Display Device Region-Specific Shielding Allowances
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Solution Overview
Problem
Conventional display devices with a single assembling allowance between conductive lines and shielding portions suffer from reduced aperture ratio, especially in curved displays where light leakage occurs, leading to decreased performance.
Innovation Solution
The display device features different allowances between conductive lines and shielding portions in various regions, such as central, peripheral, and edge regions, allowing for adjustable pitches and edge distances to maintain high aperture ratio and chromaticity coordinates even when bent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a single assembling allowance is used between conductive lines and shielding portions, then the manufacturing process is simple, but the aperture ratio is reduced
Solution Approach 1:
The patent applies different assembling allowances in different regions of the display device. Specifically, the first assembling allowance is set between conductive lines and shielding portions in the first region, while a second assembling allowance (different from the first) is set in the second region. This local differentiation allows optimization of aperture ratio in specific areas without compromising overall manufacturability.
2Device complexity
If a single assembling allowance is used between conductive lines and shielding portions, then the design is simple, but light leakage occurs in curved displays
Solution Approach 1:
The patent addresses light leakage in curved displays by implementing region-specific assembling allowances. The first region uses a first assembling allowance while the second region uses a second assembling allowance, allowing tailored optimization for curved display requirements and preventing light leakage in critical areas.
Solution Approach 2:
The display device is divided into multiple regions (first region and second region) with different assembling allowance characteristics. This segmentation allows the patent to address light leakage issues in curved displays by applying appropriate allowances in specific regions rather than using a uniform approach throughout the entire display.
3Area of stationary object
If different assembling allowances are used in different regions, then the aperture ratio is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent implements different assembling allowances in different regions to improve aperture ratio while managing manufacturing complexity. By specifying that the first assembling allowance differs from the second assembling allowance, the patent achieves localized optimization without requiring complete redesign of the manufacturing process.
Data Source
AI summary
A display device is disclosed, which includes a display area including a central region and a peripheral region. The display device includes: a first conductive line, a second conductive line, a first shielding portion and a second shielding portion. The first conductive line is disposed in the central region and extends along a first direction. The second conductive line is disposed in the peripheral region and extends along the first direction. The first shielding portion overlaps the first conductive line and comprises a first edge extending along the first direction and adjacent to the second conductive line. The second shielding portion overlaps the second conductive line and comprises a second edge extending along the first direction and away from the central region. A distance between the first conductive line and the first edge is different from a distance between the second conductive line and the second edge.