Input Sensor Wiring Layout to Hide Display Signal Lines
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Solution Overview
Problem
Existing display devices suffer from visual recognition of wiring or signal lines, which can detract from the aesthetic appeal and user experience.
Innovation Solution
A display device with an input detection sensor that incorporates a specific laminate structure including a display panel, input sensing layer, and window layer, designed to minimize the visibility of signal lines and enhance the visual appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If signal lines are arranged in a conventional straight pattern, then wiring is easily manufactured, but visual recognition of wiring occurs affecting aesthetic appeal
Solution Approach 1:
The signal lines are designed with bent parts instead of straight lines. Specifically, the signal lines include first bent parts extending in a first direction and second bent parts extending in a second direction intersecting the first direction, creating a grid-like pattern that is less visually noticeable and improves aesthetic appearance while maintaining manufacturability
Solution Approach 2:
The wiring pattern is transformed from a simple linear arrangement to a two-dimensional grid structure with bent parts extending in multiple directions. This dimensional transformation allows the wiring to be less visually prominent while still connecting the necessary components
2Shape
If signal lines are bent to reduce visual recognition, then aesthetic appeal is improved, but sensing sensitivity may be affected
Solution Approach 1:
Different portions of the signal lines have different characteristics. The bent parts are strategically positioned in specific regions while maintaining appropriate line widths and spacing in sensing-critical areas. The first and second bent parts extend in different directions to optimize both visual appearance and sensing performance in different local regions
Solution Approach 2:
The signal line structure combines multiple segments with different orientations (first bent parts and second bent parts extending in intersecting directions) to create a composite wiring pattern that simultaneously achieves aesthetic goals and maintains electrical performance for sensing
3Area of stationary object
If electrodes are arranged densely to improve sensing coverage, then sensing region is expanded, but wiring complexity increases
Solution Approach 1:
The electrode structure is divided into multiple groups: first electrodes extending in a first direction, second electrodes extending in a second direction intersecting the first direction, third electrodes extending in a third direction, and fourth electrodes extending in a fourth direction intersecting the third direction. This segmentation allows comprehensive sensing coverage while organizing the wiring into manageable, systematic groups
Solution Approach 2:
The intersecting electrode arrangements serve multiple functions simultaneously: they create a grid pattern for enhanced sensing coverage, provide systematic wiring paths for signal transmission, and form a structured layout that balances complexity with functionality across the display device
Data Source
Figure 1
Figure 2A~2B
Figure 2C~2D
AI summary
A display device including a window having a light shielding region and a transmission region, a display panel disposed under the window, and an input detection sensor disposed therebetween and including first electrodes, second electrodes, first signal lines connected to one ends of the first electrodes, second signal lines connected to one ends of the second electrodes, and third signal lines connected to the other ends of the second electrodes. Each of first to nth first signal lines includes bent parts bent multiple times, resistances of the bent parts decrease in a first direction, the first to nth first signal lines are connected to the first electrodes that are arranged farther away from the bent parts in the first direction, and the bent parts of the first to nth first signal lines overlap the light shielding region.