Cover Panel Corner Notches for Precise Multi-Face Display Alignment
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Solution Overview
Problem
Existing display devices face challenges in accurately aligning display panels and cover panels during assembly, particularly when designing devices that can display images on multiple faces, leading to potential distortion of alignment marks.
Innovation Solution
Incorporating alignment notches at the corners of the cover panel and using detectors to recognize these notches during the assembly process, ensuring precise alignment of the display panel and cover panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If alignment marks are used on the display panel and cover panel, then the panels can be aligned during assembly, but the alignment marks may become distorted when the device displays images on multiple faces
Solution Approach 1:
The patent extracts the alignment function from traditional alignment marks and implements it through alignment notches on the cover panel. These notches provide geometric reference features that are independent of the display content, eliminating distortion issues while maintaining alignment precision during assembly
Solution Approach 2:
The alignment notches serve as an intermediary reference feature between the cover panel and display panel. Instead of relying on marks that may distort, the notches provide a stable geometric mediator that enables accurate alignment through detector recognition without being affected by display image rendering
2Adaptability or versatility
If the device is designed to display images on multiple faces, then the device versatility is improved, but the alignment mark stability deteriorates
Solution Approach 1:
The alignment function is extracted from the display system and implemented separately through mechanical alignment notches on the cover panel. This separation ensures that alignment reliability is independent of the multi-face display functionality, allowing the device to maintain stable alignment references while achieving display versatility on multiple faces
Solution Approach 2:
The patent segments the alignment reference system from the display content system. Alignment notches are provided on the cover panel as distinct geometric features, separate from the display images, allowing multi-face display capability while maintaining stable, dedicated alignment references that are not affected by display content changes
3Productivity
If traditional alignment marks are used, then the assembly process can proceed, but the recognition accuracy of alignment marks decreases due to distortion
Solution Approach 1:
Alignment notches are introduced as intermediary geometric features on the cover panel that mediate the alignment process. These notches provide clear, distortion-free reference points for detectors, enabling accurate recognition and maintaining assembly productivity without compromising recognition accuracy
Solution Approach 2:
The patent replaces optical alignment marks that are subject to distortion with mechanical alignment notches on the cover panel. This substitution provides physically stable geometric references that can be reliably detected, maintaining both assembly continuity and high recognition accuracy
Data Source
AI summary
A display device includes a display panel comprises a display area and a non-display area surrounding the display area; a cover panel disposed on a rear surface of the display panel and comprising a front surface, a first side surface connected to the front surface and bent along a first bending line, a second side surface connected to the front surface and bent along a second bending line intersecting the first bending line, and a first corner located between the first side surface and the second side surface; and an alignment notch defined at the first corner of the cover panel.