Www Mepits Com Project 174 Techno Innovations Screenless Dis

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Home / Projects / Miscellaneous / Techno innovations / Screenless Display

11 July 2014 Techno innovations Comments

(7)Screenless Display

Mepits

Technological advancement nowadays is moving to a faster pace. The

latest display technology -Touch Screen Display, commonly used in our

smart phones and tablet computers will move to a mere history in the

coming future. Screenless Display, the emerging new display

technology will replace this touch screen environment and will solve

the problems at higher level, making life more comfortable. The main

aim of the Screenless Display is to display or transmit the information

without the help of a screen or the projector. Using this display, we can

directly project images onto the human retina, open space and even

to the human brain. It avoids the need of high weight hardware and it

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will provide privacy at a high rate.

This field came into progress during the year 2013 by the arrival of

products like holographic videos, virtual reality headsets, retinal

displays, mobiles for elderly, eye tap etc. At present, we can say that

only part of the Screenless Display Technology is brought up whichmeans that more advancement is necessary for a boost in the

technology. Lack of space is one of major problem faced by screen

displays. This problem will surely provide a pathway for screenless

display.

What is Screenless Display?

Screenless Display was an excellent thought that came into many

experts inorder to solve the major problems related to the device

miniaturization. Lower space screen displays have made the need of

screenless displays more than ever. Screenless, as the word suggests

clearly means ‘no screen’. So, Screenless Displays can be defined as adisplay which helps to display and even transmit any information

without the aid of screens.

When will screenless displays be fully available? This question is not yet

answerable since many developments are under stage only. Since the

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displays are capable of projecting 3D images to the space, many

disadvantages of 2D and screen based displays can be avoided.

Displaying feature of it can be thought of as a projector without a

movie. Using this excellent technology, we can even make our smart

phone a TV. The countdown for the first screenless display has started

now currently from the month of May 2014 onwards. Screenless

Display currently uses Interactive Projection technology with visual

display and 3D Projection Technology.

Tags

Display

Screenless display

google glass

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Figure1: Screenless Display

Screenless Display Types:

Screenless Display can be grouped into three main categories. Theyinclude Visual Image, Retinal Display and Synaptic Interface.

Visual Image Screenless Display:

Visual Image is a type of screenless display were the eye or the retina

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can recognize any screenless image. Holographic display, Virtual

Reality Goggles and Heads Up Display are some present visual image

screenless display examples. The display works on the principle that;

light gets reflected by the intermediate object before reaching the

retina. The intermediate object can be holograms, windows, or even

LCDs.

Holographic messages that became popular through the ‘Star War

Film’ are now becoming a truthful reality. Holographic Displays allow

the display of three dimensional images by using simple components

like Helium – Neon Laser, a Lens, an object, mirror and a holographic

film. The laser beam used will initially create a plasma environment.When the laser and object beams coincides, a 3D image will be

projected. The projected image will appear to be floating in air.

Presently, MIT’s Media Lab reported a holographic color video display

(inexpensive) with the resolution of TV. Latest fiction movies the ‘Iron

Man’ and ‘Avengers’ have shown this technology in more advanced

form. This advancement can be expected in the coming future.



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Figure 2: Holographic images

Virtual Reality Goggles (VRG) is an eyewear display device. Wearer

can view and interact with a series of computer generated images.



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Consist display screens in front of face. Images can be projected with

sound and video, allowing it more popular for entertainment

applications. Presence of polarized lenses is the major feature of VRG.

These lenses will show two images, one per each eye and the brain

combines them to form a three dimensional image. They show an

illusion of depth. Many of these goggles are accompanied by headtracking systems connected to a computer, thereby adjusting images

seen by the wearer as they move around.

‘World of Warcraft’, ‘Quake2’ are some popular games that can be

played using VRG. The famous ‘Oculus Rift ‘and the recent ‘Google’s

Cardboard Virtual Reality Goggles’ is an evidence that VRG is on itsway. Now many DIY VRG are coming out since it requires only

components like a smartphone, two lenses, a rigid paper or cardboard

and some tape. ‘Sony Headman’ a virtual reality headset by ‘Sony ‘is

also gaining popularity now.



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Figure 3: Oculus Rift



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image such that we can see the field of view and the projected image at

the same time. Computer is an interface between projector unit and

data to be displayed.

Recent ‘Portable Garmin’s HUD’ for automobiles projects navigation

information onto the windshield. The device is placed on thedashboard of the car which works wirelessly with a Bluetooth enabled

smartphone. Estimated arrival time, lane assist, speed, traffic and

safety camera alerts are the informations displayed. ‘Russian Hudway

App’ utilizes just a smartphone (no projector) to act as HUD. It keeps

track of speed, location, coming curves and hills in road, and distance

by using the device accelerometer and GPS. Many aircrafts (e.g.:Embraer 190, PZL TS-11 Iskra), air buses, cars (e.g.: BMW E60, 2013

Toyota Prius) are using this device.



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Figure 5: HUD in aircrafts



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Figure 6: HUD in car

Visual Image Screenless Displays has the advantage of creating and

even manipulating the images upto any size. Manipulation is possiblein the Image Mode; also multiple bitmaps can be composited together

in the Object Mode in this category of displays. In Visual Screenless

Displays, EYE Files are created. EYE Files generally include all the

images that are loaded. The ‘Export Project Command’ in ‘File’ will

create the EYE File. These files will provide a provision to save any



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unsaved visual image as bitmaps into it. Catalogs of images can be

created in an EYE File. ‘Export Editor Command’ in ‘File’ will allow to

browse the desired image files on disk to place it under a common

catalog. Thus visual catalog files can also be created in the EYE File.

Visual Image Screenless Displays with different advantages and better

advancements will surely provide a roadway for screenless displays.

Retinal Display:

Virtual Retinal Display (VRD), a screenless display technology allowing

the image directly to be projected on to the retina. In VRD, no real

image is produced. It just beams the image to our eye balls directly.The user will feel that the display is floating in the space in front of him.

Retinal Scan Display and Retinal Projector are some common popular

names of it. Compared to other displays, it uses narrow band color,

coherent light and allows short transient light emission. The VRD was

initially invented by Kazuo Yoshinaka in 1986.Later work at the Human

Interface Technology Lab at University of Washington had brought outa VRD system in 1991.Now VRD is under more research.



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exit pupil of VRD is achieved, a spot like beam will be focused to the

eye. The spot focused through the eye will draw an image on the

retina. Drive electronics will allow synchronization of scanner,

modulator and coming video signal. Through synchronization a stable

image will be formed. Its said that more compact VRDs will be available

with the MEMS technology.

Figure 8: How vision works



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Figure 9: Retinal Projection

In January 2014, Glyph Company had raised a sum via KickStarter with

the aim of bringing personal gaming and cinema device using retinal

display. Eye Tap and Bionic Contact Lenses are some present dayexamples for retinal displays. Eye Tap, is a display device that can act

as a camera and a monitor. It can be worn on the eye. Generally a

beam splitter is the major component of the eye tap. Now the eye taps

are replaced by the smart Google Glasses.

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Figure 10 : Google glass

Bionic lenses use components like electric circuit with red light-

emitting diodes, a sensor and a micro size silicon chip for visual

display. Controlling the display intensity and all functions by voice is

the major feature. Infrared rays help transfer of information within the

lenses. Many research and developments are taking place with these

lenses

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lenses.

Synaptic Interface:

Synaptic Interfaces does not use light at all and the visual image is

directly given to the brain. The technology is in the advancementmode and it is now been tested on humans too. This is useful for

security system, effective communication, education, business,

planning and broadcast. Success was achieved in sampling video

signals from eyes of horseshoe crab through their nerves. Also, the

video signals from electronic cameras into the creatures' brains were

also sent successfully.



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Figure11: BRAIN Computer Interface

on Humans

Brain-computer Interfaces allows direct communication between the

brain and the external device. Brain Machine Interface, Mind

Machine Interface Direct Neural Interface and Synthetic Telepathy



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Machine Interface, Direct Neural Interface and Synthetic Telepathy

Interface are some common names by which they are known. Can you

guys imagine a computer been controlled using our mind? Then this

imagination is coming to a reality through synaptic interfaces. Recently

Duke University reported that by connecting the brains of two mice

over the Internet, the mices were able to cooperate and perform tasks.In 2013 Harvard University reported that they established a link

between the brains of rat and human.

In 2013, MIT reported that they have implanted false memory into the

brain of a mouse. Now much research is taking place related to this.

The advancement in the technology will make the future world in sucha condition that even a blind person can drive vehicles.

Screenless Display Advantages & Disadvantages

The products belonging to this emerging technology bring out many

advantages compared to the existing products with the oldtechnology. While taking the images into consideration, the present

screenless displays have the ability to present 3D images, far point

images and an image with higher resolution one. Good brightness and

contrast and large angle of view are the other essential advantages.

With the increasing use of the screenless products, we can expect a

decrease in the cost also in the coming future Lower power



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decrease in the cost also in the coming future. Lower power

consumption, light weight, and providing better privacy are some

essential advantages achieved in all the smart screenless display

products. The screenless displays will boost up the field of

entertainment at a great stage.

Disadvantages faced now are basically the higher cost and limited

availability of the screenless display products. Most of the technologies

required for the outward of screenless display are in development

stage only. Many problems related to eye sight can arise since the

products require close interaction with the eye.

Futurescope of Screenless Display

Screenless Displays is on the way of progress. Technological experts

are taking great efforts in researching the topic day by day, so we all

can expect a great revolution in the field of displays. Many IT

companies and the best labs in the world are trying to bring out many

products. The coming era will surely be a virtual world more than our

expectation. In 2001, Microsoft Company has started their project on

Interactive Table. Many innovations are coming out in the near future

related to this. Google is researching more on screenless tablet

computers and smartphones, eventhough they have proposed a

system based on the concept of virtual image. Also, Google is



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system based on the concept of virtual image. Also, Google is

developing a compact video camera which uses this new advancing

technology.

Its said that the electronic beam lithography will surely help the future

screenless display. So many labs are under research to bring out moreadvancement. For Artificial Retinal Displays, the technology of

microvision must be enhanced. Microvision technology can bring out

many exciting screenless display products. So, the technology is under

research and development for the better future of screenless display.

Companies are working out to bring more screenless mobiles, TV’s,

cameras and laptops for the coming generation. Intelligent Glassesthat can translate foreign text while reading is a current innovative

product brought out by Japan. The product will allow the wearer

manipulating virtual images in their field of view. More advancement is

taking place with the product, so that the size, weight and battery life

can be improved. Adobe Systems are working to bring out more

innovations. Its said that by 2020, the world will become a virtual oneand more exciting.

C t (5)

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Comments (5)

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Aditya Varma cochin,Kerala

Nice article.. Looking forward to the tech.. Hey and isnt it Goggles instead

of googles?(Dunno if its my mistake..)

Reply Report Abuse 02 August,2014 09:08

Mepits

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Thanks for going through the article and highlighting the

mistake. Wish to hear more from you.


BASIL VARGHESE Kerala

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Nice article

Reply Report Abuse 29 July,2014 04:07

jiss joseph cochin,Kerala

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SUJITH MATHEW Kochi,Kerala

yes but is it practical??


seems to be interesting..

Reply Report Abuse 12 July,2014 03:07

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