As the penetration rate of VA (Vertical Alignment) panels continues to rise in the display and television sectors, their advantages such as high contrast and eye-protection features have been highly favored by consumers. However, many users have encountered problems such as ghosting and panel damage during use. By combining industry technical materials and equipment manufacturer guidelines, the following are the core precautions for using VA screens, which can help users maximize the performance of the equipment and extend its lifespan.
I. Physical Protection: Be Alert to the Damage Risks Caused by the "Soft Screen" Feature
The VA screen is made of soft screen material, and its physical structure makes it less resistant to impact. ViewSonic and other manufacturers clearly warn users in their user guides that they should avoid pressing the screen with their fingers or rubbing the panel, as this can easily cause irreparable mar patterns or pixel damage. During daily cleaning, use a soft dry cloth to wipe the screen. If the stains are stubborn, dip a small amount of pure water, but avoid using alcohol, cleaning agents, etc. chemical reagents. At the same time, the monitor should be placed in a well-ventilated area, leaving at least 10 cm of space around it to ensure heat dissipation and avoid direct sunlight or proximity to heat sources such as heaters.
II. Picture Optimization: Targeted Solutions for Jitter and Color Deviation
Jitter is the most concerned issue of VA screens, especially on 60Hz refresh rate models. Technical experts point out that it can be alleviated through three settings: First, enable OverDrive acceleration technology to set the response time to within 4ms (high-end models can reach 1ms); second, enable vertical synchronization (V-Sync) in gaming scenarios to synchronize the frame rate with the refresh rate; third, switch to the "game mode" of the monitor to reduce input latency. For the problem of color deviation at the edge of curved VA screens, it is recommended to match the screen curvature with the size - 27-inch models should choose a 1500R curvature, and those larger than 32 inches should be adapted to a 1800R curvature.
III. Environmental Adaptation: Dual Control of Low Temperature and Humidity
The response speed of the liquid crystal molecules of VA screens is significantly affected by temperature. The test shows that in low-temperature environments, the response time will increase by 0.5-1ms, resulting in a decrease in picture smoothness. Users in northern winters should be aware that they should avoid placing the device in unheated balconies, garages, etc. If the environmental temperature is below 5℃, it is recommended to power on for 10 minutes before using. At the same time, the device should be away from humid environments. Bathrooms, kitchens, etc. are prone to causing internal circuits to get damp, increasing the risk of short circuits.
IV. Parameter Calibration: Regular Maintenance to Ensure Display Quality
Although the average lifespan of VA screens has reached 60,000 hours, the color accuracy will decrease after long-term use. Professionals suggest performing color calibration every 3-6 months, adjusting the color gamut parameters through the built-in calibration function of the monitor or third-party software - for design scenarios, ensure that the DCI-P3 color gamut covers 90% or more, and for office scenarios, focus on sRGB color gamut calibration. The brightness setting also needs to be adapted to the scene: for daily office use, maintaining 300cd/m² can alleviate visual fatigue, and for watching, it can be reduced to 200cd/m² to highlight the details in the dark areas.
V. Scene Matching: Avoiding Scenes with Technical Limitations
The technical characteristics of VA screens determine that there are obvious scene adaptation boundaries. Data shows that its dark areas have 15%-20% more levels than IPS panels, suitable for static or slow dynamic scenes such as film editing and text office work. However, in FPS games, even with optimized settings, there may still be slight jitter. In addition, when viewed from an angle exceeding 178 degrees, a white phenomenon may occur. When sharing the screen with multiple people, the viewing position should be adjusted.
VI. Long-term Maintenance: Standard Operating Procedures for Storage and Transportation
When the device is not in use for a long time, unplug the power plug to avoid standby power consumption, and cover the screen with a dust-proof cloth to prevent dust from settling. During transportation, hold the device by both sides of the body, do not grasp the screen edge or the stand, especially for curved screen models, avoid squeezing the screen edge. If there are abnormal situations such as smoke or strange sounds, immediately cut off the power and contact a professional for repair. Do not attempt to remove the back cover to touch the high-voltage components. Industry analysts have stated that as the third-generation VA technology reduces the native response time to less than 3ms, its applicable scenarios are continuously expanding. However, correct usage and maintenance remain crucial for maximizing the performance of the equipment. Consumers can refer to the above suggestions based on their own needs to fully unleash the high contrast advantage of VA screens.
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