Versions Compared

Old Version 7

changes.mady.by.user BrightSign TechDocs

Saved on

compared with

New Version 8

changes.mady.by.user BrightSign TechDocs

Saved on

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

Overview 

A bezel is the physical frame around the display area of a panel, which usually contains a border of black (inactive) pixels that separate that display area from the display area on adjacent panels. If there is no compensation for the bezel, it can cause alignment issues. Bezel compensation, which discards the display content under the central bezels, should be applied to video walls to ensure that displayed images move smoothly across adjacent panels.


Panel
borderColor#3D3D3D
bgColor#F4F4F4
titleColor#3D3D3D
borderWidth0
titleBGColor#3D3D3D
borderStylesolid

ON THIS PAGE

Table of Contents
indent20px



Calculating the Size of a Screen Bezel

To calculate the size of a screen bezel in pixels from millimeters, you must multiply the screen width/height in pixels by the bezel size in millimeters, then divide by the screen width/height in millimeters.

For example, given

Example


Given:

  • A 2×2 four panel display wall (see Image 1)
  • The dimensions of each panel are1100mm x 620mm
  • 1100 mm = 1920 pixels and 620mm = 1080 pixels
  • The vertical bezel is 17mm and the horizontal bezel is 20
the


The number of pixels in the vertical bezel area is (1920 x 17) / 1100 = 30 pixels and the number of pixels in the horizontal bezel area is (1080 x 20) / 620 = 35 pixels.

 Add

 

Add the width (1920p + 30p + 1920p) to the height (1080p + 35p + 1080p) to get the total bezel-adjusted resolution (3870 x 2195 pixels).

Image Removed

Image Added

Image 1: Add the bezel area to the wall width and height get the total bezel-adjusted resolution.


Configuring a Video Wall with Bezel Compensation

To configure a 1x2 video wall with bezel compensation:

Code Block
languagejs
vm = CreateObject("roVideoMode")
sm = vm.GetScreenModes()

sm[0].video_mode = "1920x1080x60p"
sm[0].transform = "normal"
sm[0].display_x = 0
sm[0].display_y = 0
sm[0].enabled = true

sm[1].video_mode = "1920x1080x60p"
sm[1].transform = "normal"
sm[1].display_x = 0
sm[1].display_y = 1100    'Bezel compensation of 20 pixels 
sm[1].enabled = true

sm[2].enabled = "false"
sm[3].enabled = "false"

vm.SetScreenModes(sm)