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A slim direct lit backlight concept aimed at large size, narrow bezel displays is presented here.
We demonstrate an optimal masking design of the led hot spot for a thin light guide plate in the direct lit architecture.
It offers a combined design alternative in direct lit systems by circumventing hot spots and thermal expansion issues for large size displays while keeping the light guide plate thickness below 4 mm.
A direct lit Q70 range is a particularly enticing prospect if Samsung can get the pricing right.
Direct lit concepts supporting 2-D dimming provide higher contrast ratios.
Similar(55)
direct-lit LED backlight module is constructed for experimental verification.
In order to prove the claims, a slim direct-lit LED backlighting with DHR equal to 4 is designed.
To address this angle-dependent characteristic in a direct-lit LED backlight, a freeform lens is designed to deflect the light emitted from an LED into the incident angle range with high transmission efficiency.
In this paper, in a direct-lit light-emitting diode (LED) backlight, where an LED array is placed under the display panel, the transmission efficiency against the prism film(s) is investigated for incident light with different zenith and azimuth incident angles.
The 2018 direct-lit Samsung QLED in action.
Samsung's new direct-lit QLED on the left, and a 2017 OLED on the right.
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