G09G2320/045

Display device
11545095 · 2023-01-03 · ·

One or more embodiments of the present disclosure provides a display device. The display device includes a display panel which includes a plurality of pixels; a threshold voltage sensing circuit which senses a threshold voltage of a light emitting diode included in the plurality of pixels, a data compensating circuit which corrects a data signal in accordance with a variation of the threshold voltage and accumulated data to generate a corrected data signal, and a data driver which generates a data voltage in accordance with the corrected data signal to output the data voltage to the display panel, in which the data compensating circuit periodically corrects the data signal in accordance with a look-up table in which a relationship of the variation of the threshold voltage and the accumulated data is described during an aging period to generate the corrected data signal. The display device according to the present disclosure improves an image quality of the display.

SIMULTANEOUS EMISSION PIXEL COMPENSATION CIRCUIT AND DISPLAY PANEL

The present application provides a simultaneous emission pixel compensation circuit and a display panel. Through adopting a transistor with a double-gate structure as a driving transistor, and through a bottom gate to regulate a threshold voltage of the driving transistor, compensation of positive and negative drift of the threshold voltage of the driving transistor is realized. Through introducing simultaneous emission technology and adopting a global signal to perform corresponding control, a number of a scan signal to scan row by row is decreased to only one, such that a circuit structure is simple and a number of transistors required is less, thereby facilitating integration in a panel.

DISPLAY APPARATUS AND DRIVING METHOD THEREFOR
20220415259 · 2022-12-29 ·

A display apparatus and driving method therefor. The apparatus comprises light emitting element, pixel circuit, scan signal line, data signal line, initial signal line, light emission control line, first power source line, and first reset line to third reset line. The pixel circuit comprises: first reset sub-circuit configured to provide a signal of the initial signal line to a first node; node control sub-circuit configured to provide a signal of the data signal line to a second node, compensate for the first node until a voltage thereof satisfies a threshold condition, provide a signal of the second node to the third node; light emission control sub-circuit configured to provide a signal of the first power source line to the second node and a signal of the third node to light emitting element; second reset sub-circuit configured to provide a signal of the initial signal line to light emitting element.

ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF
20220415264 · 2022-12-29 · ·

An organic light emitting display device includes an organic light emitting element emitting light, a driving transistor configured to control a driving current supplied to the organic light emitting element, a first switch transistor configured to transfer a voltage input through a data line to a first node of the driving transistor, a second switch transistor turned on/off simultaneously with the first switch transistor to connect a second node of the driving transistor and a sensing line, a sensing capacitor connected to the sensing line to store a sensing voltage during an organic light emitting element threshold voltage sensing period, and a first switch configured to disconnect the sensing capacitor from the sensing line during a period in which sensing data for sensing a threshold voltage of the organic light emitting element is input to the data line and to connect the sensing capacitor to the sensing line during the organic light emitting element threshold voltage sensing period.

PIXEL AND A DISPLAY DEVICE INCLUDING THE SAME
20220415991 · 2022-12-29 ·

A pixel including: a light emitting diode; a first capacitor connected between first and second nodes; a second capacitor connected between the second node and a third node; a first transistor including a first electrode connected to the second node, a second electrode connected to an anode of the light emitting diode, and a gate electrode connected to the first node; a second transistor including a first electrode connected to the third node, a second electrode connected to a reference voltage line, and a gate electrode connected to a first scan line; a third transistor including a first electrode electrically connected to the first node, a second electrode connected to the reference voltage line, and a gate electrode connected to a second scan line; and a fourth transistor including a first electrode connected to a data line, a second electrode connected to the third node, and a gate electrode connected to a third scan line.

Display panel, driving method thereof and display device

Provided are a display panel, a driving method thereof and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module and a compensation module. The data write module is configured to selectively provide a data signal for the drive module. The drive module is configured to provide a drive current for the light-emitting element and includes a drive transistor. The compensation module is configured to compensate for the threshold voltage of the drive transistor. The operation of the pixel circuit includes a bias stage. During the bias stage, the data write module and the drive module are on, the compensation module is off, and the data signal is written to the drain of the drive transistor to adjust the bias state of the drive transistor.

Touch panel and touch screen having pixel circuit with reset module

The present disclosure relates to a touch panel. The touch panel includes a plurality of pixel units, and each of the plurality of pixel units includes a pixel circuit. The pixel circuit of each of the plurality of pixel units includes a driver, a writer, a power supply, a reset module, a controller and a compensator. The power supply includes a fourth switching transistor and a second capacitor. A gate of the fourth switching transistor is input with a light emitting control signal, and a source of the fourth switching transistor is input with a power supply signal. The second capacitor includes a first electrode connected to the driver; and a second electrode input with the power supply signal.

Display panel and display device

The present disclosure provides a display panel, including: a pixel circuit, and a light-emitting element, that the pixel circuit includes a driving transistor configured to provide a driving current for the light-emitting element; a working process of the pixel circuit includes a data writing stage, in which a gate of the driving transistor receives a data signal, and a bias adjustment stage, in which a source or drain of the driving transistor receives a bias adjustment signal; and the pixel circuit has a frame refresh frequency F1, and a data refresh frequency including a first data refresh frequency F11 and a second data refresh frequency F22, that one second data refresh period includes N11 bias adjustment stages, a bias adjustment signal V11 is inputted in a first bias adjustment stage, and a bias adjustment signal Vi is inputted in an i-th bias adjustment stage, where V11≠Vi.

PIXEL CIRCUIT, METHOD FOR DRIVING THE SAME, DISPLAY SUBSTRATE, AND DISPLAY DEVICE
20220406243 · 2022-12-22 ·

The present disclosure provides a pixel circuit, a method for driving the same, a display substrate, and a display device, which belong to the field of display technologies. The pixel circuit includes a compensating circuit which can adjust an electric potential of a second control node (a gate of a transistor controlling conduction or non-conduction between a first connection node and a second connection node) based on an electric potential of a first control node, and adjust an electric potential of the second control node based on an electric potential of the second connection node. When the pixel circuit is driven, electric potential of each control signal can be controlled, such that influence of a threshold voltage of a transistor on an electric potential finally output to the second control node is relatively small, that is, influence of drifting of a threshold voltage on display uniformity is reduced. The display device according to the present disclosure achieves a good display effect.

ELECTRONIC APPARATUS AND CONTROL METHOD THEREOF

According to an embodiment of the disclosure, an electronic apparatus may include: a display configured to display an image; and a processor configured to: adjust, for each of sub areas having a specified size in an image quality degradation anticipation area of an image, a pixel value of at least one adjustment pixel among a plurality of pixels included in each sub area, and change the adjustment pixel into another pixel among the plurality of pixels, while maintaining a representative value of the plurality of pixels included in each sub area.