Abstract:
A display device includes an image analyzing part which determines whether current frame image data includes a crosstalk pattern, and a gamma voltage generator which generates current frame gamma data by applying the asymmetric gamma when the current frame image data do not include the crosstalk pattern, and generates the current frame gamma data by applying a symmetric gamma when the current frame image data includes the crosstalk pattern. The positive polarity and negative polarity data voltages of the asymmetric gamma are asymmetric with each other for each of the grayscales, and the positive polarity and negative polarity data voltages of the symmetric gamma are symmetric with each other for each of the grayscales.
Abstract:
A display apparatus includes a display panel including a plurality of gate lines, a plurality of data lines, and a plurality of subpixels, the subpixels being connected to the gate lines and the data lines, a driving controller configured to analyze input image data and to determine a driving mode from among one of a first driving mode and a second driving mode, a gate driver configured to output gate signals having timings different from one another to the gate lines in the first driving mode and to output gate signals having the same timing to at least two gate lines in the second driving mode, and a data driver configured to output data voltages to the data lines.
Abstract:
A gate driver includes a gate signal generating part, a switching part and a switching controlling part. The gate signal generating part is configured to generate a gate signal including a precharge time and a normal charge time using a compensated gate on voltage and a gate off voltage. The switching part is disposed between the gate signal generating part and a gate line. The switching part is configured to apply a compensated gate signal to the gate line. The switching controlling part is configured to generate a switching control signal for controlling an operation of the switching part.
Abstract:
A display apparatus includes pixels each including first and second sub-pixels having different transmittances from each other under a same gray scale, gate lines commonly connected to the first and second sub-pixels to apply a gate signal to the first and second sub-pixels, a first data line applying a first data signal to one of the first and second sub-pixels, and a second data line applying a second data signal to the other one of the first and second sub-pixels. The first sub-pixel has the transmittance lower than the transmittance of the second sub-pixel, and the second sub-pixel connected to an i-th gate line of the gate lines is disposed between the first sub-pixel connected to the i-th gate line and the first sub-pixel connected to an (i+1)th gate line of the gate lines.
Abstract:
A gate driver includes a gate signal generating part, a switching part and a switching controlling part. The gate signal generating part is configured to generate a gate signal including a precharge time and a normal charge time using a compensated gate on voltage and a gate off voltage. The switching part is disposed between the gate signal generating part and a gate line. The switching part is configured to apply a compensated gate signal to the gate line. The switching controlling part is configured to generate a switching control signal for controlling an operation of the switching part.
Abstract:
A gate driver includes a first shift-register including a plurality of odd-numbered stages which outputs a plurality of odd-numbered original gate signals having a pre-charge pulse and a main-charge pulse in synchronization with a first gate clock signal, a second shift-register comprising a plurality of even-numbered stages which outputs a plurality of even-numbered original gate signals having a pre-charge pulse and a main-charge pulse in synchronization with a second gate clock signal, a first inverter configured to output a first inversion pre-charge control signal having a phase opposite to a phase of a first pre-charge control signal, and a second inverter configured to output a second inversion pre-charge control signal having a phase opposite to a phase of a second pre-charge control signal.
Abstract:
A display device and a driving method is disclosed. The driving method includes receiving an image signal for one frame for one pixel, converting the image signal into at least two data voltages according to at least two gamma curves, applying a first gate signal and a second gate signal to a plurality of gate lines respectively connected to a plurality of subpixels included in one pixel during the frame. The method further includes applying the at least two data voltages to the plurality of subpixels during the frame. A gamma curve for the data voltage applied to one subpixel among the plurality of subpixels includes the at least two different gamma curves and is changed with a period of a first time.