Gate Driving Circuit for Directional Vehicle Display Control
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Solution Overview
Problem
Display apparatuses in vehicles face challenges in providing information without distracting drivers, necessitating a solution to control pixel circuits and viewing angles effectively.
Innovation Solution
A gate driving circuit with mode controllers and node controllers to manage emission signals based on node potentials and clock signals, enabling control of pixel circuits and viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a display apparatus provides information to drivers and passengers in a vehicle, then information delivery capability is improved, but driver distraction and safety risks increase
Solution Approach 1:
The patent applies local quality by controlling different regions of the display to show different content with different viewing angles. Specifically, the display apparatus restricts certain content to be viewable only from specific directions, ensuring that drivers cannot access distracting content while passengers can view information freely. This spatial differentiation of content accessibility resolves the contradiction between information delivery and driver safety.
Solution Approach 2:
The patent implements dynamics through mode controllers that dynamically adjust the emission signals and viewing angle restrictions based on detected vehicle states (such as whether the vehicle is in motion or stationary). When the vehicle is moving, the system automatically restricts content accessibility to prevent driver distraction, while allowing full access when stationary. This dynamic adaptation resolves the contradiction by changing system behavior according to operational context.
2Reliability
If a display apparatus controls viewing angles to prevent driver distraction, then driver safety is improved, but information accessibility to all users deteriorates
Solution Approach 1:
The patent uses dynamics by implementing mode controllers that switch between different operational modes based on vehicle state detection. In driving mode, the system restricts viewing angles to prioritize driver safety, while in passenger mode or when stationary, it expands accessibility to all users. This dynamic mode switching resolves the contradiction by adapting information accessibility to the current safety requirements.
Solution Approach 2:
The patent applies feedback through detectors that monitor vehicle operational states (motion, parking, etc.) and feed this information back to the gate driving circuit and mode controllers. Based on this feedback, the system automatically adjusts content accessibility and viewing angle restrictions, ensuring driver safety while maintaining optimal information delivery to appropriate users. This closed-loop control resolves the contradiction between safety and accessibility.
Data Source
AI summary
A gate driving circuit includes a first mode controller configured to output a first emission signal based on at least one of a potential of a first node and a potential of a second node to a first output line in response to reception of a first mode signal, a second mode controller configured to output a second emission signal based on at least one of the potential of the first node and the potential of the second node to a second output line in response to reception of the second mode signal, and a node controller configured to control the potential of the first node and the potential of the second node by using at least one of a start signal, a first clock signal and a second clock signal.