Display Device Intermediate Member Chassis Positioning
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Solution Overview
Problem
Existing liquid crystal display devices face challenges in maintaining an appropriate gap between the display panel and the chassis, leading to increased chassis size, reduced productivity, and display unevenness due to insufficient rigidity of the front plate, especially during touch operations.
Innovation Solution
A display device design that incorporates an intermediate member with smaller dimensions between the front plate and the display panel, allowing the inner side surface of the chassis to contact the intermediate member, which helps maintain the gap and reduce the size and weight of the chassis, while enhancing rigidity to prevent display unevenness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the chassis size is increased to maintain an appropriate gap between the display panel and chassis, then the gap can be properly maintained, but the device size and weight increase
Solution Approach 1:
The patent introduces a positioning member as an intermediary component between the chassis and the display panel. This positioning member has a positioning protrusion that fits into a positioning groove, enabling precise positioning and gap maintenance without requiring an oversized chassis. The intermediary component resolves the contradiction by providing the necessary positioning function while keeping the chassis compact and lightweight.
2Manufacturing precision
If the chassis size is increased to ensure proper positioning of the display panel, then positioning accuracy improves, but the device complexity increases
Solution Approach 1:
The positioning member serves as a mediator that simplifies the chassis structure while maintaining positioning accuracy. Instead of designing a complex oversized chassis for positioning, the patent uses a separate positioning member with simple protrusion-groove geometry that fits into the chassis, reducing overall structural complexity.
Solution Approach 2:
The patent segments the positioning function from the main chassis structure by introducing a separate positioning member. This segmentation allows the chassis to be simpler while the positioning member handles the positioning task, reducing device complexity while maintaining positioning accuracy.
3Reliability
If the front plate rigidity is increased to prevent display unevenness during touch operations, then display quality improves, but the device weight increases
Solution Approach 1:
The patent employs composite material construction for the front plate, combining materials with different properties to achieve the required rigidity for preventing display unevenness during touch operations. This composite structure provides the necessary mechanical strength and stiffness to maintain display quality while minimizing the weight increase that would result from using a single heavy material.
Data Source
AI summary
A display panel is attached to a front plate which is disposed at a front surface side of the display panel, with an intermediate member interposed therebetween. A chassis accommodates the display panel in a state in which an opening edge of the chassis comes into contact with the front plate and an inner side surface of the chassis comes into contact with a side surface of the intermediate member. The opening edge of the chassis comes into contact with the front plate to position the display panel and the chassis in the thickness direction of the display panel. The inner side surface of the chassis comes into contact with the side surface of the intermediate member to position the display panel and the chassis in a direction along a display surface of the display panel.