Touch sensor and display device including the same
CN113672113BActive Publication Date: 2026-06-19SAMSUNG DISPLAY CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SAMSUNG DISPLAY CO LTD
- Filing Date
- 2021-03-17
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
The signal lines in existing touch sensors are tightly arranged, resulting in a gradual reduction in the signal line area, making it difficult to effectively accommodate an increase in the number of signal lines.
Method used
A multi-layer sensing line structure is adopted, in which the first metal layer and the second metal layer are set on different layers, alternately and overlapping. The resistance value is optimized by adjusting the width and thickness of the metal layers, so as to achieve effective arrangement of signal lines.
Benefits of technology
It effectively accommodates more signal lines within a limited space, optimizes the resistance distribution of the signal lines, and improves the performance of the touch sensor.
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Smart Images
Figure CN113672113B_ABST
Abstract
This application relates to touch sensors and display devices including touch sensors. The touch sensor includes a sensing electrode and multiple sensing lines. The sensing electrode receives touch input and is disposed on a sensing area of a substrate, while the multiple sensing lines are disposed on a non-sensing area of the substrate. Each of the multiple sensing lines includes a first region and a second region, and a first metal layer and a second metal layer electrically connected to the sensing electrode. A second metal layer is disposed on the first metal layer, and an insulating layer is disposed between the first metal layer and the second metal layer. The sensing lines include a first sensing line and a second sensing line. The first sensing line and the second sensing line include a first metal layer and a second metal layer located in the first region. The first sensing line includes a first metal layer but no second metal layer in the second region, and the second sensing line includes a second metal layer but no first metal layer in the second region.
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