Patent ID: 7964273

Claim:
A light reflecting sheet comprising: a light reflecting layer; and a base material sheet attached to the light reflecting layer; wherein the light reflecting layer comprises a polyester resin and 3 to 35 wt % of fillers dispersed within the polyester resin, the fillers including both inorganic and organic particles, the light reflecting layer having voids inside thereof with a void content in the range from 60 to 80% by volume, the base sheet consists of a single layer comprising: (A) a polycarbonate-based polymer; and (B) titanium oxide; wherein an amount of the titanium oxide (B) is from 10 to 50 parts by mass with respect to 100 parts by mass of a total amount of the polycarbonate-based polymer (A) and the titanium oxide (B); a Y-value of light reflectance of the light reflecting sheet is greater than a Y-value of the light reflecting layer, the Y-value of the light reflecting sheet is greater than a Y-value of the base material sheet, The Y-value of the light reflecting sheet is at least 100.5% and A light transmittance of the reflecting sheet is 0.4% or less as measured by irradiating the surface of the light-reflecting layer with light invisible region.