Computer graphics are used for movie making, video games, scientific modeling, and design. They can be displayed on devices like LCD and LED screens. LCD screens use liquid crystals to rotate polarized light and display images without emitting light themselves. They are used in televisions, monitors, and other devices. LED screens are a type of LCD screen that uses light-emitting diodes for backlighting, making them more energy efficient and enabling thinner designs than older LCD screens that used cold cathode fluorescent lamps. New flat panel displays continue advancing with technologies like organic LED lighting and curved or bendable screens.

1. Applications of computer
graphics
and
Display devices

2. Computer-generated imagery is used for movie making, video
game and computer program development, scientific
modeling, and design for catalogs and other commercial art.
Some people even make computer graphics as art

3. Applications of Computer Graphics

4. Display of Information
• Computational Biology: Computational biology is an interdisciplinary field that applies the
techniques of computer science, applied mathematics and statistics to address biological
problems. The main focus lies on developing mathematical modeling and computational
simulation techniques.
Computational Physics: Computational physics is the study and implementation of numerical
algorithm to solve problems in physics for which a quantitative theory already exists. It is often
regarded as a sub discipline of theoretical physics but some consider it an intermediate branch
between theoretical and experimental physics.
Information of Graphics: Information graphics or information graphics are visual representations
of information, data or knowledge.
Business presentation graphics - "A picture is worth a thousand words"
Scientific Visualization: Scientific visualization is a branch of science, concerned with the
visualization of three dimensional phenomena, such as architectural, meteorological, medical,
biological systems

5. Design
• Graphic Design: The term graphic design can refer to a number of
artistic and professional disciplines which focus on visual
communication and presentation
Computer-aided Design: Computer-aided design (CAD) is the use of
computer technology for the design of objects, real or virtual. The
design of geometric models for object shapes, in particular, is often
called computer-aided geometric design (CAGD).
Web Design: Web design is the skill of designing presentations of
content usually hypertext or hypermedia that is delivered to an end-
user through the World Wide Web, by way of a Web browser.

6. Video Game
• Digital Art: Digital art most commonly refers to art created on a
computer in digital form.
Video Games: A video game is an electronic game that involves
interaction with a user interface to generate visual feedback on a
raster display device. The electronic systems used to play video games
are known as platforms. This platform creates through graphics.
Virtual Reality: Virtual reality (VR) is a technology which allows a
user to interact with a computer-simulated environment

7. Simulation
• Computer Simulation: A computer simulation, a computer model or a
computational model is a computer program, or network of computers,
that attempts to simulate an abstract model of a particular system.
Education: Computer simulations have become a useful part of
mathematical modeling of many natural systems in physics (computational
physics), chemistry and biology, human systems in economics, psychology,
and social science and in the process of engineering new technology, to
gain insight into the operation of those systems, or to observe their
behavior.
Information Visualization: Information visualization is the study of the
visual representation of large-scale collections of non-numerical
information, such as files and lines of code in software systems, and the
use of graphical techniques to help people understand and analyze data.

8. Flat Panel Display
• A flat panel display is a television, monitor or other display appliance that
uses a thin panel design instead of a traditional cathode ray tube (CRT)
design.
• First invented:1964
• Advantages-
Space Saving
Display Size
Low Power Consumption
Disadvantages-
Durability
Cost
Viewing Angle

9. • Applications-
Laptop
Television
cellular phone
Digital cameras
Camcorders

10. LCD-Liquid Crystal Display
• nematic phase, liquid crystals are a bit like a liquid
• smectic phase(when cooled),now molecules can move in layers only-
solid
• uses the light-modulating properties of liquid crystals

11. • Liquid crystals do not emit light directly, instead using
a backlight or reflector to produce images in color or monochrome.
• Used in LCD televisions, computer monitors, instrument
panels, aircraft cockpit displays
• LCD screens do not use phosphors, they do not suffer image burn-
in when a static image is displayed on a screen for a long time
• Energy efficient
• Easy disposal

12. Types of LCD
• Passive Matrix
• Active Matrix
Disadvantages
lower contrast
expensive
slow
restricted viewing angle(120 degree)

13. Some comparisons
• Older LCD TVs used cold cathode fluorescent lamps (CCFLs) to provide
backlighting, whereas LED TV's used an array of smaller, more
efficient light emitting diodes (LEDs) to illuminate the screen, which
gave them a few advantages
• In a plasma screen, each pixel is a tiny fluorescent lamp switched on
or off electronically. In an LCD television, the pixels are switched on or
off electronically using liquid crystals to rotate polarized light.

14. LED-
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–
n junction diode that emits light when activated.
An LED screen is actually an LCD screen, but instead of having a normal CCFL backlight,
it uses light-emitting diodes (LEDs) as a source of light behind the screen. An LED is
more energy efficient and a lot smaller than a CCFL, enabling a thinner television screen
When a suitable current is applied to the leads,[6][7] electrons are able to recombine
with electron holes within the device, releasing energy in the form of photons. This
effect is called electroluminescence
1962, the earliest LEDs emitted low-intensity infrared light
The first visible-light LEDs were of low intensity and limited to red

15. • Techopedia explains Flat Panel Display
• New flat panel displays utilize a liquid crystal display (LCD) display.
This system lights up various pixels on the screen. The simple and
small infrastructure of flat panel displays allows for the manufacturing
of extremely light and portable screens, which are popular for
personal and business use. Some of the newest features of flat panel
displays include new organic LED lighting techniques that allow for
bendable display screens. Companies are experimenting with
panoramic displays that are curved rather than flat.