This presentation discusses screenless displays and devices. It defines screenless displays as displays that can show and transmit information without a screen. The presentation outlines the main types of screenless displays: visual image displays, retinal displays, and synaptic interfaces. It describes the technologies used for each type, such as holograms for visual images and virtual retinal displays that project directly onto the retina. The presentation discusses applications in education, healthcare, security, and mobile technology. It also lists some examples of screenless devices like Google Glass and advantages like lower power and higher resolution over traditional screens.

1. A PRESENTATION ON
BY:
BHUMIKA VARSHNEY
1208210043(CS-3RD YR)
SCREENLESS DISPLAYS AND DEVICES

2. OUTLINE:
• INTRODUCTION
• TYPES
• TECHNOLOGY USED
• APPLICATIONS
• DEVICES
• ADVANTAGES/LIMITATIONS
• REFERENCES

3. INTRODUCTION
• Screenless displays,defined as a display which
helps to display and even transmit any information
without the aid of screen.
• It is an interactive projection technology
developed to solve the problems of device
miniaturization.
• This technology has the main aim of
displaying(or)transmitting the information
without any help of the screen(or)the projector.

4. SCREENLESS
DISPLAYS
VISUAL
IMAGE
RETINAL
DISPLAY
SYNAPTIC
INTERFACE
TYPES:

5. TECHNOLOGY USED:
1.VISUAL IMAGE
 Visual image is a type of screenless
display,which recognizes any type of image or
thing with the help of human eye.
 This display can supply accurate depth cues
and high-quality images and videos that can be
viewed by the human eyes.

6. VISUAL IMAGE (contd..)
The main example of visual image is holograms:

7. TECHNOLOGY USED:
2. RETINAL DISPLAY
 Retinal display are those class of displays in
which the image is projected directly onto the
human retina.
 Retinal direct system promises of extreme
privacy when computing work is done in
public places.
 VIRTUAL RETINAL DISPLAY is the technology
used.

8. BLOCK DIAGRAM OF VIRTUAL
RETINAL DISPLAY

9. PROJECTION IN VIRTUAL
RETINAL DISPLAY:
Applying VRD
Technology

10. TECHNOLOGY USED:
3. SYNAPTIC INTERFACE
 In synaptic interface display the image is
projected directly into human brain by
bypassing the human eyes.
 Success has been achieved in sampling
usable video signals from the biological
eyes of horseshoe-crab. The video signals
from electronic cameras into the creatures’
brain are transmitted using BRAIN
COMPUTER INTERFACE

11. BRAIN COMPUTER INTERFACE

12. APPLICATIONS:
 Education
 Health care Training
 Improves Security
 Applications in Mobile Technology
 Hologram projection
 Screenless TV’s and Laptops

14. DISPLAY DEVICES:
 Google glass
 Oculus Rift
 Eye tap
 Bionic lenses
 Head up displays
 Sony headman by “sony”

16. ADVANTAGES:
 Low power requirements
 Higher resolution
 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

17. LIMITATIONS:
 The SYNAPTIC INTERFACE display is still under
progress.
 Limited availability
 Many problems related to the eye sight can
arise.

19. ANY
QUERIES???