Multi-Depth Display System Using Monochrome Screen for Energy Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices require high amounts of light to illuminate color images at different depths, leading to increased energy consumption and reduced battery life in portable devices due to light attenuation by color filters and black matrices.
Innovation Solution
The use of a method to process images for display on both color and monochrome screens, where the overlap of these images generates a resultant image at varying depths, with the monochrome screen having fewer or no color filters and lower resolution, allowing less light to be used for illumination, thereby reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional color display screens are used to display color images at different depths, then the visual effect is impressive, but the amount of light required is high leading to increased energy consumption
Solution Approach 1:
The display system is segmented into multiple display screens positioned at different depths, with each screen displaying images optimized for its specific depth plane. This allows selective illumination of only the necessary display planes, reducing overall light requirements and energy consumption while maintaining the impressive visual effect of multi-depth color imaging.
Solution Approach 2:
Different display screens at different depths are assigned different image processing characteristics - closer screens display sharper images while farther screens display blurrier images. This local optimization allows each screen to use appropriate illumination levels for its depth position, reducing total energy consumption compared to uniformly illuminating all screens at full intensity.
2Measurement precision
If high resolution color display screens are used, then image quality is improved, but light is attenuated by small pixel apertures requiring more backlight energy
Solution Approach 1:
The system uses display screens with varying resolutions appropriate to their depth positions. Closer screens use higher resolution for sharpness, while farther screens use lower resolution since human perception cannot resolve fine details at those distances. This partial application of high resolution only where necessary reduces the total backlight energy required while maintaining adequate image quality.
3Ease of manufacture
If color filters and black matrices are used in conventional display screens, then color image display is achieved, but light is significantly attenuated reducing display efficiency
Solution Approach 1:
The system changes the optical parameters of different display screens based on their depth positions and functional requirements. Some display screens use conventional color filters and black matrices for accurate color reproduction at close distances, while other screens at greater distances use modified optical characteristics with reduced filtering, allowing more light to pass through and reducing overall energy loss while maintaining color display capability.
Data Source
AI summary
Image processing may be performed to generate a color image for display on a color display screen and a monochrome image for display on a monochrome display screen, where an overlap of the images may produce a resultant color image at one or more depths. The one or more depths may be determined by an amount of blur applied to one image and an amount of sharpness applied to other. The one or more depths may be determined by a gamma value of the monochrome image. Since the monochrome display screen may have fewer or no color filters and/or a lower resolution, the monochrome display screen may pass more light than conventional color display screens. As such, less light can be used to illuminate color images displayed at different depths using a color display screen and a monochrome display screen, thereby reducing energy consumption of the display device.