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LG, at the beginning of this year, has come up with a wide range of OLED TVs which, as admitted by the company itself, has chances of having a problem if the variable refresh rate (VRR) is lower than 120 Hz. The problems might include flickering or instability in dark areas.

As stated by the company, this might affect users who use next-generation consoles. The wide range of OLED TVs, launched by LG, includes the first 48-inch OLED game TV. The price ranges between US $1,500 ( 9912 RMB, approx) to US $30,000 (approximately RMB 19,840).

Earlier in the month of July this year, LG has also stated that due to possible overheating issues, the company is on the verge of turning towards the 60,000 OLED TVs which are sold in South Korea in order to replace its power boards. Further, in the month of September, LG Electronics operating in China recalled 9434 OLED TVs because of the single quality problem of the capacitor (X-Cap). This capacitor (X-Cap) is used to eliminate the interface of the impurities in the input power supply. The current, as observed, in the power supply board increases and which in turn results in overheating.

According to some reports, the application of the VRR on OLED TVs by LG Electronics in 2019 and 2020 often causes a brightness shift in the image formed. This shift in the brightness makes comparatively darker areas in the game appear more dramatic compared to when the VRR is switched off.

In addition to this, reporters have come up with the news that OLED Association has earlier issued a press release on LG OLED TVs. LG in response to this Press release said that there are problems with new OLED TVs manufactured by them. The VRR, when enabled, will probably convert into a dark color while looking gray and refreshing. However, LG mentioned the OLED panel rather than the OLED TV itself responsible for the problem.

If the VRR is used while the refresh rate is not more than 120 Hz, it will make the OLED TV’s gamma curve to be in conflict with the refresh rate. To be more specific, a 120Hz frame rate is not longer than a 40Hz frame rate which indicates that a lower frame rate will probably make the pixels overcharge making the dark gray image to flicker. This is, as expected, is very common for dark images in comparison to bright images as the human eye is more responsive to low-gray colors than high-gray colors.

LG, to get over this issue has promised to try to “build multiple gamma curves”. These multiple gamma curves will reduce the refresh rate which will eventually solve the issues resulting from the VRR. However, it is very much improbable that the issue will get solutions in the form of firmware and there is no available better solution at present.

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