Dual-Panel Display Luminance Control for Flicker Suppression
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Solution Overview
Problem
Existing image processing devices fail to effectively adjust the luminance of peripheral cells when an image smaller in size and with higher luminance than surrounding images moves across cell boundaries, leading to issues like flicker.
Innovation Solution
An image processing device that generates first data to control the transmission amount of light in a first panel and second data to control the transmission amount of light in a second panel, using a first data generation unit and a second data generation unit to adjust luminance based on input image data and pixel positions, with mechanisms to suppress flicker and account for distance and luminance influences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If control for adjusting luminance of peripheral cells is not performed when a high-luminance image moves across cell boundaries, then device complexity is reduced, but flicker occurs and image quality deteriorates
Solution Approach 1:
The patent calculates the position of high-luminance images and determines which cells will be affected in advance. By pre-identifying the first cell containing the high-luminance image and the surrounding peripheral cells, the system prepares the luminance adjustment control before the image actually moves across boundaries, preventing flicker without requiring complex real-time response mechanisms.
Solution Approach 2:
The patent applies luminance adjustment control locally only to specific peripheral cells surrounding the first cell containing the high-luminance image, rather than adjusting all cells uniformly. This localized approach maintains image stability where needed while avoiding unnecessary control operations in other regions, reducing overall system complexity.
2Reliability
If luminance adjustment control is applied to peripheral cells when high-luminance images move across boundaries, then image quality is improved, but device complexity increases
Solution Approach 1:
The system performs preliminary calculations to identify the first cell containing the high-luminance image and determines the set of peripheral cells that need adjustment before executing the luminance control. This advance preparation simplifies the control mechanism by avoiding complex real-time detection and response systems.
Solution Approach 2:
The luminance adjustment is applied selectively only to the identified peripheral cells surrounding the first cell, rather than uniformly to all cells in the display panel. This localized control approach improves image stability at the problem areas while keeping the overall control mechanism simpler.
3Ease of manufacture
If the first panel uses a lower resolution than the second panel, then manufacturing cost is reduced, but image quality when displaying high-luminance images deteriorates
Solution Approach 1:
The patent applies luminance adjustment control specifically to peripheral cells surrounding the first cell that contains the high-luminance image, rather than requiring the entire first panel to have high resolution. This localized control approach maintains good image quality for high-luminance content while allowing the first panel to use lower-resolution, cost-effective materials and manufacturing processes.
Solution Approach 2:
The display system is segmented into two panels with different resolutions, where the first panel (lower resolution) handles general display and the second panel (higher resolution) provides enhanced detail. The luminance control mechanism compensates for the resolution difference in specific regions, allowing cost-effective manufacturing while maintaining image quality where it matters most.
Data Source
AI summary
In an image processing device, a first data generation unit generates first data for a first cell based on input luminance of a plurality of first pixels specified by input image data and input luminance and positions of a plurality of second pixels specified by the input image data.