Display Driving Circuit Independent Image Generation
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Solution Overview
Problem
Existing electronic devices require frequent activation of the application processor to output touch-related images or digital/analog watch hands, leading to increased power consumption and inefficient display driving circuit functionality.
Innovation Solution
The method involves a display driving circuit that receives main image data from a processor, generates additional images independently, and merges them with the main images to output on the display panel, reducing the need for frequent processor activation by performing calculations for watch hands and zoomed-in images within the display driving circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the application processor is repeatedly driven to output touch-related images or watch hands, then the display functionality is maintained, but power consumption increases
Solution Approach 1:
The patent divides the display driving functionality into two segments: the application processor handles main image data output, while the display driving circuit independently generates additional images (touch-related images, watch hands, second hands). This segmentation allows the application processor to remain in a low-power state while the display driving circuit maintains display functionality through independent image generation capabilities.
Solution Approach 2:
The display driving circuit is equipped with independent image generation capabilities that allow it to produce additional images without requiring continuous application processor intervention. The circuit can autonomously calculate and output watch hands, second hands, and touch-related images, enabling self-service operation that reduces power consumption while maintaining display functionality.
2Adaptability or versatility
If the application processor generates all display images, then image quality is maintained, but the display driving circuit functionality is underutilized
Solution Approach 1:
The patent enhances the display driving circuit by equipping it with multi-functional capabilities: it can process main image data from the application processor, independently generate additional images (watch hands, second hands, touch-related images), and merge these images for display output. This multi-functionality充分利用 the display driving circuit's potential, transforming it from a simple signal transmitter into an active image processing unit.
Solution Approach 2:
The patent implements a merging mechanism where the display driving circuit combines the main image data received from the application processor with independently generated additional images. This merging approach allows both image sources to contribute to the final display output, optimizing the utilization of available resources while maintaining comprehensive display functionality.
3Speed
If the processor continuously updates display content, then display responsiveness is improved, but energy efficiency deteriorates
Solution Approach 1:
The patent implements periodic action by having the application processor update main image data at standard display intervals while the display driving circuit continuously generates additional images at the required refresh rate. This periodic update strategy from the processor, combined with continuous generation from the display driving circuit, maintains display responsiveness while minimizing processor activation and energy consumption.
Data Source
AI summary
A method of operating an electronic device is provided. The method includes receiving, by a display driving circuit of the electronic device, main image data over a first channel from a first processor or a second processor of the electronic device, outputting, by the display driving circuit, a main image on a display panel of the electronic device based on the main image data, generating, by the display driving circuit, an additional image different from the main image, and merging, by the display driving circuit, the main image with the additional image and outputting, by the display driving circuit, the merged image on the display panel.