Method and device to improve backlight uniformity

A method of compensation for non-uniform illumination from a light guide for a liquid crystal display (LCD) in an electronics device, comprising:

• through a processor in said device, accessing a stored representation of a first compensation pattern for generation on the LCD to block light from a first portion of said light guide relative to light from a second portion of said light guide;
• through said processor, incorporating the stored representation into an image to be displayed on the LCD;
• and
• through said processor, generating the image with the stored representation for display on the LCD,
• wherein when the first compensation pattern is generated on the LCD, 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.

A method of generating a compensation pattern for non-uniform illumination from a light guide for a liquid crystal display (LCD) in an electronics device, comprising:

• determining a first portion of the light guide that provides greater light output relative to a second portion of the light guide when illuminated by a backlight;
• determining a first compensation pattern for generation on a liquid crystal display (LCD) to block light from the first portion relative to light from the second portion;
• through a processor in said device generating a representation of a first compensation pattern for generation on the LCD to block light from a first portion of said light guide relative to light from a second portion of said light guide;
• incorporating the representation into an image to be displayed on the LCD;
• and
• through said processor generating the image with the stored representation for display on the LCD,
• wherein when the first compensation pattern is generated on the LCD, the first compensation pattern aligns with the first and second portions to reduce an intensity of light from the backlight 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 backlight.