Organic emitting display device and driving method thereof
AssigneeSamsung Display Co., Ltd.
InventorHong-Sik PARK
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Abstract
An organic light emitting diode (“OLED) display comprises a plurality of pixels which receives a first data signal, which is a data signal of a frame, through a plurality of data lines connected thereto, and stores the first data signal during a frame period of the frame, where the pixels simultaneously emit light based on a driving current corresponding to a second data signal, which is a data signal of a previous frame, where the frame period includes a scan period, during which the first data signal is stored, and a light emission period, during which the light is emitted based on the second data signal, the scan period and the light emission period overlap each other in the frame period.
Claims17
An organic light emitting diode display comprising:
- a plurality of pixels which receives a first data signal, which is a data signal of a frame, through a plurality of data lines connected thereto, and stores the first data signal during a frame period of the frame, wherein the pixels simultaneously emit light based on a driving current corresponding to a second data signal, which is a data signal of a previous frame,
- wherein
- the frame period comprises a scan period, during which the first data signal is stored, and a light emission period, during which the light is emitted based on the second data signal,
- the scan period and the light emission period overlap each other in the frame period, and
- each of the plurality of pixels comprises:
- a first transistor connected to a corresponding data line of the plurality of data lines and a first node;
- a first capacitor connected between the first node and a second node;
- a second capacitor connected between a third node and a fourth node;
- a second transistor connected between the second node and the third node;
- a third transistor comprising a gate electrode connected to the fourth node, a source electrode to which a first power source voltage is transmitted, and a drain electrode connected to a fifth node;
- a fourth transistor which transmits an initialization voltage to the fifth node;
- and
- a fifth transistor connected between the third transistor and an organic light emitting diode.
A method of driving an organic light emitting diode display comprising a plurality of pixels, the method comprising:
- transmitting a first data signal, which is a data signal of a frame, to the plurality of pixels through a plurality of data lines connected to the plurality of pixels during a frame period of the frame, and storing the first data signal in a first capacitor of each of the plurality of pixels during a scan period in the frame period;
- and
- simultaneously emitting light from a plurality of organic light emitting diodes of the plurality of pixels based on a driving current corresponding to a second data signal, which is a data signal of a previous frame, during a light emission period in the frame period,
- wherein the scan period and the light emission period overlap each other in the frame period, and
- each of the plurality of pixels comprises:
- a first transistor connected to a corresponding data line of the plurality of data lines and a first node;
- the first capacitor connected between the first node and a second node;
- a second capacitor connected between a third node and a fourth node;
- a second transistor connected between the second node and the third node;
- a third transistor comprising a gate electrode connected to the fourth node, a source electrode to which a first power source voltage is transmitted, and a drain electrode connected to a fifth node;
- a fourth transistor which transmits an initialization voltage to the fifth node;
- and
- a fifth transistor connected between the third transistor and an organic light emitting diode.
Dependencies are inferred from the claim text.