History of Extremely Fine Coaxial Wire Connectors

The extremely thin coaxial wire has an outer conductor that provides electromagnetic shielding, making electrical signals transmitted through the central conductor less susceptible to external electromagnetic waves (or electromagnetic noise). This gives the cable a high degree of flexibility and high shielding performance. To realize these advantages, it is necessary to process and terminate these small cables one by one, so that the very thin coaxial lines can be used as jumper connections for digital signals. In the past, because it was difficult to produce cables with stable quality, ultra-thin coaxial lines were only used in a few equipment such as expensive medical equipment, and were not widely used in general consumer electronics products. Notebook computers, which have been widely used since 1990s, are equipped with color LCD screens, with higher image quality and faster display transmission speed. Therefore, when the display is turned on and off, the extremely thin coaxial wire becomes a flexible connection mode while providing high-speed transmission performance, and thus it begins to attract people's attention. I-PEX pioneered the development of a connector that can efficiently and stably connect micro-coaxial cables, while creating the technology to connect these small-sized cables to connectors. In 1996, I-PEX announced the world's extremely thin coaxial connector "CABLINE ® I" for differential transmission of digital signals. Therefore, it is adopted on consumer notebook computers as a digital signal jumper connection using extremely thin coaxial connectors.

I-PEX Japan Seiko Co., Ltd. 's development of "CABLINE ®-VS": Around 2006, in order to improve the compatibility of display connectivity and help display manufacturers and panel consumers better control the supply and demand cycle of panels, the Video Electronics Standards Association (VESA) is committed to display standardization and began to consider standardizing the connectors of notebook computer panels. I-PEX CABLINE ® series extremely thin coaxial connectors have been used for notebook computer display connections and are widely recognized in the display industry. In order to obtain VESA's connector standard certification, I-PEX initiated a development project for a new extremely thin coaxial connector called CABLINE ®-VS, which enables high-speed signal transmission and high connection reliability at compact size and narrow board pitch. (The name "VS" is derived from "VESA Standard". The connector was developed with the aim of obtaining standard certification from VESA. ) In August 2009, after a long period of development and overcoming many difficulties, CABLINE ®-VS was certified as the panel standard connector of VESA "16: 9 Widescreen Notebook Panel with LED Backlight Standard". In addition, CABLINE ®-VS received the 14th ADY2009 Advanced Display of the Year "Outstanding Award" as a connector in recognition of its contribution to the flat panel display industry. Today, the CABLINE ®-VS is still widely used as a standard connector for laptop monitors and is highly regarded for its superior performance and stability (I-PEX has shipped more than 1 billion CABLINE ®-VS in the 10 years since it was certified to the VESA standard).

2. Today and future of ultra-thin coaxial connectors: With the development of high-speed Internet and the increasing usage of mass storage devices, high-resolution images and videos can be more easily shared on consumer products such as personal computers, tablets and smartphones. The amount of information that needs to be processed on these devices increases dramatically, and the signal speed of the devices becomes faster and faster. When electromagnetic noise is added to the outside of electronic equipment, unexpected electrical signals may be generated to the internal circuits of the equipment, causing failure or damage to high-performance electronic components, and may also cause damage to electronic equipment. As the next generation panel connector for CABLINE ®-VS, I-PEX is also developing some EMC shielded connectors (ZenShield ®) to meet various applications and design conditions. The ZenShield ® connector provides board designers with greater flexibility by allowing the connector to be close to sensitive subsystems, such as transmit/receive antennas, which are common in high-performance wireless communication systems. As the data rate increases, the server uses more cable assemblies. These cable assemblies need to minimize their size so that the server system can be easily assembled, while there is unobstructed air flow to ensure heat dissipation. Flexibility is good for high and low speed internal cables, as well as small size, low height.

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