Display Control via Signal Frequency Adjustment for Liquid Crystal Stabilization
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Solution Overview
Problem
Current display devices with MBR (Motion Blur Reduction) function suffer from poor motion blur reduction effects due to insufficient liquid crystal stabilization time, resulting in blurred moving pictures and smearing, as the backlight is turned on before the liquid crystals are fully flipped.
Innovation Solution
A display control method that involves frequency multiplying or dividing the input display signal to generate an output signal, ensuring the backlight is turned on based on the field frequency of the output signal, thereby increasing the liquid crystal stabilization time, allowing sufficient time for the liquid crystals to flip and stabilize.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the backlight is turned on at the VFP time of the input display signal, then the motion blur reduction function is implemented, but the liquid crystal stabilization time is insufficient resulting in blurred moving pictures and smearing
Solution Approach 1:
The patent applies preliminary action by frequency-multiplying the input display signal before backlight control. This pre-processing of the signal allows the system to prepare for adequate liquid crystal stabilization time before the backlight actually turns on, ensuring the liquid crystals have sufficient time to flip and stabilize while still achieving motion blur reduction when the backlight activates.
Solution Approach 2:
The patent uses dynamics by making the field frequency adjustable through frequency multiplication or division based on the input signal characteristics. This dynamic adjustment allows the system to optimize the timing between liquid crystal response and backlight activation, resolving the contradiction between achieving motion blur reduction and providing sufficient stabilization time.
2Duration of action of moving object
If the field frequency is increased to improve liquid crystal stabilization time, then the motion blur reduction effect improves, but the display device may not support the maximum field frequency
Solution Approach 1:
The patent applies dynamics by implementing frequency multiplication or division based on the input signal's field frequency and the display device's capabilities. The system dynamically adjusts the output field frequency to match what the display device supports while still providing sufficient stabilization time, rather than using a fixed frequency.
Solution Approach 2:
The patent uses parameter changes by modifying the field frequency parameter through frequency multiplication or division. This allows the system to transform the input signal into an output signal with appropriate frequency characteristics that match the display device's support range while maintaining adequate liquid crystal stabilization time for motion blur reduction.
Data Source
AI summary
The present application discloses a display control method, a display control apparatus, a control apparatus and a display device. The display control method comprises: frequency multiplying or dividing an input display signal to generate an output display signal based on the relationship between the field frequency of the input display signal and the maximum field frequency supported by a display apparatus, the field frequency of the output display signal being not less than the minimum field frequency supported by the display apparatus and not greater than the maximum field frequency supported by the display apparatus; and controlling a backlight module to be turned on based on the field frequency of the output display signal, so that the liquid crystal stabilization time is increased. With the present application, the motion blur reduction effect can be improved, the blurred moving pictures can be reduced, and the smearing can be reduced.