The Screen Door Effect (SDE) is a common complaint amongst users of Virtual Reality (VR) headsets. SDE is characterized by a mesh-like artifact, much like looking through a screen door, on an image due to the space between pixels having a large enough angular size to be resolved through the viewing optics. Current generation VR displays exhibit SDE, distracting the user and breaking immersion. There are solutions currently in use in commercial VR headsets that reduce SDE in the form of dispersive elements placed in front of the display that effectively blur images from the display. However, these solutions only reduce the SDE, and functionally the blur is equivalent to reducing the quality of the optical stack. A method of image enhancement is to "shake" the display using piezo actuators, effectively shifting the pixels to enhance the image. This method can increase the apparent size of the pixels, reducing the gaps between pixels and leading to a reduction of SDE. In this paper, we will explore the limits of SDE reduction using this pixel shifting method with a square pixel architecture on a 9.4 μm pixel pitch RGBW display, and how that generalizes to other display architectures. We will find how different stimuli change with screen door reduction, analyzing solid color, text, and natural scenes. We will also explore what parameters to use in order to minimize SDE, adding to the other benefits of this solution and generalizing the parameters to all displays.
The history of semiconductor quantum optics group in the College of Optical Sciences will be discussed. The work from planar microcavities including VCSELs, photonic crystal cavities leading to the observation of strong-coupling between an L3 cavity and a quantum dot, and now metallic cavities coupled to quantum wells and quantum dots will be described.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.