Display Panel Side-Surface Connections for Stable Signal Transmission
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Solution Overview
Problem
The challenge of minimizing the bezel area in display devices by electrically connecting the display panel and panel driver on the side surface, while ensuring stable and efficient signal transmission and reducing connection failures between adjacent driving units.
Innovation Solution
A display device design featuring connection parts that penetrate through the substrate from the upper surface to the lower surface and protrude to the side surface, electrically connecting with driving units, allowing for signal transfer without direct connection between first and second driving units, and utilizing multiple connection parts to stabilize signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the display panel and panel driver are electrically connected on the upper surface, then the connection is stable and easy to manufacture, but the bezel area increases
Solution Approach 1:
The patent transitions the connection location from the upper surface (2D plane) to the side surface (different spatial dimension), allowing the display panel and panel driver to be connected without increasing the bezel area. The connection part extends through the substrate thickness direction to achieve this dimensional shift.
Solution Approach 2:
The connection part is embedded within the substrate structure, with the first connection part penetrating through the substrate and the second connection part protruding to contact the driving unit. This nesting approach allows the connection mechanism to be integrated within the existing device structure without adding external complexity.
2Area of stationary object
If multiple driving units are connected through connection parts, then the bezel area is minimized, but connection failures may occur between adjacent driving units
Solution Approach 1:
The connection system is divided into separate first connection parts and second connection parts, with each connection part independently connecting to specific driving units. This segmentation isolates potential connection failures to individual segments rather than affecting the entire connection system.
Solution Approach 2:
The connection part acts as an intermediary component between the display panel and driving units, providing a reliable transmission path. The first connection part penetrates through the substrate while the second connection part protrudes to contact the driving unit, ensuring stable signal transmission without direct connection between adjacent driving units.
3Reliability
If connection parts protrude to the side surface, then electrical connection with driving units is achieved, but the structure becomes more complex
Solution Approach 1:
The connection part utilizes the thickness direction of the substrate to achieve penetration and protrusion, transforming a potentially complex 2D connection problem into a simpler 3D structure. By extending into the depth dimension, the connection part can contact driving units on the side surface without requiring complex lateral routing.
Data Source
AI summary
A display device in one example includes a first connection part penetrating from an upper surface of the substrate to a lower surface of the substrate, and a second connection part protruding from the first connection portion to a side surface of the substrate. The second connection part is electrically connected with a driving unit. In addition, each of a plurality of lines is electrically connected with one of first and second driving units and is not electrically connected with the other one of the first and second driving units by a connection part.