Image Display Apparatus Backlight Luminance and Saturation Optimization
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Solution Overview
Problem
Conventional image display apparatuses face challenges in maintaining display quality while reducing power consumption, often leading to increased noise and color distortion when adjusting backlight luminance in bright environments.
Innovation Solution
An image display apparatus comprising an image content analyzer, luminance compensator, and image optimization processor that adjusts image data luminance and saturation based on ambient luminance, using weight functions to optimize image quality and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the luminance of the backlight module is adjusted to the maximum level in bright outdoor environment, then the reflection from strong light is prevented, but the power consumption increases significantly
Solution Approach 1:
The patent changes the luminance parameter of the display image to compensate for reduced backlight luminance. By adjusting the image luminance parameter dynamically based on ambient light conditions, the system maintains visibility while operating at lower backlight power levels, thus resolving the contradiction between illumination intensity and power consumption
Solution Approach 2:
The system employs feedback mechanisms where the adjusted image luminance is processed through optimization processors that analyze the relationship between backlight luminance and image luminance. This feedback loop enables automatic adjustment of display parameters to maintain optimal visibility while minimizing power consumption
2Use of energy by moving object
If the luminance of the display image is increased to reduce backlight module luminance, then power consumption is reduced, but the quality of the display image deteriorates with increased noise and color distortion
Solution Approach 1:
The patent introduces an image optimization processor as an intermediary component between the luminance compensator and the display output. This processor applies optimization algorithms to the luminance-adjusted image data, correcting noise and color distortion while preserving the reduced power consumption benefits, thus mediating between power savings and image quality
Solution Approach 2:
The system dynamically changes multiple image parameters including luminance, saturation, and contrast through coordinated adjustment. The image optimization processor modifies these parameters based on the luminance adjustment value, ensuring that image quality metrics are maintained even when backlight luminance is reduced for lower power consumption
Data Source
AI summary
An image display apparatus and an image optimization method are provided. The image display apparatus includes an image content analyzer, a luminance compensator, and an image optimization processor The image content analyzer receives image data and ambient luminance and generates a backlight luminance adjustment value according to the image data and the ambient luminance. The luminance compensator generates an image data luminance adjustment value according to the backlight luminance adjustment value and generates first image data by adjusting the luminance of the image data according to the image data luminance adjustment value. The image optimization processor generates a saturation adjustment weight according to the image data luminance adjustment value. According to the saturation adjustment weight, the image optimization processor generates output image data by adjusting the luminance of the first image data.