Patent ID: 11934618
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 15:
16. A touch input system, comprising:
a display device for displaying an image; and
a touch input device for entering a touch input to the display device,
wherein
the display device comprises:
a display unit comprising a plurality of emission areas that emit light; and
a plurality of touch electrodes disposed on the display unit to detect the touch input,

at least some of the touch electrodes include a code pattern part comprising a plurality of code patterns having cutouts corresponding to location information, and
the touch input device is configured to capture an image of the code patterns, convert the code patterns into predefined data codes, and transmit coordinate data that consists of the data codes to the display device,
wherein the touch electrodes are formed in a mesh shape in a plan view and surround at least one of the emission areas,
wherein the code pattern part further comprises:
a reference point, which is used to identify the code pattern part, wherein the reference point corresponds to an area between intersecting first and second touch electrodes, the area including a first cut between first and second parts of the first touch electrode that protrude towards and face each other and a second cut between third and fourth parts of the second touch electrode that protrude towards and face each other, wherein ends of the first and second parts at the first cut are not connected to each other and ends of the third and fourth parts at the second cut are not connected to each other;
a first reference line extending from the reference point along a plurality of intersection points of the touch electrode that are arranged in a first direction; and
a second reference line defined by connecting a plurality of intersection points and a cutout part, the intersection points disposed in a second direction intersecting the first direction from the reference point, the cutout part being disposed between the intersection points,
the code patterns are disposed in an area defined by the first and second reference lines, the area including a plurality of rows and a plurality of columns,
the touch touch electrodes are not physically connected to each other in the reference point, and
the reference point and the cutout part of the second reference line have the same shape.