Patent ID: 8582198

Claim:
An information display panel, in which display media are sealed in a space between the substrates wherein a transparent substrate at an observation side and a rear substrate which is not necessary to be transparent are disposed oppositely, and, in which the displayed color information can be identified through color filters each having respective colors arranged on the transparent substrate at the observation side by using a light incident from the observation side, which is reflected by the display media as a reflection light, characterized in that: said color filters each having respective colors are arranged to an outer surface of a transparent substrate at an observation side having a refractive index n and a thickness d, in such a manner that an overlap area between the color filter and the pixel is set in a range of 50%-100% with respect to an area of the pixel, so that a portion between adjacent color filters having different colors, which is perpendicular to a tilt visual direction, is spaced at either one of an upper and lower sides and a right and left sides of the color filter; and a relation between a visual filed displacement I indicated by following formula (1), which is generated when the image displayed by the display media is viewed as a reflected light refracted at 45° with respect to a surface of the color filter, and LS and DS denoting a pixel pitch and a pixel space along a visual direction respectively, satisfies I≦0.5×(DS+LS); I=d ×[sin 2 θ/( n 2 −sin 2 θ)] 1/2 θ=45° formula (1).