If you always wanted to know on How to Check TV Refresh Rate, then you have come to the right place.
What is TV Refresh Rate
By definition, the refresh rate identifies how often a television changes its frame or image on the screen. Traditional CRT televisions have a refresh rate of 60 Hz (or in simpler terms 60 times every second).
On the other hand, modern televisions have better and improved refresh rates. Some of the finest televisions in town have double the refresh rates of a traditional model. Both the high definition televisions and the 4K TVs have a refresh rate of 120 frames per second.
It is quite interesting that the refresh rate depends on the kind of electricity you receive in your location. That is why some countries have televisions with refresh rates of 50 frames per second or 100 frames per second.
Do refresh rates define the overall quality of the television? Can better refresh rates mean a better television? Or, is it just a marketing gimmick?
Well, high refresh rates help in reducing the overall motion blur in sophisticated TVs like the OLEDs and LCDs. Now, what doesn’t motion blur mean? Wow, glad we came to this point.
What is Motion Blur ?
OLED and LCD televisions have a common problem called Motion Blur. As suggested by its name, motion blur focuses on everything that is moving around in the screen. It could be anything like an entire image, or the screen. And, when the movement happens everything looks softer and blurs. It doesn’t remain stationery. This can destroy your viewing experience.
Most of the time, the motion blur is created only in your head. The brain identifies moving objects and it assumes that the object would move to a given position the very next second. However, OLED and LCD televisions hold the image in a fixed position for the complete 60th frame.
This means the brain smears the entire effect and thinks it has started moving the moment it captures a series of static images. This is quite interesting, and the actual details on motion blur are totally beyond the scope of this guide.
Refresh rate helps in rectifying the issues caused by motion blur. It is an effective part of the solution. But, increasing the refresh rate wouldn’t eliminate motion blur completely. Instead, it triggers a soap opera kind of effect. First of all, the TV undergoes frame interpolation.
This is where new hybrid frames are created before the old ones disappear. This tricks the brain and stops it from creating imaginary frames! After all, the expected frame would already be shown in the screen.
How Confusing Can it Get?
It is quite fascinating that the refresh rate is a very confusing topic! Television manufacturers have not given a discrete definition on how refresh rates work. Often, they double the refresh rate and flaunt it as a new feature.
As mentioned previously, 60 is the standard refresh rate for a television. But, you will rarely come across a television that claims its refresh rate to be 60. Instead, brands make use of newer technologies like black frame insertion and the above mentioned soap opera method to quote bigger refresh rates.
These claims are justified at times, and sometimes they are mere figures. Nevertheless, you should be able to identify the refresh rate of your television before buying it! Also, you should understand what the refresh rate means when you make a decision.
High refresh rates (figures like 240 and 120) have become common. Yet, none of these figures are actually accurate. To be honest, there is no 4K High definition television with a refresh rate more than 120 hertz.
Now, when brands quote a figure more than 120, it doesn’t have to be fake too. Here are few important points you should remember by refresh rates:
- The refresh rate is clearly the number of times a television refreshes its screen per second.
- Most movies are filed with 24 frames per second. And, live television programs are filmed at 30 to 60 frames per second.
- Conventional televisions refresh at only 60 frames per second. And, higher models refresh at 120. You will find old 1080 LCD televisions with a refresh rate of 240 hertz.
- The refresh rate is increased to reduce the impact of motion blur. Motion blur is a constant problem in newer television models.
- Many television manufacturers have introduced new technologies to improve the refresh rate. In fact, some brands have introduced an “Effective refresh rate”. Effective refresh rate refreshes the screen at a reduced rate.
What Happens with Every Refresh Rate?
It is quite clear that televisions support a range of refresh rates, from 24 to 60 to 120 frames per second. So, what really happens with every refresh rate?
Read till the end.
When a television is tagged as 120 frames per second, it doesn’t directly mean the TV produces finer motion. Indeed, the television will have few benefits over the 60 FPS ones.
It is very important for a television to play content at 24 frames per second. When a television is tagged as 60 Hz or lessor, the refresh rate of the TV panel is changed. In simpler terms, it is adjusted by the brand.
And, some devices like Chromecast are programmed to deliver content only at 60 Hz. Regardless of how sophisticated your device is, the final content will remain the same across all devices.
Since 24 FPS is not a factor of 60 Hz, problems may arise. When the movie is captured at 24 FPS, a technique called “3:2 pulldown” is been used. Here, the frames are repeated either 3 or 2 times. The viewer will not notice any change during the movie. That is because the juddery happens very quickly.
On the whole, it is important for you understand what your television’s refresh rate is. The figure will be quoted by the brand when you purchase the television. To be safer, you can always go to the television’s settings option and verify the refresh rate supported by the TV.
In fact, some televisions allow users to adjust the refresh rate manually.