Portrait Display Guide Panel for Light Uniformity Under Thermal Expansion
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Solution Overview
Problem
Existing information handling system display devices face issues such as hot spots, bright or dark lines, and optical performance problems when operating in portrait mode due to thermal expansion of display device optical components like the light guide plate, which can cause misalignment and light uniformity issues.
Innovation Solution
A display device portrait mode optimization system with a portrait mode optimized positioning device, such as a reversible guide panel structure with an embedded bumper, is implemented to stabilize the optical components, eliminating the need for elastomeric components and reducing assembly complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If elastomeric components are used to stabilize optical components in portrait mode, then light uniformity is improved, but device complexity and assembly difficulty increase
Solution Approach 1:
The patent removes elastomeric components from the display device structure and replaces them with a guide panel containing positioning features. This extraction eliminates the complexity of assembling and positioning elastomeric components while maintaining their stabilizing function through the guide panel's embedded positioning features that directly guide optical component placement.
Solution Approach 2:
The guide panel serves as an intermediary structure between the display device housing and the optical components. It provides positioning features that mediate the alignment and stabilization of optical components in portrait mode, replacing the need for elastomeric components while ensuring proper positioning and light uniformity.
2Ease of manufacture
If optical components are allowed to expand freely with thermal changes, then manufacturing simplicity is maintained, but misalignment and optical performance issues occur in portrait mode
Solution Approach 1:
The guide panel introduces localized positioning features at specific locations where optical components are mounted. These positioning features create localized constraints that control thermal expansion and maintain alignment precision in portrait mode, while the rest of the display device structure remains simple and easy to manufacture.
3Device complexity
If the display device is designed only for landscape mode, then device complexity is reduced, but adaptability to portrait mode is lost
Solution Approach 1:
The guide panel is designed with positioning features that enable the display device to function properly in both landscape and portrait modes. This multi-functional design allows the same structural component to serve alignment purposes in either orientation, eliminating the need for mode-specific designs while maintaining simplicity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution optimizes display device performance in portrait mode by preventing misalignment and improving light uniformity, reducing costs and assembly complexity, and minimizing quality issues associated with mis-assembled elastomeric components.
Implementation Method 1
hot spots, bright or dark lines, and optical performance problems when operating in portrait mode due to thermal expansion of display device optical components like the light guide plate
Data Source
AI summary
A display device which includes a display device optical component and a portrait mode optimization system. The portrait mode optimization system includes a portrait mode optimized positioning device positioned contiguous to the display device optical component, the portrait mode optimized positioning device being configured to perform a display device portrait mode optimization operation.