3D Display Driving Method Optimizing Lateral Visibility and Transmittance
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Solution Overview
Problem
3D liquid crystal displays face challenges in maintaining lateral visibility and transmittance, leading to compromised display quality due to the deterioration of these characteristics when attempting to enhance 3D effects.
Innovation Solution
A method of driving a display device that involves displaying left and right eye images using different gamma curves in alternating frames, with specific timing and voltage control to optimize luminance and visibility, allowing adjacent pixels to display images based on different or the same gamma curves to improve lateral visibility and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If different voltages are applied to two subpixels to improve lateral visibility, then lateral visibility is improved, but transmittance is compromised
Solution Approach 1:
The patent applies periodic action by alternating between first and second gamma curves in different frame sets. During odd frame sets, the first gamma curve is used, and during even frame sets, the second gamma curve is used. This periodic switching allows the display to achieve improved lateral visibility during certain frames while maintaining adequate transmittance during other frames, resolving the contradiction between these two parameters.
Solution Approach 2:
The patent changes the gamma curve parameter between different frame sets to resolve the contradiction. By using a first gamma curve for one frame set and a second gamma curve for another frame set, the display can optimize lateral visibility during one frame set while preserving transmittance during the other, thus avoiding the need to permanently compromise either parameter.
2Manufacturing precision
If 3D effects are enhanced using binocular parallax, then 3D image quality is improved, but lateral visibility deteriorates
Solution Approach 1:
The patent uses periodic action by alternating between different gamma curves in different frame sets. This allows the display to maintain enhanced 3D effects during certain frames while restoring lateral visibility during other frames, resolving the contradiction between 3D image quality and lateral visibility.
Solution Approach 2:
The patent applies dynamics by making the gamma curve selection dynamic rather than static. The display adapts between first and second gamma curves based on the frame set being displayed, allowing it to dynamically balance between enhancing 3D effects and maintaining lateral visibility.
3Device complexity
If a single gamma curve is used for all frames, then simplicity is maintained, but display quality is compromised
Solution Approach 1:
The patent applies periodic action by using a first gamma curve for odd frame sets and a second gamma curve for even frame sets. This periodic alternation improves display quality by optimizing different parameters at different times while maintaining a relatively simple driving method that only requires alternating between two predefined gamma curves.
Data Source
AI summary
A method of driving a display device includes displaying an image corresponding to a left eye image signal during a first frame set including one or more frames and displaying an image corresponding to a right eye image signal during a second frame set including one or more successive frames, in which the first frame set and the second frame set include at least one frame displaying a first image according to a first gamma curve and at least one frame displaying a second image according to a second gamma curve, and the first frame set and the second frame set include two successive frames displaying the second image.