Notes on the monitor selection

Note a : Refresh rate

The display refresh rate is a vertical scanning frequency ( field frequency ) , it refers to the second internal electron gun for scanning the entire screen frequency , in Hz ( Hertz ) as a unit . For the CRT display , CRT monitors image displayed on the phosphor is composed of many points, each phosphor point of the electron beam hitting the light, but the phosphor dot light emitting time is very short, so to constantly refresh the electron beam hit emitting phosphor of the continuing fight to make , but only refresh fast enough, the human eye can see sustained more stable picture , it will not feel the screen flicker and jitter , eye fatigue is not easy . So CRT monitor refresh rate in the relevant resolution of not less than 85Hz to make people more comfortable seeing .

And CRT display screen is divided into a number of the " scan line" to refresh the screen flicker problem occurs compared , LCD image is not generated by electron gun scans , but is controlled by controlling whether translucent light and dark , so the LCD refresh is entire screen is refreshed , LCD even at lower refresh rate ( eg 60Hz) , it will not appear flicker , image stabilization.

So, do not increase when adjusting the LCD refresh rate , using 60Hz (1024 × 768 resolution ) / 75Hz (1280 × 1024 resolution ) or ' default display adapter "button.

In addition, we must choose to install the appropriate "Monitor" drive , it should not use CRT display the word " Monitor" driver should be installed with the distribution of liquid crystal display driver , monitor or display properties "Standard monitor types" in the " laptop display panel (1024 × 768 or 1280 × 1024)".

Note two : Number of colors

As we all know , the current mainstream CRT color monitors are supported by 32-bit true color , but the LCD is not always the case. Entry on the market most of the liquid crystal panel LCD are used 6bit panel, which can display up to 262,144 colors (64 × 64 × 64 = 262144), and only 8bit panel can display 16,777,216 colors (256 × 256 × 256 = 16777216 ) . So adjust 6bit panel entry-level LCD will be displayed colors.

Note III: Viewing Angle

Display viewing angle is measured from different directions can clearly see all the content on the screen the maximum angle , CRT monitors viewing angle is theoretically accessible pan / tilt 180 degrees. Since the LCD is the use of light transmission to imaging, so the LCD viewing angle is smaller compared to a CRT monitor - in the LCD , direct and oblique light will penetrate the same pixel display area , so from the outside viewing angle greater than the angle will find that when viewing the screen image ghosting and color and so on .

Currently available level of a liquid crystal display ( left ) Viewing angle is generally 120 degrees, and the vertical (up and down ) to be slightly smaller viewing angle , 100 degrees or more in general . In use to get a better viewing angle, besides adjusting the angle of the display to minimize sitting or being outside of the LCD may be appropriate to increase the brightness of thelcm module , which also makes available the LCD viewing angle is maximized .

Note IV: Response Time

A liquid crystal display signal response time delay in response of the liquid crystal cell , is the molecular arrangement of the liquid crystal cell from one state into another state of molecular arrangement of the time required for the screen from dark to bright or dark by the light switch speed. Response time as short as possible , it reflects each pixel LCD monitor reaction rate of the input signal , the response time will generally be divided into two parts: the rise time (Risetime) and fall time (Falltime), whichever is expressed and the subject is not one-way .

The current mainstream lcd modules 25ms response time can do within the new mainstream models more in between 8ms ~ 16ms . = 1/0.025 = 25 ms display 40 pictures per second , has been able to meet the needs of video playback ; 16 ms = 1/0.016 = 63 frame per second display , has been able to meet most of the needs of the game ; 12 ms = 1/0.012 = 83 second display screen , but due to the restrictions 12ms LCD refresh rate 60/75Hz generally not up to 83 pictures per second . Therefore, the current mainstream LCD monitor is fully able to meet the general user DVD players and gaming needs.

Note five : Resolution

Traditional CRT monitors as long as the line frequency and bandwidth sufficient to stabilize the general support it supports the resolution of all stable full screen display .