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Lenovo later started to include backlit keyboards, and some models included both the ThinkLight and a backlit keyboard. For those models, the Fn-Space shortcut is also used in conjunction to control a backlit keyboard (if the laptop has it). The on-screen display of ThinkPad computers will display a light on and a light off indicator.
Subnotebooks relative to other laptop marketing terms Type Screen size Weight Distinguishing Characteristics CPU type(s) Years of production Classic subnotebook 5-12" 0.9-1.8 kg Varies, mostly x86 1992-2018 (worldwide)/ 2018-current (Asia only) [4] [5] Palmtop/handheld: 5-9" 0.3-0.8 kg Size, and miniaturized keyboard Varies, typically ultra-low ...
It-Alt + FN is typically found on laptops due to their keyboard size restrictions. It is also found on many full-sized "multimedia" keyboards as the F-Lock key. It is mainly for the purpose of changing display or audio settings quickly, such as brightness, contrast, or volume, and is held down in conjunction with the Caps Lock to change the ...
In October 2008, Apple announced that it would be using LED backlights for all of its notebooks and new 24-inch Apple Cinema Display, and one year later it introduced a new LED iMac, meaning all of Apple's new computer screens became LED-backlit displays. Almost every laptop with a 16:9 display introduced since September 2009 uses LED-backlit ...
Keyboard Shortcut; Toggles Play and Pause Enter: Play/Pause but also stops page scrolling Space: If in fullscreen, takes back to the normal screen Esc: Seeks forward 5 seconds Left arrow: Seeks backward 5 seconds Right arrow: Increase volume by 5% of the maximum Up arrow: Decrease volume by 5% of the maximum Down arrow: Enters or exits ...
LED backlights are often dimmed by applying pulse-width modulation to the supply current, switching the backlight off and on more quickly than the eye can perceive. If the dimming-pulse frequency is too low or the user is sensitive to flicker, this may cause discomfort and eyestrain similar to the flicker of CRT displays at lower refresh rates ...
The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way. The keyboard driver also tracks the shift, alt and control state of the keyboard.
For example, a character positive LCD with a backlight has black lettering on a background that is the color of the backlight, and a character negative LCD has a black background with the letters being of the same color as the backlight. LCDs are not subject to screen burn-in like on CRTs.