Sony SXRD 4K User Manual

  

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Sony launched the world's first commercially available 4K projectors.  That 

raises some obvious questions.  What is 4K?  What signal sources support it?  
For what applications is 4K suited?  And how do you get a 4K signal into the 
projectors?   

 

In the metric system, "K" is short for kilo, the prefix for 1000.  But in the 

binary system of computers, "K" equals 2 to the tenth power, or 1024.  In the 
jargon of digital cinema, "4K" refers to an image that's 4 x 1024, or 4096 pixels 
wide.  Sony 4K projectors achieve a resolution of 4096 pixels horizontal x 2160 
pixels vertical.  This is slightly more than four times the pixels of the highest high 
definition TV specification (1920 x 1080).  You can think of 4K as delivering four 
times the pixels per square inch.  For example, if you held a credit card up to a 
screen 27 feet wide, the card would be covered by over 1,000 pixels.  And each 
pixel would be the size of the letter "E" in the word LIBERTY on a US quarter.   

Greater immersion 

 

Just as high definition is more involving than standard definition, 4K is far 

more immersive than HD.  4K projection enables you to sit close to the screen 
and still retain the illusion of a seamless, continuous picture.  As you sit closer, 
you become more immersed in the visual experience.   

4096 H x 2160 V

8,847,360 pixels

1920 H x 1080 V

2,073,600 pixels

1280 H x 1024 V

1,310,720 pixels

720 H x 480 V

345,600 pixels