G09G2300/0847

DISPLAY PANEL, DRIVING METHOD AND DRIVING CIRCUIT
20210333664 · 2021-10-28 ·

The present application discloses a display panel, a driving method and a driving circuit. The display panel includes a plurality of data lines, a plurality of gate lines, the gate lines and the data lines being intersected with each other; the display panel further includes a plurality of pixels, respectively driven by corresponding gate lines and data lines, each pixel includes a corresponding pixel electrode. The pixel electrode of the pixel overlaps with adjacent another gate line to form an overlap region.

PIXEL CIRCUIT, DISPLAY PANEL AND DISPLAY DEVICE

A display panel, a display panel and a pixel circuit are proposed. The pixel circuit includes a first TFT, a second TFT, a first capacitor, a second capacitor, and a lighting device. The feedback compensation signal and the first control signal have a same phase but different directions. The second TFT includes a gate receiving a first control signal, a source receiving a data signal, and a drain electrically connected to the first node. The second capacitor includes a first end electrically receiving a feedback compensation signal and a second end electrically connected the first node. The feedback compensation signal has the same phase but different direction of the first control signal. This could realize the self-compensation mechanism of the pixel circuit and thus solve the non-uniformity issue of the conventional display panel and display device.

Display device having variable power sources

A display device includes a display panel including pixels; a panel driver to supply a scan signal and a data signal to the pixels; and a power supply to generate a first supply voltage and a second supply voltage, and to change the first supply voltage and/or the second supply voltage to provide it to the pixels. The pixels emit light in response to the scan signal based on the data signal during an emission period where a voltage difference between the first supply voltage and the second supply voltage is larger than a first reference voltage. A first voltage difference between the first supply voltage and the second supply voltage at a start of the emission period is larger than an average voltage difference between the first supply voltage and the second supply voltage throughout the emission period.

DRIVING METHOD, DISPLAY PANEL AND DRIVING CIRCUIT
20210327389 · 2021-10-21 ·

The present application discloses a driving method, a display panel and a driving circuit. The driving method includes a step of outputting a gate driving signal to a corresponding gate line. A signal period of a common level signal of a common line includes a first time and a second time, the first time corresponds to a first common level, and the second time corresponds to a second common level; a voltage value of the first common level is less than that of the second common level; for a common line corresponding to the N.sup.th gate line, a start moment of the first time is no later than an open moment of the corresponding N.sup.th gate line, and a start moment of the second time is no earlier than a close moment of the (N+1).sup.th gate line.

GRAYSCALE COMPENSATION METHOD AND APPARATUS OF DISPLAY DEVICE
20210407444 · 2021-12-30 ·

A grayscale compensation method and apparatus are provided. The grayscale compensation method includes: performing a grayscale compensation data detection on a display panel to obtain a first grayscale compensation data; preforming a grayscale compensation data detection on a backlight module to obtain a second grayscale compensation data; performing a data fusion on the first grayscale compensation data and the second grayscale compensation data to obtain a third grayscale compensation data; and performing a grayscale compensation on the display panel according to the third grayscale compensation data. By calculating the grayscale compensation data of the display panel and the backlight module at the same time, display brightness of the display panel is more uniform. Moreover, before the data fusion, the first and second grayscale compensation data may be reduced in resolution, the data amount of fusion calculation is less and the calculation time and storage space are saved.

DISPLAY SCREEN, DISPLAY DEVICE, DISPLAY CIRCUIT AND BRIGHTNESS COMPENSATION METHOD THEREFOR
20210264859 · 2021-08-26 ·

A display screen, a display device, a display circuit used for the display screen and a brightness compensation method therefor. The display screen (10) includes a normal display area (11) and a transparent display area (12). The display circuit (20) includes: a first pixel circuit (21), wherein the first pixel circuit is arranged at the normal display area; and a second pixel circuit (22), wherein the second pixel circuit is arranged at the transparent display area. The structure of the first pixel circuit is different from that of the second pixel circuit, so that the light transmittance of the transparent display area is higher than the light transmittance of the normal display area.

DRIVING CIRCUIT, ARRAY SUBSTRATE, DISPLAY DEVICE AND DRIVING METHOD

The present disclosure provides a driving circuit and a driving method thereof, an array substrate, a display device, and a driving method thereof. The driving circuit is applied for driving a light-emitting element and a fingerprint detection element, and includes: a driving sub-circuit, outputting a light-emitting driving current to the light-emitting element under the control of a driving node; a data writing sub-circuit, communicating a data input terminal with the driving node in response to a scanning signal of a scanning signal terminal; a first energy storage sub-circuit, coupled to the driving node and a control signal terminal; a detection sub-circuit, outputting a detection current under the control of an output terminal of the fingerprint detection element; and a data output sub-circuit, outputting a detection current to the data output terminal in response to the scanning signal of the scanning signal terminal.

Subpixel circuitry for driving an associated light element, and method, display system and electronic device relating to same

Disclosed is a subpixel circuit 310 comprising: a first switching device 311 responsive to a digital periodic signal V.sub.P to provide a digital control signal V.sub.C relating to a digital data signal V.sub.D, the digital periodic signal V.sub.P defining 2.sup.N+1 time slots within each frame cycle, where N is a predetermined integer. The digital data signal V.sub.D has a predetermined value at a predetermined one of the 2.sup.N+1 time slots; and the subpixel circuit 310 further comprises a second switching device 312 responsive to the control signal Vc to drive an associated light emitting element 320.

Organic light emitting display device and driving method thereof

An organic light emitting display device includes a plurality of pixels. A pixel on an ith horizontal line includes a first transistor coupled between a first power source and a first node and having a gate electrode coupled to a second node. An organic light emitting diode is coupled between the first node and a second power source. A second transistor is coupled between the second and third nodes and is turned on when a first scan signal is supplied to an ith first scan line. A third transistor is coupled between the third and first nodes. A first capacitor is coupled between an ith control line and the second node. A second capacitor is coupled between the third node and a data line. The pixels are simultaneously driven during first, second, and third periods of a frame period and sequentially driven during a fourth period of the frame period.

DISPLAY DEVICE AND METHOD OF DRIVING THE SAME
20210255721 · 2021-08-19 ·

A display device includes a display portion, a display driver, a touch sensing portion, and a touch driver. The display portion includes data lines, scan lines, and pixels connected to the data lines and the scan lines. The display driver provides data signals to the data lines and sequentially provides scan signals to the scan lines. The touch sensing portion includes sensing electrodes. The touch driver senses a touch input based on a change of a capacitance between the sensing electrodes and calculates a movement speed of the touch input. When the movement speed of the touch input is greater than a reference speed, a first period in which the scan signals and the data signals are provided is reduced in a frame period in which a frame image is displayed.