A FPGA-based backlight multi-partition brightness statistics method and device

Abstract

The present invention involves a statistical method and device based on FPGA -based backlight multi -partition; statistical methods, including the following steps: obtain the V‑by‑one signal input;Restore pixel data; process the site synchronization, data valid signal and pixel data to obtain the brightness results; perform pixel data compensation correction and processes of brightness results according to the brightness results;V‑byeone signal; send the processed brightness results to the backlight control board to achieve backlight brightness control.The present invention can greatly reduce the logical resource consumption of FPGA on the main board of the partition backlit control, which can effectively meet the tannin -based backlight processing, reduce the cost of multi -partitioned backlit TV, and the software upgrade is flexible, the interface is highly universal, and can be different from different from different from different from different interfaces.Type 4K / 8K motherboard adaptation docking.

Description

technical field [0001] The invention relates to the technical field of backlight multi-partition brightness statistics, in particular to an FPGA-based backlight multi-partition brightness statistics method and device. Background technique [0002] At present, high resolution / high frame rate and high dynamic range (HDR) have become the performance indicators that manufacturers in the video display field are chasing after. The backlight is an important part of the LCD display principle. In terms of power consumption, the backlight part accounts for the entire display module. Most of them, Local Dimming technology can realize precise control of the backlight of each frame of image area, reduce TV power consumption, greatly improve the contrast of TV display screen, and achieve shocking terminal HDR display effect. The development of mini LEDs ranges from hundreds to tens of thousands of partitions on large-size 4K / 8K TVs. Such a large number of segmented backlights presents a ...

AI Technical Summary

Problems solved by technology

[0004] At present, almost all FPGA solutions are adopted for high partition backlight algorithm control in the market, mainly because of the high cost of chip tape-out, but the current demand for high-end models in the market has not yet reached the million-level consumption, which is in a state of high investment and low return. At the same time, the high chip price also hinders the promotion of the product; however, FPGA has high flexibility and strong parallel processing ability to adapt to different partition scenarios, and at the same time, it uses the built-in Transceiver high-speed serial transceiver in FPGA to realize V-By-One image transmission , so as to realize the perfect docking and interconnection with the TV motherboard and TCON board

[0005] As the number of backlight partitions increases, the traditional backlight multi-partition statistical method takes up more and more resources. It must be implemented with a larger FPGA, which is not conducive to cost control.

Images