NEC Projector Np4000 User Manual

							
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Aspect Ratio 
Aspect Ratio alters the appearance or Ratio of the projected image. The NP4000 and 
NP4001 support different Aspect Ratio options as shown. 
NP4000 Aspect Ratio Options:
 
 
4:3 – Standard TV screen (4:3), proportionally four units wide for every three units high, 
no matter the size of the screen. 
16:9  – A wide-screen aspect ratio for video. 
Crop  – Crop the image. 
Native  – Displays the current image in its true resolution. 
Normal  – Displays the current image in its aspect ratio. 
  
						

							
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NP4001 Aspect Ratio Options: 
 
4:3 – Standard TV screen (4:3), proportionally four units wide for every three units high, 
no matter the size of the screen. 
16:9  – A wide-screen aspect ratio for video. 
15:9  – Uses the full display. 
Letterbox  – Reduced image to display the true aspect with black borders on top and bot-
tom. 
Native  – Displays the current image in its true resolution. 
Normal  – Displays the current image in its aspect ratio.  
  
						

							
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Overscan 
Video images normally exceed the size of the display screen. The edge of the picture 
may or may not de displayed correctly. The  border area that is cropped can be adjusted 
by using the Overscan menu. 
 
Set the overscan percentage between 0 – 15% to  compensate for different screen sizes. 
 
WXGA Mode (NP4001 only) 
 
Selecting On will give priority to a WXGA (1280 x 768) signal in recognizing an input 
signal. 
When WXGA Mode is set to On, an XGA (1024 x 768) signal may not be recognized 
on NP4001. In this case, select Off. 
To check if the signal is recognized,  go to Source under Information menu.  
(see page 
97 )  
						

							
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Video Menu 
The Video menu is used to configure image options such as deinterlace and telecine. 
Access the Video menu in the Adjust menu. 
 
The following table lists all functions with a description and the default setting. A detailed 
description follows the table. 
ITEM DESCRIPTION 
Noise 
Reduction  Select Noise Reduction mode (see page 74
). 
3D Y/C  
Separation  Select 3D Y/C Separation mode (see page
 74). 
Deinterlace 
Select Deinterlace mode (see page 74). 
Color 
Matrix  Select Color Matrix mode (see page 75
). 
Telecine  Select Telecine mode (see 4Telecine on page 75).  
						

							
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Noise Reduction 
Select the level of noise reduction required. 
 
Range: Off, Low, Medium, High. 
 
3D Y/C Separation 
3D Y/C Separation separates composite signal to Y (brightness) signal and C (color) 
signal, and can help to produce clearer and sharper images without overlapping colors 
(rainbow effect). 
 
Set 3D Y/C Separation On or Off. 
Deinterlace 
Deinterlace converts an interlaced image to a progressive scan image. 
 
Select the form of Deinterlacing required from:   Still – Select for stills such as sl ide projections or screen shots. 
Normal  – Select Normal for non-specialized projection. 
Movie  – Select for movie projection.  
						

							
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Color Matrix 
Color Matrices define the amount of the three-color components R (red), G (green), and 
B (blue) in a single point in color space. 
 
Select from the following: 
Auto  – Auto selects the color matrix. 
RGB  – Sets the color matrix to RGB, use for PC monitor or camera imaging. 
SDTV  – Sets the color matrix to SDTV, use for Standard Definition imaging. 
HDTV  – Sets the color matrix to HDTV, use for High Definition imaging. 
 
Telecine 
Telecine aids in converting motion picture f ilm images into video. The process adds ad-
ditional frames to the picture in order to increase the frame rate. 
Note: 
This feature is only available when  deinterlace is turned on and SDTV  
signal is selected. 
 
Select from the following: 
Off  – Telecine mode is turned off. 
2-2/2-3 Auto  – Detects pull-down correction method. 
2-2 On  – Uses 2-2 pull-down correction method. 
2-3 On  - Uses 2-3 pull-down correction method.  
						

							
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s Detail Settings Menu Descriptions and Functions 
The Detail Settings menu contains basic and advanced color adjustment options such as 
gamma correction, color contrast and color correction.  
General 
The General tab contains general Detail Settings such as gamma correction and color 
temperature. Access to the General tab is through the Detail Settings menu. 
 
The following table lists all functions with a brief description. 
ITEM DESCRIPTION 
Reference  Set Reference mode (see page  77). 
Gamma  
Correction  Select Gamma Correction mode (see page 77
). 
Color  
Temperature  Set the color temperature value in
 Kelvin (K). Compensate for the 
amount of light available. Da ylight is approximately 5500K. 
BrilliantColorTM Set the BrilliantColor value. Brilliant
Color extends the exposure range 
and sharpens detail for grain free images.   
						

							
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Reference 
The Reference mode allows the projector to differentiate between source materials for 
example movies, PC images or video stills. 
 
Select from the following: 
High-Bright  – Select for use in a brightly lit room. 
Presentation  – Select if the projector is to be used for presentation purposes. 
Video  – Select for video projection. 
Movie  – Select for Movie projection. 
Graphic  – Select Graphic for still images. 
sRGB  – Select for projecting PC or web page images. 
 
Gamma Correction 
Gamma Correction enables adjustment to the light intensity (brightness) of an image in 
order to match the source more closely. 
 
Select from the following: 
Dynamic  – Allows the projector to dynamically  alter the gamma correction automatically. 
Natural  – Attempts to emulate the original source as closely as possible. 
Black Detail  – Black Detail highlights boundaries between light and dark areas of the 
image more clearly.  
						

							
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White Balance 
White Balance allows the projector to compensate for different colors of light being emit-
ted by different light sources. 
 
The following table lists all functions with a brief description. 
ITEM DESCRIPTION 
Brightness R  Set the Brightness R value  to compensate for red light sources. 
Brightness G  Set the Brightness G value to  compensate for green light sources. 
Brightness B  Set the Brightness B value to compensate for blue light sources. 
Contrast R  Set the Contrast R value to compensate for red light sources. 
Contrast G  Set the Contrast G value to compensate for green light sources. 
Contrast B  Set the Contrast B value to compensate for blue light sources.