Display Device Sub-Display Area Driving Circuit Overlap
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Solution Overview
Problem
Current display devices face challenges in reducing the size of the peripheral area while maintaining high resolution and efficient driving, as the area occupied by drivers increases with the need for high-resolution and high-rate driving, making it difficult to expand the display area.
Innovation Solution
The display device incorporates a substrate with a sub-display area between main display areas, where driving circuits and sub-pixel circuits are positioned, allowing sub-light-emitting devices to overlap the driving circuits, thereby reducing the peripheral area and expanding the display area by positioning driving circuits within the sub-display area and utilizing a bendable area for further screen expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If driving circuits are positioned in the peripheral area to enable high-resolution and high-rate driving, then driving performance is improved, but the display area is reduced
Solution Approach 1:
The patent positions driving circuits in the sub-display area rather than the peripheral area, utilizing a different spatial dimension (the narrow region between main display areas) to accommodate driving components. This allows the main display areas to be maximized while still providing sufficient space for driving circuits to operate at high resolution and high rates.
Solution Approach 2:
The display area is segmented into main display areas and a sub-display area, with driving circuits specifically positioned in the sub-display area. This segmentation allows the driving circuits to be separated from the main display regions, enabling high-performance driving without compromising the display area of the main regions.
2Area of stationary object
If the peripheral area is reduced to expand display area, then display area is improved, but space for driving circuits is reduced
Solution Approach 1:
Instead of reducing the peripheral area, the patent utilizes the sub-display area (the narrow region between main display areas) to position driving circuits. This approach expands the overall display area by eliminating or minimizing the peripheral area while finding alternative space in the sub-display area to accommodate driving circuits, thus maintaining device functionality.
3Area of stationary object
If sub-light-emitting devices are positioned to overlap driving circuits, then space utilization is improved, but manufacturing complexity increases
Solution Approach 1:
The sub-light-emitting devices are positioned to overlap the driving circuits in the sub-display area, utilizing the vertical stacking dimension to improve space utilization. This overlapping arrangement allows both the driving circuits and light-emitting devices to occupy the same planar space at different vertical levels, maximizing the use of available space in the narrow sub-display region.
Data Source
AI summary
A display device includes a substrate having a first main display area, a second main display area, and a sub-display area positioned between the first main display area and the second main display area; a first driving circuit positioned on the sub-display area of the substrate; a first sub-pixel circuit and a second sub-pixel circuit positioned on respective sides of the first driving circuit in the sub-display area of the substrate; a first sub-light-emitting device connected to the first sub-pixel circuit and overlapping the first driving circuit; and a second sub-light-emitting device connected to the second sub-pixel circuit and overlapping the first driving circuit.