Sharp PC-A250 User Manual Page 12

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12
Normal Scan Native Scan (x2) Aspect Correction
SD 4:3
SD 16:9
(Squeeze)
487 x 2
487 x 2
Example of NTSC signal on the 16:9 aspect panel – BVM-E250A
720 x 487 Native Scan 1440 x 974 Native Scan (720 x 487) x 2
Convenient Features
Interlace Display
BVM-E and BVM-F Series monitors offer an Interlace Display feature for 1080i and SD
inputs. This lets each BVM-E and BVM-F monitor display these inputs as a true interlace
display. As with the Native Scan function, Interlace Display mode offers faithful
reproduction of the input signal, and the displayed interlace fields are free from the
picture degradation that can occur as a result of typical I/P conversion processes.
Scan Switch
The Scan Switch function allows switching between under scan (-3%), normal scan
(0%), and over scan (mask of the 5% over scan portion in the normal scan).
Native Scan (pixel-to-pixel display)
Conventional flat-panel monitors reproduce images using scaling and I/P conversion
due to their fixed pixel counts and progressive scanning processes. The Native Scan
function is a unique display mode that reproduces images without changing the
input signal’s pixel count.
For example, when an SD signal is input, the BVM-E and BVM-F Series monitors will
reproduce the image at a picture size of 720 x 487* pixels. For SD inputs the Native
Scan function also allows the displayed image size to be doubled to 1440 x 974* by
duplicating and doubling each pixel both horizontally and vertically.
* The 525/59.94i signal specified by Rec. ITU-R BT.601.
HD Frame Capture
The HD Frame Capture function of the BVM-E and BVM-F Series allow a picture
frame from the 3G-SDI and HD-SDI input to be captured and saved as a picture file
on MemoryStick media.* This picture file can be used as a reference for various
purposes; for example, as for picture-tone adjustments between past images and for
camera-framing adjustments.
* Memory Stick PRO (High-Speed) / Memory Stick PRO Duo (High-Speed) can be used.
Aspect Correction Mode
PAL and NTSC video systems are all based on rectangular pixels. Display of these
formats on a square pixel panel typically distorts the image. The BVM-E and BVM-F
Series use a unique process called Aspect Correction which, while still offering native
pixel performance, continues to display image geometry correctly. This scaling
technique used in BVM-E and BVM-F Series monitors corrects horizontal distortion while
keeping the vertical pixel count correctly displayed.
Aspect switch
The aspect ratio can be switched between 4:3, 16:9, 2.39: 1,
and 1.896:1 depending on the input signal.
* The BVM-F Series monitors support 16:9 and 4:3 only.
16:9 4:3
16:9
2.39:1
1.896:1
2.39:1
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