Abstract: Acetylated cellulose ether and an article including the same. The acetylated cellulose ether has a degree of substitution (DS) of alkyl group of 1 to 2, a molar substitution (MS) of hydroxyalkyl group of 0 to 1, and a degree of substitution (DS) of acetyl group of 1 to 2.

Abstract: A display device communicating with a microcontrol unit by data, including: a panel with a plurality of pixels; and a display driver operating to drive the panel, in which the display driver includes: a data bus with a plurality of widths; a register storing an index and parameter input from the microcontrol unit through the data bus; and a bus width control circuit selecting one of the plurality of widths with reference to the index and parameter stored in the register and conducting data communication with the microcontrol unit by means of the selected bus width. An index or parameter is introduced for transferring information to configure a data bus width, so that it is possible to reduce the number of mode set pins for determining the data bus width.

Abstract: A source driver includes a control unit, a data selecting unit, a gamma circuit, a level shifter and a driving buffer unit. The control unit compares a frame count value with a predetermined value N, where N is a natural number larger than two, and outputs a data select signal and a driver control signal based on the comparison. The data selecting unit outputs one of input data and black data in response to the data select signal. The gamma circuit generates a grayscale voltage based on selected data from the data selecting unit and the level shifter generates a driving voltage based on the grayscale voltage. The driving buffer unit provides an output voltage based on the driving voltage to a data line of a display device in response to the driver control signal.

Abstract: An exemplary embodiment of the present invention provides a pulse generator generating a control signal to control a latch unit included in a source driver for sequentially latching input data applied to a source data line of a display device, wherein the pulse generator includes a latch circuit latching an input signal in response to an N-divided clock signal and applying the latched input signal as an output signal, and a logic unit generating a pulse signal by logically multiplying the input signal by the N-divided clock signal, wherein the output signal is provided as an input signal to the latch circuit of another pulse generator, and the pulse signal is provided to the latch unit as the control signal.

Abstract: A display device communicating with a microcontrol unit by data, including: a panel with a plurality of pixels, and a display driver operating to drive the panel, in which the display driver includes: a data bus with a plurality of widths; a register storing an index and parameter input from the microcontrol unit through the data bus; and a bus width control circuit selecting one of the plurality of widths with reference to the index and parameter stored in the register and conducting data communication with the microcontrol unit by means of the selected bus width.. An index or parameter is introduced for transferring information to configure a data bus width, so that it is possible to reduce the number of mode set pins for determining the data bus width.

Abstract: A source driver includes a control unit, a data selecting unit, a gamma circuit, a level shifter and a driving buffer unit. The control unit compares a frame count value with a predetermined value N, where N is a natural number larger than two, and outputs a data select signal and a driver control signal based on the comparison. The data selecting unit outputs one of input data and black data in response to the data select signal. The gamma circuit generates a grayscale voltage based on selected data from the data selecting unit and the level shifter generates a driving voltage based on the grayscale voltage. The driving buffer unit provides an output voltage based on the driving voltage to a data line of a display device in response to the driver control signal.

Abstract: An exemplary embodiment of the present invention provides a pulse generator generating a control signal to control a latch unit included in a source driver for sequentially latching input data applied to a source data line of a display device, wherein the pulse generator includes a latch circuit latching an input signal in response to an N-divided clock signal and applying the latched input signal as an output signal, and a logic unit generating a pulse signal by logically multiplying the input signal by the N-divided clock signal, wherein the output signal is provided as an input signal to the latch circuit of another pulse generator, and the pulse signal is provided to the latch unit as the control signal.

Abstract: Gray-scale values of a display are compensated for by selectively providing a gray-scale value of a current frame of the display or a compensated gray-scale value of the current frame of the display, in response to a difference between the gray-scale value of the current frame of the display and a gray-scale value of a preceding value of the display, relative to a reference value. The compensated gray-scale value may be determined by interpolating values in a lookup table. Associated circuits and liquid crystal displays according to the above-described embodiments are also provided.