You may be tempted to save some money by adding a connected socket to your OLED TV… but it’s a bad idea and we’ll explain why.
When a device is on standby, it uses electricity. According to a study carried out in the United States (Cnet), these devices on standby represent 5 to 10% of the overall consumption of a household. Due to rising electricity prices, we are trying to change our habits. In order to avoid unnecessary energy consumption, many people tend to unplug their electrical appliances. However, this is not a good idea for all devices.
OLED screens have functions that activate in standby
Unfortunately, OLED screens are the first devices not to be unplugged. OLED TVs in standby mode, including those from LG, perform a compensation process, also known as pixel refresh in French. This process is supposed to prevent the burning effect (burn in).
This is a problem with organic light-emitting diode (OLED) displays that is not a new phenomenon. It’s been around for as long as displays have existed, even old-fashioned CRT computer displays suffered from this problem. The term, by the way, comes to us from the days of CRT screens, on which the phosphor emitting light and generating the image loses its brightness over time.
Among the slew of tools, OLED TVs in standby mode therefore perform an automatic pixel refresh in the background after four hours of operation. If you unplug the device or turn off the mains power, the TV will not perform this operation. This may not be a problem in the short term, but over time the TV may produce ghosting, causing permanent degradation in picture quality.
For a long time, LG did not communicate on this function in its official documentation, we can now find the term Pixel Refresher :
The Pixel Refresher function built into LG OLED TVs automatically detects pixel degradation through regular scanning and compensates for it if necessary. The feature also detects any change in TFT (Thin Film Transistor) voltage during power down to prevent pixel degradation and to correct by comparing it to a fixed reference value.
Now all we have to do is consult our OLED buying guide or read our recent review of the LG OLED65G2.
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