Patterned glass light guide and display device comprising the same

Abstract

Disclosed herein are glass light guides comprising a first surface, an opposing second surface, and at least one edge, wherein the first surface is patterned with a plurality of color converting elements, and wherein the second surface is optionally patterned with a plurality of light extraction features and / or color converting elements. Also disclosed herein are display devices comprising such glass light guides. The display devices may further comprise a thin-film transistor (TFT) having a coefficient of thermal expansion (CTE) substantially similar to the CTE of the glass light guide.

Description

[0001] This application claims the benefit of priority to US Application No. 62 / 010093, filed June 10, 2014, the contents of which are hereby incorporated by reference in their entirety. technical field [0002] The present disclosure relates generally to glass lightguides and display devices including such lightguides, and more particularly, to patterned glass lightguides and display devices including the patterned glass lightguides. Background technique [0003] Liquid crystal displays (LCDs) are commonly used in various electronic devices, such as mobile phones, laptop computers, electronic tablets, televisions, and computer monitors. However, LCDs may be limited in brightness, contrast, efficiency, and viewing angle compared to other display devices. For example, to compete with organic light emitting diode (OLED) technology, higher contrast, color gamut, and brightness are required in conventional LCDs, while also balancing power requirements, eg, in the case of handhel...

AI Technical Summary

Problems solved by technology

However, the required alignment tolerances between the three-dimensional light extraction features on the patterned light guide and the LCD thin-film transistors (TFTs) are very tight, thus limiting the use of such patterned light guides in commercial applications.

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