Display Panel Chromaticity Adjustment via Driving Voltage
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Solution Overview
Problem
Existing display panels face limitations in improving white picture chromaticity without altering their design or manufacturing processes, as they are typically designed to be compatible with specific backlight modules, restricting chromaticity adjustments.
Innovation Solution
A method and device for chromaticity adjustment in display panels, which involves determining an initial driving voltage for the highest gray scale, acquiring the initial white picture chromaticity, and adjusting it to match a target chromaticity by adjusting pixel driving voltages or white balance components, allowing for precise adjustments without changing the panel's design or manufacturing processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the design of the display panel is determined and not changed, then the manufacturing process remains stable, but the white picture chromaticity cannot be improved to meet target requirements
Solution Approach 1:
The patent changes the driving voltage parameters of sub-pixels to adjust the white picture chromaticity. By modifying the voltage applied to red, green, and blue sub-pixels independently, the chromaticity can be tuned to meet target requirements without changing the physical design or manufacturing process of the display panel.
Solution Approach 2:
The patent introduces dynamic adjustment capability through driving voltage control. The chromaticity can be adjusted in real-time by changing voltage parameters during operation, making the display panel adaptable to different chromaticity requirements without physical modifications.
2Adaptability or versatility
If a same backlight module needs to be compatible with different specifications of display panels, then the backlight module design remains simple, but the white picture chromaticity of each display panel may not meet specific requirements
Solution Approach 1:
The patent makes the display panel universally compatible with different backlight modules by using driving voltage adjustment as a universal solution. The same backlight module can be paired with different display panels, and each panel can achieve its target chromaticity through independent voltage parameter tuning, eliminating the need for custom backlight designs.
Solution Approach 2:
By changing driving voltage parameters, the display panel can adapt to work with a universal backlight module while still achieving panel-specific chromaticity requirements. This parameter-based adaptation allows one backlight module to serve multiple display panel specifications.
3Manufacturing precision
If driving voltages of all sub-pixels are adjusted, then the white picture chromaticity can be precisely controlled, but the control complexity increases
Solution Approach 1:
The patent applies local quality adjustment by independently controlling the driving voltages of red, green, and blue sub-pixels. Each sub-pixel type can be adjusted with different voltage values to achieve the desired chromaticity, allowing precise control while maintaining manageable complexity through targeted adjustments.
Data Source
AI summary
The present application discloses a chromaticity adjustment method and an adjustment device of a display panel. The chromaticity adjustment method of the display panel includes: determining an initial driving voltage corresponding to a highest gray scale of the display panel; acquiring an initial white picture chromaticity of the display panel based on the initial driving voltage; determining whether the initial white picture chromaticity deviates from a target white picture chromaticity; if the initial white picture chromaticity deviates from the target white picture chromaticity, adjusting the initial driving voltage to adjust the initial white picture chromaticity.