Patent ID: 7928934
Filing Date: 2011-04-19
Classification: G09G

Abstract:
1. An AMOLED (organic light emitting diode) display comprising: an organic light emitting device; a pixel circuit having a 3 transistor-1 capacitor (3T-1C) structure having only three transistors and only one capacitor, the pixel circuit including, a current controller determining a current flowing through the driving and programming transistors; wherein said driving voltage switches between a first voltage level and a second voltage level, said first voltage level is sufficient to turn on the organic light emitting device, said second voltage level is sufficient to turn off the organic light emitting device, and said programming and switching transistors are simultaneously or concurrently activated during a period starting after said driving voltage switches from said first voltage level to said second voltage level and ending before said driving voltage switches from said second voltage level to said first voltage level.