With the SID 2022 event (Society for Information Display) going on this week in San Jose California from 10 – 12 May there is a selection of news relating to OLED technology that is worth highlighting. We are of course most interested in anything that could be relevant to the desktop monitor market, either through smaller screen sizes, new advancements in technology or cross-over products of a moderate size. It’s still interesting to understand the developments going on in the OLED TV space as well as this often leads to additional monitor innovation later on. By introducing state-of-the-art OLED products ranging from its next-generation OLED.EX to Bendable and Foldable OLED panels, LG Display (one of the key OLED technology producers) will highlight the evolution and versatility of OLED technology, aiming to solidify its OLED leadership.
42″ Bendable OLED Gaming Panel
Among the revolutionary products to be showcased is the company’s 42-inch Bendable OLED Gaming display which boasts a curvature range of up to 1,000R, or a radius of 1,000mm. This allows the screen to bend to the users requirements and taste, and straighten so users can optimize their screen to the game they are playing or the show they are watching to enjoy the most immersive experience. LG Display is developing gaming-exclusive OLED panels with unique and distinctive form factors which shift between curved and flat states, and plans to collaborate with major global gaming brands to release the most innovative gaming displays in the future. This kind of panel could be an interesting option in the cross-over TV/monitor market and we look forward to seeing more from this at a later date.
“Bendable OLED display will be one of the most fun gaming devices that gamers will find in the market,” remarked Kim. “We will continue to expand our gaming OLED lineup to offer new and exciting gaming experiences for our customers.”
OLED studies show popularity of this technology for gamers
LG Display unveiled its original research results on the ergonomic requirements of gaming displays, providing further evidence that OLED is the optimal gaming display. Keep in mind this is all from their own study, so there’s a marketing spin on this of course.
For the study, LG Display tested a handful of gamers to discover which display conditions provide the best gaming experiences. The players tested games of different genres on a wide spectrum of displays, from OLED and LCDs to flat and curved form factors. The study results show that a gamer’s reaction time can be improved by using OLED, while a display’s curvature provides a more immersive gaming experience.
Reaction time is the time it takes for the user to recognize the input signal on the screen and then react to it by clicking their mouse or keyboard. Because a shorter reaction time increases the player’s chances of winning, it is widely considered one of the most important factors when choosing a display. Study results reveal that an OLED’s average reaction time was 50 milliseconds (ms) faster than an LCD. “Considering the gamer uses a special mouse or keyboard for gaming which usually provides speed advantage of 10 to 20ms, 50ms is critical in determining a game’s outcome,” said Dr. Jang Jin Yoo, Research Fellow and the head researcher of the study at LG Display.
Curvature, which refers to the display’s degree of curve, is another determinant factor of a gaming display’s performance. The research study shows that 800R was selected as the display curvature to deliver the most immersive playing experience, although less curved screens performed slightly better for specific sports games. The curvature of today’s gaming monitor screen ranges from 1800R to 4000R, while the study found out that the optimal viewing distance from the monitor display and the person for gaming is around 800mm. This suggests that gamers are missing out on the optimal curvature, and therefore the ultimate gaming experience, too. This could well lead to future development of even tighter curves than the 1000R you sometimes see today.
Improving brightness for future OLED panels with MLA
Peak brightness has been one of the weaker areas of OLED technology compared with displays with a traditional backlight. LG Display is also developing OLED TV panels that utilize a so-called “Meta-lit Lens Array” (MLA) to increase the light output and improve peak brightness. They unveiled their first prototype display at SID 2022 this week which was 77″ in size and had an 8K resolution. It was part of their latest “OLED.EX” panel generation but through the addition of MLA technology they have been able to increase the peak brightness up to 2000 nits. When MLA technology is applied, OLED luminous efficiency is increased by more than 20% compared to before. The viewing angle is also widened by the light scattering effect.
To deposit the MLA layer, LG Display uses a deposition and patterning process that creates the convex lens shapes directly on the OLED panel. LG Display plans to apply MLA technology to premium large OLED TV panel products in the future.
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