Display Panel Gamma Adjustment for White Point and Luminance Control
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Solution Overview
Problem
Existing display panel adjustment methods, such as single-gamma and gamma-3 adjustments, fail to account for varying conditions, leading to yield loss and luminance issues in products like VR devices.
Innovation Solution
An adjusting method that determines a target adjustment mode based on detection coordinate values, allowing for either grayscale coefficient adjustment alone or simultaneous adjustment of grayscale coefficient and white point position, ensuring both meet requirements while minimizing luminance loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If single-gamma adjustment mode is used, then the adjustment process is simple, but the white point position cannot be corrected leading to yield loss
Solution Approach 1:
The system dynamically selects between different adjustment modes (single-gamma or gamma-3) based on the detected white point position. When the white point position is within the target range, single-gamma mode is used for simplicity; when outside the range, gamma-3 mode is activated to correct both grayscale coefficient and white point position, thereby improving yield without unnecessary complexity.
2Manufacturing precision
If gamma-3 adjustment mode is used, then the white point position can be corrected, but luminance loss occurs
Solution Approach 1:
The system applies different adjustment strategies to different cases: when the white point position is already within the target range, only grayscale coefficient adjustment is performed (single-gamma mode) to avoid luminance loss; when the white point position is outside the target range, both grayscale coefficient and white point position are adjusted (gamma-3 mode) to ensure precision. This localized approach minimizes unnecessary luminance loss while maintaining required precision.
3Ease of operation
If fixed adjustment mode is used, then the adjustment process is straightforward, but it cannot adapt to varying display panel conditions
Solution Approach 1:
The system transitions from a fixed adjustment mode to a dynamic adaptive mode by detecting the white point position and automatically selecting the appropriate adjustment strategy. This dynamic selection process maintains operational simplicity through automation while significantly improving adaptability to different display panel conditions.
Solution Approach 2:
The system incorporates feedback by detecting the white point position and using this information to determine the appropriate adjustment mode. This feedback mechanism enables the system to adapt to varying conditions automatically, selecting single-gamma mode when conditions are favorable and gamma-3 mode when correction is needed, thus balancing simplicity and adaptability.
Data Source
AI summary
An adjusting method of a display panel, an adjusting apparatus of a display panel, an electronic device, a computer-readable storage medium. The adjusting method includes: acquiring a detection coordinate value of a white point of the display panel in work; determining a target adjustment mode from at least two adjustment modes according to the detection coordinate value, in which the at least two adjustment modes include a first adjustment mode and a second adjustment mode; adjusting some of parameters on the basis of the target adjustment mode, the parameters of the display panel include a grayscale coefficient and a white point setting position, adjusting the grayscale coefficient and taking the detection coordinate value as the white point setting position in the first adjustment mode, adjusting the grayscale coefficient and adjusting the white point setting position according to the detection coordinate value in the second adjustment mode.