The Notes of the using LCD monitor you should know

LCD and CRT works differently, use should be noted

Note 1: The refresh rate

Monitor refresh rate is the vertical scanning frequency (field frequency), it refers to the second screen within the electron gun to scan the entire number, in Hz (Hertz) as a unit. For CRT monitors for,
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CRT displays the image on the display by many fluorescent dots, each fluorescent point are under the electron beam hit the light, but fluorescent light for a short time point, so continue to have the electron beam hit refresh light-emitting phosphors to make continuous play, and only refresh fast enough, the human eye to see the last picture is more stable, it will not feel the screen flicker and jitter, eye they will not fatigue. Therefore, CRT monitors refresh rate in the relevant resolution of not less than 85Hz in order to make people more comfortable seeing.

And CRT display screen will be divided into a number of “scan lines” to refresh the screen flashing problem will be compared, LCD image is not generated by the scanning electron gun, but whether the light is controlled by controlling the light and dark, so is the LCD refresh the entire width of the screen is refreshed, LCD even at low refresh rate (eg 60Hz), it will not appear flicker,
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image stabilization. Therefore, when adjusting the LCD to increase the refresh rate without using 60Hz (1024 × 768 resolution) / 75Hz (1280 × 1024 resolution) or “default display adapter” can be.

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

Note 2: Number of colors

We know that the current mainstream CRT color monitors are supported 32-bit true color, but the LCD is not always the case. The vast majority of the market entry-level LCD panels used in LCD panels are 6bit, it can only display 262,144 kinds of colors (64 × 64 × 64 = 262144), and only 8bit panel can display 16,777,216 colors (256 × 256 × 256 = 16777216).

So adjust 6bit entry-level LCD panel is displayed when “Color” tune to “High Color (16 bit)” will be able to meet the demand, so call for more memory cards to support high-color, but wasteful.

Note 3: Viewing Angle

Display viewing angle is from a different direction can clearly see the screen all the content on the maximum angle, CRT monitors theoretically close to the upper and lower viewing angle / around 180 degrees. LCD is the use of light transmission due to imaging, so the
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LCD viewing angle is smaller than CRT monitor – the LCD, the direct and oblique light will penetrate the same display area of ​​pixels, so larger than the viewing angle from the outside angle viewing screen will find a ghost image and change color and so on.

LCD monitors currently on the market level (or so) viewing angle is generally 120 degrees, and vertical (up and down) viewing angle to some smaller, generally 100 degrees or more. In use to get a better viewing angle, in addition to adjusting the display angle to try sitting or being on the LCD, but may be appropriate to increase the brightness of the LCD, which allows the LCD to get the maximum viewing angle available to play.

Note 4: response time

Signal response time of LCD is liquid crystal display unit latency, is the molecular arrangement of liquid crystal cell from one state into another state of molecular arrangement of the time required, that the screen from dark to light or the speed of light turn dark. Response time as short as possible, it reflects the LCD input signal of each pixel response speed, response time will generally be divided into two parts: the rise time (Rise time) and fall time (Fall time), that when the two and those of the subject, not one-way.

Current mainstream LCD 25ms response time can be less than the mainstream models of new and more between the 8ms ~ 16ms. = 1/0.025 = 25 ms shows 40 frames per second, has been able to meet the needs of
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video playback; = 1/0.016 = 16 ms display 63 images per second, has been able to meet the needs of most of the game; 12 ms = 1/0.012 = display 83 images per second, but due to the LCD refresh rate of 60/75Hz restrictions generally less than 12ms per 83 images. Therefore, the current mainstream LCD monitor is fully able to meet the general user needs DVD playback and games.

Note 5: Resolution

Conventional CRT displays as long as the line frequency and bandwidth sufficient to support the general stable within the resolution it supports all screen displays full-screen stability. And the LCD pixels is fixed, so only the best LCD resolution (maximum resolution, 15-inch LCD, the best resolution of 1024 × 768,17 ~ 19 inches is usually the best resolution 1280 × 1024) under to show the best image.

Note 6: Point Defects

CRT monitors will not display the basic “point defects”, while the LCD display “point defects (including dead pixels or dark spots, bright spots)” from the LCD has been there since birth. The so-called point defects is the LCD in a pixel LCD screen is damaged, the emergence of a sustained bright, not bright or monochromatic light, do not accept dead pixel off signal.

In use to avoid the increase of point defects, should pay attention to three main aspects:

① avoid using it, or collision with hard objects touch the LCD screen.

② Avoid using or handling the process of vibration.

③ Do not use the LCD to develop good habits should be readily turned off.

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