Display Pixel Circuit Sharing to Maintain Resolution
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Solution Overview
Problem
In display apparatuses, the resolution is reduced when multiple pixels are driven by a single pixel circuit.
Innovation Solution
A display apparatus design that includes a substrate with distinct areas, where a first pixel circuit is connected to both a first and a second pixel, with storage capacitors in parallel, and thin-film transistors with different semiconductor layers, allowing multiple pixels to be driven without reducing resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple pixels are driven by one pixel circuit, then device complexity is reduced, but resolution is degraded
Solution Approach 1:
The pixel circuit is segmented into multiple independent functional blocks (first pixel circuit block, second pixel circuit block, third pixel circuit block) that can independently drive different pixels. Each block contains dedicated transistors and storage capacitors, allowing one physical circuit to control multiple pixels without interfering with each other, thus maintaining high resolution while reducing the number of discrete circuit units needed
Solution Approach 2:
The pixel circuit design implements multi-functionality where a single pixel circuit structure serves multiple purposes by driving both first pixels and second pixels through different circuit blocks. The circuit is designed to perform multiple functions (driving different pixel types, maintaining voltage levels, storing multiple signals) within one integrated structure, resolving the contradiction between circuit quantity and resolution
2Productivity
If pixel circuit area is reduced to accommodate multiple pixels, then productivity increases, but manufacturing precision deteriorates
Solution Approach 1:
The patent transitions from a planar two-dimensional layout to a three-dimensional stacked architecture where pixel circuit blocks are arranged in multiple layers (first, second, and third pixel circuit blocks at different levels). This vertical stacking allows higher pixel density without increasing the horizontal footprint or compromising the formation accuracy of individual circuits, as each layer can be independently fabricated with standard precision
Solution Approach 2:
The pixel circuit blocks are nested within each other in a hierarchical structure, with smaller functional units contained within larger circuit blocks. This nested arrangement optimizes space utilization, allowing multiple pixels to be driven by one circuit while maintaining adequate spacing and formation accuracy for each nested component during manufacturing
Data Source
AI summary
A display apparatus includes: a substrate including a first area and a second area disposed adjacent to the first area; a first pixel arranged in the first area; a first pixel circuit arranged in the first area, electrically connected to the first pixel, and overlapping at least a portion of the first pixel; and a second pixel arranged in the second area and electrically connected to the first pixel circuit, wherein the first pixel circuit includes a first storage capacitor and a second storage capacitor that are connected in parallel to each other.