Input Sensing Part With Extended Lines Reducing Inactive Area
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Solution Overview
Problem
The existing display devices with input sensing parts have a large inactive area due to the arrangement of sensing lines, which increases the size of the device and may not be optimal for compact designs.
Innovation Solution
The input sensing part is designed with first and second sensing electrodes in the active area and sensing lines in the inactive area, where the first sensing lines extend into the active area without intersecting the inactive area, reducing the inactive area's size by eliminating the need for additional space for the first sensing lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sensing lines are arranged in the inactive area, then the sensing function is achieved, but the inactive area increases
Solution Approach 1:
The first sensing lines extend from the inactive area into the active area, utilizing the vertical dimension and overlapping regions to achieve connection. This allows the sensing lines to function while occupying less horizontal space in the inactive area, effectively reducing the footprint required for sensing line arrangement.
Solution Approach 2:
The first sensing electrodes and first sensing lines are merged into an integrated structure where the sensing lines extend into the active area and connect to sensing electrodes through overlapping portions. This merging eliminates the need for separate dedicated spaces for both components, reducing the overall inactive area.
2Area of stationary object
If the inactive area is reduced, then the device size is minimized, but the arrangement space for sensing lines is limited
Solution Approach 1:
By allowing sensing lines to extend into the active area and utilize overlapping portions with sensing electrodes, the patent creates a three-dimensional arrangement that reduces the two-dimensional footprint in the inactive area while maintaining proper sensing line connectivity and function.
Solution Approach 2:
The sensing lines are segmented into portions that extend into the active area and portions that remain in the inactive area, allowing flexible arrangement and connection to multiple sensing electrodes without requiring a large continuous inactive area.
Data Source
AI summary
An input sensing part includes: a plurality of first sensing electrodes in an active area; a plurality of second sensing electrodes in the active area and adjacent to the first sensing electrodes; a plurality of first sensing lines in an inactive area around the active area, extending to the active area, and connected to the first sensing electrodes via portions of the first and second sensing electrodes in a plan view; and a plurality of second sensing lines in the inactive area and extending from the second sensing electrodes.