Verdens høyeste* antall piksler, 35 megapiksler:
Mer enn 17 ganger fullstendig høydefinisjon

JVC har utviklet 1,75” 8K4K D-ILA-enhet

~ Verdens første* enkeltskjermenhet med Super Hi-Vision*² (33 megapiksler)~

Victor Company of Japan, Ltd. (JVC) lanserer et nytt tillegg til sin egen serie D-ILA (Direct-Drive Image Light Amplifier) høydefinisjons reflekterende flytende krystall-enheter for projektorer. Den nyutviklede 1,75” 8K4K D-ILA-enheten har verdens største antall piksler* og kan vise bilder med ca. 35 megapiksler (8192 x 4320 piksler), tilsvarende mer enn 17 ganger nivået for fullstendig høydefinisjon. Dette betyr at en enkelt visningsenhet nå kan produsere Super Hi-Vision-bilder og vise bilder med det høyeste antallet piksler som for tiden er definert i henhold til internasjonale standarder.
*1 As a projection-type display device, as of May 2, 2008.
*2 Super Hi-Vision is a TV broadcasting service currently under development at NHK; a single image has approximately 33 megapixels (7680 x 4320 pixels), with 60 frame/second sequential scanning and 22.2 multichannel sound. Image format is international standard ITU-R BT.1769, SMPTE 2036. Diagonal size is 1.67 inches at Super Hi-Vision standard pixel dimensions of 7680 x 4320.

Etter at JVC utviklet den opprinnelige 7,86-megapikslers (3840 x 2048 piksler) 4K2K D-ILA-enhet sommeren 2003, fulgte man opp med å utvikle teknologien for særdeles naturtro høydefinisjonsbilder med en rekke testvisninger og verifiseringstester, som førte til utviklingen av JVCs første kommersielle 4K2K D-ILA-enhet (1,7” i størrelse, 5 000:1 kontrastforhold) og 4K2K D-ILA-projektoren med den enheten i september 2004.
I juni 2007 utviklet JVC en 1,27” 4K2K D-ILA-enhet som var verdens minste enhet i sitt slag, med 6,8µm pikselpitch og 4096 x 2400 piksler, og i februar 2008 startet markedsføringen av en nylig kommersialisert profesjonell D-ILA-projektor, DLA-SH4K, med nettopp den enheten.

Med utviklingen av en ny produksjonsprosess og en ny pikselstruktur for enda finere piksler har JVC lykkes i å utvikle 1,75” 8K4K D-ILA-enhet, verdens første enhet som har oppnådd virkelig Super Hi-Vision definisjonsnivå. Den nye enheten har ca. 50 % større tetthet i flate per piksel sammenliknet med 1,27” 4K2K D-ILA-enheten, som opprinnelig var verdens minste 4K-enhet. Dessuten har den nye enheten oppnådd en bildevisning på ca. 35 megapiksler, verdens høyeste antall piksler*¹, samtidig som den fortsatt har D-ILA-seriens egenskaper som ”høykvalitetsbilder uten forstyrrende pikselstruktur”, ”stor lystilgjengelighet” og ”høyt kontrastforhold”.

Resolution comparison of Full High-Definition, 4K2K, and Super Hi-Vision (simulation)

Features of New 1.75-inch 8K4K D-ILA Device
1 The 4.8µm pixel pitch fine pixel technology makes possible a device that is just 1.75 inches on the diagonal while achieving ultra-high-definition images of 35 megapixels (8192 x 4320 pixels), the highest pixel count in the world.
2 The device resolution of 8192 horizontal x 4320 vertical dots is fully compatible with the Super Hi-Vision standard (7680 x 4320 pixels) being promoted by NHK as next-generation broadcast technology. Able to display ultra-high-definition images that are 17 times Full High-Definition and 4 times conventional 4K2K (the DCI 4K digital cinema standard), the new device can be used for a wide range of leading-edge ultra-high-definition imaging applications.
3 The 0.24µm gap between pixels achieves a high aperture of 90% or higher surface devoted to image, while maintaining ultra-high resolution. In addition, technology adopted to reduce disorder caused by liquid crystal orientation has made it possible to limit extraneous light such as scattered and diffracted light from reflective surfaces, with the end result being a high contrast ratio of 20,000:1 for device contrast.
4 By applying the same inorganic alignment layer used on previous D-ILA devices, the tradition of long life and high durability is successfully maintained.
5 JVC's extensive production experience and technology made it possible to achieve both reduced liquid crystal cell gaps and high image uniformity, with the goal being to achieve quick liquid crystal response.
6 It is possible to create a device driver for the ultra-high-bandwidth signal of 8K4K resolution by adopting a new package structure that accommodates the optimized internal driver design and the increased number of drive signal line inputs.

Development Background
In 1996, JVC embarked on the development of ultra-high-definition image systems to surpass High-Vision definition. The company developed the first 7.86-megapixel (3840 X 2048 pixels) 4K2K D-ILA device in summer 2003 and began supplying projectors containing this device for research applications in March 2001.
In June 2007, JVC developed a 1.27-inch 4K2K D-ILA device having a 6.8µm pixel pitch and 4096 x 2400 pixels, and in February 2008 it began marketing a newly commercialized professional D-ILA projector, DLA-SH4K, incorporating that device.
While pursuing these development activities, JVC has also been contributing to research and development of ultra-high-definition image systems domestically and internationally through cooperation with the standardization of the Digital Cinema Initiative (DCI) 4K2K specifications and by providing projectors for the Super Hi-Vision 8K4K system being developed by NHK.
In recent years, the use of Full HD has continued to spread among households worldwide. At the same time, however, proposals are being made vigorously for new television broadcasting standards that go beyond HD, and great efforts are also being made proactively to satisfy the growing need for next-generation, high-definition images that surpass HD in fields such as digital cinema, presentations, monitoring/control, and medical applications.
JVC's new 1.75-inch 8K4K D-ILA device is a display device that satisfies expanding ultrahigh-definition imaging requirements by providing the world's highest level*¹ of resolution. In addition to the contribution that the device will make to progress in next-generation ultra-highdefinition imaging technology such as Super Hi-Vision, JVC also plans to utilize it in development of the ultimate in imaging technology: ultra-realistic 3D display technology.

Lineup of D-ILA High-Definition Devices Major Specifications

Device	Panel Size	No. of Pixels (H x V)	Aspect Ratio	Use
1.75” 8K4K	1.75 inch	8192 x 4320	17:9	New Developments, Research of High-Definition Pictures
1.7” 4K2K	1.7 inch	4096 x 2160	17:9	Research of High-Definition Pictures
1.27” 4K2K	1.27 inch	4096 x 2400	16:9.4	Installed in Projector, DLA-SH4K
0.7” Full High-Definition	0.7 inch	4096 x 2160	17:9	Installed in Projectors, DLA-HD100 & HD1

Device size	1.75-inch diagonal
No. of pixels (H x V)	8192 x 4320 pixels
Pixel pitch	4.8µm
Gap between pixels	0.24µm
Aperture ratio	90% or higher
Device contrast ratio	20,000:1
Response time (tr + tf)	4.5ms
LC mode	Vertical Aligned LC
LC alignment film	Light stabilized inorganic alignment film

What are D-ILA Reflective Liquid Crystal Devices? D-ILA is the name given to JVC’s proprietary high-performance reflective liquid crystal devices for projectors. These are typical LCOS (Liquid Crystal on Silicon) devices that provide both high brightness and high definition. JVC successfully developed the 1.3-megapixel SXGA type device in October 1997 and launched the D-ILA projector the same year. Since that time, the company has accumulated many years of production experience with devices for high-end projectors and continually released new products: in May 2004, the company launched the world’s first domestic Full HD front-projection system and then launched rear-projection systems into the US market in the July the same year. The D-ILA Full High-Definition home theater projector DLA-HD1 launched in January 2007 utilized a newly developed 0.7-inch Full High-Definition D-ILA device and a new optical engine to achieve 15,000:1 native contrast ratio and "true black" expression without using an iris mechanism. Furthermore, the successor model DLA-HD100 introduced in December 2007 achieved the industry’s highest*⁴ 30,000:1 native contrast ratio. Both models were well reviewed and proved great hit products in the global market. The professional D-ILA projector, DLA-SH4K, which went on sale in 2008, achieves both 10,000:1 high contrast ratio and about 10-megapixel resolution more than four times the Full High-Definition level. This overwhelming image quality has received high praise, particularly in the presentation field.

*4 For a home theater projector, as of May 2, 2008, based on JVC survey.

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05/2008