Abstract:
An organic light emitting display device includes a display panel including a plurality of pixels, a scan driver configured to provide a scan signal to the pixels, a data driver configured to provide a data signal to the pixels, a sensing circuit configured to sense a sensing current flowing through the pixels according to a sensing reference voltage applied to the pixels, and a controller configured to calculate a sensing current variation from the sensing current, and configured to adjust the sensing current variation based on a variation data of the pixels to compensate an input image data.
Abstract:
An organic light emitting display device is disclosed. The organic light emitting display device includes a substrate, a first electrode, a pixel defining layer, a first hydrophobic pattern, at least one charge transport layer, a second hydrophobic pattern, an organic light emitting layer and a second electrode. The substrate has a pixel region and a non pixel region surrounding the pixel region. The first electrode, the at least one charge transport layer and the organic light emitting layer are disposed on the substrate in the pixel region, while the pixel defining layer, the first hydrophobic pattern and the second hydrophobic pattern are disposed on the substrate in the non pixel region. The charge transport layer of one pixel is separated from a charge transport layer of another pixel by the first and second hydrophobic patterns to prevent crosstalk phenomenon.
Abstract:
A method of operating an organic light emitting diode (OLED) display device and an OLED display using the method are disclosed. In one aspect, input data is received, the input data is converted into mapped data based on random data mapping information, one sub-frame pattern is selected from a plurality of sub-frame patterns based on the random data mapping information, and an image is formed for the display device based on the mapped data and the selected sub-frame pattern.
Abstract:
In a method of sensing degradation of pixels in an organic light emitting diode (OLED) display device, the method includes: generating degradation sensing data for the pixels by sensing the degradation of the pixels; generating degradation estimation data for the pixels based on input image data for the pixels; setting a degradation baseline for each sensing channel based on the degradation estimation data; and determining degrees of degradation of the pixels based on a difference between the degradation sensing data and the degradation baseline.
Abstract:
A thin film transistor (TFT) substrate which may facilitate subsequent TFT processing by reducing an elevation difference on the top surface of the substrate is disclosed. Aspects include an organic light-emitting apparatus including the TFT substrate, a method of manufacturing the TFT substrate, and a method of manufacturing the organic light-emitting apparatus. In one aspect the TFT substrate includes: a substrate; a height adjusting layer that is disposed on the substrate and has a thickness in a first region greater than a thickness in a second region; and a TFT that is formed on the height adjusting layer to correspond to the second region of the height adjusting layer.
Abstract:
A display device includes a display panel including pixels; a sensor configured to generate sensing data by measuring a current flowing through each of the pixels based on a reference voltage; and a compensator to generate stress data by calculating stress of the pixels based on input data provided from an external component and to generate degradation data by compensating a variation of the sensing data based on the stress data.
Abstract:
A thin film transistor (TFT) substrate which may facilitate subsequent TFT processing by reducing an elevation difference on the top surface of the substrate is disclosed. Aspects include an organic light-emitting apparatus including the TFT substrate, a method of manufacturing the TFT substrate, and a method of manufacturing the organic light-emitting apparatus. In one aspect the TFT substrate includes: a substrate; a height adjusting layer that is disposed on the substrate and has a thickness in a first region greater than a thickness in a second region; and a TFT that is formed on the height adjusting layer to correspond to the second region of the height adjusting layer.
Abstract:
A thin-film transistor substrate may include an electrical wiring structure that includes a first electrode, which may be a source electrode, a drain electrode, or a capacitor electrode. The thin-film transistor substrate may further include a first insulating layer that directly contacts a first side of the first electrode. The thin-film transistor substrate may further include a second insulating layer that directly contacts a second side of the first electrode opposite the first side of the first electrode. The thin-film transistor substrate may further include a first filling layer that is disposed between the first insulating layer and the second insulating layer.
Abstract:
A display device with reduced dynamic false contouring effect is disclosed. In one aspect, the device includes a display unit including a plurality of pixels and a timing controller. The timing controller is configured to determine a grayscale value of an image frame based on a grayscale distribution of the image frame. The controller is further configured to determine an arrangement of sub-frames as a driving mode based on the determined grayscale.
Abstract:
A thin film transistor (TFT) substrate having reduced differences in heights in areas thereof so as to facilitate subsequent processing is disclosed. In one aspect, the TFT substrate includes a substrate having a first area in which a TFT is not disposed and a second area in which a TFT is disposed, a height adjustment layer disposed on the substrate in an area corresponding to at least a part of the first area. The TFT substrate also includes a TFT disposed on the substrate in an area corresponding to the second area.