Patent ID: 8564739
Filing Date: 2013-10-22
Classification: G02B,G02F

Abstract:
1. A liquid crystal display (LCD) system comprising: a) a LCD panel having a field of view; b) at least one waveguide element positioned behind the LCD panel, wherein the at least one waveguide element comprises a major surface arranged to transmit light toward the LCD panel, a plurality of edges bounding the major surface, and at least one first light entry region, wherein the at least one first light entry region comprises at least one extension of the at least one waveguide element that is non-coplanar with the major surface; c) at least one first light-emitting source positioned to emit light into the at least one waveguide element at the at least one first light entry region; and d) at least one second light-emitting source comprising a plurality of LEDs that are positioned coincident with the field of view to emit direct backlight onto the LCD panel; wherein the LCD system comprises at least one of the following features (i) and (ii): wherein the LCD system further comprises one of the following features (A), (B), or (C):