Display Panel Clock Signal Control for 3D Crosstalk Reduction
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Solution Overview
Problem
Liquid crystal display apparatuses face issues with crosstalk and reduced luminance when displaying 3D images due to response delays, leading to deteriorated display quality and decreased luminance.
Innovation Solution
A method of driving a display panel using a first clock signal with a first frequency and a second clock signal with a different frequency to control frame periods, minimizing crosstalk and maintaining luminance by synchronizing the light source with the frame periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the light source is turned off during N-th frame to prevent crosstalk, then crosstalk is reduced, but luminance decreases
Solution Approach 1:
The patent applies dynamics by making the frame period duration variable rather than fixed. The timing controller dynamically adjusts the frame period based on the clock signal frequency, allowing flexible control of display timing to prevent crosstalk while maintaining luminance through synchronized light source control.
Solution Approach 2:
The patent changes the parameter of frame period duration by using different clock signal frequencies. By providing a first clock signal with a first frequency and a second clock signal with a second frequency, the system adjusts timing parameters to optimize both crosstalk prevention and luminance maintenance.
2Device complexity
If a single clock signal frequency is used, then device complexity is low, but display quality deteriorates due to crosstalk
Solution Approach 1:
The patent segments the clock signal provision into multiple frequency components. Instead of using a single clock signal, the timing controller provides different clock signals with different frequencies for different frames, dividing the display operation into distinct timing segments that prevent crosstalk.
Solution Approach 2:
The patent implements periodic action by alternately using different clock signal frequencies for different frames. The timing controller periodically switches between first and second clock signals, creating a rhythmic pattern of timing adjustments that systematically prevent crosstalk while maintaining display quality.
Data Source
AI summary
A method of driving a display panel includes providing a first clock signal having a first frequency and a second clock signal having a second frequency different from the first frequency. The method also includes providing a data signal of an N-th frame image to the display panel using the first clock signal, and providing a data signal of an (N+1)-th frame image to the display panel using the second clock signal. N is a natural number.