Display Gamma-Value Adjustment for Picture Quality Consistency
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Solution Overview
Problem
Mass-produced displayers often fail to achieve the same picture quality as a standard-PQ-displayer due to individual performance deviations caused by manufacturing accuracy and quality control issues, leading to inconsistent brightness and color across devices of the same model.
Innovation Solution
A method and device that adjust the Gamma-value of a to-be-adjusted-displayer to match a target value by computing a corresponding Gamma-value using a preset algorithm based on the standard-PQ-displayer's values, allowing for adaptive picture quality adjustment regardless of component consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If adjusting data from a standard-PQ-displayer is applied to mass-produced displayers, then picture quality adjustment can be performed, but individual performance deviations cause inconsistent picture quality across devices
Solution Approach 1:
The patent changes the adjustment parameter from fixed adjusting data to dynamic Gamma-value-based adjustment. By measuring the actual Gamma-value of each to-be-adjusted displayer and using it to compute a correction value, the system adapts the adjustment to individual device characteristics, resolving the contradiction between manufacturing precision and adjustment accuracy.
Solution Approach 2:
The patent introduces a feedback mechanism where the actual Gamma-value of each displayer is measured and used to compute a correction value. This feedback loop ensures that the adjustment is based on real device performance rather than assumed standard values, thereby achieving consistent picture quality across mass-produced devices.
2Manufacturing precision
If strictly controlling components in consistency to reduce performance difference, then manufacturing complexity increases, but picture quality cannot be assured to match standard-PQ-displayer
Solution Approach 1:
The patent extracts the adjustment process from the manufacturing control process. Instead of trying to control component consistency during manufacturing, the system measures the actual Gamma-value of each device and computes an individual correction value, separating the adjustment function from the manufacturing function and reducing control complexity.
Solution Approach 2:
The patent enables each displayer to self-adjust based on its own measured Gamma-value. Each device performs its own adjustment using its specific characteristics, eliminating the need for complex centralized control and achieving individual optimization without increasing overall system complexity.
3Ease of manufacture
If applying standard-PQ-displayer adjusting data to to-be-adjusted displayers, then adjustment process can be simplified, but picture quality deviation occurs due to individual differences
Solution Approach 1:
The patent changes the adjustment approach from applying fixed standard data to computing individualized correction values based on measured Gamma-values. This parameter change maintains the simplicity of the adjustment process while achieving consistent picture quality across devices with different individual characteristics.
Data Source
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AI summary
The present disclosure discloses a method for adjusting picture quality of displayer, including: adjusting a core of a to-be-adjusted-displayer to make Gamma-value of the to-be-adjusted-displayer reach a target value under a preset gray scale, and taking the current Gamma-value of the core as γn under the preset value; computing the value of γn' corresponding to the to-be-adjusted-displayer by a preset algorithm based on the γn, the values of γ0 and γ0' corresponding to a standard-PQ-displayer, which are under one same gray scale; and adjusting picture quality of the to-be-adjusted-displayer according to the γn'. The present disclosure also discloses a device for adjusting picture quality of displayer.