Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back

Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back Author Topic: Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back  (Read 314 times)

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The Display Summit, to be held on 4/5October in Sterling Virginia, USA, delves into resolution. In particular for  for Projection-based Training and Simulation, as it is organsed at the Head Quarters of Rockwell Collings a major simulation and millitary equipment supplier. However LED walls applicability is a seperate topic with presentations by Nanolumens and SiliconCore.

What is (spatial) resolution and what are the merits or demerits of native resolution over image-shifting projection, either e-shift or XPR, LCoS or DLP. Ik a key topic at the Summit. As we are seeing a return of native 8K D-ILA projectors from JVC, JVC abandonned native 8K for e-shift versions using native 4K panels around the turn of the decade. DLP projector vendors have only just implemented shifting technologies. To offer lower pricepoints than native 4K DMD based projectors.

Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back

Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back
Rod Sterling_ JVC

Chief Engineer at JVC's Engineering Group Rod Sterling will discuss JVC's native 8K resolution projectors and the company's image-shifting 8K projectors, that are built around a native 4K resolution chip set.  Rod will discuss the trade-offs in image quality between the two along with issues associated with the distribution of such high resolution images in real world applications..

According to JVC the larger size of the native 8K D-ILA chip makes it hard to get as flat an surface as the native 4K and native HD chips.

Barco's Svein Arne Hansen will also discuss image-shifting projection, but from the view of a DLP supplier/developer. Focussing on the recent DLP solutions now in the market.

Display Summit delves into resolution, 8K image-shift or native, JVC 8K is back
Svein Arne Hansen, Barco   

Such image shifting techniques call into question the very definition of resolution.  Should it be defined by the native elements on the imagers or by the ability to deliver light points on the screen with the full range of luminance and color values?  Many will argue the latter is the more important definition as this is what the users sees.

Hansen and Sterling are also to talk about the trade-offs between increasing spatial resolution and and temporal resolution, by increasing frame rates.  Is a 3840x2160 resolution image at 60Hz better than a 2560 x1600 resolution image at 120Hz?  The answer may depend on the application.  For uses where there is enough movement that the image gets "soft" then going to the higher frame rate will be more beneficial, but at what impact to the rest of the solution?  This is also likely to be a topic of some discussion at the event.

Image fidelity is also driven by contrast, color, and artifacts.  While HDR with an increased color pallet and a wider range of luminance values is a hot topic in consumer and some professional markets, it seems less interesting a topic in the world of training and simulation.  Certainly for low light level applications, color and contrast are not that important, but one would think daytime applications would benefit from HDR.  Experts at the event will weigh in on this topic as well.

As any multi-projector installation needs to blend the images into one seamless image. Geoff Blackham of GBVi will review the mainstream projection technologies and their respective pros & cons, particularly with regard to scene dynamic range and blend implications. Each solution has trade-offs in terms of image performance, cost, flexibility, longevity and more. One can use electronic blending solutions, which are generally acceptable for brighter scenes.  Alternative, optical masks can be designed for the overlapped areas that are the preferred method for dark scenes as the overlap light levels with electronic blending are too high. Geoff will offer a detailed review of optical blending options, presenting their operating theories and application scope.

SiliconCore and Nanolumens are both developing LED devices and LED video walls with performance suitable for cinemas.  Can these activities be leveraged for simulation applications?  Can they meet the performance, cost and durability requirements of this market? And, what is the market potential for these LED video walls? The latter being the issue of a presentation by Yole Research.

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