T-CON and panel high-speed connection: The advantages of ultra-fine coaxial cables

In LCD screens, OLED screens, and other display devices, T-CON (Timing Controller, timing controller) is an indispensable core component, which converts and transmits signals from the main control chip to the screen driver IC. With the continuous improvement of resolution and refresh rate, the connection method between T-CON and the panel also faces new challenges. In recent years, ultra-fine coaxial cables (micro coaxial cable) have gradually replaced traditional ribbon cables and have become the preferred choice for more and more manufacturers.

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New challenges of T-CON connection

With the screen resolution increasing from 1080p to 4K, 8K, the data volume grows exponentially, and the high-speed signal frequency increases. Traditional ribbon cables are prone to interference and signal distortion during transmission, making it difficult to meet the demand. At the same time, ultra-thin narrow bezel designs lead to extremely close spacing of components, and high-speed signal lines are susceptible to electromagnetic interference, affecting the stability of the image. In addition, thin and lightweight has become the mainstream trend of display products, and cables and interfaces must be sufficiently small to accommodate narrow bezels and limited internal space.

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The advantages of ultra-fine coaxial lines

Extremely fine coaxial cables, with their unique structure, excel in high-speed display connections. Their coaxial shielding design effectively isolates external electromagnetic noise, ensuring stable signal transmission; they exhibit excellent performance in impedance control and signal loss, reducing reflections and distortions to ensure smooth, high-resolution images without screen flicker; their slender diameter is suitable for routing in limited spaces without affecting slim design; the matching connectors typically feature full shielding and lock structure, ensuring stable contact and further reducing interference.

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Three, key considerations in applications

In practical applications, attention must still be paid to some design details. The connector model should be selected according to bandwidth, interface direction, and spatial layout; high-frequency signals must be matched with impedance to avoid reflections; cables must have sufficient bending and fatigue durability; compared to traditional ribbon cables, micro coax has a higher cost, and a balance between performance and price needs to be made during design. By selecting the model and layout reasonably, extremely thin coaxial cables can give full play to their advantages of high speed, anti-interference, and thinning.

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With the continuous improvement of display resolution and refresh rate, the connection between T-CON and the panel puts higher requirements on high-speed signal transmission and anti-interference ability. The ultra-fine coaxial cable, with its advantages of high bandwidth, strong anti-interference capability, and small size, is gradually becoming the mainstream solution, providing guarantees for the slimming and high-performance development of display devices.

I am[Suzhou Huichengyuan Electronic Technology], long-term focused on the design and customization of high-speed signal cable harnesses and ultra-fine coaxial cable harnesses, committed to providing stable and reliable high-speed interconnection solutions. If you have any related needs or would like to learn more, welcome to contactManager Yin: 18913280527 (WeChat same number)。