Electronic device display with a backlight

An electronic device comprising:

• display layers;
• and
• a backlight unit that provides backlight for the display layers, the backlight unit comprising:
• a flexible printed circuit;
• a light guide film;
• a plurality of light-emitting diodes mounted on the flexible printed circuit that emit light into an edge of the light guide film;
• an optical film that is interposed between the light guide film and the display layers;
• and
• a compensating layer formed on the optical film, wherein the compensating layer causes the backlight unit to provide non-uniform backlight to the display layers and wherein the non-uniform backlight provided to the display layers compensates for a non-uniformity in the display layers to cause the electronic device to display a uniform light from the display layers.

An electronic device comprising:

• display layers;
• and
• a backlight unit that provides backlight for the display layers, the backlight unit comprising:
• a flexible printed circuit;
• a light guide film having edges and a plurality of tabs that protrude from the edges;
• a plurality of light-emitting diodes mounted on the flexible printed circuit that emit light into one of the edges of the light guide film;
• and
• a plurality of compensating layers that each alter at least one of the color and luminance of the backlight, wherein each one of the plurality of compensating layers is formed over a respective tab of the plurality of tabs.