Disclosed are image expanding lenses, display devices, and electronic
devices incorporating the disclosed image expanding lenses. In accordance
with a disclosed image expanding lens, the image viewed by the user is
larger than the active area of the LCD panel underneath the lens, so that
the border around, for example, the LCD display is hidden from viewing.
The image expanding lenses may include a non-uniform transparent
substrate, having for example, a wedge shape that may be the top surface
of the display. The substrate in combination with prismatic films may
bend the light output from an array of pixels so that the image hides the
border of the display device. In this way, an electronic device can
render an edgeless image to a viewer since the image of the electronic
device is projected beyond an edge of the display device of the host
electronic device.