One of the biggest TV developments at CES 2025 was a new fourth-generation 'four-stack' OLED panel developed by LG Display, an independent wing of LG that provides the raw display panels for LG Electronics and other TV makers.

The Primary RGB Tandem structure applied to the fourth-generation OLED TV panel organizes the light source into four stacks by adding two layers of blue elements and independent layers of red and green elements. It improves maximum brightness by increasing the amount of light produced by each layer compared to the previous structure.

CES 2025, held in Las Vegas from Tuesday to Friday this week, is one of the world's largest tech trade shows where companies unveil their latest innovations. This year, among the standout announcements is an LG OLED TV, claiming to be the "brightest TV on the market”.

LG has unveiled the next generation of its OLED technology, which it says is brighter and more energy efficient than ever.

LG Display Co. on Thursday unveiled its new fourth-generation organic light-emitting diode (OLED) panel designed for artificial intelligence (AI) TVs as part of its push to lead the premium screen market.