LED Display Pixel Structure for High Resolution
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Solution Overview
Problem
Current LED displays face limitations in resolution due to the size of single color LEDs and require complex virtual pixel arrangements to achieve higher resolution, which are non-standard and difficult to manufacture.
Innovation Solution
The use of square and rectangular shaped pixels with three color light sources, allowing for standard building blocks that can be easily manufactured and interfaced, enabling increased resolution without the need for a fourth light source per pixel, and allowing for compact and fine pitch arrangements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If virtual pixels are used to increase resolution, then resolution is improved, but device complexity increases and manufacturing becomes difficult
Solution Approach 1:
The pixel array is segmented into different pixel types (first pixels with three light sources, second pixels with four light sources) arranged in alternating rows. This segmentation allows the system to achieve high resolution through the combination of standard and extended pixel configurations, resolving the contradiction between resolution improvement and manufacturing complexity by providing a structured, repeatable pattern.
Solution Approach 2:
Different regions of the display have different pixel configurations - odd rows use first pixels with three light sources while even rows use second pixels with four light sources. This local differentiation allows the display to achieve higher overall resolution while maintaining compatibility with standard controllers in most regions, balancing resolution improvement with ease of manufacture.
2Measurement precision
If smaller LEDs are used to increase resolution, then display resolution is improved, but manufacturing precision requirements increase
Solution Approach 1:
The display uses a segmented pixel design where each pixel contains a limited number of light sources (three or four). This segmentation allows for larger individual LED sizes compared to fully dense pixel designs, reducing the precision requirements for LED placement while still achieving high overall display resolution through the alternating pixel pattern.
3Ease of manufacture
If standard RGB colors are used, then ease of manufacture is improved, but adaptability to different display requirements is limited
Solution Approach 1:
The pixel design uses universal RGB light sources that can be controlled in multiple configurations. The same physical pixels can function as standard 1R1G1B pixels or be combined to form virtual pixels with extended color capabilities. This multi-functionality allows the display to maintain ease of manufacture with standard components while adapting to different display requirements through software-controlled pixel combinations.
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 effectively doubles the resolution of LED displays by using standard RGB colors, allowing for efficient and compact pixel arrangements, and enabling the use of smaller LEDs and tighter assemblies, while maintaining compatibility with existing display controllers.
Implementation Method 1
Each first pixel and each second pixel comprises exactly three light sources of different colors... each first pixel and each second pixel comprise one red light source, one green light source and one blue light source
Data Source
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AI summary
The present invention provides a display device (400, 500) for displaying color image data (403, 503), the display device (400, 500) comprising a plurality of first dedicated pixels (101 a, 101b, 101c, 101d, 101x) comprising a square shape, and a plurality of second dedicated pixels (102) comprising a rectangular shape, wherein the first dedicated pixels (101 a, 101 b, 101 c, 101 d, 101 x) and the second dedicated pixels (102) are arranged interlaced to form a display surface, and wherein each first dedicated pixel (101 a, 101b, 101c, 101d, 101x) and each second dedicated pixel (102) comprises exactly three light sources of different colors. Further, the present invention provides a respective assembly method.