Method and device to improve backlight uniformity

Details Method and device to improve backlight uniformity Method and device to improve backlight uniformity

2011-07-12

2011-07-12

Connelly Cushwa, Michelle R (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S039000, C385S901000, C362S561000, C362S552000, C362S610000, C362S615000, C349S062000

Reexamination Certificate

active

07978942

ABSTRACT:
A system and method for compensating for non-uniform illumination from a light guide for a display in an electronics device is provided. The system comprises: a memory device storing a data representing a first compensation pattern for generation on the display to block light from a first portion of the light guide relative to light from a second portion of the light guide; a first module to incorporate the stored representation into an image to be displayed on the display; and a second module to generate the image with the stored representation for display on the display. In the system, when the first module generates the first compensation pattern on the display, the first compensation pattern aligns with the first and second portions to reduce an intensity of light from a light source passing through the first compensation pattern from the first portion relative to an intensity of light passing through the first compensation pattern from the second portion from the light source.

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