Electrode Contact Structure Miniaturization via Merged Transparent Electrodes

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Solution Overview

Problem

The existing electrode contact structure configuration faces challenges in miniaturization due to the integration of three different electrodes, making it difficult to achieve a compact design.

Innovation Solution

The proposed electrode contact structure includes a layered configuration of inorganic insulating films and electrodes, where a third electrode covers a contact hole formed in the third and second inorganic insulating films to electrically connect with the first and second electrodes, allowing for a more compact layout by sharing a contact hole for multiple connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If three different electrodes are integrated with a transparent material, then the electrode contact structure can be formed, but it is difficult to miniaturize the structure

Engineering Contradiction:

Improveease of manufactureVSAvoidsize of electrode contact structure

Core Design Contradiction:

Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent merges the functions of three different electrodes into a single integrated electrode structure formed from one transparent conductive material layer. This consolidation reduces the number of separate components and their associated spacing requirements, enabling miniaturization while maintaining the electrical connectivity functions of all three electrodes.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The integrated electrode structure performs multiple functions simultaneously - serving as all three different electrodes required by the display device. This multi-functionality is achieved through a single transparent conductive material that can be patterned to provide the electrical connections of multiple electrodes, thereby reducing overall structure size.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If three different electrodes are integrated, then the electrode contact structure can function, but the structure size cannot be reduced further

Engineering Contradiction:

Improveelectrode connection reliabilityVSAvoidlength of electrode contact structure

Core Design Contradiction:

ReliabilityVSLength of stationary object

Solution Approach 1:

By combining three separate electrode functions into one integrated transparent conductive structure, the patent reduces the total length and spatial footprint of the electrode contact structure while ensuring reliable electrical connections through the continuous conductive material that provides all necessary connectivity paths.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11289563B2Electrode contact structure, display control driver, and display device

Publication Date: 2022.03.29 SHARP KK

AI summary

An electrode contact structure includes a first inorganic insulating film, a first electrode formed on the first inorganic insulating film, a second inorganic insulating film formed on the first inorganic insulating film and the first electrode to cover the first electrode, a second electrode formed on the second inorganic insulating film, a third inorganic insulating film formed on the second inorganic insulating film and the second electrode to cover the second electrode, and a third electrode configured to cover a contact hole formed in the third inorganic insulating film and the second inorganic insulating film, and electrically connect to each of the first electrode and the second electrode exposed in the contact hole.