Separable Alignment Structure for LCD Flexible Substrate Protection
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Solution Overview
Problem
High-resolution liquid-crystal display (LCD) devices face challenges in aligning with external modules due to the integration of guide units with projections, which can impair flexible substrates and reduce alignment accuracy, especially as the number of pixels and driving circuits increase, leading to potential collisions and defects.
Innovation Solution
A separable alignment structure comprising a body unit and a guide unit, where the guide unit is inserted into an opening of the body unit, with precise dimensional control to avoid collisions and enhance alignment accuracy, and the use of an adhesive to secure the guide unit on the transparent plate, preventing tilting and ensuring accurate positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If guide units are integrated with projections in high-resolution LCD devices, then alignment function is provided, but flexible substrates may be impaired due to collisions
Solution Approach 1:
The alignment structure is divided into two separate components: a body unit with an opening and a guide unit that inserts into the opening. This segmentation allows the guide unit to be positioned separately from the main body, preventing direct contact with flexible substrates while maintaining the alignment function. The guide unit can be inserted through the opening without interfering with substrates that are mounted on the body unit.
Solution Approach 2:
The guide unit is extracted from the integrated projection structure and made as a separate insertable component. This extraction allows the guide unit to be positioned in a location that provides alignment functionality without physically interfering with flexible substrates during assembly or operation, thereby eliminating the collision risk while preserving the alignment capability.
2Manufacturing precision
If the number of pixels and driving circuits is increased for high resolution, then display quality is improved, but the risk of collision with guide units increases
Solution Approach 1:
By segmenting the alignment structure into a body unit and a separate guide unit, the patent creates spatial separation between the guide unit and the flexible substrates that carry the increased number of pixels and driving circuits. This segmentation allows high-resolution displays with more circuit elements to be implemented without increasing collision risk, as the guide unit occupies a distinct spatial zone.
3Device complexity
If guide units are integrated with the body, then alignment structure is simplified, but alignment accuracy with external modules may be reduced
Solution Approach 1:
The guide unit is designed to insert into an opening in the body unit, creating a nested configuration where one component fits within another. This nesting approach provides precise alignment between the guide unit and body unit through the fit of the opening, thereby improving alignment accuracy with external modules while adding minimal complexity to the overall structure.
Solution Approach 2:
The patent replaces the traditional integrated mechanical projection structure with a modular insertable guide unit system. This substitution allows for more precise alignment through the insertable nature of the guide unit, which can be positioned accurately within the opening, thereby improving alignment accuracy while maintaining reasonable structural simplicity.
4Reliability
If adhesive is used to secure guide unit, then fixation is improved, but tilting may occur if not properly applied
Solution Approach 1:
The adhesive application process is designed to be performed before final assembly, allowing the adhesive to be properly applied and cured in a controlled manner. This preliminary action ensures that the guide unit is securely fixed to the body unit before any operational stresses are applied, preventing tilting while maintaining reliable fixation. The opening structure also allows for verification of proper adhesive application before final assembly.
Data Source
AI summary
A display device includes a display panel, a plurality of flexible substrates, and an alignment structure. The display panel is disposed on a side of the transparent plate. The plurality of flexible substrates is connected to the display panel. The alignment structure is disposed on the side of the transparent plate for coupling with an external structure. It can be disposed regardless of positions of the plurality of flexible substrates to avoid the plurality of flexible substrates from being impaired by an unnecessary contact with the alignment structure. Accordingly, it is possible to avoid elements in the display device from being impaired by the alignment structure during the manufacturing process of the display device.