An in-cell touch panel and a display device are provided. The in-cell touch panel includes an array substrate (100) and a counter substrate (200), with a black matrix pattern (210) provided on the array substrate (100) or the counter substrate (200). A common electrode layer (110) of the array substrate (100) includes a plurality of first touch electrodes (111) and a plurality of common electrodes (112) that are insulated from each other; the counter substrate (200) comprises a plurality of second touch electrodes (220), projections of the second touch electrodes (220) on the array substrate (100) lie within regions where the common electrodes (112) are located. Regions of the first touch electrodes (111) corresponding to the black matrix pattern (210) protrude toward the counter substrate (200) entirely or in part, and/or regions of the second touch electrodes (220) corresponding to the black matrix pattern (210) protrude toward the array substrate (100) entirely or in part. With the touch panel, the sensitivity of touch can be enhanced.