TCL Huaxing released the in-screen CSPI high-speed point-to-point transmission technology

According to the release of TCL Huaxing, higher resolution and higher refresh rate have become the trend of display development. The high-resolution and high-refresh display puts forward higher requirements on the data transmission rate, and the traditional Mini LVDS transmission technology cannot achieve high-speed data transmission. Therefore, various panel manufacturers are actively deploying P2P transmission technologies that support high-speed transmission.

TCL CSOT has released the high-speed point-to-point transmission technology CSOT Point to Point Interface (CSPI). Compared with the traditional P2P transmission technology, it can achieve higher transmission frequency and transmission rate. High-resolution and high-refresh display data transmission provides a better solution.

The CSPI protocol technology is an in-screen high-speed transmission technology independently innovated by TCL CSOT, which provides a solution for high-speed signal transmission from TCON to Source Driver in the in-display driver architecture. Taking 8K products as an example, if the traditional Mini LVDS technology requires 169Pairs of wiring, productization is not feasible, but the number of CSPI wiring can be reduced to 48Pairs, reducing the number of wiring by 70% .

In addition, the traditional P2P transmission technology will have inter-symbol distortion during high-speed transmission. The AEQ adaptive equalizer design developed by TCL CSOT can solve this problem and ensure excellent display quality under high-speed transmission.

TCL CSOT has released the high-speed point-to-point transmission technology CSOT Point to Point Interface (CSPI). Compared with the traditional P2P transmission technology, it can achieve higher transmission frequency and transmission rate. High-resolution and high-refresh display data transmission provides a better solution.

The TCL CSOT has released the high-speed point-to-point transmission technology CSOT Point to Point Interface (CSPI). Compared with the traditional P2P transmission technology, it can achieve higher transmission frequency and transmission rate. High-resolution and high-refresh display data transmission provides a better solution.

CSPI protocol can reduce the number of wiring by 70%

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 the clock signal and the data signal), and obtains the corresponding data signal according to the sampling of the clock signal. The characteristic of fast transmission rate.

Compared with the traditional P2P transmission technology, TCL CSOT CSPI technology adopts 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 that of the traditional Mini LVDS technology, and the transmission efficiency is higher than The traditional P2P transmission technology increased by 11%.

CSPI protocol transmission frequency and efficiency have been improved

TCL Huaxing said that it is the first panel manufacturer in China to realize independent development of P2P transmission technology. By 2022, it has shipped more than 500 million SD ICs equipped with CSPI technology. In terms of patents, TCL CSOT CSPI technology has independent coding and decoding and other related patents, and has applied for the national LCD display point-to-point signal interface transmission protocol standard, which can be used by domestic manufacturers free of charge.

TCL CSOT CSPI protocol technology has covered TV / MNT / NB full range of product applications. TCL CSOT has integrated CSPI transmission technology into UD and 8K products and achieved mass production. Among them, 32" UD 240Hz and 75" 8K 265Hz have been equipped with CSPI protocol technology to achieve the first product technology launch.