Switch Lens Array 3D Display Gamma Correction Crosstalk
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Solution Overview
Problem
Existing 3D display technologies face challenges in accurately generating 3D spatial information and improving image quality for three-dimensional images.
Innovation Solution
A display device equipped with a switch lens array and a driving controller that converts image signals into 2D or 3D image data based on reference and correction gamma values, respectively, to enhance 3D image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a light field method is used to generate 3D spatial information, then 3D image quality is improved, but device complexity increases due to the need for switch lens array and gamma correction mechanisms
Solution Approach 1:
The patent employs a switch lens array that dynamically changes its configuration based on display mode (2D or 3D). The lens array switches between different states to control light paths, enabling the system to adapt between flat and three-dimensional image projection without requiring multiple fixed optical systems, thus managing complexity while maintaining 3D quality.
Solution Approach 2:
The driving controller adjusts the gamma value parameter when converting image signals for 3D display mode. By changing the gamma parameter from a reference value to a correction value, the system optimizes image quality for three-dimensional visualization, addressing the quality improvement need while using a software-based parameter adjustment rather than hardware complexity.
2Manufacturing precision
If gamma correction is applied to convert image signals for 3D display, then image quality is improved, but processing time increases
Solution Approach 1:
The system pre-stores multiple gamma correction lookup tables corresponding to different depth ranges before actual display. When 3D mode is activated, the controller simply selects the appropriate pre-computed lookup table based on depth information, rather than performing complex real-time gamma correction calculations, thus reducing processing time while maintaining quality.
Solution Approach 2:
The driving controller receives depth information as feedback about the 3D image content and uses this to select the appropriate gamma correction parameters. This feedback mechanism allows the system to optimize processing by choosing correction values tailored to the specific depth characteristics of the input image, improving efficiency.
3Manufacturing precision
If switch lens array is used to convert 2D images to 3D images, then 3D spatial information is improved, but crosstalk between left and right eyes increases
Solution Approach 1:
The switch lens array is designed with different focal lengths for different spatial regions. By controlling which lenses are active and their specific focal lengths, the system optimizes light paths for specific depth ranges and eye positions. This local optimization reduces crosstalk by ensuring that light from the left eye primarily reaches the left eye and similarly for the right eye, while maintaining accurate 3D spatial information.
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 solution effectively improves the image quality of 3D images by accurately converting image data and reducing crosstalk, resulting in a more immersive and accurate 3D viewing experience.
Implementation Method 1
a method of controlling the direction of refraction of light by using an array of lenses
Data Source
AI summary
Disclosed is a display device. A display panel outputs a first image in a first mode and outputs a second image in a second mode. A switch lens array is placed on the display panel and outputs the first image as a two-dimensional (2D) image in the first mode and converts the second image into a three-dimensional (3D) image in the second mode. A driving controller receives an image signal, converts the image signal into 2D image data based on a reference gamma value, and converts the image signal into 3D image data based on a correction reference gamma value different from the reference gamma value. A driving controller includes a gamma selection unit that selects one correction gamma value among a plurality of correction gamma values as the correction reference gamma value depending on predetermined depth information of the 3D image.