Back to results
US 2016/0035516 A1Published application
Keyboard backlight system
AssigneeDell Products L.P.
InventorsAndrew P. Tosh, Deeder M. Aurongzeb
Life of this patent
Estimating the term…
Abstract
Disclosed systems provide keyboard backlighting from organic light emitting diodes (OLEDs) placed under the keys. A keyboard stack optionally includes a light guide or reflector. A single OLED can illuminate multiple keys through a light guide. OLEDs used for backlighting may be arranged in a strip to illuminate more than one key. OLEDs can be deposited directly to the light guide or reflector, and can include a seal to promote air stability.
Claims19
A method for illuminating a keyboard, the method comprising:
- selectively energizing a first organic light emitting diode, wherein the first organic light emitting diode is:
- printed to a substrate;
- arranged substantially beneath the keyboard;
- positioned under a first key of the keyboard;
- and
- configured to primarily illuminate the first key when selectively energized.
3 more elements
(canceled)
A keyboard apparatus comprising:
- a key layer comprising keys for receiving user input;
- a switch layer comprising transducers for converting the user input to electrical signals;
- a first organic light emitting diode layer comprising a first set of organic light emitting diodes for providing light for the key layer;
- a light guide layer including at least one light guide for directing light from the first organic light emitting layer toward the key layer, wherein the first set of organic light emitting diodes are printed to the light guide.
1 more element
10-11. (canceled)
(canceled)
An apparatus comprising:
- a first set of keys;
- a first organic light emitting diode comprising a substantially transparent electrode layer, wherein the first organic light emitting diode is arranged to provide substantially white light through a first portion of the set of keys;
- and
- a reflector for directing light to the first portion of the set of keys, wherein the first organic light emitting diode is printed to the reflector and positioned under the first portion of the set of keys.
1 more element
(canceled)
Dependencies are inferred from the claim text.