Traditional 4K panel is made of R (red), G (green) and B (blue) color pixel units, with 3840 × 2160 resolution; in terms of WRGB panel is added a W(white)color pixel unit between every RGB matrix. By adding W (white) pixel, the physical resolution of the WRGB 4K panel can indeed achieve to 3840 × 2160, but the effective color resolution only about 1920 × 2160 (2K standard).

Currently, only Japan has established the standard of 4K panel of that effective color resolution should reach 3840×2160. There are no such specification in the other countries, where the controversy of fake 4K and true 4K came out.

Because of the manufactured process of WRGB 4K panel is simpler, led to lower production cost, the price of WRGB 4K TV is more affordable to the end users; As the traditional 4K panel, although there are advantages of color resolution, but the higher prices for consumers remains a big challenge.

Traditional 4K panels are mainly supplied by AUO and Innolux in Taiwan at present, South Korea's LG and Samsung currently is the small amount of production, and only used in the high-end models.

As WRGB 4K panel, it is the main product of South Korean 's LCD company in 4K segment, particularly LGD. LGD mainly produces WRGB 4K panel, and has a large amount of shipments in China, which resulting in penetration of 4K TVs have been rising, while pushing up LGD’s 4K market share.

Referring to the actual viewing experience, WRGB 4K TV has higher contrast, brighter, and with some cool colors; Traditional 4K TV is smooth, clear, closer to the real-world visual sense.

Whether traditional 4K or WRGB 4K has excellent display quality, if not compare the two side by side, it actually hard to see the difference for most people. And for consumers, price is still a major factor affecting the final purchase.

How value does the true 4K? and how many colors you can tell? Those are certainly the most critical factors in the 4K panel competition.