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Introduction

Recently, I talked to a customer who was unhappy about the OSD (On-Screen-Display) popping up when sources are switched. “The OSD stays on for about 5-10 seconds and it is distracting users during collaboration or presentation. Is there a way to get rid of it?” Fortunately, there is an easy way to manage the OSD display on monitors and projectors.

 

With advancements in video technology, the compatibility between different video sources is improving every day, yet it is not at the level of being trouble-free. The combination of HDMI and HDCP standards with Consumer and Professional displays can leave integrators and users baffled when a video signal is not displayed.

 

Installing a powerful and flexible scaler next to a display or at the output of the AV System will resolve many incompatibility issues and provide a plethora of additional benefits that improve the user experience.

 

Discussion

Different options are available to manage the OSD on a display. Some displays have a menu selection to disable monitor OSD and some may not even show OSD if the selected signal has the same resolution as the previous signal. Most of the displays, however, will show the OSD as soon as the signal is switched.

 

The OSD display shown below presents an annoyance factor that users would like to eliminate. In some cases, the OSD is large enough to cover a portion of the display that needs to be visible.

 

Blog 11122015 - Figure 1 - Typical display when signal to display is switchedFigure 1: Typical display OSD when signal to the display is switched.

 

To manage the OSD on a display and improve video signal compatibility, I selected the VP500-102 universal digital scaler. The VP500-102 is designed to remove the OSD display and provide additional functions to make an Audio Visual installation easier by managing a display’s signal compatibility.

 

How does the VP500-102 assure that the OSD is not displayed? The output of the scaler is configured to generate an HDMI blank signal even if the input signal is removed. In other words, the connected display will never experience loss of signal or resolution change as it continually gets HDMI stream from the scaler.

 

This feature removes the (OSD) On Screen Display of “Signal Not Present” or “Connect Input.” In a way, installing the VP500-102 scaler makes technology more transparent to a user.

 

Blog 10062015 - Figure 2 - VP500-102 ScalerFigure 2: VP500-102 HDMI Scaler details.

 

I mounted this VP500-102 behind the display using double sided tape or Velcro. Placing the scaler next to a display offers several advantages: the digital scaler amplifies the incoming HDMI signal, output from the scaler is automatically adjusted to the native resolution of the display, and the scaler is easily accessible if adjustments need to be made. In addition, the VP500-102 has a built-in 3 ft. HDMI cable that connects directly to the HDMI input on the display.

 

Blog 11122015 - Figure 3 - VP500-102 is located behind a displayFigure 3: The VP500-102 is located behind a display and connects to display’s input.

Once the scaler is connected, you will never see the OSD display during video switching. The VP500-102 has other additional features that help installers resolve many HDMI issues. Some of these features include: Convert non-HDCP signal to HDCP signal, pass-through EDID or block EDID, select output resolution for video conferencing compatibility, and many more.

 

If you need to include a VP500-102 in your design drawings, we created an AVSnap library component. You can download AVSnap software from www.avsnap.com. If you need this symbol, just give us a call and we will send it to you.

 

Blog 11122015 - Figure 4 - VP500-102 AVSnap design diagram componentFigure 4: VP500-102 AVSnap design diagram component.