3D LCD Anti-Crosstalk via Temperature-Adaptive Backlight Delay
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Solution Overview
Problem
Current 3D liquid crystal display technologies face significant 3D crosstalk issues at lower temperatures due to the synchronization mismatch between image switching and backlight activation, leading to a less clear and less realistic 3D image experience.
Innovation Solution
An anti-crosstalk method and apparatus that acquires the current temperature value, determines the corresponding backlight on delay duration using a prestored mapping relationship, and adjusts the backlight activation time to synchronize with image switching, thereby reducing 3D crosstalk by adjusting the backlight on time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the liquid crystal screen response speed is improved, then the 3D crosstalk is reduced, but the temperature sensitivity increases causing synchronization failure at low temperatures
Solution Approach 1:
The backlight on time node is made dynamically adjustable based on temperature conditions. The system transitions from a fixed backlight timing scheme to a dynamic one that adapts to temperature changes, allowing the backlight on time node to be delayed when temperature is low to match the slower liquid crystal response speed, thereby maintaining synchronization reliability across different temperature conditions
Solution Approach 2:
The invention changes the timing parameter (backlight on time node) based on temperature conditions. By establishing a mapping relationship between temperature and delay duration, the system adjusts the backlight on time node parameter dynamically, transforming it from a static parameter to one that varies with environmental conditions, thus resolving the synchronization issue at low temperatures
2Temperature
If the environment temperature decreases, then the liquid crystal response speed decreases, but the image switching synchronization with backlight on time node fails causing increased 3D crosstalk
Solution Approach 1:
The system performs preliminary temperature detection and calculates the appropriate delay duration before executing the image switching and backlight activation. By acquiring the current temperature value and determining the corresponding delay duration in advance, the system prepares the correct timing parameter before the actual display operation, ensuring synchronization is maintained even at low temperatures
Solution Approach 2:
The system implements a feedback mechanism where the temperature value is continuously monitored and used to adjust the backlight on time node. The mapping relationship between temperature and delay duration creates a closed-loop control system that automatically compensates for temperature-induced response speed changes, maintaining synchronization without manual intervention
Data Source
AI summary
Disclosed are an anti-crosstalk method and apparatus for an image of a 3D liquid crystal display apparatus. The method comprises: determining, according to a prestored mapping relationship between a temperature value and backlight on delay duration, backlight on delay duration corresponding to a current temperature value of a 3D liquid crystal display apparatus, performing delay adjustment on a backlight on time node according to the determined delay duration, and controlling a backlight source to be switched on according to the time node after delay adjustment. An on time of a backlight source is correspondingly adjusted at a different temperature, so that time nodes of image switching and switch-on of a backlight are synchronized, thereby reducing the occurrence of a 3D display crosstalk of a 3D liquid crystal display apparatus to enable a user to browse a clearer and more realistic 3D image.