Method for displaying a single image for diagnostic purpose without interrupting an observer's perception of the display of a sequence of images

摘要

A method displays a single image on a graphical display for diagnostic purpose, without interrupting an observer's perception of the display of a sequence of images. Under that method, a sequence of images is displayed on a graphical display, interrupted only by the diagnostic image that is displayed for a time period not longer than 30 milliseconds. The diagnostic image may be used, for example, for calibrating colors and luminances of pixels in the graphical display. Another use of the diagnostic image may be, for example, determination of the ambient light reflected from the graphical display.

主权项

1. A method for displaying a single image for diagnostic purpose without interrupting an observer's perception of the display of a sequence of images, comprising:
displaying a sequence of images on a graphical display in which each pixel comprises a plurality of light emitting diode (LED) strings; interrupting displaying of the sequence images by inserting and displaying an image that is not derived from the sequence of images for a time period not longer than 30 milliseconds, the selected image being displayed by selectively activating predetermined LED strings, wherein the inserted image has a luminosity substantially the same as the luminosity in an image of the sequence of images displayed immediately prior to the inserted image; detecting a fault condition in the LED strings of the graphical display using light sensors positioned to receive light emitted from the selectively activated LED strings of the graphical display and ambient light reflected from the graphical display; and resuming display of the sequence of images immediately after displaying the inserted image.