Why are the fonts on the computer screen blurred?

When a computer with integrated graphics is used for a long time, the appearance of the display screen font is blurred, especially on the liquid crystal display. Displaying a font blur can be prevented. The author gives us an analysis of the system font blurred in the end which are caused.

1. Host Power management settings:

More users when installing the system, in order to achieve the goal of energy-saving, in the host power management settings often on the display, hard disk and power supply limited time; In time, the limited equipment will be turned off, directly on the display of display is not displayed, users often think that the monitor has trouble, intermittent black screen, More customer action for this reason, at this point as long as the item is fixed to set the project OK.

2. Font blur accompanied by image jitter;

Because the water ripple and the focus are mutually influence contradictory body, if in the regulation of water ripple, in both horizontal and vertical adjustment to the maximum, horizontal and vertical cross interference, will appear font blurred and accompanied by image jitter phenomenon; At this point, do not worry, in the horizontal and vertical function adjustment back to adjust, take into account the water ripple and focus both OK.

3. Match the card with the requirements:

The monitor is required for the input signal (in the case of 797 units):

Video signal: A. Type: Simulation signal B. Standard: 0.7VP-PC. Input impedance: 75ωd. Polarity: Positive

Line sync: A. Type: TTLb. Input impedance: Min 1kωc. Polarity: positive or negative d. Frequency: 30khz~96khz

Field Sync: A. Type: TTLb. Input impedance: Min 1kωc. Polarity: positive or negative d. Frequency: 50hz~160hz

Because of the uneven graphics card on the market, if the card output signal is not in the above range, there will be no display, image phase deviation, image distortion, and so on, the user is often judged as poor display, in fact, did not find the root cause; In addition to exceeding the frequency range of no display, other bad image can be adjusted by OSD menu ;

4. Menu function adjustment and reset function:

(1). Menu Adjustment Function:

In the OSD menu, there is contrast, brightness, horizontal phase, the horizontal width, the field center, the field amplitude, the needle cushion shape, the ladder type, the parallelogram, the asymmetry type and so on nearly 20 regulation function, provides the user enters the new frequency, the pattern or changes the set mode to use, all preset mode can automatically store and the memory after completes.

(2). Reset function:

When the user through the adjustment function adjustment, if appears the more and more chaotic, that is, the user due to the operation of the error caused by the adjustment before the rule, the model can be reset by resetting the screen back to the factory set value, but only 13 or 15 groups (according to the different machine) factory preset mode (user commonly used mode) can reset, other modes can not be reset, Any mode that is not understood by more users can be reset.

5. Water Ripple Phenomenon:

The water ripple is the intrinsic mole phenomenon in the electron beam scanning phosphor, and any display will have different severity; Because of the high resolution of the new display now, this phenomenon is more common, but not a fault.

Solution: (1). Change the resolution set to: More than 75Hz, the contrast to the maximum, brightness settings in the 60~70% (or the background color just disappear), can be improved, but can not be cleared; (2). The use of the molar regulation function, completely clear the ripple diffraction; Because the factory in the production of the standard signal source production, can not predict after the factory with which graphics card, and the output of the video card is very large, so the factory will be the value set to 0, the user in the actual connection with the host can be used to adjust the molar function to eliminate water ripple phenomenon.