| 摘要 |
PROBLEM TO BE SOLVED: To provide a light guide sheet capable of suppressing luminance unevenness of a liquid crystal display surface and allowed to be thinned when being used for an edge light type backlight unit of a liquid crystal display device, and to provide the edge light type backlight unit and a laptop computer including the light guide sheet.SOLUTION: The light guide sheet includes a transparent light guide layer containing polycarbonate resin or acrylic resin as a main component and a reflection layer formed on the rear side of the light guide layer and has average thickness of 600 μm or less. In the light guide sheet, the average thickness of the reflection layer is preferably 10 to 100 μm. In the light guide sheet, the reflection layer preferably includes a matrix containing polycarbonate resin or acrylic resin as a main component and white pigment contained in the matrix. In the light guide sheet, the light guide layer and the reflection layer are preferably formed by a co-extrusion molding method. |
