Texture gradient for uniform light output from a transparent backlight

• Main Authors: ZAKHARIAN ARAMAIS ROBERT, ROUDAS IOANNIS GEORGIOS, ETIENNE MICHAEL, TANDIA ADAMA
• Format: Patent
• Language: Chinese; English
• Published: 02.03.2018
• 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 sideand 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. 公开了种光漫射部件和制备方法。光漫射部件可以包括基底片和至少个散射层。基底片可具有背侧和边缘。该边缘可以被配置为接收光源。该至少个散射层可以具有蚀刻到玻璃片的背侧的至少部分中的多个光散射中心。散射中心可具有随着离开边缘的距离增加而增加的密度。例如，散射中心可以具有小于约30微米的直径，约10微米或更小的最大深度，以及约0.5nm至约100nm的粗糙度。