The present disclosure relates to a circuit of controlling a common voltage of a liquid crystal panel. According to an embodiment of the present disclosure, a voltage control circuit is configured to provide a common voltage to a common electrode of a liquid crystal panel. The liquid crystal panel includes M rows and N columns of pixel units. Each pixel unit is coupled to the common electrode. The voltage control circuit includes an operational amplifier arranged in a negative feedback configuration. The operational amplifier includes: an input stage, a gain stage and an output stage. The output stage includes a second NMOS transistor and a second PMOS transistor. A gate of the second NMOS transistor receives a first control signal, a drain of the second NMOS transistor is coupled to a gate of a first PMOS transistor, and a source of the second NMOS transistor is coupled to a second reference voltage. A gate of the second PMOS transistor receives a second control signal, a drain of the second PMOS transistor is coupled to a gate of a first NMOS transistor, and a source of the second PMOS transistor is coupled to a third reference voltage.

A light module driving method for a illumination device, wherein the illumination device includes a driving unit, a transformation unit, a compensation and calibration unit and a light module, and the driving unit is configured to output a light driving signal according to a source, wherein the transformation unit is coupled to the driving unit and the light module, and the light driving signal is configured to drive a plurality of lighting zones corresponding to a light-emitting diode (LED) module of the light module, wherein the light module driving method includes transforming, by the transformation unit, the light driving signal into a plurality of modulated light driving signals according to the compensation and calibration unit to drive each lighting zone corresponding to the LED module.

According to one embodiment, a display device includes a display panel including a plurality of pixels arranged in a non-rectangular display area, and a display controller configured to display images in the display area. An opening portion of each of pixels disposed at an edge portion of the display area is light-shielded at an area ratio according to a shape of the display area.

According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.

A display device which can reproduce kinematic parallax and express a high sense of realism without using image display means are provided. The display device includes an image display unit having a stripe structure having subpixels of a plurality of colors disposed so that subpixels of the same color are arranged in a first direction and enabling an observer to observe, through an aperture, an image formed by pixels, each pixel being constituted by the subpixels of a plurality of colors. The aperture has a shape that has been smoothed to reduce a number of corners in which areas of the subpixels of the plurality of colors which can be seen through the aperture are uniform, and in which a numerical aperture decreases along a second direction orthogonal to the first direction. A plurality of the apertures are provided so as not to overlap with each other.

The application discloses a method for adjusting a wide viewing angle, including: obtaining gray scale values of two pixels located in a same column and two adjacent rows; obtaining a view angle value of a wide view angle, and determining a target difference value according to the view angle value; and reducing a gray scale value of one of the two pixels and/or increasing a gray scale value of another one of the two pixels according to the target difference value, to perform wide view angle adjustment of a picture to be displayed, wherein a difference value between the gray scale values of the two pixels after the wide view angle adjustment is greater than or equal to the target difference value. The application also discloses a display panel and a computer readable storage medium.

A method in which a sensor controller is connected to a sensor having an electrode group provided together with a display panel configured to operate in during a variable refresh cycle among a plurality of refresh cycles, and an active stylus performs bidirectional communication with the sensor controller. According to the method, the sensor controller acquires a present refresh cycle among the plurality of refresh cycles of the display panel, generates an uplink signal, which serves as a reference for synchronization corresponding to the acquired present refresh cycle, and transmits the uplink signal to the active stylus, which is not detected as yet or is detected already, at the present refresh cycle.

A display panel driving method, a drive circuit thereof, and a display device. The method comprises: when determined that the picture to be displayed belongs to a high power consumption display picture, providing a touch control and display integrated circuit and power supply management circuit of the display panel with a second reference voltage that is amplified by a first reference voltage and that is provided by an external voltage source, and driving each pixel to ensure the normal display of the high power consumption display picture; and when determined that the picture to be displayed belongs to a low power consumption display picture, directly providing the first reference voltage to the touch control and display integrated circuit and power supply management circuit of the display panel, and driving each pixel within the display panel so as to ensure the normal display of the low power consumption picture.

The disclosure includes multiple data drivers provided for each predetermined number of data lines. Each data driver receives an image signal; generates, based on the image signal, a positive gradation data signal and a negative gradation data signal; outputs one of the positive and negative gradation data signals to one of a first and second data line groups of a display panel; and outputs the other of the positive and negative gradation data signals to the other of the first and second data line groups. The data driver shifts a phase of the negative gradation data signal in a direction delayed with respect to the positive gradation data signal, and controls a slew rate of an output amplifier for outputting the positive gradation data signal to be lower than that of an output amplifier for outputting the negative gradation data signal.

A display driving device for driving a display panel, including a gate line, a data line intersecting with the gate line, and a pixel defined by the gate line and the data line, includes a data driver inputting an image signal to the pixel through the data line, a panel test unit determining the occurrence or not of an error of the gate line or the data line, and a switching unit selectively connecting the data driver or the panel test unit to the display panel.