CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority from and the benefit of Korean Patent Application No. 10-2018-0109298, filed on Sep. 12, 2018, and Korean Patent Application No. 10-2018-0129178, filed on Oct. 26, 2018, which are hereby incorporated by reference for all purposes as if fully set forth herein.

BACKGROUND

Field

Exemplary embodiments of the invention relate generally to an input sensing unit and a display apparatus including the same, and more specifically, to an input sensing unit having improved electrical reliability and a display apparatus including the same.

Discussion of the Background

Various electronic devices used in multimedia devices, such as televisions, mobile phones, table computers, navigation devices, and game consoles, are being developed. Such electronic devices may include a keyboard or a mouse as an input unit. The electronic devices may also include a display apparatus. Such a display apparatus includes a display unit as an output device and an input sensing unit as an input device.

The above information disclosed in this Background section is only for understanding of the background of the inventive concepts, and, therefore, it may contain information that does not constitute prior art.

SUMMARY

Exemplary embodiments of the present invention provide an input sensing unit having improved external input sensitivity and a display apparatus including the same.

Additional features of the inventive concepts will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the inventive concepts.

An exemplary embodiment of the inventive concept provides an input sensing unit including: a plurality of first electrodes arranged in a first direction and each of which extends in a second direction crossing the first direction and includes a plurality of first main patterns arranged in the second direction and a plurality of connection patterns disposed between the first main patterns to connect two first main patterns adjacent to each other; a plurality of second electrodes arranged in the second direction and each of which extends in the first direction and includes a plurality of second main patterns arranged in the first direction and a plurality of connection patterns disposed between the second main patterns to connect two second main patterns adjacent to each other; and a plurality of third electrodes arranged in the second direction, each of which extends in the first direction, and which receive an electrical signal that is different from that received by the second electrode. Each of the third electrodes includes: a plurality of third main patterns arranged in the first direction and spaced apart from the second sensing patterns in a plan view; and a plurality of connection patterns disposed between the third main patterns to connect two third main patterns adjacent to each other and spaced apart from the first connection patterns in a plan view.

The first connection patterns and the second connection patterns may be disposed on layers different from each other.

The third connection patterns and the first connection patterns may be disposed on the same layer.

The second main patterns and the third main patterns may be disposed on the same layer and spaced apart from each other in a plan view.

An opening may be defined in each of the second main patterns, and the third main patterns may be disposed in the openings, respectively.

The third connection patterns and the first main patterns may be disposed on layers different from each other.

Each of the third connection patterns may overlap at least a portion of the first electrodes in a plan view.

Each of the third main patterns may include: a central part; and a branch part connected to one side of the central part and protruding from the central part in the first direction, wherein each of the third connection patterns may be connected to the branch part.

The branch part may be provided in plurality to be respectively disposed on both sides of the central part.

The branch part may have a bar shape extending in the first direction.

The branch part may have a zigzag shape extending in the first direction.

The second connection patterns and the third connection patterns may have shapes different from each other.

Each of the third connection patterns may include a plurality of sub connection patterns arranged in the second direction and connected to the same third main pattern.

Each of the first connection patterns may be connected to each of the first main patterns to provide a single body.

Each of the first to third main patterns may include a plurality of mesh lines.

Each of the third connection patterns may extend along the mesh lines.

The first connection patterns and the third main patterns may not overlap each other.

The third connection patterns may overlap the first electrode and the second electrode in a plan view.

Each of the third electrodes may receive a ground voltage.

Another exemplary embodiment of the inventive concept provides a display apparatus including: a display unit including a plurality of pixels configured to display an image; and an input sensing unit disposed to overlap the pixels and including a first electrode, a second electrode, and a third electrode, which receive electrical signals different from each other, each of the first electrode, the second electrode, and the third electrode including: a plurality of main patterns arranged to be spaced apart from each other; and a plurality of connection patterns disposed between the main patterns to connect two main patterns adjacent to each other. The connection patterns of the third electrode and the connection patterns of the first electrode are spaced apart from each other in a plan view.

The connection patterns of the first electrode and the connection patterns of the third electrode may be disposed on the same layer.

The connection patterns of the first electrode and the main patterns of the first electrode may be disposed on layers different from each other, and the connection patterns of the third electrode and the main patterns of the third electrode may be disposed on layers different from each other.

The main patterns of the third electrode may be spaced apart from the main patterns of the first electrode in a plan view.

The connection patterns of the first electrode and the connection patterns of the second electrode may be disposed on layers different from each other.

The connection patterns of the first electrode and the connection patterns of the third electrode may overlap the main patterns of the first electrode in a plan view.

The main patterns of the second electrode and the main patterns of the third electrode may be arranged in the same direction.

A predetermined opening may be defined in each of the main patterns of the second electrode, and the main patterns of the third electrode may be disposed in the openings, respectively.

Each of the main patterns may include a plurality of mesh lines.

Each of the connection patterns of the third electrode may extend along the mesh lines.

Each of the pixels may include an organic light emitting element or a quantum dot light emitting element.

The third electrode may receive a ground voltage.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

