Hybrid LCD-OLED Pixel Layout for Bright Ambient Visibility
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Solution Overview
Problem
Conventional LCD panels face difficulties in being visible in bright ambient environments due to limited adaptability to varying light conditions.
Innovation Solution
A display device comprising pixel units arranged in a matrix on a substrate, with each pixel unit including a transmission region with a liquid crystal layer and a reflection region featuring an organic light emitting layer, allowing for differential operation based on ambient lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If LCD panel is used, then manufacturing simplicity is maintained, but visibility in bright ambient environments deteriorates
Solution Approach 1:
The display panel is segmented into multiple pixel units, where each pixel unit contains both a liquid crystal display unit and an organic light emitting display unit. This segmentation allows different display technologies to coexist and be selectively activated based on ambient lighting conditions, thereby improving visibility in bright environments while maintaining manufacturing simplicity through a unified panel structure.
Solution Approach 2:
The patent combines LCD and OLED technologies within the same display panel by integrating both liquid crystal display units and organic light emitting display units into a single substrate. This merging enables the display to leverage the advantages of both technologies - the manufacturing simplicity of LCD and the superior brightness of OLED - to resolve the contradiction between ease of manufacture and visibility in bright environments.
2Device complexity
If single display technology is used, then device complexity is reduced, but adaptability to different ambient environments deteriorates
Solution Approach 1:
The display device dynamically adapts to different ambient lighting conditions by selectively activating either the liquid crystal display unit or the organic light emitting display unit based on the ambient light level. This dynamic switching capability enhances adaptability to various environments while maintaining relatively simple device structure through a unified control system that manages both display types.
Solution Approach 2:
The display panel is designed with multi-functionality by incorporating both liquid crystal display units and organic light emitting display units within the same pixel structure. This universal design allows the display to function effectively across different ambient lighting conditions - using LCD in normal conditions and OLED in bright conditions - thereby improving adaptability without significantly increasing device complexity.
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 the display device to more flexibly respond to different ambient environments by effectively utilizing both liquid crystal and organic light emitting layers, improving visibility in both bright and low-light conditions.
Implementation Method 1
a transmission region (100R) including a liquid crystal layer
Implementation Method 2
a reflection region, spaced apart from the transmission region, and including an organic light emitting layer
Data Source
AI summary
A display device includes; pixel units arranged in a matrix on a first substrate, wherein each pixel unit among the pixel units includes a transmission region including a liquid crystal layer, and a reflection region spaced apart from the transmission region and including an organic light emitting layer.