Patent ID: 11960667
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 10:
11. A display device, comprising:
a display unit comprising a plurality of emission areas;
a plurality of touch electrodes that sense a touch;
a plurality of code patterns formed in a preset code shape on partial areas of front surfaces of the plurality of touch electrodes;
a plurality of tilt sensing patterns comprising a light absorbent disposed in an inner area or a peripheral area of each of the plurality of code patterns; and
a main processor that receives detected image data corresponding to the plurality of tilt sensing patterns from a position input device, and determines arrangement direction information and tilt information of the position input device by comparing the detected image data with each other,
wherein the plurality of sensing patterns are formed by patterning a light blocking member including the light absorbent, and
the plurality of tilt sensing patterns comprise:
a first sensing pattern in which a content of the light absorbent included in the light blocking member is about 25%;
a second sensing pattern in which a content of the light absorbent included in the light blocking member is about 50%;
a third sensing pattern in which a content of the light absorbent included in the light blocking member is about 75%; and
a fourth sensing pattern in which a content of the light absorbent included in the light blocking member is about 100%.