Aligning content rendering resolution and feature size with display capability in near‐eye display systems

Abstract

In order to create a satisfying experience with near‐eye displays, the content must be adapted to be legible on the display used. New displays are using subpixel arrangements that can limit the minimum resolvable feature size to something greater than with the conventional RGB stripe arrangement. We conducted an experiment to measure the minimum and preferred size of text in two virtual reality (VR) displays systems and find that the text size is display limited. We then measure several displays with different pixel arrangements to determine whether the subpixel arrangement could impact legibility. We propose several Fourier metrics that can be computed from the measured data to categorize the capability of the display and describe a framework for selecting the appropriate content from a set of discrete tiers.

Line-Based Modulation Transfer Function Measurement of Pixelated Displays

“…It is noteworthy that, when the signal is under-or oversampled in a digital imaging device to accommodate the signal data within the physical pixels of the device, the number of cycles per pixel unit based on the signal is employed. However, the discrete shift-invariance assumption for pixelated displays fails when the display has different line responses [22].…”

P‐1: Uni‐Color Column Line Pentile‐Type Pixel Arrangement Design for Low Driving Power Consumption AMOLED Displays

“…This enables a longer OLED lifetime, as well as higher fine metal mask (FMM) -related processing yield compared with the traditional RGB stripe pixel arrangement. Since the rendering quality of fine patterns/text can be degraded by the reduced number of red and blue sub-pixels [7], the Pentile pixel arrangement has been generally used for displays with pixel density 300 pixels per inch (ppi) or greater to keep the image quality impact negligible to viewers. Another quality of this pixel arrangement is that it allows sharing one sub-pixel column data line between red and blue sub-pixels.…”

31‐1: Distinguished Paper: Measurement and Categorization of Alternate Subpixel Layout Near‐Eye Display Systems

“…Expanded version of the paper published in Journal of Information Display [1] . The proliferation of mobile phone displays, which now have pixel densities exceeding 550 pixels per inch (ppi), has enabled a new category of consumer devices for Virtual reality (VR), Augmented Reality (AR), and Mixed Reality (XR).…”