Electro-optical Panel Terminal Arrangement for Compact Display Design
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Solution Overview
Problem
High-resolution electro-optical devices face challenges in miniaturization due to increased terminal and circuit complexities, leading to larger non-display areas and device sizes, particularly when using high-performance ICs for driving pixels.
Innovation Solution
The electro-optical panel design incorporates a circuit area with two terminal areas arranged side-by-side, where wires from these areas extend outside to reach the circuit area, optimizing terminal arrangements and power supply connections to reduce the device's width and prevent size increases, while ensuring reliable power supply and fault resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to realize high resolution, then the display resolution is improved, but the terminal arrangement area becomes insufficient
Solution Approach 1:
The patent transitions from a conventional single-side terminal arrangement to a multi-side terminal arrangement, utilizing both the left and right sides of the panel for terminal groups. This dimensional expansion of the terminal arrangement space allows sufficient terminal accommodation even when the number of pixels is increased for high resolution display.
2Productivity
If high-performance ICs are used to drive each pixel, then the driving performance is improved, but heat generation and cost increase
Solution Approach 1:
The patent divides the terminal arrangement into multiple terminal groups located on different sides of the panel. This segmentation distributes the electrical connections and reduces the concentration of current flow in a single area, thereby reducing localized heat generation while maintaining the driving performance required for high-resolution displays.
3Area of stationary object
If terminal groups are arranged on multiple sides of the panel, then the terminal arrangement area is ensured, but the device complexity increases
Solution Approach 1:
The patent employs asymmetric terminal group arrangements where terminal groups are strategically placed on different sides of the panel with different configurations. For example, one side may have a denser terminal group while the other has a sparser arrangement, optimizing the use of available space and reducing wiring complexity compared to symmetric arrangements.
4Length of stationary object
If the non-display area including terminal groups and wiring areas is reduced, then the device size is minimized, but the terminal connection reliability may be compromised
Solution Approach 1:
The patent incorporates alignment marks and positioning structures in advance during the panel manufacturing process. These preliminary features ensure that terminal groups are accurately positioned and connected even when the non-display area is minimized, thereby maintaining terminal connection reliability while achieving compact device dimensions.
Data Source
AI summary
Provided is an electro-optical panel including a first area in which a circuit is formed and a first terminal area and a second terminal area that are arranged side-by-side in a Y direction when viewed from the first area. The first terminal area and the second terminal area are each provided with a terminal group including a plurality of terminals arranged in an X direction different from the Y direction, and at least one of wires from the first terminal area to the first area and from the second terminal area to the first area extends from between the first terminal area and the second terminal area and reaches the first area through an area outside of the first terminal area when viewed from a central axis of the electro-optical panel extending in the Y direction.