Disclosed herein is a color filter, which includes a first substrate, a patterned color, resist layer, a patterned passivation layer, an adhesive layer and a second substrate. The patterned color resist layer is disposed on the first substrate. The patterned passivation layer is stacked on the patterned color resist layer. The adhesive layer covers the patterned protective layer. The second substrate is disposed on the adhesive layer. A display device having the color filter is disclosed herein as well.