Screenless display is a technology that projects images and information without using a physical screen. It works by creating optical illusions to make images appear suspended in mid-air. Several types of screenless displays exist, including holographic, retinal, and virtual retinal displays. While screenless displays offer advantages like higher resolution and portability, challenges remain around precise calibration and high costs. Future developments may integrate the technology into more devices to enhance experiences.

1. SCREENLESS DISPLAY
NAME : AYUSHI MISHRA (208728)
PARTH (208708)
KRISHNA KUMAR (208712)
CLASS : B-TECH 3RD YEAR 6TH SEMESTER
BRANCH : COMPUTER SCIENCE
SUBMITTED TO : DR. RASHMI

2. CONTENT :
1- INTRODUCTION OF SCREENLESS DISPLAY
2- ORIGIN OF SCREENLESS DISPLAY
3- TYPES OF SCREENLESS DISPLAY
4- FIRST SCREEN-LESS DISPLAY
5- THE SIXTHSENSE TECHNOLOGY
6- TECHNOLOGY USED IN SCREENLESS DISPLAY
7- APPLICATIONS OF SCREENLESS DISPLAY
8- ADVANTAGES AND DISADVANTAGES OF THE TECHNOLOGY
9- CHALLENGES AND LIMITATIONS OF SCREENLESS DISPLAY
10- FUTURE DEVELOPMENTS IN SCREENLESS DISPLAY
11- CONCLUSION

3. INTRODUCTION OF SCREENLESS DISPLAY
Screenless display is a technology that enables the projection of images and
information without the use of physical
screen. It works by creating an optical
illusion that appears to the viewer as
though the image is floating in middle.
This technology has been developed for
decades but recent advancements have made it more practical and
accessible for everyday use. screenless displays have the potential to
revolutionize the way we interact with digital information and enhance our
immersible experiences.

4. ORIGIN OF SCREENLESS DISPLAY
• Reto Meier predicts that 10 years from now we will be able to get
transparent LCD patches that will adhere to our eyeglasses and 20 years
from now we’ll have contact lenses that project images directly onto our
retinas and that we will be able to interact with computers through mind
control.
• The most profound effect will come from the development of the
synaptic interface technology. This technology will allow people who are
visually impaired to see just as the hearing impaired are able to hear
through cochlear implants.

5. TYPES OF SCREENLESS DISPLAY :
• There are several types of screenless display technologies, including
holographic displays, retinal displays, and virtual retinal displays.
Holographic displays use lasers to create 3D images that appear to float in mid-
air,
while retinal displays project images directly on to the retina of the eye.
A virtual retinal display (VRD), also known as a Retinal scan display (RSD), is a
new display technology that draws a raster display (like a television) directly onto
the retina of the eye. The operator sees what appears to be a conservative show
variable in space in front of them

6. RETINAL DISPLAY
Virtual retinal display:
• Holography:

7. FIRST SCREEN-LESS DISPLAY :
The first screen-less display that needs mentioning is Google Glass. Google Glass sits
on the face
like a pair of glasses, and on
one eye it has a block of glass
that allows you to see augmented
reality. Images can be displayed right
in front of your eye, as well as text
and information about objects and places that are in front of you. This technology is only
in its early stages, but definitely shows that screen-less displays will become a natural
form of media consumption in the future.

8. THE SIXTHSENSE TECHNOLOGY :
• It is a wearable gestural interface that augments the physical world
around us with digital information and lets us use natural hand gestures to
interact with that information.
• In this technology user is able to interact with a three dimensional image
projected into thin air. Imagine your desktop floating in the space before
your eyes waiting for your interaction!

9. 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.

10. APPLICATIONS OF SCREENLESS DISPLAY :
Screenless displays have a wide range of
potential applications, from entertainment and
gaming to health care and education. They could
be used to create immersive virtual environments
for training simulations, or to display important
medical information directly in a surgeons's field of
vision during a procedure. In the entertainment
industry, screenless displays could be used to
create new forms of interactive media and gaming
experiences. They could also be used in
advertising and marketing to create attention
grabbing displays that stand out from
traditional screens.

11. ADVANTAGES OF THE SCREENLESS DISPLAY
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.

12. CHALLENGES AND LIMITATIONS OF SCREENLESS
DISPLAY:
While screen less displays offer many exciting possibilities, there are still
several challenges and limitations that must be addressed. One major
challenge is the need for precise calibration and alignment, as even small errors
can result in distorted or blurry images. Another limitation is the current high
cost of the technology, which makes it difficult for widespread adoption.
Additionally, some people may experience discomfort or eye strain when
viewing screenless display for extended periods of time.

13. FUTURE DEVELOPMENTS IN SCREENLESS
DISPLAY:
Despite the challenges, researchers and
engineers are continuing to push the
boundaries of screenless display
technology. New developments in
material science, optics and computing
are helping to make screenless displays
more practical and affordable. In the
future we may see screenless displays
integrated into everyday devices such as
smartphones and smart watches, or used
in new and innovative ways to enhance or
daily lives and experiences.

14. CONCLUSION:
Screenless displays fascinating technology
with many potential applications and benefits.
While there are still challenges and limitations
to overcome, the continue development and
innovation in the field is show to bring about
exciting new possibilities in the years to come.
As we continue to explore the potential of a
screenless display, we may discover new and
expected ways to enhance our interactions
with digital information and the
world around us.