LG Display successfully developed world’s first high-resolution LCD panel for mobile phones with pixel a density of 500ppi.
On August 21, LG Display unveiled its 5.5-inch Quad HD (QHD) LCD panel for mobile phones. QHD boasts a resolution four times higher than the current HD panels and a pixel density as high as 538ppi (based on a 5.5-inch panel).
The abbreviation ppi refers to the number of pixels included in an inch. This is the first time that an LCD with over 500ppi has been developed for a mobile phone.
“With the increasing popularity of phablets, which means a combination of phone and tablet, over five inches, display makers are speeding up their product development for 500ppi LCDs,” said LG Display personnel. “Next year, competition will intensify in the mobile phone market for resolutions higher than 500ppi," he added.
Because QHD display employs more pixels for its graphics, it has better color, contrast, and clarity. With QHD display, viewers can enjoy more lively graphics, especially for high-resolution photos and Blu-ray video. Also, it can display a larger portion of an image in one screen, and the text stays intact even if the image is zoomed.
LG Display’s new QHD LCD is 1.2 mm thick (excluding touch film), which is 12% thinner than current offerings. It is considered to be the slimmest LCD panel on the market.
This QHD LCD also achieves a brightness similar to that of a 5.2-inch full HD. Usually, as the pixel density increases, it gets more difficult for light to pass. LG Display achieved high levels of luminance by improving pixel structure and design through a low-temperature polysilicon (LTPS) backplane.
“As resolution increases, the viewers can experience more lively and more realistic pictures. Viewers can continue to see a vivid and clear picture even if the view is zoomed in,” said the Head of IT and Mobile Development Group at LG Display. “We will continue to lead the mobile phone display market as competition intensifies for products above 500ppi,” he added.
According to market research firm DisplaySearch, LTPS-based mobile phone displays are expected to grow from the current 600 million to approximately 770 million next year.