LCD


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LCD

(electronics)

LCD

LCD

(Liquid Crystal Display) A screen display technology developed in 1963 at the David Sarnoff Research Center in Princeton, NJ. How LCDs work is quite amazing. Sandwiched between polarizing filters and glass panels, rod-shaped molecules of liquid crystals flow like water and bend light like crystal. The overwhelming majority of TVs and computer screens are LCD (see LED TV). Mobile devices are also LCD but are switching to organic LED (OLED), which is increasingly becoming mainstream (see OLED). See liquid crystal.


Seven-Segment LCD Watch
Because it took so little power to move crystal molecules, LCD wristwatches and other monochrome LCD displays began to flourish in the 1970s. By the 1990s, color LCDs helped laptop sales boom, and LCD computer monitors outsold CRTs for the first time in 2003. (Image courtesy of the private collection of Peter Wenzig.)


Twisting and Straightening
The center segment of the "8" in the seven-segment display above shows how liquid crystal molecules twist to let light flow through (image courtesy of LXD, Inc.). Seven-segment displays are the simplest LCDs. All video screens use pixels made up of three LCD subpixels with light shining through color filters. For example, in a 4K TV set, there are 24 million subpixel segments. For a more in-depth explanation, see LCD example and LCD subpixels.

Reflective Vs. Backlit
In low-cost calculators and readouts, a reflector bounces ambient light back to the viewer (bottom of illustration). However, reflective displays may be unreadable in dim light. With backlit LCDs, a light below the reflector beams toward the viewer for a bright screen indoors (see transmissive LCD). Passive displays may be reflective or backlit, but active matrix TV and computer screens are always backlit (see LCD types and LED TV). See flat panel display, LCD vs. plasma, LCoS and indium.


Seven-Segment LCD Watch
Because it took so little power to move crystal molecules, LCD wristwatches and other monochrome LCD displays began to flourish in the 1970s. By the 1990s, color LCDs helped laptop sales boom, and LCD computer monitors outsold CRTs for the first time in 2003. (Image courtesy of the private collection of Peter Wenzig.)







LCD Vs. LED
LCDs and LEDs are widely used in combination as in this printer panel. Readouts are LCDs, but the indicator lights on billions of products are LEDs. LCD TVs use LED backlights (see LED and LED TV).
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LTPS employment, which enables a narrower LCD frame than that of amorphous silicon.
Philips LCD will deliver an address on "The Technologies of TFT-LCD Plants for Large Size Substrates," on October 30, 2003.
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4-inch LCD module, we expect to see a significant increase in their use in LCD devices and in their fields of use.
Designing a graphic LCD panel into a system can be a serious headache -- there's a long list of hardware and software components coming together -- panels, microcontrollers, display controllers and graphics software.
Since developing the world's first 14-inch color TFT LCD TV in 1988, Sharp has consistently led the industry with larger screen sizes, introducing the first 45-inch model in 2004 and the first 65-inch LCD TV.
5-inch ST-NLT-equipped LCD module, we have decided to launch a 12.
22" double-sided LCD - being exhibited for the first time at CES 2007 - is the first product to display two different images back to back in an ultra-thin mechanical package.
Philips LCD, said, "As digital broadcasting becomes more widespread and HDTV prices become more attractive, the demand for our products will continue to rise.
Philips LCD will supply approximately 700,000 panels to Syntax-Brillian in 2007 for the manufacture of increasingly popular Olevia LCD TVs for global distribution as well as LCD displays.
Philips LCD takes this matter very seriously and will cooperate fully with regulatory authorities.
Products provided under this contract are sources Printed Board Assemblies (PBA) for 17 and 19 inch LCD monitors which are the most widely produced models of Samsung LCD Monitors, and are the main products of SELS.