RGBW AMOLED Subpixel Ratio Control for Service Life Extension
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Solution Overview
Problem
The service lives of RGB subpixels differ from those of W subpixels in white-light AMOLED panels with a RGBW display mode due to varying usage conditions, leading to shortened service life of the display panel as a whole.
Innovation Solution
An image processing apparatus and method that converts three-color source data into four-color data, adjusting the ratio of the white subpixel's data based on calculated display values to equalize the usage conditions of all subpixels, thereby extending the service life of the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If the white subpixel is used to replace RGB subpixels at a fixed ratio to reduce power consumption or increase brightness, then power consumption is reduced or brightness is increased, but the service lives of white subpixels and RGB subpixels become uneven, shortening the overall service life of the display panel
Solution Approach 1:
The patent applies dynamics by making the white subpixel usage ratio variable rather than fixed. The conversion ratio between RGB and W subpixels is adjusted dynamically based on the displayed image content and usage statistics, allowing the system to optimize between power consumption and service life balance according to different operating conditions
Solution Approach 2:
The patent implements feedback mechanisms by monitoring the usage conditions of different subpixels and using this information to adjust the conversion ratio. The system tracks how often each subpixel type is used and modifies the RGB-to-W conversion strategy accordingly, creating a closed-loop control that balances power consumption with service life extension
2Illumination intensity
If the white subpixel is used to replace RGB subpixels at a fixed ratio to increase display brightness, then display brightness is increased, but the service lives of white subpixels and RGB subpixels become uneven, shortening the overall service life of the display panel
Solution Approach 1:
The patent applies dynamics by making the white subpixel usage ratio variable rather than fixed. The conversion ratio between RGB and W subpixels is adjusted dynamically based on the displayed image content and usage statistics, allowing the system to optimize between power consumption and service life balance according to different operating conditions
Solution Approach 2:
The patent implements feedback mechanisms by monitoring the usage conditions of different subpixels and using this information to adjust the conversion ratio. The system tracks how often each subpixel type is used and modifies the RGB-to-W conversion strategy accordingly, creating a closed-loop control that balances power consumption with service life extension
Data Source
AI summary
The image processing apparatus according to the present disclosure may include a reception module configured to receive three-color source data from the outside, and acquire a minimum value of the three-color source data; a data conversion module configured to convert the three-color source data into four-color data including a fourth color, and output the four-color data, a value of data of the fourth color in the four-color data being determined in accordance with the minimum value of the three-color source data and a first ratio of the data of the fourth color; a calculating module configured to calculate display values of the four-color data; and an adjustment module configured to control the data conversion module to adjust the first ratio of the data of the fourth color in accordance with the display values of the four-color data calculated by the calculating module.