I occasionally do talks on future TV and I generally ignore current companies and their recent developments because people can read about them anywhere. If it is already out there, it isn’t the future. Companies make announcements of technologies they expect to bring in soon, which is the future, but they don’t tend to announce things until they’re almost ready for market so tracking those is no use for long term futurology.
Thanks to Pauline Rigby on Twitter, I saw the following article about Dolby’s new High Dynamic Range TV:
High dynamic range allows light levels to be reproduced across a high dynamic range. I love tech, terminology is so damned intuitive. So hopefully we will see the darkest blacks and the brightest lights.
It looks a good idea! But it won’t be their last development. We hear that the best way to predict the future is to invent it, so here’s my idea: textured pixels.
As they say, there is more to vision than just resolution. There is more to vision than just light too, even though our eyes can only make images from incoming photons and human eyes can’t even differentiate their polarisation. Eyes are not just photon detectors, they also do some image pre-processing, and the brain does a great deal more processing, using all sorts of clues from the image context.
Today’s TV displays mostly use red, blue and green LCD pixels back-lit by LEDs, fluorescent tubes or other lighting. Some newer ones use LEDs as the actual pixels, demonstrating just how stupid it was to call LCD TVs with LED back-lighting LED TVs. Each pixel that results is a small light source that can vary in brightness. Even with the new HDR that will still be the case.
Having got HDR, I suggest that textured pixels should be the next innovation. Texture is a hugely important context for vision. Micromechanical devices are becoming commonplace, and some proteins are moving into nano-motor technology territory. It would be possible to change the direction of a small plate that makes up the area of the pixel. At smaller scales, ridges could be created on the pixel, or peaks and troughs. Even reversible chemical changes could be made. Technology can go right down to nanoscale, far below the ability of the eye to perceive it, so matching the eye’s capabilities to discern texture should be feasible in the near future. If a region of the display has a physically different texture than other areas, that is an extra level of reality that they eye can perceive. It could appear glossy or matt, rough or smooth, warm or cold. Linking pixels together across an area, it could far better convey movement than jerky video frames. Sure you can emulate texture to some degree using just light, but it loses the natural subtlety.
So HDR good, Textured HDR better.