Display Driving Circuit for Viewing Angle Switching and Privacy
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Solution Overview
Problem
Existing electronic devices lack the ability to seamlessly switch between wide and narrow viewing angle modes, affecting display quality and user privacy in environments where multiple viewers are present.
Innovation Solution
An electronic device with a display panel and driving circuit that includes first and second light emitting elements, controlled by switching circuits and a driving controller, which adjusts the compensation frequency during mode switching to enhance display quality and privacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display panel operates in wide viewing angle mode, then viewing angle is improved, but privacy protection deteriorates
Solution Approach 1:
The display panel dynamically switches between wide viewing angle mode and narrow viewing angle mode based on operational context. The system includes a mode switching controller that receives mode switching signals and adjusts the driving signals accordingly, enabling the display to transition between different viewing angle characteristics as needed
2Adaptability or versatility
If mode switching is implemented, then privacy control is improved, but display quality during transition deteriorates
Solution Approach 1:
The system performs preliminary actions during mode switching by applying compensation frequencies to the driving signals. The mode switching controller generates compensation signals that pre-adjust the display panel's response during the transition period, preventing display quality degradation before it occurs
Solution Approach 2:
The system uses feedback mechanisms to monitor the display panel's response during mode switching and adjusts compensation frequencies accordingly. The controller receives feedback about the switching state and modifies driving signals to maintain display quality throughout the transition
3Reliability
If compensation frequency is increased during mode switching, then display quality is improved, but energy consumption increases
Solution Approach 1:
The compensation frequency is applied periodically only during the mode switching period rather than continuously. The mode switching controller activates compensation signals temporarily when transitioning between modes, then returns to normal driving frequencies, reducing overall energy consumption while maintaining display quality during critical transition moments
Data Source
AI summary
Disclosed is an electronic device including a display panel and a driving circuit. A pixel includes a first light emitting element, a second light emitting element, and a pixel circuit unit. The pixel circuit unit includes a first switching circuit for applying a driving current to the first light emitting element in response to a first switching signal activated in a first mode, and a second switching circuit for applying the driving current to the second light emitting element in response to a second switching signal activated in a second mode. The driving signal has a compensation frequency during a mode switching period set based on a mode switching time point. The compensation frequency is higher than a driving frequency of the driving signal during a first mode period or a second mode period different from the mode switching period.