---
title: X-Board 4C COB All-in-One LED Display
description: Flip-chip COB all-in-one LED display for commercial interiors. 25 mm thin, installs in about 30 minutes, shows four sources at once, in 108 to 216 inches.
url: https://led.express/products/x-board-4c/
language: en
alternates:
  es-MX: https://led.express/es/productos/x-board-4c/index.md
  fr-CA: https://led.express/fr/produits/x-board-4c/index.md
publisher: LED Express
product: X-Board 4C
category: Movable LED displays › All-in-one displays
image: https://led.express/assets/product.232203ce31.webp
---

# X-Board 4C COB All-in-One LED Display

> Curved-Frame Intelligent Display

![X-Board 4C](https://led.express/assets/product.232203ce31.webp)

X-Board 4C combines COB display technology with an ultra-slim all-in-one design, creating a clean and refined display solution for modern indoor spaces. Its 25 mm slim profile keeps the installation compact, while the full flip-chip structure provides a smooth and comfortable viewing experience. With fast installation, adjustable brightness, and multi-source connectivity, X-Board 4C balances visual quality, simple deployment, and everyday usability.

- Category: [All-in-one displays](https://led.express/products/movable-led-display/all-in-one-led-display/index.md)
- Request a quote: https://led.express/quote/?display=x-board-4c

## Key facts

- Type: COB
- Size: 108 / 135 / 163 / 216 inch
- Pixel pitch: P0.9, P1.3, P1.6
- Service access: Front

## Highlights

1. Slim and Integrated Design
2. Full Flip-Chip COB Technology
3. Fast Installation with an Integrated Structure
4. Comfortable Viewing with Flexible Brightness Control
5. Multiple Sources, One Display

## Slim and Integrated Design

At just 25 mm thick, X-Board 4C combines a slim profile with a highly integrated structure, creating a modern look without unnecessary bulk. The minimalist design allows the display to blend naturally into contemporary interiors while keeping the overall installation neat and space-efficient.

![Slim and Integrated Design](https://led.express/assets/feature-01-slim-and-integrated-design.c44bcc2f92.webp)

## Full Flip-Chip COB Technology

X-Board 4C uses a full flip-chip COB structure to create a more refined LED display surface. The direct-packaged LED design helps deliver smooth, consistent visuals with a softer appearance, making the screen comfortable to view during extended use.

![Full Flip-Chip COB Technology](https://led.express/assets/feature-02-full-flip-chip-cob-technology.ab95e83807.webp)

## Fast Installation with an Integrated Structure

X-Board 4C is designed with a highly integrated structure that simplifies both installation and removal. With a streamlined setup process, the display can be installed in around 30 minutes, helping reduce on-site work and allowing the system to be deployed more efficiently across different indoor applications.

![Fast Installation with an Integrated Structure](https://led.express/assets/feature-03-fast-installation-with-an-integrated-structur.fea0ad7d50.webp)

## Comfortable Viewing with Flexible Brightness Control

X-Board 4C provides 8 levels of brightness adjustment, allowing users to fine-tune the display according to different lighting conditions and viewing environments. From brighter commercial spaces to more controlled indoor settings, the screen can be adjusted for a comfortable and balanced viewing experience.

![Comfortable Viewing with Flexible Brightness Control](https://led.express/assets/feature-04-comfortable-viewing-with-flexible-brightness.f4aadbb16e.webp)

## Multiple Sources, One Display

X-Board 4C supports PIP and PBP modes, allowing up to four signal sources to be displayed on the same screen. It also supports wireless projection from up to nine devices, making it easier to share presentations, compare content, and collaborate without constantly switching between sources.

![Multiple Sources, One Display](https://led.express/assets/feature-05-multiple-sources-one-display.37b73c6ceb.webp)

## Specifications

| Model | X121B4C-108 | X151B4C-135 | X121B4C-216 | X091B4C-163 |
|---|---|---|---|---|
| Pixel Pitch（mm） | 1.25 | 1.5625 | 1.25 | 0.9375 |
| Resolution（W*H) | 1920*1080 | 1920*1080 | 3840*2160 | 3840*2160 |
| Refresh Rate（Hz） | 2880-3840 | 2880-3840 | 2880-3840 | 2880-3840 |
| Contrast | 10000:1 | 10000:1 | 10000:1 | 10000:1 |
| Viewing Angle（H/V) | 160°/160° | 160°/160° | 160°/160° | 160°/160° |

_Published specifications. Final values for your configuration are confirmed with your quote._

## Related displays

- [E-Board4 Std](https://led.express/products/e-board4-std/index.md): Interactive Educational & Corporate Terminal (P1.3, P1.6, P1.9, P2.5 · 108 / 135 / 163 / 216 inch)
- [F-Board4 XT](https://led.express/products/f-board4-xt/index.md): Ultra-Slim Smart Conference Terminal (P1.6 · 178 inch)
- [F-Board4 Std](https://led.express/products/f-board4-std/index.md): Standard Foldable Smart Conference LED (P1.6 · 135 inch)

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Web page: https://led.express/products/x-board-4c/ · Site index: https://led.express/llms.txt