Hi res LED displays

[tdangelo]

Originally Posted by Brad Weber

And at roughly 12"x16" per tile, a 9'x16' image would be 9 tiles high and 12 tiles wide, or 108 tiles. List price of the MicroTiles is closer to $3,500 each plus you need mounting brackets, multiple processors, etc. And anywhere from around 80 to 120 Amps of 120VAC service. You probably won't find 'retail' costs for the MicroTiles or any similar video wall products as these are usually systems sold through qualified professional dealers and not commodity products.

A 9’ x 16’ image with Micro Tiles would be a 81 tile wall (9x9 tiles, not 9x12 tiles), which could run on four 15 amp (110v) circuits (actual draw 52 amps @ 110v) at full brightness. If the brightness is decreased the power consuption goes down. Weight is 1,650 lbs.

Such a system should be in the ballpark of $320,600.00.

[Ace in the hole]

Thanks for the info Tom. I did talk to a Christie rep and he said about the same as you, it would be in the ballpark of $300,000 for what I am looking to do. Very nice product but not really in our budget.

What is the general resolution that most churches use for screens of the size I am looking at, 8x14 to 9x16 size range? I am looking at a couple of 8000 lumen projectors that are 1920x1080 resolution.

[Brad Weber]

Originally Posted by tdangelo

A 9’ x 16’ image with Micro Tiles would be a 81 tile wall (9x9 tiles, not 9x12 tiles), which could run on four 15 amp (110v) circuits (actual draw 52 amps @ 110v) at full brightness. If the brightness is decreased the power consuption goes down. Weight is 1,650 lbs.

Such a system should be in the ballpark of $320,600.00.

According the MicroTile product information, the tiles are nominally 16"x12" (12.05" high by 16.06" wide), which is a 4:3 format, so a square array, e.g. 9x9, would thus result in a 4:3 format overall image. However, 16'x9' is a 16:9 format, thus it would not equate to a square array. For the 9' vertical dimension desired, 9'/12" per tile gives the 9 tile height. And for the 16' horizontal dimension desired, 16'/16" per tile equates to 12 tiles wide. Thus a 9x12 array.

A 9x12 array is also what the Christie MicroTile Designer software indicates will provide a 9'x16' overall image. That software indicates that a 9x9 array would result in a 9'x12' overall image.

Christie recommends assuming 70-110W per tile for sizing power provisions (110W is full brightness and 70W a 'typical' operating level). So 70-110W per tile times 108 tiles is 7560-11880W. At 110V that is 68.73-108 Amps of load. You then have to derate that to determine the actual service required, so that's apparently 86-135 Amps of 110VAC service required.


As far as image resolution, it depends on what is being displayed and how close viewers may be. A projector that displays 720p video (1280x720 resolution) is probably fine for most video applications but may be a bit low resolution for some computer graphics images. You also won't find that many 1280x720 native resolution projectors. 1366x768 was common for widescreen graphics since it could directly display 1024x768 images as well, however it requires scaling any 720p, 1080i or 1080p video images, thus it is also no longer that common. 1920x1080 is probably more than most churches need for video but also allows for higher resolution graphics.

[tdangelo]

CORRECTION

A 9’ x 16’ image with Micro Tiles would be a 108 tile wall, which could run on four 20 amp (120v) circuits (actual draw 63 amps @ 120v) at full brightness. If the brightness is decreased the power consuption goes down. Weight is 2,190 lbs.

Such a system should be in the ballpark of $400,000.00.