Frame Assembly Covering Stepped Area for Bezelless Display Sealing
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Solution Overview
Problem
Current display assemblies for electronic devices face challenges in achieving seamless, bezelless full-screen displays due to the mismatch in outline sizes between electronic displays and cover lenses, leading to inadequate sealing and protection of internal components.
Innovation Solution
A display assembly design that includes a frame extending beyond the electronic display's outline to cover the stepped area formed by the larger cover lens, creating a flat surface for attachment to the device housing, and incorporating a light guide frame and protective housing for enhanced sealing and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cover lens is made larger than the electronic display to provide attachment area, then the sealing and protection of internal components is improved, but a stepped area is formed that compromises the seamless bezelless display appearance
Solution Approach 1:
The frame is divided into two distinct portions: a light guide frame portion that contacts the light guide and electronic display, and a protective frame portion that contacts the stepped area of the cover lens. This segmentation allows each portion to serve its specific function while collectively resolving the contradiction between sealing and seamless appearance.
Solution Approach 2:
The frame acts as an intermediary component between the electronic display and the device housing. It bridges the gap created by the size mismatch between the display and cover lens, providing both the necessary sealing/protection and enabling the seamless appearance by covering the stepped area.
2Reliability
If a frame is added to cover the stepped area and provide attachment functionality, then the sealing and protection is improved, but the device complexity increases
Solution Approach 1:
The light guide frame and protective frame are merged into a single integrated frame component. This combining reduces the number of separate parts that would need to be manufactured, assembled, and aligned, thereby reducing device complexity while maintaining the dual functionality of light guiding and protection.
Solution Approach 2:
The single frame structure serves multiple functions simultaneously: it acts as a light guide, provides protective sealing, creates attachment surfaces for the cover lens and housing, and maintains the seamless appearance. This multi-functionality eliminates the need for multiple separate components.
3Strength
If the frame extends beyond the electronic display to attach to the cover lens, then the attachment security is improved, but the area of the light guide frame is reduced
Solution Approach 1:
The frame is designed with different portions having different functions and dimensions. The light guide frame portion is optimized for light transmission with adequate area, while the protective frame portion extends outward to provide attachment surfaces. This local differentiation allows the light guide area to be sufficient while still providing extended attachment capability.
Data Source
AI summary
A display assembly includes an electronic display that comprises a collection of substrate layers and that has a first outline. The display assembly also includes a cover lens that: (i) is affixed to the electronic display, (ii) has a second outline that is larger than the first outline, and (iii) forms a stepped area at an overlap between the first and second outlines. The display assembly further includes a frame that: (a) supports a portion of the electronic display on at least two opposing sides of the electronic display, (b) attaches to the cover lens such that a substantial portion of the stepped area is covered by a portion of the frame, and (c) connects to a housing of an electronic device such that the display assembly is supported by the housing of the electronic device via the frame being connected to the housing of the electronic device.