A display panel is disclosed. The display panel includes a de-multiplexing switch group, a signal transmission line, a first control line, and a second control line. The first control line and the second control line are connected to the de-multiplexing switch group. Voltage levels of signals of the first control line and the second control line are opposite to each other, and a number of groups of the first control line and the second control line which intersect the signal transmission line is greater than or equal to zero. Pictures of display panels can be prevented from being affected by intersections of lines.

In a display system, a display device includes a plurality of gate lines, a plurality of source lines and a plurality of common electrodes used for both image display and touch detection. A first acquirer acquires a specific frequency to be avoided. A second acquirer acquires a frequency of a control signal used to control the display device. When the specific frequency and the frequency of the control signal satisfy a changing condition, a changing unit changes the frequency of the control signal.

A display device including a display panel and a display driving circuit to control the display panel are provided. The display driving circuit includes a light emitting control driver to input a light emitting signal for controlling the brightness of the display panel into the display panel. When a light emitting control signal including a plurality of pulses is input into the light emitting control driver to control the light emitting signal, and when the operating frequency of the light emitting control signal is changed, pulse widths corresponding to at least two pulses of pulses included in the light emitting control signal may be adjusted to differ from each other in a frame after the target time point to change the operating frequency.

A scan line to which a selection signal or a non-selection signal is input from its end, and a transistor in which a clock signal is input to a gate, the non-selection signal is input to a source, and a drain is connected to the scan line are provided. A signal input to the end of the scan line is switched from the selection signal to the non-selection signal at the same or substantially the same time as the transistor is turned on. The non-selection signal is input not only from one end but also from both ends of the scan line. This makes it possible to inhibit the potentials of portions in the scan line from being changed at different times.

A color electrophoretic display that includes sets of duplicative waveforms to reduce visible artifacts during image updates. Such methods include driving extra pixels where the boundary between a driven and undriven area would otherwise lead to artifact by providing paired sets of driving instructions, allowing the undriven area to be driven while maintain the desired (undriven) optical state.

A pixel includes: a light emitting element; a first transistor which drives the light emitting element; a second transistor electrically connected between a gate node of the first transistor and a data line; a third transistor electrically connected between a first node of the first transistor and an initialization voltage line; and a storage capacitor electrically connected between the gate node and the first node of the first transistor. Here, upon an operation in a variable frame mode, an initialization voltage is applied to the initialization voltage line, and the initialization voltage has a first voltage level. In addition, in a data writing period during which the storage capacitor is charged with an electric charge, the initialization voltage further includes a pulse voltage such that the initialization voltage has a second voltage level that is greater than the first voltage level.

A variety of methods for driving electro-optic displays so as to reduce visible artifacts are described. Such methods include (a) applying a first drive scheme to a non-zero minor proportion of the pixels of the display and a second drive scheme to the remaining pixels, the pixels using the first drive scheme being changed at each transition; (b) using two different drive schemes on different groups of pixels so that pixels in differing groups undergoing the same transition will not experience the same waveform; (c) applying either a balanced pulse pair or a top-off pulse to a pixel undergoing a white-to-white transition and lying adjacent a pixel undergoing a visible transition; (d) driving extra pixels where the boundary between a driven and undriven area would otherwise fall along a straight line; and (e) driving a display with both DC balanced and DC imbalanced drive schemes, maintaining an impulse bank value for the DC imbalance and modifying transitions to reduce the impulse bank value.

Provided is a source driver that is used for supplying a voltage corresponding to a gradation value of a video signal to a data line of a display unit, the source driver including: a resistor having an end to which a predetermined power supply voltage is applied; and a current source that is connected to another end of the resistor, the amount of current of the current source being controlled according to the gradation value of the video signal, the voltage corresponding to the gradation value of the video signal being supplied from the other end of the resistor.

A driving method is configured to drive a display device, and the display device includes a display array and a light valve array. The display array includes rows of sub-pixels, the light valve array includes a plurality of sub light valves, a respective one sub light valve of the plurality of sub light valves corresponds to at least one row of sub-pixels, and the light valve array is on a light-emitting side of the display array. The driving method includes: any sub-pixel in the at least one row of sub-pixels being in a response phase of a display operation, the respective one sub light valve being in a light-shielding state, and the respective one sub light valve corresponding to the at least one row of sub-pixels.

Disclosed are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area. The display area includes scan lines arranged in a second direction and each extending in a first direction, data lines arranged in the first direction and each extending in the second direction, and pixel driver circuits defined by the scan lines and the data lines intersecting each other, the first direction intersecting the second direction. The non-display area includes a step area and a compensation unit, and the compensation unit is located between the step area and a last row of pixel driver circuits. The compensation unit is connected to a corresponding data line and configured to transmit a leakage current compensation signal to the data line.