eDP High-Speed Display Transmission Core Wire Material: Ultra-Fine Coaxial Cable Analysis

In modern laptops, tablets, and industrial display systems, eDP (Embedded DisplayPort) has become the mainstream display interface standard. Compared with traditional LVDS, eDP has significant advantages in terms of bandwidth, power consumption, and EMI control. However, to achieve stable low-loss transmission of high-speed differential signals, the performance of the cable is crucial. The extremely thin coaxial cable (Micro Coaxial Cable) is becoming the key solution for eDP high-speed transmission due to its precise structure and excellent shielding performance.

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The technical characteristics of eDP high-speed transmission

eDP uses differential signal transmission with a rate up to 1.62Gbps to 8.1Gbps (HBR3) or even higher, requiring strict control of impedance, signal integrity, and shielding performance. Even minor impedance mismatch, crosstalk, or EMI interference can cause image flickering, screen artifacts, or signal distortion. In thin and lightweight, high-resolution display devices, stable transmission of high-speed signals becomes a design challenge.

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The advantages of ultra-fine coaxial beam

Extremely thin coaxial cables have a precise structure passing through the center conductor, insulating layer, shielding layer, and outer sheath, achieving strict impedance control (about 90Ω ±10%), and having independent shielding, which can effectively suppress crosstalk and EMI interference, ensuring high-speed signal integrity. Their outer diameter can be as low as 0.4mm to 0.8mm, with high flexibility and small bending radius, suitable for thin and light equipment and narrow space wiring. The high-performance design can also support multi-channel high-speed transmission, meeting the needs of 4K, 8K high frame rate display.

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Typical Applications and Design Value

Extremely thin coaxial cable束 is widely used in notebook display modules, industrial all-in-one touch control machines, vehicle central control systems, and medical imaging equipment, among other applications. It can still ensure stable signal transmission in environments with high vibration, high temperature, or strong interference. Designed with high-purity silver-plated copper conductors, low dielectric constant insulating materials, and a 360° shielding braid, it fully meets the requirements of eDP 1.4b/2.0 and future higher bandwidth standards, providing reliable signal assurance for high-speed display systems.

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Extremely thin coaxial cable束 has become the core solution for high-speed eDP display transmission due to its precise impedance, high shielding, flexible design, and customizable features. It not only enhances the integrity of high-speed image signals but also provides a key guarantee for system stability and high-resolution display.

I amSuzhou Huichengyuan Electronic Technology, Long-term focus 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 interconnect solutions. For more information or customized solutions, please contactManager Yin: 18913280527 (same number for WeChat)。