Display Device Lead Routing Inversion for Narrow Frame
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge is to design a display device with a larger display area while minimizing the frame size, as increasing the display area without altering the device size necessitates narrowing the frame, which is difficult due to the limitations in lead routing and panel configuration.
Innovation Solution
The solution involves optimizing the lead routing by drawing leads from the lower ends of pads instead of upper ends, allowing for a reduction in the height required for lead placement, thereby extending the display area and minimizing the frame size. This configuration includes a display panel with a scanning line, terminals, and leads arranged in a specific pattern to accommodate a larger display area within the same device dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If leads are drawn from the upper ends of pads, then the connection is straightforward, but the height required for lead placement increases, reducing the display area
Solution Approach 1:
The patent inverts the conventional lead routing approach by drawing leads from the lower ends of pads instead of the upper ends. This inversion allows leads to be positioned in the lower region of the non-display area, reducing the height required for lead placement and thereby extending the display area while maintaining the same device dimensions.
2Area of moving object
If the display area is made large without changing the device size, then the display capability is improved, but the frame needs to be narrowed which is difficult due to lead routing limitations
Solution Approach 1:
By inverting the lead routing direction from upper-end to lower-end, the patent simplifies the overall layout and reduces the height occupation of leads, enabling a narrower frame and larger display area without increasing device complexity
Solution Approach 2:
The patent utilizes the vertical dimension more efficiently by positioning leads at the lower ends of pads, optimizing the spatial arrangement and allowing for a narrower frame width while maintaining proper lead connections
Data Source
AI summary
According to one embodiment, a display device includes an insulating substrate, a first insulating film, terminal portions and a pattern. The first insulating film covers the insulating substrate. The terminal portions are disposed on the first insulating film. The pattern is between the insulating substrate and the first insulating film. The pattern is formed by a semiconductor or a light-shielding material, and the pattern is covered with the first insulating film. The pattern is located just under a first terminal and a second terminal of the terminal portions.