Bendable Display Panel Alignment for Reduced Bezel Size
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Solution Overview
Problem
Existing display devices have a limited display region and a significant non-display region, which restricts their ability to provide an enlarged display area while minimizing the bezel size.
Innovation Solution
The display device incorporates a display panel with a flat portion and a bending portion, where the bending portion allows the panel to be bent, and a window and protection film are aligned with the display panel to maximize the display area and minimize the non-display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display region is enlarged and the non-display region is reduced, then the display area is improved, but the alignment precision between components becomes more difficult to maintain
Solution Approach 1:
The display panel is divided into a flat portion corresponding to the display area and a bending portion extending from the flat portion. This segmentation allows the display panel to have a larger overall area while maintaining precise alignment in the flat display region, resolving the contradiction between enlarged display area and maintained alignment precision.
Solution Approach 2:
The invention introduces a spatial dimension by creating a bending portion that extends from the flat display portion. This allows the display panel to occupy more space in three-dimensional space while maintaining precise two-dimensional alignment in the flat portion, thus enlarging the display area without compromising alignment precision.
2Area of stationary object
If the window and display panel are aligned to maximize display area, then the bezel size is reduced, but the structural complexity increases
Solution Approach 1:
The display panel is segmented into a flat portion and a bending portion, which simplifies the overall structure by allowing the window and protection film to be aligned only with the flat portion's side surfaces. This segmentation reduces the complexity of maintaining alignment across the entire display area while still maximizing the display area.
Solution Approach 2:
The invention applies local quality by requiring alignment only at specific locations (the side surfaces of the flat portion) rather than across the entire display panel. This localized alignment requirement simplifies the overall structure while still achieving maximum display area utilization.
3Area of stationary object
If the display panel is made bendable to enlarge display region, then the display area is improved, but the reliability of the display panel decreases
Solution Approach 1:
The display panel is divided into a flat portion and a bending portion, where only the bending portion is designed to be flexible. This segmentation allows the display panel to achieve a larger display area through bending while maintaining the reliability of the flat display portion, as the rigid flat portion ensures stable performance.
Solution Approach 2:
The invention applies local quality by making only the bending portion flexible while keeping the flat display portion rigid. This localized flexibility ensures that the display panel can be bent to enlarge the display region without compromising the reliability of the main display area.
Data Source
AI summary
A display device includes a window; a display panel including: a flat portion corresponding to the display area, and a bending portion extending from the flat portion and at which the display panel is bendable; a circuit substrate connected to the display panel at the bending portion; and a protection film disposed facing the window with the display panel therebetween. The window and the display panel each include a first side surface corresponding to the bending portion, and remaining side surfaces except for the first side surface, and the remaining side surfaces of the window and the display panel are respectively aligned with each other to define a total planar area of the window being equal to a total planar area of the flat portion.