High resolution pixel architecture
A pixel structure comprises a substantially transparent substrate, a drive transistor formed on the substrate, an organic light emitting device formed on the opposite side of the drive transistor from the substrate, a reflective layer disposed between the light emitting device and the drive transistor and having a reflective surface facing the light emitting device. The reflective layer forms an opening offset from the drive transistor for passing light emitted by the light emitting device to the substrate. At least a portion of the reflective layer is preferably concave in shape to direct reflected light from the light emitting device back onto the light-emitting device.
1. A color display comprising:
a controller; and
an array of pixels coupled to the controller to display images and including:
organic light emitting devices of alternating first and second colors located in every other row and every other column,
an organic light emitting device of a third color located in intervening rows and intervening columns, and not in said every other row and every other column in which said light emitting devices of alternating first and second colors are located, and
first, second and third drive transistors coupled to said organic light emitting devices of said first, second and third colors, respectively.