The 55" Class QN90CD Samsung Neo QLED 4K Smart TV is part of Samsung's QN90CD series and represents a high-quality television with advanced features. Please note that my knowledge is based on information available up to September 2021, and I do not have specific details about products released in 2023. However, I can provide you with some general insights into what you can expect from a Samsung Neo QLED TV:

Key Features of Samsung Neo QLED TVs (General Highlights):

1. Neo QLED Technology: Neo QLED is Samsung's proprietary display technology that combines Quantum Dot technology with Mini-LED backlighting. This technology is designed to offer improved color accuracy, contrast, and brightness compared to standard LED displays.

2. 4K UHD Resolution: The TV features a 4K Ultra High Definition (UHD) resolution, offering sharp and detailed images on its screen.

3. Smart TV Capabilities: Samsung's Smart TV platform provides access to a wide range of streaming apps, including popular services like Netflix, Amazon Prime Video, and more. It also allows for voice control using virtual assistants like Bixby.

4. AI Upscaling: Some Samsung Neo QLED TVs include AI upscaling technology, which uses artificial intelligence to enhance the quality of lower-resolution content to near-4K quality.

5. HDR Support: Neo QLED TVs typically support High Dynamic Range (HDR) formats like HDR10 and HLG, delivering a wider range of colors and improved contrast for compatible content.

6. Quantum Processor: Samsung often equips its Neo QLED TVs with powerful processors that handle various functions, including upscaling, motion smoothing, and smart features.

7. Object Tracking Sound (OTS): Some models may feature Object Tracking Sound technology, which adjusts the audio output to match the movement of objects on the screen, providing a more immersive audio experience.

8. Slim Design: Samsung pays attention to design, often delivering TVs with slim profiles, narrow bezels, and an elegant aesthetic.

9. HDMI and Connectivity: These TVs include multiple HDMI ports, USB ports, and other connectivity options for connecting gaming consoles, Blu-ray players, soundbars, and other devices.

10. Screen Sizes: The QN90CD series is available in different screen sizes, including the 55-inch model you mentioned.

It's important to check the specific features and specifications of the 2023 model of the 55" Class QN90CD Samsung Neo QLED 4K Smart TV on Samsung's official website or from reputable sources to get the most accurate and up-to-date information about this product. Samsung often releases new TV models with enhanced technology and features to deliver an outstanding viewing experience.