Liquid crystals were first discovered in the late 19th century by the Austrian botanist, Friedrich Reinitzer, and the term liquid crystal itself was coined shortly afterwards by German physicist, Otto Lehmann. Liquid crystals are almost transparent substances, exhibiting the … [Read more...]
LED Flat Panels
Nearly everyone is familiar with LEDs (light-emitting diodes) from their use as indicator lights and numeric displays on consumer electronic devices. The basic LED is a solid-state device that contains a chemical compound that gives off light … [Read more...]
LEP Flat Panels
Polymers are chemical substances that consist of large molecules that are, themselves, made from many smaller and simpler molecules: proteins and DNA are examples of naturally occurring polymers; many others, such as nylon, are artificially … [Read more...]
Flat Panel ALiS Technology
Fujitsu has developed a new plasma display type that overcomes the low-resolution restrictions of conventional PDPs. Called Alternate Lighting of Surfaces (ALiS), the technique uses interlaced rather than progressive scans. In a … [Read more...]
MVA – Multi-domain Vertical Alignment in LCD Monitors
Continuing research on its VA system led to a refinement - which Fujitsu refer to as Multi-domain Vertical Alignment (MVA) technology - a year later. The conventional mono-domain VA technology uniformly tilts the liquid crystal (LC) molecules to display an intermediate grey scale. … [Read more...]
OLED Flat Panels – Explain oled
Many electronic appliances are at the threshold of a revolution that began with the discovery of polymeric conductors in the 1970s. Polymeric materials, which have historically been classified exclusively as electrical insulators, are now finding varied applications as both conductors and … [Read more...]
PALCD Flat Panels
A peculiar hybrid of PDP and LCD is the plasma addressed liquid crystal display (PALCD). Sony is currently working, in conjunction with Tektronix, on making a viable PALCD product for consumer and professional markets. Rather than use the … [Read more...]
Plasma Flat Panels
Plasma Display Panels (PDPs) are like CRTs in that they are emissive and use phosphor, and like LCDs in their use of an X and Y grid of electrodes separated by an MgO dielectric layer and surrounded by a mixture of inert … [Read more...]
Polysilicon Flat Panels
The thin-film transistors which drive the individual cells in the overlying liquid crystal layer in traditional active-matrix displays are formed from amorphous silicon (a-Si) deposited on a glass substrate. The advantage of using amorphous silicon is that it doesn't require high temperatures, so … [Read more...]
Liquid Crystal Light Polarisation in LCD Monitors
LCD is described as a transmissive technology because the display works by letting varying amounts of a fixed-intensity white backlight through an active filter. The red, green and blue elements of a pixel are achieved through simple filtering of the white light. Most liquid crystals … [Read more...]