Display Gate Driving on Bending Substrates for Reduced Bezels
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Solution Overview
Problem
Existing display devices have a significant bezel area that hinders the reduction of the overall display area, limiting design flexibility and increasing power consumption.
Innovation Solution
A display device design that incorporates a first gate driving circuit on the substrate with a bending area between the active and non-active areas, allowing for a reduced bezel area and improved power efficiency through optimized gate driving circuit design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional rigid substrate structure is used, then manufacturing precision is maintained, but the bezel area cannot be reduced and design flexibility is limited
Solution Approach 1:
The substrate is designed with a bending area that allows it to flex and change shape. This dynamic capability enables the substrate to accommodate the gate driving circuit in different configurations, reducing the bezel area while maintaining manufacturing feasibility through controlled deformation rather than rigid structural changes
Solution Approach 2:
The gate driving circuit is relocated from the traditional planar arrangement to a three-dimensional configuration by utilizing the bending area of the substrate. This dimensional transition allows the circuit to be positioned in space rather than confined to a flat layout, thereby reducing the bezel area and enhancing design flexibility
2Adaptability or versatility
If the gate driving circuit is redesigned to reduce bezel area, then design flexibility improves, but manufacturing complexity increases
Solution Approach 1:
The bending area provides a dynamic platform that can accommodate various gate driving circuit configurations. This dynamic structure simplifies manufacturing by allowing flexible adaptation to different circuit layouts without requiring complex rigid structural changes, thus reducing manufacturing complexity while maintaining design flexibility
3Power
If the gate driving circuit performance is improved, then power consumption increases, but the bezel area reduction benefits are lost
Solution Approach 1:
By relocating the gate driving circuit to a three-dimensional configuration in the bending area, the circuit can be optimized for performance while utilizing space efficiently. This spatial reconfiguration allows improved circuit design that reduces power consumption compared to traditional planar arrangements, thereby maintaining the bezel area reduction benefits
Data Source
AI summary
A display device example can include a substrate having an active area and a non-active area, and a first gate driving circuit disposed on the substrate. The non-active area includes a first bending area between the active area and an area where the first gate driving circuit is disposed. The display device can further include an image display layer disposed on the substrate. The first gate driving circuit can be disposed to overlap with the image display layer on a rear surface of the substrate.