TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The ultraviolet absorber is chosen from 4,6-dibenzoylresorcinol, silylated 4,6-dibenzoylresorcinol and/or 2,4-diphenyl-6-(2'-hydroxy-4'alkoxyphenyl)-l,3,5-triazine. The protective weathering layer comprises triazine of formula (I) and dibenzoylresorcinol of formula (II) or (III). The content of ultraviolet absorber is 2.5 weight% or more, based on total content of the protective weathering layer.R1=H;R2, R3=H, 1-12C aliphatic group, 3-12C cycloaliphatic group or aromatic group, preferably H;R4=H, 1-24C aliphatic group or 3-24C cycloaliphatic group, preferably CH2CH2OOCC7H15;R5=H, 1-12C aliphatic group, 3-12C cycloaliphatic group or CH2CH2CH2SiRn(OR8)3n;n=0-2;R8=H or 1-12C aliphatic group;R6, R7=R2, R3;andR9, R10, R11, R12=H, 1-12C aliphatic group, 3-12C cycloaliphatic group or aromatic group.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The protective weathering layer comprises a block copolymer comprising polycarbonate and resorcinol polyarylate, polycarbonate, ultraviolet absorber (5 weight% or more), matrix chosen from silicone, poly(meth)acrylate and/or polycarbonate, ultraviolet-cured acrylic-colloidal silica coating layer, barrier coating layer (20) comprising zone(s) substantially having organic composition and zone(s) substantially having inorganic composition, planarizing layer chosen from epoxy-based resin, acrylic-based resin and/or silicone resin, primer layer (14) provided between the weathering layer and substrate, and adhesive layer (22) provided between the optoelectronic device and substrate. The resorcinol polyarylate block content of block copolymer is 80 weight% or more, or 40 weight% or less. The transparent thermoplastic substrate comprises bisphenol-A polycarbonate homopolymer and polycarbonate copolymer. The polycarbonate copolymer is chosen from copolymer of tetrabromobisphenol-A carbonate and bisphenol-A carbonate, copolymer of 2-phenyl-3,3-bis(4-hydroxyphenyl) phthalimidine carbonate and bisphenol-A carbonate, copolymer of 4,4'-(l-phenylethylidene) biphenol carbonate and bisphenol-A carbonate and/or copolymer of 4,4'-(l-methylethylidene) bis(2,6-dimethyl-phenol) carbonate and bisphenol-A carbonate. Preferred Properties: The transparent thermoplastic substrate has thermal shrinkage ratio of 1% or less, along both extrusion direction and cross-web direction, at 150 degrees C for 30 minutes. The planarizing layer has thickness of 1 nm-100 mu m. The protective weathering layer has engineered surface texture (30) on a side of protective weathering layer opposite the substrate. The engineered surface texture is chosen from several of lenses, microlenses, linear prisms, prisms, pyramids and/or lenticular structures.