A touch display device comprising: multiple touch electrodes; and a touch sensing circuit configured to sense the multiple touch electrodes via touch lines, each connected to one touch electrode of the multiple touch electrodes, wherein: the multiple touch electrodes are arranged in a matrix type including rows and columns; the touch electrodes disposed in each touch electrode column comprise g touch electrode groups (TEG#A; TEG#B; TEG#C), each of which comprises k touch electrodes (A1-A5; B1-B5; C1-C5) in a touch electrode column, and k and g are natural numbers of 2 or greater; and wherein the touch sensing circuit is configured to, during a j-th frame for displaying an image, select, as sensing touch electrodes, the k touch electrodes (A1-A5) included in said touch electrode column in a first touch electrode group (TEG#A) among the g touch electrode groups (TEG#A; TEG#B; TEG#C), select, as reference touch electrodes, the k touch electrodes (B1-B5) included in said touch electrode column in a second touch electrode group (TEG#B) other than the first touch electrode group (TEG#A) among the g touch electrode groups (TEG#A; TEG#B; TEG#C), and match the k touch electrodes (A1-A5) included in the first touch electrode group (TEG#A) and the k touch electrodes (B1-B5) included in the second touch electrode group (TEG#B), so as to concurrently perform differential sensing, each between an i-th touch electrode (Ai) of said touch electrode column included in the first touch electrode group (TEG#A) and an i-th touch electrode (Bi) of said touch electrode column included in the second touch electrode group (TEG#B), wherein i is one of natural numbers from 1 to k. multiple touch electrodes; and a touch sensing circuit configured to sense the multiple touch electrodes via touch lines, each connected to one touch electrode of the multiple touch electrodes, wherein: the multiple touch electrodes are arranged in a matrix type including rows and columns; the touch electrodes disposed in each touch electrode column comprise g touch electrode groups (TEG#A; TEG#B; TEG#C), each of which comprises k touch electrodes (A1-A5; B1-B5; C1-C5) in a touch electrode column, and k and g are natural numbers of 2 or greater; and wherein the touch sensing circuit is configured to, during a j-th frame for displaying an image, select, as sensing touch electrodes, the k touch electrodes (A1-A5) included in said touch electrode column in a first touch electrode group (TEG#A) among the g touch electrode groups (TEG#A; TEG#B; TEG#C), select, as reference touch electrodes, the k touch electrodes (B1-B5) included in said touch electrode column in a second touch electrode group (TEG#B) other than the first touch electrode group (TEG#A) among the g touch electrode groups (TEG#A; TEG#B; TEG#C), and match the k touch electrodes (A1-A5) included in the first touch electrode group (TEG#A) and the k touch electrodes (B1-B5) included in the second touch electrode group (TEG#B), so as to concurrently perform differential sensing, each between an i-th touch electrode (Ai) of said touch electrode column included in the first touch electrode group (TEG#A) and an i-th touch electrode (Bi) of said touch electrode column included in the second touch electrode group (TEG#B), wherein i is one of natural numbers from 1 to k.