The invention provides a computer-generated hologram which can be viewed in white at the desired viewing region and a reflective liquid crystal display using the same as a reflector. The computer-generated hologram H is designed to diffuse light having a given reference wavelength .lamda..sub.STD and incident thereon at a given angle of incidence .theta. in a specific angle range. In a range of wavelengths .lamda..sub.min to .lamda..sub.max including the reference wavelength .lamda..sub.STD wherein zero-order transmission light or zero-order reflection light of incident light on the computer-generated hologram at a given angle of incidence is seen in white by additive color mixing, the maximum diffraction angle .beta..sub.2MIN of incident light of the minimum wavelength .lamda..sub.MIN in the wavelength range and incident at the angle of incidence .theta. is larger than the minimum diffraction angle .beta..sub.1MAX of incident light of the maximum wavelength .lamda..sub.MAX in the wavelength range and incident at said angle of incidence .theta..