| 摘要 |
PROBLEM TO BE SOLVED: To provide a glass plate for a light guide plate, capable of suppressing luminance deterioration, reducing luminance unevenness and suppressing interference fringe.SOLUTION: In a glass plate for a light guide plate, an absorption coefficient of light with a wavelength of 550 nm is 1 mor less; a ratio α/αof a maximum value α(m) of an absorption coefficient of light within a wavelength range of 400-780 nm and a minimum value α(m) is 10 or less; a haze value is 1.5% or less; and an arithmetic average roughness Ra of a light emission surface is 1 nm or more and 20 nm or less.SELECTED DRAWING: Figure 1 |
