Dynamic Oscillator Frequency Control for Display Communication Interference
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Solution Overview
Problem
In display devices with communication functions, the fixed oscillation frequency of oscillators in the display driver component can cause harmonic waves that interfere with the communication component, leading to poor communication quality and limiting the communication operating frequency band.
Innovation Solution
An oscillation frequency control system that acquires current operating information of the communication component, determines the appropriate oscillation frequency for each oscillator to ensure that harmonic waves fall outside the communication operating frequency band, and controls the oscillators to operate at these frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the oscillator operates at a fixed frequency, then the display driver component can provide stable clock signals, but harmonic waves generated by the oscillator interfere with the communication component
Solution Approach 1:
The oscillator frequency is changed from fixed to dynamically adjustable. The system detects the communication operating frequency band and accordingly adjusts the oscillator frequency to a value that avoids generating harmonic waves within the communication band, thereby eliminating interference while maintaining stable operation
Solution Approach 2:
The oscillator frequency parameter is modified based on the detected communication operating conditions. By changing the frequency parameter to specific values outside the communication band, the system prevents harmonic wave interference while keeping the display driver functioning properly
2Reliability
If the oscillator frequency is adjusted to avoid communication band interference, then communication quality improves, but the system complexity increases
Solution Approach 1:
The system implements feedback by detecting the communication operating frequency band and using this information to adjust the oscillator frequency. This closed-loop approach ensures communication quality while managing system complexity through intelligent control rather than hardware complexity
Solution Approach 2:
The oscillator serves multiple functions: providing stable clock signals for the display driver while simultaneously operating at frequencies that avoid interfering with communication. The single oscillator structure maintains simplicity while achieving multiple objectives through frequency selection
3Object-affected harmful factors
If the communication component operates in a fixed frequency band, then interference from oscillators can be avoided, but the adaptability of communication standards is limited
Solution Approach 1:
The system dynamically adapts the oscillator frequency based on the detected communication operating band. Whether the communication operates in 2G, 3G, 4G, 5G, or other bands, the oscillator automatically adjusts its frequency to avoid generating harmful harmonic waves, enabling universal compatibility across communication standards
Solution Approach 2:
The oscillator frequency parameter is changed according to the communication band being used. By storing multiple frequency options and selecting appropriate values based on detected communication standards, the system maintains interference avoidance while supporting diverse communication protocols
Data Source
AI summary
An oscillation frequency control method and system and a display device are provided. The oscillation frequency control system (3) is for a display device including a communication component (2) and a display driver component (1). The display driver component (3) includes at least one oscillator. The oscillation frequency control system (3) includes: an acquisition component (31) configured to acquire current operating information of the communication component (2); a determination component (32) configured to determine an oscillation operating frequency corresponding to each oscillator according to the current operating information; and a control component (33) configured to control each oscillator to operate at a corresponding oscillation operating frequency, wherein a frequency of a harmonic wave generated when each oscillator operates at the corresponding oscillation operating frequency falls outside a communication operating frequency band in which the communication component (2) currently operates.