5results about How to "Reduce afterimage" patented technology

A display device and its driving method are discussed. The display device includes: a display panel having data lines, gate lines, and pixel lines, the pixel lines having pixels; a data driver connected to the data lines; a gate driver connected to the gate lines; and a timing controller configured to receive first pixel data or second pixel data of an input video from a set-up device, and to control the data driver and the gate driver based on the received pixel data. The timing controller is configured to write the second pixel data to a pixel during a write period in a frame when the second pixel data is received from the set-up device at a faster transmission rate than the first pixel data. The timing controller is then configured to write black data with a black grayscale value to the pixel during a vertical blanking period.

The electronic paper driving method and electronic paper device and their computer-readable storage medium include a K1 driving waveform and a K2 driving waveform; the K1 driving waveform includes an old image preparation stage and an A display stage; the K2 driving waveform includes an old image preparation stage, an A display stage, a waiting stage, and a B display stage; when displaying images U1 and U2, if the display interval between images U1 and U2 is greater than a set time T, the driving waveforms for both images U1 and U2 use the K1 driving waveform; when displaying images U1 and U2, if the interval between images U1 and U2 is less than a set time T, the driving waveforms for both images U1 and U2 use the K2 driving waveform; the U1 image is displayed in the A display stage, and the U2 image is displayed in the B display stage.

The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal composition containing high-reliability thiophene monomers and application of the liquid crystal composition, the liquid crystal composition comprises a deuterated thiophene compound, has low rotary viscosity and large elastic constant, has excellent reliability, and can be applied to liquid crystal display. The response speed of the liquid crystal display can be obviously improved, and the occurrence probability of the afterimage problem in a panel can be effectively reduced.

The application belongs to the technical field of mapping, and relates to an active mapping method based on optical flow residual prediction and semantic entropy driving, which quantifies the semantic ambiguity degree based on semantic entropy, realizes collaborative mapping by predicting dynamic interference trajectories through optical flow residuals, sequentially executes uncertainty prediction, tracking, mapping, trajectory prediction and path planning stages, fuses semantics and geometric features to generate a weighted semantic perception uncertainty map, suppresses dynamic interference through dense bundle adjustment, constructs a semantic consistency loss to optimize static area reconstruction, predicts dynamic trajectories based on RAFT optical flow and Kalman filter and generates a no-fly zone, and completes path planning through a global-local collaborative architecture and a multi-target cost function; the application improves the dynamic scene mapping and background area mapping accuracy, realizes early avoidance of dynamic obstacles, takes into account obstacle avoidance safety and mapping optimization requirements, and provides observation data support for a SLAM system.

A printer comprises a toner cartridge and a de-energizing lamp, the toner cartridge comprises a toner cartridge box, a developing roller, a charging roller and a photosensitive drum, the developing roller, the charging roller and the photosensitive drum are all installed on the toner cartridge box, the charging roller and the developing roller are arranged in the circumferential direction of the photosensitive drum at intervals, the charging roller charges the photosensitive drum, and the developing roller transmits carbon powder in the toner cartridge to the surface of the photosensitive drum. At least part of the photosensitive drum is exposed out of the drum powder box; and the light emitted by the de-lamp irradiates the photosensitive drum exposed outside the drum powder box so as to eliminate charges of residual carbon powder on the photosensitive drum. According to the application, the electric discharge lamp is arranged in the printer, and the photoelectric effect of the photosensitive drum is utilized, so that after the potential on the surface of the photosensitive drum after transfer printing is cleared and the residual potential is eliminated, waste carbon powder can be well absorbed by the developing roller, and the problem of residual images on printing paper is reduced. The residual carbon powder on the photosensitive drum can be directly rotated back to the developing roller and recovered to the powder bin, so that the problems of large occupied space, high cost and non-environment-friendly waste powder treatment of a waste powder bin are solved.