Optoma 5753RK 75" 4K UHD Premium Interactive Flat Panel Display

Description

The Optoma 5753RK is a high-end, large-format interactive flat panel display designed primarily for education and corporate environments that demand cutting-edge visuals, intuitive interactivity, and robust functionality. With a massive 75-inch screen and 4K UHD resolution (3840×2160), the display ensures crisp text, detailed images, and immersive viewing for large rooms. The direct LED backlight, together with a typical brightness of around 420 cd/m² (nits) and wide 178° viewing angles, makes it practical for classrooms, meeting rooms or training halls where visibility from different positions is key. Its static contrast ratio is about 5,000:1, with a dynamic contrast up to ~6,000:1. The display supports over a billion colors.

Touch interactivity is a core strength. With touch support for up to 32 simultaneous points on Android, and up to 50 points under Windows, multiple users can collaborate together—drawing, annotating, or working on content simultaneously. The panel features a very small air gap (~0.60 mm) between the glass and the display for more natural pen- or finger-based input, combined with anti-glare, anti-fingerprint toughened glass (surface hardness ~7H, pencil hardness ~9H) that’s durable and reduces unwanted glare or smudges.

Performance is solid. Response time of ~6-8 ms ensures relatively low lag in writing or interactive sessions. The panel has a long lifetime (~50,000 hours), meaning it can be used extensively without worries about rapid degradation. 

Under the hood, the 5753RK runs Android 13, powered by an octa-core CPU aligned as (A76 ×4 + A55 ×4), backed by 8 GB RAM and 64 GB internal storage. It supports Google EDLA certification, which gives access to Google Play etc., and includes built-in tools like whiteboarding, wireless display share, dual-app mode, and more. It also offers good audio setup: dual 18W speakers plus dual 8W subwoofers to improve sound output appropriately for larger spaces.

Connectivity is comprehensive: multiple HDMI 2.0 inputs (×4), DisplayPort, USB-C ports, USB-A / USB 3.0, audio in/out, RS-232, LAN (RJ-45), outputs like HDMI out and audio out, and it includes an OPS expansion slot. Wireless networking (WiFi 6, 802.11ax / 2.4 & 5 GHz bands) is supported optionally. The physical build includes a VESA mounting pattern (800×400 mm) and toughened glass. It weighs about ~51-52 kg net and has dimensions ~1709 × 86 × 1031 mm (W × D × H). Power usage in normal operation is ~ 307 W, with standby ~ 0.5 W; maximum consumption can reach ~ 494 W under heavy load.

In summary, the Optoma 5753RK is a premium interactive display suited for environments where size, clarity, multi-touch collaboration, and reliable software features are important. It may not be ideal for extremely bright outdoor light, but for indoor classrooms or boardrooms it offers an excellent balance of features, durability, and interactivity. It’s particularly strong for hands-on teaching, presentation-rich meetings, hybrid / remote learning setups, or any scenario where large touch display is central to interaction.

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