Importance

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Abstract

A method of balancing a display panel substrate for a backlit illuminated display includes providing a transparent display panel substrate having a front surface, a back surface, and side surfaces, the substrate being coated with a diffuse reflective layer and overcoated with an opaque layer on the back surface and side surfaces, and having recesses in the back surface to receive lamps to provide illumination to the display; coating the substrate on the front surface with a diffuse translucent layer of defined thickness; illuminating the substrate by lamps positioned within the recesses in the back surface of the substrate; forming an image indicative of the brightness at each point of the front surface of the illuminated substrate and determining from the image the additional thickness of diffuse translucent layer to be added to each point on the front surface of the substrate to produce a uniform brightness of a desired intensity at each point of the front surface when that layer is added and the substrate is illuminated; and adding to each point on the front surface of the substrate a diffuse translucent layer of a thickness determined for that point in accordance with the previous step.

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First Claim