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3-LCD Panels D6 D7 D8 inorganic vs. organic |More reviews|

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  EPSON 3-LCD FAQ

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3LCD

Summary

Epson keep improving the specifications with every new D series 3-LCD panel with the exception of D7 version for entry level projectors. This means that while they may sound by model number to be the same they may not be, you can often tell which version by the price (if talking projectors) plus the claimed maximum contrast (Wacky full on/off measurements projector makers quote). This test does not apply to all projectors such as the Mitsubishi range including HC-7000 which use the older D6 version. |more|

People may be concerned with inorganic vs. organic in home cinema but this is not really a consideration in terms of projector life. You never worried about it on your LCD TV or Notebook PC.

There have been projectors around for years (Sanyo PLV Z1 for example) using organic substrate LCD yet you don't see complaints about longevity. Now that many projectors come with a 3 year warranty this must give you some peace of mind regardless of the LCD panels.

Data projectors stress LCD panels by operating at far greater brightness for longer run times yet Sanyo's first inorganic data projector kicks in at 6,000 lumens. So using say 1,200 lumens for 4 hours per night is a walk in the park.

Full time use of any inorganic LCD projector not built for the job (with large case high cooling) will first destroy the polarizing filter (in about 12 months) however this is not what home cinema projectors are designed to do any more than your hair dryer is designed to heat your house.

The biggest change between models is from 10 to 12 bit LCD processing which makes a massive difference to the number of colours.

12 Bit LCD and HDMI 1.3 combined allows for Next-generation “xvYCC” color space supports 1.8 times as many colors as existing HDTV signals. |more|

LCD or DLP?

Several projector brands that were just DLP are now offering 1080P HD models in LCD, there are good reasons why Epson have sold 50m 3-LCD engines. They have great vibrant colours without "rainbows" and no fast moving parts. You get all 3 primary colours projected at the same time, this is easy on the eyes. DLP must cut colours up by using a spinning colour wheel (single chip models) and project each component of the colour sequentially. This has several bad effects, it weakens the colour, it causes rainbows, your visual system is doing a lot of processing to put the colours back together. This in our humble opinion is why some people get headaches when watching DLP for long periods. |more|

The rainbow effect that may be seen only on 1-chip sequential color projection systems is the result of a rotating color wheel that spins at a rapid speed and displays colors sequentially. Viewers who perceive this blurring or separating of colors may find it annoying and distracting. Projectors powered by 3LCD technology have 3-chips and a solid state optical design so there is no color breakup or rainbow effect.


Source 3LCD.com

Occasionally DLP fans trot out tests where they kill a few LCD projectors but they run them 24/7 in a room that's over heated by running several at the same time. You can kill any product if you use it in a way not intended.

If a pixel fails in DLP you get a permanent black or white dot on the screen, if a pixel fails on LCD we doubt you'd notice as 3 are used for each colour.

LCD does not have high speed bearings as used in single chip DLP projectors (which will wear out given time.) There are no DLP "rainbows" either which in single chip models are a real pain if you see them. |more| DLP has it's place it's great technology but it seems it's not in the 1080P Home Cinema big sellers. We've just seen the latest Sanyo PLV-Z3000 WoW! What more could you want from a projector? The only limitations now are your eyes and the source programs.

-- AIM

3LCD is the world’s leading projection technology..

Delivering unbelievably bright and natural color, amazing detail and road-tested reliability. Using an advanced, 3-chip design, 3LCD offers full-time color for brilliant quality images without the possibility of color break-up. 3LCD is based on LCD technology, which is used by leading manufacturers worldwide for the ultimate viewing experience in a variety of products. For the latest list of companies supporting 3LCD technology in projectors and large screen TVs visit the 3LCD website at http://www.3lcd.com/.

-Time Line -

- TOKYO, Japan, September 14, 2006 -

Epson D6 panel - 1080p HD technology

D6 series high-temperature polysilicon TFT liquid crystal panels are equipped with hybrid driving technology that further enhances the performance of its 3LCD-type front-projectors and large screen LCD projection TV.

The D6 series panel, which incorporates the “Crystal Clear Fine” inorganic alignment layer HTPS technology, is a 0.7-inch model designed for true-HD-ready (1080p) TV systems and front-projectors for home.

The D6 series employs a hybrid technology that uses internal and external drivers for driving the LCD. Preceding products called for horizontal driver IC to be provided inside the panel. Externally mounted horizontal driver ICs, as used in the D6 series technology, have superior driving capabilities.

In addition to the D6 series panel’s own features, C2 Fine’s capabilities are also effectively incorporated to achieve high contrast, produce smooth images, and reproduce jet black, resulting in high-definition images. The D6 series panel, which incorporates these technologies and provides true HD (1080p), will allow users to enjoy with simplicity and ease high-definition image quality on projection systems employing the 3 LCD design and front home projectors.

Epson D6 Series

• Improved writing characteristics.
• Low power consumption.
• Reduction of space required by circuit board.

Crystal Clear Fine
C2fine

• Use of vertical alignment technology achieves high contrast.
• Use of inorganic alignment layer reduces orientation unevenness.

Features of Crystal Clear Fine
C2 Fine is Epson's original high-definition technology that realizes high-contrast, lustrously bright, high quality images by incorporating an inorganic LC alignment layer and vertical alignment technology.
1. Use of vertical alignment technology achieves high contrast
2. Use of inorganic alignment layer reduces orientation unevenness and produces smooth images
3. Use of normally-black mode and vertical alignment technology enables reproduction of jet black

L3C07U series specifications (compared with preceding product)

Specifications

  Preceding product New product L3C07U Series
Technology D5 D6
Effective pixels 1284 x 724 (720p) 1920 x 1080 (1080p)
Screen size (diagonal) 0.7 inch (1.8 cm) 0.7 inch (1.9 cm)
Pixel pitch 12 µm 8.5 µm
Aperture ratio* 59% 43%
Contrast 450:1 1500:1

* The ratio of each pixel's light-transmissive area to its total area.

Click here to see our full projector range Info with price link on page..

- TOKYO, Japan, August 23, 2007 -

Features of the new panels
The new panels combine high contrast, smooth images, and jet black color reproduction of C2 Fine panels with the advantages of the hybrid driving technology* used in previous panels.

The new D7 panels also feature the following points:

  1. A 20% improvement in aperture ratio compared to the previous model of the same size.
  2. Improved color reproduction by using a 12-bit LCD driver.
  3. Improved noise immunity by using a Mini-LVDS interface.
    *Hybrid driving technology: Technology for driving LCD panels using both internal and external drivers.

Benefits for manufacturers of projection products

  • Offers enhanced luminance with the same lamp.
  • Enables use of a lower-watt lamp to achieve the same luminance (reduced power consumption).

New panel specifications

  Existing L3C07U-75G00 Newly-developed L3C07U-85G10
LCD type C2FINE (VA inorganic alignment layer) C2FINE (VA inorganic alignment layer)
Effective pixels 1920 x 1080 (1080p) 1920 x 1080 (1080p)
Panel size (diagonal) 0.7 inch (1.9 cm) 0.7 inch (1.9 cm)
Pixel pitch 8.5 µm 8.5 µm
Aperture ratio 43% 52%
LCD driver 10 bit 12 bit
Video signal transmission CMOS Mini-LVDS
LCD driver type Hybrid Hybrid
Process Technology D6 D7

Epson have both reduced the panel size and increased the proportion of panel area allowing light through. This makes it possible for manufacturers to achieve higher luminance with the same projector lamp or reduce the lamp wattage for the same result.

Another improvement built-in to the D7 is the higher rate 12-bit LCD driver.

This allows more colors and shades of gradation to be represented. While the D6’s 10-bit driver could control 1.1 billion colors, the new 12-bit capability boosts performance by 64 times to 68.7 billion colors. Gradation levels jump from a possible 1,024 to 4,096. These performance boosts make it possible for Epson to support the new xvYCC (called x.v.Color) color standard. |link|

– TOKYO, Japan, August 28, 2008 –

Epson Ships 50 Millionth HTPS TFT Panel for 3LCD Projection Systems

Seiko Epson Corporation ("Epson") today announced that it recently shipped its 50 millionth high-temperature polysilicon (HTPS) TFT panel for 3LCD projection systems.

– TOKYO, Japan, September 9, 2008 –

D7/C2 Fine panel for high-end projectors

D7

D7 chip set with C²Fine takes advantage of a new inorganic substrate and polarizing light filter.

The new panel for high-end projectors carries on the high contrast, smooth images, and jet black color reproduction achieved by the existing C2 Fine panel, as well as offering the features described below.

1. Displays 120 frames per second

  • Able to input video image signals that contain intermediate frames
  • Improved response to moving images

2. Miniaturization of circuits

  • Reduced the number of ICs used from four to one by embedding mini-LVDS interface function onto video signal processing IC

Specifications (comparison with existing product)

Product name Existing L3C07U-85G10 Newly-developed L3C07U-85G11
LCD type C2 Fine (VA inorganic alignment layer) C2 Fine (VA inorganic alignment layer)
Effective pixels 1920 x 1080 (1080p) 1920 x 1080 (1080p)
Panel size (diagonal) 0.7 inch (1.9 cm) 0.7 inch (1.9 cm)
Pixel pitch 8.5 µm 8.5 µm
Aperture ratio 52% 52%
LCD driver 12 bit 12 bit
Video signal transmission Mini-LVDS Mini-LVDS
Frame rate 60 frames per second 120 frames per second
LCD driver type Hybrid Hybrid
Process technology D7 D7
Number of driver IC 4 1

D7 panel for entry-level projectors

First 0.7-inch TN organic alignment layer product for a front projector that is capable of delivering full high-definition

Click here to see our full projector range Info with price link on page..

Specifications

Product name L3D07U-85G30
LCD type TN organic alignment layer
Effective pixels 1920 x 1080 (1080p)
Panel size (diagonal) 0.7 inch (1.9 cm)
Pixel pitch 8.5 µm
Aperture ratio 52%
LCD driver 10 bit
Video signal transmission CMOS
Frame rate 60 frames per second
LCD driver type Hybrid
Process technology D7

Contact:
Seiko Epson Corp. Brand Strategy & Communications
Contact us by e-mail
URL: http://www.epson.co.jp/e/


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