TVs get bigger, fancier, pricier
Buyer's remorse may be a thing of the past for purchasers of new television sets.
Buyer's remorse may be a thing of the past for purchasers of new television sets.
Consumer & Gadgets
Jul 5, 2012
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Scientists have used the tiny distortions imprinted on the cosmic microwave background by the gravity of matter throughout the universe, recorded by ESA's Planck satellite, to uncover the connection between the luminosity ...
Astronomy
Apr 18, 2019
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(PhysOrg.com) -- A new kind of screen pixel doubles as a solar cell and could boost the energy efficiency of cell phones and e-readers. The technology could also potentially be used in larger displays to make energy-harvesting ...
Nanomaterials
Oct 7, 2011
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LG Electronics today unveiled two new ultra-slim "full LED" LCD TVs in Seoul. The new 55-inch screens- models 55LH95 and 55LH93 respectively - lead the market in terms of picture quality, design and convenience.
Consumer & Gadgets
Jun 25, 2009
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(PhysOrg.com) -- Sony has announced via its webpage the development of a new type of LCD display that uses either half as much power as current same-size LCD displays, or the same amount of power, but doubles the brightness. ...
(PhysOrg.com) -- Philips Research has developed a novel color e-paper technology that opens up new design opportunities for personalizing electronic devices. This means that the color and appearance, of the device’s surface, ...
Hi Tech & Innovation
Dec 9, 2009
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Amazon unveiled four new Kindle Fire tablet computers on Thursday, including ones with larger color screens, as the online retailer steps up competition with Apple ahead of the holiday shopping season.
Consumer & Gadgets
Sep 6, 2012
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NXP Semiconductors today announced the availability of the PNX5130, the industry's first video co-processor enabling 3DTV, frame-rate conversion (FRC) and local backlight dimming in a single chip. By eliminating the need ...
Hardware
Dec 15, 2009
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(AP) -- A third to a half of the Sony Corp. TV sets sold annually will be packed with 3-D features by the year ending March 2013, a senior executive said Thursday.
Hi Tech & Innovation
Nov 26, 2009
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University of Michigan scientists have created the smallest pixels available that will enable LED, projected and wearable displays to be more energy efficient with more light manipulation possible and all on a display that ...
Nanophysics
Sep 28, 2010
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A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light themselves (unlike for example Cathode ray tube (CRT) displays), they need illumination (ambient light or a special light source) to produce a visible image. Backlights illuminate the LCD from the side or back of the display panel, unlike frontlights, which are placed in front of the LCD. Backlights are used in small displays to increase readability in low light conditions, and in computer displays and LCD televisions to produce light in a manner similar to a CRT display.
Simple types of LCD displays are built without an internal light source, requiring external light sources to convey the display image to the user. Modern LCD screens, however, are built with an internal light source. Such LCD screens consist of several layers. The backlight is usually the first layer from the back. But in order to create screen images, a mechanism is needed to regulate the light intensity of the screen's pixels. For this, light valves are used that vary the amount of light reaching the target by blocking its passage in some way. The most common element is a polarizing filter to polarize the light from the source in one of two transverse directions and then passing it through a switching polarizing filter, to block the path of undesirable light.
This text uses material from Wikipedia, licensed under CC BY-SA