City Pedia Web Search

Search results

1. Results From The WOW.Com Content Network

2. See-through display - Wikipedia

   en.wikipedia.org/wiki/See-through_display

   See-through display. An optical combiner for a see-through display. A see-through display or transparent display is an electronic display that allows the user to see what is shown on the screen while still being able to see through it. The main applications of this type of display are in head-up displays, augmented reality systems, digital ...

3. Liquid-crystal display - Wikipedia

   en.wikipedia.org/wiki/Liquid-crystal_display

   A liquid-crystal display ( LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly [ 1] but instead use a backlight or reflector to produce images in color or monochrome.

4. Digital on-screen graphic - Wikipedia

   en.wikipedia.org/wiki/Digital_on-screen_graphic

   Digital on-screen graphic. A digital on-screen graphic, digitally originated graphic ( DOG, bug, [ 1] network bug, or screenbug) is a watermark-like station logo that most television broadcasters overlay over a portion of the screen area of their programs to identify the channel. They are thus a form of permanent visual station identification ...

5. Projection clock - Wikipedia

   en.wikipedia.org/wiki/Projection_clock

   An LCD is integrated into some clocks to combine analogue and digital information on the projected image. Projectors used in projection clocks are similar to other projectors and use the same optical principles. They usually use lenses although some projectors use the principle of shadow theatre [dubious – discuss], vector or raster scanning .

6. Quartz clock - Wikipedia

   en.wikipedia.org/wiki/Quartz_clock

   Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks and watches are at least an order of magnitude more accurate than mechanical clocks. Generally, some form of digital logic ...

7. Digital clock - Wikipedia

   en.wikipedia.org/wiki/Digital_clock

   A digital clock displays the time digitally (i.e. in numerals or other symbols), as opposed to an analogue clock . Digital clocks are often associated with electronic drives, but the "digital" description refers only to the display, not to the drive mechanism. (Both analogue and digital clocks can be driven either mechanically or electronically ...