| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an active type light emission display device which is provided with pixel configuration utilizing a threshold voltage correction system and which suppresses the flow of excess current to light emitting elements through TFT (Thin-Film Transistors) for driving in a reset period. <P>SOLUTION: One pixel 10 comprises a TFT (Tr1) for control, a TFT (Tr3) functioning as a threshold voltage forming element, a TFT (Tr4) functioning as a reset element, a TFT (Tr2) for driving, a capacitor C1 for holding the gate voltage of the TFT for driving, a TFT (Tr5) functioning as a current suppressing means to be off-controlled during the reset operation and an EL (Electroluminescence) element E1. During the reset operation to reset the terminal voltage of the capacitor C1 to a prescribed potential, the TFT (Tr5) is controlled to an off state and acts to prevent the excess currents by the operation of the TFT (Tr2) for driving from being applied to the EL element E1. <P>COPYRIGHT: (C)2004,JPO |
