Texture gradient for uniform light output from a transparent backlight

• Main Authors: ETIENNE, MICHAEL, TANDIA, ADAMA, ZAKHARIAN, ARAMAIS ROBERT, ROUDAS, IOANNIS GEORGIOS
• Format: Patent
• Language: Chinese; English
• Published: 16.10.2016
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A light diffusing component and a method of making is disclosed. The light diffusing component may include a substrate sheet and at least one scattering layer. The substrate sheet may have a back side and an edge. The edge may be configured to receive a light source. The at least one scattering layer may have a plurality of light scattering centers etched into at least a portion of the back side of the glass sheet. The scattering centers may have an increased density as the distance from the edge increases. The scattering centers may have a diameter of less than about 30 microns, a maximum depth of about 10 micron or less, and a roughness between about 0.5 nm to about 100 nm, for example.