Oxide Semiconductor Drive Circuit Capacitor Integration

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Solution Overview

Problem

Existing display panels face challenges in manufacturing efficiency and design thinness due to complex processes and layering requirements.

Innovation Solution

The display panel design incorporates a first capacitor plate disposed in the same layer as the active layer of an oxide semiconductor in the drive circuit, simplifying the manufacturing process and enabling a thinner panel design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the capacitor plate is disposed in a separate layer from the active layer, then the electrical insulation and stability are improved, but the manufacturing process complexity and production cost increase

Engineering Contradiction:
Improveelectrical insulation and stabilityVSAvoidmanufacturing process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the capacitor plate and active layer into the same layer (second layer), eliminating the need for separate layer construction. This integration reduces the number of manufacturing steps while maintaining electrical insulation through proper spatial arrangement and insulation layers, thus resolving the contradiction between reliability and process complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The second layer serves multiple functions: it contains both the active layer and capacitor plate, reducing the total layer count. This multi-functional design simplifies the manufacturing process while maintaining the electrical insulation requirements through strategic placement of insulation layers between different components

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple layers are used for the drive circuit, then the electrical performance and insulation are improved, but the display panel thickness increases

Engineering Contradiction:
Improveelectrical performanceVSAvoiddisplay panel thickness
Core Design Contradiction:
ReliabilityVSLength of stationary object

Solution Approach 1:

By combining the capacitor plate and active layer in the same second layer, the patent reduces the total number of layers required for the drive circuit. This consolidation decreases the cumulative thickness of the display panel while maintaining electrical performance through proper insulation layer placement and component arrangement

Inventive Principle:
Principle #5Merging (Combining)

3Manufacturing precision

If traditional separate layer construction is used, then the manufacturing precision is easier to control, but the production cost and time increase

Engineering Contradiction:
Improvelayer alignment precisionVSAvoidproduction efficiency
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The patent combines multiple components (capacitor plate and active layer) into a single layer construction, reducing the number of alignment steps and manufacturing operations. This integration streamlines the production process, increasing manufacturing efficiency while maintaining precision through unified layer fabrication

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

By designing the capacitor plate and active layer to be formed in the same layer during the same manufacturing process, the patent eliminates subsequent alignment operations. This preliminary integration of components during layer formation simplifies the overall manufacturing sequence and improves production efficiency

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS20250174183A1Display panel and display device
Publication Date: 2025.05.29 XIAMEN TIANMA DISPLAY TECH CO LTD
  • US20250174183A1 patent drawing
  • US20250174183A1 patent drawing
  • US20250174183A1 patent drawing

AI summary

Provided are a display panel and a display device. The display panel includes a substrate and a drive circuit disposed on one side of the substrate. The drive circuit includes a first transistor. The first transistor includes a first active layer. The first active layer includes an oxide semiconductor. The drive circuit also includes a first capacitor. One capacitor plate of the first capacitor is disposed in the same layer as the first active layer. In the display panel according to embodiments of the present disclosure, a substrate of a first capacitor in a drive circuit is disposed in the same layer as an active layer of an oxide semiconductor.