I do not display slides, but the display of the RX100 is not sunk or protected by a raised frame and so found it after a few days use (cameras I regard as commodities and not as raw eggs) first small scratch / abrasion in the display coating the RX100. This screen film is perfect, easy to apply without bubbles, has a matte finish - probably to reduce reflections - which, however minimally impaired visual brilliance and resolution of the display in direct comparison. For half a point deduction. The film is also not hard-coated (still half a point deduction), but starts from scratch (tested with pen and curved up paper clip), which would otherwise end up in the display coating. And after all three protectors are the same delivered, the price / performance ratio fits so.
For the RX100 there is a single hard-coated protective film, which costs three times. Since I can not compare my rating for this flexible film is to be considered a purely subjective, comparing the RX100 with and without display film without competition protectors.