Image Processing Device for Liquid Crystal Display Control Data
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Solution Overview
Problem
Existing liquid crystal display devices with three layers (color liquid crystal panel, monochrome liquid crystal panel, and backlight) have limited flexibility in combining control data, restricting variations in display characteristics and failing to fully exploit the capabilities of these layers.
Innovation Solution
An image processing device with separate units for generating, correcting, and distributing backlight and panel data, allowing independent control of light-emitting regions and aperture ratios, thereby increasing the degree of freedom in selecting control data combinations for enhanced display characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If control data for backlight, color liquid crystal panel, and monochrome liquid crystal panel are determined in fixed order with dependent relationships, then the control method is simple and easy to implement, but the degree of freedom in selecting control data combinations is limited and variations in display characteristics cannot be increased
Solution Approach 1:
The patent divides the control data generation process into separate functional units: backlight data generation unit, color liquid crystal panel data generation unit, and monochrome liquid crystal panel data generation unit. Each unit operates independently to generate control data for its respective component, enabling flexible combination selection without complex interdependencies. This segmentation allows the system to explore multiple control data combinations while maintaining implementation simplicity.
2Productivity
If control data for subsequent panels is determined on the basis of previously determined control data, then the control process is streamlined, but the capability of the liquid crystal display device is not thoroughly exploited and display characteristic variations are limited
Solution Approach 1:
The patent generates control data for each panel type independently rather than deriving subsequent panel data from previous panel data. Each generation unit creates its own control data based on the input image data and its specific panel characteristics, effectively 'copying' the image data through independent processing paths. This approach maintains processing efficiency while enabling diverse display characteristic variations.
3Adaptability or versatility
If the number of control data combinations is increased to exploit the three-layer capability, then display characteristic variations can be enhanced, but the control method becomes more complex and difficult to implement
Solution Approach 1:
Each data generation unit (backlight, color liquid crystal panel, monochrome liquid crystal panel) operates autonomously to generate its own control data without requiring manual coordination or complex external control logic. The units self-manage their respective control data generation processes, making the system easy to operate while supporting multiple control data combinations for enhanced display characteristics.
Data Source
AI summary
An image processing device generates backlight data from input image data to control outputs of a plurality of light-emitting regions; corrects the backlight data; generates luminance distribution data for the backlight from the backlight data that is corrected; generates second panel data from an input image data to control aperture ratios of a plurality of pixels; corrects the second panel data; generates luminance distribution data for the second liquid crystal panel from the second panel data that is corrected and the luminance distribution data for the backlight; and generates first panel data from the input image data and the luminance distribution data for the second liquid crystal panel to control aperture ratios of a plurality of picture elements.