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67.1: A Monolithic Block‐Wise Functional Light Guide for 2‐D Dimming LCD Backlight
Author(s) -
Käläntär Kälil,
Okada Masafumi
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3500654
Subject(s) - backlight , light guide , crosstalk , optics , materials science , liquid crystal display , diagonal , optoelectronics , light source , physics , mathematics , geometry
To achieve a thin backlight unit for 2‐D dimmable display, a 85.81mm‐diagonal monolithic block‐wise functional light‐guide plate has been developed using louver prisms for extracting light, round prisms for shaping light cone, and recessed graded height U‐grooves as semi‐partitions between consecutive blocks for controlling crosstalk. By using the monolithic light‐guide plate, the crosstalk is suppressed to 20% and 5% at the centers of the first and second neighboring blocks, respectively.