Display Module with Variable Thickness Window and Pixel Area Compensation
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Solution Overview
Problem
Existing display modules in electronic devices, such as electronic watches, face challenges in achieving improved display quality due to distortions caused by varying pixel sizes and window thicknesses, leading to uneven brightness and image quality issues.
Innovation Solution
A display module design featuring a window member with varying thickness areas and a display panel with corresponding pixel areas, where the second pixel area is smaller than the first, arranged in a specific matrix pattern to compensate for the curvature and thickness differences, ensuring uniform brightness and preventing image distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a window member with varying thickness is used to create curvature and aesthetic appeal, then display quality and immersive experience are improved, but image distortion and uneven brightness occur due to the thickness variations
Solution Approach 1:
The patent applies local quality by varying the pixel area according to the local thickness of the window member. Specifically, pixels in the first matrix (overlapping the first window area with first average thickness) have a first area, while pixels in the second matrix (overlapping the second window area with second average thickness) have a second area that is smaller than the first area. This local adaptation compensates for the optical path differences caused by varying window thickness, maintaining brightness uniformity across the display.
2Shape
If pixels are arranged in a regular grid pattern, then manufacturing is simplified, but image distortion occurs due to the curvature of the window member
Solution Approach 1:
The patent segments the pixel array into multiple matrices (first matrix, second matrix, third matrix, fourth matrix) arranged in different orientations. The first and third matrices are arranged in a first direction, while the second and fourth matrices are arranged in a second direction different from the first direction. This segmentation approach allows the pixel layout to adapt to the curved surface of the window member, reducing image distortion while maintaining manufacturability through systematic arrangement patterns.
3Illumination intensity
If the pixel area is increased to improve visibility, then display brightness is enhanced, but image distortion increases due to the curvature of the window member
Solution Approach 1:
The patent changes the parameter of pixel area systematically across different matrices. Pixels in the first matrix have a first area, while pixels in the second matrix have a second area that is smaller than the first area. This parameter change compensates for the magnification effect caused by the window member's curvature, ensuring that the displayed image maintains correct proportions and reduces distortion while preserving display brightness.
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
The solution enhances display quality by maintaining uniform brightness across different pixel areas, reducing distortion, and providing an improved immersive experience through precise control of pixel density and window curvature.
Implementation Method 1
a window member configured to include a first window area having a first average thickness and a second window area having a second average thickness greater than the first average thickness
Data Source
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AI summary
A display module (200) includes a window member (300) including a first window area (WA1) having a first average thickness and a second window area (WA2) having a second average thickness greater than the first average thickness, and a display panel (400) including a first display area (DA1) overlapped with the first window area (WA1) in a thickness direction (DR1) and including a plurality of first pixels (PX1) and a second display area (DA2) overlapped with the second window area (WA2) in the thickness direction (DR1) and including a plurality of second pixels (PX2). The second pixels (PX2) have a second pixel area (PS2) smaller than a first pixel area (PS1) of the first pixels (PX1).