LG Display Sets New Global Standard with Color Perception Method

LG Display announced that its “color perception difference measurement method” has been adopted as the international standard technical Specification by the International Electrotechnical Commission (IEC). The company was the first in the industry to develop the measurement method.

The IEC is one of three major international standards organizations recognized by the World Trade Organization, and major global manufacturers measure product performance according to its standards.

In this context, differences in color perception refer to a phenomenon in which different viewers perceive the same color differently when it is shown on a display, resulting in color distortion. It is mainly caused by viewers’ visual characteristics, but the difference can be greater depending on the type of display. For example, the same white color can be perceived by different viewers to have either a blue or yellow tone.

The smaller the difference, the more accurately the average viewer can see colors as they were intended to be viewed by the content creator. This makes them more reliable for tasks in industries that prioritize high color accuracy, such as image reading in the medical industry or the video production industry’s need for multiple people to collaborate on the same scene.

Until now, the general opinion has been that the better a display’s color reproduction, the higher its color accuracy. But this does not reflect differences in viewers’color perception. The significance of the new standard is that it provides consumers with a way to select displays that express consistent and accurate colors.

LG Display’s measurement method quantifies and calculates the difference between the machine-measured color of seven standard colors and that seen by the human eye under conditions similar to natural light.

According to the new standard, LG Display’s large-sized OLED panels have high color accuracy, with a color perception difference of only about 10%, the lowest in the industry.
While some high-definition displays potentially cause differences in color perception by overemphasizing red, green, and blue (RGB) pixels, depending on the eye sensitivity of viewers, LG Display’s OLED panels alleviate this phenomenon by using with white organic light emitting elements to create a light spectrum that is close to natural light.

Meanwhile, research fellow Jang-jin Yoo from LG Display received the IEC 1906 Award on Oct.15 for his leadership in establishing the new color perception difference measurement method. The IEC grants the award annually to experts based on their outstanding achievements.

“We will continue to introduce products and technologies that provide differentiated customer value through LG Display’s OLED, which features industry-leading high brightness, infinite contrast ratio, and accurate color expression,” said Soo-young Yoon, CTO and EVP of LG Display.