Television panel

A more recent application for formulations containing tiie aqueous developed conductors is the production of displays such as plasma high-definition television panels. The line resolution and placement accuracy of the photocurable pastes in this application can be used to generate more pixels per square xmit of panel, resulting in improved picture quality. 

Color television panel glass (gray color for screen contrast enhancement)... 

Glass is generally pressed at a viscosity between 2000 and 3000 P with an applied pressure of about 100 Ib/in of article surface area. For large television panels, the total force on the plunger can exceed 20 tons. Temperature control of the molds and plunger... 

Donor and acceptor levels are the active centers in most phosphors, as in zinc sulfide [1314-98-3] ZnS, containing an activator such as Cu and various co-activators. Phosphors are coated onto the inside of fluorescent lamps to convert the intense ultraviolet and blue from the mercury emissions into lower energy light to provide a color balance closer to daylight as in Figure 11. Phosphors can also be stimulated directly by electricity as in the Destriau effect in electroluminescent panels and by an electron beam as in the cathodoluminescence used in television and cathode ray display tubes and in (usually blue) vacuum-fluorescence alphanumeric displays. 

Liquid crystal display systems have been increasingly used in electro-optical devices such as digital watches, calculators, televisions, instmment panels, and displays of various kinds of electronic equipment, ie, lap-top computers and word processors. The dominant reason for thek success is thek extremely low power consumption. Furthermore, the Hquid crystal display systems have been remarkably improved in recent years, and today they have high resolution (more than 300,000 pixels) and full color capabiUty almost equivalent to those of a cathode ray tube. 

Cathode ray tubes (CRTs) are almost universally used in colour televisions and still dominate in the display monitors of desktop computers. They are obviously not suitable for laptop PCs, because of bulk and weight, where currently liquid crystal displays are the systems of choice. Neither are they the most suitable technology for very large area displays, where other display techniques such as plasma panels and electroluminescent devices offer advantages. 

As a result of increased exposure to the work of forensic scientists, juror selection has become more difficult, since jurors now expect prosecutors to provide evidence as easily and as rapidly as seen on television. In selecting a jury panel, lawyers are aware that these television programs may influence jurors (called the CSI effect ) and the absence of expected evidence might work against the prosecutor in criminal cases. 

G.3.3.3 Liquid Crystal Displays (LCDs). Liquid crystalline polymers, first intro-dnced in Section 1.3.6.3, are ntilized for a different type of computer and television display, the liquid crystal display (LCD). Most of today s laptop computers and handheld devices ntilize color flat panel displays where the light transmission from the... 

Becanse fabrication costs show the potential for snbstantial reduction, and because amorphous silicon films are much more readily created in the form of large-area panels than are their crystalline counterparts, it is anticipated that amorphous devices may command a snbstantial share of the commercial market, once the necessary development stages have been accomplished. Already, devices snch as calcnlators, television sets, and tape recorders have been prodnced with amorphons silicon solar panels as the power source, and an experimental solar-powered honsing nnit has been constructed. 

Colloids hold a considerable potential for applications that are unusual in the classical sense. Most of us are familiar with imaging devices such as the picture tube in a television set. These tubes are bulky and consume large amounts of electrical power. There is, therefore, a large incentive to develop compact imaging devices, known as flat-panel devices, that are easily portable and have lower power requirements. (Displays based on liquid crystal technology fall in this class.)... 

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