OLED Image Processing for Power Reduction
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Solution Overview
Problem
OLED display devices face high power consumption and poor luminance due to the method of applying color filters on RGB elements, which is inefficient and increases energy usage.
Innovation Solution
An image processing method for OLED display devices that optimizes blue data by determining if the frequency in a region is below a threshold, substituting blue data with a minimum value or decreasing it by a ratio, thereby reducing power consumption without degrading screen quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If color filters are applied on RGB elements, then processing is easy and area is increased, but luminance is poor and power consumption is increased
Solution Approach 1:
The patent applies different processing methods to different regions of the image based on frequency characteristics. Low-frequency regions have their blue data minimized to reduce power consumption, while high-frequency regions maintain original data to preserve quality, achieving local optimization that resolves the contradiction between power savings and quality maintenance
2Ease of manufacture
If color filters are applied on RGB elements, then processing is easy and area is increased, but luminance is poor
Solution Approach 1:
The patent selectively processes different regions based on frequency analysis. By identifying low-frequency regions and applying blue data minimization only to those areas, the system maintains luminance in critical high-frequency regions while reducing power consumption in low-frequency regions, thus resolving the contradiction between processing ease and luminance quality
3Use of energy by stationary object
If blue data is minimized in low-frequency regions, then power consumption is reduced, but screen quality may be degraded
Solution Approach 1:
The patent applies frequency-based regional processing where blue data minimization is applied selectively to low-frequency regions only. High-frequency regions retain their original blue data to maintain screen quality, while low-frequency regions undergo minimization to reduce power consumption, thus resolving the contradiction between power savings and quality preservation
Solution Approach 2:
The patent changes the blue data parameter differently based on frequency characteristics. By analyzing frequency and applying different processing parameters (minimization for low-frequency, no change for high-frequency), the system optimizes power consumption without degrading overall screen quality, resolving the contradiction between energy efficiency and display quality
Data Source
AI summary
Disclosed is an image processing method for reducing power consumption of an OLED display device. A method of the present invention comprises the steps of: receiving image data; determining whether a frequency of a predetermined area of the image data is lower than a predetermined reference; deciding a minimum value among a plurality of blue data values of the predetermined area when the frequency of the predetermined area is lower than the reference as a result of the determination; and changing blue data of the predetermined area on the basis of the determined minimum value.