LCD technology developed in Hong Kong maintains the 3D images it displays without drawing power
At first glance, the static, greyscale display created by a group of researchers from the Hong Kong University of Science and Technology, China might not catch the eye of a thoughtful consumer in a market saturated with flashy, colorful electronics. But a closer look at the specs could change that: the ultra-thin LCD screen described today in a paper in The Optical Society’s (OSA) journal Optics Letters is capable of holding three-dimensional images without a power source, making it a compact, energy-efficient way to display visual information.
Liquid crystal displays (LCDs) are used in numerous technological applications, from television screens to digital clock faces. In a traditional LCD, liquid crystal molecules are sandwiched between polarized glass plates. Electrodes pass current through the apparatus, influencing the orientation of the liquid crystals inside and manipulating the way they interact with the polarized light. The light and dark sections of the readout display are controlled by the amount of current flowing into them.
The new displays ditch the electrodes, simultaneously making the screen thinner and decreasing its energy requirements. Once an image is uploaded to the screen via a flash of light, no power is required to keep it there. Because these so-called bi-stable displays draw power only when the image is changed, they are particularly advantageous in applications where a screen displays a static image for most of the time, such as e-book readers or battery status monitors for electronic devices.
“Because the proposed LCD does not have any driving electronics, the fabrication is extremely simple. The bi-stable feature provides a low power consumption display that can store an image for several years,” said researcher Abhishek Srivastava, one of the authors of the paper.
The researchers went further than creating a simple LCD display, however —they engineered their screen to display images in 3D. Real-world objects appear three-dimensional because the separation between your left eye and your right creates perspective. 3D movies replicate this phenomenon on a flat screen by merging two films shot from slightly different angles, and the glasses that you wear during the film selectively filter the light, allowing one view to reach your left eye and another to fall on your right to create a three-dimensional image.
However, instead of displaying multiple images on separate panels and carefully aligning them—a tedious and time-consuming process—the researchers create the illusion of depth from a single image by altering the polarization of the light passing through the display. They divide the image into three zones: one in which the light is twisted 45 degrees to the left, another in which it is twisted 45 degrees to the right, and a third in which it is unmodified. When passed through a special filter, the light from the three zones is polarized in different directions. Glasses worn by the viewer then make the image appear three-dimensional by providing a different view to each eye.
The Latest on: Display technology
via Google News
The Latest on: Display technology
- Autopilot Market including top key players Cloud Cap, Lockheed Martin, Ascending Technologies, MicroPiloton May 8, 2021 at 2:00 am
The study provides company profiling, product picture and specifications, sales, market share and contact information of key manufacturers of Autopilot Market, some of them listed here are Cloud Cap, ...
- WIMI Hologram Cloud Applies AR and AI Technology to Autonomous Car Driving, and the Holographic Smart Cockpit Makes Sci-Fi Movies Come Trueon May 7, 2021 at 6:14 pm
Tailor Insight, the fintech market research organization, recently released a research report “WIMI Hologram Cloud Applies AR and AI Technology ...
- Next-Generation Display Materials Industry Trends, Revenue, Size, Analysis, Key Players, Growth, Share and Forecast Till 2028on May 7, 2021 at 10:26 am
Rising demand for lightweight, slim displays with high resolution is fueling revenue growth of the global next-generation display materials market.
- 3 Reasons to Buy Universal Display After the Stellar First-Quarter Reporton May 7, 2021 at 7:45 am
Display and lighting technology developer Universal Display (NASDAQ:OLED) just delivered the kind of earnings surprise that usually sends share prices to the moon. Sales rose 19% year over year to ...
- Military Heads-up Display (HUD) Market Business Overview and Global Development Trends 2027 | By Share, Growth, Shareon May 7, 2021 at 5:40 am
Market assures a treasure of information on a plethora of growth opportunities. The study includes expansive research by expert analysts. All the growth factors revolving around the Military Heads-up ...
- 4K Technology Market Is Booming Worldwide | LG Electronics, Samsung, Panasonic, Canonon May 7, 2021 at 3:04 am
Global 4K Technology Market Research Report with Opportunities and Strategies to Boost Growth COVID 19 Impact and Recovery is latest research study released by HTF MI evaluating the market ...
- Global Laser Display Technology Market Overview, Size, Share, and Trends 2021on May 7, 2021 at 2:40 am
According to this study, over the next five years the Laser Display Technology market will register a 16.0%% CAGR in terms of revenue, the global market size will reach $ 10230 million by 2025, from $ ...
- Universal Display Corp (OLED) Q1 2021 Earnings Call Transcripton May 6, 2021 at 7:31 pm
Q1 2021 Earnings Call May 6, 2021, 5:00 p.m. ET Operator Good day, ladies and gentlemen, and welcome to Universal Display's First quarter 2021 Earnings Conference Call. My name is Sherry, and I will ...
- WHAT THE TECH? 'Infinite Objects' offers ways to display digital artwork or NFTson May 6, 2021 at 4:27 pm
Infinite Objects has an online store for collectors to purchase digital artwork and also provides a way for anyone to create their own digital masterpiece.
- Universal Display Corporation Announces First Quarter 2021 Financial Resultson May 6, 2021 at 1:08 pm
Universal Display Corporation (Nasdaq: OLED), enabling energy-efficient displays and lighting with its UniversalPHOLED ® technology and materials, today reported financial results for the first ...
via Bing News