Screenless displays provide images without the need for a physical screen. They work using optical projection technologies like holography or retinal projection. Holography projects three-dimensional images, while retinal projection beams light directly onto the retina. Synaptic interfaces send images straight to an electrode implanted in the brain. Early examples include Google Glass and Sixth Sense technology. Screenless displays offer advantages over traditional screens like wider viewing angles and more accurate color representation. They may improve accessibility for the visually impaired and create new career opportunities.

1. SCREENLESS
DISPLAY
our imaginations dressed into reality
Presented By,
B.Jagadeesh

2. WHAT IS SCREENLESS
DISPLAY?

3. ORIGIN OF SCREENLESS
DISPLAY
• Reto Meier predicts
• The most profound effect will come from the
development of the synaptic interface
technology.

4. FIRST SCREEN-LESS DISPLAY
• The first screen-less display that needs mentioning is Google Glass.

5. THE SIXTHSENSE TECHNOLOGY
•
• It is a wearable gestural interface that augments the physical world.
In this technology user is able to interact with a three dimensional image
projected.

6. TECHNOLOGY USED IN SCREENLESS DISPLAY
• Interactive Projection and Visual Display System
The biggest impact in screenless technology has been seen in the use of optical
technology. Optical technology enables personal screenless displays by
projecting images and data from computers, DVD players, or VCRs into the
viewer's eye, displaying them in the visual field of the viewer.
For example, Microvision Inc. has created helmet mounted displays in which an
Army tank commander can view the surrounding area from topside while still
viewing a translucent map that floats a couple of feet away.

7. • 3D Display Projection Technology

8. TYPES OF DISPLAYS
Screenless computing systems can be divided into three groups:
• Visual Image
• Retinal Projection
• Synaptic Interface/Brain Computer Interface

9. VISUAL IMAGE
• Any screenless image that the eye can perceive. A hologram is the most common
example of visual image screenless display
• Holography— is a technique that allows the light scattered from an object to be
recorded and later reconstructed so that it appears as if the object is in the same
position relative to the recording medium as it was when recorded. The image
changes as the position and orientation of the viewing system changes in exactly the
same way as if the object were still present, thus making the recorded image
(hologram) appears three dimensional.

10. Projection Window
•
•
•
It having two terminal which project the source.
Air works as interface.
Resolution is very high.

11. ▪ The images projected threw air molecules.

12. RETINAL DISPLAY
▪ Another screenless display type is a retinal display. With a retinal display light is not
reflected off an immediate object, like in a visual image, but it is projected directly onto
the retina. This can be handy in that one is not limited by physical screen size Because
there is no immediate object to be viewed, retinal display can be used to keep things
such as financial information safe from snooping eyes. The image can take up the
entire field of vision. We’ve seen the potential of retinal displays in movies like
Terminator.

13. ❑ Light projected directly to retina
❑ Prevents snooping
❑ Not limited by physical size
❑ More secure to access data from outsiders.
Retinal Display having:

14. HOW VISION WORKS
Reflected Light
Object

15. RETINAL PROJECTION
Projected Image
Projector
Image
▪

16. SYNAPTIC INTERFACE
▪ In Synaptic Interface images are sent to an electrode implanted in the brain.
Synaptic Interface having:-
• Brain Computer Interface or BCI
• cochlear implant for the eyes
• No light projection
• Image sent straight to brain

17. Camera sends images to electrode implant

18. Advantages and disadvantages of the technology
• Low power requirements
• Higher resolution images
• Greater portability
• Wider angle of view
• More accurate color
• Greater brightness and better contrast
• Ability to present 3D images
• Ability to present far-point images
• Lower costs

19. AFFECTS OF SCREENLESS DISPLAY
• Screenless display technology is likely to affect:-
• Lighting and projection technologies
• Software development/design
• Lifestyles of the visually impaired
• Career opportunities for the visually impaired

20. THANK YOU