Display Driving Device Brightness Offset Correction for Edge Blur
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Solution Overview
Problem
Conventional liquid crystal display systems experience image blur at the edges due to resolution mismatch between the first and second liquid crystal panels, leading to suboptimal contrast and perceptual resolution.
Innovation Solution
A display driving device and method that calculates and applies offsets to input image data, utilizing a brightness calculator and offset calculator to generate output image data for the first panel and output brightness data for the second panel, effectively managing brightness and reducing edge blur.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a second liquid crystal panel with lower resolution is provided between the backlight and the first liquid crystal panel, then high contrast and high-quality image representation are achieved, but image blur occurs at the edges due to resolution mismatch
Solution Approach 1:
The patent applies brightness offset correction by changing the brightness parameters of the image data. The offset calculator calculates the difference in brightness between corresponding pixels of the first and second liquid crystal panels, and the input image converter adds this offset to the input image data to compensate for the resolution mismatch and prevent edge blur, thereby maintaining both high contrast and image sharpness.
2Measurement precision
If the first liquid crystal panel has higher resolution than the second liquid crystal panel, then high-quality image display is achieved, but resolution mismatch causes blur at image edges
Solution Approach 1:
The patent modifies the brightness parameters of the input image data by calculating and applying a brightness offset. This parameter change compensates for the resolution difference between the two panels, ensuring that the higher resolution of the first panel is effectively utilized while preventing edge blur caused by the second panel's lower resolution.
3Manufacturing precision
If brightness offset correction is applied to compensate for resolution mismatch, then edge blur is prevented and perceptual resolution is improved, but additional processing complexity is introduced
Solution Approach 1:
The patent introduces an intermediary processing stage between the input image data and the liquid crystal panels. The offset calculator and input image converter act as intermediaries that automatically compute and apply brightness corrections, thereby preventing edge blur without requiring complex hardware modifications or manual adjustments.
Data Source
AI summary
A display driving device for improving the definition of an image according to one aspect of the present invention includes a brightness calculator for calculating first brightness data corresponding to a first resolution and second brightness data corresponding to a second resolution less than the first resolution using input image data, an offset calculator for calculating an offset on the basis of the first brightness data and the second brightness data, an input image converter for converting the input image data into input image data to which the calculated offset has been applied, a first data output unit for generating output image data for a first panel using the converted input image data and outputting the generated output image data, and a second data output unit for generating output brightness data for a second panel using the second brightness data and outputting the generated output brightness data.