Shutter Glasses Timing for 3D Display Crosstalk
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3D image frame display systems suffer from slow backlight response, leading to crosstalk between left-eye and right-eye frames due to inadequate color saturation and response time of LED devices.
Innovation Solution
A 3D image frame display system comprising a liquid crystal panel, a backlight module with LED devices using blue, red, and green phosphors, and shutter glasses with controlled lenses to ensure the lenses are turned on after the backlight module and turned off before it, preventing the user from seeing the slow response.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a new LED device with blue chip, red phosphor and green phosphor is used to provide great color saturation, then color saturation is improved, but response time becomes slow causing crosstalk between left-eye frame and right-eye frame
Solution Approach 1:
The shutter glasses lenses are turned on after the backlight module and turned off before the backlight module, so that the user does not see the slow response period of the backlight. This preliminary timing arrangement ensures that the lens is already in the correct state when the backlight completes its transition, eliminating visible crosstalk while maintaining the color saturation benefits of the new LED device.
2Use of energy by moving object
If the backlight module is turned off completely between frames, then power consumption is reduced, but the slow response time causes residual light to leak into the other eye's frame
Solution Approach 1:
The shutter glasses lenses act as an intermediary that blocks the residual light from the slow-response backlight module. By controlling the lens timing to be slightly ahead of the backlight module, the system allows the backlight to power down completely for energy savings while the lens prevents any residual light during the transition period from reaching the user's eyes, thus eliminating crosstalk.
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
This solution effectively eliminates the slow backlight response, providing improved color saturation and reducing crosstalk, resulting in a better 3D image frame effect by synchronizing the lens operation with the backlight module's timing.
Implementation Method 1
a new LED (B+Rnew LED) composed by a blue chip, a red phosphor and a green phosphor is introduced recently
Data Source
AI summary
A 3D image frame display system comprises a liquid crystal panel for alternately displaying a plurality of left-eye frames and a plurality of right-eye frames; a backlight module providing light to the liquid crystal panel when being turned on; and a pair of shutter glasses including a left lens and a right lens, wherein the left lens or right lens is turned on for passing through the light and turned off for shielding the light from the backlight module for corresponding to the left-eye frames or the right-eye frames; wherein, in a time period for forming one of the left-eye frames or one of the right-eye frames, the left lens or the right lens is not turned on earlier than the backlight module, and the left lens or the right lens is not turned off later than the backlight module.