Resolution Measurement Apparatus for Display Optical Parts
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Solution Overview
Problem
Current methods lack an efficient and accurate means to measure the resolution of optical parts in display modules, which affects image sharpness and quality in electronic devices like smartphones and digital cameras.
Innovation Solution
A resolution measurement apparatus comprising a stage with an opening, cameras, and a light source with a lens positioned between the light source and stage, allowing light to pass through the optical part and be captured by cameras to measure resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional measurement methods are used, then the measurement process is simple, but the measurement precision is insufficient for optical parts in display modules
Solution Approach 1:
The measurement system is segmented into distinct functional modules: a stage for positioning the display module, a lens for optical focusing, multiple cameras for capturing images from different angles, and a light source for illumination. This segmentation allows each component to be optimized for its specific function while working together to achieve high measurement precision.
Solution Approach 2:
A lens is introduced as an intermediary element between the light source and the display module's optical part. This lens focuses light onto the optical part and directs the reflected or transmitted light to the cameras, enabling precise resolution measurement that would not be achievable with direct imaging alone.
2Measurement precision
If multiple cameras are used to capture images from different angles, then the measurement accuracy improves, but the device complexity increases
Solution Approach 1:
Multiple cameras are combined in a coordinated arrangement around the stage, all capturing images of the same optical part simultaneously or in sequence. The images from multiple cameras are then processed together to calculate resolution metrics, combining the strengths of each camera's perspective to achieve higher overall measurement accuracy.
3Manufacturing precision
If a lens is positioned between the light source and stage, then the light focusing and resolution measurement capability improves, but the device complexity increases
Solution Approach 1:
The lens is pre-positioned in a fixed location between the light source and the stage before the actual measurement process begins. This preliminary setup ensures that the optical path is properly configured and focused, allowing subsequent measurements to be performed without repeated adjustments, thereby improving manufacturing precision while keeping the added complexity manageable.
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
Enables precise measurement of optical part resolution, enhancing image sharpness and quality by quantifying the degree of detail captured by the optical mechanism.
Implementation Method 1
generating a light from a light source disposed under the lens
Implementation Method 2
providing the light to a plurality of cameras disposed above the stage through the lens and the optical part
Data Source
AI summary
A resolution measurement apparatus includes a stage configured to receive a display module including an optical part. The stage includes an opening that overlaps the optical part, when viewed in a plan view, when the display module is disposed on the stage. The resolution measuring apparatus further includes a plurality of cameras disposed above the stage, a light source disposed under the stage and overlapping the opening when viewed in the plan view, and a lens disposed between the light source and the stage. The lens overlaps the opening when viewed in the plan view, and the optical part overlaps the lens, when viewed in the plan view, when the display module is disposed on the stage.