[Quoth]

It looks like the RGB filter has 1/2 width colours so that each cell is 1/2 clear and 1/2 R or G or B. Thus 300 x 300 in mono, with less loss of brightness than a full per subpixel filter and 100 x 300 in colour, but all colours are pastel, desaturated by about 50%. An interesting compromise that suits comics.

The 1/2 pixel width colour fringing on high contrast edges will be hardly visible and wouldn't affect text. LCD and OLED already use subpixel addressing to deliberately add colour fringing to increase text resolution. This does similar, partly in the physical structure.