Display Panel Support Structure for Narrow Bezel Scratch Prevention
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Solution Overview
Problem
The assembly of narrow bezel display devices often results in abnormal sounds due to interference between the polarizer and the case, caused by inadequate overlapping width and assembly tolerances, leading to scratching during opening, closing, or shaking.
Innovation Solution
A display device with a support structure on the opposing substrate to support the front cover, ensuring it remains stable even when disengaged from the polarizer, thereby reducing scratching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the overlapping width between the polarizer and the case is reduced to achieve a narrow bezel design, then the bezel width is reduced and the display area is increased, but the polarizer and case scratch each other during opening, closing, or shaking, generating abnormal sounds
Solution Approach 1:
A support structure is introduced as an intermediary component between the polarizer and the case. This support structure extends from the opposing substrate toward the front cover, providing a physical barrier that prevents direct contact between the polarizer edge and the case. The support structure acts as a mediator that absorbs mechanical interference, eliminating the scratching issue while maintaining the narrow bezel design.
Solution Approach 2:
The solution moves from a two-dimensional overlapping relationship (polarizer and case in the same plane) to a three-dimensional structure by adding the support structure that protrudes from the opposing substrate. This vertical dimension (thickness direction) creates a new spatial relationship where the support structure height (first distance) is greater than or equal to the polarizer thickness (second distance), preventing the polarizer from contacting the case during assembly movements.
2Length of moving object
If the overlapping width between the polarizer and the case is reduced to achieve a narrow bezel design, then the bezel width is reduced and the display area is increased, but the assembly tolerance requirements become more stringent and difficult to control
Solution Approach 1:
The support structure serves as a buffer that decouples the assembly tolerance requirements. By providing this intermediate support element, the system can accommodate larger variations in assembly positioning without causing the polarizer to contact the case, thereby relaxing the manufacturing precision requirements while maintaining the narrow bezel aesthetic.
3Reliability
If a support structure is added to prevent scratching between the polarizer and case, then abnormal sounds are reduced and reliability is improved, but the device complexity increases
Solution Approach 1:
The support structure is merged with the opposing substrate, forming an integrated structure. The support structure can be formed as an extension of the opposing substrate or closely integrated with it, reducing the number of separate components. This merging approach minimizes assembly steps and reduces device complexity while still providing the necessary support function to prevent polarizer-case contact.
Data Source
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AI summary
Embodiments of the present application discloses a display device in which a support structure is disposed on a side of the opposed substrate away from the array substrate and on a side of the first polarizer close to the edge of the opposed substrate; in a direction perpendicular to the panel surface of the display panel, a distance from a surface of the support structure away from the array substrate to a surface of the opposing substrate away from the array substrate is a first distance, a distance from a surface of the first polarizer away from the array substrate to a surface of the opposing substrate away from the array substrate is a second distance, and the first distance is greater than or equal to the second distance.