UHD-14VW Overview and Use Cases

What Is the UHD-14VW?

The OREI UHD-14VW is a 1-in-4-out video wall controller that takes a single video source and distributes it across up to 4 displays simultaneously. It accepts input from either an HDMI or USB-C source and supports resolutions up to 4K at 60Hz with 4:4:4 color.

The device can spread a single image across all 4 screens to create a 2x2 video wall, or it can be used in a range of other configurations including 1x1, 2x1, 3x1, 4x1, 1x2, 1x3, and 1x4. It includes both an optical (S/PDIF) and a 3.5mm L/R audio output for audio extraction. Built-in 180-degree image rotation and bezel compensation allow for precise display alignment in video wall setups.

The UHD-14VW is plug-and-play and requires no driver installation or software setup. It can be controlled via the front panel buttons, the included IR remote, or RS-232 serial commands, making it suitable for digital signage, retail environments, conference rooms, and other commercial installations.

Ports and Panel Layout

Front Panel

Rear Panel

Step-by-Step Setup

• Connect your HDMI source device (such as a streaming box, Blu-ray player, gaming console, or PC) to the HDMI INPUT port on the rear panel. Alternatively, connect a laptop or PC with USB-C video output to the USB-C INPUT port.
• Connect up to 4 displays to the VIDEO WALL OUT ports (HDMI 1 through HDMI 4) on the rear panel using HDMI cables.
• Connect the included locking power supply to the DC 12V port and plug it into a power outlet.
• Power on the UHD-14VW, then turn on all connected displays and the source device.
• Press the HDMI or USB-C button on the front panel (or remote) to select the correct input source.
• Press the MODE button to cycle through the available video wall layouts until you reach the configuration that matches your screen arrangement (such as 2x2, 4x1, 1x4, etc.).
• Press the RES button to select the output resolution for your displays. Options are 720p, 1080p, 4K (30Hz), and XGA (1024x768).
• If needed, use the H-BEZEL and V-BEZEL controls on the remote to adjust for the physical bezel thickness between screens.
• To rotate the image on any individual display for portrait-mounted panels, press the corresponding output number button (1, 2, 3, or 4) on the remote to toggle 180-degree rotation on that output.
• If using audio extraction, connect an optical cable to the OPTICAL AUDIO OUT port or a 3.5mm cable to the L/R AUDIO OUT port and route to your speaker system or amplifier.

Cable Requirement

For 4K@60Hz input and output, use Premium High Speed HDMI cables no longer than 8m (26ft). For 4K@24Hz, cables up to 10m (32ft) can be used. For 1080p@60Hz, cables up to 15m (49ft) are supported. Using cables beyond these lengths or cables not rated for the required bandwidth may result in signal degradation or no signal.

Understanding Video Wall Modes

The UHD-14VW supports 8 video wall modes. Each mode controls how the source image is split and distributed across the connected displays. In all modes except 1x1, only the displays assigned to the active layout will show a cropped portion of the image. Displays not participating in the active layout will not receive a signal in those modes.

The available modes are:

• 1x1 (clone mode - all 4 outputs show the full image)
• 2x1 (2 screens wide, 1 screen tall)
• 3x1 (3 screens wide, 1 screen tall)
• 4x1 (4 screens wide, 1 screen tall)
• 1x2 (1 screen wide, 2 screens tall)
• 1x3 (1 screen wide, 3 screens tall)
• 1x4 (1 screen wide, 4 screens tall)
• 2x2 (2 screens wide, 2 screens tall)

Modes can be selected using the MODE button on the front panel, the video wall mode buttons on the IR remote, or via RS-232 command (s tw mode x!, where x is the mode number 1 through 8).

What Source Devices Is the UHD-14VW Compatible With?

The UHD-14VW works with any device that outputs a standard HDMI or USB-C video signal at up to 4K@60Hz. Compatible source devices include:

• Streaming devices such as the Roku Ultra, Amazon Fire TV Stick 4K, and Apple TV 4K
• Gaming consoles such as the PlayStation 5 and Xbox Series X
• Blu-ray and DVD players
• Laptops and desktop PCs with HDMI output
• Laptops with USB-C (DisplayPort Alt Mode) video output
• Cable and satellite set-top boxes
• Digital signage media players

Note: The USB-C input requires a source that supports DisplayPort Alt Mode over USB-C. USB-C ports that handle charging or data transfer only will not output video.

What Displays Is the UHD-14VW Compatible With?

The UHD-14VW is compatible with any display, monitor, or TV that has an HDMI input. The selectable output resolutions (720p, 1080p, 4K@30Hz, and XGA) ensure compatibility with a wide range of consumer and commercial panels.

For best results in a video wall configuration, all 4 connected displays should be the same make, model, and size to ensure consistent image alignment, color accuracy, and bezel gap compensation across the wall.

Frequently Asked Questions

Q: How many displays can I connect to the UHD-14VW?
A: The UHD-14VW has 4 HDMI outputs (VIDEO WALL OUT HDMI 1 through HDMI 4), so it supports a maximum of 4 displays simultaneously.

Q: Can I use both the HDMI and USB-C inputs at the same time?
A: No, only one input is active at a time. You can switch between HDMI and USB-C using the front panel buttons or the remote. When AUTO mode is enabled, the device will detect and switch to an active input automatically.

Q: What is the maximum output resolution?
A: The output resolution is selectable between 720p@60Hz, 1080p@60Hz, 4K@30Hz, and XGA (1024x768@60Hz). Even when the source is sending 4K@60Hz, the outputs are limited to 4K@30Hz.

Q: Can I rotate individual displays independently?
A: Yes. Each of the 4 outputs supports independent 180-degree rotation. Press the corresponding output number button (1, 2, 3, or 4) on the remote to toggle rotation on that display. This is useful when mounting screens upside-down to minimize bezel gaps at the top and bottom joins.

Q: How do I reduce the visible bezel gap between screens?
A: Use the H-BEZEL and V-BEZEL adjustment buttons on the remote to shift the image content under the bezels so the picture appears to continue seamlessly from one panel to the next. The bezel value can be set between 0 and 10 in either direction.

Q: All my screens are showing glitches. What should I try?
A: First, check that all HDMI and USB-C cables are firmly connected and rated for 4K@60Hz. If using the remote, check the batteries and make sure nothing is blocking the IR window. Try lowering the output resolution using the RES button, or try a different source device.

Q: One display shows no signal. What should I try?
A: Check that the HDMI cable is securely connected at both ends. Try swapping the cable for a known-good one. Try moving the display to a different output port on the UHD-14VW to determine whether the issue follows the display or stays on the same output.

Q: Does the UHD-14VW support audio output?
A: Yes. Audio is extracted from the active input and sent to both the optical (S/PDIF) output and the 3.5mm L/R analog output simultaneously. The optical output supports Dolby Digital, DTS 5.1, and PCM 2.0. The 3.5mm output supports PCM 2.0 stereo only. Audio can be muted using the Mute button on the remote.

Q: Can the UHD-14VW be integrated with a control system?
A: Yes. In addition to the front panel buttons and the included IR remote, the UHD-14VW supports RS-232 serial commands. Connect it to a PC or control system processor via the RS-232 port using a 3-pin phoenix connector cable and an RS-232 to USB adapter. Commands can control power, input selection, video wall mode, output resolution, bezel compensation, image rotation, and audio mute.