Abstract:
A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.
Abstract:
A method of operating a display device involves detecting whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate. An output buffer drivability of a data driver included in the display device may be set according to the detected frame mode, and an image is displayed by outputting data voltages corresponding to the image data with slew rates corresponding to the set output buffer drivability. Power consumption in output buffer amplifiers may be selectively lowered by setting a relatively low output buffer drivability corresponding to a relatively low slew rate.
Abstract:
An image processing controller of a display apparatus includes: a memory configured to store a plurality of dithering maps; and a dithering unit configured to receive an image signal and a control signal and to output a data signal, where the dithering unit selects a frame set of H frame sets based on the control signal, where H is a positive integer, and each of the H frame set corresponds to the plurality of dithering maps in a predetermined order, and the dithering unit selects dithers the image signal sequentially with reference to the plurality of dithering maps in the selected frame set, and outputs the dithered signal as the data signal.
Abstract:
A display device includes: a display panel configured to display an image; a timing controller configured to output line configuration signals, frame configuration signals, and image signals; a plurality of data drivers each of which is configured to receive the line configuration signals, the frame configuration signals, and the image signals and provide a data voltage corresponding to the image signals to the display panel according to the line configuration signals and the frame configuration signals; a high speed driving line configured to connect the timing controller and one of the data drivers and transfer the image signals; and a low speed driving line configured to connect the timing controller and the data drivers and transfer the line configuration signals.
Abstract:
A display device includes: a timing controller which receives a data control signal from, or outputs the data control signal to, an external device through a wiring, and selectively outputs a power control signal, a display device data signal and a common voltage control signal to a first or second serial communication wiring based on a driving mode determined based on the data control signal; a memory unit which stores the display device data signal, receives the display device data signal from, or outputs the display device data signal to, the timing controller through the first serial communication wiring; and a power generator which receives or outputs the power control signal or the common voltage signal from or to the timing controller through the second serial communication wiring, and generates a voltage adjusted by the power control signal and a common voltage adjusted by the common voltage control signal.
Abstract:
A display apparatus includes a display panel, a timing controller, a data driver, and a gate driver. The timing controller receives image data at a number of frames per second of a first level and generates a gate control signal and a data control signal. The timing controller includes an image converter that operates in film mode or normal mode when the input image data are moving image data, and that outputs film image data at a number of frames per second of second level lower than the first level during the film mode. The data driver applies a data voltage corresponding to the film image data to the display panel based on the data control signal. The gate driver applies a gate voltage to the display panel based on the gate control signal. The display panel operates at a frequency of the second level during the film mode.
Abstract:
A display device includes a display panel including a plurality of pixels respectively connected to a plurality of gate lines and to a plurality of data lines, a gate driving circuit configured to drive the plurality of gate lines, a data driving circuit configured to drive the plurality of data lines, a timing controller configured to provide a data signal to the data driving circuit, configured to control the gate driving circuit, and configured to output a voltage control signal, and a voltage generator configured to generate a plurality of reference voltages in response to the voltage control signal, wherein the data driving circuit is further configured to convert the data signal into a grayscale voltage based on the plurality of reference voltages, wherein a voltage level of each of the reference voltages is changed periodically within a range.