Spliced Display Panel Redundant Electrode Alignment
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Solution Overview
Problem
The existing methods for fabricating large-sized display panels, such as splicing small-sized panels, often result in misalignment of monochromatic dots due to differences in pixel arrangements, leading to low yield rates and insufficient drive ability.
Innovation Solution
Incorporating redundant electrodes in display panels that can be selectively connected to light-emitting elements of different colors, allowing for precise alignment and soldering of corresponding color elements during the splicing process, thereby avoiding misalignment and simplifying the fabrication process by using panels with the same substrates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If small-sized display panels are spliced to fabricate large-sized display panels, then the display size is increased, but misalignment of monochromatic dots occurs due to differences in pixel arrangements
Solution Approach 1:
The patent applies preliminary action by pre-defining the pixel arrangement pattern and color sequence in the electrode configuration before splicing. Each display panel is designed with redundant electrodes that follow a predetermined arrangement rule, ensuring that when panels are spliced together, the monochromatic dots align automatically without requiring post-splicing adjustment. This preliminary design of the electrode structure prevents misalignment issues that would otherwise occur during the splicing process.
2Manufacturing precision
If different substrate configurations are used to achieve proper pixel alignment in spliced panels, then alignment precision is improved, but device complexity and fabrication difficulty increase
Solution Approach 1:
The patent applies homogeneity by using the same substrate configuration and electrode structure across all display panels to be spliced. Instead of creating different substrate types for different panels, the invention ensures that every panel has identical electrode arrangements and pixel patterns. This uniformity allows panels to be spliced together seamlessly, maintaining alignment precision while significantly reducing fabrication complexity and the need for multiple substrate manufacturing processes.
3Manufacturing precision
If redundant electrodes are added to enable selective connection for alignment, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing redundant electrodes that serve multiple functions: they are used during the splicing process to align and connect panels of the same color, and after splicing, they become part of the functional electrode structure for driving the display. This multi-functional design means the redundant electrodes are not truly unnecessary components but rather electrodes that perform alignment during manufacturing and display driving during operation, thereby improving alignment precision without genuinely increasing device complexity.
Data Source
AI summary
A display apparatus and a display panel are provided in the present disclosure. The display apparatus includes a plurality of display panels. A display panel of the plurality of display panels includes a display region and a binding region; the display region includes a first side and a second side which are opposite to each other; the binding region is on the first side; the plurality of display panels includes a first display panel and a second display panel; and a second side of the first display panel is spliced with a second side of the second display panel, where the plurality of display panels includes redundant electrodes.