Display Data Processing for Power Reduction via Histogram Equalization
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Solution Overview
Problem
The rapid advancement of display technology in mobile smart devices, particularly the transition from LCD to OLED, increases power consumption, leading to reduced usage time due to high energy demands, and existing methods to reduce power consumption, such as lowering overall brightness, result in a degraded user experience, especially in outdoor environments.
Innovation Solution
A display method that processes data in RGB format by performing contrast and brightness adjustments, including histogram equalization and gray level adjustments, before converting it to MIPI format for display, to enhance image quality while reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the overall brightness of the display is reduced to lower power consumption, then energy consumption decreases, but the display effect deteriorates and user experience is degraded
Solution Approach 1:
The patent applies local quality by performing histogram equalization on grayscale data to selectively adjust different brightness regions. Instead of uniformly reducing overall brightness, the processing unit redistributes grayscale values locally, maintaining visual quality in critical areas while reducing power consumption in less critical areas. This allows differential brightness control across different parts of the display content.
Solution Approach 2:
The patent changes parameters by transforming RGB format display data to grayscale format and applying histogram equalization to redistribute grayscale values. The processing unit modifies the grayscale parameter distribution to maintain perceived brightness and contrast while reducing peak luminance values, thereby lowering power consumption without significantly degrading display quality.
2Use of energy by moving object
If the overall brightness of the display is reduced to lower power consumption, then energy consumption decreases, but display quality and image clarity are compromised
Solution Approach 1:
The patent transforms display data from RGB color space to grayscale format and applies histogram equalization to optimize the grayscale parameter distribution. This parameter transformation maintains essential visual information while reducing overall luminance levels, achieving power savings without significant loss of display quality or image clarity.
Solution Approach 2:
The patent introduces grayscale format as an intermediary representation between the original RGB display data and the final output. By converting to grayscale and applying histogram equalization, the system creates an intermediate processing stage that preserves essential visual information while enabling power consumption reduction through controlled luminance adjustment.
Data Source
AI summary
The preset disclosure provides a display method, a display device and a display. The display method includes: transmitting data to be displayed to a processing unit in an RGB format after acquiring the data to be displayed; performing contrast adjustment and brightness adjustment on the data to be displayed in the RGB format by the processing unit, and transmitting the processed data to be displayed to a conversion unit; converting the processed data to be displayed into data in an MIPI format by the conversion unit, and displaying the data to be displayed in the MIPI format.