Abstract:
A scan driver may include a first stage, a second stage, and a third stage. The first stage may include a first output transistor. The first output transistor may have a first buffer value. The second stage may be electrically connected to the first output transistor and may include a second output transistor. The second output transistor may have a second buffer value. The third stage may be electrically connected to the second output transistor and may include a third output transistor. The third output transistor may have a third buffer value. At least one of the second buffer value and the third buffer value may be unequal to the first buffer value.
Abstract:
A driver includes a first circuit to output a scan signal and a second circuit to output an emission control signal. The first circuit outputs the scan signal based on a first set of clock signals, and the second circuit outputs the emission control signal based on a second set of clock signals. The first set of clock signals and the second set of clock signals have at least one same clock signal and at least one different clock signal. The second circuit receives the scan signal and outputs the emission control signal based on the scan signal. The first circuit may be a scan driver and the second circuit may be an emission control driver of a display device.
Abstract:
A pixel according to an embodiment of the present invention includes an organic light emitting diode (OLED), a first transistor for controlling an amount of current supplied from a first power supply coupled thereto to the OLED via a second node to correspond to a voltage applied to a first node, a first capacitor coupled between the first node and the second node, a second capacitor coupled between the first power supply and the first node, and a second transistor coupled between the second node and a data line and turned on when a scan signal is supplied to a scan line.
Abstract:
A stage circuit includes first and second supply units. The first supply unit outputs a scan signal to a first output terminal. The second supply unit outputs an emission control signal to a second output terminal. The second supply unit includes a first transistor and a second transistor. The first transistor is between a first power source and the second output terminal, and has a gate electrode coupled to a first node. The second transistor is between the second output terminal and a second power source, and has a gate electrode coupled to a second node. Third and fourth transistors are coupled in series between the first power source and first node. A gate electrode of the third transistor is coupled to the third input terminal, and a gate electrode of the fourth transistor is coupled to the sixth input terminal.
Abstract:
According to exemplary embodiments of the present disclosure, a capacitor may be connected to a gate electrode of a transistor. The capacitor includes a first gate electrode connected to the gate electrode of the transistor, a gate insulation layer formed on the first gate electrode, and an upper electrode formed on the gate insulation layer. The upper electrode is formed to cover a region where the first gate electrode and the upper electrode are overlapped. The capacitor is applicable to at least one of a light emitting driving circuit and a scan driving circuit, and at least one of the light emitting driving circuit and the scan driving circuit may be included in a display device.