4 results about "Flicker-free" patented technology

The application discloses a backlight erasing method and device, equipment and storage medium, relates to the display technical field, and is applied to a display device. The display device contains multiple rows of physical backlight partitions, and the method comprises the following steps: acquiring a preset lighting frequency of each row of physical backlight partitions within a frame time; dividing each row of physical backlight partitions into multiple logical rows according to the preset lighting frequency; determining the total number of logical rows that need to be lighted within the frame time according to the total number of physical backlight partitions and the preset lighting frequency; determining the reference time occupied by each logical row according to the total number of logical rows and the refresh rate of the display device; generating the on-off time sequence of the multiple rows of physical backlight partitions within the frame time based on the total number of logical rows and the reference time; and controlling the multiple rows of physical backlight partitions to perform lighting and extinguishing operations according to the on-off time sequence, so as to realize backlight erasing. The application realizes stable and flicker-free backlight erasing effect.

This invention discloses a pixel-level constant current driving, ion migration monitoring, and bias protection system, belonging to the field of LED display driving and panel reliability technology. Addressing issues such as uneven pixel current, image quality degradation due to ion migration, pixel failure, and bias protection flickering in traditional Mini LED displays, this invention adopts a four-layer hierarchical architecture, integrating independent pixel-level constant current driving units. It relies on a three-parameter fusion monitoring and temperature compensation mechanism (temperature, pressure, and current) to quantify pixel aging status through the ion migration index. This invention combines adaptive current compensation and inter-frame synchronous reverse bias protection algorithms to achieve lossless image quality and flicker-free aging management. This invention offers high control precision, enabling real-time monitoring, compensation, and delay of pixel aging, significantly improving display uniformity and screen lifespan. Its modular design provides strong scalability, adapting to various high-end Mini LED display applications.

This application discloses an ambient light synchronization method, apparatus, and device based on video content color analysis, comprising: obtaining the current video frame and its display timestamp from the video stream; downsampling the video frame; generating a pixel weight mask for eliminating interference areas based on the downsampled video frame; extracting candidate primary colors of the downsampled video frame based on the downsampled video frame, the pixel weight mask, and a preset spatial weight matrix; performing temporal filtering and perceptual mapping on the candidate primary colors to obtain the luminaire-driven color; generating and sending an ambient light synchronization command to at least one target luminaire based on the luminaire-driven color and its target effective time, to instruct the target luminaire to synchronize its emission state to the luminaire-driven color at the target effective time. This application can achieve lightweight computation, interference-resistant primary color extraction, smooth flicker-free operation, color gamut adaptation, and precise time-series alignment for video-linked ambient light synchronization.