Display Panel Gate Circuit Layout for Narrow-Bezel Wearables
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display panels for small-sized wearable devices face challenges in achieving a smaller frame size while maintaining effective driving circuits for sub-pixels, particularly in round watch designs.
Innovation Solution
The display panel incorporates a base substrate with a display area and peripheral area, featuring cascaded multistage gate and light-emitting control driving units integrated within the display area, utilizing pixel driving circuits and connectors to reduce frame size and improve resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If driving circuits are placed in the peripheral area, then the display area can be larger, but the frame size increases and resolution decreases
Solution Approach 1:
The patent moves the gate driving circuit from the peripheral area (2D plane) into the display area by utilizing the third dimension (vertical stacking). The driving circuit is formed in multiple layers above the base substrate, allowing it to occupy vertical space rather than horizontal space, thus enabling larger display areas without increasing frame size.
Solution Approach 2:
The driving circuit is nested within the display area by stacking multiple functional layers (base substrate, driving circuit layer, emission layer, etc.) vertically. Each layer contains specific circuit components or functional elements that are integrated within the overall display structure, allowing the driving circuit to be embedded within the display area rather than occupying peripheral space.
2Length of moving object
If driving circuits are integrated within the display area using multiple layers, then frame size is reduced and resolution is improved, but the structural complexity increases
Solution Approach 1:
The display panel is segmented into distinct functional layers, each with specific components. The base substrate contains pixel electrodes and thin film transistors, while subsequent layers contain driving circuits, emission layers, and control circuits. This segmentation allows complex functionality to be distributed across multiple simpler layers, making the overall complex structure manageable and manufacturable.
Solution Approach 2:
The base substrate serves multiple functions: it provides mechanical support, contains pixel electrodes for light emission control, and houses thin film transistors for pixel-level driving. This multi-functionality reduces the need for separate dedicated structures, simplifying the overall design despite the multi-layer complexity.
Data Source
AI summary
Provided are a display panel and a manufacturing method thereof, and a display device. The display panel includes: a base substrate including a display area and a peripheral area; a plurality of sub-pixels and gate lines located at the display area; and a gate driving circuit including cascaded multistage gate driving units, one or more stages gate driving units include first and second gate driving sub-circuits spaced apart by pixel driving circuits of a first group of sub-pixels; a gate driving sub-circuit connection line connected to the first and second gate driving sub-circuits. The pixel driving circuit of at least one of the first group of sub-pixels includes: a first pixel driving sub-circuit including a driving transistor including a first active layer; a second pixel driving sub-circuit; a connector located in a different layer from the first active layer and electrically connected to the first and second pixel driving sub-circuits.