Samsung's next-gen phablet, the Galaxy Note 5, has been tipped to receive a 5.9in Ultra HD (4K resolution) Super AMOLED display with 700+ppi pixel density as the company is reportedly manufacturing Ultra HD display panels with its ETA set for next August, according to a recently leaked Samsung mobile display roadmap for 2015.

Given the leaked display roadmap schedule for 2015, the UltraHD (2160 x 3840 pixels) AMOLED display panel will debut with the Galaxy Note 5, whose announcement is expected at the IFA expo in September 2015.

Samsung has repeatedly thrown the spotlight on the UHD display technology under work ever since the Analyst Days presentation slides surfaced in 2013 and carried forward the same ideas to its recent Semiconductor and Display Technology Roadmap workshop held in January.

At the time, Samsung presenters hinted at the UHD smartphone displays in the pipeline while also mentioning the term "diamond pixel" to denote a non-standard pixel matrix arrangement that is closer to PenTile rather than the standard RGB stripe matrix, according to Phone Arena, quoting an uncorroborated tip from an unidentified source.

With LG recently expressing its interest in unleashing 600ppi and 700ppi based smartphone display panels, the pixel battle in the phablet market has just got bigger and more exciting with Sharp rumoured to be working on a 4K mobile display for its 5.5in smartphones to 6in phablets.

Apart from the display specifications, the Galaxy Note 5 is expected to feature the 64-bit octa-core Snapdragon 810 processor and a high resolution camera with support for optical image stabilisation, along the lines of Galaxy Note Edge.