Acousto-optic Element Array Driving Structure for Holographic Displays
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Solution Overview
Problem
Current display technologies using acousto-optic elements face challenges in efficiently driving acousto-optic element arrays for high-definition and holographic displays, particularly in controlling light beam phase and intensity for 2D and 3D image rendering.
Innovation Solution
The proposed solution involves an acousto-optic element array structure comprising a gate driver, electrical data driver, and wave data driver, which includes an acousto-optic generator, light supply, and wave transducers. This structure allows for the selective activation and data transmission to acousto-optic elements, enabling precise control of light beam direction, phase, and intensity through transistor switches and waveguides, facilitating 2D and 3D image switching and holographic displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional display technologies using acousto-optic elements are used, then basic light modulation is achieved, but efficient driving for high-definition and holographic displays is not achieved
Solution Approach 1:
The patent divides the driving structure into three independent driver units: gate driver, electrical data driver, and wave data driver. Each driver handles specific control signals separately, allowing parallel processing and reducing the complexity of a single monolithic driver while achieving high-definition display performance through coordinated operation of multiple specialized drivers.
2Manufacturing precision
If acousto-optic element arrays are used for high-definition and holographic displays, then image quality is improved, but control complexity increases
Solution Approach 1:
The patent applies different types of control signals to different components of the acousto-optic element array. Gate signals control element activation, electrical data signals control phase modulation through electro-optic modulators, and wave data signals control intensity modulation through wave transducers. This specialized local control approach achieves precise light beam control while managing overall system complexity through functional separation.
3Productivity
If multiple driver units are introduced, then driving efficiency is improved, but device complexity increases
Solution Approach 1:
Each of the three driver units (gate driver, electrical data driver, wave data driver) is designed to be multi-functional, handling multiple control tasks within their respective domains. The gate driver manages element selection and timing, the electrical data driver handles phase modulation data, and the wave data driver manages intensity modulation. This multi-functionality reduces the need for additional specialized components, improving driving efficiency without proportionally increasing device complexity.
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 configuration enables efficient and precise control of light beams for 2D and 3D image rendering, reducing component costs and power consumption, and allowing for the creation of multi-view 3D images and holograms by adjusting the exit direction and phase of light emitted from the display panel.
Implementation Method 1
An acousto-optic effect is an effect in which an optical characteristic of a medium is transformed by a sound wave or an ultrasonic wave. A light beam, which is incident on a medium having a transformed optical characteristic, is differently modulated and emitted according to the degree of transformation.
Implementation Method 2
an electro-optic modulator configured to control the acousto-optic generator
Data Source
AI summary
An acousto-optic element array includes: acousto-optic elements each including an acousto-optic generator, a light supply, and a wave transducer; a gate driver that selects an acousto-optic element to be driven from among the acousto-optic elements; an electrical data driver that is connected to an electrical wire and transmits electrical data to an electro-optic modulator configured to control the acousto-optic generator of the selected acousto-optic element; and a wave data driver that is connected to a waveguide and transmits wave data to the wave transducer of the selected acousto-optic element.