Pure Hardware Video Wall Controller DDW-VPHXXXX
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Shenzhen DDW Technology Co.,Ltd
Homepage:
http://www.ddw.net
Alibaba:
http://ddw.en.alibaba.com
Global hotline: 400 852 822 Tel: 86-755-61825858 Fax: 86-755-23325820
ADD: F/4 Linquan building,#8 industrial park, #1 Donghuan road,Longhua, Bao'an, Shenzhen,China,518109
Figure 2.6 Size and position adjustment
6. Edge Cropping
For traditional LCD video wall, when for some display device, such like back-projection TV, flat panel
LCD/PDP or DLP, CRT and other display device with large frame, the video wall processor will face the
problems that, when it divides the video source to several part and distribute them to multiple display units,
the
video wall processor can’t crop the edge of each display unit to make the edge blended smoothly.
However, It adopts the innovated edge cropping technology, which is to crop the edge at pixel precision, in
order to blend the edge between any display units to be displayed as a complete and smooth screen. And
users can only enter the dimension of each display unit and the edge of each display. The video wall
processor will automatically calculate the size of edge need to be cropped.
Normal Before After
Figure 2.7 Before and after edge cropping
7. Edge pixel precision adjustment
In addition to Edge auto cropping, users can also manually adjust the pixel position of each displaying image
on each display unit, to realize the perfect edge blending. This is suitable for projector, rear-projection, and
DLP display device.
Before After
