Bent Display Panel Sub-Regions for High Screen-to-Body Ratio
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Solution Overview
Problem
Conventional display devices face limitations in increasing the screen-to-body ratio due to the rigid and heavy glass substrates used in display panels, which restrict flexibility and lead to a significant non-display area, particularly in the edge regions where driving circuits and signal lines are located.
Innovation Solution
A display device design featuring a display panel and window laminated together, where the panel and window regions are bent and curved, allowing for a seamless integration with a housing that minimizes bezel width and maximizes screen visibility by forming smooth, rounded corner edges, effectively reducing the non-display area to nearly zero.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid glass substrate is used for the display panel, then the structural strength and stability are improved, but the flexibility and screen-to-body ratio are worsened due to the need for large non-display areas
Solution Approach 1:
The patent replaces the traditional rigid glass substrate with a flexible substrate that allows the display panel to be bent into sub-panel regions. This flexible substrate enables the display area to extend closer to the edges of the device, significantly increasing the screen-to-body ratio while maintaining structural integrity through the bending configuration rather than rigid support
Solution Approach 2:
The patent introduces a third dimension by bending the display panel into sub-panel regions that extend beyond the traditional flat plane. This dimensional change allows the display area to wrap around edges and corners, effectively utilizing space in multiple dimensions rather than being constrained to a two-dimensional plane, thereby increasing the visible screen area relative to the device body
2Area of moving object
If the non-display area is reduced to increase screen-to-body ratio, then the screen visibility is improved, but the placement of driving circuits and signal lines becomes more difficult
Solution Approach 1:
The patent divides the display panel into a main panel region and multiple sub-panel regions that are bent along bending lines. This segmentation allows the non-display area to be distributed across different segments (main panel and sub-panels), providing multiple locations for placing driving circuits and signal lines without requiring a large continuous non-display area, thus maintaining ease of manufacture while increasing screen-to-body ratio
3Shape
If the panel corners are rounded to achieve smooth edges, then the aesthetic appearance is improved, but the manufacturing precision requirements are increased
Solution Approach 1:
The patent incorporates rounded corners in both the main panel region and sub-panel regions, creating smooth curved edges that improve aesthetic appearance. The curvature is integrated into the bending configuration of the sub-panels, where the bending lines naturally form curved paths at the corners, thereby achieving the desired aesthetic shape while the manufacturing precision is managed through the bending process rather than requiring separate precision machining operations
Data Source
AI summary
A display that includes a display panel and a window laminated with the display panel is presented. The display panel may include: a main panel region including a first side extending in a first direction and a second side extending in a second direction crossing the first direction; a first sub-panel region that is in contact with the first side and is bent; and a second sub-panel region that is in contact with the second side and is bent. A panel corner part of the main panel region adjacent to the first sub-panel region and the second sub-panel region is rounded.