A display panel includes a first substrate and a second substrate. The first substrate includes a plurality of pixel electrodes to which pixel voltages are applied and a shield electrode disposed between the pixel electrodes. A shield voltage is applied to the shield electrode. The second substrate faces the first substrate. The second substrate includes a common electrode to which a common voltage is applied.

A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located around the display area; a circuit element layer including a circuit element in each of the pixel areas and a reference voltage wiring in the non-display area, the reference voltage wiring being electrically coupled to the circuit element; and a display element layer including a first pixel electrode on the circuit element layer in each of the pixel areas, a second pixel electrode located opposite to the first pixel electrode, a plurality of light emitting elements between the first pixel electrode and the second pixel electrode, and a first wiring on the circuit element layer in the non-display area, wherein the first wiring is directly coupled to the reference voltage wiring in the non-display area.

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.

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.

A display device and a driving method thereof are disclosed. The display device includes a subpixel including a light emitting unit including a first electrode, a second electrode, and a plurality of light emitting elements connected between the first electrode and the second electrode, and a driving transistor configured to supply a driving current to the light emitting unit; a detector electrically connected to the light emitting unit to detect a short circuit in the plurality of light emitting elements; and a blocking controller configured to control blocking of the driving current based on an output of the detector. Accordingly, power consumption of the display device may be improved.

A residual DC measurement device of the present invention receives light emitted from a display device and outputs a light reception signal, measures a flicker value of the display device on the basis of the light reception signal output while the flicker measurement image is displayed by the display device and stores the flicker value in a storage as an initial flicker value, subsequently causes the display device to display a predetermined display image for a predetermined display time, causes the display device to display the flicker measurement image again when the predetermined display time elapses, measures the flicker value of the display device on the basis of the light reception signal output while the flicker measurement image is displayed and stores the flicker value in the storage as a posterior flicker value, and calculates a flicker change amount by calculating the posterior flicker value stored in the storage and the initial flicker value as an index value representing the residual DC.

A display device including a pair of substrates, a display medium formed between the pair of substrates and including charged particles encapsulated therebetween such that an image is displayed by moving the charged particles electrophoretically, a drive unit that applies a voltage to the display medium, and a display control unit that controls a display of the display medium. After data communication for rewriting a display of a display device commences and before the data communication ends, the display control unit commences rewriting using a first waveform, and after completion of the data communication and after the rewriting using the first waveform, the display control unit executes rewriting using a second waveform.

The present disclosure can provide a pixel circuit, a driving method thereof and a display device. By arranging a data write circuit, a driving control circuit, a light-emitting control circuit and a light-emitting device, the data write circuit provides a data signal of the data signal end for the driving control circuit in response to a signal of a first scanning signal end; the driving control circuit generates a driving current according to the data signal; and the light-emitting control circuit connects the driving control circuit with a cathode of the light-emitting device in response to a signal of a second scanning signal end, so that the driving current is input into the light-emitting device to control the light-emitting device to emit light. Besides, a voltage of the first power end is larger than that of the second power end.

The present disclosure relates to a display device and a driving method thereof, wherein a refresh rate of pixels is controlled at a reference frame frequency in a normal driving mode, and the refresh rate of the pixels is controlled at a frequency lower than the reference frame frequency in a low speed driving mode. In the low speed driving mode, park data is transmitted to a data driving circuit during at least one vertical blank period.

A pixel circuit, a display panel, a display device, and a driving method. The pixel circuit includes a light emitting element, a driving transistor, a light emitting control circuit, a reset circuit, a threshold compensation circuit, a first data write circuit, and an initializing circuit. The reset circuit includes a first transistor, the first data write circuit includes a third transistor, and a channel length-width ratio of the first transistor is greater than a channel length-width ratio of the third transistor.