Synchronized light emitting diode backlighting systems and methods for displays

A backlight system for a display screen that includes at least two arrays of a respective at least two different color picture elements, the backlight system comprising:

• at least two arrays of different color light sources that are configured to radiate light of a respective at least two different colors in a light path that impinges on the display screen to provide backlighting on the display screen;
• and
• a synchronizer that is configured to synchronously activate and deactivate at least a first one of the arrays of light sources and at least a first one of the arrays of color picture elements.

A method of increasing a color gamut of a display panel that includes a display screen comprising an array of Liquid Crystal Display (LCD) devices and at least two color filters thereon, and at least two arrays of Light Emitting Diode (LED) devices that are configured to radiate light of a respective at least two colors in a light path that impinges on the display screen to provide backlighting on the display screen, the method comprising:

• synchronously activating and deactivating at least a first one of the arrays of LED devices and at least a first one of the arrays of color picture elements.

A backlight system for a display screen that includes an array of at least two different color picture elements, the backlight system comprising:

• an array of pulsating Light Emitting Diode (LED) devices that are configured to radiate pulses of light in a light path that impinges on the display screen to provide backlighting on the display screen.

A method of reducing image degradation of a display panel that includes a display screen comprising an array of at least two different color picture elements and an array of Light Emitting Diode (LED) devices that are configured to radiate light in a light path that impinges on the display screen to provide backlighting on the display screen, the method comprising:

• pulsing the array of LED devices to radiate pulses of light in the light path that impinges on the display screen to provide pulsed backlighting on the display screen.