Patent ID: 8400577

Claim:
A display apparatus having a layout, the display apparatus comprising: a power supply line between a first data line and a second data line, said power supply line and said first and second data lines extending along a pixel column direction in a plan view of the layout; a drain semiconductor region of a first drive transistor electrically connected to said power supply line, a source semiconductor region of the first drive transistor and said drain semiconductor region of the first drive transistor being physically disposed along said pixel column direction; a drain semiconductor region of a second drive transistor electrically connected to said power supply line, a source semiconductor region of the second drive transistor and said drain semiconductor region of the second drive transistor being physically disposed along said pixel column direction; a first capacitor within a first correcting circuit electrically connected to a gate of the first transistor, said first capacitor being configured to hold a first data signal, and said first correcting circuit being configured to correct variations in a threshold voltage of the first drive transistor; wherein said first and second drive transistors are in geometric symmetry with respect to said power supply line, said power supply line being an axis of said geometrical symmetry.