This document is a seminar report on the Chameleon Chip. It provides an abstract that describes the Digital Light Processing (DLP) technology used in high-brightness projection systems, including the Digital Micromirror Device (DMD) chip at its core. The report will cover the structure and operation of the DMD modulator, DMD cell architecture, electronic operation of the DMD chip, different chip modes in DLP systems, advantages of DLP over LCD projectors, and will conclude with references.

1. A Seminar Report On
“CHAMELEON CHIP”
Submitted in partial fulfillment of the award of the degree of
Bachelor of Technology
(ECE)
By
V.AAJAZ BASHA
Submitted to
DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING
MADINA ENGINEERING COLLEGE
(Affiliated to J.N.T.University, Anantapur)
Kadapa-516003
2013

2. MADINA ENGINEERING COLLEGE
(Affiliated to J.N.T.University, Anantapur)
Kadapa-516003
2013
DEPARTMENT OF
ELECTRONICS AND COMMUNICATION ENGINEERING
CERTIFICATE
This is to certify that the seminar report entitled “CHAMELEON CHIP” is a bonafied
record submitted by V.AAJAZ BASHA bearing Reg.No.09721A0401 in partial
fulfillment for the award of Degree of Bachelor of Technology in ECE for the
academic year 2012-2013.
SEMINAR SUPERVISOR
HEAD OF DEPT.ECE
SENIOR FACULTY: 1)
2)

3. ACKNOWLEDGEMENT
An endeavor of a long period can be successful only with the advice of
many well wishers. We take this opportunity to express my deep gratitude and
appreciation to all those who encouraged me for successfully completion of the
technical seminar
We wish to express our sincere gratitude to Sri Dr. S.SHARIEF BASHA,
Ph.D., M.I.S.T.E Principal, Madina Engineering College, kadapa for his
consistent help and encouragement to complete the technical seminar.
We would like to thanks Sri Dr. SRINIVASULU, Ph.d, PROFESSOR,
VICE PRINCIPAL of Madina Engineering College.
It is our privilege to thank P. ABDUL KHAYUM M.Tech, (Ph.D.,), M.I.E,
M.I.S.T.E., Head of the Department of Madina Engineering College and Professor
of DEPARTMENT OF ELECTRONICS AND COMMUNICATION for his
encouragement during the progress of technical seminar, for his timely suggestions
and help in spite of his busy schedule.
Finally, we would like to express our sincere thanks to faculty members of
E.C.E department, batch mates, friends, and lab technicians, one and all who has
helped us to complete the technical seminar successfully.
As a gesture of respect for our family members and for the support we
received from them we are dedicating this work to them.
………. PROJECT ASSOCIATES

4. ABSTRACT
Electronic projection display technology for high-brightness applications
had its origins in the Gretag Eidophor, an oil film-based projection system
developed in the early 1940s. A number of solid state technologies have challenged
the Eidophor, including CRT-addressed LCD light valves and active-matrix-
addressed LCD panels. More recently, in response to various limitations of the
LCD technologies,high-brightness systems have been developed based on Digital
light Processing tm technology. At the heart of the DLP tm projection display is the
Digital Micromirror Device tm (DMD)tm, a semiconductor-based array of fast,
reflective digital light switches that precisely control a light source using a binary
pulse width modulation technique.
This paper describes the design, operation, performance, and advantages of
DLP-based projection systems for high-brightness,high-resolution applications. It
also presents the current status of high-brightness products that will soon be on the
market.

5. INDEX
 INTRODUCTION
 DLP STRUCTURE
 DMD MODULATOR
 DMD MODULATOR STRUCTURE
 DMD CELL ARCHITECTURE
 ELECTRONIC OPERATION IN DMD CHIP
 DIFFERENT CHIP MODES IN DLP
 ADVANTAGES OF DLP
 LCD PROJECTORS
 LCD VS DLP PROJECTOR
 CONCLUSION
 REFERENCES