Lenovo 2467-HB1, User Manual

120Hz Double Frame Rate Technique 

1.

The 120Hz Double Frame Rate Technique Introduction 

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The 120Hz Double Frame Rate Technique speeds up the image refresh rate from 50/60Hz up to 100/120Hz 
by a Motion Estimation and Motion Compensation (MEMC) control circuit to compensate an inter-frame 
through the storage and operation method to insert back into its original frame stream for playing. This 
technique improves the image dragging and image flickering that occurred from playing motion frames, and 
provides viewers smoother motion images. 

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Operating modes of 120Hz Double Frame Rate Technique 

The L2461x Wide Display provides three operating modes: 

(1) 120Hz 

On:  Recommended for playing video files at full screen. 

(2)  120Hz Off:  Recommended for normal PC operating; such as Web browsing or words processing. 

(3)  120Hz Split:  Recommended for playing video files at full screen. You can clearly see the superiority of 

the 120Hz technique. 

2.

The 120Hz Double Frame Rate Configuration 
2.1  Check the film property to see if it is made of 50Hz or 60Hz standard. 

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Check the film message. Check the disk standard. Is it NTSC(60Hz) or PAL(50Hz)? 
NTSC Standard: USA, Canada, Japan, South Korea, and Taiwan, etc. 
PAL Standard: UK, Europe, China, Australia, Singapore, and Hong Kong, etc. 

2.2  Using DVD player device 

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In order to reach a smooth film-playing effect, please check the film standard or vsync is in accordance 
with the DVD player output before playing film. According to the disk property to select NTSC(60Hz) or 
PAL(50Hz) refresh rate for the DVD player. 

2.3  Using PC media player 

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Setting the monitor to recommend resolution 1920x1080. In order to reach a smooth film-playing effect, 
please check the film standard or vsync is in accordance with the graphics card output before playing 
film. According to the disk property to select NTSC(60Hz) or PAL(50Hz) refresh rate for the display. 

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For detailed configuration, please refer to the displayÊs instruction manual on page

 37 

regarding 

„Configuring the 120Hz Double Frame Rate.‰ 

3.

Q & A 

Q:  Why the effect of 120Hz Double Frame Rate technique is not obvious? 

A:  Please check the film standard to see if it is in accordance with the output frequency. Please refer to the 

previous paragraph on „Configuring the 120Hz Double Frame Rate.‰ 

Q:  Is it possible to adjust the displayÊs refresh rate up to higher than 60Hz? 

A:  No. Due to the adoption of 120Hz Double Frame Rate technique, the highest refresh rate can only be adjusted 

up to 60Hz. 

Q:  Why the image flickering occurs occasionally when moving mouse pointer or windows on PC? 

A:  As the main function of the 120Hz Double Frame Rate technique is to optimize the motion images, and so the 

act of moving mouse pointer or windows will be treated and processed as a motion image. That is why the 
flickering occurs occasionally. We suggest users to turn on the 120Hz function when watching film, but turn 
it off when in regular operation. 

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 Wide Flat Panel Monitor User’s Guide