Edge Pixel Light-Shielding for Non-Rectangular Display Color Uniformity
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Solution Overview
Problem
Display devices with non-rectangular display areas often experience rattling or uneven hue issues due to the shape of the display area, particularly at the edges, where the light-shielding layer configuration fails to maintain balanced color output.
Innovation Solution
The display device incorporates a light-shielding layer that adjusts the opening size of pixels at the edge portion according to the shape of the display area, ensuring the light-shielding layer is positioned to maintain an area ratio corresponding to the display area's shape, thereby preventing rattling and ensuring balanced color output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display area has a non-rectangular shape, then the display device can achieve various shapes other than rectangular, but rattling or uneven hue may be noticeable at the edge of the display area
Solution Approach 1:
The patent applies local quality by making the opening portions of pixels at edge portions different from those at non-edge portions. Specifically, pixels at edge portions have opening portions with areas smaller than those of pixels at non-edge portions, allowing localized adjustment of light transmission to compensate for the non-rectangular shape and prevent rattling or uneven hue at edges.
Solution Approach 2:
The patent changes the parameter of opening portion area based on pixel location. By adjusting the area of opening portions in pixels at edge portions to be smaller than those in pixels at non-edge portions, the patent modifies the light transmission characteristics locally to maintain color uniformity across the non-rectangular display area.
2Reliability
If the opening size of pixels at edge portion is adjusted, then rattling can be suppressed and balanced color output can be maintained, but the light transmission area is reduced
Solution Approach 1:
The patent applies local quality by making the opening portions of pixels at edge portions different from those at non-edge portions. Specifically, pixels at edge portions have opening portions with areas smaller than those of pixels at non-edge portions, allowing localized adjustment of light transmission to compensate for the non-rectangular shape and prevent rattling or uneven hue at edges.
Solution Approach 2:
The patent applies partial action by adjusting only the opening portions of pixels at edge portions, while leaving pixels at non-edge portions unchanged. This selective adjustment achieves the necessary color uniformity correction without unnecessarily reducing the opening area of all pixels, thus minimizing the impact on overall light transmission.
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 configuration effectively suppresses rattling at the edge of non-rectangular display areas and maintains balanced color output, preventing uneven hues and ensuring smooth expression of the boundary between the display and non-display areas.
Implementation Method 1
a light-shielding layer that adjusts an opening size of pixels at an edge portion according to a shape of the display area
Data Source
AI summary
According to one embodiment, a display device includes a display panel including a plurality of pixels arranged in a non-rectangular display area, and a display controller configured to display images in the display area. An opening portion of each of pixels disposed at an edge portion of the display area is light-shielded at an area ratio according to a shape of the display area.