3D Display System Brightness Optimization via Shutter Synchronization
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Solution Overview
Problem
Conventional 3D display systems suffer from lower display brightness and higher production costs due to the inefficiency of existing technologies, particularly the need for black images between frames which reduce the effective display time and increase power consumption.
Innovation Solution
A 3D display system with an OLED panel and 3D shutter glasses, where each frame includes a left-eye and right-eye data signal with corresponding image and blank signals, and the shutters are managed to maintain a 3:7 to 2:3 display time ratio for image to blank signals, operating at a 120 Hz frame rate with infrared synchronization for improved brightness and reduced production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If black images are displayed between left-eye and right-eye frames, then crosstalk between frames is eliminated, but display brightness decreases and power consumption increases
Solution Approach 1:
The patent applies continuity of useful action by eliminating black image frames and maintaining continuous display of useful image content. The 120Hz refresh rate with alternating left-eye and right-eye frames ensures that the display panel continuously presents meaningful visual information without interruption by black frames, thereby maintaining high brightness while preventing crosstalk through synchronized shutter control.
Solution Approach 2:
The patent employs periodic action through the 120Hz refresh rate that alternates between left-eye and right-eye frames in a regular cycle. This periodic display pattern, synchronized with the periodic opening and closing of the 3D shutters, ensures that each eye receives its intended frame at the correct moment, eliminating crosstalk while maintaining continuous useful display output.
2Reliability
If black images are displayed between frames, then frame separation is achieved, but effective display time is reduced to 50%
Solution Approach 1:
The patent eliminates the 50% time loss by removing black image frames entirely. The display operates continuously at 120Hz, presenting alternating left-eye and right-eye image frames without interruption. This continuous useful action doubles the effective display time compared to conventional 240Hz systems with black frames, while frame separation is achieved through temporal synchronization with the 3D shutters.
Solution Approach 2:
The patent uses periodic action with a 120Hz refresh rate that alternates between left-eye and right-eye frames in a regular sequence. This periodic pattern, when synchronized with the periodic operation of the 3D shutters, achieves complete frame separation without requiring black image frames, thereby maximizing the effective display time to 100% of the refresh cycle.
3Reliability
If OLED display panel operates at 240 Hz, then crosstalk is eliminated, but power consumption and production cost increase
Solution Approach 1:
The patent changes the refresh rate parameter from conventional 240Hz to 120Hz, which reduces power consumption and production costs. By combining this parameter change with temporal synchronization of the OLED display panel and 3D shutters, the system maintains effective crosstalk elimination at the lower refresh rate, thereby reducing energy consumption while preserving display quality.
Solution Approach 2:
The patent employs periodic action with a 120Hz refresh rate that alternates between left-eye and right-eye frames. This periodic operation, when synchronized with the periodic opening and closing of the 3D shutters, achieves crosstalk elimination without requiring the higher 240Hz refresh rate, thereby reducing power consumption and production costs while maintaining reliable frame separation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system enhances display brightness by optimizing the display time ratio of image to blank signals and reduces production costs by eliminating the need for black images between frames, resulting in improved visual output without increased manufacturing expenses.
Implementation Method 1
Organic Light-Emitting Diodes (OLEDs) are widely used by display manufacturers, due to the features like being self-luminous, no backlighting, high contrast, being thin, wide viewing angle, and fast response
Implementation Method 2
the OLED display panel includes an infrared emitter for emitting a light with a frequency equaling to the frame rate of the OLED display panel
Implementation Method 3
3D shutter glasses having a left eye shutter and a right-eye shutter
Data Source
AI summary
The present invention provides a 3D display system, which includes an OLED display panel and 3D shutter glasses. The OLED display panel includes a plurality of data lines for transmitting data signals, a plurality of scan lines for transmitting scan signals and a plurality of pixel units. When the pixel unit displays the left-eye image data signal and the right-eye image data signal, the left-eye shutter and the right-eye shutter of the 3D shutter glasses are both closed. When the pixel unit displays the left-eye blank data signal, the left-eye shutter of the 3D shutter glasses is open. When the pixel unit displays the right-eye blank data signal, the right-eye shutter of the 3D shutter glasses is open.