Abstract:
An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
Abstract:
A pixel circuit includes: a driving switching element; a data initializer to initialize a voltage of a control electrode of the driving switching element; a data writer to write a data voltage to the driving switching element; an organic light emitting element; an organic light emitting element initializer to initialize an anode electrode of the organic light emitting element to a second initialization voltage based on an organic light emitting element initialization gate signal; and a light emitting controller to control an emission of the organic light emitting element. The organic light emitting element initializer includes: a control electrode to receive the organic light emitting element initialization gate signal; an input electrode to receive the second initialization voltage; an output electrode connected to the anode electrode; and a conductive layer to receive a compensation control signal that is different from the organic light emitting element initialization gate signal.
Abstract:
An organic light emitting diode display includes: a substrate; an overlapping layer on the substrate; a pixel on the substrate and the overlapping layer; and a scan line, a data line, a driving voltage line, and an initialization voltage line that are connected to the pixel. The pixel includes: an organic light emitting diode; a second transistor connected to the scan line and the data line; a driving transistor including a gate electrode, an input terminal, and an output terminal, and to apply a current to the organic light emitting diode from the output terminal; and a voltage application transistor to apply a voltage to the overlapping layer. An output of the second transistor is connected to the input terminal of the driving transistor, and the overlapping layer is between the driving transistor and the substrate while overlapping with the driving transistor on a plane.
Abstract:
An organic light-emitting diode (OLED) display is disclosed. In one aspect, the OLED display includes a substrate and an active pattern formed over the substrate. The OLED display also includes first and second gate electrodes formed over the active pattern. The first gate electrode defines a first transistor together with the active pattern. The second gate electrode defines a second transistor and a third transistor together with the active pattern. The OLED display further includes a first conductive pattern formed over the first and second gate electrodes. The first conductive pattern overlaps at least a portion of the second and/or third transistors so as to define a parasitic capacitor.
Abstract:
An organic light emitting diode display includes: a substrate; a substrate insulating layer on the substrate; a capacitor on the substrate insulating layer; a driving thin film transistor including a driving gate electrode connected to the capacitor; and an organic light emitting element connected to the driving thin film transistor, where the capacitor includes: a first capacitor electrode on the substrate insulating layer; a second capacitor electrode on the first capacitor electrode; a capacitor insulating layer between the first capacitor electrode and the second capacitor electrode and contacting the first capacitor electrode and the second capacitor electrode, the capacitor insulating layer having a higher dielectric constant than the substrate insulating layer; and an auxiliary electrode contacting at least one of the first capacitor electrode or the second capacitor electrode.
Abstract:
An organic light emitting display device includes an (i−1)th pixel, an i-th pixel, and an (i+1)th pixel, each including an organic light emitting diode and a driving transistor to control a driving current flowing through the organic light emitting diode. A first node of the i-th pixel, to which a control electrode of the driving transistor of the i-th pixel is connected, is initialized to an initialization voltage in synchronization with an (i−1)th scan signal applied to the i-th pixel, and an anode of the organic light emitting diode of the i-th pixel is initialized to the initialization voltage in synchronization with an i-th scan signal applied to the (i+1)th pixel.
Abstract:
An organic light emitting diode (OLED) display including a first pixel, a second pixel, and a third pixel disposed in a matrix and first to third driving voltage lines configured to transmit a driving voltage to the first to third pixel, respectively. A width of one driving voltage line among the first to third driving voltage lines is different from the width of the other driving voltage lines.
Abstract:
A backplane for a flat panel display apparatus, includes: a thin film transistor (TFT) on a substrate and including an active layer, a gate electrode, a source electrode, and a drain electrode; a light-blocking layer between the substrate and the TFT; a first insulating layer between the light-blocking layer and the TFT; a capacitor including a first electrode on the same plane as the light-blocking layer, and a second electrode on the first electrode, wherein the first insulating layer is between the first electrode and the second electrode; and a pixel electrode on the same plane as the light-blocking layer.
Abstract:
A capacitor positioned on a substrate insulating layer positioned on a substrate. The capacitor includes a first capacitor electrode positioned on the substrate insulating layer, a second capacitor electrode positioned on the first capacitor electrode, and a capacitor insulating layer coming into contact with the first capacitor electrode and the second capacitor electrode between the first capacitor electrode and the second capacitor electrode, and having a higher dielectric constant than the substrate insulating layer.