Display Driving Method Reduces Side View Color Cast
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Solution Overview
Problem
Display devices experience significant color cast and brightness differences when viewed from the side compared to the front, particularly with red, green, and blue color schemes, due to varying gray scale and light source intensities, leading to an unsatisfactory viewing experience.
Innovation Solution
A display driving method that acquires original gray scale and light source intensity data, divides it into two groups, and adjusts the driving light source intensities to ensure the dominant color is highlighted, reducing color cast by maintaining the same overall brightness across different viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the original gray scale data is displayed directly without division, then the display process is simple, but the side view color cast is severe and brightness difference between front and side views is large
Solution Approach 1:
The original gray scale data group is divided into a first gray scale data group and a second gray scale data group based on the maximum gray scale value. This segmentation allows different processing strategies for different gray scale levels, specifically excluding minimum gray scale values from the first group to reduce side view brightness differences while maintaining front view quality.
2Manufacturing precision
If the gray scale data is divided into two groups with specific processing, then the color cast is reduced and hue consistency is improved, but the processing complexity increases
Solution Approach 1:
Different gray scale data groups are processed differently based on their local characteristics. The first gray scale data group excludes minimum gray scale values to improve color accuracy in specific regions, while the second group handles remaining data. This localized processing approach reduces color cast without requiring complete reprocessing of all data.
Solution Approach 2:
The invention changes the parameter of gray scale value distribution by dividing data based on maximum gray scale and excluding minimum gray scale values from the first group. This parameter change optimizes the driving light source intensities for different hues, reducing color cast and improving hue consistency across viewing angles.
3Manufacturing precision
If the driving light source intensities are adjusted based on divided gray scale groups, then the dominant color is highlighted and color cast is reduced, but the calculation complexity increases
Solution Approach 1:
The gray scale data group is divided into first and second groups in advance, with minimum gray scale values excluded from the first group before calculating driving light source intensities. This preliminary action simplifies the subsequent calculation process by pre-organizing data, making it easier to determine the dominant hue and calculate appropriate driving parameters without handling all raw data simultaneously.
Data Source
AI summary
The present disclosure relates to a display driving method, device and device, an original gray scale data group of the pixel units in the preset display area and of the content to be displayed is acquired; average gray scales of each of the hues in the preset display area are determined according to the original gray scale data group; original light source intensities of the hues in the preset display area and of the content to be displayed are acquired; the original gray scale data group is divided into a first gray scale data group and a second gray scale data group and the driving light source intensities of each of the hues in the preset display area are determined according to the original gray scale data group of the pixel units, the average gray scales of each of the hues, and the original light source intensities; the gray scales of each of the hues of the first gray scale data group are the maximal gray scale in the original gray scale data group; the gray scales of each of the hues of the second gray scale data group are 0 or greater than the minimal gray scale of the original gray scale data group. The brightness difference between the hue of the low gray scale of the side view angle and the hue of the overall pixel unit is reduced, such that the hue of the side view angle is presented close to the hue of the front view angle.