Optimize images for LCD screens

Having to spend most of your time working on a computer, you feel too tired, and uncomfortable working with an old CRT monitor. Owning the LCD screen for your work is not too high demand because the price and type of LCD screen is very diverse and suitable to all requirements of users.

However, to calibrate the LCD monitor so that it is appropriate, the most optimal one is completely different from CRT screens, although the configuration settings are not much different from CRT. This article will help you read the optimal image, best quality with LCD screen.

Install the driver for the latest graphics card

First of all, to get the best image quality you want, a big part depends on the graphics card and the computer's chipset. Make sure you have updated the driver for the latest video card, which is the simplest and fastest way to optimize image quality. To upgrade, download the latest driver from the manufacturer's homepage and execute the installation file (.exe).

In some cases, you need to perform the installation manually. In Windows XP, right-click My Computer , select Properties , and select Hardware , Device Manager , and double-click " Display adapters ". Next, select Update Driver in the Driver tab.

Note: Some drivers require a PC reboot. You should not download the beta versions of these drivers either. They are being tested and most likely cause unexpected errors.

Read clearer text with ClearType

ClearType function in Windows XP.

Windows XP supports ClearType technology that makes fonts look smoother and clearer for documents on the LCD screen. To use this technology, click Appearance -> Display Properties -> select Effects , and check the Use the following method to smooth screen fonts , click ClearType from the drop-down menu. Click OK to finish.

Update the latest DirectX

DirectX is a Windows technology that enhances graphics and audio capabilities. Please update to the latest DirectX version (DirectX 9.0c). You can easily download the latest version of DirectX at Microsoft's home page. To find out which version of DirectX you're using, click Start-> Run , and type dxdiag and press Enter . Next click on the System tab to see the version you are using.

Screen resolution

In CRT monitors, screen resolutions are numbers of dots, pixels, to represent images on the screen. You can increase the resolution to a higher level, or lower it to your liking without compromising the image quality. However, this is completely wrong with LCD. The LCD screen will display the best and deliver the highest quality with just one standard resolution.

Most 15 "LCD monitors have a standard resolution of 1024x768, while the 17" or 19 "screens for optimal resolution are 1280x1024. image, image size changes, or leads to image distortion, pixel loss . However, there is one exception: when increasing or decreasing the resolution by only half the standard resolution, the image quality is still quite good. For example, the original resolution of 1600x1200 is reduced to 800x600 when the image quality is good and not distorted.

Color quality

The more colors the screen displays, the higher the fidelity of the image. Most PCs require support for the highest color settings, usually in 32-bit color mode. But if you are using integrated graphics, this can reduce computer performance, reduce the amount of color to 24 bits or 16 bits to speed up the system.

Refresh rate and response time ( response time )

CRT monitors are often blinking, causing eye strain and discomfort to the user, probably because the setting of the refresh rate is too low. Useful advice for users is to set the resolution that the monitor supports the minimum refresh rate at 72 Hz to avoid eye strain.

However, with the LCD screen, the screen is flickering is not a problem because the device does not refresh the entire screen but only changes the pixel. The refresh rate only at 40 Hz to 60 Hz for LCD monitors is good enough. Another issue that needs to be noted for LCD monitor users, especially gamers, is the screen response time. The response frequency is the amount of time it takes for a pixel to be converted from black to white and to black again. Older LCD monitors often have a response time slower than 20 ms but recently LCD screens have a much faster response time, high-end screens have a response time of 12 ms or less.

Tweak with the control buttons

When using an LCD or CRT monitor, do not be afraid to grope its controls. The appropriate settings can bring a much sharper and great image than the pre-set from the manufacturer.

LCD screens are often easier to adjust than CRT. Very rarely do you have to adjust the screen to the left, right, up or down . just like CRT. However, the LCD monitor also supports buttons or settings that automatically adjust the position of the screen. Finally, LCD monitors often require less color correction or contrast when selected at standard resolution.

Brightness and contrast

Set the brightness to manage the brightness of the screen. LCD screens are usually brighter than CRT screens, so increasing the brightness may be unnecessary and produce undesirable results. Adjust contrast using gray charts like programs like DisplayMate to provide the best gray expression. LCD screens often cause loss of dark details at the end of this range.

Shades and warmth of colors

There are two different types of light sources: cold white-green light source and hot white-red light source. Most screens offer at least 3 options and the color or warmness of the color based on the light source where the monitor is located. These settings are labeled Mode1, Mode 2, Mode 3 corresponding to High, Medium and Low. In addition, manufacturers often set the color temperature based on Kelvin (K). Normally the standard setting is 9300K or neutral with 6500K and reddish shades with 5000K. Many types of LCDs allow users to fine-tune colors by balancing three basic colors of red, blue, and green.

Diagnosis of diseases for LCD

LCD monitors are easier to maintain and maintain than CRT monitors. However, before shopping and using, you need to pay attention to the two common "diseases" of LCDs:

Screen blank

If the power light is still on and the picture is not displayed, check the connection between the LCD monitor and the PC to make sure that the screen still receives a video signal. If the video signal cable is still plugged in at both ends, try connecting another monitor to the PC to make sure that the cable or graphics card is working properly. If the second screen shows up well, it is likely that the LCD screen is broken. If the LCD screen is still under warranty, please bring it to the service center.

Dead spots on the LCD screen

Most LCD display manufacturers cannot guarantee that there are no dead spots in their products. These dead spots are often uncomfortable for users but the number of dead pixels allowed for each screen is from 3 to 10 dead spots. Therefore, the ability to change a new screen when dead spots are very difficult. Therefore, before buying an LCD monitor, turn on the monitor and watch carefully for any dead spots before purchasing.

Minh Phuc