TCL China Star pioneered CSPI transmission technology
With the upgrading of consumers' demand for display applications and the expansion of application scenarios, higher resolution and higher refresh rate have become the trend of display development. The high resolution and high refresh display requires higher data transmission rate. The traditional Mini LVDS transmission technology can not achieve high speed data transmission. Therefore, the panel manufacturers are actively layout support high-speed transmission P2P transmission technology.
TCL Huaxing pioneered the high-speed point-to-point transmission technology CSOT Point to Point Interface (CSPI), which achieves higher transmission frequency and rate compared with traditional P2P transmission technology. At the same time, CSPI has become the national Standard China Standard Point to Point Interface, which provides a better solution for high resolution and high refresh display data transmission.
Break the traditional architecture, increase speed and simplify the system
CSPI protocol technology is a high-speed in-screen transmission technology independently innovated by TCL Huaxing, providing a solution for high-speed signal transmission from TCON to Source Driver in the in-screen driver architecture. Take 8K product as an example, if the traditional Mini LVDS technology is used for wiring, it requires 169Pairs, which is not feasible for production, while the number of wiring can be reduced to 48Pairs with CSPI, reducing the number of wiring by 70%.
In addition, the traditional P2P transmission technology will have inter-code distortion during high-speed transmission. TCL Huaxing's self-developed AEQ adaptive equalizer design can solve this problem and ensure excellent display quality under high-speed transmission.
Different from the traditional Multi-Drop architecture, the traditional P2P transmission technology uses the internal clock recovery circuit to recover the clock signal according to the received differential signal (including clock signal and data signal), and obtains the corresponding data signal according to the clock signal sampling, which has the characteristics of fast transmission rate.
TCL Huaxing CSPI technology, compared with the traditional P2P transmission technology, uses 8B/9B codec and clock embedded technology, which further improves the transmission frequency and transmission efficiency. The transmission frequency is 7.5 times higher than the traditional Mini LVDS technology, and the transmission efficiency is 11% higher than the traditional P2P transmission technology.
Technology integration products, leading the development of the display industry
TCL Huaxing is the first panel manufacturer in China to realize independent development of P2P transmission technology. By 2022, it has shipped over 500 million SD ics equipped with CSPI technology. In terms of patents, TCL Huaxing CSPI technology has related patents such as self-editing and decoding, and has applied for the national point-to-point signal interface transmission protocol standard for LCD screens, which can be used free of charge by domestic manufacturers.
TCL Huxing CSPI protocol technology is constantly changing, and has covered the whole series of TV/MNT/NB product applications. The excellent SD solution will comprehensively improve the picture quality experience. By integrating CSPI transmission technology into UD and 8K products, TCL Huaxing has realized mass production. Among them, 32' UD 240Hz and 75' 8K 265Hz have been equipped with CSPI protocol technology to achieve product technology debut, which fully demonstrates TCL Huaxing's strong strength in leading the development and progress of the display industry through technological innovation.
32 "UD 240Hz esports Screen
Keep the leading edge, continue to innovate layout for the future
In the future, the ultra HD industry has a broad prospect and the high brush market has huge potential. TCL Huxing firmly believes that innovation is endless, adheres to the ability to create full-size and full-category panel products, and constantly innovates. It will continue to uphold the attitude of openness and formulate more leadership strategies to promote the progress of the entire industry.
