Integrated Circuit Driving Voltage Output for Electro-Optical Panels
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Solution Overview
Problem
Existing integrated circuit devices driving electro-optical panels, such as EPD panels, increase the processing load of control devices due to the need for sequential changes in driving voltage, which can lead to inefficient display operations and increased processing burdens.
Innovation Solution
An integrated circuit device with a driving voltage output unit, display data storage unit, and driving waveform information output unit that automatically generates and outputs driving voltage based on display data, reducing the processing load by specifying and outputting driving voltage and waveform information to transition the panel from one display state to another, thereby optimizing display characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a control device externally controls the sequential changing of driving voltage, then the display can be driven, but the processing load of the control device is increased
Solution Approach 1:
The integrated circuit device autonomously generates and controls the sequential driving voltage waveforms without requiring external control device intervention. The waveform generation unit internally produces the necessary voltage sequences based on stored waveform information, enabling the display to drive itself while significantly reducing the processing burden on external control devices.
Solution Approach 2:
Driving waveform information is pre-stored in the integrated circuit device before actual display operation. This preliminary preparation of waveform data allows the circuit to quickly retrieve and apply appropriate driving sequences without real-time external calculation, further reducing control device processing load while maintaining display functionality.
2Adaptability or versatility
If driving voltage is sequentially changed to drive the panel, then display state transitions are achieved, but the processing load increases
Solution Approach 1:
Multiple driving waveform information are pre-stored in the integrated circuit device corresponding to different display state transitions. When a state change is required, the circuit simply retrieves the pre-prepared waveform information rather than calculating it in real-time, maintaining versatile display transition capability while significantly improving processing efficiency.
Solution Approach 2:
The integrated circuit device independently manages the sequential voltage changes required for display state transitions. By internally generating and controlling the driving voltage sequences based on stored waveform information, the system achieves adaptable state transitions without burdening external control devices with the processing complexity.
Data Source
AI summary
An integrated circuit device includes: a driving voltage output unit that outputs a driving voltage supplied to a segment electrode of an electro-optical panel; a display data storage unit that stores display data; and a driving waveform information output unit that outputs driving waveform information when a display state of the segment electrode is changed from a first display state corresponding to first display data to a second display state corresponding to second display data, wherein the driving voltage output unit outputs the driving voltage specified by the first display data and the second display data from the display data storage unit, and the driving waveform information from the driving waveform information output unit.