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Control LCD TV Display through LAN

I have an application which I need to show on an LCD TV.

Here's my current setup. I have a PC which supports dual monitor. The DVI output is connected to the computer monitor as the primary monitor and the VGA output is connected to the LCD TV as the secondary monitor (extended). To show my application on the LCD TV, I simply position the window of my application on the coordinates of the secondary monitor.

Now, is it possible to control the display of the LCD TV through LAN? If it is possible, what features (of the LCD TV) should be available and what additional hardwares will I need?

Thanks
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Thomasian
Asked:
Thomasian
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3 Solutions
 
FeebleminderCommented:
What your asking doesn't make sense, what exactly are you trying to control. The TV is only a display and can't be controlled. Now your computer can if that is what you were intending
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ThomasianAuthor Commented:
"Control" might not be the right word. Let's say I want the video source of the LCD display connected to LAN.

i.e. In my current setup, the LCD display is connected directly to the PC through a VGA cable. I was hoping that there's a way that I can send the video signal through LAN.
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FeebleminderCommented:
Does your TV have wireless capabilities or an Ethernet plug?
If so, then you should have no problem connecting to your media through those means.
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ThomasianAuthor Commented:
>>Does your TV have wireless capabilities or an Ethernet plug?
I will be buying the TV based on the features I will need.

>>If so, then you should have no problem connecting to your media through those means.
If the TV has an ethernet plug, how will it work? Will I connect it to a switch our network? Will it have it's own IP address? How do I then send the "video signal" to the LCD TV?
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jamietonerCommented:
If you wanted to play a video this would be possible with dnla however want you are wanting isnt currently possible through lan.
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ThomasianAuthor Commented:
I saw this device which converts VGA signals and then connects it to an ethernet port. But it doesn't seem to have a device that converts it back to VGA so that I can connect it directly to an LCD TV.

http://www.epiphan.com/products/frame-grabbers/vga2ethernet?gclid=CITXk9yW6qsCFWVV4godtSZRIA


Do you think something like this would work for me?
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jamietonerCommented:
I doubt it, as it requires software on the ethernet side of the device. Why are you needing it to be networked is the tv going to be far away from the laptop?
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FeebleminderCommented:
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ThomasianAuthor Commented:
>>I doubt it, as it requires software on the ethernet side of the device.
Yeah, that seems to be the current setup. But I believe it should be feasible, if they can make a device that changes VGA signals to IP packets then they should be able to make one to change it back.

>>Why are you needing it to be networked is the tv going to be far away from the laptop?
Let's say I want to show some announcements on an LCD TV on the cafeteria. If what I am looking for is possible, I can just put a PC on the office to "send the display" to the LCD TV through LAN. Or even better, maybe I can put multiple "receivers" to show duplicate displays on multiple LCD TVs on different locations.

>>There is another solution... you can use a wireless VGA adapter that you connect to your TV and laptop...
I would consider this option. But reviews are saying that it has poor range. This will also be nice if it allows a single transmitter to be paired with multiple receivers.
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jamietonerCommented:
They make video extenders(vga and dvi) that use network cable but they have to be straight runs(no switches, routers, etc).
http://www.newegg.com/Product/Product.aspx?Item=N82E16815158236
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marsiliesCommented:
We use this solution at our work:
http://www.networktechinc.com/vga-extender.html

Similar to jamietoner's solution, this requires straight-run LAN cables, but you can hook multiple receivers up to one transmitter.

If you need to run the signal over IP and through switches, this solution may be better, which requires HDMI in and out:
http://www.networktechinc.com/ip-hdmi.html


Another option would be to try and stream the desktop display using DLNA. This would require DLNA-capable displays with LAN ports:
http://alenblog.wordpress.com/2011/04/21/stream-computer-desktop-to-tv-using-dlna-tversity-and-vlc/
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ThomasianAuthor Commented:
Thanks for the suggestions!
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