PIXEL CIRCUITS FOR AMOLED DISPLAYS

摘要

A system for driving a display that includes a plurality of pixel circuits arranged in an array, each of the pixel circuits including a light emitting device and a driving transistor for conveying a driving current through the light emitting device. Each of a first plurality of supply lines is associated with at least one pixel circuit in a preselected segment of the array, the first plurality of supply lines providing driving currents to the at least one pixel circuit in the preselected segment. Each of a plurality of voltage supplies is configured to provide a supply voltage to the at least one pixel circuit in the preselected segment of the array, the voltage supplies being controllably coupled to the pixel circuits in the preselected segment of the array. A controller determines which of the plurality of voltage supplies to connect to the preselected segment of the array.

主权项

1. A system for driving a display, the system comprising:
a plurality of pixel circuits arranged in an array, each of said pixel circuits comprising a light emitting device and a driving transistor for conveying a driving current through the light emitting device; a first plurality of supply lines each associated with at least one pixel circuit in a preselected segment of said array, the first plurality of supply lines providing driving currents to the at least one pixel circuit in said preselected segment; a plurality of voltage supplies each of which is configured to provide a supply voltage to the at least one pixel circuit in said preselected segment of said array, said voltage supplies being controllably coupled to the pixel circuits in said preselected segment of said array; and a controller for determining which of said plurality of voltage supplies to connect to said preselected segment of said array.