Positioning Member for Mobile Terminal Display Hole Reduction
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Solution Overview
Problem
The expansion of display area in mobile terminals is limited by components such as front cameras, which require a large safety design gap and increased hole size, affecting the appearance and display efficiency.
Innovation Solution
A display assembly with a light transmitting hole in the display screen and a positioning member that limits the movement of functional devices, reducing the hole size and increasing the displayable area by shortening the tolerance chain and minimizing the safety design gap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large safety design gap is provided for functional devices like front cameras, then the reliability and functionality are ensured, but the hole size increases and display area is reduced
Solution Approach 1:
The positioning member extends in the thickness direction (vertical dimension) of the display assembly, creating a three-dimensional positioning structure. This allows the functional device to be securely positioned with adequate clearance in the horizontal plane while maintaining compact overall dimensions, thus preserving display area while ensuring functional reliability
Solution Approach 2:
The positioning member is integrated within the light transmitting hole structure, with the functional device nested within the positioning member. This nested arrangement allows the functional device to be securely housed with minimal surrounding space, reducing the hole size while maintaining proper positioning and functionality
2Area of stationary object
If the hole size is reduced to increase display area, then the displayable area is increased, but the movement control of functional devices becomes more difficult
Solution Approach 1:
The positioning member utilizes the thickness direction of the display assembly to create positioning surfaces that extend vertically. This three-dimensional positioning structure provides adequate contact area and positioning precision within the constrained horizontal space, enabling precise movement control of the functional device while maintaining a small hole size
Solution Approach 2:
The positioning member is divided into multiple functional sections: a positioning section with positioning surfaces for precise location, and a limiting section with limiting surfaces for movement restriction. This segmentation allows each section to optimize its function within the limited space, ensuring precise movement control while minimizing the overall hole size
3Area of stationary object
If the hole size is reduced, then the full-screen effect is enhanced, but the safety design gap for functional devices is minimized
Solution Approach 1:
The positioning member extends in the vertical dimension (thickness direction) to provide positioning and safety clearance for the functional device. This allows the horizontal opening to be minimized for full-screen effect while the vertical extension provides the necessary safety design gap and functional clearance
Solution Approach 2:
The functional device is nested within the positioning member, which provides the safety design gap internally. This nested configuration allows the external hole size to be minimized for full-screen effect while maintaining adequate safety clearance within the nested structure
Data Source
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AI summary
The embodiments of the disclosure provide a display assembly and a mobile terminal, relate to a technical field of mobile terminal. The display assembly includes a display screen and a positioning member. The display screen may include a display panel and a backlight module. The backlight module may include a base plate. The display screen defines a light transmitting hole at least penetrating through the backlight module, the light transmitting hole is configured for accommodate the functional device. The positioning member is formed on a side of the base plate facing away from the display panel and located at a periphery of the light transmitting hole.