A display device including: a display panel including first and second display areas, and including pixels in the first and second display areas; and a data driver to output data signals to the pixels through a channels arranged along a first direction, wherein the channels include a first channel group corresponding to the first display area and a second channel group corresponding to the second display area, wherein some of the pixels emit light in different colors and have a first pixel arrangement along the first direction, and based on channel selection information about the first or second channel groups, the data driver outputs first data signals in a first output order along the first direction corresponding to the first pixel arrangement through the first channel group, and outputs second data signals in a second output order different from the first output order through the second channel group.

An organic light emitting display device and a driving method thereof are disclosed. The display device has sub-pixels of multiple colors. In one aspect, the organic light emitting display device detects sub-pixels which are positioned at the edges of the panel. Data for the sub-pixels on the edges are reduced so that colors on the edges are less observable.

To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.

An operational amplifier applicable to a display device is provided. The operational amplifier having multiple output stages. The operational amplifier includes an input stage, an output stage selection module and a plurality of output stages. The output stage selection module is coupled to the input stage. Each of the output stages is coupled to the output stage selection module and is coupleable to drive a corresponding one of a plurality of loads. The output stage selection module is configured to selectively couple or discouple each of the output stages respectively to the input stage according to a plurality of selection signal. Furthermore, a load driving apparatus and a grayscale voltage generating circuit are also provided.

An active matrix organic light-emitting diode (AMOLED) display device and a controlling method thereof. The AMOLED display device (100) comprises a system power IC (110), a driver IC (120), an AMOLED panel (130), a power line (111) and a feedback line (112). The AMOLED panel (130) includes a plurality of pixel circuits. The system power IC (110) outputs a positive power supply voltage (ELVdd1) to the plurality of pixel circuits via the power line (111), and the driver IC (120) detects a positive power supply voltage (ELVdd2) actually applied to the plurality of pixel circuits via the feedback line (112) and compensates for data voltages (Vdata) based on the positive power supply voltage (ELVdd2) actually applied to plurality of pixel circuits. The driving chip detects the positive power supply voltage (ELVdd2) actually applied to plurality of pixel circuits, and automatically adjusts a minimum grayscale voltage (VREG1) and a maximum grayscale voltage (VGS) based on the positive power supply voltage (ELVdd2) actually applied to the plurality of pixel circuits, such that a certain difference value can be maintained between the data voltage (Vdata) and the positive power supply voltage (ELVdd2) actually applied to the plurality of pixel circuits, thus eliminating Gamma offset.

A liquid crystal display driving method provided includes the following steps: acquiring a current gray level value of a current frame image; determining a gray level of the current gray level value; if the current gray level value is the high gray level, then determining whether to perform an overvoltage driving according to a first gray level difference threshold value; if the current gray level value is the low gray level, then determining whether to perform the overvoltage driving according to a second gray level difference threshold value. The present invention can precisely determine whether to perform the overvoltage driving on the pixel electrode.

A level shifter, a digital-to-analog converter (DAC), and a buffer amplifier, and a source driver and an electronic device including the same are provided. The source driver includes a level shifter configured to receive digital bits and provide a level-shifted output signal; a DAC including a resistor string configured to provide a plurality of gradation voltages formed by an upper limit voltage and a lower limit voltage being received through one end and the other end, and an N-type metal oxide semiconductor (NMOS) switch and a P-type MOS (PMOS) switch configured to be controlled by the level-shifted output signal and output a gradation voltage corresponding to the level-shifted output signal; and an amplifier configured to amplify a signal provided by the digital-to-analog converter, and the lower limit voltage is provided to a body electrode of the NMOS switch.

An electronic device includes a display panel. The display panel includes a number of pixels, each of which includes a driving thin-film-transistor (TFT) and a light-emitting diode. Compensation circuitry external to the display panel applies offset data to pixel data for each pixel of the plurality of pixels before the pixel data is provided to the plurality of pixels.

A display drive circuit is provided, including a line buffer, a lever converter, a D/A converter, a Gamma reference voltage generator, and a buffer. The Gamma reference voltage generator has a first duty time and second duty time. In the first duty time, the Gamma reference voltage generator outputs the Gamma voltage to the buffer to charge pixel electrodes of a display having the display drive circuit. In the second duty time, the Gamma reference voltage generator outputs a common voltage to the buffer.

A display driver includes an image processing circuit and a driver circuit. The image processing circuit is configured to: receive input image data corresponding to an input image; generate first subpixel rendered data from a first part of the input image data for a first display region of a display panel using a first setting; and generate second subpixel rendered data from a second part of the input image data for a second display region of the display panel using a second setting different from the first setting. The first pixel layout is different than the second pixel layout. The driver circuit is configured to update the first display region of the display panel based at least in part on the first subpixel rendered data and update the second display region of the display panel based at least in part on the second subpixel rendered data.