RGBW Display Panel Subpixel Matrix for Brightness and Power
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Solution Overview
Problem
As display panels increase in size and resolution, power consumption rises, and existing WRGB display panels face challenges with reduced aperture ratio, increased wiring, and vertical bright bars due to added white subpixels, which complicate manufacturing and affect yield and brightness distribution.
Innovation Solution
A display panel with a new RGBW pixel matrix structure, where subpixel columns are arranged with 2N first color subpixels, 2N second color subpixels offset by a predetermined pitch, and alternate N third color and N white subpixels, combined with a subpixel rendering algorithm to form pixel units, enhancing transmittance, reducing wiring, and improving aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If white sub pixels are added to form WRGB display panel, then brightness is improved and power consumption is reduced, but aperture ratio is reduced and wiring is increased
Solution Approach 1:
The patent divides the sub pixel columns into different types: first sub pixel columns with 2N color sub pixels, second sub pixel columns with 2N color sub pixels offset by a predetermined pitch, and third sub pixel columns with alternate N color and N white sub pixels. This segmentation allows selective placement of white sub pixels only in specific columns, reducing overall white sub pixel density while maintaining brightness benefits.
Solution Approach 2:
The patent applies different sub pixel configurations to different column regions. Third sub pixel columns contain white sub pixels for brightness enhancement, while first and second sub pixel columns use only color sub pixels. This local differentiation optimizes the balance between brightness improvement and aperture ratio preservation.
2Use of energy by moving object
If white sub pixels are added to form WRGB display panel, then brightness is improved and power consumption is reduced, but manufacturing complexity is increased
Solution Approach 1:
The patent segments sub pixel columns into three distinct types with different configurations, allowing standardized manufacturing processes for each column type while achieving complex WRGB functionality. This segmentation simplifies the manufacturing process by treating each column type with dedicated, optimized fabrication steps.
Solution Approach 2:
The patent introduces a dimensional approach by offsetting second sub pixel columns by a predetermined pitch relative to first sub pixel columns, and arranging third sub pixel columns with alternate patterns. This spatial arrangement in multiple dimensions enables WRGB functionality without proportionally increasing manufacturing complexity.
3Illumination intensity
If white sub pixels are arranged in stripe shapes, then brightness is improved, but vertical bright bars occur and PPI is reduced
Solution Approach 1:
The patent places white sub pixels locally only in third sub pixel columns rather than uniformly across all columns. This localized arrangement prevents the formation of continuous vertical bright bars while maintaining brightness enhancement in specific regions, creating a more uniform overall brightness distribution.
Solution Approach 2:
By segmenting sub pixel columns into different types with different white sub pixel contents, the patent creates a non-uniform distribution pattern that breaks up vertical bright bar artifacts. The alternating pattern of color-only and color-white mixed columns prevents continuous vertical brightness artifacts.
Data Source
AI summary
Provided is a display panel, a display device and a display method. The display panel includes at least a first sub pixel column to a third sub pixel column that are sequentially arranged. The first sub pixel column is formed of 2N first color sub pixels, wherein N is a positive integer; the second sub pixel column is formed of 2N second color sub pixels and is offset by a predetermined pitch in a column direction with respect to the first sub pixel column; and the third sub pixel column is formed of alternate N third color sub pixels and N white sub pixels. Each of the second color sub pixels together forms a pixel unit with its adjacent white sub pixel, third color sub pixel and two first color sub pixels, to perform display. The present disclosure may provide a better display effect.