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Large 75 inch commercial touchscreen display with slim dark bezel

OPTOMA

OPTOMA 5753RK 75" commercial display

SKU CH-1NNB-RBAP4 MPN 5753RK

A 75-inch touchscreen display with 4K resolution and 420 nits brightness for interactive collaboration

  • Screen Size75"
  • 75" 4K touchscreen enables collaborative lessons
  • Cortex A76 plus A55 with 8 GB runs apps smoothly
  • 420 nit Direct LED panel stays clear in bright rooms
  • 5,000:1 contrast renders text and images sharply
  • Infrared touch supports multi-user writing simultaneously

75-inch Interactive Collaboration Display

The Optoma 5753RK is a 75-inch commercial display built for interactive teaching and hybrid meetings. It combines a 4K touchscreen with an integrated Cortex A76 and A55 processor plus 8 GB of memory. Infrared touch technology enables direct on-screen annotation. The panel is designed for classroom and boardroom environments where real-time collaboration is required.

4K Direct LED Panel with 420 Nit Brightness

The 3840 x 2160 resolution Direct LED panel delivers a 5,000:1 contrast ratio and 420 nits of brightness. This output handles well-lit rooms and detailed content such as spreadsheets or diagrams. The fixed 75-inch diagonal limits the display to medium-sized spaces; larger auditoriums would need a bigger surface or projection alternative.

Google EDLA Certification and Whiteboard Software

Google EDLA certification provides access to the Google Play Store for app installation. The pre-installed Whiteboard application launches when the pen is lifted and supports simultaneous multi-location sessions. Magic Draw adds shape recognition for diagrams. These tools replace the need for a separate whiteboarding PC in many workflows.

Highlights

  • 75" 4K touchscreen enables collaborative lessons
  • Cortex A76 plus A55 with 8 GB runs apps smoothly
  • 420 nit Direct LED panel stays clear in bright rooms
  • 5,000:1 contrast renders text and images sharply
  • Infrared touch supports multi-user writing simultaneously

Specifications

BrandOptoma
Model5753RK
Part Number5753RK
Screen Size75"
Shipping weight32.66 kg
Package size1854 × 1118 × 229 mm

Questions about this item

Will the 75" 3840 x 2160 touchscreen work with a legacy 1080p laptop over HDMI?

The panel accepts a 1080p signal and scales it to its native 3840 x 2160 resolution, so an older laptop can drive the display without additional adapters.

How can I confirm the 420 nit brightness and 5,000:1 contrast are active after installation?

Display a full-screen white field and a checkerboard pattern; the on-screen menu reports the current backlight level and contrast setting matching the rated 420 nit and 5,000:1 values.

Does the box include the infrared pens for the IrDA touchscreen or must they be purchased separately?

Two passive infrared pens are supplied in the carton; no separate purchase is required for basic touch and annotation operation.

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