Panasonic develops first IPS liquid crystal panel with contrast ratio of over 1,000,000:1

December 6, 2016, Panasonic Corporation
Credit: Panasonic

Panasonic Liquid Crystal Display Co., Ltd., a subsidiary of Panasonic Corporation, today announced it has developed a new model of its IPS liquid crystal panel that achieves a contrast ratio of over 1,000,000:1, which is 600 times that of conventional liquid crystal panels. With Panasonic's unique IPS liquid crystal technologies that feature wide viewing angles, high brightness, and high reliability, the new IPS panel has achieved a high contrast ratio of over 1,000,000:1 by integrating newly developed light-modulating cells that permit pixel-by-pixel control of backlight intensity. This achieves a faithful and high-grade video display, ranging from dazzling light to pitch-black.

The new IPS panel is ideal for use in professional-use High Dynamic Range (HDR) monitors for broadcasting stations and video production studios. HDR displays can reproduce images that are faithful to what people see, ranging from bright light to jet-black darkness. Also, the new high-contrast panel is suitable for use such as medical monitors that require faithful video and automotive monitors that require clear visibility without black floating.

Panasonic's new IPS Liquid Crystal Panel has the following features:

  1. An industry-first high contrast ratio of over 1,000,000:1, which is 600 times that of conventional products
  2. Capable of stable operation at a maximum brightness of 1,000 cd/m²
  3. Can be manufactured using existing liquid crystal panel manufacturing facilities

The new high-contrast IPS panel solves the problems inherent in conventional liquid crystal panels. Despite their track record in wide-ranging applications from B-to-C to B-to-B fields, conventional liquid crystal panels suffer black floating, white washout phenomenon, in dark parts of the display area when the backlight intensity is increased to raise brightness. When the backlight intensity is lowered to make dark parts clearer, these panels also suffer a loss in sparkle in bright parts. The technology has applications in high-end monitors for broadcasting, video production, medical, automotive, and other fields.

Features

1. Industry-first high contrast ratio of over 1,000,000:1—600 times that of conventional products

Conventional liquid crystal panels, with a contrast ratio of approximately 1,800:1, suffer black floating in dark parts when the backlight intensity is increased, and they suffer a loss in sparkle in bright parts when the backlight intensity is lowered.

First IPS liquid crystal panel with contrast ratio of over 1,000,000:1
Structural comparison between conventional and new liquid crystal panels. Credit: Panasonic

Panasonic's new high-contrast IPS panel uses newly developed light-modulating , which operate based on the operating principle of liquid crystals, and these cells are integrated into the display cells. As a result, it is capable of controlling the amount of backlight entering the display cells pixel by pixel, thus achieving a of 1,000,000:1.

The light-modulating cells are composed of a liquid crystal material that differs in light-transmission properties from that used in the display cells, allowing independent control of the display and light-modulating cells. This has reduced light leakage significantly, allowing finely-tuned gradation expression. Furthermore, the application of Panasonic's IPS liquid crystal technologies, developed for industrial use, has achieved a contrast of 1,000,000:1 (maximum brightness: 1,000 cd/m², minimum brightness: 0.001 cd/m²) while maintaining features including wide viewing angles and high light-transmission efficiency.

Consequently, the new high-contrast IPS panel can make HDR-compatible displays for professional use at broadcasting stations and video production studios, and is suitable for uses including medical monitors and automotive monitors.

2. Capable of stable operation at a maximum brightness of 1,000 cd/m²

The new high-contrast IPS panel achieves a maximum brightness of 1,000 cd/m² by enhancing the transmittance of the display and light-modulating cells and adopting a high-brightness backlight. For the light-modulating cells, the company has developed a light-tolerant material that provides stable operation over a long period of time, despite exposure to intense light from the high-brightness backlight, as well as a unique cell structure.

3. Can be manufactured using existing liquid crystal panel manufacturing facilities

The new panel can be manufactured using the existing equipments for panel manufacturing. Panasonic Liquid Crystal Display Co., Ltd., possesses an industry-leading scale of 8.5th-generation (G8.5) production lines that are capable of manufacturing 10- to 100-inch products.

Explore further: World's First HTPS LCD Panel Using Inorganic Alignmnet Layer

Related Stories

World's First HTPS LCD Panel Using Inorganic Alignmnet Layer

February 24, 2005

Representing the latest technology in precise liquid crystal alignment, Sony Corporation announced today the successful development of the world's first HTPS LCD panel for front projector TV sets, has increased reliability ...

Glasses-free ultrahigh-definition 2D/3D switching display

December 30, 2014

Toshiba Corporation has developed a new technology for glasses-free 3D displays that uses a low-crosstalk, high-definition LCD GRIN lens with a 15-inch 4K LCD panel. The technology realizes a highly portable, compact display ...

LG claims world's thinnest LCD-TV panel

May 19, 2009

South Korea's LG Display said it has developed a liquid crystal display (LCD) television panel that is thinner than a pencil, describing it as the world's slimmest.

Recommended for you

What can snakes teach us about engineering friction?

May 21, 2018

If you want to know how to make a sneaker with better traction, just ask a snake. That's the theory driving the research of Hisham Abdel-Aal, Ph.D., an associate teaching professor from Drexel University's College of Engineering ...

Flexible, highly efficient multimodal energy harvesting

May 21, 2018

A 10-fold increase in the ability to harvest mechanical and thermal energy over standard piezoelectric composites may be possible using a piezoelectric ceramic foam supported by a flexible polymer support, according to Penn ...

Self-assembling 3-D battery would charge in seconds

May 17, 2018

The world is a big place, but it's gotten smaller with the advent of technologies that put people from across the globe in the palm of one's hand. And as the world has shrunk, it has also demanded that things happen ever ...

3 comments

Adjust slider to filter visible comments by rank

Display comments: newest first

Bergendergle
not rated yet Dec 14, 2016
Paying extra to enjoy a higher contrast ratio is just a waste of money. Despite what might seem to be a huge difference in absolute terms between say a 1,000:1 and a 1,000,000:1 contrast ratio, you will have to view the image in a completely dark room to perceive the resultant minimal difference in picture performance.
baudrunner
not rated yet Dec 14, 2016
That's not true. You would notice the difference right away, especially when viewing in a bright environment with sunlight streaming through the windows. Try watching your flat screen TV during the day in a sunny room and you'll understand how important this technology is. You'll wish you had one of those displays then.
PPihkala
not rated yet Dec 17, 2016
I think this shows that OLED is not going to win the race against LCD in near future, since this can make LCD compete better. Of course OLED is still better when it comes to power usage and light quality. Here with light quality I mean the difference that LCD inherently produces polarized light, which also contributes to worse power efficiency: half of the light coming from back light is filtered out, ie wasted.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.