Notice the rabbit on the grass. What color does it appear to you? Some people might view it as a white with a cool tone, while others will see it as a warm-toned white. This phenomenon of perceiving the same color differently depends on viewers’ individual eye sensitivity.
Amid the recent rise of high-definition displays, research has examined this color perception difference between individual viewers. Against this backdrop, LG Display is the first company to develop a “color perception difference measurement method” – and it has been officially adopted as the global standard technical specification, by the International Electrotechnical Commission (IEC). Let’s take a closer look at what that means and why it matters to display users.
Color perception varies from person to person? The importance of consistency and accuracy!
Differences in color perception are mainly caused by viewers’ visual characteristics, but the difference can be greater depending on the type of display. Therefore, minimizing the difference in displays has become an important topic in fields such as video content creation where the producer’s intention is important, and medical fields in which diseases are analyzed through image or video interpretation.
LG Display has been working on standardization through discussions and consensus building with experts via the IEC since 2020. The IEC is one of the world’s top three international standards organizations recognized by the World Trade Organization, and major global manufacturers measure product performance according to its standards. Previous standards had been based on the evaluation that the better the color reproduction of a display, the higher the color accuracy. But this did not reflect differences in color perception between viewers. The significance of the new standard is that it provides consumers with a way to select displays that express consistent and accurate colors.
The reason why LG Display’s large-sized OLED panels have little color perception difference
While announcing that its measurement method had been established as the international standard, LG Display also confirmed that OLED panels feature less color perception difference than other technologies. It’s measurement method calculates and quantifies the difference in color perception between a machine and the human eye, using seven standard colors under conditions similar to natural light. According to the new standard, LG Display’s large-sized OLED panels have a color perception difference of only about 10%, while other kinds of displays have a difference of up to 30%. This is because LG Display’s large-sized OLED panels use white sub-pixels whose wavelengths are close to natural light in addition to red, green, and blue (RGB) pixels, thus minimizing-differences in color perception that can happen when RGB pixels are overemphasized.
Last May, LG Display drew attention from the academic world by presenting a research paper on its color perception difference measurement method at SID Display Week 2024, the leading global display conference. The company also plans to present joint research on color perception difference with LG Electronics and Disney Studio LAB in Japan this December at the world’s most prestigious computer graphics technology conference, SIGGRAPH ASIA 2024.
In recognition of these achievements, LG Display Research Fellow Jang-jin Yoo, who led the establishment of the standard for the color perception difference measurement method, received the IEC 1906 Award on Oct. 15. The IEC grants the award annually to standards contributors based on their outstanding achievements. – “I feel very honored to be recognized for presenting a new standard and development direction for truly high-definition displays, and I am glad that a standard has been established that can once again prove the excellence of our large-sized OLED panels.”
LG Display presents a new direction in selecting high-definition displays
So, LG Display is showing the way for the development of high-definition displays and once again has proved its technological philosophy that “Natural Reality,” as you would experience in real life, is the pinnacle of display quality. The company is presenting differentiated products that convey the original creator’s intent through consistent and accurate color expression. LG Display’s unrivaled technological leadership will continue!
