We report on a monitor‐sized, thin, dimensionally and thermally stable mini‐LED backlight enabled by a patterned glass diffuser (PGD). Our backlight has a luminance of between 0.9 × and 1.05 × compared to a reference mini‐LED backlight using a thick diffuser plate, while providing a better local dimming control and comparable zone and panel luminance uniformity and color uniformity. The PGD technology can reduce the number of LEDs.

We report on the design and performance of a direct‐lit LCD backlight prototype which is only 5 mm thick and capable of full array 2D local dimming. Equipped with a 15.6” LC display panel, the prototype reaches peak brightness of 2000 nits. The measured contrast numbers meet VESA DisplayHDR 600 specification.

We report on an ultra-thin 2D local dimming backlight, as thin as an edge-lit backlight, yet as capable of 2D local dimming as a direct-lit backlight. It includes a patterned holey glass light guide plate (LGP) and a patterned reflector. Light from LEDs, located in holes, is edge-coupled into the LGP. Author KeywordsBacklight; High dynamic range; Local dimming; 2D local dimming 14-1 / X.-D. Mi

We report our progress on a monitor‐sized, dimensionally and thermally stable mini‐LED backlight enabled by a patterned glass diffuser (PGD). Our backlight uses 5,000+ fewer mini‐LEDs per monitor — 4/9 times that in a reference mini‐LED backlight relying on a thicker diffuser plate, while it is thinner and achieves similar uniformity and luminance compared to the reference mini‐LED backlight.

We report on a backlight that can be bent to a radius of 200 mm and provides more than 2000 nits through a 7” display. The backlight is enabled by a glass light guide plate that edge‐couples light from high brightness thin LEDs. It is also capable of 2D local dimming.