EL panel package film, production method thereof, and EL panel and LCD module using the package film

摘要

An EL panel package film comprises, for example, a PCTFE film or a PET film having a moistureproof layer. This EL panel package film has irregularities of 3 mum or more in arithmetic average roughness (Ra) and 10 mum or more in maximum height (Ry) specified in JIS G 0601 on at least one of its surfaces. The EL panel is configured by using the EL panel package film having such surface irregularities as a package film on at least a light emitting surface side. Oscillations produced due to the polarity inversion of an alternate voltage applied to the EL panel are absorbed and dispersed by the irregularities formed on the package film surface. A LCD module has such an EL panel as the backlight. Noise from the LCD cell surface is reduced.