ICDM takes the lead in revising the evaluation standard RGBW is 4K TV technology

The birth of displays has opened up a whole new field of vision for human beings. With the rapid development of panel manufacturing processes and display technologies, the pursuit of high-definition images by humans is also constantly increasing. At the just-concluded 2016 China Digital TV Annual Grand Ceremony and China Smart Display Annual Festival, the authoritative Ovid Cloud Network (AVC) released the latest "2016 China Color TV Market Status Analysis and Trend Interpretation" report. According to the data, the global UHD TV panel penetration rate increased by 43% from January to April 2016, and the 49-inch to 65-inch key size panels all showed a significant increase over the same period of last year. It is not difficult to see that 4K ultra high definition televisions are becoming more and more popular among consumers and have become the absolute mainstream of the market. It is worth mentioning that in the current global 4K ultra high-definition television market, the Chinese market is the fastest growing, accounting for the largest proportion, and more and more TV manufacturers are also focusing on the development of the Chinese market.

Chinese consumers have always had a strong ability to accept new things and new technologies. Moreover, China’s relevant agencies also give strong support to new technologies including 4K new technologies, which is why Chinese 4K industries have been developing rapidly. The birth of any new technology will inevitably lead to different voices, traditional 4K technologies and differentiated 4K innovation technologies.

Innovative and differentiated technologies that trigger different voices in the industry

It is understood that there are only one RGB mode of display in the past. Therefore, the formulation of international standards or Chinese national standards is based on the RGB method. However, with the development of display technologies, display technologies that facilitate the display of high-resolution diversified structures have been successively developed. Among them, the first to be applied is Samsung's use of subpixel arrangements in the Galaxy smartphone. This is different from the RGB structure in which three sub-pixels of red (R)/green/(G) blue (B) constitute one pixel, and a single pixel consists of red (R)/green (G) or blue (B)/green (G ) The sub-pixel configuration has the advantage that high resolution can be more effectively presented. At the time, this highly efficient pixel structure was mainly used on mobile phones. Of course, during this period, there has been no special controversy about resolution. But as LG Display has developed an RGBW panel for UHD TVs with RGB-WRG-BWR-GBW structure and was adopted by domestic color TV manufacturers and launched 4K ultra high-definition TVs, the screens that did not appear on smartphones The resolution of the dispute has appeared in the television industry.


Samsung Electronics, the first to adopt a high-efficiency structure, believes that the RGBW method is not 4K Ultra HD and has caused controversy in the industry. In fact, the final controversy of all parties lies in the non-RGB other pixel structure, the question of whether the existing standard specification can be applied.

ICDM takes the lead in revising the evaluation standard TV field has bid farewell to pixel dispute

In response, the International Commission for Measurement and Metering (ICDM) made a clear answer. In fact, similar disputes have occurred within the ICDM with domestic ones. However, in the conference held in San Francisco on May 25th, the resolution resolution standard was adopted, which completely ended the controversy on the resolution of the 4K ultra high definition television. The revised 4K ultra-high-definition resolution standard clearly states that the pre-revised standard only considers the RGB method at the time of its development. Therefore, when this standard is used to measure different display technologies such as RGBW or subpixel arrangement, the method is comparatively blurry. However, through several technical improvements, the newly revised standard not only applies to the RGB mode, but also applies to all display methods such as RGBW or subpixel arrangement. When evaluating RGBW Ultra HDTVs based on the newly revised standards, the display results are 4K Ultra HD, and there is no other disagreement about the results.

After the ICDM conference, ICDM members and CEO Candice Elliott, who developed a subpixel arrangement with a pentatile structure, talked about the ICDM decision in the academic magazine High Resolution.

"The method of calculating the number of pixels when measuring resolution is no longer meaningful. The resolution is now determined by the number of distinguishable lines. This applies not only to the RGB mode, but also to the subpixel arrangement of pentales or RGBWs. All display technologies such as methods are applied uniformly.” At this point, the pixel struggle in the television field can finally come to an end. The unified and unambiguous 4K ultra high-definition television industry standard also has a great impetus for the development of the entire television industry. The ICDM decision passed many predictions to the entire industry and will also help all of the differentiated innovative display technologies to be fair to the stage.

RGBW has long played an advantage to help LG Display board the 4K ultra high-definition television panel throne

In fact, although China's TV industry still needs to test relevant standards again, RGBW TVs have long been recognized by the market and consumers. According to statistics, according to data from the market research agency IHS, LG Display’s 4K ultra-high-definition television panel shipments in the first quarter of this year increased by more than 149% compared to 1.48 million units in the same period last year, reaching 3.69 million units, with 35.9% The market share of the shipment once again reached the throne of the global 4K ultra-high-definition television panel, which is its second consecutive quarter of championship.

The reason, the industry believes that LG Display's RGBW technology is not just simply adding white sub-pixels, but the high-end technology that incorporates a new algorithm, this innovative algorithm can effectively improve the picture quality. Over the past 10 years, LG Display has completed numerous research and development projects and has completed the unique RGBW technology of LG Display. This has also been recognized by many TV manufacturers. Analysts believe that more and more TV manufacturers have begun to fully use RGBW technology products to build their high-end 4K ultra high-definition TV lineup, which not only promoted the popularity of 4K ultra high-definition TVs, but also boosted the high-end RGBW produced by LG Display. The increase in product share, which brings the biggest advantage, is that, compared with the situation in which the market share of other competing companies has changed from the basis of shipments to sales, the market share of LG Display has risen to 39.5%. It is more meaningful data.

In the future, with the development of technology, there will be even more diversified pixel structures or new display technologies. We should look at new technologies with the vision of innovation and development, so that the television industry can usher in a healthy development opportunity.

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