A liquid crystal display device includes: a liquid crystal panel having pixels with a first electrode and a second electrode; a control circuit; and a counter. The number and an arrangement of pixels where a potential of the second electrode is higher than that of the first electrode in a first mode equal the number and an arrangement of pixels where the potential of the first electrode is higher than that of the second electrode in a second mode. The counter increases a count while the panel operates in the first mode, and decreases the count while the panel operates in the second mode. The control circuit operates the panel in the first mode when the count at a determination timing is not greater than a first threshold, and operates the panel in the second mode when the count at the determination timing is not less than a second threshold.

A display apparatus includes pixels arranged in a two-dimensional matrix pattern, each of which including a light-emitting unit and a drive circuit that drives the unit and includes a comparator circuit that compares a control pulse with potential based on signal voltage and outputs predetermined voltage based on the result, a transistor driving the unit in response to the predetermined voltage, and a current source that supplies current to the unit during driving of the transistor, includes a current-source transistor, a capacity unit connected to a gate electrode of the current-source transistor, a differential amplifier that detects a differential between voltage based on reference constant current and reference voltage, and a transistor controlling the voltage based on reference constant current depending on current flowing through the current-source transistor, and controls gate potential of the current-source transistor on the basis of output of the amplifier in synchronization with a scanning signal.

A gate driving circuit and a light emitting display apparatus including the same are disclosed, in which current leakage of a control node may be avoided. The gate driving circuit includes first to mth stage circuits, wherein each of the first to mth stage circuits includes first to fifth control nodes, a node control circuit controlling a voltage of each of the first to fourth control nodes based on a first front carry signal, a sensing control circuit controlling a voltage of the fifth control node based on a line sensing preparation signal, a second front carry signal and a first reset signal, and a first node reset circuit controlling the voltage of the first control node based on the voltage of the fifth control node and a second reset signal, wherein the first node reset circuit may include a discharge path having two thin film transistors connected between a gate low potential voltage line and the fifth control node.

In some aspects, the present disclosure provides a method for generating a frame. The method includes receiving a first fence indicating that a first frame stored in a display processor unit (DPU) buffer has been consumed by a hardware component. The method also includes in response to receiving the first fence, fetching a plurality of layers from an application buffer, the plurality of layers corresponding to a second frame. The method also includes determining to use both a DPU and a graphics processing unit (GPU) to process the plurality of layers for composition of the second frame. The method also includes fetching the first fence from the DPU buffer and generating a second fence.

Provided are a display panel and a display device. The display penal includes pixel circuits, light-emitting devices, first reset signal lines, second reset signal lines, and auxiliary signal lines. Each pixel circuit includes a driving transistor, a first reset transistor, and a second reset transistor. The first reset transistor includes a first electrode electrically connected to one of the first reset signal lines, and a second electrode electrically connected to a control terminal of the second reset transistor. The second reset transistor includes a first electrode electrically connected to one of the second reset signal lines, and a second electrode electrically connected to a first electrode of one of the light-emitting devices. The auxiliary signal line intersects with and is electrically connected to the first reset signal line or the second reset signal line.

A first transistor, a second transistor, a third transistor, a fourth transistor are provided. In the first transistor, a first terminal is electrically connected to a first wiring; a second terminal is electrically connected to a gate terminal of the second transistor; a gate terminal is electrically connected to a fifth wiring. In the second transistor, a first terminal is electrically connected to a third wiring; a second terminal is electrically connected to a sixth wiring. In the third transistor, a first terminal is electrically connected to a second wiring; a second terminal is electrically connected to the gate terminal of the second transistor; a gate terminal is electrically connected to a fourth wiring. In the fourth transistor, a first terminal is electrically connected to the second wiring; a second terminal is electrically connected to the sixth wiring; a gate terminal is connected to the fourth wiring.

A driving circuit that includes a plurality of sub-driving circuits, a plurality of latch circuits and a plurality of first switching circuits is introduced. The sub-driving circuits is configured to supply a plurality of driving currents to drive a first group of light sources to emit light to form a first pixel on a display medium. A quantity of the sub-driving circuits is corresponding to a first data resolution of pixel data of the first pixel. Each of the latch circuits is configured to store a different bit of the pixel data of the first pixel. The first switching circuits are respectively coupled to the sub-driving circuits and are configured to control the plurality of sub-driving circuits to supply the driving currents to the first group of light sources according to the pixel data.

A liquid crystal display includes a plurality of sub-pixels arranged in an array. A method of driving the liquid crystal display includes determining a frame rate weight according to a current frame rate of a plurality of image frames, performing linear prediction according to the current frame rate to generate an initial overdrive value of a sub-pixel, selecting an error correction value according to a previous gray level of the sub-pixel, generating an overdrive weight according to the previous gray level and a current gray level of the sub-pixel, generating an overdrive offset according to a product of the error correction value, the frame rate weight and the overdrive weight, combining the initial overdrive value and the overdrive offset to generate a corrected overdrive value, and driving the sub-pixel according to the corrected overdrive value.

A display device includes: a plurality of pixel blocks each including a plurality of pixels; a scan driver supplying a scan signal to the scan lines and to supply a control signal to the control lines; a data driver supplying an image data voltage or a low grayscale data voltage to the data lines; and a power supply supplying a reference voltage to the pixels, wherein the pixels are configured to receive the image data voltage during a first scan period of a frame, and to receive the low grayscale data voltage during a second scan period of the frame, and the reference voltage supplied to a first pixel row of at least one of the pixel blocks in the first scan period is different from the reference voltage supplied to a last pixel row of at least one of the pixel blocks in the first scan period.

The present application discloses a method and apparatus for controlling display in a screen projection scenario, a device, a medium and a program product, relating to the technical fields of autonomous driving, Internet of Vehicles, intelligent voice, and screen projection in artificial intelligence. The specific implementation is: receiving a voice interaction instruction corresponding to a voice application; if a first page corresponding to a first application in at least one non-voice application has been projected onto a screen of a terminal device, adding to-be-displayed content corresponding to the voice application to the first page to obtain a to-be-projected page corresponding to the first application; and projecting the to-be-projected page onto the screen of the terminal device. The above process can reduce a delay in displaying an image projected on the screen.