Protective Shielding for Liquid Crystal Displays (LCDs)
Get the lowdown on Electromagnetic Interference (EMI), a nasty nuisance that messes with your electronics. Whether it's natural sources like lightning or human-made causes such as electric motors or radio waves, EMI can wreak havoc on your devices. EMI occurs due to emissions from transmission sources operating in a Narrow Band or Broad Band spectrum, with Radio Frequency Interference (RFI) being a common culprit in the 30 MHz to 10 GHz frequency range.
EMI threatens a host of crucial technologies, including military electronics, navigation systems, medical devices, mobile computers, and communication systems.
EMI Shielding: Protecting Your Gadgets
EMI Shielding is the unsung hero of reliable communication and the safeguard for sensitive information and electronics. By adding passive components and materials to the system, EMI shielding blocks external electromagnetic interference and stops devices from picking up unwanted signals that could hamper their functionality and security. It creates a Faraday Cage around the electronic device, ensuring that radiated emissions from the device are also minimized.
Devices like LCD Displays, which are regulated by military (MIL-STD 461/464) and federal communication (FCC) standards, are particularly susceptible to EMI. Failing to implement EMI Shielding may lead to the LCD screen producing distortion, horizontal/vertical lines, or image discoloration. Moreover, unchecked radiated signals from electronics can be used to detect and track military troop movements and collect intelligence.
When communication signals are disrupted due to a lack of shielding, a computer system may experience operational malfunctions, lose sensitive information, or even face a complete system failure. In the military, this can be disastrous, potentially leading to botched missions or casualties.
How EMI Shielding Works Its Magic
EMI shielding protects the entire electronic system by creating a conductive ground plane. From electronic display systems, including LCDs, mobile computers, test equipment, and radios used in military, medical, or industrial applications, to sensors and camera systems with a clear aperture, EMI shielding is crucial. It safeguards these devices via metallic enclosures over the PCB components, electronics, cables, and the LCD.
For sensitive devices requiring a clear aperture, a transparent conductive shield absorbs the interference source and keeps the signal from reaching the device. The EMI Shield attenuates radiated emissions from the device and blocks external signals from reaching it, eliminating interference in frequency ranges that degrade its functionality.
Cevians' Game-Changing EMI Shielding Solutions
Cevians' Clear Shield EMI Windows have set the industry standard for EMI shielding. Thanks to years of development of proprietary technologies, their window solutions offer both high EMI/RFI shielding and high optical transmission in extreme environments, making them invaluable in air, shipboard, and ground military vehicles.
Cevians' line of Clear Shield EMI Windows includes a wide range of transparent and conductive coatings and wire mesh technologies, making them suitable for a diverse array of applications.
Transparent Conductive EMI Windows
Cevians manufactures transparent conductive EMI windows using ITO (indium tin oxide) deposited on glass, polymer or ceramic substrates. ITO provides a uniform conductive layer with high transmission. By matching the ITO layer index to the substrate material and exit medium, optical transmission can be further optimized.
Wire Mesh EMI Windows
Cevians' wire mesh EMI Technology is ideal for applications that require increased levels of shielding compared to what transparent conductive coatings provide. While most shielding needs are met with transparent conductive coatings, certain applications demand the enhanced shielding provided by Cevians' mesh technology. Cevians' line of EMI meshes is available in various sizes and materials to balance light throughput and EMI shielding requirements.
Curious about what Cevians has to offer in terms of EMI Shielding technology and product solutions? Our team of experts is eager to answer all your questions and provide you with additional documentation. Reach out to us here to learn more!
- Data-and-cloud-computing systems rely heavily on shielding technologies like EMI Shielding to maintain functionality and secure sensitive information, as unchecked electromagnetic interference can disrupt communication signals, leading to potential data losses or system failures.
- The field of technology benefits greatly from advancements in EMI Shielding, as this technology is critical in safeguarding an array of devices, from display systems and mobile computers to sensors and camera systems, ensuring they operate reliably and free from interference in various applications, including military, medical, and industrial environments.
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