LG Chem to release High CRI OLED panels
LG Chem’s OLED Light Division has announced that it has been producing all of its panels at CRI levels over 90 as of April this year.
CRI (Color Rendering Index) is a quantitative measure relative to natural light, determining a light source’s ability to reproduce the colors of the objects on which the light shines. Naturally, the index has been considered as a crucial factor in determining the quality of a light source.
In the case of OLEDs, they have a spectral distribution very close to that of the sun, meaning artificial modifications to reach high CRI can be kept to a minimum, further preserving the ‘natural’ quality of the light itself.
LG Chem’s mass production of high CRI OLED panels is even a more significant achievement since the company happens to be the leading manufacturer of OLED panels, especially in terms of panel performance such as efficiency and lifetime. Generally, efficiency and CRI are trade-off factors. Despite this obstacle, LG Chem has managed to maintain its 60lm/W efficiency levels even at CRI levels of over 90.
Another notable point is that LG Chem’s OLED panels have color temperatures between 3,000 and 4,000K. Most of the conventional high CRI general light sources that are used today are usually at color temperatures below 3,000K.
LG Chem is also keeping its lifetime levels at 20,000 hours.
High CRI light sources are often sought for areas that require the color and tone of the objects to be represented most faithfully.
Such areas include various shops, museums, art galleries, department stores, studios, and even restaurants. Considering that some of these areas are also sensitive to heat, high CRI OLEDs can be a very attractive option for these areas. Moreover, with LG Chem’s OLED panels already at performance levels ‘good enough’ to be applied to general lighting applications, the company’s production of high CRI OLED panels can finally make this a viable option.