  • An image control circuit is responsible for controlling the image generation part.
  • The image control circuit adjusts the display light generated by the image generation part based on the strain sensor's detection result.
  • The purpose of this adjustment is to suppress any deformation of the display image caused by strain in the hologram light guide plate.


Original Abstract Submitted

An image display device includes: an image generation part configured to generate display light having a predetermined contour shape on the basis of an image signal; a hologram light guide plate having a light guide path in which the display light taken from an incident region propagates to an emission region, and a hologram configured to apply a diffraction action to the display light in the light guide path; a strain sensor configured to detect strain of the hologram light guide plate; and an image control circuit configured to control the image generation part. The image control circuit sets the display light generated by the image generation part, on the basis of a detection result of the strain sensor such that deformation of a display image due to strain of the hologram light guide plate is suppressed.