Diagonal Link Lines for Narrow Bezel Display Panels
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Solution Overview
Problem
Existing display devices face limitations in design due to the large non-display area, which increases the bezel size, restricting the ability to achieve a narrow bezel design and reducing the space between the display area and the pad area.
Innovation Solution
The display device incorporates a signal transmission structure where two or more signal lines are arranged in a column direction in the display area, with link lines extending diagonally in the non-display area and pads connected to these link lines, allowing for a reduced bezel size and smaller non-display area by optimizing the arrangement of pads and link lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If link lines are arranged horizontally in the non-display area, then signal transmission is achieved, but the non-display area size increases
Solution Approach 1:
The link lines are arranged diagonally instead of horizontally, utilizing the diagonal dimension in the non-display area to reduce the horizontal space required. This dimensional change allows the same signal transmission function to be achieved with a smaller non-display area footprint.
Solution Approach 2:
The pad structure is divided into asymmetric portions (first pad portion and second pad portion) with different functions and positions. The first pad portion connects to link lines while the second pad portion extends in the column direction, creating an asymmetric layout that optimizes space utilization and reduces the overall non-display area.
2Length of moving object
If pads are arranged in a traditional layout, then electrical connection is established, but the space between display area and pad area increases
Solution Approach 1:
The link lines extend diagonally rather than horizontally, utilizing the diagonal dimension to bridge the gap between the display area and pad area more efficiently. This reduces the horizontal space required while maintaining electrical connection reliability.
Solution Approach 2:
Each pad is segmented into multiple portions (first pad portion and second pad portion) with distinct functions. The first pad portion establishes electrical connection with link lines while the second pad portion extends toward the display area, allowing optimized spatial arrangement that reduces the space between display and pad areas while maintaining connection reliability.
3Shape
If the non-display area is reduced, then narrow bezel design is enabled, but the arrangement of signal lines and pads becomes more constrained
Solution Approach 1:
By arranging link lines diagonally instead of horizontally, the invention utilizes the diagonal dimension to accommodate signal transmission within a smaller non-display area, enabling narrow bezel design without significantly increasing arrangement complexity.
Solution Approach 2:
The asymmetric pad structure with different portions serving different functions allows flexible arrangement that adapts to the constrained non-display area, enabling narrow bezel design while maintaining manageable signal line arrangement complexity.
Data Source
AI summary
A display panel and a display device having the display panel are provided. The display panel includes two or more signal lines arranged in a column direction in a display area, two or more link lines arranged in a non-display area to be electrically connected to the two or more signal lines or to extend from the two or more signal lines, and two or more pads arranged in the non-display area to be electrically connected to the two or more link lines, and at least one of the two or more link lines extends in a diagonal direction in a pad area in which the two or more pads are located. Accordingly, it is possible to decrease the size of the non-display area to enable a narrow bezel design.