TDK Blu-ray Disc

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TDK Blu-ray Disc

• February 2006
• TDK Corporation

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Be the first...
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TDK is first to launch
Nov. 30, 2005
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Contents

• Blu-ray Disc (BD) Overview
• BD vs. HD DVD
• TDKs Unique Advanced Technology
• Spin Coating
• Hard Coating (DURABIS2)
• Multi layer

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The Latest News

• Blu-ray Disc
• TDK started mass production BD samples.
• Pioneer BD drive launch in Q1 2006.
• BD player announced from Pioneer, Samsung, Sony,
  Philips and LG available in April to summer 2006.
  
• 80 BD-ROM titles announced.
• BD video recorders in autumn 2006.
• HD DVD
• HP supports both HD DVD and BD
• Toshiba HD-DVD player launch in March 2006.
• Microsoft Xbox360 external HD DVD drive.

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Blu-ray Disc Overview
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HDTV

• HDTV is offering a screenresolution 6x higher
  than PAL or SECAM
• 1920x1080 pixels (max.)
• Amount of video data per minute 6x that of
  standard TV.
• A regular DVD can hold only 20 minutes HD footage
• Only BD is offering enough capacity for full HD
  video quality

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HDTV Broadcast Commencing
Source TVB Europe and TDK
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The Blu-ray Disc Capacity
Boasts a memory capacity of about 35.7 CDs.
Single-sided, single-layer disc
C D 700MB
DVD 4.7GB (Equiv 6.7 CDs)
B D 25GB
(Equiv. 35.7 CDs)
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Why Can Blue Laser Expand Capacity?
Minimising track pitch maximises recording
density.
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Benefits of Blu-ray Disc

• High capacity
• 25GB/50GB (Dual layer)
• 3-6 hours HD video recording
• High quality video (advanced codec)
• Interactive function
• Internet connectivity
• Java application
• Copy protection
• Versatile applications

Dual layer BD (50GB)

• HD feature (3hr.)
• Audio (DTS3 Lang.)
• SD bonus (9hr.)

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Blu-ray Disc Applications
Recording of high-definition images with AV-PC
High-capacity data backup
Data library (office applications)
Authoring (product of BD-ROMs)
High-capacity game software
Recording of high-definition Images with BD
recorder
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Blu-ray Disc Association
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Blu-ray Disc vs. HD DVD
Sony Pictures Blu-ray Disc Titles
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Competition

• HD DVD
• NEC, Toshiba, Sanyo, and Memory-Tech
• Supported by DVD Forum
• 15/30GB bare disc with blue-violet laser
  technology
• First player will be launched in March 2006.
• Movie titles will be introduced in March 2006
  (USA only).

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Disc Structure
DVD
HD DVD
Blu-ray Disc
0.1mm
0.6mm

• Same structure as DVD
• Similar manufacturing process with DVD.

• Different structure from DVD
• Thin cover layer
• More room for multi-layer

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Hollywood Supports

• Blu-ray
• Sony Pictures Entertainment
• MGM
• 20th Century Fox
• Walt Disney
• Warner Brothers
• Paramount

• HD DVD
• Warner Brothers
• Paramount
• Universal

Source DVD Exclusive
Almost all major studios support BD now (80)!
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Comparison HD DVD vs BD
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Blu-ray Disc Advantages Over HD DVD

• Larger capacity BD 50GB vs HD DVD 30GB
• More versatile applications (HD movies, games,
  camcorders)
• Future Roadmap (100-200GB/6x)

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TDKs Advanced Technology
TDK Chikumagawa Techno Factory in Nagano, Japan
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TDK Technology in the Blu-ray Disc
Ultra smooth forming of the cover layer
High-precision spin coating technology
Safeguarding the disc recording surface from
scratches and dirt
DURABIS 2 technology
Enabling high-speed recording and multi-layering
Multi-Recording layer design technology
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Spin Coating Technology
Ultra-smooth cover layer
If the precision or smoothness of the cover layer
is irregular, the minute blue-violet laser beam
measuring 405nm would not penetrate
correctly. Consequently the laser beam will not
irradiate the recording layer accurately.
TDK developed an original spin coating method to
form the cover layer precisely, and utilises this
for the Blu-ray Disc.
Spin coating
Liquid resin, for the cover layer, is dropped
onto a rotating disc.
The disc is spun rapidly, and the resin is spread
outwards by centrifugal force.
A 0.1mm thick resin spread uniformly over the
entire disc surface then hardens.
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Spin Coating Technology
Ultra-smooth cover layer
Comparison of focus servo signals
RF signal
RF signal
Focus servo signal
Focus servo signal
TDK Blu-ray Disc (Stable waveform)
Disc having cover layer with poor
precision (Waveform is unstable)
Because the cover layer of the TDK Blu-ray Disc
is extremely uniform in thickness and possesses
superb smoothness, an outstanding focus servo
signal can be obtained.
This makes possible stabilized recording and
playback (RF signal).
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DURABIS2 Technology
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DURABIS Hard Coating Technology
DURABIS2 hard-coat layer
Spin-coated 0.1mm cover layer
Fast recording-speed phase change rewritable layer
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Scratch Resistance
DURABIS technology that safeguards data with a
robust coating
DURABIS 2 coating boasts superior resistance to
scratches
Here is a comparison of disc surfaces after
rubbing with a steel wool pad. The disc using a
DURABIS 2 coating is virtually free of scratches.
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Fingerprint Resistance
Laser spot size on the disc surface (approx. 130
µm)
Non-treated Surface
TDK ScratchProof DVD
TDK Blu-ray Disc DURABIS2
Artificially prepared fingerprints (
microscopic view )
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Recordability Playability
Fingerprints
Heavy
Medium
Light
OK !
Blu-ray Disc WITHTDK DURABIS2
Blu-ray Disc WITHOUT DURABIS
OK
NG
DVD-R
OK
NG
DVD-RW
NG
OK
DVD-RAM
NG
OK
OK Both recording and playback completed
NG Neither recording nor playback completed
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Multi-Layer Disc Technology
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Multi Layer Disc Technology
50GB capacity made possible by high-precision
stacking technology
Structural diagram of the write-once type
single-sided, dual layer Blu-ray disc
Laser beam
Dielectric layer
DURABIS 2 coating layer
Si layer
Cu alloy layer
Cover layer
Dielectric layer
Layer 1
Spacer layer
Dielectric layer
Layer 0
Si layer
Disc substrate
Cu alloy layer
Dielectric layer
Reflective layer
Layer 0 and layer 1 incorporate two recording
layers
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The Blu-ray Disc With the Potential for Even
Greater Capacity
TDK has succeeded in developing the world's first
single-sided, four-layer 100GB high-capacity
write-once type disc. In addition, TDK has
succeeded in developing a high-speed disc with
216Mpbs (6X) recording.
TDK's World-leading Disc Technology
Structure of the single-sided, four-layer
write-once type disc
Recording layer
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Blu-ray Disc Line-Up
(All with jewel case packaging)
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Professional Disc

• A derivative of blue laser disc.
• Developed for Professional camcorder Sony XDCAM
• 23.3GByte/72Mbps x 2
• Seen as next generation professional recording
  media
• Available since July 2005

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Be the first...TDK is launching first Blu-ray
discs in Europe
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Thank you
Taro Ikushima taro_ikushima_at_tdk-lu.com ? 44
(0)1737 781-329