Color Filter Array Brightness via Transparent Pixel Segmentation
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Solution Overview
Problem
Traditional display panels with RGB color filters suffer from poor light efficiency due to the blocking of certain wavelengths of light by each filter, resulting in reduced image brightness.
Innovation Solution
A color filter array is introduced that includes pixels with a combination of red, green, blue, and transparent filters, where each pixel lacks one of these filters, allowing for enhanced brightness without sacrificing resolution by using a sequence of pixels with alternating filter configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional RGB color filters are used in display panels, then color display capability is achieved, but light efficiency deteriorates due to blocking of certain wavelengths
Solution Approach 1:
The invention divides the display into multiple pixel types (first pixels with green, blue, and transparent filters; second pixels with red, blue, and transparent filters; third pixels with red, green, and transparent filters; fourth pixels with red, green, and blue filters). This segmentation allows different pixel regions to use different filter combinations, optimizing light transmission while maintaining color display capability.
Solution Approach 2:
Different pixels are assigned different filter configurations based on their local position in the array. Specifically, first pixels lack red filters, second pixels lack green filters, third pixels lack blue filters, and fourth pixels have all three color filters. This local differentiation allows each pixel to optimize for either color accuracy or light transmission depending on its position.
2Illumination intensity
If transparent filters are added to increase brightness, then light transmission is improved, but device complexity increases
Solution Approach 1:
The transparent filter serves multiple functions: it allows light transmission to increase brightness, and it compensates for the missing color filter in each pixel type to maintain color balance. This multi-functionality reduces the need for additional separate components.
Solution Approach 2:
The invention merges the color filtering function and the light transmission function into a single integrated filter array structure. The transparent filters are combined with the color filters in specific pixel configurations, eliminating the need for separate brightness enhancement components.
3Manufacturing precision
If more filter types are used per pixel to improve color accuracy, then color quality is enhanced, but light efficiency deteriorates further
Solution Approach 1:
Not all pixels need complete RGB filters to achieve acceptable color accuracy. The invention uses partial color filtering in some pixels (first, second, and third pixel types) combined with transparent filters, while only the fourth pixel type has all three color filters. This partial action approach maintains overall color quality while significantly improving 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
The solution increases image brightness by allowing more light to pass through while maintaining the same display resolution, as the transparent filter compensates for the lack of one color filter in each pixel, ensuring even distribution of filters to maintain image quality.
Implementation Method 1
the red filter R blocks the green light and the blue light, the green filter G blocks the red light and the blue light, and the blue filter B blocks the red light and the green light
Implementation Method 2
a first pixel, a second pixel, a third pixel and a fourth pixel. The first pixel is consisted of a green filter, a blue filter and a transparent filter
Data Source
AI summary
A color filter array suitable for a display panel is provided. The color filter array includes a first pixel, a second pixel, a third pixel and a forth pixel. The first pixel is consisted of a green filter, a blue filter and a transparent filter. The second pixel is consisted of a red filter, a blue filter and a transparent filter. The third pixel is consisted of a red filter, a green filter and a transparent filter. The fourth pixel is consisted of a red filter, a blue filter and a green filter. The architecture of the color filter array is able to increase the image brightness of the display panel.